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[0001] This application is a continuation application and is based upon PCT/JP01/00963, filed on Feb. 9, 2001.
[0002] The present invention relates to a target practice laser transmitting/receiving system, a target practice laser transmitter, and a target practice laser receiver, more particularly relates to a target practice system more realistic and authentic compared with conventional target practice systems. The weapons used in this target practice system include aircraft, tanks, surface-to-air guided munitions, anti-tank guided munitions, antiaircraft machine guns, etc. and toys of weapons used in amusement centers.
[0003] In the present specification, “shoot” means outputting a shot trigger signal from a weapon corresponding to the act of shooting instead of an actual munition. Further, in the present specification, “simulate” means showing the actual fact of a shot, the fact of being shot, and the extent of damage if what was output were not a shot laser signal, but an actual munition.
[0004]
[0005]
[0006] In the conventional target practice laser transmitting/receiving system shown from
[0007] Therefore, the conventional target practice laser transmitting/receiving system suffered from the following problems:
[0008] (1) Since the shot effect had been judged at the point of time when the target side apparatus received the shot laser signal, the arrival time of an actual shot munition is not simulated and the positional relationship between the shooting side apparatus and the target side apparatus, the terrain, the difference in distance, the shot munition type, and the evasive action of the target side apparatus were not reflected in the judgment of the shot effect.
[0009] (2) In judging the extent of the damage due to the target side apparatus being hit, large damage, medium damage, small damage, or a near miss were judged by randomization at the point of time of receipt of the shot laser signal, so the positional relationship between the shooting side apparatus and the target side apparatus, the terrain, the difference in distance, the shot munition type, and the evasive action of the target side apparatus were also not reflected in the judgment of the extent of damage.
[0010] (3) Regarding simulation of a shot, since the same simulation by sound and smoke was given even with different shot munition types, the target side operator could not practice evasive action in accordance with the difference in the shot munition type after confirming a shot.
[0011] (4) Regarding the simulation of damage to the target side as well, since the same simulation by sound and smoke was given even with different extents of damage, the shooting side operator could not confirm the results of judgment of the shot effect including the extent of damage.
[0012] (5) Regarding the reevaluation after the end of practice, this evaluation was based only on the ID number of the shooting side apparatus, the shot weapon type information, the shot munition type information, and the results of judgment of the shot effect recorded in the recorder
[0013] An object of the present invention is to provide a target practice laser transmitting/receiving system, target practice laser transmitter, and target practice laser receiver enabling more realistic and efficient target practice by imparting them with the following functions:
[0014] (1) judging the shot effect including the positional relationship between the shooting side apparatus and the target side apparatus, the terrain, the difference in distance, the shot munition type, and the evasive action of the target side apparatus,
[0015] (2) reflecting into the judgment of the shot effect the effect of evasive action utilizing the terrain such as the target side hiding behind a hill,
[0016] (3) enabling the operator of the target side to confirm the shot weapon type and shot munition type visually or by sound in simulation of the shot,
[0017] (4) enabling the operator of the shooting side to confirm the extent of damage visually or by sound in simulation of the damage, and
[0018] (5) enabling reevaluation of whether the evasive action of the target side was appropriate by displaying a predetermined elapsed time after a shot, the shooter position, the path of the target, the path of the shot munition, the hit risk range, and the results of judgment of the shot effect after the end of the practice.
[0019] To achieve the above object, according to a first aspect of the present invention, there is provided a target practice laser transmitting/receiving system comprising a laser transmitter provided with a modulator for modulating a shot laser signal by position information of the laser transmitter and a laser receiver provided with an information extractor for extracting position information from the shot laser signal and a judgment unit for judging the shot effect of a shot from the laser transmitter using the extracted position information.
[0020] According to the first aspect, the positional relationship between the transmitter side and the receiver side can be reflected in the shot judgment.
[0021] According to a second aspect of the present invention, there is provided a system of the first aspect wherein the laser transmitter is a shooting side apparatus receiving a shot trigger signal from a shooting apparatus of a weapon and transmitting a shot laser signal in the shot direction. Further, the shooting side apparatus is provided with a shooting side position finder for generating position information and a shooting side recording apparatus for continuously recording the position information output from the shooting side position finder and is designed to transmit not only the ID number of the shooting side apparatus, the shot weapon type information, and the shot munition type information, but also the position information of the shooting side apparatus output from the shooting side position finder included in the shot laser signal in response to receipt of a shot trigger signal from the shooting apparatus of the weapon.
[0022] According to this second aspect, the positional relationship between the shooting side apparatus and the target side apparatus, the difference in distance, the shot munition type., and the shot weapon type can be reflected in the shot judgment.
[0023] According to a third aspect of the present invention, there is provided a system of the second aspect wherein the shooting side position finder also generates time information of the time the shooting side position finder generated the position information, the shooting side recording apparatus continuously records the time information output from the shooting side position finder as well, and the transmitter transmits not only the position information of the shooting side apparatus, but also the time information output from the shooting side position finder included in the shot laser signal in response to receipt of a shot trigger signal from the shooting apparatus of the weapon.
[0024] According to this third aspect, the positional relationship and difference in distance between the shooting side apparatus and the target side apparatus can be reflected in the shot judgment corresponding to the time.
[0025] According to a fourth aspect of the present invention, the laser receiver is a target side apparatus for receiving the shot laser signal from the laser transmitter and judging the shot effect; said target side apparatus is provided with a target side position finder for generating position information of said target side apparatus, a target side recording apparatus for continuously recording position information output from the target side position finder, and a munition type parameter recorder for recording the munition type parameters necessary for calculation of a hit risk range for each shot munition type and uses the position information of the target side apparatus obtained from the target side position finder when receiving a shot laser signal transmitted by the shooting side apparatus, the shot weapon type information included in the shot laser signal transmitted by the shooting side apparatus obtained from the munition type parameter recorder, and munition type parameters including the velocity of the shot munition recorded for each shot munition type information, the plurality of ranges of tracking of a target by a shot munition set for the different states of damage, and the effective time or effective range of the shot munition to calculate and record the hit risk range by a coordinate range of a 3D reference system and compares the recorded hit risk range and position of the target side apparatus obtained from the target side position finder so as to judge the shot effect.
[0026] According to the fourth aspect, the shot weapon type, the shot munition type, and the hit risk range can be calculated by a coordinate range of a 3D reference system.
[0027] Further, by comparing the calculated hit risk range and the position of the target side apparatus obtained by the target side position finder so as to judge the shot effect, it becomes possible to judge the shot effect including the difference in distance between the shooting side apparatus and the target side apparatus, the shot munition type, the shot weapon type, and the evasive action of the target side apparatus.
[0028] According to a fifth aspect of the present invention, there is provided the fourth aspect wherein the target side position finder also generates time information of the time of generation of the position information, the target side recording apparatus also records time information output from the target side position finder, the hit risk range is calculated and recorded for each predetermined elapsed time from a shot, and the shot effect is judged for every predetermined elapsed time from a shot.
[0029] According to the fifth aspect, the shot effect can be judged every predetermined elapsed time from a shot.
[0030] According to a sixth aspect of the present invention, there is provided the fourth or fifth aspect wherein the target practice laser transmitting/receiving system is further provided with a munition type parameter write apparatus for preparing munition type parameters required for calculation of the hit risk range and writing them in the target side apparatus, and said munition type parameter write apparatus is provided with a means for preparing and recording the munition type parameters for each shot weapon type information and shot munition type information and writing them in the munition type parameter recorder of the target side apparatus.
[0031] According to the sixth aspect, it becomes possible to write the munition type parameters required for calculation of the hit risk range in the munition type parameter recorder of the shooting side apparatus.
[0032] According to a seventh aspect of the present invention, there is provided the fifth aspect wherein the shooting side apparatus is further provided with a terrain recorder for recording coordinate ranges of the 3D reference system of terrain-based safe regions, calculates and records a shot heading based on position information of the target side apparatus obtained from the target side position finder for each elapse of a predetermined time from receiving a shot laser signal transmitted from the shooting side apparatus and position information of the shooting side apparatus obtained from the shot laser signal transmitted by the shooting side apparatus, and compares the coordinate ranges of the 3D reference system of the terrain-based safe regions recorded by the terrain recorder for each heading at which the target side apparatus is shot and the position of the target side apparatus obtained from the target side position finder so as to judge the shot effect.
[0033] According to the seventh aspect, it becomes possible to also reflect the effect of evasive action utilizing the terrain, such as the target side hiding behind a hill, in the judgment of the shot effect.
[0034] According to an eighth aspect of the present invention, the target practice laser transmitting/receiving system is further provided with a terrain write apparatus for calculating and recording terrain-based safe regions for each heading at which the target side apparatus is shot and writing them in the target side apparatus, and the terrain write apparatus is provided with a means for calculating and recording safe regions caused by specific terrain able to be used for evasive action of a shot in actual practice grounds, that is, projecting terrain and recessed terrain, for each heading at which the target side apparatus is shot as the range giving a dead angle from the shooting side apparatus and arranging them on a map of the practice grounds matched with terrain of the practice grounds so as to calculate and record the terrain-based safe regions by coordinate ranges of the 3D reference system and a means for writing the calculated terrain-based safe regions in the terrain recorder of the shooting side apparatus.
[0035] According to the eighth aspect, it becomes possible to write the calculated terrain-based safe regions in the terrain recorder of the shooting side apparatus.
[0036] According to a ninth aspect of the present invention, the shooting side apparatus is further provided with a shot simulator including a plurality of smoke generators of different smoke colors for simulating a shot when receiving a shot trigger signal of a weapon and changes the color of the smoke to simulate a shot by selection of one of the plurality of smoke generators in accordance with the shot munition type.
[0037] According to the ninth aspect, by changing the color of the smoke in accordance with the shot munition type to simulate a shot, it is possible for the operator at the target side to visually confirm the shot weapon type and the shot munition type.
[0038] According to a 10th aspect of the present invention, the target side apparatus is further provided with a smoke generator and changes the amount of smoke in accordance with the results of judgment of the shot effect to simulate the damage.
[0039] According to the 10th aspect, by changing the amount of smoke in accordance with the extent of damage for simulation when results of the judgment of the shot effect are in, the operator at the shooting side can visually confirm the extent of damage.
[0040] According to an 11th aspect of the present invention, the target side apparatus is provided with an evasive action recorder for recording evasive action of the target side apparatus when receiving a shot laser signal transmitted by the shooting side apparatus and records in the evasive action recorder the position of the target side apparatus for every elapse of a predetermined time from receiving the shot laser signal transmitted by the shooting side apparatus, position of the shooting side apparatus, position of the shot munition, a plurality of ranges of tracking of a target by a shot munition set for the different states of damage, the heading at which the target side apparatus was shot, and the results of judgment of the shot effect.
[0041] According to the 11th aspect, data for reevaluation of the target practice-after the target practice can be held in the evasive action recorder.
[0042] According to a 12th aspect of the present invention, the system is further provided with an evasive action evaluation apparatus for reading and displaying the path of movement of the target side apparatus recorded when the target side apparatus is shot at, said evasive action evaluation apparatus provided with a means for reading the position of the target side apparatus recorded in the evasive action recorder of the target side apparatus, position of the shooting side apparatus, position of the shot munition, plurality of ranges of tracking of a target by a shot munition set for the different states of damage, heading at which the target side apparatus is shot, and results of judgment of the shot effect and a means for displaying and recording the position of the shooting side apparatus, heading at which the target side apparatus is shot, hit risk range, path of the target side apparatus, and results of judgment of the shot effect for a predetermined elapsed time after shooting by the read data.
[0043] According to the 12th aspect, the effect of a shot and the evasive action of the target side apparatus can be reevaluated after the practice.
[0044] According to a 13th aspect of the present invention, there is provided the first aspect wherein the laser receiver is a target side apparatus receiving a shot laser signal from the laser transmitter to judge the shot effect; and said target side apparatus is provided with a target side position finder for generating position information of said target side apparatus and a target side recording apparatus for continuously recording the position information output from the target side position finder and is designed to calculate the difference in distance between the shooting side apparatus and the target side apparatus at the time of a shot from the position information of the target side apparatus obtained by the target side position finder and position information of the shooting side apparatus obtained from the shot laser signal transmitted by the shooting side apparatus and judge the extent of damage in accordance with the difference in distance when receiving a shot laser signal transmitted by the shooting side apparatus and when the modulated shot weapon type information included in the shot laser signal transmitted by the shooting side apparatus indicates a small weapon such as a rifle or pistol.
[0045] According to the 13th aspect, in target practice by a rifle, pistol, or other small weapon, it is possible to impart a difference to the extent of damage in accordance with the difference in distance between the shooting side and the target side when judging the shot effect. Due to this, not only in target practice, but also in man-to-man shooting simulation games etc. in attractions at amusement centers, the invention can be used for setting the power of simulated weapons in accordance with the difference in distance between a shooter and a target.
[0046] According to a 14th aspect of the present invention, there is provided the 13th aspect wherein the target side position finder also generates time information of the time when the target side position finder generated the position information, and said target side recording apparatus also continuously records the time information output from the target side position finder.
[0047] According to the 14th aspect, the positional relationship and difference in distance between the shooting side apparatus and the target side apparatus in the 13th aspect can be reflected in the judgment of the shot corresponding to time.
[0048] According to a 15th aspect of the present invention, there is provided the third aspect wherein the laser receiver is a target side apparatus receiving a shot laser signal from the laser transmitter to judge the shot effect; and said target side apparatus is provided with a target side position finder for generating position information of said target side apparatus, a target side recording apparatus for continuously recording the position information output from the target side position finder, a means for detecting, updating, and recording the heading which the target side apparatus faces, and a means for calculating the heading shot at from the shooting side position information obtained from the shot laser signal transmitted by the shooting side apparatus and combining this with the heading which the target side apparatus faces to judge a damaged part when receiving the shot laser signal transmitted by the shooting side apparatus and judging the shot effect.
[0049] According to the 15th aspect, by comparing the heading shot at and the heading which the target side apparatus faces, it becomes possible to specify the damaged part when judging the shot effect. Due to this, not only in target practice, but also in man-to-man or vehicle-to-vehicle shooting simulation games etc. in attractions at amusement centers, the invention can be used for specifying a hit part.
[0050] According to a 16th aspect of the present invention, there is provided the fourth aspect wherein the system is provided with damage simulators comprised of smoke generators, vibrators, and speakers for simulation at a plurality of parts of the target side apparatus and is designed to simulate damage by a simulator in the vicinity of a damaged part in accordance with the judgment of a damaged part.
[0051] According to the 16th aspect, by providing a plurality of damage simulators comprised of smoke generators, vibrators, speakers, etc. for simulating damage at different parts and simulating a damaged part by a simulator in the vicinity in accordance with judgment of that part, it becomes possible for the operator at the shooting side and the operator at the target side to confirm a damaged part. Due to this, not only in target practice, but also in man-to-man and vehicle-to-vehicle shooting simulation games etc. in attractions at amusement centers, the invention can be used to specify a hit part.
[0052] According to a 17th aspect of the present invention, there is provided the third aspect wherein the laser receiver is a target side apparatus receiving a shot laser signal from the laser transmitter to judge the shot effect; and said target side apparatus is provided with a target side position finder for generating position information of said target side apparatus, a target side recording apparatus for continuously recording the position information output from the target side position finder, and a self recognizing means for comparing the position information of the target side apparatus and the position information of the shooting side obtained from the shot laser signal transmitted by the shooting side apparatus when receiving a shot laser signal transmitted by the shooting side apparatus and, when the position information are the same, deeming that a shot laser signal transmitted by the target side apparatus has been received by the target side apparatus and not judging the shot effect.
[0053] According to the 17th aspect, it becomes possible to prevent mistaken judgment of the shot effect due to mistaken reception of a laser signal due to reflection etc. without setting an ID number for each shooting side apparatus. Due to this, not only in target practice, but also in attractions at amusement centers, there is no longer a need for initialization to give an ID number to each player using a simulated weapon.
[0054] According to an 18th aspect of the present invention, there is provided the 17th aspect wherein the target side position finder also generates time information of the time when the target side position finder generated the position information, and the target side recording apparatus also continuously records the time information output from the shooting side position finder.
[0055] According to the 18th aspect, it is possible to reflect the positional relationship and difference in distance between the shooting side apparatus and the target side apparatus in the judgment of a shot corresponding to the time.
[0056] These features and actions of the present invention will become clearer from the following embodiments explained with reference to the attached drawings, in which:
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[0104] Below, embodiments of the present invention will be explained with reference to the drawings.
[0105] (Summary of All Embodiments of Present Invention)
[0106]
[0107] In
[0108] The setter
[0109] As the shooting apparatus
[0110] The transmitter
[0111]
[0112] In
[0113] The controller
[0114] The receiver
[0115] The evasive action recorder
[0116] The munition type parameter recorder
[0117] First, a summary of all of the embodiments of the present invention will be given by
[0118]
[0119]
[0120]
[0121]
[0122] On the other hand, at the target side, at step
[0123] After the shot, at step
[0124] Further, as shown from step
[0125] When actually using the present system for target practice, each weapon is provided with a shooting side apparatus and a target side apparatus for two-way practice.
[0126] (Embodiment Corresponding to Claims 1 to 3)
[0127]
[0128] On the other hand, at step
[0129] At step
[0130] Note that designing the position finder
[0131] Next, the transmission operation of the shot laser signal from the shooting side apparatus
[0132] As the position finder
[0133] To enable the position information and time information of the shooting side apparatus
[0134] The following Table 1 shows an example of the output data format of the GPS receiver and the data format at the time of extracting the necessary data and recording it in the RAM TABLE 1 Example of Output Data Format of GPS Receiver End- Age of ing data de- indi- Vehicle lim- SV 1d 10DE SV 1d IODE SV 1d IODE SV 1d IODE Sv 1d IODE Reserved Source cator ID iter Total (2 char) (2 char) (2 char) (2 char) (2 char) (2 char) (2 char) (2 char) (2 char) (2 char) (10 (1 char) (1 char) (8 char) (1 (107 char) char) char) 13 13 18 20 19 81 24 01 27 E4 00000000 3 2 ; ID = < 0001 ↓ ↓ ↓ ↓ ↓ ↓ ↓ ↓ ↓ ↓ ↓ ↓ ↓ ↓ Delete Delete Delete Delete Delete Delete Delete Delete Delete Delete Delete Delete Delete Delete Start- Alti- Number ing tude Hori- of delim- GPS time above zontal Vertical SVs SV iter of day UTM Y UTM X MSL velocity velocity Heading used 1d IODE SV 1d IODE SV 1d IODE (1 char) (8 char) (10 char) (11 char) (9 char) (4 char) (5 (4 char) (2 char) (2 (2 (2 char) (2 (2 char) (2 char) char) char) char) char) > 23772000 3922.01500 303.2138000 +00008505 0001 +0000 1980 08 04 9B 06 59 10 5D ↓ ↓ ↓ ↓ ↓ ↓ ↓ ↓ ↓ ↓ Delete De- Delete Delete De- De- Delete De- Delete De- lete lete lete lete lete Format for writing in RAM in controller Starting GPS time Altitude Ending Totalais, delimiter of day UTM Y UTM X above MSL delimiter the UTM (1 char) (8 char) (10 char) (11 char) (9 char) (1 char) (40 char) > 23772000 3922.01500 303.2138000 +00008505 <
[0135] In the output format of the GPS receiver shown in Table 1, only the time information, that is, the GPS Time, and the position information, that is, the UTM coordinates and altitude, are extracted.
[0136] The position information output data format of the GPS receiver sets the GPS receiver in advance so as become a local planar coordinate system, that is, a UTM coordinate system.
[0137] The coordinate output according to the UTM coordinate system is data of 11 char in the X-direction and 10 char or so in the Y-direction. If the region in which practice is performed using the present invention is limited to a certain extent, however, it is possible to reduce the amount of data carried in the shot laser signal by omitting the upper digits of the output coordinates and recording the data in the RAM
[0138] For the GPS time, 0:00 Japan time is given by 0 sec. The GPS receiver is set in advance so that the time repeats in subsequent day cycles.
[0139] The altitude sets the reference plane of the practice grounds. The GPS receiver is set in advance so that that altitude is output as 0 m.
[0140] The following Table 2 shows an example of the content of data and amount of data of the shot laser signal.
TABLE 2 Data content Amount of data Shot time GPS time 8 bytes Position X-component coordinate of UTM to 10 bytes information of Y-component coordinate of UTM to 11 bytes (shooter) Altitude coordinate to 9 bytes ID number 2 bytes Weapon type information 2 bytes Shot munition type information 2 bytes Total 44 bytes
[0141] As shown in Table 2, the content of the data of the shot laser signal is the shot time, the position information of oneself (shooting side apparatus
[0142] The shot time is made the GPS time recorded in the RAM
[0143] The ID number and shot weapon type information are made the content set by the setter
[0144] The ID number and the shot weapon type are set by the setter
[0145] The shot weapon type is made a helicopter, tank, surface-to-air guided munition, anti-tank guided munition, anti-aircraft gun, etc.
[0146] (Embodiment Corresponding to Claims 4 and 5)
[0147]
[0148] On the other hand, at step
[0149] In this way, in the present embodiment, the target side apparatus
[0150] Further, the target side apparatus
[0151] The target side apparatus
[0152] The munition type parameter recorder
[0153] The position information and time information of the target side apparatus
[0154] When receiving a shot signal transmitted by the shooting side apparatus
[0155] Note that in this embodiment as well, designing the target side position finder
[0156] Next, the operation for judgment of the shot effect performed by the target side apparatus
[0157] As the target side position finder
[0158] The output data format of a GPS receiver in the target side apparatus
[0159]
[0160] The following Table 3 shows the parameters for calculation of the hit risk range and their read locations:
TABLE 3 Parameter Format and unit Read location Shooting side (Xs, Ys, Zs) Shooter position position S UTM coordinates, information of altitude shot laser signal Target side (Xr, Yr, Zr) Latest position position R UTM coordinates, information of altitude oneself recorded in RAM in controller of target side apparatus Velocity V of [m/s] Read from shot munition munition type Range r1 of Radius of sphere parameter tracking of [m] recorder of target by shot Near miss range target side munition apparatus in Range r2 of Radius of sphere accordance with tracking of [m] shot weapon target by shot Small damage information and munition range shot munition Range r3 of Radius of sphere type information tracking of [m] of shot laser target by shot Medium damage signal. munition range Range r4 of Radius of sphere tracking of [m] target by shot Large damage munition range Effective time [s] Te of shot munition
[0161] As shown in Table 3, the position S (Xs, Ys, Zs) of the shooting side apparatus
[0162] The following Table 4 shows a data file of munition type parameters.
TABLE 4 Range r1 of Range r2 of Range r3 of Range r4 of tracking of tracking of tracking of tracking of Effective Velocity V target by target by target by target by time Te of Shot of shot shot shot shot shot shot Data munition munition munition munition munition munition munition no. Shot weapon type [m/s] [m] [m] [m] [m] [s] 1 Helicopter Missile 2 Machine gun 3 Rocket 4 Tank . . . 5 . . . . . . . . . . . . n . . . . . .
[0163] As shown in Table 4, the munition type parameter recorder
[0164] Four ranges of tracking of a target by shot munition, that is, parameters r1, r2, r3, and r4, are set to differentiate among the four states of damage of a near miss, small damage, medium damage, and large damage. The four parameters r1, r2, r3, and r4 set as the ranges of tracking of a target by shot munition are given the relationship of r1>r2>r3>r4 to change the width of the hit risk range for each extent of damage.
[0165]
[0166] Next, at step
[0167] Next, at step
[0168] Next, the judgment of the shot effect comparing the calculated hit risk range and the position of the target side apparatus
[0169]
[0170] When the target side apparatus
[0171] That is, at step
[0172] The above calculation is repeated from the time the target side apparatus
[0173] (Embodiment Corresponding to Claim 6)
[0174]
[0175] As munition type parameters required for calculation of the hit risk range, the velocity of the shot munition, the plurality of ranges of tracking of a target by a shot munition set for the different states of damage, and the effective time or effective range of the shot munition are prepared.
[0176] A plurality of ranges of tracking of a target by a shot munition can be set to differentiate the extent of damage as being a near miss, small damage, medium damage, or large damage.
[0177] A table of munition type parameters is prepared for each shot weapon type information and shot munition type information used in the practice and written in the munition type parameter recorder of the shooting side apparatus
[0178] Next, the munition type parameter write apparatus for preparing and recording the munition type parameters required for calculation of the hit risk range and writing them in the munition type parameter recorder of the shooting side apparatus
[0179] As shown in Table 4, as munition type parameters required for calculation of the hit risk range, there are the velocity V of the shot munition, the plurality of ranges r1 to r4 of tracking of a target by a shot munition set for different states of damage, and the effective time Te or effective range of the shot munition.
[0180] The munition type parameters are prepared by entering numerical values into a PC from a keyboard.
[0181] For the velocity V of the shot munition, the velocity of the shot munition for each shot munition type is entered.
[0182] The range r of tracking of a target by a shot munition is a parameter for determining the width of a hit risk range from the expected position of a shot munition after t seconds.
[0183] For example four ranges of tracking of a target by a shot munition, that is, the parameters r1, r2, r3, and r4, are set for differentiating among a near miss, small damage, medium damage, and large damage as extents of damage. The r1, r2, r3, and r4 set as ranges of tracking of a target by a shot munition are given the relationship of r1>r2>r3>r4.
[0184] For the hit risk range at the target side apparatus
[0185] Therefore, if the shot munition type is a direct line munition like that of a machine gun, the range r of tracking of a target of the shot munition is set small and the width of the hit risk range from the position of the shot munition after t seconds is set narrow. If the shot munition is a missile or other guided munition, the range r of tracking of a target by the shot munition is made larger in accordance with its performance and the width of the hit risk range from the position of the shot munition after t seconds is set wide.
[0186] Further, by changing the difference among r1, r2, r3, and r4 in accordance with the shot weapon type and the shot munition type, the ranges of the near miss, small damage, medium damage, and large damage showing the extent of damage are changed to simulate the performance of the shot munition.
[0187] If the shot munition type is rounds of a machine gun or other munition type with a small destructive power, the values of the r1 and r2 determining the ranges of the near miss and small damage are set larger so as to broaden the hit risk range of the near miss and small damage and the values of the r3 and r4 determining the ranges of the medium damage and large damage are set smaller than the r1 and r2 so as to narrowly set the hit risk ranges of the medium damage and large damage.
[0188] If the shot munition is a missile or other munition type having a large destructive power where a hit equals large damage, the values of r1, r2, and r3 determining the ranges of the near miss, small damage, and medium damage are set small so as to narrow the hit risk range for the small damage near miss, small damage, and medium damage and the value of the r4 determining the range of the large damage is set to a value close to r1, r2, and r3 so as to set the hit risk range of the large damage wide.
[0189] The effective time Te of the shot munition is a setting determining until how many seconds from when a shot is fired the judgment of the shot effect should be repeated.
[0190] This is entered by calculation from the effective range and velocity of the shot munition by the formula Te=(Effective range)/(Velocity of shot munition).
[0191] (Embodiment Corresponding to Claim 7)
[0192] In this embodiment, the target side apparatus
[0193] That is, the controller
[0194] In the flow chart of judgment of the shot effect shown in
[0195] Explaining this embodiment in further detail, the terrain recorder
[0196] First, the routine for calculating the heading which the target side apparatus
[0197] The coordinate ranges of the UTM coordinate system of the terrain-based safe regions recorded in the terrain recorder
[0198]
[0199] The heading shot at is calculated divided into the XY plane shown in
[0200] On the XY plane, the shot heading a is made the north direction from 0° to 359° clockwise.
[0201] On the XZ plane, the shot angle β is made 0° to 90° as shown in
[0202] The parameter required for calculation of the shot heading a and the shot angle β, that is, the shooting side position, is made the latest position information of the target side apparatus
[0203] Similarly, the target side position is made the latest position information recorded in the RAM
[0204] The following Table 5 shows the parameters for calculation of the heading shot at and the read locations.
TABLE 5 Parameter Format and unit Read location Shooting side (Xs, Ys, Zs) Shooter position position S UTM coordinates, information of shot altitude laser signal Target side position (Xr, Yr, Zr) Latest position R UTM coordinates, information of altitude oneself recorded in RAM in controller of target side apparatus
[0205]
[0206] Next, at step
[0207] Next, at step
[0208] In this way, the shot heading α on the Xy plane is given as a heading based on the position of the target side on the XY plane.
[0209]
[0210] When the shooting side altitude is higher than the target side altitude, the angle is made 0° to 90°, while when the shooting side altitude is lower than the target side altitude, it is made −90° to 0°, so the shot angle β on the XZ plane is calculated by the illustrated sine function.
[0211] The shot heading a and shot angle β are calculated for each elapse of a predetermined time from receipt of a shot laser signal transmitted by the shooting side apparatus
[0212]
[0213] Next, at step
[0214] Next, at step
[0215] That is, at-step
[0216] When the target side apparatus
[0217] When the position of the target side apparatus
[0218] (Embodiment Corresponding to Claim 8)
[0219]
[0220]
[0221] Next, at step
[0222] Next, at step
[0223] Next, at step
[0224] Next, at step
[0225] Next, at step
[0226] The coordinate systems of the position finders of the shooting side apparatus
[0227] Next, this embodiment will be explained in further detail.
[0228] First, the method of calculating a safe region caused by specific terrain able to be used for evasive action taken due to a shot in an actual practice grounds, that is, terrain of projecting terrain, will be explained in detail.
[0229]
[0230] Further,
[0231] Using as the parameter necessary for calculation of a terrain-based safe region of projecting terrain the coordinates (x, y, h) of the peak of the projecting terrain, a terrain-based safe region is calculated for every shot heading a and shot angle β.
[0232] The following Table 6 shows an example of the preparation of terrain sample data for projecting terrain according to an embodiment of the present invention.
TABLE 6 Terrain-based safe region of projecting terrain Shot heading α [°] Shot angle β [°] A 0 to 90 −90 to 30 B 30 to 60 C 90 to 180 −90 to 30 D 30 to 60 E 180 to 270 −90 to 30 F 30 to 60 G 270 to 360 −90 to 30 H 30 to 60
[0233] In Table 6, the terrain-based safe regions caused by projecting terrain are calculated divided into A to H in accordance with the shot heading α and shot angle β.
[0234] That is, the terrain-based safe region of the projecting terrain
[0235] The terrain-based safe region of the projecting terrain
[0236] The terrain-based safe region of the projecting terrain in the case of being shot from a shot heading α of 90° to 180° and a shot angle β of −90° to 30° is designated as the region C (not shown).
[0237] The terrain-based safe region of the projecting terrain in the case of being shot from a shot heading a of 90° to 180° and a shot angle β of 30° to 60° is designated as the region D (not shown).
[0238] The terrain-based safe region of the projecting terrain in the case of being shot from a shot heading a of 180° to 270° and a shot angle β of −90° to 30° is designated as the region E (not shown).
[0239] The terrain-based safe region of the projecting terrain in the case of being shot from a shot heading a of 180° to 270° and a shot angle β of 30° to 60° is designated as the region F (not shown).
[0240] The terrain-based safe region of the projecting terrain in the case of being shot from a shot heading α of 270° to 360° and a shot angle β of −90° to 30° is designated as the region G (not shown).
[0241] The terrain-based safe region of the projecting terrain in the case of being shot from a shot heading a of 270° to 360° and a shot angle β of 30° to 60° is designated as the region H (not shown).
[0242] In this example, for a shot from a high angle of a shot angle β of 60° to 90°, it is deemed that there is no dead angle from the target side and that therefore there is no projecting terrain-based safe region.
[0243] For a shot from a medium angle of a shot angle β of 30° to 60°, a region giving a dead angle caused by projecting terrain in the case of a shot angle of 60° is deemed to be a terrain-based safe region.
[0244] For a shot from a low angle of a shot angle β of 90° to 30°, a region giving a dead angle caused by projecting terrain in the case of a shot angle of 30° is deemed to be a terrain-based safe region.
[0245] A shot from a medium angle of a shot angle of 30° to 60° results in a narrower terrain-based safe region of projecting terrain than a shot from a low angle of a shot angle of −90° to 30°.
[0246] Further, regarding the shot heading α as well, the shot heading is calculated divided into 0° to 90°, 90° to 180°, 180° to 270°, and 270° to 360°.
[0247] In the case of a shot heading of 0° to 90°, a range of the oblique heading of 180° to 270° is deemed as the terrain-based safe region of projecting terrain.
[0248] In the case of a shot heading of 90° to 180°, a range of the oblique heading of 270° to 360° is deemed as the terrain-based safe region of projecting terrain.
[0249] In the case of a shot heading of 180° to 270°, a range of the oblique heading of 0° to 90° is deemed as the terrain-based safe region of projecting terrain.
[0250] In the case of a shot heading of 270° to 360°, a range of the oblique heading of 90° to 180° is deemed as the terrain-based safe region of projecting terrain.
[0251] The following Table 7 shows the safe coordinate ranges of the safe regions A, B, C, E, and G caused by terrain of projecting terrain:
TABLE 7 Terrain-based safe region of projecting terrain Safe coordinate range A Parallelopiped a to p B Parallelopiped q to u C Parallelopiped v to ak E Parallelopiped a1 to bb G Parallelopiped bc to br
[0252] In Table 7, the coordinate range of the safe region A is described as the parallelepipeds “a” to “p” in the sense that in
[0253] The following Table 8 shows more specifically the method of calculation of a terrain-based safe region A of projecting terrain. In Table 8, the coordinates of the peak of the projecting terrain are-made (x, y, h).
[0254] Further, the terrain-based safe region A of projecting terrain is given by an OR of the coordinate ranges of the parallelopipeds “a” to “p” (see
[0255] As will be understood from this Table 8 and the following Table 9, the coordinate ranges of the parallelopipeds become smaller in the Z-direction the further from the coordinates of the peak of the projecting terrain.
TABLE 8 Range of X- Range of Y- Range of Z- Parallelopiped coordinates coordinates coordinates Parallelopiped a x-100 < X < x y-100 < Y < y Z < (17h-100)/1.7 Parallelopiped b x-200 < X < x y-200 < Y < y Z < (17h-200)/1.7 Parallelopiped c x-300 < X < x y-300 < Y < y Z < (17h-300)/1.7 Parallelopiped d x-400 < X < x y-400 < Y < y Z < (17h-400)/1.7 Parallelopiped e x-500 < X < x y-500 < Y < y Z < (17h-500)/1.7 Parallelopiped f x-600 < X < x y-600 < Y < y Z < (17h-600)/1.7 Parallelopiped g x-700 < X < x y-700 < Y < y Z < (17h-700)/1.7 Parallelopiped h x-800 < X < x y-800 < Y < y Z < (17h-800)/1.7 Parallelopiped i x-900 < X < x y-900 < Y < y Z < (17h-900)/1.7 Parallelopiped j x-1000 < X < x y-1000 < Y < y Z < (17h-1000)/1.7 Parallelopiped k x-1100 < X < x y-1100 < Y < y Z < (17h-1100)/1.7 Parallelopiped l x-1200 < X < x y-1200 < Y < y Z < (17h-1200)/1.7 Parallelopiped m x-1300 < X < x y-1300 < Y < y Z < (17h-1300)/1.7 Parallelopiped n x-1400 < X < x y-1400 < Y < y Z < (17h-1400)/1.7 Parallelopiped o x-1500 < X < x y-1500 < Y < y Z < (17h-1500)/1.7 Parallelopiped p x-1600 < X < x y-1600 < Y < y Z < (17h-1600)/1.7
[0256] The following Table 9 shows the method of calculation of a terrain-based safe region B of projecting terrain. In Table 9, the coordinates of the peak of the projecting terrain are made (x, y, h). Further, the safe region B caused by terrain of projecting terrain is given by an OR of the coordinate ranges of the parallelopipeds “q” to “u” (see FIGS. TABLE 9 Range of X- Range of Y- Range of Z- Parallelopiped coordinates coordinates coordinates Parallelopiped q x-100 < X < x y-100 < Y < y Z < (0.6h-100)/0.6 Parallelopiped r x-200 < X < x y-200 < Y < y Z < (0.6h-200)/0.6 Parallelopiped s x-300 < X < x y-300 < Y < y Z < (0.6h-300)/0.6 Parallelopiped t x-400 < X < x y-400 < Y < y Z < (0.6h-400)/0.6 Parallelopiped u x-500 < X < x y-500 < Y < y Z < (0.6h-500)/0.6
[0257] The following Table 10 shows the method of calculation of a terrain-based safe region C of projecting terrain. In Table 10, the coordinates of the peak of the projecting terrain are made (x, y, h). Further, the terrain-based safe region B of projecting terrain is given by an OR of the coordinate ranges of the parallelopipeds “v” to “ak” (not shown). Further, the parallelopipeds are given by an AND of the range of the X-coordinates, the range of the Y-coordinates, and the range of the Z-coordinates.
TABLE 10 Range of X- Range of Y- Range of Z- Parallelopiped coordinates coordinates coordinates Parallelopiped v x-100 < X < x y < Y < y + 100 Z < (17h-100)/1.7 Parallelopiped w x-200 < X < x y < Y < y + 200 Z < (17h-200)/1.7 Parallelopiped x x-300 < X < x y < Y < y + 300 Z < (17h-300)/1.7 Parallelopiped y x-400 < X < x y < Y < y + 400 Z < (17h-400)/1.7 Parallelopiped z x-500 < X < x y < Y < y + 500 Z < (17h-500)/1.7 Parallelopiped aa x-600 < X < x y < Y < y + 600 Z < (17h-600)/1.7 Parallelopiped ab x-700 < X < x y < Y < y + 700 Z < (17h-700)/1.7 Parallelopiped ac x-800 < X < x y < Y < y + 800 Z < (17h-800)/1.7 Parallelopiped ad x-900 < X < x y < Y < y + 900 Z < (17h-900)/1.7 Parallelopiped ae x-1000 < X < x y < Y < y + 1000 Z < (17h-1000)/ 1.7 Parallelopiped af x-1100 < X < x y < Y < y + 1100 Z < (17h-1100)/ 1.7 Parallelopiped ag x-1200 < X < x y < Y < y + 1200 Z < (17h-1200)/ 1.7 Parallelopiped ah x-1300 < X < x y < Y < y + 1300 Z < (17h-1300)/ 1.7 Parallelopiped ai x-1400 < X < x y < Y < y + 1400 Z < (17h-1400)/ 1.7 Paralleiopiped aj x-1500 < X < x y < Y < y + 1500 Z < (17h-1500)/ 1.7 Parallelopiped ak x-1600 < X < x y < Y < y + 1600 Z < (17h-1600)/ 1.7
[0258] The following Table 11 shows the method of calculation of a terrain-based safe region E of projecting terrain. In Table 11, the coordinates of the peak of the projecting terrain are made (x, y, h). Further, the terrain-based safe region E of projecting terrain is given by an OR of the coordinate ranges of the parallelopipeds “a1” to “bb” (not shown). Further, the parallelopipeds are given by an AND of the range of the X-coordinates, the range of the Y-coordinates, and the range of the Z-coordinates.
TABLE 11 Range of X- Range of Y- Range of Z- Parallelopiped coordinates coordinates coordinates Parallelopiped al x < X < x + 100 y < Y < y + 100 Z < (17h-100)/ 1.7 Parallelopiped am x < X < x + 200 y < Y < y + 200 Z < (17h-200)/ 1.7 Paralielopiped an x < X < x + 300 y < Y < y + 300 Z < (17h-300)/ 1.7 Parallelopiped ao x < X < x + 400 y < Y < y + 400 Z < (17h-400)/ 1.7 Parallelopiped ap x < X < x + 500 y < Y < y + 500 Z < (17h-500)/ 1.7 Parallelopiped ar x < X < x + 600 y < Y < y + 600 Z < (17h-600)/ 1.7 Parallelopiped as x < X < x + 700 y < Y < y + 700 Z < (17h-700)/ 1.7 Parallelopiped at x < X < x + 800 y < Y < y + 800 Z < (17h-800)/ 1.7 Parallelopiped au x < X < x + 900 y < Y < y + 900 Z < (17h-900)/ 1.7 Parallelopiped av x < X < x + 1000 y < Y < y + 1000 Z < (17h- 1000)/1.7 Parallelopiped aw x < X < x + 1100 y < Y < y + 1100 Z < (17h- 1100)/1.7 Parallelopiped ax x < X < x + 1200 y < Y < y + 1200 Z < (17h- 1200)/1.7 Parallelopiped ay x < X < x + 1300 y < Y < y + 1300 Z < (17h- 1300)/1.7 Parallelopiped az x < X < x + 1400 y < Y < y + 1400 Z < (17h- 1400)/1.7 Parallelopiped ba x < X < x + 1500 y < Y < y + 1500 Z < (17h- 1500)/1.7 Parallelopiped bb x < X < x + 1600 y < Y < y + 1600 Z < (17h- 1600)/1.7
[0259] The following Table 12 shows the method of calculation of a terrain-based safe region G of projecting terrain. In Table 12, the coordinates of the peak of the projecting terrain are made (x, y, h). Further, the terrain-based safe region G of projecting terrain is given by an OR of the coordinate ranges of the parallelopipeds “bc” to “br” (not shown). Further, the parallelopipeds are given by an AND of the range of the X-coordinates, the range of the Y-coordinates, and the range of the Z-coordinates.
TABLE 12 Range of X- Range of Y- Range of Z- Parallelopiped coordinates coordinates coordinates Parallelopiped bc x < X < x + 100 y-100 < Y < y Z < (17h-100)/1.7 Parallelopiped bd x < X < x + 200 y-200 < Y < y Z < (17h-200)/1.7 Parallelopiped be x < X < x + 300 y-300 < Y < y Z < (17h-300)/1.7 Parallelopiped bf x < X < x + 400 y-400 < Y < y Z < (17h-400)/1.7 Parallelopiped bg x < X < x + 500 y-500 < Y < y Z < (17h-500)/1.7 Parallelopiped bh x < X < x + 600 y-600 < Y < y Z < (17h-600)/1.7 Parallelopiped bi x < X < x + 700 y-700 < Y < y Z < (17h-700)/1.7 Parallelopiped bj x < X < x + 800 y-800 < Y < y Z < (17h-800)/1.7 Parallelopiped bk x < X < x + 900 y-900 < Y < y Z < (17h-900)/1.7 Parallelopiped bl x < X < x + 1000 y-1000 < Y < y Z < (17h-1000)/ 1.7 Parallelopiped bm x < X < x + 1100 y-1100 < Y < y Z < (17h-1100)/ 1.7 Parallelopiped bn x < X < x + 1200 y-1200 < Y < y Z < (17h-1200)/ 1.7 Parallelopiped bo x < X < x + 1300 y-1300 < Y < y Z < (17h-1300)/ 1.7 Parallelopiped bp x < X < x + 1400 y-1400 < Y < y Z < (17h-1400)/ 1.7 Parallelopiped bq x < X < x + 1500 y-1500 < Y < y Z < (17h-1500)/ 1.7 Parallelopiped br x < X < x + 1600 y-1600 < Y < y Z < (17h-1600)/ 1.7
[0260] Next, the method of calculation of a terrain-based safe region caused by specific terrain able to be used for evasive action taken due to a shot in actual practice grounds, that is, recessed terrain, will be explained in detail.
[0261]
[0262] The following Table 13 shows an example of the preparation of terrain sample data of recessed terrain according to an embodiment of the present invention. In Table 13, recessed terrain is defined by the coordinates of its four corners to calculate a terrain-based safe region. Further, a terrain-based safe region of recessed terrain is determined as shown in the table in accordance with the shot angle β.
TABLE 13 Safe coordinate range Shot angle β Range of X- Range of Y- Range of Z- [°] coordinates coordinates coordinates −90 to 30 x1 < X < x2 y1 < Y < y2 Z < z1 30 to 90 No terrain-based safe region
[0263] That is, the parameters required for calculation of a terrain-based safe region of recessed terrain are the coordinates (x1, y1, z1), (x1, y2, z1), (x2, y1, z1), and (x2, y2, z1) of the four corners of the recessed terrain.
[0264] As shown in Table 13 and
[0265] A terrain-based safe region of recessed terrain is not divided for each shot heading α, but made the same coordinate range for all shot headings.
[0266] For a shot from a high angle of a shot angle of 30° to 90°, it is deemed there is no dead angle from the target side and that there is no terrain-based safe region of recessed terrain.
[0267] In the case of a shot angle β of −90° to 30°, the safe region is made a coordinate range of a parallelopiped comprised of the coordinates of the four corners and Z<z1.
[0268] Next, a method for arranging the calculated terrain sample data on a map of the practice grounds and calculating terrain-based safe regions by coordinate ranges of a 3D reference system of the practice grounds will be explained.
[0269]
[0270] In the coordinate range of the practice grounds, the terrain sample data of the projecting terrain and recessed terrain are arranged on the map matched with the actual terrain.
[0271]
[0272]
[0273] The following Table 14 to Table 23 show the results of calculation of the coordinate ranges of the UTM coordinate system of terrain-based safe regions in the case of arranging the terrain sample data as shown in
[0274] The following Table 13 shows the terrain-based safe regions in the case of arranging the terrain sample data on an imaginary map of the practice grounds as shown in TABLE 14 Terrain-based safe region Shot heading α [°] Shot angle β [°] A 0 to 90 −90 to 30 B 30 to 60 C 90 to 180 −90 to 30 D 30 to 60 E 180 to 270 −90 to 30 F 30 to 60 G 270 to 360 −90 to 30 H 30 to 60
[0275] The following Table 15 shows the range of the coordinates of terrain-based safe regions:
TABLE 15 Terrain-based safe region Safe coordinate range A Parallelopiped i, j, k, l, q B Parallelopiped t C Parallelopiped m, n, o, p, q D Parallelopiped u E Parallelopiped a, b, c, d, q F Parallelopiped r G Parallelopiped e, f, g, h, q H Parallelopiped s
[0276]
TABLE 16 Terrain-based safe region A (OR range of parallelopipeds l, j, k, l, q) Range of Range of X- Range of Y- Z-coordi- Parallelopiped coordinates coordinates nates Parallelopiped i 31200 < X < 31300 50100 < Y < 50200 Z < 241 Parallelopiped j 31100 < X < 31200 50000 < Y < 50100 Z < 182 Parallelopiped k 31000 < X < 31100 49900 < Y < 50000 Z < 124 Parallelopiped l 30900 < X < 31000 49800 < Y < 49900 Z < 65 Parallelopiped q 30400 < X < 30500 50200 < Y < 50400 Z < 0
[0277]
TABLE 17 Terrain-based safe region B (parallelopiped t) Range of X- Range of Y- Range of Z- Parallelopiped coordinates coordinates coordinates Parallelopiped t 31200 < X < 31300 50100 < Y < 50200 Z < 133
[0278]
TABLE 18 Terrain-based safe region C (OR range of parallelopipeds m, n, o, p, q) Range of Range of X- Range of Y- Z-coordi- Parallelopiped coordinates coordinates nates Parallelopiped m 31200 < X < 31300 50200 < Y < 50300 Z < 241 Parallelopiped n 31100 < X < 31200 50300 < Y < 50400 Z < 182 Parallelopiped o 31000 < X < 31100 50400 < Y < 50500 Z < 124 Parallelopiped p 30900 < X < 31000 50500 < Y < 50600 Z < 65 Parallelopiped q 30400 < X < 30500 50200 < Y < 50400 Z < 0
[0279]
TABLE 19 Terrain-based safe region D (parallelopiped u) Range of X- Range of Y- Range of Z Parallelopiped coordinates coordinates coordinates Parallelopiped t 31200 < X < 31300 50200 < Y < 50300 Z < 133
[0280]
TABLE 20 Terrain-based safe region E (OR range of parallelopipeds a, b, c, d, q) Range of Range of X- Range of Y- Z-coordi- Parallelopiped coordinates coordinates nates Parallelopiped a 31300 < X < 31400 50200 < Y < 50300 Z < 241 Parallelopiped b 31400 < X < 31500 50300 < Y < 50400 Z < 182 Parallelopiped c 31500 < x < 31600 50400 < Y < 50500 Z < 124 Parallelopiped d 31600 < X < 31700 50500 < Y < 50600 Z < 65 Parallelopiped q 30400 < X < 30500 50200 < Y < 50400 Z < 0
[0281]
TABLE 21 Terrain-based safe region F (parallelopiped r) Range of X- Range of Y- Range of Z- Parallelopiped coordinates coordinates coordinates Parallelopiped t 31300 < X < 3140 50200 < Y < 50300 Z < 133 0
[0282]
TABLE 22 Terrain-based safe region G (OR range of parallelopiped e, f, g, h, q) Range of X- Range of Y- Range of Z- Parallelopiped coordinates coordinates coordinates Parallelopiped e 31300 < X < 31400 50100 < Y < 50200 Z < 241 Parallelopiped f 31400 < X < 31500 50000 < Y < 50100 Z < 182 Parallelopiped g 31500 < X < 31600 49900 < Y < 50000 Z < 124 Parallelopiped h 31600 < X < 31700 49800 < Y < 49900 Z < 65 Parallelopiped q 30400 < X < 30500 50200 < Y < 50400 Z < 0
[0283]
TABLE 23 Terrain-based safe region H (parallelopiped s) Range of X- Range of Y- Range of Z- Parallelopiped coordinates coordinates coordinates Parallelopiped t 31300 < X < 31400 50100 < Y < 50200 Z < 133
[0284] As shown in Table 15, the terrain-based safe region A is the OR range of the parallelopipeds “j”, “j”, “k”, “l”, and “q”, the terrain-based safe region B is the parallelopiped “t”, and the terrain-based safe region C is the OR range of the parallelopipeds “m”, “n”, “o”, “p”, and “q”.
[0285] The coordinate ranges of the parallelopipeds of the terrain-based safe regions A to F are shown in Table 16 to Table 23.
[0286] The coordinate ranges of the UTM coordinate system of the terrain-based safe regions of the practice grounds calculated are written in the terrain recorder
[0287] (Embodiment Corresponding to Claim 9)
[0288] Next, an example of the simulation of a shot by the shooting side apparatus
[0289] In this embodiment, a shot is simulated when receiving a shot trigger signal of a weapon by providing a shot simulator
[0290] In
[0291] When the shot munition type is a missile, for example, a yellow smoke generator emits smoke, when the shot munition type is rounds of a machine gun, a blue smoke generator emits smoke, and when the shot munition type is a rocket, a red smoke generator emits smoke.
[0292] When three colors are not enough for the colors of the smoke generators, it is also possible to make the blue smoke generator and the red smoke generator simultaneously emit smoke so as to be able to handle more than three shot munition types.
[0293] (Embodiment Corresponding to Claim 10)
[0294] Next, an embodiment for simulating damage when the results of judgment of the shot effect are in will be explained.
[0295] In this embodiment, the target side apparatus
[0296] The greater the extent of the damage, that is, from small damage to medium damage and to large damage, the more the smoke is increased to simulate the damage.
[0297] For example, when the result of the judgment of the shot effect is small damage, one smoke generator is used to emit smoke, when medium damage, two smoke generators are used to emit smoke, and when large damage, three smoke generators are used to emit smoke.
[0298] When the result of the judgment of the shot effect is a near miss, for example, only the sound of the speaker is used to simulate the shot.
[0299] It is also possible to provide a plurality of smoke generators of different amounts of smoke and select the smoke generators to emit smoke from-in accordance with the results of judgment of the shot effect so as to control the amount of smoke.
[0300] (Embodiment Corresponding to Claim 11)
[0301] In this embodiment, the target side apparatus
[0302] The following Table 24 shows a data table of an evasive action recorder according to this embodiment.
[0303] Further, Table 25 shows the read locations of the data recorded in the evasive action recorder.
TABLE 24 Shoot- Hit risk range for each extent Safe Target ing of damage Heading shot at region Judg- Elapsed side side Shot Near Small Medium Large Shot caused ment of Time time posi- posi- munition miss damage damage damage head- Shot by ter- shot [s] [s] tion tion position [m] [m] [m] [m] ing α angle β rain effect Gt1[s] 0 (Xr1, (Xs, (Xp1, r1 r2 r3 r4 α1 β1 Y/N Miss/ (shoot- Yr1, Ys, Yp1, Hit ing Zr1) Zs) Zp1) time) Gt2[s] (Xr2, (Xp2, α2 β2 Y/N Miss/ Yr2, Yp2, Hit Zr2) Zp2) Gt3[s] (Xr3, (Xp3, α3 β3 Y/N Miss/ Yr3, Yp3, Hit Zr3) Zp3) Gt4[s] (Xr4, (Xp4, α4 β4 Y/N Miss/ Yr4, Yp4, Hit Zr4) Zp4) Gt5[s] (Xr5, (Xp5, α5 β5 Y/N Miss/ Yr5, Yp5, Hit Zr5) Zp5) . . . . . . . . . . . . . . . . . . . . . . . . Gtn[s] Te (Xrn, (Xpn, αn βn Y/N Miss/ Yrn, Ypn, Hit Zrn) Zpn)
[0304]
TABLE 25 Read locations of data recorded in evasive action recorder Data Read location Time GPS time obtained from GPS receiver of target side apparatus Elapsed time Difference from shot time calculated from GPS time obtained from GPS receiver of target side apparatus Target side position GPS receiver of target side apparatus Shooting side position Position information of shooter obtained from shot laser signal Shot munition position Shot munition position recorded in RAM of controller of target side apparatus Hit risk range Near miss r1 Read from munition type parameter re- for each Small corder of target side apparatus in ac- extent of damage r2 cordance with shot weapon information damage Medium and shot munition type information of shot damage r3 laser signal Large damage r4 Shot heading XY plane α Heading by which shooting side shot cal- XZ plane β culated by controller of target side apparatus Terrain-based safe region Recorded as “Y” (yes) when comparison of coordinate range of UTM coordinate system of terrain-based safe regions writ- ten in terrain recorder and position of tar- get side shows that position of target side is in a terrain-based safe region, while “N” (no) when not Judgment of shot effect Result of judgment of shot effect recorded as one of near miss, small damage, medium damage, and large damage
[0305] In Table 24, the first time recorded in the evasive action recorder
[0306] The shot time obtained from the shot laser signal and the time information recorded in the RAM
[0307] After this, as the time, the GPS time obtained from the GPS receiver of the target side apparatus
[0308] For the predetermined elapsed time after a shot, the difference from the shot time is calculated and recorded from the GPS time obtained from the GPS receiver of the target side apparatus
[0309] For the position of the target side apparatus
[0310] For the position of the shooting side apparatus
[0311] For the position of the shot munition, the position of the shot munition for every elapse of time written in the RAM
[0312] For the hit risk range for each extent of damage, the plurality of ranges of tracking of a target by a shot munition set for the different states of damage are read and recorded by the munition type parameter recorder
[0313] For the heading shot at, the results of calculation by the shooter position information included in the shot laser signal and the position information of the target side apparatus
[0314] Whether a position is included in a terrain-based safe region is determined by comparing the coordinate ranges of the UTM coordinate system of terrain-based safe regions written in the terrain recorder
[0315] For the judgment of the shot effect, the result of the judgment of the shot effect in the above embodiment is recorded as either near miss, small damage, medium damage, large damage, or miss.
[0316] (Embodiment Corresponding to Claim 12)
[0317]
[0318]
[0319] (Embodiment Corresponding to Claims 13 and 14)
[0320]
[0321] When the shot weapon is a large weapon, the routine proceeds to step
[0322] When the shot weapon is a small weapon, at step
[0323] Next, at step
[0324] The damage distances D1 to D4 are set in the relationship of D1>D2>D3>D4. D4 defines the difference in distance between the shooting side and the target side resulting in large damage or death, D3 the difference in distance between the shooting side and the target side resulting in medium damage or serious injury, D2 the difference in distance between the shooting side and the target side resulting in small damage or light injury, and D1 the difference in distance between the shooting side and the target side resulting in a near miss.
[0325] For example, the case of D4>D is deemed to result in large damage or death, the case of D3>D>D4 medium damage or serious injury, the case of D2>D>D3 small damage or light injury, the case of D1>D>D21 a near miss, and the case of D>D1 a miss.
[0326] Normally, the effective range of a small weapon is shorter than the effective range of a laser, so it is possible to set D1 so as to define the effective range of a shot munition without regard as to the effective range of the laser.
[0327] Further, it is possible to set D4 to about 10 m and deem the case of D4>D as a miss so as to control the practice and ensure safety when the shooting side and the target side are too close.
[0328] At this time, when for example, D4>D, it is deemed that the shot has missed, when D3>D>D4, it is deemed that the target has suffered large damage or died, when D2>D>D3, it is deemed that the target has suffered medium damage or has been severely injured, and when D1>D>D2, it is deemed that the target has suffered small damage or has been lightly injured.
[0329] In target practice indoors, it is possible to set D1 to D4 finer so as to enable judgment of the extent of damage corresponding to the difference in distance D between the shooting side and target side more precisely.
[0330] (Embodiment Corresponding to Claim 15)
[0331]
[0332] The heading detector
[0333] The detected heading is sent to the controller
[0334] The controller
[0335]
[0336] Next, at step
[0337] Next, at step
[0338] when 0°<ω<90° or −
[0339] When 90°<ω<180° or −270°<ω<−180°, the damaged part is deemed to be the right rear.
[0340] When 180°<ω<270° or −180°<ω<−90°, the damaged part is deemed to be the left rear.
[0341] When 270°<ω<360° or −90°<ω<0°, the damaged part is deemed to be the left front.
[0342] (Embodiment Corresponding to Claim 16)
[0343] In this embodiment, a plurality of damage simulators including smoke generators, vibrators, speakers, etc. for simulating damage when results of judgment of the shot effect are in are provided at different parts of the target side apparatus
[0344]
[0345] The damaged part is simulated as follows:
[0346] When the damaged part is judged to be the right front, a simulation trigger signal is sent to the damage simulator
[0347] When the damaged part is judged to be the right rear, a simulation trigger signal is sent to the damage simulator
[0348] When the damaged part is judged to be the left rear, a simulation trigger signal is sent to the damage simulator
[0349] When the damaged part is judged to be the left front, a simulation trigger signal is sent to the damage simulator
[0350]
[0351] A damaged part is simulated as follows:
[0352] When the damaged part is judged to be the right front or the left front, a simulation trigger signal is sent to the damage simulator
[0353] When the damaged part is judged to be the right rear or the left rear, a simulation trigger signal is sent to the damage simulator
[0354] (Embodiment Corresponding to Claim 17)
[0355]
[0356] As will be understood from the above explanation, the target practice system according to the present invention judges the shot effect including the difference in distance between the shooting side and target side, the shooting side munition type, the shooting side weapon type, the evasive action of the target side, and the effects of evasive action of the target side utilizing terrain such as hiding behind a hill, so realistic, efficient practice becomes possible.