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7619534 Method and apparatus for detection of hazardous or potentially hazardous conditions  
A fire alarm system includes a fire alarm control panel (FACP) and an addressable signaling line circuit (SLC) operably coupled to the FACP for communicating with addressable components, including...
7605687 Ambient condition detector with variable pitch alarm  
An ambient condition detector outputs an alarm comprising a tonal pattern comprising at least two distinctly different pitch tones in one embodiment of the invention. Another embodiment comprises a...
7567182 Acoustic fire sensing system  
The acoustic sound of water flowing to/from activated sprinkler heads is used to identify fire location in a region(s). Acoustic transducers, such as microphones, can be located in the vicinity of...
7541938 Optical flame detection system and method  
A long range optical sensor and system for detecting the flame of forest fires or other fires while rejecting false alarms due to solar radiation is described. The sensor utilizes a collector optic...
7528732 Fire alarm device and method  
A fire alarm device and method capable of informing people with visual and hearing difficulties of occurrence of fire. A fire detection means ( 1 ) detecting the occurrence of fire is connected to...
7528700 Integrated fire exit alert system  
A fire exit alert system, preferably integrated into an exit device or automatic fire exit door closer, uses sound and light to signal the location of a fire exit in darkness and smoke-obscured...
7522037 Method for forming and transmitting signals  
The present invention relates to automatic fire alarm signaling, and more particularly to the activation of fire alarm signaling by an analysis of a monitored fire factor (smoke level, temperature,...
7492269 Self diagonostic flame ignitor  
Techniques for monitoring operation of a flame ignitor are provided. In one embodiment, multiple inputs are received. The inputs are received from at least one of a first group of inputs and a...
7474226 Smoke detector calibration  
A method for calibrating a smoke detector includes adjusting the sensitivity of the smoke detector to get a consistent predetermined response over the expected operating range. The sensitivity is...
7463159 Fire detector  
The fire detector comprises an insertable detector assembly which includes a sensor arrangement, an electronic evaluation system and a housing which surrounds the sensor arrangement and has...
7417530 Sleep safety alarm  
A blanket with integral vibrating mechanisms for awakening a sleeper during an emergency. A control box receives information and based on an array of user settings, the control box will either...
7408477 Fire alarm pull station with audio deterrent  
A fire alarm pull station includes a cover which must be opened to reach a fire alarm actuating handle, and an audio pull station alarm triggered by opening the cover. Once triggered, the pull...
7365648 Fire alarm  
A fire alarm for an installation via a housing that is flush with the ceiling, having at least one light source arranged in the housing and at least one light receiver arranged in the housing, as...
7337156 Method for detecting and combating forest and surface fires  
A method for the detection and combating of forest and surface fires includes the steps of observing and detecting fires using an infrared camera on board an observation aircraft; georeferencing...
7327269 Flame sensor for a burner  
A flame sensor circuit is used to sense the presence or absence of a flame in a burner. A first sensor generates a first intensity signal which is proportional to the light intensity of the flame...
7321301 Wireless children's safety light in a security system  
A safety light is activated by a wireless signal from a control panel in a home security system is response to detection of a fire by the system. The safety light alerts rescuers of rooms in a home...
7286704 Imaging fire detector  
An imaging fire detector is used to detect a fire from a recorded image sequence. Either a video camera or an infrared camera is used as an imaging device. Characterizing parameters of a fire are...
7242310 Control techniques for shut-off sensors in fuel-fired heating appliances  
In a flammable vapor sensor-based shut-off system of a fuel-fired water heater the sensor resistance output signal degradation caused by aging of the sensor is automatically compensated for using...
7231808 Method and apparatus for measuring oxygen content  
A method and apparatus for measuring the oxygen content in a closed target space, particularly for monitoring inertization levels in an inert gas device for fire prevention and/or fire...
7221260 Multi-sensor fire detectors with audio sensors and systems thereof  
An ambient condition detector incorporates an audio transducer for discrimination between alarm and non-alarm conditions. The transducer can provide occupancy information. In addition, a monitoring...
7202794 Flame detection system  
A flame detection system includes a plurality of sensors for generating a plurality of respective sensor signals. The plurality of sensors includes a set of discrete optical radiation sensors...
7199724 Method and apparatus to aide in emergency egress  
A method and apparatus are provided to aide in emergency egress of a structure. More particularly, egress indicators are co-located with hazard sensors. During detection of a hazard condition,...
7199721 Alarm shut off system  
The Alarm Shut Off System is an invention that will detect when there is smoke and shut off the supply of gas or electric power from the appliance to prevent the smoke from growing into a fire....
7180406 Onboard fire alert system  
The method is for warning for alcohol fueled fires in vehicles such as racing vehicles. The method comprises providing a vehicle ( 44 ) with an engine ( 46 ) fueled by alcohol. Sensors ( 20, 22, 24...
7170396 Addressable smart speaker  
An addressable smart speaker for use in a fire alarm system connects to and receives messages over a network, has plural taps for selecting audio power. In response to a command, a selector in an...
7155029 Method and apparatus of detecting fire by flame imaging  
An apparatus and method for performing first and second imaging processes contemporaneously, in particular where one of the processes is detecting fires based on images of the flames. The apparatus...
7154388 Vehicle compartment smoke and fire indication system and method for use  
A mobile platform fire detection system includes a plurality of smoke detectors locatable in a compartment of a mobile platform. Heat sensors are also positioned in the compartment. At least one...
7145466 National security warning system integrated with building fire alarm notification system  
A fire alarm system includes a fire alarm notification appliance, and a warning detector which detects a warning alert from a military agency. The fire alarm notification appliance provides...
7138912 Movable barrier operations method and apparatus  
Movement of a movable barrier ( 10 ) such as, for example, a vertically-dropping fire door, can be controlled in an informed manner and with greater flexibility regarding the manner of movement...
7127070 Loudspeaker broadcasting system and loudspeaker broadcasting apparatus  
To provide a loudspeaker broadcasting system and a loudspeaker broadcasting apparatus which can perform a loudspeaker broadcasting of appropriate contents at each block without reducing sound...
7123154 Remote sensing and signaling of the presence of wildfire  
Detecting a wildfire and an electrical arc, which are characterized by emission of ultraviolet (UV) radiation at a given wavelength, are described using a light sensor having a pulse output...
7119697 Hydrogen fire detection system & method  
To detect flames burning carbon-free hydrogen-bearing fuels, first, second, and third sensors sense first, second and third regions of an infrared water emission band, and generate first, second,...
7119678 Wireless light sensor input to a security system  
The present invention relates to a system and method for the wireless light sensor input to a security system, wherein the light sensed by the light sensor is used to determine the activation and...
7098796 Method and system for detecting fire in a predetermined area  
A method and system for detecting early fires in a predetermined area includes capturing a plurality of images of the predetermined area during an interval for generating a plurality of difference...
7091869 Optoacoustic measuring arrangement and use thereof  
The measuring arrangement contains a measuring cell and a reference cell, respectively, and microphones assigned to these cells, to which microphones an electronic evaluation circuit is connected...
7064660 System and method for inferring an electronic rendering of an environment  
A system and method for inferring an electronic rendering ( 170 ) of an environment ( 110 ) comprises a plurality of devices ( 341 and 345 ), and a processing device. Each wireless device is...
7046154 Flame-monitoring device  
The invention relates to a flame-monitoring device in which an a.c. input voltage (U 1 ) is limited to a voltage limit (U 2 ) by means of a voltage limiter ( 4 ). Said voltage limit (U 2 ) is...
7030766 Ambient condition detector with multi-function test  
A device with a multi-function test feature for assessing or directing multiple sensor functions is provided for monitoring and interrogating air flow through Heating/Ventilation/Air-conditioning...
7009521 Power supply and interconnect detector system  
A contactless ambient condition detection system includes at least one base connectable to a power and signal transmitting cable and a compatible detector. The detector removably engages the base....
7008218 Combustion emission estimation with flame sensing system  
There is described a method and apparatus for controlling the combustion by-product formation rate in at least one burner of a fossil fuel fired power plant. The burner has an associated flame...
7002478 Smoke and flame detection  
A method of operating a computer for smoke and flame detection comprising the steps of: receiving digitised images of the region to be monitored; comparing pixels of one of said images with pixels...
6989745 Sensor device for use in surveillance system  
A sensor unit for use in a surveillance system is provided. The sensor unit interfaces with a sensor device to receive sensor data from the sensor device. The sensor unit is configured to generate...
6985080 Flame sense circuit and method with analog output  
An analog flame sense circuit is provided that utilizes the flame rectification method of sensing flame. The circuit uses an AC voltage source and discrete components to provide the sensing of the...
6975235 Temperature warning system for a fireplace  
A temperature warning system for a fireplace includes, for example, an arrangement to sense a temperature of at least one area of the fireplace and a signaling device controlled by the arrangement...
6967582 Detector with ambient photon sensor and other sensors  
A sensor of incident ambient photons is combined, in a detector with one or more sensors responsive to other types of ambient parameters such as gas, humidity, temperature or the like. Outputs from...
6960987 Fire alarm system, fire sensor, fire receiver, and repeater  
Disclosed herein is a fire alarm system for connecting a plurality of fire sensors to sensor lines, and giving an alarm in response to fire information output from the fire sensor in a line unit....
6956485 Fire detection algorithm  
A method and apparatus for the detection of flame by entering (S 1 ) a video signal into an algorithm which processes individual pixels in (S 2 ) a frequency band is determined and used as a filter...
6952169 Cordless/wireless automatic detection and suppression system  
A wireless automatic detection and suppression system for the detection and suppression of a hazard within an environment, the system includes a wireless automatic suppression apparatus, and at...
6914535 Light scattering type smoke sensor  
A light scattering type smoke sensor comprising a holder with openings embedded with light emitting part and light detecting part respectively, which do not protrude into the smoke detection...
6903357 Solid state spark detection  
An apparatus, system, and method for solid state spark detection are disclosed. A semiconducting photodetector has a pair of electrical conductors for carrying an electrical current generated when...
Matches 1 - 50 out of 225 1 2 3 4 5 >