Matches 1 - 23 out of 23


Match Document Document Title
8807284 Elevator with a monitoring system  
An elevator has a control unit, a bus, a first microprocessor and at least a second microprocessor, which microprocessors are associated with a bus junction and which are connected by the bus with...
8463462 Systems and methods for braking system testing  
Systems and methods are provided that may he useful for testing braking systems for use in, for example, an aircraft. A system is disclosed that allows for built in testing. For example, a method...
8365872 Elevator device having the plurality of hoisting machines  
In an elevator device, a car is raised and lowered by a plurality of hoisting machines respectively including hoisting machine brakes. Each of the hoisting machine brakes has a braking force large...
8096387 Fail-safe power control apparatus with controllable change-over switches  
A fail-safe power control apparatus for supplying power between an energy source and the motor of a transport system. The power control apparatus includes a power supply circuit, which has at...
7896135 Fail-safe power control apparatus  
A fail-safe power control apparatus for supplying power between an energy source (4) and the motor (5) of a transport system is provided. The power control apparatus comprises a power supply...
7549513 Control device of elevator for detecting abnormalities in a clock signal  
In an elevator control apparatus, calculations regarding the control of an elevator are performed in a duplexed system including first and second processing portions. A first clock signal from a...
7503432 Elevator control using clock signal  
An elevator control device has: a processing portion for controlling an operation of an elevator based on a clock signal; and a detection portion for comparing the number of edges of the clock...
7500650 Safety circuit for lift doors  
An improved lift system door control or safety circuit utilizes locking devices for the lift shaft doors and lock sensors to monitor the status of the locking devices. The lock sensors are coupled...
7482771 Method for monitoring a drive device for a standstill condition, monitoring system therefore, and drive system therefore  
In a method for monitoring a stationary condition of a drive device, a monitoring device provides the drive device with a temporally varying monitoring signal which, when a sensor device connected...
7438158 Safety monitoring device with instantaneous speed determination for a lift car  
A safety monitoring device is provided for a lift car which can be moved in a lift shaft by a traction drive via a lift control system and whose instantaneous position can be registered by a...
6173814 Electronic safety system for elevators having a dual redundant safety bus  
In accordance with a preferred embodiment of the present invention, an electronic safety system for elevators for preventing unsafe elevator operation has a central controller which monitors a...
5884729 Apparatus and method for controlling a plurality of elevator cars  
An apparatus and method for controlling a plurality of elevator groups each of which has at least a pair of elevator cars. The apparatus includes a master car controller for collecting data from...
5638295 Transfer switch system with subnetwork  
A transfer switch system includes a controller which sends separately timed restart signals over a communications network to an addressable relay associated with each load in order to sequentially...
5387769 Local area network between an elevator system building controller, group controller and car controller, using redundant communication links  
A LAN elevator network includes (a) a pair of redundant car buses for exchanging signals with car control system elements, (b) a pair of redundant group buses for exchanging signals with the...
5360952 Local area network eleveator communications network  
A LAN elevator network includes (a) a pair of redundant car buses for exchanging signals with car control system elements, (b) a pair of redundant group buses for exchanging signals with the...
5298696 Elevator car assignment using a plurality of calculations  
An elevator group management system for managing a plurality of elevators is disclosed wherein the system comprises a plurality of control devices for executing overall assignment processes of the...
4719993 Control apparatus for elevator  
In a case where peculiar control information which differs depending upon buildings is revised, a first memory for storing the revised information and a second memory for storing the original...
4567560 Multiprocessor supervisory control for an elevator system  
An elevator system, and method of monitoring same, which includes a plurality of elevator cars under the group supervisory control of at least first and second processors, which all share a common...
4473135 Apparatus for controlling an elevator  
An apparatus for controlling an elevator, which comprises a managing first electronic computer for managing the service of the start and stop of an elevator cage and a controlling second...
4350225 Elevator control system  
A control logic for an elevator servicing a plurality of floors of a building comprises two microcomputers. The two microcomputers are provided with abnormal state detectors of their own. When the...
4345670 Elevator control system  
An elevator control system comprises a control unit for controlling at least one elevator in accordance with a first group of programs and a second group of programs to impart a plurality of...
4326606 Apparatus for controlling rescue operation of an elevator  
The operation control section of an elevator system is constituted of two computers one of which shares the processing function with the other. One of the computers has a means for detecting an...
4308935 Autonomous elevator cab operation  
An elevator includes a microprocessor-based cab controller mounted on the elevator car to monitor calls for service by passengers in the car, such as are registered on car call buttons requesting...

Matches 1 - 23 out of 23