Controlling an apparatus may include detecting a fault in the apparatus, such that a controller of the apparatus exits a normal operation state for controlling the apparatus and enters a faulted state based on the detected fault, operation of the apparatus is stopped based on the controller entering the faulted state, and the detected fault is recorded in a fault memory or a fault recorder of the controller. The controlling may include receiving a remote fault clearing command subsequent to detecting the fault, and clearing the detected fault in response to the remote fault clearing command, such that the controller exits the faulted state and enters the normal operation state, and operation of the apparatus is enabled based on the controller entering the normal operation state. Clearing the detected fault may include deleting the detected fault from the fault memory or fault recorder.

A method and system for providing power to an elevator hoist motor is disclosed. An isolated bi-directional dc/dc converter is coupled between a power converter and a power inverter. A battery is coupled to the isolated bi-directional dc/dc converter. A processor is configured to sense power levels and couple the battery to an elevator hoist motor via the isolated bi-directional dc/dc converter depending on the voltage of the main power supply. The isolated bi-directional dc/dc converter is also configured to provide power to charge the battery.

Provided is an elevator system which can easily supply power to an elevator. The elevator system includes a coordinating device configured to command an autonomous mobile body which moves inside a building provided with an elevator to supply power to the elevator in a case where the coordinating device determines that a supply of power from the autonomous mobile body to the elevator is necessary. According to the elevator system, the autonomous mobile body supplies power to the elevator when the supply of power to the elevator is necessary. Therefore, power can be easily supplied to the elevator.

An emergency operation controller for an elevator is connected to other emergency operation controllers of their respective elevators through network, and each controller constitutes a node in the network. The controller generates and transmits an emergency condition detection message to other controllers in the network which constitute adjacent nodes to the controller when the controller detects an emergency condition, and receives an emergency condition detection message from other controllers which constitute adjacent nodes to the controller in the network when other controllers detect an emergency condition. The emergency condition detection message includes a propagation count. The propagation count is configured to be decremented by one, each time one controller transmits the emergency condition detection message to other controllers which constitute next adjacent nodes. The emergency condition detection message is continuously transmitted until the propagation count reaches to zero.

There is provided an elevator control device that can recognize that a car is within a door openable range even when a landing device has failed. The elevator control device includes a control unit configured to, when the landing device of the elevator has failed, position the car within the door openable range based on a signal from another device that detects a position of the car of the elevator. With this configuration, even when the landing device has failed, it is possible to recognize that the car is within the door openable range based on the signal from the other device.

A device for cage jamming buffer of large-tonnage hoisting system of ultra-deep shaft is provided. End cage jamming buffer mechanisms are added at both ends of an automatic wire rope tension balancing mechanism, wherein the end cage jamming buffer mechanisms include an end buffer module and an end fixing module, and the end buffer module and the end fixing module are respectively mounted on shafts of the automatic wire rope tension balancing mechanisms at two ends. The end buffer module mainly consists of a buffer bearing pedestal, a limit block, a buffer block, and a stop block sequentially mounted on the shaft of the automatic wire rope tension balancing mechanism at one end. The end fixing module mainly consists of a fixing bearing pedestal and a fixing block mounted on the shaft, wherein the fixing bearing pedestal is connected to a transmission gear by an adjusting bolt, and the fixing block is located between the transmission gear and the fixing bolt.

The method according to the invention is a method for safeguarding the car of an elevator, which is provided to form regular unlocking zones in the region around the envisaged stopping points at the stories, against unintended movement. The method monitors the speed of the car, the height position of the car in the elevator shaft and the status of the locking of the car door, and identifies possible stopping of the car, the height position of the car outside a regular unlocking zone, and a possibly unlocked state of the car door. A first sub-method of the method forms a temporary unlocking zone when the car stops outside a regular unlocking zone with the car door unlocked, and it assigns the temporary unlocking zone an upper and a lower boundary above and below the position where the car stops.

A method to communicate with a passenger in a car within a transportation system includes receiving an alarm signal from the car, and initiating a text communication session via a communication system associated with the car in response to the alarm signal.

An emergency elevator includes a door frame installed on upper, left and right sides of an entrance of an elevator platform, an elevator car configured to vertically move along an elevator passage and provided with a pair of elevator doors, a pair of platform doors installed in the door frame, a lower frame installed on a lower side of the entrance of the elevator platform and configured to slidably support the platform doors, an upper door rim installed on an upper side of the platform doors, a side door rim vertically installed at a lateral end of the platform doors, an oxygen supply device configured to supply oxygen to a patient in the elevator car, an emergency ventilation device configured to supply a purified air into the elevator car, and a filter device provided in the blowing duct so as to remove harmful substances introduced into the elevator car.

There is provided an ascension aid for a wind turbine comprising a cabin, a catch unit which co-operates with a securing cable as a securing means and a testing unit for testing the functionality of the catch unit. The testing unit has a base plate, a closure counterpart holder, a closing member and an actuating element coupled to the closing member. By actuation of the actuating element the closing member and the closure counterpart holder clamp the securing cable and the closing member and the closure counterpart holder move upwardly along the base plate. Upon release or de-activation of the actuating element the closing member releases the securing cable and the catch unit trips.