A device for generating information representing a condition of an automatic door includes an accelerometer including at least one internal buffer and a control unit including at least one processor and at least one memory. The accelerometer is configured to obtain and buffer at least one acceleration value representing acceleration of the automatic door. The at least one processor is configured to cause the control unit at least to read and store the obtained at least one acceleration value from the internal buffer of the accelerometer, and generate at least one piece of information representing the condition of the automatic door for communicating the generated at least one piece of information to an external server. A system and a method for generating information representing a condition of an automatic door are also disclosed.

According to one embodiment, a user detection system includes a camera, a boundary detector, a user detector and a controller. The camera is installed in a peripheral region of a door, and captures a running region when opening or closing the door and a region near the door. The boundary detector detects a boundary between a first structure and a second structure in the region near the door based on an image captured by the camera. The user detector detects whether there is a user in the running region based on a result detected by the boundary detector. The controller controls an open/close operation of the door based on a result detected by the user detector.

A modular door drive control system for subjecting electrical drive motors to open-loop control and/or closed-loop control to open and close doors or door leaves in different applications includes at least one motor control unit, and a plurality of peripheral adaptation units for adapting the motor control unit or a plurality of the motor control units to match one of the different applications, where the motor control unit or a plurality of the motor control units are selectively connectable to each of the peripheral adaptation units to transmit electrical power for the drive motor, which is respectively connected to the motor control unit, via a common intermediate circuit such that door drive controllers for different applications can be realized with the aid of a modular door drive control system of this kind, without a relatively high level of expenditure on adaptation.

An elevator system includes an elevator car that is movable in an elevator shaft. The elevator car has a car door, a car door drive for closing and/or opening the car door, and a car door control unit directly controlling the car door drive. A shaft door is provided on each door opening of the elevator shaft. Each shaft door has a shaft door drive for closing and/or opening the shaft door and a shaft door control unit directly controlling the shaft door drive. The car door control unit and the shaft door control unit are connected, preferably wirelessly, via a communication connection to open and/or close the shaft door and the car door synchronously.

A landing-door switch circuit according to the present disclosure includes an upper-car safety circuit, an upper-car auxiliary circuit, a lower-car safety circuit, and a lower-car auxiliary circuit. The upper-car safety circuit and the lower-car safety circuit connect excitation coils of switching devices of a power supply for driving an upper car and a lower car, respectively, and a power supply, and include main circuits in which landing-door switches are connected in series, and first connection units and third connection units branched from the main circuits. The upper-car auxiliary circuit and the lower-car auxiliary circuit include a second connection unit and a fourth connection unit on the lower car and the upper car, respectively, to bypass the landing-door switches.

An elevator system includes: a car traveling in an elevator shaft; a car door arranged on the car; at least one shaft door arranged on a door opening of the elevator shaft; a shaft door locking device, in particular comprising a shaft door drive, for unlocking and/or closing and/or opening the shaft door; a shaft door sensor arranged on the shaft door and a car door signal transmitter arranged on the car door; and a shaft door control unit operatively connected to the shaft door sensor, the shaft door control unit directly actuating the shaft door locking device when a car door signal of the car door signal transmitter is received by the shaft door sensor.

A method of updating a stall threshold level of an elevator door to control a door stall occurring during opening or closing of the elevator door includes determining an exceptional motion count of a door based on at least one of a speed and an acceleration of the door, determining whether the door is stalled, based on a determined exceptional motion count of the door and a preset stall threshold level of the door, and re-determining the stall threshold level of the door according to the determination of whether the door is stalled.

A pressurized fluid powered cabin-management system for an elevator system with a cabin and drive system is provided. The cabin-management system is configured to direct operation of the elevator system upon arrival of one of the cabins at a floor, and comprises a floor detector configured to detect when the cabin is located at a floor and to activate a timer. The timer is configured, when triggered, to activate a timing arrangement and to pass pressurized fluid to a control valve being in a first position. The timing arrangement is configured to direct the control valve to assume a second position after a predetermined amount of time. The cabin-management system performs, when pressurized fluid is passed to the control valve in its first position, actions for opening a door, and, after the control valve has assumed its second position, actions for travel of the cabin.

A pressurized fluid powered cabin-management system for an elevator system with a cabin and drive system is provided. The cabin-management system is configured to direct operation of the elevator system upon arrival of one of the cabins at a floor, and comprises a floor detector configured to detect when the cabin is located at a floor and to activate a timer. The timer is configured, when triggered, to activate a timing arrangement and to pass pressurized fluid to a control valve being in a first position. The timing arrangement is configured to direct the control valve to assume a second position after a predetermined amount of time. The cabin-management system performs, when pressurized fluid is passed to the control valve in its first position, actions for opening a door, and, after the control valve has assumed its second position, actions for travel of the cabin.

An elevator door device includes a failure detection vane mounted on a safety shoe, and a failure detection roller to be brought into contact with the failure detection vane to turn on a shoe switch. The failure detection roller is mounted only on an OFF-failure detection floor. In a case where the shoe switch is turned off when a door is fully closed on the OFF-failure detection floor, it is determined that the safety shoe has OFF failure, and in a case where the shoe switch is turned on when the door is fully closed on an ON-failure detection floor, on which the failure detection roller is not mounted, it is determined that the safety shoe has ON failure.