A door safety system (3) for a door (2), having a safety component (10) arranged on a movable door element (4, 4a, 4b) of the door (2) and a supply component (11) arranged on a stationary door frame (5) of the door (2) for supplying energy to the safety component (10). The safety component (10) has an electric energy store (12) which is designed to autonomously supply electric energy to the safety component (10) when the door (2) is open, and the safety component (10) and the supply component (11) are designed to electrically charge the electric energy store (12) of the safety component (10) when the door (2) is closed.

There is disclosed an automatic door installation 10 comprising: a door opening 16; and an optical door sensor comprising: a plurality of transmitters 30 arranged in a transmitter array 22, each transmitter 30 being configured to transmit an optical beam across the door opening along a respective beam path; a plurality of receivers 32 arranged in a receiver array 24, each receiver 32 being configured to generate a receiver output signal based on an intensity of light received. The plurality of receivers 32 are arranged in at least one set of receivers, the receivers of the or each set being linked so that the respective sensor output signals are combined into a compound signal for the respective set.

A door control system is provided. The control system includes a controller configured to control a door via a motor. The motor is powered by a battery and bypasses the controller via relays and/or switches when power to the controller is disconnected.

A wireless safety system for a gate opening apparatus includes a main housing, a transmitter unit, a reflection device mounted at a distance from the transmitter unit and optically communicated with the transmitter unit, a receiver unit supported in the main housing and arranged to receive optical signal reflected from the reflection device, and an positioning device. The positioning device includes a light emitter mounted in the main housing at a position adjacent to the transmitter unit. The light emitter is arranged to emit positioning light beam at a same direction as that of the optical signal emitted from the transmitter unit and is arranged to produce a colored indication on a targeted object as a proper position of the reflection device.

An inquiry processing device includes: an automatic door information recorder that records information including past inquiry information from a customer regarding an automatic door, an operation situation, and quality information; a countermeasure presenter that presents recommended countermeasure information corresponding to a new inquiry regarding the automatic door by an extraction algorithm; a feedback information receiver that receives feedback information on whether or not a defect of the automatic door has been removed by taking measures on the basis of the recommended countermeasure information; a learner that updates the extraction algorithm of the countermeasure presenter on the basis of the feedback information; and a countermeasure presentation determiner that causes the countermeasure presenter to present new recommended countermeasure information by the extraction algorithm updated by the learner, when it is determined that the defect of the automatic door has not been removed.

A door control system is provided. The control system includes a controller configured to control a door via a motor. The motor is powered by a battery and bypasses the controller via relays and/or switches when power to the controller is disconnected.

There is disclosed an automatic door installation 10 comprising: a door opening 16; and an optical door sensor comprising: a plurality of transmitters 30 arranged in a transmitter array 22, each transmitter 30 being configured to transmit an optical beam across the door opening along a respective beam path; a plurality of receivers 32 arranged in a receiver array 24, each receiver 32 being configured to generate a receiver output signal based on an intensity of light received. The plurality of receivers 32 are arranged in at least one set of receivers, the receivers of the or each set being linked so that the respective sensor output signals are combined into a compound signal for the respective set.

An inquiry processing device includes: an automatic door information recorder that records information including past inquiry information from a customer regarding an automatic door, an operation situation, and quality information; a countermeasure presenter that presents recommended countermeasure information corresponding to a new inquiry regarding the automatic door by an extraction algorithm; a feedback information receiver that receives feedback information on whether or not a defect of the automatic door has been removed by taking measures on the basis of the recommended countermeasure information; a learner that updates the extraction algorithm of the countermeasure presenter on the basis of the feedback information; and a countermeasure presentation determiner that causes the countermeasure presenter to present new recommended countermeasure information by the extraction algorithm updated by the learner, when it is determined that the defect of the automatic door has not been removed.

Proposed is a safety installation for industrial doors that are mounted movably between two guide rails, having at least one optical sensor system for recognizing objects, wherein the optical sensor system is mounted in at least one housing able to be fastened in each case to the guide rails. In order to be able to impose lower mounting requirements while keeping at least the same level of safety, the housing and/or at least one of the housings has an acceleration sensor for measuring a vibration and for supplying vibration data from which an evaluation unit evaluates whether the door has left the guide.