A system is provided for automatically closing a server-rack door. A microphone acquires sound data and an acceleration sensor acquires acceleration data. A controller determines at least one time when a volume of the sound data exceeds a threshold. The controller identifies at least one waveform from the acceleration data which matches (i) an opening waveform or (ii) a closing waveform. The controller checks, for each given waveform from among the at least one waveform, if the at least one time is within a time range of the given waveform and, if so, determine that the user is opening or closing the server-rack door by identifying the given waveform as matching the opening or closing waveform. The controller provides a notification of an open status of the server-rack door based on numbers of opening and closing waveforms. The controller automatically closes the server-rack door, responsive to the notification.

A door system comprises a door frame adapted to be mounted within an opening, a door pivotally attached to the door frame, an AC/DC converter operably associated with the door frame, a DC electric device mounted to the door, at least one sensor mounted to the door frame or the door, and a power management controller configured to receive an input from the at least one sensor and send a command to the DC electric device. The AC/DC converter is configured to be electrically connected to an AC power unit disposed outside the door system. The DC electric device is electrically connected to the AC/DC converter.

The invention relates to a device for monitoring the door area of an at least partially glazed door. The device comprises a transmitter, an image recorder, a control unit, and an evaluation unit. The transmitter is used to emit at least one transmission pulse of electromagnetic radiation. The image recorder comprises a receiver matrix having at least one first receiver block, which has a plurality of first receivers. The first receivers of the first receiver block are designed and arranged in such a way that they receive reflected signal components of the transmission pulse in a second predetermined distance range of an outer region of the door area, the distance range being determined in relation to the door. Each first receiver has a memory unit which is designed to integrate and store the reflected signal components received. The control unit is configured to trigger a transmission pulse of the transmitter and to activate the first receivers of the first receiver block for a predetermined first receiving period after a predetermined first idle period which is longer than a period in which a signal of the transmission pulse reflected by the glazed door reaches the first receivers of the first receiver block. The evaluation unit is configured to read the stored signal components of the respective receiver and to process them into topography image data and to compare the topography image data with stored reference image data for a free door area, or is configured to read the stored signal components of the respective receiver and to determine a distance value on that basis and to compare the respective distance value with a stored reference value for a free door area.

The present invention relates to a switching device comprising at least one (a first) sheet of glazing material having a first major surface and an opposing second major surface, a switch attached to the first major surface of the first sheet of glazing material, and a sensor assembly facing the second major surface of the first sheet of glazing material. The switch comprises a movable portion operatively coupled with the sensor assembly such that upon operation of the switch, the movable portion moves from a first position to a second position and the movement of the movable portion from the first position to the second position is detectable by the sensor assembly. The switching device may be part of a window or door for a building or a vehicle.

A method for operating a building closure is disclosed. The building closure may be in the shape of a sectional door or a garage door. The position of the building closure and a motor current of a drive device is monitored by a control apparatus. When the building closure stands still, an electrical drive device arrests the building enclosure by providing an electrically conducting connection between winding of the drive device to ground. The position detection device continues to monitor a signal change such that in response to the signal change, the arresting is suspended and the electrical drive device is at least partially energized.

In order to notify a user of a vehicle of a sensor position in an easily understandable manner to easily open and close a vehicle door by an operation performed by the user of the vehicle, a vehicle door opening/closing device includes: a road surface projection unit configured to project a display representing a position at which shape identification is performed, on a road surface around a vehicle; a shape identification unit configured to perform identification of a shape of an object in a predetermined road surface range including the display projected by the road surface projection unit; and a control unit configured to drive opening or closing of a vehicle door when the shape that is identified by the shape identification unit for the object in the predetermined road surface range represents a shape of a foot portion of a person.

A method for controlling door motions of a controllable door of a motor vehicle, wherein a control device and a sensor arrangement are assigned to the door, and the door includes a controllable motion influencing device. A motion of a door wing of the door can be controlled and influenced by the motion influencing device to alternate between a closed position and an open position. The sensor arrangement includes a surround sensor and monitors the surroundings of the door. The control device captures the signals from the sensor arrangement and evaluates the movement of an object in the surroundings of the door relative to the door and actively moves the door wing of the door, to prevent a collision with the object or to reduce its effects.

A method for controlling door movements of a controllable door of a motor vehicle, and a motor vehicle component. A control device and a sensor arrangement are attributed to the door. The door has a controllable motion influencing device, wherein a motion of a door wing of the door can be controlled and influenced by way of the motion influencing device to alternate between a closed position and an open position. The control device obtains position data which are representative of the geographic position of the motor vehicle and the control device controls movements of the door wing in dependence on the position data.

A method for controlling the movements of a controllable door of a motor vehicle that has two or more doors with movable door wings. One door is a main door and at least one other door is a secondary door. A control device and a sensor arrangement are associated to the doors. The secondary door includes a controllable motion influencing device, wherein a motion of the door wing of the secondary door can be at least partially controlled and influenced by way of the motion influencing device between a closed position and an open position. The motion influencing device brakes or arrests a door wing of the secondary door in the closed position for a predetermined time period after the main door has been opened, and/or in dependence on an identified situation.

A method of controlling the movements of at least one controllable door of a motor vehicle and a motor vehicle component. A control device and a sensor arrangement are assigned to the door, and the door has a controllable motion influencing device. A motion of a door wing of the door can be controlled and influenced by way of the motion influencing device in between a closed position and an open position. The sensor arrangement includes a distance sensor in the movable door wing that captures distance data during the motion, and obtains from the distance data captured with the distance sensor in different angular positions, the position of at least one object in the surrounding area of the door wing, by way of triangulation.