A door arrangement monitoring method, a safety device (5) and a door arrangement (1), including the safety device (5), are provided. The method monitors a monitored area positioned in front of a door opening, offset and parallel to a door closing plane, and performs a failure routine when an object (6) is detected in the monitored area and there is a risk of a collision of the object (6) with a door leaf (2). A current position of the object (6), and of a leading edge (23) of the door leaf (2), are detected. A direction of movement of the door leaf (2) is detected. The failure routine is initiated as a function of the current position of the object (6) and the leading edge (23) of the door leaf (2) as well as the direction of movement of the door leaf (2).

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.

A door sensor may include one or more emitters configured to emit an emission beam comprising IR light during an emitting phase. The door sensor may further include one or more receptors configured to receive a reception beam comprising the IR light reflected off of a surface during a listening phase and an interference beam from an adjacent door sensor. The door sensor may further include a controller operatively coupled to a memory storing computer-readable instructions that, when executed by the controller, cause the controller to: determine one or more of the frequency and phase of the interference beam; determine whether the door sensor should be primary or secondary to the adjacent door sensor; and adjust a timing of one or more of the emitting phase and the listening phase to reduce interference from the adjacent door sensor.

A leading closing edge safety arrangement for a vertically movable door device having door panel element(s) and a lower door end region. The leading closing edge safety arrangement includes a sensor arrangement for defining an optical signal path, and an optical signal path interrupting element in a first lower end position where the lower door end region contacts a floor surface. The sensor arrangement has a coupling device on each of a left and a right door side region of the lower door end region. The coupling device includes a first coupling device having a transmitter, and a second coupling device having a receiver. The first and/or the second coupling device has, as the optical signal path interrupting element, a switching arrangement with at least one switch to be triggered. The switching arrangement switches the transmitter and/or the receiver current-free at least in the first lower end position.

There is disclosed an automatic door installation 100 configured to determine the presence of an obstacle 150 in one or more detection zones remote from a door opening, comprising: at least a first door 104 slidable in a door opening along a horizontal door axis from an open configuration to a closed configuration during a door closing operation; a plurality of transmitter-receiver pairs, each transmitter-receiver pair comprising: a transmitter 116 for transmitting a beam 140 and a receiver 118 for receiving a reflection of the beam, wherein one of the transmitter 116 and the receiver 118 is coupled to the first door so that, in use, the transmitter and receiver move closer together during the door closing operation; wherein the transmitter 116 defines a transmitter axis 120 corresponding to the optical axis of the beam; wherein the receiver 118 has a field of view 142 for receiving the beam, which is oriented around a receiver axis; and wherein the transmitter axis 120 and the receiver axis 122 are configured so that the beam and the field of view overlap to define a detection zone for the transmitter-receiver pair in at least one operational configuration of the door installation. At least one of the transmitter axis 120 and the receiver axis 122 is inclined with respect to the horizontal plane and the transmitter 116 is vertically spaced apart from the receiver 118.

A power tailgate detection system is provided including a vehicle, a sensing system, and a control unit. The vehicle includes a bumper and a tailgate moveable between a closed position and an open position. The sensing system is disposed on an exterior surface of the tailgate and includes at least one emitter and at least one receiver. The emitter is positioned to emit radiation in a direction parallel to the exterior surface of the tailgate. The receiver is positioned to receive the radiation emitted by the emitter. The control unit is configured to control operation of the tailgate between to prohibit movement of the tailgate toward the open position when an object interferes with the radiation.

A modular garage door opener system and method including a garage door opener having a motor that is configured to be coupled to a garage door to open and close the garage door. The garage door opener includes a first accessory port including a first accessory mounting interface and a second accessory port disposed on the garage door opener including a second accessory mounting interface. An accessory device including a first mounting interface engages the first accessory mounting interface to couple the accessory device to the first accessory port. The accessory device may be disengaged from the first accessory mounting interface and then engage the second accessory mounting interface to couple the accessory device to the second accessory port. Additionally, a second accessory device may engage the first accessory port after disengagement of the accessory device.

The invention relates to a collision protection device for a pivotable hatch of a motor vehicle, comprising at least one sensor for detecting an obstacle in the pivoting range of the hatch, and comprising a control unit, which is designed to output, in dependence on sensor signals of the at least one sensor, control commands for stopping an opening movement of the hatch, wherein the at least one sensor is an optical visibility sensor, which is designed for capturing an optical visibility in an environment of the sensors.

A collision avoidance device for avoiding collision with an object in a door zone of a vehicle, including a sensing module, a damping module and a control unit. Upon detecting an object moving toward a door of the vehicle, the sensing module calculates a velocity of the object. The control unit controls the damping module to apply a resistance force to a pivot unit that pivots the door for enabling the door to rotate at most at an initial rotational speed without detection of an object, a first rotational speed slower than the initial rotational speed when the velocity is smaller than a predetermined value, or a second rotational speed slower than the first rotational speed when the velocity is greater than the predetermined value.

A system and method detects an obstruction in the path of a vehicle access control member moving from an open position to a closed position. The method includes transmitting a detection signal along an edge of the member towards a reflective surface mounted on the member. The detection signal includes a sequence of pulses having different amplitudes with the amplitudes varying linearly moving from a first pulse to a final pulse of the sequence of pulses. The method further includes receiving a detection response signal corresponding to the detection signal following reflection of the detection signal by one of the reflective surface and the obstruction. The detection response signal includes another sequence of pulses and the method further includes generating an obstruction signal indicating whether the obstruction is in the path of the access control member responsive to differences in amplitude between adjacent pulses in the sequence of pulses.