The invention relates to an automatic door and method for controlling an automatic door (10), comprising a door controller unit (70) for controlling a door, acting on a door drive; further comprising a monitoring system (11) comprising at least two door sensors (12, 32) mounted on two opposite sides of the door, as seen in passage direction, where each of said sensors (12, 32) comprises a scanning unit (16, 36) that monitors a sensor safety area, where a safety signal is applied to the door controller unit upon detection of an object within the sensor safety areas of said sensors. According to the invention after a predefined timespan (TL) of no detection within said sensor safety areas of said sensors, the monitoring system (11) is set to a restricted mode in which at least one sensor safety area is set to a restricted area, where the safety signal is then provided upon detection of an object within the restricted area, where further, once a detection in the restricted area occurs, the monitoring system is set back to an unrestricted normal mode.

The present invention relates to a door operator system and a method performed in a door operator system for moving at least one door leaf between a closed and an open position, comprising a door operator and a supervise unit, wherein the door operator comprise a drive unit adapted to be connected to and to move the at least one door leaf between the open and closed position, at least a first presence sensor connected to a control unit and configured to monitor at least an risk area and to send presence data associated with that an object is detected in the risk area to the control unit, at least a first and a second activation sensor connected to the control unit, wherein the first activation sensor is configured to monitor at least a first activation area at an outer side of the door leaf, the second activation sensor is configured to monitor at least a second activation area at an inner side of the door leaf, and the first and second activation sensors are arranged to send activation data to the control unit associated with that an object is detected in the first and/or second activation area, the control unit is connected to the drive unit and arranged to control the movement of the drive unit at least based on the received activation data and presence data, and wherein the supervise unit is connected to and adapted to receive activation data from the at least first and second activation sensors and presence data from the at least first presence sensor and configured to identify a conflicting data in a sequence of activation data and presence data.

Disclosed herein is a sliding door system including a motor, a driveshaft coupled to the motor, and a coupling mechanism fastened to the sliding door. The coupling mechanism is configured to convert rotation of the driveshaft into linear motion of the sliding door, such that movement of the coupling mechanism is directly correlated to movement of the sliding door. The sliding door system also includes a rotary encoder, a belt mechanically coupled to the coupling mechanism. The belt, as moved by the coupling mechanism, is configured to turn the rotary encoder as the sliding door moves, such that movement of the rotary encoder is directly correlated to movement of the sliding door and not directly correlated to movement of the motor and driveshaft.

The present invention relates to a refrigerator which allows a user to open the doors of the refrigerator easily. The present invention relates to a refrigerator and a method for controlling same, the refrigerator being capable of preventing the doors of the refrigerator from automatically opening due to a malfunction.

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 diagnostic apparatus acquires time series data during a time period in which a door closes, upon occurrence of a condition in which a door-side pin in a train carriage is maintained in a state where a locking device does not restrict the pin from moving downward, the time series data including first time series data of a position of the door, and second time series data of an output of a detector configured to detect whether the pin has dropped. The diagnostic apparatus diagnoses, based on the acquired time series data, an abnormality in a positional relationship between the pin and a car-side recess in an opening and closing direction of the door that is in a locked state.

The invention relates to a drive arrangement for the motorized movement of a tailgate (2) of a motor vehicle, wherein at least one drive unit (3, 4) is provided, having two drive connections (3a, 3b; 4a, 4b) for channeling out drive unit power, wherein a first drive unit (3) is motor and spring-operated and has a drive unit motor (5) as well as a drive unit spring (6), respectively acting on the two drive connections (3a, 3b) associated with the first drive unit (3), wherein the first drive unit (3) comprises a movement sensor (7) for generating a sensor signal, representing movement information regarding a movement between the drive connections (3a, 3b) of the first drive unit (3), wherein a second drive unit (4) is solely spring-operated and has a drive unit spring (8), acting on the two drive connections (4a, 4b) associated with the second drive unit (4), wherein a drive unit controller (9) is provided, which detects a predetermined deviation of the sensor signal (S) of the movement sensor (7) from a predetermined normal signal corresponding to the normal condition as an error condition and upon detecting an error condition carries out an error routine.

A vehicle door opening/closing apparatus includes: an electrode provided near a vehicle door, which is opened and closed by driving of an actuator; a detection unit configured to separately detect presence or absence of an opening/closing operation of requesting opening/closing of the vehicle door by a user and presence or absence of a proximity state where a person exists in proximity of the vehicle door based on variation in an electrostatic capacity in the electrode; and a controller configured to drive the actuator when the opening/closing operation is detected by the detection unit even when an opening/closing request of the vehicle door from a device other than the detection unit is recognized and not to drive the actuator when the detection unit detects the proximity state.

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.

Disclosed herein is a sliding door system including a motor, a driveshaft coupled to the motor, and a coupling mechanism fastened to the sliding door. The coupling mechanism is configured to convert rotation of the driveshaft into linear motion of the sliding door, such that movement of the coupling mechanism is directly correlated to movement of the sliding door. The sliding door system also includes a rotary encoder, a belt mechanically coupled to the coupling mechanism. The belt, as moved by the coupling mechanism, is configured to turn the rotary encoder as the sliding door moves, such that movement of the rotary encoder is directly correlated to movement of the sliding door and not directly correlated to movement of the motor and driveshaft.