A railcar hatch control system and method for operating railcar hatches of a multi-railcar train is disclosed. A multi-railcar train may have a locomotive and a plurality of railcars having railcar hatches that can be opened and closed. The system and method may include displaying railcar identification information for the railcars on an operator display device, and receiving selections of railcars from an operator that will have a railcar hatch operation performed thereon, such as opening or closing the hatches. The railcar hatch operation is input, and the system and method control the railcar hatch operation being performed only on the selected railcars, and not on the railcars that have not been selected by the operator. The system and method may have operator interfaces devices at an operator station of the train, or at a remote location or on a remote device that communicates wirelessly with the train.

A movable barrier operator comprising a motor, communication circuitry configured to receive a control signal and communicate with a door lock associated with a passageway door, and a controller. The controller is configured to authenticate the control signal, wherein authenticating the control signal includes associating the signal with a first level of access or a second level of access. The controller is further configured to communicate with the door lock via the communication circuitry to permit opening of the passageway door in response to associating the control signal with the first level of access and inhibit opening of the passageway door in response to associating the control signal with the second level of access. The controller is configured to cause the motor to open the movable barrier regardless of association of the control signal with the first level of access or the second level of access.

A thermal door release system is provided that includes a plurality of temperature sensors arranged within multiple environments; a controller; and a release apparatus; wherein the controller, using data from the temperature sensors, monitors the temperatures of the individual environments and when a temperature for an environment reaches a set temperature threshold for that environment, causes an action such as the release apparatus to operate a door to a specified position. The set points and actions to be taken can be set per environment by a user, such that different environments will have different set points. In an embodiment, the system can support staged logic such that at various different user-defined set point temperatures for an environment, specified actions can be taken, for example, sending an email to the facilities manager when the temperature is significantly above normal and closing the door when it reaches a higher set point value.

A partial-opening system for a motor vehicle opening leaf includes an actuator having a fixed frame mounted on the opening leaf and an actuating element moveable between a retracted position in which the opening leaf is in a closed position, and a deployed position in which a free end of the actuating element is adapted to bear on the central pillar in order to partially open the opening leaf. The system further includes a device for retaining the opening leaf having a retaining end-piece arranged at the free end of the actuating element of the actuator and a retaining element adapted to be mounted on the central pillar of the vehicle, the retaining device adapted to maintain the opening leaf in its retracted position and to release the opening leaf in the case of an opening action on the opening leaf on the part of the user.

One general aspect includes a method to indicate the space available to open a vehicle door, the method including: sensing, via a processor, a horizontal distance between the vehicle door and an object in an environment surrounding a vehicle; determining, via the processor, if the horizontal distance is greater than or less than a first threshold value; determining, via the processor, if the horizontal distance is greater than or less than a second threshold value; and providing, via the processor, an indicator based on the determination of whether the horizontal distance is greater than or less than the first threshold value and the determination of whether the horizontal distance is greater than or less than the second threshold value.

A movable barrier operator comprising a motor, communication circuitry configured to receive a control signal and communicate with a door lock associated with a passageway door, and a controller. The controller is configured to authenticate the control signal, wherein authenticating the control signal includes associating the signal with a first level of access or a second level of access. The controller is further configured to communicate with the door lock via the communication circuitry to permit opening of the passageway door in response to associating the control signal with the first level of access and inhibit opening of the passageway door in response to associating the control signal with the second level of access. The controller is configured to cause the motor to open the movable barrier regardless of association of the control signal with the first level of access or the second level of access.

Methods and apparatus to wirelessly interlock doors are disclosed. A door system includes a user interface to receive interlock configuration data input from a user, the interlock configuration data to define an interlock condition to be satisfied before a first door is to undergo an operation, the interlock condition associated with a current state of a second door. The door system includes a first wireless transceiver to receive a signal from a second wireless transceiver associated with a second door. The method includes a door operation controller to at least one of (1) implement the operation of the first door in response to a request when the current state of the second door satisfies the interlock condition, (2) ignore the request, or (3) not execute the operation of the first door in response to the request when the current state of the second door does not satisfy the interlock condition.

A door driving device includes a driving unit driving a door that opens and closes an entrance of a vehicle having a door case, and a control unit controlling the driving unit such that the door moves with a discontinuous acceleration during a period from when the door starts to open to when the door moves at a constant speed in an opening direction in which the door is retracted into the door case.

An adjusting device for a door closer having a worm screw intended to be engaged with the door closer, a drive wheel solidly attached to the worm screw, a connection element and an indicator, wheel, where the connection element includes a first wheel meshed with the drive wheel and a second wheel which is solidly attached with the first wheel, and the indicator wheel is meshed with the second wheel.

The present invention discloses a skylight operating system of a modular data center, so as to timely respond to a firefighting requirement of the modular data center to reduce occurrence of firefighting-related accidents. The skylight operating system comprises: an electric skylight; a firefighting environment index monitoring device arranged inside the modular data center; a monitoring and interacting device arranged in a monitoring room outside the modular data center, and connected with the electric skylight and the firefighting environment index monitoring device, the monitoring and interacting device adapted for receiving monitoring information of the firefighting environment index monitoring device, and opening the electric skylight upon determination that a firefighting-related issue occurs inside the modular data center.