An access control system controls synchronous or coordinated motion of two or more gates using a controller that calculates travel time for each gate and that adjusts the speed of the motors driving the gates to so allow the gates to reach the open and/or closed position at the same time, regardless of the length of the individual travel paths of the gate.

A vehicle structure including a roof beam and a first pillar and a second pillar each fixed relative to the roof beam. The first pillar and the second pillar are spaced from each other defining a door opening extending from the first pillar to the second pillar. A front door and a rear door are both disposed in the door opening. A panel is pivotally connected to the roof beam and pivotable relative to the roof beam to a lowered position. The panel, in the lowered position, extends across the door opening from the first pillar to the second pillar.

A power, split door system (12) for a vehicle (10), comprising a first vehicle door (14) arranged to articulate between a closed position and an open position; a second vehicle door (16) arranged to articulate between a closed position and an open position; first (40a, 40b) and second (42) drive means for moving the first and second doors, respectively, between the closed and open positions; and control means (18, 83, 85, 87) for controlling the first and second drive means so as to control movement of the first and second doors between the open and closed positions; wherein the control means is provided with positional information relating to each of the first and second vehicle doors; and wherein the control means is configured to ensure that each of the first and second vehicle doors do not attempt to simultaneously occupy the same space. The first and second doors may be configured such that in a closed position, the first and second doors partially overlap.

A door assembly for a restroom stall having first and second opposed side walls and a front opening includes first and second housings defining first and second inner cavities and configured to be mounted on the first and second side walls, first and second doors moveably mounted on the first and second housings, each having opposed inner and outer surfaces that are curved and being moveable along an arcing path between an open position and a closed position. In the open position, the door is retracted within the respective housing and at least partially received in the respective inner cavity, and in the closed position, the door is extended outward of the respective housing relative to the open position. In the closed positions, the first and second doors combine to obstruct the front opening, and in the open positions, the first and second doors permit passage through the front opening.

Monitoring systems for automatic doors comprise at least one input device configured for sensing at least one characteristic of at least one operational parameter of an automatic door system, a door system controller coupled to the at least one input device, at least one monitor display comprising a first interface operatively coupled to the door system controller, and at least another interface operatively coupled to the monitor display and configured to be operatively coupled to at least one remote display device. The at least one monitor display is configured to continuously request information representative of the at least one operational parameter characteristic from the door system controller and display the information. Methods of monitoring an automatic door system comprise transmitting data representative of an operational parameter characteristic from an input device to at least one door system controller; sending a description of the operational parameter to a monitor display continuously; and displaying indicia representative of the description of the operational parameter.

A power, split door system for a vehicle includes a first vehicle door and a second vehicle door arranged to be articulated between closed and open positions. A controller controls movement of the first and second doors between the open and closed positions. A collision zone is defined as a region of the door system in which the first vehicle door and the second vehicle door could potentially come into contact with one another. If both of the doors are within the collision zone during powered articulation of the doors, both are stopped within the collision zone and articulated in a reverse direction to the direction they were being articulated in and into either their fully open or fully closed positions in an appropriate manner that avoids collision of the doors or the doors may remain stopped.

A door system for a vehicle comprises a first vehicle door (16) hingedly mountable to a vehicle for articulation about a pivot axis (123) between a closed position and an open position, the door comprising a cavity; an actuator mechanism (100) disposed within the cavity, the actuator mechanism being pivotally coupleable to the vehicle at a position offset from the pivot axis; and drive means for driving the actuator mechanism to articulate the first vehicle door between said closed and said open positions.

The present disclosure includes systems, methods, and articles of manufacture for controlling a door. In various embodiments, exemplary systems may include a controller that may initialize and/or reset a limit count. A controller may initialize and/or reset a limit count in response to detection by a first position sensor of a first target. A controller may further initialize and/or reset a limit count by incrementing the limit count in response to a signal from a gear tooth sensor until a second position sensor detects a second target, whereupon the controller may store the limit count.

Door operator systems are described herein that include the use of an adaptor. It should be understood that the adaptor may be utilized in order to operatively couple separate door operator assemblies together in a double door operator system. The adaptor may include control components (e.g., switches, buttons, toggles, levers, or the like) that are used to turn the door operator system on and off. While the adaptor may be used to operatively couple two separate door operator assemblies together to form a double door operator system, the adaptor may also be used within a single door operator system. Furthermore, with respect to double door operator systems, the system may also utilize a back plate assembly comprising two or more separate back plates (e.g., two or more back plate portions).

A method for execution by a computing entity includes interpreting a fluid flow response from fluid flow sensors to produce a piston position of a piston associated with a head unit device. The head unit device includes a chamber filled with a shear thickening fluid (STF). The method further includes determining a door position based on the piston position. The method further includes determining parameters for wireless signals based on the door position. The method further includes facilitating utilization of the parameters for the wireless signals to promote successful communication of status and/or control of the door via the wireless signals.