Electro-mechanical and electronically controlled access devices are described for controlling access to a building, premises or area in a secure manner such that a subject who is deemed ineligible for access will be barred entry. The devices contain multiple rotatable and moveable door panels. The door panels can be controlled by various drive mechanisms in order to control the passage through the device. The direction of flow through a device according to these embodiments is electronically controlled and may be changed at any point in time. At any instant in time, the flow through the device is unidirectional. Multiple devices can be stacked together to form clusters, which can be controlled according to traffic, time of day, or other factors.

A system includes a first panel and a second panel. The first panel is configured to be movably mounted within a vehicle structure to move between an open position and a closed position. The second panel is moveable independently of the first panel within the vehicle structure by a drive mechanism between a deployed position and a non-deployed position. The second panel is automatically or selectively moved to the deployed position to provide a privacy mode within a passenger compartment.

Embodiments of this application provide a testing apparatus, configured to test a battery and including a test body and a first door body. The test body may include an accommodating cavity for accommodating the battery, and an opening. The opening may communicate with the accommodating cavity, and the first door body may be connected to the opening and capable of moving relative to the opening. The first door body may have a first state and a second state; in the first state, the first door body may block a part of the opening; and in the second state, the first door body may seal the opening.