Abstract: Embodiments include a front-end device collaboration method, applied to a security and protection system to reduce a delay of a collaborative operation. The security and protection system includes a plurality of front-end devices, and the plurality of front-end devices include a first front-end device and a second front-end device. The method includes: the first front-end device determines that a preset collaboration trigger event exists; and the first front-end device sends a collaboration instruction to the second front-end device, where the collaboration instruction is used to instruct the second front-end device to perform an operation corresponding to the collaboration instruction.

Abstract: Embodiments include a front-end device collaboration method, applied to a security and protection system to reduce a delay of a collaborative operation. The security and protection system includes a plurality of front-end devices, and the plurality of front-end devices include a first front-end device and a second front-end device. The method includes: the first front-end device determines that a preset collaboration trigger event exists; and the first front-end device sends a collaboration instruction to the second front-end device, where the collaboration instruction is used to instruct the second front-end device to perform an operation corresponding to the collaboration instruction.

Abstract: Provided are a device and method for measuring mechanical properties of a cell, the device including: a substrate layer (2); and a nanowire layer (1) arranged on the substrate layer (2) and including a nanowire array, nanowires (11) in the array are configured to emit an light signal, and in response to a cell (3) to be tested being placed on the nanowire layer (1), a change in the light signal emitted by the nanowires (11) supporting the cell to be tested (3) represents mechanical properties of the corresponding cell. Mechanical properties of a cell can be measured in real time according to a change in the light signal emitted by the nanowires.