Abstract: The present disclosure provides a smart sensor. The smart sensor includes at least one sensing module, a positioning module, a memory, a processor, and an alerting module connected to each other. The sensing module is configured to record a relative distance and a relative velocity between a user and people, or between the user and objects. The positioning module is configured to record a position signal of the user, and calculating the self-velocity of the user through the position signal. The memory is configured to store the relative distance, the relative velocity, the self-velocity, and a judging method. The processor determines whether the user is in a dangerous position based on the relative distance, the relative velocity, the self-velocity, and the judging method.

Abstract: A casing of a mobile device includes a front casing and a back casing. The front casing includes a column and at least two detent hooks. The back casing includes a protruding part and an actuating part. The protruding portion includes at least two fasteners. The actuating part is disposed in the hole and includes at least two cantilevers. The cantilevers are connected to the fasteners respectively. When an external force is applied to the actuating part, the cantilevers push the fasteners to get away from the detent hooks, so that the detent hooks are detached from the snapping parts. Therefore, the front casing and the back casing can be quickly assembled or disassembled.

Abstract: The present invention provides an anti-ESD elastic plate comprising a first conducting part, and a pair of second conducting part. The first conducting part has at least one projection structure. The two second conducting parts are connected respectively to the two lateral sides of the first conducting part. Each of the second conducting part further has a second conducting element and a press element, whereas the second conducting element is configured with a second projection structure and the pressing element is disposed aside the second conducting element. In another embodiment, the present invention further provides an anti-ESD device for conducting ESD by arranging the anti-ESD elastic plate as a conducting medium that is disposed at the boundary between an opening of a housing and a cover for sealing the opening.

Abstract: The present invention provides an anti-ESD elastic plate comprising a first conducting part, and a pair of second conducting part. The first conducting part has at least one projection structure. The two second conducting parts are connected respectively to the two lateral sides of the first conducting part. Each of the second conducting part further has a second conducting element and a press element, whereas the second conducting element is configured with a second projection structure and the pressing element is disposed aside the second conducting element. In another embodiment, the present invention further provides an anti-ESD device for conducting ESD by arranging the anti-ESD elastic plate as a conducting medium that is disposed at the boundary between an opening of a housing and a cover for sealing the opening.