Abstract: An electricity generating device including a base having a track, an electricity generating mechanism and a kinetic mechanism. The electricity generating mechanism includes a contact pressure assembly disposed on the track, and an electricity generating module connected to the contact pressure assembly. The electricity generating module is configured to convert mechanical energy generated by the contact pressure assembly into electrical energy. The kinetic mechanism includes at least one slider disposed on the track, and a drive assembly connected to the slider for driving the slider to continuously move along the track. The slider repeatedly rolls over the contact pressure assembly when driven by the drive assembly to continuously move along the track.

Abstract: An electricity generating device including a base having a track, an electricity generating mechanism and a kinetic mechanism. The electricity generating mechanism includes a contact pressure assembly disposed on the track, and an electricity generating module connected to the contact pressure assembly. The electricity generating module is configured to convert mechanical energy generated by the contact pressure assembly into electrical energy. The kinetic mechanism includes at least one slider disposed on the track, and a drive assembly connected to the slider for driving the slider to continuously move along the track. The slider repeatedly rolls over the contact pressure assembly when driven by the drive assembly to continuously move along the track.

Abstract: A system for actively notifying instant messages and locations in a certain area and a method therefor contain a controlling device function module for judging messages and functions transmitted to a processing device function module of a at least one service device function module from a back-site device function module. The back-site device function module chooses the messages of the processing device function module. The at least one service device function module transmits the messages to a user handheld device from the back-site device function module, and the at least one service device function module includes a WiFi device and a processing device function module. The user handheld device transmits a regional location message, a language using system code, and a group identification code of the user handheld device to the at least one service device function module in the certain area.

Abstract: A system for actively notifying instant messages and locations in a certain area and a method therefor contain a controlling device function module for judging messages and functions transmitted to a processing device function module of a at least one service device function module from a back-site device function module. The back-site device function module chooses the messages of the processing device function module. The at least one service device function module transmits the messages to a user handheld device from the back-site device function module, and the at least one service device function module includes a WiFi device and a processing device function module. The user handheld device transmits a regional location message, a language using system code, and a group identification code of the user handheld device to the at least one service device function module in the certain area.