Cover body system and garbage can thereof

The invention relates to a cover body system which is applied to a garbage can and comprises a shell, a power supply device, a detection element, a positioning element, a processor, a transmission element and a server. The shell comprises a connecting part and a mounting part, the connecting part is used for connecting the shell with the garbage can, and the mounting part is used for mounting all the elements and devices; the power supply device is used for supplying power to all the elements and devices; the detection element is used for detecting garbage quantity information in the garbage can; the positioning element is used for positioning the real-time position of the garbage can; the processor is used for acquiring information of the detection element and the positioning element and transmitting the information to the server through the transmission element; and the server plans a moving route of the garbage can according to the information, so that the garbage can moves to a designated position for gar