A self-driving device system, comprising: a self-driving device capable of automatically walking and operating in a work area; and an adapter configured to output current to the charging station; wherein the self-driving device system comprises: a charging station configured to charge the self-driving device and comprising: an input interface connected to the adapter and configured to receive the current output by the adapter; and a first output interface configured to be connected to the self-driving device; and the self-driving device comprises: a charging interface configured to be connected to the first output interface of the charging station; wherein the adapter is configured to convert utility power to a low-voltage alternating current and output the low-voltage alternating current to the charging station; the charging interface is configured to receive the low-voltage alternating current; and the self-driving device further comprises a charging power circuit connected to the charging interface to convert the low-voltage alternating current to a low-voltage direct current; the input interface is configured to receive the low-voltage alternating current output from the adapter; the first output interface is configured to output the low-voltage alternating current output to the self-driving device; and the input interface of the charging station is electrically connected to the first output interface of the charging station by a printed circuit board. a self-driving device capable of automatically walking and operating in a work area; and an adapter configured to output current to the charging station; wherein the self-driving device system comprises: a charging station configured to charge the self-driving device and comprising: an input interface connected to the adapter and configured to receive the current output by the adapter; and a first output interface configured to be connected to the self-driving device; and the self-driving device comprises: a charging interface configured to be connected to the first output interface of the charging station; wherein the adapter is configured to convert utility power to a low-voltage alternating current and output the low-voltage alternating current to the charging station; the charging interface is configured to receive the low-voltage alternating current; and the self-driving device further comprises a charging power circuit connected to the charging interface to convert the low-voltage alternating current to a low-voltage direct current; the input interface is configured to receive the low-voltage alternating current output from the adapter; the first output interface is configured to output the low-voltage alternating current output to the self-driving device; and the input interface of the charging station is electrically connected to the first output interface of the charging station by a printed circuit board. an input interface connected to the adapter and configured to receive the current output by the adapter; and a first output interface configured to be connected to the self-driving device; and the self-driving device comprises: a charging interface configured to be connected to the first output interface of the charging station; wherein the adapter is configured to convert utility power to a low-voltage alternating current and output the low-voltage alternating current to the charging station; the charging interface is configured to receive the low-voltage alternating current; and the self-driving device further comprises a charging power circuit connected to the charging interface to convert the low-voltage alternating current to a low-voltage direct current; the input interface is configured to receive the low-voltage alternating current output from the adapter; the first output interface is configured to output the low-voltage alternating current output to the self-driving device; and the input interface of the charging station is electrically connected to the first output interface of the charging station by a printed circuit board. a charging interface configured to be connected to the first output interface of the charging station; wherein the adapter is configured to convert utility power to a low-voltage alternating current and output the low-voltage alternating current to the charging station; the charging interface is configured to receive the low-voltage alternating current; and the self-driving device further comprises a charging power circuit connected to the charging interface to convert the low-voltage alternating current to a low-voltage direct current; the input interface is configured to receive the low-voltage alternating current output from the adapter; the first output interface is configured to output the low-voltage alternating current output to the self-driving device; and the input interface of the charging station is electrically connected to the first output interface of the charging station by a printed circuit board.