Communication system

Abstract

The application provides a communication system, including a wireless device and an external device. The external device includes a first controller, a first positive interface and a first negative interface. The first positive interface and the first negative interface are used for connecting the positive pole and the negative pole of an external power supply. The first controller includes a first sending end and a first receiving end. The wireless device includes a second controller, a second positive interface and a second negative interface, and a battery. The second positive interface and the second negative interface are connected with the positive pole and the negative pole of the battery respectively. The second controller includes a second sending end and a second receiving end. When the wireless device and the external device are connected, the first positive interface is connected with the second positive interface, and the first negative interface is connected with the second negative interface. The first sending end is connected with the second receiving end through a first communication interface and a second communication interface, and the first receiving end is connected with the second sending end through the first communication interface and the second communication interface, so that the first controller and the second controller can communicate. Charging and communication through the same interface simplify the interface.

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