Servo control system and robot

A robot, characterized in that the robot comprises a host computer and a plurality of servos coupled to the host computer, each servo comprising a servo control system, the servo control system comprising:

• a main control module comprising two data terminals;
• and
• a communication module comprising a first communication port, a second communication port, a third communication port, a fourth communication port, a voltage balancing circuit, and a balance voltage output terminal, the first communication port and the second communication port being respectively, correspondingly coupled to the two data terminals of the main control module, the third communication port and the fourth communication port being both coupled to the host computer, the balance voltage output terminal being coupled to the third communication port and the fourth communication port via the voltage balancing circuit;
• wherein:
• the main control module sends a first communication signal to the host computer via the first communication port, and receives a second communication signal from the host computer via the second communication port, and the balance voltage output terminal controls a common mode voltage difference between the first communication signal and the second communication signal via the voltage balancing circuit.

A robot, characterized in that the robot comprises a host computer and a plurality of servos coupled to the host computer, each servo comprising a servo control system, the servo control system comprising:

• a main control module comprising a first data terminal and a second data terminal;
• and
• a communication module comprising a first communication port, a second communication port, a third communication port, a fourth communication port, the first communication port and the second communication port being respectively, correspondingly coupled to the first data terminal and the second data terminal of the main control module, and the third communication port and the fourth communication port being both coupled to the host computer;
• wherein:
• the main control module sends a first communication signal to the host computer via the first communication port, and receives a second communication signal transmitted from the host computer via the second communication port;
• and
• when one servo is powered up, the host computer identifies a serial number preset inside the servo via the first data terminal and the first communication port of the corresponding servo, the host computer assigns an identity identification number to the servo according to the identified serial number of the servo, and transmits the identity identification number to the main control module of the servo via the second communication port of the communication module and the second data terminal of the main control module.