Multi-controller system and coding method thereof, power utilization device and control equipment

[0001] This application provides a multi-controller system and its encoding method, electrical device, control equipment, computer-readable storage medium, and computer program product. The multi-controller system includes a master controller, a first slave controller, and a second slave controller. The master controller is connected to the first slave controller via a first trigger signal line, and the first slave controller and the second slave controller are connected via a second trigger signal line. The master controller is configured to send a first trigger signal to the first slave controller via the first trigger signal line and encode the first slave controller. The first slave controller is configured to, in response to receiving the first trigger signal, send a second trigger signal to the second slave controller via the second trigger signal line, so that the second slave controller can perform encoding.