Control keyboard and control system

The utility model provides a control keyboard and a control system. The control keyboard comprises a control module and a keyboard module, the control module comprises a CAN single-chip microcomputerand a CAN isolation module which are connected with each other. The keyboard module comprises a matrix keyboard and a keyboard protection circuit which are connected with each other; the CAN isolationmodule is also connected with an isolation protection circuit; the CAN isolation module is used for isolating input and output interfaces of the control keyboard through the isolation protection circuit; the keyboard protection circuit is used for performing overvoltage protection on the keyboard module; and the isolation protection circuit is used for carrying out overvoltage protection and overcurrent protection on the CAN isolation module. Through an output mode of a CAN bus mode, the complexity of a peripheral circuit is effectively reduced, and isolation protection, overcurrent protection and overvoltage protecti