Human-machine interface system and communication control device thereof

A communication control device applied to a human machine interface system comprising a human-machine interface display control device, a local operation device and a display device, the communication control device comprising:

• an operation signal transmission circuit comprising a switching assembly, and having an operation signal input port and an operation signal output port, with the operation signal input port configured to connect to the local operation device to receive a local operation signal, and the operation signal output port configured to connect to the human-machine interface display control device;
• a display signal transmission circuit having a display signal input port and a display signal output port, with the display signal input port configured to connect to the human-machine interface display control device, and the display signal output port configured to connect to the display device, wherein the display signal transmission circuit is configured to transmit a display signal of the human-machine interface display control device to the display device;
• and
• a central controller electrically connected with the operation signal transmission circuit and the display signal transmission circuit, and comprising a wireless communication connection port configured for a communication connection with a remote operation device, wherein the central controller receives the display signal through the display signal transmission circuit and selectively transmits the display signal to the remote operation device through the wireless communication connection port;
• wherein the central controller determines whether the central controller receives the local operation signal through the operation signal transmission circuit when the wireless communication connection port receives a remote operation signal, and the central controller controls the switching assembly to disconnect an electrical connection between the operation signal input port and the operation signal output port and controls the operation signal output port to output the remote operation signal when the central controller determines that the central controller does not receive the local operation signal.