How many communication modes does the hotel room control system have? Which is relatively better?

Considering the stability, the hotel room control system generally adopts CAN and TCP/IP communication, but the cost of TCP/IP is high, and 485 communication is rarely used in the hotel room control system due to its own limitations.

There are three main types of hotel room control system: RS 1485, CANBUS and TCP\IP.

RS485 belongs to a single main network structure, and the bus utilization rate is low. The node error will lead to the paralysis of the whole network, and the system cost is high, and the later maintenance cost is high.

Canbus is a multi-master network structure, which is reliable in error handling and error detection. Node failure will not affect the whole network, and the network debugging is easy, the system cost is low, the later maintenance cost is low, and the safety and reliability are high. CANBUA protocol is widely used in industrial control field, such as automobile application field which requires high safety and reliability.

Tcp\Ip is a standard and open network, which has good system compatibility and interoperability and strong resource sharing ability, but the system cost is high, and it is mainly used for data transmission. RS485 and CANBUS are generally recommended for industrial control.