COMMUNICATION SYSTEM OF MASTER-SLAVE MODE DIRECT CURRENT CARRIER

摘要

The present invention provides a master machine and a slave machine in master-slave mode direct current carrier communication system. The master machine includes a master machine clock circuit, a master machine power supply system, a master machine communication interface and a master machine control module; the slave machine includes a slave machine communication interface, a rectifier bridge circuit, an energy storage module, a slave machine power supply system, a slave machine clock circuit and a slave machine control module. The master machine communication interface may be a single-polarity communication interface or a dual-polarity communication interface. The slave machine communication interface includes a slave machine data modulation module and a slave machine data demodulation module. The master machine implements data transmitting and data receiving under a communication voltage or two different communication voltages. Applying the solution above, bidirectional data exchange between the master machine and the slave machine is implemented when the master machine supplies electric power for the slave machine, and the connection of the master machine with the slave machine via a pair of non-polarity wires is also implemented. Therefore, the system maintainability and communication accuracy can be improved, and the designs of the master machine and the slave machine, and the connection between them are simplified. Therefore, the solution can be applied to the minitype slave machine system such as electronic detonator network and intelligent sensor network.