Time synchronization method of master-slave structure multi-node network
A time synchronization, multi-node technology, used in multiplexing communication, time division multiplexing systems, electrical components, etc., can solve the problems of high application cost, clock synchronization accuracy can only reach millisecond level, NTP is not suitable, etc. , to achieve the effect of high-precision time synchronization
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[0039] In order to describe the present invention in more detail, the technical solution of the present invention will be described in detail below with reference to the accompanying drawings and specific embodiments.
[0040] In the present invention, each node of the network is physically connected by wire. The communication between nodes can adopt RS485, RS422, RS232, CAN bus, etc. (The following uses RS485 / 422 / 232 as an example to explain, in fact, other types can also be used. Communication mode), two clock synchronization mechanisms are designed. One mechanism is the response type. The master node sends a synchronization message to the slave node. The synchronization message contains the current time information of the master node. This synchronization method can not only realize the time synchronization of the master and slave nodes, but also realize the master node to the slave node. The node performs timing, the master node responds to the time with each slave node, and ...
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