Method, device and equipment for improving clock synchronization precision

Abstract

The invention discloses a method for improving the clock synchronization precision. The method comprises the steps that whether or not an event message is monitored from a hardware interface of equipment is judged, if the event message is received, a first hardware timestamp is generated, and due to the fact that the delay of a physical layer for message transmission is very short, the precision of the hardware timestamp is very high; a second hardware timestamp generated for responding the event message by the main equipment is acquired, and the transmission delay between the main equipment and the slave equipment is calculated by means of the first hardware timestamp, the second hardware timestamp and the transmission time between the main equipment and the slave equipment, wherein it isobvious that the precision of the transmission delay calculated according to the timestamps with the high precision is also high; and the clock time of the slave equipment is adjusted according to the transmission delay, clock synchronization is completed, and the purpose of improving the clock synchronization precision is achieved. The invention further provides a device and equipment for improving the clock synchronization precision and a computer readable storage medium. The device, the equipment and the computer readable storage medium have the effect corresponding to that of the method.

Description

technical field [0001] The present invention relates to the communication field, in particular to a method, device, equipment and a computer-readable storage medium for improving clock synchronization precision. Background technique [0002] With the advent of the digital age, distributed networks are increasingly widely used. A distributed network is formed by the interconnection of systems distributed in different locations. Most systems use local oscillators to maintain their own concept of time. Many applications require two independent devices to work in a synchronous manner. [0003] If all devices are interconnected by a communication network such as Ethernet, the devices can exchange time messages over the network and dynamically adjust their respective slave clocks relative to the master clock. [0004] In the prior art, a clock synchronization protocol - Network Time Protocol NTP, is that each device adjusts its clock according to the time information it obtains f...

AI Technical Summary

Problems solved by technology

[0006] The object of the present invention is to provide a method, device, equipment and a computer-readable storage medium for improving clock synchronization accuracy to solve the problem of low clock synchronization accuracy

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