A method and system for obtaining network time in parallel with multiple schemes

Abstract

The invention relates to the technical field of network communication and relates to a method and system for obtaining network time in parallel through multiple schemes. The method comprises the following steps: S1) sending a time obtaining request to a time synchronization server and a hypertext transfer protocol server in parallel and sending a time topic subscription request to a message queuetelemetry transmission server; S2) waiting for server response, and obtaining first network time replied by the time synchronization server and / or second network time replied by the hypertext transferprotocol server and / or third network time replied by the message queue telemetry transmission server; and S3) carrying out calculation and analysis on the first network time and / or the second network time and / or the third network time through an error comparison algorithm to obtain optimum network time as the system network time. The method and system can successfully obtain the network time from different operator lines.

Description

technical field [0001] The invention belongs to the technical field of network communication, and in particular relates to a method and system for obtaining network time in parallel with multiple schemes. Background technique [0002] The Internet of Things is an important part of the new generation of information technology, and it is also an important stage of development in the "informationization" era. At present, IoT (Internet Of Things, Internet of Things) devices are becoming more and more abundant, but most IoT devices do not have power supply chips and cannot directly check the time by themselves. They need to access the corresponding transport layer server through the transport layer protocol to obtain the time. [0003] The domestic invention patent with the application number CN201710167687.1 discloses a network time acquisition method, device and system, readable medium and storage controller. The disclosed method includes: pre-setting at least two NTP server ad...

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Problems solved by technology

[0004] However, the current mainstream IoT device time acquisition method is the NTP (Network Time Protocol, Network Time Protocol) protocol used by default at the bottom of the system, but most NTP Servers (Network Time Synchronization Servers) are set in foreign countries, not local self-built servers, so Some operators' lines may block NTP Server or udp (User Datagram Protocol, User Datagram Protocol) port 123 (the port used by the transport layer UDP protocol, the port number is 123), which will cause the IoT device to fail to obtain the time from the NTP Server The time is obtained, which further affects applications with timestamp verification. For example, when a smart speaker plays music, some music resource providers will verify the timestamp. Once the speaker system time is incorrect, the music cannot be played

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