Algorithm supporting service message sequential logic

Abstract

The invention provides an algorithm patent supporting service message sequential logic, and is mainly suitable for the field of internet of things, such as a smart power grid. Acquisition and issuing of large amount of industrial control services are performed between an informatization main station and service terminal equipment in an actual application scene of the internet of things, and the service terminal equipment has requirements for the service message sequential logic. Whole network time synchronization of the network is not achieved in the actual situation due to the limitation of certain application environments or the equipment, and multiple sets of equipment in the network has no time setting function. The invention provides a VRQ (Virtual Reach Queueing) algorithm. The requirement of ensuring the sequential logic when the service messages reach terminals without time synchronization of the equipment can be solved by analysis of the VRQ algorithm with combination of a VTC (Virtual Time Channel) technology and an SDN (Software Defined Networking) technology provided in the patent.

Description

technical field [0001] The invention is an algorithm patent that supports the sequential logic of business messages, and is mainly applicable to the field of the Internet of Things, such as smart grids. Background technique [0002] In the actual application scenario of the Internet of Things, a large number of industrial control services are collected and delivered between the informatization master station and the business terminal equipment, and the business terminal equipment has requirements for the timing logic of business messages. In reality, due to limitations of certain application environments or devices, the network does not achieve time synchronization across the entire network, and many devices in the network do not have the time synchronization function. In this case, the service packets sent by many devices cannot meet the requirements of time synchronization and timing logic. The main measures taken to solve these problems at this stage include: [0003] 1...

AI Technical Summary

Problems solved by technology

GPS brings high time synchronization accuracy, but the cost of doing so is good, and the application is also very limited

For example, the GPS external reference clock hardware is greatly affected by the weather and cannot achieve coverage in some areas. For example, underground equipment cannot use GPS clocks for time synchronization.

[0004] 2) No special measures are taken to ensure the time synchronization and timing logic requirements of the business, but the distance between device nodes is considered when building the network, and long-distance transmission is avoided as much as possible

But this method has no reliable guarantee and cannot fundamentally solve the problem

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