Electric wireless private network channel access control method based on service classification

Abstract

The invention discloses an electric wireless private network channel access control method based on service classification. The method is characterized in that an electric wireless private network comprises a master station computer, a front-end machine, a base station and data collection terminals, the data collection terminals are used for achieving electric negative control information collection, the data collection terminals are connected with the base station in a wireless self-organization network mode, the base station is connected with the master station computer through a wired link, messages are divided into at least six kinds in a wireless self-organization network formed by the data collection terminals and the base station according to service types, the message of each type corresponds to one priority level, and different waiting time intervals exist between the messages of different types in the channel access process according to the sequence of the priority levels. According to the method, the information transmission capacity of the electric wireless private network can be improved, and the real-time performance and reliability of emergency messages can be guaranteed.

Description

technical field [0001] The invention relates to a channel access technology in a wireless communication network, in particular, a method for controlling channel access of a power wireless private network based on service classification. Background technique [0002] The power wireless private network is a data support system for power supply enterprises to fully grasp the power consumption information of each power customer. It has functions such as power load monitoring, remote meter reading, power quality monitoring, line loss analysis, and reactive power compensation management. It is composed of remote data acquisition terminals. One of the key points of building a smart power wireless private network is the research of wireless channel access methods. The MAC protocol is a control protocol that must be followed when multiple users share the physical medium. It can solve how to effectively allocate resources to provide efficient multiple access capabilities. , which pla...

AI Technical Summary

Problems solved by technology

However, as the number of users continues to increase, some terminals cannot be directly connected to the base station, and need to be relayed through neighbor terminals to communicate with the base station, which increases the complexity of the network and the types of communication services

[0004] Due to the terminal self-organizing network in the electric power wireless private network, the polling access cannot meet the current requirements, and the following problems exist:

[0005] 1) During channel access, the base station and the terminal are completely equal, and the base station cannot effectively control the entire network, thereby reducing the communication rate of the entire network;

[0006] 2) There are many types of services in the network, and there is no priority, and the network cannot transmit the power services called by the main station in time;

[0007] 3) When an emergency occurs in the terminal, polling access cannot guarantee the timely transmission of terminal emergency data;

[0008] 4) The polling network delay is too large, which wastes wireless communication resources

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