Channel access control method for power wireless private network based on service classification

Abstract

The invention discloses a channel access control method for a power wireless private network based on service classification, which is characterized in that: the power wireless private network includes a main station computer, a front-end computer, a base station and a data acquisition terminal, and the data acquisition terminal is used to realize Power negative control information collection, a plurality of the data collection terminals are connected to the base station through a wireless ad hoc network, the base station and the main station computer are connected by a wired link, and a wireless network composed of a plurality of the data collection terminals and the base station is used. In the self-organizing network, messages are divided into at least 6 types according to service types, each type of message corresponds to a priority, and different types of messages have different waiting time intervals according to the priority level during channel access. The invention can improve the information transmission capability of the wireless power private network and ensure the real-time and reliability of emergency messages.

Description

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

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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