用于电力物联网随机接入的低碰撞跳频通信系统

doi:10.11959/j.issn.1000-0801.2023018

Abstract

Abstract:

The communication network is an essential component of the data acquisition and information transmission in power Internet of things (IoT).To meet the development requirements of multiple power service in the future, the wireless communication technique with flexible-access and high scalability is one of the development directions for power IoT.Due to the features of large-scale access, random access time, high security and reliability for information transmission of power IoT, a frequency-hopping (FH) technique with low-hit rate for random access was proposed.The construction algorithm of such FH pattern was based upon the combination and shift operation of conventional FH sequences.By the theoretical arithmetic and numerical simulation, the properties of the proposed FH pattern and the error-rate of the FH-based power IoT were evaluated.The analysis reveals that the new class of FH sequences and the system can meet the requirements of large-scale access and highly reliable communication for the power IoT, which has good application prospects.

Key words: power Internet of things, frequency-hopping communication system, low hit, frequency-hopping sequence, BER

CLC Number:

TM727.2

Shu DU, Mei MA, Bo ZHAO, Qi ZENG, Xing LIU. Low-hit frequency-hopping communication systems for power Internet of things random access[J]. Telecommunications Science, 2023, 39(1): 117-125.

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References 20

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对比项	频隙集大小q	序列长度L	LHZ/NHZ大小Z	序列数目M
LHZ跳频序列集	14	28	6	12
NHZ跳频序列集	14	28	6	2

序号	业务名称	可靠性需求
1	配电自动化（二遥）	≥ 95%
2	配电自动化（三遥）	≥ 95%
3	用电信息采集	≥ 90%
4	电动汽车充电桩	≥ 99％
5	精准负荷控制	≥ 99％
6	供电电压自动采集	≥ 95％
7	输配变机器巡检	无人机≥ 95％
		机器人≥ 95％
8	智能营业厅	≥ 90%
9	基建视频监控	≥ 90%
10	仓储管理	≥ 90%
11	综合能源	≥ 90%
12	变电站一键顺控及运维班	≥ 90％
	全面监视项目

Low-hit frequency-hopping communication systems for power Internet of things random access

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