基于CSS的实时定位系统防碰撞性能分析

doi:10.3976/j.issn.1002-4026.2014.06.007

山东科学 ›› 2014, Vol. 27 ›› Issue (6): 43-47.doi: 10.3976/j.issn.1002-4026.2014.06.007

基于CSS的实时定位系统防碰撞性能分析

徐文青，张延波，王忠民，郭林鑫，宋伟宁

1. 山东省科学院自动化研究所，山东济南 250014； 2. 威海北洋电气集团股份有限公司，山东威海 264209

收稿日期:2014-06-20 出版日期:2014-12-20 发布日期:2014-12-20

Anticollision performance analysis of a CSS basedrealtime localization system

XU Wen-qing,ZHANG Yan-bo,WANG Zhong-min,GUO Lin-xin,SONG Wei-ning

1. Institute of Automation, Shandong Academy of Sciences, Jinan 250014, China; 2.Weihai Beiyang Electric Group Corporation Limited, Weihai 264209, China

Received:2014-06-20 Online:2014-12-20 Published:2014-12-20

摘要/Abstract

摘要： 阐述了基于CSS的实时定位系统工作原理和通信协议，通过建立信道中标签发射信号的概率分布模型，分析了标签的防碰撞性能，推导出吞吐率最大时，时隙中的子时隙个数、占空比以及标签数量之间的关系。仿真结果验证了其正确性，通过对子时隙个数、占空比和标签数量等参数进行设计，可达到最高吞吐率，约为18%。

关键词: 啁啾扩频, 防碰撞, 实时定位

Abstract: We present work principle and communications protocol of a CSS based realtime localization system. We also analyze anticollision performance of a tag through establishment of the probability distribution model of tag transmission signals in a channel. We further acquire the relationship among subtimeslot number, duty cycle and tag number when throughput attains the maximum. Simulation results verify its validity. Its maximum throughput is about 18% through the design for such parameters as subtimeslot, duty cycle and tag number.

Key words: anticollision, CSS, realtime localization

中图分类号:

TN98

徐文青，张延波，王忠民，郭林鑫，宋伟宁. 基于CSS的实时定位系统防碰撞性能分析[J]. 山东科学, 2014, 27(6): 43-47.

XU Wen-qing,ZHANG Yan-bo,WANG Zhong-min,GUO Lin-xin,SONG Wei-ning. Anticollision performance analysis of a CSS basedrealtime localization system[J]. SHANDONG SCIENCE, 2014, 27(6): 43-47.

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基于CSS的实时定位系统防碰撞性能分析

Anticollision performance analysis of a CSS basedrealtime localization system

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