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中国农学通报 ›› 2015, Vol. 31 ›› Issue (14): 74-78.doi: 10.11924/j.issn.1000-6850.casb15010137

所属专题: 水产渔业

• 水产 渔业 • 上一篇    下一篇

海洋渔船RFID系统设计与防碰撞技术研究

徐 硕1,王 宇1,沈丹丹2,王立华1,王振洲1   

  1. (1中国水产科学研究院渔业工程研究所/中国水产科学研究院渔业信息工程研究中心/中国水产科学研究院渔业信息工程功能实验室,北京 100141;2上海海洋大学信息学院,上海 201306)
  • 收稿日期:2015-01-20 修回日期:2015-03-12 接受日期:2015-03-26 出版日期:2015-06-02 发布日期:2015-06-02
  • 通讯作者: 徐 硕
  • 基金资助:
    中国水产科学研究院院部中央级公益性科研院基本科研业务费专项资金项目“海洋渔船超短波自组织网络通信技术研究项目”(2014A10XK06)。

Design and Research on Fishing Marine RFID System and Anti-collision Technique

Xu Shuo1, Wang Yu1, Shen Dandan2, Wang Lihua1, Wang Zhenzhou1   

  1. (1Institute of Fisheries Engineering of Chinese Academy of Fishery Sciences/Fisheries Information Engineering Research Center of Chinese Academy of Fishery Sciences/Fisheries Information Engineering Functional Lab of Chinese Academy of Fishery Sciences, Beijing 100141; 2College of Information, Shanghai Ocean University, Shanghai 201306)
  • Received:2015-01-20 Revised:2015-03-12 Accepted:2015-03-26 Online:2015-06-02 Published:2015-06-02

摘要: 为优化射频识别系统(RFID)性能,达到便捷高效管理和保障渔业安全生产,在对现有ALOHA算法的分析基础上,基于最优化原理提出一种改进型动态帧时隙ALOHA防避碰算法。该算法根据标签的数量动态,改变帧时隙的长度。运用改进的动态帧时隙算法对标签数量进行精确估计。通过仿真比较,在标签数量大量增加或者数量很少的情况下,改进后的算法使系统吞吐量最大达到了43%。当标签个数变化时,系统的吞吐量变化并不大;系统响应时延在标签数量变多的时候相比传统算法优势明显,响应时间几乎减少一半。相比传统算法,改进后的算法在系统吞吐量、系统响应时延等方面都有了明显的改善,提高了整个射频识别系统的性能,较好的适应了系统要求。

关键词: 适应性, 适应性, 烤烟, 品种 (系), 安顺

Abstract: To optimize the performance of radio frequency identification system (RFID), achieve efficient management and ensure fishery production safety, the paper put forward an improved dynamic frame slotted ALOHA anti-collision algorithm based on the analysis of the existing ALOHA algorithm. The algorithm changed the frame slot length according to the number dynamics of tags. The improved algorithm used the dynamic frame slotted algorithm to estimate the number of tags. Simulation results showed that the maximum throughput of the improved algorithm system reached 43% when the number of tag increased or decreased. The throughput changed little when the number of tags changed. Compared with the traditional algorithms, the improved algorithms had obvious advantages on response time of the system when the number of tags changed much, and the response time reduced almost in half. The throughput and response delay of the improved algorithm had been significantly enhanced compared with the traditional algorithm. The new algorithm improved the performance of radio frequency identification system and better adapted to the requirements of the system.