水文缆道信号高可靠性传输系统  

Research of hydrological cableway signal transmission with high reliability

作　　者：李盛洪 金建辉[1] LI Sheng-hong;JIN Jian-hui(Faculty of Information Engineering and Automation,Kunming University of Science and Technology,Kunming 650500,China)

机构地区：[1]昆明理工大学信息工程与自动化学院,云南昆明650500

出　　处：《陕西理工大学学报（自然科学版）》2022年第4期8-13,22,共7页Journal of Shaanxi University of Technology:Natural Science Edition

基　　金：国家自然科学基金项目(61364008)。

摘　　要：目前水文信息的传输方法多采用有线半绝缘型,即所谓的“无线测流法”,但由于应用环境复杂,干扰源多,所以远距离、高可靠性传输成为一个技术难点,现有设计也没有完全解决这个难点,使得水文缆道信息的传输不可靠,抗干扰能力弱,受环境影响大,信息容易传输丢失。针对这一技术难点,研究出一种功率可调的隔离型水文缆道信息高可靠性传输系统。发射功率可调的设计方法可以实现信号的远距离传输,隔离接收的设计方法可以提高信号传输的抗干扰性,接收端微信号放大的设计方法可以增加接收端的灵敏度,保证了信号的高可靠性传输。经过研究试制及实际应用证明了该系统的可行性和可靠性。At present,hydrological information transmission mainly uses cable insulation,i.e.“wireless measurement method”.But due to the complex application environment and various interference sources,transmission across long distance with high reliability has become a technical difficulty which can not be completely solvedw with the existing designs.The difficulty makes hydrological cableway information transmission unreliable,anti-interference ability weak and easliy affected by the environment,thus resulting in easy information transmission loss.Aiming at this technical difficulty,a kind of isolated hydrological information transmission system with high reliability and adjustable power is developed.The transmission design method can realize long-distance transmission of the signal,and the isolation receiving design method can improve the anti-interference performance of the signal transmission,and the receiving design method can increase the sensitivity of the receiving end,so as to ensure the high reliability of the signal transmission.The feasibility and reliability of the system are proved by trial production and practical application.

关 键 词：水文信息 高可靠性传输 隔离接收 微信号放大 低功耗 防雷 

分 类 号：TN929.3[电子电信—通信与信息系统]