电力电缆状态在线监测与防盗系统研究

发布时间：2018-07-01 17:00

本文选题：输电线路 + 电缆　；参考：《长安大学》2015年硕士论文

【摘要】：随着城市土地价格日益高涨以及高层建筑日益增多,为了确保输电和用电的安全,在城市电缆沟道和电缆隧道逐步取代了架空明线,且规模也越来越大。由于输电电缆构成里有一层起屏蔽作用的铜网,偷盗分子为盗割这些铜网,对输电电缆进行破坏,造成城区大面积停电事故时有发生。为了及时发现并做到及时制止犯罪分子对电缆的破坏,本文设计了新型的电缆防盗监控系统。论文根据对电缆防盗系统的功能需求,给出了系统的总体设计,系统主要包括电缆前端检测单元,传输单元和后台监控系统三部分。电缆前端检测单元的主要功能是对电缆进行实时检测,在此选用电力线载波法对电缆进行检测,其原理是在被测电缆上附加检测载波信号,若载波信号中断,则表示电缆被盗。传输单元选用无线和有线两种方式做为通信方式,在电缆出现被盗时,检测单元利用短消息无线通信技术发送警情给移动工作人员;与此同时通过RS485总线以及光纤将电缆信息发送至后台监控中心。后台监控中心在接收到电缆信息时,对这些信息进行分析处理,然后通过以太网通信方式将信息传输至监控平台,此时系统对电缆进行检测,在系统自检时会显示出当前检测的所有电缆的信息,若电缆出现故障,此时会将故障信息包括电缆编号、故障类型、发生时间等显示出来,并且通过短消息或者电话语音将故障信息通知给提前预置在系统中的手机号码,通知移动工作人员及时做出相应的措施,降低损失。经过现场验证,该系统可以完成预期的功能,能对电缆实现实时检测和监控,在电缆遭到外力破坏或者被盗割时进行报警。
[Abstract]:With the rising prices of urban land and the increasing number of high-rise buildings, in order to ensure the safety of transmission and electricity use, the overhead lines are gradually replaced by the urban cable trenches and the cable tunnels, and the scale is increasing. In order to find out and stop the destruction of the cable in time, this paper designs a new type of cable theft proof monitoring system. This paper gives the overall design of the system according to the function demand of the cable theft protection system. The system mainly includes the front end inspection of the cable. Three parts of the measuring unit, transmission unit and background monitoring system. The main function of the cable front end detection unit is to detect the cable in real time. The power line carrier method is used to detect the cable. The principle is to attach the carrier signal to the cable on the measured cable. If the carrier signal is interrupted, the cable is stolen. The transmission unit is wireless. When the cable is stolen, when the cable is stolen, the detection unit uses the short message wireless communication technology to send the police to the mobile staff. At the same time, the cable information is sent to the backstage monitoring center through the RS485 bus and the optical fiber. The background monitoring center divides the information when it receives the cable information. Then the information is transmitted to the monitoring platform through Ethernet communication. At this time, the system will detect the cable and display all the information of the cable at the time of self inspection. If the cable fails, the fault information will include the cable number, so the barrier type, the occurrence time and so on are displayed, and through the short cancellation. The fault information is notified to the mobile phone number in advance in the system, notifying the mobile staff to make the corresponding measures in time to reduce the loss. After verification, the system can perform the desired function, can realize real-time detection and monitoring of the cable, when the cable is destroyed by external force or when the stolen cut is cut. Call the police.
【学位授予单位】：长安大学
【学位级别】：硕士
【学位授予年份】：2015
【分类号】：TM75

【参考文献】