基于GSM的无线抄表系统安全性的设计  

Security Design of Wireless Meter Reading System Based on GSM

作　　者：李世军[1] 贾兆航[1] 何乐生[1] 张西洋[1] 陈玲[1] 

机构地区：[1]云南大学信息学院,云南昆明650091

出　　处：《现代电子技术》2011年第1期118-121,共4页Modern Electronics Technique

基　　金：国家级大学生创新性实验计划项目(091067307)

摘　　要：将GSM移动通信技术和Meter-Bus总线协议用于远程无线水表抄表系统,可以对用户用水量进行有效的实时监控,减少人力物力,简化布线,实现数据和能量共同传输。为了实现远程无线抄表,采用光电直读技术计量水表数据,Meter-Bus总线读取水表数据,GSM通信网络发送水表数据三者结合的方法,通过微控制器的综合管理,得到稳定可靠的远程无线抄表系统;对数据短信采用对称加密算法,CRC校验、插入随机数、异或、字节置换和映射的方法实施加密操作,提高了系统安全性,适合以MCU为核心的远程抄表系统。The users＇ water can be effectively monitored, the input and material resources can be reduced, the cabling can be simplified, and the transmission of data and energy can be realized by using the GSM communication technology and Meter-Bus bus protocol on remote wireless meter reading system. In order to achieve a wireless meter reading system, the direct- reading techniques can be used to measure the data of water meter, the Meter-Bus can be used to read the data of water meter, and the GSM network can be used to send the data of water meter. All of the three methods are managed and controlled by the MCU to get a stable and reliable system. SMS data is encrypted by using symmetric encryption algorithms, CRC checking, inserting a random number, XOR, byte displacing and mapping. After that, it improves the security of the system and it is suitable for the MCU-based remote meter reading system.

关 键 词：无线抄表系统 光电直读技术 GSM Meter-Bus 对称加密 

分 类 号：TP309.7[自动化与计算机技术—计算机系统结构]