【作者】 郭碧波；

【导师】 郭文明；

【作者基本信息】 北京邮电大学 ， 软件工程， 2008， 硕士

【摘要】 直放站是无线网络系统的重要组成部分,它担负覆盖基站信号过弱的地区,扩大和加强网络覆盖范围和强度。无线网络覆盖的好坏很大一部分取决于直放站监控系统的运用,即对各直放站监测点运行数据的采集。因此,对于直放站监控系统的研究具有一定的现实意义和实用价值。针对我国电信运营商无线网络建设直放站的特点,各管网监控点分布范围广、数量多、距离远、不集中、无电信有线传输等特点,结合公共无线通信技术的应用和发展形势,本文提出一种基于GSM短信业务的远程无线数据采集方案,即利用短消息进行数据传输来实现管网参数的遥控。系统最大的优点就是低成本,具体体现在一次性投资建设成本低,设备成本低,系统运行成本低,系统维护费用低等几个方面。课题在分析了基于GSM短消息传输原理的基础上,重点解决直放站运行系统中运行数据无线远传的问题。最终实现监控数据的自动采集、传送,为直放站的优化和正常运行提供可靠的依据。具体来说,本文的工作主要集中在以下几个方面:1、监测中心主机与短信模块的通信。监测中心通过短信模块实现与下位机的通信,从而实现监测数据的接收与监测命令的发送。2、单片机控制短信模块收发短消息。将现场采集的数据传送到上位机的短信模块,并接收上位机发送的监测命令。3、现场数据采集系统。用单片机系统实现电压、发射功率的数据采集,并按一定格式存入数据存储区,供传输数据时取用。4、监测软件的设计。通过简单直观的人机界面显示来反映系统的工作流程,便于工作人员进行各种操作。更多还原

【Abstract】 The repeater is an important part of the wireless network systems.It can be used for covering the areas where the signals of base station is very weak,enlarging and strengthening the cover range and network intensity.The covering quality of the wireless network mainly depends on the application of monitor system,which collects the runtime data of the repeater.So it is realistic and practical to make a research on the monitor system of the repeater.According to the business characteristics of the construction of the repeater in our country,large numbers of the monitoring stations are scattered here and there in remote areas and there’s no wire for telecom transmission.As the application and development of public wireless telecom technology,this essay contrives a scheme,which is based on collecting GSM short message business,to illustrate the remote wireless data collecting,namely,it attains the telecontrol of network management parameters.The most outstanding advantage is the low cost in basic construction,equipment,the operating of the system and the attention running.This research project is based on the analysis of GSM short message transmission principles;mainly solve the long-distance wireless data transmition problem of the running system of repeater.Finally,the collection and transition of monitoring data can be finished automatically, which is the reliable basis of the optimization and normal running of the repeater.And finally it achieves the automatic collecting and transmitting of the data,provides reliable basis for its optimization and running normally:1、The communication between the host and short message module in the monitoring center.Based on the short message module,the monitoring center can communicate with the principal computers.And then the runtime data can be received,the orders can be sent out2、The single chip microcomputer controls the SMS module to receive and send messages.It’s the single chip microcomputer who collects and transmits the data to the short message module in position machine,and receives the orders from the monitoring center.3、The on-the-spot collecting system.The single chip microcomputer can be used to collect the data of electric pressure and transmitting power, store the data into the memory area in certain format,which then could be transferred when necessary.4、The design of monitoring software.It provides simple visual interface, which reflects the process of the system,and give the convenient to the operators.更多还原