GPRS通讯技术在远程数据采集系统中的应用

文档编号:ZD828    文档字数:25797,页数:69

 摘  要
 远程数据采集系统在工业控制领域中有着十分重要的意义。在许多工业场合，尤其是对于一些分散的、无人值守的现场，需要对数据进行定时采集以便及时了解现场的情况，并根据情况发送一些简单的控制命令。单片机和PC通过串行口构成的多微机监测系统己经广泛应用于工业控制、数据传输、水利系统、消防治安、智能楼宇、银行金融等方面，这些系统原来大多采用有线网络、短距离无线网络等通信方式，其固有的缺陷很大程度上限制了其使用的场合。
 因此，本文提出了一种基于GPRS(General Packet Radio Service)的无线数据采集系统。本系统主要是由数据采集终端、数据通信模块和监控中心三部份组成。其中数据采集终端主要为数据采集设备来采集数据；数据通信模块主要则有GPRS模块来实现数据传输功能；外网的监控总站则是由系统软件组态设置的计算机系统组成。整个工作过程是先通过流量计进行数据采集，再由无纸记录仪对数据进行处理，并记录下各个厂房的瞬时流量和累积流量，将 GPRS DTU与无纸记录仪相连，利用GPRS终端将数据传至GPRS网络与Internet网络进行空中数据交换，最后送至服务器，由计算机上的力控组态软件进行监控。
 
关键词：GPRS技术；远程数据采集；无线数据传送；力控组态软件

 Abstract
 The Remote Data Acquisition System has the important significance in industry control field. In many industry cases，especially for some distributed and no watcher locale，we need to collect data at fixed time to know the locale situation in time, and then according to the situation send some simple control instructions. The realization mode of the traditional remote monitor controlling the other hand the multi-CPU monitoring system，which is connected by single-chipped computer and PC machine through serial interface is widely used in the fields of industry and data monitoring. The communication way of these systems is always cable modem，radio station and soon. But their inherent fault limits the fields in which these systems are used.
 Therefore，the paper refers to a data collected system that based on GPRS. This system mainly is by the data acquisition terminal, the data communication module and the monitoring center three parts is composed. Data acquisition terminal mainly gathers the data for the data acquisition equipment; The data communication module host important regulation has the GPRS module to realize the data transmission function; Outside the net monitoring main terminal is composed by the system software configuration establishment computer system. The entire work process first carries on the data acquisition through the flow meter, then carries on processing by the non-paper recording instrument to the data under, and records each workshop instantaneous current capacity and the accumulation current capacity, is connected GPRS DTU with the non-paper recording instrument, passes on using the GPRS terminal the data to the GPRS network and the Internet network carries on the airborne data exchange, the most evacuation to the server, controls the configuration software by the computer on strength to carry on the monitoring.
 
 
 
 
 Key words：GRPS technology；remote data acquisition； wireless data transfer；
 Force control configuration software

目 录
摘要………………………………………………………………………………………………….I
1 绪论……………………………………………………………………………………………….1
1.1  概述…………………………………………………………………….…………………..1
1.2  本课题研究的内容及解决的问题………………………………………………………...2   
1.3  本课题提出的意义……………………………………………………………. . .………..3
2 GPRS通信技术……………………………………………………………………………. …. 4
2.1 移动通信技术的发展概况………………………………………………………………….4
2.2  GPRS的概念…………………………………………………………………….... ……...5
2.3  GPRS的优点……………………………………………………………. . .……………...6
2.4  GPRS网络的现状和发展…………………………………………………………………7
2.5  GPRS的特点及应用……………………………………………………………………....7
2.6  GPRS的工作原理…………………………………………………………………………9
2.7  GPRS 的新应用和局限性分析…………………………………………………..............12
3 基于GPRS的远程数据采集系统的硬件结构…………………...............................13
 3.1  系统总体结构……………………………………………………………………………13
 3.2  数据采集模块…………………………………………………………………………....14
 3.3  GPRS DTU 数据通信模块………………………………………………………………..19
4  基于GPRS的远程数据采集系统的软件设计………………………………………25
 4.1 系统软件概述……………………………………………………………………………25
 4.2  终端设置………………………………………………………………………………..25
 4.3  监控中心组态软件的设计……………………………………………………………..32
4.4  现场运行画面………………………………………………………..........43
5  总结与展望………………………………………………………………………………….50
致谢………………………………………………………………………………………………..51
参考文献………………………………………………………………………………………….52
附录一…………………………………………………………………………………………….53

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