SIM300模块GSM数据采集管理系统设计
关键词： 短信收发；串口通信；AT指令；VB；数据库
Design of Data Acquisition and Management System Based on GSM
Abstract：The project aims to enable students to combine the learned knowledge of computer and program development, to design an SMS send and receive information management system based on GSM module by using VB programming language. SIM300 module is connected to the PC through the serial port in the design, is controlled by AT commands on the PC side to implement an SMS function based on GSM. Simultaneously the ACCESS database is used as the back-end databases; the database is connected with the VB program by ADO control, so the VB program can realize the management of contacts and SMS. The program consists of four parts: SMS sending, SMS receiving, contacts management and SMS management. According to the input of others’ phone number we can Send SMS. Real-time monitoring serial data, when there is a new message it will give a warning, and we can read it through the operation. Contacts and SMS management can realize data browse, add, modify and delete through the back-end database. The message transmission using PDU mode, so we can send and receive messages in English and Chinese.
Key Words： SMS of receiving and dispatching；serial communication；AT command；VB；database
目 录
1 绪论 1
1.1 课题的目的和意义 1
1.2 移动通信的现状 1
1.3 移动通信的发展趋势 2
1.4 课题的主要问题及解决方案 2
2 GSM短信收发原理 4
2.1 GSM模块的原理 4
2.2 AT指令介绍 5
2.2.1 通用AT指令 6
2.2.2 短信发送AT指令 7
2.2.3 短信接收AT指令 8
3 GSM数据采集管理系统设计 11
3.1 硬件介绍 11
3.2 软件功能介绍 11
3.3 VB串口通信 12
3.3.1 VB串口通信MSCOMM控件介绍 12
3.3.2 串口通信的程序设计 14
3.4 VB数据库程序设计 17
3.4.1 ADO数据控件 17
3.4.2 通信录管理 18
3.4.3 收件箱管理 18
3.5 界面设置 18
3.5.1 欢迎界面 19
3.5.2 主菜单界面 19
3.5.3 短信发送界面 20
3.5.4 短信接收界面 21
3.5.5 通信录界面 23
3.5.6 收件箱界面 26
4 系统调试及运行结果 28
4.1 系统调试及遇到的问题 28
4.2 运行结果 28
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