外文翻譯--基于gsm遠(yuǎn)程監(jiān)控系統(tǒng)的設(shè)計(jì)和實(shí)現(xiàn)（英文）

1、Design and Implementation of Remote Monitoring System Based on GSM Chen Peijiang, Jiang Xuehua School of Engineering, Linyi Normal University, Linyi, Shandong, 276000, China chenpeijiang@163.com Abstract Because the

2、wireless remote monitoring system has more and more application, a remote monitoring system based on SMS of GSM is presented. Based on the total design of the system, the hardware and software of the system is design

3、ed. In this system, GSM network is a medium for transmitting the remote signal. The system includes two parts which are the monitoring center and the remote monitoring station. The monitoring center consists of a com

4、puter and a TC35 communication module of GSM. The computer and TC35 are connected by RS232. The remote monitoring station includes a TC35 communication module of GSM, a MSP430F149 MCU, a display unit, various sensors

5、, data gathering and processing unit. The software of the monitoring center and the remote monitoring station is designed by using VB. The result of demonstration shows that the system can monitor and control the rem

6、ote communication between the monitoring center and the remote monitoring station, and the remote monitoring function is realized. 1. Introduction Remote monitoring is on-line real-time monitoring and controlling the

7、field equipment, and transmitting the real- time picture and test data to the terminal to forecast or diagnose[1]. The remote monitoring system is a effective method to obtain, analyze, transmit, manage and feedback t

8、he remote goal information, and it combines the Most advanced science and technology field of satellite positioning technology, communication technology, Internet technology and other areas, and it is the comprehe

9、nsive usage of instrumentation, electronic technology, modern communications technology, computer software and so on. According to the transmission methods of monitoring information, the remote monitoring system c

10、an be divided into two kinds, wired and wireless. Wired monitoring system can be used for the situation which has high real- time performance, large quantity of data, centralized controlling fields. Wireless monitorin

11、g is suitable for the occasion which has random monitoring scope, difficult wiring, small data, low real-time requirement and so on. GSM is a digital mobile communication network which develops rapidly in recent years

12、. Short Message Service of GSM is a value-added service based on data packet switching provided by mobile communication company using GSM network besides of all sorts of telecommunication services and bearer services

13、 based on the circuit-switched[2]. Because the GSM network can be interconnected and roamed all over the country, it has strong network ability, the users has no need to organize another network. The coverage of the

14、network is improved and the expensive network building and maintenance cost can be saved for users[3]. At the same time, the number of its users is not limited. Wireless communication of Using GSM has some features s

15、uch as two-way data transmission function, stable performance and so on. GSM network provides a strong platform for remote data transmission and monitoring the communication of equipment, ant it is an important

16、 method of wireless remote monitoring system. The paper uses SMS as a method of information transmission, the collected data of the remote monitoring station is transmitted to the central monitoring station by means

17、of the SMS through the GSM network. The central station analyzes the data and sends the controlling orders to the remote stations in the same way. Thus the remote monitoring function between the monitoring central st

18、ation and the remote monitoring station is realized. 2. Structure of the remote monitoring system based on GSM 2.1 Structure of the remote monitoring system The system is mainly composed of the central monitoring statio

19、n, remote monitoring station and GSM network. Central monitoring station is divided of monitoring central server and GSM modem, and the remote monitoring station is divided by MSP430F149 MCU, peripheral circuit and G

20、SM modem. The wireless remote communication between central monitoring station and remote monitoring station is realized by the GSM network, and the remote monitoring system based 2008 IEEE Pacific-Asia Workshop on Co

21、mputational Intelligence and Industrial Application978-0-7695-3490-9/08 $25.00 © 2008 IEEE DOI 10.1109/PACIIA.2008.195 6782008 IEEE Pacific-Asia Workshop on Computational Intelligence and Industrial Application978-0

22、-7695-3490-9/08 $25.00 © 2008 IEEE DOI 10.1109/PACIIA.2008.195 6802008 IEEE Pacific-Asia Workshop on Computational Intelligence and Industrial Application978-0-7695-3490-9/08 $25.00 © 2008 IEEE DOI 10.1109/PACI

23、IA.2008.195 678AT+CPIN=“xxxx” 3.2 Software design of central monitoring station The developing tool of the program design of central monitoring station is Visual Basic 6.0, and the software includes the controlling in

24、terface and initialization program of monitoring center, the program of accepting and sending short messages, data processing and preserving program. The most of important of those is the serial communication between

25、 the central monitoring center servers and GSM wireless communications module TC35, and the communication is the key of accepting and sending short message. Visual Basic 6.0 provides a serial communication control MS

26、Comm which can facilitate the realization of serial communication The software design tasks of the central monitoring station include sending instructions s to remote monitoring stations (in the form of short message

27、), accepting the monitoring data from the remote monitoring stations (in the form of short message), store and deal with database, and print historical data. Adopting VB to design the software of central monitoring s

28、tation has many advantages. For example, it has a good man- machine interface, it can provide serial communication control MSComm which can facilitate realization of serial communication, the programming method is ver

29、y and the operation is simple, connecting to database and its management are very easy. The following sections are the software design of the central monitoring station. 3.2.1 Design of man-machine interface Firstly,

30、we start VB and new a project, and then add a communication control (MSComm1) to the form which is used to access the serial port. There are two frames, they are short message sending area and short message accepting

31、 area. There are four text boxes and two buttons: (1) Txtcen is used to configure the number of short message center; (2) TxtPhon is used to input the telephone number of the accepter (for the sequence number of th

32、e remote monitoring station); (3) Txtcon is used to input the content of the short message; (4) Txtpdu is used to display the content of the PUD format of the short message (for the ASCII code); (5) Button of Ge

33、neration Short Message can convert the short message to PDU format; (6) Button of send a text message can send the short message to the accepter. There are three areas in the accepting text box, they are used to di

34、splay Caller ID, call time and call content. A Timer control is used for inquiring serial port termly, when there is a short message, it is read and coded, and then, the short message number, sending time and short me

35、ssage content are displayed in the text boxes, at the same time, they are stored in the database. 3.2.2 Design of key function modules Central monitoring station has includes several functions, they are initialization

36、 of serial port, sending and accepting short message, database interface and so on. There are there important modules. (1) Initialization of serial port Central monitoring station can accept and send short message b

37、y controlling GSM wireless communications module TC35. VB provides a communication control MSComm. (2) Send short message The sending and accepting of short message is implemented by AT command controlling GSM wir

38、eless communications module TC35[6]. The process of sending short message is as follows: Firstly, we code the number of short message center, the other number, the content of short message into PDU format, and then c

39、alculate the length of the short message, send AT + CMGS = , representatives Return, that is, 0x0D of ASCII code. When TC35 module returns the characters “>“ of ASCII, the PDU data can be input. PDU data is ended

40、 as character of . The module returns OK if the sending process of short message is completed. (3) Accept short Message Accepting short messages uses a timer to inquire the serial port periodically. When the short

41、message is arrived, the computer can accept an instruction that is + CMTI: “SM“, INDEX (storage location of short message) . Read PDU data for the AT command AT + CMGR = INDEX , and when the instruction is implemente

42、d, the module returns the content of the just received short message which is PDU format Then the short message is coded, the phone number of the caller, sending time of short message, the content of short. Finally,

43、the three elements appear in the interface, and they are stored in the database. 3.3 Software design of remote monitoring station The main tasks of the remote monitoring station include: (1) to convert and deal with t

44、he data collected by the through the A/D converter; (2) to show the received short message (control orders); (3) to send the real time data to the central monitoring station or manager by triggering the keyboard ke