Research Of The Remote Monitoring And Control Module

Short message is a simple and convenient means of data communication in GSM. Its business and applications are developing very quickly and widely. It has the following advantages: it is safe and reliable for short message to transmit, the service for short message does not need the communication expenses, charge a small amount of service charge only, and it can use existing GSM network. It needn't invest in the construction of the launcher, in addition, GSM has roam characteristic automatically. It can realize a lot of value-added service through module of integration to utilizeComputer units including PC and single chip connected through serial interface were applied widely in industry control, condition measure. These systems almost communicate through RS232, RS485 or Modem. These manners limit deeply situation of the units' application though these economy and practicality. In order to solute these disadvantages, we find that we can apply the GSM common network to transport data. That is, we use GSM modem that can support short message service to transport alarm information connecting with the single chip microprocessor system through standard RS232 interface. We can make the data transported wireless, and the monitor terminal is not only PC, but also mobile telephone or other mobile terminals.The module in this monitoring system adopts wireless module of TC35T of Sidemens Company, the module is connected with control unit designed through standard RS232. The control and inquiry of the long-range equipment, etc. can be finished through the wireless module.The data of the equipment can be sent to the short message module through standard serial interface, and then send to users of the need data with the form of short message; Users' control order can administrate the wireless module that the equipment linked to each other through message delivery, after this module receives the message of controlling, it is sent to the equipment by standard RS232 and finish corresponding operation.The paper introduces the concept of wireless data and short message business, AT command of short message and TC35T module, wireless control unit hardware circuit design, wireless control unit software design and anti-disturbance design.The first part of paper introduces several ways of wireless data transmission briefly and analyzes especially the principle and advantage of short message transmission by the GSM network.The second part of paper introduces several kinds of forms of the message, and introduces application under the super terminal station of AT order of short command especially. At the same time, the part also introduces the each interface and characteristic of wireless communication module TC35T of Siemens Company.The third part of paper introduces the principle of the wireless monitoring system briefly, and introduces the microprocessor, data memory, data memory, serial interface circuit, AD chip, temperature sensor, manostat detailedly.The fourth part of paper introduces the thinking of the software design of the unit wirelessly, and provides some procedures of the single-chip and module communication. At the same time, the part explains the item needing paying attention to in the procedure.The fifth part of paper introduces the hardware and software anti-disturbance design.The paper studies how to realize remote controller by GSM wireless module and single-chip microprocessor, extensively. Our research has the prospect extensively.