Remote Intelligent Control System Design And Implementation

Constituted by the MCU control terminal and the host computer via the serial interface consisting of intelligent control system has been fully penetrated, including industrial control, intelligent home appliances, weather information monitoring and control and environmental data monitoring and other fields, including all levels, all the application basically just access the wired transmission, the use of RS-232 serial interface or RS-485 serial interface for data communication and transmission, part of which also uses a cable modem means of communication. Although the economic and practical, but its wired transmission greatly limits the full application of the technology.CDMA remote monitoring system uses CDMA technology is now more mature and resources to play network coverage, the transmission characteristics of a good and fast and other advantages for remote intelligent control terminal to provide a convenient wireless data transfer mode, which will surely become the industry control applications and on-site monitoring of areas such as exploration and development trends, and in the water, electricity, petroleum, coal, monitoring and other industries widely used.In order to make the design of the system can be realized, for the GPRS network and control circuits research is essential. Therefore, the main scope of the study covers the remote intelligent control terminals and the main control platform device in two parts. First, the control circuit controlling terminal equipment designed so that it can complete specific tasks independently, and then connect via GPRS wireless communication signals with a remote hosting platform, to achieve the ultimate design requirements of the system. Intelligent control node remote monitoring equipment installed on the remote terminal, the master device installed in the central control center or duty, the master device can be a PC or a mobile phone with a mobile communications device. I work independently to complete the development of intelligent remote control terminal to apply their knowledge to achieve the learning objectives. On this basis, developed a remote intelligent control terminal automatic calibration aspects of the application instance( a remote control to play college bell device). Intelligent remote control terminal core control device is the ATmega128 microcontroller, its main peripheral circuits are as follows:1. relay control circuit; 2. real-time clock circuit, the core components for the SD2403; 3. Built- CDMA MODEM circuit, the core components of DTGS-800; 4. anti-crash external timer reset circuit; 5. LCD display circuit, the core components of RT12864 M. Focus of this paper is: 1. remote intelligent control design hardware and interface circuit terminals; 2. for ATmega128 microcontroller peripheral driver circuit design; 3. remote intelligent control terminals in terms of auto- calibration;...