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Prerequisite for hydrological monitoring of the irrigation area is adequate and reasonable allocation of water resources with one of the core technology. Based on monitoring sites scattered irrigation district and a large number of traditional wired monitoring mode, the construction and maintenance costs are very high, for example, to take a dedicated communication facilities, dedicated telephone lines, specific shortwave traditional data transmission will be because irrigation data acquisition density small, resulting in low efficiency in the use of special construction funds, combined with the strong seasonal irrigation, the effect is even more undesirable. Moreover, the system maintenance difficulties, the communication signal is not stable. Irrigation District water process, on the basis of analysis of the existing GSM communication module features a short message function to transfer data automatically amount of water systems technology solutions. The program does not require an independent fabric network, and can take full advantage of existing communications resources established, stable, flexible, reliable system characteristics ideally suited for the other due to the existing network operators can provide the safe operation of the system protection amount of water irrigation area automatic system. The system consists of a signal processing modules, communication modules, wireless communication module, and a computer terminal, the signal processing module microcontroller C8051F120 complete data acquisition, processing, system settings, communication control and other functions. Industrial-level GSM communication module TC35i wireless communication module to complete the short message reception and transmission functions. On a communication module with the computer terminal connected to receive data, take the short message. Computer terminal using Lab-VIEW software to complete the data collection and processing, and personal communication with a series of computer and wireless communication module to achieve real-time signal acquisition, analysis, computing and storage capabilities, good human-computer interaction, the user can be real-time observation changes in the water level and water, after the end of the test can also read the stored data files for detailed analysis. On the basis of theoretical analysis, this study design optimization based on the the microcontroller automatically the amount of water system design, the interface circuit between the TC35i microcontrollers and monitoring computer, the preparation of the lower instrument data acquisition and communication procedures, the use of Lab-VIEW software implementation analysis of the measurement data processing and storage. The simulation test experimental results show that the normal system operation, data collection, calculation and save, the error is smaller, you can take advantage of the GSM module TC35i data transmission.
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