| Soil moisture on the growth of crops has an important effect, is to create the raw materials of organic matter; the amount of water affect crop photosynthesis, affecting crops in the absorption and transport of nutrients to support and maintain the plant cell and tissue tension, so that plant plant shoot straight; water is for the largest component of the object itself, it is to plant transpiration, to regulate body temperature and the physiological processes of plants; water also affected the flowering plants, pollination, fertilization and pest occurrence and development, selection of suitable humidity, can make plants grow better, so soil moisture should have strict control. With modern measurement technology management practices and the rapid development of modern science and technology, soil moisture in real time, online detection is scientific research, agricultural production and measurement of face detection technology sector issues, both called for the accuracy of soil moisture, uniformity, volatility measures for scientific and impartial testing, while the measured field required to achieve rapid, standardized real-time detection of the completion of the work. Modern microelectronics and computer technology will study soil moisture tester to a new stage. Intelligent, high-precision, multi-type, multi-function instrument for soil moisture detection is imperative.Papers on soil moisture measuring instrument for the background, significance and current development status were analyzed, combined with our national conditions subject research goal is to achieve a portable wireless data soil moisture detector. The whole system is divided into master and slave, the slave will be collected soil moisture data were processed and stored in memory and then sent by wireless transmission module to the host, the host receive data through wireless receiver module, not only in the LCD screen can display real-time and historical data, the data can be transmitted through the USB port to the PC.System by selecting the appropriate components to improve system stability and accuracy of data, the first debugging of each module separately and then integrated the various modules of the overall system debugging, the properties of line with expectations. System functions to achieve under the actual environment in the orchard after the wireless transmission distance Jinxing experiments and through advanced equipment and Chuan Tong drying method of the comparative test pair of the instrument's accuracy was verified by Shu Ju, so the system Fuge market demand, there is very competitive. |
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