Design And Implementation Of Crop Information Detection System Based On Multi-sensor

With electronics and information technology increasing, China’s traditional agriculturebegan to toward digital and information technology direction and research on various cropsalso increases. Intelligent monitoring on agricultural production become more and moreimportant. The integrated physiological and ecological information crop detection systemwas developed based on the existed physiological and ecological information sensingdetector on crop.Firstly, a system for measuring micro-changes of stem diameter and photosynthetic/breathing/transpiration parameters of crop was added. The node system based on wirelesssensor network was built to measure crop physiological which consists of micro-changes ofstem diameter, and photosynthetic/transpiration/breathing rate. The relay route receivedinformation from sub nodes and sent it to terminal node by wireless way. The terminal nodetransmit data to data acquisition terminal through RS232serial port. In data acquisitionterminal, touch tablet for industry was used as the main part. Combined with technology ofmulti-sensor information fusion, modular programming method was used to realize the datadisplay, storage, and curve.Secondly, the corresponding testing work is done. The experimental results showedthat system for measuring micro-variation of stem diameter is easy to operate andnondestructive to plants, which can also realize continuous monitoring and automaticrecording. The correlation between stem diameter variation and soil moisture changes issignificant, whose correlation coefficient reach up to0.9231, which could contribute todirect irrigation. The experimental results also showed that system for measuringphotosynthetic/breathing/transpiration parameters of crop could reflect cropphotosynthetic rate in one day accurately.Finally the error source of system was analyzed. The method to develop performanceof system was proposed. The function of software and hardware was extended. It has agreat significance to improve the performance of the system parameters of the system.