| With the rapid development of agricultural intelligentization and informatization,precision agriculture has gradually become a hot research issue. Collection of farmland multiple parameter data is a core of precision agriculture, such as moisture and temperature,wind speed and direction, rainfall, etc. At present, facility-agriculture data collection is still using the traditional artificial reading acquisition methods mostly, which leads to a very low frequency and precision and is unable to realize the all-weather requirement. Consequently, a multiple parameter data acquisition system was developed. It based on C/S architecture, and design for data acquisition, analysis and transmission, and this system is not only able to monitor multiple parameter data in real time, but also can manage and share collected data among researchers. Specifically, the main work of this dissertation can be summarized as follows:(1) By analyzing and summarizing the multiple parameter data and the method measuring and processing both in China and abroad. The overall architecture of the system was built in this paper, which could satisfy the function of automating and managing of the multiple parameter data.(2) The data measure subsystem was set up based on the embedded ARM platform, data conversion module and several sensors. The circuit was designed by STM32 microprocessor to acquire data. And the data acquisition module based on S3C2440 microprocessor was designed to store, measure and transmit data to PC management software subsystem.(3) The core function, mechanism and technology are devised for the software subsystem,and the protocol between the lower-end hardware and the upper-end software has been made for real-time data storing, statistics and processing etc. A functional and performance test was conducted, and the test and application results show that the total-system could run stably and meet requirements of the facility-agriculture multiple parameter data collection system. |
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