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The Design and Implementation of Wireless Granary Monitoring System Based on Wireless Sensor Network

Author: NiuYuQing
Tutor: ShiWei
School: Taiyuan University of Technology
Course: Circuits and Systems
Keywords: Grain Monitoring Low power consumption Wireless sensor networks Communication Protocol
CLC: TP277
Type: Master's thesis
Year: 2011
Downloads: 203
Quote: 4
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Abstract

The food is the basis of the national economy, food security related to the healthy development of the national economy and social stability. Food grain in order to effectively monitor the storage and management of grain storage managers need to regularly check the food stocks of grain temperature, humidity, etc., to prevent temperature, humidity, and other factors led to food mildew and pests and other problems . 20 In the late 1980s, as computer technology and the development of electronic technology, the emergence of Monitor System for Grain, Grain modern monitoring systems can take advantage of distributed sensors and grain silos to store information about the physical parameters can be monitored, and data storage In the PC, not only saves the granary management manual labor, but also on grain condition data for effective management. Most of the existing monitoring system Grain system nodes using the cable for the power supply and the use of the collected data transmission cable, power cable-based systems that have inherent defects, such as wiring complexity, vulnerable to lightning, the high cost of installation and maintenance , vulnerable to destruction. In recent years, as wireless sensor networks WSN (wireless sensor network) technology, the rise of new technologies in wireless sensor networks gradually began to be applied to all aspects of life, will be applied to traditional wireless sensor network data monitoring areas of a wireless sensor network important application areas, based on wireless sensor networks Wireless Monitor System for Grain battery-powered, wireless transmission of data, not only solved the food situation has been plagued cable wiring and lightning monitoring system problems, and reducing construction Monitor System for Grain difficulty working effectively enhance the stability of the system. This paper describes the current food situation monitoring system development status and the concept of wireless sensor networks, and then introduced based on wireless sensor networks Wireless Monitor System for Grain overall hardware and software design and communication protocol design, and finally a brief introduction of the system on-site installation After the test case. Goal of this paper is to design and implement a low-power wireless Monitor System for Grain. Hardware design, in order to meet the network nodes with low power requirements, using a low-power microprocessor C8051F920, and uses the communication distance and RF chip SI4432 simplify system design in order to achieve the purpose. To ensure effective communication of each node in reference to the IEEE802.15.4 and other wireless networks for the development of communication protocols, the application environment for the grain field designed a simple and reliable communication protocol in order to ensure the communication network nodes , collected granary temperature and humidity data upload first bit machine preservation, and finally uploaded to the web server for the parent department queries. The entire wireless sensor network nodes are battery-powered, in order to reduce system power consumption, the whole network operates in a low-power mode, using four AA alkaline batteries can protect the system node 3 to 5 years of continuous operation. Wireless sensor networks based on wireless Grain Monitoring System Design and Implementation, has initially solved the food situation in recent years has been trying to solve within the area of ??monitoring, but not well resolved, finally, through the grain field tests show that the system The system complies with the requirements of the food sector to meet grain demand for grain condition monitoring, has good application prospects.

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