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Research and Design of Granary Monitoring System Based on ZigBee

Author: ChenHongYan
Tutor: FeiLing
School: West China University
Course: Mechanical and Electronic Engineering
Keywords: ZigBee Protocol stack Sensor Monitoring system
CLC: TP277
Type: Master's thesis
Year: 2011
Downloads: 160
Quote: 1
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Abstract


Modern society, natural disasters (earthquakes , droughts , floods , etc.) and man-made disasters (wars ) frequent food strategic reserve has become a big problem for the people's livelihood , and at this stage the monitoring of food stored technically , there are a lot of problems , resulting in a lot of unnecessary losses. Food stored procedure can be good enough monitoring , this paper combined with modern sensor technology and wireless network technology designed to make a ZigBee-based wireless the granaries monitoring system . By analyzing the development status of China 's granary monitoring system to study the environmental needs of the food in storage , and based on the dispersion of China's grain reserves , the local characteristics of the structural framework of the wireless the granaries monitoring system , the system can be effective scattered granary unified monitoring , in order to achieve effective supervision of the overall grain reserves . The system is divided into three layers : the overall design of data acquisition and control of the underlying layer , the core layer of the middle and upper user applications operating layer . Including a microcontroller - based sensor data acquisition and fan control on the ground floor , the temperature sensor DS18B20 and humidity sensor SHT11 temperature and humidity data acquisition , and data sent by the CC2430 wireless chip to the middle layer ; intermediate layer to the core layer based on S3C2410 , the main task of this layer is to receive the integration of the underlying data , and then transmitted through the internet to the the upper user operation layer and the upper control commands through zigbee transmission to the ground floor ; upper layer for user operation , the layer to communicate with each other through the internet and the middle layer by upper PC, the application can be effective monitoring of the environmental parameters of various the granaries monitoring point and control commands issued to fan . The main work of this paper , including the bottom of the system 's hardware and software design , analysis of zigbee technology and IEEE802.15.4 standard transmission protocol , the middle layer of the network transmission , as well as the upper application design . Through this study , we propose the concept of centralized monitoring of various local granaries , the technical requirements analysis , can effectively implement the the dispersion of granary data acquisition , centralized monitoring and control , and play a positive role in development of the granary monitoring system .

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CLC: > Industrial Technology > Automation technology,computer technology > Automation technology and equipment > Automation systems > Monitoring, alarm,fault diagnosis system
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