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A novel of embedded storage and transportation status monitoring system and sampling terminal node based on ZigBee and embedded technology is designed to acquisition the status parameters of the special equipment remotely in this paper. Wireless transmission network is established by ZigBee technology to transfer monitoring data and the data can be processed rapidly and displayed in real-time by ARM microprocessor. The system has the characteristics of low power consumption, high stability, high flexibility and expansibility. Introduction Status monitoring technology is the use of modern sensor technology, computer technology to monitor the operational status of the internal and external environment and some of the key features of parameters of special equipment. The monitoring system can monitor parameter status values of the special equipment and storage the monitoring data to assess the health and provide alarms and troubleshooting information when necessary . In the data transmission mode, the current storage and transportation status monitoring system is basically connected by cable. However, when the line erection difficulties, corrosive, explosive, and the acquisition target are moving, wired applications will be limited. In this case, the use of wireless transmitted is an alternative pattern. The ZigBee wireless network which has grate network capacity, low power consumption and long battery life is more suitable for wireless status monitoring system . Therefore, this paper design the embedded status monitoring system for special equipment storage and transportation by ZigBee technology, compared to traditional embedded storage and transportation status monitoring system, the biggest difference is the intelligence structure, which supports wireless sensor networks and the collecting data toward the direction of high real-time, multi-parameter, high-precision, while data storage become large capacity, more miniaturization and portable, and the development of multi-communication mode and long-distance for data transmission. Design of the Status Monitoring System Design of Hardware Framework of System. The status monitoring system can be roughly divided into four part, they are the terminal monitoring node, routing nodes, ZigBee coordinator and handheld monitoring center. Terminal monitoring node ,which is composed of ZigBee wireless transmission module and monitoring sensor module, is responsible for sampling the data of temperature, humidity, acceleration, pressure, etc. After data collection, format conversion, the data will be transferred between ZigBee collection node and the ZigBee coordinator node. Routers are used to search for the optimal routing path, forwarding data, and as a reference node in positioning system. ZigBee coordinator is responsible for establishing, maintaining, and managing a wireless network, and collecting all the data from the terminal equipment, then, two-way communication with the handheld monitoring center through the serial port .The user can observe the monitoring of data through handheld monitoring device in real-time. Hardware circuit which is composed of the wireless sensor node, the coordinator node and control unit, is shown in Fig. 1. 4th International Conference on Machinery, Materials and Computing Technology (ICMMCT 2016) © 2016. The authors Published by Atlantis Press 1040 |
