基于ZigBee的地鐵列車軸溫檢測設(shè)計與實現(xiàn)
[Abstract]:With the increase of the population of the metropolis, the transportation pressure of the ground public facilities is increasing, and the characteristics of the subway, such as high passenger capacity, efficient line planning and running time, are gradually emerging. When the train is running, friction will lead to the increase of the temperature of the axle of the train. When the axle temperature increases by a large extent, it means that the axle may be broken down. If the fault can not be eliminated in time, it is possible to cause the phenomenon of eager axle, and the existing subway train temperature measurement method basically depends on the manual contact measurement of maintenance workers. Due to the limitation of the subway operating environment, it is difficult to install the infrared temperature probe beside the rail in the elevated or tunnel. Therefore, it is of practical significance to monitor the temperature of the subway axle in real time. Combined with ZigBee wireless communication technology, computer technology and sensor network technology, the on-line monitoring system of subway axle temperature is designed in this paper. In this paper, the design of temperature monitoring and sending and receiving of temperature acquisition node is mainly carried out. The temperature acquisition node is used to measure the axle temperature in real time and send the temperature data to the concentrator by CC2530 module. Considering that the temperature collection node should have the characteristics of convenient installation, the node is powered by batteries and the energy consumption of the whole collection node should be as low as possible, if temperature collection is not required, The temperature acquisition node can maintain low power consumption and recover when needed. The controller structure mainly includes CC2530 detection value receiving module and MSP430 MCU temperature value processing module. Through feasibility analysis and demand analysis, this paper designs a temperature acquisition node for measuring the temperature of the axle box, and designs an interface with the concentrator, which can transfer the information to the concentrator for processing. The design is completed and debugged, which can realize the real-time acquisition and transmission of axle temperature, which lays the foundation for the later extension and development of the whole axle temperature acquisition system. In the later performance test, the system meets the expected requirements in terms of data transmission quality, communication stability and node energy consumption.
【學位授予單位】:西南交通大學
【學位級別】:碩士
【學位授予年份】:2017
【分類號】:TN92;U270.7
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