基于各向异性磁阻传感器的无线车位检测器的设计与实现

发布时间：2018-03-29 01:35

本文选题：各向异性　切入点：CC2530　出处：《江西理工大学》2015年硕士论文

【摘要】：当今社会经济迅猛发展,人们的收入水平大幅增加,生活节奏也越来越快,导致城市里汽车的数量也跟着迅速增加。但是与之配套的交通设施建设增长却相对滞后,随着时间的推移二者的矛盾会更加突出。由此造成的交通事故率也在上升。所以不能依靠传统方法解决交通问题。必须结合现代的智能交通系统ITS来解决这个问题。而车位检测系统是ITS的数据来源。本文设计了一种基于各向异性磁阻传感器的无线车位检测器,探讨了利用磁阻传感器进行车位检测的原理和车位检测器和网关之间使用Zig Bee无线网络技术来通信,验证了系统的稳定性、低功耗。实现了车位检测器各模块的功能。完成数据的采集、处理,传输。具体所做的工作如下:(1)对当前市场现有的检测方法分析比较,提出了基于各向异性磁阻传感器的无线车位检测器,并介绍了当前基于各向异性磁阻车辆检测的研究状况。(2)以微控制器CC2530和磁阻传感器HMC5883L设计了硬件电路,并解释说各硬件模块的具体计算参数。(3)根据车辆进出车位磁阻传感器采集的数据分析,提出了依据模的变化率的车位检测算法。(4)嵌入式软件的设计,根据系统各个功能,实现了相应应用程序模块的设计,并给出了相应程序流程图。该车位检测系统已经初步实现了所有功能,但是距离正真投入市场使用还有很大的差距,还有很多可以改进的地方,还需要继续研究和完善。
[Abstract]:With the rapid development of social economy, people's income level and life rhythm are increasing rapidly, which leads to a rapid increase in the number of cars in the city. However, the construction of transportation facilities is lagging behind. As time goes on, the conflict between the two becomes more prominent. The resulting traffic accident rate is also on the rise. Therefore, we cannot rely on traditional methods to solve the traffic problem. We must combine the modern intelligent transportation system (ITS) to solve this problem. In this paper, a wireless parking detector based on anisotropic magnetoresistive sensor is designed. The principle of using magnetoresistive sensors to detect parking spaces and the communication between parking space detectors and gateways using Zig Bee wireless network technology are discussed. The stability of the system is verified. Low power consumption. Realizes the function of each module of parking space detector. Completes the data collection, processing, transmission. The specific work done is as follows: 1) Analysis and comparison of the existing detection methods in the current market. A wireless parking position detector based on anisotropic magnetoresistive sensor is proposed, and the current research status of vehicle detection based on anisotropic magnetoresistive sensor is introduced. The hardware circuit is designed by microcontroller CC2530 and magnetoresistive sensor HMC5883L. According to the analysis of the data collected by the magnetoresistive sensor in and out of the parking space, this paper presents the design of the embedded software based on the changing rate of the mode-changing rate of the parking space, according to the various functions of the system. The design of the corresponding application program module is realized, and the corresponding program flow chart is given. All the functions of the parking space detection system have been preliminarily realized, but there is still a long way to go before it can be put into use in the market. There are still many areas that can be improved, and need to continue to study and improve.
【学位授予单位】：江西理工大学
【学位级别】：硕士
【学位授予年份】：2015
【分类号】：U495;TP212

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