智能车位管理系统研究及应用

发布时间：2018-04-29 21:32

本文选题：车辆监测 + 地磁传感器　；参考：《长安大学》2014年硕士论文

【摘要】：中国经济的高速发展使我国私家车数量迅速增长。道路拥堵、泊车困难的问题也成为了制约城市进一步发展最大的阻碍，如何提高停车位的使用率以解决泊车难的情况是一个亟需解决的问题。结合这一情况提出基于地磁传感器的智能车位管理系统的设计方法。系统的硬件由基于地磁传感器的无线数据采集节点、数据中继节点、数据集中器及上位机组成，数据采集终端采集停车位地磁场的信号；数据中继节点将接收到的数据采集终端的数据上传至数据集中器，再通过数据集中器通过串口发送至上位机，，最终通过上位机对车位信息进行管理及显示。数据采集终端采用低功耗设计，利用电池供电，通过选用美国德州仪器（TI）公司的低功耗无线数据传输模块CC2500及超低功耗MSP430单片机，地磁传感器使用Honeywell公司的HMC5883L低功耗地磁传感器，在满足系统工作的同时能最大限度的降低系统的功耗。通过测试，系统功耗约为0.7mW，使用常规3.7V锂亚电池供电，即可让系统工作4年以上。通过模拟测试，对停车场内常见的三种停车情况进行分析，可以得知，地磁传感器均可以有效的将车位的占用情况判断出来，检测准确率较高，能达到97%以上。系统的实际测试结果表明，基于地磁传感器的智能车位管理系统能够满足停车场车位空闲状态实时检测的需要。
[Abstract]:The rapid development of Chinese economy makes the number of private cars increase rapidly. The problem of road congestion and parking difficulties has become the biggest obstacle to the further development of the city. How to improve the utilization rate of parking spaces to solve the parking difficulties is a problem that needs to be solved. The design method of intelligent parking space management system based on geomagnetic sensor is presented. The hardware of the system is composed of wireless data acquisition node based on geomagnetic sensor, data relay node, data concentrator and upper computer. The data acquisition terminal collects the signal of geomagnetic field of parking space. The data relay node uploads the data from the received data acquisition terminal to the data concentrator, then sends the data to the upper computer through the serial port through the data concentrator, and finally manages and displays the parking space information through the upper computer. The data acquisition terminal uses low power design, battery power supply, low power wireless data transmission module CC2500 and ultra-low power MSP430 single chip microcomputer. The geomagnetic sensor uses Honeywell's HMC5883L low-power geomagnetic sensor, which can reduce the power consumption of the system at the same time. The test results show that the power consumption of the system is about 0.7 MW, and the system can be operated for more than 4 years by using the conventional 3.7V lithium subbattery. Through the simulation test and the analysis of the three common parking conditions in the parking lot, it can be found that the geomagnetic sensor can effectively judge the occupation of the parking space, and the detection accuracy is high, which can reach more than 97%. The practical test results show that the intelligent parking space management system based on geomagnetic sensor can meet the need of real-time detection of parking space idle state.
【学位授予单位】：长安大学
【学位级别】：硕士
【学位授予年份】：2014
【分类号】：U495;U491.7

【共引文献】