为了解决大型室内停车场场地复杂、寻车难等问题,提出了一种基于扩频技术的室内停车场车辆无线定位系统,给出了该方案的工作原理、系统设计和实现方案.该系统通过基于CSS技术和信号到达时间差TOA的定位算法进行车辆定位,方便用户快速找到车辆.实验表明,系统定位结果稳定可靠,定位准确,具有一定的应用前景.%In order to solve the great difficult problem of finding the car and the complex site of large car park,an indoor parking lot's wireless positioning system based on Chirp Spread Spectrum technology is put forward. In this paper,the whole plan is provided,including the working principle,system design and the way to realize it. This system ascertains the position of the car by CSS technology and time of arrival Positioning algorithm in order to improve user'efficiency to find their cars. According to the experimental result,the positioning result is reliable,accurate and stable. What's more, this technology has a certain application prospect.
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