文章在分析车牌识别技术发展状况和存在的缺点基础上,提出一种在高速公路联网收费环境下,有效解决车牌识别率低的问题的完整方案,并详细描述系统的结构、功能。此方案通过综合利用网络图像、二值化图像和车牌识别结果,提高车牌比对的成功率。最后,详细分析了利用车牌识别技术扩展出的新应用功能。 Based on the analysis of the development of license plate recognition technology and its shortcomings, this paper proposes a complete solution to the problem of low license plate recognition rate in highway toll collection environment, and describes the structure and function of the system in detail. This program through the comprehensive utilization of network images, binary images and license plate recognition results to improve the license plate alignment success rate. Finally, a detailed analysis of the use of license plate recognition technology extended to new applications.