摘要
为解决高速公路监控图像与信道组织内数据增量值不匹配的问题,从而提升监控信息的实时传输速率,设计高速公路监控网络的可补偿信道增益系统。在可调式VGA结构体系中,连接增益放大器、峰值检测器与视频车辆检测器,完成可补偿信道增益系统的硬件设计。建立Flex服务模式,并以此为基础,定义完整的Access数据库表,实现高速公路监控网络中的GIS数据准备,联合相关硬件结构,完成高速公路监控网络可补偿信道增益系统的设计。实验结果表明,该系统可将监控图像补偿残差与信道组织内数据增量之间的差值控制在0~2.5×10^(9) bit的数值范围内,能够有效解决图像与增量值不匹配的问题,符合提升高速公路监控信息实时传输速率的实际应用需求。
In order to solve the problem that the expressway monitoring image does not match the incremental value of the data in the channel organization,so as to improve the real⁃time transmission rate of monitoring information,a compensatable channel gain system of expressway monitoring network is designed.In the adjustable VGA architecture,the gain amplifier,peak detector and video vehicle detector are connected to complete the hardware design of the system which can compensate the channel gain.Flex service mode is established,and on this basis,a complete Access database table is defined,which realizes the preparation of GIS data in expressway monitoring network,and combines with related hardware structures to complete the design of the compensated channel gain system of expressway monitoring network.The experimental results show that the difference between the compensation residual of the monitoring image and the data increment in the channel organization can be controlled within the numerical range of 0~2.5×10^(9) bit,the system can effectively solve the problem of mismatch between the image and the increment value and meet the practical application requirements of improving the real⁃time transmission rate of expressway monitoring information.
作者
于桂洋
姚红云
YU Guiyang;YAO Hongyun(Chongqing Jiaotong University Transportation College,Chongqing 400074,China)
出处
《电子设计工程》
2024年第12期17-20,26,共5页
Electronic Design Engineering
基金
国家自然科学基金(51008321)。
作者简介
于桂洋(1997-),女,山东日照人,硕士。研究方向:高速公路交通安全。
