27
2022
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09
The application trend of industrial computer in expressway electromechanical system
author:
With the continuous increase of the number of domestic expressways and the continuous development of computer information technology, the use of industrial computer to automatically control expressways has become the current application trend. The electromechanical system of the expressway is divided into six systems, including monitoring system, communication system, toll collection system, low-voltage power supply and distribution system, and lighting system, including monitoring, toll collection, and communication systems. Coordinated development.
1. The application of industrial computer in the charging system.
The highway toll collection system has gone through three periods: manual toll collection. Computer charges. ETC. IPCs are only used during the computer charging period, and are mainly 19 inches wide. The 4U high general standard host is large in size. Due to the small space and large size of the toll booth, some resources are idle, so that industrial computer manufacturers can launch smaller industrial computers according to market demand, which not only greatly reduces the volume, but also further improves the resource utilization. utilization. If the application requirements of the industrial computer tend to be miniaturized during the computer charging period, it will tend to be integrated during the ETC period. Industrialization, industrial computer, lane control and other equipment will be integrated, but since there is currently no unified standard for domestic ETC, system integrators will integrate with each other. Incompatible, but if the relevant state departments can formulate relevant industry norms as soon as possible. After the interface standard, the national roads will be integrated into a network, and a cartoon will truly realize toll charges around the world.
2. The application of industrial computer in monitoring system.
At present, highway monitoring is mainly divided into toll monitoring and traffic monitoring. There are three modes: Analog Video CCTV. Digital DVR. Network DVR. Since only CCTV and video recorders are used for monitoring and recording during CCTV surveillance, it is completely manual. With the development and application of digital video technology, in the digital DVR era, integrators can use industrial computers stably for a long time, with strong scalability (such as multiple hard disks, multiple ISA/PCI resources, etc.). Video capture card and video compression card form a DVR system. When vehicle detection detects the need to capture images, the system can automatically capture images and video processing. At the same time, the types of industrial computers are also from large to small, but the monitoring in this period is limited to the monitoring of toll booths (kiosks) and other monitoring or information systems on the entire expressway. With the development of network technology and the application and requirements of ITS, industrial computer manufacturers provide high-performance LAN by integrating CPU cards, enabling system integrators to share and make full use of all resource systems through the network, so that the information release system will collect the The traffic information data is sent to the information terminal to guide and control the traffic flow in real time, and further improve the road traffic capacity.
It can be seen from the application and development of industrial computers in toll collection systems and monitoring systems that the application trend of industrial computers in expressway electromechanical systems is gradually decreasing, with the narrowing of the industry gap. Unified standards, and eventually some products will be integrated.