Embedded detection system of train images

Abstract

The invention discloses an embedded detection system of train images, comprising a gigabit Ethernet camera, a gigabit Ethernet interface circuit, a fast Ethernet interface circuit, a data acquisition and control circuit, an image compression circuit, a serial advanced technology attachment (SATA), an SATA interface circuit, a train coming / going detector, a recommend standard (RS) 232 interface circuit, a trigger control panel and a server, wherein the data acquisition and control circuit is respectively connected with the gigabit Ethernet camera, the server, the SATA and the train coming / going detector by the gigabit Ethernet interface circuit, the fast Ethernet interface circuit, the SATA interface circuit and the RS 232 interface circuit; the trigger control panel is connected with the data acquisition and control circuit and the train coming / going detector simultaneously; and the image compression circuit is connected with the data acquisition and control circuit and the SATA interface circuit simultaneously. Compared with a traditional detection system of the train images, the embedded detection system reduces the complexity, the cost, the volume and the power consumption, improves the stability, and is provided with good robustness.

Description

technical field [0001] The invention belongs to the technical field of electronic monitoring, in particular to an embedded train image detection system. Background technique [0002] With the development of my country's railway construction in the direction of high speed, the traditional method of relying on train inspectors to manually inspect various parts of trains with traditional manual tools such as checkpoint hammers, lanterns and wrenches can no longer meet the requirements of railway transportation for daily train technical inspections. The new generation of train image detection system uses high-speed camera technology to quickly capture various parts of the running train, compresses and stores the captured images in the computer, and train inspectors can view the camera through the computer in the train inspection room with a better environment. The captured pictures are used to detect the safety status of the train. [0003] Most of the cameras currently used in...

AI Technical Summary

Problems solved by technology

Since the maximum transmission rate of the IEEE 1394a interface is 400Mbps and the length of the transmission cable is 4.5 meters, the current train image detection system has the following main problems: (1) Due to the limited transmission rate of the IEEE 1394a interface, the resolution of the camera and the frame rate are limited, which cannot meet the needs of high-speed trains to obtain clearer photos; (2) the 1394 interface is used to transmit data, which is easily interfered by various factors such as electromagnetics during the transmission process. In addition, due to the limited length of the transmission cable, in In the application of train image detection, it is necessary to increase the relay according to the actual transmission distance, which is more likely to cause the camera to be disconnected and to obtain incomplete images; (3) because the current image acquisition and processing is based on the industrial computer and the Windows operating system, there is a complex system , large size, susceptible to virus infection, and prone to problems when working in a harsh environment for a long time

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