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Control method of rail traffic infrared video frequency transmission system

A technology for video transmission system and rail transit, which is applied to TV systems adapted to optical transmission, cable transmission adaptation, transportation and packaging, etc. It can solve problems such as low reliability, high requirements, and complex technology, and achieve simple installation and commissioning and work. Reliable, System-Simple Effects

Inactive Publication Date: 2004-10-06
上海神剑铁路通信信号有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

It works as figure 1 , figure 2 As shown, it installs the infrared switching transmitting device in the cab of the locomotive. The field of view and working distance of the infrared switching transmitting device and the infrared switching receiving device are larger than the infrared video transmission working area, and two sets of optical systems are needed to cooperate. Therefore, there are more troubles: the technology is more complicated, the requirements are relatively high, and the equipment on the locomotive is many and complicated, so the price is high and the reliability is low.

Method used

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  • Control method of rail traffic infrared video frequency transmission system
  • Control method of rail traffic infrared video frequency transmission system
  • Control method of rail traffic infrared video frequency transmission system

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0038] The control method of the infrared video transmission system when the track is a straight line:

[0039] Such as Figure 6 Shown is the working principle diagram of the infrared video transmission system when the track is a straight line. The camera is installed on the platform; the image synthesizer and modulator are installed in the communication room; the infrared video receiver is installed behind the windshield of the locomotive cab. It is installed towards the direction of train movement. The monitor is installed on the left side of the bridge, and the infrared video transmitter needs to be installed on the pillars or walls beside the tracks at both ends of the platform. The installation height should be the same as that of the infrared video receiver on the locomotive, about 2 meters above, to prevent being blocked by people , detector 1 is installed 100 meters before the parking position of the platform, and detector 2 is installed 100 meters behind the parking...

Embodiment 2

[0041] The control method of the infrared video transmission system when the track is a curve:

[0042] Such as Figure 7 As shown, it is the working principle diagram of the infrared video transmission system when the track is a curve. N detectors are installed beside the curved track. The first detector is responsible for starting the first infrared video transmitter, and the second detector is responsible for The shutdown of the first infrared transmitter and the startup of the second infrared transmitter, and so on, the Nth detector is responsible for the shutdown of the Nth infrared video transmitter. The distance between the detectors depends on the size of the arc, the more curved the arc, the denser the detectors are packed. The locomotive detector makes the infrared video transmitter be in the relay working state like this. Other methods are the same as in Example 1.

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PUM

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Abstract

A control method for the infrared video transmission system of track traffic features that two locomotive detectors are respectively arranged at the different positions close to track. When a locomotive is running through the first detector, the detector sends a start signal to controller and the infrared video emitter transmits video signal to the display in driver cab. When the locamotive is running through the second detector, the detector sens a stop signal to control and the infrared video emitter is in wait state and no image is displayed on the screen in driver cab.

Description

technical field [0001] The invention relates to a control method for a rail transit infrared video transmission system, which is used for transmitting real-time information of video images and belongs to the technical field of infrared video transmission. Background technique [0002] Since the driver needs to see the image of the situation on the platform when the driver is 100m before and after the parking position of the platform, to ensure the safety of passengers getting on and off the bus and driving safety, the infrared video image transmission system is to transfer the video images of the station, crossing, platform or other target objects. , use the infrared video transmitter that is safe for human eyes to send to the infrared video receiver on the car, after photoelectric reception and demodulation, it will be displayed on the monitor in the locomotive, and the driver can see the front and rear of the platform parking position in the cab The image you need to see a...

Claims

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Application Information

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IPC IPC(8): B61L13/00H01H47/22H04N7/22
Inventor 范志强程跃华樊海峰付金生李桂珍
Owner 上海神剑铁路通信信号有限公司