The invention discloses a passive laser kilometer post which is used in cooperation with a vehicle-mounted laser positioning terminal. The vehicle-mounted laser positioning terminal is mounted on a rail transit vehicle; and the plurality of passive laser kilometer posts are distributed and mounted on the ground along the running track of the track traffic vehicle at an interval of 1km in pairs. According to the characteristics of wavelengths and the like of light which is allowed to pass through the reflected light modulation sheets on the passive laser kilometer posts, the light is arranged strictly according to a certain rule, and the wavelengths of the light which is allowed to pass through the reflected light modulation sheets on any two passive laser kilometer posts in a cycle arranged are different. The passive laser kilometer post is composed of a corner reflector and a reflected light modulation sheet. Accurate positioning with the train is realized by reflecting the laser signal emitted by the vehicle-mounted laser positioning terminal, a power supply is not needed, and the intensity of the reflected signal is not influenced by the environment. The narrow-band filter in front of the corner reflector modulates the same laser signal emitted by the vehicle-mounted laser positioning terminal into a laser signal with a specific wavelength, specific kilometer post information can be fed back at a specific position, and positioning errors under special conditions are avoided.
本发明公开一种无源激光公里标,与车载激光定位终端搭配使用;车载激光定位终端安装在轨道交通车上;多个无源激光公里标两两相隔1km分布安装在轨道交通车运行轨道沿线地面上。根据无源激光公里标上反射光调制片所允许通过的光的波长等特性进行排列,严格遵循一定规律,且排列一个循环之内任何两个无源激光公里标上的反射光调制片所允许通过的光的波长不能相同。无源激光公里标由角反射器和反射光调制片组成。本发明通过反射车载激光定位终端发射的激光信号实现与列车之间的精确定位,不需要电源,且反射信号强度不会受环境影响。角反射器前的窄带滤光将车载激光定位终端发射的同一激光信号调制成特定波长的激光信号,能在特定的位置反馈特定的公里标信息,避免特殊情况下的定位错误。
Passive laser kilometer post
无源激光公里标
2024-03-22
Patent
Elektronische Ressource
Chinesisch
Europäisches Patentamt | 2016
|Kilometer für Kilometer, Jahr für Jahr
IuD Bahn | 2003
|IuD Bahn | 2005
|SLUB | 2020
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