my country's Beidou railway industry comprehensive application demonstration project passed the acceptance. The reporter learned from China Railway Fifth Survey and Design Institute Group Co., Ltd. on the 19th that China's Beidou satellite navigation system major project-Beidou railway industry comprehensive application demonstration project has successfully completed various tasks recently. The establishment of a dual system of Beidou "application standards" in the railway industry has laid the foundation and effectively promoted the deep integration of China's Beidou and China's high-speed rail two "national business cards" national business cards.

In 2020, the national railway operating mileage will reach 150000 kilometers, including 30000 kilometers of high-speed railways, and a "four vertical and four horizontal" high-speed railway main skeleton network will be built. By 2025, the scale of the railway network will reach about 175000 kilometers, including 38000 kilometers of high-speed railways., Basically realize the high-speed railway network with the "eight vertical and eight horizontal" main channels as the skeleton, regional connection lines, and intercity railway supplement. At the same time, with the "going out" strategy, in the next 10-20 years, China will build no less than 20000 kilometers of high-speed railways around the world. In order to maintain the world's leading position, the development of high-speed rail must also increase the use of basic and applied technological innovations. Through the integration of new-generation information technology such as Beidou and high-speed railway technology, the level of high-speed rail intelligent construction, intelligent equipment, and intelligent operation technology will be comprehensively improved. Make railway operations safer and more efficient, greener, more convenient and comfortable, and promote China's high-speed rail comprehensive technological innovation to lead the world.

From ancient times to the present, the Chinese people have attached great importance to the role of the Big Dipper. From 2018 to 2020, Beidou global network will enter a period of intensive launch. In the future, China will build a national integrated positioning and navigation timing (PNT) system with Beidou system as the core, with seamless coverage of air, space and sea, high precision, safety and reliability, and all things connected and all things intelligent. By then, space-time information services will penetrate into every corner of our lives, and Beidou will be everywhere and everywhere.

The comprehensive application demonstration project of Beidou railway industry is jointly undertaken by China Railway Fifth Survey and Design Institute Group Co., Ltd. and Northern Information Control Research Institute. The project is the first batch of comprehensive application demonstration projects of the national Beidou major project for the railway industry. The project focuses on the "1 1 9" construction layout, that is: the construction of a large data center, the construction of a space-time information cloud platform, in 9 major railway business sectors to promote more than 8000 Beidou terminal equipment. The nine major railway business sectors include: railway engineering survey, automatic monitoring system, intelligent site system, location-aware early warning and protection system, railway works inspection, track survey and smoothness detection, "the belt and road initiative" China-Europe train container positioning tracking, high-score remote sensing geological survey, high-speed rail train control system, etc.

Based on Beidou satellite and geographic information system technology, Beijing-Zhangjiakou high-speed railway provides intelligent services for the whole process of construction, operation, scheduling, maintenance and emergency response. The real-time "physical examination" system of the line can connect every bridge, station and rail to the computer through sensors. Whether the parts are aging, whether the subgrade is settled, and whether the lighting is damaged can be clear at a glance. In addition, the high-speed rail perimeter intrusion alarm system, earthquake early warning system, natural disaster monitoring system, etc. will form the intelligent dispatching and command system of the EMU.