Zhongxin Jingwei January 12, 2022 Spring Festival is approaching, today's Beijing-Shanghai high-speed rail has an "AI sentinel", which is by SenseTime and China Railway Electrification Bureau Group Beijing-Shanghai High-speed Rail Vascular Company, China Railway Electrochemical Institute to create a "starry sky" 4C (catenary suspension status monitoring device) intelligent analysis system, which uses leading AI technology to help high-speed rail catenary intelligent inspection, and jointly guard the safety of train operation. Recently, with its successful practice in this field, SenseTime was selected as APEC's "China Digital Economy Industry Demonstration Sample 50", creating a Chinese sample for AI to accelerate the digital transformation of traditional industries.
The Beijing-Shanghai high-speed railway is a major transportation artery connecting the north and south, with a total length of 1318 kilometers, safely transporting more than 1.35 billion passengers since its opening in 2011, with a cumulative journey of more than 1.58 billion kilometers. In order to ensure the safe operation of the Beijing-Shanghai high-speed railway, during the "skylight time" of high-speed rail maintenance from 0:00 to 4:30 a.m. every day, high-speed rail maintenance personnel need to overhaul the high-speed rail catenary.
Initially, maintenance personnel had to climb up the catenary network along the high-speed rail track, holding a flashlight, checking for potential hidden dangers one by one, and dealing with them one by one. It takes 3 years to complete a full-line manual inspection, and new hidden dangers may have emerged before the inspection cycle is over. Later, with the help of 4C catenary detection vehicles, taking pictures instead of manual inspections, the detection time was shortened to a quarter, but it was still necessary to rely on pure manual methods to complete the analysis and judgment of each photo.
In 2017, SenseTime began to explore the application of AI technology to the field of high-speed rail catenary detection. After two years of preliminary research, the scientific research project was officially launched in May 2019, and breakthroughs have been made since then. Today, the time to complete a routine inspection has been shortened to just 4 days, and the efficiency has increased by more than 20 times. Catenary detection is also difficult from one "eye" to a successful overview.
Li Feng, deputy chief engineer of China Railway Electrochemical Institute and head of the design of the Beijing-Shanghai high-speed rail catenary network, said: "The advent of the 'starry sky' system allows operation and maintenance personnel working under night to more effectively use 'skylight time' for efficient and accurate maintenance, and better protect the safety of passengers under another 'starry sky'." At the same time, AI technology will empower high-speed rail catenary maintenance, help China's high-speed rail to implement predictive maintenance, improve the quality of high-speed rail, demonstrate the creativity and competitiveness of Chinese enterprises, and solidly promote China's high-speed rail going global strategy. ”
"China Digital Economy Industry Demonstration Sample 50" is a chinese sample of digital economy that leads scientific and technological innovation, practices digital inclusion and highlights industrial responsibility by focusing on the "14th Five-Year Plan" digital China strategy of APEC China Business Council and APEC China Digital Economy Committee, which comprehensively considers the quality of development, technological innovation, compliance and governance, social responsibility and influence of enterprises.
AI increases detection efficiency by 20 times
According to statistics, the 4C catenary detection vehicle of the Beijing-Shanghai high-speed railway collects up to 3 million pictures of equipment every quarter. If each person needs to determine 8,000 pictures per day, it will take more than 20 days to complete the overtime work. In the face of such massive data, long manual analysis cycle, large differences in judgment standards, and quality assurance have long plagued the detection of high-speed rail catenary networks.
After applying the "Starry Sky" intelligent analysis system based on SenseTime's "Industrial Engine", with the help of AI intelligent analysis, only 2 technicians can complete the analysis of the same 3 million pictures in 10 days, and the efficiency is increased by 20 times.
At the same time, the application of the "Starry Sky" system can also greatly reduce the dependence of 4C detection on personnel experience, reduce the uncertainty caused by different manual judgment standards, and allow new employees to make accurate analysis and judgment like experts.
Behind the powerful "Starry Sky" intelligent analysis system, it is inseparable from the high efficiency, automation and intensive algorithm production capacity of SenseCore's LARGE AI device, and SenseTime's "industrial engine" has realized the mass production of various defect detection algorithms. This gives the high-speed rail catenary inspection a real "golden eye of fire".
Solve the detection problem and fill the gap in the industry
From overhead cable equipment, support structures to suspension devices, the "Starry Sky" intelligent analysis system can automatically identify thousands of defects in hundreds of components, including bolt nuts, insulators, hanging strings, opening pins, bearing cables, contact lines and so on. For example, in the face of the problem of extreme lack of samples such as string breaks, by using the mixed visual algorithm mode of traditional algorithms and deep learning, SenseTime has increased the detection rate from 73% to 95.7%, which has played an important role in the work and greatly improved the efficiency of manual review.
With the deepening application of AI technology in the "4C detection operation", the system also further opens up the data closed loop of "training-application-optimization", so that the accuracy of the algorithm is continuously optimized and the detection effect is continuously improved. Up to now, the "Starry Sky" intelligent analysis system has detected more than 30,000 kilometers of high-speed rail nationwide, with more than 48 million pictures and more than 1.3 billion parts.
Li Xiaoyu, head of the "Starry Sky" system of the China Railway Electrification Bureau, said that with the continuous accumulation of data, AI will also help high-speed rail inspections to explore predictive maintenance. Through "spatial positioning" and "one pole and one gear" and other methods, the system can accurately locate the pole number of each pillar, establish a data file, "when the part fails, we can trace whether the part has a precursor to the imminent failure and change trend, by summarizing experience, we may predict the possible failure in advance, and eliminate the hidden danger in advance." ”
With the "starry sky" intelligent detection system playing an increasingly important role, the innovative significance of AI technology in the field of high-speed rail catenary detection has become more and more obvious, which not only improves the intelligent level and detection efficiency of catenary vasculars, but also creates a precedent for China's railway power supply system to identify catenary parts defects through 4C image intelligent analysis, filling the gap in the field of 4C intelligent detection and analysis in China.
In 2021, the "Starry Sky" intelligent analysis system has completed the comparative analysis of 4C image recognition of 6 railway bureaus and 13 lines of catenary network organized by the Ministry of Industry and Electricity of the State Railway Group, achieved outstanding results, and realized the automatic detection of catenary defects. In the future, with the continuous improvement of digital and intelligent demand, SenseTime will continue to deepen original technological innovation, provide strong support for the rapid development of China's railway industry, and promote the empowerment of hundreds of industries with AI technology.
About SenseTime
As an artificial intelligence software company, SenseTime takes "adhering to originality and letting AI lead human progress" as its mission, "using artificial intelligence to connect the physical world and the digital world, promoting the sustainable development of social productivity, and bringing people a better combination of virtual and real life experience" as its vision, aiming to continue to lead the frontier research of artificial intelligence, continue to build a more expansive and inclusive artificial intelligence software platform, promote economic, social and human development, and continue to attract and cultivate top talents to jointly shape the future.
SenseTime has deep academic accumulation and long-term investment in original technology research, and continuously enhances industry-leading full-stack artificial intelligence capabilities, covering key technology areas such as perception intelligence, decision intelligence, intelligent content generation and intelligent content enhancement, as well as key capabilities including AI chips, AI sensors and AI computing infrastructure. In addition, SenseTime forward-looking to build a new artificial intelligence infrastructure - SenseCore AI device, through computing power, algorithms and platforms, significantly reduce the price of artificial intelligence production factors, to achieve high efficiency, low cost, large-scale AI innovation and landing, and then open up the business value closed loop, solve long-tail application problems, and promote artificial intelligence into the stage of industrial development. SenseTime's business covers four major sectors: smart business, smart city, smart life and smart car, and the related products and solutions are well received by customers and partners.
SenseTime advocates a "development" ai ethics and actively participates in the development of industry, national and international standards on data security, privacy protection, AI ethics and sustainable AI. As of June 30, 2021, SenseTime has participated in the development of more than 80 industry, national and international standards, working closely with a number of national and multilateral institutions on the sustainable and ethical development of AI. SenseTime's Ethical Code for SUSTAINABLE AI Development, selected by the United Nations Ai Strategic Resource Guide and published in June 2021, is the only AI company in Asia to receive this award.
SenseTime now has offices in Hong Kong, Shanghai, Beijing, Shenzhen, Chengdu, Hangzhou, Nanping, Qingdao, Sanya, Xi'an, Taipei, Macau, Kyoto, Tokyo, Singapore, Riyadh, Abu Dhabi, Dubai, Kuala Lumpur, Seoul and other places. In addition, SenseTime has operations in Thailand, Indonesia, the Philippines and other countries. (Zhongxin Jingwei APP)
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