With the Spring Festival transportation approaching in 2022, today’s Beijing-Shanghai High Speed Railway Co.Ltd(601816) has an “Ai outpost”, which is the “star sky” 4C (catenary suspension state monitoring device) intelligent analysis system built by Shangtang technology, China Railway Electrification Bureau Group Beijing-Shanghai High Speed Railway Co.Ltd(601816) maintenance company and China Railway Electrification Institute based on Shangtang’s “industrial engine”, which helps the intelligent inspection of high-speed railway catenary with leading AI technology, Jointly guard the safety of train operation. Recently, with its successful practice in this field, Shangtang technology was selected into the APEC “China digital economy industry demonstration sample 50” to create a Chinese sample for AI to accelerate the digital transformation of traditional industries.
Beijing-Shanghai High Speed Railway Co.Ltd(601816) is a major traffic artery connecting the north and the south, with a total length of 1318 kilometers. Since its opening in 2011, it has safely transported more than 1.35 billion passengers and a cumulative journey of more than 1.58 billion kilometers. In order to ensure the safe operation of Beijing-Shanghai High Speed Railway Co.Ltd(601816) , during the “skylight time” of high-speed rail maintenance from 0:00 to 4:30 every morning, high-speed rail maintenance personnel need to repair the high-speed rail catenary.
Initially, the maintenance personnel should climb the OCS along the high-speed rail with a flashlight, check the potential hazards one by one and deal with them one by one. It takes 3 years to complete a manual patrol inspection of the whole line, and new hidden dangers may appear before the end of a patrol inspection cycle. Later, with the help of 4C catenary inspection vehicle, taking photos instead of manual inspection, the inspection time was shortened to one quarter, but it still needs to rely on pure manual method to complete the analysis and judgment of each photo.
In 2017, Shangtang technology began to explore the application of AI technology in 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 then continued to make breakthroughs. Now, the time of completing a routine inspection is shortened to just 4 days, and the efficiency is improved by more than 20 times. Catenary detection is also difficult from one “eye”, and it has been successfully achieved at a glance.
Deputy chief engineer of China Railway Electrification Design & Research Institute Li Feng, design director of Beijing-Shanghai High Speed Railway Co.Ltd(601816) OCS, said: “With the advent of the ‘starry sky\’ system, the operation and maintenance personnel working at night can make more effective use of the ‘skylight time\’ for efficient and accurate maintenance, and better protect the safety of passengers under another ‘starry sky\’. At the same time, AI technology is used to enable the maintenance of high-speed rail catenary, help China’s high-speed rail implement predictive maintenance, improve the quality of high-speed rail, and show the creativity and competitiveness of Chinese enterprises Strive for strength and solidly boost China’s high-speed rail going global strategy. “
“China’s digital economy industry demonstration sample 50” is the focus of APEC China Business Council and APEC China Digital Economy Committee on the “14th five year plan” Digital China strategy, which comprehensively considers the development quality, technological innovation, compliance and governance, social responsibility and influence of enterprises. It is to lead scientific and technological innovation, practice digital inclusion China’s sample of digital economy highlighting the role of industry.
AI improves detection efficiency by 20 times
According to statistics, Beijing-Shanghai High Speed Railway Co.Ltd(601816) 4C catenary inspection vehicle can collect up to 3 million equipment pictures every quarter. If each person needs to judge 8000 pictures every day, it will take more than 20 days for more than 20 people to work overtime. In the face of such Beijing Vastdata Technology Co.Ltd(603138) , problems such as long manual analysis cycle, large difference in judgment standards and unable to guarantee quality have plagued the inspection of high-speed railway catenary for a long time.
After applying the “star sky” intelligent analysis system based on Shangtang’s “industrial engine”, with the help of AI intelligent analysis, only two technicians can complete the analysis of the same 3 million pictures in 10 days, and the efficiency is improved by 20 times.
At the same time, the application of “star sky” system can also greatly reduce the dependence of 4C detection on personnel experience, reduce the uncertainty caused by different manual judgment standards, and enable new employees to make accurate analysis and judgment like experts.
Behind the powerful “star sky” intelligent analysis system, it is inseparable from the high-efficiency, automatic and intensive algorithm production capacity of sensecore Shangtang AI large device. Shangtang “industrial engine” realizes the mass production of various defect detection algorithms. This gives the high-speed rail Catenary Inspection a real “golden eye”.
solve the detection problems and fill the industry gap
From overhead cable equipment, support structure to suspension device, “Star” intelligent analysis system can automatically identify thousands of defects including hundreds of parts such as bolts and nuts, insulators, hanging strings, open pins, load-bearing cables and contact wires. For example, in the face of the problem of extremely lack of samples such as hanging string fracture, Shangtang technology has increased the detection rate from 73% to 95.7% by using the hybrid visual algorithm mode of traditional algorithm and deep learning, 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 “4C detection operation”, the system also further opens up the data closed loop of “training application optimization”, so as to continuously optimize the accuracy of the algorithm and continuously improve the detection effect. Up to now, the national high-speed rail detection of “star sky” intelligent analysis system has exceeded 30000 kilometers, the number of pictures has exceeded 48 million, and the number of parts has exceeded 1.3 billion.
With the continuous accumulation of data, AI will also help high-speed rail patrol inspection and explore predictive maintenance. Through the methods of “spatial positioning”, “one pole and one gear”, the system can accurately locate the pole number of each pillar and establish a data file. “When a component fails, we can trace whether the component has an omen and change trend of impending failure. By summarizing experience, we can predict the possible failure in advance and eliminate the hidden danger in advance.”
With the “star sky” intelligent detection system playing an increasingly important role, the innovative significance of AI technology in the field of high-speed rail catenary detection is becoming more and more obvious. It not only improves the intelligent level and detection efficiency of catenary maintenance, but also creates a precedent for China’s railway power supply system to identify the defects of catenary parts through 4C image intelligent analysis, It fills the gap in the field of 4C intelligent detection and analysis in China.
In 2021, the “star sky” intelligent analysis system successively completed the 4C image recognition and comparative analysis of OCS of 6 railway bureaus and 13 lines organized by the Ministry of industry and electricity of China Railway Group, achieved outstanding results, and realized the automatic detection of OCS defects. In the future, with the increasing demand for digitization and intelligence, Shangtang will continue to cultivate original technological innovation, provide strong support for the rapid development of China’s railway industry, and promote AI technology to enable all industries.
about Shangtang technology
As an artificial intelligence software company, Shangtang technology aims to continue to lead the frontier research of artificial intelligence with the mission of “adhering to originality and letting AI lead human progress” and the vision of “artificial intelligence realize the connection between the physical world and the digital world, promote the sustainable development of social productivity and bring people a better combination of virtual and real life experience”, 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.
Shangtang technology has profound academic accumulation and has long been engaged in original technology research, continuously enhancing the industry-leading full stack artificial intelligence capability, covering key technical fields such as perceptual 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, Shangtang is forward-looking to build a new artificial intelligence infrastructure – sensecore Shangtang AI device, open up computing power, algorithms and platforms, significantly reduce the price of artificial intelligence production factors, realize high-efficiency, low-cost and large-scale AI innovation and landing, so as to open up the closed loop of commercial value, solve the problem of long tail application, and promote artificial intelligence into the stage of industrial development. Shangtang technology business covers four sectors: smart business, smart city, smart life and smart car. Relevant products and solutions are highly praised by customers and partners.
Shangtang advocates the artificial intelligence ethics of “development” and actively participates in the formulation of industrial, national and international standards related to data security, privacy protection, artificial intelligence ethics and sustainable artificial intelligence. As of June 30, 2021, Shangtang has participated in the formulation of more than 80 industrial, national and international standards, and has carried out close cooperation with many Chinese and multilateral institutions on the sustainable and ethical development of artificial intelligence. Shangtang’s AI code of ethics for sustainable development was selected by the United Nations AI strategic resource guide and published in June 2021. It is the only AI company in Asia to win this award.
Shangtang technology has set up offices in Hong Kong, Shanghai, Beijing, Shenzhen, Chengdu, Hangzhou, Nanping, Qingdao, Sanya, Xi’an, Taipei, Macao, Kyoto, Tokyo, Singapore, Riyadh, Abu Dhabi, Dubai, Kuala Lumpur, Seoul and other places. In addition, Shangtang technology has business in Thailand, Indonesia, the Philippines and other countries.
