A few days ago, the intelligent excavation autonomous navigation system independently developed by the Taiyuan Research Institute of China Coal Science and Industry Group has been widely used in the fast excavation equipment of coal mines such as Guoneng Group, Shaanxi Coal Group, Shanxi Coking Coal Group, etc. The footage exceeded 3,000 meters, and the planned cutting and mining of the bolter was successfully realized. The deviation between the section forming accuracy and the predetermined trajectory reached the centimeter level, which truly solved the cutting and positioning problem of coal mining equipment and helped the coal mine to realize intelligent excavation.
Whenever talking about this navigation system, the masters of the bolter drivers will happily say: "Since using the roadheading navigation system, we no longer worry about the bolter going off-track, and the roadway forming quality is better than before. The windlass installed a 'scope'!"
After years of innovation and iteration, Taiyuan Research Institute has successfully developed multiple series of autonomous navigation and positioning systems for tunneling equipment, which solves the key common technical problem of positioning and orientation of underground tunneling equipment, and realizes the theoretical research, equipment research and development and environmental adaptability of tunneling equipment navigation technology. New breakthroughs in the coal industry will help the high-quality development of the coal industry.
In recent years, with the opening of the curtain of intelligent mine construction, Shanxi, Shandong, Inner Mongolia, Shaanxi, Henan and other provinces have successively issued implementation plans for intelligent construction of coal mines. Automatic orientation and navigation, automatic cutting and forming technology of roadway section are listed as a basic requirement of intelligent excavation equipment. However, due to the harsh environment of the coal mine tunneling face, the complex tunneling process, and the low-frequency and large-scale vibration and shaking of the tunneling equipment during operation, accurate positioning and navigation technology has always been a worldwide problem that restricts the intelligentization of tunneling equipment. Taiyuan Research Institute has long been committed to digging out the difficulties and pain points that restrict intelligent underground tunneling equipment, focusing on building an all-round solution for tunneling equipment navigation and positioning, and conquering key technologies such as combined navigation and positioning of underground closed space tunneling equipment, automatic cutting operation planning and control, etc. The problem, as mine workers put it, is to install precise "sights" for the tunnelling equipment.
Taiyuan Research Institute adopts high-precision inertial navigation technology, integrates multi-sensing technologies such as optical measurement and machine vision, and proposes adaptive correction algorithms and compensation schemes. Improve the performance of the navigation and positioning system from the control elements, evaluation algorithms and other levels, realize centimeter-level positioning of the tunneling equipment and autonomous correction of the inertial navigation system, and have the ability to maintain high accuracy of heading angle and attitude angle without auxiliary navigation source, and high-precision self-alignment and other advantages. The application of the navigation system can improve the comprehensive excavation efficiency of the working face by more than 20%, and each production shift can reduce 1-2 people. At the same time, it actively carried out technical iterations. The second-generation driving equipment navigation system shortened the calibration time by more than 60% compared with the previous generation, and improved the navigation accuracy by more than 10 times, which greatly improved the intelligent level of coal mine driving and the driving efficiency, and ensured the operation safety.

Taiyuan Research Institute has strengthened the brand advantage of the navigation and positioning system of roadheading equipment with advanced technology, excellent quality and high-quality service. In 2021, the navigation and positioning system of roadheading equipment has been applied to intelligent roadheading projects in more than 40 coal mines in Xinjiang, Inner Mongolia, Ningxia, Shaanxi, Shanxi, Shandong, Henan and other provinces. Machines and other equipment have assisted coal mines to successfully pass the intelligent upgrade and transformation, and have been well received by customers. In 2021, the market share of the complete set of fast excavation equipment for the navigation system of this roadheading equipment will reach more than 60%, and the number of applications will increase by more than 5 times compared with the previous year. At the same time, the application mode is continuously extended, and the transparent geological data of the coal mine and the precise positioning and orientation data of the equipment are integrated to realize the high-precision cutting of the equipment along the planned route.
A scholar must be courageous and have a long way to go. The national "dual carbon" strategic goal puts forward new requirements for the reform of my country's coal industry and enterprise development. Taiyuan Research Institute follows the trend and has the courage to explore. A leap forward in intelligent manufacturing of high-end coal machinery equipment.