Laocai River worker | "Zero" breakthrough!The national standards led by Professor Han Xu of our school were officially released

Recently, our school as the first drafting unit and led by Professor Han Xu, Wang Jia, Zhang Luyu, Duan Shuyi, Tao Yourui and other teachers were drafted as the national standard "Industrial Robotal Unprecedented Working Time Calculation Method" No.: 20203803-T-604) The national standard information public service platform was officially released. It took the lead in formulating the international robot reliability assessment standards in the world and achieved a breakthrough of "zero".

Since the "Thirteenth Five -Year Plan", my country's industrial robotics products have continued to innovate and have improved their performance significantly, but the standard testing and evaluation system is not perfect, and it cannot support the rapid development of the industry. In July 2019, relying on the reliability and intelligent national key laboratory of electrical equipment and intelligence, our school established the national automation system and integrated standardized technical committee of the robot and robotics and equipment sub -technical committee. The establishment of national standards and industry standards related to the reliability of industrial robots and the development of industry standards is committed to improving the reliability level of domestic industrial robots. After the working group was established, it was led by Hebei University of Technology, and 19 units of the United Nations Industrial Robot Enterprise, National Robot Inspection and Evaluation Center, and Robotic Core component manufacturers. In four years, the national standards were finally established and approved for the "Calculation Method for the average failure working hours of industrial robots". At present, relying on our school's industrial robot reliability working group, 4 national standards related to robot reliability, service robot safety, and test methods have been drafted.

As industrial robots involve the service conditions such as transmission, transmission, frequent start and stop, testing alone can not effectively reflect the average failure working time of industrial robots under real conditions. For the first time, this standard combines the test field and the scene, the integration of testing data with service data, which reduces the cost of test evaluation and evaluation of industrial robots, and provides theoretical and technical support for the quality guarantee and reliability improvement of domestic industrial robots, leading and promoting the robot industry Standard system construction and standardization development.

Hebei University of Technology has been deeply cultivated in the field of electrical equipment for many years, and has achieved fruitful results in the amendments to the national standard system. The release of this national standard is one of the iconic results obtained by Professor Han Xu's national key research and development plan project "data -based industrial robot reliability quality guarantee and growth technology", and it is also the continuous promotion of "advanced equipment projects in our school The results of "first -class discipline construction with technology. In recent years, the school has given full play to the characteristics of discipline characteristics, enhanced the level of scientific and technological innovation, and newly added 7 national -level platforms including the reliability and intelligent national laboratory of electrical equipment and intelligence. Essence In 2020 and 2021, the national fund funding projects have been approved for more than 100 consecutive items, and the school's scientific research strength continues to increase rapidly.

Science time

MTBF (Mean Time BetWeen Failure) has an average failure working time, which refers to the average working time between the repaired products between the two adjacent faults, also known as the average failure interval time, which is equivalent to the "life" of the irreplaceable system.

MTBF reflects the proportion of the total working hours of a batch of products to the total number of faults of these products under the prescribed conditions and prescribed time. The commonly used units are hours, year and other time units. It is a key indicator for measuring product reliability, which can reflect the ability of the product to maintain the prescribed function within the specified time. Taking industrial robots as an example, MTBF represents how long the industrial robots can do normal work without failure. Under the same conditions, the higher the MTBF, the better the quality of the industrial robot and the higher the reliability.

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