In the past, the missing parts in the automobile production line could not be replenished in time. After Zhang Xiaohui came, he helped design the digital transformation and upgrading scheme, and the handling robot accurately guaranteed the supply of parts.
At one time, based on experience and estimation, Zheng Jishu and others used digital technology to build aquaponics AI factory, which could raise fish and grow vegetables, and the efficiency was greatly improved.
In the past, it was necessary to draw a thick stack of drawings when designing traffic routes. After Tang Tiantian and his colleagues applied digital twinning technology, the computer designed the optimal traffic route, and the three-dimensional moving picture was clear at a glance.
The revised 2022 edition of the National Occupational Classification Ceremony marked 97 digital occupations for the first time. Digital solution designer, agricultural digital technician and digital twin application technician & HELIP; … More and more people are engaged in digitalization, helping intelligence and serving high-quality development.
Digital solution designer — —
Customize the "Fitness Program" for the factory
Wide-area Mingdao Digital Technology Co., Ltd., Zhang Xiaohui turned on the computer, and the Chengdu factory of Linke Automobile, 300 kilometers away, emerged. On the screen, the handling robots (AGV) crisscross each other, and send the auto parts to every production link in an orderly way.
As a digital solution designer, Zhang Xiaohui reproduces the whole production process in real time through digital twinning technology, and tailors the best solution for the factory, making the machine smarter, producing smarter and serving intelligent manufacturing.
"The original Lectra factory also used hundreds of handling robots, but they came from different manufacturers and had different internal systems, so it was difficult to make unified scheduling and it was inevitable to make mistakes." Zhang Xiaohui introduced that sometimes, a part has been used up, but the handling robot didn’t deliver it in time.
In order to improve the production efficiency and reduce the production cost, the Lectra factory invited the Zhang Xiaohui team of Wide-area Mingdao to design a set of digital transformation and upgrading scheme, so that the handling robots of different manufacturers can "share the same mind" and jointly complete the efficient distribution of "finding people to find goods".
Before designing the scheme, in-depth research is essential. Zhang Xiaohui "squatted" in the factory for several days, carefully inspected every production link, listened to the opinions of field engineers and managers, and discussed the digital upgrading scheme together.
"First of all, we must fully understand the real situation and needs of the business, and then design the solution in a targeted manner." Zhang Xiaohui said that the feasibility should also be considered. After the scheme is mature, it will be handed over to engineers and technicians to implement it one by one. In case of operational problems, it is necessary to communicate repeatedly and improve the scheme.
Digital solutions can not only improve production efficiency, but also reduce errors. In the Xiangtan base factory of the long-distance automobile, Zhang Xiaohui learned that some screw-screwing links before the long-distance automobile were prone to problems, some were too tight, while others were too loose. Find out the reason after talking with front-line engineers — — There are several models of cars in the factory, which need to use different tightening procedures. Workers sometimes don’t know clearly, so they are prone to misoperation.
"If only tightening the gun could automatically adjust the parameters!" Zhang Xiaohui has designed a digital solution for the factory. Different models of cars pass through the production line, and the system automatically sends signals to the tightening gun to adjust the appropriate parameters. Workers don’t need to adjust the parameters, just pick up the tightening gun and stretch forward.
"The digital solution is not only like a doctor prescribing a prescription, but also like a coach ordering a fitness training program, so that the factory will continue to glow with new vitality in the process of digitalization." Zhang Xiaohui said.
Agricultural digital technician — —
Insert scientific and technological wings for agriculture
Fish on the left and vegetables on the right. Connected by pipes, aquaponics. There is no one in the factory, only the robot arm is waving back and forth and is busy carrying the cultivation plate. Entering the AI factory in aquaponics, which is located in the western (Chongqing) Science City, the vegetables are stacked one after another, and the growth is gratifying.
"From a seed to a vegetable, the whole process is unmanned." Zheng Jishu, agricultural digital technician of Chongqing Academy of Agricultural Sciences, said.
Here, relying on intelligent algorithms, machine vision and other digital technologies, Zheng Jishu and his team built a set of aquaponics ecosystem: "After nearly 10 years of research, we have realized the full utilization of fish tail water, zero addition of nitrogen fertilizer, and the conversion and utilization rate of ammonia nitrogen has reached more than 90%."
On the vegetable rack, there are many pipes. "We don’t need fertilization to grow vegetables here." Zheng Jishu said that the fish tail water was treated and converted into water-soluble fertilizer, which was then transported to vegetables through pipelines, and the "nutrient solution" after being absorbed by vegetables and then flowed back to the fish pond. Compared with traditional vegetable fields, it greatly saves planting space.
Small factories hide big technologies — — In the fish pond, there is a feeding system, and the feeding function can accurately feed the fish according to their feeding needs; There is a water treatment system, and all fish ponds are equipped with sensors, which can monitor water temperature, water depth and dissolved oxygen. In the vegetable shed, there is a vegetable logistics cultivation system to realize the whole intelligent production operation.
"In this way, the growth cycle of fish is shortened by about half, the bait is saved by about 20%, the yield per unit area of fish farming is 10 times higher than that of ponds, and the yield per unit area of vegetables is more than 10 times that of land cultivation." Zheng Jizhen said.
At present, the intelligent production mode is being popularized in Chongqing, and six aquaponics factories have been built in Bishan and Liangping, among which the aquaponics Digital Factory in Liangping Digital Farm is expected to produce 150 tons of bass and 40 tons of vegetables annually.
Digital Twin Application Technician — —
Copy the city data into the computer.
"Look, we moved the whole city into the computer!" Holding the mouse in hand, Tang Tiantian shows the Chongqing urban information model platform. "In layman’s terms, digital twinning technology can make the ‘ Electronic twins ’ Try to restore the real world. " She explained.
After graduating in 2021, Tang Tiantian joined the Spatial Information Branch of Chongqing Survey Institute and became a digital twin application technician, participating in the research and development of Chongqing urban information model platform and the application of digital twin cities. Usually, she and her colleagues use satellite remote sensing and aerial photography to obtain basic data, build data models and draw three-dimensional images.
"If the two-dimensional map is ‘ Look at the photos ’ , the digital twin application is ‘ Look at the real person ’ 。” Tang Tiantian said that the urban information model platform is not only more accurate, "a tree can be seen clearly", but also more powerful. On the map, the building is just a point. With the help of digital twin technology, it can observe and simulate sunlight and lighting in 360 degrees, and even "see through" its internal structure.
With the digital twinning technology, it is not only convenient to understand the current situation of the city, but also can carry out simulation deduction and optimize urban planning.
In the past, when planning an industrial park, it was necessary to draw a stack of drawings on the contour line, where to dig many earthwork, where to have underground rivers, and how big the ecological red line is … … Every job consumes a lot of energy.
Now, let the data "run more on the computer". After the planning scheme is input, it is clear at a glance how much earthwork is dug in red and how much earthwork is filled in green, and the engineering quantity can be calculated with one click; All kinds of plans such as ecological red line are clearly displayed and reminded to avoid; Perspective of geological structure, avoiding unstable land mass … …
Digital twin technology can also come in handy in emergency relief. For example, the Chongqing section of the Yangtze River is flooded, and the urban information model platform can simulate the future situation. If the Yangtze River is flooded by 5 meters, which places will be flooded and which facilities will be transferred can be mastered in one map.
In May 2022, Chongqing took the lead in organizing and implementing the training project for digital technical engineers, and Tang Tiantian participated in the training, which was very rewarding. "Digital twin technology has great potential, and now it is only the beginning." She is full of longing for the future of her career.
Co-ordination in this period: Shuo Yang Wall
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