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Chapter 7 Su Liangyu Ambition
A huge thing similar to a train sand table came into Liang Yuan’s eye. The sand table had mountains, jungles, towns and a small train with Shengjingnan brand hanging on it. The simulation track at the far end of the train was also divided into several turnouts and then extended through two simulation platforms marked Shengjing before it merged again.
There are bridges and tunnels in the simulated railway lines. The sand table of the double-track railway outlines four train models with more complicated patterns. There are also many simulated signal lights that can emit red, green and yellow light lines beside the tracks of two pairs of Mercedes-Benz simulated tracks.
"The white train in Xiaoyuan is very similar to the double-decker bus we made," said Ning Wanfei.
"The truck in front runs so slowly. Will the express train behind it hit?" Ning Wanjia was nervous and clutched Liang Yuan’s palm.
Four model trains, half passenger and half truck, each simulated railway runs a freight train and one passenger train. Each model train adopts five sections of passenger marshalling, and the nose and carriage are also equipped with light bulbs. It looks very imposing, but the freight marshalling model is very slow, which is much slower than the passenger marshalling to the naked eye.
"There should be no collision," said Liang Yuan, looking at the two columns that are far apart at present.
Talking about a freight model approaching the sand table, the south beam of Shengjing is far away. Now this freight car runs to Shengjing Line 2 after changing tracks at the turnout, and then slowly stops. Soon, the passenger car model with faster train passes by, and after the passenger car goes far, the freight model slowly starts with the change of signal lights.
Just Liang Yuan’s model is a fixed degree and a fixed program. After watching it for a while, I noticed that Shengjing No.2 has a track and there are indeed two trains of trucks that need to be avoided. Liang Yuan watched here with great interest and observed it carefully for a while. Liang Yuan now controls the whole sand table according to the real railway signal. Once two trains need to be avoided at the same time, one train will gradually slow down until another train is listed. Interestingly, the freight formation will slow down and the passenger formation behind it will also decrease.
After watching for a while, the two little girls gradually saw the doorway. Ning Wanjia pulled Liang Yuan’s arm and said, "Xiaoyuan’s system is so complicated. I will faint just thinking about it. How can this be set before?"
Liang Yuan said with a smile, "This thing is not set up in front, but modeled after the railway signal. Look at the sand table of signal lights next to the railway track. There are so many signal lights. It is not just to look good. Every two signal lights are a group of closed areas. If two cars are too close, the signal lights in the running area will turn yellow and then the model will automatically decrease."
"Jia Jia, look at the truck model on the right. Pay less attention to see if the signal light in front of him turns yellow." Liang Yuan pointed to a truck model and said.
"Look at the back of the truck. When it gets close to a certain distance, the signal of the passenger car at the back will turn yellow."
"Well, it’s really yellow. Xiaoyuan is so fierce. I’ll see it soon." Ningwanjia blinked and looked at Liang Yuan in worship.
Give NingWanJia misty eyes a stare Liang Yuan bones are light, two strong endure the little girl hug her arms impulse rare face a red turned to look at Li Yuanling and Tang Wan are absorbed in looking at the sand table held out his hand and NingWanJia coagulate fat face feel the palm come over cold soft greasy feeling light asked "jiajia cold"
"No," I felt Liang Yuan’s soft eyes and Ning Wanjia’s voice was slightly sweet and greasy.
Out of the corner of his eye, Su Liangyu and several technicians at the other end of the sand table are coming to his side. Liang Yuan patted Ning Wanjia on the cheek and said, "Let’s go into the tent and see Xin Wang’s sister’s system, which should show the movement of the model."
Su Liangyu greeted Li Yuanling and Tang Wan and said to Liang Yuan, "How is Xiaoyuan not bad?"
"At present, the sky is a grid. If you want to be good, you have to read the console inside to know," Liang Yuanxiao said.
"Xiaoyuan, you are really demanding," Tang Wan said with a smile. "I can’t figure out how to control such a complicated thing."
In the tenth century, computers were completely high-tech, not to mention the high degree of professionalism. Automatic chip control was the ability to type. Except for a small number of professionals, ordinary people look at this and see magic.
"Since Aunt Ning agreed, I’ll let them go. It’s almost qualified," said Liang Yuan ourtenant.
A few people lift the canvas curtain and return to the backstage of the lamp group.
Xin Wang saw Liang Yuan come back and asked with a smile, "How about Xiaoyuan? This light group is not bad?"
"Sister Xin Wang, do you want to hear the truth or a lie?" Liang Yuan said
"Xiaoyuan, tell the truth. I’m the project leader."
"This system should be modeled after the Japanese Shinkansen automatic step-by-step block system," Liang Yuan said positively.
Looking at Xin Wang some startled eyes Liang Yuan satisfiedly smile.
"This unified name is so long. It sounds complicated. Can Xiaoyuan say it simply?" Ning Wanfei asked curiously.
"Feifei, let’s make an analogy. For example, just now, the distance between two signal lights of two trains of passengers and trucks is a group of blocked areas. The time between these area numbers and a certain blocked area of the truck in front decreases with the approach of the truck. For example, the time between a 16-kilometer train and the six areas of the truck in front becomes 1212, 6, 6 and 4 in turn, until 2 and then stops, and everything is controlled by the square chip produced by the laboratory."
"But the sand table in front is limited. I didn’t see how many zones were set in a unified way. However, this control monitor around Xin Wang should be able to know the answer." Liang Yuan pointed to the equipment that is bigger than the billiard table.
After Liang Yuan showed that several people completely understood the principle of sand table outside, Ning Wanfei looked at the controller and said, "These lines represent the track lines outside, and each light bulb is an area. The four blue dots are four trains. I have shown two blue dots, and the nearest distance is separated by two light bulbs."
"It’s so complicated," said Ning Wanfei, looking at the flashing light spot.
Liang Yuan smiled at Ning Wan Fei and then said to Su Liangyu, "Old Su should have finished talking with the railway bureau signal experts in January, right?"
"You can’t hide anything from me. You really don’t know where you know so many irrelevant things," Su Liangyu said.
"Xin Wang is still waiting for Xiaoyuan to tell the truth. Xiaoyuan tells me what’s wrong with this system." Su Liangyu pointed to see Liang Yuan Xin Wang eagerly.
"Ha ha can make this sample has surprised me. Sister Xin Wang wants to hear my praise."
"I wish Xiaoyuan had crossed the years earlier," Xin Wang said with a smile.
"Then wait for Lao Su to tell me in June that Xiaoyuan Laboratory is out of money. It’s up to you." Liang Yuan asked easily.
"Su Gong which have you said so unbearable" Yuan-ling Li said with a smile.
Liang Yuan looked at Su Liangyu and said with a hey hey smile, "Old Su, you got this system. For China’s railways, the biggest disadvantage of some over-qualified automatic step-by-step blocking systems is that they affect the performance of trains. After some minor accidents, trains are easily delayed, and the ride experience of Shinkansen is not comfortable due to frequent addition and subtraction of trains."
"However, the biggest disadvantage of this system in China is that the performance of the traction nose and the braking performance of the train grouping are difficult to meet the requirements of increasing and decreasing the height of this system. I remember that the distance between the Japanese Shinkansen trains is 2 kilometers. What is our current distance? It should be 6 kilometers less. It takes ten minutes and 20 kilometers for the Dongfeng nose to increase from 60 kilometers to 100 kilometers, while it takes less than three minutes and four kilometers for the Japanese Shinkansen trains to travel from 100 kilometers to 200 kilometers."
"This system is of great significance for China’s railway to realize gasification at a high level (Note 1), but there is no qualitative improvement in the traction head of China. There is not much room for the real performance of the former system. For the time being, it belongs to the flower stand, regardless of the degree factor. The daily capacity of the same railway line is three times that of us. If the degree factor is less, it is six times." Liang Yuan said with some sighs.
"Listening to the railway signal experts, this system is also first-class in the world, but it almost became worthless here. Fortunately, Xiaoyuan didn’t go to the symposium in January," Su Liangyu said with a smile.
"But Lao Su, you should get this set of things out and focus on the Ministry of Railways to vigorously promote gasification transformation projects at present." Liang Yuan asked cheerfully.
Su Liangyu ha ha a smile and said, "I still dare to have this idea after you mention it."
After half a year’s contact, Xin Wang knows Liang Yuan very well. Listening to Liang Yuan’s words, he asked with a smile, "Generally speaking, Xiaoyuan is dissatisfied with something. It must be better in his heart. Now I am curious about what it will be like to be better than this world-class railway signal control system?"
Liang Yuan listened to Xin Wang and remembered that the automatic control system of the S Shinkansen railway in the island country was completed in 95 years in the future, and now there is no film.
Liang Yuan looked at the people around him with great interest and looked at himself curiously. Hey hey smiled and said, "It’s very simple to add a wire communication chip to this system."
"Simply put, it is to change the current step zone mode of Shinkansen into the target distance curve control mode, calculate the distance from the train behind the communication chip to the train in front in real time, and then refer to the braking curve and braking distance to determine whether the braking should be reduced."