After Yi Zhonghai and Jia Dongxu were taken away, Auntie and Jia Zhang asked around, but found no news about them.
Jia Zhang is okay. She has had the experience of being censored before, so she can calm down.
After all, I am just suffering a little pain inside, and my life will not be in danger.
But the eldest mother is different.
She couldn't sleep at night when she thought about where Yi Zhonghai was imprisoned.
The eldest mother wants to ask the deaf old lady to come forward to help find out the news.
It’s just that the old deaf lady has been in poor health recently. She is either in the hospital or on the way to the hospital.
Occasionally I would visit Silly Zhu in the fence, but I was not in the mood to care about Yi Zhonghai.
The eldest mother is very anxious and has been quarreling with Jia Zhang a lot these days.
She accused Jia Dongxu of being nothing but deceiving his master and destroying his ancestors, causing Yi Zhonghai to be taken away.
Jia and Zhang angrily scolded Yi Zhonghai for betraying his apprentice and pretending to be someone else's teacher.
The two families started a dog-eat-dog pattern and made the compound a mess.
Both families are "big families" in the courtyard. The residents did not dare to interrupt, and Liu Haizhong and the third uncle did not solve the problem.
There was no other way, so the sub-district office had no choice but to invite the two families to the sub-district office and give them a scolding. Only then did Auntie and Jia Zhang become honest.
Li Aiguo’s life was happy.
After sending Dasha to Beijing University, I took advantage of a few days of rest to catch up on the New Year etiquette.
A circle of relatives and friends visited Wang Dakui’s family, Zhou Ke’s family, and Zhang Yazhi’s family.
My father-in-law must not miss it.
Chen Fangxuan, an old tailor, now has an electric sewing machine and the blessing of Nuan Baobao, and his body and bones are actually much better than those two years ago.
Chen Xingjia’s son Chen Jiujin is one year old. As his uncle, Li Aiguo gave him a big red envelope of 50 cents.
Chen Xueru also loved children, so she hugged her nephew and babbled with her sister-in-law.
At noon, Chen Xingyi learned that Li Aiguo was back and returned to the tailor shop.
After Chen Xingyi entered the Changxindian Locomotive Factory, his wife has not yet been transferred back. In order to facilitate work, she temporarily lived in the workers' dormitory of the locomotive factory.
Chen Xingyi has become the maintenance team leader because of his outstanding performance in the machine repair workshop of the locomotive factory.
Li Aiguo had already known about this from Chen Xueru and expressed congratulations to him.
Chen Xingyi looked at Li Aiguo gratefully.
When Li Aiguo was developing a rollover box, he made friends with the leaders of the Changxindian Motorcycle Factory and several senior engineers, and they still kept in touch.
Take last year’s Chinese New Year as an example. Two deputy factory directors and three chief engineers all purchased bananas and southern specialties through Li Aiguo.
Only through mutual help can relationships gradually become closer and we can help each other.
When the leaders talked to Chen Xingyi, although they did not mention Li Aiguo, Chen Xingyi knew it very well.
He has only been in the motorcycle factory for half a year, and no matter how high his technical level is, he cannot be promoted.
"Brother-in-law, I know what is going on with me as the team leader, and I have to thank you for it."
"You are so self-effacing that the leader promoted you , that’s because you have the ability, other conditions are just icing on the cake.” Li Aiguo said with a smile.
Chen Xingyi knew that this brother-in-law had always kept a low profile, so he did not say any more and changed his words: "Brother-in-law, have you seen our workshop director recently?"
"Yang Xingzhai? He's not Are you going back to the south for the New Year?" Li Aiguo asked.
“Director Yang originally planned to go back, but he heard that there was a problem with the road sign machine he designed before.
Although it was ultimately found to be a machine failure, it had nothing to do with him.
But Director Yang still feels that he has a great responsibility, so he has been drinking to drown his sorrows these days," Chen Xingyi said.
“There’s something wrong with the road sign machine?” Li Aiguo had never heard of this.
Chen Xingyi explained the situation.
The accident happened on New Year's Eve.
Train 352 from Beijing to Yangcheng (pulled by the People's Steam Locomotive of the Baoding Locomotive Depot of the Beijing Railway Bureau) temporarily stopped at Yuanshi Station (a third-class station located in Yuanshi County, Shijiazhuang City). Waiting for mail parcels to be loaded and unloaded.
Because the postal staff transporting the parcels was delayed, train 352, which originally only needed to stop for ten minutes, waited for a full thirty minutes without completing the loading and unloading of the parcels.
At this time, a freight train sent by the Harbin Railway Bureau rushed over from behind.
It was early in the morning and covered in heavy fog.
When the freight train was traveling at a speed of 50 kilometers per hour, it was 200 meters away from the end of the 352 passenger train.
The main locomotive driver and co-driver discovered that there was a train parked ahead at the same time. They did not care about shouting and immediately took emergency braking measures.
However, it was too late, only 200 The distance of meters is far from enough for a train traveling at 50 kilometers per hour to stop.
A tragedy is inevitable.
The freight train knocked the parcel car mounted behind it off the track.
As a result of the accident, one People's steam locomotive was damaged, one UZ12 parcel carriage was scrapped, one XL61 luggage carriage was severely damaged, and 14 Type 22 passenger carriages were damaged.
The driver and stoker of the freight train and the operating conductor of train 352 were seriously injured, and many passengers and flight attendants were slightly injured. The line was interrupted for 15 hours and 6 minutes, constituting a major train accident.
Because the Chinese New Year is coming soon, the railway authorities pay special attention to safe driving.
The accident was investigated by the Accident Investigation Committee dispatched by the Ministry of Railways.
After investigation, it was surprisingly discovered that train No. 352 did use a semi-automatic road sign machine to hand over road signs before entering the blocked section of Yuanshi Station.
But the road sign machine malfunctioned.
In addition to the road sign machine, the semi-automatic blocking system also has the manual telephone blocking method as a line of defense.
Unfortunately, after discovering that the road marking machine was malfunctioning, the staff on duty at the blocked section of Yuanshi Station mistakenly concluded that train 352 had left the blocked section, so they issued an order to allow the freight train to pass.
This resulted in a dangerous situation in which two trains were in the same block section at the same time when the semi-automatic blocking system failed and the basic blocking method was deactivated, which ultimately led to the accident.
There are two reasons for this accident.
One is that the duty officer has a weak sense of responsibility, and the other is that the semi-automatic road sign machine is out of order.
As the inventor of the semi-automatic road sign machine, Yang Xingzhai was temporarily invited to undergo investigation.
Finally, it was found that the failure of the road marking machine was caused by a mechanical failure and had nothing to do with the road marking machine itself.
But Yang Xingzhai still felt that he had a great responsibility, so he had been depressed for a while and took half a month off.
Chen Xingyi knew that Li Aiguo had a good relationship with Yang Xingzhai, so he wanted to ask Li Aiguo to come forward to comfort Yang Xingzhai.
“This Lao Yang is just a deadbeat!” Li Aiguo agreed immediately.
However, after leaving the tailor shop, he did not go to the Changxindian motorcycle factory. Instead, he made a phone call to Zhou Ke.
"What is the name of the injured operating conductor of train 352?"
"Driver Li, wait a moment, I will check for you."
A moment later , Zhou Ke’s voice came from the phone.
"It's a female train conductor named Zhang Dahua. Hey, this girl is really unlucky.
She was originally a trainee train driver. After a year, because of her excellent performance, she was immediately promoted to train driver.
But according to the latest regulations, to become a train driver, you have to undergo a three-month rotation on the train.
As a result, this girl served as the train conductor on her first day. , I was hit.
Isn’t this bad luck?”
“Zhang Dahua is my old classmate.”
“.”
Zhou Ke on the other side of the phone was silent for a moment, and then a voice came: "Hey, my son seems to be awake. I have to coax him. Goodbye!"
Click, a busy tone came from the phone.
After putting down the phone and handing the fat aunt two cents, Li Aiguo smiled bitterly and shook his head.
A while ago, when he was chatting with some of his former classmates, he heard that Zhang Dahua was serving as the captain of the train, and he was happy for her. Unexpectedly, something happened within a few days.
When they were in school, Li Aiguo had a good relationship with Zhang Dahua, so it was natural that he should visit them.
After returning home, Li Aiguo first went to Wang Dakui and bought a can of malted milk, a few kilograms of bananas, and asked Chen Xueru to steam a pot of white steamed buns.
Chen Xueru knew that Li Aiguo was going to visit his old classmates and asked curiously: "Brother Aiguo, I have never seen anyone bringing steamed buns to visit patients?"
"Don't worry, Zhang Dahua. The girl will definitely like it.”
Zhang Dahua was on duty in the caboose when the accident happened. She was hit by the parcel carriage and suffered a broken leg. She was sent to the Qianmen Locomotive Depot Railway Hospital.
When Li Aiguo brought Chen Xueru to the ward, Zhang Dahua was leaning on the hospital bed and munching on a steamed bun.
"Patriot, why are you here?"
"Are you eating?"
"Ah"
Zhang Dahua was stunned for a moment, and after he came to his senses, he put down the steamed buns.
“The food in the hospital is not good. I don’t have enough to eat every day, so I eat secretly.”
At this time, the nurse doing the rounds came in and heard her words and laughed. Said: "Driver Li, don't listen to Zhang Dahua's nonsense. She has eaten two bowls of stick noodle porridge and four steamed buns this morning, which is equivalent to two sick meals."
Li Aiguo looked at this. The nurse suddenly smiled.
This nurse turned out to be Xiaoyun. When she married railway police officer Zhang Mingze, Li Aiguo also attended the wedding as a matchmaker.
"How is Mingze doing lately?" Li Aiguo greeted Xiaoyun with a smile.
“Just the same, Driver Li, you’ve screwed me over.”
“Why?”
“Zhang Mingze was at home last month and only stayed Three days! I am a new daughter-in-law, and I have to stay alone in the empty room every night. It feels uncomfortable!”
Ahem, the little nurse is so fierce.
"Okay, next time I will give his leader some advice to take care of the newly married young people."
"Oh, thank you then." Xiaoyun smiled happily.
She took Zhang Dahua’s temperature, then closed the door and went out.
Li Aiguo placed the gift on the bedside table.
"Malted milk, tsk tsk, this thing is too sweet. Banana? That's about the same. Driver Li, you are now a Li driver, so you are quite rich."
Zhang Da Hua herself has a carefree temperament and has never regarded Li Aiguo as an outsider. She curled her lips while rummaging through the bag.
When he saw the dozen big white steamed buns, Zhang Dahua’s eyes lit up.
“It’s still patriotic, you understand me!
However, I have to trouble you to hide the steamed buns under the bed.
That little nurse just now was so cruel! She saw her When it arrives, it will definitely be confiscated.”
"You, you can't eat less steamed buns." Li Aiguo couldn't understand Zhang Dahua, and threw the bag under the bed with a smile.
Later, he introduced Chen Xueru to Zhang Dahua.
When he married Chen Xueru, Zhang Dahua was driving. He only asked someone to hand over the gift money and did not attend the wedding.
Seeing Chen Xueru for the first time today, Zhang Dahua praised: "Patriot, I have heard that you married a beautiful daughter-in-law, and today I saw that you are well-deserved. But that's all."
Chen Xueru heard this , curious: "But what?"
Zhang Dahua puffed up her chest and said: "My body is too thin, a real woman should be like me!"
She rolled up her sleeves and held them tight Fist, snorted, and his biceps bulged slightly.
"See, I can lift a sack of more than 100 kilograms by myself, how about you?"
Li Aiguo: "."
Look at Chen Xueru's big shoulders and round waist Zhang Dahua actually nodded in agreement.
Li Aiguo could understand the two people's brain circuits.
The great man put forward the slogan "When a woman stands up, she can block half the sky!" Every word is perfect.
It’s not that women can “occupy” half the sky, it’s not that women can “enjoy” half of the sky, but they can “top”. This illustrates the dialectical relationship between power and obligation.
Social status is not a "gift" obtained through "fighting", nor is it a compromise between various forces, but a real result of labor.
This honor does not belong to those refined egoists.
But it belongs to the first female soldier, the first female train driver, the first female tractor driver, the first female pilot, the first female tank driver and the vast number of people they represent from the feudal society. Women who are freed from the production relations in agricultural society are a victory for the revolution.
In this era, the so-called beauty belongs to working women like Zhang Dahua.
Chen Xueru envied Zhang Dahua for having the courage to work on the train. The two quickly became friends and chatted animatedly together.
Li Aiguo also asked about the entire process of the accident.
"Patriot, you know, after I was knocked away, my biggest regret at that time was that I died before I could become a train driver. It was such a pity that I died like this."
Zhang Dahua also mentioned what happened at that time. There is lingering fear in my heart.
"Don't worry, depending on your level, you can become a train driver sooner or later."
"Patriot, I heard that you have come up with a lot of good things, that [Move on, train "I have saved many train drivers. Can you help improve the road sign machine?"
Zhang Dahua looked at his former classmates and said somewhat depressedly: "You also know, because of the road sign machine." There have been so many accidents this year.”
Even semi-automatic road sign machines require manual operation and assembly.
When exchanging road signs, accidents often occur, and sometimes staff are even hung on the train.
"The road sign machine is already close to perfect. If we want to change it, we can only use electronic signals. It is very difficult." Li Aiguo thought for a moment and said.
The Railway Research Institute is preparing to build the Baocheng-Chengdu Railway.
This electrified railway should use some kind of electronic signal road sign machine obtained from Lao Maozi.
But Li Aiguo didn't know the specific situation.
Zhang Dahua thought Li Aiguo was particularly embarrassed and could only sigh helplessly.
Li Aiguo stayed in the ward for nearly half an hour.
As soon as I left the ward, I saw a tall and thin young man hurriedly opened the door of the ward with a bag of apples.
"Hey, this person should be Zhang Dahua's lover, he seems to be the conductor on the train." Chen Xueru looked like he was having fun.
"Zhang Dahua even told you this?" Li Aiguo said in surprise.
"Dahua and I are good sisters!" Chen Xueru raised her head proudly, "Dahua is still hesitant whether to agree to him."
Yes, the lesbians formed a group Alliance, let's stay out of this matter.
Li Aiguo is not interested in these things themselves.
After returning home, while writing, I focused on solving the problem of communication between blocked sections of the railway.
The next day was driving day.
After a busy day, Li Aiguo originally planned to go to Changxindian Motorcycle Factory to visit Yang Xingzhai.
But I was notified to attend a safe driving meeting in the education room of the locomotive depot.
Director She of the Education Office reported on the recent safety production accidents on the railway.
Langfang Station dismantled train 1276. After conveying the dispatching plan at 10:20, the shunting chief Chen Menshi stood on the right side of the running direction of the locomotive and water tanker and started working.
While the locomotive was running, when he was moving around the hook to the left, his right foot fell into the air and fell into the line, causing his legs to be crushed and disabled.
After copying the train number in lane 3, Lu Yongyou, a dispatcher at Fengtai Station, jumped off the flatbed truck in lane 4 and returned to the station. He was hit on the head by the 1263 train passing through lane 1. He was not alive after rescue. Danger.
When Yi Ruiping, the deputy driver of the freight train at Qinghe Station, used too much force, the road sign came out of his hand and hit the station attendant, causing one person to be injured.
As for the first two accidents, train drivers and employees said that as long as they take proper precautions during stops, eliminate fluke, and ensure driving safety, similar accidents can be avoided from happening again.
But when it came to the road sign machine, they all smiled bitterly and shook their heads.
When the automatic road sign machine hands over road signs, the co-driver has to lean out of the car window. This is greatly affected by the speed of the vehicle and the surrounding environment, and it is easy for an accident to occur.
Cao Wenzhi’s co-driver once injured his wrist because of a road sign.
Li Aiguo felt a sigh of relief in his heart. Another accident occurred with the road sign machine. It seemed that he really had to go to the Railway Research Institute.
After work, Li Aiguo handed over the task of writing safety work experience to Huang Jing, and rode his bicycle to the Railway Research Institute.
Liu Guozhang was busy in the office with the preparations for the Baocheng-Chengdu Railway. He invited Li Aiguo into the office and poured him a cup of tea.
"Patriot, why are you here? Have you figured out that you want to work in the research institute?"
"Teacher, you have an important position now. As a student, I should naturally help you. I just want to work in the research institute, you know I am lazy.
I would like to ask you, what kind of signal signs are used on the Baocheng Railway? ”
Li Aiguo. Drinking tea, he said with a smile.
Liu Guozhang was not disappointed when he heard this. He stood up and took out a document from the cabinet and handed it over.
"This Baocheng-Chengdu railway project is extremely important, so the ministry plans to spend a lot of money to introduce monorail DC track circuit technology from Lao Maozi. This is currently the most advanced railway automatic signaling technology in the world."
< br>The original prototype of the railway did not have track circuits.
But as the number of train pairs increases and the operating speed increases, the train accident rate begins to increase rapidly.
There are two ways to clarify the driving conditions in the blocked area.
One is to use a road sign machine to determine the driving status through road signs.
The second one is high technology - track circuit.
This is an electrical circuit that uses two rails of the railway line as conductors and uses lead wires to connect the power supply and receiving equipment.
It monitors whether the railway line is idle and automatically and continuously links the operation of the train with the signaling equipment to ensure the safety of the train.
To put it simply, the rails are treated as wires, and the position of the train is determined by the current.
American Robinson invented the open track circuit in 1870.
In 1872, the closed track circuit was successfully developed and first tried on the Pennsylvania Railway in 1873. From then on, automatic railway signaling was born.
my country also used railway automatic signaling technology before liberation.
For example, in 1924, automatic blockade was built between Dalian-Jinzhou and Shenyang-Sujiatun, using AC 50Hz binary and three-dimensional phase-sensitive track circuits.
It’s just that the shortcomings of high technology are also obvious.
Because electrical signals are transmitted through rails.
The resistance of the rails is high, the distance is long, and the interference is large. It is easily interfered by the two-line and one-ground transmission lines.
So this technology is not practical.
After liberation, the country abandoned automatic railway signaling technology and adopted the method of road sign machines.
International research on railway automatic signaling technology has not stopped.
The railway technology research institutes in Lao America, Xi'an, and Lao Maozi all know that automatic signaling is the future of train technology, so they spend a lot of money and materials on research and have achieved many results.
At present, Laomaozi’s monorail DC track circuit technology is the most advanced.
It’s just that this technology has the biggest problem. Because it uses direct current, the rail breakage inspection performance is poor and “missed alarms” are prone to occur.
Liu Guozhang frowned when he saw Li Aiguo flipping through the information, and asked curiously: "Aiguo, what do you think?"
"This is indeed the most advanced railway automatic signaling technology in foreign countries. But it may be a bit difficult to support the inspection of the blocked section of the entire line," Li Aiguo answered truthfully.
Liu Guozhang knew as soon as he heard that Li Aiguo had his own research on this technology, he nodded and said: "Yes, some comrades in the ministry are very optimistic and feel that Lao Maozi has built several similar lines and has obtained It has been recognized by international peers, so we can follow suit.
However, I still recommend modifying a small section first for experimental purposes.
But this proposal has caused controversy, and now the department has The leaders inside have different opinions. "
Li Aiguo can understand the thinking of the ministry.
As the first electrified line in China, the Baoji Railway has been given additional significance, and has even risen to the level of improvement related to the overall situation.
in the country, once it comes to remediation, it is completely different.
Liu Guozhang asked: "Aiguo, you came here today, I'm afraid you have your own ideas, right?"
"Not just now"
Li Aiguo kept the technical categories in the information in his heart, The system was started secretly.
Open the system panel.
Steam engine driving: 100;
Cooking: 15;
Bicycle driving: 95;
Geological exploration technology: 20;
Criminal investigation technology: 61;
Mechanical design technology proficiency: 60;
EMU assembly body technology: 30;
Qian Xuesen’s ballistic technology 100;
Mechanical skill proficiency: 60:
Hand-rubbed nuclear bomb: 0;
Photolithography machine manufacturing: 0;
Sow postpartum care: 0;
High-speed rail manufacturing technology: 0;
The current score is 626 points.
Since the last time he redeemed Qian Xuesen’s ballistic technology, Li Aiguo has not spent points for a while.
I kept reading in my spare time and saved a lot of points.
Finally, I saved more than 600 points.
Li Aiguo has now found a small loophole.
That is, after you have the pre-technology of the target technology, the system will automatically default.
You only need to spend points to purchase new technologies.
It's just like playing a game.
You have obtained a [Broken Wooden Stick], which can be used to fight [Crayfish].
Then the dog system will give you some free strengthening coupons.
You think you have taken advantage, strengthen the [broken wooden stick] into a [refined staff], and then you can fight the [mutated crayfish].
Next, you’ll be on top and earn money.
Strengthen the [Devil-Conquering Liuhe Battle] and fight [Thunderbolt Crayfish]
Strengthen [Heaven-shattering Prajna Thunderbolt War +12] and fight [Overlord Sunset Shrimp]
It's free for a while, it's fun for a while, it's free for a lifetime and it's fun for a lifetime!
Li Aiguo now used Lao Maozi's automatic signaling technology for nothing, and then operated the system and searched for technologies related to railway automatic signaling in the system.
Soon, a line of blue text appeared under his eyelids.
Track technology: [DC pulse track circuit (100 points), hump track circuit (100 points), valve track circuit (100 points), 25Hz long track circuit (100 points), phase sensitive track circuit (100 points)]
AC counting code, frequency shift, high-frequency track circuit and axle counting equipment technology (locomotive signals matching this standard): [frequency shift track signal technology (100 points), UM71 None Insulated track signaling technology (100 points), ZPW-2000A non-insulated track signaling technology (100 points)]
Sure enough, I have Lao Maozi’s AC and DC track circuits and AC counting code track signaling technologies. Front-end technology saves a full 200 points!
It’s so happy to have sex for free.
Li Aiguo recalled the railway automatic signaling technology in his previous life, and finally selected the ZPW-2000A non-insulated track signaling technology for the DC pulse track circuit.
It is not that these two technologies are the best technologies.
Rather, they are low cost, can be produced using the current industrial level, and can be promoted on a large scale.
After shutting down the system, Li Aiguo looked up at Liu Guozhang and said, "Now we have it. Teacher, have you ever heard of DC pulse rail circuits?"
(End of this chapter)