Siheyuan: I eat melons while doing scientific research

Chapter 1092 Unified Standards
An interesting piece of hot knowledge: For a network connected by bus, the term "network segment" can be a logical description or a physical description. For example, 10Base-5 can have 5 network segments connected by repeaters, and the total network length can reach 2500 meters.

Although the hub of the equipment provided by the system to Gao Zhendong is essentially just a bus, it physically separates the cables of each machine, so that a cable break on a single host will not affect other machines. Of course, the price is high, requiring more cable costs.

After listening to the explanation of the comrades from Factory 1201, the comrades praised Chief Engineer Gao's idea as a brilliant one. If you want cheapness, use a bus structure; if you want reliability, use a star structure.

If it were to happen a few decades later, comrades would all praise it as "absolutely amazing".

Some other comrades were very interested in 485. It was simple, reliable, cheap, had very good performance, and could transmit data over long distances. It also did not require a proper computer to transmit data.

Compared with the high price and high usage threshold of network cards, this thing is simply a boon for large-scale, medium-distance, medium-speed data transmission applications.

——Comrades firmly believed that the name Gao Zhendong gave to this equipment was wrong.

Eventually the original author was overthrown by the fans, and with the calls of the comrades and the promotion of the leaders of the 12th Ministry of Machine Building, the name of this topic was forcibly changed to "Low-Cost Medium-Distance Medium-Speed ​​Industrial Communications". It did not say "Medium-High Speed" in order to give Commissioner Gao some face.

The comrades who were more quick-witted directly asked the Institute of Water Resources and Science to get some for them. Money was not a problem, as everyone had to go through the planning approval process anyway, but I wanted the stuff.

It's not integrated yet? That's not a problem. The discrete components make it very small. Chief Engineer Gao has high standards for himself and thinks it's not easy to use without integration. We have low standards. This thing is great, right? The sooner you use it, the sooner you can enjoy it. If you want to wait, just wait.

Looking at this bunch of mysterious units, Director Hou was in a dilemma. How could he have imagined that this thing would be so popular?
Do it or not? How much? Who should I give it to first?
If it is not handled properly, it will damage the relationship between brother units.

At this time, the director who was in charge in person played a role. He made a decision on the spot and went back to organize the assembly. He assembled a batch first, at least to meet the requirements of the comrades in the design work. As for the funding, it was easy to talk about.

Director Hou couldn't make a decision on this matter, because he couldn't mobilize resources to meet production requirements. He couldn't even decide whether to give it or not. Although Gao Zhendong was the leader of this project, it was approved by the Water Conservancy Commission itself, and Director Hou didn't have this authority. Even if he knew that this matter would definitely be approved, he didn't dare to approve it.

It was also the first time that Xue Chongli enjoyed the treatment of being the center of attention, of course, with the exception of Lin Lianwei and Su Weihua, who had used backdoors.

The comrades from various factories and institutes were very satisfied. The leader of the 12th Ministry of Machinery extended his hand to Gao Zhendong and said, "Where is the project application for the network card equipment? This thing has been completed, but I haven't seen it yet. Hurry up, I'll sign it."

Let's put this thing in our pocket first. Once the project application report is approved, the project will not go to other ministries. Don't you see that the National Defense Committee is eyeing it covetously?

In fact, topics of this field and level are actually managed by the military equipment department at Citibank today. Early network and computer technologies are almost all decentralized to the military.

Gao Zhendong was stunned. There was no such thing. He just made it himself and then gave it to 1201 to assemble and debug.

Director Xiao Gao knew what was going on as soon as he saw the situation, and he quickly came over and said, "Oh, our research group forgot about it. The main reason is that the chip was made by the 17th Ministry of Machinery, and we just assembled and debugged it, which didn't cost much money. It's my fault, I'm not serious, don't worry, leader, I'll make it up right away when I get back."

The leader of the 12th Machinery Department nodded with satisfaction: "Well, let's learn from the comrades of the Third Factory and write the project application together."

When the dust settled, the leader of the 12th Ministry of Machine Building, feeling that he had gotten a great advantage, ran away with the chief engineer at an extremely fast speed.

After seeing them off, Gao Zhendong turned around and whispered something to the chief engineer of the Defense Work Committee who had been laughing at the joke of the 12th Ministry of Machine Building.

The chief engineer of the Defense Work Committee said to the other comrades: "Comrades, people from other factories and institutes can go first, but comrades from the Military Communications Institute, comrades in charge of the overall work of large and complex equipment, and comrades in charge of the electronic control systems of equipment, please stay, we still have work to do."

Gao Zhendong is now able to keep people temporarily.

This time, even all the comrades from Factory 1201 could not stay.

Gao Zhendong handed Xue Chongli over to Director Xiao Gao and asked him to make some temporary arrangements for his old classmates as they were going to have dinner together in a while.

Lin Lianwei and Su Weihua are both responsible for equipping electronic control systems, so they have to attend the meeting.

Only after the comrades from the Defense Work Committee had guarded the meeting room inside and outside did Gao Zhendong and the chief engineer of the Defense Work Committee sit down again.

"Comrade Zhendong, tell us if you have any new ideas." The chief engineer of the Defense Work Committee said with a smile, and it seemed to be related to today's meeting.

Gao Zhendong nodded: "Comrades, as the use of digital technology in equipment is becoming more and more extensive and in-depth, do you have any special feelings?" Special feelings? The comrades were a little confused. This question was a bit too broad. There were so many feelings. Good effect, high difficulty, and complex technology, do these count?
Perhaps feeling that he had been a little vague, Gao Zhendong added: "The special feeling I'm talking about is the difficulties at work."

Difficult? That's easy, there are so many of them.

In front of me is one of the top scholars in digital technology, and his expertise spans a huge range. I should take advantage of his presence to talk to him about my problems, and maybe I can solve the problem.

“There are many difficulties. We have no experience and we have to work in isolation. The work is quite difficult. Digital technology is a new technology.” This is a bit vague.

"Yes, leaving aside their respective special functions, the connection, transmission and exchange of digital systems is a problem." This comrade went a little deeper. This is indeed a problem. Special functions cannot be discussed here. The difficulties of that thing are your own problems. You have to admit that the technology is not up to standard. However, there is a lot to say about peripheral things.

"When you mention this, I'm not sleepy anymore. The electrical interfaces and data formats at the sensor factory are varied. Let alone other things, just converting their data into a unified format so that our system can use it is a big hassle. If it were a simpler equipment, the cost of this work might be higher than the main function!" Speaking of this, the comrade in charge of the overall situation had a lot to say.

"Don't just say that you are having a hard time. We who are responsible for the sensors are having a hard time too. Not only are your instructions varied, but the instruction structures are also varied. For every additional demand unit we have, we have to add a bunch of programs for our sensors or modify the electrical interface. This job is simply impossible. Otherwise, we have to make a special set of programs for you. The functions are actually the same, but you are forcing us to reinvent the wheel!" You people who are in charge of the overall situation are not satisfied, and we who are in charge of the sensors are even more annoyed.

"Don't even mention custom-made programs. The detector you sent last time didn't match our programs, and the data couldn't be read at all. How dare you say it's custom-made?" Tsk, after so many years of cooperation, who doesn't have some dirty information about others?

Large equipment has a large number of various sensors, actuators, and controllers, ranging from complex radars to simple pitot tubes. They are all sensors, so if you want to argue about them, there is really a lot to talk about.

Comrades soon started doing "intense and friendly" oral gymnastics on this issue.

The chief engineer of the Defense Work Committee looked at his comrades with a face that was neither amused nor helpless. "Comrade Zhendong asked a random question, but you guys started fighting like this?"

Seeing that the situation was getting more and more lively, Gao Zhendong hurriedly stopped everyone: "Okay, okay, I understand the situation, comrades, there is no need to say more. To sum up, there are big problems with the transmission and exchange of data between various nodes, right?"

The comrades stopped arguing and nodded in agreement.

Gao Zhendong smiled and said, "Have you guys thought of a way to solve this problem by working together to come up with a set of standard electrical interfaces and protocols?"

This is what he felt was ripe for development - a proprietary bus protocol similar to the 1553B data bus, which does not even have to be used on aircraft, but can be used on any equipment that is not as large or complex as a warship.

The comrades were stunned. Yes, what is the point of arguing? Can't we just solve the problem if there is one?

The comrades from the Military Communications Institute were the first to react. After all, they had developed tactical communications protocols under Gao Zhendong's suggestion, and they had the most profound feelings about this matter.

"Chief Engineer Gao is right. This can be done."

"Unified electrical interfaces and protocols? For use in harsh environments like military equipment? Can our current technology achieve this?" asked Gao Zhendong, chief engineer of the Defense Work Committee.

Gao Zhendong smiled and said, "Whether it's bad or not, isn't it just high temperature, high humidity, salt spray, vibration and other things? It's not a big problem."

His words reminded other comrades that the "medium-distance medium-speed data transmission" equipment just mentioned could be used here, right?
"Yes, the medium-distance medium-speed device mentioned earlier can be used for data transmission. We just need to develop the software protocol."

"Oh, yes, Chief Engineer Gao has been waiting here for a long time. Hahaha, compared to transmitting hardware, software protocols are much easier to handle."

"And this equipment is low-cost. The cost saved can be used for various reinforcements. Perfect!"

"..."

Listening to the discussion of the comrades, the chief engineer of the Defense Work Committee looked at Gao Zhendong and laughed: "Comrade Zhendong, your work arrangements are really well-connected and connected. It turns out that you have already prepared for us."

Gao Zhendong was stunned. What do you mean by prepared for you? That’s not it.

But he didn't want to dampen his comrades' enthusiasm: "That needs to be changed."

(End of this chapter)