Siheyuan: I eat melons while doing scientific research

Chapter 1090 Short Distance and Low Speed

The dean smiled and said, "What are you afraid of? Commissioner Gao is not afraid of us making any mistakes. He will give us a chance, and we just need to seize it."

Compared with Director Hou, the dean is more at ease in such occasions. They are just leaders of ministries and commissions. He has met them before, although he usually does not meet so many of them at one time.

He knew very well that this was the opportunity given by Commissioner Gao, and that he was responsible for covering the bottom line. The comrades on his side only needed to report the work done one by one. Commissioner Gao knew when his comrades should take the lead and when it was not appropriate.

Since he took the initiative to invite us, it means that the comrades' work is fruitful and satisfies him.

So what are you worried about? All you need to do is do one thing: not be stage-frightened.

With the dean as a stabilizer, Director Hou felt relieved. He was mainly afraid that if he didn't do his job well, he would bring shame to the unit and Commissioner Gao. The dean's words reminded him that if Commissioner Gao could take the initiative to invite him, it meant that there was no problem with the job in essence, and the rest would be easy.

If there were any small problems, the dean and senior committee members would naturally provide a guarantee. In fact, he had covered for his colleagues in his department before in such matters, but he was a little uncomfortable when he was the one who needed to provide a guarantee, mainly because the level of the meeting was a little high.

On the contrary, Xue Chongli does not have so many ideas. Those with the most ideas are usually Director Hou in the middle. They are relatively calm at the higher levels and cannot feel the people below.

Xue Chongli was just looking at the large crowd of people at the scene with great excitement. He even saw two other classmates, Lin Lianwei and Su Weihua, who were said to have gone to some unknown unit.

The two were also very happy to see him. They had heard Gao Zhendong say on the phone that Lao Xue was in Beijing, but today was the first time they met him in person. Especially Su Weihua, this brother's work unit was not based in Beijing.

"I'm finally able to meet you. I just heard from Lao Gao that you were in Beijing not long ago. I didn't expect to meet you today. Haha." Lin Lianwei was still as noisy as ever. He came up and gave Xue Chongli a bear hug, but he was much shorter than Xue Chongli, so he looked a little funny.

"This is all thanks to Zhendong, otherwise I really wouldn't be able to come back to see you." Su Weihua patted Xue Chongli.

Several people gathered together talking and laughing, which was a special scene in this conference room.

"Let's ask Old Gao to host the reception later and we'll have a good meal together." Lin Lianwei smiled. He had the most contact with Gao Zhendong and he had the most outgoing personality, so the arrangements were very natural.

"Isn't this bad?" Xue Chongli said.

Su Weihua also smiled and said, "It's okay, it's okay. Zhendong likes to arrange this matter. Factory 1201 is also his territory, which is perfect."

"His territory?" Xue Chongli was a little confused.

"Yes, he has a position here, so there's no need to worry about him." Lin Lianwei actually didn't know what the position was.

"Eating and drinking on public funds?" Xue Chongli was a little worried about Gao Zhendong.

"What do you mean by eating and drinking on public funds? He has to pay for it out of his own pocket. Don't worry about him, he knows what he is doing. He is a rich man. Let's take advantage of him today, haha."

Next to the crowd, there were five computers lined up, and there didn't seem to be anything strange about them.

But everyone knows that the highlight of today may be on these 5 computers.

While they were chatting and laughing, Gao Zhendong also came in, bringing with him his comrades from Factory 1201.

He first greeted the leaders of the ministry, then said hello to everyone before sitting down.

He got straight to the point as soon as he opened his mouth: "Leaders, comrades, I have invited you all to come here today from your busy schedule for one thing: to show you our new progress in short-distance high-speed communications with computer applications as the core."

A speed of 1Mbps will be considered super weak in the future, but in this day and age it is extremely fast. It is really extremely fast. As for what is extremely fast, everyone will know soon.

Gao Zhendong's words excited all the comrades present. The progress that he called "new" must be truly new, and not just some minor tweaks and changes.

Those who know him well know that back then he didn't even think much of things like monitors, keyboards, and even printers, and didn't think they were "new."

Short distance and high speed, these two definitions are very important. This is why Gao Zhendong did not call the Postal and Communications Commission. This thing has nothing to do with them. Their job is the backbone large-scale long-distance communication network, and in this area, the 12th Ministry of Machine Building has more things to do.

When the leader of the 12th Ministry of Machine Building heard this, he felt that he had come to the right place today. Although he could not figure out how to use the high-speed communication between computers, he thought it was a good thing as soon as he heard about it.

But what was even more excited were the group of people Gao Zhendong specifically invited - the institutes under the Defense Work Committee, including the Institute of Military Communications, who were racking their brains over this matter.

Just when the comrades were waiting for Gao Zhendong to make the next introduction, Gao Zhendong himself stepped down in favor of others.

"We have two projects in this regard, and both have achieved gratifying results. Now, let the Information Technology Department of the Institute of Water Resources and Hydropower Science and Technology, which is responsible for the short-distance, low-cost, and low-speed industrial communications project, report to you on the progress of the relevant work."

He even did two at once! The leader of the 12th Ministry of Machinery turned around and said to Gao Zhendong who had just sat down: "Hey, you, why are you wasting the time of the comrades from the Water Conservancy Department? We have already done this in our department. Don't bother the comrades from other ministries next time."

He said it was a "waste" of time, but what he meant was that he was very unhappy that the 12th Ministry of Machine Building did not waste this time.

Gao Zhendong laughed and said, "It was a coincidence, a coincidence, haha. At that time, there was a sensor for water conservancy that needed this thing, so I taught them how to make it."

It's true. Gao Zhendong hadn't originally considered who should make this thing. It just happened that the water conservancy department's collection equipment and sensors needed this thing, so he handed it over to Xue Chongli and others.

"Hey... my major is not suitable for you. My major is not suitable for you."

Amid the complaints of the leaders of the 12th Ministry of Machine Building and the suppressed laughter of the chief engineers of the two ministries, Xue Chongli began his report.

Following Xue Chongli's slightly excited report, the comrades once again realized that Gao Zhendong's "slow speed" and the slow speed in their minds were completely different things.

"Low speed? This thing has such a high speed, how can it be low?"

"Yes, the speed is very high. I think the dual-tone multi-frequency communication that Commissioner Gao and the Postal and Communications Commission developed is low speed." Indeed, the speed of DTMF communication is indeed low, a few bytes per second, but the advantage is that long-distance communication, command encoding and decoding, and control are directly integrated.

"19200bps! Is that a low speed for Chief Engineer Gao?"

"Don't think about it. The world that Chief Engineer Gao sees is different from ours. You know that."

"..."

While other comrades were still amazed at the speed of this device with a somewhat difficult-to-remember name, some comrades were already extremely excited.

This thing is great. As long as there is a reliable communication distance of 50 meters, this kind of equipment will have great potential. To put it bluntly, even if it is 10 meters, the worst that can happen is to add a few repeaters in the middle at a high cost, and it can still be used.

Xue Chongli continued his report: "...According to Chief Engineer Gao's initial design, under his guidance, we have completed the design, debugging and testing of discrete component assembly equipment in the first step. Under current conditions, using twisted pair cables with specified parameters, the reliable transmission distance at a speed of 19200bps exceeds 1000 meters..."

The scene exploded with a loud bang.

1000 meters? Short distance?

19200bps? Low speed?
The leaders of the 12th Ministry of Machine Building were convinced of one thing at this time: Gao Zhendong would not give a name.

He turned around and said to Gao Zhendong, "Comrade Zhendong, next time, just leave the naming to the pens in the department. Don't waste your energy on it."

Gao Zhendong was confused. What's wrong with my name? My name Changying Changhe is so good.

However, he did not discuss the matter with his superiors because the atmosphere had become heated and many comrades asked Xue Chongli questions, making Xue Chongli, who did not have much experience in reporting, a little overwhelmed.

Fortunately, Gao Zhendong did not need to take any action. Director Hou of the Institute of Water Conservancy Science and Technology stepped forward and took over a lot of the conversation. With Xue Chongli's technical support and his experience as an aid, he was able to cope with the enthusiasm of his comrades.

The happiest people among them were the comrades who were working on complex and large equipment such as airplanes, tanks, and cars. If the comrades who were working on missiles could do without this thing when the missiles were not big enough or their functions were not complex enough, then this thing would have many more benefits for large equipment with complex systems.

Especially when it needs to be combined with a computer-based control system.

"This is great. With this, we can place control equipment and sensors anywhere on the aircraft and connect them at high speed."

The comrades from the China Aviation Industry Corporation were all very happy. In fact, not only the China Aviation Industry Corporation, but also representatives from other aircraft research institutes had the same feeling.

If you must say, analog channels can also achieve similar functions, but in terms of automatic control, in most applications, everyone knows the difference between analog and digital, and the latter has too great an advantage.

And most importantly, an analog channel can often only transmit one data path, but a digital channel is different. This is very important in reducing the size and weight of the equipment, and it can also reduce costs.

As digital devices develop, they are often much cheaper than analog devices with the same functions.

When comrades from various aircraft research institutes looked at this thing, it seemed that many ideas floated through their minds, but they couldn't grasp the main point for a moment.

Xue Chongli's subsequent report resolved the last doubt in the comrades' minds: Why is this thing called low-cost and industrial?

"…We are currently designing this device as an integrated circuit and using the characteristics of integrated circuits to further expand the application of this device to areas such as high temperature, high humidity, and strong vibration…"

(End of this chapter)