Chapter 807 Improve all functions!
Gao Zhendong didn't know what the results of the "Research and Suggestions" he submitted would be. Anyway, for him, he felt it was necessary to remind him of the extent to which these new things could bring about changes. He is relatively clear.
There may be some things that come to the fore, but there are things that men do and things that they don’t do, so it would be pointless to be cowardly at this time.
He is currently receiving several people, comrades from a unit of the National Defense Work Committee responsible for timing equipment. This equipment is not just for any military branch, but some general equipment.
These comrades were actually the National Defense Work Committee who went back to prepare for the overthrow of military electronic watches after Gao Zhendong released the electronic watch. They were responsible for the specific implementation.
When Gao Zhendong ended the meeting, he specifically told the comrades of the National Defense Working Committee that if he wanted to develop a military electronic watch, he should come to him before starting it. These comrades came to him specifically for this matter.
"General Engineer Gao, after the leaders of our National Defense Work Committee went back, they informed the comrades in the army about the relevant situation of electronic watches. They were very interested in this kind of light, accurate and highly reliable timing equipment, and finally ordered Our unit is responsible for this matter. We are here to learn from you.”
For this unit, the comrades who came to attend the meeting were already leaders.
As for the army, if they want to achieve good tactical coordination, having a set of timing equipment that everyone can trust is naturally one of the basic conditions, so it is natural that they are interested in this thing.
"Ah, yes, I told the comrades of the National Defense Working Committee at that time, please ask the comrades in charge of this matter to come to me. It seems that you have got this task." Gao Zhendong said with a smile.
"Well, yes, it's us. We were also very frightened when we received the mission. The directions we can think of for our efforts are mainly in the dustproof, waterproof, and shockproof aspects you mentioned. There are more directions that we can't think of at the moment. Big catch.”
Gao Zhendong didn't hesitate, turned around and took out a form. He had drawn this form a long time ago and was waiting for today to add all the functions!
"This is the function table of the military high-precision timer I am considering. Take a look at it."
The other party did not expect that Gao Zhendong had already prepared everything, and took the menu with a look of joy.
I was dumbfounded when I saw it. I didn't expect there to be so many. Some of them can be understood at a glance, and some can't be understood at all. There is no problem with the function definition, but the main reason is that I don't know how to implement it.
"Mr. Gao, there are some things here that are easy to handle. We have also considered them, but we are not so systematic."
The other party pointed to the "Basic Functions" section, which includes alarm clocks, timers, calendars, countdowns, and button backlights. These are all easy to understand, and they can even think of how to do them as soon as they look at them.
"Well, there's nothing difficult about the basic functions. But you have to pay attention. The alarm clock must provide a vibrating function, and you can turn off the ringtone, or even cancel the ringtone directly. Sometimes it may not be convenient for comrades who use this thing to listen to the ringtone. "Gao Zhendong didn't want the soldiers to be lurking, but the watch on his hand beeped, specifically reminding him of this matter.
"Okay, we remember it." Not to mention, when the comrades saw the alarm clock, their first reaction was to put the entire piezoelectric ceramic piece on it. Only when Gao Zhendong reminded them did they realize that this thing was a bit inappropriate.
This also reminded them that it seems that the details are really not careless at all.
"Chief Engineer Gao, you mentioned the altimeter here, how to deal with this." The comrade who is engaged in timing equipment really has no experience in this area.
"Just build a small barometer and put it in. In this regard, you can ask the comrades from the 12th Machinery Department for support. They are good at this." Gao Zhendong casually took the matter to the 12th Machinery Department. .
"Calculate the altitude through air pressure, but will this be inaccurate?" Air pressure is not static. At the same location, the air pressure will change when the weather is different.
Gao Zhendong smiled and said: "It's not very accurate, but for the army, it doesn't actually need to be too accurate. For example, at different altitudes, the firing tables of weapons are different, and they have to be selected according to the altitude, but the altitude marked on the firing table , in fact, the granularity is relatively coarse, and it is not really accurate to meters. The same is true for others. For commanders, it is basically enough to know a rough height range.”
"Is the barometer too big?" Some comrades think more.
"It's not a big problem. If it doesn't work, you can make the watch a little bigger. It doesn't even have to be a watch. It can be a timing device in your pocket." This kind of thing is mainly to achieve functions. As for how to wear it, The method is actually not very important.
Gao Zhendong added this thing to the military timer, mainly because he considered that it might be useful on the plateau. The combat area and altitude are not static. Being able to grasp the approximate altitude in real time is useful for the use of weapons. "Can we add an electronic compass?" Now that we have the altitude, can we also solve the problem of orientation? In addition to magnetic compasses, there are also gyrocompasses on ships and airplanes. The comrades have made this idea.
Gao Zhendong shook his head: "The electronic compass is not that small now, and the army has a special multi-functional compass. This function is not very necessary. Let's wait for the technology to develop further. Of course, if you can solve the miniaturization of the electronic compass The problem is not that it cannot be increased, you can decide this yourself.”
The comrade who asked this question was relatively young and stuck out his tongue playfully. It seems that this thing really needs to be put back.
"Chief Engineer Gao, then this automatic timing..." If they can still think about the altimeter, this automatic timing is what they really can't figure out, and they have no idea how to do it.
Gao Zhendong did not answer directly, but asked a question: "Are there any comrades engaged in communications in your research group?"
One comrade raised his hand: "I know a little bit about radio." I really didn't expect that getting a watch would be related to communications. There are really few talents in this field in the team, let alone them, even across the country, Not many people are serious about communications.
Just like later generations often misunderstand that those who engage in DIY are engaged in computer science. These days, if you know a little about radio, you can barely say that you are engaged in communications.
"It doesn't matter if you know a little about radio. You can write down what I said first. You may need to cooperate with the Military Communications Office. This thing is more troublesome. You don't need it at the beginning. When it matures, it can be integrated into the watch."
Hearing Gao Zhendong's words that he was not very confident in them, the comrades who worked on the military watches were a little discouraged. At the same time, they secretly felt that they must make this thing into the military watches.
"To engage in automatic timing, you need several things. One is a timing station, the other is a suitable communication band, the third is a suitable timing protocol, and the fourth is that watches need certain data processing capabilities, especially military watches. Timing signals are required. Consider encryption.”
Please...you...collect_6_9_书_吧 (六//九//书//吧)
Especially the fourth item, timing without encryption means that the enemy can easily send interference signals and disrupt the automatic time synchronization function of the watch.
Comrades were so ambitious just now, but now they are suddenly confused by Gao Zhendong. Is it so complicated?
Yes, let’s learn the same thing one by one. Even if you can’t figure it out right away, at least learn the technique first.
"As for the timing station, if it is a military watch and is only responsible for timing within the battle-level range, it does not need to be too big. The power and antenna requirements are not that high. It can cover tens to a hundred kilometers. With current technology At this level, a timing platform of this size can be used in a vehicle to travel everywhere.”
Gao Zhendong wants to develop this automatic timing service, in fact, it is not just for a few watches, but watches can be regarded as the entry point and the most easily understood application method.
In order to cover as many places as possible without the need for mobility or self-defense, ordinary radio-controlled time stations are not generally large. Taking my country's later BPC as an example, the ground wave range is 1,000 kilometers and the sky wave range is 1,000 kilometers. 2500~3000 kilometers, transmitting power up to 100kW, antenna height about 250 meters.
However, at the campaign level, there is no such high demand. The whole car can just run around.
"Chief Engineer Gao, with such a large communication range, the only way to use long wave is right? The communication rate of long wave is very low. Can it meet the requirements?"
It seems that this comrade is being modest when he says that he knows a little bit about radio. He really knows more than a little bit.
Gao Zhendong smiled and said: "This communication range is actually not very large, but it is indeed planned to use long waves. It can use both ground waves and sky wave reflections, and can achieve very long-distance coverage. As for the specific frequency, choose one from 20kHz~80kHz. Well, you and the comrades at the Military Communications Office should discuss the specific number to choose. I don’t know much about the current frequency band occupancy. Only they will know.”
"As for the communication speed you mentioned, your judgment is correct. The long wave speed is indeed very slow, but it is enough for automatic timing. Let me give you an example, taking 68kHz long wave as an example. I have estimated that 20 seconds will If you can finish sending a timing packet, even if you use a lower frequency, the problem will be solved in one or two minutes, which is no problem for timing. Don't forget that the electronic watch itself is very accurate. If the timing is not received, it will take a short time. The internal problem is actually not big. ”
When Gao Zhendong was working on telemetry systems in his previous life, he studied BPC low-frequency time code timing, but later gave up on that line after using GPS and CDMA timing. However, he still remembered the technology and it was clear and logical.
"As for the timing agreement, you can ask for permission from the National Defense Work Committee, communicate with the comrades who are working on the tactical communication protocol, and add the timing agreement to the tactical communication protocol." Gao Zhendong gave them an idea.
(End of chapter)