Chapter 412: Gold Switch, Silver Switch, Iron Switch
Gao Zhendong looked at Chief Engineer Feng, who was recruiting friends and companions in front of him, and brought a bunch of lustful subordinates with him, and he couldn't laugh or cry.
You are too proactive. Not long after the last time you went back, the software documentation standard work in charge of your Communications Institute has been completed?
In response to Gao Zhendong’s question, Chief Engineer Feng said: “It’s not finished yet, but we have dedicated comrades responsible for that work. Chief Engineer Gao, we are a research institute, something like a research institute. We still need to have more personnel. The comrades here are the backbone of our Telephone Research Institute. You can use them however you want."
In Comrade Lao Feng's words, he did not forget the Yin and Yang Calculation Institute. , Generally speaking, this is indeed the case. In most cases, the resources and scale of institutes set up in colleges are not as good as those of colleges.
But this kind of thing is not necessarily certain. Some are relatively independent or work in a special way, and the size is actually a matter of scale. For example, the administrative level of the Computing Institute is actually the same as that of the Institute of Communications.
Since they have arranged it this way, and there are indeed people in charge of related matters, Gao Zhendong will just go with the flow. Does he question whether they have enough manpower?
Let’s get started.
"General Manager Feng, okay, let's start informally first and discuss it internally. Did you bring the current status of telephone exchange materials that I asked for last time? "
Mr. Feng took out a piece of material and handed it to Gao Zhendong: "It has been prepared for a long time. Chief Engineer Gao, come, take a look first."
Since they are so eager to start, they must be well prepared.
Gao Zhendong took it and frowned while looking at it.
Don’t frown on the number of switches and other situations. It’s not that these situations are optimistic, but that you already know that these situations are very bad and have psychological expectations.
Needless to say, no one has a program-controlled switch now.
Most of the switches in use are manual switches, the kind that require an operator to pull the plug. There are a small number of control switches left, which are the previous generation of program-controlled switches.
However, the number of deployed and controlled switches is very small. Except for some equipment before liberation, there has not been much progress after liberation.
These deployment and control switches are also of various types. Among the deployment and control switches, there are a few more advanced vertical and horizontal systems, but there are more older stepping systems, rotation systems, and lifting systems. Gao Zhendong is suspicious of these things. It's just on the register, but not used because the compatibility is really poor and they can't be put together.
Even Gao Zhendong can see that in order to maintain compatibility and availability, except for a few machines that can barely be connected to the grid, these switches have been replaced and replaced by manual switches.
Basically, at this time, artificial switches dominate the world or are absolutely dominant.
The reason why I say absolute advantage is that in addition to the old machines mentioned above, there is still a unique one, that is, there are still domestic switches that imitated the Laomaozi 47 switch in 1951. This is a The switch that combines the lifting system and the rotating system is not even a vertical and horizontal system. The disadvantages are loud noise, slow movement, easy wear and tear, and difficult maintenance.
As for the actual usage, it’s hard to say.
The price of this thing is not ordinary, and the structure is outrageously complicated. From the fact that this thing does not have a more formal domestic model name, we know that its actual usage is not optimistic.
There is nothing we can do about it. After the founding of the People's Republic of China, Western channels were blocked, and the price of these things was not cheap. Even if they were opened, they would not be affordable. Switches are indeed in full bloom in the West at this time.
As for Lao Maozi, he is a weak chicken in this regard, so naturally he cannot help much. Why is he said to be a weak chicken? Just look at the 47 posture above.
It’s been 47 years, and a new rotating system + lifting system has been developed. You must know that by this time, countries such as Citigroup had already turned to the vertical and horizontal system.
If this Type 47 is calculated based on the scale of 10,000 doors, a total of 11,000 rotary selectors, about 5,000 ascending selectors, and 60,000 flat relays are used.
If these data are not so exaggerated because of the scale of 10,000 doors, then look at the size of these parts and you will know why everyone likes to say that Lao Maozi’s things are stupid, big and thick.
ЩИ-11, ЩИ-17 type rotary selectors, each one is 78~80 mm high, 33 mm wide, 100 mm deep, weighs 275~300 grams, one and a half pounds!
ДШИ-100 lifting rotary selector, a single height 100 mm, a width 140 mm, a length 140 mm, a weight of 900 grams, one two pounds!
РПН type flat relay, a single relay is 25 mm high, 35 mm wide, 105 mm long, weighs 170~190 grams, one relay can be used in two or three units!
The funniest thing about this thing is that the earliest translated name was not called an automatic telephone exchange, but called an automatic telephone exchange "bureau"!
Think about it, even if it is not as big as a bureau, it cannot fit this thing.
Do you know why it is said that the effect of imitation of this thing is not good?
This quantity, this head, this volume, this cost, in the early days of the founding of the People's Republic of China when everything is waiting for improvement, forget it, let's just use labor.
And later, even this imitation may not be able to be produced. After all, successful imitation ≠ national production.
But what made Gao Zhendong frown was not because of this, but because apart from the existing models and quantities, there was very little other data.
For example, there is no relatively detailed data on call volume. There is only some data on the number of calls made by each office. However, the real call volume evaluation is far from that simple.
Generally speaking, the traffic data used for equipment research and development refers to the traffic volume in the busiest hour of the day, also called busy hour traffic. This "busy hour" refers to " "The busiest hour" rather than "the busiest time", there is still a difference between the two.
The calculation method is to multiply the average number of calls per unit time by the average duration of each call. If both units are based on hours, the former is "calls/hour" and the latter The latter is "hour/call". Once it is multiplied, something goes wrong and the appointment is lost. So another unit was introduced, called "Ireland", abbreviated as E. This does not mean a country.
However, there is no relevant content in the material Gao Zhendong has. If it is normal to say that unit E does not need to be considered because of its origin, but there is no calculation of call traffic, then there is obviously a problem.
Voice traffic involves the determination of the size of the switch and the multi-level selection and matching of the switching network. It is a basic data.
If we don’t even have this, then there is no way to talk about other data such as call loss, line group utilization, line group utilization, etc.
Although Gao Zhendong was surprised, considering that most of the exchanges were manual at this time, he was relieved. Generally speaking, operators don't have the time to count the length of your calls.
Looking at Gao Zhendong’s expression, Chief Engineer Feng knew that there seemed to be something wrong with this data.
"General Engineer Gao, is there anything wrong with this data? The current situation is indeed not optimistic, but the data is still relatively complete."
Gao Zhendong can't say that your data is not complete enough. After all, the conditions are In this way, the comrades of the Institute of Communications also tried their best.
Forget it, just like the laser gyroscope, let’s start with the basics.
"Well, it is very complete, but some statistical calibers need to be adjusted. In this way, I will give you some relevant principles, and ask comrades to work hard and make statistics according to the above principles."
Gao Zhendong said it very tactfully.
He turned around, went to the safe and made some appearances, and then took out the first few pages of the program-controlled switching textbook. Just for these pages, he used up another lottery draw.
"Mr. Feng, take a look at this and see if you can adjust the relevant data." After speaking, he handed these basic definitions and calculation methods to Mr. Feng.
These basic definitions are very simple, and the calculations are not complicated. At least after Gao Zhendong laid out all the formulas, the comrades of the Institute of Communications basically understood them at a glance, even if they couldn't understand them temporarily. Ask Gao Zhendong on the spot and you will understand.
Just these few pages of the manuscript impressed Chief Engineer Feng. I originally thought that Chief Engineer Gao was only strong in computers and automatic control, but after looking at these few pages of the manuscript, he also had a very good understanding of communication networks. Deep.
This batch of parameters is not complicated, but it is a good measure of the most basic working status and performance of a telephone network.
The only problem is that he finally understands why Chief Engineer Gao is frowning.
The data I brought cannot hold up!
No matter how simple the statistics and calculations of data are, they must have basic data for processing. After Lao Feng figured out the calculation method of Gao Zhendong's parameters, he immediately realized that there was a lack of basic data.
But as the chief engineer of the Communications Institute, he has the courage and qualifications to make sudden decisions.
"General Engineer Gao, I took a look and found that our current basic data cannot support the statistical results you want. In this way, give me a month, and I guarantee that the data of various typical telephone bureaus will be Bring it to you.”
In his view, telephone bureaus of various levels and sizes at county bureaus, prefectural bureaus, and provincial bureaus must have relevant data, so we are talking about various typical telephone bureaus rather than core bureaus.
As for the method, it is simple. Send a notice, and the operator in a typical office will record it carefully every day, and then perform deduplication statistics. The data will definitely be available within a month.
Gao Zhendong agreed to this arrangement and was not in a hurry at this time.
"Well, thank you, Mr. Feng and all comrades. Although these data cannot be obtained at the moment, some work can still be done first without delay."
Feng When the general manager heard what he said, his faces were filled with joy. He originally thought it would take a month to get started, but he didn't expect that he could do something first to save time.
"Please ask Chief Engineer Gao to make arrangements."
Gao Zhendong did not arrange the work first, but asked a question first.
"In my plan, there are three types of program-controlled switches, air division switches, time division switches, and digital switches. Which one do you want to choose?"
Gao Zhendong said this , I felt like I was asking, "Do you want this gold axe, a silver axe, or this iron axe?"
(End of this chapter)