Chapter VI Naval Army Development Plan Telephone exchange

After Lin Zongwei came, everyone sat down separately after being polite.

Lin Zongwei said: "It just so happens that Mr. Zhang is here, otherwise I have something to go back to see you in the next few days!" ”

Fan Chengkun took over and said: "That's the case, I have discussed some things with Director Lin, and I am preparing to go to the kiln!" ”

"Good! I have something to talk to you about. Zhang Zhimu asked, "Our new ship is starting to dry, right?" ”

Zhang Zhimu asked about the plan to build two new warships according to the pattern of the two newly launched warships.

"It's already been done, those two are not finished, what we can do on the shore will start to work, as long as Li Yunhe's boiler and steam turbine don't delay the construction period, we may be able to launch in the second half of the year." Lin Zongwei said, "Now our welding workers are also ready, and the cutting machine has also improved a lot of efficiency, and the blanking is accurate and fast." We can weld many components on the shore and then hoist them onto the ship for welding. It is much more convenient to have a gantry crane. ”

"Actually, you can do the same, if the welding technology can pass the test now, we can divide the ship into sections and weld it on the shore, and then use a large gantry crane to lift it to the dock and then weld it, so that the efficiency is higher." Zhang Zhimu said. But he can't say that in his previous life, the ships were built like this.

Lin Zongwei patted his head and said, "That's right! We can divide the ship into sections and weld them together. However, that requires too much precision for each segment. The pipes inside need to be designed in advance. It's not like we can modify and adjust it at any time now. ”

"That's right! In that case, the requirements for our design level and shipbuilding level will be higher. Zhang Zhimu said, "You can study this kind of thing with Mr. Lu Bingyi in the future." If we can reach this level, our shipbuilding efficiency will be much higher. ”

"Good! Sooner or later, this will be done. Lin Zongwei said: "In order to build passenger ships, we built a new dock. Mr. Lu invited Li Di and Yang Chang to participate in the design of this passenger ship. This time, as you suggested, build the steam turbine and generator on a floating raft. In this way, vibrations cannot be transmitted to the hull, and propellers driven by two electric motors are installed at the rear of the passenger ship. Such a propeller can not only be easily adjusted, but also can be easily rotated in the direction. We also installed a small propeller on the left and right sides of the front of the boat, and it was much easier to turn with these two small propellers. With the cooperation of four propellers, the boat can move flexibly forward, backward, left and right, and it is easier to rely on the help. The main thing is that passenger ships can be almost noiseless. ”

"Great! If this boat is successful, it will be more comfortable to go out and take the boat in the future. Zhang Zhimu said, "We can build a passenger ship of 10,000 tons or even 20,000 tons in Zhenjiang according to this method, so that we don't have to suffer so much when we go to Guangzhou, Quanzhou, and even Nanyang." ”

"Mr. Zhang, according to our current capabilities, as long as the steel is enough, it is not too difficult to build a 10,000-ton ship." Lin Zongwei said, "If only we could build the railway to Zhenjiang." Our steel can be shipped straight through. Boilers and the like can be cut into several pieces and shipped over. ”

"Huh! There will be such a day. Zhang Zhimu said.

"Yes! However, Mr. Zhang, our current ship is completely different from the previous ship. Let's just talk about this passenger ship," Mr. Lin said, "and the pipes and cables inside are like spider webs." I couldn't have thought of it before. ”

"Wait! Our new technologies are constantly emerging and will be used on your ships in the future. I'm going to suggest you put a diesel generator on board. In this way, your ship will be shut down when it docks, and you can use diesel engines to generate electricity. Isn't that more convenient? Zhang Zhimu suggested.

"Good!" Lin Zongwei said, "But in the future, you will have to carry diesel fuel on board." ”

Fan Chengkun looked at it almost, so he got to the point and said: "Mr. Zhang, regarding the construction of our navy, I have consulted Mr. Lu Bingyi and discussed with Mr. Lin Zongwei. There are a few ideas I'd like to share. ”

"Good! You have the best ideas, much better than I want alone. Zhang Zhimu said.

"That's right, Mr. Zhang. We feel that now that these two warships have been built, we are ready to build two more. In this way, whether we are in the Yangtze River, the Yellow River, or other waters, including the coastal areas, our naval forces are sufficient. But we also know that your goals are definitely not these. You have solved the internal affairs of the Ming Dynasty, and you will definitely want to go to the sea. Therefore, we suggest that when we do not have access to the sea, we should build a bigger ship in Zhenjiang to prepare for the ocean. Director Lin has some ideas about building a big ship and wants to talk about it. ”

Listening to Fan Chengkun's words, Zhang Zhimu was very happy in his heart, and couldn't help but blurt out: "Commander Fan, I didn't choose you wrong, you have foresight, this is the talent of a general." Regardless of Fan Chengkun's embarrassment, Zhang Zhimu said again, "Your judgment is very correct, needless to say that we have seven steel-hulled ships, and our two renovated Fu ships will defeat Li Zicheng's navy." With seven of these ships, the coasts and rivers are our sphere of influence. When we march into Liaodong in the future, we can either attack by road or directly by sea. We can also attack their hinterland directly along the Liao River. Later, if you encounter any Japanese and Franky warships at sea, you can lift them into the sea. That's when the power of our steel-hulled warships will be revealed. Otherwise, there would be no need for us to build so many warships. ”

Zhang Zhimu's words made Fan Chengkun and Lin Zongwei see a different Zhang Zhimu. The Zhang Zhimu in front of him is suddenly no longer the person with a polite smile on his face, and now he is an ambitious emperor. Even Yang Yulin suddenly felt that Zhang Zhimu was different all of a sudden.

Everyone was a little stunned, Zhang Zhimu returned to his old appearance, and said with a smile: "Of course, all of us need to work together, and we need to take our time." Mr. Lin, tell us what you think! ”

Lin Zongwei, who made Zhang Zhimu say something just now, was also excited, and he didn't know where to start. He drank the water for a while, put down the water bowl, and said, "That's right." We are now ready to design a big ship to be built in Zhenjiang. If it is built according to the original ship, there is no need to start from a new design, we have ready-made drawings at home, which are well preserved. However, if we want to build a fishing boat, and we need to use steam-powered boats, and we need to use the trawls you mentioned, we need to make a lot of changes. I think this ship will also be tasked with testing our ideas. My idea is that in the future, our ocean-going ships will need to go a long way at sea, and it will be very difficult to replenish on the way, and we will have to carry a lot of coal and water. But no matter how much you bring, it won't be enough without supplies. I think it's important to save coal water. Especially at sea, if there is a crosswind and a tailwind, there is no need for power at all, and if there is a sail, it is enough to sail against the wind. That's why I suggest that all our ocean-going ships build steamships with sails. When driving against the wind, we can use steam power. In addition, I suggested that we now have good steel and electric power, and that we could build a mast that could be raised and lowered. When the wind is upwind, the mast is lowered. Rise again when needed. ”

"It's a good idea," affirmed Lin Zongwei's idea, and Zhang Zhimu added, "but our lifting mast and sail rigging will have to be redesigned." The lifting mast can be made into several round pipe telescopic types, and can be raised and lowered in both electric and manual ways. For easy stacking, it can be made into a soft sail. It's best to make a cabin where you can put the sail line directly. When not in use, the silo cover does not affect other work on the ship. These things are not simple, I suggest you build an experimental device on land, and see if there are any problems when using it on land? No problem, use it on board again. ”

"Good! It's a solution," Mr. Lin said, "and we're going to build a refrigerated ship, so we don't need sails." The refrigerated boat should be as big as possible to bring fish caught at sea back to land. But we also need to build a few refrigerated boats that can pass through the canals and the Yellow River, so that we can transport the frozen fish to Shanxi. ”

"We have a shipyard and can arrange many shipbuilders." Zhang Zhimu said, "There are a large number of skilled people on both sides of the Yangtze River, and they will all have food to eat in the future." Hehe! In addition, we will use alloy aluminum to build diesel-powered gunboats in the future, and these gunboats will be very useful for our inland river operations. Our main problem now is still in the territory of the Ming Dynasty, and I hope to solve these things as soon as possible, and then we will look far ahead and solve the problems overseas. Fortunately, Commander Fan has thought things ahead, and I am really very happy. ”

The conversation with Zhang Zhimu can always make people feel inspired and insightful, which is the common feeling of Fan Chengkun and Lin Zongwei. Zhang Zhimu is an easy-going person who can say anything in their eyes, and he is also a person who often makes them feel very awe-inspired. This person is mysterious and incredible, and it makes people feel that they are just like friends around them. At this time, people did not yet know that there was a word for "charisma". But they know one thing, and if they follow Zhang Zhimu, they will get better and better.

Zhang Zhimu returned home and told Huang Yukun that when he asked the paper mill to produce hand paper, Huang Yukun and his cousin laughed non-stop.

My cousin smiled a little and said with a straight waist: "How can there be a leader like you, who still cares about and wiping his feet?" Hehe! ”

"What's this?" Zhang Zhimu said, "This is a manifestation of the progress of civilization. Zhang Zhimu saw them laughing, and suddenly remembered the kind of sanitary napkins that women used in their previous lives. He also said that in the future, he could produce that kind of sanitary napkins for women to use during menstruation.

As a result, Huang Yukun waved his hand and said, "Yes, don't go out and talk about this." Otherwise, we won't be able to go out and meet people. ”

"What's that?" Zhang Zhimu said, "Now that we have progressed, with clean and hygienic sanitary napkins, we can make women less sick, what's wrong?" If we give birth, all women in the world will benefit, which is a great thing. ”

"It's a good thing, but you're a big man who goes out and talks about it and makes people laugh." Huang Yukun said, "You draw me a look, tell me what to make it with, and I'll just let people produce it." Don't go out and talk about it. ”

"Oops! As much as you want. Zhang Zhimu said, "I'm not afraid, what are you afraid of?" Okay, listen to you. ”

"Behold! You'd better find a way to deal with those people pooping and peeing everywhere! Huang Yukun said, "We spend a lot of manpower cleaning up the garbage every day, but it is not clean. There's just no way, this person will not feel himself. There are bins, they don't use them, and they just throw away whatever they have. ”

Zhang Zhimu knows that although the kiln is developing rapidly, people's ideology is far from keeping up. This must raise the ideological awareness of everyone, and at the same time there must be punishment.

"I'm going to ask Editor-in-Chief Fan to come over tomorrow and start a discussion in the newspapers and on the radio about how to raise everyone's awareness of hygiene. Let everyone discuss it, and then work out punishments. Zhang Zhimu said, "It is very difficult to prohibit open defecation, spitting, and throwing garbage away." First of all, we need to make everyone aware of the importance of this issue, and then formulate punishment measures so that everyone will not be disgusted. Otherwise, everyone will feel that they have lost their freedom again. In that case, everyone will be disgusted, and good things will not be done. ”

When I went to study the switch with Yangchang again, Zhang Zhimu also told Yang Yulin that there was no major matter, so don't bother me.

Yang Yulin snorted and said, "Okay! There is no need to command such things later. ”

"Yes, yes! I won't talk about this later, you are my first line of defense. Zhang Zhimu said complimentingly.

Yangchang and they regarded listening to Zhang Zhimu's lectures as more important than anything, and everything could be stopped, but Zhang Zhimu told them that this time it was not a lecture, but a matter of everyone working together to develop an automatic telephone exchange.

Zhang Zhimu first put forward a rough plan this time. In the previous life, the program-controlled exchange of telephones had already been realized. It has gone through the two stages of step-by-step exchange and vertical and horizontal exchange. At present, there is no condition to realize program-controlled exchange, but Zhang Zhimu does not want to start again from the step-by-step and vertical and horizontal systems. Because Yangchang they already have a group and have a little bit of a foundation for digital circuits. Zhang Zhimu wanted to use some digital circuits and relays to realize automatic telephone exchange.

First of all, the telephone should be able to dial the number. The kind of dial-up telephone in his previous life, Zhang Zhimu is very familiar with it. There are ten digital disc dialers on the telephone. Its function is to generate a string of uniform pulse signals according to the dialed number when dialing.

The difficulty is on the switch side.

Zhang Zhimu wanted to build a four-digit number switch first, the first digit is the bureau number, the second digit is the group number, the third digit is the group number, and the fourth digit is the telephone number.

Zhang Zhimu wanted to use a ten-digit shift register to store the first number. Then decode a bureau number. For example, if the number dialed from the telephone is 5469, then the first number. Five pulses are emitted, the first of which shifts the register, and according to the shift pulse, moves the five-bit memory in the register. Then, after parallel output, the decoding output selects a signal line pointing to the fifth bureau, and selects a shift register of the fifth bureau; The second number, which is selected in the shift register of this fifth round; The third digit selects the group number; The fourth digit selects the telephone number. The selection action is carried out by relays. Of course, there are many logical problems here. For example, pick up the telephone, if there is a line, it will give the telephone an audio signal, and if there is no line, it will give a busy signal, if in the process of dialing, there is a person who is not selected or the line is busy, you must give the phone a busy signal. Dial it up and wait for a ringing signal. And so on, and many more specific questions. Zhang Zhimu only gave a general principle.

Zhang Zhimu knows that such a switch can be easily changed to various sub-bureau exchanges and long-distance exchanges in the future.

However, the exchange idea that Zhang Zhimu told Yangchang and them is still easy for everyone to understand. But Yang Chang asked, "Such a switch will require a lot of tubes, will it affect reliability?" ”

"Of course, there are reliability problems, which requires you to take into account the reliability problem when designing, and do not affect the whole machine because of a problem with a certain electron tube or other devices. A backup design is also possible. Mr. Zhang hurriedly said, "What I will tell you is an idea, and specific problems need to be solved by you in the process of development." You have to look not only at four-digit switches, but also at three- and two-digit switches. Because we Yaogang Hotel, we don't need to have an external line connecting the phone in each room to the outside. Most of them are internal calls, if you call an external line, you can dial a 0 to connect to the external line and then call. Most of our units also have internal calls, and we just use a small switch. The next step is to look at the switches for long-distance direct dialing. ”

This kind of task is the task that Yangchang and his brothers are most interested in. After Zhang Zhimu finished speaking, he discussed it with them and handed it over to Yangchang and them about the exchange.

After the class, when they returned to their office in Yangchang, Yangchang said: "Mr. Zhang, the FM radio transmission effect we made is really good. We're going to add an FM station to the radio station, what do you think? ”

"Okay!" Zhang Zhimu said: "At the same time, you also have to produce radios that can receive FM radio. However, the FM station has a limited transmission distance, so you have more power. Have you finished installing the broadcasting equipment you installed in Xi'an? ”

"It's almost over," Yang Chang said, "the people in Xi'an are not well prepared, otherwise it would have been over." Now the people they organized have to go to the kiln to learn and train. We're assigning some people to them. But no one wants to go! ”

"The people sent can be rotated every year until the personnel of their Xi'an radio station are trained."

"I think that's the only way to do it," Yang Chang said, "and there are problems not only with our transmitters, but also with broadcasting." ”

"Okay, about broadcasting, I'll go find Editor-in-Chief Fan and them." Zhang Zhimu said, "There is one more thing I want to tell you. Now we use electricity more and more. Our civil electricity is generally low-voltage electricity, but it is also very dangerous for electricity people. I often need to determine whether there is a charge on the line or on the conductor, right? ”

"Yes! We generally need to use a voltmeter to check. Yang Chang replied.

"That's inconvenient," Zhang Zhimu said, "and now Master Qingfengzi has separated neon from the air, an inert gas. This gas emits red light easily in an electric field. You can fill a small glass bubble with neon gas, add electrodes to the ends, and connect a one-megaohm resistor in series. Use this neon tube to connect a metal at one end, generally made into a screwdriver bit, and the other end can be made into a pen cap row, and the metal connected to the pen cap can be in contact with our hands. We use this screwdriver bit to touch the object to be measured. If there is electricity, then the neon tube will shine, and without electricity, it will not shine. If there is alternating current, both ends of the neon tube will glow, and one end of the direct current neon tube will glow. However, such a pen can only test voltages between 60V and 500V. No matter how high the voltage is, it is easy to be electrocuted, and it cannot be measured if it is low. ”

"It would be great if there was such an electric pen, the neon tube is connected in series with a megaohm resistor current, and the current is very small, and it is safe for people to use." Yang Chang said, "However, if this neon tube can emit light, can it also be used as a general live indicator?" ”

"Of course you can," Zhang Zhimu said, "and you can use neon gas to make neon signs in the future!" ”

"Great!" Yang Chang suddenly remembered one more thing, "Mr. Zhang, the white phosphor made of phosphorus and other things you asked them to make in the past, they finally got it, do you want to take a look?" ”

"What? The white phosphor has come out! Why didn't you say it earlier. Zhang Zhimu has been waiting for this news.

-------------

Mt. Fuji erupted, Japan was earthquaked. --Progress of "Memories of the Southern Song Dynasty".