Chapter 52 Successful Long-Range Data Communication Development of a database fax machine

After Emperor Chongzhen and others followed the Taishan for a while, they returned to the Zhenjiang base and changed to a passenger boat to go up the Yangtze River. Fan Chengkun and other generals of the navy followed the three warships to Quanzhou Port, the largest base of the navy.

The flood water on the Yangtze River has just receded, and the water level is still very high, which is still a good thing for boats.

Lin Zongwei also came by boat this time, mainly to see the progress of the construction of the Hankou shipbuilding base.

When the passenger ship passed by Yingtianfu (Nanjing), Lin Zongwei pointed to the shore and said: "Mr. Zhang, our shipyard in Yingtianfu (Nanjing), the dock where Zheng Chenggong used to make treasure ships has been cleared out, and after transformation, we can quickly build a 20,000-ton wooden ship." Of course, our current wooden boats are also steel welded keels, plus steam power! ”

"Mr. Lin, we need some big ships that can follow our warships to the sea, so that we can play the role of our warships. Our ships are on their way, and we must be followed by a large contingent of merchant ships. Zhang Zhimu said, "Also, our ocean-going fleet is different from those pure sailing ships, they need to provide coal water, and some also need to provide heavy oil!" This requires the presence of supply vessels. ”

"Regarding the matter of the supply ship, we studied it with Commander Fan a few times. We thought that now we could just cover the armor with wooden boats. After all, when there is a naval battle, our supply ships do not need to rush to the front line to fight. We are already preparing to build a 5,000-ton ship to pull heavy oil for the Taishan. If our whole fleet goes on an expedition, we can supply the fleet with coal with a 20,000-ton ship. In fact, it is no problem for our coal-burning ships to get coal supplies. Our warships have been refitted, and they all have wood crushers on board, and it is okay to blow wood powder into the boilers without coal. ”

"One more thing, we have to take time to study it with Commander Fan, we also have the ability to supply materials without docking at sea!" Zhang Zhimu said.

"When the sea is not stormy, two ships can rely on the help to resupply. Not when the waves are big! Lu Bingyi said.

"We need to solve the problem of replenishment in the event of a certain wind and waves." Zhang Zhimu said, "We can connect the steel cable by connecting the two boats, and use the cable car to transport the materials through the steel cable. ”

"This can't be done, both ships are moving with the wind, the steel cable is thin and easy to break, and if it is thick, it is easy to destroy the fixed position on the ship." Lin Zongwei shook his head and said.

"Actually, it's not difficult, we can get a tension controller on the ship to control the tension of the steel cable within a certain range." Zhang Zhimu said.

"If only we could solve such a problem, of course!" Lin Zongwei said, "We also have this problem when we collect fish at sea. At that base in Quanzhou, we are building a ship that you mentioned can process canned fish, and we are also facing the problem of collecting fish at sea. ”

Referring to the matter of fish, Zhang Zhimu said to Lu Chengxiang: "Mr. Lu, we must pay close attention to the construction of cold storage in several major cities. As long as we have large cold storage in various places, the fish caught at sea can be transported to various cities through our cold chain, so that people can eat fresh frozen fish. Let me tell you that fish is the best for the human body in our food. In order, it is good to be a fish, a sea fish is better, a fish with scales is better, and a fish with scales in the deep sea is the best! We need to improve the living standards of the people and let everyone eat healthy. ”

Lu Chengxiang said: "I have arranged for someone to do the cold storage thing!" Now there are more opportunities for people to eat fish than before. But we eat more of the nearest river fish. There are still too few marine fish to eat! ”

"As you can see, the living standard of our kiln is much higher than that of other places, but we also have too many fat people, and there will be more cardiovascular and cerebrovascular diseases in the future. So, we should advise everyone to eat more fish. Zhang Zhimu said, "Mr. Lin, your marine fish processing ship will not only build one, but also build many ships. The canned fish you produce is not only to meet the needs of the market, but also to provide nutritious lunches for our students. In places where fresh meat is not available, we need to ensure the nutrition of elementary school students through canned food. ”

"Mr. Zhang, now we are shipbuilding, especially the hull of wooden ships, but our bottleneck is the power and internal equipment of the ship." Li Zongwei said, "You can also see that in our shipyard, there are cars, carriages, and ships transporting all kinds of materials to it day and night. But it still can't meet the need. ”

"I would like to tell you one thing today, we have made up our minds to build several boiler factories, steam turbine factories and other factories in Hankou that specialize in the production of marine equipment. This time I went to Hankou to study this matter with Li Mao. Also, if you want your shipbuilding base to continue to develop, you must build a special railway line. This is how you can ensure your transportation needs! ”

"Great!" Lin Zongwei said, "Especially the special railway line, which is also what I want to tell you!" With rail transport, we can reduce our shipbuilding costs a lot! ”

When the ship arrived in Hankou, Li Mao was at the wharf, Zhang Zhimu and Emperor Chongzhen were going to visit Hankou for two days, Ouyang He and Concubine Zhuang did not enter the city, and directly took the speedboat arranged by Li Mao to continue upstream, they were going to Yuezhou (Yueyang) to attend Fan Wencheng's funeral!

Zhang Zhimu and his party were arranged by Li Mao to live in the Hankou Hotel, which had not yet been completely completed. This hotel, almost built according to the Yaogang Hotel, is on a high slope not far from the river.

Although many of the hotel's ancillary facilities are not yet complete, the guest rooms and several main restaurants are already available. It is said that the environment here is much better than that of Yaogang Hotel. In particular, the waitress here is a locally selected beauty, which is completely different from the northern woman. The dishes are even more different.

Looking from the window of the hotel, the construction of Hankou has been very prosperous. Construction is taking place in many places. The population density is very high, and the streets are full of people.

Everyone took a break, and Li Mao made a report to everyone in the conference hall of the hotel. Of course, in addition to introducing some, the progress of several major engineering projects that Yaogang has been paying attention to also introduced the situation of this flood.

The scope of this flood is very large, and Zhang Zhimu and they came all the way along the river, and they can also see it.

Li Mao suggested that more silver should be used to strengthen the river embankment. Zhang Zhimu agreed to this matter on the spot, and instructed Lu Chengxiang to go back and implement this matter with Tang Jingyao as soon as possible.

However, Li Mao was particularly appreciative of the fact that the planes came to relieve the disaster this year, "Mr. Zhang, we have six planes this time, and after these pilots come, as long as the weather permits, they will take off again and again to airdrop dry food and other materials to the trapped people." Although they add up to a very limited amount of shorts, the impact is too great! Those desperate people, when they saw the plane flying by, knew that we had not forgotten them and were trying to save them. This confidence is very important at a critical time! I want to give credit to these pilots! If it weren't for the police on our runway, I don't know how many people with good food would go every day, and they would want to see the pilot! ”

"Hmmm! This time, the pilots have made a great achievement! But this time, I also saw the importance of airplanes! Zhang Zhimu said, "I met Li Yunhe before I came here, and they are working twin-engine planes, such twin-engine planes don't need to fly fast, how high they fly, and they need to be able to carry more cargo." In the future, if such a twin-engine aircraft can be put into use, it will play a greater role if it encounters such a thing again! ”

"Okay!"

"Great!"

Not only Li Mao said yes, but everyone in the conference room said yes.

Someone asked: "Mr. Zhang, when will the plane you are talking about be good?" ”

"Huh! I'm more anxious than you! Zhang Zhimu said, "However, let me tell you, Li Yunhe said that he will strive to rivet by the end of this year!" Well! You may not know what riveting is. Let me tell you, most of the parts on the plane are made of alloy aluminum, and they are riveted together. When the plane is riveted, it is time to start building the main body! ”

Li Mao then introduced: "Everyone wait! Such a twin-engine aircraft can also transport guests, and with such an aircraft, it is only a few hours from Hankou to Yaogang! That's when it's even easier to go back and forth! ”

"Ahh

"Really?"

“”

Many people are amazed when they hear about this for the first time!

During his few days in Hankou, Zhang Zhimu did not follow Emperor Chongzhen and them to visit various places, but followed Yang Chang and Li Di to debug computers in the newly built computing center in Hankou.

The actual use of building a computing center in Hankou is not very great, because there are still very few application software. However, Zhang Zhimu insisted on supporting the construction of a computing center in Hankou. After the construction of the computing center was completed, Yang Chang and the others came over to debug and communicate remotely with the Yaogang computing center. This matter is something that Zhang Zhimu is very concerned about, and it is also the reason why he stayed in the computing center without going out to visit.

After several call answers, the communication from the kiln to Hankou can transmit 1,200 baud data, and from Hankou to the kiln, the rate of 2,400 baud can be achieved from Hankou to the kiln. This is already a very good result, and it also means that in the future, the Yaogang side can easily exchange documents and data with the Hankou side.

After the wired communication was completed, the communication was carried out through short wave, and the effect was also very good.

Seeing this result, Li Di said to Yang Chang: "I don't understand these things you guys are doing, but this is completely different from the previous kind of communication with telegraph 'tick tock'!" Interactive communication is also available! ”

Zhang Zhimu said to Yang Chang: "I arranged an inventory management application for you, how are you doing?" ”

"Debugging is still underway, and the main functions have been completed, but there are some extreme cases that need to be carefully considered. They reported that the amount of work to deal with those extreme special situations was even more labor-intensive than the main functions, as if it would never be enough. Yang Chang said.

"I'll assign you another task, and you will build a grain depot purchase, sale and inventory management system on the basis of that software. It is then distributed to various grain reserves throughout the country. They are required to report data to the kiln gang every day. In this way, we can understand the situation of each grain depot in almost real time in Yaogang! Zhang Zhimu said.

"Good!" Yang Chang said, "Mr. Zhang, I think we should make more such software, so that everyone can use it and see the benefits, so that everyone can have a deeper understanding of computers." I also think that the food supply of our army should also be managed by computers! ”

Li Di interjected: "Our Yaogang subway is very well managed by computers, and their team is transplanting that system to our railway." I think that we transfer water from the Jialing River to the Wei River, and there are several reservoirs in the north and south of the Qinling Mountains, and their water level management and the management of ships passing through the locks need computers to manage them. Otherwise, it's easy to make mistakes! Also, I think our power plants need to be optimally managed by computers. ”

After listening to Li Di's words, Zhang Zhimu said to Yang Chang: "What's the matter, how many of you are not enough, right?" ”

Yang Chang sighed and said, "It is said that standing and talking does not hurt your back, I think that's it!" He didn't know how many people and how many days and nights it would take to solve an application problem! ”

"Huh! I've told you a long time ago that the demand for people in computers will usher in an explosive demand. How many people will also feel that it is not enough. However, the good thing about you now is that you have cultivated a backbone group! Zhang Zhimu said.

Zhang Zhimu suddenly thought of the database in his previous life, "A dog can do it with a handle", "Yang Chang, you need to develop a software that ordinary people can use when they learn it." It's even simpler than the basic language we use today. It is to make people forget what files are opened, read, written, closed, etc., and all data is stored in the database. The person who applies the application only needs to be confronted with the data. Such a tool, after we return to the kiln, we will study it together. With such database management software, we ordinary people can program applications on our own after training. This is also a good way to solve the shortage of computer application personnel in our country! ”

"Good!" Yang Chang said, "Mr. Zhang, in fact, we also have such an idea as yours, and we have discussed it together, as soon as you say this, we should engage in such an application tool when we go back!" ”

"There's another thing that you need to go back and study," Mr. Zhang said, "and we can do computer communication, and we need to study a device that can transmit images to the past." ”

"Like TV?" Yang Chang asked.

"TV is a moving image, and we can solve static images now." Zhang Zhimu said, "We first have to work on something that turns a certain point on the image into data. ”

Yang Chang said: "It's easy, just convert a little brightness signal through photoelectric conversion, and then digitize it." ”

"So, we can digitize one line of images, and then digitize many rows of images, can we digitize the entire image?" Zhang Zhimu reminded Yang Chang.

"That's right!" Yang Chang patted his head and said: "In this way, the images we digitize in Hankou can be sent to the kiln through the computer, and the data image can be displayed on the screen in the kiln!" If you want, you can also print it on paper! ”

"This combination of digital images and printers is a fax machine. But if it is to be accessible to everyone, it is necessary to build a compact computer to handle this fax machine. But I'd suggest you do this thing first by relying on the computers we have now! Zhang Zhimu said.

Li Di said: "This thing must be of great use. In the future, the contract with the fingerprint can also be passed on, so it will be much easier to do business! ”