"Currently, this software has implemented some functions. There is no problem in text transmission, and it also supports batch text transmission." Duan Fang glanced at his brother, and then said: "It is still a bit difficult to realize picture transmission, but we have learned from some foreign methods.

The design idea of ​​similar software is that image files can be compressed to a certain proportion, and then decompressed and viewed by the user on the receiving end. This is roughly the principle."

"This direction is correct." Duan Yun nodded.

In this era, image transfer is not an easy task, especially large-volume image transfer, which often requires very bulky equipment.

For journalists before the 1990s, especially those stationed overseas, it was very common to send photos. Although there was no Internet, as long as the phone could be connected - the tool used was a computer called UPI16

-S device.

UPI16-S was a professional device produced by United Press International back then, and its function was to transmit photos over long distances.

The reporter rolled the printed picture into the roller on the equipment, and then started the machine to start the transmission. As the roller rotated at a constant speed, the laser beam slowly scanned the picture, and then transmitted the signal back to the headquarters. At that time, it was not so convenient to answer the phone line.

Therefore, the operation method seems a bit rough, and you need to move one part of the microphone

The head must be disassembled and connected to the connection line at the other end, and the call cannot be interrupted during the entire process, otherwise, the picture transmission will be abandoned halfway. Considering the international long-distance phone charges and the number of picture transmissions at that time, the cross-border picture transmission at that time was

It is very time-consuming, labor-intensive, and costly.

After all, it is a relatively primitive technology, and there is nothing we can do about the extremely slow transmission speed. Black-and-white photos are fine, but it takes 8 or 9 minutes to transfer one. If it is a color photo, it will take a long time. If it is a cross-border transfer

Figure, even if the phone line signal is perfect, it sometimes takes an hour.

In addition to UPI16-S, major news agencies have also developed their own photo transmission machines, which are similar in principle. Even if this equipment has made great progress in transmission speed in the later period, it is still bulky and difficult to maintain.

It drove many reporters crazy.

It was not until 1991 that new technology for picture transmission finally appeared.

United Press International's UPI Model 16-S tools continued to work until 1991, when they were replaced by newer technologies. For example, the Hasselblad Dixel digital photo transfer machine was used by reporters during the 1991 Gulf War.

News photos.

Only after the Internet era did image transmission technology see major breakthroughs.

On August 6, 1991, Berners-Lee posted an article introducing the World Wide Web project to the alt.hypertext news group. This day also marked the debut of the World Wide Web as a public service on the Internet.

Subsequently, the development and application of the Internet continued to take new leaps, and the number of Internet users increased exponentially. The transmission of pictures also entered the Internet era.

As you all know, at this time you can transfer pictures through email, MSN, QQ and other instant messaging tools.

With the emergence of smart phones and mobile networks, not only can pictures be transferred through computers, but also selfies, scenery, and food pictures can be sent anytime and anywhere through mobile phones.

Journalists stationed overseas certainly don’t need to carry cumbersome tools like image transfer machines.

However, if you are in an area with poor network conditions or no network at all, the usual Internet transmission methods cannot be used. At this time, reporters usually rent satellite phones to transmit manuscripts.

The era of professional software for image transfer

The wheel of history is rolling forward, and the history of picture transmission is no exception. Professional transmission software came into being.

In later generations, there were not many mature professional transmission software in China, and Ftrans was one of the good ones. Through the ultra-high-speed transmission protocol CUTP, Ftrans completely overcomes the inherent bottlenecks of traditional transmission methods such as FTP, HTTP, etc., bringing

It achieves high-performance digital transmission in the true sense. For Ftrans, picture size, network conditions, and distance are not problems.

Ftrans also has breakpoint resuming, multiple verification, automatic retransmission, digital encryption and other technologies to ensure that picture transmission is correct and safe. Translated into easy-to-understand language, you don’t have to worry about the wrong picture being transmitted, and you don’t have to keep looking at it during transmission.

, if it is interrupted, it will automatically connect, and there is no need to worry about the picture being stolen during the transmission process.

However, at present, considering that government departments and enterprises and institutions that use domestic systems often publish some files and pictures internally, and this kind of file transmission will be very frequent, if the smooth transmission within the LAN cannot be done well, then Duan Yun's

This set of domestic software will definitely be replaced by related foreign software in the future.

From the current point of view, Duan Yun's domestic system has no problem in transmitting text files, because the text file is very small, even if it is to transmit the entire book content, it will not take long, but the picture transmission is different.

Sometimes a picture with a higher definition is even larger than the text file of a book. Therefore, considering the urgent needs of users, Duan Yun must first solve the problem of image transmission speed within the local area network as soon as possible.

The World Wide Web has not yet been introduced in China, but Duan Yun must prepare corresponding technical responses in advance. In fact, the R&D center at Tianyin's headquarters has set up a dedicated software team to develop instant messaging software similar to QQ.

So now Tianyin headquarters is responsible for developing technical communication software, targeting the Internet, while BJ branch mainly considers the needs of domestic operating system users, and first makes a system software that can only be used on local area networks.

From this point of view, it can be regarded as a reasonable use of resources.

In fact, the earliest ICQ developed by the Israelis only had the function of text transmission. It was not until 1999 that it had the ability to transmit pictures. However, the speed of picture transmission was relatively slow, which tested the patience of users.

"I still lack some manpower here. Many of the new employees graduated from the computer major, but they have no R&D experience, and they need a certain amount of time to train and adapt to the working environment here. So brother, can you come from the head office?

Call in a few experts to solve the problems related to the domestic operating system first," Duan Fang said.

Faced with the problem of image transmission, Duan Fang still feels a little powerless. The most important thing is that there are still too few software experts on his side to solve this project.

"This matter is easy to handle. I will transfer a group of people from Spark Studio to come over and strive to produce the prototype of this software within three months. The success of the promotion of domestic operating systems is related to our group.

The company's computer and chip industry, so we must be careful about this project, and we must do our best to resolve any comments and requirements from customers. If you can't solve it here, you must call me as soon as possible. The current network
Chapter completed!