"I'm here to debrief." Mr. Gu said, "Qin Feng, do you want to go in and listen to it together?" ”

In response to Mr. Gu's suggestion, Qin Feng shook his head again and again: "I know this confidentiality code, grandpa, I still won't go." ”

What Mr. Gu wants to report must be a confidential project, and Qin Feng has not participated in these projects, of course it is inconvenient to listen.

Moreover, if he heard it, and Mr. Gu asked Qin Feng to join in, would Qin Feng refuse or accept?

Of course, Qin Feng wanted to avoid these problems.

"You kid, I know that there is still an estrangement with me, old Song and Lao Tu them, what kind of ecstasy did you take?" Mr. Gu said while shaking his head, but he still had a smile on his face.

Of course, Qin Feng knew that the relationship between them, the older generation of aircraft designers, was good in private, after all, they all came out of the 112 factory, and the origin of the aviation industry of the republic was the 112 factory.

"No, I'm just doing what I can." Qin Feng said.

"Forget it, it seems that you kid is not interested, this improvement of our J-8 is definitely an eye-opener, what 1553B data bus, integrated fire control, advanced flat plate slot radar and the like, you kid is definitely not interested." Mr. Gu said.

When Qin Feng heard this, he couldn't hold back anymore, yes, he was tempted. What Mr. Gu said was what he was looking forward to the most.

When it comes to the avionics system of a fighter, ordinary people will think that it is enough to carry such an advanced flat panel radar, but in fact, this is not the case at all.

The fighter's avionics system, the most advanced, is instead that 1553B data bus.

This is a specialized data transfer standard.

In the past, the electronic equipment of the aircraft was done in its own way, for example, the atmospheric data, which was inducted through special sensors, and special cables were needed to connect, altimeter, airspeed gauge, etc., any instrument, it was necessary to have a set of special cables, not to mention, just disassemble the dashboard, you can see the thick instrument behind.

On airplanes, cables are also quite heavy, taking up the dead weight of the aircraft, and at the same time, adding complexity.

So, is there an easier way? For example, use two data cables to pass the signal over? All kinds of signals, all transmitted inside?

Americans have noticed this problem for a long time, and being able to transmit all the data into it with a signal line is a huge improvement, but different meters need different data, which requires a standardization.

The Americans did it first, and their SAE A2K committee, with the support of the military and industry, decided in 1968 to develop a standard signal multiplexing system, and in 1973 the MIL-STD-1553 standard was published.

This standard standardizes all kinds of sensors, computers, indicators, and other equipment, so that as long as this data bus can replace all the huge cables before, greatly reducing the weight of the aircraft, and using it is simple and flexible.

It was originally applied to aircraft, but later, other fields such as ships, tanks, aerospace, etc., began to apply this standard, and finally formed a complete set of international standards, all following the same standard, plugged in and used, which is quite convenient.

In addition to saving cables, there are many other benefits, for example, the on-board computer, in the past, a piece of equipment, there needs to be a computing chip in it, but after the application of this bus technology, the data is transmitted together, and even only one on-board computer is needed to carry out all the calculations, which also facilitates the interaction between various devices, and so on.

In short, the benefits are great.

To give a few examples, such as the monitoring system, the monitoring of a community, there are hundreds of them at every turn, each camera, you need a cable, these cables, if all of them are connected to the monitoring room, the cable of the monitoring room, I am afraid that a few people can not hold it.

Therefore, the camera has changed, it has become a network camera, a network cable is fine, several network cables are plugged into a switch, and the switch uses an optical fiber to access the monitoring room, so that the cable entering the monitoring room is much less, which is also similar to the meaning of the bus.

Even in the new century, many cars have begun to use bus technology, simply said tail lights, brake lights, night running lights, reversing lights, turn signals, double flashing lights, these lights, each light, need a wire, in this way, the wiring harness is very thick, if you use bus technology, as long as two signal lines and a power cord can be, who needs to be on, then to whom to send a signal.

In short, the bus technology is very powerful, now there is no 1553B data bus technology in China, only the latest development of the Flying Leopard fighter-bomber, the bus technology is used, but it is not a high-speed two-way 1553B data bus, just a low-speed, one-way ARINC-429 bus, this system is a fire control computing center, responsible for the cockpit display, the collection of the overall flight state, information processing and the output control of each subsystem, even if this system is very low-level, but it still realizes the attack/ The integration of navigation has effectively improved the combat capability of the system.

Now, what Mr. Gu is talking about is the 1553B data bus, and the introduction of this technology will be of great benefit to the development of all domestic fighters.

Therefore, Qin Feng could not resist this temptation.

"Am I eligible?" Qin Feng asked.

"I'll apply for this." Mr. Gu said: "Anyway, this meeting only started in the afternoon, now, let's go eat first." ”

Although Qin Feng was impatient, Mr. Gu didn't confide in this matter anymore, so Qin Feng knew that Mr. Gu was deliberately hanging his appetite and letting him wait until the meeting to listen, this was definitely a test of endurance for Qin Feng, Qin Feng didn't eat this meal well, and he had been thinking about it, what was going on, what happened?

I am afraid that these technologies cannot be done in China, even if it is an advanced radar system, it is only the stage of drawing a scoop according to the gourd, and it is still early to finalize the equipment, and Mr. Gu said very clearly, it is necessary to redress the Jianba.

Is it cooperation with foreign countries?

Qin Feng suddenly thought of this, and immediately reacted, that's right, it can only be like this, it must be cooperation with foreign countries, in fact, he has put forward this suggestion before, the foundation of the domestic industry is here, and now relying on self-research, there is no future, the project of Jian-8 has been in the stage of having guns and no bullets, and even some people are laughing at Jian-8 is a dove of peace.