Chapter 423

At the moment when the helicopter started to take off, a group of people found out how powerful the hand-held Dongchen positioning terminal was. The helicopter's own altimeter increased in feet, while Dongchen's positioning terminal's sensitivity to altitude increased in centimeters. In addition to displaying the current altitude, the terminal can also pass through Calculate the rotation of coordinate points in a certain time to calculate the helicopter's rising speed at this moment.

A group of Beidou system experts were stunned, but the military people were excited. Good guy, if you install this set of things on the aircraft and use the data of this system to command the aircraft to autopilot, the accuracy of this autopilot will be far higher than that of the pilot!

When the helicopter climbs to an altitude of about one kilometer, Zhang Yunfeng says, "the handheld terminal has another function, which is route recording. Whenever you turn on the recording function, the terminal will record your most accurate three-dimensional mobile route, including the change of plane position and altitude. Because we have added the unique processing chip of Dongchen In the hand-held terminal, so the terminal can calculate such intensive coordinate points very quickly and accurately. If you apply this set of terminal to the army, land and air forces in the future, then I can make sure that you know the position and movement of all the combat vehicles, ships and aircraft installed with this set of terminal. "

An air force engineer asked, "how can we count such a huge terminal? Will Dongchen open the function of real-time coordinate sharing? "

Zhang Yunfeng said quietly: "we will give the military a special permission. Then, we will provide a" management background "for the military. The Dongchen positioning module installed on all military weapons and equipment will be included in the controlled objects in the management background, so that when you enter the background, you can see the real-time dynamics of individual, part or even all controlled objects."

"If the military wants to upgrade its UAV, Dongchen can provide a set of automatic control system based on Dongchen positioning system. At that time, you only need to specify any target, and then set tasks. The automatic control system can command the UAV to execute accurately and correctly," Zhang added

The military representative was so excited that the whole person was a little crazy. He asked, "when can such a system and enough terminals be put into practical application?"

Zhang Yunfeng said: "one month? Now we have begun to produce terminal modules. We just need to wait for all our satellites to be launched into orbit, and for us to achieve global coverage. The entire Dongchen positioning system, whether civilian or military, can be started immediately. "

The military representative held his finger to calculate, exclaimed, "from launching the first satellite to fully entering into practical application, the whole process only takes less than two months? Is that too fast? "

Zhang Yunfeng smiled and said: "this is the speed of Dongchen. If a new technology is born, it must be promoted to the practical application stage as soon as possible. Otherwise, a system has been built 20 years ago with the technology of 20 years ago. After 20 years, it has finally been completed, and it has just fallen behind."

This is obviously for Beidou's experts, which makes the experts who have some doubts about Dongchen positioning system blush at the beginning.

in two months, it's amazing to build a global positioning system. What's more, the technology used by the system itself is at least decades ahead of Beidou. Once Dongchen's system completes the global coverage, Beidou can be officially laid off. What's more, Beidou has not finished yet Global coverage!

Then Zhang Yunfeng said: "the positioning system of Dongchen is not only to meet the simple service of positioning, because the positioning accuracy is very high and very stable, so I think this system can be extended to many aspects in the future. For example, if each high-speed train on the high-speed railway is equipped with the positioning system of Dongchen, then we can The railway department develops a dispatching system based on the Dongchen positioning system. The position, speed and distance between the front and rear trains will be displayed in the dispatching system with great accuracy. "

"If the military needs more precise satellite guidance, then we can also open guidance services to the military. All your requirements for precise location can be met from Dongchen."

For these so-called experts and military engineers, Zhang Yunfeng was not prepared to let them participate in the test of the system from the beginning. All Zhang Yunfeng's purpose was to demonstrate the excellence and incomparable of the Dongchen positioning system with his own method.

The helicopter constantly flies around the airport, and these experts also see from their own terminals that the terminals constantly record the longer and longer flight path of the aircraft, and really as Zhang Yunfeng said, it is a three-dimensional trajectory, and almost exactly the same.

However, this is only a demonstration of the accuracy and extension function of the Dongchen positioning system. For how to reflect the application of the Dongchen positioning system at a higher level, Zhang Yunfeng can put the second test at 9:00 p.m.

In this test, a modified Boeing 737 is used. The location system, altitude, ground speed, airspeed and other data sources of the Boeing 737 are all modified. All data are provided by the Dongchen location system, and the autopilot function of the aircraft is also upgraded and matched with the Dongchen location system. It can be said that the aircraft At present, the positioning and automatic driving system is the complete set of technology that Zhang Yunfeng will apply to Dongchen's own aircraft in the future.

Now the so-called autopilot of the civil aviation airliner is nothing more than to lock the coordinates after taking off and entering the cruising altitude, and realize self flight by the aircraft in the air. However, when it comes to the real automatic take-off and landing, it is basically equivalent to a dream.

However, Zhang Yunfeng not only wants the 737 to take off and land automatically and fly automatically, but also to simulate the worst situation, that is, there is no visible state at all.

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Zhang Yunfeng invited Liu Gang, a dozen people in a line, who said, "this plane will not be equipped with a pilot. From launching the hangar to the runway, taking off, flying and landing at the end, all of them will be completed by the autopilot system with the Dongchen positioning system. I wonder if any of you dare join me in the plane."

As soon as I heard that there was no pilot, these experts showed their fear one by one. One expert said: "pure automatic driving is impossible, even the UAV can't do it. Although the UAV is driverless, it also needs people to control it. Flying is a very rigorous thing. Without the participation of people, no matter how precise the machine and computer are, it's not reliable after all. ”"I tell you, as long as machines and computers are high-end enough, they will always be more reliable than people," said Zhang with a sneer

As he said, Zhang Yunfeng made a very simple analogy and said: "most of the traffic accidents are caused by people's problems, not by machines. In the work, the number of times your computer crashes is never more than the number of times you crash. You will ask for leave and strike because of various minor illnesses, but as long as your computer has no inherent defects in software and hardware, there is no The author thinks that if the operation is wrong, it may not crash in a few years, but we will not rely on computers and machines completely. Sometimes, human participation is necessary, but this time, we do not need anyone to participate directly. "

Seeing that none of these experts had the courage to board the plane, director Liu opened his mouth and said, "I don't dare to accept new things. In the end, I always have to stay where I am. I believe that Dongchen's hardware and software must be more reliable than the pilot's, so you are willing to board the plane at will, but I am the first to follow."

Several representatives of the military also expressed their willingness to board. The remaining Beidou engineers struggled for a long time, and only 50% of them were willing to board.

Zhang Yunfeng didn't have too much time delay. He immediately took these people to board the modified 737. In the cockpit, the position of the captain and the Deputy captain was empty, and several people crowded into the cockpit to see how the aircraft without pilot could finish taxiing automatically, enter the runway and take off and land.

Zhang Yunfeng sat on the captain ' Starting point waiting for takeoff. "

Then Zhang Yunfeng called up another set of data, saying: "this set of data is the route data of the five side approach of the test airport. If I also transfer this set of data, the aircraft will fly according to the route marked on this set of data after takeoff until landing. Then, I can choose any hangar or parking lot as the taxi destination after landing Will drive to the designated position. "

A dry person and so on all think this matter is very inconceivable, but Zhang Yunfeng at this time, set the last data, that is, where should the plane taxi after landing.

"The end of our flight is our starting point." Said Zhang Yunfeng, explaining: "I input our current coordinate position and aircraft direction information into the computer. After the aircraft completes the flight, it will automatically taxi to our current position, and even the nose direction will not have any deviation."