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Text Chapter 432 Dongchen Positioning System (Part 1)

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    The shocking news that Dongchen and Airbus have reached an acquisition intention is being reported in the news. At this time, Zhang Wenhao has already let go of his heart. Although the people he sent have not yet evaluated all the assets of Airbus,  It is impossible for anyone in the world to spend more money than himself to acquire Airbus. Even Raymond does not dare to compete with him. Everyone who is involved in aircraft manufacturing or is interested in aircraft manufacturing is afraid of one problem.  That is Dongchen Aviation in the hands of Zhang Wenhao.

    The acquisition of Airbus is a relatively long process. After completing various evaluations and reaching an agreement with Airbus people, this process will take at least a month. For such a large acquisition, for a normal enterprise, it would be  The tug-of-war between the two sides would last for more than half a year, but in Zhang Wenhao's case, the tug-of-war process was completely omitted, because he didn't care about the money, so what if Airbus took advantage of it when selling itself?  It has no effect on myself.

    When Zhang Wenhao gave up on Airbus' big idea, the seven domestic positioning satellites launched for Dongchen had already launched into the sky, and the launches responsible for the United States and Australia had also begun a countdown. In at most twenty days, all satellites would be ready  Launched in place in one go.

    However, the test of Dongchen's three-dimensional satellite positioning system no longer needs to wait for all satellites to be launched into the sky, because seven satellites have already been put into orbit. These seven satellites cover most of the Asia-Pacific region. Like now  Like the Beidou system, Dongchen's three-dimensional satellite navigation system has the ability to be used normally in the Asia-Pacific region.

    The country and the military attach great importance to this positioning system. After the seven satellites were put into orbit, Director Liu went to China Shipping in person and met with Zhang Wenhao at Dongchen Aviation.

    This time, Director Liu led an expert team of more than ten people. Six of these dozen people are information technology engineers from the navy, army and air force, and the rest are all core engineers of the Beidou satellite positioning system. This  This time, the military came to evaluate the various performance indicators of the Dongchen positioning system, while Beidou engineers came to learn from advanced experience and then decide whether to abandon the soon-to-be-built Beidou system.

    Zhang Wenhao has already prepared multiple test terminals, including handheld terminals, terminal modules embedded in mobile phones, vehicle-mounted, airborne and ship-mounted terminals.

    ??Among them, airborne terminals have the most powerful functions, followed by shipborne terminals, vehicle-mounted terminals, handheld terminals are relatively weaker, and the functional weakening of mobile phone terminals is even more serious.

    However, all terminals have several basic functions, namely: three core functions: plane satellite positioning, three-dimensional satellite positioning, and satellite speed measurement.

    When Zhang Wenhao met with Director Liu and his group of more than a dozen people, Director Liu asked enthusiastically: "Wenhao, are all the relevant work for the test ready?"

    Zhang Wenhao said calmly: "The main content of this test is very simple. In fact, it is nothing more than the test of a few functions and various indicators. Moreover, our test is different from your ordinary test, so all of you must obey  Under our arrangement, you are visitors to the test, not direct participants, and you have no right to make any changes to the content of the test.¡±

    Director Liu hurriedly said: "That's natural. We mainly come here with the attitude of visiting and learning."

    Zhang Wenhao nodded and said: "For the first test, let's go to the test airfield and start from there."

    A group of people took the bus directly to the airport, and the airport was already prepared at this time. Zhang Wenhao rented a helicopter that could carry 22 people. At this moment, the plane was parked on the tarmac of the airport, waiting.  With the arrival of Zhang Wenhao.

    Zhang Wenhao got out of the car with more than ten people and said: "Dongchen's positioning system, in general, we have completed the detection of the current covered area. At present, our seven satellites cover most of the Asia-Pacific region.  There are no dead spots in the coverage area, and there are no blind spots in the area, so you can rest assured about the coverage and stability, and I won¡¯t demonstrate this to you anymore.¡±

    An engineer from the Beidou system frowned and asked: "How long has your satellite been up there? Have you already completed the coverage of half of the Asia-Pacific region? Do you know how many positioning blind spots there are in the Asia-Pacific region caused by the geographical environment? Those blind spots,  Have you all monitored it?"

    Zhang Wenhao frowned and thought to himself: Why the hell did you come to study with so much nonsense?

    He said angrily: "The Dongchen positioning system is completely different from your positioning system in that our satellite can accurately project all coordinate points to the place where every positioning signal can be transmitted and the projection  The situation is given real-time feedback, so we don¡¯t have to go out to look for blind spots, but can directly see where the blind spots are, understand?¡±

    As he said that, Zhang Wenhao was afraid that he would not understand, so he continued to talk.?: ¡°We have densely packed countless coordinate points less than one centimeter apart in the plane and three-dimensional space within the coverage area. If any place is not covered by coordinate points, our satellite can identify it by itself, so we can immediately obtain  Do you know how many irreversible blind spots there are in the coverage area? How many blind spots do you know now? Do you want me to go back and give you the most complete blind spot information?"

    The man immediately became speechless, his face turned red after being squeezed by Zhang Wenhao, but he couldn't say a word.

    Zhang Wenhao said angrily at this time: "Every coordinate point of the Dongchen positioning system is very clear. When you get on the plane later, you will be able to see what an ultra-high-precision positioning system is, even the instruments you have always trusted.  It¡¯s far incomparable!¡±

    The group of people got on the helicopter. Everyone who boarded the helicopter received a small box given by the staff. Inside the box was a set of Dongchen's handheld positioning terminal. After getting on the plane, Xiao Zheng said: "You guys are now.  Turn on the handheld terminal and take a look at the current location data first."

    The group of people hurriedly opened the positioning terminal issued by Dongchen. After opening it, the real-time coordinates and altitude of the place appeared on the LCD screen.

    Xiao Zheng said: "Before the plane takes off, you should try the positioning accuracy of the positioning system on a flat surface."

    When these people looked at the positioning system, they found that the positioning coordinates were much longer than the general longitude and latitude. It can be seen that Dongchen's positioning system is more accurate than the traditional longitude and latitude coordinates. When someone accidentally moves the  When positioning the system, I discovered that even a slight movement would cause the coordinate information on it to change.

    "This positioning accuracy and coordinate update speed are too fast!" A Beidou engineer exclaimed, "Almost every time it moves, the coordinates will change."

    Zhang Wenhao said calmly: "If such a high precision is not needed in actual use, you can enlarge the precision setting. In addition, you can turn on the real-time speed measurement function in the terminal. The terminal will adjust the time according to the change of coordinate points.  , calculate the most accurate real-time movement speed."

    Everyone was greatly surprised and started to try it one after another. Sure enough, one person couldn't help but said: "The speed of my arm just now was 2.341 kilometers per hour."

    Zhang Wenhao said: "If you throw it out, the positioning system can record the most accurate parabola and descent process. If used on an airplane, you will be able to see the most accurate flight trajectory of the airplane in flight. This information will also  The facts are transferred to the black box, so that once the plane crashes, the entire crash process of the plane can be restored based on the flight trajectory data in the black box."

    As he spoke, Zhang Wenhao pointed to an altimeter added in the cabin and said: "This altimeter was added by me. It is the same as the altimeter used by the helicopter itself, and the same as the altimeter used by most aircraft, but it  The smallest unit is one foot. After the plane takes off, you can compare the altitude data that appears on the terminal with the data on the altimeter to see whether the instrument or the positioning system is more accurate."

    "The positioning system must be the most accurate." An engineer said: "I put the positioning terminal on my leg, and it showed that my current altitude was 45.54 meters. When I held it in my hand, the altitude was 45.82 meters. For the altitude  The positioning accuracy has also reached the standard of one centimeter. This positioning system is so powerful! I have never heard that the positioning system can also be 4D."

    Zhang Wenhao said calmly: "It also has many other auxiliary functions. For example, it can not only give you your plane moving speed, but also your altitude moving speed. In this way, it can more accurately record the aircraft's climbing speed.  , the climbing trajectory of the aircraft, and can even be used as a barrier for the aircraft to take off and land without visibility."

    Everyone around looked surprised. They didn¡¯t understand Dongchen¡¯s positioning system, and they didn¡¯t know how powerful this positioning system was. At this time, Zhang Wenhao said: ¡°Our coordinates are all three-dimensional.  , that is to say, when we mark a point, we will also mark the height of the point. For example, on a runway not far away, we take an intermediate point at both ends of the runway, and then input these two coordinates into the terminal.  , the terminal will automatically connect these two points into a line. This line is the absolute center line of the runway. Because our positioning accuracy is less than one centimeter, even if there is no actual view of the airport and the runway, through  The accuracy of the simulated vision restored by the airborne positioning system on the display screen is much higher than that of the naked eye and other existing equipment. Pilots can even use this system to make the aircraft take off and land on the absolute center line, which is not only accurate for  The location of the entire runway is clearly known, and the height of the landing gear from the runway ground can be clearly displayed, even if the aircraft??The landing gear is still one centimeter away from the runway ground, and it can accurately identify and prompt.  "(To be continued. Please search Piaotian Literature, the novel will be better and updated faster!)
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