China's Beidou Navigation competes to challenge the US GPS, and 122 countries around the world pay for the use.
As we all know, there are currently only four major satellite navigation systems in the world. They are the Global Positioning System of the United States, the Galileo system of Europe, the GLONASS system of Russia, and the Beidou system of China.
The GPS system in the United States was introduced earlier than any other system, with the highest market share, the widest coverage, and the most advanced technology. Before China introduced its own navigation system, it used a domestic GPS system.
Therefore, the early domestic satellite navigation was directly called GPS, at this time the GPS of the United States has been deeply rooted in the hearts of the people, and even now many domestic navigation systems do not use GPS, many people still think that it is GPS.
But later, with the development of science and technology, military, etc., everyone understood that the satellite navigation system is a high-tech eye, without it, you have to use someone else's, if someone else's is disrupted, it is equivalent to a blind eye, so China decided to establish its own Chinese civil navigation system, that is, the Beidou system to the following.
China's Beidou, from the 90s to the last Beidou-3, all completed, it took more than 20 years, overcoming many difficulties, when the United States and Europe knew that China was going to build its own satellite navigation system, on the one hand, it was ridiculed, on the other hand, it was a technical blockade, all the core technologies, equipment, all need to be independently studied.
Beidou-1 was completed in 2003 and Beidou-2 in 2012, and the Beidou-3 global satellite navigation system, which covers the whole world, will be fully operational in 2020, and China will officially end its dependence on the US GPS system.
At present, all smartphones sold in China support 100% Beidou navigation, and many navigation maps, as well as the use of Beidou priority and GPS sorting, have been carried out in accordance with Beidou.
From a technical point of view, the average accuracy of global positioning is 234 meters with an average speed accuracy of more than 02 meters, synchronization accuracy of more than 20 nanoseconds, service availability of more than 99%, far more than Galileo and Gnosis, and even more than GPS.
Since then, based on the huge Chinese market, Beidou navigation has developed rapidly, and the daily call volume of Beidou satellites has exceeded GPS and other satellite navigation systems, ranking first in the world.
Beidou covers more than 3 billion users around the world, and the number of users is not inferior to the GPS of the United States, ** It is reported that 122 countries around the world pay for the Beidou system, and the use of the Beidou navigation system is no longer regarded as GPS, which is also regarded as China's Beidou is not used, depriving GPS of a bowl of water.
Lin Baojun, the chief designer of Beidou, once said that Chinese scientists should have self-confidence and not think that it is impossible to surpass others. Now, Beidou has proven this: because from scratch and 100% independent research, China's Beidou has never conceded defeat to any satellite navigation system in the world.