Since the completion of China's Beidou navigation construction, many countries in the world are gradually carrying out cooperation plans with China. Of course, this is also a "technical affirmation" of China's Beidou system.
The Chinese Beidou system is also a global satellite navigation system developed by China itself, and it is also the third mature satellite navigation system after GPS and GLONASS, which occupies a favorable advantage in the world. Because China's Beidou system is also the most advanced technology research and development and so on.
So, compared to other navigation systems, it's not bad at all. No, China's Beidou system has ushered in a new news, and Sino-Russian cooperation has ushered in new news. Of course, every time when it comes to Beidou, many people are saying that Beidou navigation downloads money, not free, it is better to use GPS, and GPS is still free, the accuracy is good, is this really the case? What's the situation? Didn't my country declare it free? It's a bit of a slap in the face, so let's take a step-by-step look.
China's Beidou is a "space system" that is China's main player, and it does have some special performance compared to other satellite navigation systems. The Beidou system is mainly composed of three parts, namely "space segment, ground segment and user segment", and for us, the main is the use of the user segment, the space station is equivalent to the main space activity segment of Beidou, and the ground segment is mainly "broadcast signal", "base station construction" and other issues.
Therefore, the user side is the most concerned point for everyone. After the construction of Beidou, it is the same as other systems, that is, it can provide high-precision and reliable positioning, navigation, timing services and so on for all kinds of users all day and all day around the world. And it can also provide positioning accuracy of decimeter, centimeter level, speed measurement accuracy of 0.2 m / s, timing accuracy of 10 nanoseconds capability.
After the completion of China's construction, 137 countries have signed cooperation agreements with the Beidou satellite navigation system, and this time "Russia and China have signed a satellite navigation cooperation roadmap", which is equivalent to a utilization upgrade of Beidou.
According to the information released by the Russian National Space Corporation, the roadmap plan includes the integration and innovative development of the Russian GLONASS and China's Beidou navigation systems, enhanced its compatibility and complementarity, and plans for Russia and China to set up ground survey stations.
In addition, the two countries will establish their own surveying stations. The Russian site is planned to be located in shanghai, Urumqi and Changchun, while the three Beidou survey stations will be located in Obninsk, Irkutsk and Petro Pavlovsk kamchatka.
Therefore, the Russian GLONASS and China's Beidou navigation system will be jointly used in two countries, and will be built in 3 cities in each city. This is also an important step in beidou's internationalization route. The cooperation between the two will also likely shake the status of GPS.
But then again, many people say that with Beidou, GLONASS, it is better to use GPS, GPS is more advanced, and it is also free, occupying a lot of markets, and most mobile phones are also supported. Some people even say that these two systems have more advantages than GPS, is this true? Let's take the Big Dipper to illustrate.
Indeed, from the perspective of the state of the market, the GPS market is really not low. But with the rise of Beidou, it is obviously shaking the status of GPS. And if Beidou is compared with GPS, it is not as advantageous as everyone says.
First of all, China's Beidou still has original things, the Beidou system has created three kinds of orbital hybrid constellations, adding the use of precision single-point positioning and star-based enhancement new functions, which is a unique function that does not exist in other navigation, and at the same time, under the comprehensive utilization, it can also broadcast a better navigation signal.
Secondly, China's Beidou global positioning accuracy is comparable to GPS, and the local area is better than GPS, for example, Beidou's accuracy in North America, Africa, Europe and other places is about 5 meters, and in the Asia-Pacific region, it can be accurate to 2.5 to 3 meters.
In the application of China, the accuracy of the ground time error is only within 0.3 seconds, the distance error is within plus or minus 10 cm, and the accuracy error within 10 cm can be said to be extremely small, and GPS may not be able to achieve this mode.
At the same time, Beidou also has a huge feature, is not the operation of the system need ground support? But Beidou is different, without ground support, the satellite can still achieve 60 days of autonomous operation, completely unaffected by the fluctuations of the ground, at the same time, not affected by the up and down links are not affected by the atmospheric ionosphere interference.
Therefore, the strength of Beidou is only what you can't imagine. You say that compared with GPS, who is better than Beidou? In fact, relatively speaking, Beidou has more advantages.
But still that sentence, everyone thinks of asking for money, then it will be a problem, GPS has been used for so many years, never heard of the charge, why to the Beidou here, it is going to charge, the so-called free, there are invisible charges, this is not to make the user sad? What the hell is going on here.
First of all, we still emphasize that Beidou does not want money, it is free, this is not a lie. Some people say that Beidou requires money, more than 100 yuan, 180 yuan to use Beidou, which has nothing to do with "Beidou".
Many people may also notice when downloading, what Beidou map, Beidou navigation, Beidou precision navigation, etc., all need to give money to use, and even screenshots tell me, "This is what you say no charge"?
Or that sentence, no money, is free, at the same time, what Beidou map, Beidou navigation, Beidou precision navigation, etc. are not Beidou official software, Beidou official did not develop these applications. And these money collection software that everyone says are all developed by third-party companies. It is a third-party company that collects everyone's "IQ fee". For whether you can use Beidou, in fact, the key is to look at your own mobile phone.
There is a relationship with the hardware facilities of the mobile phone itself, as long as your mobile phone hardware supports Beidou, it can be used, so don't be fooled by beidou map, Beidou navigation, Beidou precision navigation and other software, the United States GPS is free, Beidou is also free. At the same time, it is once again emphasized that Beidou is not equal to what everyone says about the Beidou map, Beidou navigation, Beidou accurate navigation, etc., which is a misunderstanding of everyone.