Four cold facts about the Beidou satellite navigation system
There are currently four major satellite navigation systems in the world. In addition to China's Beidou satellite navigation system, there are also the Global Positioning System (GPS) of the United States, the Galileo satellite system (GALLLEO) of the European Union, and the GLONASS satellite system (GLONASS) of Russia. ). These four major satellite navigation systems are suppliers recognized by the United Nations Satellite Navigation Commission.
The Beidou Navigation Satellite System (English name: BeiDou Navigation Satellite System, referred to as BDS) is a global satellite navigation system developed by China itself, and it is also the third mature satellite navigation system after GPS and GLONASS. Beidou Satellite Navigation System (BDS), GPS of the United States, GLONASS of Russia, and GALILEO of the European Union are certified suppliers by the United Nations Satellite Navigation Commission. GPS jammer
1. Why is it named "Beidou"
In fact, the reason is very simple. Since ancient times, our country has used the Big Dipper to find the Big Dipper, so as to determine where the north is, and then judge other directions. Therefore, our satellite navigation system is named "Big Dipper". There is a strong Chinese style, which shows the long history and culture of China.
2. Beidou has completed the networking, why is the GPS navigation still displayed on the mobile phone?
This question is probably asked by many friends. First of all, we need to explain a cognitive misunderstanding.
GPS navigation itself refers to the satellite navigation system, and does not refer to a specific American satellite navigation system, but because the United States established a navigation system very early, it took up this general name, which has led to many When a friend mentions the GPS system, he thinks it is the American navigation system.
In fact, the four major navigation systems can all be called GPS navigation systems, but the habit has been formed, and now the default GPS navigation system, everyone thinks it refers to the US satellite navigation system.
So when your mobile phone displays a GPS navigation system, it may not necessarily be the American satellite navigation system, it may be the Russian GLONASS, or the European Galileo, and now it is naturally likely to be the Beidou navigation system.
3. How to use Beidou navigation on mobile phones
In fact, whether a mobile phone supports Beidou navigation depends on whether the hardware of the mobile phone supports it, that is, the CPU chip of the mobile phone. There is a cognitive misunderstanding involved here.
Many friends are surprised that whether the mobile phone can use Beidou navigation, you need to download a special APP. In fact, this is not the case. If your mobile phone hardware supports Beidou, then you may already be using Beidou navigation, but you don’t know it.
On the contrary, if your mobile phone hardware does not support Beidou, then no matter what software you download, you will not be able to use Beidou.
The question is, what kind of mobile phone supports Beidou?
Generally speaking, the chips of most mobile phones support Beidou, such as Huawei's Kirin chips, Qualcomm chips, and MediaTek chips. But the Apple chip currently does not support Beidou navigation, why? Because the Beidou signal processor is not embedded in Apple's A-series chips, Apple's chips themselves do not support Beidou.
4. Is Beidou paid or free?
In recent days, the market has seen some friends download the software and pay 20 yuan to use it. This is a wrong way of operating. Beidou is free for civilian use.
Charging refers to a special industry. We ordinary people do not use the charging function. As long as your mobile phone chip supports Beidou, you will automatically use the Beidou navigation system when you use Baidu Maps and AutoNavi Maps.
