What is GPS? GPS system is a research project in the United States since 1970s. After more than 20 years of development, it has consumed a lot of resources and funds. It is understood that tens of billions of dollars have been invested. Originally an important military facility developed by the United States, 1994 was completed and put into use. The GPS system is based on 2/kloc-0 working satellites and 3 backup satellites, distributed in 6 orbits. The GPS system can locate and navigate the land, sea and air in real time. Later, for various reasons, civil use began to open.
In fact, there is no way for the United States to charge directly. GPS system can only communicate in one direction. So, who is using American style? Although GPS is open to civilian use in the United States, it is also used all over the world, so there is no choice but to be free. Direct costs are not charged to users, but indirect costs are used for other purposes. If you want to use GPS on mobile phones, cars and other devices, you must install GPS chips. In order to obtain the qualification of legally producing GPS chips, GPS chip manufacturers must pay the license fee and patent fee of GPS navigation software to GPS operators. After paying for these software and equipment, we actually charged the United States for timely purchase. These expenses will be enough to bring huge profits to the United States.
This also shows the strong soft power of the United States, making the United States more and more influential in the world. The United States has accumulated a large number of users through GPS, which makes the United States occupy most of the global navigation system, and the scale is very large. At the same time, a large number of users around the world use GPS, and the United States also has data from many countries.
When we use this function, will we be charged, so many people have a question: if the United States charges for such a simple and essential thing, it will not be profitable. So, why does the United States provide GPS for free? The truth is, you may not believe it, but you don't need to charge as you think. There are many of them.
Finally, monopoly and control technology. Positioning navigation is an indispensable part of modern people's life in many ways. The United States has mastered GPS technology, and many countries in the world are using GPS systems and opening GPS to other countries, which will make other countries rely on it and inhibit the development of positioning and navigation technology in other countries.
In order to get rid of this control, China developed the Beidou navigation system. At present, the development trend of Beidou in China is very good, and it is gradually applied to the civil field.