In this era of rapid development of technology, mobile phones have become an indispensable equipment in our lives, and the navigation system in it provides us with a lot of convenience. Today I will introduce to you the Beidou satellite positioning system.
Beidou satellite navigation system is an satellite navigation system that is independently built and independently operated in order to ensure the safety of the country and the people, and to promote the development of our country's economy. It can provide all-weather, all-day, and high-precision positioning and navigation services, and is an important space infrastructure in my country. In recent years, Beidou satellite positioning has been widely used in forest fire prevention, earthquake relief, hydrological monitoring, meteorological forecasting and transportation. It has penetrated into all aspects of people's production and life and plays an important role in promoting social and economic development.
Beidou satellite navigation system consists of three parts: space segment, ground segment and user segment. It can provide high-precision, high-reliability positioning, navigation and timing services to all types of users around the world, and has short message communication capabilities. It has initially equipped with regional navigation, positioning and timing capabilities. The positioning accuracy is decimeters and centimeters, the speed measurement accuracy is 0.2 meters/second, and the timing accuracy is 10 nanoseconds.
Then, is the Beidou satellite navigation system commonly used in our daily lives? This is not the case. The GPS we often call is also an satellite positioning system , but it was developed by the United States. The original intention of the United States to develop GPS is mainly to provide navigation services for its three major fields of sea, land and air, and to use it for military purposes such as intelligence collection, communication emergency response and detection. It is now used worldwide. Imagine such a huge system. Once it is shut down or there are other "unknown dangers", is it safe?
, why is such a comprehensive and secure Beidou satellite positioning system not common in our mobile phone life? The reason is that it is related to its research and development time.
First of all, Global Positioning System 's leading advantage is obvious. GPS in the United States is twenty years ahead of us. Over the past 20 years, the GPS industry chain has spread all over the world. The design, production, debugging, user awareness, equipment price, etc. of GPS modules are all the biggest advantages in the world. It will take some time for Beidou to seize the initiative in the civil market.
Secondly, their location is different. Because the United States is the first country to develop the global positioning system, GPS is both commercial and civilian. The biggest function of the Chinese Beidou system is to prevent the United States from causing trouble for us. If Americans encounter conflicts, disasters, or confrontations, turn off our GPS system . This is no different from being a "blind man". So at the most critical moment, Beidou's main function is to replace GPS and protect the "property" of the people.
3. GPS is the abbreviation of all satellite navigation, including GPS, Beidou, Galileo, etc. It does not specifically refer to the global positioning system in the United States, . Mobile phone manufacturers often use "GPS" to summarize , so that everyone only knows GPS and thinks that there is only the global positioning system in the United States.
In fact, the Beidou, which we independently developed, has gradually begun to appear in the eyes of the public, and Beidou has also begun to appear in our navigation system. After the National Day holiday, Baidu Map announced the optimal order of adjusting the positioning system. gave priority to using the Beidou satellite navigation system independently developed by my country, and the relevant service name was also changed to the Baidu Map Beidou positioning open platform. The daily positioning volume of Beidou satellite exceeded 100 billion times. This has fully proved the accuracy and reliability of the domestic Beidou navigation system. This not only supports "domestic products", but also ensures safety. Why not do it? I firmly believe that with the continuous strengthening of my country's scientific power, China's "Beidou" will be known and used by more people!
