Launch! Whats the significance of Beidou systems star of ending officials?

category:Global
 Launch! Whats the significance of Beidou systems star of ending officials?


Select the opportunity to announce the completion of global navigation system

The newly launched closing star of Beidou system 3 is the 30th satellite of system 3 and the 55th satellite in orbit of Beidou family.

According to the data, this satellite is a geostationary satellite, about 36000 kilometers from the ground. This track is a unique design of Beidou system, which is different from the existing GPS, GLONASS and other navigation systems in the world. It plays an important role in ensuring the smooth transition from Beidou regional system to global system and further improving the service performance of Beidou global system in China and its surrounding areas.

Liu Tianxiong, deputy chief designer of beidou-3 satellite of the Fifth Academy of Aerospace Science and technology group, said that the closing star of the launch is the heaviest and largest satellite in the network of beidou-3 global satellite navigation system, and that the big one has great wisdom, in addition to traditional positioning navigation and time service, it also provides satellite-based enhancement, precision positioning services and short message communication services Wu, this is a more prominent feature of this star.

The data shows that the integrated design of Beidou navigation and message service has played an irreplaceable role in the fields of rescue and relief, emergency communication, search and rescue, and also led the development trend of navigation technology in the world. Satellite navigation in the United States, Europe and Russia has developed similar businesses.

Wang Ping, chief designer of beidou-3 satellite, said that after the launch, the satellite will enter the geostationary orbit through multiple orbit changes, and then conduct in orbit test. After all is normal, it will officially enter the network to provide services. Ran Chengqi, director of the China satellite navigation system management office, said before the launch, after the launch of this satellite, at the appropriate time this year, we will announce the completion of the global system and provide all our Beidou services.

Three steps

The launch of this closing star is undoubtedly a milestone. To clarify the cause and effect, we must start from the three steps of Beidou system.

Speaking of satellite positioning and navigation, there are currently four systems in the world. They are GPS of the United States, GLONASS of Russia, Galileo system of the European Union and Beidou of China. Compared with the United States, Russia and the European Union, Chinas exploration of satellite navigation system started late. Since the late last century, China has gradually determined the three-step development strategy of satellite navigation system:

2. By the end of 2012, Beidou II system was built to provide services to the Asia Pacific region;

3. Beidou No. 3 system will be built around 2020 to provide services to the world.

One belt, one road to the world, is divided into two stages: 2018, by the end of 2018, relying on the basic system of Beidou three, to achieve the coverage of all the countries along the belt and the road, covering the whole world before and after 2020.

Zheng Zhi (wechat ID: upolitics) combed and found that by the end of 2018, when the deployment of Chinas Beidou 3 basic system Constellation was completed, China announced that Beidou began to provide global services.

At that time, Beidous vision stepped out of the Asia Pacific; now, Beidou has completed the last puzzle of global coverage.

and on one s own

Among the three aforementioned satellite navigation systems of the United States, Russia and Europe, only the GPS system of the United States has the global positioning capability, while the others can only achieve regional positioning. You are welcome to say that Galileo and GLONASS are still in the business scope of our first two steps.

Therefore, at present, only the United States and China have the ability to provide global satellite positioning services. Whats more, the Beidou global navigation system developed by China has truly achieved independence, and is no longer afraid that the United States will choke on core technologies such as chips.

According to previous reports, with Beidous one, two and three steps, the localization rate of satellite navigation system has gradually increased. The authoritative media previously disclosed that in the later stage of beidou-3 system, the core technology has been 100% localized. No matter the onboard hydrogen atomic clock or chip, there are now domestic solutions.

Previously, Xie Jun, deputy chief designer of beidou-3 project, said publicly in the media that the satellite navigation system is an important space infrastructure of a country, even the support and foundation in the infrastructure. If such a system needs to use other peoples key technologies to purchase other peoples core products, once they give you the goods, your system will not be able to run stably for a long time From this point of view, our country should also have this ability and this goal.

He said that during the construction of the whole Beidou system, we have always been based on our own control. The products, key products and components on board adhere to the path of localization. By beidou-3, we have fully realized 100% localization of onboard products.

How accurate is it?

We boasted about our own big dipper for such a long time, but we dont seem to feel its existence in our life. In fact, Beidou has been widely used and even integrated into the life of every Chinese.

The most obvious example is the mobile navigation that everyone can use. At present, the mainstream smart phone processors, including Qualcomm, MediaTek and Huawei Kirin, are compatible with GPS + Beidou + GLONASS. Most Android smart phone brands (including Samsung, Huawei, Xiaomi, O / V, etc.) are purchased from the above-mentioned main manufacturers.

Previously, Zheng knew that in the interview, he had set a scenario for the relevant person in charge of Beidou navigation system: if the GPS system in the United States and GLONASS system in Russia are all invalid, and our mobile phone is only available for Beidou navigation, can users still enjoy the current convenient positioning service? The latter answer is yes.

As for the accuracy of beidou-3 system, ran Chengqi, director of China satellite navigation system management office, revealed at the press conference of the first anniversary of global service provided by beidou-3 system at the end of last year that the horizontal and vertical positioning accuracy are better than 5m.

(function(){( window.slotbydup=window .slotbydup||[]).push({id:u6056789,container:ssp_ 6056789, async:true });})(); At the conference, ran Chengqi also said that in addition to providing basic services of positioning, timing and navigation, Beidou satellite navigation system also has many characteristic application service systems, such as satellite based enhanced service, precise single point positioning service, regional short message communication service, global short message communication service, ground-based enhanced service, international search and rescue service, etc. We need to talk about star based enhanced services. The data shows that the technology can provide high precision and high integrity services for users in civil aviation, maritime, railway and other industries. As previously mentioned, todays closing star is not only used to send navigation signals, but also to enhance the satellite base. Beidou: what is the relationship between Beidou and our life? Beidou 3 closing star successfully launched! Source of this article: Zheng Zhizhi, editor in charge: Hu Shuli_ MN7479

We need to talk about star based enhanced services. The data shows that the technology can provide high precision and high integrity services for users in civil aviation, maritime, railway and other industries. As previously mentioned, todays closing star is not only used to send navigation signals, but also to enhance the satellite base.