Release date：2021-12-28Author source：KinghelmViews：242
Part I: system conditions
Total satellites currently in orbit service45, includingBeidou-2 satellite15，Beidou-3 satellite30, in good health and stable on orbit operation.
As of March this year, in terms of space signal quality, the measured signal power spectrum envelope of Beidou satellite remained consistent, the signal quality was good, and met the requirements of interface control documents. In terms of spatial signal accuracy, Beidou SystemThe mean value of spatial signal ranging error (sisre) is 0.42 M。
In terms of Coordinate Datum and time datum, the difference between Beidou time and international UTC remains atWithin 26 NS, the accuracy of Beidou coordinate frame is consistent with that of international itrf2014 coordinate parametersWithin 3cm。
Promote the construction of Beidou system operation management coordination organization and linkage mechanism with Chinese characteristics to ensure the continuous and stable operation and stable performance of Beidou No. 3 system since it was put into service. Beidou system always adheres to first-class indicators and first-class services, and constantly upgrades to meet the needs of users all over the world.
At present, Beidou system providesNavigation and positioningandCommunication data transmissionTwo categories and seven services. Including: facing the world, providingPositioning navigation timing、Global short message communication(GSMC) andInternational search and rescue(SAR) three services; In China and surrounding areas, provideSatellite based enhancement（SBAS）、Foundation reinforcement（GAS）、Precise single point positioning(PPP) andRegional short message communication(RSMC) four services.
Positioning, navigation and timing service, global measured positioning accuracy and horizontal directionBetter than 2.5m, verticalBetter than 5.0m； Velocity measurement accuracyBetter than 0.2 M / S, timing accuracyBetter than 20 nanoseconds。System continuity increased to99.996%, availability increased to99%。
Global short message service can provide trial service for global users through 14 MEO satellites, with maximum single message length560 bits, about40 Chinese characters。
International search and rescue service, the on orbit test of 6 MEO satellites and their search and rescue payload has been completed. On the basis of conforming to international standards, Beidou featured B2B return link confirmation function is provided for users around the worldDistress alarmService.
Regional short message service: at present, Beidou 3 regional short message service provides services for users in China and surrounding areas, with the maximum single message length14000 bits, about1000 Chinese characters。
Precision single point positioning service. At present, precision single point positioning signals have been broadcast through three geo satellites to provide precision single point positioning service. Positioning accuracy measured value levelBetter than 20 cm, elevationBetter than 35 cm, convergence time15 ~ 20 minutes。
Satellite based enhanced service covers users in China and surrounding areas, supports two enhanced service modes of single frequency and dual frequency multi constellation, and meets the requirements of ICAO for positioning accuracy, alarm time, integrity risk and other indicators. At present, the satellite based enhanced system service platform has been basically completed and is facingCivil aviation, maritime and railwayProvide commissioning service for users with equal integrity.
The foundation enhancement service is provided to industry and public users by using the frame network benchmark station and regional network benchmark station built in ChinaReal time centimeter level, millimeter levelLocate enhanced services.
We will also follow the idea of focusing on the core, reshaping the structure and enabling integration,By 2035, build a more ubiquitous, integrated and intelligent national integrated positioning, navigation and timing (pnt) system。
In terms of the development of the next generation integrated pnt system, standardized solutions will be adopted and various means will be used to meet the maximum common needs of users. Further improve the satellite navigation capability and realize decimeter high-precision positioning capability and global integrity service; The new pnt capability is realized by using the communication system resources, and the communication reachable area can be navigated by enabling each other; Micro autonomous pnt to achieve autonomous acquisition of navigation, positioning and timing information.
At the same time, synchronous efforts are made on the supply side and the demand side to open up the pnt capacity generation chain, so that pnt can really be used and used well.
Focus on standardized solutions, integrate various technologies and systems, and take advantage of the scientific and technological revolution to provide users around the world with unified benchmark, seamless coverage, safe, reliable, convenient and efficient pnt services, so as to provide core support for future intelligent development.
Part II: application and promotion
Beidou system has fully served industries such as transportation, public security, disaster relief and mitigation, agriculture, forestry, animal husbandry and fishery, integrated into infrastructure such as power, finance and communication, widely entered the fields of mass consumption, sharing economy and people's livelihood, profoundly changed people's production and life style, and produced remarkable economic and social benefits. In 2020, the overall output value growth of China's satellite navigation and location service industry will continue to accelerate, reaching403.3 billion yuanRMB, compared with 2019Growth of about 16.9%To achieve the goals of the 13th five year plan.
According to the actual situation of Beidou application, we select and release documents such as basic product directory and Beidou typical application cases. Today, we officially released the Beidou satellite navigation system public service performance specification (version 3.0) here, which introduces in detail the performance indicators of various services, which can be queried and downloaded on the Beidou system government website (www.beidou. Gov.cn).
In terms of basic products, by the end of 2020, the sales volume of domestic Beidou compatible chips and modules had reached 100 million, and the quarterly shipments had exceeded 100 million10 million tablets； The total social ownership of end products with Beidou positioning function exceeds1 billion sets / set； In 2020, the total shipments of centimeter application high-precision chips, modules and boards in China will grow at a high speed and break through1 million tablets。
Popular application, with remarkable results. Since the opening of the system, includingHuawei, apple and other mainstream smartphone manufacturers at home and abroad support Beidou。 According to statistics, in the first quarter of 2021, the number of smart phones applying for network access to support Beidou Positioning reached79%。 Beidou foundation enhanced information has entered the smartphone and can be realizedMeter level positioning。
Transportation field, Beidou system is widely used in key transportation process monitoring, highway infrastructure safety monitoring, port high-precision real-time positioning and dispatching monitoring and other fields. 2020, exceeding7 million road operating vehiclesBeidou system has been installed and used;36300 postal express vehiclesInstall Beidou terminal; about1600 official shipsInstallation and use of Beidou system; about350 general purpose aircraftBeidou system, accounting for 12%, was used for the first timeTransport aircraft。
Agriculture, forestry and fisheryBased on Beidou system, the automatic driving system of agricultural machinery exceeds45000 sets, saving50%Labor cost; The agricultural machinery operation supervision platform and Internet of things platform based on Beidou system areMore than 400000 sets of agricultural machinery and equipmentProvide service, which greatly improves the efficiency of operation management; The positioning and short message communication functions of Beidou system are widely used in forest fire prevention, natural forest protection, forest natural investigation, pest control and so on. In terms of fishery, Beidou provides fishery management departments and fishing vessels with services such as ship position monitoring, emergency rescue, information release, fishing vessel entry and exit management, etc.
Disaster reduction and relief, based on the high-precision positioning technology and short message communication function of Beidou system, it providesReal time disaster relief command and dispatching、emergency communication、Rapid reporting and sharing of disaster informationAnd other services to significantly improve the rapid response ability and collaborative command ability of disaster emergency rescue. Jiangsu, Guizhou, Sichuan and other places use Beidou high-precision technology to establish geological disaster monitoring and early warning systems for monitoring24-hour real-time monitoringWe have successfully warned against geological disasters such as landslides for many times to ensure the safety of people's lives and property.
stayEmerging application areas"Beidou great health" is becoming a new hot spot of application, facing all aspectsEpidemic prevention monitoring、Telemedicine、Intelligent pensionExpand applications and promote the realization of intelligent health services for everyone.
stayDigital construction, Beidou satellite positioning, multi-sensor and Internet technologies are widely used inMine, railway, highway, airport, port, power infrastructureDuring the construction process, it significantly improves the quality and efficiency of project construction, reduces the labor and material cost investment, and effectively improves the safety level.
along withBeidou 5gThe two infrastructures strengthen, empower and promote each otherFinancial technology, financial terminal, financial platform, financial data and financial servicesWith the development, the application mode of Beidou system will be richer.
stayOverseas promotion, domestic Beidou basic products have been exported toMore than 120 countries and regions, land ownership, precision agriculture and smart port based on Beidou have been established inASEAN, South Asia, Eastern Europe, West Asia, AfricaIt has been successfully applied in other places to serve local economic and social development and share the achievements of satellite navigation construction and development.
stayPolicies and regulations, continue to promote the promulgation of the regulations of the people's Republic of China on satellite navigation. As of April 2021, policies and regulations related to satellite navigation have been issuedMore than 1000 pieces。 The Beidou rule of law forum of this annual meeting will release the report on the rule of law construction of Beidou satellite navigation system, comprehensively and systematically summarize the achievements and experience of Beidou rule of law construction, and escort the large-scale industrialization development of Beidou.
stayStandardization, completed the change of the national Beidou satellite navigation Standardization Committee and issued it accumulatively32 national standards in Beidou field，56 Beidou special standards, which strongly supports the construction, operation and maintenance, large-scale application and industrial development of Beidou project. The national Beidou satellite navigation standard system has been revised and will be released soon, providing a basis for the preparation and revision of national standards in the Beidou field in the next five years.
With the strong support of the Ministry of industry and information technology, the national development and Reform Commission, the Ministry of transport and other relevant national ministries and commissions, the development of Beidou industrialization has become the focus of the 14th five year plan. Relevant ministries and commissions have issued Beidou special development plans, defined the five-year development plan of Beidou system, and promoted the high-quality development of Beidou industry.
It is expected that by the end of the 14th five year plan, the overall output value of satellite navigation location and services in China will double and break throughTrillion yuan mark, the global market share has doubled, and Beidou's industrialization has moved forward to a wider scope, a higher level and a higher level.
Part III: International Cooperation
The construction and development of Beidou system always adhere to the principles of openness, cooperation and resource sharing, actively carry out international cooperation and exchanges, and help the development of global satellite navigation.
In accordance with the Intergovernmental satellite navigation system cooperation agreement that has entered into force, China and Russia are jointly preparing the road map of China Russia satellite navigation cooperation from 2021 to 2025 to provide planning guidance for China Russia satellite navigation cooperation in the next five years. Under the framework of the project committee, continue to promote cooperation projects such as joint testing, station construction coordination, precision agriculture and cross-border transportation.
China and the United States continue to carry out communication and coordination on compatibility and interoperability between Beidou and GPS, strengthen cooperation in satellite based systems and civil services, promote the construction and development of the two systems and jointly serve the people of the world.
China and Argentina signed a memorandum of understanding on cooperation. This is the first time that Beidou has signed a cooperation agreement with countries in South America, marking the formal establishment of a normalized cooperation mechanism in the field of satellite navigation. According to the cooperation agreement, China and Argentina will cooperate in the fields of joint application of satellite navigation, test and evaluation, education and training, and accelerate the promotion of Beidou system to serve the national economic and social development of Argentina.
The third China ASEAN Beidou application and industrial development cooperation forum was held. With the theme of "new industrial development and integration of new ecology", the forum promoted the construction of "Beidou" industrial ecology through online and offline forms, and promoted in-depth cooperation and win-win with ASEAN countries.
This year, China will also hold the third China Arab Beidou Cooperation Forum, the second China Central Asia Beidou Cooperation Forum, the first China Africa Beidou Cooperation Forum, the Beidou day of Dubai World Expo and other large-scale international activities to share the achievements of Beidou system construction and development and benefit mankind.
In terms of multilateral cooperation, China has actively participated in international activities under the framework of international organizations such as the United Nations Space Agency and relevant multilateral mechanisms, and participated in activities to commemorate the 50th anniversary of China's restoration of its legitimate seat in the United Nations. Attend the Munich satellite navigation summit and the 58th meeting of the science and technology group of the United Nations Space Commission online to introduce the latest progress of Beidou; Successfully organized one belt, one road training course for technology and application. Create satellite navigation to become a world-class authoritative journal in the field of satellite navigation, promote the development of satellite navigation science and technology, and actively contribute Chinese wisdom to the development of world satellite navigation.
Continue to promote the Beidou system to enter the standard system of international organizations such as civil aviation, maritime affairs, search and rescue satellite and Electrotechnical Commission; In November 2020, at the sixth plenary meeting of the ICAO navigation system expert group, the technical verification of 189 performance indicators of beidou-3 global system passed, marking the successful completion of the core and main task of beidou-3 global system entering the ICAO standard work.
The annual China Satellite Navigation Conference has been held for 12 consecutive sessions with an annual number of more than 3000 participants. It has become a high-level and international comprehensive exchange platform in the field of satellite navigation and is playing a positive role in the development of satellite navigation technology and applications in the world.
Looking forward to the future, while ensuring the stable operation of the Beidou system, the pace of Beidou's development will not stop. We will continue to uphold the development concept of "China's Beidou, the world's Beidou and the first-class Beidou", practice the Beidou spirit of a new era of "independent innovation, openness and integration, unity and the pursuit of excellence", and constantly promote the upgrading and development of the Beidou system, Make new and greater contributions to serving the development of human society and building a community with a shared future for mankind.
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