With the continuous development of mobile phone positioning and smart map service, consumers' sense of location is constantly improving.
In recent years, the application of Beidou in the mass market, represented by smart phones and smart wearable devices, has made a comprehensive breakthrough. The products of international mainstream chip manufacturers, including smart phone device suppliers, widely support Beidou. Beidou foundation enhanced information has entered the smartphone, which can realize meter level positioning.
According to insiders, as Huawei, vivo, oppo, Xiaomi and other brands with high domestic sales in recent years use Beidou compatible chips, the application penetration of Beidou in smart phones has been further improved. At the same time, some brands of wearable devices have also adopted Beidou compatible chips.
According to the data of the national development and Reform Commission, the number of domestic smartphone shipments supporting Beidou reached 324 million in 2021, accounting for 94.5% of the total domestic smartphone shipments.
What are the advantages of Beidou system?
An Xudong, director of antenna and positioning Department of Theil terminal Laboratory of China Academy of information and communication, said that beidou-3 system will complete global networking in 2020 and has five functions: real-time navigation, fast positioning, accurate timing, location report and short message communication service. Among them, the short message function is a technical breakthrough unique to Beidou and not possessed by GPS.
"The so-called short message means that the satellite positioning terminal and Beidou satellite or Beidou ground service station can directly transmit two-way information through satellite signals, while GPS can only communicate in one direction (the terminal receives position signals from satellites). Beidou is the only system in the world that integrates communication and navigation well." An Xudong said.
In terms of accuracy, an Xudong said that facing China and its surrounding areas, beidou-3 system can provide satellite based enhancement (SBAS), ground-based enhancement (gas) and precision single point positioning (PPP) services. The measured horizontal and vertical positioning accuracy of Beidou system is better than 5m. The foundation enhancement system is composed of 2600 foundation enhancement stations all over the country, which can provide meter level, decimeter level, centimeter level and other services to enhance positioning accuracy.
In January this year, the Ministry of industry and information technology issued several opinions on the promotion and application of Beidou in the field of mass consumption (hereinafter referred to as the opinions). The opinion proposes to enrich the location service of intelligent terminal Beidou; Carry out pilot demonstration of high-precision positioning of smart phones; Build sub meter positioning application scenarios, etc.
According to the relevant person in charge of the Ministry of industry and information technology, the 14th five year plan is a key period for the promotion and application of Beidou. It is a key stage for expanding applications, cultivating ecology and promoting integration. In particular, the development in the field of mass consumption is facing new situations, new opportunities and new challenges.
According to the 2021 white paper on the development of China's satellite navigation and location service industry, the overall output value of China's satellite navigation and location service industry will reach 403.3 billion yuan in 2020, of which the related output value driven by derivatives will reach 273.8 billion yuan, accounting for 67.89%.
On March 31 this year, the conference on the establishment of mobile phone Beidou detection and certification system and the first batch of certification results, sponsored by China Beidou satellite navigation product testing and certification alliance and jointly undertaken by China Academy of information and communication and China Electronics Technology Network Communication Research Institute, was successfully held in Beijing. At the meeting, the first batch of models that have passed the Beidou mobile phone testing certification were released and the certification certificate was issued. The certified enterprises are oppo, vivo, Xiaomi and apple, with a total of seven product models.
"As the construction of China's Beidou satellite navigation system has stepped into the fast lane and relevant key technologies have made comprehensive breakthroughs, Beidou satellite navigation and positioning has also moved towards ordinary people's life in terms of application. Dual band Beidou high-precision smart phones, smart wearable devices and other landing products are becoming more and more abundant. Mobile phones, wearable and other smart products can realize high-precision navigation and positioning functions after using Beidou system, while integrated satellite positioning can provide higher accuracy and meet the demand In addition to meeting the daily location-based service needs, it plays an important role in the accurate positioning of special scenes such as emergency alarm, loss of children and the elderly. " An Xudong said.