one-click help without network, fastest positioning in 5 seconds qianxun positioning releases the first satellite communication terminal "beidou messenger"
2024-09-25
한어Русский языкEnglishFrançaisIndonesianSanskrit日本語DeutschPortuguêsΕλληνικάespañolItalianoSuomalainenLatina
xinmin evening news (reporter ye wei) space-time intelligent technology company qianxun location network co., ltd. today released the first national-level beidou satellite communication terminal "beidou messenger lingxi edition". beidou messenger is less than one-third the size of an ordinary mobile phone, but it independently integrates the full capabilities of china's beidou satellite navigation system: it can achieve accurate positioning in as fast as 5 seconds in areas without a network, and communicate with the outside world in two directions. among them, satellite communication is a unique capability of the beidou system that distinguishes it from the other three major global satellite navigation systems (gps, galileo, and glonass).
according to relevant data, at present, more than 60% of remote areas in my country have no ground mobile communication network coverage, such as non-scenic area management areas, high-altitude mountains and fields, desert middle areas, deep mountain jungles, border uninhabited areas, etc., resulting in the inability to quickly locate or even fail to locate, and unable to send distress messages to the outside world. the beidou satellite in the sky provides an effective supplement to the communication methods in areas without networks. the beidou messenger launched by qianxun location has functions such as two-way beidou satellite message communication and precise positioning. users connect it to smart devices such as mobile phones through bluetooth, and upload location information through the "qianxun messenger" app in an environment without a mobile communication network, realizing one-click sos distress, one-click safety reporting, and sending and receiving customized beidou satellite messages.
the picture shows the interface screenshot of the satellite information sos sender and receiver/provided by the interviewee
the launch of beidou messenger has greatly lowered the threshold for using beidou satellite communications, allowing every mobile phone to realize satellite communication functions. it is compatible with mobile phones with android 10, ios 13 and above operating systems. users do not need to replace mobile phones with beidou satellite communication functions to realize satellite communication. in addition, when the mobile phone is out of power or broken, users can use beidou messenger alone to report safety or sos with one click.
from the underlying satellite positioning and satellite communication chips, to the satellite high-precision positioning services, to the satellite communication service platform, beidou messenger is all independently developed by qianxun location. in terms of chip research and development, qianxun location has developed its own rf baseband integrated soc chip that supports the beidou-3 regional short message function - qianxun star language bm3111. the chip has been optimized in terms of size, power consumption, performance, etc., and has the advantages of small size and low power consumption. in terms of transceiver performance, the technical team has solved the problem that traditional satellite communications require larger external antennas, built-in professional antennas, and optimized algorithms. test data shows that in simulated outdoor travel scenarios, including under the shade of trees, surrounded by mountains on three sides, etc., the success rate of transceiver can reach more than 95%.
it is reported that qianxun location has built more than 5,000 gnss satellite-based/ground-based augmentation stations around the world, accumulating massive, high-quality original satellite observation data. when solving the problem of "rapid positioning in areas without a network", technical experts can stably output real-time, high-precision satellite system precise orbits and clock errors based on these massive observation data, and thus develop a forecast algorithm model to generate long-term ephemeris, and push long-term ephemeris forecasts of up to 28 days to beidou messenger when there is a network, and the forecast accuracy is "only 1 meter error per day", so that beidou messenger can continue to quickly locate based on these ephemeris data in an environment without a network, and the initial positioning time is shortened to the fastest 5 seconds.
