The North Sea area of China uses Beidou No. 3 short message communication service to carry out security information dissemination.

CTOnews.com, January 4, according to Xinhuanet, Tianjin Coastal Radio, Beihai Navigation support Center of the Ministry of Transport, recently opened a Beidou safety information broadcasting service to broadcast navigation warnings, weather warnings, weather forecasts and other Beidou maritime safety information related to ship navigation safety in the northern sea area of China.

The Beidou safety information broadcasting service is based on the Beidou 3 short message communication service and provides maritime safety information broadcasting service to the public. Through the two communication modes of maritime safety information broadcast and ship unicast, the service broadcasts navigation safety related information to users, such as navigation warning, weather warning, weather forecast and so on. to provide the majority of users with services such as accurate broadcasting of safety information based on ship position, automatic push, independent inquiry of ship safety information, customization of route safety information and so on. The majority of users can not only use the ship-borne Beidou terminal, but also combine with mobile phone App to feel the convenient services such as ship management, position monitoring, navigation trajectory inquiry, sending and receiving text messages and so on.

CTOnews.com learned that the Beidou satellite system is the third mature global satellite navigation system independently developed by China after GPS of the United States and GLONASS of Russia.

On July 31, 2020, the Beidou-3 global satellite navigation system was officially launched. The global positioning accuracy of Beidou 3 is better than 10 meters, the speed measurement accuracy is better than 0.2 meters per second, the timing accuracy is better than 20 nanoseconds, and the service availability is better than 99 percent.

Short message communication is a feature of Beidou 3. Experts say the global system of Beidou 3 is no worse than GPS, and its positioning accuracy, positioning timing and speed measurement are comparable. "when the phone has no signal, as long as there is a Beidou terminal, you can send the location and what you want to say to the call center by text message. So we have one more feature in addition to comparing in the same accuracy, range and area."