Introduction to Beidou Short Message Function and Application
Beidou short message technology is a unique communication function that belongs to the Beidou satellite navigation system. It uses satellite signals to achieve bidirectional short text communication between users and between users and the central control system. The Beidou short message communication service not only provides positioning function, allowing the location information of the publisher to be included in the short message, but also has the characteristics of full coverage and all-weather service. Communication experiments show that the communication delay between short point-to-point is between 1 and 5 seconds, with strong anti-interference ability, and can ensure communication even in extreme weather. The current civil Beidou short message communication service covers China and surrounding countries and regions, with the characteristics of low cost, wide coverage, high reliability, and ready access. It can effectively supplement the ground mobile communication network. In the coverage area of the Beidou navigation system and areas without ground base station signals, communication and remote device monitoring and data collection can be achieved through Beidou short message communication equipment.
Tiantong Satellite Telephone
Tiantong-1 satellite is a high orbit communication satellite independently developed and launched by China. It is mainly used for voice, SMS, and data transmission services in the signal area of ground base stations, meeting the needs of integrated communication between heaven and earth. Currently, Tiantong 1 has launched three satellites, which can cover all regions of China and surrounding countries and regions (including some countries and regions along the the Belt and Road). And it is widely used in various industries such as emergency rescue, electricity, water conservancy, energy, forestry, transportation, maritime transportation, and transportation, playing an important role. It can provide stable communication support in environments without public network base station signals. Our handheld terminal's telephone function can support making calls, sending text messages, and sending voice messages, making it a great helper for emergency communication.
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