Satellite Internet of Things takes satellite communication as the main mode of information transmission, in accordance with the standard communication protocol of the air-space-ground integrated information network, uses satellite communication sensors and other sensors and other sensors that are not convenient to connect in the ground communication network to obtain object information, and through a variety of network access technologies, connects things and things, people and things, and people and people, and carries out information exchange and communication, so as to realize the functions of intelligent identification, positioning, tracking, monitoring and management of objects.
Compared with the traditional IoT, the satellite IoT has the following advantages:
Global coverage: Satellites have a wide range of coverage and can achieve global coverage. A constellation of multiple satellites provides global coverage, while ground-based sensors provide uninterrupted connectivity within the satellite coverage area.
Low weather and geographical impacts: Satellites located outside the atmosphere are relatively less affected by weather and geographical conditions, and the system can operate around the clock.
Strong indestructibility: Satellite communication means can still provide normal Internet of Things communication services even if the ground communication network is damaged, and provide emergency communication and rescue services for disaster areas.
Large system capacity: The wide available frequency band of satellites, coupled with the wide application of multi-beam spaceborne antenna technology, improves the system capacity and can support the connection needs of massive terminals.
The rise of satellite Internet of Things will provide broader possibilities for information interconnection on a global scale. At present, the industry is making in-depth layout and actively exploring to promote the high-quality development of the satellite Internet of Things. With the rapid development of digital China, the satellite Internet of Things is playing an increasingly important role.
The development trend of the satellite Internet of Things industry.
As a new communication mode that supports the intelligent connection of all things, the satellite Internet of Things can provide Internet of Things access services for ground and air terminals, and has great strategic and economic value in the military and civilian fields. At present, developed countries such as the United States and Europe are speeding up the construction of a large number of satellite systems with real-time information processing capabilities, so as to form a large-scale network that can radiate the whole world. In China, as an important part of the construction of new national infrastructure, the satellite Internet of Things is accelerating the implementation of related applications under the multiple drivers of national policies and regulations, technological upgrading, and market demand, and the industrial scale is growing rapidly.