E-lins industrial 5g router with sim card gps function

Global Positioning System is a medium-distance circular orbit satellite navigation system. It can provide accurate positioning, speed measurement and high-precision time standards for most areas (98%) on the earth's surface. The system is developed and maintained by the US Department of Defense, which can meet the needs of military users located anywhere in the world or in near-Earth space to continuously and accurately determine the three-dimensional position, three-dimensional motion and time.

There are many types of 5g router with sim card GPS satellite receivers. According to the model, they are divided into geodetic, total station, timing, handheld, and integrated; according to their use, they are divided into vehicle-mounted, ship-borne, air-borne, space-borne, and missile-borne. .

Classified by the purpose of the receiver:

1. Navigation receiver

This type of receiver is mainly used for navigation of a moving carrier, and it can give the position and speed of the carrier in real time. This type of receiver generally uses C/A code pseudorange measurement, and the single-point real-time positioning accuracy is low, generally±10m, and±100m when there is SA influence. This type of receiver is cheap and widely used. According to different application areas, this type of receiver can be further divided into:

Vehicle-mounted type-used for vehicle navigation and positioning;

Nautical type-used for ship navigation and positioning;

Aviation type-used for aircraft navigation and positioning. Due to the high speed of the aircraft, the receivers used in aviation are required to be able to adapt to high-speed movements.

Spaceborne type-used for satellite navigation and positioning. As the speed of the satellite is as high as 7km/s or more, the requirements on the receiver are higher.

2. Geodetic receiver

Geodetic receivers are mainly used for precision geodetic surveys and precision engineering surveys. This type of instrument mainly uses the carrier phase observation value for relative positioning, and the positioning accuracy is high. The structure of the instrument is complicated and the price is relatively expensive.

3. Timing receiver

This type of receiver mainly uses the high-precision time standard provided by GPS satellites for timing, and is often used for time synchronization in astronomical observatories and radio communications.