The working principle of 3G GPS tracker

3G GPS tracker for car is an ideal asset tracker with a compact design and can be used for asset tracking and cargo tracking.

The magnetic GPS tracker is installed using a magnet attachment method. We don't need to connect wires for him. Reduce our workload and improve work efficiency

When your GPS tracker for logistic enters any specific location of your choice, you can get an instant alert.

If you want to know the arrival location of assets in real time, magnetic GPS locators will come into play. Open the tracking APP, you can know the location of the goods through your mobile phone or computer.

Navigation and positioning:

GPS satellite is a dynamic known point, provided by the ground monitoring system. Whether the various equipment on the satellite is working normally, and whether the satellite has been running along the predetermined orbit, must be monitored and controlled by the ground equipment.

The ground monitoring system of GPS working satellite includes a master control station, three injection stations and five monitoring stations.

GPS signal receiver:

It can capture the signals of the satellites to be measured selected according to a certain satellite altitude cut-off angle, and track the operation of these satellites.

Transform, amplify and process the received GPS signal to measure the propagation time of the 3g gps tracker for car signal from the satellite to the receiver antenna, interpret the navigation message sent by the GPS satellite, and calculate the three-dimensional position of the station in real time. Location, even three-dimensional speed and time.

Navigation and positioning signal:

For the vast number of users on land, sea and space, as long as the user has a receiving device that can receive, track, transform and measure GPS signals.

Depending on the purpose of use, GPS signal receivers required by users are also different. At present, there are dozens of factories in the world producing GPS receivers, and there are hundreds of products. These products can be classified according to principle, purpose, function, etc.

Static positioning:

The GPS receiver is fixed in the process of capturing and tracking GPS satellites. The receiver measures the propagation time of the GPS signal with high precision, and uses the known position of the GPS satellite in orbit to calculate the three-dimensional coordinates of the receiver antenna location.

The dynamic positioning is to use a GPS receiver to determine the trajectory of a moving object. The moving object where the GPS signal receiver is located is called the carrier.

The GPS receiver antenna of 3g gps tracker for car on the carrier moves relative to the earth in the process of tracking GPS satellites, and the receiver uses GPS signals to measure the state parameters of the moving carrier in real time.