Industry News

Home > NEWS > Industry News

Company News

Industry News

How GPS Location Trackers Work

source:Industry News release time:2022-07-07 Hits:     Popular:realtime gps tracker online


  

  The GPS system consists of 24 satellites, and any point on the earth can receive signals from at least 4 and at most 9 satellites.

  For navigation and positioning, GPS satellites are a dynamic known point. The position of the star is calculated from the ephemeris of the satellite's launch - a parameter that describes the satellite's motion and its orbit. The ephemeris broadcast by each GPS satellite is provided by the ground monitoring system. Whether the various devices on the satellite work normally, and whether the satellite has been running along the predetermined orbit, must be monitored and controlled by ground equipment. Another important role of the ground monitoring system is to keep each satellite in the same time standard - GPS time system. This requires the ground station to monitor the time of each satellite and obtain the clock difference. Then it is sent to the satellite by the ground injection station, and the satellite is then sent to the user equipment by the navigation message. The ground monitoring system of GPS working satellite includes a main control station, three injection stations and five monitoring stations.

  The task of the GPS signal receiver is to capture the signals of the satellites to be measured selected according to a certain satellite altitude cut-off angle, track the operation of these satellites, and transform, amplify and process the received GPS signals in order to measure The propagation time of the GPS signal from the satellite to the receiver antenna, the navigation message sent by the GPS satellite is interpreted, and the three-dimensional position, position, and even the three-dimensional speed and time of the station are calculated in real time.

  The navigation and positioning signal sent by GPS satellites is an information resource that can be shared by countless users. For the vast number of users in land, sea and space, as long as the user has a receiving device that can receive, track, transform and measure GPS signals, that is, a GPS signal receiver. GPS signals can be used for navigation and positioning measurements at any time. Depending on the purpose of use, the GPS signal receivers required by users are also different. At present, dozens of factories in the world produce GPS receivers, and there are hundreds of products. These products can be classified according to principle, purpose, function, etc.

  In 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 position of the receiver antenna. three-dimensional coordinates. The dynamic positioning is to use a GPS receiver to determine the trajectory of a moving object. The moving object on which the GPS signal receiver is located is called a carrier (such as a ship in flight, an airplane in the air, a walking vehicle, etc.). The GPS receiver antenna on the carrier moves relative to the earth in the process of tracking GPS satellites, and the receiver uses the GPS signal to measure the state parameters (instant three-dimensional position and three-dimensional speed) of the moving carrier in real time.

  The receiver hardware and in-machine software and the post-processing software package of GPS data constitute a complete GPS user equipment. The structure of the GPS receiver is divided into two parts: the antenna unit and the receiving unit. For the geodetic receiver, the two units are generally divided into two independent parts. During observation, the antenna unit is placed on the station, the receiving unit is placed at an appropriate place near the station, and the two are connected by cables. a whole machine. Some also make the antenna unit and the receiving unit as a whole, and place it on the station during observation.


Read recommendations:

fleet solution webfleet solutions

4G GPS Tracker supplier

G06L- 4G Car GPS Tracker

GPS selection.Hidden GPS Trackers wholesale

How to use GPS car tracker.realtime gps tracker online wholesale

Last article:GPS Tracker Features and Benefits

Next article:How gps tracker works

Related Information

gps vehicle tracker Factory

2023-04-11

gps tracker with magnet Vendor

2023-03-16

gps tracker app distributors

2023-04-23

fleet management software webfleet solutions

2023-03-16

gps tracker with magnet wholesale

2023-03-16

cat gps tracker

2023-04-11

real-time gps tracking wholesale

2023-04-23

fleet gps tracking sales

2023-04-23

GPS Tracker for vehicles Manufacturing

2023-03-16

real-time gps tracking Vendor

2023-04-23

GF20-Mini Magnet GPS Tracker

2022-06-21

TK200AM-Disposable GPS Tracker

2022-06-21

GF70L-Solar Magnetic Asset GPS Tracker

2023-10-07

TK100N- Multi functional GPS Tracker

2023-10-06

YG119- Hunting Dog GPS tracker

2023-10-07

Classification and important functions of GPS antennas

2022-08-10

GPS positioner positioning is inaccurate.gps tracker no monthly fee distributors

2023-04-25

GPS Processor (GPSPU)

2022-09-05

Design of GPS Vehicle Satellite Positioning Simulation System

2022-12-06

Where can the general car positioner be installed.obd13 gps tracker verizon Manufacturing

2023-03-10

GPS receiver.gps tracker no monthly fee distributors.gps tracker no monthly fee ufacturer

2023-04-13

GPS vehicle positioning.simple gps tracking Solution

2023-07-04

The application processor completes the GPS/Galileo function

2022-10-15

What to do if the car GPS locator shows that it is not online.Magnetic gps tracker company after ins

2023-09-16

What does the 16 channel GPS module mean?vehicle gps tracker wholesaler

2023-07-11

The manufacturer believes what application scenarios are there in the Beidou GPS positioner.gps trac

2023-05-12

A - GPS positioning

2022-10-25

GPRS/CDMA GPS antenna.gps tracker online Manufacturing

2023-08-02

GPS predecessor.4G GPS Tracker

2023-09-04

Installation of GPS navigator

2022-10-14