truck tracking webfleet solutions

Home > NEWS > Other information > truck tracking webfleet solutions

Company News

Industry News

4G GPS Tracker.How is your mobile GPS located

source:truck tracking webfleet solutions release time:2024-01-17 Hits:     Popular:realtime gps tracker online

  



  To understand the principle of positioning, first popularize what GPS is. GPS (Global Positioning System) is a new generation satellite navigation and positioning system developed by the United States in the 1970s and fully completed in 1994. It has the function of real-time three-dimensional navigation and positioning in all directions at sea, land, and air. The system consists of three parts: the space part (GPS satellite), the ground monitoring part, and the user part. There are a total of 24 satellites in the space section, of which 21 are working satellites and 3 are backup satellites, distributed in 6 orbits at an angle of 60 ° to each other. The distribution of satellites allows for the observation of more than 4 satellites anywhere and at any time in the world, and maintains a geometric shape with good positioning accuracy. This provides continuous global navigation capabilities over time.

  Our mobile end belongs to the user part of the GPS system, and its built-in GPS module only has the receiving function, not the transmitting function. GPS satellites are equipped with high-precision cesium atomic clocks to ensure the accuracy of time synchronization. The satellite continuously transmits carrier signals to the Earth, which modulate broadcast ephemeris and timestamps representing the satellite's position, as well as C/A and P codes used for ranging. The C/A code is coarse and is generally used for civilian use, while the P code is fine and not easily interfered with. It is used for military use.

  After the GPS module on the mobile phone receives the GPS signal, the time difference △ t can be obtained by comparing the timestamp in the navigation message with the current time in the device. The speed of electromagnetic waves v is the same as the speed of light propagation, and v multiplied by △ t to obtain the distance between the mobile phone and the GPS satellite (the receiver satellite clock has certain errors and atmospheric propagation errors, and the measured distance is also known as pseudorange), Each GPS terminal can simultaneously obtain navigation messages from at least 4 satellites. By using the method of spatial distance resection, we can calculate the three-dimensional position and other information of the mobile terminal, so that we can understand our current position on the mobile terminal.


Read recommendations:

Gps speed limiter maker

fleet gps tracking price

G02M Pet Tracker

Car GPS positioning system.Gps speed limiter Production

The development of American GPS.GPS Tracker for vehicles Manufacturing

Last article:4G GPS Tracker.There are four mainstream satellite systems worldwide

Next article:Gps speed limiter.The application advantages of GPS measurement technology

Related Information

fleet gps tracking sales

2023-04-23

Magnetic gps tracker Vendor

2023-04-23

fleet gps trackers Solution

2023-04-23

mini gps tracker Processing

2023-04-23

fleet gps trackers company

2023-04-23

gps tracker for trailer

2023-04-23

portable gps tracker wholesaler

2023-03-16

simple gps tracking wholesaler

2023-04-23

Portable car gps systems Manufacturing

2023-03-16

real-time gps tracking Production

2023-04-23

TK200AM-Disposable GPS Tracker

2022-06-21

Mini Sized GPS Tracker PCBA

2022-06-17

G200(L) -Magnet GPS Tracker

2022-06-20

YG119- Hunting Dog GPS tracker

2023-10-07

10000mAh Magnetic Asset GPS Tracker

2025-04-08

Bring a GPS tracker and never be afraid of losing it again!

2022-09-15

Intelligent GPS anti-theft electronic system

2022-08-26

GPS base station positioning

2023-02-15

Global Navigation Satellite System

2022-11-04

What is GPS dual -frequency positioning technology?obd-II port gps tracker Manufacturing

2023-03-11

Introduction to GPS Prospects

2022-09-23

China Beidou Satellite Navigation System.obd11 gps tracker verizon manufacture

2023-03-11

GPS expansion function.gps tracker for Car wholesale

2023-06-21

The running track of the gps tracker is an important auxiliary evidence

2022-09-16

About GPS' Third Generation Chips'.gps tracker for bike Factory

2023-07-06

GPS data reception

2022-10-27

Global GPS list and parameters

2022-12-01

What is the difference between Beidou system and GPS?gps tracker no monthly fee manufacture

2023-04-14

Examples of GPS technology in the application of navigators

2023-05-16

GPS selection.Hidden GPS Trackers wholesale

2023-06-28