truck tracking webfleet solutions

Home > NEWS > Other information > truck tracking webfleet solutions

Company News

Industry News

Beidou Navigation system-GPS system composition and working principle

source:truck tracking webfleet solutions release time:2022-10-20 Hits:     Popular:realtime gps tracker online

  

  The system composition of the Beidou Navigation and Positioning system is as follows: it consists of two geostationary satellites (800E and 1400E), one in-orbit backup satellite (110.50E), the central control system, the standard calibration system and various user machines, etc.

  The working process of the system is as follows: First, the central control system sends inquiry signals to satellite I and satellite II simultaneously, and broadcasts to users in the service area of the satellite forwarder. The user responds to the inquiry signal from one of the satellites and simultaneously sends the response signal to both satellites, which is forwarded back to the central control system. The central control system receives and demodulate the signal sent by the user, and then carries on the corresponding data processing according to the applied service content. For the positioning application, the central control system measured two time delays: namely, the inquiry signal sent from the central control system was forwarded to the user by a certain satellite, and the user sent the positioning response signal was forwarded back to the central control system by the same satellite. And the delay of sending an inquiry signal from the central control, reaching the user via the same satellite mentioned above, and the user sending a response signal and forwarding it back to the central control system via another satellite. As a result of the position of the center control system and the two satellites were known, and thus can calculate the amount of users by the above two delay, the distance to the first satellite and the user to the sum of two satellites distance, so they know the user in a first satellite as a sphere, its center and between two satellites as the focus of the ellipsoid to pay online. In addition, the central control system can find the user's elevation value from the digital topographic map stored in the computer and know that the user is on an ellipsoid parallel to the earth reference ellipsoid. Thus, the central control system can finally calculate the three-dimensional coordinates of the user's point, which are encrypted and sent to the user by the outbound signal.


Read recommendations:

car gps tracker manufacture

Portable car gps systems Manufacturing

GF70L-Solar Magnetic Asset GPS Tracker

What is the general installation of a car GPS locator?obd2 gps tracker verizon manufacturer

GPS predecessor

Last article:Advantages of Bluetooth GPS

Next article:GPS China Beidou navigation satellite

Related Information

Asset GPS Tracker

2023-03-16

gps tracker no monthly fee

2023-04-23

Best hidden gps trackers

2023-04-11

Gps speed limiter maker

2023-04-23

Gps speed limiter manufacturer

2023-04-23

rastreadores gps

2023-03-16

Pet GPS Tracker Manufacturing

2023-03-16

fleet gps tracking manufacturer

2023-04-23

car gps tracker Solution

2023-04-23

mini gps tracker Vendor

2023-04-23

TK100N- Multi functional GPS Tracker

2023-10-06

G08L - 4inch Smart Tail Light Tracker

2022-06-20

G900LM-4G Car GPS Tracker

2025-03-25

VSL100 GPS Speed Limiter, Speed Governor

2022-06-19

G900LS-4G Car GPS Tracker

2023-10-06

Actual demand and development trend of GPS market

2022-12-22

Factors related to GPS satellites

2022-10-10

Civil GPS

2022-12-28

What is the DGPS function?

2022-10-26

GPS positioner application in logistics management

2023-02-08

The role of UAV GPS module

2022-10-13

What's wrong with GPS positioning showing offline?

2022-09-20

GPS development in the United States

2022-11-24

GPS module with AGPS function

2022-10-12

gps vehicle tracker.Automotive GPS positioning software and global positioning system satellites

2023-11-11

The purpose and prospect of the GPS vehicle management system.rastreadores gps wholesaler

2023-03-15

Interpreting how to install a dash cam

2023-06-27

Introduction to GPS Positioning Principles.gps tracker no monthly fee Processing

2023-04-20

Can the car GPS locator be used indoors and underground parking lots?realtime gps tracker online Man

2023-03-25

The manufacturer believes how to determine the radar, GPS, Beidou and radio positioning.gps tracker

2023-06-17