truck tracking webfleet solutions

Home > NEWS > Other information > truck tracking webfleet solutions

Company News

Industry News

GPS positioning manufacturers introduce the composition of satellite positioning systems.Dog gps tracker Manufacturing

source:truck tracking webfleet solutions release time:2023-06-14 Hits:     Popular:realtime gps tracker online

  

  1. Space part

  The space part of GPS is composed of 24 working satellites, which are located 20 200 km above the earth's surface, evenly distributed on six orbital planes (four for each orbital plane), and the Orbital inclination is 55 °. In addition, there are four active backup satellites in orbit. The distribution of satellites enables the observation of more than 4 satellites anywhere and at any time in the world, and maintains a geometric image with good positioning and calculation accuracy. This provides continuous global navigation capabilities over time. The GPS satellite generates two sets of codes, one of which is called the C/A code (Coarse/Acquisition Code 11023MHz); A group called Procise Code (10123MHz) is controlled by the US military due to its high frequency, low interference, and high positioning accuracy. It has a password and cannot be interpreted by ordinary people, mainly serving the US military. After deliberately reducing the accuracy of the C/A code through measures taken, it is mainly open for civilian use.

  2. Ground control part

  The ground control section consists of one main control station, five global monitoring stations, and three ground control stations. The monitoring stations are equipped with precision cesium clocks and receivers that can continuously measure all visible satellites. The satellite observation data obtained by the monitoring station, including ionospheric and meteorological data, will be preliminarily processed and transmitted to the main control station. The main control station collects tracking data from various monitoring stations, calculates the satellite's orbit and clock parameters, and then sends the results to three ground control stations. The ground control station injects these navigation data and main control station commands into each satellite as it reaches the sky. This injection is performed once a day on each GPS satellite and the final injection is performed before the satellite leaves the injection station's operational range. If a ground station malfunctions, the navigation information stored in the satellite can still be used for a period of time, but the navigation accuracy will gradually decrease.

  3. User Equipment Section

  The user equipment part is the GPS signal receiver. Its main function is to capture the selected test satellites according to a certain satellite cutoff angle and track their operation. After the receiver captures the tracked satellite signal, it can measure the pseudo distance and the rate of change of distance from the receiving antenna to the satellite, and demodulate data such as satellite orbit parameters. Based on these data, the microprocessor in the receiver can perform positioning calculations according to the positioning solution method, calculating the longitude and latitude, height, speed, time and other information of the user's geographical location. The receiver hardware, onboard software, and GPS data post-processing software package constitute a complete GPS user device. The structure of a GPS receiver is divided into two parts: an antenna unit and a receiving unit. The receiver generally uses two types of DC power sources, internal and external. The purpose of setting up the internal power supply is to continuously observe without interruption when replacing the external power supply. The battery automatically charges when using an external power source. After shutting down, the internal battery supplies power to the RAM memory to prevent data loss. Various types of receivers are becoming smaller in size and lighter in weight, making them easy to observe and use in the field.


Read recommendations:

4G GPS Tracker Vendor

GPS Tracker for vehicles Manufacturing

G03

Automatic optimization and scheduling function of mining GPS positioning system.Gps speed limiter

Bracelet GPS positioner and anti -lost device!car gps tracker maker

Last article:What is the difference between GPS positioning manufacturers and in car reverse imaging WiFi and 4G.

Next article:What are the information methods sent by GPS reference stations.gps tracker app Manufacturing

Related Information

GPS Tracker custom

2023-04-11

GPS Tracking custom

2023-04-11

fleet tracking mobile app

2023-03-16

Magnetic gps tracker sales

2023-04-23

mini gps tracker Solution

2023-04-23

realtime gps tracker online wholesale

2023-04-23

4G GPS Tracker for vehicles Factory

2023-04-23

mini gps tracker Processing

2023-04-23

4G GPS Tracker wholesale

2023-04-23

gps tracker for bike supplier

2023-04-23

TK100 (GT06) Vehicle Tracker

2022-06-20

G900LM-4G Car Mini GPS Tracker

2025-03-25

TK200AM-Disposable GPS Tracker

2022-06-21

G03

2022-06-21

G900LM-4G Car GPS Tracker

2025-03-25

GPS application in ionospheric monitoring

2022-08-02

What is the relationship between car-hailing and gps locator?

2022-07-18

New solutions of intelligent GPS anti-theft electronic system for automobiles.gps tracker for kids m

2023-04-18

GPS Vehicle Locator

2022-08-09

The correct method of using the car GPS positioning system shallow analysis.realtime gps tracker onl

2023-03-28

GPS data reception

2022-10-27

Gps speed limiter.GPS monitoring and dispatching passenger transportation center

2023-10-14

GPS power consumption and noise

2022-09-01

GPS active ranging and passive range.car gps tracker Solution

2023-04-19

Selection of GPS hardware architecture

2022-12-08

What should be considered in addition to the positioning and navigation performance when choosing GP

2022-10-28

Overview of GPS Clock.OBD GPS Tracker manufacturer

2023-07-18

New solutions of intelligent GPS anti-theft electronic system for automobiles

2022-12-07

The Application of GPS Navigation System in Road Engineering.4G GPS Tracker for vehicles equipment

2023-08-24

GPS market prospects.gps tracker no monthly fee company

2023-05-24