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:

cat gps tracker sales

gps tracker app distributors

C32Plus (9~90V E-bikes/Motorcycle/Car gps tracker)

Twelve problems commonly used in car GPS positioner.gps tracker für auto webfleet solutions

GPS vehicle tracking and dispatching function

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 vehicle tracker distributors

2023-04-23

Gps speed limiter Manufacturing

2023-04-23

real-time gps tracking Factory

2023-04-23

GPS Trackers sales

2023-04-11

Dog gps tracker Vendor

2023-04-23

personal gps tracker distributors

2023-04-11

gps vehicle tracker supplier

2023-04-11

GPS Trackers Factory

2023-04-11

GPS Trackers wholesale

2023-04-11

car gps tracker wholesaler

2023-04-23

G500L -4G OBD GPS Tracker

2022-09-06

YG119- Hunting Dog GPS tracker

2023-10-07

G06L

2022-06-21

G08L - 4inch Smart Tail Light Tracker

2022-06-20

C32Plus (9~90V E-bikes/Motorcycle/Car gps tracker)

2022-06-21

How to realize the function of GPS monitoring system?

2022-08-18

Are more gps tracker features better?

2022-07-19

The significance of GPS positioning technology in the construction machinery industry.obd2 gps track

2023-03-16

GPS system space part

2023-02-03

Recommended Minimum Specific GPS/TRANSIT Data (RMC) GPS recommended positioning information

2022-09-28

gps vehicle tracker.Job responsibilities of GPS car positioning management computer operators

2023-10-12

GPS satellite error.realtime gps tracker online manufacturer

2023-04-23

Which vehicles are the on-board GPS locator terminals applied to.gps vehicle tracker

2023-10-07

GPS knowledge base: what is RTK technology

2022-12-02

What is the Beidou GPS positioner?gps tracker no monthly fee distributors

2023-03-28

GPS receiver

2023-02-07

What are the fixed installation locations for GPS locators.gps tracker for trailer maker

2023-06-20

GPS emergency help

2022-10-08

The application process of GPS positioner in car loans is as follows.vehicle gps tracker Manufacturi

2023-03-17

How to choose the installation location of the wireless GPS positioner?4G GPS Tracker for vehicles

2023-03-22