Industry News

Home > NEWS > Industry News

Company News

Industry News

GPS Basics Literacy Collection

source:Industry News release time:2022-08-25 Hits:     Popular:realtime gps tracker online

  

  1. GPS system composition

  GPS gloabal Positioning System, which is built in the United States. It is mainly divided into three parts, the control station on the ground, the satellites flying in the sky, and the receiver in our hands.

  Let's talk about the equipment first. The satellite is prepared by the United States. As for the main control station, of course, it is in the mainland of the United States, in Colorado. Three ground antennas, five monitoring stations, distributed globally. The main tasks are collecting data, calculating navigation information, diagnosing system status, and scheduling satellites. There are 27 satellites in the sky, 20,200 kilometers from the ground. 24 of the 27 satellites are operational and 3 are spare. These satellites have been updated with five models in three generations. The satellite transmits two signals: L1 and L2. L1: 1575.42MHZ, L2: 1227.60MHZ. The clock on the satellite uses a cesium atomic clock or a rubidium atomic clock, and plans to use a hydrogen atomic clock in the future. In hand, is the receiver. Large and small, various poses and expressions, there are pocket, backpack, vehicle, ship, airborne and so on. Common handheld receivers receive L1 signals, as well as dual-frequency receivers for precise positioning.

  2. About GPS receiver

  GPS is now generally 12 channels, which can receive 12 satellites at the same time. Earlier models, such as the GARMIN 45C, were 8 channels. The GPS receiver can output 2D (that is, 2-dimensional) data after receiving signals from 3 satellites, only latitude and longitude, but no altitude. If it receives more than 4 satellites, it will output 3D data, which can provide altitude. However, because of the problem of the earth itself, it is not a very standard circle, so there are some errors in the height data. Now some GPS receivers have built-in barometers, such as etrex's SUMMIT and VISTA. These machines synthesize the final altitude based on the altitude data obtained from the two channels, which should be more accurate.

  When the GPS receiver is turned on for the first time, or the last time it was turned off is more than 800KM away from the start-up distance, because the ephemeris stored in the receiver is not correct, it must be repositioned on the receiver.

  The use of GPS receivers should be under the open visible sky, so it cannot be used indoors. The accuracy of handheld GPS is generally about 10 meters, which means that a road can be seen to the left or the right. The accuracy mainly depends on the signal reception of satellites and the distribution of satellites that can receive signals in the sky. If the distribution of several satellites is relatively scattered, the positioning accuracy provided by the GPS receiver will be relatively high.


Read recommendations:

gps tracker for kids

gps vehicle tracker company

G08L - 4inch Smart Tail Light Tracker

The manufacturer summarizes the main application scope of Xi'an's long standby GPS.obd2 gps tracker

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

Last article:50 fire trucks are equipped with GPS global positioning and navigation system

Next article:What can GPS do besides navigation?

Related Information

car gps tracker supplier

2023-04-23

Gps speed limiter distributors

2023-04-23

gps vehicle tracker custom

2023-04-11

fleet gps trackers Vendor

2023-04-23

obd2 tracker

2023-03-16

Cantrack GPS Tracker

2023-03-16

obd2 tracker supplier

2023-03-16

Cantrack TK100

2023-03-16

fleet tracking mobile app

2023-03-16

gps vehicle tracker price

2023-04-11

G02M Pet Tracker

2022-06-19

TK103B

2022-06-20

TK200AM-Disposable GPS Tracker

2022-06-21

P901 4G ID Card GPS Tracker Smart Walkie-talkie

2025-07-11

G05N Vehicle Tracker

2022-06-21

Development Trend of Automobile GPS Positioning System

2022-12-07

What car GPS positioner should be installed with a mortgage car?plug & play Obd gps tracker Manu

2023-03-25

The manufacturer believes how to effectively prevent the vehicle positioning system from being destr

2023-05-10

The advantages and disadvantages of the flat antenna of the GPS vehicle positioning terminal

2023-04-06

The application of the GPS positioning system in the breeding industry

2023-02-23

The advantages of "Galileo" GPS positioning system

2023-02-11

GPS navigation satellite has a high-precision atomic clock for time service

2022-12-29

How to detect whether the car is installed with a GPS locator?obd-II port gps tracker distributors

2023-04-04

The complete installation step of the wiring car GPS positioner

2023-03-28

GPS device.obd2 gps tracker verizon manufacturer

2023-05-20

Three Tips for Choosing a Reliable GPS Vehicle Navigation System.GPS Tracker for vehicles Manufactur

2023-08-08

Application examples of GPS technology in navigators.fleet gps tracking supplier

2023-07-24

GPS personal positioning

2022-12-15

Factors related to GPS satellites

2022-10-10

Classification of Automotive GPS Navigation Systems

2023-07-27