source:truck tracking webfleet solutions release time:2022-08-26 Hits: Popular:realtime gps tracker online
1. Satellite track
There are 24 GPS satellites orbiting the earth in six orbits (groups of four), and generally no more than 12 satellites are on the same side of the earth, and most GPS receivers can track 8 to 12 satellites. At least 3 satellites are required to calculate LAT/LONG (2D) coordinates. Add one more to calculate 3-dimensional coordinates. For a given location, the GPS receiver knows which satellites are nearby at the time because it is constantly receiving updates from the satellites.
2. Parallel channel
Some consumer GPS devices have 2 to 5 parallel channels to receive satellite signals. Because up to 12 satellites may be visible (the average is 8), this means that the GPS receiver must visit each satellite in sequence to obtain information about each satellite.
Most GPS receivers on the market are of the 12-parallel channel type, which allows them to continuously track the information of each satellite. The advantages of 12-channel receivers include fast cold start and initialization of satellite information, and can have more information in forest areas. good reception. Generally 12 channel receivers do not need an external antenna, unless you are in an enclosed space, such as a cabin, a car.
3. Positioning time
This is the time it takes for your GPS receiver to determine your current location when you restart it. For a 12-channel receiver, if you are near the location of the last positioning, the positioning time is generally 3 to 5 minutes during a cold start and 15 to 30 seconds during a hot start, while for a 2-channel receiver, the cold start is mostly more than 15 minutes, 2 to 5 minutes during hot start.
4. Positioning accuracy
The horizontal position positioning accuracy of most GPS receivers is around 5m to 10m, but this is only when SA is not turned on.
Read recommendations:
gps vehicle tracker manufacture
GPS tracking monitoring promotes mobile logistics management
Last article:Introduction to the physical signal of GPS
Next article:Development Trend of Automotive GPS Positioning System
Related Information
mini gps tracker Vendor
2023-04-23gps vehicle tracker Vendor
2023-04-23gps vehicle tracker sales
2023-04-23trailer gps tracker
2023-04-11realtime gps tracker online
2023-04-11gps vehicle tracker wholesale
2023-04-11pet gps tracker cat Vendor
2023-03-16Cantrack G05
2023-03-16gps vehicle tracker maker
2023-04-11Gps speed limiter price
2023-04-23G09L -6 inch Tail light tracker
2022-06-20P60L Personal gps tracker
2022-06-21Mini Sized GPS Tracker PCBA
2022-06-17G01 Smallest Personal Old People Mini GPS Tracker for Kids
2022-06-19G183 serials -JOBD GPS Tracker
2022-09-06GPS star search method.Hidden GPS Trackers Processing
2023-06-09Introduction to GPS system functions
2022-11-11Introduction to the principle of Beidou positioning by positioning manufacturers.gps tracker for tra
2023-06-20GPS positioning principle
2022-08-13Main Errors in GPS Positioning and Their Elimination Algorithm
2022-12-10Schematic diagram of GPS satellite navigation system
2022-12-29Application of GPS Positioning Technology in Network Security
2022-11-25Overview of GPS Vehicle System.portable gps tracker price
2023-08-11GPS functions.Cantrack Login
2023-09-04GPS satellite device settings.gps tracker no monthly fee wholesaler
2023-08-15What are the different types of car GPS?
2023-06-15GPS DOP and Active Satellites (GSA)
2022-09-28AGPS and GPS technical principles
2022-10-14GPS module with AGPS function
2022-10-12The purpose and prospect of the GPS vehicle management system.rastreadores gps wholesaler
2023-03-15