source:truck tracking webfleet solutions release time:2023-11-16 Hits: Popular:realtime gps tracker online
The so-called GPS, also known as the Global Positioning System (GPS), is the world's first global satellite navigation system. As early as the 1970s, the United States began research and development. After nearly 20 years of research and development, it cost $20 billion and was finally fully completed in 1994.
The positioning principle of GPS is not difficult, it is actually the triangulation method. Simply put, it is to determine the position of the receiver by measuring the distance between the satellite and the receiver at different positions. Generally speaking, a receiver needs to be able to directly contact at least 4 GPS satellites at any time to accurately determine its position; If there are only three satellites, then it is impossible to determine the altitude; If there are only two, then the exact position cannot be calculated.
Due to limitations in working principles, there is also a lower limit for the number of satellites in the global satellite navigation system. Taking GPS in the United States as an example, at least 24 satellites need to operate normally in orbit to ensure that the vast majority of the Earth can "see" four GPS satellites at any time, thus achieving precise positioning.
According to different requirements and purposes, the global satellite navigation system may also have more than 24 satellites. For example, backup satellites or satellites in other orbits, etc
We are all very familiar with the use of global satellite navigation systems, and when we want to navigate or locate when we go out, we will use this system. It can be said that without navigation, our daily life would lose a lot of convenience.
Read recommendations:
Compared with traditional batteries, what are the advantages of 26650 lithium batteries?
Last article:Gps speed limiter.The Role of GPS
Next article:gps vehicle tracker.How to Implement Global Positioning System
Related Information
fleet gps trackers
2023-04-11gps vehicle tracker manufacturer
2023-04-23real-time gps tracking price
2023-04-23fleet gps trackers Processing
2023-04-23Special Looks GPS Tracker PCBA
2023-03-16fleet gps trackers sales
2023-04-23fleet gps tracking company
2023-04-23mini gps tracker distributors
2023-04-23Pet GPS Tracker supplier
2023-03-16Cantrack TK100
2023-04-23Mini Sized GPS Tracker PCBA
2022-06-17personal gps tracker Production
2022-09-06G900LM-4G Car GPS Tracker
2025-03-25VSL100 GPS Speed Limiter, Speed Governor
2022-06-19G200(L) -Magnet GPS Tracker
2022-06-20What is GPS?
2022-07-13GPS management system-efficient management of your vehicle
2023-02-16Several ways of GPS mobile phone positioning
2022-10-21GPS personal positioning
2022-12-15The following aspects mainly affect the performance of GPS antenna
2022-11-12GPS Locator
2022-10-08GPS components
2022-11-19The prototype of the third generation GPS system GPS Blokc III starts testing
2022-12-06China's Beidou GPS system
2022-10-26GPS signal is briefly introduced
2022-11-02GPS death phenomenon
2022-09-14Smartphone GPS, everywhere
2022-12-02The concept of static drift of the car GPS positioner and cause.plug & play Obd gps tracker manu
2023-03-25How to distinguish the GPS driving recorder and driving recorder?fleet tracking webfleet solutions
2023-03-21Comprehensive management of GPS satellite positioning and driver smart card for business and officia
2023-07-07