The working Principle of the GPS

Why it is important to know working principles of GPS

The manufacture of any product is indispensable for the support of the original technology, especially in the era with advanced technology, most of our products make full use of the innovative technology.

If our work and products are related to GPS, then it is necessary to understand the working principle of GPS.

For example, GPS TRACKER is a product based on GPS technology. Without the invention of GPS, GPS tracker cannot exsit.

So It is essential to understand the working Principle of the GPS, which will help us use the GPS technology to manufacturer the related products.

In this article, we will introduce the Principle of the GPS to you. If you are interested in this topic, this may be a useful reference for you.And you will also know a little: what is the GPS;GPS receiver working principle;GPS tracker working principle.

What is GPS ?

GPS is the abbreviation of Global Positioning System, which is a satellite navigation system, which is about 20,000km away from the Earth. It can provide us with location and time information. It can work 24 hours a day under any conditions.
A complete GPS requires at least 24 satellites. As technology develop, more than 33 satellites work together in the system of GPS

Now we can use GPS in the navigation of airplanes, cars and trucks,GPS tracker that is a terminal device based on GPS positioning technology.

The US Department of Defense (USDOD) initially only put these satellites into orbit for military use, such as controlling missile launches, until the 1980s, they were made available for civilian use. Since then,we can see that various applications of GPS appeared in our vision,for example GPS tracker, navigator.

Now anyone with a GPS device, be it a SatNav, mobile phone or handheld GPS unit, can receive the radio signals that the satellites broadcast, which greatly facilitates our lives.

gps system

What is the working Principle of the GPS ?

The system of GPS consists of three main parts, including the GPS satellites, the control system, and the control system.

The satellites have covered virtually every corner of the earth.No matter where you are,at least four GPS satellites can be visible at any time.

Everyone regularly transmits information about their location and real-time. These signals that are traveling at the speed of light are intercepted by the GPS receiver, and the GPS receiver calculates the distance of each satellite from us based on the length of time the information arrives.

What a GPS receiver does is locate the four or more satellites and calculate the distance between each one of them. Using this information the GPS tracking system in our car or other devices finds out its current location. The information is presented as maps, latitude And longitude specification, etc.

Once you have information about the distance between you and the three satellites, the GPS receiver can use a method called trilateration to determine your position. It is easy to understand this for the people who have learned math.

the working principle of GPS

From this, we can know that the more satellites above the horizon, the more accurately your device with GPS technology will determine your location. That is the reason why many countries need to deploy many satellites for their map.

What are the disadvantages of GPS ？

Even though GPS technology brings us greater convenience, it still has some limitations.

GPS satellite signals are too weak when compared to phone signals, so it doesn’t work as well indoors, underwater, under trees, etc.
The highest accuracy requires line-of-sight from the receiver to the satellite, this is why GPS doesn’t work very well in an urban environment.

How to solve the problem of weak GPS satellite signals

As we use GPS technology more and more in our daily lives, many derivative technologies have been born.

Now we can solve this problem of weak GPS satellite signals very well , we can install the GPS receiver where the GPS signal is weak.

GPS receiver can enhance the ability to receive GPS signals. So It can capture the very weak GPS signals.

GPS receiver working principle

The GPS receiver working principle you can reffer to this article:

How GPS Receivers Work

There are many different types of GPS receivers. GPS trackers can be also seen as GPS receivers.

The application of GPS technology

GPS technology can be applied to many fields, such as car navigation, military weapons and security.

To learn more about the application of GPS technology, you can read the article: https://grindgis.com/gps/50-uses-or-applications-of-gps

You will know 50 Uses or Applications of GPS technology

GPS tracker is also the one of application of GPS technology ,which is a combination of software technology and GPS technology.

What is the GPS TRACKER working principle

GPS tracker is hardware device can be seen as GPS receiver. And GPS tracker can log the location data,then send the data to the server.The process of GPS tracker work,and you can look at the Working principle diagram above.

Write in the End

In this article, we have simply introduced the related principles of GPS work, but the technology involved is very complex. As a non-professional, we only need to understand the simple working principle of GPS. If you need to study GPS more deeply, you can check:

https://www.mouser.be/pdfdocs/GPS_facts_principles_of_GPS.pdf