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Friday 7 August 2020

How to use BeiDou navigation system on your phone

China has just announced the completion and launch of its BeiDou-3 Navigation Satellite System. But, how can we use it?

CGTN recently posted a video showing the differences between China's BeiDou system and other global navigation satellite systems.

Read more: How is China's BDS different from other global navigation networks?

And we received some questions, about how to actually use BeiDou for navigation. This video explains how the system works on your phone.

Before we get started, let's clear up a common misconception. A lot of people think if you want to use the BeiDou system, you need to download some sort of "BeiDou apps."

The truth is, you don't need to download any new app for using the system. If you find an app titled "BeiDou" in an app store, it's not official. Regular navigation apps, delivery apps or car-hailing apps are all able to use the positioning service of the BeiDou system.

Civil equipment like our phones, cannot choose which navigation system to use. It will automatically pick the system that has best signal at that time.

So maybe you're using the BeiDou system right now.

But not every smartphone supports BeiDou. Currently, most of the Android phones can use the BeiDou system. But if you are an iPhone user, you are not able to use it because chips carried by the Apple product line do not support the system. To check, you can take a look at the tech specs of your phone.

GPS testing apps can show the number of satellites in your area and their signal strength. /Screenshot via GPS Test

Another way to find out whether your phone supports BeiDou is through GPS testing apps. Your phone can use BeiDou's services if the app can detect BeiDou's satellites.

There are also people asking whether BeiDou can be used outside China. You can do so just like we can use GPS services in China.

The difference is that BeiDou provides better accuracy in China and the Asia-Pacific region, at five meters, because of its unique layout. The accuracy in other areas is about 10 meters.

Cameraman: Yang Yang Video editor: Guo Meiping Cover image: Jia Jieqiong

How is China's BDS different from other global navigation networks?

https://youtu.be/NXdFg1PRKnQ

China has completed its BeiDou Navigation Satellite System, or BDS, becoming the fourth country in the world with a global navigation network, the other three being GPS of the U.S., GLONASS of Russia and Galileo of Europe.

As the name suggests, the global navigation satellite system provides navigation and location services on a 24-hour basis. From what we know so far, building a sound satellite system costs a bundle. Besides, the other systems are already well-established. So, what makes China's BDS stand out among its competitors?

Firstly, the other systems have 24 satellites in medium earth orbit (MEO). In addition to the 24 satellites, the BDS constellation also has three satellites in geostationary earth orbit (GEO) and three in inclined geosynchronous orbit (IGSO). What's special about the extra six satellites is that they have a relatively fixed range of activity.

This layout can enhance BDS' accuracy in China and the Asia-Pacific region to five meters, in comparison with a 10-meter accuracy in other areas.

Secondly, BDS has a trump card – the short message service. It is a function that allows users to have a two-way communication.

In areas not covered by cellular or communication signals, BDS can make the short message service available in uninhabited areas, such as deserts, forests, and mountainous or polar regions.

With this service, users in distress can inform the rescue team about their location and condition.

As the most populated country in the world, it's important for China to have its own global navigation satellite system to meet the needs of the country's socio-economic development.

In fact, the BDS is also good business. According to the White Paper on the Development of China's Satellite Navigation and Location Services Industry (2020), the country's satellite industry has maintained a 20-percent annual growth since 2012. BDS contributes about 80 percent of it.

The system has also generated tens of billions of dollars, countless high-paying jobs, and stimulated economic growth via big contracts in commercial industries.

And with improvements in functions, it will have much more to offer in the future.

Scriptwriter: Pan Zhaoyi Producer: Guo Meiping Cameraman: Fu Gaoliang Video editor: Zhao Yuxiang Cover image: Yin Yating

Related:

A rewind of China's BeiDou Navigation Satellite System deployment https://youtu.be/CM1-7UcNAfE

https://youtu.be/LxMtasUnYY8

Analysis: How is China's BeiDou satellite navigation doing?

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