Apple iphone14 is equipped with Beidou navigation system. What are the advantages of Beidou vs GPS?

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summary

     Apple finally compromised , According to Zhongguancun Online News , Apple's new iPhone14 Beidou navigation chip will be built in for the first time . What are the reasons for Apple's move ？ And American GPS System comparison , What are the advantages of Beidou system ？

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Introduction to Beidou System

     Beidou navigation system is a satellite navigation system independently developed by China , total 35 Class satellite . Beidou's static positioning accuracy can reach millimeter level , Dynamic accuracy can reach centimeter level , The speed measurement accuracy is better than decimeter / Second level , Excellent service availability 99%.

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More economical

     In recent years, under the background of China's vigorous public relations of the chip industry , The price of Beidou chips has fallen again and again , The price of a single chip has fallen below 6 element , And GPS A single chip is about 15 Yuan comparison , Beidou chip has more advantages in terms of cost .

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Frequency band and anti-interference

     Beidou satellite adopts three frequency communication , be relative to GPS Satellite dual frequency communication , The positioning accuracy of Beidou satellite will be higher , And it has stronger dry resistance .

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Short message technology

     Short message technology is the first technology developed in China , Beidou navigation system is equipped with short message communication technology , Up to... Can be transmitted at a time 120 Information of Chinese characters , And it can realize two-way communication , This feature greatly expands the application scenario of Beidou system .

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Higher timing accuracy

     Beidou's timing accuracy is the best in the world , It can reach all over the world 20 nanosecond , The Asia Pacific region is even more accessible 10 nanosecond . because GPS The system is old and the upgrade is slow , Therefore, the timing accuracy is weaker than that of Beidou .

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Beidou satellite has great potential

     Apple's compromise is just the tip of the iceberg , Beidou satellite system is relative to GPS The advantages of the system are obvious , And rely on China, the world's largest market , The prospects for future development will be limitless .

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