What are relative positioning technologies?

Relative positioning technologies include radio ranging, sonar, laser ranging, cameras, inertial navigation, satellite navigation, indoor positioning, ultrasonic, infrared, electromagnetic waves, Bluetooth positioning, Wi-Fi positioning, ultrasonic ranging, infrared Ranging, laser ranging, camera visual positioning, RSSI-based positioning, TOA-based positioning, TDOA-based positioning, AOA-based positioning, etc. Detailed introduction: 1. Radio ranging: Calculate the distance by measuring the time difference of radio waves from the transmitting point to the receiving point; 2. Sonar technology, etc.

Operating system for this tutorial: Windows 10 system, Dell G3 computer.

Relative positioning technology refers to the technology of determining the position of an object by measuring the relative position when the absolute position is unknown. Common relative positioning techniques include:

1. Radio ranging: Calculate distance by measuring the time difference between radio waves from the transmitting point to the receiving point.

2. Sonar: Calculate the distance of an object by sending sound waves and receiving the reflected sound waves back.

3. Laser ranging: Calculate distance by measuring the time difference between laser emission point and receiving point.

4. Camera: Calculate the position of the object by taking an image of the object and analyzing the feature points in the image.

5. Inertial navigation: Calculate the position of an object by measuring its acceleration and angular velocity.

6. Satellite navigation: Calculate the position of objects by receiving satellite signals.

7. Indoor positioning: Calculate the location of objects by measuring the strength of indoor wireless signals.

8. Ultrasound: Calculate the distance of an object by sending ultrasonic waves and receiving the reflected ultrasonic waves.

9. Infrared: Calculate the distance of an object by sending infrared rays and receiving the reflected infrared rays back.

10. Electromagnetic waves: Calculate the distance of an object by sending electromagnetic waves and receiving the reflected electromagnetic waves.

11. Bluetooth positioning: Calculate the position of an object by measuring the strength and reception time of the Bluetooth signal.

12. Wi-Fi Positioning: Calculate the location of an object by measuring the strength and reception time of the Wi-Fi signal.

13. Ultrasonic ranging: Calculate the distance of an object by sending ultrasonic waves and receiving the reflected ultrasonic waves.

14. Infrared ranging: Calculate the distance of an object by sending infrared rays and receiving the reflected infrared rays.

15. Laser ranging: Calculate distance by measuring the time difference between laser emission point and receiving point.

16. Camera visual positioning: Calculate the position of the object by taking an image of the object and analyzing the feature points in the image.

17. RSSI-based positioning: Calculate the position of an object by measuring the strength of signals from different base stations.

18. TOA-based positioning: Calculate the position of an object by measuring the signal arrival time.

19. Positioning based on TDOA: Calculate the position of an object by measuring the difference in signal arrival times.

20. AOA-based positioning: Calculate the position of the object by measuring the angle of arrival of the signal.

The above are common relative positioning technologies. Different technologies have their own characteristics and applicable scenarios. You can choose the appropriate technology for positioning according to actual needs.

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