How to detect the direction indoors?

wangerxian

How to detect the direction indoors? [Copy link]

I am planning to build an indoor positioning car, but there is a problem with the car's orientation. I want to use MPU6050 to detect the car's six axes and ultimately realize orientation detection.

I also considered using a magnetic sensor (compass), but the magnetic sensor needs to be drawn first, which is quite troublesome, so it is chosen with a lower priority than MPU6050.

Does anyone have any other good suggestions regarding interior orientation?

Why do we need to know the direction? Because knowing the direction makes it much easier for the car to reach the specified location. Without the direction, relying solely on UWB positioning requires more algorithms, and the path will be longer.

chunyang

It is not feasible. It is not feasible to rely on geomagnetism either, because there are too many ferromagnetic materials in regular rooms, which will cause uncorrectable magnetic interference to the geomagnetic sensor. Just use the positioning algorithm honestly, don't think it's troublesome, it's already the simplest.

秦天qintian0303

Why do we need to consider the orientation? Doesn’t the positioning car automatically adjust its direction after receiving the new address?

wangerxian

Qintianqintian0303 posted on 2023-12-15 16:40 Why do we need to consider the orientation? Doesn’t the positioning car automatically adjust its direction after receiving the new address?

The car can not only move forward, but also move backward and turn, which is too troublesome to link with the positioning system.

wangerxian

chunyang posted on 2023-12-15 16:11 It is not feasible, and relying on geomagnetism is not feasible either, because there are too many ferromagnetic materials in conventional rooms, which will cause uncorrectable magnetic interference to the geomagnetic sensor. Honest and practical positioning...

It also feels cumbersome, there is too much data to process.

dcexpert

Add a few wireless beacons

wangerxian

Add a few wireless beacons

Currently, there are three beacons, which should be enough for 40 square meters.

dcexpert

wangerxian posted on 2023-12-17 19:08 Currently, there are three beacons, and 40 square meters should be enough. I am just afraid that objects will block the drift

There is too much interference indoors, so we need to do a good job of the algorithm

wangerxian

dcexpert posted on 2023-12-18 12:11 There is too much interference indoors, so we need to do a good job of the algorithm

Yes, my car is currently heading a little bit off.

chunyang

wangerxian posted on 2023-12-15 17:52 It feels very troublesome, there is too much data to process.

As mentioned in the previous post, the positioning algorithm is already relatively simple.

wangerxian

chunyang posted on 2023-12-19 14:26 As mentioned in the previous post, the positioning algorithm is already relatively simple.

Yes, it is indeed relatively simple to determine the orientation.