Which Marvelmind indoor GPS kit should I buy for model ship tracking

Help & Support Robot Parts
1

Hi!

I am looking to buy Marvelmind indoor GPS kit for a commercial application in the UK.
I have a scaled ship model to track in a large indoor pool which can go up to 10m/s.

I would like to accurately track the model location and speed at 20Hz or faster.

I also plan to have multiple mobile beacons to have accurate heading of the ship as magnetometers are not always reliable.

What I am not sure about is which frequency to go for (915MHz or 433MHz) and NIA or IMU version.
I believe IMU version has higher update rate which will be beneficial.

Thank you so much in advance for your help!

2

Hello @sib1212 and welcome to RobotShop the forum!

For the UK it is recommended: 868MHz (SRD) or 433MHz (ISM)

And to choose the version/architecture I suggest checking this:

According to it, the IA (Inverse Architecture) is better when the update rate per mobile is important, so this might be the best option for your project:

3

Thank you very much for your timely response.
It is very helpful.

1 Like
4

There are several options for the mobile beacons on the boat:

  1. If the boat is not too noisy, we would recommend
    a) Either a (Super-Beacon + Omni-Microphone), if the Super-Beacon can be hidden inside the ship to prevent its exposure to water splashes with the microphones sticking out to receive ultrasound for positioning because the microphones are IP67-protected
    b) Or an Industrial-RX with Omni, if the beacons can be exposed to water splashes
    In both cases, the recommended architecture is IA: https://marvelmind.com/pics/architectures_comparison.pdf.

If the boat is noisy or NIA is preferred for whatever reasons, the recommended beacons are:
a) Super-Beacons, if they are not exposed to splashes
b) Industrial Super-Beacons-Plastic, if they are exposed to splashes

We used to have Super-Beacons-Outdoor that were also good for such tasks (https://youtu.be/5DGJeRrO3r4?si=-azXQjTHefC0JaIq, but they turned out to be a small-volume product and we don’t have in stock anymore.

BR,
Maxim

1 Like