Object Anchor with different models connnect to their own IOT data

EE NTU 96

I want to specify different models for different entity objects through object anchors. Are there any technical documents that I can refer to?
In addition, I also want to ask how to display the IOT data corresponding to different models through the object anchor?

Rob Caplan - MSFT 5,537 Reputation points Microsoft Employee

2022-08-20T05:12:05.337+00:00

Can you explain more clearly what you're trying to do and what you need help with? This doesn't sound like object anchors is the right technology.

Azure Object Anchors (AOA) isn't a display technology. AOA allows you to recognize 3d objects in space and get its location, which you can then use as needed: for pathing, to display a model or a billboard, to report elsewhere, etc. You would need a pre-processed 3d model of the object you want to recognize. Once recognized, you could map it to whatever entities or IoT data you'd like. That mapping between your AOA pose and the IoT data and display would be application logic outside of the scope of AOA itself.

You can find developer documentation for AOA at https://learn.microsoft.com/en-us/azure/object-anchors/
EE NTU 96 Reputation points

2022-08-20T06:04:46.297+00:00

For example, now we make an electric fan Object Anchor, but we want to show IOT data(like showcase--Connect IoT data to HoloLens 2 with Azure Digital Twins and Unity | CON064) from the electric fan when we scan the entity object(electric fan), what should we do?

Accepted answer

Sander van de Velde | MVP 33,136 Reputation points MVP

2022-08-21T19:52:48.717+00:00
Hello @EE NTU ,

There are two streams of data in this solution:

A device (with a unique DeviceID) emits telemetry to an IoT Hub (where the device is registered) and this telemetry flows through Azure Digital Twins and is outputted to some EventHub

A hololens app is able to recognize devices and is capable of receiving and displaying the event hub data for one or more devices in the display

I agree with @Rob Caplan - MSFT , AOA is for the anchor logic only, you need to connect to the ADT service next to it (see this blog post about an extended hands-on lab).

So you need some extra 'glue' to send telemetry from the event hub to the hololens.

This could be eg. Websocket technology like Azure SignalR Service (which I recommend) or some MQTT service or a public accessible EventHub.
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EE NTU 96 Reputation points

2022-08-22T03:23:01.117+00:00

I learned a lot, we will do more research and testing, thank you~~

Sander van de Velde | MVP 33,136 Reputation points MVP

2022-08-22T07:52:51.513+00:00

Hello @EE NTU ,

you are welcome. If you have any questions, please put them here on Q&A.

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Object Anchor with different models connnect to their own IOT data

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