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Re: [core] RSSI in SenML

Carsten Bormann <cabo@tzi.org> Wed, 22 March 2017 18:52 UTC

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From: Carsten Bormann <cabo@tzi.org>
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Date: Wed, 22 Mar 2017 19:52:14 +0100
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To: Cullen Jennings <fluffy@iii.ca>
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Subject: Re: [core] RSSI in SenML
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> On 22 Mar 2017, at 19:47, Cullen Jennings <fluffy@iii.ca> wrote:
> 
> 
> I got a request to add RSSI to the table in 12.1 of  of SenML 
> 
> Symbol: RSSI 
> 
> Description: Received signal strength indication
> 
> Type: float 

RSSI is a quantity (an ill defined one).

Table 12.1 is about units.

Is there a unit that RSSI tends to use?

(For certain Cisco devices, that would be “percent”.
Other devices try to express their signal strength indications in dBm (typically a negative value approximately from -30 to -120).
But I don’t think there is any industry-wide way to do this.)

Grüße, Carsten

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