10th March 2011, 07:27 PM
Automated Home Sr Member
Gas usage monitoring
I'm very new to Idratek and haven't even fully installed my initial setup yet . .
But I'm wondering . . . by using the pulse counting capabilities of modules such as the DRB002, how (and is it even possible) could I go about using a photo-reflector such as this;
to count the number of revolutions of the final dial on my gas meter that has a reflective silvered section on the thousands of a cubic meter number wheel . . .
I see this chap;
has done something similar but I don't want to write my own application to handle things . . . I want something failry plug and play that can be fed into the pulse counting capability of an Idratek module . . .
Anyone any thoughts or experience of this?
10th March 2011, 10:17 PM
Automated Home Lurker
Don't know where you live, but in Holland they sell this device :
It can measure gas, water and electricity. It comes with software but also with an API so you can access it yourself. Currently it's using Bluetooth for communication protocol. They told me an IP version would be available soon, once it's available I will buy it to integrate it in my application.
You can contact them to see if you meter is compatible with their product.
Note that I'm not affiliated at all with the company, and I have not used the product myself.
11th March 2011, 12:58 AM
11th March 2011, 02:42 PM
Automated Home Jr Member
on UKHA_D recently there was a discussion on CurrentCost and I am sure when I looked at their web-page at the time there was wireless Gas meter reading device in the Envir range but now it has gone back to promising it. The current cost can be connected to a PC and whilst I haven't looked into it I believe there are a number of open source programs to process the data and produce reports/graphs.
14th March 2011, 05:10 PM
Automated Home Sr Member
Thanks Karam -
Originally Posted by Karam
Through a bit of browsing, I've spotted this chap; http://phk.freebsd.dk/Gasdims/n . . . Who uses an OPTEK OPB704 (which annoyingly you can buy for a couple of quid from CPC but have to swallow £5.95 postage for it to be 'handled'!) . . .
This looks a nice neat unit . . . as he's proven it's applicablity to this practice, I might order one and give it a go . . .
My Gas meter is boxed in within Node 0 so it's nice and Dark (Currently have a Webcam facing it to take snapshots every 1/4 day) so this shouldn't be an issue.
This might work but I'm keen to keep as much as possible within Cortex / Idratek . . . I figure a Photo-resitor type approach should be fairly cheap in that the pulse counting can be handled (and therefore the cost included) within an existing Idratek module.
Originally Posted by ludditeal
14th March 2011, 08:09 PM
Automated Home Guru
Try RS online for the OPTEK OPB704
Higher unit costs but free postage.