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stinkwheel |
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stinkwheel Bovine Proctologist
Joined: 12 Jul 2004 Karma :
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Posted: 18:27 - 24 Nov 2021 Post subject: Looking for temperature monitor/alarms |
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BCF being the font of all knowledge and since people in the industry I've asked are only interested in selling me hugely expensive wireless data loggers systems which aren't suitable for this application anyway.
I'm looking for a max/min temperature alarm. So if the temperature in a zone exceeds preset maximum or minimum levels, it sets off an audible alarm.
That bit's easy. The tricky bit is it should be a "latching" alarm. Once the temperature zone has been exceeded, the alarm should remain active until reset even if the temperature returns to normal parameters.
So for example, if a fridge goes over temperature overnight then returns to normal, the alarm will still be sounding in the morning.
I have a total of 24 temperature zones to monitor, some refrigerated, some ambient. 13 of them are mobile and so are not within range of a wireless network which rules out networked data loggers. All are equipped with "blind" data loggers but I need to know quickly if the temperature range has been exceeded so the goods in that area can be quarantined and the data loggers downloaded to see how big a problem we have.
Currently, to comply with regulations, I need to either have an alarm or someone has to go round every morning recording the readings on a max/min thermometer at each location. An alarm would be better! ____________________ “Rule one: Always stick around for one more drink. That's when things happen. That's when you find out everything you want to know.”
I did the 2010 Round Britain Rally on my 350 Bullet. 89 landmarks, 3 months, 9,500 miles. |
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WD Forte |
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WD Forte World Chat Champion
Joined: 17 Jun 2010 Karma :
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Posted: 19:07 - 24 Nov 2021 Post subject: |
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Sounds like a good micro controller project.
There are tons of various ones about and don't keep up to date on them all, but as I have one on the shelf
Something like the Arduino Mega with its 54 digital and 16 analog
I/O pins comes to mind.
In its simplest form
I reckon the code would be fairly straight forward non time sensitive loops constantly (hopefully) doing little until thresholds are exceeded or not met then responding to that with a
Of course if you want more bells and whistles you can upgrade to add all manner of geekery ____________________ bikers smell of wee |
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GettinBetter |
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GettinBetter Crazy Courier
Joined: 20 Jun 2019 Karma :
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The Artist |
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The Artist Super Spammer
Joined: 06 Jan 2008 Karma :
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Posted: 19:58 - 24 Nov 2021 Post subject: |
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stinkwheel |
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stinkwheel Bovine Proctologist
Joined: 12 Jul 2004 Karma :
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Posted: 20:03 - 24 Nov 2021 Post subject: |
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It would do it, assuming I had time to make 24 arduino based temperature monitors.
I'm thinking more along the lines of throw money at the problem until a box of stuff arrives in the post that makes it goes away. ____________________ “Rule one: Always stick around for one more drink. That's when things happen. That's when you find out everything you want to know.”
I did the 2010 Round Britain Rally on my 350 Bullet. 89 landmarks, 3 months, 9,500 miles. |
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GettinBetter |
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GettinBetter Crazy Courier
Joined: 20 Jun 2019 Karma :
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WD Forte |
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WD Forte World Chat Champion
Joined: 17 Jun 2010 Karma :
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stinkwheel |
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stinkwheel Bovine Proctologist
Joined: 12 Jul 2004 Karma :
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WD Forte |
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WD Forte World Chat Champion
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Posted: 01:57 - 25 Nov 2021 Post subject: |
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Tarmacsurfer |
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Tarmacsurfer World Chat Champion
Joined: 29 Jun 2004 Karma :
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stinkwheel |
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stinkwheel Bovine Proctologist
Joined: 12 Jul 2004 Karma :
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Old Thread Alert!
The last post was made 2 years, 153 days ago. Instead of replying here, would creating a new thread be more useful? |
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