image recognition: https://code.google.com/p/find-object/wiki/FindObjectsWithWebcam
I have an idea in mind to monitor anything via cacti: step 1) image recognition of when a dial gauge/needle reaches a certain position step 2) append value onto the end of a text file reachable by http step 3) use a cacti data acquisition script/input method with curl to grab that current value and store it in a RRD file step 4) chart it I've seen this done with weather monitoring setups at a university research level, it was remarkably accurate. On Thu, Oct 9, 2014 at 3:07 PM, Chuck McCown via Af <[email protected]> wrote: > Now you're talking. You can even wire it up to an ethernet port. When > closed it loops back on itself. Easy to monitor. > > -----Original Message----- From: Gino Villarini via Af > Sent: Thursday, October 09, 2014 3:57 PM > To: [email protected] > Subject: Re: [AFMUG] Monitoring Diesel fuel level > > Float switch > > > > Gino A. Villarini > President > Aeronet Wireless Broadband Corp. > www.aeronetpr.com > @aeronetpr > > > > > > > On 10/9/14, 4:12 PM, "Chuck McCown via Af" <[email protected]> wrote: > > I have used an ultrasonic sensor in a water tank. >> >> I have put cameras on tank indicators. >> >> There are pressure transducers that work down in the inches of water >> pressures. Motorola used to make them. >> >> You could put a strain gauge under one end and weigh the tank. >> >> A float on a stick that comes vertically through a plug is what old >> airplanes use. Have a web cam pointed at it. Mark it as you fill it. >> >> -----Original Message----- >> From: Nate Burke via Af >> Sent: Thursday, October 09, 2014 2:08 PM >> To: Animal Farm >> Subject: [AFMUG] Monitoring Diesel fuel level >> >> Anybody had a Diesel tank level monitor that they like? Preferably >> something that could Wire into a Site Monitor for monitoring. Needing to >> monitor 2 Generator tanks. one is about 6" deep, 20Gallon. The other >> is about 24" deep, 50 gallon. >> >> The 6" Tank is Steel and has a cheap float guage. Something that could >> replace that would be perfect. >> >> The 24" tank is plastic, and has no gauge from what I can tell. >> >> Nate >> >> >
