the simplest fashion might be to point a Pi camera at the fault lights and use a visual check (you can also program in a recognition program that will identify the state of each light).bugsy_malone 666 wrote:Ok so I by trade I am an M&E engineer, I perform light maintenance around our site and work for the company who operate the site. In our buildings we have several old Sauter BMS system, which are a light greenish grey steel box install which have isolators and lights for each of the pieces of equipment to say if its running or if there is a fault.
In one building with have a persist problem with the boilers, where by through some random fault, at will the pilot light will go out causing the boiler to trip out. There are 3 boilers and in the winter you need all 3, so if one trips out 2 isnt enough to make the building warm. If you relight the pilot early employees dont notice the temperature difference, but its knowing thats happened is the problem.
So I thought what would be useful is an early warning system as we have had a few random faults which would cause less problems if acted on when the trip out light comes on rather than feeling the temperature drop or other problems. I thought this is where a Pi would fit the bill!
so I did some looking and worked out there are a total of 36 lights on the panel indicating if things are or aren't working, the lights are 6v 300ma(I think last time I replaced some they were anyway) so thought theres a powered source, but what would be the best way to monitor all these points? I figured maybe a bank of relays, but that seems like a rather large solution, so wondered what sort of thing could be built to make it any smaller?
The idea then is that the Pi would then send a text message some how to me, so I know first thing in the morning or before hand to go and look at the equipment and get it running to create seamless running to the rest of the staff. Potentially if there is WiFi range I could get it to email me so when I sit down first thing in the morning I'd know what the problem was and then go fix it, but a text seems better (I know its also possible to send SMS through the web so could be done that way)
So I have ideas on how it could be done, but I am looking at the fact there are not enough GPIO pins and I am still a noob when it comes to doing this sort of stuff as I havent had acres of time to understand its workings, I'm open to suggestions and any help would be greatly appreciated for this project.
I doubt the tranilamps will consume enough current to reliably trigger an induction-clamp type detector - if I've got the style of lamp right, they probably only take a watt or two each, which is a negligible current at 240V.bugsy_malone 666 wrote: The system where we have more issues run on 'tranilamps', I had to laugh at the name but basically 240v input and a transformer in the lamp holder to bring it down to the 6v of the lamp. With the I figured you could actually use an induction clamp on each of the lamps supply cables would probably work in a non interfering way.
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