MartinLe
Civil/Environmental
- Oct 12, 2012
- 394
We need to build a system that detects if a dumpster is standing at it'S place (so the conveyor belt knows when to fill it and when not).
Classical induction sensors have a range of 20-30mm, we are not sure the truck driver will always position the dumpsters that close to anything. A positioning system is there (steel rails in ground) but not exact enough.
Installing a sensor in the concrete platform the containers will stand on introduces new headaches so i thought about sensor that are made to be installed on/in the ground and arrived at an inuction loop, as found in trafic control. The loop wil be placed in concrete, with (some) rebar underneath. We are favoring a system where a prepared plasitc pipe with the cable inside is pured into the concrete. I've reached out to suppliers and am waiting for a reply, so far no one has experience with this specific application. Hence my questions:
will it work? the dumpster floor will be far closer than a car, but also have far less mass - basically a few mm of metal. Is this enough?
For signal, I want (after configuration) a binary signal, nothing more (traffic control systems seem to be really competent up to identifying passing cars. Not needed by me!).
What else should I think of?
Classical induction sensors have a range of 20-30mm, we are not sure the truck driver will always position the dumpsters that close to anything. A positioning system is there (steel rails in ground) but not exact enough.
Installing a sensor in the concrete platform the containers will stand on introduces new headaches so i thought about sensor that are made to be installed on/in the ground and arrived at an inuction loop, as found in trafic control. The loop wil be placed in concrete, with (some) rebar underneath. We are favoring a system where a prepared plasitc pipe with the cable inside is pured into the concrete. I've reached out to suppliers and am waiting for a reply, so far no one has experience with this specific application. Hence my questions:
will it work? the dumpster floor will be far closer than a car, but also have far less mass - basically a few mm of metal. Is this enough?
For signal, I want (after configuration) a binary signal, nothing more (traffic control systems seem to be really competent up to identifying passing cars. Not needed by me!).
What else should I think of?