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Thread: MEP-802/803/831 Generator Control & Parameter Monitor by WIFI Demo

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    Default MEP-802/803/831 Generator Control & Parameter Monitor by WIFI Demo

    Since my venture into developing the replacement MEP831A Governor Controllers was a success I thought I'd revisit MEP remote start/stop with parameter monitoring.
    About 2 years ago I developed a similar capability. However the control components were a closed design, didn't use WIFI and was not readily producible.

    So.. Here is the 2018 version of a similar capability except all control is via WIFI. In this demo I'm using an old cell phone with just a browser. No "app".

    Prototype starting a MEP-802A via WIFI. Controls all phases of startup such as PreHeat, Priming, Starting, Running, Closing the Contactor.
    Sequencing and parameter reporting are accomplished with a small WIFI microcontroller that hosts the web pages and acts as a WIFI access point.
    Live data streaming of generator and engine operating parameters.
    - AC Voltage
    - AC Frequency
    - % Load
    - Coolant Temp
    - Fuel Level
    - Oil Pressure
    - Battery Voltage
    - Air Temperature (Not functional yet. Awaiting sensor delivery)
    Includes remote shutdown functionality also. Opening the contactor, Cooling down and Shutdown of the genset.

    Genset can also be started and stopped manually.
    Wiring from the controller connects to the meters and switch's in the control cube. Only 1 generator wire needs to be cut and spliced into. All other connections "piggyback" onto existing terminals of the meters and switch's.

    WIFI connection is direct from the cell phone to generator. No router used. Password protected connection for security. 200'+ range.
    Generator can be controlled by any device with WIFI and a web browser such as a Laptop, Cell Phone, Tablet, etc. No "app" needed.

    https://www.youtube.com/embed/s3r3_PmTPQc

    Will be continuing to test and improve over the coming weeks and possibly months.
    If there is enough interest I may persue producing the controllers once the design is solid and proven.
    For now I'm be targeting MEP-802A, MEP-803A & MEP-831A since I have an 802 and 831's to integrate with.
    The MEP-831A will have less parameter monitoring due to it's lack of engine Temp & Oil pressure sensors.

    Thoughts?
    Last edited by kloppk; 06-14-2018 at 17:36.
    MEP-831A Governor Controller Replacements for the SLC100, 2990-01-477-1371, 98-19539. https://www.steelsoldiers.com/showth...90#post2233190
    MEP-802A/MEP-803A Remote Start Kits
    https://www.steelsoldiers.com/showth...92#post2233192
    MEP-831A Battery Charger Repair & Repair Kits https://www.steelsoldiers.com/showth...83#post2231683
    MEP-831A Remote Start / Governor Controller Kits https://www.steelsoldiers.com/showth...49#post2245549

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  3. #2
    Sergeant
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    Thanks for sharing this. Looks great. Putting aside the wifi part for a moment, is the start controller and component that gathers the generator metrics something off the shelf?

    I've always wondered about connecting something like the DynaGen TG410 and then finding a RS-485 to IP solution. This looks similar to that but perhaps you built the whole thing from the ground up.

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    gator,

    I built the whole thing from the ground up. No off the shelf assemblies, just individual components.
    It's not pretty since it's a first pass at a prototype to prove out the concept. Hence no pictures of it.
    Designed the sensors to gather all the parametric data and interfaced them to the micro controller.
    The brain of the setup is a postage stamp sized micro controller WIFI web server part.
    The whole thing (minus the relays) is about 2" x 3"
    Last edited by kloppk; 06-14-2018 at 20:21.
    MEP-831A Governor Controller Replacements for the SLC100, 2990-01-477-1371, 98-19539. https://www.steelsoldiers.com/showth...90#post2233190
    MEP-802A/MEP-803A Remote Start Kits
    https://www.steelsoldiers.com/showth...92#post2233192
    MEP-831A Battery Charger Repair & Repair Kits https://www.steelsoldiers.com/showth...83#post2231683
    MEP-831A Remote Start / Governor Controller Kits https://www.steelsoldiers.com/showth...49#post2245549

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    69birdman (06-15-2018), dav5 (03-23-2019), Light in the Dark (06-15-2018)

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    Sergeant
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    Are you thinking of developing an automated frequency controller to maintain 60hz?

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    Good work.

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    Awesome! I think once you get it dialed in and can offer it at a good price, you should have lots of interest in it. Especially if it’s anything like your 831 controllers. Great work.
    MEP-002A
    MEP-831A

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    Quote Originally Posted by devilphrog View Post
    Are you thinking of developing an automated frequency controller to maintain 60hz?
    Not at the moment. I know a couple of others here had been working on a solution for that.
    MEP-831A Governor Controller Replacements for the SLC100, 2990-01-477-1371, 98-19539. https://www.steelsoldiers.com/showth...90#post2233190
    MEP-802A/MEP-803A Remote Start Kits
    https://www.steelsoldiers.com/showth...92#post2233192
    MEP-831A Battery Charger Repair & Repair Kits https://www.steelsoldiers.com/showth...83#post2231683
    MEP-831A Remote Start / Governor Controller Kits https://www.steelsoldiers.com/showth...49#post2245549

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    maniatopoulosg (07-21-2018), Ray70 (06-15-2018)

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    Excellent work so far... keep us posted!

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    Looks like a great add on for some folks. I like things as simple as humanly possible, so its not for me... but I can definitely see the appeal!

  14. #10
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    Looks awesome. If you need any beta testers let me know or if you bring it to market...

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