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

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kloppk

Active member
Steel Soldiers Supporter
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Location
Massachusetts
A few customers have requested the following feature and it is easily accomplished by purchasing a low cost WiFi switch relay.

Remote Start/Stop from anywhere via the internet
If you wish to remotely start and stop the generator using my controller from anywhere via the internet
you can purchase a Sonoff 4CH Pro R2 Advanced Smart Switch or a similar product. They are available on Amazon and eBay.
Any WiFi remote switch system that can connect to the internet via your homes router and has non-powered relay contacts.
Simply configure the Sonoff and connect one of it's relay channels to my controllers 2-wire interface.
Done.


If using this method you will only be able to Start & Stop the generator via the internet. You will NOT be able to view the
real time parameters over the internet. That can only be done via WiFi when you are within ~300 feet of the generator.
 

mlaxton

Member
42
7
8
Location
Florida
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.


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?
Question, I am interested in this product strictly for monitoring the health of the gen set from inside the house. Is it live data or does it update every couple mins? Also does this alter the way the gen set works manually at all?
 
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