I am assisting a company who is bringing an atmospheric water generator, - read: air to water machine - industrial strength dehumidifier, to market. This puppy will produce 1,700 - 2,000 gallons of fresh water a day in good humidity, which we have here in Austin, Texas. Imagine 20 of these guys in a circle pumping 40,000 gallons of water into a water tank for distribution. The power to run the unit is cheaper that what it would cost to run a generator to pump from a well.
The U.S. military will suck up every bit of the units they can produce for the foreseeable future. Once production is ramped up, commercial sales will begin. in the meantime someone in uniform wants to know what how the machine will alter the surrounding humidity.
So I have set up 4 sensors around the machine and one mounted on the machine. Data is being sent up to Azure every 15 minutes. Client has access to website that charts the temp/humidity for the day. Later we will do some crunching of the numbers to see if there was much of a difference with the data coming from the weather station at the army base.
The unit used to sit where the dead grass is. It was moved off site for a FEMA conference in San Antonio recently and has not be place back between the sensors.
You can see the little white guys out there in the field.
Sensors and IOT is not my day job (.net enterprise developer/manager), so this was done on the cheap.
The housings are pvc with the units mounted on wood slats.
I am using ElectricImp hardware. They are cheap and come with a temp/humidity/pressure/light sensor for $30. They have Wi-Fi onboard, and the “tail” just plugs in. You program Imp via their website. Code is pushed to the Imp and you write sister code on their server. Data gets sent to their server where my code then sends it off to my WebAPI on Azure, which then gets pushed into Table Storage.
Keeping a MiFi device juiced up and on has been a challenge. Configuring the Imps with credentials is done through an app that literally send the data via light. Its pretty cool. But a pain to do when you need to change wifi devices.
I am done with wifi out in the field. I believe LoRaWAN will be a better solution for sensor to cloud coms.
I posted this because everyone likes looking at projects…I think.