Greenhouse automation and control three phase motors

Projects General Guidance
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Hello, I have a greenhouse and I want to make a new electronic system because the old one doesn’t work (I would like to remove the things that aren’t in use of the old installation). The greenhouse is 100 meters long and 80 meters wide with 10 tunnels, 5 of the tunnels have a three-phase motor connected to a gearbox to open and close the “windows” (better seen in the photos), in the sides there is one motor connected to a gearbox that rolls the plastic in an axis. The idea is to be able to control remotely all the electrical appliances such as the motors (and maybe in the future electro valves) and to receive data from the sensors (temperature, ph, moisture, humidity, airspeed, air direction, drops of water (indicator of rain) and maybe a pluviometer) , in addition we would like to have a program which could handle it by itself, for example if the windspeed is too high, the windows must close. A tactile screen could be also a good Idea to manage it from the inside of the greenhouse displaying all the information and with options to actuate the motors.

For doing this I thought about using Arduino, and maybe a raspberry with internet connexion to send the data. I need help with all the installation from how to run the motors to the installation of the sensors, it is a really large project, but I think that with your help I might be able to do it :slight_smile: .

(The forum doesn't let me to upload more than one image so i'll put the links to them if you can't open the links use: left click open in a new window )

Tunnel Motor:
Gearbox of the tunnel motor:

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Three-phase motor we use 380-450 V 60 hz 0,79A 1690 rpm:

Pannel below the motor which can move it forward or backwards:

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Pannel below the motor but with a different breaker.

Photo to understand how it moves.

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Sidewall motor:

Side motor, we use 390-460 60hz 1670 hz 0,39 A:

Motor connected to the axis.

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Old central console:

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You need to split a large project into lots of small ones.
Draw a flow diagram of what you want to do.
Describe how the motors are controlled now

Sometimes things are as simple as turning off and on and large loads can be handled by a relay but there are lots of things to take into account in hardware and software.

For example motors often produce a lot of electrical noise and so you need fly back diodes etc to prevent them damaging electronics.

Sensors are relatively easy as there will almost certainly be examples already done.

Code can get complicated when you have multiple inputs and states but you don’t design in code, design on paper first in plain language

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