Temp controller for a farm
A temperature controller for a piglets farm. It has to control the temp of a nest by pwm a 230V lamp. 30 of this will be controlled by a central unit.
A temperature controller for a piglet farm. Each room of the farm has up to 30 "nests". A controller will control up to 2 nests. All the controllers in a room will be comanded by a central unit at the door of th room.
It will control the temp using pwm like AC phase shifting. An optocoupler will detect each zero-crossing on the mains AC line and will trigger the triac after a delay dependent on the duty cycle required. This duty cycle will be calculated by a PID control in software.
Dependending on the age of the piglets, they need diferent temperature(they are 21 days in the farm before being transferred to a fattening farm). This temps will be stored in a table.
Through the central unit, the farmer will set the temps for the table and check the diferent nests temp.
This wil be a prototype with 2 controllers (probably esp8266) and a central unit (hopefully the unit you will give to me).
The central unit wil act as an wifi AP for the other controllers.
It will control the temp using pwm like AC phase shifting. An optocoupler will detect each zero-crossing on the mains AC line and will trigger the triac after a delay dependent on the duty cycle required. This duty cycle will be calculated by a PID control in software.
Dependending on the age of the piglets, they need diferent temperature(they are 21 days in the farm before being transferred to a fattening farm). This temps will be stored in a table.
Through the central unit, the farmer will set the temps for the table and check the diferent nests temp.
This wil be a prototype with 2 controllers (probably esp8266) and a central unit (hopefully the unit you will give to me).
The central unit wil act as an wifi AP for the other controllers.
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