SYSTEME DE REGULATION DE LA VITESSE DES VENTILATEURS PROGRESSIFS POUR SALLES D'ELEVAGE

摘要

The ventilation controller has a keypad (Clav) and a display (Aff) to allow entry and display of set temperature values. The conditions in the shed are monitored and fed back (Ecr) to a microcomputer (uC). The microcomputer compares the measured values with the set values and adjusts the speed of the air circulation fans to correct the error. The correction is obtained from look-up tables stored in a memory (Ram) accessed by the microcomputer. The values in the table can be edited by the user from the key pad. The microcomputer sends control signals to triacs that control the speed of the fan motors. The fans draw air from an entry chamber for more precise control of air speed.