Intelligent temperature and humidity controller

Abstract

The invention discloses an intelligent temperature and humidity controller, which comprises a shell, a power supply, a temperature and humidity sensor, a microprocessor, an executing module and a display system, wherein the temperature and humidity sensor is connected with the microprocessor through an A / D (analog / digital) converter; one end of the microprocessor is connected with the power supply; the other end of the microprocessor is connected with the display system; an amplification driver is connected between the microprocessor and the executing module; and a digital regulator is connected on the microprocessor. The intelligent temperature and humidity controller is high in precision and quick in response speed, can perform programmed control, and has three functions of cooling by ventilating, heating at low temperature, and heating for removing dampness.

Description

technical field [0001] The invention belongs to the power electronics industry, and in particular relates to an intelligent temperature and humidity controller used for switch cabinets, central cabinets, box-type substations and the like in power systems. Background technique [0002] In order to ensure the normal and reliable operation of high-voltage power equipment such as switch cabinets and central cabinets, there are high requirements for anti-condensation inside them. At present, in order to prevent the generation of internal anti-condensation, a heater is usually installed to use the heat generated during work to increase the temperature and prevent the occurrence of condensation. The control of the heater often uses a resistive condensation chip as a sensor. Although the circuit is simple, the accuracy is poor; another way is to use a humidity sensitive resistor and a humidity sensitive capacitor as a sensor. In a high-voltage environment, analog quantities are eas...

AI Technical Summary

Problems solved by technology

The control of the heater often uses a resistive condensation chip as a sensor. Although the circuit is simple, the accuracy is poor; another way is to use a humidity sensitive resistor and a humidity sensitive capacitor as a sensor. In a high-voltage environment, analog quantities are easily disturbed during transmission, resulting in reduced measurement accuracy

Images