An intelligent control system and method for chassis temperature

Abstract

The present invention proposes an intelligent chassis temperature control system and method based on a single-chip microcomputer. The chassis temperature control system includes a single-chip microcomputer, a temperature sensor inside the chassis, a temperature sensor outside the chassis, a fan and a fan operation drive circuit, and two temperature sensors sense The temperature value is output to the single-chip microcomputer. The single-chip microcomputer includes a fan low-speed operation control terminal and a fan high-speed operation control terminal, which are respectively connected to the fan operation drive circuit. The fan operation drive circuit controls the fan to operate at high speed and low speed based on the control signal of the single chip or stop running state, the scheme of the present invention fully considers the temperature inside the chassis and the temperature conditions of the environment where the chassis is located, innovatively proposes a temperature control strategy that can comprehensively consider the temperature environment inside and outside the chassis, and then makes the chassis durable Work under ideal temperature conditions, improve temperature control efficiency, and effectively reduce fan power consumption.

Description

technical field [0001] The invention relates to the field of temperature control, in particular to a single-chip microcomputer-based chassis temperature control system and method. Background technique [0002] The temperature control of traditional chassis such as computer chassis generally uses the power supply to supply power to the fan, and the fan rotates constantly to control the temperature of the chassis. This is not only difficult to achieve accurate control of the temperature of the chassis, but also causes a large waste of electric energy. Sometimes in the prior art, in order to reduce noise, an adjustable rheostat is also used to adjust the fan speed, but this artificial adjustment does not control the fan speed according to the actual temperature of the chassis, and cannot control the temperature in the chassis to a minimum level according to the actual environment. within the ideal range. In the prior art, there is also a technology that detects the temperature...

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Problems solved by technology

[0002] The temperature control of traditional chassis such as computer chassis usually directly uses the power supply to supply power to the fan, and the fan rotates constantly to control the temperature of the chassis, which not only makes it difficult to accurately control the temperature of the chassis, but also causes a large waste of electric energy

Sometimes in the prior art, in order to reduce noise, an adjustable rheostat is also used to adjust the fan speed, but this artificial adjustment does not control the fan speed according to the actual temperature of the chassis, and cannot control the temperature in the chassis to a minimum level according to the actual environment. within the ideal range

In the prior art, there is also a technology that detects the temperature in the chassis by installing a temperature sensor in the chassis, and controls the operation of the fan according to the detection result to achieve an ideal cooling effect, but this temperature sensor is often set in a specific position in the chassis , the operation of the fan is controlled simply according to the detection value of the temperature sensor, without considering the temperature conditions of the environment where the chassis is located. The detected temperature value may also reach the condition that the fan is turned on, resulting in a waste of electric energy. In the cold winter, although the heating element is already very hot, due to the natural convection of the ambient temperature difference, the temperature value sensed by the temperature sensor in the chassis is low It may not be able to reach the fan opening temperature condition, which may cause the heating element to be damaged by heat. Therefore, in the prior art, when controlling the temperature of the chassis containing the heating element, the effect of accurately controlling the temperature in the chassis has not been achieved, which affects the heating element. Normal operation, and to a certain extent caused the waste of electric energy

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