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PID fan regulation and control strategy implement method and system based on environment temperature

A technology of ambient temperature and implementation method, applied in the field of CPU heat dissipation, can solve problems such as changes, achieve the effects of improving stability, speeding up response speed, and avoiding CPU overheating

Inactive Publication Date: 2017-10-20
ZHENGZHOU YUNHAI INFORMATION TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this technical solution is to solve the problem of how to adjust the PWM value of the fan according to the CPU temperature, and cannot solve the problem of how to make the Kp value change with the change of the ambient temperature and realize the dynamic adjustment of the fan regulation strategy to the ambient temperature.

Method used

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  • PID fan regulation and control strategy implement method and system based on environment temperature
  • PID fan regulation and control strategy implement method and system based on environment temperature
  • PID fan regulation and control strategy implement method and system based on environment temperature

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Embodiment 1

[0034] as attached figure 1 As shown, the implementation method of the PID fan control strategy based on the ambient temperature of the present invention is that during the CPU operation, the current ambient temperature is read through the air inlet temperature sensor, and the Kp value in the fan control strategy is determined according to the ambient temperature. Realize the dynamic adjustment of the PID fan control strategy.

[0035] The method specifically includes the following steps:

[0036] (1) Place the CPU in a temperature-controllable environment, set the ambient temperature T1-Tn, test the PID fan control strategy parameters Kp1-Kpn that meet the heat dissipation requirements, and fit the corresponding relationship between the ambient temperature and the control parameters: Kp=f(T);

[0037] (2) The motherboard management controller (BMC) writes the corresponding relationship between the ambient temperature and the control parameters into the internally integrated...

Embodiment 2

[0048] as attached figure 2 As shown, the system of the PID fan regulation strategy based on the ambient temperature of the present invention is based on the implementation method of the PID fan regulation strategy based on the ambient temperature in Embodiment 1. The system includes an air inlet temperature sensor, a mainboard management controller and a fan management module , the air intake temperature sensor monitors the ambient temperature T of CPU operation in real time, and the air intake temperature sensor sends the ambient temperature T to the motherboard management controller through the I2C bus, and the ambient temperature T is used for the calculation of the Kp value in the fan control strategy; the motherboard management controller Calculate the PWM value required by the current system according to the internally integrated fan control strategy logic statement, and send the PWM value to the fan management module through the I2C bus; the fan management module is us...

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Abstract

The invention discloses a PID fan regulation and control strategy implement method and system based on the environment temperature and belongs to the technical field of CPU heat dissipation. According to the PID fan regulation and control strategy implement method and system, a Kp value is changed along with the change of the environment temperature, and the environment temperature is dynamically regulated through a fan regulation and control strategy. The technical scheme comprises (1) the PID fan regulation and control strategy implement method based on the environment temperature and (2) the PID fan regulation and control strategy system based on the environment temperature, specifically, according to the method, in the CPU operation process, the current environment temperature is read through an air inlet temperature sensor, the Kp value in the fan regulation and control strategy is determined according to the environment temperature, and the PID fan regulation and control strategy is dynamically regulated; and the system comprises the air inlet temperature sensor, a main board management controller and a fan management module, wherein the air inlet temperature sensor sends data to the main board management controller through an I2C bus, and the main board management controller sends the data to the fan management module through an I2C bus.

Description

technical field [0001] The invention relates to the technical field of CPU heat dissipation, in particular to a method and system for realizing a PID fan control strategy based on ambient temperature. Background technique [0002] With the improvement of the market's demand for CPU computing performance and the progress of CPU manufacturing technology, CPU power consumption specifications are gradually increasing. How to discharge the heat generated by the CPU from the system in a timely manner has become the focus of today's CPU designers. Relying on the advantages of high reliability, easy maintenance, and low cost, fan cooling has become the main cooling method for CPUs. The heat dissipation specification of the CPU is linear, not a fixed value. In order to prevent the CPU from overheating or the fan speed from being too high, it is necessary to continuously adjust the fan speed to meet the heat dissipation requirements of the CPU. Compared with the traditional ladder co...

Claims

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Application Information

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IPC IPC(8): F04D27/00G06F1/20G06F17/50
CPCF04D27/004F05D2270/303F05D2270/706G06F1/20G06F30/20G06F2119/08
Inventor 王聪
Owner ZHENGZHOU YUNHAI INFORMATION TECH CO LTD
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