CN221827286U - Server based on electric data regulation and control heat dissipation - Google Patents

Abstract

The utility model relates to the technical field of servers, and particularly provides a server for regulating and controlling heat dissipation based on electric data, which comprises the following components: the voltage and current sensors are connected with the substrate management controller through an I2C link; the voltage and current sensors collect voltage and current data of power supply circuits of the server components; the temperature sensors are connected with the baseboard management controller through I2C links, and collect temperature data of the server components; the baseboard management controller generates corresponding fan rotating speeds according to the voltage and current data and the temperature data respectively, and sends the larger fan rotating speeds to corresponding fan control parts as target rotating speeds of corresponding server parts. The load voltage is used as the basis for adjusting the rotating speed of the fan, so that the response speed of the fan to the load demand is improved, and the heat dissipation effect is improved.

Description

Servers that regulate heat dissipation based on electrical data

Technical Field

The utility model belongs to the technical field of servers, and in particular relates to a server that regulates heat dissipation based on electrical data.

Background Art

The mainstream design of today's servers is to determine the fan speed by reading the temperature of each device in the current chassis through the BMC. The disadvantage is that the device temperature is transmitted from the inside to the outside. When the system computing load is increased for a short time, the fan speed cannot be increased immediately as the load increases because the device temperature must be read through the BMC before it can be adjusted.

Related technologies In order to improve the timeliness of temperature control, model prediction is used for heat dissipation control. For example, data acquisition, collecting temperature data of multiple time steps in the BMC system, establishing temperature data sets and fan speed data sets; temperature data preprocessing, preprocessing the collected temperature data; building an LSTM-FNN network model, building an LSTM-FNN model based on the LSTM network and the FNN network; training the LSTM-FNN network model and using the trained LSTM-FNN network model to predict the fan speed in the BMC system.

Although this heat dissipation control method based on the prediction model can enable the server to adjust the fan speed in advance to cope with high heat dissipation requirements, the prediction model requires high computing power and occupies a large amount of BMC computing resources.

Utility Model Content

In view of the above-mentioned deficiencies in the prior art, the utility model provides a heat dissipation control device to solve the above-mentioned technical problems.

The utility model provides a server for regulating heat dissipation based on electrical data, comprising:

A plurality of voltage and current sensors, wherein the plurality of voltage and current sensors are connected to a baseboard management controller via an I2C link; the plurality of voltage and current sensors collect voltage and current data of power supply circuits of a plurality of server components;

A plurality of temperature sensors, wherein the plurality of temperature sensors are connected to a baseboard management controller via an I2C link, and the plurality of temperature sensors collect temperature data of a plurality of server components;

The baseboard management controller generates corresponding fan speeds according to the voltage and current data and the temperature data, and sends the larger fan speed as the target speed of the corresponding server component to the corresponding fan control component.

In an optional implementation, the server components include a CPU, a power supply circuit, a PCIe card, a network card, and a functional chip.

In an optional implementation, the CPU corresponds to the first fan, the power supply circuit corresponds to the second fan, the PCIe card corresponds to the third fan, the network card corresponds to the fourth fan, and the function chip corresponds to the fifth fan.

In an optional embodiment, the BMC is connected to a first fan control component of a first fan, the BMC is connected to a second fan control component of a second fan, the BMC is connected to a third fan control component of a third fan, the BMC is connected to a fourth fan control component of a fourth fan, and the BMC is connected to a fifth fan control component of a fifth fan.

In an optional embodiment, the fan control component includes:

A duty cycle controller and a linear regulator circuit, wherein the duty cycle controller outputs a corresponding duty cycle to the linear regulator circuit according to a target rotational speed, and the linear regulator circuit outputs a corresponding voltage value to the fan according to the duty cycle, and the rotational speed of the fan is proportional to the voltage value.

The utility model also provides a server for regulating heat dissipation based on electrical data, comprising:

A plurality of voltage and current sensors, wherein the plurality of voltage and current sensors collect voltage and current data of power supply circuits of a plurality of server components; the plurality of voltage and current sensors are electrically connected to a CPLD, and the CPLD is connected to a BMC via an I2C protocol; an output pin of the CPLD is electrically connected to a fan control component;

The CPLD sends a fan speed adjustment signal to the fan control component based on the voltage and current data and temperature.

In an optional implementation, the voltage and current sensor is connected to an amplifier circuit, the amplifier circuit is connected to a comparator, and the comparator is connected to the CPLD.

In an optional implementation, multiple voltage sensors are included, and the multiple voltage sensors detect voltages of multiple power supply lines; the multiple power supply lines respectively supply power to multiple server components.

In an optional implementation, the BMC is connected to a temperature sensor via an I2C protocol, and the temperature sensor is attached to a surface of a copper heat sink of a server component.

In an optional embodiment, the fan control component includes:

A duty cycle controller and a linear regulator circuit, wherein the duty cycle controller outputs a corresponding duty cycle to the linear regulator circuit according to a target rotational speed, and the linear regulator circuit outputs a corresponding voltage value to the fan according to the duty cycle, and the rotational speed of the fan is proportional to the voltage value.

The beneficial effect of the present invention is that the heat dissipation control device provided by the present invention uses the load voltage as the basis for adjusting the fan speed, thereby improving the response speed of the fan adjustment to the load demand and improving the heat dissipation effect.

In addition, the utility model has a reliable design principle, a simple structure and a very broad application prospect.

BRIEF DESCRIPTION OF THE DRAWINGS

In order to more clearly illustrate the technical solutions in the embodiments of the utility model or the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, for ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

FIG1 is a schematic structural diagram of a heat dissipation control device according to an embodiment of the present invention.

FIG. 2 is a flowchart of a heat dissipation control device according to an embodiment of the present invention.

FIG. 3 is another schematic structural diagram of a heat dissipation control device according to an embodiment of the present invention.

DETAILED DESCRIPTION

In order to enable those skilled in the art to better understand the technical solutions in the present invention, the following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the present invention.

Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art of the present invention. The terms used herein in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention.

The key terms appearing in the present invention are explained below.

BMC, the server remote management controller, is called Baseboard Management Controller in English. It can perform firmware upgrades, check machine equipment, and other operations on the machine when the machine is not turned on. Fully implementing IPMI functions in BMC requires a powerful 16-bit or 32-bit microcontroller, RAM for data storage, flash memory for non-volatile data storage, and firmware, which can provide basic remote manageability in terms of safe remote restart, safe power-on, LAN warning, and system health monitoring. In addition to basic IPMI functions and system operation monitoring functions, mBMC can also realize the selection and protection of BIOS fast components by using one of the two flash memories to store the previous BIOS. For example, when the system cannot be started after a remote BIOS upgrade, the remote administrator can switch back to the previously working BIOS image to start the system. Once the BIOS is upgraded, the BIOS image can also be locked to effectively prevent viruses from invading it.

The I2C bus is a simple, bidirectional, two-wire synchronous serial bus developed by Philips. It only needs two wires to transmit information between devices connected to the bus. The master device is used to start the bus to transmit data and generate a clock to open the transmitting device. At this time, any addressed device is considered a slave device. The relationship between the master and the slave, the send and receive on the bus is not constant, but depends on the data transmission direction at this time. If the host wants to send data to the slave device, the host first addresses the slave device, then actively sends data to the slave device, and finally the host terminates the data transmission; if the host wants to receive data from the slave device, the master device first addresses the slave device. Then the host receives the data sent by the slave device, and finally the host terminates the receiving process. In this case, the host is responsible for generating the timing clock and terminating the data transmission.

The central processing unit (CPU) is the computing and control core of the computer system and is the final execution module for information processing and program running.

In order to facilitate the understanding of the present invention, the heat dissipation control device provided by the present invention is further described below based on the principle of the heat dissipation control device of the present invention in combination with embodiments.

As shown in FIG1 , a server for regulating heat dissipation based on electrical data is provided, including the following structure:

Multiple voltage and current sensors, multiple voltage and current sensors are connected to the baseboard management controller through an I2C link; multiple voltage and current sensors collect voltage and current data of power supply circuits of multiple server components; multiple temperature sensors, multiple temperature sensors are connected to the baseboard management controller through an I2C link, and multiple temperature sensors collect temperature data of multiple server components; the baseboard management controller generates corresponding fan speeds according to the voltage and current data and the temperature data, and sends the larger fan speed as the target speed of the corresponding server component to the corresponding fan control component.

The server components include a CPU, a power circuit, a PCIe card, a network card, and a function chip. The CPU corresponds to the first fan, the power circuit corresponds to the second fan, the PCIe card corresponds to the third fan, the network card corresponds to the fourth fan, and the function chip corresponds to the fifth fan. The BMC is connected to the first fan control component of the first fan, the BMC is connected to the second fan control component of the second fan, the BMC is connected to the third fan control component of the third fan, the BMC is connected to the fourth fan control component of the fourth fan, and the BMC is connected to the fifth fan control component of the fifth fan.

The fan control component includes: a duty cycle controller and a linear regulator circuit. The duty cycle controller outputs a corresponding duty cycle to the linear regulator circuit according to a target speed. The linear regulator circuit outputs a corresponding voltage value to the fan according to the duty cycle. The speed of the fan is proportional to the voltage value.

BMC adds voltage and current data as input parameters of the fan control strategy, that is, the input parameters of the fan control strategy are changed to voltage and current data and temperature data. The fan control strategy is an inherent strategy of BMC, and its basic control logic remains unchanged. The control flow of the fan control strategy after adding input parameters is shown in Figure 2, including: BMC obtains voltage and current data and temperature data of the server component, and the BMC stores a voltage and current-fan speed table and a temperature-fan speed table. According to the obtained voltage and current data, the matching fan speed 1 is queried from the voltage and current-fan speed table, and according to the obtained temperature data, the matching fan speed 2 is queried from the temperature-fan speed table. The larger one is selected from the fan speed 1 and the fan speed 2 as the target speed of the corresponding server component, and the target speed is sent to the fan control component corresponding to the corresponding server component. The duty cycle controller of the fan control component outputs the corresponding duty cycle to the linear regulator circuit according to the target speed, and the linear regulator circuit outputs the corresponding voltage value to the fan according to the duty cycle. Since the speed of the fan is proportional to the voltage value, the fan speed is controlled. The duty cycle controller adopts rs485 to pwm controller, and the linear regulator circuit adopts LDO linear regulator circuit diagram.

By reading the real-time input voltage and current data, the current system load can be determined. When the load is low, the fan speed will be reduced to reduce noise and save energy. When the load is high, the fan speed will be increased accordingly to enhance the heat dissipation capacity and ensure that the system runs stably within the appropriate temperature range. Compared with the traditional control method based on device temperature, the method based on input voltage and current can respond to load changes more quickly, effectively improving the stability and heat dissipation efficiency of the system.

Specifically, please refer to FIG. 3 , the server for regulating heat dissipation based on electrical data includes:

A voltage sensor is used to detect the voltage of a load; the voltage sensor is electrically connected to a CPLD, and the CPLD is connected to a BMC via an I2C protocol; an output pin of the CPLD is electrically connected to a fan driver chip; the BMC is connected to a temperature sensor via an I2C protocol, and the temperature sensor is attached to a surface of a copper heat sink of the load; the CPLD sends a fan speed adjustment signal to the fan driver chip based on the load voltage and temperature.

The CPLD receives the load voltage collected by the voltage sensor and obtains the load temperature from the BMC. The load voltage and load temperature are used as two variables, and the fuzzy control program stored in the register is used to generate the target fan speed. The fan speed is sent to the fan driver chip, and the fan driver chip adjusts the fan speed to the target fan speed. The fuzzy control program is a prior art. For example, the Journal of Central South University of Technology has published "Multivariable Fuzzy Controller and Its Application", which records how to compile the fuzzy control program.

In a preferred embodiment, the voltage sensor is connected to the amplifier circuit, the amplified electric quantity is connected to the comparator, and the comparator is connected to the CPLD. By amplifying the electric signal collected by the voltage sensor, and comparing the amplified electric signal with the standard electric signal of the comparator, and inputting the comparison result into the CPLD, the CPLD can detect in time that the load is in a high-voltage and high-load state, and then perform fan regulation in time, so as to reduce the calculation amount of the CPLD. When the load is in a low-load state, the CPLD does not need to continuously process the voltage signal.

In addition, when the server needs to dissipate heat for multiple loads, such as multiple chips such as CPU and hard disk backplane, multiple voltage sensors can be set to detect the voltages of multiple power supply lines; multiple power supply lines supply power to multiple loads respectively.

Although the utility model is described in detail by referring to the accompanying drawings and in combination with the preferred embodiments, the utility model is not limited thereto. Without departing from the spirit and essence of the utility model, a person of ordinary skill in the art may make various equivalent modifications or substitutions to the embodiments of the utility model, and these modifications or substitutions shall be within the scope of the utility model. Any person of ordinary skill in the art who is familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed in the utility model, and they shall be within the scope of protection of the utility model. Therefore, the scope of protection of the utility model shall be subject to the scope of protection of the claims.

Claims (10)

1. A server for regulating heat dissipation based on electrical data, comprising: A plurality of voltage and current sensors, wherein the plurality of voltage and current sensors are connected to a baseboard management controller via an I2C link; the plurality of voltage and current sensors collect voltage and current data of power supply circuits of a plurality of server components; A plurality of temperature sensors, wherein the plurality of temperature sensors are connected to a baseboard management controller via an I2C link, and the plurality of temperature sensors collect temperature data of a plurality of server components; The baseboard management controller generates corresponding fan speeds according to the voltage and current data and the temperature data, and sends the larger fan speed as the target speed of the corresponding server component to the corresponding fan control component. 2. The server with heat dissipation controlled by electrical data according to claim 1 is characterized in that the server components include a CPU, a power supply circuit, a PCIe card, a network card, and a functional chip. 3. According to the server with heat dissipation controlled by electrical data as described in claim 2, it is characterized in that the CPU corresponds to the first fan, the power supply circuit corresponds to the second fan, the PCIe card corresponds to the third fan, the network card corresponds to the fourth fan, and the functional chip corresponds to the fifth fan. 4. According to the server with heat dissipation controlled by electrical data as described in claim 3, it is characterized in that the baseboard management controller is connected to the first fan control component of the first fan, the baseboard management controller is connected to the second fan control component of the second fan, the baseboard management controller is connected to the third fan control component of the third fan, the baseboard management controller is connected to the fourth fan control component of the fourth fan, and the baseboard management controller is connected to the fifth fan control component of the fifth fan. 5. The server for heat dissipation control based on electrical data according to claim 1, wherein the fan control component comprises: A duty cycle controller and a linear regulator circuit, wherein the duty cycle controller outputs a corresponding duty cycle to the linear regulator circuit according to a target rotational speed, and the linear regulator circuit outputs a corresponding voltage value to the fan according to the duty cycle, and the rotational speed of the fan is proportional to the voltage value. 6. A server for regulating heat dissipation based on electrical data, comprising: A plurality of voltage and current sensors, wherein the plurality of voltage and current sensors collect voltage and current data of power supply circuits of a plurality of server components; the plurality of voltage and current sensors are electrically connected to a CPLD, and the CPLD is connected to a baseboard management controller via an I2C protocol; an output pin of the CPLD is electrically connected to a fan control component; The CPLD sends a fan speed adjustment signal to the fan control component based on the voltage and current data and temperature. 7 . The server with heat dissipation controlled based on electrical data according to claim 6 , wherein the voltage and current sensor is connected to an amplifier circuit, the amplifier circuit is connected to a comparator, and the comparator is connected to the CPLD. 8. The server with heat dissipation regulated based on electrical data according to claim 6 is characterized in that it comprises a plurality of voltage sensors, the plurality of voltage sensors detecting voltages of a plurality of power supply lines; the plurality of power supply lines supply power to a plurality of server components respectively. 9. The server with heat dissipation controlled by electrical data according to claim 6, characterized in that the baseboard management controller is connected to the temperature sensor through the I2C protocol, and the temperature sensor is attached to the surface of the copper heat sink of the server component. 10. The server for controlling heat dissipation based on electrical data according to claim 6, wherein the fan control component comprises: A duty cycle controller and a linear regulator circuit, wherein the duty cycle controller outputs a corresponding duty cycle to the linear regulator circuit according to a target rotation speed, and the linear regulator circuit outputs a corresponding voltage value to the fan according to the duty cycle, and the rotation speed of the fan is proportional to the voltage value.