CN100410892C - Multi-fan identification system and control method thereof - Google Patents

Abstract

The present invention relates to a multi-fan identifiable system and a control method thereof. Through a control device having a plurality of fan specification parameter tables, identifiable fans are operated. When a new fan is replaced, the identifiable fan is matched with the corresponding fan specification parameter table to operate the new fan. This not only increases the convenience of fan replacement, but also expands the selectivity of fan sources during the process, thereby reducing production costs and effectively improving industry competitiveness.

Description

Multi-fan identifiable system and control method thereof

technical field

The present invention relates to an identifiable multi-fan system and its control method, especially using multiple fan specification parameter tables, at least one fan and an identification device to increase the convenience of fan replacement.

Background technique

At present, the mainstream central processing unit adopts 130 nanometer (nm, nanometer) or 90 nanometer process technology, but because the high-speed central processing unit is composed of many transistors, its heat generation is higher than that of the previous central processing unit. a lot. Nowadays, CPUs above 1 GHz almost have tens of watts of power, and such a high power consumption directly leads to a sharp increase in the heat generated by the CPU. Especially in hot summer, or in a non-ventilated environment, if good heat dissipation measures are not taken, a large amount of heat energy generated by the CPU will be exported, and electron migration will occur inside the CPU, causing the CPU to Aging or even damage, burning, and affecting other computer internal parts, therefore, a fan with good heat dissipation effect will have a decisive effect on the overall heat dissipation effect of the computer. For example, a known patent discloses a heat dissipation fan structure with a temperature sensor. The fan structure includes: a shell seat, which is provided with a seat plate, and the seat plate is provided with an induction window; a fan, which has a hub in the center, It is accommodated in the shell and fixed on the seat plate; and a temperature sensor is arranged on the fan and corresponds to the heat source through the induction window of the seat plate set on the shell, so as to detect the actual heat source correctly temperature, and then adjust the fan speed according to the temperature; once the temperature changes on the heat sink, the temperature sensor can directly detect and decide to adjust the fan speed.

However, the structure of the above-mentioned heat dissipation fan with a temperature sensor performs an extremely important heat dissipation function, because of its powerful heat dissipation function, it will generate relatively large noise, and the more powerful the heat dissipation fan, the more unbearable the noise level , causing troubles for users in computer use, therefore, there is another fan control method that takes into account both performance and user comfort. For example, another known patent discloses a method for controlling the noise level by the fan speed , the method includes the following steps: obtaining a fan module; obtaining a corresponding relationship between the temperature of a heat source and a rotational speed value of the fan module, and a corresponding relationship between the rotational speed value and the noise value of the fan module; drawing the temperature and the noise value of the heat source The relationship diagram of the rotation speed value of the fan module, and the relationship diagram of the rotation speed value and noise value of the fan module; obtain a temperature control graph; draw the temperature control graph on the temperature of the heat source and the rotation speed value of the fan module Obtain an intersection point on the relationship diagram; obtain the speed range and temperature range of the fan module corresponding to a permissible noise value range to be set, and draw it on the temperature of the heat source and the speed value of the fan module on the relationship diagram; confirm that the intersection point falls within the fan speed range and temperature range corresponding to the allowable noise value; and that the temperature control graph is the desired temperature control graph, and set the parameters of the temperature control graph in the inside the fan.

However, for the manufacturer, in the process of the same batch of computers, the fan specifications and parameters used by the fans in the computer must be consistent, so it is necessary to purchase fans of the same specification. When fans of different specifications are used in the same batch of computers, it will cause difficulties in the manufacturing process, and even cause a significant decrease in the yield and performance of the entire batch of computers, which will damage the reputation of the manufacturer. In addition, for the user, if the original fan in the computer needs to be replaced due to poor performance or damage, the computer can only be equipped with a fan of the original single specification, so the user can only look around for a fan with the same specification as the original fan. The same fan will cause inconvenience for users to replace, and if a fan with the same specifications as the original fan cannot be found and a new fan with a different specification is used, the new fan may not match the original fan specification parameter table, and The heat dissipation performance cannot be controlled, further endangering the computer as a whole and causing hidden worries in the use safety.

In the known technology, fans with a single specification are uniformly used in the computer fan system to match the corresponding single fan specification parameter table, which may not be available for the situation where the fan in the computer is different from the original fan due to the process or use requirements. Comprehensive and complete solution. Therefore, it is extremely urgent to provide a complete fan system and method.

Contents of the invention

The main purpose of the present invention is to provide manufacturers and users with a variety of fans with different specifications to choose from when the fan in the computer needs to be replaced. At the same time, it takes into account the convenience of replacement and industrial competitiveness, so as to make full use of the fan in the computer. economical benefits in use and usage.

Another object of the present invention is to provide the user with the ability to adjust the usage status of the fan according to the environment, and obtain the optimal usage status of the computer and the fan under appropriate conditions.

The present invention relates to an identifiable multi-fan system and its control method, wherein the identifiable multi-fan system includes at least one fan for providing heat dissipation function, wherein the fan is equipped with an identification device, and the identification device can be Fan control pin (Pin), resistance value, logic circuit, etc.; and a control device, which is electrically connected to the fan and has a plurality of fan specification tables in memory, and the fan specification table is used to control the fan operation, wherein the identification device provides the control device to distinguish each fan, so that the control device can identify the fan through the identification device, and select the fan specification parameter table corresponding to the fan to control the fan.

In addition, the control device can be equipped with a sound sensor and a temperature sensor, wherein the microphone is electrically connected to the control device to measure the sound intensity of the environment, and the temperature sensor is electrically connected to the control device for The temperature of a processor is measured, wherein the control device can control the processing speed of the processor.

The present invention further provides a multi-fan identifiable system control method, which is applied to the multi-fan identifiable system, wherein, in the multi-fan identifiable system control method, firstly, the control device identifies the fan through the identification device of the fan, and then The control device reads the fan specification parameter table corresponding to the fan from the fan specification parameter table in the memory, and then confirms whether the multi-fan identifiable system is set to the silent mode; if it is not in the silent mode, read it by the control device The temperature of the processor measured by the temperature sensor, and finally the control device selects the fan corresponding to the temperature measured by the temperature sensor from the corresponding fan specification parameter table, and operates the fan according to the corresponding fan control; if The multi-fan identifiable system is set to silent mode, then the control device selects the fan with the lowest sound intensity from the corresponding fan specification parameter table, and operates the fan according to the fan control with the lowest sound intensity, and then reads it from the control device Take the sound intensity measured by the sound sensor, check whether the measured sound intensity is within a preset range, if it is outside the preset range, reduce the fan speed by a fixed speed each time, and repeat The above-mentioned sound intensity check and fan speed decrease until the measured sound intensity is within a preset range; then the control device reads the temperature measured by the temperature sensor and checks whether the temperature measured by the temperature sensor is within If it is within a set range, if it is outside the set range, it will reduce a fixed computing speed each time to reduce the processing speed of the processor, and repeat the above-mentioned temperature inspection and reduction of computing processing speed until the measurement The temperature is within the preset range.

In order to make those familiar with the art understand the purpose, characteristics and effects of the present invention, the present invention is described in detail as follows by following specific embodiments, and cooperate with the accompanying drawings shown:

Description of drawings

Fig. 1 is a block diagram of a preferred embodiment of the present invention;

FIG. 2A is a first fan specification parameter table of a preferred embodiment of the present invention;

FIG. 2B is a second fan specification parameter table of a preferred embodiment of the present invention;

Fig. 3 is a flow chart 1 of a preferred embodiment of the present invention.

FIG. 4 is a second flowchart of a preferred embodiment of the present invention.

Explanation of symbols in the figure:

More than 100 fan identifiable systems

110 first fan

120 first resistor

140 microprocessor control unit

150 microphones

160 temperature sensor

170 CPU

S100 identification fan

S120 reads the fan specification parameter table corresponding to the fan

Is the S140 set to silent mode

S150 selects the lowest sound intensity from the fan specification table to control the fan

S160 measures CPU temperature

S170 measures whether the volume is within the preset range

S180 is controlled by the fan corresponding to the measured temperature selected from the fan specification parameter table

S190 Reduce fan speed

Whether the temperature measured by S210 is within the preset range

S230 reduces CPU computing speed

Detailed ways

Please refer to Figure 1, Figure 2A and Figure 2B, Figure 1 is a block diagram of a preferred embodiment of the present invention, Figure 2A is a first fan specification parameter table of a preferred embodiment of the present invention, Figure 2B is a table of the present invention A second fan specification parameter table of a preferred embodiment. The present invention provides an identifiable multi-fan system 100, which includes a first fan 110 and a microprocessor control unit (MCU, Microprocessor Control Unit) 140, wherein the first fan 110 is matched with a first resistor 120; the microprocessor The control unit 140 has an electrical connection relationship with the first fan 110, and the memory has a first fan specification parameter table and a second fan specification parameter table (see FIG. 2A and FIG. 2B ), and the microprocessor control unit 140 can use The first fan specification parameter table is used to control the operation of the first fan 110, and the microprocessor control unit 140 can use the second fan specification parameter table to control the operation of a second fan (not shown in the figure), wherein, The micro-processing control unit 140 can identify the first fan 110 through the voltage value generated by the first resistor 120, and then choose to read the first fan specification parameter table corresponding to the first fan 110, and use the first fan 110 A fan specification parameter table is used to control the operation of the first fan 110 .

In addition, the micro-processing control unit 140 can be equipped with a microphone (Microphone) 150 and a temperature sensor 160, wherein the microphone 150 is electrically connected with the micro-processing control unit 140 to measure the sound intensity, and the measured The signal of the sound intensity is sent to the micro-processing control unit 140, and the temperature sensor 160 is electrically connected to the micro-processing control unit 140 to measure the temperature of a central processing unit (CPU, Central Processing Unit) 170, and the The signal of the measured temperature is sent to the microprocessing control unit 140, wherein the central processing unit 170 is electrically connected to the microprocessing control unit 140, and the microprocessing control unit 140 can control the central processing unit 170 computing speed.

In addition, the present invention further provides a multi-fan identifiable system control method, please refer to FIG. 3 . FIG. 3 is a flowchart 1 of a preferred embodiment of the present invention. The multi-fan identifiable system control method can be applied to the multi-fan identifiable system 100, the multi-fan identifiable system control method is firstly generated by the microprocessor control unit 140 through the first resistor 120 of the first fan 110 voltage value to identify the first fan 110 (S100); then the microprocessor control unit 140 reads the first fan specification parameter table corresponding to the first fan 110 from the fan specification parameter table in the memory (S120) ; Then check whether the multi-fan identifiable system 100 is set to a silent mode (S140). In the silent mode, the sound intensity measured by the microphone is below 30 decibels (dB, decibel) as an example; if it is not in the silent mode, Then the microprocessor control unit 140 reads the temperature of the CPU 170 measured by the temperature sensor 160 (S160), where the temperature of the CPU 170 measured by the temperature sensor 160 is 55° C. as an example; Finally, the microprocessor control unit 140 selects a fan speed of 3000 rpm (revolutions per minute) corresponding to the measured central processing unit 170 temperature of 55° C. from the first fan specification parameter table, and the microprocessor control unit 140 controls The first fan 110 is to reach the fan speed 3000rpm corresponding to the measured temperature of 55°C in the first fan specification parameter table (S180); as shown in Figure 4, Figure 4 is a flow chart of a preferred embodiment of the present invention Second, if it is in silent mode, the microprocessing control unit 140 selects the fan speed 2800rpm corresponding to the lowest sound intensity of 27 decibels from the first fan specification parameter table, and the microprocessing control unit 140 controls the first fan 110 In order to reach the fan speed 2800rpm corresponding to the minimum sound intensity of 27 decibels in the first fan specification parameter table (S150); then the micro-processing control unit 140 reads the sound intensity measured by the microphone 150, and measures the Whether the sound intensity measured by the microphone 150 is within a preset range (below 30 decibels) (S170), where the sound intensity measured by the microphone 150 is 31 decibels as an example; The sound intensity of 31 decibels measured by 150 exceeds the 30 decibels set by the silent mode, so the micro-processing control unit 140 will reduce the fixed speed of the first fan 110 each time (here, 100 rpm is used as an example each time) , to reduce the rotating speed of the first fan 110 (S190), then repeat the above-mentioned steps S170 and S190, until the sound intensity measured by the microphone 150 is below the 30 decibels set by the silent mode; then the microprocessor control unit 140 Read the temperature measured by the temperature sensor 160, and measure whether the temperature measured by the temperature sensor 160 is within a preset range (in this embodiment, the preset range is below 60° C.) (S210). The temperature measured by the temperature sensor 160 is 65°C as an example; since in this example, the temperature 65°C measured by the temperature sensor 160 exceeds the preset range of 60°C, the microprocessor control unit 140 will reduce a fixed operation processing speed of the central processing unit 170 each time (in this case, 0.1 GHz is used as an example each time) to reduce the operation processing speed of the central processing unit 170 (S230), and then repeat the above-mentioned steps S210 and S230 , until the temperature measured by the temperature sensor 160 is below 60° C. set in the preset range, all the control procedures are not ended.

In addition, when the multi-fan identifiable system is replaced and connected to a second fan, fan control of different specifications can also be achieved through the above-mentioned structure and method.

It should be noted that the first resistor 120 is used as an example for the above identification device, but in practice, the first resistor 120 can be replaced by any device that can be identified by the microprocessor control unit 140, such as a logic circuit, a control pin of a fan, etc. Nothing is impossible. In addition, the central processing unit 170 is used as an example for the heat source device matched with the first fan 110, but any heat source device that the microprocessing control unit 140 can adjust and reduce the heat production rate can be used to replace, such as a motor, a compressor, etc. , processor and so on.

To sum up, since the multi-fan identifiable system and its control method of the present invention have a plurality of fan specification parameter tables in the memory of the control device, it is possible to avoid the conventional fan that only uses a single specification with a single fan specification parameter table. It may cause the inconvenience of fan replacement. At the same time, it can expand the choice of fan sources with various specifications during the manufacturing process, thereby reducing production costs and effectively enhancing industrial competitiveness. Therefore, the multi-fan identifiable system and its control method of the present invention can increase the convenience of fan replacement, reduce production costs, and at the same time take into account the convenience of replacement and industrial competitiveness, so that the economic benefits of fans can be fully exerted, so the present invention is very advanced and meet the requirements for applying for a patent for invention.

The present invention has been described in detail above, and the above description is only a preferred embodiment of the present invention, and should not limit the implementation scope of the present invention. That is, all equivalent changes and modifications made according to the application scope of the present invention should still fall within the scope of the patent of the present invention.

Claims (12)

1. A multi-fan identifiable system is characterized in that it includes: A heat dissipation device having at least one fan and a distinguishing device; and A control device, which is electrically connected to the cooling device and stores multiple parameter tables corresponding to fans of different specifications, the fan specification parameter table is used to control the operation of the fan, wherein the control device uses the identification device To identify the specification type of the fan, and select the fan specification parameter table corresponding to the fan to control the fan. 2. The multi-fan identifiable system according to claim 1, wherein the control device comprises at least one microprocessor control unit. 3. The multi-fan identifiable system according to claim 1, wherein the identification device can be one of the following: a resistor, a logic circuit, and a fan control pin. 4. The identifiable multi-fan system according to claim 1, wherein the control device can be matched with a heat source device, and the heat production speed of the heat source device can be controlled by the control device. 5. The multi-fan identifiable system according to claim 1, wherein the control device can be equipped with a sound sensor. 6. The multi-fan identifiable system according to claim 1, wherein the control device can be equipped with a temperature sensor. 7. A multi-fan identifiable system control method, applied to a multi-fan identifiable system, the multi-fan identifiable system includes a heat dissipation device with at least one fan and an identification device; and a control device, and the heat dissipation device The device has an electrical connection relationship and the memory has multiple parameter tables corresponding to fans of different specifications. The fan specification parameter table is used to control the operation of the fan, and the control device uses the identification device to identify the specification type of the fan. , and select the fan specification parameter table corresponding to the fan to control the fan, and the feature is that the multi-fan identifiable system control method includes: an identification step, the control device identifies the fan through the identification device; a reading step, reading the fan specification parameter table corresponding to the fan for the control device; An operation step, using the fan specification table corresponding to the fan to control the operation of the fan. 8. The multi-fan identifiable system control method according to claim 7, wherein a temperature measurement step is included between the reading step and the operation step, and the temperature measurement step is to use a temperature sensor to measure Measure the temperature of a heat source device. 9. The control method of multi-fan identifiable system according to claim 8, characterized in that, the operation step may include a temperature control step, and the temperature control step is for the control device to use the fan specification parameter corresponding to the fan In the table, select a fan speed control corresponding to the temperature of the heat source device measured by the temperature sensor, and operate the fan according to the fan speed control. 10. The multi-fan identifiable system control method according to claim 7, characterized in that a mute setting step may be included between the reading step and the operating step, and the mute setting step is performed by the control device and the In the fan gauge parameter table corresponding to the fan, select a fan speed control corresponding to the low sound intensity of the fan, and operate the fan according to the fan speed control. 11. The multi-fan identifiable system control method according to claim 10, wherein the operation step includes a volume control step, the volume control step adjusts the operation of the fan for the control device until the control device receives The sound intensity measured by a sound sensor is within a preset volume range. 12. The multi-fan identifiable system control method according to claim 11, wherein the operation step includes a temperature balancing step, the temperature balancing step adjusts the operation of a heat source device for the control device until the control device It is received that the temperature measured by a temperature sensor is within a preset temperature range.

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