CN101008912A - Method and device for monitoring status of computer power supply fan - Google Patents
Method and device for monitoring status of computer power supply fan Download PDFInfo
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Abstract
This invention relates to one device and method to monitor computer power fan status, which comprises the following parts: speed sensor connected to computer power exit; A/D converter; receive signal end on computer host board and monitor control module, monitor control module to read fan rotation signal from signal end to judge whether the fan is normal by protection actions of control system.
Description
Technical field
The present invention relates to computer realm, particularly relate to a kind of apparatus and method of monitoring status of computer power supply fan.
Background technology
In modem computer systems, system power supply (Power Supply) provides computer system necessary supply voltage.The stable operation stable and power supply of computer system is closely bound up.
Directly alternating current is converted to galvanic electric equipment as one, power supply inside exists bigger thermal efficiency, and therefore, the heat radiation of power supply itself requires also height very.Power supply heat sinking is directly finished by power supply fan, and power supply fan mainly satisfies the power supply heat sinking demand, and system radiating demand (as: video card heat radiation) also is provided simultaneously.So to some degree, whether the running of system power supply fan is normal, the stability of computer system operation will be had influence on directly.If power supply fan breaks down, stop operating, power supply and internal system part temperatures constantly raise, and the result will be abnormally dangerous, and serious meeting has influence on the security of computer system operation, even breaking out of fire.Therefore, obtain the power supply fan situation exactly,, in time handle at situation about being occurred, can be fine evade above risk.
At present, the temperature control sensor that the control of existing systems power supply fan rotating speed uses power supply to carry is controlled rotation speed of the fan automatically, system power supply self has been formed relatively independent control system, do not report the operating condition information of power supply fan to the PC system, because the restriction of these conventional art implementations, caused partition for virtually the information interchange between power supply and the system, therefore when abnomal condition occurring, the PC system can not tackle this state effectively.
The operating condition of power supply fan can't feed back in the computer system, system level can't be judged the operating condition of power supply fan, at this problem, some parts manufacturer uses a kind of special power supply design, original power pins is increased definition, as judging pin, monitor the fan running status according to the power supply fan output signal.
Chinese patent application CN200420072667.4 discloses a kind of computer power supply attemperating unit, comprising: power supply fan; The temperature sense circuit is used for the testing power supply environment temperature, the power supply temperature signal of output expression power-supply ambient temperature size; The cpu load signal is used to represent whether full-load run of CPU; Control circuit, its input end inserts cpu load signal and power supply temperature signal, and output terminal output control signal control power supply fan rotating speed, and when CPU full-load run, the control power supply fan rotates with maximum speed; And CPU is when normally moving, according to power supply temperature signal control power supply fan rotating speed.This computer power supply attemperating unit is when CPU full-load run, and power supply fan just rotates with heat radiation in advance with its maximum speed, avoids heat radiation to lag behind.
But the deficiency of this method is conspicuous, mainly is: 1, lack the effective monitoring to the power supply fan state; 2, when power supply unit during as non-standard parts, component costs increases, and the handling of goods and materials complexity is unfavorable for that large-scale production imports.It can not well satisfy computer system security, stable operation demand.
Summary of the invention
The objective of the invention is to overcome above-mentioned defective and a kind of apparatus and method of monitoring the power supply fan state are provided, it can the real-time judge fan running or unusual stall, effectively reduces the risk of computer system.
For realizing the device of a kind of monitoring status of computer power supply fan that the object of the invention provides, comprise the speed pickup that is connected on the computer power supply air outlet, A/D converter is positioned at received signal port and Monitoring and Controlling module on the computer motherboard;
The Monitoring and Controlling module is used for reading fan rotating speed signals from the received signal port, judges whether operate as normal of fan according to tach signal, and takes safeguard measure according to judged result control computer system.
2/3 place of described speed pickup directly over the whole air outlet decentering of the power supply fan of computer cabinet position.
The present invention also provides a kind of method of monitoring status of computer power supply fan, comprises the following steps:
Steps A) computer system starting, in the self check process, BIOS initialization received signal port, computer system powers on for speed pickup and A/D converter;
Step B) the rotating speed state of speed pickup monitoring computer power supply fan, the output analog electrical signal is given A/D converter, and A/D converter is converted to digital signal with analog electrical signal, and A/D converter is given the received signal port with digital data transmission;
Step C) the Monitoring and Controlling module is from the running status of received signal port COM2 inquiry judging computer power supply fan, and takes safeguard measure according to judged result control computer system.
Described step B) can comprise the following steps:
Step B1) when the computer power supply fan running normal, speed pickup output high level analogue electric signal, the useful signal that the expression power supply fan works well;
Step B2) when the computer power supply fan running undesired, speed pickup output low level analog electrical signal, expression power supply fan abnormal disablement signal that turns round;
Step B3) when the computer power supply fan running normal, during output high level analogue electric signal, A/D converter is digital signal " 1 " with the high level analogue conversion of signals;
Step B4) undesired when the computer power supply fan running, during the output low level analog electrical signal, A/D converter is converted to digital signal " 0 " with analog electrical signal.
Described step C) can comprise the following steps:
Step C1) in the electric on computers start-up course, the Monitoring and Controlling module is directly inquired about the received signal port by BIOS, judges the running status of computer power supply fan, and takes safeguard measure according to judged result control computer system;
Step C2) after system normally started operation, the Monitoring and Controlling module was moved automatically and is resided in the internal memory, inquired about the received signal port, judged the running status of computer power supply fan, and taked safeguard measure according to judged result control computer system.
Described step C1) can comprise the following steps:
C11) when the digital signal that inquires was " 1 ", the computer power supply fan running was normal, and computer system starts the operating system by normal process;
C12) when the digital signal that inquires is " 0 ", expression computer power supply fan running is undesired, and power supply fan does not have operate as normal, and then the Monitoring and Controlling module is reported to the police and pointed out the user to take safeguard measure.
C13) in the computer system starting operational process, the digital signal that the Monitoring and Controlling module is regularly inquired about the received signal port by BIOS, the running status of judgement computer power supply fan.
Described step C12) can comprise the following steps:
The Monitoring and Controlling module waits for a period of time, if the user does not during this period of time have Backup Data and shutdown, then forced shutdown.
Described step C2) can comprise the following steps:
C21) when the digital signal that inquires was " 1 ", the computer power supply fan running was normal, and system normally moves;
C22) when the digital signal that inquires was " 0 ", the computer power supply fan running was undesired, and the Monitoring and Controlling module is reported to the police and also pointed out the user to take safeguard measure;
C23) in the computer system starting operational process, the digital signal that the Monitoring and Controlling module is regularly inquired about the received signal port by BIOS, the running status of judgement computer power supply fan.
Described step C22) can comprise the following steps:
The Monitoring and Controlling module waits for a period of time, if the user does not during this period of time have Backup Data and shutdown, then forced shutdown.
Described received signal port is asynchronous serial communication port COM2.
The invention has the beneficial effects as follows: the apparatus and method of monitoring power supply fan state of the present invention, it has very strong specific aim and operability, and it is at the power supply fan status detection, and need not to increase any circuit on mainboard, and is workable; Implementation is easier flexibly, and it is directly effectively handled adopting information bigger than normal by software; Device is simple, assembles simple and easy to do; Can be good at compatible existing parts, the practicality height, it need not existing computer organization is done any adjustment, has improved the standardization of parts effectively, makes this device be easier to be applied in practice.
Description of drawings
Fig. 1 is a power supply fan state monitoring apparatus synoptic diagram of the present invention;
Fig. 2 is a power supply fan status monitoring process flow diagram of the present invention;
Fig. 3 is a power supply fan state deterministic process process flow diagram among Fig. 1.
Embodiment
The apparatus and method of monitoring status of computer power supply fan of the present invention are described in further detail below in conjunction with accompanying drawing 1～3.
The present invention increases a rotation speed monitor in existing computer system, monitoring power supply fan running status, and feed back to computer system in real time, computer system is taked follow-up safeguard measure on this basis.
As shown in Figure 1, the device of monitoring status of computer power supply fan of the present invention comprises the speed pickup 1 that is connected on the computer power supply air outlet, and A/D converter 2 is positioned at the received signal port 3 on the computer motherboard, and Monitoring and Controlling module 4.
Speed pickup 1 is used for detecting computing machine at operational process, and whether power supply fan rotates is computer system heat radiation, and the analog signal transmission that will detect the result is given A/D converter 2.
Preferably, this speed pickup 1 is installed on the power supply fan air outlet of computer cabinet, in the position of wind-force maximum, usually, is positioned at 2/3 place directly over the whole air outlet decentering position.Certainly, also can be positioned at other position, as long as it can detect the rotating speed of computer power supply fan well.
This speed pickup 1 can be an existing ZSL04 type magnetoelectric tachometric transducer (blue magnificent sensor factory, Xi'an), its measurement range is: 0～10000r.p.m, working temperature :-60～+ 80 ℃, can be good at satisfying the monitoring of computer system power source rotation speed of the fan.
A/D converter 2 is used for the simulating signal that inbound pacing sensor 1 transmission comes, and is digital signal with analog signal conversion, and is transferred to received signal port 3.
Received signal port 3 is used to receive the digital signal that A/D converter 2 transmission come, and when 4 requests of Monitoring and Controlling module, handles to Monitoring and Controlling module 4 digital data transmission.
Preferably, received signal port 3 is computer motherboard interfaces, as the COM2 port, when in 4 requests of Monitoring and Controlling module, handles to Monitoring and Controlling module 4 digital data transmission.
Monitoring and Controlling module 4 is used for reading fan rotating speed signals from received signal port 3, judges whether operate as normal of fan according to tach signal, and takes safeguard measure according to judged result control computer system.
The embodiment of the invention is by the rotary speed physical quantity of general speed pickup 1 detecting computer power supply power supply operating condition, the output analog electrical signal, and it is transferred to A/D converter 2, A/D converter 2 is converted to digital signal after receiving simulating signal, is input to the COM2 port; Monitoring and Controlling module 4 is by the digital signal level of monitoring COM2 port; judge the operating condition of system power supply fan; be whether normal rotation work of computer power supply; and take safeguard measure according to judged result control computer system; be the alarm user; take measures to protect computer system by the user, if the user does not take to protect the measure of computer system, then forced shutdown in the time of setting.
Preferably, the rotary speed physical quantity of speed pickup 1 detecting computer power supply operating condition when the computer power supply fan running is normal, when rotating as the speed of pressing setting, is exported the high level analogue electric signal, the useful signal that the expression power supply fan works well; When the computer power supply fan running undesired; when not rotating (stall) as power supply fan; the output low level analog electrical signal; expression power supply fan abnormal disablement signal that turns round, at this moment, power supply fan does not have operate as normal; therefore not heat radiation effectively; influence the performance of computing machine, there is potential danger in computing machine, and system should take necessary safeguard measure.
Usually, speed pickup 1 in the embodiment of the invention and A/D converter 2, and between A/D converter 2 and the mainboard received signal port COM2, link together and transmission signals by known electronic circuit.
Further describe the method for the monitoring status of computer power supply fan of the embodiment of the invention below in conjunction with said apparatus.
Shown in Fig. 2,3, comprise the following steps:
A) computer system starting, in the self check process, BIOS initialization received signal port COM2, computer system powers on for speed pickup 1 and A/D converter 2.
The user powers on to computer system, when starting computer system, in the process of carrying out self check, BIOS initialization internal storage (internal memory) and each external unit, and port are in the present embodiment, port of BIOS initialization is a received signal port 3, as COM2.Simultaneously, the mainboard of computer system powers on for speed pickup 1 and A/D converter 2 by computer power supply.
B) the rotating speed state of speed pickup 1 monitoring computer power supply fan, the output analog electrical signal is given A/D converter 2, and A/D converter 2 is converted to digital signal with analog electrical signal, and A/D converter 2 is given received signal port COM2 with digital data transmission.
After computer system powers on for speed pickup 1 and A/D converter 2, the rotary speed physical quantity of speed pickup 1 detecting computer power supply operating condition, when the computer power supply fan running normal, when rotating as the speed of pressing setting, output high level analogue electric signal, the useful signal that the expression power supply fan works well; When the computer power supply fan running undesired; when not rotating (stall) as power supply fan; the output low level analog electrical signal; expression power supply fan abnormal disablement signal that turns round, at this moment, power supply fan does not have operate as normal; therefore not heat radiation effectively; influence the performance of computing machine, there is potential danger in computing machine, and computer system should be taked necessary safeguard measure.
The analog electrical signal of output transfers out A/D converter 2, A/D converter 2 is converted to digital signal with analog electrical signal, when the computer power supply fan running is normal, during output high level analogue electric signal, A/D converter 2 is digital signal " 1 " with the high level analogue conversion of signals; Undesired when the computer power supply fan running, during the output low level analog electrical signal, A/D converter 2 is converted to digital signal " 0 " with analog electrical signal.
A/D converter 2 is given received signal port COM2 with digital data transmission.
C) Monitoring and Controlling module 4 is from the running status of received signal port COM2 inquiry judging computer power supply fan, and takes safeguard measure according to judged result control computer system.
As shown in Figure 3, the running status of Monitoring and Controlling module 4 monitoring power supply fan states comprises BIOS stage and computing machine normal operating phase.
C1) in the electric on computers start-up course, Monitoring and Controlling module 4 is directly inquired about received signal port COM2 by BIOS, judges the running status of computer power supply fan, and takes safeguard measure according to judged result control computer system.
In the electric on computers start-up course, after BIOS initialization received signal asynchronous serial communication port COM2 finished, Monitoring and Controlling module 4 was directly inquired about asynchronous serial communication port COM2 by BIOS, from port reads peek word signal.
Monitoring and Controlling module 4 utilizes the digital signal that inquires to judge the operation conditions of computer power supply fan.
C11) when the digital signal that inquires when " 1 ", expression computer power supply fan running is normal, as press the normal speed operation rotation of setting of computing machine, then computer system is by normal process start the operating system (OS);
C12) when the digital signal that inquires is " 0 ", expression computer power supply fan running is undesired, does not rotate (stall) as power supply fan, and power supply fan does not have operate as normal, and then Monitoring and Controlling module 4 is reported to the police and pointed out the user to take safeguard measure.
The computer power supply fan running is undesired, does not dispel the heat effectively, influences the performance of computing machine; there is potential danger in computing machine; therefore, computer system should be taked necessary safeguard measure, and Monitoring and Controlling module 4 reports to the police the loudspeaker of computing machine by the BIOS calling routine.
Monitoring and Controlling module 4 can be set and wait for a period of time, if the user does not during this period of time have Backup Data and shutdown, then forced shutdown.
Preferably, the time that Monitoring and Controlling module 4 is waited for is 120 seconds, helps the user and has ample time and carry out data backup, normal shutdown.
C13) in the computer system starting operational process; Monitoring and Controlling module 4 is regularly inquired about the digital signal of asynchronous serial communication port COM2 by BIOS; judge the running status of computer power supply fan, and take safeguard measure according to judged result control computer system.
Preferably, Monitoring and Controlling module 4 is 5 seconds by the time that BIOS regularly inquires about asynchronous serial communication port COM2, like this, neither can influence the normal running speed of computing machine, can monitor the working order of calculating power supply fan again in real time.
C2) after system normally started operation, Monitoring and Controlling module 4 was moved automatically and is resided in the internal memory, inquired about asynchronous serial communication port COM2, judged the running status of computer power supply fan, and taked safeguard measure according to judged result control computer system.
After system normally starts operation, in the os starting process, can pass through batch program, as AUTOEXEC.BAT, operational monitoring control module 4, and Monitoring and Controlling module 4 resided in the operating system memory.
Monitoring and Controlling module 4 is directly visited asynchronous serial communication port COM2, and inquiry velocity sensor 1 process A/D converter 2 is transferred to the digital signal of port COM2, obtains the digital signal information of COM2.
Monitoring and Controlling module 4 utilizes the digital signal that inquires to judge the operation conditions of computer power supply fan.
C21) when the digital signal that inquires is " 1 ", expression computer power supply fan running is normal, as presses the normal speed operation rotation of setting of computing machine, does not then do any action, and system normally moves;
C22) when the digital signal that inquires is " 0 ", expression computer power supply fan running is undesired, does not rotate (stall) as power supply fan, and power supply fan does not have operate as normal, and then Monitoring and Controlling module 4 is reported to the police and pointed out the user to take safeguard measure.
The computer power supply fan running is undesired, does not dispel the heat effectively, influences the performance of computing machine; there is potential danger in computing machine; therefore, computer system should be taked necessary safeguard measure, and Monitoring and Controlling module 4 reports to the police the loudspeaker of computing machine by the BIOS calling routine.
Monitoring and Controlling module 4 waits for a period of time, if the user does not during this period of time have Backup Data and shutdown, then forced shutdown.
With step C12) described, preferably, the time that Monitoring and Controlling module 4 is waited for is 120 seconds.
C33) in the computer system starting operational process; Monitoring and Controlling module 4 is regularly inquired about the digital signal of asynchronous serial communication port COM2 by BIOS; judge the running status of computer power supply fan, and take safeguard measure according to judged result control computer system.
Preferably, Monitoring and Controlling module 4 is 60 seconds by the time that BIOS regularly inquires about asynchronous serial communication port COM2, like this, neither can influence the normal running speed of computing machine, can monitor the working order of calculating power supply fan again in real time.
The present invention directly is articulated to the system power supply fan outlet by speed pickup 1 with it, monitors fan operating state in real time, in case find that fan running stops, the real-time informing computer system, and take necessary safeguard measure.
With respect to existing systems detection technique and power supply fan detection method, the present invention has many-sided advantage:
1, function specific aim of the present invention and workable
Existing ripe system's detection technique, detect as the system that realizes by hardware monitor IC, what be primarily aimed at is cpu temperature, cpu fan rotating speed, the detection of system fan rotating speed, still unmatchful power supply fan status detection, the rotation situation that is about to power supply fan is excluded outside system's temperature control; And the method for power pins definition is revised by some parts manufacturer, though got through the isolation strip of power supply fan and system-level temperature control, but but need power supply fan and mainboard to cooperate, because the requirement of newly-increased this function also will be made the modification on the circuit, actual operation is not strong.
2, implementation is more flexible.
The present invention is by the apparatus and method of monitoring computer power supply fan, directly detect the power supply fan rotating speed, and the power supply fan running state information is delivered to the mainboard port, finish the data acquisition and the monitoring of power supply fan state, computer system partly need not to increase any other element, and directly effectively handle from the port processing digital signal and to Information Monitoring by the Monitoring and Controlling module, implementation method is easy flexibly.
3, device is simple, assembles simple and easy to do.
An end of the present invention is a speed pickup, and an end sees through the port (as: COM2) that an A/D converter can be directly connected to any one receiving digital signals on the mainboard, and device is simple.During use, the speed pickup end directly is articulated to the system power supply outside, the other end connects the mainboard port and monitors fan operating state in real time.
4, good compatible existing computer system, the practicality height.
Supervising device of the present invention and method do not need to change existing computer system, comprise power supply fan part and main board, and can directly use in all existing computer systems.Make computing machine (PC) product when strengthening the power supply fan monitoring, need not to do any extra adjustment again, the standardization that has improved parts effectively makes this function be easy to use in computing machine (PC) actual product.
Present embodiment is to make those of ordinary skills understand the present invention; and to detailed description that the present invention carried out; but can expect; in the scope that does not break away from claim of the present invention and contained, can also make other variation and modification, these variations and revising all in protection scope of the present invention.
Claims (11)
1. the device of a monitoring status of computer power supply fan, comprise the speed pickup (1) that is connected on the computer power supply air outlet, A/D converter (2) is positioned at the received signal port (3) on the computer motherboard, it is characterized in that, also comprise Monitoring and Controlling module (4);
Monitoring and Controlling module (4) is used for reading fan rotating speed signals from received signal port (3), judges whether operate as normal of fan according to tach signal, and takes safeguard measure according to judged result control computer system.
2. the device of monitoring status of computer power supply fan according to claim 1 is characterized in that, described received signal port (3) is asynchronous serial communication port COM2.
3. the device of monitoring status of computer power supply fan according to claim 2 is characterized in that, 2/3 place of described speed pickup (1) directly over the whole air outlet decentering of the power supply fan of computer cabinet position.
4. the method for a monitoring status of computer power supply fan is characterized in that, comprises the following steps:
Steps A) computer system starting, in the self check process, BIOS initialization received signal port (3), computer system powers on for speed pickup (1) and A/D converter (2);
Step B) the rotating speed state of speed pickup (1) monitoring computer power supply fan, the output analog electrical signal is given A/D converter (2), A/D converter (2) is converted to digital signal with analog electrical signal, and A/D converter (2) is given received signal port (3) with digital data transmission;
Step C) Monitoring and Controlling module (4) is from the running status of received signal port (3) inquiry judging computer power supply fan, and takes safeguard measure according to judged result control computer system.
5. the method for monitoring status of computer power supply fan according to claim 4 is characterized in that, described step B) comprise the following steps:
Step B1) when the computer power supply fan running normal, speed pickup (1) output high level analogue electric signal, the useful signal that the expression power supply fan works well;
Step B2) when the computer power supply fan running undesired, speed pickup (1) output low level analog electrical signal, expression power supply fan abnormal disablement signal that turns round;
Step B3) when the computer power supply fan running normal, during output high level analogue electric signal, A/D converter (2) is digital signal " 1 " with the high level analogue conversion of signals;
Step B4) undesired when the computer power supply fan running, during the output low level analog electrical signal, A/D converter (2) is converted to digital signal " 0 " with analog electrical signal.
6. the method for monitoring status of computer power supply fan according to claim 1 and 2 is characterized in that, described step C) comprise the following steps:
Step C1) in the electric on computers start-up course, Monitoring and Controlling module (4) is directly inquired about the running status that received signal port (3) is judged the computer power supply fan by BIOS, and takes safeguard measure according to judged result control computer system;
Step C2) after system normally started operation, Monitoring and Controlling module (4) was moved automatically and is resided in the internal memory, inquired about received signal port (3), judged the running status of computer power supply fan, and taked safeguard measure according to judged result control computer system.
7. the method for monitoring status of computer power supply fan according to claim 6 is characterized in that, described step C1) comprise the following steps:
C11) when the digital signal that inquires was " 1 ", the computer power supply fan running was normal, and computer system starts the operating system by normal process;
C12) when the digital signal that inquires is " 0 ", expression computer power supply fan running is undesired, and power supply fan does not have operate as normal, and then Monitoring and Controlling module (4) is reported to the police and pointed out the user to take safeguard measure;
C13) in the computer system starting operational process, the digital signal that Monitoring and Controlling module (4) is regularly inquired about the received signal port by BIOS, the running status of judgement computer power supply fan.
8. the method for monitoring status of computer power supply fan according to claim 7 is characterized in that, described step C12) comprise the following steps:
Monitoring and Controlling module (4) waits for a period of time, if the user does not during this period of time have Backup Data and shutdown, then forced shutdown.
9. the method for monitoring status of computer power supply fan according to claim 6 is characterized in that, described step C2) comprise the following steps:
C21) when the digital signal that inquires was " 1 ", the computer power supply fan running was normal, and system normally moves;
C22) when the digital signal that inquires was " 0 ", the computer power supply fan running was undesired, and Monitoring and Controlling module (4) is reported to the police and also pointed out the user to take safeguard measure;
C23) in the computer system starting operational process, the digital signal that Monitoring and Controlling module (4) is regularly inquired about received signal port (3) by BIOS, the running status of judgement computer power supply fan.
10. the method for monitoring status of computer power supply fan according to claim 9 is characterized in that, described step C22) comprise the following steps:
Monitoring and Controlling module (3) waits for a period of time, if the user does not during this period of time have Backup Data and shutdown, then forced shutdown.
11. the method for monitoring status of computer power supply fan according to claim 4 is characterized in that, described received signal port (3) is asynchronous serial communication port COM2.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CNB2006100019874A CN100472467C (en) | 2006-01-23 | 2006-01-23 | Method and device for monitoring status of computer power supply fan |
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| CNB2006100019874A CN100472467C (en) | 2006-01-23 | 2006-01-23 | Method and device for monitoring status of computer power supply fan |
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| CN100472467C CN100472467C (en) | 2009-03-25 |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101609424B (en) * | 2008-06-18 | 2011-05-04 | 英业达股份有限公司 | System hardware monitoring and simulation testing module and method thereof |
| CN101398777B (en) * | 2007-09-27 | 2011-11-30 | 深圳市顶星数码网络技术有限公司 | Method for detecting problems of computer fan |
| CN102996482A (en) * | 2011-09-08 | 2013-03-27 | 上海微电子装备有限公司 | Method and device for detecting states of multiple fans |
| CN104728144A (en) * | 2013-12-23 | 2015-06-24 | 鸿富锦精密电子(天津)有限公司 | Fan control system and method |
| CN105114345A (en) * | 2015-06-12 | 2015-12-02 | 联想(北京)有限公司 | Electronic device and information processing method |
| CN110990070A (en) * | 2019-12-23 | 2020-04-10 | 合肥学院 | Big data computer performance control system |
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- 2006-01-23 CN CNB2006100019874A patent/CN100472467C/en not_active Expired - Fee Related
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101398777B (en) * | 2007-09-27 | 2011-11-30 | 深圳市顶星数码网络技术有限公司 | Method for detecting problems of computer fan |
| CN101609424B (en) * | 2008-06-18 | 2011-05-04 | 英业达股份有限公司 | System hardware monitoring and simulation testing module and method thereof |
| CN102996482A (en) * | 2011-09-08 | 2013-03-27 | 上海微电子装备有限公司 | Method and device for detecting states of multiple fans |
| CN102996482B (en) * | 2011-09-08 | 2015-09-30 | 上海微电子装备有限公司 | A kind of multi-fan condition detection method and device |
| CN104728144A (en) * | 2013-12-23 | 2015-06-24 | 鸿富锦精密电子(天津)有限公司 | Fan control system and method |
| CN105114345A (en) * | 2015-06-12 | 2015-12-02 | 联想(北京)有限公司 | Electronic device and information processing method |
| CN110990070A (en) * | 2019-12-23 | 2020-04-10 | 合肥学院 | Big data computer performance control system |
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| CN100472467C (en) | 2009-03-25 |
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