CN1963530A - Apparatus and method for testing rotate speed of fan - Google Patents
Apparatus and method for testing rotate speed of fan Download PDFInfo
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- CN1963530A CN1963530A CN 200610123553 CN200610123553A CN1963530A CN 1963530 A CN1963530 A CN 1963530A CN 200610123553 CN200610123553 CN 200610123553 CN 200610123553 A CN200610123553 A CN 200610123553A CN 1963530 A CN1963530 A CN 1963530A
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Abstract
This invention discloses one test device and method for fan rotation speed, wherein, the test device comprises one photoelectricity sensor unit, one process unit and one indication unit; the sensor unit is to generate one frequency signal for light intensity of fan; the process unit is to convert frequency signal into rotation signals to judge whether fan rotation speed is within one section; if yes, then the unit generates one first indication signal; if not the unit is to generate one second indication signal.
Description
Technical field
The present invention relates to detect the pick-up unit and the method for rotation speed of the fan, more particularly, relate to a kind of light intensity that utilizes fan to rotate to be reflected and detect fan and whether rotate normal pick-up unit, the invention still further relates to and a kind ofly utilize fan to rotate the light intensity that is reflected to detect fan and whether rotate normal method.
Background technology
In the prior art, the rotating speed of fan is an important indicator of weighing the fan ability, and the rotation speed of the fan of every kind of model all has certain mobility scale, if its rotating speed surpasses this mobility scale, this fan just exists abnormal quality so.In addition, present computer power supply supply and server power supply supply etc. all can be installed a fan it is dispelled the heat, power supply drives by power supply unit itself because fan rotates, and its rotating speed also is to control by the circuit board on the power supply unit, so the rotating speed to the fan of power supply unit detects, and can also find the quality problems that may exist in the power supply unit.
At present the rotation speed of the fan of power supply unit detect the main people of dependence feel judge.Wherein a kind of method is to use band to remove to keep off the blade of the fan of desire detection, goes the resistance size of feeling that band is suffered by the people, thereby judges whether rotation speed of the fan is normal.
Yet conventional detection exists many shortcomings.For example rely on individual's experience fully, detection efficiency is low, and error is big, has great hidden danger of quality, and can't detect problematic fan fully.
Therefore to how correctly to detect problematic fan, promote the efficient and the speed that detect, and remove since rely on the people feel to judge the possibility that produces error, being needs to make great efforts and the target of improvement.
Summary of the invention
The invention provides a kind of pick-up unit of rotation speed of the fan, can overcome the defective of prior art, use reliability height, detection efficiency height and the detection speed of this pick-up unit detection fan fast, the quality of the fan after also can guaranteeing to detect.
One of the object of the invention is, a kind of pick-up unit that detects rotation speed of the fan is provided, and comprises a photoelectricity sensing cell, a processing unit and a Tip element.This photoelectricity sensing cell in response to this fan rotate one of reflect light intensity and produce a frenquency signal.This processing unit is converted to a rotary speed signal with this frenquency signal, and judges that in response to this rotary speed signal the rotating speed of this fan is whether in an interval.If then this processing unit produces one first prompting signal; If not, then this processing unit produces one second prompting signal.This Tip element shows that in response to this first prompting signal a fan rotates normal message, or shows that in response to this second prompting signal a fan rotates unusual message.
Another object of the present invention is to, a kind of method of detection one rotation speed of the fan is provided, comprise the following step: gather fan rotate one of reflect light intensity and produce a frenquency signal; Changing this frenquency signal is a rotary speed signal; Adopting this rotary speed signal to judge whether this rotation speed of the fan is situated between falls within the interval; If then produce one first prompting signal; If not, then produce one second prompting signal; Adopt the first prompting signal to show that a fan rotates normal message; And adopt this second prompting signal to show that a fan rotates unusual message.
The present invention sees through and detects the size that fan rotates the light intensity that is reflected, and then the generation frenquency signal, draw the rotating speed of fan again via processing unit processes, whether rotate normally to judge fan, can reach whereby and improve detection efficiency and speed, and reduce the purpose of the possibility that produces error.
After consulting embodiment graphic and that describe subsequently, this technical field has knows that usually the knowledgeable just can understand other purpose of the present invention, and technological means of the present invention and enforcement aspect.
Description of drawings
Fig. 1 detects the pick-up unit block diagram of rotation speed of the fan for the present invention;
Fig. 2 is the circuit diagram of pick-up unit shown in Figure 1;
Fig. 3 is the logic diagram of detection method of the present invention.
Element numbers explanation among the figure
1: fan 2: pick-up unit
3: light 200: frenquency signal
201: photoelectricity sensing cell 202: rotary speed signal
203: processing unit prompting in 204: the first signal
205: Tip element prompting in 206: the second signal
207: input block 208: power supply
209: display unit 211: hummer
213: power-supply unit 215: the power adjustment unit
2052: the second light emitting diodes of 2051: the first light emitting diodes
2091: seven-segment display 2092: the display driver unit
Embodiment
Fig. 1, Fig. 2 are first embodiment of the present invention synoptic diagram, and Fig. 1 is the block scheme of first embodiment, and Fig. 2 then is its circuit diagram.The first embodiment of the present invention is a kind of pick-up unit 2 of rotating speed of detection one fan 1, and it comprises a photoelectricity sensing cell 201, a processing unit 203, a Tip element 205, an input block 207, a display unit 209, a hummer 211, a power-supply unit 213 and a power adjustment unit 215.Photoelectricity sensing cell 201 can reflect a light 3 over against fan 1 emission one light source in response to the rotation of fan 1, and light 3 can be received by photoelectricity sensing cell 201, and produces a frenquency signal 200 according to its intensity.Processing unit 203 is converted to a rotary speed signal 202 with frenquency signal 200, and judges that in response to rotary speed signal 202 rotating speed of fan 1 is whether in an interval.This interval can be that pick-up unit 2 is just pre-set when itself dispatching from the factory, and can also be that a user inputs to processing unit 203 via input block 207 and decision.213 of power-supply units are used to provide a power supply 208, and after the voltage via power adjustment unit 215 adjustment power supplys 208, are supplied to pick-up unit 2 and make its running.
When the rotating speed of fan 1 in this interval, then processing unit 203 produces one first prompting signal 204.Otherwise processing unit 203 produces one second prompting signal 206.205 of Tip elements comprise one first light emitting diode 2051 and one second light emitting diode 2052.When the rotating speed of fan 1 was judged out in processing unit 203 default intervals, 2051 meetings of first light emitting diode were by 204 activations of the first prompting signal, and the demonstration fan rotates normal message.When the rotating speed of fan 1 was not in processing unit 203 default intervals, second light emitting diode 2052 can be by 206 activations of the second prompting signal, and then show that fan rotates unusual message.The second prompting signal 206 also can drive hummer 211 and send the sound and remind user's fan to rotate to unusual.209 rotating speeds that receive and show fan in response to rotary speed signal 202 of display unit.
Be noted that though Fig. 1 transmits the first prompting signal 204 and the second prompting signal 206 respectively with 2 signal line, yet the present invention does not limit the first prompting signal 204 and the second prompting signal 206 needs to be transmitted by the signal line of separating.In more detail, whether processing unit 203 can be designed to utilize " noble potential " of signal to reach " electronegative potential " to represent fan 1 normal respectively, be that the representative of noble potential signal is normal, the representative of electronegative potential signal is unusual, first light emitting diode 2051 is luminous in response to the noble potential signal, second light emitting diode 2052 is luminous in response to the electronegative potential signal, and hummer 211 is to send the sound in response to the electronegative potential signal.So only need a signal line can represent that fan rotates normal and fan rotates unusual.
And the principle that the described frenquency signal 200 of leading portion can present square-wave signal is when fan rotates, and photoelectricity sensing cell 201 can receive the light of fan reflection, and the blade meeting reflection ray of fan is to photoelectricity sensing cell 201.On the other hand, the slit between the fan blade then can reflection ray to photoelectricity sensing cell 201.Thus, it is bright or dark result that photoelectricity sensing cell 201 promptly can obtain light, and then produces the frenquency signal just like square wave.
Previous embodiment only discloses a kind of optics sensing that utilizes to detect the whether normal embodiment of rotation speed of the fan, and pick-up unit of the present invention also can comprise the Tip element and the display unit of more variety classeses and quantity, so that development in future and demand to be provided.
The second embodiment of the present invention is the method for a kind of detection one rotation speed of the fan, and this method is applied in the pick-up unit as first embodiment.Logic diagram as shown in Figure 3, this method comprises the following step.During execution in step 301, provide one first light emitting diode (corresponding first light emitting diode 2051).During execution in step 303, provide one second light emitting diode (corresponding second light emitting diode 2052).During execution in step 305, input block 207 receives users and one of imports the interval, and the detected device in this interval is stored.During execution in step 307, photoelectricity sensing cell 201 in response to fan rotate one of reflect light intensity and produce a frenquency signal.During execution in step 309, processing unit 203 these frenquency signals of conversion are a rotary speed signal.During execution in step 311, processing unit 203 judges that in response to rotary speed signal rotation speed of the fan is whether in the interval of aforementioned user's input.If then execution in step 313, processing unit 203 produces one first prompting signal.Follow execution in step 315, this first cue activation, first light emitting diode rotates normal message to show fan.If in step 311, judge rotation speed of the fan not in aforementioned interval, then execution in step 317, and processing unit 203 produces one second prompting signal.Then execution in step 319, the second prompting signal activations second light emitting diode is to show that fan rotates unusual message.
Except the shown step of Fig. 3, second embodiment also can carry out all starts of first embodiment, and this technical field has knows that usually the knowledgeable can know the corresponding step of second embodiment, so repeat no more by the explanation of first embodiment.
Aforesaid pick-up unit volume is little, in light weight, easy to use, and can test fan with different numbers of blade, and the rotation speed of the fan scope that can detect is 0 to 99999 rev/min, can satisfy the needs of testing on the existing market (speed during fan full-speed operation at present is below 20000 rev/mins) fully.And and then reach efficient and the speed that promote to detect, and reduce the purpose of the possibility that produces error.
Above-mentioned embodiment only is used for exemplifying enforcement aspect of the present invention, and explaination the present invention's technical characterictic, is not the category that is used for limiting the present invention.The scope that any arrangement of being familiar with change that this operator can finish easily or isotropism all belongs to the present invention is advocated, the present invention's interest field should be as the criterion with claim.
Claims (7)
1. pick-up unit that detects rotation speed of the fan is characterized in that it comprises:
One photoelectricity sensing cell is used to detect fan and rotates institute's reflection ray intensity, and produces a frenquency signal;
One processing unit is converted to a rotary speed signal with this frenquency signal, the rotating speed that is used to judge this fan whether in an interval, if, then produce one first prompting signal, if not, then produce one second prompting signal; And
One Tip element is used to point out fan to rotate the normal first prompting signal and is used to point out fan to rotate second of unusual message and points out signal.
2. pick-up unit according to claim 1 is characterized in that, described Tip element comprises one and is used to show that fan rotates normal message first light emitting diode and is used to show that fan rotates unusual message second light emitting diode.
3. pick-up unit according to claim 1 is characterized in that, also comprises an input block, selective rotation speed of the fan interval.
4. pick-up unit according to claim 1 is characterized in that, also comprises a display unit, is used to show the rotating speed of fan.
5. pick-up unit according to claim 1 is characterized in that, wherein this photoelectricity sensing cell is that a single head formula photoelectricity transmits receiver.
6, a kind of method that detects rotation speed of the fan is characterized in that, comprises the following step:
By detect fan rotate one of reflect light intensity and produce a frenquency signal;
Changing this frenquency signal is a rotary speed signal;
Judge that by rotary speed signal this rotation speed of the fan is whether in an interval;
If then produce one first prompting signal;
If not, then produce one second prompting signal;
The first prompting signal is shown as fan rotates normal message;
The second prompting signal is shown as fan rotates unusual message.
7, detection method according to claim 6 is characterized in that, more comprises the following step:
One first light emitting diode is provided;
Wherein, show that it is this first light emitting diode that this fan rotates normal message.
One second light emitting diode is provided;
Wherein, show that this fan rotates unusual message and is this second light emitting diode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200610123553 CN1963530A (en) | 2006-11-15 | 2006-11-15 | Apparatus and method for testing rotate speed of fan |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200610123553 CN1963530A (en) | 2006-11-15 | 2006-11-15 | Apparatus and method for testing rotate speed of fan |
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| CN1963530A true CN1963530A (en) | 2007-05-16 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200610123553 Pending CN1963530A (en) | 2006-11-15 | 2006-11-15 | Apparatus and method for testing rotate speed of fan |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101923164A (en) * | 2009-05-20 | 2010-12-22 | 罗伯特.博世有限公司 | Be used for determining method and apparatus especially for one or more rotating speeds of the supercharging device of internal combustion engine |
| CN102392816A (en) * | 2011-12-13 | 2012-03-28 | 曙光信息产业(北京)有限公司 | FPGA (field programmable gate array) based system and method for measuring speed of fan |
| CN103148008A (en) * | 2013-03-12 | 2013-06-12 | 滨州市技师学院 | Temperature control fan |
| CN107995945A (en) * | 2015-06-11 | 2018-05-04 | 米斯特博克斯公司 | Air-conditioning sprayer, device and method |
| CN108226566A (en) * | 2018-04-04 | 2018-06-29 | 深圳鳍源科技有限公司 | A kind of Electrical Machinery Rotational Speed Testing System, method and storage medium |
| CN110174523A (en) * | 2019-05-28 | 2019-08-27 | 福建省计量科学研究院（福建省眼镜质量检验站） | A kind of rotation-speed measuring device based on photoelectric sensor |
| CN110332138A (en) * | 2013-03-21 | 2019-10-15 | 北京奇宏科技研发中心有限公司 | The monitoring device in fan spindle bearing service life |
| CN113719464A (en) * | 2021-08-26 | 2021-11-30 | 太仓市同维电子有限公司 | Method for detecting rotating speed of fan of non-network-management type switch |
| CN114688063A (en) * | 2020-12-29 | 2022-07-01 | 昆山广兴电子有限公司 | Automatic fan detection system and automatic fan detection method |
-
2006
- 2006-11-15 CN CN 200610123553 patent/CN1963530A/en active Pending
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101923164A (en) * | 2009-05-20 | 2010-12-22 | 罗伯特.博世有限公司 | Be used for determining method and apparatus especially for one or more rotating speeds of the supercharging device of internal combustion engine |
| CN101923164B (en) * | 2009-05-20 | 2014-11-26 | 罗伯特.博世有限公司 | Method and device for determining one or more rotational speeds of a turbocharging device, in particular for an internal combustion engine |
| CN102392816A (en) * | 2011-12-13 | 2012-03-28 | 曙光信息产业(北京)有限公司 | FPGA (field programmable gate array) based system and method for measuring speed of fan |
| CN102392816B (en) * | 2011-12-13 | 2015-05-13 | 曙光信息产业(北京)有限公司 | FPGA (field programmable gate array) based system and method for measuring speed of fan |
| CN103148008A (en) * | 2013-03-12 | 2013-06-12 | 滨州市技师学院 | Temperature control fan |
| CN110332138A (en) * | 2013-03-21 | 2019-10-15 | 北京奇宏科技研发中心有限公司 | The monitoring device in fan spindle bearing service life |
| CN107995945A (en) * | 2015-06-11 | 2018-05-04 | 米斯特博克斯公司 | Air-conditioning sprayer, device and method |
| CN108226566A (en) * | 2018-04-04 | 2018-06-29 | 深圳鳍源科技有限公司 | A kind of Electrical Machinery Rotational Speed Testing System, method and storage medium |
| CN110174523A (en) * | 2019-05-28 | 2019-08-27 | 福建省计量科学研究院（福建省眼镜质量检验站） | A kind of rotation-speed measuring device based on photoelectric sensor |
| CN114688063A (en) * | 2020-12-29 | 2022-07-01 | 昆山广兴电子有限公司 | Automatic fan detection system and automatic fan detection method |
| CN113719464A (en) * | 2021-08-26 | 2021-11-30 | 太仓市同维电子有限公司 | Method for detecting rotating speed of fan of non-network-management type switch |
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Application publication date: 20070516 |