CN105370605B - A kind of control method for fan and device - Google Patents
A kind of control method for fan and device Download PDFInfo
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- CN105370605B CN105370605B CN201410406522.1A CN201410406522A CN105370605B CN 105370605 B CN105370605 B CN 105370605B CN 201410406522 A CN201410406522 A CN 201410406522A CN 105370605 B CN105370605 B CN 105370605B
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Abstract
The invention discloses a kind of control method for fan, including：During fan work, wind pressure/air speed value of the air outlet of the fan is detected；According to wind pressure/air speed value of the air outlet of detection, when determining the air outlet operation irregularity, the fan is controlled to carry out opposite direction rotation, so that the barrier at the air outlet is removed.The present invention also discloses a kind of fan control device.
Description
Technical field
The present invention relates to fan technology, more particularly to a kind of control method for fan and device.
Background technology
At present, distribution-type base station architecture largely is used in now netting, using indoor baseband processing unit (BBU, Building
Base band Unit)+Remote Radio Unit (RRU, Radio Remote Unit) multichannel scheme, so can be fine
Ground solves the problems, such as the in-door covering of large stadium.
In the prior art, the function of the fan control system of BBU is fairly simple, mainly includes：Utilize temperature pressure sensing
Device detects environment temperature and the temperature of BBU veneers, according to the numerical value of the environment temperature of detection and the temperature of BBU veneers, to adjust
The rotating speed of fan；Specifically, as shown in Figure 1, according to the numerical value of the environment temperature of detection and the temperature of BBU veneers, fan is determined
When normal, useThe rotating speed of shown curve adjustment fan, when definite fan is abnormal, usesShown curve
To adjust the rotating speed of fan, when two or more fan fails, other all fans are forced to be adjusted to full speed running；When failure
After fan is back to normal, the rotating speed of fan is adjusted using the curve shown in Fig. 1.
From the above description, it will be seen that existing fan control system is only by simple temperature detection, to adjust
The rotating speed of fan, can not temperature it is abnormal the reason for, such that the temperature of BBU veneers is excessive, so as to reduce making for BBU
It with the service life, while can also increase power consumption, or even catastrophe failure occurs.
The content of the invention
To solve existing technical problem, the embodiment of the present invention provides a kind of control method for fan and device.
An embodiment of the present invention provides a kind of control method for fan, including：
During fan work, wind pressure/air speed value of the air outlet of the fan is detected；
According to wind pressure/air speed value of the air outlet of detection, when determining the air outlet operation irregularity, the wind is controlled
Fan carries out opposite direction rotation, so that the barrier at the air outlet is removed.
It is described according to the wind pressure/air speed value for detecting the air outlet in such scheme, determine that the air outlet work is different
Often, including：
By wind pressure/air speed value of the air outlet of the detection and wind caused by the fan air port normal work of storage
Pressure/wind speed standard value is compared, and determines the wind pressure value of the detection not in the wind pressure/wind speed standard value range.
In such scheme, wind pressure/air speed value of the air outlet by the detection and the fan air port of storage are just
Often wind pressure/wind speed standard value caused by work is compared, determine wind pressure/air speed value of the detection not the wind pressure/
In wind speed standard value range, specifically include：
The wind pressure/wind speed standard value is subtracted to wind pressure/air speed value of the air outlet of the detection, obtains first
Value；
Described first is worth divided by the wind pressure/wind speed standard value, obtains the second value；
By the second value and default threshold value comparison, and determine that the second value is more than the threshold value.
In such scheme, the method further includes：
When the fan, which carries out the rotating duration of opposite direction, reaches the duration set, the fan is controlled to carry out positive direction
Rotation, and wind pressure/air speed value of the air outlet of the fan is detected again；
According to wind pressure/air speed value of the air outlet of the detection of the air outlet of detection, the air outlet work is determined
When making abnormal, the alarm of the air outlet blocking is carried out.
The embodiment of the present invention additionally provides a kind of fan control device, including：Detection unit, determination unit and removing are single
Member；Wherein,
The detection unit, during for fan work, detects wind pressure/air speed value of the air outlet of the fan；
The determination unit, for wind pressure/air speed value of the air outlet according to detection, determines the air outlet work
When abnormal, the clearing cell is triggered；
The clearing cell, after the triggering for receiving the determination unit, controls the fan to carry out opposite direction rotation,
So that the barrier at the air outlet is removed.
In such scheme, the determination unit includes：Comparison module and determining module；Wherein,
The comparison module, for by wind pressure/air speed value of the air outlet of the detection with storage fan air port
Wind pressure caused by normal work/wind speed standard value is compared, and comparative result is sent to the determining module；
The determining module, after the comparative result for receiving the comparison module, determines the wind pressure value of the detection not
In the wind pressure/wind speed standard value range.
In such scheme, the determining module includes：First computing module, the second computing module and determination sub-module；Its
In,
First computing module, for the wind pressure/wind speed standard value to be subtracted to the air outlet of the detection
Wind pressure/air speed value, obtains the first value；
Second computing module, for described first to be worth divided by the wind pressure/wind speed standard value, obtains described second
Value；
The determination sub-module, for by the second value and default threshold value comparison, and determines that the second value is more than
The threshold value.
In such scheme, described device further includes：Alarm Unit；Wherein,
The detection unit, is additionally operable to when the fan carries out the duration that the rotating duration arrival of opposite direction is set, and
After controlling the fan to carry out positive direction rotation, wind pressure/air speed value of the air outlet of the fan is detected again；
The determination unit, is additionally operable to wind pressure/wind speed of the air outlet of the detection of the air outlet according to detection
Value, when determining the air outlet operation irregularity, triggers the Alarm Unit；
The Alarm Unit, after the triggering for receiving the determination unit, carries out the alarm of the air outlet blocking.
Control method for fan and device provided in an embodiment of the present invention, during fan work, detect the air outlet of the fan
Wind pressure/air speed value；According to wind pressure/air speed value of the air outlet of detection, when determining the air outlet operation irregularity, control
The fan carries out opposite direction rotation, so that the barrier at the air outlet is removed, in this way, fan can be removed automatically and efficiently
The barrier of air outlet, avoids the poor heat radiation caused by air outlet blocks and causes the temperature of the equipment using fan
The problem of excessive, so as to ensure that the service life of the equipment, and reduce the power consumption of the equipment.
Brief description of the drawings
Fig. 1 is the adjustment curve schematic diagram of prior art temperature and rotation speed of the fan；
Fig. 2 is one control method for fan flow diagram of the embodiment of the present invention；
Fig. 3 is two control method for fan flow diagram of the embodiment of the present invention；
Fig. 4 is the method flow schematic diagram that the embodiment of the present invention three removes fan outlet barrier；
Fig. 5 is four fan control device structure diagram of the embodiment of the present invention.
Embodiment
The present invention is described in further detail again with reference to the accompanying drawings and examples.
In various embodiments of the present invention：During fan work, wind pressure/air speed value of the air outlet of the fan is detected；
According to wind pressure/air speed value of the air outlet of detection, when determining the air outlet operation irregularity, remove at the air outlet
Barrier.
Embodiment one
The present embodiment control method for fan, as shown in Fig. 2, comprising the following steps：
Step 201：During fan work, wind pressure/air speed value of the air outlet of the fan is detected；
Here, during practical application, the wind can be detected by the wind pressure/wind speed measurement sensor for being arranged on the air outlet
Wind pressure/air speed value of the air outlet of fan.
Step 202：According to wind pressure/air speed value of the air outlet of detection, when determining the air outlet operation irregularity, control
Make the fan and carry out opposite direction rotation, so that the barrier at the air outlet is removed.
Here, it is described according to the wind pressure/air speed value for detecting the air outlet, determine the air outlet operation irregularity, specifically
Including：
By wind pressure/air speed value of the air outlet of the detection and wind caused by the fan air port normal work of storage
Pressure/wind speed standard value is compared, when determining the wind pressure value of the detection not in the wind pressure/wind speed standard value range, then
Think the air outlet operation irregularity；
Here, when determine the detection wind pressure value in the wind pressure/wind speed standard value range when, then it is assumed that it is described go out
Air port is working properly, at this time, can be according to the rotating speed of fan described in existing adjustment of rotational speed policy control；During practical application, when making
When equipment with the fan is BBU, the existing adjustment of rotational speed strategy can be the adjustment of rotational speed strategy shown in Fig. 1.
Wherein, wind pressure/air speed value of the air outlet by the detection and the fan air port of storage work normally
Caused wind pressure/wind speed standard value is compared, and determines wind pressure/air speed value of the detection not in the wind pressure/wind speed mark
In the range of quasi- value, specifically include：
The wind pressure/wind speed standard value is subtracted to wind pressure/air speed value of the air outlet of the detection, obtains first
Value；
Described first is worth divided by the wind pressure/wind speed standard value, obtains the second value；
By the second value and default threshold value comparison, when determining that the second value is more than the threshold value, then it is assumed that described
The wind pressure value of detection is not in the wind pressure/wind speed standard value range；
Correspondingly, when the definite second value is less than or equal to the threshold value, then it is assumed that the wind pressure value of the detection is in institute
State in wind pressure/wind speed standard value range.
If expressed using formula, whether wind pressure/the air speed value for determining the detection is in the wind pressure/wind speed mark
Specific implementation in the range of quasi- value can include：
The factor that is blocked is calculated according to the following formula：
Wherein, r represents the factor that is blocked, SrefRepresent wind pressure/wind speed standard value caused by fan outlet normal work, S
Represent wind pressure/air speed value of the air outlet of the detection；
Work as r>During a, determine wind pressure/air speed value of the detection not in the wind pressure/wind speed standard value range；As r≤a
When, determine wind pressure/air speed value of the detection in the wind pressure/wind speed standard value range.Here, SrefFor under normal circumstances
The a reference value of wind pressure/wind speed, i.e., in the air outlet measuring under normal use corresponding with the rotating speed control word of fan
The corresponding wind pressure/air speed value of the rotating speed control word；The rotating speed control word represents the rotation speed of the fan of fan under normal circumstances
Corresponding setting value.
The value range 0~1 of r；Under normal circumstances, the value of r should be 0, but in view of detection error, temperature, humidity with
And the influence of barometric factor etc., when the air outlet works normally, the value of r may not be 0, therefore, can during practical application
To think to work as r>During a, wind pressure/air speed value of the detection is determined not in the wind pressure/wind speed standard value range, i.e.,：It is described
Air outlet is blocked.A represents default threshold value, and a can be set according to actual conditions such as the system where the fan and environment, than
Such as：A fixed value is can be set as, may be set to be with the relevant on-fixed numerical value of temperature, i.e.,：Different temperature
Corresponding different value.
Here, it is necessary to which explanation, in fan work, detects wind pressure/air speed value of the air outlet in real time；And in real time
According to wind pressure/air speed value of the air outlet of detection, when determining the air outlet operation irregularity, remove at the air outlet
Barrier.
The optional speed of opposite direction can select as needed, such as：The controllable fan carries out opposite direction rotation at full speed
Turn, opposite direction rotation is carried out using the maximum (top) speed of the fan.
The fan opposite direction rotating time can be selected as needed, such as：1 minute etc..
When the fan, which carries out the rotating duration of opposite direction, reaches the duration set, this method can also include：
Control the fan to carry out positive direction rotation, and detect wind pressure/air speed value of the air outlet of the fan again；
According to wind pressure/air speed value of the air outlet of the detection of the air outlet of detection, the air outlet work is determined
When making abnormal, the alarm of the air outlet blocking is carried out, so that maintenance personnel can carry out troubleshooting, reduces failure machine
Rate, so as to improve the stability of the system using fan.
Here, the positive direction refers to：The direction of rotation during fan work；Correspondingly, the opposite direction refers to：With
The opposite direction in direction of rotation during the fan work.
During practical application, the fan can be controlled to carry out the rotating rotating speed of positive direction corresponding under normal circumstances for fan
Rotating speed.
Control method for fan provided in an embodiment of the present invention, suitable for BBU, can be applicable to other need to use fan
Equipment, such as：Server, host device, Mass Storage Unit etc..
Control method for fan provided in an embodiment of the present invention, during fan work, detect the wind pressure of the air outlet of the fan/
Air speed value；According to wind pressure/air speed value of the air outlet of detection, when determining the air outlet operation irregularity, the wind is controlled
Fan carries out opposite direction rotation, so that the barrier at the air outlet is removed, in this way, fan outlet can be removed automatically and efficiently
Barrier, avoid due to air outlet block caused by poor heat radiation and cause use fan equipment temperature it is excessive
Problem, so as to ensure that the service life of the equipment, and reduces the power consumption of the equipment.
When the fan, which carries out the rotating duration of opposite direction, reaches the duration set, the fan is controlled to carry out positive direction
Rotation, and wind pressure/air speed value of the air outlet of the fan is detected again；According to the detection of the air outlet of detection
Wind pressure/air speed value of air outlet, when determining the air outlet operation irregularity, carries out the alarm that the air outlet is blocked, to tie up
Shield personnel can carry out troubleshooting, reduce failure probability, so as to improve the stability of the system using fan.
Embodiment two
The present embodiment is by taking BBU uses fan as an example, to illustrate how control fan.The present embodiment control method for fan, such as
Shown in Fig. 3, comprise the following steps：
Step 301：Fan after the power is turned on, the temperature sensor detection ambient temperature value that is arranged on BBU and by the temperature
Value is sent to the fan governor of BBU；
Step 302：The fan governor adjusts fan according to obtained temperature value and temperature and the adjustable strategies of rotating speed
Rotating speed, performs step 303 afterwards；
Step 303：The fan governor obtains rotation speed of the fan, obtain wind pressure caused by the normal work of fan air port/
Wind speed standard value, and store, step 304 is performed afterwards；
Step 304：It is arranged on wind during wind pressure/wind speed measurement sensor detection fan outlet work of fan outlet
Pressure/air speed value, and wind pressure/air speed value of detection is sent to the fan governor；
Step 305：The fan governor judges whether wind pressure/air speed value of the detection is being prestored in temperature
Within the corresponding wind pressure/wind speed standard value range of rotation speed of the fan under value, if it is, performing step 301, otherwise, hold
Row step 306；
Specifically, the fan governor calculates the factor that is blocked using formula (1), works as r>During a, the wind of the detection is determined
Pressure/air speed value illustrates that the air outlet is normal, is not blocked not in the wind pressure/wind speed standard value range, return to step
301, continue to detect；As r≤a, wind pressure/air speed value of the detection is determined in the wind pressure/wind speed standard value range, this
When illustrate that the air outlet has been blocked, it is necessary to remove the barrier of the air outlet.
Step 306：The fan governor control fan carries out anti-blocking processing, i.e.,：Remove the obstacle at the air outlet
Thing, and terminate currently processed flow.
Embodiment three
The present embodiment is by taking BBU uses fan as an example, to illustrate how to remove the barrier at fan outlet.The present embodiment
The method for removing fan outlet barrier, as shown in figure 4, comprising the following steps：
Step 401：By detection, determine that wind pressure/wind speed of fan outlet is abnormal, perform step 402 afterwards；
Here, the wind pressure of the definite fan outlet/wind speed is abnormal, refers to：Determine that wind pressure/air speed value of detection does not exist
Within the corresponding wind pressure/wind speed standard value range of the rotation speed of the fan under temperature value prestored.
The specific implementation of this step refers to the description of embodiment one and embodiment two, repeats no more.
Step 402：Fan governor controls the fan to reversely rotate T durations, is present in removing at the air port
Barrier, performs step 403 afterwards；
Here, during practical application, for removing obstacles thing as early as possible, the fan opposite direction can be controlled to rotate at full speed,
Step 403：The fan governor controls the fan positive direction rotation, performs step 404 afterwards；
Specifically, the fan governor controls the fan to be rotated with full speed positive direction.
Step 404：Wind pressure/wind speed measurement the sensor for being arranged on fan outlet detects the air outlet of the fan again
Wind pressure/air speed value, and wind pressure/air speed value of detection is sent to the fan governor；
Step 405：The fan governor judges whether wind pressure/air speed value of the detection is being prestored in temperature
Within the corresponding wind pressure/wind speed standard value range of rotation speed of the fan under value, if it is, performing step 406, otherwise, hold
Row step 408；
Specifically, the fan governor calculates the factor that is blocked using formula (1), works as r>During a, the wind of the detection is determined
Pressure/air speed value illustrates that the air outlet is normal not in the wind pressure/wind speed standard value range, and barrier has been eliminated, and enters
Normal rotation speed of the fan flow；As r≤a, determine wind pressure/air speed value of the detection in the wind pressure/wind speed standard value model
In enclosing, illustrating the barrier of the air outlet at this time can not remove, and the air outlet operation irregularity is, it is necessary to which maintenance personal comes clearly
Remove.
Step 406：The air port for recovering the fan blocks alarm flag bit, performs step 407 afterwards；
Here, after the air port blocking alarm flag bit for recovering the fan, the barrier of the air outlet of the fan is shown
It has been eliminated.
Step 407：Into normal rotation speed of the fan process flow, and terminate currently processed flow；
Here, the normal rotation speed of the fan process flow refers to：The fan governor according to obtained temperature value and
Existing adjustment of rotational speed strategy, adjusts rotation speed of the fan.
Step 408：The alarm of the air outlet blocking is carried out, and terminates currently processed flow.
Here, after being alerted, maintenance personnel can carry out troubleshooting, reduce failure probability, so that improving makes
With the stability of the system of fan.
Example IV
To realize the method for embodiment one, the present embodiment provides a kind of fan control device, as shown in figure 5, the device bag
Include：Detection unit 51, determination unit 52 and clearing cell 53；Wherein,
The detection unit 51, during for fan work, detects wind pressure/air speed value of the air outlet of the fan；
The determination unit 52, for wind pressure/air speed value of the air outlet according to detection, determines the air outlet work
When making abnormal, the clearing cell 53 is triggered；
The clearing cell 53, after the triggering for receiving the determination unit 52, controls the fan to carry out opposite direction
Rotation, so that the barrier at the air outlet is removed.
Wherein, the determination unit 51 can include：Comparison module and determining module；Wherein,
The comparison module, for by wind pressure/air speed value of the air outlet of the detection with storage fan air port
Wind pressure caused by normal work/wind speed standard value is compared, and comparative result is sent to the determining module；
The determining module, after the comparative result for receiving the comparison module, determines the wind pressure value of the detection not
When in the wind pressure/wind speed standard value range, then it is assumed that the air outlet operation irregularity；
Here, when the determining module determines that the wind pressure value of the detection is in the wind pressure/wind speed standard value range,
Then think that the air outlet is working properly, at this time, can be according to the rotating speed of fan described in existing adjustment of rotational speed policy control；It is actual
In application, when using the equipment of the fan to be BBU, the existing adjustment of rotational speed strategy can be the rotating speed shown in Fig. 1
Adjustable strategies.
The determining module can include：First computing module, the second computing module and determination sub-module；Wherein,
First computing module, for the wind pressure/wind speed standard value to be subtracted to the air outlet of the detection
Wind pressure/air speed value, obtains the first value；
Second computing module, for described first to be worth divided by the wind pressure/wind speed standard value, obtains described second
Value；
The determination sub-module, for by the second value and default threshold value comparison, determining that the second value is more than institute
When stating threshold value, then it is assumed that the wind pressure value of the detection is not in the wind pressure/wind speed standard value range.
Correspondingly, when the determination sub-module determines that the second value is less than or equal to the threshold value, then it is assumed that the inspection
The wind pressure value of survey is in the wind pressure/wind speed standard value range.
If expressed using formula, whether wind pressure/the air speed value for determining the detection is in the wind pressure/wind speed mark
Specific implementation in the range of quasi- value can include：
It is described that the factor that is blocked is calculated according to the following formula：
Wherein, r represents the factor that is blocked, SrefRepresent wind pressure/wind speed standard value caused by fan outlet normal work, S
Represent wind pressure/air speed value of the air outlet of the detection；
Work as r>During a, the determination sub-module determines wind pressure/air speed value of the detection not in the wind pressure/wind speed standard
In the range of value；As r≤a, the determination sub-module determines wind pressure/air speed value of the detection in the wind pressure/wind speed standard
In the range of value.Here, SrefIt is corresponding with the rotating speed control word of fan for a reference value of wind pressure/wind speed under normal circumstances, i.e., in institute
State the corresponding wind pressure/air speed value of the rotating speed control word measured of air outlet under normal use；The rotating speed control
Word represents the setting value corresponding to the rotation speed of the fan of fan under normal circumstances.
The value range 0~1 of r；Under normal circumstances, the value of r should be 0, but in view of detection error, temperature, humidity with
And the influence of barometric factor etc., when the air outlet works normally, the value of r may not be 0, therefore, can during practical application
To think to work as r>During a, wind pressure/air speed value of the detection is determined not in the wind pressure/wind speed standard value range, i.e.,：It is described
Air outlet is blocked.A represents default threshold value, and a can be set according to actual conditions such as the system where the fan and environment, than
Such as：A fixed value is can be set as, may be set to be with the relevant on-fixed numerical value of temperature, i.e.,：Different temperature
Corresponding different value.
Here, it is necessary to which explanation, in fan work, the detection unit 51 detects the wind of the air outlet in real time
Pressure/air speed value；The determination unit 52 according to wind pressure/air speed value of the air outlet of detection, determines the air outlet in real time
During operation irregularity, trigger the clearing cell 53 and remove barrier at the air outlet.
The optional speed of opposite direction can select as needed, such as：The controllable fan carries out opposite direction rotation at full speed
Turn, opposite direction rotation is carried out using the maximum (top) speed of the fan.
The fan opposite direction rotating time can be selected as needed, such as：1 minute etc..
The device can also include：Alarm Unit；Wherein,
The detection unit 51, is additionally operable to when the fan carries out the duration that the rotating duration arrival of opposite direction is set,
And after the control fan carries out positive direction rotation, wind pressure/air speed value of the air outlet of the fan is detected again；
The determination unit 52, is additionally operable to wind pressure/wind of the air outlet of the detection of the air outlet according to detection
Speed value, when determining the air outlet operation irregularity, triggers the Alarm Unit；
The Alarm Unit, after the triggering for receiving the determination unit 52, carries out the alarm of the air outlet blocking,
So that maintenance personnel can carry out troubleshooting, failure probability is reduced, so as to improve the stability of the system using fan.
Here, the positive direction refers to：The direction of rotation during fan work；Correspondingly, the opposite direction refers to：With
The opposite direction in direction of rotation during the fan work.
During practical application, the fan can be controlled to carry out the rotating rotating speed of positive direction corresponding under normal circumstances for fan
Rotating speed.
Fan control device provided in an embodiment of the present invention, suitable for BBU, can be applicable to other need to use fan
Equipment, such as：Server, host device, Mass Storage Unit etc..
During practical application, the detection unit 51 can be by the wind pressure in fan control device/wind speed measurement sensor Lai real
Existing, the determination unit 52 and the clearing cell 53 can be by central processing unit (CPU, the Central in fan control device
Processing Unit), micro-control unit (MCU, Micro Control Unit), digital signal processor (DSP,
Digital Signal Processor) or programmable logic array (FPGA, Field-Programmable Gate
Array) realize；The Alarm Unit can be realized by CPU, MCU, DSP or FPGA combination display in fan control device.
Fan control device provided in an embodiment of the present invention, during fan work, the detection unit 51 detects the fan
Air outlet wind pressure/air speed value；The determination unit 52 determines institute according to wind pressure/air speed value of the air outlet of detection
When stating air outlet operation irregularity, trigger the clearing cell 53 and control the fan to carry out opposite direction rotation, so that the outlet air
Barrier at mouthful is removed, in this way, the barrier of fan outlet can be removed automatically and efficiently, is avoided since air outlet blocks
Caused poor heat radiation and cause the problem of excessive using the temperature of the equipment of fan, so as to ensure that the use of the equipment
Service life, and reduce the power consumption of the equipment.
When the fan, which carries out the rotating duration of opposite direction, reaches the duration set, the detection unit 51 controls described
Fan carries out positive direction rotation, and detects wind pressure/air speed value of the air outlet of the fan again；52 basis of determination unit
Wind pressure/air speed value of the air outlet of the detection of the air outlet of detection, when determining the air outlet operation irregularity, triggering
The Alarm Unit carries out the alarm that the air outlet is blocked, and so that maintenance personnel can carry out troubleshooting, reduces failure
Probability, so as to improve the stability of the system using fan.
It should be understood by those skilled in the art that, the embodiment of the present invention can be provided as method, system or computer program
Product.Therefore, the shape of the embodiment in terms of the present invention can use hardware embodiment, software implementation or combination software and hardware
Formula.Moreover, the present invention can use the computer for wherein including computer usable program code in one or more to use storage
The form for the computer program product that medium is implemented on (including but not limited to magnetic disk storage and optical memory etc.).
The present invention be with reference to according to the method for the embodiment of the present invention, the flow of equipment (system) and computer program product
Figure and/or block diagram describe.It should be understood that it can be realized by computer program instructions every first-class in flowchart and/or the block diagram
The combination of flow and/or square frame in journey and/or square frame and flowchart and/or the block diagram.These computer programs can be provided
The processors of all-purpose computer, special purpose computer, Embedded Processor or other programmable data processing devices is instructed to produce
A raw machine so that the instruction performed by computer or the processor of other programmable data processing devices, which produces, to be used in fact
The device for the function of being specified in present one flow of flow chart or one square frame of multiple flows and/or block diagram or multiple square frames.
These computer program instructions, which may also be stored in, can guide computer or other programmable data processing devices with spy
Determine in the computer-readable memory that mode works so that the instruction being stored in the computer-readable memory, which produces, to be included referring to
Make the manufacture of device, the command device realize in one flow of flow chart or multiple flows and/or one square frame of block diagram or
The function of being specified in multiple square frames.
These computer program instructions can be also loaded into computer or other programmable data processing devices so that counted
Series of operation steps is performed on calculation machine or other programmable devices to produce computer implemented processing, thus in computer or
The instruction performed on other programmable devices is provided and is used for realization in one flow of flow chart or multiple flows and/or block diagram one
The step of function of being specified in a square frame or multiple square frames.
The foregoing is only a preferred embodiment of the present invention, is not intended to limit the scope of the present invention.
Claims (6)
- A kind of 1. control method for fan, it is characterised in that the described method includes：During fan work, wind pressure/air speed value of the air outlet of the fan is detected；According to wind pressure/air speed value of the air outlet of detection and the wind pressure/air speed value standard value in the air port prestored, determine During the air outlet operation irregularity, the fan is controlled to carry out opposite direction rotation, so that the barrier at the air outlet is removed； Wherein, the wind pressure in the air port/air speed value standard value is according to the ambient temperature value detected, and the adjustment of temperature and rotating speed Strategy, obtains when have adjusted normal work after the rotating speed of fan；When the fan, which carries out the rotating duration of opposite direction, reaches the duration set, the fan is controlled to carry out positive direction rotation Turn, and detect wind pressure/air speed value of the air outlet of the fan again；According to wind pressure/air speed value of the air outlet of the detection of the air outlet of detection, determine that the air outlet work is different Chang Shi, carries out the alarm of the air outlet blocking.
- It is 2. according to the method described in claim 1, it is characterized in that, described according to the wind pressure/air speed value for detecting the air outlet Wind pressure/air speed value the standard value in air port with prestoring, determines the air outlet operation irregularity, including：By wind pressure/air speed value of the air outlet of the detection with storage fan air port normal work caused by wind pressure/ Wind speed standard value is compared, and determines the wind pressure value of the detection not in the wind pressure/wind speed standard value range.
- 3. according to the method described in claim 2, it is characterized in that, wind pressure/wind of the air outlet by the detection Fast value determines the wind of the detection compared with wind pressure/wind speed standard value caused by the fan air port normal work stored Pressure/air speed value in the wind pressure/wind speed standard value range, does not specifically include：The wind pressure/wind speed standard value is subtracted to wind pressure/air speed value of the air outlet of the detection, obtains the first value；Described first is worth divided by the wind pressure/wind speed standard value, obtains the second value；By the second value and default threshold value comparison, and determine that the second value is more than the threshold value.
- 4. a kind of fan control device, it is characterised in that described device includes：Alarm Unit, detection unit, determination unit and clear Except unit；Wherein,The detection unit, during for fan work, detects wind pressure/air speed value of the air outlet of the fan；The determination unit, for the air outlet according to detection wind pressure/air speed value and the air port that prestores wind pressure/ Air speed value standard value, when determining the air outlet operation irregularity, triggers the clearing cell；Wherein, the wind pressure/wind in the air port Fast value standard value is the ambient temperature value that basis detects, and the adjustable strategies of temperature and rotating speed, when have adjusted normal work Obtained after the rotating speed of fan；The clearing cell, after the triggering for receiving the determination unit, controls the fan to carry out opposite direction rotation, so that Barrier at the air outlet is removed；The detection unit, is additionally operable to when the fan carries out the duration that the rotating duration arrival of opposite direction is set, and controls After the fan carries out positive direction rotation, wind pressure/air speed value of the air outlet of the fan is detected again；The determination unit, is additionally operable to wind pressure/air speed value of the air outlet of the detection of the air outlet according to detection, really During the fixed air outlet operation irregularity, the Alarm Unit is triggered；The Alarm Unit, after the triggering for receiving the determination unit, carries out the alarm of the air outlet blocking.
- 5. device according to claim 4, it is characterised in that the determination unit includes：Comparison module and determining module； Wherein,The comparison module, for wind pressure/air speed value of the air outlet of the detection and the fan air port of storage is normal Wind pressure caused by work/wind speed standard value is compared, and comparative result is sent to the determining module；The determining module, after the comparative result for receiving the comparison module, determines the wind pressure value of the detection not in institute State in wind pressure/wind speed standard value range.
- 6. device according to claim 5, it is characterised in that the determining module includes：First computing module, the second meter Calculate module and determination sub-module；Wherein,First computing module, the wind pressure of the air outlet for the wind pressure/wind speed standard value to be subtracted to the detection/ Air speed value, obtains the first value；Second computing module, for described first to be worth divided by the wind pressure/wind speed standard value, obtains the second value；The determination sub-module, for by the second value and default threshold value comparison, and it is described to determine that the second value is more than Threshold value.
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| CN105840540A (en) * | 2016-04-06 | 2016-08-10 | 柳州定店科技有限公司 | Method for controlling rotating speed of intelligent electric fan |
| CN105871757A (en) * | 2016-05-31 | 2016-08-17 | 深圳市双赢伟业科技股份有限公司 | Method and device for detecting blockage of air outlet of exchanger and exchanger |
| CN106843429A (en) * | 2017-02-10 | 2017-06-13 | 联想(北京)有限公司 | A kind of cooling system, electronic equipment and heat dissipating method |
| CN107543286B (en) * | 2017-08-24 | 2020-11-03 | 宁波德业变频技术有限公司 | Dehumidifier air outlet cover detection device and detection method |
| CN108981084A (en) * | 2018-07-02 | 2018-12-11 | 珠海格力电器股份有限公司 | Wind outlet panel and air conditioner |
| CN109654055B (en) * | 2018-12-19 | 2020-01-07 | 珠海格力电器股份有限公司 | Detection method and detection device for wind pressure abnormity, fan and air conditioner |
| CN110403531B (en) * | 2019-07-31 | 2021-03-19 | 联想(北京)有限公司 | Fault processing method and sweeper |
| CN111140525A (en) * | 2019-11-19 | 2020-05-12 | 潍柴动力股份有限公司 | Control method, control device and control system for electronic fan in vehicle |
| CN112377443B (en) * | 2020-11-11 | 2021-06-25 | 深圳市美兆环境股份有限公司 | Obstruction avoiding device for ventilator of air outlet of fresh air machine of air purification equipment |
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