CN110196608A - A kind of heat dissipation of terminal device and the cooling control method based on heat dissipation of terminal device - Google Patents
A kind of heat dissipation of terminal device and the cooling control method based on heat dissipation of terminal device Download PDFInfo
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- CN110196608A CN110196608A CN201810162846.3A CN201810162846A CN110196608A CN 110196608 A CN110196608 A CN 110196608A CN 201810162846 A CN201810162846 A CN 201810162846A CN 110196608 A CN110196608 A CN 110196608A
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- auxiliary blower
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
- G05D23/00—Control of temperature
- G05D23/19—Control of temperature characterised by the use of electric means
- G05D23/20—Control of temperature characterised by the use of electric means with sensing elements having variation of electric or magnetic properties with change of temperature
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Abstract
The embodiment of the invention provides a kind of heat dissipation of terminal device and the cooling control method based on heat dissipation of terminal device, wherein, heat dissipation of terminal device includes processor, temperature sensor, noise transducer, main fan, multiple auxiliary blowers and multiple control circuits, processor is connect with each control circuit in temperature sensor, noise transducer and multiple control circuits respectively, for generating the on-off of control signal control control circuit according to temperature value and noise figure；Each auxiliary blower in main fan and multiple auxiliary blowers is connect with a control circuit respectively, it is adjusted with controlling unlatching, closing and the revolving speed of each auxiliary blower in main fan and multiple auxiliary blowers by control circuit, processor controls the open and close of main fan and auxiliary blower according to temperature value and noise figure, and the revolving speed of auxiliary blower can be adjusted according to noise figure to reduce noise, it can either guarantee the heat dissipation effect of view networked terminals, and can be by noise control within a preset range.
Description
Technical field
The present invention relates to view networking technology fields, more particularly to a kind of heat dissipation of terminal device and are based on heat dissipation of terminal device
Cooling control method.
Background technique
With the fast development of the network technology, life of the two-way communications such as video conference, video teaching, video calling in user
Living, work, study etc. are widely available.
Heat dissipation inside equipment is carried out when forward sight networked terminals generally use fan, and one may depending on networked terminals
One main fan is set heat dissipation and multiple auxiliary blowers are carried out to processor and integral heat sink, and main wind are carried out to view networked terminals
Fan and auxiliary blower are worked with fixed revolving speed, and multiple fans carry out heat dissipation work simultaneously and produce bigger make an uproar
Sound, especially when fan has used a period of time to cannot get good maintenance, noise is more prominent, and such noise can be fed
Meeting or call in row interfere, therefore, for having in the view networked terminals of multiple fans, multiple fans while work
When making, noise how is reduced as far as possible in the case where user's normal use equipment as problem in the urgent need to address.
Summary of the invention
In view of the above problems, it proposes the embodiment of the present invention and overcomes the above problem or at least partly in order to provide one kind
A kind of heat dissipation of terminal device to solve the above problems and the cooling control method based on heat dissipation of terminal device.
To solve the above-mentioned problems, the embodiment of the invention discloses a kind of heat dissipation of terminal devices, are applied to view networked terminals
In, including processor, temperature sensor, noise transducer, main fan, multiple auxiliary blowers and multiple control circuits,
The temperature sensor and the noise transducer are fixed on inside the view networked terminals, for acquiring the view
Temperature value and noise figure inside networked terminals；
The processor respectively with each control in the temperature sensor, noise transducer and the multiple control circuit
Circuit connection processed, for according to the collected temperature value of the temperature sensor and the collected noise of the noise transducer
Value generates the on-off that control signal controls the control circuit；
Each auxiliary blower in the main fan and the multiple auxiliary blower respectively with a control circuit
Connection, to control opening for each auxiliary blower in the main fan and the multiple auxiliary blower by the control circuit
Open, close and revolving speed adjustment.
Optionally, the control circuit includes power supply, first resistor, second resistance, first capacitor, the second capacitor and three poles
Pipe, the base stage of the triode be connected to the processor by the first capacitor and by the first resistor with it is described
Power supply connection, the collector of the triode are connect by the second resistance with the power supply, the emitter of the triode
One end of ground connection, the main fan is connect by second capacitor with the collector of the triode, the other end and described three
The emitter of pole pipe connects.
Optionally, the temperature sensor includes power port, grounding ports and signal port, the power port and electricity
Source connection, the grounding ports ground connection, the signal port are connected to the processor.
Optionally, the multiple control circuit is connected to the processor by GPIO interface.
To solve the above-mentioned problems, the embodiment of the invention discloses a kind of radiating control sides based on heat dissipation of terminal device
Method, applied to the view networked terminals with heat dissipation of terminal device, the heat dissipation of terminal device include processor, temperature sensor,
Noise transducer, main fan, multiple auxiliary blowers and multiple control circuits, in the main fan and the multiple auxiliary blower
Each auxiliary blower passes through the control circuit and is connected to the processor, which comprises
The temperature value and noise figure of the view networked terminals are obtained by the temperature sensor and the noise transducer；
According to the temperature value and/or the noise figure, by the control circuit to the main fan and/or multiple auxiliary
Fan is helped to be controlled.
Optionally, the temperature value is the temperature value of processor, described according to the temperature value and/or the noise figure,
The step of being controlled by the control circuit the main fan and/or multiple auxiliary blowers include:
When the temperature value is greater than first threshold, first control signal is generated；
The first control signal is sent to the control circuit connecting with the main fan, the control circuit be used for according to
The main fan is driven to start to rotate according to the first control signal.
Optionally, described according to the temperature value and/or the noise figure, by the control circuit to the main fan
And/or multiple auxiliary blowers the step of being controlled, further includes:
When the temperature value is greater than secure threshold, the rate of rise of the temperature value is obtained according to predetermined period, it is described
Secure threshold is greater than the first threshold；
When the rate of rise reduces, second control signal is generated；
The second control signal is sent to the control circuit connecting with the main fan, the control circuit be used for according to
The revolving speed of the main fan is controlled according to the second control signal, until the temperature value is less than the secure threshold；
Stopping is adjusted the revolving speed of the main fan.
Optionally, the temperature value includes the temperature value regarded inside networked terminals, described according to the temperature value and/or institute
The step of stating noise figure, the main fan and/or multiple auxiliary blowers controlled by the control circuit, further includes:
When stopping being adjusted the revolving speed of the main fan, generates third and control signal；
Third control signal is sent to the control electricity connecting with auxiliary blower each in the multiple auxiliary blower
Road, the control circuit connecting with each auxiliary blower are used to drive the auxiliary being attached thereto according to third control signal
Fan starts to rotate.
Optionally, the temperature value includes the temperature value regarded inside networked terminals, described according to the temperature value and/or institute
The step of stating noise figure, the main fan and/or multiple auxiliary blowers controlled by the control circuit, further includes:
When the temperature value regarded inside networked terminals is within the scope of preset temperature value, judge whether the noise figure is big
In default noise threshold；
If so, obtaining the noise information of each auxiliary blower, the noise information includes each auxiliary blower in revolving speed phase
Noise figure simultaneously；
Determine the maximum auxiliary blower of noise figure when revolving speed is identical；
Generate the 4th control signal；
The 4th control signal is sent to the control circuit connecting with the maximum auxiliary blower of noise figure, the control
Circuit is used to reduce the revolving speed of the maximum auxiliary blower of the noise figure according to the 4th control signal, alternatively, described in driving
The maximum auxiliary blower of noise figure stops rotating.
Optionally, described according to the temperature value and/or the noise figure, by the control circuit to the main fan
And/or multiple auxiliary blowers the step of being controlled, further includes:
Determine the smallest auxiliary blower of noise figure when revolving speed is identical；
Generate the 5th control signal；
The 5th control signal is sent to the control circuit connecting with the smallest auxiliary blower of noise figure, the control
Circuit is used to improve the revolving speed of the smallest auxiliary blower of the noise figure according to the 5th control signal.
The embodiment of the present invention includes following advantages:
The heat dissipation of terminal device of the embodiment of the present invention, main fan and auxiliary blower pass through control circuit and processor connects
It connects, processor can control the open and close of main fan and auxiliary blower according to temperature value and noise figure, and being capable of basis
The revolving speed of noise figure adjustment auxiliary blower can either guarantee the heat dissipation effect of terminal to reduce noise, and can be by noise control
Within a preset range.
Detailed description of the invention
Fig. 1 is a kind of structural schematic diagram of heat dissipation of terminal device of the embodiment of the present invention；
Fig. 2 is the structural schematic diagram of control circuit in a kind of heat dissipation of terminal device of the embodiment of the present invention；
Fig. 3 is the temperature sensor of the embodiment of the present invention and the connection schematic diagram of processor；
Fig. 4 is a kind of step flow chart of cooling control method based on heat dissipation of terminal device of the embodiment of the present invention.
Specific embodiment
In order to make the foregoing objectives, features and advantages of the present invention clearer and more comprehensible, with reference to the accompanying drawing and specific real
Applying mode, the present invention is described in further detail.
Referring to Fig.1, a kind of structural schematic diagram of heat dissipation of terminal device of the embodiment of the present invention, the embodiment of the present invention are shown
Heat dissipation of terminal device be applied in view networked terminals, including processor 10, temperature sensor 20, noise transducer 30, main wind
Fan 50, multiple auxiliary blowers 60 and multiple control circuits 40.
In the embodiment of the present invention, depending on networked terminals may include set-top box, decoder, depending on networked server etc. depending on networking set
It is standby.
Temperature sensor (Temperature Transducer), which can be, can experience temperature and be converted into available output letter
Number sensor, contact and non-contact temperature sensor can be divided by measurement method, according to sensor material and electronics member
Part characteristic can be divided into thermal resistance and thermocouple temperature sensor, and in the embodiment of the present invention, temperature sensor may include built-in
The temperature sensor inside temperature sensor and view networked terminals inside processor, such as passed as the temperature on the inside of cabinet
Sensor.
Noise transducer can be sound transducer, be equivalent to a microphone (microphone), noise transducer is due to sensing
A condenser type Electret condenser microphone to sound sensitive built in device, sound wave vibrate the electret film in microphone, lead to capacitor
Variation, and generate the small voltage of variation of being corresponding to it and pass through the strong of electric signal to realize the conversion of sound wave to electric signal
The noise figure of weak available noise, i.e. decibel value.
In practical applications, temperature sensor 20 and noise transducer 30 can be fixed on inside view networked terminals, be used for
Temperature value and noise figure inside acquisition view networked terminals, such as temperature sensor 20 can be fixed on the inside of cabinet, certainly also
It can be processor 10 and be built-in with temperature sensor.
As shown in Figure 1, processor 10 respectively with it is every in temperature sensor 20, noise transducer 30 and multiple control circuits
A control circuit 40 connects, for according to the collected temperature value of temperature sensor 20 and noise transducer 30 is collected makes an uproar
Sound value generates the on-off of control signal control control circuit 40.
Each auxiliary blower 60 in main fan 50 and multiple auxiliary blowers is connect with a control circuit 40 respectively, with
Unlatching, closing and the revolving speed of each auxiliary blower 60 in main fan 50 and multiple auxiliary blowers are controlled by control circuit 40
Adjustment.
In the embodiment of the present invention, main fan 50, which can be, carries out cooling fan to processor 10, and auxiliary blower 60 can be with
To be multiple, a for example, array fan can will regard the heat extraction inside networked terminals into external environment.
In practical applications, processor 10 can be by control signal drive control circuit 40, such as passes through different controls
Signal control circuit processed is turned on or off, so that main fan 50 or auxiliary blower 60 are in work and inoperative shape
State, or the duty ratio that control circuit opens and closes is adjusted by control signal, to adjust main fan 50 or auxiliary wind
The revolving speed etc. of fan 60.
10 inside of processor is equipped with GPIO chip outside, can connect multiple control electricity by the interface on GPIO chip
Road 40, temperature sensor 20 and noise transducer 30 etc., to reduce the pin number of processor 10.
As shown in figure 3, temperature sensor 20 include power port 1, grounding ports 3 and signal port 2, power port 1 with
Power supply VCC connection, grounding ports 3 are grounded, and signal port 2 is connect with processor 10, and preferably signal port 2 passes through GPIO interface
It is connect with processor 10.
Multiple temperature thresholds and noise threshold can be set inside processor 10, when collected temperature value and noise figure
In corresponding range, different control signals is generated to control main fan and auxiliary blower, so that view networking
Terminal had not only had good heat dissipation performance, but also made noise caused by fan cooling within a preset range.
As shown in Fig. 2, in one preferred embodiment of the invention, control circuit 40 includes power supply VCC, first resistor
R1, second resistance R2, first capacitor C1, the second capacitor C2 and triode Q1, triode Q1 base stage by first capacitor C1 with
The connection of processor 10 and connect with power supply VCC by first resistor R1, the collector of triode Q1 pass through second resistance R2 and
Power supply VCC connection, the emitter ground connection of triode Q1, one end of main fan 50 passes through the current collection of the second capacitor C2 and triode Q1
Pole connection, the other end are connect with the emitter of triode Q1.
Above-mentioned control circuit 40 is equally applicable to connect with auxiliary blower 60, and main fan 50 is replaced with auxiliary blower 60 i.e.
Can, the embodiment of the present invention is no longer illustrated this.
The working principle of control circuit 40 is illustrated below:
As shown in Fig. 2, each point current potential is constant, unchanged amount in circuit, capacitor C1 when processor 10 exports low level 0
Open circuit, 50 no power of main fan are equivalent to capacitor C2；When processor 10 exports high level 1, each point potential change, capacitor C1
It is equivalent to short circuit, triode Q1 conducting with capacitor C2, main fan 50 is powered.
Therefore, it can be generated by PWM (the Pulse Width Modulation) controller being arranged inside processor 10
The pulse-width signal of different control signals or different duty, so that it may realize the closing to main fan 50, open and
Revolving speed adjustment.
The heat dissipation of terminal device of the embodiment of the present invention, main fan and auxiliary blower pass through control circuit and processor connects
It connects, processor controls the open and close of main fan and auxiliary blower according to temperature value and noise figure, and can be according to noise
Value adjusts the revolving speed of auxiliary blower to reduce noise, can either guarantee the heat dissipation effect for regarding networked terminals, and can be by noise control
System is within a preset range.
As shown in figure 4, being applied to the embodiment of the invention provides a kind of cooling control method based on heat dissipation of terminal device
View networked terminals with heat dissipation of terminal device, the heat dissipation of terminal device include processor, temperature sensor, noise sensing
Device, main fan, multiple auxiliary blowers and multiple control circuits, each auxiliary in the main fan and the multiple auxiliary blower
Fan passes through the control circuit and is connected to the processor, which comprises
Step 101, the temperature value of the view networked terminals is obtained by the temperature sensor and the noise transducer
And noise figure.
As shown in Figure 1, the embodiment of the present invention includes heat dissipation of terminal device depending on networked terminals, which includes
Processor 10, temperature sensor 20, noise transducer 30, main fan 50, multiple auxiliary blowers 60 and multiple control circuits 40, it is main
Each auxiliary blower 60 in fan 50 and multiple auxiliary blowers is connect by a control circuit 40 with processor 10.
Actually should in, regard the highest device of usual calorific value in networked terminals as the processor that carries out high frequency operation
10, therefore the temperature value of processor 10 can be obtained by temperature sensor 20, it can also be obtained certainly by temperature sensor 20
The temperature value inside view networked terminals is taken, while can also be obtained by noise transducer 30 especially main inside view networked terminals
The noise figure of fan 50 and auxiliary blower 60.
Step 102, according to the temperature value and/or the noise figure, by the control circuit to the main fan and/
Or multiple auxiliary blowers are controlled.
In practical applications, processor 10 or the memory depending on networked terminals are stored with multiple temperature thresholds or noise
Threshold value, when temperature value or noise figure reach respective threshold, processor 10 generates different control signals and is sent to control
Circuit 40, to control main fan 50 and/or auxiliary blower 60.
In one preferred embodiment of the invention, temperature sensor 20 can be the temperature sensing built in processor 10
Device, then temperature value is the temperature value of processor, described according to the temperature value and/or the noise figure, and it is electric to pass through the control
It may include following sub-step that road, which carries out control to the main fan and/or multiple auxiliary blowers:
Sub-step S11 generates first control signal when the temperature value is greater than first threshold.
The first control signal is sent to the control circuit connecting with the main fan, the control by sub-step S12
Circuit is used to drive the main fan to start to rotate according to the first control signal.
As shown in Figure 1, calorific value is higher, and 10 temperature of processor due to the element that processor 10 is high-frequency work
The performance of processor 10 is influenced whether when higher, therefore first threshold can be set according to the actual situation, when the temperature of processor 10
When degree is greater than first threshold, radiate.
Specifically, processor 10 is internally provided with PWM controller, and various pulse width modulation can be generated in PWM controller
Signal, such as the first control signal that waveform is square wave is generated, first control signal can be high level signal, the i.e. square wave
Period is endless and to take the wave crest of square wave be high level.The first control signal is sent to control by corresponding pin
After circuit 40, capacitor C1 and capacitor C2 short circuit, triode Q1 conducting, main fan 50, which is powered to rotating, radiates to processor 10.
In the embodiment of the present invention, when the temperature of processor is greater than first threshold, generates first control signal and pass through control
The problem of circuit drives main fan radiates to processor, avoids processor heating too fast influence processor performance, and phase
For be switched in the prior art i.e. starting main fan radiate, can reduce temperature of processor it is lower when making an uproar depending on networked terminals
Sound.
It is described according to the temperature value and/or the noise figure in another preferred embodiment of the invention, by described
Control circuit, which controls the main fan and/or multiple auxiliary blowers, to include following sub-step:
Sub-step S13 obtains the growth of the temperature value according to predetermined period when the temperature value is greater than secure threshold
Rate, the secure threshold are greater than the first threshold；
Sub-step S14 generates second control signal when the rate of rise reduces；
The second control signal is sent to the control circuit connecting with the main fan, the control by sub-step S15
Circuit is used to control the revolving speed of the main fan according to the second control signal, until the temperature value is less than the safety threshold
Value；
Sub-step S16, stopping are adjusted the revolving speed of the main fan.
In practical applications, in order to guarantee that processor 10 is unlikely to temperature height and damages, it is provided with a secure threshold, the peace
Full threshold value is greater than first threshold, when temperature value is greater than the secure threshold, obtains the rate of rise of temperature value, such as obtain per second
In rate of rise etc., rate of rise is ascending, then descending process, for example, in master under main fan effect
Fan starts rotation initial stage, temperature value be it is zooming, at this time the rate of rise of temperature value be by the small process being gradually increased,
The ability that i.e. heat-sinking capability of main fan generates heat lower than processor is handled then under the lasting heat spreading function of main fan
The temperature value rising of device tends to slowly, and after rate of rise reaches maximum value, rate of rise starts to become smaller, but temperature value is at this time
It is possible that still rise, but rising is slow, at this point it is possible to the revolving speed of main fan is suitably reduced, it is whole to reduce view networking
The noise at end, until the rate of rise of temperature value is 0, temperature value stops carrying out the revolving speed of main fan after being reduced to secure threshold
Adjustment.
Specifically, PWM controller can adjust in square wave on the basis of first control signal corresponding square-wave signal
The period of high level obtains second control signal to reduce duty ratio, so that the time that main fan is powered is reduced, to reach
The purpose for adjusting revolving speed, in order to keep the revolving speed of main fan, maintains the second control at this time when temperature value is lower than secure threshold
Signal is constant, and stopping is adjusted the revolving speed of main fan.
In the embodiment of the present invention, the revolving speed of main fan can be adjusted according to the temperature variations of processor, at guarantee
Under the premise of managing device heat dissipation effect, optimize the revolving speed of main fan, to reduce the noise that main fan rotation generates.
In an embodiment of the present invention, depending on inside networked terminals in addition to processor generate heat other than, other devices
Heat is generated, is transmitted in order to guarantee to regard the heat inside networked terminals to external, the temperature value includes that view networking is whole
Temperature value inside end, it is described according to the temperature value and/or the noise figure, by the control circuit to the main fan
And/or it further includes following sub-step that multiple auxiliary blowers, which carry out control:
Sub-step S18 generates third and controls signal when stopping being adjusted the revolving speed of the main fan；
Third control signal is sent to and connects with auxiliary blower each in the multiple auxiliary blower by sub-step S19
The control circuit connect, the control circuit connecting with each auxiliary blower are used for according to the driving of third control signal therewith
The auxiliary blower of connection starts to rotate.
In practical applications, main fan can be set in the top of processor, only radiate to processor, by processor
The heat of generation is dispersed into the inside of view networked terminals, this meeting depending on the temperature value inside networked terminals so that be gradually increasing, simultaneously
Other devices also generate heat, in order to enable processor has good dissipating-heat environment, view can be networked by auxiliary blower
The heat of terminal inner is pumped to view networked terminals, such as heat release hole can be arranged on the cabinet depending on networked terminals, is dissipated
Auxiliary blower is set at hot hole, so that forming convection current with external air inside view networked terminals, is reduced inside view networked terminals
Temperature value.
Specifically, after stopping being adjusted main fan, third can be generated by PWM controller and controls signal, it will
Third control signal be sent to control circuit connect with auxiliary blower, to drive auxiliary blower to rotate, third control signal and
First control signal is similar, and details are not described herein.
Certainly, it is auxiliary can to touch PWM controller generation third control signal driving according to the actual situation by those skilled in the art
It helps fan to start rotation to radiate, and is not limited only to after stopping being adjusted main fan, for example, when view is networked eventually
When temperature value inside end is greater than preset threshold, i.e. starting auxiliary blower radiates, alternatively, temperature of processor is greater than safety threshold
Start auxiliary blower when value radiate etc..
In the embodiment of the present invention, auxiliary blower can be driven by control circuit after stopping being adjusted main fan
It radiates, it is ensured that the temperature inside view networked terminals, so that processor has good dissipating-heat environment, and relative to existing
There is the i.e. starting auxiliary blower of booting in technology to radiate, regards networked terminals when can reduce lower depending on networked terminals internal temperature
Noise.
In another preferred embodiment of the invention, the temperature value includes the temperature value regarded inside networked terminals, described
According to the temperature value and/or the noise figure, by the control circuit to the main fan and/or multiple auxiliary blowers into
Row control can also include following sub-step:
Sub-step S20 makes an uproar described in judgement when the temperature value regarded inside networked terminals is within the scope of preset temperature value
Whether sound value is greater than default noise threshold；
Sub-step S21, obtains the noise information of each auxiliary blower, and the noise information includes that each auxiliary blower is turning
Noise figure when speed is identical；
Sub-step S22 determines the maximum auxiliary blower of noise figure when revolving speed is identical；
Sub-step S23 generates the 4th control signal；
The 4th control signal is sent to the control electricity connecting with the maximum auxiliary blower of noise figure by sub-step S24
Road, the control circuit are used to reduce the revolving speed of the maximum auxiliary blower of the noise figure according to the 4th control signal, or
Person drives the maximum auxiliary blower of the noise figure to stop rotating.
Sub-step S25 determines the smallest auxiliary blower of noise figure when revolving speed is identical；
Sub-step S26 generates the 5th control signal；
The 5th control signal is sent to the control electricity connecting with the smallest auxiliary blower of noise figure by sub-step S27
Road, the control circuit are used to improve the revolving speed of the smallest auxiliary blower of the noise figure according to the 5th control signal.
In the embodiment of the present invention, the temperature values being provided with inside view networked terminals, such as upper threshold value and lower threshold value shape
At value range, lower threshold value can for temperature be greater than the lower threshold value when start auxiliary blower temperature value, upper threshold value can for temperature
When degree is less than the upper threshold value, temperature value that noise is adjusted.
When temperature value is within the scope of preset temperature value, the overall noise depending on networked terminals can be adjusted, specifically
For, noise figure can be obtained by noise transducer, and judge whether the noise figure is greater than noise threshold, if so, adjusting
Whole noise is compared if it is not, then continuing to obtain noise figure and noise threshold.
Noise information depending on can store each auxiliary blower in networked terminals, for example, the noise information can be it is auxiliary
When fan manufacturer being helped to test auxiliary blower, the noise figure of auxiliary blower when being rotated with fixed rotating speed, which can
It to be stored in the firmware of auxiliary blower, or is stored in and is regarded in networked terminals by personnel, noise information can also be each
When opening self-test depending on networked terminals, each auxiliary blower is successively operated, more by the noise information of noise transducer acquisition in real time
Newly in view networked terminals.Therefore the maximum auxiliary blower of noise figure can be got from memory, then generate the 4th control
Signal processed, by the control circuit being connect with the maximum auxiliary blower of noise figure, to the revolving speed of the maximum auxiliary blower of noise figure
It is adjusted, such as reduces duty ratio to reduce the revolving speed of the maximum auxiliary blower of noise figure, so that the noise of its generation is reduced,
Or output low level signal directly closes the maximum auxiliary blower of noise figure, to eliminate the noise of auxiliary blower generation.
Meanwhile in order to guarantee that the temperature inside depending on networked terminals will not reduce revolving speed due to the maximum auxiliary blower of noise figure
Or close and rise, the revolving speed of the smallest auxiliary blower of noise figure can be improved, to guarantee the temperature inside view networked terminals
Value within a preset range, specifically, can be generated the 5th control signal, pass through the control connecting with the smallest auxiliary blower of noise figure
Circuit processed improves revolving speed, such as improves duty ratio and improve revolving speed.
It in order to be more clearly illustrated to the embodiment of the present invention, is illustrated, includes the following steps: below in conjunction with example
S1, after regarding networked terminals booting, the temperature sensor built in processor obtains the temperature value of processor；
S2, when temperature value is greater than first threshold, processor generates first control signal and by connecting with main fan
Control circuit drives main fan to open, such as the duty of first control signal is not 100%, i.e., main fan at full speed to processor into
Row cooling；
S3, persistently increase in temperature value is greater than secure threshold, the rate of rise of monitoring temperature value, for example, at interval of 1 second
Temperature value monitoring is carried out, the temperature that the t1 moment is is A, and t1+1 moment temperature is B, then the rate of rise of temperature value is Z=(B-
A)/A；
S4 gradually reduces the duty ratio of first control signal when the value of Z starts to reduce, and generates second control signal, leads to
Crossing second control signal reduces the revolving speed of main fan, and until temperature value is less than secure threshold, stopping adjusts main fan；
S5 generates third and controls signal, auxiliary blower rotation is driven by the control circuit connecting with auxiliary blower, to whole
It is a to radiate depending on networked terminals, heat is discharged；
S6 obtains the temperature value inside view networked terminals by temperature sensor, and, it is made an uproar by noise transducer acquisition
Sound value；
S7, when being reduced within the scope of preset temperature value depending on the temperature value inside networked terminals, according to collected noise
Value, generating the 4th control signal reduces the maximum auxiliary blower of noise figure or closes the maximum auxiliary blower of noise figure, with drop
The noise of low view networked terminals；
S8 generates the 5th control signal by the control circuit connecting with the smallest auxiliary blower of noise figure and improves noise
It is worth the revolving speed of the smallest auxiliary blower, to guarantee the temperature value inside view networked terminals within a preset range.
In the examples described above, first control signal, second control signal, third control signal, the 4th control signal and the
Five control signals are square-wave signal or sinusoidal signal of various duty ratios etc., and duty ratio can be carried out by PWM controller
Adjustment.
In the embodiment of the present invention, when the temperature of processor is greater than first threshold, generates first control signal and pass through control
The problem of circuit drives main fan radiates to processor, avoids processor heating too fast influence processor performance, and phase
For be switched in the prior art i.e. starting main fan radiate, can reduce temperature of processor it is lower when making an uproar depending on networked terminals
Sound.
In the embodiment of the present invention, it can generate second control signal according to the temperature variations of processor and adjust main wind
The revolving speed of fan optimizes the revolving speed of main fan under the premise of guaranteeing processor heat dissipation effect, to reduce main fan rotation generation
Noise.
In the embodiment of the present invention, auxiliary blower can be driven by control circuit after stopping being adjusted main fan
It radiates, it is ensured that the temperature inside view networked terminals, so that processor has good dissipating-heat environment, and relative to existing
There is the i.e. starting auxiliary blower of booting in technology to radiate, regards networked terminals when can reduce lower depending on networked terminals internal temperature
Noise.
In the embodiment of the present invention, when regarding the temperature value inside networked terminals within a preset range, the 4th control can be passed through
Signal processed reduces the revolving speed of the maximum auxiliary blower of noise figure or closes the maximum auxiliary blower of noise figure, effectively reduces
Depending on the noise of networked terminals, while by the revolving speed of the 5th control signal raising the smallest auxiliary blower of noise figure, view ensure that
Temperature value inside networked terminals is within a preset range.
It should be noted that for simple description, therefore, it is stated as a series of action groups for embodiment of the method
It closes, but those skilled in the art should understand that, embodiment of that present invention are not limited by the describe sequence of actions, because according to
According to the embodiment of the present invention, some steps may be performed in other sequences or simultaneously.Secondly, those skilled in the art also should
Know, the embodiments described in the specification are all preferred embodiments, and the related movement not necessarily present invention is implemented
Necessary to example.
All the embodiments in this specification are described in a progressive manner, the highlights of each of the examples are with
The difference of other embodiments, the same or similar parts between the embodiments can be referred to each other.
It should be understood by those skilled in the art that, the embodiment of the embodiment of the present invention can provide as method, apparatus or calculate
Machine program product.Therefore, the embodiment of the present invention can be used complete hardware embodiment, complete software embodiment or combine software and
The form of the embodiment of hardware aspect.Moreover, the embodiment of the present invention can be used one or more wherein include computer can
With in the computer-usable storage medium (including but not limited to magnetic disk storage, CD-ROM, optical memory etc.) of program code
The form of the computer program product of implementation.
The embodiment of the present invention be referring to according to the method for the embodiment of the present invention, terminal device (system) and computer program
The flowchart and/or the block diagram of product describes.It should be understood that flowchart and/or the block diagram can be realized by computer program instructions
In each flow and/or block and flowchart and/or the block diagram in process and/or box combination.It can provide these
Computer program instructions are set to general purpose computer, special purpose computer, Embedded Processor or other programmable data processing terminals
Standby processor is to generate a machine, so that being held by the processor of computer or other programmable data processing terminal devices
Capable instruction generates for realizing in one or more flows of the flowchart and/or one or more blocks of the block diagram
The device of specified function.
These computer program instructions, which may also be stored in, is able to guide computer or other programmable data processing terminal devices
In computer-readable memory operate in a specific manner, so that instruction stored in the computer readable memory generates packet
The manufacture of command device is included, which realizes in one side of one or more flows of the flowchart and/or block diagram
The function of being specified in frame or multiple boxes.
These computer program instructions can also be loaded into computer or other programmable data processing terminal devices, so that
Series of operation steps are executed on computer or other programmable terminal equipments to generate computer implemented processing, thus
The instruction executed on computer or other programmable terminal equipments is provided for realizing in one or more flows of the flowchart
And/or in one or more blocks of the block diagram specify function the step of.
Although the preferred embodiment of the embodiment of the present invention has been described, once a person skilled in the art knows bases
This creative concept, then additional changes and modifications can be made to these embodiments.So the following claims are intended to be interpreted as
Including preferred embodiment and fall into all change and modification of range of embodiment of the invention.
Finally, it is to be noted that, herein, relational terms such as first and second and the like be used merely to by
One entity or operation are distinguished with another entity or operation, without necessarily requiring or implying these entities or operation
Between there are any actual relationship or orders.Moreover, the terms "include", "comprise" or its any other variant meaning
Covering non-exclusive inclusion, so that process, method, article or terminal device including a series of elements not only wrap
Those elements are included, but also including other elements that are not explicitly listed, or further includes for this process, method, article
Or the element that terminal device is intrinsic.In the absence of more restrictions, being wanted by what sentence "including a ..." limited
Element, it is not excluded that there is also other identical elements in process, method, article or the terminal device for including the element.
Cooling control method to a kind of heat dissipation of terminal device provided by the present invention and based on heat dissipation of terminal device above,
It is described in detail, used herein a specific example illustrates the principle and implementation of the invention, the above reality
The explanation for applying example is merely used to help understand method and its core concept of the invention；Meanwhile for the general technology of this field
Personnel, according to the thought of the present invention, there will be changes in the specific implementation manner and application range, in conclusion this theory
Bright book content should not be construed as limiting the invention.
Claims (10)
1. a kind of heat dissipation of terminal device is applied in view networked terminals, which is characterized in that including processor, temperature sensor, make an uproar
Sonic transducer, main fan, multiple auxiliary blowers and multiple control circuits,
The temperature sensor and the noise transducer are fixed on inside the view networked terminals, for acquiring the view networking
The temperature value and noise figure of terminal inner；
The processor is electric with each control in the temperature sensor, noise transducer and the multiple control circuit respectively
Road connection is used for according to the collected temperature value of the temperature sensor and the collected noise figure of the noise transducer,
Generate the on-off that control signal controls the control circuit；
Each auxiliary blower in the main fan and the multiple auxiliary blower is connect with a control circuit respectively,
To control the unlatching of each auxiliary blower in the main fan and the multiple auxiliary blower by the control circuit, close
And revolving speed adjustment.
2. heat dissipation of terminal device as described in claim 1, which is characterized in that the control circuit include power supply, first resistor,
The base stage of second resistance, first capacitor, the second capacitor and triode, the triode passes through the first capacitor and the processing
Device connection, and, it is connect by the first resistor with the power supply, the collector of the triode passes through the second resistance
Connect with the power supply, the emitter of triode ground connection, one end of the main fan by second capacitor with it is described
The collector of triode connects, and the other end is connect with the emitter of the triode.
3. heat dissipation of terminal device as claimed in claim 1 or 2, which is characterized in that the temperature sensor include power port,
Grounding ports and signal port, the power port connect to power supply, grounding ports ground connection, the signal port with it is described
Processor connection.
4. heat dissipation of terminal device as described in claim 1, which is characterized in that the multiple control circuit by GPIO interface with
The processor connection.
5. a kind of cooling control method based on heat dissipation of terminal device, which is characterized in that applied to heat dissipation of terminal device
Depending on networked terminals, the heat dissipation of terminal device includes processor, temperature sensor, noise transducer, main fan, multiple auxiliary wind
Fan and multiple control circuits, each auxiliary blower in the main fan and the multiple auxiliary blower pass through the control
Circuit processed is connected to the processor, which comprises
The temperature value and noise figure of the view networked terminals are obtained by the temperature sensor and the noise transducer；
According to the temperature value and/or the noise figure, by the control circuit to the main fan and/or multiple auxiliary wind
Fan is controlled.
6. cooling control method as claimed in claim 5, which is characterized in that the temperature value is the temperature value of processor, institute
It states according to the temperature value and/or the noise figure, by the control circuit to the main fan and/or multiple auxiliary blowers
The step of being controlled include:
When the temperature value is greater than first threshold, first control signal is generated；
The first control signal is sent to the control circuit connecting with the main fan, the control circuit is used for according to institute
It states first control signal and drives the main fan rotation.
7. cooling control method as claimed in claim 6, which is characterized in that described according to the temperature value and/or described to make an uproar
Sound value, the step of control by the control circuit the main fan and/or multiple auxiliary blowers, further includes:
When the temperature value is greater than secure threshold, the rate of rise of the temperature value, the safety are obtained according to predetermined period
Threshold value is greater than the first threshold；
When the rate of rise reduces, second control signal is generated；
The second control signal is sent to the control circuit connecting with the main fan, the control circuit is used for according to institute
The revolving speed that second control signal controls the main fan is stated, until the temperature value is less than the secure threshold；
Stopping is adjusted the revolving speed of the main fan.
8. cooling control method as claimed in claim 7, which is characterized in that the temperature value includes inside view networked terminals
Temperature value, it is described according to the temperature value and/or the noise figure, by the control circuit to the main fan and/or more
The step of a auxiliary blower is controlled, further includes:
When stopping being adjusted the revolving speed of the main fan, generates third and control signal；
Third control signal is sent to the control circuit connecting with auxiliary blower each in the multiple auxiliary blower, institute
The control circuit connecting with each auxiliary blower is stated to be used to drive the auxiliary blower being attached thereto according to third control signal
Start to rotate.
9. such as the described in any item cooling control methods of claim 5-8, which is characterized in that the temperature value includes that view networking is whole
Temperature value inside end, it is described according to the temperature value and/or the noise figure, by the control circuit to the main fan
And/or multiple auxiliary blowers the step of being controlled, further includes:
When the temperature value regarded inside networked terminals is within the scope of preset temperature value, it is pre- to judge whether the noise figure is greater than
If noise threshold；
If so, obtaining the noise information of each auxiliary blower, the noise information includes each auxiliary blower when revolving speed is identical
Noise figure；
Determine the maximum auxiliary blower of noise figure when revolving speed is identical；
Generate the 4th control signal；
The 4th control signal is sent to the control circuit connecting with the maximum auxiliary blower of noise figure, the control circuit
For reducing the revolving speed of the maximum auxiliary blower of the noise figure according to the 4th control signal, alternatively, driving the noise
It is worth maximum auxiliary blower to stop rotating.
10. cooling control method as claimed in claim 9, which is characterized in that described according to the temperature value and/or described to make an uproar
Sound value, the step of control by the control circuit the main fan and/or multiple auxiliary blowers, further includes:
Determine the smallest auxiliary blower of noise figure when revolving speed is identical；
Generate the 5th control signal；
The 5th control signal is sent to the control circuit connecting with the smallest auxiliary blower of noise figure, the control circuit
For improving the revolving speed of the smallest auxiliary blower of the noise figure according to the 5th control signal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810162846.3A CN110196608A (en) | 2018-02-26 | 2018-02-26 | A kind of heat dissipation of terminal device and the cooling control method based on heat dissipation of terminal device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810162846.3A CN110196608A (en) | 2018-02-26 | 2018-02-26 | A kind of heat dissipation of terminal device and the cooling control method based on heat dissipation of terminal device |
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| Publication Number | Publication Date |
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| CN110196608A true CN110196608A (en) | 2019-09-03 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810162846.3A Pending CN110196608A (en) | 2018-02-26 | 2018-02-26 | A kind of heat dissipation of terminal device and the cooling control method based on heat dissipation of terminal device |
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| CN112212969A (en) * | 2020-10-10 | 2021-01-12 | 安徽江淮汽车集团股份有限公司 | Noise sensor |
| CN112943663A (en) * | 2019-11-26 | 2021-06-11 | 佛山市云米电器科技有限公司 | Fan control method, system, fan and computer readable storage medium |
| CN112996341A (en) * | 2019-12-13 | 2021-06-18 | 北京小米移动软件有限公司 | Heat dissipation assembly and electronic equipment |
| TWI803300B (en) * | 2021-05-25 | 2023-05-21 | 英屬開曼群島商意騰科技股份有限公司 | Fan control system and method for noise cancellation |
| CN111885892B (en) * | 2020-08-03 | 2023-09-01 | 深圳市越宏普智能光电科技有限公司 | Heat dissipation control method, system and equipment of power adapter and readable storage medium |
| CN116877473A (en) * | 2023-08-18 | 2023-10-13 | 肇庆晟辉电子科技有限公司 | Cooling fan control system and control method |
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