CN103644136B - A kind of fan control system, system administration manager and fan - Google Patents
A kind of fan control system, system administration manager and fan Download PDFInfo
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- CN103644136B CN103644136B CN201310724039.3A CN201310724039A CN103644136B CN 103644136 B CN103644136 B CN 103644136B CN 201310724039 A CN201310724039 A CN 201310724039A CN 103644136 B CN103644136 B CN 103644136B
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Abstract
The present invention is applicable to communication equipment field, provides a kind of fan control system, system administration manager and fan; Wherein, this kind of fan control system, comprises system administration manager, comprises one or more fan interface, and comprises one or more fan, and described system administration manager is connected with a described fan by a described fan interface; Described system administration manager comprises SC system controller; Described fan comprises the drive circuit of drive motor, also comprises fan governor.And then for the radiating requirements of different communication equipment, SC system controller sends specification select command, to be switched to the fan specifications of coupling to fan governor; Then, under this fan specifications, SC system controller sends speed governing order to control rotation speed of the fan further, to finely control to fan governor; Thus effectively meeting the cooling requirements of different communication equipment, the working environment also for different temperatures adjusts rotation speed of the fan further, practical, also hommization more.
Description
Technical field
The invention belongs to communication equipment field, particularly relate to a kind of fan control system, system administration manager and fan.
Background technique
Communication network has oozed into daily life and work, has become indispensable existence.Communication network primarily of communications equipment compositions such as mobile communication equipment, internet communication equipment, thus realizes the data transmission between communications equipment, realizes phone and browses the business functions such as webpage.
Along with the traffic increases, communications equipment load increases, and fan often need be adopted to carry out internal heat dissipating to communications equipment.Because the power consumption of different communications equipments is different, needed for the amount of heat that sheds also different, thus the fan specifications selected is also different; Thus need for different communication equipment the fan specifications adopting coupling, cause getting more and more for the fan specifications of communications equipment heat radiation and number of fans, and fan mate coupling with communications equipment too strong.Therefore, be only applicable to the fan of the communications equipment mated, adaptability narrow range, multiplexing rate variance in many scene application of different communication equipment.
Summary of the invention
The object of the present invention is to provide a kind of fan control system, to solve the existing fan for communications equipment heat radiation, be only applicable to the problem of this communications equipment mated.
On the one hand, a kind of fan control system, comprises system administration manager, comprise one or more fan interface, and comprise one or more fan, described system administration manager is connected with a described fan by a described fan interface, described fan comprises the drive circuit of drive motor
Described system administration manager comprises:
SC system controller, is sent specification select command for the fan governor first comprised to described fan by described fan interface, then sends speed governing order by described fan interface to described fan governor;
Described fan comprises:
Described fan governor, be connected with described drive circuit, for first by specification select command described in described fan interface, fan specifications is selected according to described specification select command, described fan specifications according to selecting controls drive circuit, again by speed governing order described in described fan interface, select rotating speed according to described speed governing order in the speed range that described fan specifications provides, the rotating speed according to selecting controls described drive circuit.
In conjunction with first aspect, in the first possible implementation of first aspect, described system administration manager also comprises:
Ambient temperature detection circuit, be connected with described SC system controller, for detecting the ambient temperature in communications equipment, and described ambient temperature is sent to described SC system controller and determines whether to send described specification select command and/or described speed governing order to described fan governor according to described ambient temperature with described SC system controller.
In conjunction with the first possible implementation of first aspect or first aspect, in the implementation that the second of first aspect is possible, described fan also comprises: speed detect circuit, be connected with described fan governor, for detecting the rotating speed of described motor, the rotating speed detected is sent to described fan governor, with described fan governor according to described in the rotating speed that detects generate rotary speed information and described rotary speed information be sent to described SC system controller by described fan interface;
Described SC system controller, also sends described speed governing order for determining whether according to described rotary speed information to described fan governor.
In conjunction with first aspect or the first possible implementation of first aspect or the possible implementation of the second of first aspect, in the third possible implementation of first aspect, described SC system controller, also for receiving specification selection instruction and/or the speed-regulating instruction of upper-position unit, generate described specification select command according to described specification selection instruction and/or generate described speed governing order according to described speed-regulating instruction, also for described rotary speed information is sent to described upper-position unit.
Second aspect, a kind of system administration manager, described system administration manager is connected with one or more fan, wherein, described system administration manager is connected with a described fan by a fan interface, and described fan comprises the drive circuit of drive motor, and described system administration manager comprises:
SC system controller, fan governor for first being comprised to described fan by described fan interface sends specification select command, with described fan governor according to described specification select command selection fan specifications and according to the described fan specifications control drive circuit selected, speed governing order is sent to described fan governor again, to select rotating speed according to described speed governing order in the speed range that described fan specifications provides and to control described drive circuit according to the rotating speed selected by described fan interface.
In conjunction with second aspect, in the first possible implementation of second aspect, described system administration manager also comprises:
Ambient temperature detection circuit, be connected with described SC system controller, for detecting the ambient temperature in communications equipment, and described ambient temperature is sent to described SC system controller, determine whether to send described specification select command and/or described speed governing order to described fan governor according to described ambient temperature with described SC system controller.
In conjunction with the first possible implementation of second aspect or second aspect, in the implementation that the second of second aspect is possible, described system administration manager also comprises:
Described SC system controller, also for passing through described fan interface rotary speed information, determine whether to send described speed governing order to described fan governor according to described rotary speed information, described rotary speed information is generated according to the rotating speed that detects by described fan governor, described in the speed detect circuit that comprised by described fan of the rotating speed that detects detect and obtain.
In conjunction with second aspect or the first possible implementation of second aspect or the possible implementation of the second of second aspect, in the third possible implementation of second aspect, described SC system controller, also for receiving specification selection instruction and/or the speed-regulating instruction of upper-position unit, generate described specification select command according to described specification selection instruction and/or generate described speed governing order according to described speed-regulating instruction, also for described rotary speed information is sent to described upper-position unit.
The third aspect, a kind of fan, described fan is connected with system administration manager by fan interface, and described fan comprises the drive circuit of drive motor, and described fan also comprises:
Fan governor, be connected with described drive circuit, for first by described in described fan interface SC system controller send specification select command, fan specifications is selected according to described specification select command, described fan specifications according to selecting controls drive circuit, again by the speed governing order that SC system controller described in described fan interface sends, select rotating speed according to described speed governing order in the speed range that described fan specifications provides, the rotating speed according to selecting controls described drive circuit.
In conjunction with the third aspect, in the first possible implementation of the third aspect, described fan also comprises:
Speed detect circuit, be connected with described fan governor, for detecting the rotating speed of described motor, the rotating speed detected is sent to described fan governor, with described fan governor according to described in the rotating speed that detects generate rotary speed information and described rotary speed information be sent to described SC system controller by described fan interface, to be determined whether to send described speed governing order to described fan governor and described rotary speed information is sent to upper-position unit according to described rotary speed information by described SC system controller.
The invention has the beneficial effects as follows: in fan control system provided by the invention, for the radiating requirements of different communication equipment, SC system controller sends specification select command, to be switched to the fan specifications of coupling to fan governor; And then under this fan specifications, SC system controller sends speed governing order, to control further to finely control rotation speed of the fan to fan governor.Therefore, fan control system provided by the invention meets the cooling requirements of different communication equipment effectively, can also adjust rotation speed of the fan further for the working environment of different temperatures, practical, also hommization more.
Accompanying drawing explanation
In order to be illustrated more clearly in the technological scheme in the embodiment of the present invention, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
Fig. 1 is the system architecture diagram of the fan control system that the embodiment of the present invention one provides;
Fig. 2 is the one composition structural drawing of the system administration manager that the embodiment of the present invention two provides;
Fig. 3 is the one composition structural drawing of the fan that the embodiment of the present invention three provides;
Fig. 4 is the another kind composition structural drawing of the system administration manager that the embodiment of the present invention four provides;
Fig. 5 is the another kind composition structural drawing of the fan that the embodiment of the present invention five provides.
Embodiment
In order to make object of the present invention, technological scheme and advantage clearly understand, below in conjunction with drawings and Examples, the present invention is further elaborated.Should be appreciated that specific embodiment described herein only in order to explain the present invention, be not intended to limit the present invention.
In embodiments of the present invention, system administration manager 1 comprises power converting circuit, external power supply is carried out voltage transformation, current transformation or power conversion by this power converting circuit, is powered by the power supply after conversion to SC system controller, is powered by the power supply after conversion by fan interface 3 to fan 2 simultaneously.Correspondingly, fan 2 comprises reduction voltage circuit, and therefore, the power supply after the conversion received from described fan interface 3 is carried out step-down process by this reduction voltage circuit, then provides the power supply of coupling to fan governor 21, provides the power supply of coupling to speed detect circuit 22; Meanwhile, the drive circuit 23 that the power supply after the conversion received from described fan interface 3 comprises directly to fan 2 is directly powered.
It should be noted that, the motor that fan 2 comprises can adopt single-phase, two-phase or three phase electric machine, and meanwhile, the described drive circuit 23 that drive motor rotates also does corresponding the regulation of electrical circuit.Wherein, described driven by motor flabellum carries out rotating to dispel the heat.
In order to technical solutions according to the invention are described, be described below by specific embodiment.
embodiment one:
A kind of fan control system that the present embodiment provides, Fig. 1 shows the system architecture of this fan control system, for convenience of description, illustrate only the part relevant to the embodiment of the present invention.
A kind of fan control system, comprises system administration manager 1, comprises one or more fan interface, and comprise one or more fan 2, described system administration manager 1 is connected with a described fan 2 by a fan interface 3, and described fan 2 comprises the drive circuit 23 of drive motor
Described system administration manager 1 comprises:
SC system controller 11, sends specification select command for the fan governor 21 first comprised to described fan 2 by described fan interface 3, then sends speed governing order by described fan interface 3 to described fan governor 21;
Described fan 2 comprises:
Described fan governor 21, be connected with described drive circuit 23, for first receiving described specification select command by described fan interface 3, fan specifications is selected according to described specification select command, described fan specifications according to selecting controls drive circuit 23, receive described speed governing order by described fan interface 3 again, select rotating speed according to described speed governing order in the speed range that described fan specifications provides, the rotating speed according to selecting controls described drive circuit 23.
In the present embodiment, according to the heat radiation needs of different communication equipment, SC system controller 11 sends to fan governor 21 different specification select commands to select coupling fan specifications with fan governor 21; And then according to concrete required heat dispersal situations, SC system controller 11 sends in the speed range that speed governing order provides from the fan specifications selected with fan governor 21 to fan governor 21 and selects rotating speed, fan governor 21 generates pulsewidth modulation (PulseWidthModulation, PWM) signal control drive circuit 23 to adjust the rotating speed of motor according to the rotating speed selected.
What deserves to be explained is, embodiments provide multiple fan specifications, wherein, often kind of fan specifications comprises different speed range.Like this, fan governor 21 can select the fan specifications of coupling according to the different specification select command received.Preferably, the pwm signal of the corresponding frequency band of each fan specifications, such as: fan governor 21 receives the pwm signal of less than 500 hertz that SC system controller 11 is issued by fan interface 3, select 1 grade of fan specifications (speed range of this 1 grade of fan specifications is: 800 ~ 4000 revs/min), receive the pwm signal (specification selection instruction) of 500 hertz to 1000 hertz, select 2 grades of fan specifications (speed range of these 2 grades of fan specifications is: 800 ~ 5000 revs/min), receive the pwm signal (specification selection instruction) of more than 1000 hertz, select 3 grades of fan specifications (speed range of these 3 grades of fan specifications is: 800 ~ 6000 revs/min).Preferably, the pwm signal of the corresponding dutycycle section of each fan specifications, such as: fan governor 21 receive SC system controller 11 by fan interface 3 issue 6% ~ 10% pwm signal (specification selection instruction), select 1 grade of fan specifications (speed range of this 1 grade of fan specifications is: 800 ~ 4000 revs/min), receive the pwm signal (specification selection instruction) of 11% ~ 15%, select 2 grades of fan specifications (speed range of these 2 grades of fan specifications is: 800 ~ 5000 revs/min), receive the pwm signal (specification selection instruction) of 16% ~ 20%, select 3 grades of fan specifications (speed range of these 3 grades of fan specifications is: 800 ~ 6000 revs/min).Then, the speed-regulating instruction that fan governor 21 receiving system controller 11 is issued by fan interface 3, the selection of rotating speed is carried out in the speed range of the fan specifications selected, such as: fan governor 21 first receives the pwm signal of 11% ~ 15%, select 2 grades of fan specifications, then receive the pwm signal (speed-regulating instruction) of 20% ~ 100%, then represent and carry out selection of speed in 800 ~ 5000 revs/min, as received the pwm signal (speed-regulating instruction) of 60% again, select 2900 revs/min.
Preferably, when communication apparatus powers on, then SC system controller 11 generates specification select command according to the fan specifications of acquiescence.The fan specifications of described acquiescence is the maximum heat dissipating capacity according to communication apparatus and the power supply capacity to described fan and default.Described fan specifications comprises the fan specifications of described acquiescence.
Preferably, drive circuit 23 comprises the circuit composition of one or more switching component (described switching component comprises transistor), fan governor 21 is by sending pwm signal to control the disconnection/ON time of each switching component respectively to drive circuit 23, and then the rotating speed that control rotor rotates is to control the rotating speed of motor.
Preferably, when fan governor 21 receives specification select command, select fan specifications, meanwhile, if motor is in rotary state, controls drive circuit 23 and rotate to stop drive motor, fan governor 21 wait-receiving mode speed governing order; When receiving speed governing order, in the speed range that the fan specifications selected provides, select rotating speed, generate pwm signal according to the rotating speed selected, control drive circuit 23 to adjust the rotating speed of motor according to this pwm signal.
Preferably, in system administration manager 1, between described power converting circuit with described SC system controller 11, power bus is adopted to be connected; Control bus is adopted to be connected between described SC system controller 11 with described ambient temperature detection circuit 12.In fan 2, control bus is adopted to be connected between described speed detect circuit 22 with described fan governor 21, described reduction voltage circuit adopts power bus to be connected with described fan governor 21 and described speed detect circuit 22 respectively, adopts control bus to be connected between described fan governor 21 with described drive circuit 23.
Preferably, described fan interface 3 can adopt Male/female connector; Wherein, this Male/female connector comprises positive source pin, power cathode pin, PWM pin; In addition, as required, this Male/female connector can also comprise speed-frequency signal/rotary state detection signal (FrequencyGeneration/RotateDetetion, FG/RD) pin.Wherein, after power converting circuit changes the power supply that outside is accessed, the positive source pin comprised the power supply after conversion by this Male/female connector and power cathode pin are powered directly to described drive circuit 23, simultaneously, the positive source pin comprised the power supply after conversion by this Male/female connector and power cathode pin input to the reduction voltage circuit that fan 2 comprises, with this reduction voltage circuit, the power supply after the conversion received from described fan interface 3 is carried out step-down process, then the power supply of coupling is provided to fan governor 21, the power supply of coupling is provided to speed detect circuit 22.Preferably, the PWM pin that described specification select command and described speed governing order are all comprised by fan interface 3 sends to fan governor 21 by SC system controller 11.
As one embodiment of the invention, in order to keep the temperature in communications equipment to remain on to keep communications equipment normally to work in preset temperature range, described system administration manager 1 also comprises:
Ambient temperature detection circuit 12, be connected with described SC system controller 11, for detecting the ambient temperature in communications equipment, and described ambient temperature is sent to described SC system controller 11 and determines whether to send described specification select command and/or described speed governing order to described fan governor 21 according to described ambient temperature with described SC system controller 11.
In the present embodiment, because the electronic parts and components in communications equipment, central processing unit (CPU) etc. operationally can produce large calorimetric, ambient temperature in communications equipment is raised, in order to ensure that ambient temperature in communications equipment is in preset temperature range, needs real-time testing environment temperature; For the different temperatures detected, the rotating speed of adjustment motor dispels the heat.
Particularly, ambient temperature detection circuit 12 adopts temperature transducer testing environment temperature, SC system controller 11 is the ambient temperature that detects of temperature sensing circuit 12 environmentally, judge this ambient temperature whether in described preset temperature range, if, then do not adjust, if do not exist, judge whether to need to adjust fan specifications according to the temperature detected, if do not need, then send speed-regulating instruction ambient temperature to be adjusted in described preset temperature range to fan governor 21, if desired fan specifications is adjusted, then first send specification select command to fan governor 21, complete after specification selection until fan governor 21, speed governing order is sent again to fan governor 21.Thus, fan governor 21 carries out fan specifications selection according to the specification select command received, determine that rotating speed in the speed range of this fan specifications is to control drive circuit 23 according to speed governing order, realize the adjustment of the rotating speed of motor, thus realize carrying out corresponding heat radiation for different ambient temperatures.It should be noted that, the maximum value that ambient temperature exceedes described preset temperature range is more, and the rotating speed of motor is faster to accelerate heat radiation.
As one embodiment of the invention, described fan 2 also comprises: speed detect circuit 22, be connected with described fan governor 21, for detecting the rotating speed of described motor, the rotating speed detected is sent to described fan governor 21, generates rotary speed information with described fan governor 21 according to the described rotating speed detected and described rotary speed information is sent to described SC system controller 11 by described fan interface 3;
Described SC system controller 11, also sends described speed governing order for determining whether according to described rotary speed information to described fan governor 21.
In the present embodiment, after described fan governor 21 generates rotary speed information according to the described rotating speed detected, the described rotary speed information generated is forwarded to described SC system controller 11 by fan interface 3.And then, SC system controller 11 can be proofreaded according to the rotary speed information received and preset rotation speed scope (described preset rotation speed scope is according to the rotating speed needing the motor preset that dispels the heat), if not within the scope of preset rotation speed, then SC system controller 11 sends speed governing order to fan governor 21, fan governor 21 controls drive circuit 23 to adjust the rotating speed of motor according to this speed governing order, meanwhile, the rotating speed of motor is detected in real time by speed detect circuit 22, thus form Closed control with the adjustment of rotational speed of motor the most at last within the scope of preset rotation speed, after the rotating speed of motor is within the scope of preset rotation speed, stop to fan governor 21 to transmission speed governing order.
Preferably, speed detect circuit 22 detects the rotating speed of the rotor that motor comprises by Hall element, and then calculates the rotating speed of motor according to the tachometer of rotor.
Preferably, described rotary speed information is sent to described SC system controller 11 by the FG/RD pin of fan interface 3 by described fan governor 21.
As one embodiment of the invention, described SC system controller 11, also for receiving specification selection instruction and/or the speed-regulating instruction of upper-position unit, generate described specification select command according to described specification selection instruction and/or generate described speed governing order according to described speed-regulating instruction, also for described rotary speed information is sent to described upper-position unit.
In the present embodiment, the data transmission between described SC system controller 11 and described upper-position unit is carried out by intelligent data bus; Wherein, described intelligent data bus comprises: 485 serial communication bus (RS-485Bus, RS485), Serial Peripheral Interface (SPI) (SerialPeripheralInterface, SPI) bus and Ethernet interface (FastEthernet, PE) bus etc.
Like this, by the described upper-position unit for man-machine interaction, user can set described specification selection instruction and/or described speed-regulating instruction; In addition, described upper-position unit can also show the described rotary speed information that receives so that user browses.
Embodiment two:
The system administration manager 1 that the present embodiment provides is applicable to the fan control system that embodiment one provides, and Fig. 2 shows the one composition structure of this system administration manager 1, for convenience of description, illustrate only the part relevant to the embodiment of the present invention.
A kind of system administration manager 1, described system administration manager 1 is connected with one or more fan 2, and wherein, described system administration manager 1 is connected with a described fan 2 by a fan interface 3, described fan 2 comprises the drive circuit 23 of drive motor, and described system administration manager 1 comprises:
SC system controller 11, for first sending specification select command with described fan governor 21 according to described specification select command selection fan specifications and according to the described fan specifications control drive circuit 23 selected by described fan interface 3 to the fan governor 21 that described fan 2 comprises, then send speed governing order to select rotating speed according to described speed governing order in the speed range that described fan specifications provides and to control described drive circuit 23 according to the rotating speed selected by described fan interface 3 to described fan governor 21.
In the present embodiment, for being applied to different communication equipment, when needs switch fan specifications, SC system controller 11 first sends to fan governor 21 specification select command to be switched to coupling fan specifications with fan governor 21, if motor is in running order, fan governor 21 controls drive circuit 23 to stop electric machine rotation, waits for speed governing order; Again according to concrete required heat dispersal situations, send in speed range that speed governing order provides from the fan specifications be switched to fan governor 21 to fan governor 21 and select rotating speed, fan governor 21 generates pulse-width modulation PWM signal control drive circuit 23 to adjust the rotating speed of motor according to the rotating speed selected.
Preferably, when communication apparatus powers on, then SC system controller 11 generates specification select command according to the fan specifications of acquiescence.The fan specifications of described acquiescence is the maximum heat dissipating capacity according to communication apparatus and the power supply capacity to described fan and default.Described fan specifications comprises the fan specifications of described acquiescence.
As one embodiment of the invention, in order to keep the temperature in communications equipment to remain on to keep communications equipment normally to work in preset temperature range, described system administration manager 1 also comprises:
Ambient temperature detection circuit 12, be connected with described SC system controller 11, for detecting the ambient temperature in communications equipment, and described ambient temperature is sent to described SC system controller 11 and determines whether to send described specification select command and/or described speed governing order to described fan governor 21 according to described ambient temperature with described SC system controller 11.
Particularly, ambient temperature detection circuit 12 adopts the ambient temperature in temperature transducer detection communications equipment, SC system controller 11 is the ambient temperature that detects of temperature sensing circuit 12 environmentally, judge this ambient temperature whether in described preset temperature range, if, then do not adjust, if do not exist, judge whether to need to adjust fan specifications according to the temperature detected, if do not need, then send speed-regulating instruction ambient temperature to be adjusted in described preset temperature range to fan governor 21, if desired fan specifications is adjusted, then first send specification select command to fan governor 21, complete after specification selection until fan governor 21, speed governing order is sent again to fan governor 21.Thus, fan governor 21 carries out fan specifications selection according to the specification select command received, determine that rotating speed in the speed range of this fan specifications is to control drive circuit 23 according to speed governing order, realize the adjustment of the rotating speed of motor, thus realize carrying out corresponding heat radiation for different ambient temperatures.It should be noted that, the maximum value that ambient temperature exceedes described preset temperature range is more, and the rotating speed of motor is faster to accelerate heat radiation.
As one embodiment of the invention, described system administration manager 1 also comprises:
Described SC system controller 11, also for receiving rotary speed information by described fan interface 3, determine whether to send described speed governing order to described fan governor 21 according to described rotary speed information, described rotary speed information is generated according to the rotating speed that detects by described fan governor 21, described in the speed detect circuit 22 that comprised by described fan 2 of the rotating speed that detects detect and obtain.
Particularly, after described SC system controller 11 receives described rotary speed information by fan interface 3, proofread according to the rotary speed information received and preset rotation speed scope, if not within the scope of preset rotation speed, then SC system controller 11 sends speed governing order to fan governor 21, fan governor 21 controls drive circuit 23 to adjust the rotating speed of motor according to this speed governing order, meanwhile, the rotating speed of motor is detected in real time by speed detect circuit 22, thus form Closed control with the adjustment of rotational speed of motor the most at last within the scope of preset rotation speed, after the rotating speed of motor is within the scope of preset rotation speed, stop to fan governor 21 to transmission speed governing order.
As one embodiment of the invention, described SC system controller 11, also for receiving specification selection instruction and/or the speed-regulating instruction of upper-position unit, generate described specification select command according to described specification selection instruction and/or generate described speed governing order according to described speed-regulating instruction, also for described rotary speed information is sent to described upper-position unit.
Like this, by the described upper-position unit for man-machine interaction, user can set described specification selection instruction and/or described speed-regulating instruction; In addition, described upper-position unit can also show the described rotary speed information that receives so that user browses.
embodiment three:
The fan 2 that the present embodiment provides is applicable to the fan control system that embodiment one provides, and Fig. 3 shows the one composition structure of this fan 2, for convenience of description, illustrate only the part relevant to the embodiment of the present invention.
A kind of fan 2, described fan 2 is connected with system administration manager 1 by fan interface 3, and described fan 2 comprises the drive circuit 23 of drive motor, and described fan 2 also comprises:
Fan governor 21, be connected with described drive circuit 23, for first being received the specification select command of described SC system controller 11 transmission by described fan interface 3, fan specifications is selected according to described specification select command, described fan specifications according to selecting controls drive circuit 23, the speed governing order of described SC system controller 11 transmission is received again by described fan interface 3, in the speed range that described fan specifications provides, select rotating speed according to described speed governing order, the rotating speed according to selecting controls described drive circuit 23.
In the present embodiment, heat radiation for different communication equipment needs, when needing to switch current fan specifications, first fan governor 21 can receive the specification select command of SC system controller 11 transmission to be switched to the fan specifications of coupling, if motor is in running order, fan governor 21 controls drive circuit 23 to stop electric machine rotation, waits for speed governing order; Then according to concrete required heat dispersal situations, first fan governor 21 can receive speed governing order again to select rotating speed in the speed range provided from the fan specifications be switched to, and generates pulse-width modulation PWM signal control drive circuit 23 to adjust the rotating speed of motor according to the rotating speed selected.
As one embodiment of the invention, in order to ensure that the rotating speed of motor is preset rotation speed operated within range, described fan 2 also comprises:
Speed detect circuit 22, be connected with described fan governor 21, for detecting the rotating speed of described motor, the rotating speed detected is sent to described fan governor 21 generate rotary speed information with described fan governor 21 according to the described rotating speed detected and described rotary speed information be sent to described SC system controller 11 by described fan interface 3, to be determined whether to send described speed governing order to described fan governor 21 and described rotary speed information is sent to upper-position unit according to described rotary speed information by described SC system controller 11.
Particularly, after described fan governor 21 generates rotary speed information according to the described rotating speed detected, the described rotary speed information generated is forwarded to described SC system controller 11 by fan interface 3.And then, SC system controller 11 can be proofreaded according to the rotary speed information received and preset rotation speed scope, if not within the scope of preset rotation speed, then SC system controller 11 sends speed governing order to fan governor 21, fan governor 21 controls drive circuit 23 to adjust the rotating speed of motor according to this speed governing order, meanwhile, the rotating speed of motor is detected in real time by speed detect circuit 22, thus form Closed control with the adjustment of rotational speed of motor the most at last within the scope of preset rotation speed, after the rotating speed of motor is within the scope of preset rotation speed, stop to fan governor 21 to transmission speed governing order.
embodiment four:
The system administration manager 1 that the present embodiment provides is applicable to the fan control system that embodiment one provides, and Fig. 4 shows the another kind composition structure of this system administration manager 1, for convenience of description, illustrate only the part relevant to the embodiment of the present invention.
A kind of system administration manager 1, comprising: processor 41, storage 42, ambient temperature detection circuit 12 and the first fan interface 43.Wherein,
Processor 41, for executive routine.
In the embodiment of the present invention four, program can comprise program-code, and described program-code comprises operational order.
Processor 41 may be central processor CPU, or is configured to the one or more intergrated circuit implementing the embodiment of the present invention.
Storage 42, for storage program.
Storage 42 may comprise random access memory, and (English: Random-accessmemory, abbreviation: RAM), still may comprise nonvolatile memory (English: Non-volatilememory, abbreviation: NVRAM).
First fan interface 43, for sending specification select command and speed governing order to fan governor 21, receiving the rotary speed information that fan governor 21 sends, forwarding this rotary speed information to upper-position unit.Described first fan interface 43 is fan interface, for docking with fan interface 3." first " in " the first fan interface 43 " is only acute pyogenic infection of finger tip.
In the present embodiment, the first fan interface 43 is Male/female connectors.
When controller runs, described processor 41 makes described controller perform following method for the program stored in execute store 42:
Processor 41 first sends specification select command with described fan governor 21 according to described specification select command selection fan specifications and according to the described fan specifications control drive circuit 23 selected by described fan interface 3 to the fan governor 21 that described fan comprises, then sends speed governing order to select rotating speed according to described speed governing order in the speed range that described fan specifications provides and to control described drive circuit 23 according to the rotating speed selected by described fan interface 3 to described fan governor 21.
In order to keep the temperature in communications equipment to remain on to keep communications equipment normally to work in preset temperature range, when controller runs, described processor 41 makes described controller perform following method for the program stored in execute store 42:
Processor 41 receives rotary speed information by described fan interface 3, determine whether to send described speed governing order to described fan governor 21 according to described rotary speed information, described rotary speed information is generated according to the rotating speed that detects by described fan governor 21, described in the speed detect circuit 22 that comprised by described fan of the rotating speed that detects detect and obtain.
embodiment five:
The fan 2 that the present embodiment provides is applicable to the fan control system that embodiment one provides, and Fig. 5 shows the another kind composition structure of this fan 2, for convenience of description, illustrate only the part relevant to the embodiment of the present invention.
A kind of fan 2, comprising: processor 51, storage 52, speed detect circuit 22, drive circuit 23 and the second fan interface 53.Wherein,
Processor 51, for executive routine.
In the embodiment of the present invention five, program can comprise program-code, and described program-code comprises operational order.
Processor 51 may be central processor CPU, or is configured to the one or more intergrated circuit implementing the embodiment of the present invention.
Storage 52, for storage program.
Storage 52 may comprise random access memory, still may comprise nonvolatile memory.
Second fan interface 53, the specification select command sent for receiving system controller 11 and speed governing order, send rotary speed information to described SC system controller 11.Described second fan interface 53 is fan interface, for docking with fan interface 3." second " in " the second fan interface 53 " is only acute pyogenic infection of finger tip.
In the present embodiment, the second fan interface 53 is Male/female connectors.
When controller runs, described processor 51 makes described controller perform following method for the program stored in execute store 52:
Processor 51 first receives the specification select command of described SC system controller 11 transmission by described fan interface 3, fan specifications is selected according to described specification select command, described fan specifications according to selecting controls drive circuit 23, the speed governing order of described SC system controller 11 transmission is received again by described fan interface 3, in the speed range that described fan specifications provides, select rotating speed according to described speed governing order, the rotating speed according to selecting controls described drive circuit 23.
Meanwhile, in order to ensure that the rotating speed of motor is preset rotation speed operated within range, speed detect circuit 22 detects the rotating speed of described motor, the rotating speed detected is sent to described processor 51 generate rotary speed information with described processor 51 according to the described rotating speed detected and described rotary speed information be sent to described SC system controller 11 by described fan interface 3, to be determined whether to send described speed governing order to described processor 51 and described rotary speed information is sent to upper-position unit according to described rotary speed information by described SC system controller 11.
In embodiments of the present invention, for the radiating requirements of different communication equipment, SC system controller sends specification select command to be switched to the fan specifications of coupling, with satisfied heat radiation needs to fan governor; In addition for concrete heat dispersal situations, by sending speed governing order to carry out closed loop control to the rotating speed of motor to fan governor, effectively ensure that the rotating speed of motor is followed ambient temperature and becomes, effectively meet the cooling requirements of different communication equipment, communications equipment can also be allowed to adapt to the working environment of different temperatures, practical, also hommization more.
Those of ordinary skill in the art it is also understood that, the all or part of function realized in above-described embodiment system is that the hardware that can carry out instruction relevant by program has come, described program can be stored in a computer read/write memory medium, described storage medium, comprises ROM/RAM, disk, CD etc.
Above content is in conjunction with concrete preferred implementation further description made for the present invention, can not assert that specific embodiment of the invention is confined to these explanations.For general technical staff of the technical field of the invention; make some equivalent alternative or obvious modification without departing from the inventive concept of the premise; and performance or purposes identical, all should be considered as belonging to the scope of patent protection that the present invention is determined by submitted to claims.
Claims (10)
1. a fan control system, comprises system administration manager, comprises one or more fan interface, and comprising one or more fan, described system administration manager is connected with a described fan by a described fan interface, and described fan comprises the drive circuit of drive motor, it is characterized in that
Described system administration manager comprises:
SC system controller, is sent specification select command for the fan governor first comprised to described fan by described fan interface, then sends speed governing order by described fan interface to described fan governor;
Described fan comprises:
Described fan governor, be connected with described drive circuit, for first by specification select command described in described fan interface, fan specifications is selected according to described specification select command, described fan specifications according to selecting controls drive circuit, again by speed governing order described in described fan interface, select rotating speed according to described speed governing order in the speed range that described fan specifications provides, the rotating speed according to selecting controls described drive circuit.
2. fan control system as claimed in claim 1, it is characterized in that, described system administration manager also comprises:
Ambient temperature detection circuit, be connected with described SC system controller, for detecting the ambient temperature in communications equipment, and described ambient temperature is sent to described SC system controller and determines whether to send described specification select command and/or described speed governing order to described fan governor according to described ambient temperature with described SC system controller.
3. fan control system as claimed in claim 1, is characterized in that,
Described fan also comprises: speed detect circuit, be connected with described fan governor, for detecting the rotating speed of described motor, the rotating speed detected is sent to described fan governor, with described fan governor according to described in the rotating speed that detects generate rotary speed information and described rotary speed information be sent to described SC system controller by described fan interface;
Described SC system controller, also sends described speed governing order for determining whether according to described rotary speed information to described fan governor.
4. fan control system as claimed in claim 3, is characterized in that,
Described SC system controller, also for receiving specification selection instruction and/or the speed-regulating instruction of upper-position unit, generate described specification select command according to described specification selection instruction and/or generate described speed governing order according to described speed-regulating instruction, also for described rotary speed information is sent to described upper-position unit.
5. a system administration manager, described system administration manager is connected with one or more fan, wherein, described system administration manager is connected with a described fan by a fan interface, described fan comprises the drive circuit of drive motor, it is characterized in that, described system administration manager comprises:
SC system controller, fan governor for first being comprised to described fan by described fan interface sends specification select command, with described fan governor according to described specification select command selection fan specifications and according to the described fan specifications control drive circuit selected, speed governing order is sent to described fan governor again, to select rotating speed according to described speed governing order in the speed range that described fan specifications provides and to control described drive circuit according to the rotating speed selected by described fan interface.
6. system administration manager as claimed in claim 5, it is characterized in that, described system administration manager also comprises:
Ambient temperature detection circuit, be connected with described SC system controller, for detecting the ambient temperature in communications equipment, and described ambient temperature is sent to described SC system controller, determine whether to send described specification select command and/or described speed governing order to described fan governor according to described ambient temperature with described SC system controller.
7. system administration manager as claimed in claim 6, it is characterized in that, described system administration manager also comprises:
Described SC system controller, also for passing through described fan interface rotary speed information, determine whether to send described speed governing order to described fan governor according to described rotary speed information, described rotary speed information is generated according to the rotating speed that detects by described fan governor, described in the speed detect circuit that comprised by described fan of the rotating speed that detects detect and obtain.
8. system administration manager as claimed in claim 6, it is characterized in that, described SC system controller, also for receiving specification selection instruction and/or the speed-regulating instruction of upper-position unit, generate described specification select command according to described specification selection instruction and/or generate described speed governing order according to described speed-regulating instruction, also for described rotary speed information is sent to described upper-position unit.
9. a fan, described fan is connected with system administration manager by fan interface, and described fan comprises the drive circuit of drive motor, it is characterized in that, described fan also comprises:
Fan governor, be connected with described drive circuit, for first by described in described fan interface SC system controller send specification select command, fan specifications is selected according to described specification select command, described fan specifications according to selecting controls drive circuit, again by the speed governing order that SC system controller described in described fan interface sends, select rotating speed according to described speed governing order in the speed range that described fan specifications provides, the rotating speed according to selecting controls described drive circuit.
10. fan as claimed in claim 9, it is characterized in that, described fan also comprises:
Speed detect circuit, be connected with described fan governor, for detecting the rotating speed of described motor, the rotating speed detected is sent to described fan governor, with described fan governor according to described in the rotating speed that detects generate rotary speed information and described rotary speed information be sent to described SC system controller by described fan interface, to be determined whether to send described speed governing order to described fan governor and described rotary speed information is sent to upper-position unit according to described rotary speed information by described SC system controller.
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105332936B (en) * | 2014-08-12 | 2017-09-19 | 台达电子工业股份有限公司 | Fan control device |
| CN108757536B (en) * | 2018-05-25 | 2020-06-23 | 联想(北京)有限公司 | Electronic equipment and fan control method |
| CN111005892B (en) * | 2019-12-18 | 2021-06-18 | 迈普通信技术股份有限公司 | Adaptive fan circuit, system, electronic equipment and fan detection method |
| CN112363594A (en) * | 2020-10-26 | 2021-02-12 | 努比亚技术有限公司 | Terminal fan control method and device and terminal |
| CN112460053A (en) * | 2020-11-12 | 2021-03-09 | 山东云海国创云计算装备产业创新中心有限公司 | Fan control method, system, equipment and storage medium |
| CN113090567B (en) * | 2021-03-04 | 2022-11-25 | 山东英信计算机技术有限公司 | Fan rotating speed adjusting device and method |
| CN113931860A (en) * | 2021-09-13 | 2022-01-14 | 中国长城科技集团股份有限公司 | Fan rotating speed control method and device, terminal equipment and storage medium |
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