CN103644136A - Fan control system, system management device and fans - Google Patents
Fan control system, system management device and fans Download PDFInfo
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- CN103644136A CN103644136A CN201310724039.3A CN201310724039A CN103644136A CN 103644136 A CN103644136 A CN 103644136A CN 201310724039 A CN201310724039 A CN 201310724039A CN 103644136 A CN103644136 A CN 103644136A
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Abstract
The invention applies to the field of communication devices, and discloses a fan control system, a system management device and fans. The fan control system comprises the system management device, one or more fan interfaces and one or more fans, wherein the system management device is connected with one fan through one fan interface and comprises a system controller; each fan comprises a drive circuit, which is used for driving a motor, and a fan controller. Therefore, the system controller can send a specification selection command to the fan controller according to the heat dissipation requirements of different communication devices so as to switch to a matched fan specification; under the fan specification, the system controller sends a speed regulation command to the fan controller to further control the fan rotating speeds, so as to realize accurate control. According to the invention, the heat dissipation requirements of different communication devices are effectively satisfied; the fan rotating speed can be further regulated according to work environments at different temperatures; the practicability is high; humanization is achieved.
Description
Technical field
The invention belongs to communication equipment field, relate in particular 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 is mainly comprised of communications equipments such as mobile communication equipment, internet communication equipment, thereby realizes the data transmission between communications equipment, realizes the business functions such as phone and browsing page.
Along with the traffic increases, communications equipment load increases, and often needs to adopt fan to carry out internal heat dissipating to communications equipment.Because the power consumption of different communications equipments is different, the required amount of heat shedding is also different, thereby the fan specification of selecting is also different; Thereby for different communication equipment, need to adopt the fan specification of coupling, cause for fan specification and the number of fans of communications equipment heat radiation more and more, and fan mate coupling with communications equipment too strong.Therefore, be only applicable to the fan of the communications equipment of coupling, 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 of coupling.
On the one hand, a kind of fan control system, comprises system administration manager, comprise one or more fan interfaces, and comprise one or more fans, 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, sends specification select command for the fan governor first comprising to described fan by described fan interface, then to described fan governor, sends speed governing order by described fan interface;
Described fan comprises:
Described fan governor, be connected with described drive circuit, for first receiving described specification select command by described fan interface, according to described specification select command, select fan specification, according to the described fan specifications control drive circuit of selecting, by described fan interface, receive described speed governing order again, in the speed range providing in described fan specification according to described speed governing order, select rotating speed, according to the rotating speed of selecting, control described drive circuit.
In conjunction with first aspect, in the possible implementation of the first of first aspect, described system administration manager also comprises:
Ambient temperature detection circuit, be connected with described SC system controller, for detection of the ambient temperature in communications equipment, and described ambient temperature is sent to described SC system controller with described SC system controller, according to described ambient temperature, determines whether to send described specification select command and/or described speed governing order to described fan governor.
In conjunction with the possible implementation of the first of first aspect or first aspect, in the possible implementation of the second of first aspect, described fan also comprises: speed detect circuit, be connected with described fan governor, rotating speed for detection of described motor, detected rotating speed is sent to described fan governor, with described fan governor, according to described detected rotating speed, generates rotary speed information and described rotary speed information is 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.
The possible implementation of the second in conjunction with the possible implementation of the first of first aspect or first aspect or 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, according to described specification selection instruction, generate described specification select command 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 fans, 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, for the fan governor first comprising to described fan by described fan interface, send specification select command, with described fan governor, according to described specification select command, select fan specification and according to the described fan specifications control drive circuit of selecting, by described fan interface, to described fan governor, send speed governing order again, rotating speed to be provided in the speed range providing in described fan specification according to described speed governing order and to control described drive circuit according to the rotating speed of selecting.
In conjunction with second aspect, in the possible implementation of the first of second aspect, described system administration manager also comprises:
Ambient temperature detection circuit, be connected with described SC system controller, for detection of the ambient temperature in communications equipment, and described ambient temperature is sent to described SC system controller, with described SC system controller, according to described ambient temperature, determine whether to send described specification select command and/or described speed governing order to described fan governor.
In conjunction with the possible implementation of the first of second aspect or second aspect, in the possible implementation of the second of second aspect, described system administration manager also comprises:
Described SC system controller, also for receiving rotary speed information by described fan interface, according to described rotary speed information, determine whether to send described speed governing order to described fan governor, described rotary speed information is generated according to detected rotating speed by described fan governor, and the speed detect circuit that described detected rotating speed is comprised by described fan detects and obtains.
The possible implementation of the second in conjunction with the possible implementation of the first of second aspect or second aspect or 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, according to described specification selection instruction, generate described specification select command 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 receiving by described fan interface the specification select command that described SC system controller sends, according to described specification select command, select fan specification, according to the described fan specifications control drive circuit of selecting, by described fan interface, receive the speed governing order that described SC system controller sends again, in the speed range providing in described fan specification according to described speed governing order, select rotating speed, according to the rotating speed of selecting, control described drive circuit.
In conjunction with the third aspect, in the possible implementation of the first of the third aspect, described fan also comprises:
Speed detect circuit, be connected with described fan governor, rotating speed for detection of described motor, detected rotating speed is sent to described fan governor, with described fan governor, according to described detected rotating speed, generate rotary speed information and described rotary speed information is sent to described SC system controller by described fan interface, to be determined whether send described speed governing order and described rotary speed information is sent to upper-position unit to described fan governor 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 fan governor, to be switched to the fan specification of coupling; And then under this fan specification, SC system controller sends speed governing order to fan governor, further to control, rotation speed of the fan is carried out to meticulous control.Therefore, fan control system provided by the invention meets the heat radiation requirement of different communication equipment effectively, can also further adjust rotation speed of the fan 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, to the accompanying drawing of required use in embodiment or description of the Prior Art be briefly described below, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skills, do not paying under the prerequisite of creative work, can also obtain according to these accompanying drawings other accompanying drawing.
Fig. 1 is the system architecture diagram of the fan control system that provides of the embodiment of the present invention one;
Fig. 2 is a kind of composition structural drawing of the system administration manager that provides of the embodiment of the present invention two;
Fig. 3 is a kind of composition structural drawing of the fan that provides of the embodiment of the present invention three;
Fig. 4 is that the another kind of the system administration manager that provides of the embodiment of the present invention four forms structural drawing;
Fig. 5 is that the another kind of the fan that provides of the embodiment of the present invention five forms structural drawing.
Embodiment
In order to make object of the present invention, technological scheme and advantage clearer, 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, is not intended to limit the present invention.
In embodiments of the present invention, system administration manager 1 comprises power converting circuit, this power converting circuit carries out voltage transformation, current transformation or power conversion by external power supply, and the power supply after conversion is powered to SC system controller, the power supply after conversion is powered to fan 2 by fan interface 3 simultaneously.Correspondingly, fan 2 comprises reduction voltage circuit, and therefore, this reduction voltage circuit carries out step-down processing by the power supply the conversion receiving from described fan interface 3, and then the power supply of coupling is provided to fan governor 21, and the power supply of coupling is provided to speed detect circuit 22; Meanwhile, the drive circuit 23 power supply the conversion receiving from described fan interface 3 directly being comprised to fan 2 is directly powered.
It should be noted that, that the motor that fan 2 comprises can adopt is single-phase, two-phase or three phase electric machine, and meanwhile, the described drive circuit 23 that drive motor rotates is also done corresponding the regulation of electrical circuit.Wherein, described driven by motor flabellum rotates to dispel the heat.
For technical solutions according to the invention are described, below by specific embodiment, describe.
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, only shows the part relevant to the embodiment of the present invention.
A fan control system, comprises system administration manager 1, comprises one or more fan interfaces, and comprise one or more fans 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:
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, according to described specification select command, select fan specification, according to the described fan specifications control drive circuit 23 of selecting, by described fan interface 3, receive described speed governing order again, in the speed range providing in described fan specification according to described speed governing order, select rotating speed, according to the rotating speed of selecting, control described drive circuit 23.
In the present embodiment, according to the heat radiation needs of different communication equipment, SC system controller 11 sends different specification select commands to fan governor 21 and with fan governor 21, selects the fan specification of coupling; And then according to concrete required heat radiation situation, in the speed range that SC system controller 11 provides from the fan specification of having selected with fan governor 21 to fan governor 21 transmission speed governing orders, select rotating speed, fan governor 21 generates pulsewidth modulation (Pulse Width Modulation, PWM) signal control drive circuit 23 to adjust the rotating speed of motor according to the rotating speed of selecting.
What deserves to be explained is, the embodiment of the present invention provides multiple fan specification, and wherein, every kind of fan specification comprises different speed range.Like this, fan governor 21 can be selected according to the different specification select command receiving the fan specification of coupling.Preferably, the pwm signal of the corresponding frequency band of each fan specification, for example: fan governor 21 receives 500 hertz of following pwm signals that SC system controller 11 issues by fan interface 3, select 1 grade of fan specification (speed range of this 1 grade of fan specification 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 1000 hertz of above pwm signals (specification selection instruction), 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 specification, for example: 6%～10% the pwm signal (specification selection instruction) that fan governor 21 receives that SC system controller 11 issues by fan interface 3, select 1 grade of fan specification (speed range of this 1 grade of fan specification is: 800～4000 revs/min), receive 11%～15% pwm signal (specification selection instruction), select 2 grades of fan specifications (speed range of these 2 grades of fan specifications is: 800～5000 revs/min), receive 16%～20% pwm signal (specification selection instruction), 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 controllers 11 issue by fan interface 3, in the speed range of the fan specification of having selected, carry out the selection of rotating speed, for example: fan governor 21 first receives 11%～15% pwm signal, select 2 grades of fan specifications, then receive 20%～100% pwm signal (speed-regulating instruction), represent and in 800～5000 revs/min, carry out selection of speed, as received again 60% pwm signal (speed-regulating instruction), select 2900 revs/min.
Preferably, when communication apparatus powers on, SC system controller 11 generates specification select command according to the fan specification of acquiescence.The fan specification of described acquiescence is according to the maximum heat dissipating capacity of communication apparatus with to the power supply capacity of described fan and default.Described fan specification comprises the fan specification of described acquiescence.
Preferably, drive circuit 23 comprises one or more switching components the electric circuit constitute of (described switching component comprises transistor), fan governor 21 is by sending pwm signal to control respectively the disconnection/ON time of each switching component to drive circuit 23, and then the rotating speed of controlling rotor rotation is to control the rotating speed of motor.
Preferably, when fan governor 21 receives specification select command, select fan specification, meanwhile, if motor in rotary state, is controlled drive circuit 23, to stop drive motor, rotate, fan governor 21 is waited for and is received speed governing order; While receiving speed governing order, in the speed range providing in the fan specification of having selected, select rotating speed, according to the rotating speed of selecting, generate pwm signal, according to this pwm signal, control drive circuit 23 to adjust the rotating speed of motor.
Preferably, in system administration manager 1, between described power converting circuit and described SC system controller 11, adopt power bus to be connected; Between described SC system controller 11 and described ambient temperature detection circuit 12, adopt control bus to be connected.In fan 2, between described speed detect circuit 22 and described fan governor 21, adopt control bus to be connected, described reduction voltage circuit adopts power bus to be connected with described speed detect circuit 22 with described fan governor 21 respectively, between described fan governor 21 and described drive circuit 23, adopts control bus to be connected.
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 (Frequency Generation/Rotate Detetion, FG/RD) pin.Wherein, after power converting circuit changes the power supply of outside access, the positive source pin that power supply after conversion is comprised by this Male/female connector and power cathode pin are directly to described drive circuit 23 power supplies, simultaneously, positive source pin and power cathode pin that power supply after conversion is comprised by this Male/female connector input to the reduction voltage circuit that fan 2 comprises, with this reduction voltage circuit, the power supply the conversion receiving from described fan interface 3 is carried out to step-down processing, 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 SC system controller 11 all comprises described specification select command and described speed governing order by fan interface 3 sends to fan governor 21.
As one embodiment of the invention, in order to keep temperature in communications equipment to remain in preset temperature range to keep communications equipment normally to work, described system administration manager 1 also comprises:
Ambient temperature detection circuit 12, be connected with described SC system controller 11, for detection of the ambient temperature in communications equipment, and described ambient temperature is sent to described SC system controller 11 with described SC system controller 11, according to described ambient temperature, determines whether to send described specification select command and/or described speed governing orders to described fan governor 21.
In the present embodiment, because the electronic parts and components in communications equipment, central processing unit (CPU) etc. can produce large calorimetric when working, ambient temperature in communications equipment is raise, in order to guarantee that ambient temperature in communications equipment, in preset temperature range, needs real-time testing environment temperature; For the different temperatures detecting, the rotating speed of adjusting motor dispels the heat.
Particularly, ambient temperature detection circuit 12 adopts temperature transducer testing environment temperature, the ambient temperature that SC system controller 11 detects according to ambient temperature detection circuit 12, judge that this ambient temperature is whether in described preset temperature range, if, do not adjust, if do not exist, according to the temperature detecting, judge whether to adjust fan specification, if do not need, to fan governor 21, send speed-regulating instruction ambient temperature is adjusted in described preset temperature range, if desired adjust fan specification, first to fan governor 21, send specification select command, after fan governor 21 completes specification selection, to fan governor 21, send speed governing order again.Thereby, fan governor 21 carries out the selection of fan specification according to the specification select command receiving, according to speed governing order, determine that rotating speed in the speed range of this fan specification is to control drive circuit 23, realize the adjustment of the rotating speed of motor, thereby realize, for different ambient temperatures, carry out corresponding heat radiation.It should be noted that, the maximum value that ambient temperature surpasses described preset temperature range is more, and the rotating speed of motor is sooner 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, rotating speed for detection of described motor, detected rotating speed is sent to described fan governor 21, with described fan governor 21, according to described detected rotating speed, generates rotary speed information 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, until described fan governor 21, according to described detected rotating speed, generate after rotary speed information, the described rotary speed information generating 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 receiving and preset rotation speed scope (described preset rotation speed scope is for needing the rotating speed of predefined motor according to heat radiation), if not within the scope of preset rotation speed, SC system controller 11 sends speed governing order to fan governor 21, fan governor 21 is controlled drive circuit 23 to adjust the rotating speed of motor according to this speed governing order, meanwhile, by speed detect circuit 22, detect in real time the rotating speed of motor, thereby 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 sending speed governing order.
Preferably, speed detect circuit 22 detects the rotating speed of the rotor that motor comprises by Hall element, and then according to the tachometer of rotor, calculates the rotating speed of motor.
Preferably, by described rotary speed information, the FG/RD pin by fan interface 3 is sent to described SC system controller 11 to 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, according to described specification selection instruction, generate described specification select command 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, by intelligent data bus, carry out the data transmission between described SC system controller 11 and described upper-position unit; Wherein, described intelligent data bus comprises: 485 serial communication bus (RS-485Bus, RS485), Serial Peripheral Interface (SPI) (Serial Peripheral Interface, SPI) bus and Ethernet interface (Fast Ethernet, 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 a kind of composition structure of this system administration manager 1, for convenience of description, only shows 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 fans 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:
In the present embodiment, for being applied to different communication equipment, when needs switch fan specification, SC system controller 11 first sends specification select command to fan governor 21 and with fan governor 21, is switched to the fan specification of coupling, if motor is in running order, fan governor 21 is controlled drive circuit 23 to stop electric machine rotation, waits for speed governing order; Again according to concrete required heat radiation situation, in the speed range providing from the fan specification being switched to fan governor 21 to fan governor 21 transmission speed governing orders, select rotating speed, fan governor 21 generates pulse-width modulation PWM signal control drive circuit 23 to adjust the rotating speeds of motor according to the rotating speed of selecting.
Preferably, when communication apparatus powers on, SC system controller 11 generates specification select command according to the fan specification of acquiescence.The fan specification of described acquiescence is according to the maximum heat dissipating capacity of communication apparatus with to the power supply capacity of described fan and default.Described fan specification comprises the fan specification of described acquiescence.
As one embodiment of the invention, in order to keep temperature in communications equipment to remain in preset temperature range to keep communications equipment normally to work, described system administration manager 1 also comprises:
Ambient temperature detection circuit 12, be connected with described SC system controller 11, for detection of the ambient temperature in communications equipment, and described ambient temperature is sent to described SC system controller 11 with described SC system controller 11, according to described ambient temperature, determines whether to send described specification select command and/or described speed governing orders to described fan governor 21.
Particularly, ambient temperature detection circuit 12 adopts temperature transducer to detect the ambient temperature in communications equipment, the ambient temperature that SC system controller 11 detects according to ambient temperature detection circuit 12, judge that this ambient temperature is whether in described preset temperature range, if, do not adjust, if do not exist, according to the temperature detecting, judge whether to adjust fan specification, if do not need, to fan governor 21, send speed-regulating instruction ambient temperature is adjusted in described preset temperature range, if desired adjust fan specification, first to fan governor 21, send specification select command, after fan governor 21 completes specification selection, to fan governor 21, send speed governing order again.Thereby, fan governor 21 carries out the selection of fan specification according to the specification select command receiving, according to speed governing order, determine that rotating speed in the speed range of this fan specification is to control drive circuit 23, realize the adjustment of the rotating speed of motor, thereby realize, for different ambient temperatures, carry out corresponding heat radiation.It should be noted that, the maximum value that ambient temperature surpasses described preset temperature range is more, and the rotating speed of motor is sooner 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, according to described rotary speed information, determine whether to send described speed governing order to described fan governor 21, described rotary speed information is generated according to detected rotating speed by described fan governor 21, and the speed detect circuit 22 that described detected rotating speed is comprised by described fan 2 detects and obtains.
Particularly, until described SC system controller 11, by fan interface 3, receive after described rotary speed information, according to the rotary speed information receiving and preset rotation speed scope, proofread, if not within the scope of preset rotation speed, SC system controller 11 sends speed governing order to fan governor 21, fan governor 21 is controlled drive circuit 23 to adjust the rotating speed of motor according to this speed governing order, meanwhile, by speed detect circuit 22, detect in real time the rotating speed of motor, thereby 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 sending 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, according to described specification selection instruction, generate described specification select command 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 a kind of composition structure of this fan 2, for convenience of description, only shows 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:
In the present embodiment, heat radiation for different communication equipment needs, in the time of need to switching current fan specification, first fan governor 21 can receive the specification select command of SC system controller 11 transmissions to be switched to the fan specification of coupling, if motor is in running order, fan governor 21 is controlled drive circuit 23 to stop electric machine rotation, waits for speed governing order; Then according to concrete required heat radiation situation, first fan governor 21 can receive in the speed range that speed governing order provides with the fan specification from being switched to again and select rotating speed, according to the rotating speed of selecting, generates pulse-width modulation PWM signal control drive circuit 23 to adjust the rotating speeds of motor.
As one embodiment of the invention, in order to guarantee that the rotating speed of motor is to work within the scope of preset rotation speed, described fan 2 also comprises:
Speed detect circuit 22, be connected with described fan governor 21, rotating speed for detection of described motor, detected rotating speed is sent to described fan governor 21 and with described fan governor 21, according to described detected rotating speed, generates rotary speed information and described rotary speed information is sent to described SC system controller 11 by described fan interface 3, to be determined whether send described speed governing order and described rotary speed information is sent to upper-position unit to described fan governor 21 according to described rotary speed information by described SC system controller 11.
Particularly, until described fan governor 21, according to described detected rotating speed, generate after rotary speed information, the described rotary speed information generating 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 receiving and preset rotation speed scope, if not within the scope of preset rotation speed, SC system controller 11 sends speed governing order to fan governor 21, fan governor 21 is controlled drive circuit 23 to adjust the rotating speed of motor according to this speed governing order, meanwhile, by speed detect circuit 22, detect in real time the rotating speed of motor, thereby 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 sending 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 the another kind that Fig. 4 shows this system administration manager 1 forms structure, for convenience of description, only shows 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,
In the embodiment of the present invention four, program can comprise program-code, and described program-code comprises operational order.
The first fan interface 43, for sending specification select command and speed governing order to fan governor 21, receives the rotary speed information that fan governor 21 sends, and forwards this rotary speed information to upper-position unit.Described the 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 moves, described processor 41 makes described controller carry out following method for the program of execute store 42 storages:
Fan governor that processor 41 first comprises to described fan by described fan interface 3 21 sends that specification select commands are selected fan specification with described fan governor 21 according to described specification select command and according to the described fan specifications control drive circuit 23 of selecting, then to described fan governor 21, sends speed governing orders rotating speed to be provided in the speed range providing in described fan specification according to described speed governing order and to control described drive circuit 23 according to the rotating speed of selecting by described fan interface 3.
In order to keep temperature in communications equipment to remain in preset temperature range to keep communications equipment normally to work, when controller move, the program that described processor 41 is stored for execute store 42 makes described controller carry out following method:
embodiment five:
The fan 2 that the present embodiment provides is applicable to the fan control system that embodiment one provides, and the another kind that Fig. 5 shows this fan 2 forms structure, for convenience of description, only shows 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,
In the embodiment of the present invention five, program can comprise program-code, and described program-code comprises operational order.
The second fan interface 53, the specification select command and the speed governing order that for receiving system controller 11, send, send rotary speed information to described SC system controller 11.Described the 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 moves, described processor 51 makes described controller carry out following method for the program of execute store 52 storages:
Meanwhile, in order to guarantee that the rotating speed of motor is to work within the scope of preset rotation speed, speed detect circuit 22 detects the rotating speed of described motor, detected rotating speed is sent to described processor 51 and with described processor 51, according to described detected rotating speed, generates rotary speed information and described rotary speed information is sent to described SC system controller 11 by described fan interface 3, to be determined whether send described speed governing order and described rotary speed information is sent to upper-position unit to described processor 51 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 specification of coupling, to meet heat radiation needs to fan governor; In addition for concrete heat radiation situation, by sending speed governing order so that the rotating speed of motor is carried out to closed loop control to fan governor, the rotating speed that effectively guarantees motor is followed ambient temperature and becomes, effectively meet the heat radiation requirement of different communication equipment, can also allow communications equipment adapt to the working environment of different temperatures, practical, also hommization more.
Those of ordinary skills it is also understood that, the all or part of function realizing in above-described embodiment system is to come the hardware that instruction is relevant to complete by program, described program can be in being 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 without departing from the inventive concept of the premise some alternative or obvious modification that are equal to; and performance or purposes identical, all should be considered as belonging to the present invention by the definite scope of patent protection of submitted to claims.
Claims (10)
1. a fan control system, comprises system administration manager, comprises one or more fan interfaces, and comprise one or more fans, and 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, sends specification select command for the fan governor first comprising to described fan by described fan interface, then to described fan governor, sends speed governing order by described fan interface;
Described fan comprises:
Described fan governor, be connected with described drive circuit, for first receiving described specification select command by described fan interface, according to described specification select command, select fan specification, according to the described fan specifications control drive circuit of selecting, by described fan interface, receive described speed governing order again, in the speed range providing in described fan specification according to described speed governing order, select rotating speed, according to the rotating speed of selecting, control described drive circuit.
2. fan control system as claimed in claim 1, is characterized in that, described system administration manager also comprises:
Ambient temperature detection circuit, be connected with described SC system controller, for detection of the ambient temperature in communications equipment, and described ambient temperature is sent to described SC system controller with described SC system controller, according to described ambient temperature, determines whether to send described specification select command and/or described speed governing order to described fan governor.
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, rotating speed for detection of described motor, detected rotating speed is sent to described fan governor, with described fan governor, according to described detected rotating speed, generates rotary speed information and described rotary speed information is 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, according to described specification selection instruction, generate described specification select command 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 fans, 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, for the fan governor first comprising to described fan by described fan interface, send specification select command, with described fan governor, according to described specification select command, select fan specification and according to the described fan specifications control drive circuit of selecting, by described fan interface, to described fan governor, send speed governing order again, rotating speed to be provided in the speed range providing in described fan specification according to described speed governing order and to control described drive circuit according to the rotating speed of selecting.
6. system administration manager as claimed in claim 5, is characterized in that, described system administration manager also comprises:
Ambient temperature detection circuit, be connected with described SC system controller, for detection of the ambient temperature in communications equipment, and described ambient temperature is sent to described SC system controller, with described SC system controller, according to described ambient temperature, determine whether to send described specification select command and/or described speed governing order to described fan governor.
7. system administration manager as claimed in claim 6, is characterized in that, described system administration manager also comprises:
Described SC system controller, also for receiving rotary speed information by described fan interface, according to described rotary speed information, determine whether to send described speed governing order to described fan governor, described rotary speed information is generated according to detected rotating speed by described fan governor, and the speed detect circuit that described detected rotating speed is comprised by described fan detects and obtains.
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, according to described specification selection instruction, generate described specification select command 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, and described fan also comprises:
Fan governor, be connected with described drive circuit, for first receiving by described fan interface the specification select command that described SC system controller sends, according to described specification select command, select fan specification, according to the described fan specifications control drive circuit of selecting, by described fan interface, receive the speed governing order that described SC system controller sends again, in the speed range providing in described fan specification according to described speed governing order, select rotating speed, according to the rotating speed of selecting, control described drive circuit.
10. system administration manager as claimed in claim 9, is characterized in that, described fan also comprises:
Speed detect circuit, be connected with described fan governor, rotating speed for detection of described motor, detected rotating speed is sent to described fan governor, with described fan governor, according to described detected rotating speed, generate rotary speed information and described rotary speed information is sent to described SC system controller by described fan interface, to be determined whether send described speed governing order and described rotary speed information is sent to upper-position unit to described fan governor according to described rotary speed information by described SC system controller.
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