CN201953698U - Automatic rotating speed control system for multi-path fan of rack-mounted equipment - Google Patents
Automatic rotating speed control system for multi-path fan of rack-mounted equipment Download PDFInfo
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- CN201953698U CN201953698U CN2010206841934U CN201020684193U CN201953698U CN 201953698 U CN201953698 U CN 201953698U CN 2010206841934 U CN2010206841934 U CN 2010206841934U CN 201020684193 U CN201020684193 U CN 201020684193U CN 201953698 U CN201953698 U CN 201953698U
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Abstract
The utility model discloses an automatic rotating speed control system for a multi-path fan of rack-mounted equipment. The system comprises a power supply module, a system master control unit, a fan unit and a back panel, wherein the power supply module is used for supplying power to the control system to ensure the normal work of the system; the system master control unit is used for receiving the information transmitted from the fan unit, analyzing the monitoring information about of the temperature or the power consumption of all single-disks of the overall system, adjusting the speed rate configuration of each path of fan according to actual situations, and transmitting the configuration information to the fan unit; the fan unit receives the fan configuration information transmitted from the system master control unit, configuring the pulse width modulation (PWM) of the multi-path fan, and transmitting correspondingly output PWM waveform of each path to corresponding fans, simultaneously reporting relative information to the system master control unit, and configuring a state indicator lamp; and the back panel is respectively connected with the fan unit, the system master control unit, the system, other single-disks, and a power supply unit. By using the system, the real time, the flexibility, the reliability, the completeness and the practicability of the PWM fan control can be realized.
Description
Technical field
The utility model relates to communication, data capture and industrial control field, relate in particular to a kind of multichannel rotation speed of the fan automatic control system of rack-mount unit, be applicable to that the occasion that needs in the rack-mount unit multichannel fan to be carried out rotating speed control is provided with in the system of a plurality of fans with other.
Background technique
In recent years, along with improving constantly of user's access bandwidth demand, the fast development of communications industry, that communication products have also entered is multi-functional, high-performance and jumbo developing direction.Meanwhile, make that also the Overall Power Consumption of equipment is increasing, the equipment that adds is also more and more higher to the requirement of environmental suitability, therefore, the status of fan in system product also paid attention to gradually, and the requirement on performance, quantity and the controllability of fan is also improved constantly.On the other hand, promotion along with notions such as low-carbon (LC) and green energy conservations, equipment is also more and more higher to the requirement of power consumption and noise, reduce the equipment integral power consumption when reaching effective heat dispersion again and reduce the noise of equipment, the flexible rotating speed control of fan has been seemed extremely important and urgent.
Multichannel fan control system commonly used at present can only be to the multiplex pulse width modulated (PWM in the system, Pulse Width Modulation) fan is unified configuration, one road pwm signal promptly is provided, pass through the module delay process or directly offer the multi-channel PWM fan, carry out rate configuration fan.If in the time of need revising, then the speed of all fans is also all changed, therefore can not dispose separately respectively by carrying out nimbly and freely.System's each several part to the fan arrangement demand differ to the time, can't allocate flexibly.Do not design the interactive function of multichannel fan and CPU simultaneously because of system, the running state of the every transportation work style fan of the monitoring that CPU can't be real-time, when running into certain transportation work style fan operational failure, system can't in time obtain situations such as fan running information.In addition, what the most existing fan rotary speed control system adopted is the rotating speed control of classification stepping, can't realize the stepless speed regulation of fan, and the rotating speed of system fan promptly can not be set arbitrarily.Also have, present most of fan rotary speed control system is only adjusted rotation speed of the fan according to the temperature of a temperature detecting point in the system, can't adjust rotation speed of the fan in real time according to the temperature of any groove position single-deck.
Therefore be necessary, a kind of multichannel rotation speed of the fan automatic control system that is fit to big-and-middle-sized electronics, communication rack-mount unit is provided on the prior art basis, can need not too much human intervention, dispose the rotating speed of each transportation work style fan automatically flexibly, simultaneity factor also can be monitored the working order of fan in real time.
The model utility content
In view of this, main purpose of the present utility model is to provide a kind of multichannel rotation speed of the fan automatic control system of rack-mount unit, do not need human intervention, can dispose the rotating speed of each transportation work style fan automatically, realize the real-time, flexibility, reliability of control, the purpose of comprehensive and practicability.Promptly in the rack system, system CPU passes through backboard, automatically monitor every transportation work style fan in the multichannel fan according to the temperature of each single-deck of system or power consumption information, and do not influence the rotating speed of other fans, reach rotation speed of the fan adjustment and rotation speed of the fan simultaneously to obtain and alarm the real-time of obtaining; Can realize the stepless speed regulation and the real-time rotating speed of fan are obtained, reach the flexibility of rotation speed of the fan control; The temperature and the power consumption information of each several part in can supervisory system be adjusted rotation speed of the fan according to a plurality of monitoring points information, realize the comprehensive of rotation speed of the fan control.
For achieving the above object, the technical solution of the utility model is achieved in that
A kind of multichannel rotation speed of the fan automatic control system of rack-mount unit, this fan control system mainly comprises: fan unit, system master unit, backboard and power subsystem; Wherein,
Described power module is this control system power supply, and the assurance system can proper functioning;
Described system master unit, system CPU is received the information that described fan unit sends, and to the analysis of the monitor message of the temperature of all single-decks of whole system or power consumption, and according to real-time condition, adjust each transportation work style fan rate configuration, again configuration information is sent to the MCU of described fan unit;
Described fan unit, the fan arrangement information that the receiving system main control unit transmits, PWM to the multichannel fan is configured, the PWM waveform of correspondence being exported every road sends corresponding fan to, simultaneously to the speed waveform sample, the every transportation work style fan of counting statistics, monitoring rate value and PWM dispose the difference between the corresponding rotating speed nominal value, with every transportation work style fan rotating speed statistical value, fan stall and the unusual situation of fan speed revolution, real-time report system master unit, and configuration status tutorial light;
Described backboard connects fan unit, system master unit, other single-decks of system and power subsystem respectively, is the mutual interface of signal between each unit module.
Wherein, this system further comprises other single-decks of system, and it comprises temperature and power consumption monitoring cell, can send temperature monitoring information and power consumption Monitoring Data to described fan unit by backboard by linking to each other with described backboard.
Described system master unit further comprises system CPU, temperature and power consumption monitoring cell.
Described fan unit further comprises fan control circuitry, reset circuit, EEPROM EEPROM and the status indicator lamp that links to each other with described micro-control unit MCU; The PWM fan links to each other with MCU by fan control circuitry; Described fan unit can be monitored a plurality of PWM fans by MCU is independent, and according to the rotating speed setting of receiving system CPU and the rotating speed and the status information of the every transportation work style fan of Real-time Notification system CPU.
Described fan control circuitry further comprises Twin channel optocoupler, divider resistance, pull-up resistor, filter capacitor, reference diode, fusible link, inductance and TVS pipe; This fan control circuitry is corresponding one by one with the PWM fan, corresponding one road PWM fan of each transportation work style fan control circuit, and the PWM duty cycle pulse waveform that this fan control circuitry generates the MCU that is attached thereto sends every transportation work style fan to; Simultaneously, MCU also obtains the operation information of every road PWM by this fan control circuitry, and the reporting system control unit.
In the described fan control circuitry,, be used for cancellation transient peak burr, surge and stable PWM waveform, and reduce fan noise for further comprising filter capacitor and reference diode and divider resistance on every road pwm signal and the SPEED signal circuit.
Wherein, described MCU further comprise initialization module, obtain configuration module, fan arrangement module, revolution speed calculating module and fan monitoring module; Wherein,
The initialization module of described MCU is used for the initial configuration to the MCU interface, and the PWM value of each road PWM fan is carried out initial configuration;
The described configuration module that obtains is used for the MCU Configuration Values of the PWM by obtaining every transportation work style fan from EEPROM earlier, and is used for MCU and obtains the configuration information of system CPU to every road PWM fan by backboard;
Described fan arrangement module, be used for MCU obtains each transportation work style fan earlier from EEPROM PWM Configuration Values, carry out the CRC check computing, verification is passed through, then dispose each road PWM fan, otherwise dispose each road PWM fan by the predetermined configurations value by the PWM Configuration Values of storing in the EEPROM;
Described revolution speed calculating module, monitoring module after being used for MCU and disposing each transportation work style fan, are enabled timer, and the speed SPEED waveform of each road PWM fan is sampled, counted.
Wherein, the input/output interface I/O interface of described MCU can be configured to the PWM output mode.
The last system layout PWM value of storage is carried out the CRC check computing earlier among the described EEPROM during use, and verification is passed through, and then disposes each road PWM fan by the PWM Configuration Values of storing in the EEPROM, otherwise disposes each road PWM fan by the predetermined configurations value.
The multichannel rotation speed of the fan automatic control system of rack-mount unit provided by the utility model has the following advantages:
This system does not need human intervention, can be configured the operation conditions of monitoring fan that also can be real-time automatically to each transportation work style fan automatically according to the real time temperature or the power information of all single-decks in the monitoring system.CPU not only can obtain the fan stop state in real time also can monitor fan near situation about losing efficacy and give warning in advance in real time according to the failure mechanism of fan.Simple and easy, the safety of this system module, principle is clear and system architecture is simple, and is with low cost, is applicable to the rack-mount unit of big-and-middle-sized electronic product, communication product or is provided with in the system of multichannel fan.
Description of drawings
Fig. 1 a is the perpendicular open frame schematic representation of inserting of the multichannel rotation speed of the fan automatic control system of rack-mount unit;
Fig. 1 b is the transverse-plug type frame schematic representation of the multichannel rotation speed of the fan automatic control system of rack-mount unit;
Fig. 2 is the hardware block diagram of the multichannel rotation speed of the fan automatic control system of the utility model rack-mount unit;
Fig. 3 is a fan control circuitry hardware block diagram of the present utility model;
Fig. 4 is the functional block diagram of MCU of the present utility model;
Fig. 5 is the flow chart of MCU fan arrangement of the present utility model;
Fig. 6 is the flow chart of MCU monitoring wind speed of the present utility model;
Embodiment
Below in conjunction with accompanying drawing and embodiment of the present utility model this novel automatic control system is described in further detail.
Shown in Fig. 1 a and Fig. 1 b, this entire system Organization Chart has two kinds of forms, and a kind of is the perpendicular formula of inserting, and a kind of is transverse-plug type.The perpendicular formula of inserting is meant that fan unit is that accumbency is at the chassis equipment top, in all perpendicular space slot that is inserted between blades bottom and the frame bottom of other circuit single-decks of system; Transverse-plug type is meant that fan unit is the left side of side at chassis equipment, in the horizontal space slot that is inserted between blades bottom and the frame bottom of other circuit single-decks.Mainly comprise whole frame 100, fan system 101, status indicator lamp 102 and n circuit single-deck 103, described fan system, i.e. multichannel rotation speed of the fan automatic control system.
Fig. 2 is the hardware block diagram of the multichannel rotation speed of the fan automatic control system of the utility model rack-mount unit, as shown in Figure 2, this automatic control system is mainly by five most of compositions: fan unit 200, system master unit 201, backboard 207, other single-decks 209 of system and power module 211.
Wherein, power module 211 is used to whole system power supply, all the electronic component proper functioning in the assurance system.
Wherein, fan unit 200 further comprises: PWM fan 202, fan control circuitry 203, micro-control unit (MCU) 204, reset circuit 205, EEPROM (EEPROM) 206 and status indicator lamp 208.It can be monitored a plurality of fans by MCU204 is independent, and does not need system CPU more to participate in, and only needs the rotating speed setting of receiving system CPU and the rotating speed and the status information of the every transportation work style fan of Real-time Notification system CPU.System CPU can be fanned according to every transportation work style that the temperature or the power consumption information of each single-deck of system are monitored in the multichannel fan automatically; CPU not only can obtain the fan stop state in real time also can monitor fan near situation about losing efficacy and give warning in advance in real time according to the failure mechanism of fan.Its groundwork is: the fan arrangement information of receiving system CPU, and PWM is configured to the multichannel fan, and the PWM waveform on the every road of corresponding output sends corresponding fan to.Simultaneously to the speed waveform sample, the every transportation work style fan of counting statistics, monitoring rate value and PWM dispose the difference between the corresponding rotating speed nominal value, with every transportation work style fan rotating speed statistical value, fan stall and fan speed revolution abnormal conditions, energy real-time report CPU, and configuration status tutorial light.
Described PWM fan 202 is fan type that arrive commonly used at present, can control the rotating speed of PWM fan by the dutycycle (Duty Cycle) that changes pulse signal.Dutycycle is big more, and the time of circuit debugging is just long more, and the rotating speed of fan is just fast more, otherwise dutycycle is more little, and then rotation speed of the fan is slow more.
Described fan control circuitry 203, it further is made up of components and parts such as optocoupler, filter capacitor, reference diode, inductance and resistance.Correct and the stable commentaries on classics of fan SPEED signal of this fan control circuitry 203 can be passed to this MCU, fan is passed in the correct and stable commentaries on classics of the pwm signal that MCU is provided simultaneously, makes fan and MCU all can obtain correct waveform signal.The PWM waveform stabilization can reduce fan noise simultaneously.
Described micro-control unit (MCU) 204, the fan arrangement information of receiving system CPU208 is configured multi-channel PWM fan 202, the PWM waveform on the every road of corresponding output.Simultaneously to the speed waveform sample, the every transportation work style fan of counting statistics, monitoring rate value and PWM dispose the difference between the corresponding rotating speed nominal value, with every transportation work style fan rotating speed statistical value, fan stall and fan speed revolution abnormal conditions, energy real-time report CPU 208, and configuration status tutorial light 107.
Described reset circuit 205 is used to control MCU 204 and resets.
Described EEPROM 206 is mainly used in the last system layout PWM value of storage, and after system restart, 202 on every transportation work style fan can be according to the PWM configuration effort of EEPROM 206 storages.
Wherein, system master unit 201 further comprises: system CPU 210, temperature and power consumption monitoring cell 212.This CPU210 receives the information that fan control system sends, and to the analysis of the monitor message of the temperature of all single-decks of whole system or power consumption, can adjust each transportation work style fan rate configuration flexibly according to real-time condition, and configuration information is sent to MCU204.
Wherein, backboard 207 connects fan unit 200, system master unit 201, other single-decks 209 of system, power subsystem 211 respectively, is the mutual bridge of signal between each unit module; Also be that MCU204 and system master unit 201, other single-decks 209 of system carry out the mutual interface card of signal.System CPU 210 is by after carrying out the monitoring of temperature or power consumption to whole system equipment, obtain the temperature or the power consumption information of each single-deck of system, and, send configuration information to MCU 204 by backboard 207 according to real-time Monitoring Data, every transportation work style fan is independently disposed flexibly.The working order that MCU 204 also will monitor every transportation work style fan in real time sends CPU210 to by backboard 207 timely.Can basis, will send MCU to the configuration information of every transportation work style fan by backboard; MCU also will dispose the back by backboard the information such as speed that the rotation speed of the fan waveform is sampled, each transportation work style of counting statistics is fanned will be sent to CPU.
Wherein, other single-decks 209 of system further comprise temperature and power consumption monitoring cell 212.
As mentioned above, MCU204 is the core devices of this system: power on, initial configuration 4 tunnel (or N road) fan speed is provided with the pwm signal waveform; Speed waveform to every transportation work style fan is sampled, is counted, statistics fan speed value, and the configuration status tutorial light reports CPU; Receive the configuration information of CPU, the configuration fan.This MCU further comprises: a system initialization module: initialization MCU, and the PWM Configuration Values that correctly obtains access in the EEPROM, dispose every transportation work style fan; The sampling of one rotating speed, counting module: the SPEED waveform of every transportation work style fan of sampling, and statistics revolution.The automatic monitoring module of one fan: obtain CPU PWM disposed, and the revolution value of obtaining in real time, monitor the operation of every transportation work style fan whether normally, whether stall, situation configuration status tutorial light in the time of factually.
Fig. 3 is a fan control circuitry hardware block diagram of the present utility model, as shown in Figure 3, this fan control circuitry mainly comprises components and parts such as Twin channel optocoupler 300, divider resistance 301, pull-up resistor 302, filter capacitor 303, reference diode 304, fusible link 305, inductance 306 and TVS pipe 307.
This fan control circuitry and PWM fan are one to one, the corresponding transportation work style fan of each transportation work style fan control circuit module.Fan control circuitry hardware is the part of comparison key, be that PWM fan 202 obtains stable and correct PWM duty cycle pulse waveform, and MCU obtains the basis of correct and stable SPEED waveform.Have only that PWM duty cycle pulse waveform that MCU generates is distortionless by the fan control circuitry module stability to send every transportation work style fan to, every transportation work style fan could be according to the configuration of MCU, stable and running uniformly.Simultaneously MCU obtains the SPEED waveform of distortionless fan by the fan control circuitry module, carry out counting statistics, accurately the configuration status tutorial light, accurately the every transportation work style of apprizing system CPU is fanned real operation conditions.For reaching this purpose, in this circuit module: fusible link 305, inductance 306, TVS pipe 307 and-48V GND is used for guaranteeing that fan can normally move, for fan provides stabilized power source and earth signal.Because of the magnitude of voltage of PWM fan and MCU inconsistent, and mutual between fan and the MCU be two paths of signals, in control circuit, used Twin channel optocoupler 300, isolate conducting, also can isolate some less transient state burrs simultaneously.In the pwm pulse waveform transformation, except being provided with pull-up resistor 302, for guaranteeing to input to the pwm signal of fan, electric current, magnitude of voltage meet the attribute specification of fan pwm signal, are provided with divider resistance 301 and zener diode 304.Pwm signal is accurate, stable, then can reduce the noise of fan operation.In the SPEED waveform transformation, the effect of divider resistance 301 and filter capacitor 303 seems particularly important.Divider resistance 303, too small as if being provided with, damage optocoupler easily, perhaps influence the working life of optocoupler; If it is high during to certain speed that the excessive fan speed that causes easily is set, can't close optocoupler, optocoupler always stays open state, and the SPEED signal that causes MCU to get access to all is low levels, influences SPEED waveform sampling, counting, statistics.So,, must select suitable divider resistance according to selected fan.The SPEED waveform that the PWM fan produces, frequency is not high, but the burr spike that transient state produces is bigger, if do not filter or filter not thorough, then can cause the wave distortion of MCU sampling, the speed error of counting statistics is very big, can't accurately add up the actual revolution of every transportation work style fan, finally then can cause, system can't monitor the actual operating state of every transportation work style fan in real time accurately.At fan SPEED waveform, low frequency, the characteristic that the burr spike is bigger is selected the bigger tantalum electric capacity of appearance value.
Fig. 4 is the functional block diagram of MCU of the present utility model, shown in Fig. 4 (in conjunction with Fig. 2), in the function module of the MCU of this control system shown in Figure 2, MCU 401 comprises: a MCU initialization module 402, one obtains configuration module 403, one fan arrangement module, 404, one revolution speed calculating modules, 405, one fan monitoring modules 406; Wherein,
Described MCU initialization module 402 is used for the initial configuration to MCU 204 interfaces, and the PWM value of each road PWM fan 202 carried out initial configuration, for preventing that each transportation work style fan from all starting, the peak value moment sharp increase of the totalling power supply signal that produces, cause system power supply signal moment low excessively, the situation of system's cisco unity malfunction is taken place, the initialization rate configuration of each road PWM fan 202 is become lowest speed, promptly PWM is configured to minimum value 0% dutycycle.
The described configuration module 403 that obtains is used for MCU 204 Configuration Values of the PWM by obtaining every transportation work style fan from EEPROM 206 earlier.After obtain the configuration information of 210 pairs of every roads of system CPU PWM fan 202 by backboard 207 as MCU 204.
Described fan arrangement module 404, after being used for MCU 204 and obtaining the PWM Configuration Values of each transportation work style fan 202 from EEPROM 206 earlier, correct for guaranteeing the every road Configuration Values that obtains, must be earlier the PWM Configuration Values of all fans of taking out be carried out the CRC check computing, verification is passed through, then the PWM Configuration Values by 206 li storages of EEPROM disposes each road PWM fan 202, otherwise disposes each road PWM fan 202 by the predetermined configurations value.Then, when the configuration information that has obtained system CPU 210, be similarly and guarantee that the configuration obtain is accurate, must be earlier PWM Configuration Values by all fans of obtaining carry out the verification computing and pass through, the Configuration Values that sends by system CPU 210 is fanned 202 to each transportation work style and is configured.Otherwise, do not change the PWM configuration of each road PWM fan 202.
Described revolution speed calculating module 405, monitoring module 406 are enabled timer after being used for each transportation work style fan of MCU 204 configurations, and the speed SPEED waveform of each road PWM fan 202 is sampled, counted.Add up the statistic of the speed of each transportation work style fan, analyze the operation conditions that each transportation work style is fanned according to the PWM Configuration Values of every road configuration and the corresponding relation of speed SPEED.And according to the runnability of all fans: normal, stall, the incorrect three kinds of situations of revolution, the illuminating state tutorial light is to show system running state.Statistical information with every road sends system CPU 210 to by backboard 207 simultaneously.After CPU 210 has obtained fan information, the configuration information that upgrades is sent to MCU 204, MCU 204 obtains configuration, repeats to obtain the work of configuration module 403.If CPU 210 does not upgrade configuration information, then MCU 204 does not obtain new configuration information, then can forward revolution speed calculating module 405 operation to, several big modules of MCU operation of constantly repeating, going round and beginning again like this is exactly the method for this rack-mount unit multichannel rotation speed of the fan automatic control system operation.
The most crucial part of native system is exactly to obtain configuration module 403, fan arrangement module 404, revolution speed calculating module 405, monitoring module 406 these four modules.
Following elder generation decomposes in detail and obtains configuration module 403 and fan arrangement module 404 with reference to Fig. 5.With reference to Fig. 6, decompose revolution speed calculating module 305, monitoring module 306 in detail then.
The flow chart of the MCU configuration fan of the new routine multichannel rotation speed of the fan automatic control system of this practicality as shown in Figure 5 comprises:
System CPU 210 transmission information are obtained in step 503, monitoring in real time, and the configuration information of system CPU 210 is corresponding respectively each transportation work style fan configuration.
Step 504, receive the configuration information that system CPU 210 sends after, carry out CRC check by configuration information to results.After the verification succeeds, every transportation work style fan is configured by the CPU information of obtaining separately respectively, meanwhile with the configuration information of every road PWM fan 202, and generates a check code, and deposits among the EEPROM.Otherwise, do not change stored configuration information among PWM fan 202, the EEPROM, fan is by former configuration operation; When not receiving the fan arrangement information that system CPU 210 sends, all keep configuration before this.
The work of step 505, repeating step 503.
Fig. 6 is the flow chart of MCU monitoring wind speed of the present utility model, and as shown in Figure 6, this flow process comprises:.
Step 606, according to the statistical number of every road SPEED, carry out the monitoring of fan running state.The PWM dutycycle 0%-100% of PWM fan all has the nominal of a speed revolution corresponding with it, and dutycycle is low more, and its rate corresponding revolution is few more, and promptly during dutycycle 0%, the speed of fan is minimum.Judge whether rotation speed of the fan normally then judges that according to the actual measurement and the judgment formula of nominal revolution formula is: actual measurement rate value and PWM rotating speed nominal value (1-+ tolerance %) compare.In case actual measurement rate value＜0% nominal value * (1-tolerance %), then be decided to be stall, status indicator lamp: ACT extinguishes, and ALAM sends out a warning.PWM rotating speed nominal value (1-tolerance %)＜=actual measurement rate value＜=PWM rotating speed nominal value (1+ tolerance %): fan moves just often, and status indicator lamp ACT gives a green light, and the ALAM lamp extinguishes; The actual measurement rate value has exceeded the scope of PWM rotating speed nominal value (1-+ tolerance %): the fan operation is improper, and status indicator lamp: ACT gives a green light, the bright orange lamp of ALAM.Can be easy to monitor the operation conditions of fan according to status indicator lamp like this.
MCU enables timer after having disposed each transportation work style fan, the SPEED waveform of each transportation work style fan of sampling, statistics, counting.After regularly finishing, the timeing closing device.The SPEED count value is monitored, compared.Every road revolution in certain margin of error of revolution nominal value, for normally, the configuration status tutorial light; There is one or more revolution to exceed in the margin of error, the improper alarm of revolution, configuration status tutorial light; One or more revolution is arranged less than a certain revolution value or stall, the stall alarm, the configuration status tutorial light (normal state, ACT gives a green light; The improper alarm of revolution, ACT gives a green light, ALAM bright orange lamp; The stall alarm, the ACT lamp goes out, ALAM sends out a warning).And, all send system CPU to each road revolution information and warning information.
Continuous like this going round and beginning again, dispose PWM fan, sample count SPEED, some tutorial light, transmission information, obtain information, dispose the PWM fan, then realized design object of the present utility model, like this, both can dispose each transportation work style fan speed flexibly, can monitor each transportation work style fan runnability again in real time, and need artificial the interference hardly, not only easy but also flexible.
The above is preferred embodiment of the present utility model only, is not to be used to limit protection domain of the present utility model.
Claims (9)
1. the multichannel rotation speed of the fan automatic control system of a rack-mount unit is characterized in that this fan control system mainly comprises: fan unit, system master unit, backboard and power subsystem; Wherein,
Described power module is this control system power supply, and the assurance system can proper functioning;
Described system master unit, system CPU is received the information that described fan unit sends, and to the analysis of the monitor message of the temperature of all single-decks of whole system or power consumption, and according to real-time condition, adjust each transportation work style fan rate configuration, again configuration information is sent to the MCU of described fan unit;
Described fan unit, the fan arrangement information that the receiving system main control unit transmits, PWM to the multichannel fan is configured, the PWM waveform of correspondence being exported every road sends corresponding fan to, simultaneously to the speed waveform sample, the every transportation work style fan of counting statistics, monitoring rate value and PWM dispose the difference between the corresponding rotating speed nominal value, with every transportation work style fan rotating speed statistical value, fan stall and the unusual situation of fan speed revolution, real-time report system master unit, and configuration status tutorial light;
Described backboard connects fan unit, system master unit, other single-decks of system and power subsystem respectively, is the mutual interface of signal between each unit module.
2. the multichannel rotation speed of the fan automatic control system of rack-mount unit according to claim 1, it is characterized in that, this system further comprises other single-decks of system, it comprises temperature and power consumption monitoring cell, can send temperature monitoring information and power consumption Monitoring Data to described fan unit by backboard by linking to each other with described backboard.
3. the multichannel rotation speed of the fan automatic control system of rack-mount unit according to claim 1 is characterized in that, described system master unit further comprises system CPU, temperature and power consumption monitoring cell.
4. the multichannel rotation speed of the fan automatic control system of rack-mount unit according to claim 1, it is characterized in that described fan unit further comprises fan control circuitry, reset circuit, EEPROM EEPROM and the status indicator lamp that links to each other with described micro-control unit MCU; The PWM fan links to each other with MCU by fan control circuitry; Described fan unit can be monitored a plurality of PWM fans by MCU is independent, and according to the rotating speed setting of receiving system CPU and the rotating speed and the status information of the every transportation work style fan of Real-time Notification system CPU.
5. the multichannel rotation speed of the fan automatic control system of rack-mount unit according to claim 4, it is characterized in that described fan control circuitry further comprises Twin channel optocoupler, divider resistance, pull-up resistor, filter capacitor, reference diode, fusible link, inductance and TVS pipe; This fan control circuitry is corresponding one by one with the PWM fan, corresponding one road PWM fan of each transportation work style fan control circuit, and the PWM duty cycle pulse waveform that this fan control circuitry generates the MCU that is attached thereto sends every transportation work style fan to; Simultaneously, MCU also obtains the operation information of every road PWM by this fan control circuitry, and the reporting system control unit.
6. the multichannel rotation speed of the fan automatic control system of rack-mount unit according to claim 5, it is characterized in that, in the described fan control circuitry, for further comprising filter capacitor and reference diode and divider resistance on every road pwm signal and the SPEED signal circuit, be used for cancellation transient peak burr, surge, with stable PWM waveform, and reduce fan noise.
7. the multichannel rotation speed of the fan automatic control system of rack-mount unit according to claim 4 is characterized in that, described MCU further comprises initialization module, obtains configuration module, fan arrangement module, revolution speed calculating module and fan monitoring module; Wherein,
The initialization module of described MCU is used for the initial configuration to the MCU interface, and the PWM value of each road PWM fan is carried out initial configuration;
The described configuration module that obtains is used for the MCU Configuration Values of the PWM by obtaining every transportation work style fan from EEPROM earlier, and is used for MCU and obtains the configuration information of system CPU to every road PWM fan by backboard;
Described fan arrangement module is used for MCU obtains each transportation work style fan earlier from EEPROM PWM Configuration Values, carries out the CRC check computing, and verification is passed through, and then disposes each road PWM fan by the PWM Configuration Values of storing in the EEPROM, otherwise disposes each road PWM fan by the predetermined configurations value;
Described revolution speed calculating module, monitoring module after being used for MCU and disposing each transportation work style fan, are enabled timer, and the speed SPEED waveform of each road PWM fan is sampled, counted.
8. the multichannel rotation speed of the fan automatic control system of rack-mount unit according to claim 7 is characterized in that, the input/output interface I/O interface of described MCU can be configured to the PWM output mode.
9. according to the multichannel rotation speed of the fan automatic control system of the described rack-mount unit of claim 4, it is characterized in that, the last system layout PWM value of storage among the described EEPROM, carry out CRC verification computing during use earlier, verification is passed through, then dispose each road PWM fan, otherwise dispose each road PWM fan by the predetermined configurations value by the PWM Configuration Values of storing in the EEPROM.
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| CN2010206841934U CN201953698U (en) | 2010-12-28 | 2010-12-28 | Automatic rotating speed control system for multi-path fan of rack-mounted equipment |
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| CN2010206841934U CN201953698U (en) | 2010-12-28 | 2010-12-28 | Automatic rotating speed control system for multi-path fan of rack-mounted equipment |
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| CN2010206841934U Expired - Lifetime CN201953698U (en) | 2010-12-28 | 2010-12-28 | Automatic rotating speed control system for multi-path fan of rack-mounted equipment |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102434479A (en) * | 2011-11-15 | 2012-05-02 | 浪潮电子信息产业股份有限公司 | Constant temperature energy-saving control method in rack type server case |
| CN102900689A (en) * | 2012-11-13 | 2013-01-30 | 上海斐讯数据通信技术有限公司 | Fan speed regulation warning system |
| CN103016381A (en) * | 2012-12-12 | 2013-04-03 | 曙光信息产业股份有限公司 | Fan speed-regulating system for server |
| CN103375420A (en) * | 2012-04-28 | 2013-10-30 | 鸿富锦精密工业（深圳）有限公司 | Equipment cabinet system and fan control system and control method thereof |
| CN104102313A (en) * | 2014-08-04 | 2014-10-15 | 浪潮电子信息产业股份有限公司 | Energy-saving and noise-reduction server fan regulation and control method |
| WO2015172597A1 (en) * | 2014-05-15 | 2015-11-19 | 中兴通讯股份有限公司 | Method and system for controlling multiple blowers |
| CN105353323A (en) * | 2015-11-19 | 2016-02-24 | 浪潮电子信息产业股份有限公司 | Detection apparatus, and fan detection system and method |
| CN107484396A (en) * | 2017-09-15 | 2017-12-15 | 沈阳铁路信号有限责任公司 | Fan coolling module is monitored for what subway was downloaded from autocontrol system rack |
| CN109140695A (en) * | 2017-06-15 | 2019-01-04 | 山洋电气株式会社 | The automatic control system of cooling fan and the automatic control device of cooling fan |
| CN109139528A (en) * | 2018-09-25 | 2019-01-04 | 东莞市觅智实业有限公司 | A kind of fan detection system and detection method |
| CN109162954A (en) * | 2018-11-06 | 2019-01-08 | 迈普通信技术股份有限公司 | A kind of fan control device |
| CN110594177A (en) * | 2018-06-12 | 2019-12-20 | 沃尔缇夫能源***公司 | Fan fault early warning method and device for power supply system |
| CN111120383A (en) * | 2019-12-28 | 2020-05-08 | 苏州浪潮智能科技有限公司 | Control method and control device for equipment fan, switch and storage medium |
| CN113032210A (en) * | 2021-03-10 | 2021-06-25 | 中科长城海洋信息***有限公司长沙分公司 | Server fan self-adaptive control method and control system thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102434479A (en) * | 2011-11-15 | 2012-05-02 | 浪潮电子信息产业股份有限公司 | Constant temperature energy-saving control method in rack type server case |
| CN103375420A (en) * | 2012-04-28 | 2013-10-30 | 鸿富锦精密工业（深圳）有限公司 | Equipment cabinet system and fan control system and control method thereof |
| CN102900689A (en) * | 2012-11-13 | 2013-01-30 | 上海斐讯数据通信技术有限公司 | Fan speed regulation warning system |
| CN102900689B (en) * | 2012-11-13 | 2016-02-24 | 上海斐讯数据通信技术有限公司 | A kind of fan speed-regulating alarm system |
| CN103016381A (en) * | 2012-12-12 | 2013-04-03 | 曙光信息产业股份有限公司 | Fan speed-regulating system for server |
| CN103016381B (en) * | 2012-12-12 | 2016-02-10 | 曙光信息产业股份有限公司 | Server fan speed control system |
| WO2015172597A1 (en) * | 2014-05-15 | 2015-11-19 | 中兴通讯股份有限公司 | Method and system for controlling multiple blowers |
| CN104102313A (en) * | 2014-08-04 | 2014-10-15 | 浪潮电子信息产业股份有限公司 | Energy-saving and noise-reduction server fan regulation and control method |
| CN105353323A (en) * | 2015-11-19 | 2016-02-24 | 浪潮电子信息产业股份有限公司 | Detection apparatus, and fan detection system and method |
| CN109140695A (en) * | 2017-06-15 | 2019-01-04 | 山洋电气株式会社 | The automatic control system of cooling fan and the automatic control device of cooling fan |
| TWI770194B (en) * | 2017-06-15 | 2022-07-11 | 日商山洋電氣股份有限公司 | Cooling fan automatic control system and cooling fan automatic control device |
| CN107484396A (en) * | 2017-09-15 | 2017-12-15 | 沈阳铁路信号有限责任公司 | Fan coolling module is monitored for what subway was downloaded from autocontrol system rack |
| CN110594177A (en) * | 2018-06-12 | 2019-12-20 | 沃尔缇夫能源***公司 | Fan fault early warning method and device for power supply system |
| CN109139528A (en) * | 2018-09-25 | 2019-01-04 | 东莞市觅智实业有限公司 | A kind of fan detection system and detection method |
| CN109139528B (en) * | 2018-09-25 | 2024-03-22 | 东莞市觅智智能家居有限公司 | Fan detection system and detection method |
| CN109162954A (en) * | 2018-11-06 | 2019-01-08 | 迈普通信技术股份有限公司 | A kind of fan control device |
| CN109162954B (en) * | 2018-11-06 | 2020-04-03 | 迈普通信技术股份有限公司 | Fan control device |
| CN111120383A (en) * | 2019-12-28 | 2020-05-08 | 苏州浪潮智能科技有限公司 | Control method and control device for equipment fan, switch and storage medium |
| CN113032210A (en) * | 2021-03-10 | 2021-06-25 | 中科长城海洋信息***有限公司长沙分公司 | Server fan self-adaptive control method and control system thereof |
| CN113032210B (en) * | 2021-03-10 | 2022-07-12 | 中科长城海洋信息***有限公司长沙分公司 | Server fan self-adaptive control method and control system thereof |
| CN114734847A (en) * | 2022-05-17 | 2022-07-12 | 永联智慧能源科技(常熟)有限公司 | Fan speed regulation control method and related device |
| CN114734847B (en) * | 2022-05-17 | 2023-07-18 | 永联智慧能源科技(常熟)有限公司 | Fan speed regulation control method and related device |
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