CN1925315A - Method and device for realizing real-time control of motor rotation speed - Google Patents
Method and device for realizing real-time control of motor rotation speed Download PDFInfo
- Publication number
- CN1925315A CN1925315A CNA2006100625982A CN200610062598A CN1925315A CN 1925315 A CN1925315 A CN 1925315A CN A2006100625982 A CNA2006100625982 A CN A2006100625982A CN 200610062598 A CN200610062598 A CN 200610062598A CN 1925315 A CN1925315 A CN 1925315A
- Authority
- CN
- China
- Prior art keywords
- motor
- rotation speed
- revolution
- time control
- speed
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Images
Abstract
This invention discloses one real time control motor rotation speed method, which comprises the following steps: a, pre-setting expectation motor rotation speed; b, circle testing motor real rotation speed and feeding it back to micro processor for comparing; c, triggering motor rotation speed according to compare results to control orders. This invention provides the device, which comprises micro process 100, synchronous test unit 200 and voltage control unit 300, wherein, the micro processor comprises motor rotation speed memory unit, compare unit and control order trigger unit to realize real time monitor through interacting of information process.
Description
Technical field
The present invention relates to the electromechanical field, relate in particular to a kind of device of realizing real-time control of motor rotation speed.
Background technology
Because the requirement of office automation and confidentiality, shredder has entered in our office application, and existing shredder all can produce certain noise when no-load running or crossing paper, excessive noise can influence the deskman, is unfavorable for safeguarding good working environment.
Usually the shredder that adopts comprises cabinet, cone breaker device and support top cover three parts, when facing the shredder startup equally, for the six-freedom degree of rigid body, only solved the shock-absorbing of one degree of freedom, be screwed cabinet and cone breaker device then is rigidly connected especially, can produce when revolution than big bang and sympathetic response noise, therefore the external world need bear noise excessive and interference that cause.
Unloaded or a small amount of when crossing paper in order to solve shredder, electro-motor rotates the bigger problem of noise that is produced, and many employing springs add rubber, avoid cone breaker device directly to contact with cabinet, and this have certain improvement to sound, but effect is not remarkable yet; Shredder sound is mainly derived from the sound that cooperates of motor and 2# tooth, and for improving sound, people do not stint the 2# tooth is adopted gear hobbing, and the mode of this employing gear hobbing has certain improvement to sound, but DeGrain.
Up-to-date solution is to utilize the rubber screw to replace conventional metallic screw, promptly with rubber screw fixedly cone breaker device and cabinet respectively, to reach the effect of shock-absorbing, reduces and shakes and the sympathetic response noise.
Such scheme has reduced the generation of vibrations and sympathetic response noise really to a certain extent, has optimized operational environment, but meanwhile, because the rubber screw does not reach the fixed effect of metallic screw to complete machine after all to the fixed effect of complete machine; Moreover described cone breaker device use for a long time can cause the loosening of rubber screw even break away from, thereby some device in the complete machine is in the potential mechanical breakdown.
Summary of the invention
The technical problem to be solved in the present invention provides a kind of method and apparatus of realizing real-time control of motor rotation speed, with motor applications in shredder, when shredder started, vibrations that the present invention can produce revolution and sympathetic response noise control were within the receptible scope of working environment institute.
Theoretical discovery, for a shredder, its noise is expressed as follows with sound power level:
Lw=lg (W/W0), wherein W is an acoustical power, W0 is a reference sound power, equals 1PW.
Lw is a sound power level, and the B of unit represents B with dB usually, 1dB=0.1B.
Wherein, acoustical power is the gross energy that sound source was launched in the unit interval, generally converts with sound pressure level during measurement, and available sound level meter is measured.
When shredder rotated, the main noise source was a motor and the sound that cooperates of 2# tooth, and the rated power of motor, P=UI;
Ft=2000T1 (or 2)/d1 (or 2), T1 (or 2)=9549P/n1 (or 2);
Wherein, T1 (or 2) is the specified commentaries on classics weak point of pinion or gear wheel; P is a rated power; N1 (or 2) is the rotating speed of pinion or gear wheel.
As seen the rated power P of motor is directly proportional with T1 (or 2) * n1 (or 2), and certain when the shredded paper number, promptly external force (Ft) is certain, and certain for same motor (d1), then P is directly proportional with n1 (or 2).
To sum up can get, when ignoring other noise source, the total noise of centrifuge source is relevant with motor rotary speed, and rotating speed increases, and noise is big more, and rotating speed lowers, and noise reduces.
Therefore, by the rotating speed of change, and then change vibrations and the sympathetic response noise that is produced when complete machine is worked as main noise source motor.
For solving the problems of the technologies described above, complete technical scheme provided by the present invention specifically comprises step:
(1) sets in advance expectation revolution speed;
(2) cycle detection motor actual rotation speed, and detection feedback information to microprocessor compares;
(3) trigger the instruction of revolution rate controlled according to comparative result.
To require pairing decibel value be standard to the noise level that is produced when wherein, motor rotates with described expectation revolution speed can adapt to working environment.
Preferably, the invention provides preferred version and specifically comprise step:
(1) sets in advance expectation revolution speed;
(2) carry out synchronous detecting according to motor actual rotation speed, and feedback synchronous detecting information;
(3) compare motor actual rotation speed and expectation revolution speed;
(4) trigger the instruction of revolution rate controlled according to comparative result.
Preferably, described step (K4) specific implementation step is: if motor actual rotation speed then triggers and reduces the motor operations voltage instruction greater than expectation revolution speed; If motor actual rotation speed then triggers and improves the motor operations voltage instruction less than expectation revolution speed.
Further, described step (K4) also comprises the operating voltage according to revolution rate controlled instruction raising/reduction motor afterwards.
Accordingly, the present invention provides a kind of device of realizing real-time control of motor rotation speed equally, comprises microprocessor, synchronous detection unit and voltage control unit; Described microprocessor comprises revolution speed memory cell, comparing unit and control command trigger element; Described revolution speed cell stores sets in advance expectation revolution speed, described comparing unit is motor actual rotation speed and expectation revolution speed relatively, and described control command trigger element triggers the instruction of revolution rate controlled according to comparative result; Described synchronous detection unit cycle detection motor actual rotation speed and detection feedback information are to microprocessor; Described voltage control unit is according to the operating voltage of revolution rate controlled instruction raising/reduction motor.
Wherein, described synchronous detection unit is specially Hall sensor.
Described voltage control unit is made of controllable silicon and its auxiliary element.
By above complete technical scheme as can be seen, the technique effect that the present invention reached is mainly reflected in and can have solved motor from root and produce the excessive problem of noise because of rotation, and still can guarantee the good of original mechanical structure feature of complete machine and performance.
Principle of device provided by the present invention is simple and clear, and information interactive process is clear, and the system of being convenient to realizes.
Description of drawings
Fig. 1 is first embodiment provided by the present invention;
Fig. 2 is second embodiment provided by the present invention;
Fig. 3 is the 3rd embodiment provided by the present invention;
Fig. 4 is the 4th embodiment provided by the present invention;
Fig. 5 is the installation drawing of realization real-time control of motor rotation speed provided by the present invention.
Embodiment
Seeing also Fig. 1 is first embodiment provided by the present invention, and its technical scheme specifically comprises step:
(S1) set in advance expectation revolution speed;
(S2) cycle detection motor actual rotation speed, and detection feedback information to microprocessor compares;
(S3) trigger the instruction of revolution rate controlled according to comparative result.
To require pairing decibel value be standard to the noise level that is produced when wherein, motor rotates with described expectation revolution speed can adapt to working environment.
Seeing also Fig. 2 is second embodiment provided by the present invention, comprises step:
(K1) set in advance expectation revolution speed;
(K2) carry out synchronous detecting according to motor actual rotation speed, and feedback synchronous detecting information;
(K3) compare motor actual rotation speed and expectation revolution speed;
(K4) trigger the instruction of revolution rate controlled according to comparative result.
To require pairing decibel value be standard to the noise level that is produced when wherein, motor rotates with described expectation revolution speed can adapt to working environment.
See also Fig. 3, be the 3rd embodiment provided by the present invention, the preferred version that it provided specifically comprises the steps:
(M1) set in advance expectation revolution speed;
(M2) carry out synchronous detecting according to motor actual rotation speed, and feedback synchronous detecting information;
(M3) compare motor actual rotation speed and expectation revolution speed;
(M4) judge that whether motor actual rotation speed is greater than expectation revolution speed;
(M5) if then triggering reduces the motor operations voltage instruction, if not, then enters step (M6);
(M6) if motor actual rotation speed less than expectation revolution speed, then triggers and improves the motor operations voltage instruction.
It is emphasized that and trigger after the raising/reduction motor operations voltage instruction, will be back to step (M2), thereby realize purpose the real-time monitoring of motor rotary speed.
To require pairing decibel value be standard to the noise level that is produced when similarly, motor rotates with described expectation revolution speed can adapt to working environment.
See also Fig. 4, be the 4th embodiment provided by the present invention, the preferred version that it provided specifically comprises the steps:
(J1) set in advance expectation revolution speed;
(J2) carry out synchronous detecting according to motor actual rotation speed, and feedback synchronous detecting information;
(J3) compare motor actual rotation speed and expectation revolution speed;
(J4) judge that whether motor actual rotation speed is greater than expectation revolution speed;
(J5) if then trigger reduction motor operations voltage instruction, if not, then enter step (J6);
(J6) if motor actual rotation speed less than expectation revolution speed, then triggers and improves the motor operations voltage instruction;
(J7) according to the operating voltage of revolution rate controlled instruction raising/reduction motor.
The present invention provides a kind of device of realizing real-time control of motor rotation speed equally, sees also Fig. 5, is the schematic diagram of device of this device.
Described device comprises microprocessor 100, synchronous detection unit 200 and voltage control unit 300; Described microprocessor 100 comprises revolution speed memory cell 110, comparing unit 120 and control command trigger element 130; Described revolution speed memory cell 110 storages set in advance expectation revolution speed, described comparing unit 120 is motor actual rotation speed and expectation revolution speed relatively, and described control command trigger element 130 triggers the instruction of revolution rate controlled according to comparative result; Described synchronous detection unit 200 cycle detection motor actual rotation speed and detection feedback information are to microprocessor; Described voltage control unit 300 is according to the operating voltage of revolution rate controlled instruction raising/reduction motor.
Understand for convenient, above-mentioned preferred version is described in detail below with reference to example.Wherein synchronous detection unit 200 can be substituted by Hall sensor, and voltage control unit 300 can be made up of other auxiliary elements such as controllable silicons, reaches the purpose of governor motor voltage by the control silicon controlled angle of flow, and is applicable to alternating current motor; Voltage control unit 300 also can utilize a field effect transistor, and is in parallel with fly-wheel diode, adds a pulse signal at the control utmost point of field effect transistor, and this kind control mode is pulse width modulation mode (PWM).Thereby reach the purpose of governor motor operating voltage, and be applicable to d.c. motor.
Start the alternating current motor power supply, described synchronous detection unit can specifically be realized by Hall sensor, and the strong magnet of a N.S type is set in the rear end of motor, described Hall sensor is arranged on the other active position of strong magnet, when revolution, to drive N.S type strong magnet rotates, Hall sensor detects the power in N.S magnetic field, because Hall sensor is the device of a magnetic field switching current, then Hall sensor 3 pin are exported pulse current, the cycle of this pulse current is identical with motor rotary speed, can be set to revolution one circle, then pulse of Hall sensor output; The pulse signal of Hall sensor output is sent to microprocessor and handles; Microprocessor is according to the slewing rate of pulse signal analysis and judgement motor in the unit interval that receives, if set in advance expectation revolution speed in 4000+/-1000 rev/min, complete machine energy operate as normal, and reach the effect that reduces vibrations and sympathetic response noise, if having surpassed 5000 one minute inner motor actual rotation speed, microprocessor judges changes, and then described microprocessor triggering reduction motor operations voltage instruction, control voltage descends, and change also corresponding 4000+/-1000 that drop to of rotating speed; Otherwise do not change if microprocessor judges reaches 3000 one minute inner motor actual rotation speed, then described microprocessor triggers and improves the motor operations voltage instruction, and this instruction can change the silicon controlled angle of flow, and voltage increases to 4000+/-1000 to be changeed; In sum, complete machine is when work, and the slewing rate of motor can both remain within the scope of changeing 4000+/-1000 in real time.
If start the d.c. motor power supply, described synchronous detection unit can specifically be realized by Hall sensor, and the strong magnet of a N.S type is set in the rear end of motor, described Hall sensor is arranged on the other active position of strong magnet, when revolution, to drive N.S type strong magnet rotates, Hall sensor detects the power in N.S magnetic field, because Hall sensor is the device of a magnetic field switching current, then Hall sensor 3 pin are exported pulse current, the cycle of this pulse current is identical with motor rotary speed, can be set to revolution one circle, then pulse of Hall sensor output; The pulse signal of Hall sensor output is sent to microprocessor and handles; Microprocessor is according to the slewing rate of pulse signal analysis and judgement motor in the unit interval that receives.This commands for controlling microprocessor output impulse wave, and according to the rotating speed that detects load, at the width that constantly changes impulse wave, pulse duration is long more, output voltage is high more; Pulse duration is short more, and output voltage is low more.If set in advance expectation revolution speed in 4000+/-1000 rev/min, complete machine energy operate as normal, and reach the effect that reduces vibrations and sympathetic response noise, if having surpassed 5000 one minute inner motor actual rotation speed, microprocessor judges changes, and then described microprocessor triggers reduction motor operations voltage instruction, control voltage descends, and change also corresponding 4000+/-1000 that drop to of rotating speed; Otherwise do not change if microprocessor judges reaches 3000 one minute inner motor actual rotation speed, then described microprocessor triggers and improves the motor operations voltage instruction, and voltage increases to 4000+/-1000 to be changeed; In sum, complete machine is when work, and the slewing rate of motor can both remain within the scope of changeing 4000+/-1000 in real time.
More than a kind of method and apparatus of real-time control of motor rotation speed of realizing provided by the present invention is described in detail, used specific case herein principle of the present invention and execution mode are set forth, the explanation of above embodiment just is used for helping to understand method of the present invention and core concept thereof; Simultaneously, for one of ordinary skill in the art, according to thought of the present invention, the part that all can change in specific embodiments and applications, in sum, this description should not be construed as limitation of the present invention.
Claims (10)
1, a kind of method that realizes real-time control of motor rotation speed is characterized in that, comprises step:
(1) sets in advance expectation revolution speed;
(2) cycle detection motor actual rotation speed, and detection feedback information to microprocessor compares;
(3) trigger the instruction of revolution rate controlled according to comparative result.
2, the method for realization real-time control of motor rotation speed according to claim 1 is characterized in that, to require pairing decibel value be standard to the noise level that motor is produced when rotating with described expectation revolution speed can adapt to working environment.
3, the method for realization real-time control of motor rotation speed according to claim 1 is characterized in that, described step (2) specifically comprises step:
(31) carry out synchronous detecting according to motor actual rotation speed, and feedback synchronous detecting information;
(32) compare motor actual rotation speed and expectation revolution speed.
According to the method for claim 1 or 3 described realization real-time control of motor rotation speed, it is characterized in that 4, described step (3) is specially: if motor actual rotation speed equals to expect revolution speed, then motor operations voltage remains unchanged; If motor actual rotation speed then triggers and reduces the motor operations voltage instruction greater than expectation revolution speed; If motor actual rotation speed then triggers and improves the motor operations voltage instruction less than expectation revolution speed.
5, the method for realization real-time control of motor rotation speed according to claim 4 is characterized in that, the two-way controllable angle of flow of control is passed through in the instruction of revolution rate controlled in the described step (3), and then the governor motor operating voltage.
6, the method for realization real-time control of motor rotation speed according to claim 1 is characterized in that, described step (3) is specially according to pulse width modulation mode control output pulse wave band width, and then realizes the governor motor operating voltage.
7, the method for realization real-time control of motor rotation speed according to claim 1 is characterized in that, described step (3) further comprises afterwards: according to the operating voltage of revolution rate controlled instruction raising/reduction motor.
8, a kind of device of realizing real-time control of motor rotation speed is characterized in that, comprises microprocessor, synchronous detection unit and voltage control unit; Described microprocessor comprises revolution speed memory cell, comparing unit and control command trigger element; Described revolution speed cell stores sets in advance expectation revolution speed, described comparing unit is motor actual rotation speed and expectation revolution speed relatively, and described control command trigger element triggers the instruction of revolution rate controlled according to comparative result; Described synchronous detection unit cycle detection motor actual rotation speed and detection feedback information are to microprocessor; Described voltage control unit is according to the operating voltage of revolution rate controlled instruction raising/reduction motor.
9, the device of real-time control of motor rotation speed according to claim 8 is characterized in that, synchronous detection unit is specially Hall sensor.
10, the device of real-time control of motor rotation speed according to claim 8 is characterized in that, voltage control unit is made of controllable silicon and its auxiliary element.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2006100625982A CN1925315A (en) | 2006-09-13 | 2006-09-13 | Method and device for realizing real-time control of motor rotation speed |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2006100625982A CN1925315A (en) | 2006-09-13 | 2006-09-13 | Method and device for realizing real-time control of motor rotation speed |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1925315A true CN1925315A (en) | 2007-03-07 |
Family
ID=37817826
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2006100625982A Pending CN1925315A (en) | 2006-09-13 | 2006-09-13 | Method and device for realizing real-time control of motor rotation speed |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1925315A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103345803A (en) * | 2013-07-29 | 2013-10-09 | 广州智萃电子科技有限公司 | Automatic teller machine channel load self-checking device and method |
| CN106637804A (en) * | 2015-10-30 | 2017-05-10 | 青岛海尔洗衣机有限公司 | Driving method of stirring motor in the flocculation treatment process and washing machine |
| CN107096618A (en) * | 2017-06-30 | 2017-08-29 | 合肥久能图文科技有限公司 | A kind of shredder scraps of paper crush Control management system |
| CN109625261A (en) * | 2017-10-06 | 2019-04-16 | 松下电器（美国）知识产权公司 | Unmanned vehicle |
-
2006
- 2006-09-13 CN CNA2006100625982A patent/CN1925315A/en active Pending
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103345803A (en) * | 2013-07-29 | 2013-10-09 | 广州智萃电子科技有限公司 | Automatic teller machine channel load self-checking device and method |
| CN103345803B (en) * | 2013-07-29 | 2016-02-17 | 广州御融通电子设备开发有限公司 | A kind of ATM (Automatic Teller Machine) channel load self-checking unit and method |
| CN106637804A (en) * | 2015-10-30 | 2017-05-10 | 青岛海尔洗衣机有限公司 | Driving method of stirring motor in the flocculation treatment process and washing machine |
| CN107096618A (en) * | 2017-06-30 | 2017-08-29 | 合肥久能图文科技有限公司 | A kind of shredder scraps of paper crush Control management system |
| CN107096618B (en) * | 2017-06-30 | 2019-04-02 | 新昌县镜岭镇梅芹水果种植园 | A kind of shredder scraps of paper crushing Control management system |
| CN109625261A (en) * | 2017-10-06 | 2019-04-16 | 松下电器（美国）知识产权公司 | Unmanned vehicle |
| CN109625261B (en) * | 2017-10-06 | 2023-09-22 | 松下电器（美国）知识产权公司 | Unmanned aerial vehicle |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN202334412U (en) | Brushless DC motor control system | |
| CN102291065A (en) | Brushless direct current motor control device based on DSP (Digital Signal Processor) | |
| CN1242309C (en) | Motor control device and method for measuring a mechanical characteristic | |
| CN1719717A (en) | Instantaneous power cut restaring method and apparatus for frequency change speed regulating system | |
| CN1925315A (en) | Method and device for realizing real-time control of motor rotation speed | |
| CN2781347Y (en) | Spring fatigue testing machine | |
| CN1604088A (en) | Fault collection and detection apparatus and method | |
| EP1760184A3 (en) | Operating apparatus and method of a washing machine | |
| CN106059194A (en) | Energy collection device for effectively employing simple pendulum energy and application product thereof | |
| CN1551939A (en) | Washing machine | |
| CN2830362Y (en) | Tower crane turning gear controlled by converter | |
| CN1458555A (en) | DC motor servo driving system based on network | |
| CN2768312Y (en) | Program-controlled transducer | |
| CN106130400A (en) | A kind of scroll actuation circular piezoelectric vibrator energy accumulator | |
| CN103145007A (en) | Numerical-control fiber winding machine control system based on variable-frequency speed regulator | |
| CN101814791A (en) | Starting-generating integration structure for small-sized internal combustion engines | |
| CN101075799A (en) | Digital intelligent controlling module for DC electric motor | |
| CN106672818A (en) | Gate seat type crane | |
| CN202661892U (en) | Synchronous speed controller | |
| CN203537287U (en) | Brushless direct current motor controller based on DSP | |
| CN1285168C (en) | Controller for inverter device | |
| CN201546901U (en) | Wind-driven generator with windless starting for low speed power generation | |
| CN201774381U (en) | Reduction box of motor | |
| CN1725191A (en) | Dynamic frequency converter | |
| CN103904966A (en) | Electric tool and motor control method of electric tool |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Open date: 20070307 |