CN106685279A - Method and device for detecting Hall signals of motor - Google Patents
Method and device for detecting Hall signals of motor Download PDFInfo
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- CN106685279A CN106685279A CN201611270864.0A CN201611270864A CN106685279A CN 106685279 A CN106685279 A CN 106685279A CN 201611270864 A CN201611270864 A CN 201611270864A CN 106685279 A CN106685279 A CN 106685279A
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02P—CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
- H02P29/00—Arrangements for regulating or controlling electric motors, appropriate for both AC and DC motors
- H02P29/02—Providing protection against overload without automatic interruption of supply
- H02P29/032—Preventing damage to the motor, e.g. setting individual current limits for different drive conditions
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- Control Of Motors That Do Not Use Commutators (AREA)
Abstract
The invention provides a method and device for detecting Hall signals of a motor, and relates to the field of financial electronic equipment. The method comprises the following steps: when detecting that signals trigger Hall interruption, judging whether level of the signals in the preset time quantum maintains unchanged or not, wherein initial time corresponding to the preset time quantum is the time when the Hall interruption is triggered; and if the level of the signals in the preset time quantum maintains unchanged, determining that the signals are Hall signals. Therefore, the Hall signals output by the motor can be accurately detected, and then the motor can be accurately controlled.
Description
Technical field
The invention belongs to Electronic Finance apparatus field, more particularly to a kind of method and dress of hall signal of detection motor
Put.
Background technology
Be generally provided with motor in Electronic Finance equipment (such as automatic teller machine), for driving Electronic Finance equipment in
The motion of corresponding component is performing corresponding business.Motor often rotates predetermined angle and can export a hall signal, by statistics
The number of the hall signal of motor output, can calculate the rotating speed of motor and operation step-length etc., and then motor is carried out
Corresponding control.Motor in Electronic Finance equipment is controlled by MCU (Microcontroller Unit, micro-control unit)
System, the hall signal of motor output is gathered by the Hall interrupt of MCU.In prior art, the Hall interrupt of MCU often collects one group
Rising edge and trailing edge, then it is assumed that motor exports a hall signal, are counted by counting the number of rising edge and trailing edge
The number of the hall signal of motor output.
However, being affected by motor self performance and working environment, often it is mingled with the hall signal of motor output
Interference signal (such as narrow pulse signal), therefore, the hall signal obtained using the method statistic of detection rising edge and trailing edge
Number can not accurately reflect motor reality output hall signal number so that it is calculated according to the statistical result
There is mistake in motor speed or operation step-length etc., so as to cause the follow-up control to motor to malfunction.
In summary, the method for the hall signal of existing detection motor has that accuracy in detection is relatively low.
The content of the invention
It is an object of the invention to provide a kind of method and device of the hall signal of detection motor, it is intended to solve existing
The relatively low problem of accuracy in detection existing for the method for the hall signal of detection motor.
The present invention is achieved in that a kind of method of the hall signal of detection motor, and the motor often rotates preset angle
Degree one hall signal of output, the hall signal triggers Hall interrupt, and methods described includes：
If having detected signal triggering Hall interrupt, whether the level for judging the signal in preset time period maintains not
Become；Wherein, the corresponding initial time of the preset time period is the moment that the Hall interrupt is triggered；
If the level of the signal remains unchanged in preset time period, it is determined that the signal is hall signal.
On the basis of above-mentioned technical proposal, methods described also includes：
If the level of the signal does not remain unchanged in preset time period, it is determined that the signal is burr interference letter
Number.
On the basis of above-mentioned technical proposal, each hall signal includes a rising edge and a trailing edge, described
The rising edge and trailing edge of hall signal can trigger Hall interrupt；If described detected signal triggering Hall interrupt, sentence
In disconnected preset time period the level of the signal whether remain unchanged including：
If having detected signal triggering Hall interrupt, determine whether that rising edge is triggered；
If rising edge is triggered, then whether the level for judging the signal in preset time period is continuously high level；
If not rising edge is triggered, then whether the level for judging the signal in preset time period is continuously low level.
On the basis of above-mentioned technical proposal, if the level of the signal remains unchanged in the preset time period, really
The fixed signal includes for hall signal：
If rising edge is triggered, the level of the signal is continuously high level in preset time period, and is not rising edge
During triggering, the level of the signal is continuously low level in preset time period, it is determined that the signal is hall signal.
On the basis of above-mentioned technical proposal, if the level of the signal does not remain unchanged in the preset time period,
Then determine that the signal includes for burr interference signal：
If rising edge is triggered, the level of the signal is not to be continuously high level in preset time period, or is not
When rising edge is triggered, the level of the signal is not to be continuously low level in preset time period, it is determined that the signal is burr
Interference signal.
Present invention also offers it is a kind of detection motor hall signal device, the motor often rotate predetermined angle output
One hall signal, the hall signal triggers Hall interrupt, and described device includes：
Judge module, if for having detected signal triggering Hall interrupt, judging the signal in preset time period
Whether level remains unchanged；Wherein, the corresponding initial time of the preset time period is the moment that the Hall interrupt is triggered；
Determining module, if the level for the signal in preset time period remains unchanged, it is determined that the signal is for suddenly
That signal.
On the basis of above-mentioned technical proposal, the determining module is additionally operable to：
If the level of the signal does not remain unchanged in preset time period, it is determined that the signal is burr interference letter
Number.
On the basis of above-mentioned technical proposal, each hall signal includes a rising edge and a trailing edge, described
The rising edge and trailing edge of hall signal can trigger Hall interrupt；The judge module includes：
Rising edge judging unit, if for having detected signal triggering Hall interrupt, determining whether that rising edge is triggered；
High level judging unit, if for rising edge triggering, then judging the level of the signal in preset time period is
It is no to be continuously high level；
Low level judging unit, if not for rising edge triggering, then judging the level of the signal in preset time period
Whether low level is continuously.
On the basis of above-mentioned technical proposal, the determining module specifically for：
If rising edge is triggered, the level of the signal is continuously high level in preset time period, and is not rising edge
During triggering, the level of the signal is continuously low level in preset time period, it is determined that the signal is hall signal.
On the basis of above-mentioned technical proposal, the determining module specifically for：
If rising edge sets out, the level of the signal is not to be continuously high level in preset time period, or is not
When rising edge is triggered, the level of the signal is not to be continuously low level in preset time period, it is determined that the signal is burr
Interference signal.
If the present invention has detected signal triggering Hall interrupt, whether the level of the signal in preset time period is judged
Remain unchanged；Wherein, the corresponding initial time of the preset time period is the moment that the Hall interrupt is triggered；If when default
Between in section the level of the signal remain unchanged, it is determined that the signal is hall signal, such that it is able to defeated to motor exactly
The hall signal for going out is detected, and then can realize the accurate control to motor.
Description of the drawings
In order to be illustrated more clearly that embodiment of the present invention technical scheme, below embodiment will be described needed for be used
Accompanying drawing is briefly described, it should be apparent that, drawings in the following description are some embodiments of the present invention, general for this area
For logical technical staff, on the premise of not paying creative work, can be with according to these other accompanying drawings of accompanying drawings acquisition.
Fig. 1 is a kind of schematic flow diagram of the method for the hall signal of detection motor provided in an embodiment of the present invention；
Fig. 2 is a kind of schematic flow diagram of the method for the hall signal of detection motor that another embodiment of the present invention is provided；
Fig. 3 is a kind of schematic block diagram of the device of the hall signal of detection motor provided in an embodiment of the present invention.
Specific embodiment
In order that the objects, technical solutions and advantages of the present invention become more apparent, it is right below in conjunction with drawings and Examples
The present invention is further elaborated.It should be appreciated that specific embodiment described herein is only to explain the present invention, and
It is not used in the restriction present invention.
Fig. 1 is a kind of schematic flow diagram of the method for the hall signal of detection motor provided in an embodiment of the present invention.At this
In inventive embodiments, motor refers specifically to be used to drive phase in Electronic Finance equipment in Electronic Finance equipment (such as automatic teller machine)
Answer the motion of part to perform the motor of corresponding business.Motor can be direct current generator, alternatively alternating current generator, with specific reference to
Practical situation is configured, and is not limited herein.
In embodiments of the present invention, motor often rotates predetermined angle and exports a hall signal, and hall signal can be triggered suddenly
You interrupt.The number of times that Hall interrupt is triggered can reflect the number of the hall signal that motor is exported.
Shown in Figure 1, a kind of method of the hall signal of detection motor that the present embodiment is provided can include following step
Suddenly：
Step S101：If having detected signal triggering Hall interrupt, the level of the signal in preset time period is judged
Whether remain unchanged.
In embodiments of the present invention, after Hall interrupt is opened, whether real-time detection has signal to trigger Hall interrupt.If inspection
Signal triggering Hall interrupt is measured, has then obtained the signal of triggering Hall interrupt, and judged the electricity of signal preset time period Nei
It is flat whether to remain unchanged.
Wherein, the moment that the corresponding initial time of preset time period is triggered for Hall interrupt.Preset time period is corresponding
Duration can be configured according to practical situation, not be limited herein.
Whether the level of signal remains unchanged and refers specifically in preset time period, and the moment being triggered from Hall interrupt starts it
In preset time period afterwards, whether the level for triggering the signal of Hall interrupt remains unchanged always.
In embodiments of the present invention, each hall signal includes a rising edge and a trailing edge, hall signal
Rising edge and trailing edge can trigger Hall interrupt.
Further, step S102 specifically may comprise steps of：
If having detected signal triggering Hall interrupt, determine whether that rising edge is triggered；
If rising edge is triggered, then whether the level for judging the signal in preset time period is continuously high level；
If not rising edge is triggered, then whether the level for judging the signal in preset time period is continuously low level.
In embodiments of the present invention, if having detected signal triggering Hall interrupt, judge whether it is the signal correspondence
Rising edge triggering Hall interrupt.If the rising edge triggering Hall interrupt of the signal, then judge the letter in preset time period
Number level whether be continuously high level.If being continuously high level, the rising edge for illustrating the signal is correct Hall letter
Number rising edge；If not high level is continuously, then the rising edge of the rising edge for burr interference signal of the signal is illustrated.
In embodiments of the present invention, Hall interrupt is triggered if not the rising edge of the signal, then explanation is the signal
Trailing edge triggers Hall interrupt, and now, whether the level for judging signal preset time period Nei is continuously low level.If continued
For low level, then the trailing edge for illustrating the signal is the trailing edge of correct hall signal；If not low level is continuously, then
Illustrate the trailing edge of the trailing edge for burr interference signal of the signal.
Step S102：If the level of the signal remains unchanged in preset time period, it is determined that the signal is Hall letter
Number.
In embodiments of the present invention, if the level for detecting the signal of preset time period internal trigger Hall interrupt is maintained not
Become, it is determined that the signal is hall signal, and carries out respective handling to the hall signal.For example, however, it is determined that triggering Hall interrupt
Signal be hall signal, then add 1 according to the hall signal control counter, with realize to motor output hall signal standard
Really count.
Further, step S102 may comprise steps of：
If rising edge is triggered, the level of the signal is continuously high level in preset time period, and is not rising edge
During triggering, the level of the signal is continuously low level in preset time period, it is determined that the signal is hall signal.
In embodiments of the present invention, if when the signal for triggering Hall interrupt is triggered for rising edge, be somebody's turn to do in Preset Time
The level of signal is continuously high level, then the rising edge for illustrating the signal is the rising edge of correct hall signal.If touched
The signal for sending out Hall interrupt is not rising edge triggering, and when as trailing edge is triggered, the level of the signal is held in preset time period
Continue for low level, then the trailing edge for illustrating the signal is the trailing edge of correct hall signal.If the rising edge of the signal is
The rising edge of correct hall signal, and the trailing edge of the signal is the trailing edge of correct hall signal, it is determined that the signal
For correct hall signal.And the correct hall signal is processed accordingly, for example, according to the hall signal control meter
Number device adds 1, to realize the accurate counting of the hall signal to motor output, so as to realize the rotating speed to motor or operation stepping etc.
Accurate calculating, and then realize accurate control to motor.
Above as can be seen that the present embodiment provide a kind of detection motor hall signal method, if having detected letter
Number triggering Hall interrupt, then whether the level for judging the signal in preset time period remain unchanged；Wherein, the Preset Time
The corresponding initial time of section is the moment that the Hall interrupt is triggered；If the level of the signal is maintained not in preset time period
Become, it is determined that the signal be hall signal, such that it is able to exactly to motor output hall signal detect, Jin Erke
To realize the accurate control to motor.
Fig. 2 is a kind of schematic flow diagram of the method for the hall signal of detection motor that another embodiment of the present invention is provided.
Shown in Figure 2, relative to a upper embodiment, the method for the hall signal of the detection motor that the present embodiment is provided can also include
Following steps：
Step S203：If the level of the signal does not remain unchanged in preset time period, it is determined that the signal is hair
Thorn interference signal.
In the present embodiment, if the level of the signal of preset time period internal trigger Hall interrupt does not remain unchanged,
It is determined that the signal of triggering Hall interrupt is burr interference signal.The burr interference signal can be filtered, to avoid affecting
The accuracy of motor control.
Further, step S203 may comprise steps of：
If rising edge is triggered, the level of the signal is not to be continuously high level in preset time period, or is not
When rising edge is triggered, the level of the signal is not to be continuously low level in preset time period, it is determined that the signal is burr
Interference signal.
In the present embodiment, if when the signal for triggering Hall interrupt trigger for rising edge, the interior signal of Preset Time
Level be not to be continuously high level, then illustrate the rising edge of the signal for burr interference signal rising edge, the signal is hair
Thorn interference signal.Or, if the signal in triggering Hall interrupt is not rising edge triggering, when as trailing edge is triggered, preset
The level of signal is not to be continuously low level in time period, then illustrate the rising of the rising edge for burr interference signal of the signal
Edge, the signal is burr interference signal.
It should be noted that the specific implementation of step S201 in the present embodiment~step S202 is corresponding with Fig. 1
The implementation of step S101 in embodiment~step S102 is identical, in specifically referring to the corresponding embodiments of Fig. 1
The associated description of step S101~step S102, here is omitted.
Above as can be seen that a kind of method of the hall signal of detection motor of the present embodiment offer equally can be examined accurately
Measure whether trigger is hall signal, and then the accurate control to motor can be realized.
Fig. 3 is a kind of schematic block diagram of the device of the hall signal of detection motor provided in an embodiment of the present invention.In order to
It is easy to illustrate to illustrate only part related to the present embodiment.The device of the hall signal of the detection motor of the present embodiment includes
Each unit be used to perform each step in the corresponding embodiments of Fig. 1, in specifically referring to the corresponding embodiments of Fig. 1 and Fig. 1
Associated description, do not repeat herein.
It is shown in Figure 3, a kind of device of the hall signal of detection motor that the present embodiment is provided, including：Judge module
301 and determining module 302.Wherein, judge module 301 includes rising edge judging unit 310, high level judging unit 311 and low
Electrical level judging unit 312.
If judge module 301 is used to detect signal triggering Hall interrupt, the signal in preset time period is judged
Level whether remain unchanged；Wherein, the corresponding initial time of the preset time period be the Hall interrupt be triggered when
Carve.
Further, if rising edge judging unit 310 is used to detect signal triggering Hall interrupt, determine whether
Rising edge is triggered.
If high level judging unit 311 then judges the level of the signal in preset time period for rising edge triggering
Whether high level is continuously.
If not low level judging unit 312 then judges the electricity of the signal in preset time period for rising edge triggering
It is flat whether to be continuously low level.
If determining module 302 is used for the level of the signal in preset time period and remains unchanged, it is determined that the signal is
Hall signal.
Further, if determining module 302 is triggered specifically for rising edge, the electricity of the signal in preset time period
It is flat to be continuously high level, and when not triggering for rising edge, the level of the signal is continuously low level in preset time period, then really
The fixed signal is hall signal.
As another embodiment of the present invention, if determining module 302 is additionally operable to the level of the signal in preset time period not
It is to remain unchanged, it is determined that the signal is burr interference signal.
Further, if determining module 302 is set out specifically for rising edge, the electricity of the signal in preset time period
Flat is not to be continuously high level, or when not triggering for rising edge, the level of the signal is not continuously in preset time period
Low level, it is determined that the signal is burr interference signal.
Above as can be seen that the present embodiment provide a kind of detection motor hall signal device, if having detected letter
Number triggering Hall interrupt, then whether the level for judging the signal in preset time period remain unchanged；Wherein, the Preset Time
The corresponding initial time of section is the moment that the Hall interrupt is triggered；If the level of the signal is maintained not in preset time period
Become, it is determined that the signal be hall signal, such that it is able to exactly to motor output hall signal detect, Jin Erke
To realize the accurate control to motor.
One of ordinary skill in the art will appreciate that：The step of realizing said method embodiment or part steps can pass through
Completing, aforesaid program can be stored in computer read/write memory medium the related hardware of programmed instruction, and the program exists
During execution, the step of including said method embodiment is performed, and aforesaid storage medium includes：ROM, RAM, magnetic disc or CD
Etc. it is various can be with the medium of store program codes.
Presently preferred embodiments of the present invention is the foregoing is only, not to limit the present invention, all essences in the present invention
Any modification, equivalent and improvement made within god and principle etc., should be included within the scope of the present invention.
Claims (10)
1. it is a kind of detection motor hall signal method, the motor often rotate predetermined angle export a hall signal, institute
State hall signal triggering Hall interrupt, it is characterised in that methods described includes：
If having detected signal triggering Hall interrupt, whether the level for judging the signal in preset time period remains unchanged；
Wherein, the corresponding initial time of the preset time period is the moment that the Hall interrupt is triggered；
If the level of the signal remains unchanged in preset time period, it is determined that the signal is hall signal.
2. the method for detecting the hall signal of motor as claimed in claim 1, it is characterised in that methods described also includes：
If the level of the signal does not remain unchanged in preset time period, it is determined that the signal is burr interference signal.
3. the method for detecting the hall signal of motor as claimed in claim 2, it is characterised in that each hall signal includes
One rising edge and a trailing edge, the rising edge and trailing edge of the hall signal can trigger Hall interrupt；If the inspection
Measured signal triggering Hall interrupt, then judge the signal in preset time period level whether remain unchanged including：
If having detected signal triggering Hall interrupt, determine whether that rising edge is triggered；
If rising edge is triggered, then whether the level for judging the signal in preset time period is continuously high level；
If not rising edge is triggered, then whether the level for judging the signal in preset time period is continuously low level.
4. the method for detecting the hall signal of motor as claimed in claim 3, it is characterised in that if in the preset time period
The level of the signal remains unchanged, it is determined that the signal includes for hall signal：
If rising edge is triggered, the level of the signal is continuously high level in preset time period, and is not rising edge triggering
When, the level of the signal is continuously low level in preset time period, it is determined that the signal is hall signal.
5. the method for detecting the hall signal of motor as claimed in claim 3, it is characterised in that if in the preset time period
The level of the signal does not remain unchanged, it is determined that the signal includes for burr interference signal：
If rising edge is triggered, the level of the signal is not to be continuously high level in preset time period, or is not rising
Along during triggering, the level of the signal is not to be continuously low level in preset time period, it is determined that the signal is burr interference
Signal.
6. it is a kind of detection motor hall signal device, the motor often rotate predetermined angle export a hall signal, institute
State hall signal triggering Hall interrupt, it is characterised in that described device includes：
Judge module, if for having detected signal triggering Hall interrupt, judging the level of the signal in preset time period
Whether remain unchanged；Wherein, the corresponding initial time of the preset time period is the moment that the Hall interrupt is triggered；
Determining module, if the level for the signal in preset time period remains unchanged, it is determined that the signal is Hall letter
Number.
7. the device of the hall signal of motor is detected as claimed in claim 6, it is characterised in that the determining module is also used
In：
If the level of the signal does not remain unchanged in preset time period, it is determined that the signal is burr interference signal.
8. the device of the hall signal of motor is detected as claimed in claim 7, it is characterised in that each hall signal includes
One rising edge and a trailing edge, the rising edge and trailing edge of the hall signal can trigger Hall interrupt；The judgement
Module includes：
Rising edge judging unit, if for having detected signal triggering Hall interrupt, determining whether that rising edge is triggered；
High level judging unit, if for rising edge triggering, then whether the level for judging the signal in preset time period is held
Continue for high level；
Low level judging unit, if not for rising edge triggering, then whether judging the level of the signal in preset time period
It is continuously low level.
9. the device of the hall signal of motor is detected as claimed in claim 8, it is characterised in that the determining module is specifically used
In：
If rising edge is triggered, the level of the signal is continuously high level in preset time period, and is not rising edge triggering
When, the level of the signal is continuously low level in preset time period, it is determined that the signal is hall signal.
10. the device of the hall signal of motor is detected as claimed in claim 8, it is characterised in that the determining module is concrete
For：
If rising edge is triggered, the level of the signal is not to be continuously high level in preset time period, or is not rising
Along during triggering, the level of the signal is not to be continuously low level in preset time period, it is determined that the signal is burr interference
Signal.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201611270864.0A CN106685279A (en) | 2016-12-30 | 2016-12-30 | Method and device for detecting Hall signals of motor |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611270864.0A CN106685279A (en) | 2016-12-30 | 2016-12-30 | Method and device for detecting Hall signals of motor |
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Family
ID=58850152
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| CN201611270864.0A Pending CN106685279A (en) | 2016-12-30 | 2016-12-30 | Method and device for detecting Hall signals of motor |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108365642A (en) * | 2017-12-26 | 2018-08-03 | 中国航发四川燃气涡轮研究院 | A kind of telemetry system for revolving part test is for electric installation and control method |
| CN114584114A (en) * | 2022-04-29 | 2022-06-03 | 卧安科技(深圳)有限公司 | Hall signal filtering method for uniform motion detection and curtain opening and closing device |
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| CN105790652A (en) * | 2016-04-28 | 2016-07-20 | 广东威灵电机制造有限公司 | Hall signal identification method used for motor control system and apparatus thereof |
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Application publication date: 20170517 |