CN108195021A - A kind of motor power frequency interpretation method, device and air-conditioning - Google Patents
A kind of motor power frequency interpretation method, device and air-conditioning Download PDFInfo
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- CN108195021A CN108195021A CN201711470552.9A CN201711470552A CN108195021A CN 108195021 A CN108195021 A CN 108195021A CN 201711470552 A CN201711470552 A CN 201711470552A CN 108195021 A CN108195021 A CN 108195021A
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Abstract
The present invention provides a kind of motor power frequency interpretation method, device and air-conditioning, wherein, motor power frequency interpretation method includes：The interval time of the zero cross signal of power supply is detected, the supply frequency of motor is judged according to interval time.In the present invention, the interval time according to the zero cross signal of power supply can accurately judge the supply frequency of motor, improve service efficiency.
Description
Technical field
The present invention relates to technical field of electric appliances, more particularly to a kind of motor power frequency interpretation method, device and air-conditioning.
Background technology
With the development of the society, in general, air conditioner is common daily electrical home appliance product in family, operation principle is to utilize
Aerial cooler, heater or air purifier are to make room feel nice and cool, warm or air purification is so as to make internal environment preferably
Equipment.Air-conditioning is broadly divided into wall-hanging air conditioner, cabinet-type and embedded etc., and the air-conditioning of cabinet-type is more liked by consumer
Love.
With the different demands in various regions market, major air-conditioning producer often develops simultaneously for the type of same refrigerating capacity
Motor power frequency is 50HZ's and 60HZ, and corresponding rotating speed can also have any different.It needs accurately to judge electricity before air-conditioning is used
The supply frequency of machine.Method on the market can not accurately judge the supply frequency of motor at present.
Invention content
In view of this, the present invention is directed to propose a kind of motor power frequency interpretation method, can accurately judge motor
Supply frequency improves service efficiency.
In order to achieve the above objectives, the technical proposal of the invention is realized in this way：
A kind of motor power frequency interpretation method, the motor power frequency interpretation method include：
Detect the interval time of the zero cross signal of power supply；
The supply frequency of the motor is judged according to the interval time.
Further, described the step of judging supply frequency according to the interval time, includes：
The null cycle excessively of the zero cross signal is judged according to the interval time；
According to supply frequency described in the zero passage computation of Period.
Further, it is described to judge including the step of spending null cycle for the zero cross signal according to the interval time：
The gap periods of the zero cross signal are judged according to interval time；
The null cycle excessively is calculated according to the gap periods.
Further, described the step of judging the gap periods of the zero cross signal according to interval time, includes：
When the interval time is in the first preset time section, judge the null cycle excessively for the first gap periods；
When the interval time is in the second preset time section, the null cycle excessively is judged for the second gap periods,
Wherein, the lower limiting value in the second preset time section be greater than or equal to the first preset time section upper limit value, described second
Period is more than the period 1.
Further, described the step of calculating the null cycle excessively according to the gap periods, includes：According to the following formula
Calculated null cycle：
Wherein, be T it was null cycle, n is positive integer, and t is gap periods.
Further, it is described according to including the step of supply frequency described in the zero passage computation of Period：According to the following formula
Calculate the supply frequency：
Wherein, f is supply frequency, and T was null cycle.
Further, the motor power frequency interpretation method further includes：
Step S9 performs step S1 and step S2, exports the supply frequency again；
Step S10 judges whether two supply frequencies are equal；
Step S11 is counted according to comparison result, generates count value；
Step S12 when the count value reaches pre-set count values, exports the supply frequency.
Further, the step S11 includes：
Step S13, when two supply frequencies are worth equal, the count value adds up, and recycles the step S9- institutes
State step S11；
The step S11 is further included：
Step S14, when two supply frequencies values are unequal, the count value is reset, and recycle the step S1,
The step S2, step S11 described in the step S9-.
Relative to the prior art, motor power frequency interpretation method of the present invention has the advantage that：
Motor power frequency interpretation method of the present invention includes the interval time of the zero cross signal of detection power supply, foundation
Interval time judges the supply frequency of motor.In the present invention, the interval time according to the zero cross signal of power supply can be accurate
Judge the supply frequency of motor, improve service efficiency.
Another object of the present invention is to propose a kind of motor power frequency judgment means, motor can be accurately judged
Supply frequency improves service efficiency.
In order to achieve the above objectives, the technical proposal of the invention is realized in this way：
A kind of motor power frequency judgment means, including：Time detection module and control module,
Time detection module, for detecting the interval time of the zero cross signal of power supply；
Control module, for judging the supply frequency of the motor according to the interval time.
The motor power frequency judgment means are had with above-mentioned motor power frequency interpretation method relative to the prior art
Some advantages are identical, and details are not described herein.
Another object of the present invention is to propose a kind of electric appliance, the supply frequency of motor can be accurately judged, raising makes
Use efficiency.
A kind of air-conditioning, including：
Memory；
Processor；And
Motor power frequency judgment means, the motor power frequency judgment means be installed in the memory and including
The software function module that one or more is performed by the processor, the motor power frequency judgment means include：
Time detection module, for detecting the interval time of the zero cross signal of power supply；
Control module, for judging the supply frequency of the motor according to the interval time.
The air-conditioning is identical relative to advantage possessed by the prior art with above-mentioned motor power frequency interpretation method, herein
It repeats no more.
Description of the drawings
The attached drawing for forming the part of the present invention is used to provide further understanding of the present invention, schematic reality of the invention
Example and its explanation are applied for explaining the present invention, is not constituted improper limitations of the present invention.In the accompanying drawings：
Fig. 1 is the flow chart of the motor power frequency interpretation method described in the embodiment of the present invention one；
Fig. 2 is the flow of the sub-step of the step S2 of the motor power frequency interpretation method described in the embodiment of the present invention one
Figure；
Fig. 3 is the flow of the sub-step of the step S3 of the motor power frequency interpretation method described in the embodiment of the present invention one
Figure；
Fig. 4 is the flow chart of the sub-step of the motor power frequency interpretation method described in the embodiment of the present invention one；
Fig. 5 is the flow chart of the sub-step of the motor power frequency interpretation method described in the embodiment of the present invention one；
Fig. 6 is the flow chart of the sub-step of the motor power frequency interpretation method described in the embodiment of the present invention one；
Fig. 7 is the composition frame chart of the motor power frequency judgment means described in the embodiment of the present invention two；
Fig. 8 is the composition frame chart of the control module of the motor power frequency judgment means described in the embodiment of the present invention two；
Fig. 9 is the period judgment module of the control module of the motor power frequency judgment means described in the embodiment of the present invention two
Composition frame chart；
Figure 10 is the composition frame chart of the submodule of the motor power frequency judgment means described in the embodiment of the present invention two；
Figure 11 is the composition frame chart of the submodule of the motor power frequency judgment means described in the embodiment of the present invention two.
Reference sign：1- motor power frequency judgment means；2- time detection modules；3- control modules；The 4- periods
Judgment module；5- power supply judgment modules；6- gap periods judgment modules；7- zero passage computation of Period modules；The first gap periods of 8-
Judgment module；9- the second gap periods judgment modules；10- loop modules；11- judgment modules；12- counting modules；13- exports mould
Block.
Specific embodiment
It should be noted that in the absence of conflict, the feature in embodiment and embodiment in the present invention can phase
Mutually combination.
The present invention provides a kind of motor power frequency interpretation method and device, applied to air-conditioning.Air-conditioning includes body, deposits
Reservoir, processor, Peripheral Interface and motor power frequency judgment means, memory and processor are mounted on body.
Memory and each element of processor are directly or indirectly electrically connected between each other, to realize the transmission of data or friendship
Mutually.It is electrically connected for example, these elements can be realized between each other by one or more communication bus or signal wire.Motor power
Frequency judgment means can be stored in the memory or be consolidated in the form of software or firmware (firmware) including at least one
Change the software function module in the operating system (operating system, OS) of server.The processor is used to perform
The executable module stored in the memory, such as software function module and meter included by motor power frequency judgment means
Calculation machine program etc..
Wherein, the memory may be, but not limited to, random access memory (Random Access Memory,
RAM), read-only memory (Read Only Memory, ROM), programmable read only memory (Programmable Read-Only
Memory, PROM), erasable read-only memory (Erasable Programmable Read-Only Memory, EPROM),
Electricallyerasable ROM (EEROM) (Electric Erasable Programmable Read-Only Memory, EEPROM) etc..
Wherein, for memory for storing program and voice data, the processor performs the journey after execute instruction is received
Sequence.
Processor may be a kind of IC chip, have the processing capacity of signal.Above-mentioned processor can be logical
With processor, including central processing unit (Central Processing Unit, abbreviation CPU), network processing unit (Network
Processor, abbreviation NP) etc.；It can also be digital signal processor (DSP), application-specific integrated circuit (ASIC), ready-made programmable
Gate array (FPGA) either other programmable logic device, discrete gate or transistor logic, discrete hardware components.It can be with
Realize or perform disclosed each method, step and the logic diagram in the embodiment of the present invention.General processor can be micro- place
It can also be any conventional processor etc. to manage device or the processor.
Various input/output devices are coupled to processor and memory by processor.In some embodiments, processor
And memory can be realized in one single chip.In some other example, they can be realized by independent chip respectively.
Various input/output devices are coupled to processor and memory by Peripheral Interface.In some embodiments, peripheral hardware
Interface, processor and memory can be realized in one single chip.In some other example, they can be respectively by independent
Chip is realized.
The present invention will be described in detail below with reference to the accompanying drawings and in conjunction with the embodiments.
Embodiment one
A kind of motor power frequency interpretation method is present embodiments provided, motor power frequency provided in this embodiment judges
Method is applied to air-conditioning.
Motor power frequency interpretation method provided in this embodiment can use the frequency for preceding prejudging power supply in electric appliance
Rate improves service efficiency.
It should be noted that in the present embodiment, step S1, step S2 and step S3 and etc. only represent corresponding generation
Number, and it is not offered as the sequencing of practical execution action.Meanwhile the part step of motor power frequency approach of the present invention
Rapid sequence can be exchanged with each other according to actual needs or part steps therein can also be omitted or be deleted.
When electric appliance provided in this embodiment is air-conditioning, air-conditioning manufacturer can develop the motor of first 50HZ and 60HZ simultaneously.For
Facilitate description, in the present embodiment, by supply frequency for 50HZ or 60HZ, to be specifically described.
In the present embodiment, motor can be the motor that PG motors etc. are worked using alternating current.
It is as follows：
Step S1 detects the interval time of the zero cross signal of power supply；
In the present embodiment, power supply is during startup, and the sine wave or cosine wave of AC signal are in zero crossing
Generate zero cross signal, interval time of the interval time between any two zero cross signal.
Step S2 judges the supply frequency of motor according to interval time.
In the present embodiment, the sine wave of AC signal or cosine wave in one cycle can there are three zero crossing, roots
It may determine that the supply frequency of motor according to interval time.
Wherein, step S2 can include step S3 and step S4.
Step S3 judges the null cycle excessively of zero cross signal according to interval time.
In the present embodiment, the sine wave of AC signal or cosine wave in one cycle can there are three zero crossing, two
The interval time of a zero cross signal is half period or a complete cycle.
Null cycle can be calculated after detecting the interval time of two zero cross signals.
Wherein, step S3 can include step S5 and step S6.
Step S5 judges the gap periods of zero cross signal according to interval time.
In the present embodiment, after detecting interval time, it may appear that deviation, when the interval time detected is rational inclined
In poor range, the gap periods of zero cross signal are can determine whether out.
Wherein, step S5 can include step S7 and step S8,
Step S7 when interval time is in the first preset time section, judges gap periods for the first gap periods.
In the present embodiment, the first preset time section is 7.5Nms≤t ＜ 9.2Nms.Wherein, t is interval time.When
Interval time in the first pre-set interval, judges gap periods for 8.33Nms.Wherein, N is positive integer.It is corresponded to when interval time
Two zero cross signals it is adjacent when, N 1, when interval time corresponding two zero cross signal midfeather, one zero cross signal,
N is 2.The value rule of N can and so on.
In the present embodiment, N 1, i.e., when two zero cross signals are adjacent, can determine whether out gap periods is 8.33ms.N is 2,
When i.e. two zero cross signals are adjacent, can determine whether out gap periods is 16.67ms.
Step S8 when interval time is in the second preset time section, judges gap periods for the second gap periods.
In the present embodiment, the first preset time section is 9.2Nms≤t ＜ 11Nms.Wherein, t is interval time.When
Every the time in the first pre-set interval, judge gap periods for 10Nms.Wherein, N is positive integer.When interval time corresponding two
When a zero cross signal is adjacent, N 1, when interval time corresponding two zero cross signal midfeather, one zero cross signal, N is
2.The value rule of N can and so on.
In the present embodiment, N 1, i.e., when two zero cross signals are adjacent, can determine whether out gap periods is 10ms.N is 2, i.e.,
When two zero cross signals are adjacent, can determine whether out gap periods is 20ms.
In the present embodiment, the lower limiting value in the second preset time section is greater than or equal to the upper of the first preset time section
Limit value, second round are more than the period 1.
Step S6 calculated null cycle according to gap periods.
In the present embodiment, null cycle was calculated according to the following formula：
Wherein, be T it was null cycle, N is positive integer, and t is gap periods.
In the present embodiment, as t=8.33ms, N=1 can calculate T=16.67ms according to above-mentioned formula.Work as t=
During 16.67ms, N=2 can calculate T=16.67ms according to above-mentioned formula.As t=10ms, N=1 can be according to above-mentioned formula meter
Calculate T=20ms.As t=20ms, N=2 can calculate T=20ms according to above-mentioned formula.
Step S4, according to zero passage computation of Period supply frequency.
In the present embodiment, supply frequency is calculated according to the following formula：
Wherein, f is supply frequency, and T was null cycle.
As T=20ms, can f=50HZ be calculated according to above-mentioned formula.
As T=16.67ms, can f=60HZ be calculated according to above-mentioned formula.
Fig. 5 and Fig. 6, step S9 are please referred to, performs step S1 and step S2, out-put supply frequency again.
In the present embodiment, step S1 and step S2 is performed again, exports a supply frequency.
Step S10 judges whether two supply frequencies are equal.
In the present embodiment, step S1 twice and step S2 is performed, exports two supply frequencies.Compare two power supply frequencies
Whether rate is equal, obtains comparison result.
Step S11 is counted according to comparison result, generates count value.
In the present embodiment, according to comparison result, counter can count accordingly, generate count value.
Step S11 can include step S13 and step S14.
Step S13, when two supply frequencies are equal, count value adds up, and circulation step S9- steps S11.
In the present embodiment, when two supply frequencies are equal, counter adds one, and count value is made to add up.
When two supply frequencies are equal, illustrate that the supply frequency judged twice is consistent, count value adds up, and circulation step
S9- step S11 when count value reaches pre-set count values, export the supply frequency.
In the present embodiment, when the supply frequency judged twice before is equal, cycle performs step S9- step S11, than
Whether the supply frequency adjacent compared with two be equal, when multiple supply frequencies are equal, exports the supply frequency.
Step S14, when two supply frequencies are unequal, count value is reset, and circulation step S1, step S2, step S9-
Step S11.
When two supply frequencies are unequal, the supply frequency obtained twice has error, can not judge two supply frequencies
In, which supply frequency is correct supply frequency value, and counter O reset resets count value.Circulation step S1, step
S2, step S9- step S11 when the count value reaches pre-set count values, export the supply frequency.
Step S12 when count value reaches pre-set count values, exports the supply frequency.
In the present embodiment, when count value reaches pre-set count values, i.e., the supply frequency repeatedly exported is equal, and explanation is sentenced
Disconnected supply frequency is accurate, exports the supply frequency.
Preferably, pre-set count values 16.
The operation principle of motor power frequency interpretation method provided in this embodiment：In the present embodiment, two mistakes are detected
Interval time between zero-signal after judging the gap periods of two zero cross signals according to interval time, then calculates zero passage
Period, so as to calculate the supply frequency of motor.Step S1 and step S2 is performed again, compares two obtained supply frequencies,
When equal, count value adds up, and when unequal, count value is reset.Until count value reaches pre-set count values, power supply frequency is exported
Rate.
In conclusion motor power frequency interpretation method provided in this embodiment, the power supply of motor can be accurately judged
Frequency improves service efficiency.
Embodiment two
A kind of motor power frequency judgment means 1 are present embodiments provided, motor power frequency provided in this embodiment is sentenced
Disconnected device 1 can judge the frequency of power supply, improve the efficiency of work.
Referring to Fig. 7, motor power frequency judgment means 1 include time detection module 2 and control module 3.
Time detection module 2, for detecting the interval time of the zero cross signal of power supply.
In embodiments of the present invention, time detection module 2 is used to perform step S1.
Control module 3, for judging the supply frequency of motor according to interval time.
In embodiments of the present invention, control module 3 is used to perform step S2.
Referring to Fig. 8, in the present embodiment, control module 3 includes period judgment module 4 and power supply judgment module 5.
Period judgment module 4, for judging the null cycle excessively of zero cross signal according to interval time.
In embodiments of the present invention, period judgment module 4 is used to perform step S3.
Power supply judgment module 5, for according to zero passage computation of Period supply frequency.
In embodiments of the present invention, power supply judgment module 5 is used to perform step S4.
Referring to Fig. 9, period judgment module 4 includes gap periods judgment module 6 and zero passage computation of Period module 7；
Gap periods judgment module 6, for judging the gap periods of zero cross signal according to interval time
In embodiments of the present invention, gap periods judgment module 6 is used to perform step S5.
Zero passage computation of Period module 7, for calculating null cycle according to gap periods.
In embodiments of the present invention, zero passage computation of Period module 7 is used to perform step S6.
Referring to Fig. 10, gap periods judgment module 6 includes the first gap periods judgment module 8 and the second gap periods are sentenced
Disconnected module 9.
First gap periods judgment module 8, for when interval time is in the first preset time section, between judgement every other week
Phase is the first gap periods.
In embodiments of the present invention, the first gap periods judgment module 8 is used to perform step S7.
Second gap periods judgment module 9, for when interval time is in the second preset time section, between judgement every other week
Phase is the second gap periods.
In embodiments of the present invention, the second gap periods judgment module 9 is used to perform step S8.
1 is please referred to Fig.1, loop module 10, for performing step S1 and step S2, out-put supply frequency again.
In embodiments of the present invention, loop module is used to perform step S9.
Judgment module 11 judges whether two supply frequencies are equal；
In embodiments of the present invention, judgment module is used to perform step S10.
Counting module 12 for being counted according to comparison result, generates count value；
In the present embodiment, counting module can be counter.
Counting module 12 is additionally operable to when two supply frequencies are equal, and count value adds up.
Counting module 12 is additionally operable to when two supply frequencies are unequal, and count value is reset.
In embodiments of the present invention, judgment module is used to perform step S11, step S13 and step S14.
Output module 13 reaches pre-set count values for working as count value, exports the supply frequency.
In embodiments of the present invention, output module, for performing step S12.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all essences in the present invention
With within principle, any modification, equivalent replacement, improvement and so on should all be included in the protection scope of the present invention god.
Claims (10)
1. a kind of motor power frequency interpretation method, which is characterized in that the motor power frequency interpretation method includes：
Step S1 detects the interval time of the zero cross signal of power supply；
Step S2 judges the supply frequency of motor according to the interval time.
2. motor power frequency interpretation method according to claim 1, which is characterized in that the step S1 includes：
Step S3 judges the null cycle excessively of the zero cross signal according to the interval time；
Step S4, according to supply frequency described in the zero passage computation of Period.
3. motor power frequency interpretation method according to claim 2, which is characterized in that the step S3 includes：
Step S5 judges the gap periods of the zero cross signal according to the interval time；
Step S6 calculates the null cycle excessively according to the gap periods.
4. motor power frequency interpretation method according to claim 3, which is characterized in that the step S5 includes：
Step S7, when the interval time is in the first preset time section, judge it is described cross null cycle between first every other week
Phase；
Step S8, when the interval time is in the second preset time section, judge it is described cross null cycle between second every other week
Phase, wherein, the lower limiting value in the second preset time section is greater than or equal to the upper limit value in the first preset time section, and described the
Two gap periods are more than first gap periods.
5. motor power frequency interpretation method according to claim 3, which is characterized in that the step S6 includes：Foundation
The following formula calculated null cycle：
Wherein, be T it was null cycle, n is positive integer, and t is gap periods.
6. motor power frequency interpretation method according to claim 2, which is characterized in that the step S4 includes：Foundation
The following formula calculates the supply frequency：
Wherein, f is supply frequency, and T was null cycle.
7. motor power frequency interpretation method according to claim 1, which is characterized in that the motor power frequency judges
Method further includes：
Step S9 performs step S1 and step S2, exports the supply frequency again；
Step S10 judges whether two supply frequencies are equal；
Step S11 is counted according to comparison result, generates count value；
Step S12 when the count value reaches pre-set count values, exports the supply frequency.
8. motor power frequency interpretation method according to claim 7, which is characterized in that the step S11 includes：
Step S13, when two supply frequencies are worth equal, the count value adds up, and recycles step described in the step S9-
Rapid S11；
Step S14, when two supply frequencies values are unequal, the count value is reset, and recycles the step S1, described
Step S2, step S11 described in the step S9-.
9. a kind of motor power frequency judgment means, which is characterized in that including：
Time detection module, for detecting the interval time of the zero cross signal of power supply；
Control module, for judging the supply frequency of motor according to the interval time.
10. a kind of air-conditioning, which is characterized in that including：
Memory；
Processor；And
Motor power frequency judgment means, the motor power frequency judgment means are installed in the memory and including one
Or multiple software function modules performed by the processor, the motor power frequency judgment means include：
Time detection module, for detecting the interval time of the zero cross signal of power supply；
Control module, for judging the supply frequency of motor according to the interval time.
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| CN113763590A (en) * | 2021-08-30 | 2021-12-07 | 惠州拓邦电气技术有限公司 | Electrical equipment working time calculation method and device, storage medium and electrical equipment |
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