CN104090189B - A kind of equipment working state detection method and equipment working state detection means - Google Patents
A kind of equipment working state detection method and equipment working state detection means Download PDFInfo
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- CN104090189B CN104090189B CN201410347809.1A CN201410347809A CN104090189B CN 104090189 B CN104090189 B CN 104090189B CN 201410347809 A CN201410347809 A CN 201410347809A CN 104090189 B CN104090189 B CN 104090189B
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Abstract
The invention discloses a kind of equipment working state detection method and equipment working state detection means, wherein, a kind of equipment working state detection method includes：S working current value of the collecting device under current state, and average filter is weighted to the S working current value, the working current value under the equipment current state is obtained, wherein, the S is not less than 2；According to the working current value under the obtained equipment current state and default working condition current threshold section, the current working condition of the equipment is determined；According to the working current value under the obtained equipment current state, working condition current threshold section corresponding to the equipment current state is updated.Technical scheme provided in an embodiment of the present invention can effectively improve the accuracy of equipment working state differentiation.
Description
Technical field
The present invention relates to monitoring of tools field, and in particular to a kind of equipment working state detection method and equipment working state
Detection means.
Background technology
At present, intelligentized digital family system or module just little by little come into average family.Wherein, to household electrical appliance etc.
Equipment, which carries out intelligentized monitoring, is the core component of wired home, and wants to realize the intellectuality of equipment and system, past
It is past to need first to obtain the working condition (such as off-mode, holding state, running status, malfunction etc.) of equipment, so
Intelligentized decision-making and further control could be carried out to equipment, realizes intelligentized closed-loop system.
At present, the method for discrimination for the working condition of equipment is typically the operating current size using monitoring device, so
The operating current size of the equipment monitored and default threshold value are subjected to contrast judgement afterwards, finally determine the work shape of equipment
State.But there is following defect in such method：Threshold value is fixed, and usually developer is electric according to the working condition of common equipment
Stream is preset, and this, which is inevitably resulted in, to make accurate judgement to the working condition of some special installations
(running current of such as some equipment is also lower than default standby current threshold value, or some equipment standby current than default fortune
Row electric current is also high), so as to influence the decision-making of intellectualizing system.
The content of the invention
The present invention provides a kind of equipment working state detection method and equipment working state detection means, for improving equipment
The accuracy that working condition differentiates.
First aspect present invention provides a kind of equipment working state detection method, comprises the following steps：
A, S working current value of the collecting device under current state, and the S working current value is weighted flat
Filter, obtain the working current value under the equipment current state, wherein, the S is not less than 2；
B, according to the working current value under the obtained equipment current state and default working condition current threshold area
Between, determine the current working condition of the equipment；
C, according to the working current value under the obtained equipment current state, update corresponding to the equipment current state
Working condition current threshold section.
Second aspect of the present invention provides a kind of equipment working state detection means, including：
First collecting unit, for S working current value of the collecting device under current state, wherein, the S is not less than
2；
Weighted filtering unit, the S working current value for being gathered to first collecting unit are weighted flat
Filter, obtain the working current value under the equipment current state；
First determining unit, for the work electricity under the equipment current state that is obtained according to the weighted filtering unit
Flow valuve and default working condition current threshold section, determine the current working condition of the equipment；
Updating block, for the operating current under the equipment current state that is obtained according to the weighted filtering unit
Value, updates working condition current threshold section corresponding to the equipment current state.
Therefore, on the one hand, the present invention is added by multiple working current values of the collecting device under current state
Weight average filters, and working current value of the equipment under current state is determined so that the obtained equipment is in current shape
Working current value under state is more reliable；On the other hand, it is determined that after the current working condition of equipment, working as according to equipment is obtained
Working current value under preceding state, update working condition current threshold section corresponding to the equipment current state, so as to avoid because
The reason such as power-supply fluctuation or equipment aging itself causes equipment working state curent change and causes the working condition mistake to equipment
The drawbacks of sentencing, further increase the accuracy of equipment working state differentiation.
Brief description of the drawings
In order to illustrate more clearly about the embodiment of the present invention or technical scheme of the prior art, below will be to embodiment or existing
There is the required accompanying drawing used in technology description to be briefly described, it should be apparent that, drawings in the following description are only this
Some embodiments of invention, for those of ordinary skill in the art, without having to pay creative labor, may be used also
To obtain other accompanying drawings according to these accompanying drawings.
Fig. 1-a are a kind of equipment working state detection method one embodiment schematic flow sheet provided by the invention；
Fig. 1-b are one embodiment flow signal of the working current value under acquisition equipment current state provided by the invention
Figure；
Fig. 2-a are one embodiment flow signal of working condition current threshold section initial value provided by the invention setting
Figure；
Fig. 2-b are that one embodiment flow of the central value in determination working condition current threshold section provided by the invention is shown
It is intended to；
Fig. 3 is a kind of equipment working state detection means one embodiment structural representation provided by the invention.
Embodiment
To enable goal of the invention, feature, the advantage of the present invention more obvious and understandable, below in conjunction with the present invention
Accompanying drawing in embodiment, the technical scheme in the embodiment of the present invention is clearly and completely described, it is clear that described reality
It is only part of the embodiment of the present invention to apply example, and not all embodiments.Based on the embodiment in the present invention, the common skill in this area
The every other embodiment that art personnel are obtained under the premise of creative work is not made, belong to the model that the present invention protects
Enclose.
The embodiments of the invention provide a kind of equipment working state detection method, including：Collecting device is under current state
S working current value, and average filter is weighted to the S working current value, obtained under the equipment current state
Working current value, wherein, the S be not less than 2；According to the working current value under the obtained equipment current state and preset
Working condition current threshold section, determine the current working condition of the equipment；According to the obtained equipment current state
Under working current value, update working condition current threshold section corresponding to the equipment current state.Accordingly, the present invention is real
Apply example and additionally provide a kind of equipment working state detection means.It is described in detail individually below.
As shown in Fig. 1-a, a kind of equipment working state detection method in the embodiment of the present invention, including：
The S working current value of step 101, collecting device under current state, and above-mentioned S working current value is carried out
Weighted average filters, and obtains the working current value under the said equipment current state, wherein, above-mentioned S is not less than 2；
Due to being inevitably interfered in data acquisition, to improve the accurate of equipment working state differentiation
Property, when needing the working condition of detection device, S work of the equipment working state detection means collecting device under current state
Average filter processing is weighted as current value, obtains the working current value under the said equipment current state.Specifically, equipment work
Make the process of the working current value under condition checkout gear acquisition equipment current state as shown in Fig. 1-b：
Step A1, S working current value under collecting device current state；
Wherein, above-mentioned S is not less than 2, i.e. two or two under equipment working state detection means collecting device current state
Working current value more than individual.
Step A2, the average value of above-mentioned S working current value is calculated.
Step A3, it is respectively above-mentioned according to the difference of each working current value and the average value of above-mentioned S working current value
Each working current value distribution weight coefficient in S working current value；
Wherein, for working current value distribution weight coefficient and above-mentioned difference into negative correlation, and, distribute to above-mentioned S work
Make the S weight coefficient of current value and for 1.
Step A4, the current working current value of the said equipment is calculated according to the first formula；
Wherein, above-mentioned first formula is：Wherein, IcurrentFor under the said equipment current state
Working current value, xbRepresent b-th of working current value, CbX is distributed in expressionbWeight coefficient.
Illustrate below and the working current value under the acquisition equipment current state shown in Fig. 1-b is described, needing to examine
During the working condition of measurement equipment, equipment working state detection means gathers S working current value under the equipment current state, false
If the S working current value collected is：
IAC={ x1,x2,…,xS}
So can be according to the data set I collectedACAverage value and each working current value between difference to every
Individual working current value carries out weight distribution, finally realizes the effect of weighted average filtering.Assuming that data set IACAverage value beSo basisDifference with each working current value is to data set IACIt is ranked up.It is assuming that small big to difference from difference
Ranking results be：
IBC={ xb1,xb2,…,xbS}
So each working current value is followed successively by according to the big principle of the small numerical value weight coefficient of difference distribute a power
Weight coefficient, i.e. to xb1Distribute weight coefficient C1, to xb2Distribute weight coefficient C2, to xbSDistribute weight coefficient CS, by that analogy,
And weight coefficient meets：
The working current value obtained under the said equipment current state can be calculated according to above-mentioned first formula afterwards.
Certainly, in the embodiment of the present invention, equipment working state detection means can also need the work shape of detection device
During state, obtain multiple working current values of the said equipment current state and seek the average value of multiple working current values, by multiple works
Make the average value of current value as the working current value under the said equipment current state, be not construed as limiting herein.
Working current value and default working condition electric current under the said equipment current state that step 102, basis obtain
Threshold interval, determine the current working condition of the said equipment；
In the embodiment of the present invention, pre-set the said equipment various working conditions (such as off-mode, holding state and
Running status) corresponding to working condition current threshold section, equipment working state detection means obtains the said equipment in step 101
After working current value under current state, according to the working current value under obtained the said equipment current state and default work
State current threshold interval, determine the current working condition of the said equipment.
Illustrate, it is assumed that working condition current threshold section corresponding to the off-mode of equipment is [I1, I2], equipment
Working condition current threshold section corresponding to holding state is (I3, I4], working condition current threshold corresponding to the running status of equipment
Value section is (I5, I6], if the working condition current threshold section where working current value under equipment current state is [I1,
I2], it is determined that the current working condition of the equipment is off-mode, if the work where the working current value under equipment current state
It is (I to make state current threshold interval3, I4], it is determined that the current working condition of the equipment is holding state, if the current shape of equipment
Working condition current threshold section where working current value under state is (I5, I6], it is determined that the current working condition of the equipment
For running status.Because under normal circumstances, equipment is more than work of the equipment in holding state in the working current value of running status
Current value, and equipment is more than working current value of the equipment in off-mode, therefore, I in the working current value of holding state2≤I3
And I4≤I5。
It should be noted that the working condition of the equipment in the embodiment of the present invention is also possible to as malfunction, due at certain
In the case of a little, when equipment is in malfunction, the operating current of equipment will be greater than the operating current of equipment under operation,
Therefore, the threshold range under equipment can be nonserviceabled in the embodiment of the present invention is defined as (I6,+∞).When equipment is current
Working condition current threshold section where working current value under state is (I6,+∞), it is determined that the current work of the equipment
State is malfunction.
Working current value under the said equipment current state that step 103, basis obtain, updates the said equipment current state
Corresponding working condition current threshold section；
In the embodiment of the present invention, equipment working state detection means is obtained under the said equipment current state in step 101
After working current value, according to the working current value under obtained the said equipment current state and default working condition current threshold
Section, update working condition current threshold section corresponding to the said equipment current state.
Optionally, equipment working state detection means step 101 obtains the working current value under the said equipment current state,
Working condition current threshold section corresponding to the said equipment current state is updated to：
(Ia, Ib*Co+Ic*Cc+△Ib]；
Wherein, above-mentioned IaRepresent before this renewal, working condition current threshold corresponding to the said equipment current state
The lower limit in section；Above-mentioned IbRepresent before this renewal, working condition current threshold corresponding to the said equipment current state
The central value in section；Above-mentioned IcRepresent the working current value under the said equipment current state；△IbRepresent before this renewal,
The deviation in working condition current threshold section corresponding to the said equipment current state；CoAnd CcMeet following condition：
0≤Co≤ 1,0≤Cc≤1,Co+Cc=1.
Optionally, equipment working state detection means is always according to the operating current under obtained the said equipment current state
Value, according to the above-mentioned scheme being updated to working condition current threshold section corresponding to equipment current state, to the said equipment
Working condition current threshold section is updated corresponding to other states.
Therefore, on the one hand, the present invention is added by multiple working current values of the collecting device under current state
Weight average filters, and working current value of the equipment under current state is determined so that the obtained equipment is in current shape
Working current value under state is more reliable；On the other hand, it is determined that after the current working condition of equipment, working as according to equipment is obtained
Working current value under preceding state, update working condition current threshold section corresponding to the equipment current state, so as to avoid because
The reason such as power-supply fluctuation or equipment aging itself causes equipment working state curent change and causes the working condition mistake to equipment
The drawbacks of sentencing, further increase the accuracy of equipment working state differentiation.
Equipment working state detection method in the embodiment of the present invention also includes working condition current threshold section initial value
Setting procedure, as shown in Fig. 2-a, the working condition current threshold section initial value setting procedure in the embodiment of the present invention includes：
201st, the central value in working condition current threshold section of the said equipment under various working conditions is determined respectively；
In a kind of application scenarios, equipment is set to be separately operable in various working conditions, and difference collecting device is in same work
Make multiple working current values under state, using the average value of the multiple working current values collected as equipment in relevant work
The central value in the working condition current threshold section under state.
Illustrated by taking the running status of equipment as an example, equipment working state detection means is in running status in equipment
Under, the multiple working current values of collecting device under operation, and by the average value of the multiple working current values collected
It is defined as the central value in the working condition current threshold section of equipment under operation, similarly, other operations for equipment
State, such as holding state and off-mode, equipment working state detection means by the equipment collected in the standby state
The average value of multiple working current values be defined as the central value in the working condition current threshold section of equipment in the standby state,
The average value of multiple working current values of the equipment working state detection means by the equipment collected in the power-offstate determines
For the central value in the working condition current threshold section of equipment in the power-offstate.
Further to improve the accuracy of the central value in working condition current threshold section, optionally, the embodiment of the present invention
In equipment working state detection means be directed to the different working condition of equipment, collecting device is multigroup under certain working condition
Working current value, then choose working condition current threshold of the one group of minimum computing device of sample standard deviation in the working condition
It is worth the central value in section.A kind of specifically, meter of the central value in working condition current threshold section of the equipment under working condition
Calculation process is as shown in Fig. 2-b：
The M group operating currents of B1, collecting device under same working condition, wherein, every group of operating current includes N number of work
Current value, and M and N are not less than 2.
B2, the sample standard deviation value for calculating every group of working current value；
Equipment working state detection means calculates above-mentioned M groups operating current respectively according to sample standard deviation value calculation formula
Sample standard deviation value.Wherein, sample standard deviation value calculation formula is as follows：
Wherein, siRepresent the sample standard deviation value of i-th group of operating current, xaRepresent the
A-th of working current value in i group operating currents,Represent the average value of N number of working current value in i-th group of operating current.
B3, using the average value of N number of working current value in one group of minimum operating current of sample standard deviation value as upper
State the central value in working condition current threshold section corresponding to the working condition of equipment.
Illustrate below and the calculating process of the central value in the working condition current threshold section shown in Fig. 2-b be described,
So that equipment is in running status as an example, it is assumed that M takes 5,5 groups of current datas difference that equipment is collected in the case where running working condition
For：
Its sample standard deviation value is calculated according to above-mentioned sample standard deviation value calculation formula respectively.Assuming that result of calculation point
Wei not S1, S2, S3, S4, S5.Minimum value is determined in result of calculation, it is assumed that minimum value S1, then IA1={ x11,
x12,…,x1NAverage value as central value of the equipment in working condition current threshold section corresponding to running status.
202nd, the central value in the working condition current threshold section according to the said equipment under various working conditions, it is true respectively
Determine working condition current threshold section of the said equipment under various working conditions；
Illustrate, it is assumed that central value of the equipment in working condition current threshold section corresponding to off-mode is Iclose,
Central value of the equipment in working condition current threshold section corresponding to holding state is Istandby, equipment is corresponding to running status
The central value in working condition current threshold section is Inormal, then, equipment working state detection means is according to Iclose、Istandby
And InormalDetermine equipment working state detection means in the shape that worked corresponding to off-mode, holding state and running status respectively
State current threshold section, wherein, equipment includes I in working condition current threshold section corresponding to off-modeclose, equipment treating
Working condition current threshold section includes I corresponding to machine statestandby, equipment is in working condition current threshold corresponding to holding state
Value section includes Inormal。
Due under normal circumstances, Iclose、IstandbyAnd InormalIt should meet：Iclose<Istandby<Inormal, it is therefore, optional
, equipment working state detection means is according to Iclose、IstandbyAnd Inormal, to equipment working state detection means in shutdown shape
Working condition current threshold section under state, holding state and running status is divided as follows：Determine the off-mode of equipment
Corresponding working condition current threshold section is：[0, Iclose+△Iclose]；Determine work shape corresponding to the holding state of equipment
State current threshold section is：(Iclose+△Iclose, Istandby+△Istandby]；Determine work shape corresponding to the running status of equipment
State current threshold section is：(Istandby+△Istandby, Inormal+△Inormal]；Wherein, △ Istandby=Istandby/ 2, △
Inormal=Inormal/ 2, △ IcloseFor preset value, and △ Iclose<Istandby+△Istandby-Iclose。
Certainly, in the embodiment of the present invention, equipment working state detection means can also be according to Iclose、IstandbyAnd Inormal,
Working condition current threshold section of the equipment working state detection means under off-mode, holding state and running status is entered
The other divisions of row, it is only necessary to meet：Working condition current threshold section includes I corresponding to the off-mode of equipmentclose, equipment
Working condition current threshold section includes I corresponding to holding statestandby, working condition electric current corresponding to the running status of equipment
The threshold range of threshold interval includes Inormal, and working condition current threshold section corresponding to the different working condition of equipment is not
It is overlapping.
It should be noted that the embodiment of the present invention only needs the working condition electric current under the various working conditions to equipment
Threshold interval carries out operation during Initialize installation once, need not rerun in the working condition flow of follow-up detection device,
Certainly, after Initialize installation is completed in the working condition current threshold section under the various working conditions of equipment, user also may be used
To rerun the flow in embodiment illustrated in fig. 2 according to actual conditions, again to the work under the various working conditions of equipment
State current threshold interval carries out Initialize installation, is not construed as limiting herein.
Therefore, on the one hand, the present invention is added by multiple working current values of the collecting device under current state
Weight average filters, and working current value of the equipment under current state is determined so that the obtained equipment is in current shape
Working current value under state is more reliable；On the other hand, it is determined that after the current working condition of equipment, working as according to equipment is obtained
Working current value under preceding state, update working condition current threshold section corresponding to the equipment current state, so as to avoid because
The reason such as power-supply fluctuation or equipment aging itself causes equipment working state curent change and causes the working condition mistake to equipment
The drawbacks of sentencing, further increase the accuracy of equipment working state differentiation.
The embodiment of the present invention also provides a kind of equipment working state detection means, as shown in figure 3, in the embodiment of the present invention
Equipment working state detection means 300, including：
First collecting unit 301, for S working current value of the collecting device under current state, wherein, above-mentioned S is not
Less than 2；
Weighted filtering unit 302, the above-mentioned S working current value for being gathered to the first collecting unit 301 are weighted
Average filter, obtain the working current value under the said equipment current state；
First determining unit 303, for the work under the said equipment current state for being obtained according to weighted filtering unit 302
Current value and default working condition current threshold section, determine the current working condition of the said equipment；
Updating block 304, for the operating current under the said equipment current state for being obtained according to weighted filtering unit 302
Value, update working condition current threshold section corresponding to the said equipment current state.
Optionally, above-mentioned working condition includes off-mode, holding state and running status；In embodiment illustrated in fig. 3
On the basis of, the equipment working state detection means in the embodiment of the present invention also includes：
Initialization unit, for initializing operating current threshold interval of the said equipment under various working conditions；
Second determining unit, is used for：
Determine that working condition current threshold section is corresponding to off-mode：[0, Iclose+△Iclose]；
Determine that working condition current threshold section is corresponding to holding state：(Iclose+△Iclose, Istandby+△
Istandby]；
Determine that working condition current threshold section is corresponding to running status：
(Istandby+△Istandby, Inormal+△Inormal]；
Wherein, above-mentioned IcloseFor the central value in working condition current threshold section corresponding to the off-mode of the said equipment,
Above-mentioned IstandbyFor the central value in working condition current threshold section corresponding to the holding state of the said equipment, above-mentioned InormalFor
The central value in working condition current threshold section, △ I corresponding to the running status of the said equipmentstandby=Istandby/ 2, △
Inormal=Inormal/ 2, △ IcloseFor preset value, and △ Iclose<Istandby+△Istandby-Iclose；
Above-mentioned initialization unit specifically includes：
Second collecting unit, for gathering M group operating current of the said equipment under same working condition, wherein, every group
Operating current includes N number of working current value, and M and N are not less than 2；
First computing unit, for calculating the sample standard deviation value of every group of working current value；
Sub- determining unit, for by N number of working current value in one group of minimum operating current of sample standard deviation value
Central value of the average value as working condition current threshold section corresponding to the working condition of the said equipment.
Optionally, updating block 304 is specifically used for：
Working condition current threshold section corresponding to the equipment current state is updated to：
(Ia, Ib*Co+Ic*Cc+△Ib]；
Wherein, above-mentioned IaRepresent before this renewal, working condition current threshold corresponding to the said equipment current state
The lower limit in section；Above-mentioned IbRepresent before this renewal, working condition current threshold corresponding to the said equipment current state
The central value in section；Above-mentioned IcWorking current value in expression under the equipment current state；△IbRepresent to update it at this
Before, the deviation in working condition current threshold section corresponding to the said equipment current state；CoAnd CcMeet following condition：
0≤Co≤ 1,0≤Cc≤1,Co+Cc=1.
Optionally, weighted filtering unit 302 includes：
Second computing unit, for calculating the average value of above-mentioned S working current value；
Allocation unit, for the difference according to each working current value and the average value of above-mentioned S working current value, difference
Weight coefficient is distributed for each working current value in above-mentioned S working current value, wherein, for the weight of working current value distribution
Coefficient and above-mentioned difference into negative correlation, and, distribute to the S weight coefficient of above-mentioned S working current value and be 1；
3rd computing unit, for calculating the working current value under the said equipment current state according to the first formula, wherein,
Above-mentioned first formula is：Wherein, IcurrentFor the working current value under the equipment current state, xb
Represent b-th of working current value, CbX is distributed in expressionbWeight coefficient.
In several embodiments provided herein, it should be understood that disclosed apparatus and method, it can be passed through
Its mode is realized.For example, device embodiment described above is only schematical, for example, the division of said units, only
Only a kind of division of logic function, there can be other dividing mode when actually realizing, such as multiple units or component can be tied
Another system is closed or is desirably integrated into, or some features can be ignored, or do not perform.It is another, it is shown or discussed
Mutual coupling or direct-coupling or communication connection can be the INDIRECT COUPLINGs or logical by some interfaces, device or unit
Letter connection, can be electrical, mechanical or other forms.
It should be noted that for foregoing each method embodiment, in order to which simplicity describes, therefore it is all expressed as a series of
Combination of actions, but those skilled in the art should know, the present invention is not limited by described sequence of movement because
According to the present invention, some steps can use other orders or carry out simultaneously.Secondly, those skilled in the art should also know
Know, embodiment described in this description belongs to preferred embodiment, and involved action and module might not all be this hairs
Necessary to bright.
In the above-described embodiments, the description to each embodiment all emphasizes particularly on different fields, and does not have the portion being described in detail in some embodiment
Point, it may refer to the associated description of other embodiments.
It is to a kind of equipment working state detection method provided by the present invention and equipment working state detection means above
Description, for those of ordinary skill in the art, according to the thought of the embodiment of the present invention, in embodiment and using model
There will be changes are placed, to sum up, this specification content should not be construed as limiting the invention.
Claims (8)
1. a kind of equipment working state detection method, it is characterised in that comprise the following steps：
A, S working current value of the collecting device under current state, and average filter is weighted to the S working current value
Ripple, the working current value under the equipment current state is obtained, wherein, the S is not less than 2；
B, the working current value under the equipment current state that basis obtains and default working condition current threshold section, really
The current working condition of the fixed equipment；
C, according to the working current value under the obtained equipment current state, update and worked corresponding to the equipment current state
State current threshold interval；
Wherein, the step C includes：
Working condition current threshold section corresponding to the equipment current state is updated to：
(Ia, Ib*Co+Ic*Cc+△Ib]；
Wherein, the IaRepresent before this renewal, working condition current threshold section corresponding to the equipment current state
Lower limit；The IbRepresent before this renewal, working condition current threshold section corresponding to the equipment current state
Central value；The IcRepresent the working current value under the equipment current state；△IbRepresent before this renewal, it is described to set
The deviation in working condition current threshold section corresponding to standby current state；CoAnd CcMeet following condition：
0≤Co≤ 1,0≤Cc≤1,Co+Cc=1.
2. according to the method for claim 1, it is characterised in that also including the working condition current threshold section initial value
Setting procedure：
D, the central value in working condition current threshold section of the equipment under various working conditions is determined respectively；
E, the central value in the working condition current threshold section according to the equipment under various working conditions, respectively described in determination
Working condition current threshold section of the equipment under various working conditions.
3. according to the method for claim 2, it is characterised in that the step D includes：
Following operation is performed respectively for every kind of working condition of the equipment：
The M group operating currents of D1, the collection equipment under same working condition, wherein, every group of operating current includes N number of work
Current value, and M and N are not less than 2；
D2, the sample standard deviation value for calculating every group of working current value；
D3, the average value of N number of working current value in one group of minimum operating current of sample standard deviation value set as described in
The central value in working condition current threshold section corresponding to the standby working condition.
4. according to the method for claim 3, it is characterised in that the working condition include off-mode, holding state and
Running status；
The step E includes：
Determine that working condition current threshold section is corresponding to off-mode：[0, Iclose+△Iclose]；
Determine that working condition current threshold section is corresponding to holding state：
(Iclose+△Iclose, Istandby+△Istandby]；
Determine that working condition current threshold section is corresponding to running status：
(Istandby+△Istandby, Inormal+△Inormal]；
Wherein, the IcloseIt is described for central value of the equipment in working condition current threshold section corresponding to off-mode
IstandbyFor central value of the equipment in working condition current threshold section corresponding to holding state, the InormalTo be described
Equipment is in the central value in working condition current threshold section corresponding to running status, △ Istandby=Istandby/ 2, △ Inormal=
Inormal/ 2, △ IcloseFor preset value, and △ Iclose<Istandby+△Istandby-Iclose。
5. according to the method described in any one of Claims 1-4, it is characterised in that the step A includes：
Calculate the average value of the S working current value；
According to the difference of each working current value and the average value of the S working current value, respectively described S operating current
Each working current value distribution weight coefficient in value, wherein, for working current value distribution weight coefficient and the difference into
Negative correlation, and, distribute to the S weight coefficient of the S working current value and for 1；
Working current value under the equipment current state is calculated according to the first formula；
Wherein, first formula is：Wherein, IcurrentFor the work electricity under the equipment current state
Flow valuve, xbRepresent b-th of working current value, CbX is distributed in expressionbWeight coefficient.
A kind of 6. equipment working state detection means, it is characterised in that including：
First collecting unit, for S working current value of the collecting device under current state, wherein, the S is not less than 2；
Weighted filtering unit, the S working current value for being gathered to first collecting unit are weighted average filter
Ripple, obtain the working current value under the equipment current state；
First determining unit, for the working current value under the equipment current state that is obtained according to the weighted filtering unit
With default working condition current threshold section, the current working condition of the equipment is determined；
Updating block, for the working current value under the equipment current state that is obtained according to the weighted filtering unit, more
Working condition current threshold section corresponding to the new equipment current state；
The updating block is specifically used for：
Working condition current threshold section corresponding to the equipment current state is updated to：
(Ia, Ib*Co+Ic*Cc+△Ib]；
Wherein, the IaRepresent before this renewal, working condition current threshold section corresponding to the equipment current state
Lower limit；The IbRepresent before this renewal, working condition current threshold section corresponding to the equipment current state
Central value；The IcRepresent the working current value under the equipment current state；△IbRepresent before this renewal, it is described to set
The deviation in working condition current threshold section corresponding to standby current state；CoAnd CcMeet following condition：
0≤Co≤ 1,0≤Cc≤1,Co+Cc=1.
7. equipment working state detection means according to claim 6, it is characterised in that the working condition includes shutdown
State, holding state and running status；
The equipment working state detection means also includes：
Initialization unit, for initializing operating current threshold interval of the equipment under various working conditions；
Second determining unit, is used for：
Determine that working condition current threshold section is corresponding to off-mode：[0, Iclose+△Iclose]；
Determine that working condition current threshold section is corresponding to holding state：(Iclose+△Iclose, Istandby+△Istandby]；
Determine that working condition current threshold section is corresponding to running status：
(Istandby+△Istandby, Inormal+△Inormal]；
Wherein, the IcloseIt is described for the central value in working condition current threshold section corresponding to the off-mode of the equipment
IstandbyFor the central value in working condition current threshold section corresponding to the holding state of the equipment, the InormalTo be described
The central value in working condition current threshold section, △ I corresponding to the running status of equipmentstandby=Istandby/ 2, △ Inormal=
Inormal/ 2, △ IcloseFor preset value, and △ Iclose<Istandby+△Istandby-Iclose；
The initialization unit specifically includes：
Second collecting unit, for gathering M group operating current of the equipment under same working condition, wherein, every group of work
Electric current includes N number of working current value, and M and N are not less than 2；
First computing unit, for calculating the sample standard deviation value of every group of working current value；
Sub- determining unit, for being averaged N number of working current value in one group of minimum operating current of sample standard deviation value
It is worth the central value as working condition current threshold section corresponding to the working condition of the equipment.
8. the equipment working state detection means according to claim 6 or 7, it is characterised in that the weighted filtering unit,
Including：
Second computing unit, for calculating the average value of the S working current value；
Allocation unit, for the difference according to each working current value and the average value of the S working current value, respectively institute
Each working current value distribution weight coefficient in S working current value is stated, wherein, for the weight coefficient of working current value distribution
With the difference into negative correlation, and, distribute to the S weight coefficient of the S working current value and for 1；
3rd computing unit, for calculating the working current value under the equipment current state according to the first formula, wherein, it is described
First formula is：Wherein, IcurrentFor the working current value under the equipment current state, xbRepresent
B-th of working current value, CbX is distributed in expressionbWeight coefficient.
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| CN109001527B (en) * | 2018-10-17 | 2021-06-01 | 北京弘浩千瑞科技有限公司 | Equipment working state detection method |
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