CN109711727A - Electronic product processing technology combination evaluation system and its evaluation method - Google Patents
Electronic product processing technology combination evaluation system and its evaluation method Download PDFInfo
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Abstract
The invention discloses a kind of electronic product processing technology combination evaluation system and methods, wherein, evaluation system includes evaluation index building module, manufacturing process memory module and the group technology evaluation module connecting with manufacturing process memory module and evaluation index building module；Group technology evaluation module includes: multiple original process evaluation methods composition sets of evaluation methods that original method collection evaluation module is used to read user's selection, and makees first score to the raw data matrix that technique to be evaluated constructs using each original process evaluation method chosen；Compatible methods set screening module, which is used to reject evaluation method using fuzzy cluster analysis calculating method, concentrates incompatible original process evaluation method, and obtains compatible methods set；The driftance to score for the first time that overall merit module is used to calculate original technology assessment method in compatible methods set to technique to be evaluated, and be that the combination evaluation of each technique to be evaluated is obtained after weighted according to tax weight is carried out with driftance.
Description
Technical field
The present invention relates to Product Process Rationality Assessments, and in particular to a kind of electronic product processing technology combination evaluation system
And its evaluation method.
Background technique
Environment, resource, population become current mankind and develop the main bugbear that should be faced, wherein and environment difficulties are especially prominent,
The degenerating to bring to our livelihood with prosperity of environment obstructs.Manufacturing industry and our ecological environment are closely bound up, on one side
Ask for resource, the energy to environment, another side again by the waste discharge of generation wherein.Green manufacturing is to manufacture, environment and pipe
Reason field carries out the intersection subject of comprehensive study, and green manufacturing research category almost covers all of product life cycle and asks
Topic, is performance of the green idea in current manufacturing industry.
Process planning is the core link of manufacturing process, is the key that connection research and development of products and manufacture tie, process planning
Superiority and inferiority should not be only related to resulting product performance, more should be close with the resources and environment problems in entire production link
Connection.The resource consumption Yu environment that traditional handicraft planning often has ignored manufacture system in production process influence, and only take into account
The feasibility and economy that process planning scheme is implemented, largely cause the wasting of resources and environmental disruption, for that can hold
Hidden danger has been buried in supervention exhibition, and friendly process planning is making up and advanced optimizing to traditional handicraft, is one in traditional work
The technological means of resource consumption and environmental hazard is fully considered on the basis of skill planning.Therefore, process planning scheme is closed
Reason, science selection with evaluation optimization be green manufacturing an important probing direction, be conducive to alleviate survival and development of mankind with
The nervous atmosphere of earth environment, has catered to the mainstream of current sustainable development, is the thought of sustainable Green Development in manufacturing industry
In full and accurate performance.
Summary of the invention
For above-mentioned deficiency in the prior art, electronic product processing technology combination evaluation system provided by the invention and its
Evaluation method can reduce resource consumption, protection environment in advance under, can be by same electronic product difference processing technology side
Case is compared, and determines optimum process route.
In order to achieve the above object of the invention, the technical solution adopted by the present invention are as follows:
In a first aspect, providing electronic product processing technology combination evaluation system comprising evaluation index constructs module, manufacture
Technique memory module and the group technology evaluation module being connect with manufacturing process memory module and evaluation index building module；
Evaluation index constructs module, for receiving the evaluation index of electronic product technique to be evaluated, and according to evaluation index
Construct the raw data matrix of electronic product；
The evaluation index includes multiple first class index, and each first class index includes multiple two-level index, and the level-one refers to
Mark includes that processing quality, process time, processing cost, resource consumption and environment influence；
Manufacturing process memory module, the original process evaluation evaluated for storing a variety of pairs of electronic product processing technologys
Method；
The group technology evaluation module includes sequentially connected original method collection evaluation module, compatible methods set screening mould
Block and overall merit module；
Original method collection evaluation module, multiple original process evaluation methods for reading user's selection constitute evaluation method
Collection, and first scoring is made to the raw data matrix that technique to be evaluated constructs using each original process evaluation method chosen；
Compatible methods set screening module, it is incompatible for being concentrated using fuzzy cluster analysis calculating method rejecting evaluation method
Original process evaluation method, and obtain compatible methods set；And
Overall merit module, for calculating original technology assessment method commenting for the first time to technique to be evaluated in compatible methods set
The driftance divided, and be that the combination evaluation of each technique to be evaluated is obtained after weighted according to tax weight is carried out with driftance.
Second aspect, the evaluation method of electronic product processing technology combination evaluation system comprising:
A1, the evaluation index for receiving electronic product technique to be evaluated, and electronic product is constructed according to evaluation index
Raw data matrix；
A2, multiple original process evaluation methods composition sets of evaluation methods that user chooses is read, and using each selection
Original process evaluation method makees first scoring to the raw data matrix that technique to be evaluated constructs；
A3, incompatible original process evaluation method is concentrated using fuzzy cluster analysis calculating method rejecting evaluation method, and
Obtain compatible methods set；And
A4, original technology assessment method is calculated in compatible methods set to the driftance to score for the first time of technique to be evaluated, and
It is that the combination evaluation of each technique to be evaluated is obtained after weighted according to tax weight is carried out with driftance.
The invention has the benefit that the evaluation system that this programme provides comprehensively considered machining to resource consumption and
It is influenced caused by environmental hazard, energy is objective, accurately and rapidly evaluates electronic product processing technology；By a variety of original
In evaluation process a variety of compatibility evaluation methods for filtering out to two or more similar electronic product techniques to be processed into
Row overall merit compares, the technique for selecting optimal electronic product to process by comparing result, and adds to improve electronic product
The resource consumption and environment of work process influence to provide decision references.
A variety of original process evaluation methods are based on fuzzy cluster analysis and driftance filters out compatible method and carries out comprehensive comment
Valence enhances the comprehensive of evaluation system；Meanwhile it is 5 big to fully consider time, cost, quality, resource consumption and environmental hazard etc.
Evaluation index and multiple two-level index establish electronic product processing technology optimizing evaluation index system, so that appraisement system
It is more complete comprehensive.
Detailed description of the invention
Fig. 1 is the functional block diagram of one embodiment of electronic product processing technology combination evaluation system.
Fig. 2 is electronic product assessing index of processing system assumption diagram.
Fig. 3 is the evaluation method of electronic product processing technology combination evaluation system.
Specific embodiment
A specific embodiment of the invention is described below, in order to facilitate understanding by those skilled in the art this hair
It is bright, it should be apparent that the present invention is not limited to the ranges of specific embodiment, for those skilled in the art,
As long as various change is in the spirit and scope of the present invention that the attached claims limit and determine, these variations are aobvious and easy
See, all are using the innovation and creation of present inventive concept in the column of protection.
As shown in Figure 1, electronic product processing technology combination evaluation system includes evaluation index building module, makes technique storage
Module and the group technology evaluation module being connect with manufacturing process memory module and evaluation index building module.
The evaluation index in evaluation system that this programme is proposed covers process time T, processing cost C, processing quality
Q, the first class index such as resource consumption R and environmental hazard E, in treating processing technology evaluation procedure, to the decision mesh of process planning
Mark is that expected time T is minimum, and cost C is minimum, and quality Q is best, and consumption resource R is minimum, and environmental hazard E is minimum.It is determined by what is constructed
Plan target and the available group technology evaluation model of decision problem are as follows:
As shown in Fig. 2, wherein two-level index includes the process time T being under the jurisdiction of under process time T1, non-cutting time T2, it is raw
Produce scheduling time T3With other times T4, the cost of raw material C that is under the jurisdiction of under processing cost C1, subsidiary materials cost C2, the energy disappears
Consume cost C3, equipment cost C4With other costs C5, the dimensional accuracy Q that is under the jurisdiction of under processing quality Q1, form accuracy Q2, position essence
Spend Q3With surface quality Q4, the material resource consumption R that is under the jurisdiction of under resource consumption R1With energy consumption R2, and it is under the jurisdiction of ring
Border influences the exhaust emission E under E1, contaminated wastewater E2, noise pollution E3With noxious waste pollution E4。
Manufacturing process memory module, the original process evaluation evaluated for storing a variety of pairs of electronic product processing technologys
Method.Green manufacturing theoretical system and friendly process planning are also stored with inside manufacturing process memory module, while also to technique
The collection of evaluation index and processing method are introduced, and will be seen that and learn the correlation theory of the systems approach by the module
Knowledge.
Wherein, green manufacturing theoretical system part generally comprises the domestic and international present Research of green manufacturing, concept, interior
The knowledge such as culvert, system framework and Key of Implementation technology；The friendly process planning department point includes process planning, in manufacturing process
Resource consumption and environment influence the contents such as situation.
A variety of original process evaluation methods include expert graded, analytic hierarchy process (AHP), Principal Component Analysis, data envelopment point
Analysis method, ideal solution, Gray Correlation, Field Using Fuzzy Comprehensive Assessment, matter-element evaluation assessment, BP neural network method and life cycle are commented
Valence method (LCA) etc..
As shown in Figure 1, group technology evaluation module includes sequentially connected original method collection evaluation module, compatible methods set
Screening module and overall merit module.
Wherein, original method collection evaluation module, multiple original process evaluation methods composition for reading user's selection are commented
Valence method collection, and the raw data matrix that technique to be evaluated constructs is made for the first time using each original process evaluation method chosen
Scoring.
When implementation, the preferred original method collection evaluation module of this programme includes sequentially connected evaluate collection generation module, evaluation
Generation module and standardization module；Evaluate collection generation module, multiple original process evaluation sides for being chosen according to user
Method constitutes sets of evaluation methods；
Generation module is evaluated, what the original process evaluation method for being concentrated using evaluation method constructed technique to be evaluated
Raw data matrix is evaluated, and first scoring is generated；And standardization module, for the first scoring progress to generation
Standardization, the first scoring after obtaining standardization.
Compatible methods set screening module, it is incompatible for being concentrated using fuzzy cluster analysis calculating method rejecting evaluation method
Original process evaluation method, and obtain compatible methods set.
When implementation, the preferred compatible methods set screening module of this programme includes sequentially connected relatedness computation module, searches
Module and rejecting module, the output for rejecting module are connect with overall merit module and relatedness computation module respectively；
Relatedness computation module, for according to the first scoring after standardization, using fuzzy similarity matrix algorithm meter
Calculate the degree of correlation between evaluation method concentration any two original process evaluation method；Searching module, for randomly choosing a threshold value,
And control threshold is successively decreased, until obtaining the phase between an original process evaluation method and other all original process evaluation methods
Guan Du is less than the threshold value after successively decreasing.
Correlation coefficient computing module, for calculating the first scoring and evaluation method of the original process evaluation method obtained
Concentrate the correlation coefficient between the mean value of remaining original process evaluation method to score for the first time；And module is rejected, for sentencing
Whether disconnected correlation coefficient is less than related coefficient dividing value, if being less than, rejects evaluation method and concentrates the original process evaluation obtained
Method, and evaluation method searching module is returned, if more than then using the evaluation method for rejecting the original process evaluation method obtained
Collection is used as compatible methods set.
Overall merit module, for calculating original technology assessment method commenting for the first time to technique to be evaluated in compatible methods set
The driftance divided, and be that the combination evaluation of each technique to be evaluated is obtained after weighted according to tax weight is carried out with driftance.
When implementation, the preferred overall merit module of this programme includes sequentially connected mean value computation module, weight calculation module
With overall merit computing module；Mean value computation module, for calculate in compatible methods set original technology assessment method to it is same to
Evaluate the average value of technique to score for the first time.
Weight calculation module, for calculating the corresponding first scoring of original technology assessment method in compatible methods set and average
The degree of correlation r and driftance 1-r of value calculate compatible method according to driftance later and concentrate corresponding original process evaluation side
The corresponding calculating weight to score for the first time of method；And
Overall merit computing module, for successively by the original technology assessment method in weight and compatible methods set of calculating just
Secondary scoring multiplication is summed again, obtains the combination evaluation of technique to be evaluated.
The evaluation system of this programme further includes data management module, manufacturing process essential factor management module, system administration and side
The friendly process optimization module for helping module and being connect respectively with the ideal scheme determining module and overall merit module.
Wherein, friendly process optimization module is used to search for a variety of production technologies of electronic product, and from resource consumption and ring
Border influences the optimal technique to be evaluated that two aspects determine ideal scheme determining module or overall merit module and analyzes, and
Provide Optimized Measures.
Data management module be mainly used for achievement data collection management, the resource management of object energy, environment pollution emissions management,
The groups such as standard component management, measurement unit management, the specific evaluation index number that the data management module essential record is collected into
Accordingly and realize definition, storage and management to the basic information that may relate to.
Manufacturing process essential factor management module substantially covers process, four major part of machine tool, cutter and cutting fluid, energy
Enough manufacture type, the process unit etc. that are related in manufacture link are defined, storage and management.
System administration and help module mainly to user of service carry out reasonable user management and to system database into
Row increases, deletes, inquiring, modifying；The help module is mainly used for being structurally and operationally illustrated to system, is conducive to
User's operation is quick.
As shown in figure 3, the evaluation method A of electronic product processing technology combination evaluation system includes step A1 to step A4:
In step A1, machine is constructed for receiving the evaluation index of electronic product technique to be evaluated, and according to evaluation index
The raw data matrix of electric product；
A2, multiple original process evaluation methods composition sets of evaluation methods that user chooses is read, and using each selection
Original process evaluation method makees first scoring to the raw data matrix that technique to be evaluated constructs；
When implementation, for the ease of follow-up work, needs to be standardized first scoring, realizes that process is as follows:
Known process program number to be evaluated is n, and method integrates in M evaluation method number as b, then have first evaluation matrix U=
(uij)n×b.If the conclusion vector that jth kind method to be evaluated obtains be it is reverse, then need to make it positive processing:
With u 'ijInstead of original uij, obtained matrix is still denoted as U=(uij)n×b, normalized is made to the matrix:
Obtain a positive normalization first evaluation matrix U ", for convenience, will its be denoted as U=(uij)n×b。
Specific implementation process when making an appraisal below to a variety of original process evaluation methods to technique is illustrated:
About expert graded
Expert graded is also known as Delphi method, by organizing several experts in the field independently to each of assessment indicator system
Achievement data is stated one's views with weight, is finally handled to obtain evaluation result with statistical method.
On the basis of quantifying to data, it is established that the evaluations matrix after standardization is denoted as Y=
(yij)m×n, how Main Analysis expert graded carries out tax power processing to each evaluation index of technical process here.
For evaluations matrix Y=(yij)m×nIn n evaluation index f1, f2..., fn, organize a expert to evaluate, often
A expert is that each evaluation index estimates one group of weight wx1, wx2..., wxn(1≤x≤a) takes average estimation to a group estimation weight
Value:
Calculate the deviation of each estimation weight and mean estimates:
For deviation deltaxjThe estimation weight of biggish j-th of index, need to ask x-th of expert to reevaluate wxj.It is so anti-
It is multiple, until deviation is met the requirements, at this point, the weighted average estimation correction value of one group of process evaluation index can be obtained(1≤j≤n), and then find out evaluation result collection:
About analytic hierarchy process (AHP)
Complicated decision system is carried out stratification processing by analytic hierarchy process (AHP) (AHP), is respectively associated with by bed-by-bed analysis
The significance level of index solves to establish judgment matrix with quantitative calculation method.
AHP is mainly used for determining the weight of each evaluation index, is broadly divided into four steps to carry out:
1) it establishes hierarchy Model: difference is divided into according to the evaluation index that assessment indicator system is included from top to bottom
The index system of green manufacturing technical process is divided into four layers by level, and top is destination layer, and lowermost layer is specific green
Process program layer, with specific reference to Fig. 2.
2) Judgement Matricies: when judgment matrix is indicated relative to upper layer evaluation index, between this layer of each evaluation index
Relative importance；If A layers of evaluation index AkWith the evaluation index B in next layer of B1, B2..., BnIt is related, then can constructs and sentence
Disconnected matrix:
Wherein, bijFor relative to AkWhen, BiTo BjRelative importance, value indicates with 0.1~0.99 scaling law.
3) maximum eigenvalue and character pair vector of judgment matrix, normalizing Mode of Level Simple Sequence and consistency check: are solved
Mode of Level Simple Sequence weight vectors are obtained after change processing.It also needs to make consistency check to single sequence later:
1. seeking coincident indicator:
Wherein, m indicates judgment matrix dimension, and λ max is maximum eigenvalue；
2. table look-up 2 Aver-age Random Consistency Index RI；
2 Aver-age Random Consistency Index of table
3. calculating consistency ratio CR=CI/RI receives judgment matrix as CR≤0.1, it is believed that it has satisfied one
Cause property；Otherwise judgment matrix is modified, until meeting consistency criterion.
(4) total hierarchial sorting and consistency check.Total hierarchial sorting successively carries out from top to bottom: setting factor AkLevel it is total
Sequencing weight is ak, lower layer factors B is obtained in Mode of Level Simple SequencejOpposite AkWeight bjkIf (the two is unrelated, is covered with 0
Go) after, to BjSeek Σ ak·bjk, then B layers of factor B are obtainedjTotal hierarchial sorting weight bj.If the consistency of single sequence before
It upchecks, then the consistency always to sort there will not be too large deviation, therefore can generally ignore total sequence consistency check.
By the analysis of above four step and operation, the weight vectors of friendly process evaluation index layer can have been obtained.
About DEA Method
DEA Method (DEA) is a kind of more output analysis methods of more investments based on relative efficiency.This method
For the green convenient for evaluating electronic product processing technology, resource consumption (raw materials consumption, auxiliary material consumption, energy are only discussed
Source resource consumption) and environment influence (contaminated wastewater, exhaust emission, noise pollution, noxious waste pollution) to processing technology
It influences.Its appraisement system is made of numerous decision packages (DMU), by analyzing each DMU input and output ratio, is counted
The weight variable for calculating each evaluation index determines its validity, and carries out comprehensive analysis to entire appraisement system.
Equipped with n DMU (i.e. n kind process program), each DMU has the input of m kind to export with s kind, each input weight difference
For v1, v2..., vm, each weight that exports is respectively u1, u2..., us；DMUjInput vector be Xj=(x1j, x2j..., xmj)T, defeated
Outgoing vector is Yj=(y1j, y2j..., ysj)T.Input and Output Indexes system as shown in table 3 can then be constructed.
3 input/output list of table
Wherein, 1-n is n process program；x1,…,xmFor m input pointer；y1,…,ysFor s output-index.
xij> 0 indicates j-th of process program to i-th of input pointer xiInput amount, j=1 ..., n, i=1 ..., m；
yrj> 0 indicates j-th of process program to r-th of output-index yrQuantum of output, j=1 ..., n, r=1 ..., s；
viIndicate i-th of input pointer x of inputiA kind of measurement (weight), i=1 ..., m；
urIndicate r-th of output-index y of inputrA kind of measurement (weight), r=1 ..., s.
DEA is from input and output angle analysis, it is desirable to input that as small as possible, output is as big as possible.And electronic product is processed
Process analysis shows that output end is other than qualified products, there are many more pollutant, these environmental index are all reverse indexs, are shown
The output requirement of DEA is not met so.It, can be by the entire based on the reverse of resource environment characteristic of foundation in order to solve this contradiction
Index system is all used as input pointer to handle；Extention effectiveness type index is to output end again, such as material utilization, energy benefit
With rate, product qualification rate, devil liquor recovery rate etc., these positive indexs all can by the member of former reverse index system by transformation and
It is calculated.It then, can be with the following method to 0 process program DMU of jthj0It solves:
Wherein, xij0It is 0 process program of jth to i-th of input pointer xiInput amount, i=1 ..., m；
ykj0It is 0 process program of jth to k-th of output-index ykQuantum of output, k=1 ..., s；
viTo input i-th of input pointer xiA kind of measurement (weight), i=1 ..., m；
ukIndicate k-th of output-index y of inputkA kind of measurement (weight), k=1 ..., s.
Above formula is a fractional programming, to introduce Charnes-Cooper transformation, enabling t=1/ (v convenient for calculatingTxj0), w
=tv, μ=tu then obtain linear programming:
According to duality theory, dual variable λ is enabled1, λ2..., λnThe preceding n constraint equation of linear programming (P) is respectively corresponded,
Corresponding (n+1)th constraint equation of another dual variable θ, and introduce slack variable S-And S+, then obtain dual program:
This is the effective CCR model of investment, and θ indicates investment reduction ratio, optimal solution *.If θ*=1 and S+*=S-*=
0, then claim DMUj0It is effective for DEA；If θ*=1, S+*、S-*Non-zero then claims DMUj0It is weak effectively for DEA；If θ*< 1, then claim DMUj0For
DEA is invalid, and expression can be with than process program DMUj0Smaller depletion of resources and environmental degradation obtains same output.
About improved ideal point method
The TOPSIS that this method is analyzed is to have made certain improved method on the basis of traditional TOPSIS.TOPSIS needs
Index is forward direction, therefore, to established normalized matrix Y=(yij)m×nMake positive standardization, be denoted as Y '=
(y′ij)m×n；Weight vectors W=(the w of index1, w2..., wn)T, then weighting standard matrix can be obtained.
V=(vij)m×n=(wjy′ij)m×n
Wherein, V is weighting standard matrix；vijFor the normalized matrix of i-th of evaluation index of j-th of process program
Value.
Ideal solution V*It may be expressed as:
Wherein, V*For ideal solution vector；For i-th of evaluation index of schemes all in normalized matrix
Maximum value.
To obtain each process program to ideal solution distance:
Wherein, wjFor the weighted value of each index；vi *For ideal solution value.
In order to find out weight wj, construct optimal model:
To the model solution, the weight vectors of index are obtained:
Wherein,For the maximum value of i-th of evaluation index of schemes all in normalized matrix；y′ijFor mark
The normalized matrix value of standardization treated the i-th row j column.
By the result of the weight vector computation formula of index bring into each process program to ideal solution distance calculation formula, i.e.,
Process program i to ideal solution distance di。diSmaller, the process program is more excellent, can thus be ranked up to each process program.
About Gray Correlation
Gray Correlation judges its pass according to the similarity degree between each characteristic parameter sequence curve of sample to be evaluated
Connection degree size.When carrying out green manufacturing process evaluation using Gray Correlation, first have to choose from technique to be evaluated
One reference sequences, i.e. ideal technology scheme, the program represent the optimal level of each Environmental Resource Assessment index.For built
Vertical standardization evaluations matrix Y=(yij)m×n, make reference sequences:
Since all evaluation indexes of the evaluations matrix are all reverse, therefore y0jThe minimum value for taking matrix jth to arrange.
Then, for i-th of process program, with incidence coefficient ε of the reference sequences at j-th of evaluation indexijIt can table
It is shown as:
Wherein, ρ ∈ [0,1] be resolution ratio, value is smaller, and the difference between each incidence coefficient is more significant, generally take ρ=
0.5。
Finally, each index comprehensive of process program i is had:
riThat is i-th of process program and reference sequences (ideal technology scheme) Y0The degree of association.According to riValue is to each technique side
Case sequence, riBigger, the process program is more excellent.
About Field Using Fuzzy Comprehensive Assessment
Field Using Fuzzy Comprehensive Assessment is a kind of integrated evaluating method based on fuzzy mathematics.The comprehensive evaluation can be according to each
The feature of class factor of evaluation determines the functional relation (that is: subordinating degree function) between evaluation of estimate and factor of evaluation value, according to fuzzy
Qualitative evaluation is converted into quantitative assessment by the topology degree that is subordinate to of mathematics, i.e., with fuzzy mathematics to the things restricted by many factors
Or object makes the evaluation of a totality.It has result clear, and the strong feature of systematicness, it is fuzzy, difficult preferably to solve
With the electronic product processing technology evaluation problem of quantization.Its algorithm steps:
1) evaluation indice and weight vectors are determined
If the factor of evaluation of processing technology there are n, it is denoted as U={ u1,…,un, referred to as set of factors.By various factors institute
Locate the difference of status and effect, considers to use weight vectors A={ a1,…,amLai Hengliang.
2) Comment gathers are determined
If all processing technology evaluation comments being likely to occur there are m, it is denoted as V={ v1,…,vm, referred to as Comment gathers.
3) jdgement matrix is established
(judging panel's marking or subordinating degree function) is evaluated to each factor, scoring is converted into evaluations matrix, thus
To jdgement matrix R.
4) fuzzy comprehensive evoluation
Overall merit B=AR is calculated based on suitable Fuzzy Arithmetic Operators, generally B is normalized, further according to
Maximum membership grade principle judges, and can make fuzzy overall evaluation to electronic product processing technology.
About matter-element evaluation assessment
Matter-element evaluation assessment application extension theory establishes Cnc ReliabilityintelligeNetwork Network evaluation matter-element model, in conjunction with weight calculation side
The concept that method determines the weight of each index, and quotes correlation function obtains each processing technology opinion rating, so as to more objective
Evaluation electronic product processing technology.
(1) electronic product processing technology opinion rating matter-element model is determined
The evaluation of electronic product processing technology is divided into m grade, wherein evaluation index has n, thus establish matter-element model:
In formula: NiFor i-th of opinion rating of electronic product processing technology；cnFor opinion rating NiTechnology assessment index；νinFor
I-th of opinion rating corresponds to the magnitude range of evaluation index.
(2) Classical field of matter-element model is determined
In formula: νinCorrespond to the magnitude range of evaluation index, i.e., < a for i-th of opinion ratingin,bin>。
(3) the section domain of matter-element model is determined
Save domain RpRefer to each evaluation index in the codomain of whole grades:
In formula: VpCorrespond to the magnitude range of evaluation index, i.e., < a for i-th of opinion ratingpn,bpn>。
(4) matter-element to be evaluated is determined
It treats and comments process program, the specific value for each evaluation index that analytical calculation obtains is indicated with matter-element are as follows:
In formula: νnIt should be in the magnitude of evaluation index, the i.e. evaluation index of electronic product processing technology for process program to be evaluated
Value.
(5) degree of association of electronic product processing technology opinion rating to be evaluated is calculated
If electronic product processing technology opinion rating to be evaluated is about evaluation index CnDistance be ρ (xi,xji), processing technology
With NpAbout evaluation index CnAway from for ρ (xi,xpi), then the evaluation index C of electronic product processing technology to be evaluatednAbout j-th etc.
The correlation function of grade are as follows:
In formula:
Evaluation index C is determined by weighing computation methodnWeight wi, then the evaluation index C of processing technology to be evaluatednAbout
The degree of association of j-th of grade is
The opinion rating of each processing method is finally known by maximum membership grade principle (degree of association maximal criterion).
In step A3, evaluation method is rejected using fuzzy cluster analysis calculating method, incompatible original process is concentrated to evaluate
Method, and obtain compatible methods set；When implementation, this programme preferred steps A3 further comprises:
In step A31, according to the first scoring after standardization, using fuzzy similarity matrix algorithm Calculation Estimation side
Method concentrates the degree of correlation between any two original process evaluation method；Step A31's the specific implementation process is as follows:
First evaluation matrix U=(u after standardizationij)n×bOn the basis of, make fuzzy similarity matrix:
Wherein, rijIt can be indicated with Cosin method are as follows:
Wherein, rijFor i-th kind of evaluation method conclusion vector u in MiWith jth kind evaluation method conclusion vector uj
Between the degree of correlation.
In step A32, a threshold value is randomly choosed, and control threshold is successively decreased, until obtaining an original process evaluation side
The degree of correlation between method and other all original process evaluation methods is less than the threshold value after successively decreasing；The specific implementation of step A32
Journey is as follows:
For any given threshold value λ ∈ (0,1], enable:
Then lower triangular matrix R can turn to the Boolean matrix of only 0 and 1 composition, enable λ successively decrease since 1, there is always λ=λ0,
Factor in R can be made to become following situation:
At this point, indicating in threshold value λ0Under, the conclusion vector u of kth kind original process evaluation methodkIndividually it is attributed to one kind, removes it
Other outer b-1 kind evaluation methods are attributable to another kind of.
In step A33, remaining original is concentrated in the first scoring and evaluation method for calculating the original process evaluation method of acquisition
Correlation coefficient between the mean value of beginning technology assessment method to score for the first time:
Acquire the average vector of this b-1 kind original process evaluation method conclusion respectively according to the following formulaAnd ukWithCorrelation
Coefficient rk:
Wherein,
Table look-up to obtain r under certain significancekDividing value ra.Table 3 is listed is not in sample (process program to be evaluated) number
Coefficient of part correlation significance test table in the case where many.
3 test of significance of coefficient of correlation table of table
In step A34, judge whether correlation coefficient is less than related coefficient dividing value, if being less than, rejects evaluation method
The original process evaluation method obtained, and return step A22 are concentrated, if more than then using the original process evaluation for rejecting acquisition
The sets of evaluation methods of method is as compatible methods set.
In step A4, the drift for the first time scored of the original technology assessment method to technique to be evaluated in compatible methods set is calculated
Shifting degree, and be that the combination evaluation of each technique to be evaluated is obtained after weighted according to tax weight is carried out with driftance.
When implementation, this programme preferred steps A4 further comprises:
A41, calculate compatible methods set in original technology assessment method to same technique to be evaluated score for the first time be averaged
Value；
A42, the degree of correlation r for calculating the corresponding first scoring of original technology assessment method in compatible methods set and average value and
Driftance 1-r calculates compatible method according to driftance later and concentrates corresponding original process evaluation method corresponding first
The calculating weight of scoring；And
A43, calculating weight is multiplied with the first scoring of technology assessment method original in compatible methods set successively and is summed again,
Obtain the combination evaluation of technique to be evaluated.
Step A41 is as follows to step A43 circular:
For compatible methods set M1In b1Kind original process evaluation method, seeks its average knot to the n kind evaluation of process program
By vectorAnd seek each evaluation method coefficient r associated therewithi, then obtain each method driftance pi=1-ri, and then by following formula
Respectively obtain the weight w of each evaluation methodiWith the weighted average U of each technology assessment conclusion to be evaluatedj。
The weight of i-th kind of method may be expressed as:
Then for j-th of object in technique to be evaluated, there is combination evaluation conclusion:
It sorts from high to low to the combination evaluation conclusion of each technique to be evaluated, it is determined that go out the superiority and inferiority of these techniques to be evaluated
Sequentially, and for subsequent process planning decision valuable reference is provided.
Claims (8)
1. electronic product processing technology combination evaluation system, which is characterized in that deposited including evaluation index building module, manufacturing process
Storage module and the group technology evaluation module being connect with manufacturing process memory module and evaluation index building module；
Evaluation index constructs module, constructs for receiving the evaluation index of electronic product technique to be evaluated, and according to evaluation index
The raw data matrix of electronic product；
The evaluation index includes multiple first class index, and each first class index includes multiple two-level index, the first class index packet
Including processing quality, process time, processing cost, resource consumption and environment influences；
Manufacturing process memory module, the original process evaluation side evaluated for storing a variety of pairs of electronic product processing technologys
Method；
The group technology evaluation module include sequentially connected original method collection evaluation module, compatible methods set screening module and
Overall merit module；
Original method collection evaluation module, multiple original process evaluation methods for reading user's selection constitute sets of evaluation methods,
And first scoring is made to the raw data matrix that technique to be evaluated constructs using each original process evaluation method chosen；
Compatible methods set screening module, for using fuzzy cluster analysis calculating method reject evaluation method concentrate it is incompatible original
Technology assessment method, and obtain compatible methods set；And
Overall merit module, for calculating the scoring for the first time to technique to be evaluated of original technology assessment method in compatible methods set
Driftance, and be that the combination evaluation of each technique to be evaluated is obtained after weighted according to tax weight is carried out with driftance.
2. electronic product processing technology combination evaluation system according to claim 1, which is characterized in that further include with it is described
The friendly process optimization module of overall merit module connection；
The friendly process optimization module, for searching for a variety of production technologies of electronic product, and from resource consumption and environment shadow
It rings the optimal technique to be evaluated that two aspects determine ideal scheme determining module or overall merit module to analyze, and provides
Optimized Measures.
3. electronic product processing technology combination evaluation system according to claim 2, which is characterized in that the original method
Collection evaluation module includes sequentially connected evaluate collection generation module, evaluation generation module and standardization module；
Evaluate collection generation module, multiple original process evaluation methods for being chosen according to user constitute sets of evaluation methods；
Generation module is evaluated, the original process evaluation method for concentrating using evaluation method constructs technique to be evaluated original
Data matrix is evaluated, and first scoring is generated；And
Standardization module, it is first after obtaining standardization for being standardized to the first scoring of generation
Scoring.
4. electronic product processing technology combination evaluation system according to claim 3, which is characterized in that the compatible method
Collection screening module includes sequentially connected relatedness computation module, searching module and rejecting module, the output for rejecting module
It is connect respectively with overall merit module and relatedness computation module；
Relatedness computation module, for being commented using the calculating of fuzzy similarity matrix algorithm according to the first scoring after standardization
Valence method concentrates the degree of correlation between any two original process evaluation method；
Searching module, for randomly choosing a threshold value, and control threshold is successively decreased, until obtain an original process evaluation method with
The degree of correlation between other all original process evaluation methods is less than the threshold value after successively decreasing；
Correlation coefficient computing module, the first scoring for calculating the original process evaluation method obtained are concentrated with evaluation method
Correlation coefficient between the mean value of remaining original process evaluation method to score for the first time；And
Module is rejected, for judging whether correlation coefficient is less than related coefficient dividing value, if being less than, rejects evaluation method concentration
The original process evaluation method of acquisition, and evaluation method searching module is returned, if more than then using the original process for rejecting acquisition
The sets of evaluation methods of evaluation method is as compatible methods set.
5. electronic product processing technology combination evaluation system according to claim 4, which is characterized in that the overall merit
Module includes sequentially connected mean value computation module, weight calculation module and overall merit computing module；
Mean value computation module, for calculating original technology assessment method commenting for the first time to same technique to be evaluated in compatible methods set
The average value divided；
Weight calculation module, for calculating the corresponding first scoring of original technology assessment method in compatible methods set and average value
Degree of correlation r and driftance 1-r calculates compatible method according to driftance later and concentrates corresponding original process evaluation method pair
The calculating weight to score for the first time answered；And
Overall merit computing module is commented for will successively calculate weight with the first of technology assessment method original in compatible methods set
Split-phase multiplies sums again, obtains the combination evaluation of technique to be evaluated.
6. a kind of evaluation method using any electronic product processing technology combination evaluation system of claim 1-5,
It is characterized in that, comprising:
A1, the evaluation index for receiving electronic product technique to be evaluated, and the original of electronic product is constructed according to evaluation index
Data matrix；
A2, multiple original process evaluation methods composition sets of evaluation methods that user chooses is read, and using the original of each selection
Technology assessment method makees first scoring to the raw data matrix that technique to be evaluated constructs；
A3, incompatible original process evaluation method is concentrated using fuzzy cluster analysis calculating method rejecting evaluation method, and obtained
Compatible methods set；And
A4, original technology assessment method is calculated in compatible methods set to the driftance to score for the first time of technique to be evaluated, and with drift
Shifting degree is that the combination evaluation of each technique to be evaluated is obtained after weighted according to tax weight is carried out.
7. evaluation method according to claim 6, which is characterized in that step A3 further comprises:
A31, according to the first scoring after standardization, concentrate any two using fuzzy similarity matrix algorithm Calculation Estimation method
The degree of correlation between a original process evaluation method；
A32, one threshold value of random selection, and control threshold is successively decreased, until it is all with other to obtain an original process evaluation method
The degree of correlation between original process evaluation method is less than the threshold value after successively decreasing；
A33, first scoring and the evaluation method for calculating the original process evaluation method obtained concentrate remaining original process evaluation side
Correlation coefficient between the mean value of method to score for the first time；And
A34, judge whether correlation coefficient is less than related coefficient dividing value, if being less than, reject evaluation method and concentrate the original obtained
Beginning technology assessment method, and return step A32, if more than then using the evaluation side for rejecting the original process evaluation method obtained
Method collection is as compatible methods set.
8. evaluation method according to claim 6, which is characterized in that step A4 further comprises:
The average value that for the first time scores of the original technology assessment method to same technique to be evaluated in A41, calculating compatible methods set；
A42, degree of correlation r and drift of the corresponding first scoring of original technology assessment method in compatible methods set with average value are calculated
1-r is spent, compatible method is calculated according to driftance later and concentrates the corresponding first scoring of corresponding original process evaluation method
Calculating weight；And
A43, calculating weight is multiplied with the first scoring of technology assessment method original in compatible methods set successively and is summed again, obtained
The combination evaluation of technique to be evaluated.
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