CN101064028A - Products innovating design system based on QFD and TRIZ - Google Patents

Abstract

This invention relates to one product innovation design system based on QFD and TRIZ, which comprises the following parts: quality match module to convert the customer needs on product into design need to get customer maximum satisfaction; invention resolution theory module to provide detail method for design method; quality chamber structure to reflect the customer need into technique actions to realize quality property improvement and to embody the parts design combined with quality property and parts quality chamber analysis to determine needed parts for technique innovation.

Description

Products innovating design system based on QFD, TRIZ

(1) technical field

The present invention relates to a kind of products innovating design system based on QFD, TRIZ, wherein: quality function configuration (QFD) can be converted into designing requirement to customer demand, makes product obtain client's maximum satisfaction; Inventive problem solves theoretical (TRIZ) can provide the concrete grammar that solves the product design problem to the deviser.

(2) background technology

The market competitiveness of enterprise is decided by the level of product, and the level key of product is design.So the quality of design effort is directly connected to quality, performance, lead time and the economic benefit of product, even is related to development and national economy.Fierce day by day under the new situation in current science and technology competition, in order to win the market, enterprise just must be market-oriented, takes the lead in releasing function with the fastest speed and meet the demands, and has good quality, reasonable price, service is improved and the product of compliance with environmental protection requirements.Even product has optimum TQCSE (Time, Quality, Cost, Serve, Environment) index.Therefore, the employing of advanced design method and instrument has crucial effects to the product development of enterprise and even the competitiveness of enterprise.

QFD (quality function configuration) a kind ofly is converted into quality requirements to customer demand, determines the quality of product design thus, and systematically is configured to the multi-level deductive method of each link and process element.As one of internationally famous product design theory, QFD obtains the extensive approval of academia and industry member, and has obtained successful enforcement and utilization in some famous international large enterprises.Bibliographical information according to industrially-advanced country such as Japan-US ^[2～4],, use the QFD method and not only can improve the quality of products, guarantee once success of product development, and can make product development cycle shorten 1/3, cost reduces 1/2, and performance is fairly obvious.The ISO9000 international standard is lay special stress on " is focus with client " also, and QFD analyzes customer demand just, and makes it the most effective instrument with the Products Development close association.Therefore, the QFD technology is subjected to countries in the world and payes attention to, and has obtained widespread use.QFD need not be that necessary condition obtains competitive product with high investment, the high automation technology of enterprise, can allow enterprise needn't increase dynamics of investment product quality is improved grade.Therefore the present situation that meets Chinese Enterprise is that Chinese Enterprise realizes the quality development, wins the ideal tools of competitive edge.Further exploitation and promote the quality function configuration software that tallies with the national condition, and solve at the problem of its existence, positive engineering and realistic meaning had.

TRIZ (inventive problem solves theoretical) is the science about system innovation, it is by physics and this two classes conflict of technology in the definition Machine Design, and creatively solve this two kinds of conflicts, rather than trade off by traditional technology and to realize technological innovation by collison matrix and innovative principle.The starting point of TRIZ is that the process that conflict is found also is to finish by the qualitative description to problem by means of the conflict in the empirical discovery design.It has solved the new problem in the thousands of product development in many national large enterprises, become the strong methodology of technical solution problem.

QFD can be defined as meeting consumers' demand and will " what be done ", but can not solve " how doing ".TRIZ provides the instrument of a series of problems of overcoming a difficulty, but the designer needs by virtue of experience to determine " what is done ".Both are organically combined to solve the problem of " what being done " in the design process and reach " how doing ".Such research has become a focus of TRIZ research.

The develop rapidly of computing machine has produced tremendous influence to the design of product, and area of computer aided QFD or TRIZ have become objective requirement and the effective means that enterprise uses these two kinds of instruments.But in product design process, utilize the computer subsidiary product innovation aspect not form the tool software of a cover comparative maturity as yet at present.

(3) summary of the invention

In order to overcome the existing products creative design system not in conjunction with the deficiency of QFD and TRIZ, poor practicability, the invention provides and a kind of QFD and TRIZ are organically combined, be suitable for the products innovating design system based on QFD, TRIZ of practical application.

The technical solution adopted for the present invention to solve the technical problems is:

A kind of products innovating design system based on QFD, TRIZ comprises the quality configuration module, is used for client is converted into designing requirement to the demand of product, makes product obtain client's maximum satisfaction; Inventive problem solves theoretical module, is used to provide the concrete grammar that solves the product design problem; Described quality configuration module comprises: customer demand importance degree assessment unit, be used to analyze market, and collect customer requirement, collect the information of other enterprise's like product, and induction-arrangement, comprehensively go out client's important need, and the importance degree weighting is carried out in user's request; The technical measures determining unit is used for according to customer demand, and the method for utilizing technical characteristic to decompose is determined the technical measures of corresponding customer demand; The relational matrix determining unit is used to utilize the product design evaluation method, and the relation between customer demand and the technical measures is estimated, and estimates the importance degree of various technical measures; The correlation matrix determining unit is used to determine the relation of influencing each other between every technical measures; Market competitiveness assessment unit is used for from customer demand, analyzes the competitive power of like product in market, assesses out respectively for each customer demand, carries out comprehensive back and obtains competitiveness of product in market index; The technological competitiveness assessment unit is used for determining the technical merit of every engineering measure, and various technological competitiveness are carried out the technological competitiveness that comprehensive back obtains product; Gordian technique measure, technical bottleneck determining unit are used for finding the gordian technique measure according to the big I of technical measures importance degree, and the technical measures that importance degree is big are the gordian technique measure; According to the relation of influencing each other in the correlation matrix, the technical measures of choosing strong negative correlation are the bottleneck technology; Described inventive problem solves theoretical module and comprises: collison matrix is set up the unit, be used for the technical contradiction of actual engineering design is converted into 39 general engineering parameters, 39 parameters are respectively as improving parameter and deterioration parameter, with them as row and column, form 39 * 39 collison matrix, form the sequence number of the every pair of inventive principle commonly used of conflicting in the ranks point of crossing; Inventive principle knowledge base unit is used to set up 40 abstract inventive principle, and to every principle number consecutively; Inventive problem solves the unit, be used for technical measures according to two strong negative correlation of bottleneck technology, that chooses corresponding technical measures improves parameter and deterioration parameter, and determines the inventive principle sequence number that adopts need find inventive principle according to inventive principle from knowledge base in collison matrix.

Further, in described customer demand importance degree assessment unit, customer demand importance degree K _iTake off 5 grades of row, i=1,2 ..., m:

1: expression does not influence the demand that function realizes;

2: expression does not influence the demand that major function realizes;

3: represent that heavier strategic point influences the demand that function realizes;

4: expression importantly influences the demand that function realizes;

5: represent basic, relate to demand safe, particular importance.

Relationship degree r _Ij

Further again, in the relational matrix determining unit, adopt the relationship degree grade of 1,3,5,7,9 forms:

1: represent to have faint relation between pairing engineering measure of this intersection point and the customer demand;

3: represent to exist between pairing engineering measure of this intersection point and the customer demand more weak relation;

5: represent to have general relation between pairing engineering measure of this intersection point and the customer demand;

7: represent to have confidential relation between pairing engineering measure of this intersection point and the customer demand;

9: represent to have very confidential relation between pairing engineering measure of this intersection point and the customer demand;

0: there is not relation in expression.

And the computing formula of the importance degree of engineering measure is (1) after the weighting:

$h_j=\underset{i=1}{\overset{m}{\mathrm{\Σ}}}{K}_i{r}_{\mathrm{ij}}---\left(1\right)$

h _jBe importance degree, represent in close relations between engineering measure of j item and the multinomial customer demand.

Further, in described correlation matrix determining unit, degree of correlation t _IjWith the following symbolic representation degree of correlation:

Zero (positive correlation): represent to exist mutually between pairing two engineering measures of this intersection point and strengthen, mutually the reciprocation of stack;

◎ (strong positive correlation): the reciprocation of representing to exist between pairing two engineering measures of this intersection point very strong mutual stack;

* (negative correlation): represent to exist between pairing two engineering measures of this intersection point and weaken the effect of cancelling each other mutually;

# (strong negative correlation): the effect between pairing two engineering measures of this intersection point of representing is repelled strongly, and very big contradiction is arranged;

Blank: as to represent not have reciprocation between pairing two engineering measures of this intersection point.

In described market competitiveness assessment unit, market competitiveness M _i, i=1,2 ..., m, take off 5 grades of row:

1: represent that uncontested ability can say product overloading, sales resistance;

2: the expression competitiveness is low, and market share is successively decreased;

3: expression can come into the market, but does not have advantage;

4: be illustrated in the home market competition and have advantage;

5: be illustrated in the home market competition and have greater advantage, can participate in competition in the international market, occupy certain international market share;

To market competitiveness M _iAfter carrying out comprehensively, obtain competitiveness of product in market index M, computing formula following (2):

$M=\underset{i=1}{\overset{m}{\mathrm{\Σ}}}{K}_i{M}_i/5\underset{i=1}{\overset{m}{\mathrm{\Σ}}}{K}_i---\left(2\right)$

M represents market competitiveness index.

In described technological competitiveness assessment unit, T _jThe technical merit of representing the engineering measure of j item, j=1,2 ..., n, it comprises the level of index itself, the design level of this enterprise, technological level, manufacture level, test water equality are taken off 5 grades of row:

1: the presentation technology level is low;

2: the presentation technology level is general;

3: the presentation technology level reaches the industry advanced level;

4: the presentation technology level reaches advanced international level;

5: the presentation technology level reaches international most advanced level;

To technological competitiveness T _jAfter carrying out comprehensively, obtain the technological competitiveness index T of product, computing formula following (3):

$T=\underset{j=1}{\overset{n}{\mathrm{\Σ}}}{h}_j{T}_j/5\underset{j=1}{\overset{n}{\mathrm{\Σ}}}{h}_j---\left(3\right)$

T presentation technology competitiveness index.

In the relational matrix determining unit, set up the reasoning from logic rule, not directly perceived as the relationship degree between customer demand and the technical measures, according to the relationship degree between then definite customer demand of reasoning from logic state and the technical measures.

Solve in the unit at described inventive problem, existing case is stored, make the user check that forefathers' conflict solves case.

The basis that the present invention sets up is Planning Model for House of Quality (HOQ), and it is the core of QFD, is that first of QFD also is the most important stage.By the Planning Model for House of Quality structure, customer demand is reflected to taking of technical measures, and then realizes the improvement of mass property, and embody in parts design; The parts that need carry out technological innovation are determined in the Planning Model for House of Quality analysis of bond quality characteristic and parts.The technical tool of TRIZ will be analyzed the parts that needs carry out technological innovation, and the contradiction that solves in the parts design process also forms corresponding solution.The TRIZ knowledge base is used to the TRIZ module that inventive principle inquiry and case reference are provided.Concrete scheme of the present invention is as follows:

1.QFD module

A complete Planning Model for House of Quality almost comprises the structural element that all other Planning Model for House of Quality may relate to.Medium and small sized enterprises particularly want to comprise all these structural elements and are very difficulty and also are unnecessary yet in actual applications.Therefore, have more practicality and operability for making Planning Model for House of Quality, native system adopts the Planning Model for House of Quality model of a simplification, and the quantitative estimation method of its component, constitution step and each parameter value is as follows:

1.1 being explained as follows in detail of each component of Planning Model for House of Quality of simplifying:

(1) customer demand: be the client that obtains by market survey and customer survey demand information, comprehensively by analysis become representative customer demand to product.This is the starting point of QFD, and the configuration target of Planning Model for House of Quality is exactly to satisfy all clients' demand to greatest extent, therefore will pay attention to obtaining and analyzing of customer demand information.

(2) technical measures: the technical measures of taking in order to satisfy customer demand (designing requirement or mass property), to guarantee the realization of customer demand.

(3) relational matrix: refer to the close relation between customer demand and the technical measures, as strong, weak, irrelevant etc.

(4) index of technical measures and importance degree thereof: importance degree and the desired value of determining technical measures.

(5) correlation matrix: refer to the mutual relationship between every technical measures, comprise positive correlation, uncorrelated and negative correlation.Degree of correlation also can further be subdivided into strong correlation, generally relevant with weak relevant.

(6) market competitiveness evaluating matrix: refer to the competitiveness assessment values of institute's development product at every market customer demand.

(7) technology competition capability evaluation: the technology and the cost evaluating data that refer to every technical measures.

1.2 the constitution step of this Planning Model for House of Quality mainly contains:

(1) determine customer demand: this is a step of most critical, at first analyzes market, collects customer requirement, the information of collecting other enterprise's like product, and induction-arrangement comprehensively goes out client's important need then, and the importance degree weighting is carried out in user's request.

(2) determine technical measures: according to customer demand, the method for utilizing technical characteristic to decompose is determined.

(3) determine relational matrix: utilize the product design evaluation method, the relation between customer demand and the technical measures is estimated, estimate the importance degree of continuous item, for the desired value of technical measures provides foundation.

(4) carry out market competitiveness analysis: from customer demand, analyze the competitive power of like product in market, assess out for each customer demand the status of this enterprise in market competition respectively.

(5) determine correlation matrix: determine the relation of influencing each other (being correlated with) between every technical measures, comprise positive influence, do not influence and negative influence, degree of correlation can further be subdivided into some grades.

(6) determine the technical measures index: according to the ability of self, assess out this enterprise the technical indicator that should reach.This index can reach fully, also can partly reach, so desired value is also divided some grades.

(7) determine gordian technique measure, technical bottleneck: after Planning Model for House of Quality is carried out comprehensive assessment, determine gordian technique measure and technical bottleneck again.Big I according to the technical measures importance degree finds gordian technique measure (technical measures that importance degree is big are the gordian technique measure), as control emphasis.And according to engineering experience, the technical measures importance degree that has is not necessarily high, but technology realizes that difficulty is bigger, and these type of technical measures are the bottleneck technology, tackles this and carries out the emphasis tackling key problem.

1.3 quantitative estimation method

In the Planning Model for House of Quality to each numerical value such as importance degree, relationship degree and competitiveness determine very importantly, be directly connected to the effect of QFD.The weighted scoring criterion is a kind of method of easy, directly perceived, easy row.This paper adopts this conventional quantitative estimation method of weighted scoring criterion exactly.In order to narrate conveniently, existing is each relevant components element quantification symbolic representation in the Planning Model for House of Quality as shown in table 1.

Engineering measure	t 11	...	t 1n
								t ij	
	t n1	...	T nn
							Engineering measure			The important K of client i		Market competitiveness M i
	Customer demand	r 11	...	r 1n	K 1								M 1
							r ij				
		r m1	...	r mn	K m							M m
							Engineering measure importance degree h j		h 1	...	h n
	Technological competitiveness T j		T 1	...	T n
						Synthesized competitiveness			C

The Planning Model for House of Quality that table 1 quantification symbol is represented

During the structure Planning Model for House of Quality, need be to the importance degree K of customer demand _iAssess, determine the relationship degree r between engineering measure and the customer demand _Ij, the assessment engineering measure degree of correlation between any two is weighted scoring to determine the importance degree h of engineering measure _j, the competitiveness of product in market and technological competitiveness are assessed, and are calculated synthesized competitiveness.

1.3.1 customer demand importance degree assessment

Customer demand importance degree K _i(i=1,2 ..., m) desirable following 5 grades:

1: expression does not influence the demand that function realizes;

2: expression does not influence the demand that major function realizes;

3: represent that heavier strategic point influences the demand that function realizes;

4: expression importantly influences the demand that function realizes;

5: represent basic, relate to demand safe, particular importance.

1.3.2 relational matrix and correlation matrix assessment

(1) relational matrix: relationship degree r _Ij

The relationship degree grade of 1,3,5,7,9 forms of employing:

1: represent to have faint relation between pairing engineering measure of this intersection point and the customer demand;

3: represent to exist between pairing engineering measure of this intersection point and the customer demand more weak relation;

5: represent to have general relation between pairing engineering measure of this intersection point and the customer demand;

7: represent to have confidential relation between pairing engineering measure of this intersection point and the customer demand;

9: represent to have very confidential relation between pairing engineering measure of this intersection point and the customer demand;

0: there is not relation in expression.

The computing formula of the importance degree of engineering measure is (1) after the weighting:

$h_j=\underset{i=1}{\overset{m}{\mathrm{\Σ}}}{K}_i{r}_{\mathrm{ij}}---\left(1\right)$

If h _jValue big, represent in close relations between engineering measure of j item and the multinomial customer demand and

These customer demands are more important, thereby this engineering measure is just more important, just as the gordian technique measure,

As control emphasis.

(2) correlation matrix: degree of correlation t _Ij

With the following symbolic representation degree of correlation:

Zero (positive correlation): represent to exist mutually between pairing two engineering measures of this intersection point and strengthen, mutually the reciprocation of stack;

◎ (strong positive correlation): the reciprocation of representing to exist between pairing two engineering measures of this intersection point very strong mutual stack;

* (negative correlation): represent to exist between pairing two engineering measures of this intersection point and weaken the effect of cancelling each other mutually;

# (strong negative correlation): the effect between pairing two engineering measures of this intersection point of representing is repelled strongly, and very big contradiction is arranged;

Blank: as to represent not have reciprocation between pairing two engineering measures of this intersection point.

1.3.3 competitive power assessment

(1) market competitiveness: M _i(i=1,2 ..., m)

Take off 5 grades of row:

1: represent that uncontested ability can say product overloading, sales resistance;

2: the expression competitiveness is low, and market share is successively decreased;

3: expression can come into the market, but does not have advantage;

4: be illustrated in the home market competition and have advantage;

5: be illustrated in the home market competition and have greater advantage, can participate in competition in the international market, occupy certain international market share.

(2) technological competitiveness: T _j(j=1,2 ..., n)

T _jThe technical merit of representing the engineering measure of j item.It comprises the level of index itself, and the design level of this enterprise, technological level, manufacture level, test water equality are taken off 5 grades of row:

1: the presentation technology level is low;

2: the presentation technology level is general;

3: the presentation technology level reaches the industry advanced level;

4: the presentation technology level reaches advanced international level;

5: the presentation technology level reaches international most advanced level.

1.3.4 competitiveness is calculated

(1) market competitiveness index

To market competitiveness M _i(i=1,2 ..., m) carry out comprehensive after, obtain competitiveness of product in market index M, the M value is the bigger the better, computing formula following (2):

$M=\underset{i=1}{\overset{m}{\mathrm{\Σ}}}{K}_i{M}_i/5\underset{i=1}{\overset{m}{\mathrm{\Σ}}}{K}_i---\left(2\right)$

(2) technological competitiveness index

To technological competitiveness T _i(j=1,2 ..., n) carry out comprehensive after, obtain the technological competitiveness index T of product, the T value also is the bigger the better, computing formula following (3):

$T=\underset{j=1}{\overset{n}{\mathrm{\Σ}}}{h}_j{T}_j/5\underset{j=1}{\overset{n}{\mathrm{\Σ}}}{h}_j---\left(3\right)$

(3) synthesized competitiveness index

The synthesized competitiveness index is the product of market competitiveness index and technological competitiveness index:

C＝MT

The C value is the bigger the better.

1.4 relationship degree reasoning from logic

In the process that makes up the Planning Model for House of Quality relational matrix, it is very directly perceived and be difficult to determine often to have relationship degree between many customer demands and the technical measures.Therefore determine that these relationship degree are often not only uninteresting but also time-consuming, sometimes in addition whole Planning Model for House of Quality work group member also be difficult to reach an agreement with regard to a certain n-th-trem relation n degree value.For convenience of the structure of relational matrix, the present invention adopts a cover logic of relations reasoning scheme.

If: a customer demand C1 is arranged, two technical measures T1 and T2

Order: (C1 T1) is the relationship degree of C1 and T1 to Relat, and (T1 T2) is the degree of correlation of T1 and T2 to Correl

If: Relat (C1, value T1) is " by force ", and Correl (T1, value T2) is " by force positive correlation "

Then: deducibility go out C1 and T2 relationship degree value Relat (C1, T2) for " by force " this be because of:

By degree of correlation Correl (T1, T2) value for " strong positive correlation " as can be known the improvement of T2 can cause the improvement of T1, and by relationship degree Relat (C1, T1) value for " by force " again as can be known the improvement of T1 can significantly satisfy customer demand C1, thereby customer demand C1 can be significantly satisfied in the improvement that just draws T2, be that (C1, value T2) is " by force " for the relationship degree Relat of C1 and T2.

In like manner, the relationship degree under other condition also can according to said method infer out that these The reasoning results see Table 2.

Relat(C1，T2)		Relat(C1，T1)
								9 is very strong	The last 7	In 5	A little less than in the of 3	1 is very weak	0 is irrelevant
		Correl (T1，T2)	The strong positive correlation of ◎	9	7	5	3							1	0
Zero positive correlation	7							5	3	1	1	0

Table 2 relationship degree reasoning from logic rule

Because the bottleneck technology will give to solve with the TRIZ instrument, so in the table 2 and unlisted degree of correlation Correl (T1, the inference rule when value T2) be " negative correlation by force ".Simultaneously, (T1, when value T2) was " haveing nothing to do " or " negative correlation ", (C1, value T2) then was determined on a case-by-case basis relationship degree Relat, can not be inferred by other given value to draw as degree of correlation Correl.And this cover relationship degree reasoning from logic scheme mainly is to be used in structure Planning Model for House of Quality process, helps to determine in the relational matrix some not relationship degree intuitively.

2.QFD with the TRIZ annexation

In the structure of Planning Model for House of Quality, its roof is the correlation matrix table of technical measures, and we just can needing obtain bottleneck technology---the technical measures of strong negative correlation of solution from this table the analyzing and processing of process QFD.The technical measures of strong negative correlation are conflicting, and the satisfied improvement of technical measures can cause the deterioration of another technical measures.So this bottleneck technology is exactly the output of QFD, comprise two important parameters: the caused technical measures that worsened in the time of technical measures that demand is improved and improvement.These two output parameters as the input parameter of the collison matrix of TRIZ to realize the tackling key problem of bottleneck technology.

3.TRIZ module

Can understand the objective condition of customer demand, clear and definite product design by the QFD module, but because the ambiguity of problem, be difficult to the essence of clear and definite problem.Therefore, need the process of product design be improved in conjunction with the principle of TRIZ.The contradiction of TRIZ during Machine Design is defined as physics contradiction and technical contradiction two big classes, and it solves this two classes contradiction by collison matrix and principle of invention.

When the technical solution problem, when improving certain attribute of system, tend to make other attribute deterioration in the system, at this moment just produced technical contradiction.Change the technical contradiction that causes in order to solve by parameter, G.S.Altshuller finds to have only 39 parameters to improve or deterioration from 40,000 patent solutions that he studied, each problem can be described as the conflict between any 2 parameters in 39 parameters, and many patents in past have solved these conflicts over and over again from different field.According to these solutions, G.S.Altshuller has summed up 40 inventive principle and has been used to solve these conflicts.He respectively as improving parameter and deterioration parameter, with they row and columns as a table, has formed one 39 * 39 collison matrix to 39 parameters thus, and the every pair of conflict that forms for the ranks point of crossing provides the most frequently used inventive principle.

3.1 technical contradiction solves process

It is not the innovative problems that is easy to just can solve product that the utilization conflict solves principle.Use pre-treatment and the application aftertreatment afterwards before of this theory and remain very necessary.

After a technical contradiction of a certain particular problem is confirmed, this conflict be described with the particular term in this problem technical field of living in.Afterwards, the description of conflict be translated into general terms, by these general terms choice criteria conflict characterising parameters.What canonical parameter determined is general conflict, and can select available solution principle.For complicated problems, a principle is not enough, and the effect of principle is that original system is developed towards improved direction.In improved process, deep thinking, the experience of problem all needed.

3.2 the universalization of technical contradiction

When using the theoretical solution of TRIZ technical contradiction, solve process according to technical contradiction, at first to all represent one or more groups conflict, thereby the conflict in the actual engineering design is converted into general or general technical contradiction with 39 engineering parameters.The title of 39 general engineering parameters sees Table 3.

Sequence number	Title	Sequence number	Title
					1	The moving object quality	21	Power
2	The stationary object quality	22	Energy loss
				3	The moving object size	23	Material damage
4	The stationary object size	24	Information loss
				5	The moving object area	25	The loss of time
6	The stationary object area	26	The quantity of material or things

7	The moving object volume	27	Reliability
				8	The stationary object volume	28	Measuring accuracy
9	Speed	29	Manufacturing accuracy
				10	Power	30	The susceptibility of the outside adverse factor effect of object
11	Stress or pressure	31	The adverse factor that object produces
				12	Shape	32	Manufacturability
13	Stability of structure	33	Operability
				14	Intensity	34	Compiling property
15	The action time of moving object	35	Adaptability and versatility
				16	The action time of stationary object	36	The complicacy of device
17	Temperature	37	Monitoring and the degree of difficulty of testing
				18	Illuminance	38	Automaticity
19	Moving object	39	Throughput rate
				20	The energy of stationary object

The general engineering parameter title of table 3 gathers

In order to use conveniently, these 39 general engineering parameters can be divided into following three classes:

(1) general physics and geometric parameter: No.1～12, No.17～18, No.21.

(2) current techique negative sense parameter: No.15～16, No.19～20, No.22～26, No.30～31.

(3) current techique forward parameter: No.13～14, No.27～29, No.32～39.

Commonly used in theoretical 39 engineering parameters that propose of TRIZ to moving object (moving object) and two terms of stationary object (stationary object).The object that moving object is meant self or can moves in certain space by means of external force.The object that stationary object is meant self or all it is moved in the space by means of external force.

When the negative sense parameter refers to that these parameters become big, make the degradation of system or subsystem.When the forward parameter refers to that these parameters become big, the performance of system or subsystem is improved.

3.3 inventive principle

G.S.Altshuller has extracted 40 principles that innovation and creation are followed out by the analysis and research to up to a million patents of invention, becomes the key of TRIZ technical solution conflict.Being described in detail as follows of these 40 principles:

1, cuts apart: 1. an object is divided into several sections; 2. the object segmentation is assembled; 3. improve the degree of cutting apart of object.

2, extract out: 1. from object, extract out and produce disorderly part or attribute; 2. from object, extract necessary part or attribute out.

3, part changes: 1. change the homogeneous formation of object or external environment condition and effect into heterogeneity; 2. allow each tool difference in functionality of different piece of object; 3. allow the each several part of object be in the optimum condition of action separately.

4, symmetry: 1. change symmetrical be shaped as asymmetric; 2. be asymmetric object, strengthened its asymmetry.

5, combination: 1. with homogeneity or do the object combination of close operation; 2. the operation of same nature is made up at one time.

6, versatility, multi-functional: make object have complex function to replace the function of a plurality of objects.

7, nested formation a: object is embedded another object, and then embed in another object.

8, counterweight, damper weight: 1. regulate, improve balance with other weight of object by weight to jobbie; 2. regulate the quality of object by the interaction of air dynamic behaviour, hydrodynamic characteristic.

9, retroaction in advance: 1. preset retroaction in advance; 2. to the object of the power effect that stretched, reverse-drawing power is set in advance.

10, action is preset: 1. preset necessary operation, function; 2. in due course machine, the position adds required action, function easily.

11, countermeasure prevention in advance:, supply the low reliability of object by the advance preventing countermeasure.

12, allelism: change action, the job status of object, make object not need often to promote or descend.

13, inverse problem: 1. replace requiring the action of appointment with opposite action; 2. allow the moving part of object motionless, static part is movable.

14, revolution, ellipticalness: 1. straight line, plane are become crooked shape, cube is become ellipsoid; 2. use cylinder, spherical, spiral fashion; 3. changing rectilinear motion is gyration, uses centrifugal force.

15, dynamic: 1. regulate object automatically, make its performance the best in each action phase; 2. several inscapes that object segmentation become not only variable bit but also can cooperatively interact; 3. make the movable or exchange mutually of motionless object.

16, the action of transition: when desired effect is difficult to 100% realization, on the degree that can realize, strengthen movement range, make problem reduction.

17, one dimension becomes multidimensional: 1. will do the straight-line object of one dimension and become the two dimensional surface motion; 2. the object of monolayer constructions will becomes multi-ply construction; 3. object tilt or side direction are placed.

18, vibration: 1. make object vibration; 2. the object that has vibrated improves vibration frequency; 3. use resonance; 4. replace mechanical vibration with piezoelectric vibration; 5. ultrasonic vibration and electromagnetic field are shared.

19, periodically action: 1. continuous action is changed into periodically action; 2. be periodic action, changed its frequency; 3. in pulse, add periodically again.

20, useful action continues: continue the useful action of object, stop the action of free time or intermediateness.

21, hypervelocity operation: dangerous or harmful operation is moved under hypervelocity.

22, become evil and be benefit: 1. utilize harmful factors, obtain useful result; 2. harmful key element is combined and become useful key element; 3. the amplitude that increases harmful action disappears until harmfulness.

23, feedback: 1. introduce feedback; When 2. having introduced feedback, will feed back in the other direction and carry out.

24, intermediary: 1. use intermediary to realize required action; 2. an object and another are removed the object temporary joint together easily.

25, self-service function: 1. allow object have from additional, self-repair function; 2. the remaining material of applying in a flexible way and energy.

26, substitute: 1. use simple, cheap substitute replace complex, at high price, rapid wear, unworkable object; 2. enlarge by a certain percentage or downscaled images, replace in kind with duplicating figure, image.

27, low-cost, short-life object replaces expensive, durable object: replace the durable object of high price with a large amount of low costs, short-life object and realize same function.

28, substituting of mechanical system: 1. replace mechanical system with optical system, auditory system, olfactory system; 2. use electric field, magnetic field, electromagnetic field with object interaction; 3. Chang replacement: a. variable field replaces mutually with stationary field, and the b. fixed field replaces mutually with time dependent movable field, and the c. random field replaces mutually with stationary field; 4. field and strong magnetic particle are used in combination.

29, air operated mechanism, hydraulic mechanism: the solid portion of object is replaced with gas or fluid, utilize air pressure, oil pressure, hydraulic pressure to produce the buffering function.

30, pliability diaphragm or film: 1. using has flexual diaphragm or film configuration to change existing structure; 2. use flexual diaphragm or film, object and environment are isolated.

31, use porous material: 1. make object become poriness or adding has porous object; 2. use the poriness object, in porous, added desired substance in advance.

32, change color: 1. change object or the color around it; 2. change the transparency that is difficult to see clearly object or process; 3. colour additive is arranged being difficult to see clearly in object or the process to use.

33, homogeney: main object and other object interactional with it are made with the material of same material or characteristic close.

34, the discarded or regeneration of parts: the parts of effect have been finished or do not had to 1. discarded or transformation function; The part of 2. rapid supplement consumed or minimizing.

35, the variation of the physics of object or chemical state: the state of aggregation of change object, Density Distribution, pliability, humidity etc.

36, phase change: the effect that produces when utilizing the material phase change.

37, thermal expansion: 1. use thermal expansion or heat-shrinkage material; 2. be used in combination the material of different heat expansion coefficient.

38, use powerful oxygenant: 1. common air and condensed air are replaced mutually; 2. condensed air is replaced mutually with oxygen; 3. object in the air or oxygen is handled with the ionization radioactive ray; 4. use ionization oxygen.

39, active environment not: 1. common environment replaces mutually with active environment not; 2. use vacuum environment.

40, compound substance: homogeneous material replaces mutually with compound substance.

Because these 40 principles itself are comparatively abstract, the guilding principle as solving concrete technology and contradictory also needs further to be converted into concrete solution countermeasure.

3.4 collison matrix

Use in the process of the theoretical solution of TRIZ technical contradiction, after 39 engineering parameters of utilization are converted into general or general technical contradiction to the conflict in the actual engineering design, just can utilize the corresponding relation between the engineering parameter and inventive principle in the collison matrix, instruct and solve the technical contradiction that occurs in the design process.Table 4 is the matrix sketch.

	No.1	No.2	No.3	No.4	No.5	…	No.39
								No.1			15,8 29,34		29,17 38,34		35,3 24,37
No.2				10,1 29,35			1,28 15,35
								No.3	8,15 29,34				15,17 4		14,4 28,29
No.4		35,28 40,29					30,14 7,26
								No.5	2,17 29,4		14,15 6,4				10,26 34,2
…
								No.39	35,26 24,37	28,27 15,3	18,4 28,38	30,7 14,26	10,26 34,3

Table 4 conflict solves matrix

The 1st row or the 1st of collison matrix is classified 39 engineering parameter sequence numbers of describing conflict of arranging in order as.Except that the 1st row and the 1st row, all the other 39 row form a matrix with 39 row, in the matrix element or empty or several numerals are arranged, and the principle that the recommendation in 40 inventive principle of these numerals is adopted number.The side of the described engineering parameter of row in the matrix for worsening in the conflict, the engineering parameter of row representative is a side who improves.

The process of using this collison matrix is: at first according to the sequence number of the engineering parameter of the technical characterictic that worsens in the conflict side and wish to improve, find corresponding sequence number respectively in the 1st row and the 1st are gone.Determine a certain particular matrix element at the infall of two sequence number corresponding row and row then, the inventive principle sequence number of numeral that this element is given for recommending to adopt.For example, the engineering parameter sequence number of the technical characterictic of wishing improvement and worsening is respectively No.5 and No.39, in matrix, the numeral 10,26,34,2 in the 5th row and the pairing matrix element of the 39th row infall (position shown in the ellipse in the table) is the sequence number of the inventive principle of recommending.

The TRIZ module of native system solves the inquiry of recommending principle except realize conflict based on the collison matrix table, the function that also provides the TRIZ case to browse, make the user solve checking of case, to inspire deviser's inspiration, improve user's designing quality, reduce design time by conflict to forefathers.

Beneficial effect of the present invention mainly shows: 1, utilize the computer subsidiary product creative design system to form the tool software of a cover comparative maturity, on research QFD and basis that the TRIZ function combines, utilize visual programming tools, develop subsidiary products innovative design software systems; 2, adopt the Planning Model for House of Quality model of simplifying, had practicality and operability more.

(4) description of drawings

Fig. 1 is the system global structure frame diagram.

Fig. 2 is a QFD modular structure functional diagram.

Fig. 3 is the structure in reduced mass room.

Fig. 4 is QFD and TRIZ annexation sketch.

Fig. 5 is a TRIZ modular structure functional diagram.

Fig. 6 is program run master interface.

Fig. 7 is a QFD instrument main window.

Fig. 8 is customer demand and technical measures input window.

Fig. 9 is demand importance degree and competitive power input window.

Figure 10 is relational matrix and technological competitiveness input window.

Figure 11 is the correlation matrix input window.

Figure 12 is that the synthesized competitiveness index shows sectional drawing.

Figure 13 is that Planning Model for House of Quality is browsed figure as a result.

Figure 14 is that Planning Model for House of Quality " Chinese medicine quick drying apparatus 2 " is browsed figure as a result.

Figure 15 is that Planning Model for House of Quality " Chinese medicine quick drying apparatus 3 " is browsed figure as a result.

Figure 16 is TRIZ instrument main window interface.

Figure 17 is that conflict solves recommendation principle window interface.

Figure 18 is that the TRIZ case is browsed dialog box window.

(5) embodiment

Below in conjunction with accompanying drawing the present invention is further described.

Embodiment 1

With reference to Fig. 1～Figure 18, a kind of products innovating design system based on QFD, TRIZ comprises the quality configuration module, is used for client is converted into designing requirement to the demand of product, makes product obtain client's maximum satisfaction; Inventive problem solves theoretical module, is used to provide the concrete grammar that solves the product design problem; Described quality configuration module comprises: customer demand importance degree assessment unit, be used to analyze market, and collect customer requirement, collect the information of other enterprise's like product, and induction-arrangement, comprehensively go out client's important need, and the importance degree weighting is carried out in user's request; The technical measures determining unit is used for according to customer demand, and the method for utilizing technical characteristic to decompose is determined the technical measures of corresponding customer demand; The relational matrix determining unit is used to utilize the product design evaluation method, and the relation between customer demand and the technical measures is estimated, and estimates the importance degree of various technical measures; The correlation matrix determining unit is used to determine the relation of influencing each other between every technical measures; Market competitiveness assessment unit is used for from customer demand, analyzes the competitive power of like product in market, assesses out respectively for each customer demand, carries out comprehensive back and obtains competitiveness of product in market index; The technological competitiveness assessment unit is used for determining the technical merit of every engineering measure, and various technological competitiveness are carried out the technological competitiveness that comprehensive back obtains product; Gordian technique measure, technical bottleneck determining unit are used for finding the gordian technique measure according to the big I of technical measures importance degree, and the technical measures that importance degree is big are the gordian technique measure; According to the relation of influencing each other in the correlation matrix, the technical measures of choosing strong negative correlation are the bottleneck technology; Described inventive problem solves theoretical module and comprises: collison matrix is set up the unit, be used for the technical contradiction of actual engineering design is converted into 39 general engineering parameters, 39 parameters are respectively as improving parameter and deterioration parameter, with them as row and column, form 39 * 39 collison matrix, form the sequence number of the every pair of inventive principle commonly used of conflicting in the ranks point of crossing; Inventive principle knowledge base unit is used to set up 40 abstract inventive principle, and to every principle number consecutively; Inventive problem solves the unit, be used for technical measures according to two strong negative correlation of bottleneck technology, that chooses corresponding technical measures improves parameter and deterioration parameter, and determines the inventive principle sequence number that adopts need find inventive principle according to inventive principle from knowledge base in collison matrix.

System mainly comprises QFD and two instruments of TRIZ, and the user has corresponding operating right according to different login identity.System is provided with two kinds of login identity: domestic consumer and system manager.The authority that domestic consumer only has pair Planning Model for House of Quality and TRIZ case to browse, and the system manager has the authority that whole software is managed and safeguards.Main interface such as Fig. 6 of program run.Conceptual design with Fast Drying Equipment for Chinese Herbs equipment is an example below, and the application of these two primary modules in the software is described respectively.For showing the function of this software better, following all operations all carries out with system manager's identity.

1, QFD instrument

In program run master interface, click " QFD instrument " button, can enter QFD instrument main window interface, as Fig. 7.As can be seen from Figure, the QFD instrument is divided into the newly-built of Planning Model for House of Quality and calls two functions.

(1) newly-built Planning Model for House of Quality

The structure of Planning Model for House of Quality is a large-engineering that complexity is consuming time again, and QFD group member has at first carried out the collection and the arrangement of customer demand data, has studied the technical measures that will take.Analyze and determine the input value of each component of Planning Model for House of Quality then, comprising: customer demand importance degree, the market competitiveness, technological competitiveness, relational matrix and correlation matrix etc.Next the rerun newly-built Planning Model for House of Quality sub-function module of this software, the related data that gets with above research institute is carried out the structure of Planning Model for House of Quality according to the following steps, and wherein the particular content of each input data values also will provide in building process.

(a) customer demand and technical measures input

Input quality room title " Chinese medicine quick drying apparatus 1 " click " newly-built Planning Model for House of Quality " button can eject window shown in Figure 8 in the newly-built Planning Model for House of Quality hurdle of Fig. 7.In dialog box, import " quality of product (nature and flavor reservation) ", " throughput rate of product ", " cost of equipment ", " energy consumption ", " environmental protection (harmful gas, heat distribute) " and 6 customer demands such as " equipment occupation space " as shown in Figure 8,8 technical measures (or title engineering measure) such as input " microwave technology ", " vacuum technique ", " drying efficiency ", " control automatically ", " floor area is little ", " rotating mechanism ", " vent gas treatment " and " manufactured materials ".Preserve customer demand and technical measures after the input.

(b) the customer demand importance degree and market competitiveness input

Click " demand importance degree and competitive power " button of Fig. 8, eject window shown in Figure 9.As Fig. 9, order is from top to bottom imported the customer demand importance degree respectively and is: 5,5,3,3,4,3, and the input market competitiveness is: 5,4,2,3,4,2.Click " Index for Calculation " button afterwards and carry out market competitiveness Index for Calculation.Preserve above three item number certificates respectively, return higher level's window then.

(c) relational matrix and technological competitiveness input

In window shown in Figure 8, click " opening relationships matrix " button, eject window shown in Figure 10.Relationship degree in window shown in Figure 10 between every customer demand of input and the technical measures, the value of these relationship degree is listed in table 4.

Table 4 relational matrix table

On window top by from left to right order input technology competitive power: 5,1,5,4,4,4,3,3.Click " importance degree calculating " button and carry out the calculating of technical measures importance degree, this action can make the window upper right corner " Index for Calculation " button become and can operate, and clicks the calculating that this button carries out the technological competitiveness index.After more than input is finished with calculating, preserve all data, return higher level's window.

(d) correlation matrix input

In window shown in Figure 8, click " setting up correlation matrix " button, eject correlation matrix input window shown in Figure 11.The degree of correlation between the every technical measures of input in window shown in Figure 11 (or claiming engineering measure), the value of these degrees of correlation is as shown in table 5.

Table 5 correlation matrix table

After the input of correlation matrix value was finished, " symbolic representation " button on window right side with the interface that occurs as shown in figure 11, was clicked " preservation correlation matrix " button again, returns higher level's window.

After step was finished more than all, " Index for Calculation " clicked in the window shown in Figure 8 carried out the synthesized competitiveness Index for Calculation, preserves this index then, and sectional drawing is as shown in figure 12 as a result in program run.Synthesized competitiveness Index for Calculation result's appearance and preservation have indicated that a complete Planning Model for House of Quality finished with regard to newly-built.

(2) call Planning Model for House of Quality

Planning Model for House of Quality is newly-built finish after, just can call it and carry out browsing, safeguard and having analyzed of Planning Model for House of Quality.Select " Chinese medicine quick drying apparatus 1 " in the Planning Model for House of Quality title combo box control calling of QFD instrument main window shown in Figure 7, click " calling Planning Model for House of Quality " button, can eject window shown in Figure 13.

As shown in figure 13.This window has demonstrated every exponential quantity that the deviser relatively is concerned about, and the relative Link Importance of technical measures.And to check information such as demand importance degree and the market competitiveness, relational matrix, correlation matrix, the user only needs the corresponding button in the window just can show at the next stage window, and this part function operations method and the newly-built Planning Model for House of Quality part of introducing previously are similar.In addition, this submodule also has the Planning Model for House of Quality of being called is made amendment and the function of daily servicing such as deleted.

(4) Planning Model for House of Quality data analysis

Can draw two significant datas from the data of the shown Planning Model for House of Quality of Fig. 6-13 " Chinese medicine quick drying apparatus 1 ":

I. the synthesized competitiveness index is 0.559744;

II. minimum two of the relative Link Importance of technical measures are: floor area little (27) and vacuum technique (45).

For this reason, according to the QFD theory, two minimum removals respectively of technical measures relative Link Importance, set up new Planning Model for House of Quality again, concrete condition is as follows:

Remove technical measures " vacuum technique ", newly-built Planning Model for House of Quality " Chinese medicine quick drying apparatus 2 ";

Remove technical measures " floor area is little ", newly-built Planning Model for House of Quality " Chinese medicine quick drying apparatus 3 ".

More than the result that browses of these two Planning Model for House of Quality data show respectively as Figure 14 and Figure 15.

Be comparative analysis, the master data of three Planning Model for House of Quality is listed in table 6.

The Planning Model for House of Quality title	The technical measures situation	The synthesized competitiveness index
			Chinese medicine quick drying apparatus 1	Article 8, technical measures	0.559744
Chinese medicine quick drying apparatus 2	Article 7, technical measures (removal vacuum technique)	0.591998
			Chinese medicine quick drying apparatus 3	Article 7, technical measures (floor area is little)	0.559263

Table 6 Planning Model for House of Quality master data contrast situation

Contrast situation as can be known from the master data of table 6, the synthesized competitiveness index of Planning Model for House of Quality " Chinese medicine quick drying apparatus 2 " is the highest, and the synthesized competitiveness index of " Chinese medicine quick drying apparatus 3 " is minimum.

The synthesized competitiveness index of Planning Model for House of Quality " Chinese medicine quick drying apparatus 2 " is the highest, though this mainly is because vacuum technique helps to satisfy " quality of product (nature and flavor reservation) ", " throughput rate of product ", " cost of equipment " and four customer demands such as " environmental protection (harmful gas, heat distribute) ", but its percentage contribution be not very big and other technical measures not low to these several customer demand percentage contributions, particularly the enterprise of studying self-technique strength when implementing this technology weak, technical difficulty is big.Therefore, after abandoning adopting these technical measures of vacuum technique, the synthesized competitiveness of institute's development strengthens.

Although the relative Link Importance of " floor area is little " these technical measures is minimum, the synthesized competitiveness index of abandoning the Planning Model for House of Quality " Chinese medicine quick drying apparatus 3 " of being built after it is minimum.This mainly is to be satisfied by " floor area is little " these technical measures because of customer demand " equipment occupation space ", abandon adopting these technical measures will directly cause seriously not satisfying of customer demand " equipment occupation space ", thereby also weaken with regard to the synthesized competitiveness that causes institute of enterprise development.

Based on above analysis, can draw such as drawing a conclusion: research enterprise if adopt " microwave technology ", " drying efficiency ", " control automatically ", " floor area is little ", " rotating mechanism ", " vent gas treatment " and " manufactured materials " these 7 technical measures, the synthesized competitiveness of institute's development will obtain maximal value.

But the correlation matrix by Figure 11 can find out that technical measures " floor area is little " are " # " with the degree of correlation symbol of " drying efficiency ", represent strong negative correlation.This shows that between " floor area is little " and " drying efficiency " these two technical measures be conflicting, because diminishing, the drying equipment floor area can cause reducing of drying chamber volume, this means that each dry traditional Chinese medicine amount will tail off, thereby drying efficiency will reduce.So must solve this conflict and could make that the optimum development scheme (Planning Model for House of Quality " Chinese medicine quick drying apparatus 2 ") of this enterprise is implemented.For this reason, will be incorporated into the TRIZ module of software to this conflict to seek solution, so this just becomes the contact hinge of two module tools to conflicts technique naturally as the output of QFD module and the input of TRIZ module.

2, TRIZ instrument

The TRIZ instrument is divided into conflict solution principle recommendation and the TRIZ case is browsed this two functions.

(1) the prominent principle that solves is recommended

At first, conflicting two technical measures are changed in 39 general engineering parameters (seeing Table 3-1) that the TRIZ theory summarizes two.Can draw " floor area is little " corresponding engineering parameter " stationary object area ", " drying efficiency " corresponding engineering parameter " throughput rate " by analysis.Because this conflict is to want the floor area of drying equipment is reduced, and has but caused the reduction of drying efficiency.Therefore, " stationary object area " is the parameter that needs improvement, and the parameter that " throughput rate " is worsened.The TRIZ instrument that next just can enter into software has been found the solution problem.

Click " TRIZ instrument " button at program run master interface shown in Figure 6, can enter TRIZ instrument main window interface, in the respective combination frame of window, select " stationary object area " and " throughput rate " these two engineering parameters respectively, as Figure 16.

After the engineering parameter input, click " determining " button, can demonstrate the principle that the conflict solution is recommended by pop-up window, as shown in figure 17.

As can be seen from Figure, software provides the title and the detailed description of 4 inventive principle altogether.By analysis as can be known, " 2. the object of monolayer constructions will becomes multi-ply construction " in the 17th principle " one dimension change multidimensional " that utilization is recommended, drying chamber inside is designed to sandwich construction, can realize that each dry traditional Chinese medicine amount of little while of exsiccator floor area is also big, thus also just solved " floor area is little " and " drying efficiency " this to technical contradiction.

(2) the TRIZ case is browsed

TRIZ case function of browse submodule mainly is to allow the deviser solve checking of case by the conflict to forefathers, can inspire the design inspiration of oneself, thereby realize technological improvement and innovation to product, program window interface such as Figure 18.Can realize conflicting and solve the operations such as browsing, insert, revise and delete of case.

Claims (8)

1, a kind of products innovating design system based on QFD, TRIZ comprises the quality configuration module, is used for client is converted into designing requirement to the demand of product, makes product obtain client's maximum satisfaction; Inventive problem solves theoretical module, is used to provide the concrete grammar that solves the product design problem; It is characterized in that:

Described quality configuration module comprises:

Customer demand importance degree assessment unit is used to analyze market, collects customer requirement, and the information of collecting other enterprise's like product, and induction-arrangement comprehensively go out client's important need, and the importance degree weighting is carried out in user's request;

The technical measures determining unit is used for according to customer demand, and the method for utilizing technical characteristic to decompose is determined the technical measures of corresponding customer demand;

The relational matrix determining unit is used to utilize the product design evaluation method, and the relation between customer demand and the technical measures is estimated, and estimates the importance degree of various technical measures;

The correlation matrix determining unit is used to determine the relation of influencing each other between every technical measures;

Market competitiveness assessment unit is used for from customer demand, analyzes the competitive power of like product in market, assesses out respectively for each customer demand, carries out comprehensive back and obtains competitiveness of product in market index;

The technological competitiveness assessment unit is used for determining the technical merit of every engineering measure, and various technological competitiveness are carried out the technological competitiveness that comprehensive back obtains product;

Gordian technique measure, technical bottleneck determining unit are used for finding the gordian technique measure according to the big I of technical measures importance degree, and the technical measures that importance degree is big are the gordian technique measure; According to the relation of influencing each other in the correlation matrix, the technical measures of choosing strong negative correlation are the bottleneck technology;

Described inventive problem solves theoretical module and comprises:

Collison matrix is set up the unit, be used for the technical contradiction of actual engineering design is converted into 39 general engineering parameters, 39 parameters are respectively as improving parameter and deterioration parameter, with them as row and column, form 39 * 39 collison matrix, form the sequence number of the every pair of inventive principle commonly used of conflicting in the ranks point of crossing;

Inventive principle knowledge base unit is used to set up 40 abstract inventive principle, and to every principle number consecutively;

Inventive problem solves the unit, be used for technical measures according to two strong negative correlation of bottleneck technology, that chooses corresponding technical measures improves parameter and deterioration parameter, and determines the inventive principle sequence number that adopts need find inventive principle according to inventive principle from knowledge base in collison matrix.

2, the products innovating design system based on QFD, TRIZ as claimed in claim 1 is characterized in that: in described customer demand importance degree assessment unit, and customer demand importance degree K _iTake off 5 grades of row, i=1,2 ..., m:

1: expression does not influence the demand that function realizes;

2: expression does not influence the demand that major function realizes;

3: represent that heavier strategic point influences the demand that function realizes;

4: expression importantly influences the demand that function realizes;

5: represent basic, relate to demand safe, particular importance;

Relationship degree r _Ij

3, the products innovating design system based on QFD, TRIZ as claimed in claim 2 is characterized in that: in the relational matrix determining unit, adopt the relationship degree grade of 1,3,5,7,9 forms:

1: represent to have faint relation between pairing engineering measure of this intersection point and the customer demand;

3: represent to exist between pairing engineering measure of this intersection point and the customer demand more weak relation;

5: represent to have general relation between pairing engineering measure of this intersection point and the customer demand;

7: represent to have confidential relation between pairing engineering measure of this intersection point and the customer demand;

9: represent to have very confidential relation between pairing engineering measure of this intersection point and the customer demand;

0: there is not relation in expression;

And the computing formula of the importance degree of engineering measure is (1) after the weighting:

$h_j=\underset{i=1}{\overset{m}{\mathrm{\Σ}}}{K}_i{r}_{\mathrm{ij}}---\left(1\right)$

h _jBe importance degree, represent in close relations between engineering measure of j item and the multinomial customer demand.

4, as claim 2 or 3 described products innovating design systems, it is characterized in that based on QFD, TRIZ: in described correlation matrix determining unit, degree of correlation t _IjWith the following symbolic representation degree of correlation:

Positive correlation: represent to exist mutually between pairing two engineering measures of this intersection point and strengthen, mutually the reciprocation of stack;

Strong positive correlation: the reciprocation of representing to exist between pairing two engineering measures of this intersection point very strong mutual stack;

Negative correlation: represent to exist between pairing two engineering measures of this intersection point and weaken the effect of cancelling each other mutually;

Strong negative correlation: the effect between pairing two engineering measures of this intersection point of representing is repelled strongly, and very big contradiction is arranged;

Blank: as to represent not have reciprocation between pairing two engineering measures of this intersection point.

5, the products innovating design system based on QFD, TRIZ as claimed in claim 4 is characterized in that: in described market competitiveness assessment unit, and market competitiveness M _i, i=1,2 ..., m, take off 5 grades of row:

1: represent that uncontested ability can say product overloading, sales resistance;

2: the expression competitiveness is low, and market share is successively decreased;

3: expression can come into the market, but does not have advantage;

4: be illustrated in the home market competition and have advantage;

5: be illustrated in the home market competition and have greater advantage, can participate in competition in the international market, occupy certain international market share;

To market competitiveness M _iAfter carrying out comprehensively, obtain competitiveness of product in market index M, computing formula following (2):

$M=\underset{i=1}{\overset{m}{\mathrm{\Σ}}}{K}_i{M}_i/5\underset{i=1}{\overset{m}{\mathrm{\Σ}}}{K}_i---\left(2\right)$

M represents market competitiveness index.

6, the products innovating design system based on QFD, TRIZ as claimed in claim 4 is characterized in that: in described technological competitiveness assessment unit, and T _jThe technical merit of representing the engineering measure of j item, j=1,2 ..., n, it comprises the level of index itself, the design level of this enterprise, technological level, manufacture level, test water equality are taken off 5 grades of row:

1: the presentation technology level is low;

2: the presentation technology level is general;

3: the presentation technology level reaches the industry advanced level;

4: the presentation technology level reaches advanced international level;

5: the presentation technology level reaches international most advanced level;

To technological competitiveness T _jAfter carrying out comprehensively, obtain the technological competitiveness index T of product, computing formula following (3):

$T=\underset{j=1}{\overset{n}{\mathrm{\Σ}}}{h}_j{T}_j/5\underset{j=1}{\overset{n}{\mathrm{\Σ}}}{h}_j---\left(3\right)$

T presentation technology competitiveness index.

7, the products innovating design system based on QFD, TRIZ as claimed in claim 3, it is characterized in that: in the relational matrix determining unit, set up the reasoning from logic rule, not directly perceived as the relationship degree between customer demand and the technical measures, according to the relationship degree between then definite customer demand of reasoning from logic state and the technical measures.

8, as the described products innovating design system of one of claim 1-7, it is characterized in that: solve in the unit at described inventive problem, existing case is stored, make the user check that forefathers' conflict solves case based on QFD, TRIZ.

Images