1, innovation principle and technical contradiction
In TRIZ theory, technical contradiction refers to the contradiction that one parameter or characteristic of a technical system is improved while another parameter or characteristic is deteriorated. TRIZ theory sums up the factors leading to technical contradictions into 39 general engineering parameters, establishes a contradiction matrix table, and provides 40 innovative principles for solving technical contradictions.
2. Physical contradiction and separation principle
Physical contradiction means that there are mutually exclusive or even diametrically opposite requirements for the same parameter of technical system, and the core of solving physical contradiction is to realize the separation of contradictory parties. The separation principle among 40 innovative principles can be used to solve physical contradictions. The main content of the separation principle is to separate the two sides of the contradiction, form different technical systems respectively, and replace the internal connection with the connection between the systems, so that the internal contradiction can be transformed to the outside.
3. Standard solution and material field model
In TRIZ theory, the graphic representation of the system with minimum function and controllable technology is called the material-field model. Physical field analysis can build many very complex problems into physical field models related to the existing technical system, find the closest solution from 76 standard solutions, and obtain the final ideal solution simply and orderly.
4. How to model, knowledge base and effect base.
How to model is to define the life cycle stages, components and interactions of the system by constructing the abstract functional model of the system, and to describe and understand the system comprehensively with the functional model. The solution of how to model is to query knowledge base and scientific principle effect base. Effect is the law of various fields, covering the principles of multi-disciplinary fields. TRIZ collected more than 1400 effects according to the principle from technology to realization through the research and analysis of patented technology.
5.ARIZ invented the problem solving algorithm.
Ariz (invention problem solving algorithm) is a complete algorithm for solving invention problems. When solving some complex problems, we can't directly rely on contradiction matrix and material field analysis, because we can't analyze obvious contradictions. ARIZ provides unique algorithm steps to turn complex and fuzzy problems into clear invention problems. Using the step flow provided by ARIZ, the most fundamental conflict of the initial problem is clearly displayed, and whether it can be solved is very clear.