What are the examples and solutions of technical contradictions?

The process of solving technical contradiction is: firstly, a specific problem to be solved described in popular language is transformed into a technical contradiction described by 39 general parameters (TRIZ terms)-the so-called standard "problem model".

Then, aiming at this kind of problem model, we further use the problem-solving tool-contradiction matrix to find innovative principles. According to these innovative principles, people are inspired to find some feasible solutions to specific practical problems through deduction and concretization. The general problem-solving mode for solving technical contradictions is shown in the figure.

Here, an example is used to illustrate the application method of contradiction matrix. For example, if you send a satellite into space, you hope that the lighter the satellite is, the better, because it will be easier to carry and the cost will be reduced.

But to reduce the weight, it is necessary to reduce the size, and the performance of the satellite will be affected. In this way, when the satellite is easier to carry, the weight and size of the satellite are contradictory. Because this contradiction occurs when the satellite is moving, the weight and size of the satellite correspond to the two technical characteristics of "the weight of the moving object" (to be improved) and "the size of the moving object" (to be deteriorated) in the contradiction matrix respectively.