Community Micro-Ambulance Design Based on QFD and TRIZ Theories

Table 11

Ambulance conflicts and recommended principles of invention.

Type	Conflicts and contradiction	Refinement of conflicts	Separation principle	Recommended principles of invention [30]
Physical contradictions	Number of accompanying people/equipment and the number of ambulances	Quantity: more and less	Time separation principle	9, 10, 11, 15, 34
	Narrow appearance and easy to pass through-convenient parking and opening	Appearance: wide and narrow	Spatial separation principle	1, 2, 3, 7, 4, 17
	Narrow appearance-easy to pass through and spacious interior space	Appearance: wide and narrow	Spatial separation principle	28, 33, 1, 18
Technical contradictions	Strong driving stability-high driving speed	Speed and structural stability	Corresponding invention principle	28, 33, 1, 18