Research on 3D Measurement and Rapid Location Technique for Assembling the Special-Shaped Structural Segments

Table 4

Connection interfaces matching state with minimum align deviation value.

Feature point	Erected segment			To be erected segment			Calculated misalignment		Normal superposition
	X	Y	Z	X	Y	Z	X	Y	Z
U1\L1	10,354	2	22	10,350	8	−19	−4	6	−41
U2\L2	8,319	1	21	8,316	11	−8	−2	10	−28
U3\L3	8,368	9,018	21	8,368	9,018	2	0	0	−19
U4\L4	10,403	9,014	18	10,400	9,024	−11	−3	10	−30
U5\L5	2,041	17	21	2,034	8	−7	−7	−9	−28
U6\L6	6	12	19	3	8	0	−2	−4	−19
U7\L7	1,850	9,020	18	1,859	9,011	−3	9	−8	−21
U8\L8	−183	9,008	16	−174	9,011	−8	9	3	−24

Optimization parameters of misalignment: ΔX = 3.2, ΔY = 5.9, and  = −3.93E-04.