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T h e e m e r g e n c e a n d a p p l i c a t i o n o f t h e t e c h n o l o g y o f i n d u s t r i a l m e a s u r e m e n t i s t h e i n e v i t a b l e r e q u i r e m e n t f o r t h e i n t e g r a t e d d e v e l o p m e n t o f t h e d e s i g n , m a n u f a c t u r i n g a n d t e s t i n g o f i n d u s t r i a l p r o d u c t s . T h e i n d u s t r i a l m e a s u r e m e n t m a i n l y i n c l u d e s t h r e e k i n d s o f k e y t e c h n o l o g i e s , w h i c h a r e d a t a a c q u i s i t i o n , p r o c e s s i n g a n d 3 D m o d e l r e c o n s t r u c t i o n . T h e c u r r e n t d a t a a c q u i s i t i o n t e c h n o l o g y h a s a l r e a d y b e c o m e m a t u r e . A n d v a r i o u s a d v a n c e d m e a s u r i n g e q u i p m e n t p r o v i d e t h e b a s i s a n d t h e g u a r a n t e e f o r t h e d i g i t a l p h y s i c a l m o d e l . H o w e v e r , t h e r e s t i l l e x i s t m a n y p r o b l e m s i n t h e d a t a p r o c e s s i n g a n d r e c o n s t r u c t i o n o f 3 D m o d e l . I n v i e w o f t h i s , t h e m a i n c o n t e n t s o f t h i s p a p e r a r e a s f o l l o w s :
( 1 ) S e v e r a l i n d u s t r i a l m e a s u r e m e n t m e t h o d s a n d s y s t e m s w h i c h u s e d c o m m o n l y n o w a d a y s w e r e i n t r o d u c e d d e t a i l e d l y . T h e c o m p o s i t i o n a n d p r i n c i p l e o f v a r i o u s s y s t e m s w e r e a n a l y z e d ; t h e a c c u r a c y , a d v a n t a g e s a n d d i s a d v a n t a g e s a n d a d a p t a b i l i t y o f v a r i o u s m e t h o d s o f m e a s u r e m e n t w e r e c o m p a r e d .
( 2 ) T h e a l g o r i t h m s f o r t h e c o o r d i n a t e t r a n s f o r m a t i o n o f i n d u s t r i a l m e a s u r e m e n t w e r e d i s c u s s e d , i n - d e p t h r e s e a r c h o f t h e s t e p - s w i t c h i n g m o d e l a n d t h e s e v e n - p a r a m e t e r t r a n s f o r m a t i o n m o d e l f o r t h e c o o r d i n a t e t r a n s f o r m a t i o n w e r e d o n e , a n d t h e r e l a t e d p r o g r a m d e v e l o p m e n t a n d a n a l y s i s o f p r a c t i c a l c a s e s w e r e c a r r i e d o n .
( 3 ) F o r t h e r e g u l a r s u r f a c e s , t h e l e a s t - s q u a r e s f i t t i n g a l g o r i t h m a n d t h e c a l c u l a t i o n o f t h e f i t t i n g e r r o r w e r e s t u d i e d ; w h i l e f o r t h e i r r e g u l a r s u r f a c e s , t h e m e t h o d o f s u r f a c e r e c o n s t r u c t i o n b a s e d o n N U R B S w a s r e s e a r c h e d . S e v e r a l c o m m o n p a r a m e t e r i z a t i o n s o f d a t a p o i n t s a n d t h e s e l e c t i o n p r i n c i p l e s w e r e d i s c u s s e d ; a n d t h e o p t i m i z a t i o n o f t h e N U R B S c u r v e s u r f a c e i n t e r p o l a t i o n a l g o r i t h m w a s f o c u s e d o n , t h e m e t h o d t o c o n s t r u c t t h e a d d i t i o n a l e q u a t i o n b y a c o m b i n a t i o n o f t a n g e n t a n d p a r a b o l i c c o n d i t i o n w a s r e s e a r c h e d , w h i c h e n h a n c e d s y s t e m o p e r a t i o n e f f i c i e n c y a n d s u r f a c e r e c o n s t r u c t i o n q u a l i t y ; a p a r t f r o m t h i s , t h e r e n d e r i n g a n d d i s p l a y t e c h n o l o g y o f N U R B S s u r f a c e w e r e s t u d i e d , a n d t h e r e l a t e d p r o g r a m w a s d e v e l o p e d .
( 4 ) T h r e e - d i m e n s i o n a l d i s p l a y t e c h n o l o g y b a s e d o n O p e n G L a n d t h e c o n n e c t i o n m e t h o d w i t h A u t o C A D w e r e s t u d i e d i n d e t a i l . t h e f u n c t i o n o f c a l l i n g D X F f o r m a t g r a p h a n d d a t a i n t h e d e v e l o p e d s y s t e m w a s r e a l i z e d , w h i c h a c h i e v e d t h e g o a l t h a t c o n t r a s t i v e l y a n a l y z i n g t h e m e a s u r e m e n t d a t a a n d t h e d e s i g n i n r e a l - t i m e ; i n - d e p t h s t u d y o f t h r e e - d i m e n s i o n a l m o d e l d e m o n s t r a t i o n a n d i n t e r a c t i v e o p e r a t i o n t e c h n o l o g y w e r e c a r r i e d o n s o t h a t w e r e a l i z e d t h e f u n c t i o n o f p a n , z o o m , r o t a t e m o d e l , p i c k i n g u p t h e e l e m e n t s o f p o i n t , l i n e o r s u r f a c e , r e a l - t i m e d i s p l a y t h e c a l c u l a t i o n r e s u l t s a n d i n q u i r y i n f o r m a t i o n , a n d w e a l s o r e a l l y a c h i e v e d t h r e e - d i m e n s i o n a l v i s u a l i z a t i o n o f m e a s u r i n g d a t a a n a l y s i s .
( 5 ) B a s e d o n t h e d e v e l o p m e n t p l a t f o r m o f V B a n d O p e n G L , t h e d e s i g n a n d d e v e l o p m e n t o f t h e a n a l y s i s s y s t e m o f m e a s u r e m e n t d a t a w a s c o m p l e t e d , w h i c h i s f o r t h e a c c u r a c y m a n a g e m e n t a n d c o n t r o l i n t h e p r o c e s s o f b o d y s e c t i o n c o n s t r u c t i o n . T h e s y s t e m h a s c a p a b i l i t i e s o f d a t a b a s e m a n a g e m e n t , d a t a p r o c e s s i n g , a s s e m b l y a n a l y s i s , s u r f a c e f i t t i n g a n d v i s u a l i z a t i o n a n a l y s i s . A n d t h e t e s t p r o v e d t h a t t h e s y s t e m w a s r u n n i n g w e l l a n d t h e a n a l y s i s r e s u l t w a s c o r r e c t a n d r e l i a b l e , w h i c h w a s t h e g o a l w e e x p e c t e d t o r e a c h .
K e y w o r d : i n d u s t r i a l m e a s u r e m e n t , c o o r d i n a t e t r a n s f o r m a t i o n , l e a s t - s q u a r e s f i t t i n g , N U R B S ( N o n - U n i f o r m R a t i o n a l B - S p l i n e ) , v i s u a l i z a t i o n , O p e n G L
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[ 1 ] W a n g C h a o l i n g , Z h a n g Y o n g c h a o . S t u d y o n R e a l - t i m e A t t i t u d e S u r v e y o f S h i e l d M a c h i n e s f o r M e t r o W o r k s [ J ] . H Y P E R L I N K " h t t p : / / d l i b . c n k i . n e t / K N S 5 0 / N a v i / B r i d g e . a s p x ? L i n k T y p e = B a s e L i n k & D B C o d e = c j f d & T a b l e N a m e = c j f d b a s e i n f o & F i e l d = B a s e I D & V a l u e = Z N G L & N a v i L i n k = % e 5 % 8 5 % a c % e 8 % b 7 % a f % e 5 % b 7 % a 5 % e 7 % a 8 % 8 b " \ t " _ b l a n k " T u n n e l C o n s t r u c t i o n , 2 0 0 7 , 2 7 ( 6 ) : 3 3 - 3 5 , 3 8 .
[ 2 ] Y u e J i a n p i n g , W e i Y e q i n g , Z h a n g Y o n g c h a o . R e s e a r c h o n S u r v e y a n d A n a l y s i s S y s t e m f o r H u l l C o n s t r u c t i o n [ J ] . B u l l e t i n o f S u r v e y i n g a n d M a p p i n g , 2 0 0 8 , ( 1 0 ) : 2 0 - 2 2 .
[ 3 ] Z h a n g Y o n g c h a o , Y u e J i a n p i n g , W a n g H a i q i n g . D X F D o c u m e n t R e a d e r a n d I n t e r a c t i v e C o n t r o l B a s e d o n V B 6 . 0 a n d O p e n G L [ J ] . C o m p u t e r e r a , 2 0 0 9 , ( 9 ) : 3 9 - 4 1 .
I n t r o d u c t i o n o f t h e A u t h o r : Z h a n g Y o n g c h a o , w a s b o r n o n O c t o r b e r . 1 0 1 9 8 4 . U n d e r t h e g u i d a n c e o f p r o f . Y u e J i a n p i n g . H e w a s a w a r d e d t h e M a s t e r d e g r e e o f E n g i n e e r i n g a t H o h a i U n i v e r s i t y o n A p r . 3 0 2 0 1 0 . N o w h e c o n t i n u e s h i s r e s e a r c h w o r k s i n t h e f i e l d o f H Y P E R L I N K " a p p : d s : G e o d e s y % 2 0 a n d % 2 0 S u r v e y % 2 0 E n g i n e e r i n g " \ t " _ s e l f " G e o d e s y a n d S u r v e y E n g i n e e r i n g .
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