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274 PHA. M D´U
.
C LONG
* X´ac di.nh khoa’ng c´ach t`u. forklift dˆe´n pallet
Khi auto-forklift di chuyˆe’n dˆe´n gˆa`n pallet hu.´o.ng c´ac a’nh trong h`ınh 10 c˜ung thay dˆo’i.
B˘a`ng c´ach tra c´ac ba’ng lˆa.p s˘a˜n quan hˆe. khoa’ng c´ach = f(Orientation, sˆo´ pixel) ch´ung
ta s˜e suy ra du.o.
. c khoa’ng c´ach thu.
. c.
* X´ac di.nh chiˆe`u cao t`u. s`an dˆe´n c´ac lˆo˜ cu’a pallet
Gia’ di.nh pallet d˘a.t trˆen s`an nˆen khoa’ng c´ach n`ay luˆon b˘a`ng h˘a`ng sˆo´ x´ac di.nh tru.´o.c.
Thuˆa.t to´an thu.
. c hiˆe.n phu.o.ng ph´ap x´ac di.nh hu.´o.ng v`a vi. tr´ı gi´a d˜o. h`ang v´o.i xe tu.
. dˆo.ng
du.
. a trˆen ´y tu.o.’ ng t´ınh to´an thˆo b˘a`ng tra ba’ng dˆe’ nhanh ch´ong tiˆe´p cˆa.n xe d´ung hu.´o.ng v´o.i
gi´a d˜o. sau d´o gi˜u. v˜u.ng hu.´o.ng v`a tiˆe´p cˆa.n dˆa`n dˆe´n gi´a d˜o.. Khi c`on mˆo.t khoa’ng c´ach nhˆa´t
di.nh s˜e t´ınh to´an la.i ch´ınh x´ac.
H`ınh 11. Mˆa˜u SMKILLER
H`ınh 12. Mˆa˜u HOLLOW
H`ınh 13. Mˆa˜u PATCHMAK
Gia’i th´ıch c´ac bu.´o.c thuˆa.t to´an (H`ınh 14):
Bu.´o.c 1. Thu a’nh (loa.i nhiˆe˜u, xo´a dˆo´i tu.o.
. ng nho’) su.’ du. ng mˆa˜u SMKILLER (h`ınh 11). Bu.´o.c
2. T`u. a’nh pallet mang h`ang t´ach lˆa´y c´ac phˆa`n a’nh m˘a.t tru.´o.c v`a su.`o.n cu’a pallet nhu. h`ınh
10a,b,c. Sau d´o chuyˆe’n th`anh c´ac dˆo´i tu.o.
. ng d˘a.c (nhu. h`ınh 10,e,f). Su.’ du.ng mˆa˜u HOLLOW
(h`ınh 12) ho˘a.c PATCHMAK (h`ınh 13).
Bu.´o.c 3. T´ınh Orientation, xem xe tiˆe´p cˆa.n pallet t`u. ph´ıa n`ao (t`u. ph´ıa tr´ai hay ph´ıa pha’i).
Bu.´o.c 4. Tra ba’ng LUT dˆe’ suy ra X, Y. Bu.´o.c n`ay t´ınh so. bˆo. khoa’ng c´ach dˆe’ biˆe´t xe c´o pha’i
l`ui la.i khˆong hay tiˆe´p cˆa.n luˆon theo qu˜y da.o nhu. h`ınh 5.
Bu.´o.c 5. Gu.’ i c´ac thˆong tin ϕ, X, Y dˆe´n hˆe. dıˆe` u khiˆe’n di chuyˆe’n xe.
Bu.´o.c 6. T´ınh g´oc lˆe.ch sau khi d˜a dıˆe` u chı’nh hu.´o.ng.
Bu.´o.c 7. Nˆe´u thˆa´y g´oc lˆe.ch khˆong gia’m dı th`ı c´o nghi˜a l`a t´ınh sai (ho˘a.c dıˆe` u khiˆe’n sai). S˜e
l`ui la.i dˆe’ t´ınh la.i (bu.´o.c 11).
Bu.´o.c 8. Kiˆe’m tra xem d˜a d´ung hu.´o.ng ch´ınh diˆe.n chu.a?
Bu.´o.c 9. Tru.´o.c khi c´ach gi´a d˜o. 2 m b˘a´t dˆa`u t´ınh ch´ınh x´ac theo cˆong th´u.c (3) v`a c´ac cˆong
th´u.c chuyˆe’n hˆe. toa. dˆo. xem dˆe´n khoa’ng c´ach c´o thˆe’ m´oc c`ang xe v`ao pallet chu.a?

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  • 1. 274 PHA. M D´U . C LONG * X´ac di.nh khoa’ng c´ach t`u. forklift dˆe´n pallet Khi auto-forklift di chuyˆe’n dˆe´n gˆa`n pallet hu.´o.ng c´ac a’nh trong h`ınh 10 c˜ung thay dˆo’i. B˘a`ng c´ach tra c´ac ba’ng lˆa.p s˘a˜n quan hˆe. khoa’ng c´ach = f(Orientation, sˆo´ pixel) ch´ung ta s˜e suy ra du.o. . c khoa’ng c´ach thu. . c. * X´ac di.nh chiˆe`u cao t`u. s`an dˆe´n c´ac lˆo˜ cu’a pallet Gia’ di.nh pallet d˘a.t trˆen s`an nˆen khoa’ng c´ach n`ay luˆon b˘a`ng h˘a`ng sˆo´ x´ac di.nh tru.´o.c. Thuˆa.t to´an thu. . c hiˆe.n phu.o.ng ph´ap x´ac di.nh hu.´o.ng v`a vi. tr´ı gi´a d˜o. h`ang v´o.i xe tu. . dˆo.ng du. . a trˆen ´y tu.o.’ ng t´ınh to´an thˆo b˘a`ng tra ba’ng dˆe’ nhanh ch´ong tiˆe´p cˆa.n xe d´ung hu.´o.ng v´o.i gi´a d˜o. sau d´o gi˜u. v˜u.ng hu.´o.ng v`a tiˆe´p cˆa.n dˆa`n dˆe´n gi´a d˜o.. Khi c`on mˆo.t khoa’ng c´ach nhˆa´t di.nh s˜e t´ınh to´an la.i ch´ınh x´ac. H`ınh 11. Mˆa˜u SMKILLER H`ınh 12. Mˆa˜u HOLLOW H`ınh 13. Mˆa˜u PATCHMAK Gia’i th´ıch c´ac bu.´o.c thuˆa.t to´an (H`ınh 14): Bu.´o.c 1. Thu a’nh (loa.i nhiˆe˜u, xo´a dˆo´i tu.o. . ng nho’) su.’ du. ng mˆa˜u SMKILLER (h`ınh 11). Bu.´o.c 2. T`u. a’nh pallet mang h`ang t´ach lˆa´y c´ac phˆa`n a’nh m˘a.t tru.´o.c v`a su.`o.n cu’a pallet nhu. h`ınh 10a,b,c. Sau d´o chuyˆe’n th`anh c´ac dˆo´i tu.o. . ng d˘a.c (nhu. h`ınh 10,e,f). Su.’ du.ng mˆa˜u HOLLOW (h`ınh 12) ho˘a.c PATCHMAK (h`ınh 13). Bu.´o.c 3. T´ınh Orientation, xem xe tiˆe´p cˆa.n pallet t`u. ph´ıa n`ao (t`u. ph´ıa tr´ai hay ph´ıa pha’i). Bu.´o.c 4. Tra ba’ng LUT dˆe’ suy ra X, Y. Bu.´o.c n`ay t´ınh so. bˆo. khoa’ng c´ach dˆe’ biˆe´t xe c´o pha’i l`ui la.i khˆong hay tiˆe´p cˆa.n luˆon theo qu˜y da.o nhu. h`ınh 5. Bu.´o.c 5. Gu.’ i c´ac thˆong tin ϕ, X, Y dˆe´n hˆe. dıˆe` u khiˆe’n di chuyˆe’n xe. Bu.´o.c 6. T´ınh g´oc lˆe.ch sau khi d˜a dıˆe` u chı’nh hu.´o.ng. Bu.´o.c 7. Nˆe´u thˆa´y g´oc lˆe.ch khˆong gia’m dı th`ı c´o nghi˜a l`a t´ınh sai (ho˘a.c dıˆe` u khiˆe’n sai). S˜e l`ui la.i dˆe’ t´ınh la.i (bu.´o.c 11). Bu.´o.c 8. Kiˆe’m tra xem d˜a d´ung hu.´o.ng ch´ınh diˆe.n chu.a? Bu.´o.c 9. Tru.´o.c khi c´ach gi´a d˜o. 2 m b˘a´t dˆa`u t´ınh ch´ınh x´ac theo cˆong th´u.c (3) v`a c´ac cˆong th´u.c chuyˆe’n hˆe. toa. dˆo. xem dˆe´n khoa’ng c´ach c´o thˆe’ m´oc c`ang xe v`ao pallet chu.a?