About Multi-Temporal Management of Raster Data in GIS and its System Design

Transcription

1 Cu If S d M E Nv. 2012, Vl. 2 I. 11, PP Abu Mul-Tl M f R GIS d Sy Juj Zhu Whu Cll, Huzh Uvy f S d Thly Wuh, , Ch zjj0718@126. Ab- I h h, h uh xld Mul-l bl f d GIS. Th d u h hd f ub-bd, d u h wy f b f l d ffl h ul-l d. Bd AGIS d Ol 10 lf, h uh ud h VB. d h l f dy dvl wk, d d d l db y f ul-l dul. I fu b bl Sly, vly d ffly ul-l d. Kywd- R b Sy; Mul-Tl M;Sub-Bd S M; Sy I. SYSTEM OVERVIEW O d, h db y h f y (GIS). I ly ud f d d, d u d f h d-lvl l db l [1]. I dd h y l huld b bl vd ff u v lf, hh-quly d d hl u. Th bk-d v f db lly u Ol 10, h v y UNIX. Th d uby ly bd AGIS9.2, ASE d AObj [3], ud Vul B. f dy dvl. Thl hu f y fllw [2] : AO R d uby ORCLE M Sy Th db AObj C ASE Fu 1 Th d uby hl hu II. SYSTEM FUNCTION MOULE Th d uby bd h dv f fu dul h b dvdd d vw dly, quy, d,, d ud, x, d hy (ul-l ),, h dul. w V M y Q u R d uby d k u y C h H M x I Fu 2 Th dv f d uby Mdul Blk III. A. Mdul Ovvw MULTI-TEMPORAL MANAGEMENT Th ul-l f d hy f d. Hl d f d dvdd l hy d ffl hy. Ol hl d ly d d h db vw. Yu u h ffl hy h db h ly vw. Mul-l dul h y fu, uh h lz f h u bw d quy ul-l d. Th dul h ld dll fl f w. I lld by h d uby. B. Cfu If Mul-l f d h Ol h f bl, h f bl h h d h db

2 Cu If S d M E Nv. 2012, Vl. 2 I. 11, PP I h ul-l d, huh AO h f bl, u d hv d h f f db h db. C. Th M Suu R db d f dl hh (OM) db, ul d dl lv dl (GRI-EM) db w, h u f h d d by du f OM, GRI-EM fl d. I dd, h GIS db l d vd v d bkud OM d GRI-EM d, dly bkud, h uxly, quy d vl. Th ll db d d b vlvd dff l, dff h f h OM, GRI-EM d f lf, f d blk, R d b bd dff l u. R d lf f h d f dff l, dff j wh zd ; f f h d h ud Sub-bd d zd d h yd ; blk dvdd ub f h d ll hyl d blk, h blk y BLOB, h h blk bl ud by d, h ly bd f xl [4]. F d (OM, GRI-EM), u h hd f ub-bd, d b wh h l lh f dl hv l ffl d v. Hl h d ff-l h, d l d lwy u d. Wh w d bw x f h d f hl fu, Wh w d bw x f h d f hl fu, w hl fu d f ffl bl l bl.w hl fu d f ffl bl l bl. Wh h b f l d ffl wy w h ul-l d. Pyd lv.2 Pyd lv.1 Pyd lv.0 TABLE I HISTORY STRUCTURE TABLE Fu 3 Sl Idx Suu yd Cd h lvl f Th blk Mul-l f d dd f ub f vbl f h h bl h db. Th dul u h d bl f h Ol OM db bl h fllw l bl. Oh f bl uu, l f Th db dld d f [5]. Hy bl wh h d fl bl uu l h l R db, h dff ddd B_bb fld. N N_C Ky Ty N Null B_bb Ch v Nub(10) u TABLE II ST_LSZ (HISTORY ATABASE LAN SAMPLES TABLE) N N_ Ky Ty N Null Z_I Ld I_Cd Tu Nub(10) Tu YS_M Fu d h(5) SZ_JF Nhbhd vh2(15) Tu I Z_ZH Ld_ky Nub(10) Tu Th ly hbhd Z_FH Ld_B_ub Nub(10) Tu Th l ld z HQ_RQ G d ATE SJ_BZ Rk vh2(100) - 8 -

3 Cu If S d M E Nv. 2012, Vl. 2 I. 11, PP BG_BB Ch v Nub(10) TABLE III ST_LSFZ (HISTORY S_LAN GRAPHIC SAMPLES TABLE) N N_ Ky Ty N Null FZ_I Sub_Ld I_Cd u Nub(10) u Z_I Ld I_Cd Nub(10) FZZH Sub_Ld_ky Nub(10) FZFH Sub_Ld_B_ub Nub(10) BG_BB Ch v Nub(10). P Alh Mul-l ly hvd huh h AO f IFuLyf2 l h dly f h ly. Ph vwd w wy: f h u vw fw f h f h d; h h l h h u R db d. O h f h, h fld b dly ud wh d dly hv, x huh h SQL lu db. Sf x: "bjd (l bjd f " & CN & " wh ='" & SlT & "')" F h d vw d, h f lh fllw: F,w d vl huh h ld ly ( l), h d h bu h d ly. N d h f h d wll b d. Th,h d fld f "RECEIVE_ATE" (I l d h d h d v fld.)wll b d hll d Th l, bd l bl f d h h f f h l h h, h wll ly h hv w h d.. C x fllw: "bjd = (l bjd f" & vbnwl & _ "(l.bjd, b.v_d,k()" & vbnwl & _ "v( by.,.lu d by b.v_d d) d" & vbnwl & _ "f " & CN & ", b" & vbnwl & _ "wh. = b." & vbnwl & _ "d b.l_ = 1) 2" & vbnwl & _ "wh" & CN &".bjd=2.bjd d 2.d = 1)" E. P Cd h db, d h h f h db l bl d dlyd vu fld; O h h u f l dd l h, vd dly f h h h; S dly ul h d dly h l h f h. F. Mul-Tl M Sub_If Fu 4 Mul-l M F - 9 -

4 Cu If S d M E Nv. 2012, Vl. 2 I. 11, PP G. Wdw Ovvw I y ul-l f f f, h f : fmult If l N Cl Ty Exl Ch vw h h OCh(0) OBu u vw ul h Shw h l h OCh(1) OBu Th l h f h u dly h h l GdT Gd Ch vw h h f dok xbu f l dcl xbu l H. S Fu l / bu A (v Fu Fu Vw d bu Clk l OCh_Clk Sl Vw Md Vw h Clk l bx Ch vw h h "OK" bu Clk dok_clk Vw ul-l d "Cl" bu Clk dcl_clk Cld hk I. U P d uby, ld d h ly; Clk h u Fl Mul-l, f Mul-l f; Sl Vw d, h, h vw h h Vw h l h. f yu h h f, wh u w lv k h l bx, lk OK vw; f yu l h d, ly lk OK vw. J. Iu d Ouu Iu: Abu h f f AO db. uu: Abu h fld vlu f dvdul bl h db. K. E Hdl E d Cu f h E hdl d I2403 Iu d y u M h u - yu E2405 Byd h xu f d Aully u h d f h xu

5 Cu If S d M E Nv. 2012, Vl. 2 I. 11, PP IV. I2404 CONCLUSION Ay l ld R d uu l, uv, d duv u d, d ly ud -bd GIS d f. Th Mul-l d dff f h u f, h d, uully fl wh fu. Suh v ly f yh dvl, qu 12 hu vl d u 10 dy f Mul-l ll ; lyz h d x f df, ju dff y f Mul-l d b [6]. Th du h GIS Mul-l f d, u ub- hk, b f l d ffl wy h Mul-l d. Ad bd h Ol 10 bk-d db, bd h AGIS lf u VB. f dy dvl, d d dvl f h y f Mul-l R db dul, l, v, ff f Mul-l d, bu l h d h vlu j f ul hy, h v d u l f dy d ffv. ACKNOWLEGMENT Thk h hl f bu h uh w h, d l hk Pf R T Huzh Uvy f d hly, Ch Uvy f G Pf Wu X ud d hl. REFERENCES [1] Wu X. Pl d hd f Gh If Sy(Sd Ed). Bj: Publh Hu f El Iduy, (I Ch). [2] P. Mv lu d bd AGIS -GIS udd h w f hu.2010 E Ch U Cf (I Ch). l bx h u hk ld l [4] M W, Ju P. Mul-l d blk d f. "Suvy d M d E", [5] P Byu, j L, F Cu u. Lz ub d ul dl f y [A]; Shd Pv "dl y" Syu [C]; 2007 (I Ch). [6] F ju,l Yhu,Sh J,Pu Tx.R dy f ld-u ul-l d, Wuh Uvy (E S).2003, Juj Zhu, , l, Huzh Uvy f S d Thly Whu Cll Th "dul fl l y "h(lu, ), 2004 u l hly fl ' d, h h lud h (wl) wk y d d, f y dvl. S 2003, h uh uvly wk Hu Aulul Bd d Tlv Uvy, Huzh Uvy f S d Thly Iduy Gu C, Huzh Uvy f S d Thly Whu Cll, uly v h lby d f Cu S d Thly.I h wk, lud h u f "Cu wk d l", "Pl d hd f Gh If Sy". Th uh h w h xbk wk y d d ul "; w w xl hdu; 6 EI / ISTP jul / l f hv ublhd; bl f w v h j d hl y du f u, w h vl d hly hv l, vl ll fuly wd. Nly 10-y hh d h ll xd, h uh h hld u CCF b f h Ch Cu Fd, h Ch Nl Iu f Oul Skll T C (Hub ) wk hly vlu ff, h My f If Iduy Cu If Sy I f j,am64-b v f,s-wk Ruj y h RCSE wk, NIIT (Id Iu f If Thly) GNIIT d NPlu fd. [3] "AGIS" Bdu Wkd f h, h://bk.bdu./vw/ h#