Hệ thống điều khiển đèn giao thông thông minh

CONG NGHE - GIAI PHAP<br /> <br /> <br /> <br /> <br /> HETHONG DIEU KHIEN<br /> 0 £ N GIAO THONG THONG MINH<br /> ThS. Ha Dure Long,<br /> <br /> Minh Loc<br /> <br /> 1. G I O I THIEU<br /> <br /> Hien nay, tren thd gidi, nhieu qudc gia phat phuang phap nao dd de dua ra mdt he thdng cd<br /> trien da img dung he thdng giao thdng thdng mmh nhung chiic nang dii de dua vao thuc te, cd the tnen<br /> (Intelligent Transportatton System - ITS). He thdng khai trong pham vi mdt thanh phd vira va nhd la<br /> nay la mdt "sieu he thdng" vdi ddy dii cac thanh cdn thief.<br /> phdn nhu phan cimg, phdn mem, dfi lieu, quy trinh Dac diem cua he thdng:<br /> va con ngudi dupc hen ket chat che vdi nhau nhdm - Cho phep quan Iy he thdng den giao thdng trong<br /> giam thieu tai nan giao thdng, tranh un tdc, gidm d khu vuc bdng phdn mem, va v^eb cd giao dien de<br /> nhidm mdi tmdng, tang hieu qua van chuyen, tao dimg, true quan.<br /> dieu Men thuan lpi tdi da cho di lai...<br /> - Cho phep xem thdng tin dudng tdc tren<br /> ITS la mdt giai phap img dung ket hop nhieu website.<br /> linh vuc cdng nghe cao dang phat trien manh me - Cdng nghe tmyen ttn hien tren 3G/WiMax/Witi.<br /> trong thdi gian gan day nhu he thdng dinh vi toan<br /> - Cd tich hop camera, phan tich hmh anh, tmyen<br /> cdu (GPS), he thdng thdng tin dia ly (GIS), co sd<br /> dfl Ueu (Database), WiMax (802.16), WiFi (802.11), hinh dnh ve tmng tam.<br /> GSM, 3G, ..w. - Cd kha nang phan tich luu luong phuong tien<br /> tham gia giao thdng.<br /> He thdng ITS da duoc trien khai tren nhidu nude<br /> phat tnen tren thd gidi, tuy nhien de xay dung mdt 2. CAC P H ^ Q N G A N T H I E T KE HE T H O N G<br /> he thdng thdng minh nhu vay can rat nhieu thdi D I E U KHIEN DEN GIAO THONG<br /> gian, tien ciia. Chinh vi le dd, nghien ciru ve mdt<br /> <br /> <br /> <br /> TAP CHI CNTT & TT KY 2 ( 2 . 2 0 1 1 )<br />  CONG NGHE - GIAI PHAP<br /> <br /> <br /> <br /> <br /> RS23<br /> <br /> <br /> <br /> <br /> Diet bl giao tiep<br /> <br /> <br /> <br /> Thielbi chip hand<br /> Ttiabchjphanh (NOI den gao Ihong)<br /> (Nutden giao thong]<br /> <br /> Thiet bl dieu khien<br /> ttiiel t>; 6eu khien den<br /> <br /> Thiet bl chap hand<br /> Ihel bl chap hanh (Nut d6n giao IhSng)<br /> (Niil den giao thong)<br /> <br /> <br /> Ttii^tbi chap hand<br /> Hi^bichiphanli (NOI den giao lh«ig)<br /> (NOI den gao Ih6ngj<br /> Thi^l b d i ^ khiln<br /> Ttiiel b d«(j i i h i ^ den<br /> lien RS4a5<br /> Tliiet bf chap hanh<br /> Tlietb chap hanh (Nui den gao Wng)<br /> INiildengaothJiogl<br /> <br /> <br /> <br /> Hinh 1 — Tong quan ve he thong dieu khien phan tan den giao thdng bang RS485<br /> <br /> <br /> He thong dieu l