DVR ü
̵ 1997 Ǿ 2001 ڽ 忡 DVR ü̴. ؿ 꽺 200 ߰߱ Ǵ ǰ° ް ִ. ̵ ϴ 90% ؿܷ ǰ ִ. 70% Ʈнý ߰ tyco ODM ǰǰ , ڿ ϰ ִ. , ؽý ODM 60%, 븮 ǸŰ 40% ϰ ִ.
Ȼ 1970 溸 CCTV ī Ǿ. ʱ , , δ븦 Ͽ, 1980~1990뿡 Ǽ ȣȲ Ҿ Ͽ. 2000뿡 ü ο ȱ ȮǸ鼭 15~20% ŵϰ ִ. ݵ ҾȰ ȸ ҾȰ, ̾ , ܼÿ պȽý ϰ ִ.
̵ ϴ DVR(Digital Video Recorder) CCTVκ з ȯ ó ϵũ , ϴ ý̴. 1999 Ǿ 2000 Ͼ ߴ. Ƴα VCR tape ȯ̳ ȭȭ , ˻, ȭ , , Ź ̱ VCR DVR üǴ ̴. DVR ó CCTV ġ ü ó̸, ֱ ˿, , űԼ䵵 Ȱ ̴.
DVR ü 100 ̸ Ǹ, ɰ 鿡 ü پ Ǵܵȴ. 2005 DVR Ը 嵵 600 Ǹ, ü 귮 2000 ȸ ȴ. Ը 2004 1, 2005 1 3õ ȴ. 캸, VCR 70: DVR 30 ̸, 2010濡 DVR ü ȴ. DVR ü 30% ̸, 忩 ũ.
̵ ַϰ ִ ؿܽ忡 Ϻü Ƴα ô뿡 ̸, ̱ Ⱦü ߽ ǰ Ⱓ ƿҽ ǰǸ äϰ ִ. Ƚ DVR ü ۵ǰ ִ. , ߱, ߳, ߵ ̰ô ϰ ִ Ȳ̴.
DVR Ҵ ΰ?
1)
Ƴα ȣ з , ϴ ӵ, ˻ ٽ̴. ̵ Multi-Layer JPEG Ͽ frame 2~3kb 뷮ε ȭ äϰ ִ. оߴ ӵ , ̵ Ź ִٰ ƴ. ̵ ٽ ƴϴ.
2) ý
Ư Ϸ 24ð, 1 365 ۵ص ý Ǿ Ѵ. κ Ͽ õǴ ̰, Ⱦü ̵ ǰ 簡 ִ. ǰ spec Ƶ ٴ ִ. Spec PC PC ϸ ǰڴ. ̵ ̷ ǰ 40 ߺ ϰ ִ.
3) Ǽ
DVR 䱸Ǹ鼭 ȴ. ̵ ʷ GUI(Graphic User Interface) Ͽ, ȸ ̵ GUI ġũ ϰ ִ.
̵ Ȯ 3 DVRĿ ڸ, High End ü ް ִ. Ϲ 13% ϰ ִµ, ڷδ Kalatel(̱), Dedicated Micro() , 14%. 13% ִ.
ü High End 3ϰ ִµ, spec̶ Low End ǰ 2.5 Ǿ ִ. Ƚ ݻ Quality Ǵ ̴. ౸ 100 ٰ Ǽ ص ϴ Ͱ ̴.
Ϻ ʿ䰡 ִ ڴ ݿ а ۿ . , ǰ High End 忡 ġ , ٸ и ̴.
30 line-up
DVR üֱ Ϲ 4̶ ˷ ִ. HDD 10̶ , 3~4 ̴. ٳ PC 1 ۵ؾ ϹǷ, ȸ ϴ HDD δ ũ. 2004 ̵ 8% . DVR ۾ü 2,000 Ը 25% ϰ ִ.
ִ. ǰ Ư ڿ Ǹ, ġ 谡 ſ Ͽ ó 踦 α 쳪, 踦 ӵǴ ִ. ǰ ٸ, ȣ ŷڰ ߿ϸ, A/S(Ʈ ̵ ) ؾ ϱ ̴.
ֿ ó Ȯϰ ִ Tyco, Honeywell Ǹ, űԷ Ȯ ེ ̴. , 쿡 оߺ 1~2 ü(, ؽý) ؿܽ忡 10 ̳ ü 踦 ϴ ִ.
DVRǰ PC-based ǰ(IDR) Stand-aloneǰ(ADR:Advanced Digital Recorder) еǾ ִ Ȳ̴. PC based ǰ ɰ ÷ network 䱸ϴ Ը project ֿ ̸, Stand-alone ǰ VCR ϴϷ ü ϰ ִ. Stand Alone , ӵ GUI IDR ø, network ȭ DVR XDR ǰ ߰Ǿ 30 line-up ϰ ִ.
DVR ü 30% ؿ Ұ
DVR ̴. Ϲ , DVR ü 30% ؿ Ұϴ. , ̾ ũ. ġ Ҿ ߳ 쿡 Ϻ ϴ. ū 帧 , ϰ ִ ȯ ̸, 2004 1б ֿߴٴ м ִ. ؿ 2006 Ͽ 䰡 Ǹ. ̿ Ǹ ȴ.
ϹݼҺ Ͽ 캸, ξ ũ, 귣 ̹ ̵ ǰ Ϲ Һ 忡 嵵 ȴ.
ũ
̵ ũ ̳ ȭ, ͷ Ѽ, 强ü ̴. ֱ ü ް ִٴ , ǰ ÷ ͷ ϴٴ , µϰ ִٴ ̷ ũ ҽش.
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