Owing to the development in information and communications technologies have improved the technology for high-speed transmission of massive data, which has changed closed-circuit television (CCTV) video transmission technology. In particular, digitization of the CCTV video format and streaming technology has made it possible to minimize transmission loss and integrate video transmission and camera control(pan/tilt). It has also become possible to provide additional services like remote emergency warning broadcasting with just Internet Protocol (IP). However, because of the structural problems of IP, these changes have also brought about the threat of hacking of CCTV monitoring systems. In this study, we propose a methode to optimize network management by examining cases of enhancement of operational efficiency and security by improving the structure of CCTV monitoring network.

ABSTRACT
 1. 서 론
 2. CCTV의 특징
  2.1 CCTV 설비의 특징
  2.2 CCTV 망의 전송특징
 3. 기존 네트워크 분석
  3.1 기존 CCTV 네트워크 구조분석
  3.2 망 관리체계 분석
 4. 네트워크 구조 및 보안 개선
  4.1 네트워크 구조개선
  4.2 네트워크 보안 개선
  4.3 네트워크 관리 개선
 5. 결 론
 References

• 박은철(한국수자원공사 정보관리처, Management Information System Dept, K-water) | Yeunchul Park
• 최현주(경남대학교 교양융합대학 MSC교육부, Department of Mathematics Science and Computer(MSC), Kyungnam University) | Hyunju Choi Corresponding author