Currently, the commercialization of the 5th Generation (5G) service is becoming more prevalent in domestic communication network technology. This has reduced communication delay time and enabled large-capacity data transmission and video streaming services in real-time. In order to keep pace with these developments, K-water has introduced a smart process control system in water purification plants to monitor the status of the water purification process. However, since wireless networks are based on the public Long Term Evolution (LTE) network, communication delay time remains high, and high-resolution video services are limited. This is because communication networks still have a closed structure due to expense and security issues. Therefore, with 5G in its current form, it is very difficult to accommodate future services without improving the infrastructure of its communication networks. In recognition of these problems, this study implemented the authentication and management function of wireless networks on a wired network management system in the K-water Bansong water purification plant. The results confirmed that wired Local Area Network (LAN) services give a higher security performance than an expensive commercial wireless LAN system. This was achieved by using an Internet Protocol (IP) address management system of wired networks and the packet filtering function of the Layer2 (L2) switch. This study also confirmed that it is possible to create a wireless LAN service that is 3.7 times faster than the existing LTE communication network.

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.

감꼭지나방의 온도별(15, 20, 25, 3)발육과 생식에 미치는 영향을 조사하였다. 알에서 성충까지의 발육기간은 2에서 96.1일, 에서 43.2일, 3에서 34.6일이 걸렸다. 15에서는 유충기간중 모두 사망하였다. 발육영점온도는 알, 유충, 번데기, 알~성충이 각각 12.2, 13.5, 13.8, 13.4였다. 유효적산온도는 알, 유충, 번데기, 알~성충이 각각 74.0, 331.3, 160.5, 569.9일도 이었다. 부화율, 용화율 및 우화율은 에서 가장 높았다. 산란전 기간과 성충수명은 2에서 12.6일과 29.3일이며, 에서는 3.8일과 8.6일, 3에서 2.5일과 7.0일이었다. 1세대에 요하는 평균기간(T)은 온도가 높아질수록 짧았으며, 순증식률(R )은 2와 3에서 낮았다. 내적자연증가율(r )은 에서 0.066로 가장 크게 나타내었다.

충북 영동의 감나무 가로수에서 감꼭지나방(Stathmopodamasinissa)을 태집하여 온도 , 광주기 16L:8D,상대습도 85%의 실내조건에서 이들의 발육생태를 조사하였다. 각 충태 별 발육일수는 알기간 7.4일, 유충기간 34.8일, 번데기기간이 15.5일이었다. 1령에서 5령의 영기간 은 각각 3.5일, 4.2일, 5.2일, 6.5일, 15.4일이었으며, 유충의 두폭은 각각 0.20, 0.40, 0.65, 0.87, 1.07mm이었다. 용화율과 우화율은 각각 68.0%, 59.9%이었다. 성충 수명은 수컷이 6.2일, 암컷이 10.1일이며, 암컷 한마리당 평균 산란수는 24.4개였다.