23-04-2014, 02:20 PM
STUDY OF IP BASED SURVEILLANCE CCTV SYSTEM IN RINL VISAKHAPATNAM
STUDY OF IP BASED SURVEILLANCE.docx (Size: 1.22 MB / Downloads: 9)
ABSTRACT
IP BASED CCTV SYSTEM IN VSP:
Visakhapatnam Steel Plant in presently using CCTV Systems in various shop floors for industrial applications security and surveillance, public information displays and for monitoring production processes.
VSP is also having a strong DATACOM NETWORK. This Network used for recording attendance, processing finance bills and recording production data. Through these systems some ongoing processes at a long distance with some hazards are monitored from the control room. This in the only online visual communication in plant i.e. why CCTV systems are so important in the shop floors. There is also an immediate need at VSP to increase vigil over the movement of people and vehicles near the plant gates in order to maintain discipline and peace.
These demands could not be met using conventional CCTV system because of the large distances involved. Wireless CCTV equipment could not be adapted due to presence of large structures in the line of sight. In order to meet the immediate requirement of gate monitoring without much delay and also to meet the growing CCTV demands the present project envisage a solution using the existing cable networks.
This project report involves study of both CCTV and cable network, implementation of these CCTV system using LAN networks that are available in the present day and finally coming out with a detailed presentation of the new system using LANs.
ABOUT VSP
Introduction to VSP
Visakhapatnam Steel Plant is the only shore based integrated steel plant in our country. The decision to set up an integrated steel plant at Visakhapatnam by the Government of India was taken in the Parliament on 17th April, 1970 and on 20th January, 1971, the then Prime Minister, Smt. Indira Gandhi laid the foundation stone fulfilling the long cherished dream of the people of Andhra Pradesh.
Visakhapatnam is a fast growing city and a railway junction station in the Eastern Ghats and the coast of Bay of Bengal. It is the district headquarters. Visakhapatnam is the home for several heavy industries in the Public Sector like BHPV, Hindustan Zinc, Hindustan Shipyard, HPCL etc. It also houses establishments like NSTL, Eastern Naval Command, NAD, Visakhapatnam Port Trust, Centre for naval architecture etc. Visakhapatnam Steel Plant is located 15 Kms to the South West of the Visakhapatnam Port. It lies between the Northern boundary of the National Highway No. 5 from Madras to Kolkotaa and 7 Kms to the South West of Howrah Madras railway line.
PROCESS COMMUNICATION SYSTEMS :
To facilitate coordination, operation & management activities of production, maintenance & service departments, the following process communication systems are provided :
a) Dispatcher Communication Systems :
Dispatcher communication systems are provided in Raw Materials Handling Plant (RMHP), Coke & Coal Chemicals Department (CCCP), Sinter Plant, Blast Furnace, Steel Melt Shop, Rolling Mills (i.e LMMM, WRM, MMSM), Thermal Power Plant (TPP), Energy Management Department (EMD), Water Management Department (WMD), Production Planning & Monitoring (PPM), Calcining & Refractory Materials Plants (CRMP) and Traffic Department.
Initially cordless switch board type manual exchanges of electromechanical version were provided. Since manufacture of such systems and their spares is discontinued in the country, these dispatcher systems are being replaced by Electronic exchanges progressively. Except the ones in CCCP other systems have been replaced. These would also be replaced very soon. Production coordination at plant level being conducted by ED (Works) with all HODs in the morning every day is facilitated with the help of the digital EXCOM system provided in the plant control room.
b) Loudspeaker intercom systems:
Loudspeaker intercom systems are working LMMM & WRM. These systems are used for communication between various sections of the same production shop. Communication is made possible using microphones and loudspeakers provided in the subscriber stations. This system is very useful in noisy environment where conventional telephones are ineffective. This system helps to establish communication between any two stations having interconnectivity on selection basis. By using group call facility it is possible to communicate to all the subscribers in the group at a time.
EXISTING CCTV SYSTEM IN VSP:
The simple system Is a camera connected directly to a monitor by a coaxial cable with the power for the camera being provided from the monitor. The camera generally mounted on a fixed platform or movable platform bear to the scene whereas the TV monitor is kept at the control room. There is an empirical cruel issued widely in CCTV system design that in order tyo distinguish a person a monitor, they must be at least 10% of the height of the screen. The camera converts the optical signal into electrical signal (composite video signal) and at the TV end the electrical signal reverts into optical(video) signal.
SUGGESTED SOLUTION WITH REASONS
The conventional CCTV systems at VISAKHAPATNAM STEEL PLANT use equipments that are of analog version. When these equipment are used for applications over long distances apart from the difficulties indicated in the earlier chapter some unwanted signals (noise) are added to the original signal during the process of transmission causing deterioration of picture quality. In order to over come this drawback it is suggested to use digital version equipment. Generally for transmission of digital signals OSI network is used. OSI network is already installed in the plant, for recording attendance, processing finance bills and recording production data and also in the marketing department. In this OSI network optical fiber cables are used. For extending the cameras / extension of monitors no additional cables / long line amplifiers etc are not required if OFCs are used. The proposed system envisages using OFC network for transmission of digital video signals based on LANs. Analog CCD cameras are not directly compatible to the LANs. LANs are compatible with only digital stream of signals. Hence in the proposed system LAN based CCD cameras are being suggested. Along with LAN based camera other accessories required are also to be used in the network. The accessories available in the market are depicted in the typical CCTV network.