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What is CCTV.......?
• Closed Circuit Television (CCTV) is the use of video cameras to transmit a signal to a specific place on a limited set of monitors.
• It differs from broadcast television in that the signal is not openly transmitted though it may employ point to point , point to multipoint or mesh wireless links.
University College of Jaffna.
Why Use CCTV...?
• Reduce Cost and Risk.
• Prevent and Deter Crime.
• Fool-Proof Coverage.
• Reduce Property Insurance Premiums. • Increase Customer's confidence.
• Easy to implement.
• Keep Your Employees Honest.
• Encourage Good Behavior.
• Prevent Safety Incidents.
University College of Jaffna.
Elements of CCTV system.
• Camera
• Lens
• Monitor unit
• DVR / NVR
• Cable (Coaxial / Ethernet) • Storage devices
• DC power supply (12V)
Simple CCTV System
University College of Jaffna.
Types of CCTV Systems
• Analog CCTV system
• Analog security cameras capture an analog video signal and transfer that signal over coax cable to the Digital Video Recorder (DVR). Each camera may be powered by plugging in the power supply right at the camera or by using RG59 Siamese cable which bundles the video and the power cables.
• Requires an DVR to capture image • Digital / IP CCTV system
• IP stands for Internet Protocol, and basically refers to a digital video camera that can send and receive data via a computer network.
• Requires a NVR to capture image.
University College of Jaffna.
CCTV System’s block Diagram
Do Drive thay đổi chính sách, nên một số link cũ yêu cầu duyệt download. các bạn chỉ cần làm theo hướng dẫn.
Password giải nén nếu cần: ket-noi.com | Bấm trực tiếp vào Link để tải:
What is CCTV.......?
• Closed Circuit Television (CCTV) is the use of video cameras to transmit a signal to a specific place on a limited set of monitors.
• It differs from broadcast television in that the signal is not openly transmitted though it may employ point to point , point to multipoint or mesh wireless links.
University College of Jaffna.
Why Use CCTV...?
• Reduce Cost and Risk.
• Prevent and Deter Crime.
• Fool-Proof Coverage.
• Reduce Property Insurance Premiums. • Increase Customer's confidence.
• Easy to implement.
• Keep Your Employees Honest.
• Encourage Good Behavior.
• Prevent Safety Incidents.
University College of Jaffna.
Elements of CCTV system.
• Camera
• Lens
• Monitor unit
• DVR / NVR
• Cable (Coaxial / Ethernet) • Storage devices
• DC power supply (12V)
Simple CCTV System
University College of Jaffna.
Types of CCTV Systems
• Analog CCTV system
• Analog security cameras capture an analog video signal and transfer that signal over coax cable to the Digital Video Recorder (DVR). Each camera may be powered by plugging in the power supply right at the camera or by using RG59 Siamese cable which bundles the video and the power cables.
• Requires an DVR to capture image • Digital / IP CCTV system
• IP stands for Internet Protocol, and basically refers to a digital video camera that can send and receive data via a computer network.
• Requires a NVR to capture image.
University College of Jaffna.
CCTV System’s block Diagram
Do Drive thay đổi chính sách, nên một số link cũ yêu cầu duyệt download. các bạn chỉ cần làm theo hướng dẫn.
Password giải nén nếu cần: ket-noi.com | Bấm trực tiếp vào Link để tải:
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