Security Cameras Jargon: A Comprehensive List
Security Cameras Jargon: A Comprehensive List
When diving into the world of security cameras and surveillance systems, you'll encounter a variety of technical terms and jargon. Understanding these terms can help you make more informed decisions and get the most out of your security setup. Here's a comprehensive list of common security camera jargon:
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IP Camera (Internet Protocol Camera)
A type of digital video camera that receives and sends data via an IP network
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HD-CVI (High Definition Composite Video Interface)
A technology developed by Dahua that allows high-definition video to be transmitted over coaxial cables.
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HD-TVI (High Definition Transport Video Interface)
Another high-definition video transmission technology, similar to HD-CVI, but developed by other manufacturers.
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PoE (Power over Ethernet)
A technology that allows an Ethernet cable to carry electrical power, simplifying the installation of network devices like IP cameras.
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NVR (Network Video Recorder)
A device that records video data from IP cameras over a network.
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DVR (Digital Video Recorder)
A device that records video data from analog cameras, converting the analog signals into digital format.
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XVR (eXtended Video Recorder)
It is a type of digital video recorder (DVR) that offers extended compatibility with various camera technologies. Unlike traditional DVRs, which typically only support analog cameras, an XVR can handle multiple video formats, making it a highly adaptable and future-proof solution.
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Resolution
The amount of detail a camera can capture, typically measured in pixels (e.g., 1080p, 4K).
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2K resolution
In security cameras refers to a display resolution of **2560 x 1440 pixels**. This higher pixel count offers significantly better image clarity and detail compared to standard Full HD (1080p) cameras.
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4K resolution
In security cameras refers to a display resolution of **3840 x 2160 pixels**. This ultra-high-definition resolution offers four times the detail of Full HD (1080p) cameras.
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Frame Rate
The number of frames captured per second (fps). Higher frame rates result in smoother video.
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FOV (Field of View)
The extent of the observable area a camera can cover, usually measured in degrees.
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IR (Infrared)
Technology used for night vision, allowing cameras to capture images in low-light or no-light conditions.
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WDR (Wide Dynamic Range)
A feature that helps cameras handle varying light conditions, ensuring clear images in both bright and dark areas.
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PTZ (Pan-Tilt-Zoom)
A camera that can pan (move horizontally), tilt (move vertically), and zoom in/out, often controlled remotely.
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ONVIF (Open Network Video Interface Forum)
A global standard for the interface of IP-based security products, ensuring interoperability between devices. It ensures that devices from different manufacturers can work seamlessly together, providing flexibility and future-proofing for your surveillance system.
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H.264/H.265
Video compression standards that reduce the amount of bandwidth and storage needed for video files.
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Bitrate
The amount of data processed per unit of time in video streaming, affecting video quality and storage requirements.
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Smart Search
A feature that allows users to quickly locate specific events or objects within recorded footage.
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Motion Detection
Technology that detects movement within the camera's field of view and triggers recording or alerts.
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AI (Artificial Intelligence)
Advanced algorithms used for tasks like object detection, facial recognition, and behavior analysis.
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Cloud Storage
A service that allows video footage to be stored on remote servers, accessible via the internet.
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VMS (Video Management System)
Software that allows users to manage and control multiple cameras and NVRs, often offering advanced features like analytics.
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PoE Injector
A device that adds power to an Ethernet cable, allowing it to power a PoE device like an IP camera.
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PoE Switch
A network switch that provides both data and power to PoE-enabled devices.
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Bandwidth
The amount of data that can be transmitted over a network in a given amount of time, affecting video quality and performance.
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Latency
The delay between capturing an image and displaying or recording it, important for real-time monitoring.
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Codec
A device or software that compresses and decompresses digital video, affecting video quality and file size.
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Lux
A unit of measurement for light levels, indicating a camera's ability to capture images in low-light conditions.
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BLC (Backlight Compensation)
A feature that adjusts the exposure of the entire image to account for bright backgrounds.
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HLC (Highlight Compensation)
A feature that reduces the brightness of strong light sources to improve image quality.
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Privacy Masking
A feature that allows users to block out specific areas of the camera's field of view to protect privacy.
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Tamper Detection
Technology that alerts users if the camera is being tampered with, such as being moved or covered.
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