How do surveillance cameras work?

2024-04-15 23:50:48 作者:网络 footage cameras video surveillance sensors 来源:网络采集

Surveillance cameras work by utilizing a system of lenses, sensors, and processing units to capture and record video footage of a specific area. The basic components of a surveillance camera include a lens to capture the image, a sensor to convert the image into an electrical signal, and a processing unit to compress and store the footage.

When a surveillance camera is installed in a location, the lens focuses light onto the sensor, which converts the light into an electrical signal. This signal is then processed by the camera's processing unit, which compresses the video footage and saves it onto a storage device, such as a hard drive or cloud storage.

Surveillance cameras can be either analog or digital. Analog cameras transmit video footage over a coaxial cable to a recording device, while digital cameras convert the video footage into a digital format for easier storage and transmission over networks.

Many modern surveillance cameras also come equipped with additional features such as infrared sensors for night vision, motion detection sensors, and remote access capabilities for viewing footage on a computer or mobile device.

Overall, surveillance cameras work by capturing and recording video footage of a specific area, providing a valuable tool for monitoring and enhancing security in various settings.

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