Surveillance camera brand and purchase

The current camera equipment has a wide range of brands and applications. However, most users who need to install surveillance cameras have little knowledge of surveillance cameras. In the end, what brand of surveillance camera is better? How to buy?

1: The choice of camera appearance The gun camera is suitable for all monitoring occasions 1/2" CCD is suitable for arranging large magnification, long focal length lens, large surveillance range, high outdoor quality 1/3 Smaller CCDs are suitable for higher image quality requirements. In the case of fixed-focus lenses or conventional zoom lenses, integrated cameras (including pan/tilt-equipped all-in-ones) are suitable for general image quality requirements and have a smaller monitoring range. When the project investment is small, indoor/outdoor hemispherical cameras can be used for indoor concealed installation. Image quality requirements are not high. For the purpose of aesthetics and concealed installation, smart domes are suitable for indoor/outdoor environments. , Pay more attention to the convenience of the overall use of the camera equipment and the appearance of concealed installation, image quality requirements generally other special-shaped cameras (smoke, pinhole, UFO, etc.) suitable for indoor environments with special installation requirements 2: photo The definition of the camera type color camera is suitable for a relatively adequate light environment. The black-and-white camera is suitable for all monitoring environments, especially the environment with low illumination, and can cooperate with infrared Helps lighting equipment to achieve night-time surveillance Color to black and white (monochrome) cameras are suitable for large variations in light, day and night surveillance images require a higher occasion 3CCD color camera is suitable for investment, image quality requirements are high Occasion 3: Determining the resolution of camera indicators 450 to 480 lines (color) 560 lines (black and white) High definition, high image quality requirements 330 lines to 420 lines (color) 380 lines (black and white) Normal definition, Low requirements for image quality Sensitivity 0.1lux (color) 0.01lux (black and white) Low illuminance, suitable for low light monitoring applications 2lux (color) 0.1lux (black and white) Conventional super light, suitable for adequate light, no nighttime surveillance requirements High occasions Electronic shutter auto/manual Can be extended with lens Camera range of sensitivity AGC Can be combined with lens extension Camera sensitivity range Backlight compensation Auto or menu setting Suitable for fixed monitoring point Backlighted monitoring environment Signal to noise ratio 48dB or higher Quality, suitable for dark scenes 45-48dB Normal quality, suitable for a well-lit or slightly variable environment White Balance ATW Suitable for scenery Color temperature is constantly changing during shooting. ACW Suitable for situations where white reference targets can be found. Strong light suppression Suitable for situations where intense light with high contrast is frequently observed. Power supply AC220V or AC24V/DC12V Can be configured according to other front-end equipment Choose to use low-voltage power supply cameras when special requirements require the use of safe voltage