#Acumen
How to choose cameras for a nightclub video surveillance system.
It is difficult to imagine any public facility without a video surveillance system now.
This is especially true for places with large crowds of people, which are obviously potentially dangerous objects.
Entertainment venues such as clubs and bars should be closely monitored due to the prevalence of illegal drug dealing in the lobby, pickpocketing and to ensure safety measures associated with the presence of a large number of people.
All these problems can be prevented with the help of surveillance cameras, and the rest in the club will be pleasant and safe for visitors.
Night clubs, discos are objects with a complex level of illumination: constantly changing lighting, strobe light, a large flow of people — all these parameters require a special approach when building a video surveillance system.
The healthy human eye, processing visual information, shows amazing results.
It constantly adjusts to changing lighting so that we can see what is in front of us both in the sun and in deep twilight.
The concept of «dynamic range» was introduced to describe this ability to adapt to different lighting and contrast conditions.
Dynamic range shows the difference between the smallest and largest amount of light at which the eye can distinguish objects.
The human eye has a very wide dynamic range!
In the world of video surveillance technology, video camera developers have long been trying to replicate the dynamic characteristics of the human eye.
In Acumen surveillance cameras, thanks to the wide dynamic range function, these characteristics tend to the maximum, you can get a balanced image, more detailed and clearer than what you usually get.
As if you were seeing everything with your own eyes. Acumen offers a wide range of cameras with a wide dynamic range, including: dome, high-speed, standard, IP cameras.
The use of a wide dynamic range will help solve the problems of complex lighting in a club environment.
Problems of video surveillance in a club:
Low light level
When building a video surveillance system in night clubs, bars and discos, low illumination levels create difficulties in obtaining high-quality video images.
Acumen cameras with a wide dynamic range — Ai-DC99, Ai-CD99, Ai-WD99 are capable of providing high image quality even under such difficult conditions, this is achieved primarily due to the high resolution of 700 TVL, as well as the day/night function, minimum sensitivity of 0.015 Lux/F1.2.
Noise level
To determine the quality of the image, there is a concept called «signal-to-noise ratio.
Noise cannot be avoided, but it can be minimized.
It mainly depends on the quality of the CCD matrix, electronics, and external electromagnetic influences. The metal body of the video camera largely protects against external electromagnetic influences.
The sources of noise inside the video camera are both passive and active components, so the «noise level» depends on their quality, the design of the system, and to a large extent on the temperature.
The Ai-WD67 wide dynamic range camera has a signal-to-noise ratio of over 52 dB, which can minimize noise levels.
Ultra-high contrast
The contrast between low-light areas and bright strobe lights is a big problem for standard CCTV equipment.
Acumen offers cameras with a wide dynamic range, which allows the camera to adapt to different lighting and contrast conditions.
With wide dynamic range, multiple frame displays occur — the camera captures several full images or individual areas of the frame.
Each «picture» displays a different area of the dynamic range.
The camera then combines these different images to produce a single image with an extended dynamic range.
Smoke
Smoke from smoke machines or cigarettes greatly reduces image contrast. Acumen cameras use automatic black level adjustment to restore contrast and improve image quality despite the smoke.
Lighting and conditions created in clubs and bars and designed to attract consumers often cause difficulties for conventional CCTV cameras, which provide good images under standard security conditions.
Acumen cameras' image processing technology allows you to provide the best possible image quality in difficult lighting conditions.
People come to entertainment venues, bars, nightclubs, restaurants to have fun, relax after a long working week, so a person should feel completely safe and comfortable. Thanks to the wide functionality of Acumen equipment, you can easily solve security problems in difficult lighting conditions. Acumen is your choice in favor of security.