Video surveillance system with CCTV
‘Closed circuit television’ is what CCTV stands for. It functions fundamentally as a video surveillance system, with the main purpose being the control and observation of a certain area.
CCTV video surveillance systems are now practically a necessary service for both home and business use. Many businesses now have the chance to enhance their security and competitiveness with new products and more reasonably priced security cameras thanks to technological advancements.
There are four things to think about while selecting CCTV cameras:
When selecting the right CCTV cameras, there are a number of aspects to take into account, regardless of whether you want to install a CCTV video surveillance system at your home or place of business. Before choosing the cameras that best fit your demands, you may take into account the following important factors:
1. Lens
Lens Diameters
It’s easy to understand lens sizes: the larger the region you can see, the smaller the size in millimeters. For instance, a 2.8mm lens will give you a wide perspective of a sizable space, such as an outdoor parking lot, and allow you to see all normal activities, including any questionable behavior. On the other hand, an 8mm lens will allow you to observe a specific area, such as a cashier counter, and identify any suspicious behavior. You may select fixed or vari-focal lenses once you have a clear notion of which size would work best for your needs.
Lenses: Fixed and Vari-focal
Because they offer a broad perspective of the space, fixed lenses are frequently utilized inside. They may also be used outside, though, if you would rather have a wide perspective than pay close attention to little details. In contrast, varifocal lenses are frequently employed outside due to their ability to shift focus and zoom (within a range) for the purpose of capturing certain details.
In conclusion, installing a vari-focal lens CCTV camera in the same warehouse will give you the flexibility to adjust the field of focus to view either the general activity or get a clearer image of a specific area. However, installing a fixed lens CCTV camera in a warehouse will limit your options to a fixed area of focus, such as general activity or specific close-up.
In order to meet the needs of your site, IRoyal Tech provides both fixed and vari-focal lenses in a variety of sizes.
2. Sensor
The sensors that come with different CCTV cameras have varying capacities. The two primary sensor types utilized in CCTV are CCD and CMOS. Comparing CMOS to CCD, CMOS is less expensive and requires less power. However, CCD outperforms CMOS in terms of sensitivity and clarity of picture, which might be crucial for cameras used for identification. In actuality, more signal processing is needed for CMOS-based to provide crisp pictures. Another crucial element is the sensor’s size. The quality of the image produced by a sensor increases with its size. The two most common sizes of CCTV cameras are ¼ inch and 1/3 inch. 1/3 inch is 4.8 mm by 3.6 mm, while ¼ inch is 3.2 mm by 2.4 mm. The surface area of larger sensors is double that of smaller ones. Greater light gathering capacity from large sensors allows DSP to handle more data.
3. Resolution of Output:
HD vs. Megapixel
One may think of HD as a subset of megapixels. HD is characterized by particular aspect ratios, frame rates, and resolutions. A megapixel camera is, by definition, any camera that has a resolution of more than one million pixels. Security cameras are now available with resolutions as high as 10 megapixels (3,648 x 2,752 pixels), while the lowest resolution in the megapixel range in the security market is around 1.3 megapixels, which gives 1280 x 1024-pixel resolution (or 1.3 million pixels). The megapixel camera lineup keeps growing to meet the needs of many applications.
HD cameras are defined as having a standard resolution of either 1080p or 720p. The horizontal resolution is indicated by the digits 720 and 1080. Consequently, pictures captured by 720p HD cameras have a resolution of 1280 x 720 pixels, which is equivalent to 921,600 pixels. This implies that a 720p HD camera is not a megapixel camera. On the other hand, 1080p HD cameras have a resolution of 1920 x 1080 pixels, or 2.1 megapixels.
From 720p to 8 megapixels, IRoyal Tech has a broad selection of cameras. Clients typically choose 2 megapixel cameras for homes, small workplaces, or retail spaces since the image quality is good enough for these types of settings. Clients may need better resolution cameras for sensitive and high-security areas. Please get in touch with us if you would like example photos of the picture output quality.
4. CCTV Camera Types:
The security industry nowadays offers a wide variety of CCTV camera types. The most common varieties of CCTV cameras are the bullet, dome, turret, PTZ, and discrete camera kinds. Every kind of camera has advantages and disadvantages in addition to varying features and functionalities. The goal and setting of your application will determine the best kind of camera to utilize in your security system.