Today there are a lot of functions of video surveillance cameras, first of all, it is connected with the fact that each manufacturer follows the path of continuous improvement of the characteristics of its products. Secondly, the same functions can be called differently from different manufacturers; in our case, you may also have a different translation since localization in India is usually the responsibility of the distributor. Thirdly, and this is the saddest thing. Many new functions are just marketing tricks, just new names for already existing functions. All this makes the task of correctly selecting an IP surveillance camera extremely difficult, even for a technically savvy person.
Error number 1. Expecting a CCTV camera of the same image quality as on a “TV”.
A prerequisite for this extremely widespread misconception is, in essence, the goal of a professional television or home camera, and a surveillance camera is a video recording. However, the differences are much greater than the similarities. Surveillance cameras are designed to work 24 hours a day, 365 days a year, for 10 years continuously.
Error number 2. The higher the resolution, the better the camera.
It is important not to replace concepts, for the purpose of Railway CCTV Projects; one of the most important tasks is to drill down the opportunity to review all the details. Naturally, resolution greatly influences the possibilities of detailing, but not only that, an increase in the number of megapixels is achieved by reducing the pixel size, which means that the surface that falls by one pixel will decrease, and therefore the photosensitivity as a whole will decrease.
Error number 3. The more photosensitivity, the better the camera.
Probably one of the most desirable, but also the most expensive feature, the slightest increase in photosensitivity entails a minimum of 30% increase in the cost of the camera. Trying to figure out and compare the values of photosensitivity, you will encounter a number of problems. In most cases, choosing cameras with high sensitivity, you overpay for artificially high values. One of the most reliable metrics of the real value of the photosensitivity is the size of the matrix; the larger the matrix size, the greater the sensitivity values.
Error number 4. Using only cameras ALL-IN-ONE
One of the latest marketing tweaks, which if you do not peer carefully sounds quite attractive. The advantages of ALL-IN-ONE cameras for Railway CCTV Projects include small dimensions, and quite wide functionality in a small all-weather package, and ease of transportation and installation. If you have a difficult exposure, if you need a powerful backlight, if the camera will work when the frost is much higher than -20 degrees Celsius, if you need a system of safe cold start, dry contacts. That ALL-IN-ONE is not your choice.
Error number 5. Save on outdoor cameras
The well- known truth – the miser pays twice, in the case of outdoor security cameras is not quite true, in the case of outdoor cameras, the mean will have to pay three or even four times. If outdoor cameras are a part of your IP surveillance system, pay special attention to the characteristics and choice of the manufacturer.
Surveillance cameras 