About Us
Ravi Solutions is a global IT solutions company based in Bhilai Chhattisgarh, India. We are a team of young and passionate professionals who have provided its clientele a new definition in the field of web by delivering aesthetic and classy web solutions. Ravi Solutions is an absolute package for those looking to be distinct from the rest. We believe in being leaders rather than followers. Within a short span of time since we have stepped into the competitive web industry, we have left our traces through our competencies, methodologies and business ethics. 'Changing Trends, Distinct Designs' has always been our motto and therefore with differentiation, innovation and swift customer response we have been able to achieve unparalleled success.
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CCTV Camera Installation
One of the most common differences between cameras is the resolution offered. Camera resolution is measured by the number of horizontal lines the camera chip produces. It is re-ferred to as TV lines or TVL. The more lines of resolution, the higher the image quality. Stan-dard quality is from 380TVL to 420TVL. High quality is from 420TVL to 480TVL. Very high quality is anything above 480TVL.Cameras are available with a wide range of features such as infrared technology, weather-proof housing, vandal proof housing, and various mounting options.
Lux is the SI unit of luminous emittance used in photometry as a measure of the apparent intensity of light hitting or passing through a surface. IR cameras have a 0 lux rating as they illuminate in total darkness. Some cameras are known as Day/Night and have very low lux ratings indicating it needs only a small amount of light to capture images in darkness. The chart below is an example of how much light is produced from certain sources measured in lux. If a camera has a lux rating of 0.1 and gets light equivalent to that of a full moon, it will be able to produce an image.
InfraRed Technology
Infrared technology (IR) refers to the cameras ability to capture images in total darkness. Cameras featuring IR product color images during daylight and switch to black and white at night. When choosing this feature, you will want an accurate measure of the distance you need illuminated at night. Some cameras are equipped with more IR lights than others and therefore are capable of producing longer range images at night.
DVR (Digital Video Recorders)
A digital video recorder (DVR) is the central component in any CCTV system. It is necessary to record the video from any camera. There are two main types, standalone DVRs and PC based DVRs. Standalone DVRs have been the most widely used but PC based DVRs are becoming increasingly more popular with their upgrade flexibility and decreasing costs.