Analog CCTV System
Analog CCTV System has been in existence for many years and is commonly used in many application. Its attraction lies in the lower cost, the wide variety of cameras as well as the ease of implementation and usage. A typical Analog CCTV System comprises:
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AHD CCTV
is an Analog High Definition closed-circuit television video surveillance standard that uses coax cable to transmit HD video from security cameras to DVRs. AHD supports 720p and 1080p HD video resolutions which deliver 1.0 megapixel and 1.3 megapixel and 2.0 megapixel resolution.
is an Analog High Definition closed-circuit television video surveillance standard that uses coax cable to transmit HD video from security cameras to DVRs. AHD supports 720p and 1080p HD video resolutions which deliver 1.0 megapixel and 1.3 megapixel and 2.0 megapixel resolution.
IP CCTV
An IP Camera captures an image, digitized and transmit the data to the recorder using TCP/IP network cable. Because the signal is digital, there is no need for the encoding and the decoding at camera and recorder end that are inherent with analog system. The image is literally transmitted with no loss and distortion, resulting in a clean sharp image that we have come to expect in an IP System.
The IP System are also not restricted by the PAL standard which controls the receiving, the transmission and the recording. Hence there is really no limit to the resolution of the image. Hence it is not surprising to read specifications of IP Cameras of even 20 Mega Pixel. Thus it is no surprise that IP CCTV System is dominant where sharpness is critical.
IP Cameras are commonly deployed in large areas that are busy and crowded and there may be a need to make out and identify a person. So we see them in many public areas and public building. Its power lies in the ability to zoom in as shown in the picture beside.
An IP Camera captures an image, digitized and transmit the data to the recorder using TCP/IP network cable. Because the signal is digital, there is no need for the encoding and the decoding at camera and recorder end that are inherent with analog system. The image is literally transmitted with no loss and distortion, resulting in a clean sharp image that we have come to expect in an IP System.
The IP System are also not restricted by the PAL standard which controls the receiving, the transmission and the recording. Hence there is really no limit to the resolution of the image. Hence it is not surprising to read specifications of IP Cameras of even 20 Mega Pixel. Thus it is no surprise that IP CCTV System is dominant where sharpness is critical.
IP Cameras are commonly deployed in large areas that are busy and crowded and there may be a need to make out and identify a person. So we see them in many public areas and public building. Its power lies in the ability to zoom in as shown in the picture beside.
When Should We Use IP Cameras?
Studies suggests that for systems with less than 16 camera, analog system is cheaper. For system that require 16 - 32, they are equal. Beyond 32, IP-based systems are more cost effective. If your application require you to capture high resolution image for future detection and identification analysis such as monitoring of crowded train stations and road junctions, then an IP Camera with Megapixel capability would be the preferred solution. |
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CCTV Remove Surveillance
Cameras are fast becoming common place. They are now installed in homes, shops, businesses and office, acting as a deterrent to crimes as well as helping home and business owners to keep an eye on what is happening in their absence. The use of CCTV cameras in the home has extended beyong mere protection. to include remote supervision and monitoring of domestic helpers, young children as well as elderly relatives. CCTV cameras installed in the shop, while serves as a good deterrent to shoplifting, has been used to help management supervise and manage customer service standards. Now you can watch your premises using your laptop, your mobile phones or tabs, wherever you are, whenever you wish. Security and convenience at your finger tips.
Cameras are fast becoming common place. They are now installed in homes, shops, businesses and office, acting as a deterrent to crimes as well as helping home and business owners to keep an eye on what is happening in their absence. The use of CCTV cameras in the home has extended beyong mere protection. to include remote supervision and monitoring of domestic helpers, young children as well as elderly relatives. CCTV cameras installed in the shop, while serves as a good deterrent to shoplifting, has been used to help management supervise and manage customer service standards. Now you can watch your premises using your laptop, your mobile phones or tabs, wherever you are, whenever you wish. Security and convenience at your finger tips.