Solution
Nowadays, the demand for using the camera to observe directly, backup images is increasing, especially at buildings, factories.
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Camera system diagram
Currently, on the market there are two types of popular cameras are dome camera and bullet camera. The selection of the camera type depends on the installation location to suit the aesthetics. The dome camera is usually installed in the room, in the house because of its beautiful, lightweight and compact design. It is suitable for most decorative widgets and has a higher aesthetic. Bullet cameras are often designed to be placed outside.
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Dome camera Bullet camera
What is an IP Camera?
An Internet Protocol Camera, commonly referred to as an IP camera, is a digital video camera much like a webcam, which transmits and receives data over a network or the internet. Unlike an ordinary webcam it is a standalone unit with its own IP address that requires nothing more than a network connection in order to transfer images. The IP camera connects to a network in exactly the same way as any other standard network device such as a laptop, tablet or printer.
What is an Analog Camera?
Analog Cameras use CCD sensor to receive images, then the images are digitized for processing. However, before you can retrieve the image it must be converted into analog signals, and then transmit the analog signal receiving equipment such as televisions, recorders… can watch.
When should we install analog cameras vs IP cameras?
Video quality
IP cameras provide overall higher video quality than analogue cameras. They offer more video site ranges, such as a wide or narrow field of view, and better zoom-in capabilities. And because they transmit truly digital signals, they offer far greater video detail, which makes them much better for facial recognition or detecting license plate numbers.
Analogue cameras have overall lower quality than IP cameras, but perform better in low light conditions. Analogue cameras have more limited site ranges and don’t offer the zoom-in clarity of IP cameras. If you zoom in on the analogue images, you’re going to get a grainier, degraded picture. It’s not like what you see on TV cop shows. If you’re using an analogue camera, you’re not going to recognise the perpetrators face by zooming in.
Resolution
Generally, digital cameras provide resolutions 6 to 20 times higher than analogue cameras.
Analogue cameras are limited to resolutions of the NTSC/PAL standard of 720 x 480 pixels (NTSC)/575 (PAL) or 0.4 megapixels (4CIF). Analogue camera resolutions range from 420 to 700; which at the high end can produce sharp images.
IP cameras offer resolutions that can range from 1.3 megapixels to 5 megapixels (2560 x 1920) of compressed, encoded transmissions. This gives you the ability to cover a far wider viewing area or to get far more detailed pictures in narrow, zoom-in viewing areas.
Transmission media
Traditional analogue cameras operate over coax cable. They can also work over, twisted-pair cable or with wireless connections, but that produces less resolution.
IP cameras also work over twisted-pair, coax cable, and with wireless connections.
PoE capabilities
One of the advantages of IP cameras is that they can be powered over the twisted-pair Ethernet cable, thus eliminating worries over running electrical wire.
Older analogue cameras can not be PoE powered.
Wireless
Wireless IP camera network connections can be a very practical solution in areas where it’s too difficult or expensive to run cable. Wireless can also be used in buildings where it’s impractical or impossible to run cable, such as in historical buildings.
Distance
Analogue cameras can send video over twisted-pair cable up to 1.5 kilometers away and up to 300 metres away over coax cable. But analogue transmissions lose clarity with increased distance and when the signal is converted from one format to another.
IP cameras can send digital video 100 meters over twisted-pair Ethernet cable and unlimited distances over IP networks. Because the images are digital, they maintain 100% of their clarity over long distances and when the signal is converted between different formats.
An Internet Protocol Camera, commonly referred to as an IP camera, is a digital video camera much like a webcam, which transmits and receives data over a network or the internet. Unlike an ordinary webcam it is a standalone unit with its own IP address that requires nothing more than a network connection in order to transfer images. The IP camera connects to a network in exactly the same way as any other standard network device such as a laptop, tablet or printer.
What is an Analog Camera?
Analog Cameras use CCD sensor to receive images, then the images are digitized for processing. However, before you can retrieve the image it must be converted into analog signals, and then transmit the analog signal receiving equipment such as televisions, recorders… can watch.
When should we install analog cameras vs IP cameras?
Video quality
IP cameras provide overall higher video quality than analogue cameras. They offer more video site ranges, such as a wide or narrow field of view, and better zoom-in capabilities. And because they transmit truly digital signals, they offer far greater video detail, which makes them much better for facial recognition or detecting license plate numbers.
Analogue cameras have overall lower quality than IP cameras, but perform better in low light conditions. Analogue cameras have more limited site ranges and don’t offer the zoom-in clarity of IP cameras. If you zoom in on the analogue images, you’re going to get a grainier, degraded picture. It’s not like what you see on TV cop shows. If you’re using an analogue camera, you’re not going to recognise the perpetrators face by zooming in.
Resolution
Generally, digital cameras provide resolutions 6 to 20 times higher than analogue cameras.
Analogue cameras are limited to resolutions of the NTSC/PAL standard of 720 x 480 pixels (NTSC)/575 (PAL) or 0.4 megapixels (4CIF). Analogue camera resolutions range from 420 to 700; which at the high end can produce sharp images.
IP cameras offer resolutions that can range from 1.3 megapixels to 5 megapixels (2560 x 1920) of compressed, encoded transmissions. This gives you the ability to cover a far wider viewing area or to get far more detailed pictures in narrow, zoom-in viewing areas.
Transmission media
Traditional analogue cameras operate over coax cable. They can also work over, twisted-pair cable or with wireless connections, but that produces less resolution.
IP cameras also work over twisted-pair, coax cable, and with wireless connections.
PoE capabilities
One of the advantages of IP cameras is that they can be powered over the twisted-pair Ethernet cable, thus eliminating worries over running electrical wire.
Older analogue cameras can not be PoE powered.
Wireless
Wireless IP camera network connections can be a very practical solution in areas where it’s too difficult or expensive to run cable. Wireless can also be used in buildings where it’s impractical or impossible to run cable, such as in historical buildings.
Distance
Analogue cameras can send video over twisted-pair cable up to 1.5 kilometers away and up to 300 metres away over coax cable. But analogue transmissions lose clarity with increased distance and when the signal is converted from one format to another.
IP cameras can send digital video 100 meters over twisted-pair Ethernet cable and unlimited distances over IP networks. Because the images are digital, they maintain 100% of their clarity over long distances and when the signal is converted between different formats.
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