IP cameras are also known as Internet protocol cameras and network cameras. This camera uses a local area network or an Internet connection to transmit and receive data. The picture in the camera can be viewed from anywhere in the world where a user can access the Internet. This type of a camera is usually used for the purposes of surveillance.
An IP camera can be considered as a camera and a computer combined into a single unit. The network camera contains a lens, a sensor for detecting images, processors and a memory unit. The processors process the images, compress the files, analyze the videos and do other networking operations. The memory stores the networking camera's program instructions and recorded video sequences.
How Does IP Camera Operate?
The manner in which the IP camera captures images is just like that of a digital camera. The difference lies in the point that this camera can compress the image and transmit it over the web. Instead of transmitting video over a cable, internet protocol cameras transmit digital video data over WiFi, USB, Ethernet, etc. The camera is connected directly to the network much like a scanner or a printer. Network cameras can be set up conveniently if a building already has a network in position. Everything that is required to transmit the images over the Internet/network is built into the computer.
Multiple network cameras can be set up and digital video data transmitted. Centralized camera can be used in such a case. This contains a program referred to as the network video recorder (NVR). The NVR can be used to store data from more than one camera and then view several cameras at the same time. It doesn't encode the multiple videos itself, but only stores the data and helps viewing of these files. The encoding is done by the individual decentralized network camera. The NVR software can be set up on specialized systems or on a preexisting computer. Some modern systems can accept both analogue and digital inputs.
The CCTV cameras follow many compression standards for sending the data over the web. The main challenge in sending digital video is compressing it in a way that too much bandwidth is not consumed during the transmission. A lower image quality or reduced frame rate can reduce the size of the files. The most typical compression standard that offers a reasonable trade-off is the h.264/MPEG-4.
In addition to a preexisting Internet address, a personal computer is required to configure the camera and a video device that is connected via the Internet for remote viewing. A dedicated NVR device or a PC for storing the NVR software is needed to record and store footage.
Benefits Of An IP Camera
A network camera can perform all the operations of a traditional analogue video recording system. It has the additional feature of having the capability to view the videos remotely. A network camera can be configured to transmit video over the IP network for live viewing. The recording can be done at request by the user or it can be scheduled for specific times of the day. They can be connected to other external devices such as sensors and relays.
As long as there is sufficient bandwidth, there is no need to buy any additional monitoring equipment. The are a number of applications of IP cameras, such as audio detection, video motion detection and surveillance.
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