IP cameras are also referred to as Internet protocol cameras and network cameras. This camera makes use of a local area network or an Internet connection to transmit and receive data. A user who has access to internet can view the picture from any where on the globe. This sort of a digital camera is typically used for purposes of surveillance.
To put in layman’s terms, an IP camera is a digital camera blended with a computer. The network camera features a lens, a sensor for detecting images, processors and a memory unit. The functions of the processors include processing of the image, compressing the data files, video analysis and other networking functions. The memory stores the networking camera’s program instructions and recorded video sequences.
How Does IP Camera Work?
The way the IP camera captures images is comparable to that of a digital camera. The difference lies in the fact that this camera can compress the image and transmit it over the web. The security cameras send digital video data over WiFi, USB, Ethernet, etc. instead of using a cable. The camera is linked directly to the network just as a scanner or a printer. If a building already has a network in place, network cameras can be quickly installed. Everything that is required to transmit the images over the Internet/network is built into the computer.
Several network cameras can be installed and digital video data transmitted. In this case, a centralized network camera may be used. This features a program known as the network video recorder (NVR). The NVR can be used to keep data from more than one camera and then view several cameras at the same time. It does not encode the multiple videos itself, but only stores the data and helps viewing of these data files. The encoding is performed by the individual decentralized network camera. NVR can be set up on an existing computer or a system can be dedicated for installing it. Many modern systems are made to accept both analogue and digital inputs.
There are a lot of compression standards that internet protocol cameras follow to transmit data over the web. The key problem in sending digital video is compressing it in a manner that too much bandwidth is not consumed during the transmission. A lower image quality or reduced frame rate can decrease the size of the data files. The most common compression standard that offers a reasonable trade-off is the h.264/MPEG-4.
In addition to an existing Internet address, a personal computer is needed 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 required to record and store footage.
Benefits Of IP Camera
A network camera can perform all the functions of a traditional analogue video recording system. It has the additional feature of being able to view the videos from another location. A network camera can be configured to transmit video over the IP network for live viewing. The recording can also be directed to take place continuously or at planned times and at request from users who are approved to do so. They can be connected to other external devices such as sensors and relays.
As long as there is enough bandwidth, there is no need to purchase any additional monitoring equipment. The are many applications of IP cameras, such as audio detection, video motion detection and surveillance.