Analog system and IP network system will be co-exist
The increasing demands for enterprise security and personal safety, as well as property's security, along with decades of evolve of video surveillance systems. The IP surveillance system stage is approaching. IP system will replace the traditional analog system and dominate the market is the inevitable trend for the video surveillance industry. How to move the system from traditional analog one to IP system, also keep the exist analog system ? We provide some tips in this article.
When and how to move the analog system to IP system is one of tough adversities for security integrates and dealers. They want to move to IP system without hesitation, but also with the tight budget, as well have to consider the expand of the life-span of exist system to cut the cost. With similarity to other technology, the IP system will replace the analog system gradually. The analog system and IP network system are co-exist in the market during this period.
Demands determine which system should be used.
Enterprises security specialists mainly consider whether the exist new IP camera can provide the requested quality image or not. There are different requirements for diversities of applications. Some applications may request the cameras provide high quality image when installed in low-illumination light condition. Others many only require the camera can provide the image of whole corridor. For many security projects that request provide high quality images are best to use the IP cameras. Mega-pixel IP camera can be used in every application ? As part of security plan, it can use the video encoder to convert analog signal to digital signal in the front-end of cameras. As a result, the new IP control room can manage the existing analog camera. The other option to cut budget is don't replace the exist analog equipment, combine the VMS software and control keyboard to manage the new IP equipment and installed analog system.
Transmission method choosing.
Coaxial cable, shielded twisted pair, unshielded twisted pair, fiber optic and other wireless can transmit the security video. Each of methods with the different advantages and disadvantages on the cost and maintenance fees. So, the new IP network camera can end the above mentioned analog transmission methods ?
Using the fiber optic to transmit the analog and digital signal is the strategy to avoid use multi-transmission medium, transmitter and receiver, secure and anti-EMI, simplify the usage environment. More over, can not ignore the power supply. After use the analog and IP network system, the power supply with features of more plug, addressable, programmable are very competitive.
The other considerations also include the network bandwidth. This is a tough job, but it can be solve by the IT specialist. The new technologies of compression, Decompression, Encoder types, such as H.264, the huge store capacity and video processing can reduce the bandwidth consumption ? The budget can afford to purchase the equipment that for video transmission of mega-pixel IP cameras ?
Video Store and Query Challenges.
Most of security projects already owned the standalone DVR for store and query the video. Although with multi-functions and advantages. Video storage is still facing the challenges.
For IP network camera, camera also adopts SD card for storage of the video. Camera will switch to SD card to store the video as long as camera loose the connection with system. This can prevent camera loose the important video.
Before move the IP camera system from analog system, following aspects should be considered.
- If require the remote surveillance, could we get the event report ?
- Should we share the legal video with other department, need real-time recording ?
- How long the video should be stored and need how much storage capacity ?