DVR or Digital Video Recorders are a gift of modern science which has found wide spread acceptance in security initiatives around the world. With the growing threats of crimes, the need of surveillance and monitoring has also gone up. DVR systems fulfill this need of safety and therefore are an important part of modern day security arrangements. DVR surveillance can be used in offices and homes where video monitoring is necessary to ensure safety. This technology utilizes a PC and by connecting the security cams with the PC, one can monitor a selected area from a remote location. With the advantages of internet, nowadays, the images of a selected area can be viewed from anywhere. This solves a much awaited need of the frequent travelers and those who need to access video monitoring from a remote place.
In DVR systems, use of videotapes is eliminated thereby ensuring protection of data from daily wear and tear. The components of a DVR surveillance system include motion sensors, image zoom controls; color quad processor, multiplexer and CCTV camera connections. One can use image zoom controls that move from one side to the other to restrict the need of cameras in a particular room to two. There are motion sensor DVRs which gets activated when any movement takes place, thereby saving disk space and need of constant monitoring. The data obtained from DVRs can be recorded onto a CD or any other digital recording device.
Earlier VCR surveillance systems were available but they have been discarded for poor quality of output. DVR surveillance is also helpful in recording and disseminating stored data. All portions of movement recorded by the system can be obtained in common picture formats, such as jpg. This helps in proper recognition activities that took place in the selected area that is being monitored.
The data in DVR systems get stored in Date and time format. So, activities of some particular time can be retrieved without examining the whole record. However, these advanced options are limited and may not be available in all systems.
The security threats that have cropped up with the use of modern arms and ammunition can only be dealt with the modern surveillance and security arrangements. DVR systems are a bold step towards safekeeping of property and people from the hands of criminals. The use of such devices can only go up with passing time.
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