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The use of digital surveillance technology is rapidly growing as it becomes significantly cheaper for live and remote monitoring. The astronomical cost of these first security camera systems, based on traditional silver-based photographic cameras and film, limited their use to government buildings, banks, and casinos. If questionable activity was discovered, the monitoring security firm would develop the films in a secure, private darkroom laboratory to analyze at a later date. In a recent U.K. Home Office Research Study on the effectiveness of video surveillance as a crime deterrent, 46 surveys were done within cities’ public areas and public housing in the United States and the United Kingdom. Of the 46 studies, only 22 had enough valid data to be deemed acceptable for publication. All 22 published surveys showed significant reduction (as much as 50%) in burglaries, vehicle theft, and violent crimes. However, it is rather difficult to analyze data on the effectiveness of GSM Security Alarm Camera due to the many variables in the complexity of the areas of coverage and general displacement. 

For example, the decrease of crime within an area monitored by Wireless IP Camera may have forced criminals to move to a different location, thus displacing the violent crimes. Enclosed areas of coverage, such as parking garages and lots, buildings, and campuses, have better success with video surveillance than large outdoor areas as long as there is a clear presence of a “capable guardian,” which can be increased police or security guards or the electronic eyes of security cameras. Closed-circuit television (CCTV), which uses traditional radio frequency (RF) technology rather than photographic technology, was introduced in the 1980s and provided a more cost effective and real-time method of video surveillance.

Today’s concept of video surveillance has its roots in the analog world of television. The framework of CCTV is a simple one, using the same analog signal you’d receive from your old pre-digital television. A single camera monitors one location and sends it to a cathode ray tube (CRT) television monitor at another location using a coaxial cable. Usually the system has a single command center where security personnel watch black-and-white and/or color monitors of various Wireless Security Cameras . Multiplexing technology provides the ability to watch more than one camera on a single monitor or automate a cycle of various camera feeds on a single monitor to expand the area of coverage. Though it’s true that many security professionals and companies still use CCTV and the concept of a centralized “command center,” not everyone has the space, money, or resources for such a system. Wiring a house, office, building, or campus with coax cables from every camera to a control unit and then to each CRT monitor is costly, time consuming, and, thanks to internetworking technologies, unnecessary.Ancillary utilities and devices can provide simple integration of some alarms, but this technology is limited in its capabilities and has a complex and costly integration into third-party systems. A single monitor in the parking garage management office was connected to the output for monitoring cameras. The PCU offered shuffling of each camera feed at select intervals and a keyboard to input the call number for each camera or to scroll through the cameras, one by one.

More information at http://www.jimilab.com/ .