Security cameras and video capture systems serve a wide variety of users. Your surveillance system configuration is dictated by your specific requirements. With the broad selection of equipment available you can construct the system that meets your needs.
Real-time vs. Non-realtime Systems
Real-time surveillance systems display the captured video stream(s) from the security camera(s) on a monitoring device(s), usually for human intervention to detect and/or deter unwanted or criminal activity. Usually the video is simultaneously captured on a peripheral device such as a digital video recorder(DVR) or computer hard drive. The captured video stream can then be subsequently replayed for analysis.
Non-realtime systems are used for applications not involving the need for human intervention in response to the displayed security camera(s) output. In such applications the video stream is intended primarily for event capture for evidential purposes or general interest.
Display(viewing) Options
Sequential viewing displays the output from multiple security cameras in sequence, usually at a rate selectable by the operator using features included with the receiver/monitor. This viewing mode will usually suffice for home and small commercial operations where simultaneous viewing from multiple security cameras is not necessary.
Simultaneous display of the video streams from multiple security cameras requires additional equipment such as a quad processor to split the single screen of the monitoring device and route each camera signal to a designated area of the screen. Some observation systems are equipped with built-in splitters. Splitters will usually allow viewing of up to four security cameras simultaneously.
Security Camera Options
Your specific application or personal preference will dictate the security camera configuration for your surveillance system. A desire to minimize the visibility of monitoring devices would suggest selection of the more compact configurations - mini, ultra-mini, and some bullet cameras. Outdoor applications demand equipment resistant to the ravages of Mother Nature. Night vision capability requires infrared illumination, either by LEDs built into the security camera body or by accessory device.
