The technology migration from analog video surveillance systems based on videocassette recorders to networked systems that use Internet protocol (IP) to connect digital video recorders (DVRs) is in full swing, according to a survey of security managers conducted recently by Security magazine. Approximately half (49.5 percent) of respondents already have an IP-based security video system, while 32.1 percent say they plan to purchase a turnkey IP-based video system within the next 12 months.
“Our goal was to get something more reliable and to be able to critique incidents after the fact,†Miller explains. In comparison with GM’s previous VCR-based system, which required scanning through multiple videotapes to review an incident, the new system enables Miller and his security colleagues to search by day or hour. “We can record almost half a year,†he adds.