Network appliances for use in combination with a network based
full service, multi-media surveillance
system provide a wide range of monitoring techniques utilizing
digital network architecture. The appliances may be connected to the surveillance
system for transmitting
event data, video and / or image monitoring information, audio signals and other data over significant distances using
digital data transmission over networks such as a
local area network (LAN), a
wireless LAN (WLAN), a
wide area network such as
the Internet for other networks, permitting remote manual and / or automatic assessment and response. The
wireless LAN
connectivity permits local distribution of sensor information audio, video and image data with relatively
high bandwidth without requirement of a
license and without relying on a
common carrier and the fees associated therewith. The surveillance
system may be interfaced with a WAN (
wide area network) such as
frame relay or
the Internet for providing a worldwide, low cost surveillance system with virtually unlimited geographic application. Multiple sensors and appliances may be accommodated, as required. The topology of the network will be established by the geographic situation of the specific installation. Appropriate firewalls may be set up as desired to protect unauthorized access to the system or collected data. The
server based system permits a security provider to have access to the appliance, related sensor and
surveillance data or to configure or reconfigure the system from any
station on the
Intranet or Internet. The use of power supplied over LAN wiring to various configurations of security network appliances provides an important simplification and cost reduction of the installation of various alarm and
security system devices, such as card readers and scanners, audible devices, strobe enunciators, keypads, motion detectors, and the like. The use of networked sensors in the form of network appliances allows various servers and monitors to share common sensors, further reducing installation costs and greatly increased flexibility.