User guide

DETEXI NVR 95 - 169
Event Management
The DETEXI NVR has the ability to receive, process, and associate events
from different systems. Events can be received from access control, the
software, and the network video products themselves. Once an event is
triggered, the NVR register the event, associate it with a video clip from a
nearby camera, and alert an operator, or investigator by sending a
notification or by having a window with streaming video pop up on a viewing
terminal, or respond any other configured way. This allows remote
monitoring stations (Remote DETEXI Clients) to become immediately aware
of a change in a monitored environment and response to things that occur.
• Having event management functions in the NVR provides
tremendous benefits. It enables more efficient use of bandwidth
and storage space because there is no need for a network camera
or video encoder to send any video for viewing or recording unless
an event takes place.
• In addition, live monitoring of cameras is not required all the time. When an event takes place,
alerts and notifications can be sent, and all configured responses (actions) can be activated
automatically.
• Event management, which includes alarm handling, involves defining an event that activates a
network video product to perform certain actions. An event can be scheduled or triggered
Events can be triggered by, for example:
Input port(s) — the input ports on a network camera or video encoder can be connected to external
devices such as a motion sensor or a door switch.
Manual trigger — an operator can make use of buttons to manually trigger an event.
Video motion detection — when the NVR detects certain movement in a camera’s video, an event
can be triggered.
Responses
The DETEXI NVR can be configured to respond to events all the time or at
certain set times. The system response configuration is based on the NVR
Task Execution Engine. When an event is triggered, some of the common
responses can be configured include the following:
• Upload images for recording at specified locations and at a certain
frame rate using a specified compression type and level during the
course of an event.
• Activate output port: the output ports on a network camera or video
encoder can be connected to external devices such as alarms or a
door switch.
• Execute an external program on the DETEXI NVR, with user-defined parameters if desired.
• Send e-mail notification: this notifies users that an event has occurred. An image of the first frame
of the alarm video also can be attached in the e-mail.