An intrusion zone works similar to a tripwire but instead of a single line or perimeter, it uses an area. These zones can be configured to be unidirectional or bidirectional. They can also be set up to trigger an event when an object appears in the region rather than crossing the perimeter. Intrusion zones, like tripwires, can activate PTZ tracking when an alarm is initiated. Intrusion zones are commonly deployed in parking lots or in front of doors.
Setup Instructions
- Use Internet Explorer to log into the device's IP address
- This can be done within either the recorder or camera, but the menus will look slightly different
- Install the plugins if prompted
- Navigate to Smart Plan by going to Setup → Event → Smart Plan
- Enable IVS, it looks like a light bulb, then select IVS from the menu
- Be sure to click OK or the settings will not save.
- Click the green ‘+’ button in the rule window to create a new rule
- Click on the rule type to change it to intrusion, you may have to double click
- Click the draw rule button underneath the image and create your zone
- Right-click when you’re done drawing the tripwire to create the rule
- You can use the target filter to create a minimum/maximum-sized object that will trigger an event
- The positioning of the filter does not matter
- Select either appears or cross
- Select desired alert options, i.e. snapshot, send e-mail, alarm upload, etc
- Save the configuration
Conditions and Restrictions
- Cameras are recommended to be mounted vertically at least 15ft. The wider the viewing angle the better IVS will operate. IVS can still work if mounted lower but they will not be as consistent
- Specifically related to PTZ cameras, it is recommended to have the camera stationary for at least 3 minutes to calibrate, i.e. every time the camera moves it will need to sit in the same place for 3 minutes
- The analytics have to recalibrate in high contrast situations, e.g. a door opens in a dark garage and light comes flooding in.
- This recalibration usually takes a few seconds and the event may be missed. In situations like this, motion detection may be better to use.
- The size of the rule should be within 20-33% of the entire image. The wider the viewing angle, the larger the rule can be
- Don’t draw rules along the edge of the image. The analytic system needs to be able to see objects coming and going and if the rule touches the edge of the image that makes this impossible
- Intrusion zones can only be used with tripwires or other intrusion zones. It cannot be used with other IVS types
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