Introduction

The Area Rule with a Filtered Property Check will check the properties of a target only whilst it is within the area defined by the Area Check. This has no additional benefit for point in time properties such as the target's current speed or size, however for properties which are calculated over several sightings, such as average speed or area covered, this is extremely useful. This filtered check ensures these properties are only evaluated for sightings inside the area. In this example, if a target’s Area Covered property is greater then 20 meters whilst the track is within the area then an alarm is raised and a camera is tasked to follow the target.

Contents

Configuration

Open

Nodes

Input

Track Sighting Input Rule Inputs | Track Sighting Input

Checks

Area Check Rule Checks | Area Check

Open

Filtered Property Check Rule Checks | Filtered Property Check

Property Name: Name of property to check on a track sighting.

Property Test: Select the type of test to perform on the property.

Actions

Alarm

Camera

PPI Example

The image below shows the New Area after the Target has entered it but before it has travelled 20m within the area boundary:

Once the target has travelled further than 20m the alarm is triggered:

Video

The following video demonstrates how to create an Area Movement Rule with a filtered property check:

Related Information