Introduction

The Approach Rule wizard will allow you to create an Approach Rule. The Approach Rule checks the direction and speed of a target in relation to a selected area. The rule evaluates if the target is heading towards the area and the alarm can be raised if the target is within a specified distance or is predicted to arrive in the area within a specified time. If the target meets these approach criteria then an alarm will be raised and a camera will be tasked to follow the target.

Contents

Configuring the Wizard

1. Select the Approach Rule type:
   
   

   Open

   

    

2. Select a New Area (in green) or an existing Area (in white).
   
   

   Open

   

    

3. Here a New Area has been selected. This will automatically create a new area entitled “New Approach Rule Area” under the Areas folder in the configuration tree. The area can be edited and moved once the wizard has been completed.
   
   

    

4. On the second page of the Approach Rule wizard, you can configure additional properties. Below are the default settings, and if not changed at this point they can be amended at a later date by editing the rule.
   
   

    

5. This is the resulting approach rule:
   
   

Nodes

Inputs

Track Sighting Input Rule Inputs | Track Sighting Input

Checks

Classification Check Rule Checks | Classification Check

In this example, the target has been classified as a person.

Approach Check Rule Checks | Approach Check

This will set the area for the rule, and the the boundary limits; e.g. if the target approaches within 2m of the area

Links

Boolean Link: And Rule Checks | Boolean Link

In this example, And has been selected. This means that each of the checks will need to be satisfied for the Actions to proceed.

Actions

Alarm Rule Actions | Alarm

This will generate an alarm if the Approach Area is reached. The Priority and Severity of the Approach can also be configured; for example, in a highly sensitive area then you may want the highest threat level to be set.

Camera Rule Actions | Camera

This will set a Camera to keep following the target after the condition clears.

PPI Example

A track, with the target approaching the Approach Area:

Then the target crosses into the Approach Area and activates the alarm:

Video

The following video illustrates how to create an Approach Rule, how to edit it and set a camera to follow the target, and what happens when a playback track target triggers the Approach Rule alarm:

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