Privacy Settings
By clicking “Accept”, you agree to the storing of cookies on your device to enhance site navigation, analyze site usage, and assist in our marketing efforts. View our Privacy Policy and Cookie Policy for more information.
Blog Article

How to Create an Alarm in Isarsoft Perception

This tutorial explains the creation of an alarms in Isarsoft Perception.



How to Create an Alarm in Isarsoft Perception

The alarm functionality by Isarsoft Perception can enhance the level of security and safety within critical infrastructure and buildings significantly. The reasons for the security improvement are threefold:

  1. By being notified of an incident, the response times of operators can be reduced.
  2. Implementing automatic actions in the event of an alarm reduces the response time even further and help to react appropriately.
  3. Due to the high accuracy of Isarsoft Perception, false alarms become a thing of the past.

This tutorial explains the creation of alarms in Isarsoft Perception.

Types of Alarms

Isarsoft Perception offers two different types of alarms: One for applications, one for cameras. This article demonstrates how you can create both.

Camera based alarms notify operators of changes in the camera perspective, a change in the background or a damaged or soiled camera. A camera based alarm references a previously created camera. In another article we explain how to create a camera in Isarsoft Perception.

Application based alarms are based on previously created applications, i.e. Object Count, Object Flow or Crowd Count applications. They are triggered by events in the corresponding application, i.e. if an zone is overcrowded or people cross a line.

Alarm Overview

To create an alarm, first visit the alarm overview. It is located in the navigation menu on the left. The alarm creation dialog opens after clicking on the ADD ALARM button in the top right corner of the alarm overview.

Alarm Source Selection

In the step “Selection”, you can choose between Application or Cameras to create either application or camera based alarms. Down below you can then choose an application or camera by clicking on the preview image.

Configure Alarms

In the second step the alarm parameters for the previously selected application or camera can be specified.

alarm creation dialog in isarsoft perception

The alarm name and tags, allow to identify and cluster the alarm after creation.

The alarm conditions specify under which circumstances the alarm is being triggered. The conditions vary between camera and application based alarms.

Alarm Conditions for Application based Alarms

The following alarm types exist for application based alarms:

  • Entering, when an object enters a specific zone or crosses a line inwards.
  • Leaving, when an object enters a specific zone or crosses a line outwards.
  • Count Sum, when too many objects in an zone is larger, smaller or equal to a certain value.
  • Dwell Time, when an object stays in an zone longer than a certain time.

Depending on the alarm type you can choose from a list of zones or zones and lines which have been previously configured in the application.

The available object classes depend of the underling model of the selected application. While a simple person model only allows for alarm creation with persons, a traffic model allows to combine different vehicle types.

The last field in the dialog depends on the alarm type. In the reference image above we created a "Count Sum" alarm, thus we can set the threshold for the sum of objects in the last step by entering a number.

Alarm Conditions for Camera based Alarms

As depicted below, the alarm creation for camera based alarms looks alike the creation of application based alarms.

The main difference are the conditions. With camera based alarms you can specify a threshold that determines the sensitivity of the background change alarm.

Alarm Summary

Below the dialog fields you can find a summary of the alarm conditions. The summary on the right, links to the selected camera or application.

The alarm creation is completed by clicking "Create".

After the creation of the alarm you will be automatically redirected to the overview page, where you can find the corresponding camera, application and conditions of each alarm. Furthermore, the alarm can be enabled or disabled via the status field.


Isarsoft Perception integrates with a variety of other systems to further process or display the collected data. Alarms can be send to other systems in real time via the MQTT or Amazon Kinesis integrations. Furthermore, Isarsoft Perception integrations with leading Video Management Systems to display alarms to operators in the control center.

What’s a Rich Text element?

The rich text element allows you to create and format headings, paragraphs, blockquotes, images, and video all in one place instead of having to add and format them individually. Just double-click and easily create content.

Static and dynamic content editing

A rich text element can be used with static or dynamic content. For static content, just drop it into any page and begin editing. For dynamic content, add a rich text field to any collection and then connect a rich text element to that field in the settings panel. Voila!

How to customize formatting for each rich text

Headings, paragraphs, blockquotes, figures, images, and figure captions can all be styled after a class is added to the rich text element using the "When inside of" nested selector system.

Optimize your business processes.

Improve business processes with video-based business intelligence from Isarsoft.

Explore more publications

How does Isarsoft Perception measure and monitor occupancy using heat maps?

A brief overview of Isarsoft's Perception occupancy monitoring feature, in the context of a train station.

Learn more

Luggage Detection and Analysis: Airport Operations by Isarsoft Perception

Isarsoft Perception caters to baggage detection, identification and analysis with the help of AI-enabled smart technology.

Learn more

The European Green Deal, Its Objectives and the Need for Video Analytics

The EU is working on measures to combat climate change, some massive changes need to be done, especially in the area of ​​mobility. We elaborate on how video analytics becomes an integral part to the solution.

Learn more