# How to configure a signaled License Plate recognition in Vaxtor ALPR App

**URL:** <https://community.mobotix.com/t/how-to-configure-a-signaled-license-plate-recognition-in-vaxtor-alpr-app/4070>\
**Category:** Vaxtor Apps\
**Tags:** apps, certifiedapps, vaxtor, vaxalpr, signaled\
**Created:** [June 4, 2021, 3:30pm UTC](https://community.mobotix.com/t/how-to-configure-a-signaled-license-plate-recognition-in-vaxtor-alpr-app/4070 "2021-06-04T15:30:13Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![Mx-MaikC](https://yyz2.discourse-cdn.com/flex030/user_avatar/community.mobotix.com/mx-maikc/32/1179_2.png) [@Mx-MaikC](https://community.mobotix.com/u/Mx-MaikC)\
**Post date:** [June 4, 2021, 3:30pm UTC](https://community.mobotix.com/t/how-to-configure-a-signaled-license-plate-recognition-in-vaxtor-alpr-app/4070/1 "2021-06-04T15:30:13Z")

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Two different detection modes can be used with the Vaxtor ALPR Apps.

**Freeflow:** license plate is detected if it appears in the detection area

**Signaled:** Vaxtor ALPR app gets a MxMessage trigger for a one-time detection at the time the MxMessage arrives in the app.

this tutorial explains how to set up the configuration for this.

In this case, the camera receives a signal input and sends a MxMessage to the Vaxtor app so that it starts a detection when a signal input is received.

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## _ **1. Create a MxMessage Profil for Action Groups** _

**Admin-Menu → MxMessage System → Message Profiles for Action Groups**

Add a new Profile

the default MxMessage in the Vaxtor app for a signaled detektion is: **trigger**

However, you can use any MxMessage, which must then be customized in the Vaxtor app afterwards.

It is important to set the **Message Range** to **Local**!

 ![1](https://canada1.discourse-cdn.com/flex030/uploads/mobotix/original/2X/c/ccc2c5296a93c909ca13518987b8f65280214e73.png)

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## _ **2. Create an Event that should trigger the MxMessage to the Vaxtor App** _

**Setup-Menu: Event Overview**

in this case we use a Signal Input as Trigger Event.

You can also use an IP-Notify Event for example which will be send from 3rd Party software.

 ![2](https://canada1.discourse-cdn.com/flex030/uploads/mobotix/original/2X/3/39af474d6896ceb6dad253a1661713eeff19ba16.png)

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## _ **3. Create an action group that sends the MxMessage to the Vaxtor app when an event occurs** _

**Setup-Menu: Action Group Overview**

**Add new group**

Select the triggering event in the Event Selection

Add a new action and select your MxMessage Profile which you have created in the first step

 ![3](https://canada1.discourse-cdn.com/flex030/uploads/mobotix/original/2X/e/e2586cbcd338da992c5b728bb0526f638e89167a.png)

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## _ **4. Configure the Vaxtor ALPR App to signaled mode** _

**Setup-Menu: Certified App Settings → Vaxtor ALPR**

**Working Mode: signaled**

**Trigger Message: trigger (or enter your own message which you have define in the MxMessage Profile for Action Groups)**

 ![4](https://canada1.discourse-cdn.com/flex030/uploads/mobotix/original/2X/0/010f00cf1186e0815b7f9052abbebd3be87f8264.png)

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Now, the Vaxtor app only detects a license plate once at this point in time when the MxMessage arrives.

and only if the signal input (event) is present in the camera.

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<div class="post-metadata">

**Author:** ![Mx-JoergS](https://yyz2.discourse-cdn.com/flex030/user_avatar/community.mobotix.com/mx-joergs/32/10425_2.png) [@Mx-JoergS](https://community.mobotix.com/u/Mx-JoergS)\
**Post date:** [July 1, 2022, 1:23pm UTC](https://community.mobotix.com/t/how-to-configure-a-signaled-license-plate-recognition-in-vaxtor-alpr-app/4070/2 "2022-07-01T13:23:14Z")

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Some Updates with the latest Camera Firmware 7.3.1.31r3 to Setup Vaxtor APP and combine it with MOBOTIX HUB and Helix.

**New Settings in the Camera App Settings of Vaxtor LPR:**

 ![Camera Helix Setting](https://canada1.discourse-cdn.com/flex030/uploads/mobotix/original/2X/2/286ab5bd4f105604eb622af2719106d466495256.jpeg)

**To get the API key for Helix in the Helix Configuration:**

 ![Helix-API Key](https://canada1.discourse-cdn.com/flex030/uploads/mobotix/original/2X/7/75eb127a3c8d618e594fd125c35c82f2057aff64.jpeg)