DW Spectrum and Plate Recognizer Integration Guide

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Affected Roles: Owner, Administrator

Related Digital Watchdog VMS Apps: DW Spectrum IPVMS

Software Version: DW Spectrum 5.1

Last Edit: October 24, 2023

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ALPR Stream Integration

DW’s integration partner, Plate Recognizer (ALPR), provides license plate recognition software to their customers that can be integrated with DW Spectrum Systems.

This article will outline how to integrate the ALPR product with DW Spectrum IPVMS.

**NOTE: For more information about Plate Recognizer, you can visit the Plate Recognizer integration page here: DW Spectrum ALPR Integration | Plate Recognizer ALPR

Integration Method 1: Connect ALPR Stream with DW Spectrum

The first recommended integration method that ALPR has is to install their Stream software on the host machine then run their Stream – DW Spectrum integration software to forward Webhook Events from the Stream program to DW Spectrum as Alerts.

Integration Method 2: Using Plate Rec Cloud

Alternatively, users can use ALPR’s Plate Recognizer web service to integrate with DW Spectrum.

Part 1 – Connect Plate Recognizer with DW Spectrum

Click the Yes button to request a free trial integration with DW Spectrum.

Once the free trial has been approved, navigate to Apps > VMS Integrations and click on the Settings button for DW Spectrum.

Enter the Username and Password of the local DW Spectrum Server account. The account must have the Digest Authentication setting enabled in DW Spectrum.

Enter the DW Spectrum Server URL and Country Code(s).

A full list of Country Codes for Plate Recognizer can be found here.

Part 2 – Configure Cameras in Plate Recognizer

To add cameras to Plate Recognizer, click on the + symbol that appears under “Action”.

Select your camera from the dropdown list, then click the Submit button.

Next, in the DW Spectrum desktop client, right-click on the camera selected in the previous step then select “Camera Settings”.

Make sure that the Recording setting is enabled. A recording license is required for each camera in DW Spectrum to record video to the media server.

Make sure that the Motion Detection setting is enabled for the camera.

Part 3 – Create Event Rules in DW Spectrum

You will need to configure two (2) Event Rules in DW Spectrum for each camera that is added to Plate Recognizer.

In the DW Spectrum Client, open the Main Menu, click on “System Administration (CTRL+ALT+A)”, then select the Event Rules menu.

In the Event Rules menu, click the + Add button and create a Bookmark rule by configuring the following:

Event

When – select “Motion on Camera”.
At – select the cameras that have been added to Plate Recognizer.

Action

Do – select “Bookmark”.
At – select the cameras that have bene added to Plate Recognizer.
Pre-recording – set for 5 seconds.
Post-recording – set for 5 seconds.

Click the OK button to apply and save the settings.

Next, click the + Add button and create a Motion Detection rule by configuring the following:

Event

When – select “Motion on Camera”.
At – select the cameras that have been added to Plate Recognizer.

Action

Do – select “Do HTTP(S) request”.
Interval of action – set as no more than once per 60 seconds.
HTTP(S) URL – enter https://app.platerecognizer.com/integration/receive_nx_event/.
HTTP(S) Content – enter the Camera_UID.
Content Type – enter “application/json”.

Click the OK button to apply and save the settings.

**NOTE: An individual “Do HTTP(S) request” rule must be created for each camera that has been added Plate Recognizer.

This completes the setup on the DW Spectrum side. To see how to view the ALPR results, Plate Viewer recommends using their ParkPow! service.

For more information on seeing ALPR results, please visit the Plate Viewer integration instructions: DW Spectrum ALPR Integration | Plate Recognizer ALPR

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