What is E-Chalking (Virtual Chalking) in OPS-COM?
- Virtual chalking, or e-chalking is an electronic process that mirrors how an officer would manually chalk a vehicle's tire, in order to see how long they have been parked.
- Virtual chalking creates a Time-Stamped image, of both the license plate & the entire car, in order to track how long they've been parked
- Virtual chalking provides an image that can be attached to the violation and is acceptable in a court-of-law, provided the date/time stamp is visible & clear. The chalked image is part of the violation, unless the patrol officer deletes the image.
- When LPR software is capturing plates, officers can simply click "Virtual Chalk" to create/save the image
Why "Chalk" a Vehicle?
There are some situations where chalking is very useful, for example; If a vehicle is parked and the owner is going to purchase a permit, there can be a grace period to allow the client to obtain the permit and return to the vehicle to display the permit. Alternately, in areas where parking is provided on a timed basis where a vehicle can park free for 2 hours, the officer can virtually chalk the vehicle on a first pass earlier in the day and then be able to check the vehicle later in the day to determine if it has been parked longer than the permitted time frame.
Chalking vehicles manually is time consuming, so being able to virtually-chalk vehicles makes a time-efficient solution for a necessary aspect of parking management.
Chalk records stored with a violation help when dealing with Appeals as a time-stamped image is available as "proof" of the infraction.
How to "Chalk" a Vehicle on the Handhelds
On the OperationsCommaner for Android application, tap the Search Vehicle menu item to open the Vehicle Search window.
Enter a Plate Number and tap the search icon. In this case, we are searching for AAWXY410.
The screen will refresh with a list of valid vehicles. Long press the listed vehicle to access the advanced information screen.
Note the Virtual Chalk button. Tap Virtual Chalk to access the chalking function and information screen.
To capture an image, tap on the image icon to enter camera mode. Snap an image. The screen refreshes with the image of the vehicle in a thumbnail view. Tap Save to save the chalking timestamp.
Allow 10 minutes to pass and compare the chalking captures. Repeat steps 1 through 3 above. The screen will refresh, and we can see in the red text, a note indicating the vehicle was chalked 10 minutes ago.
Long tap on the listing to bring up the advanced information again. Note: If you tap the information box, you will see a full frame view of the image captured.
Verifing the vehicle chalking in the event of a dispute/appeal?
The question has come up often, as to what proof we'd be able to show for when a virtual chalking has occurred. The first important rule when chalking is to be sure to capture an image. If you read the plate using the camera LPR/OCR capture, the image will automatically attach the the chalking record with a date stamp in place. If a violation is subsequently written up on the vehicle, this chalking image will also be saved with the violation information.
If you enter the plate in manually please remember to also capture an image of the vehicle when chalking.
Here is a sample of the plate read image.
Along with that cropped image taken when performing a virtual chalk, the handheld unit will store a full frame image, with the date stamp at the bottom right of the image.
Here's a close up of the Time and Date stamp.