Stop Arm Camera 2: Viewing Files

The triple-lens Stop Arm Camera 2 supports school transportation safety by automatically recognizing, capturing, and storing evidence of vehicles passing a bus that has enabled its stop arm.

Each time an infraction is detected, the Stop Arm Camera 2 creates a folder with the unique "Event ID" to store photographic, video, and metadata evidence. After an event, the generated folder is copied to the Ranger DVR. 

How to view event folders

Users can view event folders from the Ranger DVR in three different ways:  

1. CloudConnect:
   • Devices registered to Pro-Vision's cloud solution automatically upload event folders to the platform when connected to Wi-Fi. Users can then access event folders directly from CloudConnect.   
   • To learn more about viewing files in CloudConnect, see File Viewing with CloudConnect. 
2. Wi-Fi connection: 
   • Any smart device can connect to the Ranger DVR via Wi-Fi and navigate to the device's website, where the user can view the event folders and live camera footage. 
   • To learn more about connecting to the Ranger DVR Wi-Fi, see the video tutorial Connecting to a DVR via Wi-Fi or the article PD-1902 Ranger DVR: Connecting to the DVR via Wi-Fi. 
3. SD card or SSD:
   • Users can view event folders by removing the Ranger DVR's storage card or drive and plugging it into a PC.
     
     • • The Ranger DVR must have an SD or SSD to store data, so the storage device must be replaced before it is used again. 
       • Before replacing an SD or SSD card, verify that there is no previous firmware version on the card. If there is, the Ranger DVR will automatically update (or downgrade) to that firmware version.
   • To learn more about viewing files with an SD card or SSD, see the video tutorial Accessing Videos from an SD Card or Solid-State Drive or article How to View DVR Video Files on an SD/SSD. 

What is in an event folder? 

Each time the Stop Arm Camera 2 detects an infraction, it generates an "Event ID", a unique identification number created from the device's serial number, date, and the sequential number of the event.

• For example, If a device with the serial number 2307SA0001 detects a passing vehicle on October 22nd, 2024 (20241022) for the second time (0002). The "Event ID" created would be  2307SA0001202410220002. 

Each folder is named its corresponding "Event ID" and contains: 

1. A video (.mp4) of the event from the wide-angle lens. 
2. A photo (.jpg) of the rear license plate. 
3. A photo (.jpg) of the front of the vehicle and license plate, if applicable.
4. A metadata file (.json) with the camera serial number, Unit ID, date and time (in UTC offset format) of the infraction, exact coordinates, detected license plate, and time elapsed from the stop arm deployment to the infraction in milliseconds.