Configuring the SharpV to monitor dual lanes - SharpV | SharpOS 13.2

AutoVu™ SharpV Administrator Guide 13.2

Applies to
SharpV | SharpOS 13.2
Last updated
Content type
Guides > Administrator guides
English (United States)

In certain situations, it is possible for the SharpV to monitor two lanes of traffic. If dual-lane monitoring is available in your region, you can configure the camera to identify two lanes in the field of view.

Before you begin

  • Install the SharpV between the two lanes, for example, on an overpass. If the camera cannot be installed exactly between the two lanes, a certain amount of offset can be accounted for in the following steps.
  • Adjust the focus and zoom of the camera.
    NOTE: When monitoring dual lanes, characters should be from 10 to 40 pixels high. This is smaller than the standard pixel height requirements (25 - 60 pixels). As a result, license plate capture performance might be affected. When using this feature, it is recommended that you test the system's performance.
  • Select a compatible regional context. For the complete list of countries that currently support Dual-lane feature, see Supported dual-lane configurations.

What you should know

IMPORTANT: When the SharpV is configured to monitor dual lanes, the virtual loop, speed estimation, and region of interest features are unavailable.
IMPORTANT: In the dual-lane mode, motorcycle plates are not read bySharpV cameras.
IMPORTANT: Using the SharpV dual-lane monitoring feature reduces the ALPR performance of the camera. Do not configure the SharpV for dual-lane license plate detection if you are monitoring parking occupancy using AutoVu™ Free-Flow in Security Center.
  • The SharpV can detect vehicles moving in either direction, assuming the vehicles have front and rear license plates.
  • One read strategy analytic (for example, for slow-moving vehicles) applies to both lanes.


  1. Log on to the Sharp Portal.
  2. From the Configuration menu, select Analytics > ALPR settings.
  3. From the Zones menu, select Dual lane.
    NOTE: The Zones menu is only displayed if a compatible regional Context is selected.
  4. Define the center line between the two lanes.
    1. From the Configuration menu, select Cameras > Region.
    2. Enter descriptive Lane names.
      For example: Highway 40 / left lane
      NOTE: To include this information in Security Desk reports, you can add "Lane" as annotation field in Security Center.
    3. Drag the sliders to define the lane separator position.
    4. When you are satisfied with the appearance of the lanes in the video feed window, click Save.
      The system displays the message: Configuration saved successfully.