Adjusting for Moving between Light and Dark Areas
If people going in one direction are less easily counted this is usually because of different lighting conditions on the two sides of the zone. You can adjust for this.
- Select the VT module which is monitoring your entrance.
- In the Settings list, alter the ThresholdLevel. To help detection against darker backgrounds, reduce this by 4. Levels down to 8 are acceptable.
- Click the Apply to VT button or Send Settings to Module.
- You may now need to compensate for wider perceived width and increase the maxium width of a person. Double-click the Typical Width entry.
- If you wish to set other VT units to count crowds then go to the Settings tab and click button 5, Copy settings to higher address numbers.

Manual ref: VT-2.04, June 2007 |
Next: Changing other Settings. |