Introduction

This quick guide discusses the individual register Count Mode settings available on the Irisys Vector 4D devices, and how to configure it.

In order to access these settings, you must first make an initial connection to the Vector unit; see separate guide: Irisys Vector 4D - Making a Setup Connection.

 

Register Settings

Once you are connected to your Vector, the Register settings are accessed via the ‘Settings’ tab, then ‘Counting’.

On the 'Registers' dialog window each register has its own settings that can be changed independently, simply by  clicking the Edit symbol, shown here. If the Registers window is not shown click the Registers button first:

The ‘Edit Registers’ dialog will then open.

 

Count Modes

The Count Mode selected determines when a valid count should be given for a particular register. Essentially a valid count means someone has crossed a line in the required direction indicated by the direction arrows on that line.

There are two main counting modes, ‘Immediate’ and ‘Deferred’, each with sub-options, which can be enabled as required. Altogether there are a total of five, different, count modes for lines.

Immediate Count Mode

  • The first count increment is given at the time the person crosses the count line (in the configured direction)

  • With ‘Anti-dither’ enabled – only the first crossing is registered

  • With ‘Anti-dither’ disabled – all subsequent line crossings are also registered

  • Immediate count mode is not a recommended count mode for standard people counting.

Some of the more advanced register types require lines to be set to Immediate count mode.

Deferred Count Mode

  • Count increments are not given immediately as lines are crossed. Instead, any registers are incremented only when the person leaves the field of view
  • Each person can only be counted a maximum of once per count line
  • The additional ‘U-Turns’ options affects how targets which cross both lines are counted
  • Ignore U-Turns
  • Count U-Turns
  • Count U-Turns Only
  • All three of these options relate to when a person first walks across a line in the correct direction, but then ‘U-turns’ and goes back across it in the opposite direction.
The Deferred Count Mode is the default count mode, and is the preferred and recommended count mode for the vast majority of people counting applications

In some cases, it may be necessary to change the count mode. This will depend on:

  • the installed environment and how people walk through it
  • your chosen count line settings
  • what you want to count
  • what you don’t want to count

See below for some example walking patterns and the increments given in each count mode:

 

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