Introduction

This section specifically deals with known door issues and how to fix them.

 

Doors being seen as Targets

This is a known issue, but should not affect accuracy at all, providing devices have been installed correctly. Remember that targets seen in the field of view won't affect count data unless they cross a count line or enter a configured zone. This means that count lines should always be positioned around a door, and zones should be configured well away from any door.

Note the requirement to position lines and zones away from the movement of any door actually applies to any non-human targets that is fixed in place but moves and generates targets. Just make sure lines and zones are positioned away from the area of movement and where the corresponding targets are being initialized.
Note that other non-human targets that might traverse the field of view, such as supermarket trolleys, large luggage, etc, should be handled using the Global Height Filtering functionality.

 

Door Targets always being counted

If it is not possible to ignore targets that are associated with movement of doors, because those targets traverse the whole of the field of view and therefore there is not a place in the file of view to position lines, then this indicates that the device itself has been installed incorrectly.

Vectors must be installed outside of the swing of any door, which usually equates to about 1m away.

It should be noted that Vectors that are mounted at the higher end of the allowable mounting height range will clearly have a larger field of view, and so mounting close to the door will still mean that they 'see' over the top of the door and hence it should be possible to angle count lines around the swing of the door, even if those lines would be quite far into the store/building as a result.

For more details of installation issues see the Line setup section of the Accurate Counting page.

 

Vectors Interfering with Automatic Doors

Whilst very rare, it is possible that some automatic doors use the same Time of Flight technology that Vectors use for tracking/counting, to detect people as they approach and trigger the door opening procedure.

Unfortunately when Vectors are installed close to one of these types of doors, the Vectors time of flight signal output can trigger the door opening mechanism inadvertently.

Symptoms of this particular issue are that the automatic doors are constantly opening and closing, or simply staying open, when no one is nearby.

To fix this issue there are a few different factors to consider.

Firstly, make sure that the Vector is indeed the cause of the issue. On occasion, installing the Vector or doing other work around the door has lead to a simple intermittent wiring connection issue, which is easily rectified. To confirm the issue originates from the Vector, simply power off the Vector and confirm correct door operation resumes.

Once the issue is confirmed, firstly, make sure that the Vector is installed optimally. This primarily means not being too close to the door. If the Vector is installed far enough away from the door then the issue will be reduced or even negated completely. Remember that Vectors should be installed at least 1m away, but at higher heights with correspondingly larger field of views, devices can be installed much further away. 

See the main Installation Guide section and also use the Irisys Device Calculator spreadsheet for more installation options.

Secondly, consider tilting the Vector away from the door. This may be an option in some cases. Even tilting by just a few degrees will help, as tilting means less of the Vectors Time of Flight signal will go towards the doorway and hence the door opening will be less likely to be triggered.

If you are able to tilt the device, don't forget to manually trigger the Auto Height / Tilt function so that the new angles are measured and stored for use.

Lastly, Vectors have the ability to adjust the Time of Flight frame rate. This effectively changes the signal being emitted to a slower rate which will help in the majority of cases.

To access the Time of Flight Frame rate, firstly click the 'Devices' button to show the Devices window if its not already open:

 

On the Devices window, click the yellow Edit button:

 

The current height, as well as the installation tilt angles will be shown:

 

Now scroll down inside the Edit Devce dialog to show the 'Advanced' option:

 

Now from the dropdown change the 'Default' setting to the 'Reduced Frame Rate' option, and then click 'Save Device':

 

Note that reducing the Time of Flight frame rate should fix any issues associated with interfering with automatic door opening mechanisms, but note that tracking of genuine targets could be affected in some small way. Because of this, the frame rate should not be reduced in all cases - only when door interference has been confirmed.
If enabling the 'Reduced Frame Rate' does not correct the door operation, many door systems will have a similar option on board which allows their own frame rate and/or frequency to be adjusted. By liaising with the door manufacturer, a suitable set of non-interfering settings should be established.