Operation Manual

IVA 4.0 Requirements | en 9
Bosch Security Systems Operating Manual DOC | 4.0 | 2009.06
13. Close the window.
IVA 4.0 is now activated. The activation key can no longer be seen.
Upgrade from IVA 3.5
If you have already licensed IVA 3.5 for the device, you simply need to upgrade the firmware
of the device to version 4.0 or higher. The license for IVA 3.0 is then automatically changed to
an IVA 4.0 license. Relicensing is not necessary.
You obtain the current firmware from your customer service or from the download area on our
Internet site.
You can update the firmware directly via the Web browser view of the device or by using
Configuration Manager. For detailed information on this process, please see the appropriate
documentation.
2.4 Limitations
Please note the following considerations:
IVA 4.0 is suitable for monitoring boundaries, fences and enclosures and for the protection of
pipelines, overland lines, car parks etc.
However, in certain environments the use of this type of motion detection system may not
always be advisable; this is because movements may not always be detected or too many
movements may be detected owing to reflections.
Movements may be falsely detected if there is:
– a reflective metal background
– glass (glazed building frontages)
– water as a background
– cones of light moving in darkness
Large areas of reflected light can also cause spurious motion detection. However, light
reflections caused by falling raindrops, for example, are small enough to be ignored for
statistical purposes and owing to the uniform nature of their motion.
Objects that always move uniformly (such as clouds) do not impair the detection of other
objects and do not trigger false alarms.
A constant background is necessary in order to detect motion reliably and to assign that
motion to a particular object. The more the background moves, the harder it is to distinguish
moving objects from it. For instance, a person walking in front of a hedge that is moving in the
wind will very probably not be detected.
If the image consists to a certain extent of nothing but moving objects — in other words, if
objects cannot be distinguished from each other or from the background — the motion of an
individual object cannot be detected (for example, individuals in a large crowd). In this
scenario, IVA 4.0 Flow can detect uniform movement flows.
If a very large number of objects are detected, a lot of computing power will be required – this
will reduce the power that is available for the transmission of live video data. If necessary,
change the settings so that only relevant objects are detected.
IVA 4.0 and the associated configuration menus offer a number of simple ways to overcome
these limitations and eliminate problem areas.
Note:
– If you are analyzing movement in live images, the computing power of the device (sender
or camera) is challenged.
– During motion analysis in recordings, the computing power of the PC, on which IVA 4.0 is
used via Archive Player, is challenged.