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Deliverable D4.2.1 Dissemination Level PU Contract N. IST-1-507674-IP
I/O Devices
ICA
Application
Figure 3: Communication flow between ICA and applications
3.10.4. DVE component
The description above also makes clear that the ICA module needs information about
the driver and the environment. Therefore, the DVE component sends this information to the
ICA module. The DVE component includes the DVEM (driver vehicle environment
monitoring) which uses several sensor information to detect defined driver states, driving and
environment situations and it includes the PM (profile manager) which manages the driver
preferences. Those two modules are combined in the DVE component because the
distribution strategy of that information might be the same and all those information are used
by the ICA to adapt the HMI output strategy.
It was recommended to separate the DVEM module in three modules (environment,
driver and vehicle), since it might be easier to integrate results from other IP's like
environment information from the PREVENT project.
The DVE information also is fed to the applications because some condition
dependent adaptations can only be performed by the application itself, e.g. if a ACC
application should warn earlier in case of high driver demand that is only known by the
application itself and not by the ICA
Furthermore the content of the DVE information was discussed. It was stressed out
that this information has to be generalised, which derives from sensor fusion raw material.
Thus, for example the driver demand will be provided in different levels which have to be
derived from several raw sensor information. The necessary conditions clearly depend on the
individual solutions which should be provided. Within AIDE, a first subset of conditions is
chosen which might be extended in the future work.
3.10.5. I/O device access:
In the first step, the AIDE architecture does not allow a direct access of the I/O
devices by the applications which is state of the art today.
Figure 4 illustrates the I/O device access principle. The application addresses virtual
device to present information to the driver. Thus, there is no difference from the application
point of view compared to today. The only difference is the availability for the driver, i.e. the
addressed virtual device or proxy do not effect the real output device. The ICA component
acts as a switching device and connects the proxy and the real device when it allows the
desired output.
This approach prevents the system from timing problems, i.e. if for example an output
has to be interrupted and a new, more important one has to be presented the ICA can switch
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