eCall reception and visualisation
eCall is automatically picked up due to the auto answer function. On the operator screen calling line number and eCall icon is displayed. Special acoustic notification can be configured.
Event form opening
Operator opens on the screen the form for new event data entry. In the sub-form of “telephone detail” call info and MSD are displayed. Location and vehicle direction are handed over to the GIS client. GIS displays these data and recent vehicle location n-1 (n-2) as well.
Proposal of data interpretation
Operator is notified of eCall data quality and credibility by means of key MSD value (automatic activation, test call, trusted position).
Even in case that this information cannot be confirmed by voice communication with passengers, interpretation is as follows:
eCall was activated automatically – it is probably a traffic collision
eCall was activated manually – it can be ether traffic collision or other type of incident
eCall is test call – event classification is predefined as technological test
if position credibility is impeached, then automatisms are stopped
Process automation
Operator can take control of status of all started automatisms.
Automatic matching caller position with event position
Control bits:
Automatic activation = Yes
Position Can Be Trusted = True
Automatic classification
Control bits:
Automatic activation = Yes
Test call = No
System automatically set up predefined classification “traffic accident” for all rescue forces (Fire Rescue, Ambulance, and Police)
Automatic activation = Yes
Test call = Yes
System automatically set up predefined classification “technological test”.
Automatic regionalisation
If caller position is matched with event positron, system finds out regionalisation rule for the road (road + km + direction) that has been found as probable road where vehicle was moving. In case that the rule doesn’t exist or such a road is not found, system takes a nearest urban area accordingly to GPS position and offers regionalisation rule based on a real regionalisation.
GIS visualisation
Call taker application sends position and direction information to the GIS.
In case that process of automatic classification is deactivated, operator takes out the classification manually from the menu.
Event position determination
By means of line topography if probable road is known
If probable road is not found, then event position is determined as a call position point + urban area, to which the call position point belongs – it means determination by the help of address topography
Call taker application switches over topography folds according to the event position determination
Regionalisation
After event positron is fixed a regionalisation can start. If road number+ km + direction is available then line regionalisation is done. If t is not available, then areal regionalisation based on urban area is used.
If vehicle occupants communicate, operator completes information as follows:
communication level (communicates / doesn’t communicate)
call back number (alternative to IVS number)
other remarks (e.g. caller name)
Event saving and dispatch
Operator saves an event and system automatically sends data record to the Emergency Control Centre system of rescue forces and to the Traffic Management System.
Request SEND MSD
Procedure description:
Operator evaluates the data in the MSD are inadequate, or otherwise applying the update (e.g. corrupted data, the position is marked as unreliable).
Operator notifies the caller that voice communication will be interrupted.
Operator presses "Request MSD" button.
In call sub-form a running MSD query is signalised
call is automatically routed to the IVR (disappears from the phone software)
after MSD is received, call is routed back to the operator workplace, where the call was originally handled - in SW phone call is ringing
this call is indicated by the Call Agent as a call from the previously adopted and broken eCall
data from the IVR are processed by eCall Centre module meanwhile, this module informs dispatching application which reads the updated data
operator will answer call automatically – thus voice communication with the caller will be restored
Operator notifies the caller in distress to restore voice communication.
PSAP Call back
This is a situation where the call is interrupted or there is need from another reason to join the car crew. If the operator uses PSAP call back function (i.e. for call back is used a number which came from the initial call) he will be able to request for delivery of MSD.
Procedure description:
Operator uses the option from the context menu item above telephone number in the property grid with call properties and chooses "Call back" option.
After creating a connection is set up, application automatically connects an outgoing call to the event.
Operator has dispatcher has now again possibility to seek re-sending MSD.
MSD received will be appended to the original call.
Figure 18: eCall Operational Workflow (Czech Republic)
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