3.3 - Provide Automatic Emergency Notification DFD
This DFD shows the processes that provide the Provide Automatic Emergency Notification facility within the Provide Vehicle Monitoring and Control function. The processes in this facility enable the vehicle to automatically inform the Manage Emergency Services function of its involvement in an incident.The key points about the facility are as follows:
- Automatic emergency notification provided in the event of an accident regardless of driver condition;
- Vehicle location and identity provided automatically.
There are two processes in this DFD:
a) Provide Communications Function (3.3.1)
b) Build Automatic Collision Notification Message (3.3.2)
These processes are designed to enable notification of an accident or other kind of emergency involving any combination of the driver, the vehicle, to be sent as soon as possible to the Manage Emergency Services function - see DFD 5. The data from the vehicle will be generated automatically by process (a), plus process (b) if the vehicle is carrying any cargo. This enables the data to reach the emergency services though process (a) even if the driver is unable to initiate the action. Although the processes depend on others in the facility for data, they will each operate continuously and independently so that the data can processed, stored, and accumulated as fast as possible bearing in mind the urgency with which their work has to be done.
DFD: 3.3 - Provide Automatic Emergency Notification
Parent DFD: 3 - Provide Vehicle Monitoring and Control
PSpecs in this DFD:
