Low Level Function
5.15.1.3 Detect Pedestrians near to Host Vehicle

Overview

This Function shall be capable of providing the following facilities:

(1) The ability to take responsibility for processing information from sensors that detect the presence of Pedestrians near to the Host Vehicle, i.e. the Vehicle in which it is operating.
(2) The ability to process the sensor data to determine the location of the Pedestrians (including Vulnerable Road Users (VRU's)) relative to the Host Vehicle and their probable trajectory.
(3) Once processing is complete, the ability to send the data in digital form to the Determine and store local Host Vehicle Conditions Function.

Functional Requirements

(a) continuously monitor the flow of input data
(b) convert the data in (a) into a digital form to show the location of pedestrians, including those classed as Vulnerable Road User (VRU), relative to the host vehicle and their probably trajectory
(c) whenever a new pedestrian is detected and/or at other intervals, send the results of (b) to the Determine and store local Host Vehicle conditions function in the vehicle detected nearby data flow.

Diagrams

The Diagram(s) is (are) the diagram(s) where you can find the function :
  • DFD 5.15.1 Provide Detection for the Vehicle Surroundings
  • Functional Tree of Area 5

    • Parent Higher Level Function

    Input logical dataflows

    Output logical dataflows

    User needs

    Number

    Description

    7.4.1.23
    Hazard Detection - The system shall be able to detect presence of other vehicles and traffic participants in the vicinity of the host vehicle, and determine its type, e.g. car, lorry, emergency, maintenance, cycle, pedestrian.
    7.4.1.34
    Traffic Queue Detection - The system shall be able to inform drivers, via in-vehicle and road-side devices, of slow moving obstacles (e.g. person, animal, slow vehicle) and advise on the appropriate action (e.g. speed and lane).
    7.4.6.17
    The system shall be able to warn the driver of the host vehicle, via an in-vehicle device, of any collisions that could occur with other vehicles and/or VRU that are approaching an urban intersection.
    7.4.6.18
    The system shall be able to use a road-side device to warn drivers of any collisions that could occur with other vehicles and/or VRU that are approaching an urban intersection.
    7.4.7.1
    The system shall be able to warn the driver, via an in-vehicle device, that a VRU has been detected in a dangerous location by a system at the road side.
    7.4.7.2
    The system shall be able to warn the driver, via an in-vehicle device, that a VRU has been detected in a dangerous location by a system on the host vehicle.