Project 1 (Mini Project on Vehicle Direction Detection

Aim: Development of MATLAB Simulink model for Vehicle Direction Determination.

Description:

Step 1: Subsystem “Direction_Determination” is created with below inputs and output

1. Input 1: SteeringWheel_YawDegreeInput
2. Input 2: CameraInput_RoadSign
3. Output 1: Vehicle_Direction_Indicator

Step 2: Two subsystems are created as per requirement.

1. Subsystem “SteeringWheel_Pos_Determination” as per Requirement 1.
2. Subsystem “CameraInput_Pos_Determination” as per Requirement 2

Step 3: Subsystem “SteeringWheel_Pos_Determination” as per Requirement 1

• Following are the input and output
  • Input 1: SteeringWheel_YawDegreeInput
  • Output 1: Vehicle_Turn_Status

Logic:

• Input 1: SteeringWheel_YawDegreeInput is compared with constant >= 30 such that its output is a Boolean value.
• The above output is then compared with Right_Turn_AngularLimit, Left_Turn_AngularLimit and Straight_Drive_Steering_Angle using switch blocks.
• The output is Boolean data with signal named as “Vehicle_Turn_Status”.

Step 4: Subsystem “CameraInput_Pos_Determination” as per Requirement 2

• Following are the input and output
  • Input 1: Vehicle_Turn_Status
  • Input 2: CameraInput_RoadSign
  • Output 1: Vehicle_Direction_Indicator

• Input 1: Vehicle_Turn_Status is compared with calibration values RightTurn_RoadSign, LeftTurn_RoadSign, Straight_RoadSign using ‘equal to’ relational operator.

• Then each of the three corresponding output is compared against the camera input signal using ‘equal to’ relational operator to get 3 out signals - Right_Turn, Left_Turn and Straight_Drive respectively.

• Using ‘OR’ logical operator block, only one among mentioned outputs is finally given as output signal “Vehicle_Direction_Indicator”.

Step 5: New SLDD is created and linked to Data Dictionary.

Step 6: Model Properties is checked and required changes are made.

Step 7: Model is compiled to check for any errors. No errors found.

Step 8: Model Advisory report is generated.

Step 9: System target file is changed to ert.tlc. Code C is build and generated.

Justification:

• The output is generated as a Boolean signal using ‘OR’ logical operator block, only one among mentioned outputs (- Right_Turn, Left_Turn and Straight_Drive respectively) is finally given as output signal “Vehicle_Direction_Indicator”.