Project 1 (Mini Project on Vehicle Direction Detection

                                                                    EV Live Batch 21.

    1 Aim:

  

     Requirement - 1:

• Steering wheel input as yaw rate (Signal name: SteeringWheel_YawDegreeInput) is the input for this system.
• This is compared against 3 angular values, one each for left turn, right turn & straight drive (Calibration Values: Right_Turn_AngularLimit, Left_Turn_AngularLimit, Straight_Drive_Steering_Angle) to say which specific direction the steering wheel is turning towards.
• Use switch blocks to compare & develop this requirement. Keep this requirement in a subsystem & output of this requirement is a local signal (Signal Name: Vehicle_Turn_Status).

    Requirement – 2:

• Keep this requirement as a separate subsystem. Inputs to this requirement are local signal from requirement 1 (Signal Name: Vehicle_Turn_Status) & an input signal from camera (Signal Name: CameraInput_RoadSign), which confirms the occurrence of a road sign.
• Signal Vehicle_Turn_Status is compared against calibration values (Calibration Values: RightTurn_RoadSign, LeftTurn_RoadSign, Straight_RoadSign), if each of them is found equal, then each of the three corresponding output is compared against the camera input signal,
• Using a logical operator block, only one among them is finally given as output signal (Signal Name: Vehicle_Direction_Indicator).

     Objective of Mini Project:

1. Development of MATLAB Simulink model as per requirement.
2. Tag the requirements to the simulink model; tagging requirement 1 & requirement 2 to their corresponding subsystems is fine.
3. MBD compliant changes, Data Dictionary creation & code generation is added advantage, and that is not scope of this project.
4. If choosing code generation, Storage class for Input signals: ImportedExtern; Storage class for Output signal: Export to File; Storage class for local signals: localizable; Storage class for calibration signals: Const.
5. Choose sample time for all signals as 0.01s

     Signals & Calibration Data List:

Signal / Calibration Name	Signal Type	Data Type	Dimension	Min	Max	Initial Value	Units
SteeringWheel_YawDegreeInput	Input	Int16	1	-180	180	-	Deg
CameraInput_RoadSign	Input	Boolean	1	0	1	-	-
Vehicle_Turn_Status	Local	Int16	1	-180	180	-	Deg
Right_Turn_AngularLimit	Calibration	Int16	[1 1]	-180	180	30	Deg
Left_Turn_AngularLimit	Calibration	Int16	[1 1]	-180	180	-120	Deg
Straight_Drive_Steering_Angle	Calibration	Int16	[1 1]	-180	180	0	Deg
RightTurn_RoadSign	Calibration	Int16	[1 1]	-180	180	30
LeftTurn_RoadSign	Calibration	Int16	[1 1]	-180	180	-120
Straight_RoadSign	Calibration	Int16	[1 1]	-180	180	0
Vehicle_Direction_Indicator	Output	Boolean	1	0	1	-	-

    Test_Case:

     

=> First we define this Test_case values to Vehicle_direction.  

=> Here I created step wave form 0 to 1 sec soon on I take 4 test cases.

    Object:

     => Before we created the SLDD file, Let's we take a Vehicle_direction simulink block, Here we go step wise

     

   => Here we take Vehicle_direction simulink block in that go to modeling => link to data dictionary.

    

    => When selected the link to data dictionary we got this model properties in this we create the new data              dictionary and apply.

     

   => When selected applied data dictionary => open Model Explorer, Here we can Design data.

    Model Advisor:

   => Here we checking model in subsystem in By Task.

   => we get report on model advisor.

    Simulink Model:

      

   => Here we created Vehicle_Direction Block connect two input and one output.

   => Here we checking the resolving two input and one output.

    

    => In this Vehicle_Direction Block created subsystem, In this subsystem created Requirement 1 and2.

    => Here we connect input and output both.

    Vehicle_Direction Block Requirement 1:

     

    => Here SteeringWheel_YawDegreeInput comparing 3 angular values Left_Turn, Right_Turn, &                           Straight_Turn drive.

    => Here range streeing wheel angle is -180 deg to +180 deg

    => Here Right_Turn angle is 30 deg (Turning right positive value)

                  Left_Turn angle is -120 deg (Turning left negative value)

                  Straight_Turn angle is 0 deg (means going to stright)

     (i) Condition ~=0:

         If we give positive value or nagative value the true value will go to the output and we give exactly

         Zero in input the false value will go the output.

      (ii) Condition >0:

           Straight not positive and not negative it's means that going to Left_Turn angularlinit sent to the                     output.

      Vehicle_Direction Block Requirement 2:

     

   => This Vehicle_Turn_Status compary with 3 roadsig like: RightTurn_RoadSign

                                                                                        LeftTurn_RoadSign

                                                                                        Straight_RoadSign

   => The RightTurn_RoadSign match (30) then output will be 1

         The LeftTurn_RoadSign match (-120) then output will be 1

          The Straight_RoadSign match (0) then output will be 1.

   => Here CameraInput_RoadSign is on then only output  AND gate will be 1.

   Test_Harness_MIL_Case:

    

   => Here we create Vehicle_Direction Block Harness and comparying actually output and expected output.

    

   => Here I Import file  Excel sheet  from signal builder, so this is the output.

   => What were we given Excel sheet  in present signal builder output.

    SIL_Test: 

    

   => In this Vehicle_Direction link with the code folder, when give input it's go to the C code.

   => The output from the C code generated, Here we testing generated code throught the SIL block.

    Result:

   

        => This is the actually here 0 to 1 sec it's right actually output is 1,0,0.

     

      => This is the expected output wave form constant '0'.