Project 1 (Mini Project on Vehicle Direction Detection

Aim : - To develop MATLAB Simulink model of Vehicle Direction Indicator

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 The 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 the 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

Given,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	-	-

Based on the given Signal & Calibration list SLDD File is Created and attached

Matlab model is created and Named as Vehicle_Direction_Indicator

The Two requirements (requirement_1 and requirement_2)are kept in the subsystem named as Subsystem_Vehicle_Direction_Indicator.there are two inputs connected to the subsystem one is SteeringWheel_YawDegreeInput and the other is CameraInput_RoadSign and a single output is therein the subsystem that is Vehicle_Direction_Indicator. The inner view of the subsystem is shown below

As Per The requirement, two subsystems are there in the subsystem_Vehicle_Direction_Indicator as shown below

Inside the requirement 1

Based on the SteeringWheel_YawDegreeInput value two switches are controlled the value of the input is greater than 30 means the vehicle turn status is right to turn,if it isbelow30 and greater than zero means it is Left turn and if it equals to zero means the straight drive

Inside the requirement 2

The relational operator is used to compare the value of output from the requirement with Right, left, and straight road signs individually. Then by using the Logical gate and those values received from the relational operators and that values are connected to the mux block and given to the output. While running the MATLAB Model it running without error

Conclusion

SLDD File and Simulink model created as per requirement and attached