Project 1 (Mini Project on Vehicle Direction Detection
Aim:
To create a Simulink model of Vehicle Direction Detection as per the Requirement data.
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_Signal 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).
Objectives of the project:
- Development of MATLAB Simulink model as per requirement.
- Tag the requirements to the simulink model; tagging requirement 1 & requirement 2 to their corresponding subsystems is fine.
- MBD compliant changes, Data Dictionary creation & code generation is added advantage, and that is not scope of this project.
- 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.
- 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 |
- |
- |
first wee need to link to data dictonary and creating the sldd file as per given requirements
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_Signal 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).
in this Requirement – 1 and 2 we created as single subsystem
in the configuration parameter we select the typr as fixed and the sample time is 0.01 and code generation we select the system target file as (ert.tlc) for code generation
for code generation we ne to check the model advicer check and select modeling standard for mab guidlines
and goto app and select the embedded coder and select the generate code
/*
* File: miniproject_mbd.c
*
* Code generated for Simulink model 'miniproject_mbd'.
*
* Model version : 1.2
* Simulink Coder version : 9.5 (R2021a) 14-Nov-2020
* C/C++ source code generated on : Thu Jul 28 18:45:45 2022
*
* Target selection: ert.tlc
* Embedded hardware selection: Intel->x86-64 (Windows64)
* Code generation objectives: Unspecified
* Validation result: Not run
*/
#include "miniproject_mbd.h"
#include "miniproject_mbd_private.h"
/* Exported data definition */
/* Const memory section */
/* Definition for custom storage class: Const */
const int16_T LeftTurn_RoadSign = -120;/* Referenced by: '/Constant' */
const int16_T Left_Turn_AngularLimit = -120;/* Referenced by: '/Constant2' */
const int16_T RightTurn_RoadSign = 30; /* Referenced by: '/Constant' */
const int16_T Right_Turn_AngularLimit = 30;/* Referenced by: '/Constant' */
const int16_T Straight_Drive_Steering_Angle = 0;/* Referenced by: '/Constant1' */
const int16_T Straight_RoadSign = 0; /* Referenced by: '/Constant' */
/* External outputs (root outports fed by signals with default storage) */
ExtY_miniproject_mbd_T miniproject_mbd_Y;
/* Real-time model */
static RT_MODEL_miniproject_mbd_T miniproject_mbd_M_;
RT_MODEL_miniproject_mbd_T *const miniproject_mbd_M = &miniproject_mbd_M_;
/* Model step function */
void miniproject_mbd_step(void)
{
/* local block i/o variables */
int16_T Vehicle_Turn_Status;
/* Switch: '/Switch' incorporates:
* Inport: '/SteeringWheel_YawDegreeInput '
* Switch: '/Switch1'
*/
if (SteeringWheel_YawDegreeInput > 0) {
/* Switch: '/Switch' incorporates:
* Constant: '/Constant'
*/
Vehicle_Turn_Status = Right_Turn_AngularLimit;
} else if (SteeringWheel_YawDegreeInput > 0) {
/* Switch: '/Switch1' incorporates:
* Constant: '/Constant1'
* Switch: '/Switch'
*/
Vehicle_Turn_Status = Straight_Drive_Steering_Angle;
} else {
/* Switch: '/Switch' incorporates:
* Constant: '/Constant2'
* Switch: '/Switch1'
*/
Vehicle_Turn_Status = Left_Turn_AngularLimit;
}
/* End of Switch: '/Switch' */
/* Outport: '/Vehicle_Direction_Indicator' incorporates:
* Constant: '/Constant'
* Constant: '/Constant'
* Constant: '/Constant'
* Inport: '/CameraInput_RoadSign'
* Logic: '/AND'
* Logic: '/AND1'
* Logic: '/AND2'
* RelationalOperator: '/Compare'
* RelationalOperator: '/Compare'
* RelationalOperator: '/Compare'
*/
miniproject_mbd_Y.Vehicle_Direction_Indicator[0] = ((Vehicle_Turn_Status ==
RightTurn_RoadSign) && CameraInput_RoadSign);
miniproject_mbd_Y.Vehicle_Direction_Indicator[1] = ((Vehicle_Turn_Status ==
LeftTurn_RoadSign) && CameraInput_RoadSign);
miniproject_mbd_Y.Vehicle_Direction_Indicator[2] = ((Vehicle_Turn_Status ==
Straight_RoadSign) && CameraInput_RoadSign);
}
/* Model initialize function */
void miniproject_mbd_initialize(void)
{
/* (no initialization code required) */
}
/* Model terminate function */
void miniproject_mbd_terminate(void)
{
/* (no terminate code required) */
}
/*
* File trailer for generated code.
*
* [EOF]
*/
Tag the requirements to the simulink model; tagging requirement 1 & requirement 2 to their corresponding subsystems is fine.
create a word document for tagging the requirements and right clixk the subsystem and select the requirement
conclusion
henxe we created a model as per the given requirement and generated a c code and Tag the requirements to the simulink model