Project 1- Traffic Jam Assistant Feature

Problem Statement:

To develop one specific requirement of Traffic Jam Assistant algorithm which would predominantly feature in the IPC algorithm.Please note that the whole Traffic Jam Assistant is a very huge algorithm & only one small part of the logic is implemented here. Idea is to familiarize with concepts of Model Based Development in MATLAB Environment. The Project must be done keeping in mind the following processes & steps.

• This model must be developed in MATLAB Simulink as per MBD guidelines.
• Code Generation Profile must be in Embedded Coder.
• Simulink Data Dictionary must be created for the model & must be linked to the model.
• Model Advisor Report is mandatory & this will be followed by Code Generation.

Answers:

Input Signals:

Name of the Signal	Data Type	Range
Input_Voltage	uint8	0 - 255
Input_Switch	boolean	0 – 1
Enable_Display	uint8	0 - 255

Output Signal:

Name of the Signal	Data Type	Range
Output_Display	uint8	0 - 255

Calibration Signals:

Name of the Signal	Data Type	Range	Initial Value
VOLTAGE_MINIMUM_RANGE	uint8	0 – 255	30
VOLTAGE_MAXIMUM_RANGE	uint8	0 – 255	50
OFF_MODE	uint8	0 – 255	2
ON_MODE	uint8	0 – 255	1
STANDBY_MODE	uint8	0 – 255	3
INTERRUPT_1	boolean	0 – 1	1
INTERRUPT_2	boolean	0 - 1	1
NO_DISPLAY	uint8	0 – 255	0

Local Signal:

Name of the Signal	Data Type	Range
Optimum_Voltage	boolean	0 - 1

Simulink Data Dictionary

MODEL CREATION IN MATLAB SIMULINK

Requirement No 1:

• Input Signal “Input_Voltage” is compared against voltage values “VOLTAGE_MINIMUM_RANGE” & “VOLTAGE_MAXIMUM_RANGE”.
• Incoming input signal “Input_Voltage” must be greater than – equal to “VOLTAGE_MINIMUM_RANGE” and less than – equal to “VOLTAGE_MAXIMUM_RANGE”.
• Output signal from here is “Optimum_Voltage” which will be one of the inputs to the subsystem “DisplayUnit”.

Requirement No 2 (DisplayUnit Subsystem):

• Input Signals are “Optimum_Voltage”, “Input_Switch”,“Enable_Display”. Signal “Enable_Display” must be saturated between the range 0 – 7. Output signal from the subsystem is “Output_Display”.
• Input Signal “Enable_Display” is compared against pre – defined set of values in a multiport switch. Total data ports in the multiport switch is 5.
• Multiport switch inputs 1 & 2 is connected to calibration signal “ON_MODE”, Multiport switch inputs 3 & 4 is connected to calibration signal “OFF_MODE” while Multiport switch input 5 is connected to calibration signal “STANDBY_MODE”.
• The output from Multiport switch is connected to the first input port of the Switch block. The third input port of the Switch block is connected to the calibration signal “NO_DISPLAY”.
• Meanwhile NOT value of input signal “Input_Switch” is compared in an AND gate against input signal “Optimum_Voltage” and the output from comparing if calibration signals “INTERRUPT_1” & “INTERRUPT_2” are equal. The output of the AND gate is the second input of the switch block.
• The output from the switch block is “Output_Display”.

MODEL

/*
 * Event Support License -- for demonstration use and event support.  Not
 * for government, research, commercial, or other organizational use.
 *
 * File: Traffic_Jam_Assistancce_Feature.c
 *
 * Code generated for Simulink model 'Traffic_Jam_Assistancce_Feature'.
 *
 * Model version                  : 1.3
 * Simulink Coder version         : 9.7 (R2022a) 13-Nov-2021
 * C/C++ source code generated on : Mon Feb 27 23:57:51 2023
 *
 * Target selection: ert.tlc
 * Embedded hardware selection: Intel->x86-64 (Windows64)
 * Code generation objectives: Unspecified
 * Validation result: Not run
 */

#include "Traffic_Jam_Assistancce_Feature.h"
#include "rtwtypes.h"
#include "Traffic_Jam_Assistancce_Feature_private.h"

/* Exported data definition */

/* Definition for custom storage class: ExportToFile */
uint8_T Output_Display;                /* '/Switch' */

/* Const memory section */
/* Definition for custom storage class: Const */
const boolean_T INTERRUPT_1 = false;   /* Referenced by: '/Constant' */
const boolean_T INTERRUPT_2 = false;   /* Referenced by: '/Constant1' */
const uint8_T NO_DISPLAY = 0U;         /* Referenced by: '/Constant2' */
const uint8_T OFF_MODE = 2U;           /* Referenced by:
                                        * '/Constant5'
                                        * '/Constant6'
                                        */
const uint8_T ON_MODE = 1U;            /* Referenced by:
                                        * '/Constant3'
                                        * '/Constant4'
                                        */
const uint8_T STANDBY_MODE = 3U;       /* Referenced by: '/Constant7' */
const uint8_T VOLTAGE_MAXIMUM_RANGE = 50U;/* Referenced by: '/Constant1' */
const uint8_T VOLTAGE_MINIMUM_RANGE = 30U;/* Referenced by: '/Constant' */

/* Real-time model */
static RT_MODEL_Traffic_Jam_Assistan_T Traffic_Jam_Assistancce_Feat_M_;
RT_MODEL_Traffic_Jam_Assistan_T *const Traffic_Jam_Assistancce_Feat_M =
  &Traffic_Jam_Assistancce_Feat_M_;

/* Model step function */
void Traffic_Jam_Assistancce_Feature_step(void)
{
  /* local block i/o variables */
  boolean_T Optimum_Voltage;

  /* Logic: '/AND' incorporates:
   *  Constant: '/Constant'
   *  Constant: '/Constant1'
   *  Inport: '/Input_Voltage'
   *  RelationalOperator: '/GreaterThanOrEqual'
   *  RelationalOperator: '/GreaterThanOrEqual1'
   */
  Optimum_Voltage = ((Input_Voltage >= VOLTAGE_MINIMUM_RANGE) && (Input_Voltage <=
    VOLTAGE_MAXIMUM_RANGE));

  /* Switch: '/Switch' incorporates:
   *  Constant: '/Constant'
   *  Constant: '/Constant1'
   *  Inport: '/Input_Switch'
has popup