Published December 30, 2015 © GPL3+

Driving Parameters Analysis System

Smart system for analyzing the driving skills of a person using IOT and Cloud Computing powered by Mediatek LinkIt One

AdvancedFull instructions provided2,606

Things used in this project

Hardware components

Seeed Studio Grove Starter Kit for LinkIt ONE

Rotary Angle Sensor

Software apps and online services

mt Cloud Sandbox

Online platform and more specifically, the smart phone application of Cloud Sandbox is used in this project endeavor

Arduino IDE

Story

"IOT of the people, by the people, for the people"

Well, that's the paraphrased context of quote that I would like to begin with explaining the detailed procedure pertaining to the 'Driving Parameters Analysis System' using Mediatek LinkIt One platform.

OVERVIEW

In view of the increasing mishaps and accidents due to the negligence of the driver, a precautionary monitoring system needs to be established. Hence, the solution 'Driving Parameters Analysis System' is put forth to facilitate the hassle-free transportation and the care that has to be perceived by every driver. With the incorporated concepts of Internet of Things and Cloud Computing, this system is deployed to analyze the driving skills of a person for application in many spheres.

Mediatek LinkIt One

DETAILED PROCEDURE OF THE MAKING

Of course, Mediatek LinkIt One with its well-served features of being offered with GSM, GPRS, Bluetooth, SD Cards, MP3/AAC Audio, GNSS and WiFi, the wearable and transit system based devices is well within the making.Let's explore on how to deploy the Driving Parameters Analysis System.

Using Mediatek LinkIt One

On getting started with LinkIt One, the best explanation can be followed in the portal as follows :

http://labs.mediatek.com/site/global/developer_tools/mediatek_linkit/get-started/windows_os_stream/get_hardware_software/index.gsp

Using Mediatek Cloud Sandbox

On deploying this system globally, Mediatek Cloud Sandbox enhances the cloud computing techniques with its wide range of built-in widgets, options and features.

Start by getting yourself registered on the portal :

https://mcs.mediatek.com/oauth/en/login

Now, create a prototype with the following information. Any name can be used and I am using here in accordance with my project development.

Click Save and you will observe the following data as shown in the picture:

At next, create data channel for GPS as follows:

Follow the same procedure in creating the other data channels.

Finally, click 'Create Test Device' on the right top portion and enter the following information. Here, I have mentioned 'LinkIt One for Driver'.

caption (optional)

Click Create.

Well, done ! Now under 'Data Channel', the view of all created channels is available for the test device. Make sure to note the Device ID and Device Key to use it in Arduino code. With an unique ID and key corresponding to the GPS location, the conception of 'connected cars' comes into play. In fact, any person relating to erroneous driving skills can be communicated to the other person driving nearby the vehicle so that he/she can be alert and respond appropriately.

Now, upload the Arduino code into LinkIt one and you will observe the status to be 'On line'. As an implementation testing, the rotary angle sensor is connected to the servo motor of the robotic car developed, whose DC Motor compared to the real vehicle's engine can be controlled accordingly based on the pattern of driving. The data channels will be found to be updating automatically.

Using Mediatek Cloud Sandbox - Smart Phone Application

Download the application from the link as follows:

https://play.google.com/store/apps/details?id=com.mediatek.iotcloud

Now, you will be able to observe the same updated data in the mobile platform.

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Thanks to Mediatek Cloud Sandbox application, your pattern of driving skills is well within your pocket.

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Establishing the alert system

"Prevention is better than cure" goes the saying. To go by, let's create an alert based system to prevent the accidents if the driving skills of a person is reportedly known to be poor, subjected to rash driving or high speed cases.

Under Trigger & Action, the user can create the various alerts as required.

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In the example presented, an email alert is created. On the values being reported above threshold levels, a warning mail is being pushed into the driver's inbox.

caption (optional)

Hurray ! Hope you had a great time with the making tutorial. Indeed, it was a blessing in disguise to share my insights with you guys.

Let's catch up with the video of the implementation testing.

APPLICATION SPHERES

• Driving skills of a person can be reported to facilitate a trusted mass transit system with relevance to school and college transportation, metropolitan and smart city bus network, cabs.etc

• Rash driving and speed violation cases will be automatically reported leading to cancellation of license in extreme situations, thus benefiting the license issuing organizations and regional transport corporations.

• Accidents due to carelessness of driver will not be subjected to insurance claims which will in turn enhance the provision with reference to skills of the driver.

As a result, accidents occurring due to negligence of driver can reduce in number since an overall precautionary system is established through continual monitoring of this proposed system. Urban areas in specific to Metropolitan and Smart cities will benefit to a great extent and can prove very useful in nations with high vehicle densities. Further, a good driver of an automobile powered by petrol or diesel will be subjected to a high fuel efficiency rate signifying the right pattern of driving. Hence, an eco-friendly nature of utilizing the resources as per the necessity in limited quantities is also enhanced in this system as an efficient measure of saving energy for the future.

As simple as that, kudos to you for knowing the implementation of the 'Driving Parameters Analysis System' using the essential aspects of Mediatek LinkIt One and enhanced prospects of Mediatek Cloud Sandbox.

That's probably the end of the road with accidents !

Perhaps, the beginning of a road with endless possibilities ...

Meet you all in another project stuff ! Thanks !!

Code

Driving Parameters Analysis System

// Driving Parameters Analysis System

//Header files required
//If not available, make sure to find them in Github repositories
#include <HttpClient.h>
#include <LTask.h>
#include <LWiFi.h>
#include <LWiFiClient.h>
#include <LDateTime.h>
#include <LGPRS.h>
#include <LGPRSClient.h>
#include <LGPRSServer.h>
#include <LGPS.h>

//Customize the data needed as per your specifications
#define WIFI_AP "your wifi name"
#define WIFI_PASSWORD "your wifi password"
#define DEVICEID "your device id"
#define DEVICEKEY "your device key"
#define SITE_URL "api.mediatek.com"

#define WIFI_AUTH LWIFI_WPA  
#define per 50
#define per1 3

gpsSentenceInfoStruct info;
char buff[256];
double latitude;
double longitude;
double spd;

char buffer_latitude[8];
char buffer_longitude[8];
char buffer_spd[8];
char buffer_sensor[8];

static unsigned char getComma(unsigned char num,const char *str)
{
  unsigned char i,j = 0;
  int len=strlen(str);
  for(i = 0;i < len;i ++)
  {
     if(str[i] == ',')
      j++;
     if(j == num)
      return i + 1; 
  }
  return 0; 
}

static double getDoubleNumber(const char *s)
{
  char buf[10];
  unsigned char i;
  double rev;
  
  i=getComma(1, s);
  i = i - 1;
  strncpy(buf, s, i);
  buf[i] = 0;
  rev=atof(buf);
  return rev; 
}

static double getIntNumber(const char *s)
{
  char buf[10];
  unsigned char i;
  double rev;
  
  i=getComma(1, s);
  i = i - 1;
  strncpy(buf, s, i);
  buf[i] = 0;
  rev=atoi(buf);
  return rev; 
}

//Esssential part of code
//GPS data processing
//Determining quantities latitude,longitude and speed
void parseDPAS(const char* DPASstr)
{
    int tmp, hour, minute, second, num ;
  if(DPASstr[0] == '$')
  {
    tmp = getComma(1, DPASstr);
    hour     = (DPASstr[tmp + 0] - '0') * 10 + (DPASstr[tmp + 1] - '0');
    minute   = (DPASstr[tmp + 2] - '0') * 10 + (DPASstr[tmp + 3] - '0');
    second    = (DPASstr[tmp + 4] - '0') * 10 + (DPASstr[tmp + 5] - '0');
    
    sprintf(buff, "UTC timer %2d-%2d-%2d", hour, minute, second);
        
    tmp = getComma(2, DPASstr);
    latitude = getDoubleNumber(&DPASstr[tmp])/100.0;
    int latitude_int=floor(latitude);
    double latitude_decimal=(latitude-latitude_int)*100.0/60.0;
    latitude=latitude_int+latitude_decimal;
    tmp = getComma(4, DPASstr);
    longitude = getDoubleNumber(&DPASstr[tmp])/100.0;
    int longitude_int=floor(longitude);
    double longitude_decimal=(longitude-longitude_int)*100.0/60.0;
    longitude=longitude_int+longitude_decimal;
    
    sprintf(buff, "latitude = %10.4f, longitude = %10.4f", latitude, longitude);
    tmp = getComma(7, DPASstr);
    spd = getDoubleNumber(&DPASstr[tmp]);    
    sprintf(buff, "speed = %F", spd);
    
  }
  else
  {
    Serial.println("Not get data"); 
  }
}


void recdat() 
{
  LGPS.getData(&info);
  //Serial.println((char*)info.DPAS); 
  parseDPAS((const char*)info.DPAS);
}

//AP connection
void AP_connect()
{
  Serial.print("Connecting to AP...");
  while (0 == LWiFi.connect(WIFI_AP, LWiFiLoginInfo(WIFI_AUTH, WIFI_PASSWORD)))
  {
    Serial.print(".");
    delay(500);
  }
  Serial.println("Success!");
  
  Serial.print("Connecting site...");

  while (!drivepar.connect(SITE_URL, 80))
  {
    Serial.print(".");
    delay(500);
  }
  Serial.println("Success!");
  delay(100);
}


void getconnectInfo()
{
    drivepar.print("GET /mcs/v2/devices/");
  drivepar.print(DEVICEID);
  drivepar.println("/connections.csv HTTP/1.1");
  drivepar.print("Host: ");
  drivepar.println(SITE_URL);
  drivepar.print("deviceKey: ");
  drivepar.println(DEVICEKEY);
  drivepar.println("Connection: close");
  drivepar.println();
  
  delay(500);

  int errorcount = 0;
  Serial.print("waiting for HTTP response...");
  while (!drivepar.available())
  {
    Serial.print(".");
    errorcount += 1;
    delay(150);
  }
  Serial.println();
  int err = http.skipResponseHeaders();

  int bodyLen = http.contentLength();
  char c;
  int ipcount = 0;
  int count = 0;
  int separater = 0;
  while (drivepar)
  {
    int v = (int)drivepar.read();
    if (v != -1)
    {
      c = v;
      //Serial.print(c);
      connection_info[ipcount]=c;
      if(c==',')
      separater=ipcount;
      ipcount++;    
    }
    else
    {
      Serial.println("no more content, disconnect");
      drivepar.stop();

    }
    
  }


  int i;
  for(i=0;i<separater;i++)
  {  ip[i]=connection_info[i];
  }
  int j=0;
  separater++;
  
  for(i=separater;i<21 && j<5 && i < ipcount;i++)
  {  port[j]=connection_info[i];
     j++;
  }
  
  
  portnum = atoi (port);

} 

void connectTCP()
{
  
  c.stop();
  Serial.print("Connecting to TCP...");
  while (0 == c.connect(ip, portnum))
  {
    Serial.println("Re-Connecting to TCP");    
    delay(1000);
  }
  c.println(tcpdata);
  c.println();
  Serial.println("Success!");
} 

void heartBeat()
{
  Serial.println("send TCP heartBeat");
  c.println(tcpdata);
  c.println();
    
}



void uploadstatus()
{
  while (!drivepar.connect(SITE_URL, 80))
  {
    Serial.print(".");
    delay(500);
  }
  
  delay(100);
  
  if(digitalRead(13)==1)
    upload_led = "ENGINE_MODE_DISPLAY,,1";
  else
    upload_led = "ENGINE_MODE_DISPLAY,,0";
  
  int thislength = upload_led.length();
  HttpClient http(drivepar);
  drivepar.print("POST /mcs/v2/devices/");
  drivepar.print(DEVICEID);
  drivepar.println("/datapoints.csv HTTP/1.1");
  drivepar.print("Host: ");
  drivepar.println(SITE_URL);
  drivepar.print("deviceKey: ");
  drivepar.println(DEVICEKEY);
  drivepar.print("Content-Length: ");
  drivepar.println(thislength);
  drivepar.println("Content-Type: text/csv");
  drivepar.println("Connection: close");
  drivepar.println();
  drivepar.println(upload_led);
  delay(500);

  int errorcount = 0;
  while (!drivepar.available())
  {
    Serial.print(".");
    delay(100);
  }
  int err = http.skipResponseHeaders();
  int bodyLen = http.contentLength();
  
  while (drivepar)
  {
    int v = drivepar.read();
    if (v != -1)
    {
      Serial.print(char(v));
    }
    else
    {
      Serial.println("no more content, disconnect");
      drivepar.stop();
    }
    
  }
  Serial.println();
}


//Data streaming to Mediatek Cloud Sandbox
void transdat(){

  while (!drivepar.connect(SITE_URL, 80))
  {
    Serial.print(".");
    delay(500);
  }
  
  delay(100);


float sensor = analogRead(A0);
  Serial.printf("latitude=%.4f\tlongitude=%.4f\tspd=%.4f\tsensor=%.4f\n",latitude,longitude,spd,sensor);
  
  if(latitude>-90 && latitude<=90 && longitude>=0 && longitude<360)
  { 
    sprintf(buffer_latitude, "%.4f", latitude);
    sprintf(buffer_longitude, "%.4f", longitude);
    sprintf(buffer_spd, "%.4f", spd);
    sprintf(buffer_sensor, "%.4f", sensor);
    
  }
  String upload_GPS = "GPS,,"+String(buffer_latitude)+","+String(buffer_longitude)+","+String(buffer_spd)+","+String(buffer_sensor)+","+"0"+"\n"+"LATITUDE,,"+buffer_latitude+"\n"+"LONGITUDE,,"+buffer_longitude+"\n"+"SPEED,,"+buffer_spd+"\n"+"STEERING_ANGLE,,"+buffer_sensor;
  int GPS_length = upload_GPS.length();
  HttpClient http(drivepar);
  
  drivepar.print("POST /mcs/v2/devices/");
  drivepar.print(DEVICEID);
  drivepar.println("/datapoints.csv HTTP/1.1");
  drivepar.print("Host: ");
  drivepar.println(SITE_URL);
  drivepar.print("deviceKey: ");
  drivepar.println(DEVICEKEY);
  drivepar.print("Content-Length: ");
  drivepar.println(GPS_length);
  drivepar.println("Content-Type: text/csv");
  drivepar.println("Connection: close");
  drivepar.println();
  drivepar.println(upload_GPS);
  delay(500);

  int errorcount = 0;
  
  while (!drivepar.available())
  {
    Serial.print(".");
    delay(100);
  }
  int err = http.skipResponseHeaders();
  int bodyLen = http.contentLength();
  
  while (drivepar)
  {
    int v = drivepar.read();
    if (v != -1)
    {
      Serial.print(char(v));
    }
    else
    {
      Serial.println("no more content, disconnect");
      drivepar.stop();
    }
    
  }
  Serial.println();
}
LGPRSClient c;
unsigned int rtc;
unsigned int lrtc;
unsigned int rtc1;
unsigned int lrtc1;
char port[4]={0};
char connection_info[21]={0};
char ip[15]={0};             
int portnum;
int val = 0;
String tcpdata = String(DEVICEID) + "," + String(DEVICEKEY) + ",0";
String tcpcmd_led_on = "ENGINE_MODE_CONTROL,1";
String tcpcmd_led_off = "ENGINE_MODE_CONTROL,0";
String upload_led;

LGPRSClient drivepar;
HttpClient http(drivepar);


//Setup
void setup()
{
  pinMode(13, OUTPUT);
  
  LTask.begin();
  LWiFi.begin();
  
  Serial.begin(115200);
  LGPS.powerOn();
  AP_connect();
  getconnectInfo();
  connectTCP();
  
  Serial.println("...");
}


//Loop
void loop()
{
  String tcpcmd="";
  
  while (c.available())
   {
      int v = c.read();
      if (v != -1)
      {
        Serial.print((char)v);
        tcpcmd += (char)v;
        if (tcpcmd.substring(40).equals(tcpcmd_led_on)){
          digitalWrite(13, HIGH);
          Serial.print("Switch LED ON ");
          tcpcmd="";
        }
        else if(tcpcmd.substring(40).equals(tcpcmd_led_off)){  
          digitalWrite(13, LOW);
          Serial.print("Switch LED OFF");
          tcpcmd="";
        }
      }
   }

  LDateTime.getRtc(&rtc);
  if ((rtc - lrtc) >= per) {
    heartBeat();
    lrtc = rtc;
  }
  
  LDateTime.getRtc(&rtc1);
  if ((rtc1 - lrtc1) >= per1) {
    
    uploadstatus();
    recdat();
    transdat();
    lrtc1 = rtc1;
  }
 
}

Credits

Vinith Kannan A

2 projects • 16 followers