目前進度

我們使用G-sensor程式撰寫"酒醉判定"

計畫是使用G-sensor之加速度來判定是否為酒駕

當加速度大於一定得數值並在短時間內累計三次則判定為酒駕

目前進度已完成項目:

1.      三軸重力之感測

2.      抓取三軸之數據

3.      抓取ROLL之最大值(g的最大值)

4.      時間的計時

以下為G-seneor部分程式

 @Override

     public void onCreate(Bundle savedInstanceState)//

     {                                                                              //保存當前的訊息or資料

          super.onCreate(savedInstanceState);              //

          /* 取得感測器服務 */

          mSensorManager = (SensorManager)getSystemService(Context.SENSOR_SERVICE);

        

          /* 註冊加速度監聽器，並可設定感測器類型及其它設定 */

          mSensorManager.registerListener(mSensorListener,

          mSensorManager.getDefaultSensor(Sensor.TYPE_ACCELEROMETER),

          SensorManager.SENSOR_DELAY_FASTEST);

          setContentView(R.layout.main);

          textview1 = (TextView)findViewById(R.id.text1);

          textview2 = (TextView)findViewById(R.id.text2);

          button_1=(Button)findViewById(R.id.button1);

          button_1.setOnClickListener(Handler);

         

     }

   

     private Button.OnClickListener Handler=new Button.OnClickListener()

     {

             public void onClick(View v)

             {    

                      startTime = System.currentTimeMillis();//取得目前時間

                      mHandlerTime.postDelayed(timerRun, 0);//計算目前已過秒數

             }

     };

    

     

     private final SensorEventListener mSensorListener = new SensorEventListener()

     {   

             

          public void onSensorChanged(SensorEvent se)

          {

                 

              x = se.values[0];

              y = se.values[1];

              z = se.values[2];

              NumberFormat nf = NumberFormat.getInstance();

              nf.setMaximumFractionDigits(2);

           

              textview1.setText("x: "+ nf.format(x) +", y: "+ nf.format(y) +", z: " + nf.format(z)+",max:"+nf.format(temp));

             

              if(z>temp)

                      {

                              temp=z;                            

                      }

                      System.out.print(temp);                                

          }         

       

          public void onAccuracyChanged(Sensor sensor, int accuracy)

          {

          }

     };

   

     @Override

     protected void onResume()

     {

          super.onResume();

          /* 註冊監聽器 */

          mSensorManager.registerListener(mSensorListener,

          mSensorManager.getDefaultSensor(Sensor.TYPE_ACCELEROMETER),

          SensorManager.SENSOR_DELAY_FASTEST);

     }

   

     @Override

     protected void onStop()

     {

      /* 註銷監聽器 */

          mSensorManager.unregisterListener(mSensorListener);

          super.onStop();

     }

    

       

     private final Runnable timerRun = new Runnable()

     {

       public void run()

       {

               Long spentTime = System.currentTimeMillis() - startTime;

               Long minius = (spentTime/1000)/60;

               Long seconds = (spentTime/1000) % 60;

               textview2.setText("time:"+minius+"分"+seconds+"秒");

               mHandlerTime.postDelayed(this, 1000);

       }

     };