如何以步长和距离计算速度TYPE_STEP_COUNTER

Question

I need to calculate speed with the information of steps and distance cover ! Can anyone please guide me how can i do that one way i think of as using formula S = VT but in this case i need time per step in order to calculate the velocity per step ..I have already looked at stackoverflow but did not solve the issue. Thanks.

In this block of code i am calculating step count by TYPE_COUNTER_STEP and distance by taking person height and multiply it by 0.45 and then multiply it with steps

public void registerForSensorEvents() { SensorManager sManager = (SensorManager) getSystemService(Context.SENSOR_SERVICE);

// Step Counter
sManager.registerListener(new SensorEventListener() {

                              @Override
                              public void onSensorChanged(SensorEvent event) {
                                  float steps = event.values[0];

                                  arrayList.add((int)steps);
                                  getCurrentStepValue = (int) steps ;
                                  stepValue.setText(getCurrentStepValue - arrayList.get(0) + "");

                                  double distaneCovered = step_length * (getCurrentStepValue - arrayList.get(0));

                                  distanceValue.setText("" + distaneCovered);


                              }

                              @Override
                              public void onAccuracyChanged(Sensor sensor, int accuracy) {

                              }
                          }, sManager.getDefaultSensor(Sensor.TYPE_STEP_COUNTER),
        SensorManager.SENSOR_DELAY_NORMAL);

}

Answer 1

You should take an initial stamp with first step, in second step take the difference between "now" and initial stamp, then you'll have time/step, reset initial stamp to "now" and do the same in following steps.

As well you can simply have a timer and calculate number of steps (so distance) in X seconds instead of having time/step, it would depend on what you really need to do.