diff --git a/library/src/main/java/com/github/tbouron/shakedetector/library/ShakeDetector.java b/library/src/main/java/com/github/tbouron/shakedetector/library/ShakeDetector.java
index bce10cfd9d37b4773d12f6b87a93b089a9433836..a8aaa60f6b09ff637031aeaa297f80a32fe470d3 100644
--- a/library/src/main/java/com/github/tbouron/shakedetector/library/ShakeDetector.java
+++ b/library/src/main/java/com/github/tbouron/shakedetector/library/ShakeDetector.java
@@ -47,6 +47,7 @@ public class ShakeDetector implements ICategoryOrientationDataCallback {
     private ArrayList<SensorBundle> mSensorBundles;
     private Object mLock;
     private int direction = 1;
+    long interval = 500l;
     /**
      * 上一次检测的时间
      */
@@ -165,7 +166,7 @@ public class ShakeDetector implements ICategoryOrientationDataCallback {
             if (mSensorBundles.size() == 0) {
                 mSensorBundles.add(sensorBundle);
             } else if (sensorBundle.getTimestamp() - mSensorBundles.get(mSensorBundles.size() - 1)
-                    .getTimestamp() > INTERVAL) {
+                    .getTimestamp() > interval) {
                 mSensorBundles.add(sensorBundle);
             }
         }
@@ -176,7 +177,7 @@ public class ShakeDetector implements ICategoryOrientationDataCallback {
         synchronized (mLock) {
             long currentTime = System.currentTimeMillis();
             long diffTime = currentTime - mLastUpdateTime;
-            if (diffTime < INTERVAL) {
+            if (diffTime < interval) {
                 return;
             }
             mLastUpdateTime = currentTime;
@@ -205,7 +206,6 @@ public class ShakeDetector implements ICategoryOrientationDataCallback {
         }
     }
 
-    // 使用变化的精度
     @Override
     public void onAccuracyDataModified(CategoryOrientation categoryOrientation, int i) {
     }