diff --git a/src/components/PlaneStatus.vue b/src/components/PlaneStatus.vue
index d88c2c1..2b5103a 100644
--- a/src/components/PlaneStatus.vue
+++ b/src/components/PlaneStatus.vue
@@ -150,7 +150,7 @@ export default {
     // 飞机高度
     positionAlt () {
       if (this.plane && this.plane.planeState) {
-        return this.plane.planeState.positionAlt
+        return this.plane.planeState.position[0][2]
       }
       return null
     },
@@ -199,6 +199,9 @@ export default {
 
   },
   created () {
+  },
+  destroyed () {
+    clearInterval(this.isOnlineSetTimeout)
   }
 }
 </script>