diff --git a/src/App.vue b/src/App.vue
index 0370c1b67c7114e5b0657dac54aba7da597d3912..45699d13a524f83c70f9af792c22afe989033851 100644
--- a/src/App.vue
+++ b/src/App.vue
@@ -7,10 +7,29 @@
 
 <script>
 
+import { Message } from 'element-ui'
+
 export default {
   name: 'App',
   components: {
     // NewsDialog
+  },
+  computed: {
+    deviceId() {
+      return this.$store.state.dataPageData.deviceId
+    }
+  },
+  watch: {
+    deviceId: {
+      immediate: true,
+      handler(newVal, oldVal) {
+        if (newVal) {
+          console.log(newVal)
+          Message.warning({ message: `安检门：${newVal}掉线了` })
+        }
+      },
+      deep: true
+    }
   }
 }
 </script>