diff --git a/src/assets/js/RouteManageViewer.js b/src/assets/js/RouteManageViewer.js
index 9906c12..c0d64e2 100644
--- a/src/assets/js/RouteManageViewer.js
+++ b/src/assets/js/RouteManageViewer.js
@@ -108,7 +108,6 @@ export default class RouteManageViewer {
                     const ellipsoid = this.viewer.scene.globe.ellipsoid;
                     position = this.viewer.scene.camera.pickEllipsoid(e.position, ellipsoid);
                 }
-                //TODO: 海拔高度转Cartesain3 Z 值
                 if (position){
                     this.positions.push(position);
                 }
diff --git a/src/components/SceneViewer.vue b/src/components/SceneViewer.vue
index 0b2f3fa..559e7be 100644
--- a/src/components/SceneViewer.vue
+++ b/src/components/SceneViewer.vue
@@ -41,6 +41,10 @@ onMounted(() => {
   // 显示罗盘和比例尺
   showNavigator(viewer)
 
+	// 挂载在window，供全局组件共享
+	window.viewer = viewer
+	window.measureViewer = new MeasureViewer(viewer);
+
   //添加天地图影像
   viewer.imageryLayers.addImageryProvider(
     getTDTProvider(TDTLayerType.Img, TDTProjectionType.WebMercator),
@@ -49,16 +53,17 @@ onMounted(() => {
   viewer.imageryLayers.addImageryProvider(
     getTDTProvider(TDTLayerType.Cia, TDTProjectionType.WebMercator),
   )
-  // 添加三维地形服务
-  viewer.terrainProvider = getTDTTerrainProvider()
+
+	// 检查设备联网状态，添加三维地形服务
+	if(window.navigator.onLine){
+		// 如果断网环境执行该语句，航线绘制、三维伴飞等功能出现异常
+		viewer.terrainProvider = getTDTTerrainProvider()
+	}
+
   // 标记点图层，存储所有地标点
   const markerLayer = new CustomDataSource('Marker')
   viewer.dataSources.add(markerLayer)
 
-  // 挂载在window，供全局组件共享
-  window.viewer = viewer
-  window.measureViewer = new MeasureViewer(viewer);
-
 })
 
 
diff --git a/src/components/page/RouteManagePage.vue b/src/components/page/RouteManagePage.vue
index 9cf7e69..7d530dd 100644
--- a/src/components/page/RouteManagePage.vue
+++ b/src/components/page/RouteManagePage.vue
@@ -275,6 +275,7 @@ function sendRouteToQT(routeUnicode: string|number){
 	let selectedRoute = routeStore.flyRoute.filter(element => element.unicode === String(routeUnicode))[0]
 	if(selectedRoute){
 		if(sStore.webskt.ws?.readyState == WebSocket.OPEN){
+			console.log(selectedRoute)
 			sStore.webskt.ws.send(JSON.stringify(selectedRoute))
 		}else {
 			uiMsg.info('请先开启WebSocket')
diff --git a/src/components/toolbar.vue b/src/components/toolbar.vue
index 3013495..ff0bbc6 100644
--- a/src/components/toolbar.vue
+++ b/src/components/toolbar.vue
@@ -200,8 +200,8 @@ async function connectWebSocket() {
           SceneValue.value = 'fallow'
           hasPlane.value = true;
         }
-        // 加载和更新碰撞检测图(50帧更新一次)
-        if(frameCount>50 && lStore.openDetect){
+        // 加载和更新碰撞检测图(50帧更新一次) (只在联网模式下启用)
+        if(frameCount>50 && lStore.openDetect && window.navigator.onLine){
           emit('resizeMap', detectDivHeight.value)
           showDetection.value = true
           frameCount = 0
@@ -285,7 +285,7 @@ function startDrawRoute(routeParams) {
     // result是经纬度坐标数组，需转换为 AirlinePoint数组
     let AirlinePoints = []
 		result.forEach((pt,index) => {
-			let AirlinePoint = {lon:pt.lon, lat:pt.lat, alt:pt.alt, ch1:routeParams.isClose? 2:0, ch2:0x03, speed:0, nPt:index+1}
+			let AirlinePoint = {lon:pt.lon, lat:pt.lat, alt:pt.alt, ch1:routeParams.isClose? 0:2, ch2:0x03, speed:0, nPt:index+1}
 			AirlinePoints.push(AirlinePoint)
 		})
 		AirlinePoints.at(-1).ch2 = 0x01;
diff --git a/src/utils/map/TDTProvider.ts b/src/utils/map/TDTProvider.ts
index b0514df..09e2373 100644
--- a/src/utils/map/TDTProvider.ts
+++ b/src/utils/map/TDTProvider.ts
@@ -10,6 +10,7 @@ import {
   WebMapTileServiceImageryProvider,
   GeographicTilingScheme,
   WebMercatorTilingScheme,
+  CesiumTerrainProvider
 } from 'cesium'
 import axios from 'axios'