登机桥显示字段修改及基础数据航空公司修改

src/app/pages/main/main.component.ts

@@ -137,6 +137,10 @@ export class MainComponent implements OnInit {
         //订阅航班更新
         this.websocketService.dynamicsMessage().subscribe(
             event => {
+                setInterval(() => {
+                    let msg = { "topic": "heart-beat", "message": "" };
+                    this.websocketService.websocket.send(JSON.stringify(msg));
+                }, 30000);
                 let data = JSON.parse(event as string);
                 if (data.topic === 'schd') {
                     let message = JSON.parse(data.message);