BugFixs， TODO 设备离线状态需要精确获知

GB28181Server.js

             }
             else {
                 //新的设备加入
+                Logger.log(`[${userId}] new sip session start.`);
                 let session = new NodeSipSession(this.config, userId, { request: request, info: remote }, this.uas);
                 session.expires = expires || this.expires;
                 session.run(this.authModule,auto_play);
         }
         else {
             //注销
-            if (context.sessions.has(userId))
+            if (context.sessions.has(userId)){
+                Logger.log(`[${userId}] lotout.`);
                 context.nodeEvent.emit('logout', context.sessions.get(userId));
+            }
+                
         }
 
         //通过验证 ,增加 Date 字段 （上下级和设备之间校时功能） 

GB28181Session.js

         //ntv 提交状态，自动开启视频... 
         this.authModule = authModule;
         this.auto_play  = auto_play;
-        authModule.status(this.id,1,(data)=>{
+        this.authModule.status(this.id,1,(data)=>{
             if(data.code==0){
                 Logger.log("设备在线状态已上报！");
             }else{
 
                                     //ntv
                                     that.playmode='realplay';
-                                    this.authModule.play_status(this.id,1,(data)=>{
+                                    that.authModule.play_status(that.id,1,(data)=>{
                                         if(data.code==0){
                                             Logger.log("视频开启状态已上报！");
                                         }else{
 
     //停止实时预览
     async sendStopRealPlayMessage(channelId, rhost, rport) {
-
         return new Promise((resolve, reject) => {
-            let result = { result: false, message: 'not find dialog.' };
+            let result = { result: false, message: '没有找到视频通道！' };
 
             for (var key in this.dialogs) {
                 //搜索满足条件的会话
                 let session = this.dialogs[key];
-
-                if (session.bye && session.port === rport && session.host === rhost && session.channelId === channelId && session.play === 'realplay') {
-
+                //ntv  注释掉多余条件，因为数据类型不同导致找不到
+                if (session.bye /*&& session.port === rport && session.host === rhost */ && session.channelId === channelId && session.play === 'realplay') {
                     //ntv 挪到回调中，TODO 这个指令发不成功！
                     //context.nodeEvent.emit('stopPlayed', session.ssrc);
                     this.uas.send(session.bye, (response) => {