update 采集是判断设备重连以及监听设备断开链接的时间

app/api/controller/DataCollectController.php

@@ -176,7 +176,7 @@ class DataCollectController extends BaseApiController
                         'land_id' => $land[3],
                         'device_id' => $item['device_id'],
                         'last_online_time' => $parmas['disconnected_at'],
-                        'disconnected_time' => $parmas['disconnected_time'],
+                        'disconnected_time' => $parmas['disconnected_at'],
                         'create_time' => time(),
                         'update_time' => time()
                     ];