edit

service/device.py

@@ -61,7 +61,8 @@ class Device(object):
 	def switchCheck(self, device_id):
 		model = Demeter.model('device_info')
 		model.id = device_id
-		model.exp = '1'
+		#model.exp = '1'
+		model.exp.nq('-1')
 		info = model.select(type='fetchone')
 		if info:
 			return True