在消息数据上发送PERIMETER信息时，Thingsboard警报未出现

Question

1. 您好，

   I successfully created alarms using circle and polygon when check box is Checked in things board.
   
   Fetch perimeter information from message metadata(without this checkbox is checked)
       "ts": 1579678762939,  
       "values": {
       "latitude": 17.445383,                   
       "longitude": 78.349072
          }
   
   
   I used following structure to send latitude,longitude,perimeter,perimeter Type to things board .
   
   Fetch perimeter information from message metadata(when checkbox is checked)
   
   'ts': 1579587810225,
   'values': {
         'perimeter': '[[17.44855635802401,78.38269274528545],[17.44815078914439,78.38316615517658], [17.44830943449181,78.38253047164005],[17.448592181099333,78.38260959680599]]',
     'latitude': 17.448249,                  
     'longitude': 78.383002,
     'perimeterType':'Polygon'
    }
   

   在这里，我无法生成警报。我可以知道我在哪里做错。在设备中，我可以看到最新的遥测数据，但是没有产生警报吗？