@@ -88,7 +88,8 @@ class OpcDataController extends BaseController
$groupId = $this->localConf[$getMineCode][$getDataType];
$sqlStr = "
- select t1.dev_type_id,
+ select distinct
+ t1.dev_type_id,
t1.dev_type_name,
t1.device_num,
t1.device_name,