机台查询优化

application/api/controller/WorkOrder.php

@@ -2306,7 +2306,7 @@ class WorkOrder extends Api
                 ->where('生产工序','like','%'.$value['gy0_gxmc'].'%')
                 ->where('使用部门','<>','研发中心')
                 ->where('设备编组','<>','')
-                ->where('sys_sbID','<>',null)
+                ->where('sys_sbID','<>','')
                 ->order('设备编号')
                 ->value('设备编号');
             $ProcessList[$key]['Gy0_sbbh'] = '';