完善

platform-service/src/main/java/com/platform/service/sb/impl/SbInfoServiceImpl.java

@@ -797,7 +797,7 @@ public class SbInfoServiceImpl extends BaseServiceImpl<SbInfoMapper, SbInfo, SbI
         if(list != null && list.size() > 0){
             list.forEach(item -> {
                 // 子设备且父设备在maps中不添加
-                if(item.getIsChild() == 1){
+                if(item.getIsChild() != null && item.getIsChild() == 1){
                     if(StringUtils.isBlank(maps.get(item.getParentId()))){
                         resultList.add(item);
                     }