diff --git a/service/drafting.go b/service/drafting.go
index f811272..ab1b933 100644
--- a/service/drafting.go
+++ b/service/drafting.go
@@ -16,7 +16,7 @@ func PageDraftingQuery(query *dto.PageDraftingReqDto) *dto.PageDto {
 	if query.Name != "" {
 		dq = dq.Where(d.Name.Like(fmt.Sprintf("%%%s%%", query.Name)))
 	}
-	records, total, err := dq.Debug().Omit(d.Proto).FindByPage(query.Offset(), query.Size)
+	records, total, err := dq.Debug().Omit(d.Proto).Order(d.UpdateAt.Desc()).FindByPage(query.Offset(), query.Size)
 	if err != nil {
 		panic(dto.ErrorDto{Code: dto.QueryDBError, Message: err.Error()})
 	}
@@ -29,7 +29,7 @@ func ListDraftingQuery(query *dto.ListDraftingReqDto) []*model.Drafting {
 	if query.Type != 0 {
 		dq = dq.Where(d.Type.Eq(query.Type))
 	}
-	records, err := dq.Debug().Omit(d.Proto).Find()
+	records, err := dq.Debug().Omit(d.Proto).Order(d.UpdateAt.Desc()).Find()
 	if err != nil {
 		panic(dto.ErrorDto{Code: dto.QueryDBError, Message: err.Error()})
 	}
diff --git a/third_party/electrical_machinery/electrical_machinery.go b/third_party/electrical_machinery/electrical_machinery.go
index e72684f..e43eb3b 100644
--- a/third_party/electrical_machinery/electrical_machinery.go
+++ b/third_party/electrical_machinery/electrical_machinery.go
@@ -54,6 +54,9 @@ func (s *electricalMachineryImpl) Stop() {
 }
 
 func (s *electricalMachineryImpl) SendElectricMachineryMessage(info *message.ElectricMachinery) {
+	if s.electricalMachineryUdpClient == nil {
+		return
+	}
 	s.electricalMachineryUdpClient.Send(info.Encode())
 }