diff --git a/securitycontrol-commons/securitycontrol-commons-entity/src/main/java/com/securitycontrol/entity/background/vo/DeviceBdChildVo.java b/securitycontrol-commons/securitycontrol-commons-entity/src/main/java/com/securitycontrol/entity/background/vo/DeviceBdChildVo.java
index e458426..af955c1 100644
--- a/securitycontrol-commons/securitycontrol-commons-entity/src/main/java/com/securitycontrol/entity/background/vo/DeviceBdChildVo.java
+++ b/securitycontrol-commons/securitycontrol-commons-entity/src/main/java/com/securitycontrol/entity/background/vo/DeviceBdChildVo.java
@@ -51,7 +51,6 @@ public class DeviceBdChildVo {
     private String updateTime;
 
     @ApiModelProperty(value = "设备信号")
-    @NotBlank(message = "设备信号不能为空", groups = {Query.class})
     @Length(max = 50, message = "设备信号字符长度不能超过50", groups = {Query.class})
     private String deviceModel;
 
diff --git a/securitycontrol-model/securitycontrol-background/src/main/resources/mapper/DeviceBdMapper.xml b/securitycontrol-model/securitycontrol-background/src/main/resources/mapper/DeviceBdMapper.xml
index c164107..a6c129b 100644
--- a/securitycontrol-model/securitycontrol-background/src/main/resources/mapper/DeviceBdMapper.xml
+++ b/securitycontrol-model/securitycontrol-background/src/main/resources/mapper/DeviceBdMapper.xml
@@ -53,7 +53,7 @@
                 <if test="createTime != null and createTime!=''">create_time,</if>
                 <if test="updateTime != null and updateTime!=''">update_time,</if>
                 del_flag,
-                <if test="updateTime != null and updateTime!=''">device_model,</if>
+                <if test="deviceModel != null and deviceModel!=''">device_model,</if>
                 <if test="bdId != null and bdId!=''">bd_id,</if>
                 <if test="areaId != null and areaId!=''">area_id,</if>
                 <if test="gtId != null and gtId!=''">gt_id,</if>