diff --git a/aucma-dms/src/main/java/com/aucma/dms/domain/vo/DmsPdaDeviceParamUpdateVo.java b/aucma-dms/src/main/java/com/aucma/dms/domain/vo/DmsPdaDeviceParamUpdateVo.java
new file mode 100644
index 0000000..a83fb2e
--- /dev/null
+++ b/aucma-dms/src/main/java/com/aucma/dms/domain/vo/DmsPdaDeviceParamUpdateVo.java
@@ -0,0 +1,22 @@
+package com.aucma.dms.domain.vo;
+
+import lombok.Data;
+
+import java.math.BigDecimal;
+
+/**
+ * PDA设备参数手工更新请求对象。
+ * 仅暴露设备标识与参数值，避免前端直接透传完整实体字段。
+ */
+@Data
+public class DmsPdaDeviceParamUpdateVo {
+
+    /** 设备编码（可选，与deviceId至少传一个） */
+    private String deviceCode;
+
+    /** 设备主键（可选，与deviceCode至少传一个） */
+    private Long deviceId;
+
+    /** 参数值（运行时间/当日产量），按数字接收，最多2位小数 */
+    private BigDecimal paramValue;
+}
diff --git a/aucma-dms/src/main/java/com/aucma/dms/service/impl/DmsPlanInspectTxService.java b/aucma-dms/src/main/java/com/aucma/dms/service/impl/DmsPlanInspectTxService.java
new file mode 100644
index 0000000..91a8529
--- /dev/null
+++ b/aucma-dms/src/main/java/com/aucma/dms/service/impl/DmsPlanInspectTxService.java
@@ -0,0 +1,27 @@
+package com.aucma.dms.service.impl;
+
+import com.aucma.dms.mapper.DmsPlanInspectMapper;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.stereotype.Service;
+import org.springframework.transaction.annotation.Propagation;
+import org.springframework.transaction.annotation.Transactional;
+
+import java.util.Date;
+
+/**
+ * 巡检计划事务隔离服务。
+ * 单独使用 REQUIRES_NEW 推进计划时间，避免影响已提交的工单生成事务。
+ */
+@Service
+public class DmsPlanInspectTxService {
+
+    @Autowired
+    private DmsPlanInspectMapper dmsPlanInspectMapper;
+
+    @Transactional(propagation = Propagation.REQUIRES_NEW, rollbackFor = Exception.class)
+    public int updatePlanNextTimeInNewTx(Long planInspectId, Date nextTime) {
+        // 单独新事务提交计划推进：
+        // 该事务失败时，不影响已经成功提交的工单生成事务。
+        return dmsPlanInspectMapper.updatePlanNextTime(planInspectId, nextTime);
+    }
+}