diff --git a/db/upgrade20250501.sql b/db/upgrade20250501.sql
index 0f8ffb0..5eb6c69 100644
--- a/db/upgrade20250501.sql
+++ b/db/upgrade20250501.sql
@@ -3,3 +3,6 @@ ADD COLUMN `upload` INT NULL COMMENT '0:不传; 1:要传;' AFTER `active`;
 
 ALTER TABLE `ied_dl_record`
 ADD COLUMN `upload` INT(11) NULL DEFAULT NULL COMMENT '0:未传; 1:已传;' AFTER `data`;
+
+ALTER TABLE `i2sync_field`
+ADD COLUMN `conversion` VARCHAR(45) NULL COMMENT '单位换算' AFTER `attach`;
diff --git a/src/main/java/com/xydl/cac/entity/I2syncField.java b/src/main/java/com/xydl/cac/entity/I2syncField.java
index 98d1a05..d770945 100644
--- a/src/main/java/com/xydl/cac/entity/I2syncField.java
+++ b/src/main/java/com/xydl/cac/entity/I2syncField.java
@@ -36,4 +36,7 @@ public class I2syncField {
     @Column(name = "attach")
     private String attach;
 
+    @Column(name = "conversion")
+    private String conversion;
+
 }
\ No newline at end of file
diff --git a/src/main/java/com/xydl/cac/transform/I2DataTransformer.java b/src/main/java/com/xydl/cac/transform/I2DataTransformer.java
index 3dab3fe..dc85d65 100644
--- a/src/main/java/com/xydl/cac/transform/I2DataTransformer.java
+++ b/src/main/java/com/xydl/cac/transform/I2DataTransformer.java
@@ -6,6 +6,7 @@ import com.xydl.cac.model.i2sync.Attr;
 import com.xydl.cac.model.i2sync.Datanode;
 import com.xydl.cac.model.i2sync.Monitordata;
 import com.xydl.cac.model.i2sync.Request;
+import com.xydl.cac.util.DataUtil;
 import com.xydl.cac.util.DateUtil;
 import lombok.extern.slf4j.Slf4j;
 import org.apache.commons.lang3.StringUtils;
@@ -65,6 +66,9 @@ public class I2DataTransformer {
         List<Attr> attrs = new ArrayList<>();
         for (I2syncField field : fieldList) {
             Object value = dataMap.get(field.getFieldName());
+            if (StringUtils.isNotBlank(field.getConversion())) {
+                value = DataUtil.convert(value, field.getConversion());
+            }
             if (value != null) {
                 Attr attr = new Attr();
                 attr.setName(field.getDestFieldName());
diff --git a/src/main/java/com/xydl/cac/util/DataUtil.java b/src/main/java/com/xydl/cac/util/DataUtil.java
index a22ca43..87c68a5 100644
--- a/src/main/java/com/xydl/cac/util/DataUtil.java
+++ b/src/main/java/com/xydl/cac/util/DataUtil.java
@@ -66,4 +66,28 @@ public class DataUtil {
             list.addAll(newlist);
         }
     }
+
+    public static Object convert(Object obj, String conversion) {
+        if (obj instanceof Number) {
+            float f = (float) obj;
+            if (conversion.startsWith("*")) {
+                float c = Float.parseFloat(conversion.replaceAll("\\*", "").
+                        replaceAll(" ", ""));
+                return f * c;
+            } else if (conversion.startsWith("/")) {
+                float c = Float.parseFloat(conversion.replaceAll("\\/", "").
+                        replaceAll(" ", ""));
+                return f / c;
+            } else if (conversion.startsWith("+")) {
+                float c = Float.parseFloat(conversion.replaceAll("\\+", "").
+                        replaceAll(" ", ""));
+                return f + c;
+            } else if (conversion.startsWith("-")) {
+                float c = Float.parseFloat(conversion.replaceAll("\\-", "").
+                        replaceAll(" ", ""));
+                return f - c;
+            }
+        }
+        return obj;
+    }
 }