diff --git a/business/src/main/java/com/fizz/business/domain/DeviceSnapshot.java b/business/src/main/java/com/fizz/business/domain/DeviceSnapshot.java
index 786f14d..9f7ffc9 100644
--- a/business/src/main/java/com/fizz/business/domain/DeviceSnapshot.java
+++ b/business/src/main/java/com/fizz/business/domain/DeviceSnapshot.java
@@ -39,8 +39,6 @@ public class DeviceSnapshot {
     @Schema(description = "来源类型 ENTRY/FURNACE/COAT/EXIT")
     private String sourceType;
 
-    @Schema(description = "基准位置(m)")
-    private Double basePosition;
 
     @Schema(description = "快照数据JSON")
     private String snapshotData;