diff --git a/docs/zhongdian_mqtt.md b/docs/zhongdian_mqtt.md
index 010aa02..c39c3f1 100644
--- a/docs/zhongdian_mqtt.md
+++ b/docs/zhongdian_mqtt.md
@@ -22,7 +22,7 @@
   "version": "1.0",
   "location_code": "string",
   // 日期: 2024-06-20, <<新增字段>>
-  "real_location_code": "string",
+  "dynamic_location_code": "string",
   "ts ": 1688606685,
   "properties": [
     {