diff --git a/zh-cn/hardware_vision_scheduling.md b/zh-cn/hardware_vision_scheduling.md
index 1b444f3..7977400 100644
--- a/zh-cn/hardware_vision_scheduling.md
+++ b/zh-cn/hardware_vision_scheduling.md
@@ -190,6 +190,7 @@ sequenceDiagram
             "y": 200.3,
             "z": 300.7
         },
+        "wood_diameter": 34.5,
         "error_id": "err001",
         "wood id": "WooD _20251103 162602 004 2ace914e",
         "reg_timestamp": 1762158362326,
@@ -211,6 +212,7 @@ sequenceDiagram
 | right | object | 是 | 右侧坐标 |
 | x | number | 是 | X坐标 |
 | y | number | 是 | Y坐标 |
+| wood_diameter | number | 否 | 原木直径 |
 | z | number | 是 | Z坐标 |
 | error_id | string | 否 | 错误标识 |
 | wood_id | string | 否 | 原木标识 |