diff --git a/.gitignore b/.gitignore
index 5cbdb97..c6fc4e2 100644
--- a/.gitignore
+++ b/.gitignore
@@ -4,3 +4,6 @@ backend/dist/
 venv/
 frontend/build/
 frontend/dist/
+backend/wrench.db-shm
+backend/wrench.db-wal
+backend/wrench.db
diff --git a/backend/wrench.db b/backend/wrench.db
deleted file mode 100644
index e0998d7..0000000
Binary files a/backend/wrench.db and /dev/null differ
diff --git a/frontend/wrench_gui.py b/frontend/wrench_gui.py
index c407ec9..2d1a47c 100644
--- a/frontend/wrench_gui.py
+++ b/frontend/wrench_gui.py
@@ -636,14 +636,6 @@ class WrenchGUI:
                         orders = data.get("data", [])
                         self.root.after(0, lambda o=orders: self.update_order_list(o))
                         
-                        # 检查当前认领的工单是否被退领
-                        if self.work_order:
-                            trace_id = self.work_order.get('trace_id')
-                            process_id = self.work_order.get('process_id')
-                            # 如果当前工单出现在可用列表中，说明被退领了
-                            if any(o.get('trace_id') == trace_id and o.get('process_id') == process_id for o in orders):
-                                self.root.after(0, self.clear_claimed_order)
-                        
                         if len(orders) > 0:
                             self.root.after(0, lambda: self.poll_status_label.config(
                                 text=f"🔄 已找到 {len(orders)} 个可用工单", fg="#27ae60"
@@ -937,7 +929,7 @@ class WrenchGUI:
             self.log("✅ 已启用远程控制", "SUCCESS")
             
             # 等待扳手初始化完成
-            time.sleep(0.5)
+            time.sleep(2)
             self.log("扳手初始化完成，准备开始拧紧")
             
             # 遍历所有螺栓
diff --git a/wrench_controller.py b/wrench_controller.py
index 7c84b7e..6cd952b 100644
--- a/wrench_controller.py
+++ b/wrench_controller.py
@@ -363,9 +363,9 @@ class WrenchController:
             torque_max_nm = target_torque * 1.2  # 默认上限
 
         # 协议中扭矩以 0.1Nm 精度编码：协议值 = Nm × 10
-        target_torque_val = int(round(target_torque * 10))
-        torque_min_val = int(round(torque_min_nm * 10))
-        torque_max_val = int(round(torque_max_nm * 10))
+        target_torque_val = round(target_torque * 10)
+        torque_min_val = round(torque_min_nm * 10)
+        torque_max_val = round(torque_max_nm * 10)
         
         # 角度需要乘10
         angle_value = target_angle * 10
@@ -408,22 +408,22 @@ class WrenchController:
         data.append(mode)
         
         # 目标扭矩 (2字节，Nm×10)
-        data.extend(struct.pack('>H', target_torque_val))
+        data.extend(struct.pack('>H', int(target_torque_val)))
         
         # 扭矩下限 (2字节，Nm×10)
-        data.extend(struct.pack('>H', torque_min_val))
+        data.extend(struct.pack('>H', int(torque_min_val)))
         
         # 扭矩上限 (2字节，Nm×10)
-        data.extend(struct.pack('>H', torque_max_val))
+        data.extend(struct.pack('>H', int(torque_max_val)))
         
         # 目标角度 (2字节)
-        data.extend(struct.pack('>H', angle_value))
+        data.extend(struct.pack('>H', int(angle_value)))
         
         # 角度上限 (2字节)
-        data.extend(struct.pack('>H', angle_max_value))
+        data.extend(struct.pack('>H', int(angle_max_value)))
         
         # 角度下限 (2字节)
-        data.extend(struct.pack('>H', angle_min_value))
+        data.extend(struct.pack('>H', int(angle_min_value)))
         
         # 计算并添加校验码
         checksum = self._calculate_checksum(data)