diff --git a/app/src/main/java/com/shuwei/dish/match/base/BaseApp.kt b/app/src/main/java/com/shuwei/dish/match/base/BaseApp.kt
index fc602e8..9325e75 100644
--- a/app/src/main/java/com/shuwei/dish/match/base/BaseApp.kt
+++ b/app/src/main/java/com/shuwei/dish/match/base/BaseApp.kt
@@ -13,6 +13,7 @@ import com.shuwei.dish.match.ui.InitActivity.Companion.TAG
 import com.shuwei.dish.match.utils.AppUtil
 import com.shuwei.dish.match.utils.BootReceiver
 import com.shuwei.dish.match.utils.CrashHandler
+import com.shuwei.dish.match.utils.Weigher2
 
 
 class BaseApp : Application() {
@@ -28,10 +29,13 @@ class BaseApp : Application() {
         GlobalData.deviceId = deviceId
 
         // 根据设备 ID 判断角色：指定 ID 为主设备，其余为子设备
-        GlobalData.deviceRole = if (deviceId == "8fc2ab34-2137-3112-acca-f884ea8736d4") {
-            DeviceRole.MASTER
+        // 主设备是/dev/ttyS7，子设备是/dev/ttyS4
+        if (deviceId == "8fc2ab34-2137-3112-acca-f884ea8736d4") {
+            GlobalData.deviceRole = DeviceRole.MASTER
+            Weigher2.setDevicePort("/dev/ttyS7")
         } else {
-            DeviceRole.SLAVE
+            GlobalData.deviceRole = DeviceRole.SLAVE
+            Weigher2.setDevicePort("/dev/ttyS4")
         }
         Log.d(TAG, "设备角色: ${GlobalData.deviceRole}")
 
diff --git a/app/src/main/java/com/shuwei/dish/match/ui/InitActivity.kt b/app/src/main/java/com/shuwei/dish/match/ui/InitActivity.kt
index 6c6b888..7c063a7 100644
--- a/app/src/main/java/com/shuwei/dish/match/ui/InitActivity.kt
+++ b/app/src/main/java/com/shuwei/dish/match/ui/InitActivity.kt
@@ -58,14 +58,6 @@ class InitActivity : BaseActivity() {
 
         initViewModel()
 
-        // 主设备上/dev/ttyS7，子设备是/dev/ttyS4
-        Weigher2.setDevicePort(
-            if (GlobalData.deviceId == "8fc2ab34-2137-3112-acca-f884ea8736d4") {
-                "/dev/ttyS7"
-            } else {
-                "/dev/ttyS4"
-            }
-        )
         WeightUtil.init()
         WeightUtil.getWeight()
         WeightUtil.startContinuousRead()