diff --git a/app/build.gradle b/app/build.gradle
index 14c4e0f..43ec2b8 100644
--- a/app/build.gradle
+++ b/app/build.gradle
@@ -57,7 +57,7 @@
 
     applicationVariants.configureEach {
         outputs.configureEach {
-            outputFileName = 'COM_TCY_' + getBuildDate() + '_' + defaultConfig.versionName + '.apk'
+            outputFileName = 'BLTD_TCY_' + getBuildDate() + '_' + defaultConfig.versionName + '.apk'
         }
     }
 }

diff --git a/app/build.gradle b/app/build.gradle
index 14c4e0f..43ec2b8 100644
--- a/app/build.gradle
+++ b/app/build.gradle
@@ -57,7 +57,7 @@
 
     applicationVariants.configureEach {
         outputs.configureEach {
-            outputFileName = 'COM_TCY_' + getBuildDate() + '_' + defaultConfig.versionName + '.apk'
+            outputFileName = 'BLTD_TCY_' + getBuildDate() + '_' + defaultConfig.versionName + '.apk'
         }
     }
 }
diff --git a/app/src/main/res/layout/activity_login.xml b/app/src/main/res/layout/activity_login.xml
index d0838ed..80a90dc 100644
--- a/app/src/main/res/layout/activity_login.xml
+++ b/app/src/main/res/layout/activity_login.xml
@@ -16,7 +16,7 @@
         <ImageView
             android:layout_width="wrap_content"
             android:layout_height="96dp"
-            android:src="@mipmap/splash_casic" />
+            android:src="@mipmap/bltd" />
 
         <TextView
             android:layout_width="match_parent"

diff --git a/app/build.gradle b/app/build.gradle
index 14c4e0f..43ec2b8 100644
--- a/app/build.gradle
+++ b/app/build.gradle
@@ -57,7 +57,7 @@
 
     applicationVariants.configureEach {
         outputs.configureEach {
-            outputFileName = 'COM_TCY_' + getBuildDate() + '_' + defaultConfig.versionName + '.apk'
+            outputFileName = 'BLTD_TCY_' + getBuildDate() + '_' + defaultConfig.versionName + '.apk'
         }
     }
 }
diff --git a/app/src/main/res/layout/activity_login.xml b/app/src/main/res/layout/activity_login.xml
index d0838ed..80a90dc 100644
--- a/app/src/main/res/layout/activity_login.xml
+++ b/app/src/main/res/layout/activity_login.xml
@@ -16,7 +16,7 @@
         <ImageView
             android:layout_width="wrap_content"
             android:layout_height="96dp"
-            android:src="@mipmap/splash_casic" />
+            android:src="@mipmap/bltd" />
 
         <TextView
             android:layout_width="match_parent"
diff --git a/app/src/main/res/layout/activity_main.xml b/app/src/main/res/layout/activity_main.xml
index d5e9de6..3632130 100644
--- a/app/src/main/res/layout/activity_main.xml
+++ b/app/src/main/res/layout/activity_main.xml
@@ -54,7 +54,7 @@
                 android:layout_width="@dimen/dp_60"
                 android:layout_height="match_parent"
                 android:scaleType="fitXY"
-                android:src="@mipmap/casic_203" />
+                android:src="@mipmap/bltd" />
 
             <TextView
                 android:id="@+id/currentLocationView"

diff --git a/app/build.gradle b/app/build.gradle
index 14c4e0f..43ec2b8 100644
--- a/app/build.gradle
+++ b/app/build.gradle
@@ -57,7 +57,7 @@
 
     applicationVariants.configureEach {
         outputs.configureEach {
-            outputFileName = 'COM_TCY_' + getBuildDate() + '_' + defaultConfig.versionName + '.apk'
+            outputFileName = 'BLTD_TCY_' + getBuildDate() + '_' + defaultConfig.versionName + '.apk'
         }
     }
 }
diff --git a/app/src/main/res/layout/activity_login.xml b/app/src/main/res/layout/activity_login.xml
index d0838ed..80a90dc 100644
--- a/app/src/main/res/layout/activity_login.xml
+++ b/app/src/main/res/layout/activity_login.xml
@@ -16,7 +16,7 @@
         <ImageView
             android:layout_width="wrap_content"
             android:layout_height="96dp"
-            android:src="@mipmap/splash_casic" />
+            android:src="@mipmap/bltd" />
 
         <TextView
             android:layout_width="match_parent"
diff --git a/app/src/main/res/layout/activity_main.xml b/app/src/main/res/layout/activity_main.xml
index d5e9de6..3632130 100644
--- a/app/src/main/res/layout/activity_main.xml
+++ b/app/src/main/res/layout/activity_main.xml
@@ -54,7 +54,7 @@
                 android:layout_width="@dimen/dp_60"
                 android:layout_height="match_parent"
                 android:scaleType="fitXY"
-                android:src="@mipmap/casic_203" />
+                android:src="@mipmap/bltd" />
 
             <TextView
                 android:id="@+id/currentLocationView"
diff --git a/app/src/main/res/values/strings.xml b/app/src/main/res/values/strings.xml
index c4545c4..0b9e649 100644
--- a/app/src/main/res/values/strings.xml
+++ b/app/src/main/res/values/strings.xml
@@ -1,9 +1,9 @@
 <resources>
     <string name="app_name">探测仪(GD)</string>
-    <string name="group_name">中国航天科工集团二院二〇三所</string>
-<!--    <string name="group_name">北京保利泰达仪器设备有限公司</string>-->
+<!--    <string name="group_name">中国航天科工集团二院二〇三所</string>-->
+    <string name="group_name">北京保利泰达仪器设备有限公司</string>
     <string name="loading_value">数据加载中…</string>
-    <string name="chinese_copyright">中国航天科工集团二院二〇三所 版权所有</string>
-<!--    <string name="chinese_copyright">北京保利泰达仪器设备有限公司 版权所有</string>-->
+<!--    <string name="chinese_copyright">中国航天科工集团二院二〇三所 版权所有</string>-->
+    <string name="chinese_copyright">北京保利泰达仪器设备有限公司 版权所有</string>
     <string name="copyright">Copyright © 2015 – 2025 Casic. All rights reserved.</string>
 </resources>
\ No newline at end of file