diff --git a/detection/src/main/java/com/njcn/gather/detection/handler/SocketDevResponseService.java b/detection/src/main/java/com/njcn/gather/detection/handler/SocketDevResponseService.java
index fbc22d18..79958a7e 100644
--- a/detection/src/main/java/com/njcn/gather/detection/handler/SocketDevResponseService.java
+++ b/detection/src/main/java/com/njcn/gather/detection/handler/SocketDevResponseService.java
@@ -459,7 +459,7 @@ public class SocketDevResponseService {
         double diff = Math.abs(num1 - num2);
         double larger = Math.max(num1, num2);
         if(DicDataEnum.V.getCode().equals(type)){
-            return BigDecimal.valueOf(diff / larger).setScale(4, RoundingMode.HALF_UP);
+            return BigDecimal.valueOf(num1 - num2).setScale(4, RoundingMode.HALF_UP);
         }else {
             return BigDecimal.valueOf(diff / larger).multiply(BigDecimal.valueOf(100)).setScale(4, RoundingMode.HALF_UP);
         }
diff --git a/detection/src/main/java/com/njcn/gather/detection/util/socket/web/WebSocketHandler.java b/detection/src/main/java/com/njcn/gather/detection/util/socket/web/WebSocketHandler.java
index 5d720081..31c0eabf 100644
--- a/detection/src/main/java/com/njcn/gather/detection/util/socket/web/WebSocketHandler.java
+++ b/detection/src/main/java/com/njcn/gather/detection/util/socket/web/WebSocketHandler.java
@@ -108,7 +108,7 @@ public class WebSocketHandler extends SimpleChannelInboundHandler<TextWebSocketF
     }
 
     @Override
-    public void handlerRemoved(ChannelHandlerContext ctx) throws Exception {
+    public void handlerRemoved(ChannelHandlerContext ctx){
         // 假设用户 ID 是从某个地方获取的，这里简单示例为 "userId"
         System.out.println("weoSocket客户端退出: " + ctx.channel().id());
         WebServiceManager.removeChannel(ctx.channel().id().toString());
@@ -116,7 +116,7 @@ public class WebSocketHandler extends SimpleChannelInboundHandler<TextWebSocketF
     }
 
     @Override
-    public void channelInactive(ChannelHandlerContext ctx) throws Exception {
+    public void channelInactive(ChannelHandlerContext ctx) {
         System.out.println("weoSocket断线" + ctx.channel().id());
         ctx.close();
 
diff --git a/detection/src/main/java/com/njcn/gather/detection/util/socket/web/WebSocketInitializer.java b/detection/src/main/java/com/njcn/gather/detection/util/socket/web/WebSocketInitializer.java
index 64e9c9b7..f40a86db 100644
--- a/detection/src/main/java/com/njcn/gather/detection/util/socket/web/WebSocketInitializer.java
+++ b/detection/src/main/java/com/njcn/gather/detection/util/socket/web/WebSocketInitializer.java
@@ -43,7 +43,7 @@ public class WebSocketInitializer extends ChannelInitializer<SocketChannel> {
          * 这个时候我们只需要访问 ws://127.0.0.1:7777/hello 就可以了
          * 这个handler是将http协议升级为websocket  并且使用 101 作为响应码
          * */
-        pipeline.addLast(new IdleStateHandler(10, -1, -1, TimeUnit.SECONDS));
+        pipeline.addLast(new IdleStateHandler(13, 0, 0, TimeUnit.SECONDS));
         pipeline.addLast(new WebSocketHandler());
         pipeline.addLast(new WebSocketServerProtocolHandler("/hello"));