diff --git a/src/main/java/com/xydl/cac/model/StaticVariable.java b/src/main/java/com/xydl/cac/model/StaticVariable.java
index f54fcbb..708cd51 100644
--- a/src/main/java/com/xydl/cac/model/StaticVariable.java
+++ b/src/main/java/com/xydl/cac/model/StaticVariable.java
@@ -10,10 +10,7 @@ import com.xydl.cac.iec.IecClient;
 import com.xydl.cac.iec.IecServer;
 import com.xydl.cac.util.DateUtil;
 
-import java.util.ArrayList;
-import java.util.HashMap;
-import java.util.Iterator;
-import java.util.List;
+import java.util.*;
 import java.util.concurrent.ConcurrentHashMap;
 
 public class StaticVariable {
@@ -34,6 +31,7 @@ public class StaticVariable {
     public static ConcurrentHashMap<Integer, WarnRule> rule_Cache = new ConcurrentHashMap<>();
 
     public static SerialPort currentPort;
+    public static Date LastWarningTime;//最后一次硬接点告警时间
 
     public static void wait(int seconds) throws InterruptedException {
         for (int i = 0; i < seconds; i++) {
diff --git a/src/main/java/com/xydl/cac/service/impl/SerialPortServiceImpl.java b/src/main/java/com/xydl/cac/service/impl/SerialPortServiceImpl.java
index 74aee93..efd069e 100644
--- a/src/main/java/com/xydl/cac/service/impl/SerialPortServiceImpl.java
+++ b/src/main/java/com/xydl/cac/service/impl/SerialPortServiceImpl.java
@@ -3,6 +3,7 @@ package com.xydl.cac.service.impl;
 import com.fazecast.jSerialComm.SerialPort;
 import com.xydl.cac.model.StaticVariable;
 import com.xydl.cac.service.SerialPortService;
+import com.xydl.cac.util.DateUtil;
 import lombok.extern.slf4j.Slf4j;
 import org.springframework.beans.factory.annotation.Value;
 import org.springframework.scheduling.annotation.Async;
@@ -10,6 +11,7 @@ import org.springframework.stereotype.Service;
 
 import java.util.ArrayList;
 import java.util.Arrays;
+import java.util.Date;
 import java.util.List;
 
 @Service
@@ -18,6 +20,10 @@ public class SerialPortServiceImpl implements SerialPortService {
 
     @Value("${cac.warnport.name}")
     public String warnportname;
+    @Value("${cac.warnport.intervaltime:60000}")
+    public Integer intervaltime;
+    @Value("${cac.warnport.warntime:5000}")
+    public Integer warntime;
 
     @Override
     public Boolean discoverSerialPort() {
@@ -56,20 +62,28 @@ public class SerialPortServiceImpl implements SerialPortService {
     @Async
     public void sendData(boolean data) {
         if (openSerialPort()) {
-            byte[] openbuffer = new byte[]{00, (byte) 0xf1, (byte) 0xff};
-            byte[] stopbuffer = new byte[]{00, (byte) 0x01, (byte) 0xff};
+            byte[] openbuffer = new byte[]{00, (byte) 0xf1, (byte) 0xff};//发送串口告警
+            byte[] stopbuffer = new byte[]{00, (byte) 0x01, (byte) 0xff};//关闭串口告警
             SerialPort port = StaticVariable.currentPort;
             if (port != null) {
-                if (data) {
-                    port.writeBytes(openbuffer, openbuffer.length);
+                Date date = new Date();
+                if (StaticVariable.LastWarningTime == null) {
+                    StaticVariable.LastWarningTime = new Date();
                 } else {
-                    port.writeBytes(stopbuffer, stopbuffer.length);
+                    long lastWarningTimeTime = StaticVariable.LastWarningTime.getTime();
+                    long time = date.getTime();
+                    if (time - lastWarningTimeTime <= intervaltime) {
+                        return;
+                    }
                 }
+                StaticVariable.LastWarningTime = date;
+                port.writeBytes(openbuffer, openbuffer.length);
                 try {
-                    Thread.sleep(5000);
-                    port.writeBytes(stopbuffer, stopbuffer.length);
+                    Thread.sleep(warntime);
                 } catch (InterruptedException e) {
                     e.printStackTrace();
+                } finally {
+                    port.writeBytes(stopbuffer, stopbuffer.length);
                 }
             }
         }
diff --git a/src/main/resources/application-dev.yml b/src/main/resources/application-dev.yml
index becb583..d6cface 100644
--- a/src/main/resources/application-dev.yml
+++ b/src/main/resources/application-dev.yml
@@ -51,3 +51,5 @@ cac:
   rsakey: MIIBVAIBADANBgkqhkiG9w0BAQEFAASCAT4wggE6AgEAAkEAqhHyZfSsYourNxaY7Nt+PrgrxkiA50efORdI5U5lsW79MmFnusUA355oaSXcLhu5xxB38SMSyP2KvuKNPuH3owIDAQABAkAfoiLyL+Z4lf4Myxk6xUDgLaWGximj20CUf+5BKKnlrK+Ed8gAkM0HqoTt2UZwA5E2MzS4EI2gjfQhz5X28uqxAiEA3wNFxfrCZlSZHb0gn2zDpWowcSxQAgiCstxGUoOqlW8CIQDDOerGKH5OmCJ4Z21v+F25WaHYPxCFMvwxpcw99EcvDQIgIdhDTIqD2jfYjPTY8Jj3EDGPbH2HHuffvflECt3Ek60CIQCFRlCkHpi7hthhYhovyloRYsM+IS9h/0BzlEAuO0ktMQIgSPT3aFAgJYwKpqRYKlLDVcflZFCKY7u3UP8iWi1Qw0Y=
   warnport:
     name: ttyCH341USB0
+    intervaltime: 60000
+    warntime: 5000