diff --git a/common/common_func.cpp b/common/common_func.cpp
index e9aa881..c2e1091 100644
--- a/common/common_func.cpp
+++ b/common/common_func.cpp
@@ -230,8 +230,8 @@ int config_uart(const char *port, int speed) {
     opt.c_oflag &= ~(OPOST);
     opt.c_cflag &= ~(CSIZE | PARENB | CBAUD);
     opt.c_cflag |= (CS8 | speed);
-    opt.c_cc[VMIN] = 255;
-    opt.c_cc[VTIME] = 5;
+    opt.c_cc[VMIN] = 1;
+    opt.c_cc[VTIME] = 1;
     if (tcsetattr(iFd, TCSANOW, &opt) < 0) {
         zlog_error(zbt, "tcsetattr failed");
         return -2;
diff --git a/uart/uart.cpp b/uart/uart.cpp
index 63abdae..f11c9f5 100644
--- a/uart/uart.cpp
+++ b/uart/uart.cpp
@@ -80,7 +80,7 @@ int Uart::UartRecv(int fd, char srcshow, char *buffer) {
 
         } else {
             memset(buff, 0, sizeof(buff));
-            ret = read_data(fd, buff, BUF_LENGTH, 50);
+            ret = read_data(fd, buff, BUF_LENGTH, 10);
             if (ret <= 0) {
                 continue;
             }
@@ -120,6 +120,8 @@ Uart::Uart() : mUart(mIoSev), mStrand(mIoSev) {
     VecWaveDataY.reserve(1000);
     VecWaveDataZ.reserve(1500);
     memset(send_data, 0, sizeof(send_data));
+    last_short_addr = 0;
+    last_time = 0;
 }
 
 Uart::~Uart() {
@@ -552,6 +554,30 @@ int Uart::DealUpgrade(uint16_t ushortAdd,int status){
     
     return 0;
 }
+int Uart::DealFeatureValue(const char *pData,uint16_t ushortAdd){
+    zlog_info(zct, "DealFeatureValue ");
+    char localtimestamp[32] = {0};
+    GetTimeNet(localtimestamp, 1);
+    std::string nowTimetamp = std::string(localtimestamp);
+    long now_time = atol(nowTimetamp.c_str());
+    if(ushortAdd == last_short_addr && (now_time  - last_time) < 5){
+        zlog_info(zct, "DealFeatureValue short_addr_last = %02x%02x,timestamp_last = %ld,nowTime = %ld",UINT16_HIGH(ushortAdd), UINT16_LOW(ushortAdd),last_time,now_time);
+        int iRet = DealDataNodeFeature(pData, 0);
+        if (iRet != 0)
+        {
+            return -1;
+        }
+        DealAskTask(ushortAdd);
+    }else {
+        DealAskTask(ushortAdd);
+        DealDataNodeFeature(pData, 0);
+    }
+    last_short_addr = ushortAdd;
+    GetTimeNet(localtimestamp, 1);
+    nowTimetamp = std::string(localtimestamp);
+    last_time  = atol(nowTimetamp.c_str());
+    return 0;
+}
 void Uart::DealRecvData(const char *pData) {
 
     uint16_t ushortAdd = BUILD_UINT16(pData[3] & 0xFF, pData[4] & 0xFF);
@@ -564,7 +590,7 @@ void Uart::DealRecvData(const char *pData) {
     mssleep(50000);
     ModifyDistAddr(ushortAdd);
     mssleep(50000);
-    int iRet = 0;
+    
     switch (command) {
         case DEVICE_INF: 
             DealDataNodeInfo(pData);
@@ -579,10 +605,7 @@ void Uart::DealRecvData(const char *pData) {
             DealException(pData);
         break;
         case MEAS_EVAL:
-            iRet = DealDataNodeFeature(pData, 0);
-            if (iRet == 0){
-                DealAskTask(ushortAdd);
-            }
+            DealFeatureValue(pData, ushortAdd);
         break;
         case UPGRADE:
             if (recvcode == 0){
diff --git a/uart/uart.hpp b/uart/uart.hpp
index 5cfd88f..f9c71a6 100644
--- a/uart/uart.hpp
+++ b/uart/uart.hpp
@@ -175,6 +175,7 @@ public:
     int FindRecvPackage(int bytesRead, char* mUartRecvBuf, char* head);
 
     int DealAskTask(uint16_t ushortAdd);
+    int DealFeatureValue(const char* pData, uint16_t ushortAdd);
     int DealException(const char* pData);
     int DealReviveDuration(uint16_t ushortAdd);
     int DealConfig(uint16_t ushortAdd);
@@ -264,6 +265,8 @@ private:
     std::vector<RecvData> VecWaveDataZ;
 
     uint8_t send_data[100];
+    uint16_t last_short_addr;
+    long last_time;
     std::map<uint16_t, std::vector<uint8_t>> map_send_data;
 };