diff --git a/dataPanel/dpBarsChart.cpp b/dataPanel/dpBarsChart.cpp
index ec66ad0..02a31dc 100644
--- a/dataPanel/dpBarsChart.cpp
+++ b/dataPanel/dpBarsChart.cpp
@@ -132,6 +132,8 @@ dpBarsChart::dpBarsChart(QWidget* parent)
 
 dpBarsChart::~dpBarsChart()
 {
+    if(!m_requestDataList.isEmpty())
+        MeasurementDataManager::instance()->cancelRequest(m_requestDataList, this);
 }
 
 void dpBarsChart::initQCP()
@@ -244,6 +246,8 @@ void dpBarsChart::synchronizeConfigData(const configurationResults& cfg)
     QVector<QString> tickLabels;
 
     QHash<RealTimeDataType, QSet<QString>> groupedBars; //按数据类型对bar进行分组，以实现可以按组放置以及设置颜色等操作
+    QStringList newRequestDataList;
+    QStringList cancelRequestDataList;
     for(int i = 0; i < cfg.m_pModel_dataSource->rowCount(); i++)
     {
         QString itemText = cfg.m_pModel_dataSource->item(i, 0)->text();
@@ -293,8 +297,25 @@ void dpBarsChart::synchronizeConfigData(const configurationResults& cfg)
             double randomFloat = min + QRandomGenerator::global()->generateDouble() * (max - min);
             return QVariant::fromValue(randomFloat);
         });*/
+
+        newRequestDataList << dataID;
     }
 
+    QSet dataSet(newRequestDataList.begin(), newRequestDataList.end());
+    for(const QString& data : std::as_const(m_requestDataList))
+    {
+        if(!dataSet.contains(data))
+            cancelRequestDataList << data;
+    }
+
+    //获取实时数据
+    if(!cancelRequestDataList.isEmpty())
+        MeasurementDataManager::instance()->cancelRequest(cancelRequestDataList, this);
+    if(!newRequestDataList.isEmpty())
+        MeasurementDataManager::instance()->requestData(newRequestDataList, this);
+
+    m_requestDataList = QStringList(std::move(newRequestDataList));
+
     if(groupByType)
     {
         for(auto it = groupedBars.begin(); it != groupedBars.end(); ++it)
diff --git a/dataPanel/dpBarsChart.h b/dataPanel/dpBarsChart.h
index eec1451..bef7d8c 100644
--- a/dataPanel/dpBarsChart.h
+++ b/dataPanel/dpBarsChart.h
@@ -81,6 +81,7 @@ private:
     QHash<QString, Bars> m_bars;
     QHash<RealTimeDataType, QCPBarsGroup*> m_barsGroups;
     bool m_updateData;
+    QStringList m_requestDataList;
 };
 
 #endif
diff --git a/source/measurementDataManager.cpp b/source/measurementDataManager.cpp
index 90e6e17..8002a41 100644
--- a/source/measurementDataManager.cpp
+++ b/source/measurementDataManager.cpp
@@ -309,7 +309,7 @@ void MeasurementDataManager::requestData(const QStringList& measurements, QObjec
     for(const QString& dataID : measurements)
     {
         auto it = m_dataRequesetRecord.find(dataID);
-        if(it != m_dataRequesetRecord.end() && !it.value().contains(requester))
+        if(it != m_dataRequesetRecord.end()/* && !it.value().contains(requester)*/)
             it.value().insert(requester);
         else
         {