diff --git a/src/forms/scan/ScanFormWidget.cpp b/src/forms/scan/ScanFormWidget.cpp
index 76b5a60..f3dfd35 100644
--- a/src/forms/scan/ScanFormWidget.cpp
+++ b/src/forms/scan/ScanFormWidget.cpp
@@ -16,6 +16,7 @@
 #include <qdebug.h>
 #include "log/UserOperationLog.h"
 #include <QLabel>
+#include "json/jsonobject.h"
 
 #ifdef WIN32
 #else
@@ -229,6 +230,11 @@ ScanFormWidget::ScanFormWidget(QWidget* parent) : TabFormWidget(parent) {
 	connect(btnScan, &QToolButton::clicked, [=]() {
 		QString patientInf(patient_information->getCurrentPatientJsonString(false));
 		LOG_USER_OPERATION(StartScan);
+		if (!JsonObject::Instance()->getEmptyScanID()){
+		    QString msg(tr("No refresh data exists, please do Refresh operation first."));
+            EventCenter::Default()->triggerEvent(GUIEvents::DeviceErrorRaise, nullptr, (QObject*)(&msg));
+		    return;
+		}
 		EventCenter::Default()->triggerEvent(GUIEvents::RequestPatientScan, nullptr, (QObject*)(&patientInf));
 		});
 	connect(btnStop, &QToolButton::clicked, [=]() {
diff --git a/src/json/ScanJson.cpp b/src/json/ScanJson.cpp
index e6145b0..adae9c3 100644
--- a/src/json/ScanJson.cpp
+++ b/src/json/ScanJson.cpp
@@ -8,7 +8,11 @@
 #include <QCoreApplication>
 void ScanJson::save() {
     if (!root) return;
-    QFile f(QString("%1/%2.json").arg(QCoreApplication::applicationDirPath(),scanID.c_str()));
+    QDir d(QCoreApplication::applicationDirPath());
+    if (!d.exists("jsons")){
+        d.mkdir("jsons");
+    }
+    QFile f(QString("%1/jsons/%2.json").arg(QCoreApplication::applicationDirPath(),scanID.c_str()));
     f.open(QFileDevice::ReadWrite);
     cJSON_AddItemToObject(root, "EmptyScanID", cJSON_CreateString(emptyScanID.c_str()));
     cJSON_AddItemToObject(root, "ScanID", cJSON_CreateString(scanID.c_str()));
diff --git a/src/json/ScanJson.h b/src/json/ScanJson.h
index 296dda4..c4d7a8b 100644
--- a/src/json/ScanJson.h
+++ b/src/json/ScanJson.h
@@ -7,6 +7,7 @@
 
 #include <string>
 #include "cJSON.h"
+#include "jsonobject.h"
 
 class ScanJson {
 public:
@@ -27,8 +28,10 @@ public:
     void setEmptyScanID(const char * id){
         emptyScanID.clear();
         emptyScanID.append(id);
+        JsonObject::Instance()->setEmptyScanID(id);
         setScanID(id);
     }
+
     void save();
     static ScanJson* Current(){
         static ScanJson instance;
diff --git a/src/json/jsonobject.cpp b/src/json/jsonobject.cpp
index 58881f5..6d694ee 100644
--- a/src/json/jsonobject.cpp
+++ b/src/json/jsonobject.cpp
@@ -30,7 +30,13 @@ void JsonObject::setJsonString(const char* catergory, const char* stringName, co
 	if (!first) return;
 
 	cJSON* Item = cJSON_CreateString(stringValue);
-	cJSON_ReplaceItemInObject(first, stringName, Item);
+    cJSON* valItem = cJSON_GetObjectItem(first, stringName);
+	if (valItem){
+        cJSON_ReplaceItemInObject(first, stringName, Item);
+    }
+	else{
+        cJSON_AddItemToObject(first, stringName , Item);
+    }
 	if (save)
 	{
 		savecfg();
@@ -516,4 +522,12 @@ void JsonObject::setIpRouteList(const QList<QStringList>& list)
 	savecfg();
 }
 
+void JsonObject::setEmptyScanID(const char *id) {
+    setJsonString("deviceparam","EmptyScanID",id, true);
+}
+
+const char *JsonObject::getEmptyScanID() {
+    return getJsonString("deviceparam","EmptyScanID");
+}
+
 
diff --git a/src/json/jsonobject.h b/src/json/jsonobject.h
index 903f930..7b0daa8 100644
--- a/src/json/jsonobject.h
+++ b/src/json/jsonobject.h
@@ -90,6 +90,9 @@ public:
     bool getScanConfirm();
     void setScanConfirm(bool val);
 
+    const char* getEmptyScanID();
+    void setEmptyScanID(const char* id);
+
 	IpAddr getDefaultIpAddr();
 	void setDefaultIpAddr(const IpAddr& addr);