diff --git a/build.sh b/build.sh
index 257cc79..283ca87 100755
--- a/build.sh
+++ b/build.sh
@@ -4,7 +4,7 @@ cpu=$(arch) #cpu架构
 sys=$(cat /etc/issue)
 sys=${sys%% *} #操作系统
 mainverstr="s/ver_1/4/g"  #版本控制
-minver="18"
+minver="19"
 minverstr="s/ver_2/"
 verstr3="s/ver_3/"
 ver3=10
diff --git a/hgdriver/hgdev/hg_scanner_239.cpp b/hgdriver/hgdev/hg_scanner_239.cpp
index b584049..392a654 100644
--- a/hgdriver/hgdev/hg_scanner_239.cpp
+++ b/hgdriver/hgdev/hg_scanner_239.cpp
@@ -1638,9 +1638,9 @@ void hg_scanner_239::thread_handle_usb_read(void)
 				// fetch all buffered images and exit ...
 				//while(!is_dev_image_process_done())
 				if (img_conf_.resolution_dst > 200 && is_quality_ == IMG_QUALITY)
-					std::this_thread::sleep_for(std::chrono::milliseconds(2000));
+					std::this_thread::sleep_for(std::chrono::milliseconds(5000));
 				else
-					std::this_thread::sleep_for(std::chrono::milliseconds(1000));
+					std::this_thread::sleep_for(std::chrono::milliseconds(2000));
 
 				while (get_image_count() > 0)
 				{