diff --git a/huagao/Device/ImageMatQueue.cpp b/huagao/Device/ImageMatQueue.cpp
index be3e02ca..bccfffa3 100644
--- a/huagao/Device/ImageMatQueue.cpp
+++ b/huagao/Device/ImageMatQueue.cpp
@@ -805,10 +805,10 @@ void ImageMatQueue::duplex_process(CacheInfo info)
 				Mat ret = m_mlt.GetMultiFilterMat(mats[i], 2);
 				mats[i].release();
 				if (!ret.empty()) {
-					if (!scanParam.is_duplex && i == 1) {
-						ret.release();
-						break;
-					}
+					//if (!scanParam.is_duplex && i == 1) {
+					//	ret.release();
+					//	break;
+					//}
 					Mat2Bmp mb(ret, scanParam.resolution_dst);
 					auto data = mb.getBmpDataBuffer();
 					ret.release();
diff --git a/huagao/ImageProcess/ImageApplyOutHole.cpp b/huagao/ImageProcess/ImageApplyOutHole.cpp
index e34a8f8d..888fa962 100644
--- a/huagao/ImageProcess/ImageApplyOutHole.cpp
+++ b/huagao/ImageProcess/ImageApplyOutHole.cpp
@@ -76,10 +76,14 @@ void CImageApplyOutHole::apply(std::vector<cv::Mat>& mats, bool isTwoSide)
 	cv::Mat front_thre, back_thre;
 	hg::threshold_Mat(front, front_thre, m_threshold);
 	hg::threshold_Mat(back, back_thre, m_threshold);
+	//cv::imwrite("front_thre.jpg", front_thre);
+	//cv::imwrite("back_thre.jpg", back_thre);
 
 	cv::Mat element = getStructuringElement(cv::MORPH_RECT, cv::Size(5 * resize_scale, 1));
 	cv::morphologyEx(front_thre, front_thre, cv::MORPH_OPEN, element, cv::Point(-1, -1), 1, cv::BORDER_CONSTANT, cv::Scalar::all(0));
 	cv::morphologyEx(back_thre, back_thre, cv::MORPH_OPEN, element, cv::Point(-1, -1), 1, cv::BORDER_CONSTANT, cv::Scalar::all(0));
+	//cv::imwrite("front_thre2.jpg", front_thre);
+	//cv::imwrite("back_thre2.jpg", back_thre);
 
 	//反面二值化图像水平翻转
 	cv::flip(back_thre, back_thre, 1);  //1:Horizontal
@@ -87,8 +91,8 @@ void CImageApplyOutHole::apply(std::vector<cv::Mat>& mats, bool isTwoSide)
 	//正反面图像寻边
 	std::vector<std::vector<cv::Point>> contours_front, contours_back;
 	std::vector<cv::Vec4i> b1_front, b1_back;
-	hg::findContours(front_thre.clone(), contours_front, b1_front, cv::RETR_EXTERNAL);
-	hg::findContours(back_thre.clone(), contours_back, b1_back, cv::RETR_EXTERNAL);
+	hg::findContours(front_thre.clone(), contours_front, b1_front, cv::RETR_CCOMP);
+	hg::findContours(back_thre.clone(), contours_back, b1_back, cv::RETR_CCOMP);
 
 	//提取正反面图像最大轮廓
 	for (size_t i = 0; i < contours_front.size(); i++)
diff --git a/huagao/ImageProcess/ImageApplyOutHole.h b/huagao/ImageProcess/ImageApplyOutHole.h
index 2763c153..77779d9e 100644
--- a/huagao/ImageProcess/ImageApplyOutHole.h
+++ b/huagao/ImageProcess/ImageApplyOutHole.h
@@ -24,7 +24,8 @@
  *				 2022/09/15 v1.8.4 修复导致崩溃的BUG
  *				 2022/09/16 v1.9   优化内存消耗
  *				 2022/09/16 v1.9.1 修复缩放比例的逻辑错误。
- * 版本号：v1.9.1
+ *				 2022/11/17 v1.9.2 修复寻找孔洞轮廓BUG。
+ * 版本号：v1.9.2
 
  * ====================================================
  */
@@ -86,4 +87,3 @@ private:
 };
 
 #endif // !IMAGE_APPLY_OUT_HOLE_H
-
diff --git a/huagao/huagaods.cpp b/huagao/huagaods.cpp
index db6823ec..8cdfa3fd 100644
--- a/huagao/huagaods.cpp
+++ b/huagao/huagaods.cpp
@@ -1006,7 +1006,7 @@ Result HuagaoDs::identityOpenDs(const Identity&) {
 							scanner.reset(new GScanO1003399());
 						else {
 #ifdef ANDROIDSERIAL
-							if (pid == 0x402 || pid == 0x302)
+							if (pid == 0x402 || pid == 0x302 || pid == 0x7002)
 								scanner.reset(new GScan439Android());
 							else
 								scanner.reset(new GScanO400Android());
diff --git a/huagao/stdafx.h b/huagao/stdafx.h
index 5253b718..09645252 100644
Binary files a/huagao/stdafx.h and b/huagao/stdafx.h differ