1

src/main/java/com/iflytop/a800/device/Feeder.java

@@ -23,6 +23,10 @@ public class Feeder {
         UfCommon.delay(300);
         String result = UfActuatorCmdExecutor.execute("TubeRackScanner", "code_scanner_read_scanner_result");
         UfActuatorCmdExecutor.execute("TubeRackScanner", "code_scanner_stop_scan");
+        if ("".equals(result)) {
+            throw new RuntimeException("试管类型条码扫描失败");
+        }
+
         var codeBytes = Base64.getDecoder().decode(result);
         var code = new String(codeBytes);
         switch ( code.trim() ) {