diff --git a/src/main/java/com/example/device/controller/DeviceStatus.java b/src/main/java/com/example/device/controller/DeviceStatus.java
index 214f2a1..88b6460 100644
--- a/src/main/java/com/example/device/controller/DeviceStatus.java
+++ b/src/main/java/com/example/device/controller/DeviceStatus.java
@@ -171,10 +171,10 @@ public class DeviceStatus {
      *
      */
 
-    @Scheduled(cron = "0 30 11,15,17,23 * * ?")
+    @Scheduled(cron = "0  8 * * ?")
     public void calculateSuccessRate() {
 
-        LocalDateTime todayStart = LocalDateTime.now().truncatedTo(ChronoUnit.DAYS);
+        LocalDateTime todayStart = LocalDateTime.now().truncatedTo(ChronoUnit.DAYS).minusDays(1);
         LocalDateTime currentTime = LocalDateTime.now();
 
 
@@ -197,7 +197,7 @@ public class DeviceStatus {
             LocalDateTime dateTime = LocalDateTime.now();
             DateTimeFormatter formatter = DateTimeFormatter.ofPattern("yyyy-MM-dd HH:mm:ss");
             String formattedDateTime = dateTime.format(formatter);
-            String filePath = "/home/excel/"+formattedDateTime+"--deviceStatus.xlsx";
+            String filePath = "/Users/mengfanfeng/Downloads/excel/"+formattedDateTime+"--deviceStatus.xlsx";
             try (Workbook workbook = new XSSFWorkbook()) {
                 FileOutputStream fileOut = new FileOutputStream(filePath);
                 workbook.write(fileOut);