diff --git a/scheduler/schedule.cpp b/scheduler/schedule.cpp
index 84867dd..9467a0e 100644
--- a/scheduler/schedule.cpp
+++ b/scheduler/schedule.cpp
@@ -1332,6 +1332,7 @@ int SensorScheduler::CloseDebugMode() {
 }
 
 void SensorScheduler::GenerateUpgradeSchedule() {
+    zlog_debug(zbt, "GenerateUpgradeSchedule start");
     if (upgrade_list_.size() == 0) {
         return;
     }
@@ -1368,23 +1369,25 @@ void SensorScheduler::GenerateUpgradeSchedule() {
     }
 
     if (upgrade_size == 1) { // 只有一个传感器的话，两分钟一次波形
+        zlog_debug(zbt, "upgrade_size 1");
         int j = 0;
-        int k = 0;
+        // int k = 0;
         for (int i = previous_wave_slice+1; i < previous_wave_slice+1+available_slice_; i=i+2) {
             j = i % available_slice_;
             if (j == 0) {
-                j = i;
+                j = 1;
             }
-            k = k % upgrade_size;
+            // k = k % upgrade_size;
             upgrade_slice_sensor_id_[j] = short_addr_list[0];  
         }      
     } else {
+        zlog_debug(zbt, "upgrade_size %d", upgrade_size);
         int j = 0;
         int k = 0;
         for (int i = previous_wave_slice+1; i < previous_wave_slice+1+available_slice_; ++i) {
             j = i % available_slice_;
             if (j == 0) {
-                j = i;
+                j = 1;
             }
             k = k % upgrade_size;
             upgrade_slice_sensor_id_[j] = short_addr_list[k];
@@ -1400,6 +1403,7 @@ void SensorScheduler::GenerateUpgradeSchedule() {
     std::ofstream out_file(UPGRADE_SCHEDULE_CONFIG);
     streamWriter.write(out_file, root);
     out_file.close();
+    zlog_debug(zbt, "GenerateUpgradeSchedule end");
 }
 
 int SensorScheduler::CloseUpgradeMode() {