diff --git a/scheduler/schedule.cpp b/scheduler/schedule.cpp
index 1e11093..0ee94d2 100644
--- a/scheduler/schedule.cpp
+++ b/scheduler/schedule.cpp
@@ -207,7 +207,7 @@ int SensorScheduler::GetNextDuration(int short_addr) {
     long current_ts = GetLocalTs(); 
     long next_ts = CalcNextTimestamp(id, short_addr);
     int duration = next_ts - current_ts;
-    if (duration <= 0 || duration > eigen_value_send_interval_) {
+    if (duration <= 10 || duration > eigen_value_send_interval_) {
         zlog_warn(zct, "[Nxt] exception duration: %d", duration);
         duration = eigen_value_send_interval_;
     }