diff --git a/event_smart/src/main/java/com/njcn/product/event/transientes/service/impl/SendMessageServiceImpl.java b/event_smart/src/main/java/com/njcn/product/event/transientes/service/impl/SendMessageServiceImpl.java
index 48a3874..d97d234 100644
--- a/event_smart/src/main/java/com/njcn/product/event/transientes/service/impl/SendMessageServiceImpl.java
+++ b/event_smart/src/main/java/com/njcn/product/event/transientes/service/impl/SendMessageServiceImpl.java
@@ -358,7 +358,7 @@ public class SendMessageServiceImpl implements SendMessageService {
         }
 
         // 条件3: 电压降至70%—80%，持续时间超过500ms
-        if (value >= 70 && value < 80 && time >= 500) {
+        if (value >= 70 && value <= 80 && time >= 500) {
             return true;
         }