diff --git a/das/src/main/java/com/das/modules/calc/service/CalcService.java b/das/src/main/java/com/das/modules/calc/service/CalcService.java
index c9669f0e..3b1ed193 100644
--- a/das/src/main/java/com/das/modules/calc/service/CalcService.java
+++ b/das/src/main/java/com/das/modules/calc/service/CalcService.java
@@ -138,6 +138,9 @@ public class CalcService {
 
         FunctionWindSpeedFactor windSpeedFactor = new FunctionWindSpeedFactor(dataService,cacheService);
         aviator.addFunction(windSpeedFactor);
+
+        FunctionIsOnline isOnline = new FunctionIsOnline(adminRedisTemplate, cacheService);
+        aviator.addFunction(isOnline);
     }
 
     /**