diff --git a/gb28181-wvp-proxy-service/src/main/java/cn/skcks/docking/gb28181/wvp/service/gb28181/RealtimeManager.java b/gb28181-wvp-proxy-service/src/main/java/cn/skcks/docking/gb28181/wvp/service/gb28181/RealtimeManager.java
index dbc4dfc..416544e 100644
--- a/gb28181-wvp-proxy-service/src/main/java/cn/skcks/docking/gb28181/wvp/service/gb28181/RealtimeManager.java
+++ b/gb28181-wvp-proxy-service/src/main/java/cn/skcks/docking/gb28181/wvp/service/gb28181/RealtimeManager.java
@@ -23,7 +23,7 @@ import java.util.concurrent.*;
 @Service
 @RequiredArgsConstructor
 public class RealtimeManager {
-    public final static String REALTIME_KEY = "realtime_";
+    public final static String REALTIME_KEY = "realtime:";
     private final ZlmMediaService zlmMediaService;
     private final DeviceService deviceService;
     private final DockingService dockingService;