diff --git a/station_broadcast.lua b/station_broadcast.lua
index 11a7b49..789cf4e 100644
--- a/station_broadcast.lua
+++ b/station_broadcast.lua
@@ -2584,7 +2584,7 @@ function Main.loop()
                             end
                         end
                         
-                        if etaSeconds >= 0 and etaSeconds < 30 then
+                        if etaSeconds >= 0 and etaSeconds <= 45 then
                             seenApproachKeys[announceKey] = true
                             local pending = State.pendingApproaching[announceKey]
                             if not pending then
@@ -2716,8 +2716,8 @@ function Main.loop()
                             end
                         end
 
-                        -- 触发逻辑：当 ETA 已经明确小于30秒（包括15秒、现在等），且之前没有播报过
-                        if etaSeconds >= 0 and etaSeconds < 30 then
+                        -- 触发逻辑：当 ETA 已经明确不大于45秒，且之前没有播报过
+                        if etaSeconds >= 0 and etaSeconds <= 45 then
                             seenApproachKeys[announceKey] = true
                             local pending = State.pendingApproaching[announceKey]
                             if not pending then