diff --git a/logic/service/space/space.go b/logic/service/space/space.go
index 755312853..0fb1dea4e 100644
--- a/logic/service/space/space.go
+++ b/logic/service/space/space.go
@@ -123,7 +123,7 @@ func ParseCoordinateString(s string) []infomodel.Pos {
 }
 func (t *Space) Next(time.Time) time.Time {
 
-	return time.Now().Add(grand.D(10*time.Second, 30*time.Second))
+	return time.Now().Add(grand.D(10*time.Minute, 30*time.Minute))
 
 }
 func (ret *Space) init() {