diff --git a/v2/transmitter.py b/v2/transmitter.py
index d38a9be..7606d48 100644
--- a/v2/transmitter.py
+++ b/v2/transmitter.py
@@ -34,6 +34,7 @@ class Transmitter:
                 yield tb, buffer
         if self.ping_ts + 60 < ts:
             # 保持连接
+            self.ping_ts = ts
             print('保持连接')
             self.db_client.execute('select 1')