增加更新时间

Healthbeat.py

@@ -5,6 +5,7 @@ import logging
 import pymysql
 import threading
 import json
+import datetime
 from dotenv import load_dotenv
 
 class Camera:
@@ -31,7 +32,7 @@ class Camera:
 
             with conn:
                 with conn.cursor() as cursor:
-                    cursor.execute("update devices set state = %s where id = %s", (status, self.id))
+                    cursor.execute("update devices set state = %s, updated_at = %s where id = %s", (status, datetime.datetime.now(), self.id))
                 conn.commit()
 
 def init_logger():