diff --git a/influxdb_api.py b/influxdb_api.py
index 31ea5dd..73e3ce4 100644
--- a/influxdb_api.py
+++ b/influxdb_api.py
@@ -1346,10 +1346,8 @@ def query_SCADA_data_by_device_ID_and_time_range(query_ids_list: List[str], star
     :param client: 已初始化的 InfluxDBClient 实例。
     :return:
     """
-    if client.ping():
-        print("{} -- Successfully connected to InfluxDB.".format( datetime.now().strftime('%Y-%m-%d %H:%M:%S')))
-    else:
-        print("{} -- Failed to connect to InfluxDB.".format( datetime.now().strftime('%Y-%m-%d %H:%M:%S')))
+    if client.ping(): print("{} -- Successfully connected to InfluxDB.".format( datetime.now().strftime('%Y-%m-%d %H:%M:%S')))
+    else: print("{} -- Failed to connect to InfluxDB.".format( datetime.now().strftime('%Y-%m-%d %H:%M:%S')))
 
     query_api = client.query_api()
     # 将北京时间转换为 UTC 时间
@@ -1413,6 +1411,7 @@ def query_all_SCADA_records_by_date(query_date: str, bucket: str="SCADA_data", c
     # 将北京时间转换为 UTC 时间
     
     bg_start_time, bg_end_time = time_api.parse_beijing_date_range(query_date)
+    bg_end_time = bg_start_time + timedelta(hours=2)            # 服务器性能不行，暂时返回2个小时的数据
     utc_start_time = bg_start_time.astimezone(timezone.utc)
     utc_end_time = bg_end_time.astimezone(timezone.utc)
 
@@ -1847,12 +1846,9 @@ def query_all_record_by_date_property(query_date: str, type: str, property: str,
     :param client: 已初始化的InfluxDBClient 实例。
     :return: list(dict): result_records
     """
-    if client.ping():
-        print("{} -- Successfully connected to InfluxDB.".format(
-            datetime.now().strftime('%Y-%m-%d %H:%M:%S')))
-    else:
-        print("{} -- Failed to connect to InfluxDB.".format(
-            datetime.now().strftime('%Y-%m-%d %H:%M:%S')))
+    if client.ping(): print("{} -- Successfully connected to InfluxDB.".format( datetime.now().strftime('%Y-%m-%d %H:%M:%S')))
+    else: print("{} -- Failed to connect to InfluxDB.".format( datetime.now().strftime('%Y-%m-%d %H:%M:%S')))
+
     query_api = client.query_api()
     # 确定 measurement
     if type == "node":
@@ -1865,6 +1861,7 @@ def query_all_record_by_date_property(query_date: str, type: str, property: str,
     # start_time = (datetime.strptime(query_date, "%Y-%m-%d") - timedelta(days=1)).replace(hour=16, minute=0, second=0, tzinfo=timezone.utc).isoformat()
 
     bg_start_time, bg_end_time = time_api.parse_beijing_date_range(query_date)
+    bg_end_time = bg_start_time + timedelta(hours=2)            # 服务器性能不行，暂时返回2个小时的数据
     utc_start_time = time_api.to_utc_time(bg_start_time)
     utc_end_time = time_api.to_utc_time(bg_end_time)