修复了程序在启动时偶尔崩溃的问题

src/pPowerManger/PowerManger.cpp

@@ -55,6 +55,10 @@ PowerManger::PowerManger()
   m_subDisSysCmd = {};
   m_subDisSysState = {};
   m_subDisSysFault = {};
+
+  //初始化系统数据
+  m_systemData = new SystemData();
+
   //初始化控制指令
   initControlCmd();
 
@@ -70,9 +74,6 @@ PowerManger::PowerManger()
   m_db = new SQLite("power_data.db");
   m_db->createTable();
 
-  //初始化系统数据
-  m_systemData = new SystemData();
-
   //初始化http服务器
   m_httpServer = new HttpServer(8090);
   m_httpServer->setPowerManger(this);