reducing the impact of human PC-based computer system.
(Human factors, including: hardware failure of the operating system instability, PC cards, PC viruses, the staff free to use the PC to cause failure, and many other factors)
  Simple user operation
A:Operational control of the source, the user can
     freely select the control mode; the system supports
     the client, Internet Explorer, keyboard and three
     control methods
B:Simple operation of network control keyboard
C:Simple remote control monitoring by using the
    client software,internet explorer or mobile phone
D:Central database is using the centralized
   configuration, different control source can quickly