Many companies are using GPRS / CDMA network monitoring data, e.g. using sensors to collect and analyze data.

     In normal operation mode, wireless transmission module delivers instrument data, via wireless network, to data management server on Internet or private net. Data server connects to corporate network via DDN line, ADSL, ISDN, APN, VPDN, etc. Control center server establishes a central database to store received data and make reports and instructions, in which analysis and decision module could be developed, to monitor and judge work status of terminals and deliver instructions to data terminals to implement.