On-line electric energy monitoring terminal device

The utility model discloses an on-line electric energy monitoring terminal device which belongs to the field of electric power monitoring and which comprises a display, an indicating lamp, a keyboard and a circuit board. The circuit board is provided with a current input module, a voltage input module, an operational amplifier, a filter module, an A/D converter, a CPU (Central Processing Unit), an RAM (Random Access Memory), an ROM (Read Only Memory), a Flash Memory, a network communication module, a GPS message time setting module, an IRIG-B code time setting interface, a telecommand optical coupler input interface, a communication interface, a debugging signal output interface, a relay output interface and a debugging host computer interface. Output ends of the current input module and the voltage input module are connected with an input end of the operational amplifier. An output end of the operational amplifier is connected with an input end of the filter module. An output end of the filter module is connected with an input end of the A/D converter. An output end of the A/D converter is connected with the CPU. The on-line electric energy monitoring terminal device provided by the utility model is fast in data processing speed, high in data processing precision and large in data memory space, and can timely analyze and display data or a graph of electric energy quality.