Integrated charging and acquisition terminal

• Main Authors: LIU KUN, CHEN XIANSHUN, YUAN SHIJIONG, LU BIN, WEI DENGXING, LIANG ZUQUAN, BAI TAI, YIN SHANFENG
• Format: Patent
• Language: Chinese; English
• Published: 25.04.2012
• Subjects: CHECKING-DEVICES; COIN-FREED OR LIKE APPARATUS; PHYSICS

The invention relates to an integrated charging and acquisition terminal, belonging to an electronic device for charging and data acquisition of an intelligent electric meter. The integrated charging and acquisition terminal mainly comprises a display unit, an IC (integrated circuit) card interface circuit, an encryption and authentication interface circuit, an RS485 interface circuit and a powercarrier circuit which are connected with a single chip microcomputer, wherein the IC card interface circuit and the encryption and authentication interface circuit are formed by adopting an electrostatic protection chip ESDA6V1-5W6 and an ESAM (embedded secure access module) chip; the RS485 interface chip in the RS485 interface circuit is connected with the single chip microcomputer by two optical coupling circuits; a thermistor, a piezoresistor and another thermistor are connected between an A end and a B end of the RS485 interface chip in sequence and in series; and the A end and the B end are respectively connected