Patent ID: 7064678

Claim:
A wireless terminal for reading a meter, comprising: a jointing member formed on the base of a case for combining the wireless terminal with the meter; a power supply section for supplying power to each component, wherein the power supply section is constituted so as to supply DC power to each component by using an AC power source or a rechargeable battery, wherein the power supply section includes: DC power supply means for converting AC power into a DC voltage of a specific level; a circuit for charging the rechargeable battery with power output from the DC power supply means; voltage output means for outputting a voltage for a normal operation when either one of voltages supplied from the DC power supply means or the rechargeable battery is normal; a circuit for charging the rechargeable battery with the power output from the DC power supply means; and charging voltage output means for outputting the power of the rechargeable battery to the means for determining power failure; a data transceiver section for receiving a meter-reading command and transmitting the read data by communicating with a wireless communication network in a bi-directional manner; a slave controller section for decoding/encoding the data to/from the data transceiver section; an image sensor for generating digital information of the consumed amount by sensing the image on the meter and by compressing the sensed data; a memory for storing temporary data or a program for operation; and a master controller section for controlling the data transceiver section, for driving the image sensor in response to the meter-reading command decoded from the slave controller section, and for controlling the digital information of the consumed amount provided from the image sensor to be temporarily stored in the memory and to be output after encoded by the slave controller section.