Remote meter reading method and apparatus

Details Remote meter reading method and apparatus Remote meter reading method and apparatus

H - Electricity

04

M

379/5

H04M 11/06 (2006.01) G01D 4/00 (2006.01) H04M 11/00 (2006.01)

Patent

CA 1314338

P-363 REMOTE METER READING METHOD AND APPARATUS ABSTRACT OF THE DISCLOSURE A remote meter reading system has equipment at a telephone company office coupled by modems to a utility company computer which issues requests for customer data. Telephone test trunks are used to access individual meter sites and initiate meter readings using a number of single freguency bursts. Meter sending units emit a pulse for each unit of consumption and a microprocessor counts the pulses in RAM to derive separate meter readings. When interrogated, the microprocessor outputs the readings in a binary coded decimal format to a DTMF tone generator which emits each decimal number as a tone pair which is transmitted via the telephone line and is detected at the telephone company, translated into ASCII code and transmitted by modem to the utility computer.

601232

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