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Prepaid Energy Meter (AT89S52)

Discussion in 'Doubts in My Projects' started by Binu, Jun 2, 2007.

  1. Binu

    Binu Administrator

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    A scheme of Electricity billing system called ?PREPAID ENERGY METER WITH TARIFF INDICATOR? can facilitate in improved cash flow management in energy utilities and can reduces problem associated with billing consumer living in isolated area and reduces deployment of manpower for taking meter readings.
    Every consumer can buy a memory card (is nothing but an EEPROM IC) with a password stored inside it using a MC program. The memory card is available at various ranges (ie. Rs 50, Rs 100, Rs 200 etc?).In our project we have given the name for memory card as smart card.
    When the consumer insert a smart card into the card reader which is connected in ?prepaid energy meter with tariff indicator?kit.Then the card reader will read the stored information and delete the information from the EEPROM IC(smart card) using the MC program. So that the smart card cannot be reused by others. Suppose if a consumer buy a card for Rs.50/- he / she can insert this amount through the card reader so that prepaid energy meter with tariff indicator kit will be activated. According to the power consumption the amount will be reduced. When the amount is over, the relay will automatically shutdown the whole system. In our project we also have a provision to give an alarm sound to consumer before the whole amount is reduced.
    Program: View attachment prepaid.zip
    mkbutan likes this.
  2. pheonix

    pheonix New Member

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    hii i want to have a few minor details for prepaid enrgymeter like card reader and type of card to be used waitin ur reply

    pagrawal
  3. pheonix

    pheonix New Member

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    hii can u also give me some information about tariff indicator kit
  4. Binu

    Binu Administrator

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    The cards are nothing but the EEPROM chip AT24C04.

    J.Binu
  5. gautamicy

    gautamicy New Member

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    hello binu sir... m asking a pretty nooby question so please understand... i have no idea about this a51 file... can u give me a little detail about this... maybe if u cant post a sticky about the a51 file for new users like me... Thanks
  6. Binu

    Binu Administrator

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    I have posted a sticky topic for it, check it.

    J.Binu
  7. nepalkrishna

    nepalkrishna New Member

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    there is error in download.why?
  8. nepalkrishna

    nepalkrishna New Member

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    hi ....can i get the detail description and schematic daigram of the prepaid energy meter?if posible hopely waiting...
  9. Binu

    Binu Administrator

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    The circuit diagram of the card is given below
    [​IMG]

    J.Binu
  10. Binu

    Binu Administrator

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    yes the EEPROM in the circuit is used to store the balance amount and the Meter readings.

    J.Binu
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