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Prepaid wireless smart gas meter

A gas meter and prepaid technology, which is applied in the direction of coinless or similar appliances, instruments, and coin-operated equipment for distributing discrete items, etc., can solve the problem that gas operation and management organizations are difficult to manage and control all gas users, IC Card prepaid gas meters cannot complete network interconnection and other problems, so as to avoid the use of blind spots, improve the scope of application, and enhance the effect of transmitting frequency and intensity

Inactive Publication Date: 2011-05-25
GUILIN LITONG ELECTRONICS TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The technical problem to be solved by the present invention is that the existing IC card prepaid gas meter cannot complete the network interconnection, and the gas operation and management organization is difficult to realize the management and regulation of all gas users. To provide a prepaid wireless smart gas meter

Method used

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Examples

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Embodiment Construction

[0018] figure 1 It is a schematic circuit diagram of a prepaid wireless smart gas meter of the present invention, which is mainly composed of a power supply, an embedded processor, a metering sensor unit, a valve control unit, an IC card reading and writing unit, a storage unit, a display unit and an RF module; The metering sensor unit, valve control unit, IC card read-write unit, storage unit, display unit and RF module are all connected with the embedded processor. The RF module is mainly composed of RF transceiver, power amplifier circuit, antenna matching circuit and radio frequency transceiver antenna. The power amplifying circuit includes a signal receiving preamplifier circuit, a signal transmitting preamplifying circuit, and two four-channel double-stage double-throw analog switch U8 at the radio frequency end and an analog switch U7 at the antenna end, the signal receiving preamplifier circuit and the signal transmitting The preamplifier circuit is connected in paral...

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Abstract

The invention discloses a prepaid wireless smart gas meter. The gas meter comprises a metering sensor unit, a valve control unit, an IC card read-write unit, a storage unit, a display unit and an RF module which are connected with an embedded processor, wherein the RF module mainly comprises an RF transceiver, a power amplifying circuit, an antenna matching circuit and an RF transceiving antenna; the power amplifying circuit comprises a signal receiving preamplification circuit, a signal transmitting preamplification circuit, a four-channel double-stage double-throw RF terminal analog switch and a four-channel double-stage double-throw antenna terminal analog switch; and the signal receiving preamplification circuit and the signal transmitting preamplification circuit are respectively connected between the RF terminal analog switch and the antenna terminal analog switch in parallel. The prepaid wireless smart gas meter can complete internetworking and overcome the defect that the gas operation and management mechanism is hard to realize management and regulation and control of all the gas users.

Description

technical field [0001] The invention relates to the field of gas meter reading, in particular to a prepaid wireless intelligent gas meter. Background technique [0002] Manual meter reading has always been the most traditional gas meter reading method. The function of the gas meter is to record the gas volume used by the user, and then the meter reading will make statistics within a period of time, and convert the corresponding fee to the user. This working method The disadvantage is that the workload is heavy, and the money is often not received due to various reasons, which has caused a huge financial burden on the gas operating companies. With the development of electronic technology, my country's gas industry has begun to promote the use of IC card prepaid gas meters. This IC card prepaid gas meter is equipped with an IC card holder or a short-range radio frequency module. After the card is inserted into the IC card holder or comes into contact with the radio frequency m...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G07F15/06
Inventor 高柱荣罗源伟刘洪林梁文耕张有坚傅云生
Owner GUILIN LITONG ELECTRONICS TECH
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