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IC card intelligent gas meter capable of using gas alarm switch valve

A gas alarm and switch valve technology, which is applied to alarms, coin-operated equipment for rental items, instruments, etc., can solve the problem that gas meter products cannot realize the power supply of gas alarms, and achieve battery saving and prolongation. The effect of service life

Inactive Publication Date: 2011-08-31
哈尔滨工程大学三金高新技术有限责任公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003]Existing gas meter products cannot be powered by gas alarms

Method used

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  • IC card intelligent gas meter capable of using gas alarm switch valve
  • IC card intelligent gas meter capable of using gas alarm switch valve
  • IC card intelligent gas meter capable of using gas alarm switch valve

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] Such as Figure 1-3 As shown, an IC card smart gas meter with a combustible gas alarm switch valve can be used, and its composition includes: a gas-based meter 1, a control circuit board 4 is installed inside the gas-based meter, and the control circuit board is respectively connected to a signal detector 2. A mechanical counter 3 and a gas alarm input interface 6, an IC card holder 7 is installed inside the gas base meter, and a battery box 8 is provided on the gas base meter.

Embodiment 2

[0021] Such as Figure 4 As shown, the IC card smart gas meter that can be used to switch the valve of the gas alarm, the control circuit board includes a CPU, and the CPU is respectively connected to the power supply circuit, the metering detection circuit, the valve control circuit, the card reading circuit, the alarm Input circuit and liquid crystal display circuit.

[0022] The circuit description of each part is as follows:

[0023] Power supply circuit: powered by four AA dry batteries with a voltage of 6V, charging the capacitor C3 through the blocking diode D2. C3 is a large-capacity capacitor of 10000uF. When the battery is removed, the power stored in C3 can ensure the gas meter The valve is closed. After the power supply is stabilized by the HT7133 voltage regulator integrated circuit, it outputs 3.3V voltage for use by other circuits.

[0024] If an external gas alarm is connected, the maximum voltage of the square wave output by the gas alarm is 8V, which will ...

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PUM

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Abstract

The invention relates to an IC card intelligent gas meter capable of using a gas alarm switch valve, which comprises a gas base meter (1), wherein a control circuit board (4) is arranged in the gas base meter (1), the control circuit board is respectively connected with a signal detector (2), a mechanical counter (3) and a gas alarm input interface (6), an IC card base (7) is arranged in the gas base meter (1), and a battery holder (8) is arranged on the gas base meter. The intelligent gas meter can be connected with a gas alarm.

Description

Technical field: [0001] The invention relates to an IC card intelligent gas meter which can be used to switch valves of a gas alarm. Background technique: [0002] Some of the existing IC card gas meters do not have a gas alarm input interface, and some gas meters have a gas alarm input interface, which also only has a switching value input, and only realizes the function of alarm. That is, when the gas alarm alarms, the relay contact in the alarm is connected, and the gas meter closes the valve after receiving the signal. (After the alarm signal is cancelled), when the valve needs to be opened, the card needs to be inserted, or the battery is removed, and the valve is opened after the battery is reinstalled. [0003] Existing gas meter products cannot be powered by gas alarms. Invention content: [0004] The object of the present invention is to provide an IC card smart gas meter that can be used to switch the valve of the gas alarm, so that the gas alarm can be connect...

Claims

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Application Information

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IPC IPC(8): G07F15/00G08B21/16
Inventor 辛德强黄世斌
Owner 哈尔滨工程大学三金高新技术有限责任公司
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