IC card intelligent gas meter
A gas meter, intelligent technology, applied in the direction of instruments, coin-operated equipment for distributing discrete items, coinless or similar appliances, etc., can solve the problems of non-measurement and inaccuracy of gas meters, so as to ensure measurement and avoid leaked effect
Active Publication Date: 2010-07-07
CHENGDU QINCHUAN IOT TECH CO LTD
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Problems solved by technology
[0004] In order to solve the problem that the existing IC card smart gas meter may not measure the gas meter during the gas consumption process and the metering is inaccurate after exceeding the flow rate, the present invention provides an IC card smart gas meter that can effectively prevent through-flow and excess flow rate. Gas Meter
Method used
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[0012] The present invention will be further described below in conjunction with the accompanying drawings.
[0013] as attached figure 1 , 2 As shown, the present invention samples the amount of passing gas by counting the reed switch 6, and transmits the sampling result to the CPU controller 5, utilizes the internal clock function of the CPU controller 5, sets and stores the IC card smart gas meter through program compilation The start time of power-on valve opening is set in advance by the program from the power-on timing to the first sampling signal cycle. After the electromechanical valve is opened, if the reed switch has no acquisition signal within the set period, the CPU will issue a program instruction to close the valve to the electromechanical valve control circuit to close the electromechanical valve, thereby closing the gas source input port and preventing the gas from flowing through. Base meter to prevent the user from continuing to use gas when the gas meter ...
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The invention relates to an IC card intelligent gas meter which prevents direct connection and super flow rate, which comprises a base meter (1) and a CPU controller (5) which are connected. The IC card intelligent gas meter is characterized in that an electro mechanical valve (4) is arranged in the base meter (1), the base meter (1) is connected with an air source input (2), an air source output(3) and the CPU controller (5), is further connected with a counting tongue tube (6), and is connected with the base meter (1) and the CPU controller (5) simultaneously. After the electro mechanical valve (4) is opened, if the counting tongue tube (6) has no acquisition signals in a setting period, a programmed instruction is sent to an electro mechanical valve control circuit (8) by the CPU controller (5) to close a valve, thereby closing the air source input (2), preventing gas from flowing through the base meter (1), and avoiding users continually using the gas when having no measurement. The IC card intelligent gas meter can prevent the situation that the measurement of the gas meter is not accurate under the situation that the gas is used in the super flow rate.
Description
technical field [0001] The invention relates to a gas meter, in particular to an IC card smart gas meter which prevents through-through and excess flow. Background technique [0002] At present, the working principle of the common IC card smart gas meter in China is: the user pays the gas fee to the management department, the management department enters the gas purchase amount into the IC card, and the user enters the information in the card into the smart gas meter, and the smart gas meter automatically turns on. Valve gas supply, in the normal gas consumption process of the user, the base meter measures the gas consumption, and the signal collected by the base meter is sent to the control circuit to convert it into digital measurement, and the microcomputer automatically checks and subtracts the gas consumption according to the digital measurement number, and the purchased gas volume When the gas is exhausted, the smart gas meter will automatically close the valve and cut...
Claims
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IPC IPC(8): G07F15/06
Inventor 邵泽华雷学强饶锐
Owner CHENGDU QINCHUAN IOT TECH CO LTD