Ultrasonic IC card flowmeter

Abstract

The utility model provides an ultrasonic IC (integrated circuit) card flowmeter, and aims to solve the technical problems that the conventional ultrasonic flowmeter needs to be matched with an external circuit of an IC card controller for use, and is complicated in structure and higher in cost. The ultrasonic IC card flowmeter comprises a single chip microcomputer; the ultrasonic metering module is connected with the single-chip microcomputer and is used for collecting gas consumption and feeding data back to the single-chip microcomputer; the electric valve is in two-way connection with the single-chip microcomputer, receives instructions of the single-chip microcomputer and controls on-off of fuel gas; the IC card slot is connected with the output end of the single chip microcomputer and is used for reading IC card gas purchasing data; the upper computer is connected with the single chip microcomputer through a communication module; the single-chip microcomputer receives a gas quantity signal collected by the ultrasonic metering module and deducts the pre-charging gas quantity value of the IC card according to the collected gas quantity, and when the pre-charging gas quantity value is 0, the single-chip microcomputer regulates and controls the electric valve to be closed so as to cut off gas for a user. According to the ultrasonic IC card flowmeter, gas metering and pre-charging control can be achieved, peripheral circuits of the IC card controller can be saved, and the ultrasonic IC card flowmeter is of great significance to structure simplification.

Description

Technical Field

[0001] The utility model relates to the technical field of gas metering equipment, in particular to an ultrasonic IC card flow meter. Background Art

[0002] At present, ultrasonic flowmeters are gradually replacing traditional flowmeters. More and more natural gas companies are beginning to use them to gradually replace traditional flowmeters because of their characteristics of no moving parts, no need for oiling, zero pressure loss, high accuracy, good repeatability, and high long-term stability. When using existing ultrasonic flowmeters, they usually need to be used in conjunction with the peripheral circuit of the IC card controller, which has a complex structure and high cost. Summary of the invention

[0003] In view of the above situation, in order to overcome the defects of the prior art, the purpose of the utility model is to provide an ultrasonic IC card flow meter to solve the problem that the ultrasonic flow meter needs to be used in conjunction with the peripheral circuit of the IC card controller, the structure is complex and the cost is high; the ultrasonic IC card flow meter not only has all the functions of the flow meter, but also has embedded pre-charging and valve control functions, which can realize the metering and pre-charging control of gas, can save the peripheral circuit of the IC card controller, and is of great significance to the simplification of the structure.

[0004] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0005] The ultrasonic IC card flow meter comprises: a single chip microcomputer; an ultrasonic metering module connected to the input end of the single chip microcomputer, used for collecting gas consumption and feeding back the collected data to the single chip microcomputer; an electric valve bidirectionally connected to the single chip microcomputer, used for receiving instructions from the single chip microcomputer and controlling the on and off of gas; an IC card slot connected to the output end of the single chip microcomputer, used for reading IC card gas purchase data; a host computer connected to the single chip microcomputer through a communication module; wherein the single chip microcomputer receives the gas volume signal collected by the ultrasonic metering module, and deducts the pre-charged gas volume value of the IC card according to the collected gas volume, and when the pre-charged gas volume value is 0, the single chip microcomputer controls the electric valve to close to cut off gas to the user.

[0006] The present invention improves and adds IC card control function on the basis of ultrasonic flowmeter, and integrates ultrasonic flowmeter measurement and IC card prepayment function into the same software system by adding valve control drive and IC card slot on the ultrasonic flowmeter circuit, thus eliminating the problem of matching two systems. At the same time, the motor drive circuit and IC card slot of the present invention are designed inside the flowmeter, and the IC card control valve part eliminates the header assembly and control circuit, saving installation space and cost, and realizing the functions of natural gas flow measurement and IC card prepayment control.

[0007] Optionally, the ultrasonic metering module includes an ultrasonic transducer and an A / D converter, the ultrasonic transducer is electrically connected to the A / D converter, and the A / D converter is electrically connected to the single chip microcomputer.

[0008] Optionally, the input end of the communication module is connected to a power supply, an Internet of Things module is electrically connected between the power supply and the wiring of the communication module, and the other end of the Internet of Things module is bidirectionally connected to the single-chip microcomputer.

[0009] Optionally, the output end of the single chip microcomputer is connected to an alarm output module.

[0010] Optionally, the ultrasonic IC card flow meter further includes: a storage module, bidirectionally connected to the single-chip microcomputer, and used for storing ultrasonic IC card flow meter data information and pre-charged gas volume value of the IC card.

[0011] Optionally, the ultrasonic IC card flow meter further includes: a display module electrically connected to the output end of the single chip microcomputer; an alarm module electrically connected to the output end of the single chip microcomputer; and a button module bidirectionally connected to the single chip microcomputer.

[0012] Optionally, the display module uses an LCD display screen, and the alarm module uses a buzzer.

[0013] Compared with the prior art, the present invention has the following beneficial effects:

[0014] The present invention is improved on the basis of ultrasonic flowmeter and adds IC card control function. By adding valve control drive and IC card slot to the ultrasonic flowmeter circuit, the ultrasonic flowmeter metering and IC card prepayment functions are integrated into the same software system, eliminating the problem of matching two systems. At the same time, the motor drive circuit and IC card slot of the present invention are designed inside the flowmeter, and the IC card control valve part omits the header assembly and control circuit, saving installation space and cost, and realizing the functions of natural gas flow metering and IC card prepayment control. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0016] Figure 1 It is a structural schematic diagram of the ultrasonic IC card flowmeter of the present invention. DETAILED DESCRIPTION

[0017] In the following, only some exemplary embodiments are briefly described. As those skilled in the art will appreciate, the described embodiments may be modified in various ways without departing from the spirit or scope of the embodiments of the present invention. Therefore, the drawings and descriptions are considered to be exemplary and non-restrictive in nature.

[0018] In the description of the embodiments of the present utility model application, it needs to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential", "end", "side", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the embodiments of the present utility model application and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the embodiments of the present utility model application.

[0019] In the embodiments of the present utility model application, unless otherwise clearly specified and limited, the terms "install", "connect", "connect", "fix" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, an electrical connection, or a communication; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the embodiments of the present utility model application can be understood according to the specific circumstances.

[0020] In the embodiments of the utility model application, unless otherwise clearly specified and limited, the first feature being "above" or "below" the second feature may include the first and second features being in direct contact, or may include the first and second features not being in direct contact but being in contact through another feature between them. Moreover, the first feature being "above", "above" and "above" the second feature includes the first feature being directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. The first feature being "below", "below" and "below" the second feature includes the first feature being directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0021] The disclosure below provides many different embodiments or examples for realizing different structures of the embodiments of the utility model application. In order to simplify the disclosure of the embodiments of the utility model application, the components and settings of specific examples are described below. Of course, they are only examples, and the purpose is not to limit the embodiments of the utility model application. In addition, the embodiments of the utility model application can repeat reference numbers and / or reference letters in different examples, and this repetition is for the purpose of simplification and clarity, and does not itself indicate the relationship between the various embodiments and / or settings discussed.

[0022] The embodiments of the present utility model are described in detail below with reference to the accompanying drawings.

[0023] like Figure 1 As shown, the embodiment of the utility model application provides an ultrasonic IC card flow meter, including an ultrasonic metering module electrically connected to the input end of the single-chip microcomputer, an IC card slot electrically connected to the output end of the single-chip microcomputer, and a storage module, a communication module, and an electric valve bidirectionally connected to the single-chip microcomputer. When in use, the single-chip microcomputer receives the gas volume signal collected by the ultrasonic metering module, and deducts the pre-charged gas volume value of the IC card according to the gas volume signal. When the pre-charged gas volume value is 0, the single-chip microcomputer controls the electric valve to close to cut off the gas supply to the user.

[0024] Specifically,

[0025] The ultrasonic metering module includes an ultrasonic transducer and an A / D converter. The ultrasonic transducer is connected to the A / D converter, and the A / D converter is connected to the single-chip microcomputer. After collecting the gas consumption, the ultrasonic transducer transmits the collected signal to the A / D converter, and the A / D converter transmits the digital signal converted from the analog signal to the single-chip microcomputer.

[0026] The output end of the single chip microcomputer is electrically connected to the IC card slot and can read the gas purchase value / cost information of the IC card.

[0027] The electric valve is used to receive instructions from the single-chip microcomputer to control the gas ventilation or gas cut-off; the single-chip microcomputer is connected to the host computer through the communication module; specifically, the single-chip microcomputer is bidirectionally connected to the communication module, the communication module is bidirectionally connected to the host computer, and the communication module is also connected to a power supply. The storage module is used to store ultrasonic IC card flow meter data information and IC card pre-charged gas volume value / cost information.

[0028] Optionally, the communication module can adopt 485 communication.

[0029] Optionally, the power supply adopts an external 24V DC power supply.

[0030] Optionally, the output terminal of the single chip microcomputer is electrically connected to an alarm module.

[0031] Optionally, the alarm module uses a buzzer, which is used to receive fault alarm information sent by the single-chip microcomputer and issue an alarm.

[0032] Optionally, the output end of the single chip microcomputer is also electrically connected to a display module.

[0033] Optionally, the display module uses an LCD display screen, and the LCD display screen is used to display the gas consumption, remaining gas amount, fault information, etc. sent by the single-chip microcomputer.

[0034] Optionally, the single chip microcomputer is also bidirectionally connected to a key module.

[0035] Optionally, the single-chip microcomputer is also bidirectionally connected to an Internet of Things module, one end of the Internet of Things module is bidirectionally connected to the single-chip microcomputer, and the other end is connected to the wiring between the power supply and the communication module.

[0036] Optionally, the output end of the single chip microcomputer is also connected to an alarm output module.

[0037] Optionally, the single chip microcomputer, A / D converter, buzzer, button module and storage module are all arranged on the circuit main board; the ultrasonic transducer, electric valve, communication module, Internet of Things module, alarm output module, IC card slot and display screen are all arranged on the peripheral circuit.

[0038] When in use, the ultrasonic IC card flow meter will self-check after powering on. If the user has opened an account and recharged the ultrasonic IC card flow meter, the ultrasonic IC card flow meter will automatically open the valve for the user to use gas when it meets the valve opening conditions. When the gas passes through the ultrasonic IC card flow meter, the ultrasonic metering module will first enter the working state to measure the gas, and then the pre-paid part of the ultrasonic IC card flow meter will enter the working state. According to the accumulated gas volume of the ultrasonic metering module, the IC card prepaid recharge balance in the ultrasonic IC card flow meter will be deducted. When the recharge balance is completely deducted, the ultrasonic IC card flow meter will cut off the user's gas supply by controlling the valve until the user recharges again and the ultrasonic IC card flow meter self-checks and meets the valve opening conditions, then the valve will be opened again to supply gas, realizing the functions of metering, pre-charging and control in one.

[0039] A control method for an ultrasonic IC card flow meter comprises the following steps:

[0040] Step S1, the ultrasonic IC card flow meter performs a self-check after being turned on to determine whether the user has opened an account and recharged the ultrasonic IC card flow meter. If the user has recharged, the electric valve opens to supply gas to the user;

[0041] Step S2: The ultrasonic metering module measures the gas and transmits the collected gas consumption to the single chip microcomputer;

[0042] Step S3, the single chip microcomputer receives the collection signal, and deducts the pre-charged gas volume value in the storage module according to the collected gas volume; when the pre-charged gas volume value is 0, the single chip microcomputer closes the electric valve to cut off the gas supply to the user.

[0043] Parts not described in detail in this embodiment are well-known techniques in the art.

[0044] The above is only a specific implementation of the utility model, but the protection scope of the utility model is not limited thereto. Any technician familiar with the technical field can easily think of various changes or substitutions within the technical scope disclosed by the utility model, which should be included in the protection scope of the utility model. Therefore, the protection scope of the utility model should be based on the protection scope of the claims.

Claims

1. Ultrasonic IC card flow meter, characterized in that, include: Single chip microcomputer; An ultrasonic metering module is connected to the input terminal of the single chip microcomputer, collects the gas consumption, and feeds the collected data back to the single chip microcomputer; The electric valve is bidirectionally connected to the single chip microcomputer, receives instructions from the single chip microcomputer and controls the on and off of the gas; An IC card slot is connected to the output terminal of the single chip computer to read the gas purchase data of the IC card; A host computer, connected to the single chip microcomputer via a communication module; Among them, the single chip microcomputer receives the gas volume signal collected by the ultrasonic metering module, and deducts the pre-charged gas volume value of the IC card according to the collected gas volume. When the pre-charged gas volume value is 0, the single chip microcomputer controls the electric valve to close to cut off the gas to the user.

2. The ultrasonic IC card flow meter according to claim 1, characterized in that: The ultrasonic metering module includes an ultrasonic transducer and an A / D converter. The ultrasonic transducer is electrically connected to the A / D converter, and the A / D converter is electrically connected to the single chip microcomputer.

3. The ultrasonic IC card flow meter according to claim 1, characterized in that: The input end of the communication module is connected to a power supply, an Internet of Things module is electrically connected between the power supply and the wiring of the communication module, and the other end of the Internet of Things module is bidirectionally connected to the single-chip microcomputer.

4. The ultrasonic IC card flow meter according to claim 1, characterized in that: The output end of the single chip microcomputer is connected with an alarm output module.

5. The ultrasonic IC card flow meter according to claim 1, characterized in that: The ultrasonic IC card flow meter also includes: The storage module is bidirectionally connected to the single chip computer and is used to store the ultrasonic IC card flow meter data information and the pre-charged gas volume value of the IC card.

6. The ultrasonic IC card flow meter according to claim 1, characterized in that: The ultrasonic IC card flow meter also includes: A display module, electrically connected to the output terminal of the single chip microcomputer; An alarm module, electrically connected to the output terminal of the single chip microcomputer; The key module is bidirectionally connected to the single chip microcomputer.

7. The ultrasonic IC card flow meter according to claim 6, characterized in that: The display module adopts an LCD display screen, and the alarm module adopts a buzzer.

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