CN2269611Y - IC card computer charging controller for gas meter - Google Patents

Abstract

The utility model relates to an IC card computer charging controller for gas meters, belonging to the field of special charging meters. The controller is composed of a detecting part, a display part, a control part and an operating part; the detecting part is composed of a Hall sensor and a magnetic steel; the display part is composed of a single chip microcomputer and a universal liquid crystal electronic calculator with a large screen; the control portion is composed of an IC card circuit and an alarm circuit; the operating part is composed of a relay J and an operating mechanism. The utility model has the advantages of novel design, simple structure, small size, low price, convenient installation and operation, etc.

Description

Gas meter IC-card charging computer controller

The utility model relates to a kind of special-purpose tariff meter controller, specifically is a kind of gas meter IC-card charging computer controller that adopts the control of superminiature one-chip computer.

For a long time, the charge of the coal gas in city is that workload is big with management always, the work that difficulty is more.At the problems referred to above, the someone adopts magnetic card gas meter and IC-card gas meter to realize prepaid and charge automatically, but these apparatus structure complexity, and cost is higher, installs and uses and difficult in maintenance.More unacceptable is that if this class table is installed, need are eliminated present a large amount of old table just in use, cause serious waste.

The purpose of this utility model is to overcome the deficiency of prior art, and a kind of modern design is provided, and simple in structure, volume is small and exquisite, and is cheap, gas meter IC-card charging computer controller easy to install.

The utility model is achieved in that this controller is for to be made up of test section, control section and operating part.The test section is made of display part, IC-card circuit and the warning circuit that single-chip microprocessor, general large-screen lc electronic calculator constitute.Operating part is made of relay J and topworks.

In testing circuit, the H of Hall element 7 ₁And H ₂Output terminal pass through not gate N respectively ₁And N ₂With single-chip microcomputer IC ₁P ₃₀And P ₃₁Mouth links to each other, Hall element H ₃Output terminal and P ₃₄(T _o) mouthful link to each other.

IC in the control section ₁The P of single-chip microprocessor _11-13Mouth passes through IC respectively ₂With IC ₃The analog switch control end links to each other, and its switch links to each other with counter " 1 ", "+" and "=" key respectively.IC ₁P _14-17The mouth respectively with IC ₄E ²The SK of PROM, CS, DI and DO end link to each other IC ₄Adopt Serial E ²PROM stores data.IC ₁P ₃₂The driving circuit that connects alarming horn SP, P ₃₃The driving circuit that connects the executive component relay.Display adopts general large-screen lc electronic calculator, and interface circuit adopts not gate and analog switch to drive, and is that radix adds up with " 1 ", 0.001 cube of coal gas of unit " 1 " expression.

Topworks is by its power end and the motor 1 that executive component relay J Chang Kaiduan links to each other, and is loaded on the driving gear 2 on 1 on the motor, with the engaged wheel 3 that driving gear 2 links to each other with the ball valve axle, is loaded on being used for and Hall element H of engaged wheel 3 lower edge ₁And H ₂Constitute the permanent-magnet steel 6 of the Zhuang brocade detection piece of ball valve switch respectively, place the magnet valve core 5 of ball valve body 4 to form.

Adopt the gas meter IC-card charging computer controller of said structure, be serially connected with in the air inlet or gas exhaust duct of existing gas meter, the existing mechanical table can be upgraded to IC-card charging computer gas meter.

Below in conjunction with the accompanying drawing illustrated embodiment, the utility model is elaborated:

Fig. 1 is an electrical schematic diagram of the present utility model.

Fig. 2 is topworks's synoptic diagram.

Fig. 3 is the setting position synoptic diagram of ball valve core 5 in the topworks.

Sequence number 8 is a Hall element among the figure, and sequence number 7 is a power lead.

The utility model is made up of test section, control section and operating part.

1. test section: detected by the flow detection and the ball valve position of the switch and to form, the two is by Hall element and permanent-magnet steel composition.

2. control section consists of the following components:

(1) microprocessor part: by low-power consumption, low-voltage and include E ²The high-performance one chip microcomputer of PROM and peripheral circuit are formed.

(2) display part: form by giant-screen universal electric counter liquid crystal display piece and integrated circuit (IC) chip thereof and with the interface circuit of one chip microcomputer.

(3) IC-card and relevant peripheral circuit.

(4) warning circuit and executive component driving circuit.

3. operating part: operating part is made of relay J and topworks.As Fig. 2, shown in Figure 3.

In Fig. 1, Fig. 2 and embodiment shown in Figure 3, main circuit of the present utility model constitute and connection features as follows:

In circuit diagram shown in Figure 1, H ₁And H ₂Be Hall element, constitute valve and open and close the position detection that not gate N is passed through in its output respectively ₁And N ₂With IC ₁The P of AT89C1051 ₃₀And P ₃₁Mouth links to each other.H ₃Also be Hall element, with R ₃And C ₁Constitute the gas flow signal deteching circuit, with IC ₁P ₃₄(To) mouth links to each other.One chip microcomputer IC ₁P ₁₁-13 mouthfuls are passed through not gate IC respectively ₂With IC ₃The analog switch control end links to each other, and its switch links to each other with electronic calculator " 1 ", "+" and "=" key respectively.IC ₁P _14-17The mouth respectively with IC ₄Serial E ²The SK of PROM, CS, DI and DO end link to each other.IC ₁P ₃₂Mouth connects the driving circuit of alarming horn.P ₃₃Mouth connects the driving circuit of executive component relay J.The utility model software adopts the establishment of ECS51 machine language, and solidifies in single chip microcomputer.

Display adopts the large-screen lc electronic calculator, and interface circuit adopts not gate and four analog switches to drive, and is that radix adds up with " 1 ", 0.001 cube of coal gas of unit " 1 " expression.

IC ₄Adopt Serial E ²PROM stores data, E ²PROM adopts AT93LC46, is provided with work monitoring circuit R ₉And LED3, dial slotting holding circuit T ₃, R ₁₀

In Fig. 2 and topworks's synoptic diagram shown in Figure 3, relay J Chang Kaiduan links to each other with the power end of motor 1, on 1 on the motor driving gear 2 is housed, and links to each other with the ball valve axle by follower gear 3.The lower edge of follower gear 3 is equipped with permanent-magnet steel 6, constitutes ball valve position of the switch detection part with Hall element 7.Wherein Hall element 7 adopts UGN3030 switching mode sensor, and motor adopts miniature miniwatt slow-speed of revolution permanent magnet motor.

Adopt Hall element 7 with the flow detection interface of mechanical gas meter, fixing permanent-magnet steel on the gas meter transmission gear, magnet steel rotates with gear, and Hall element 7 can detect flow signal.

Principle of work of the present utility model is as follows:

When expense is paid 1 cube of coal gas inadequately in gas meter does not insert IC-card or blocks, under Single-chip Controlling, close the air feed ball valve.When being inserted with the IC-card of enough expenses, ball valve is opened.When coal gas passed through table, the table middle gear promptly rotated, and drove the magnet steel rotation, made Hall element export a series of pulses, and pulse signal is from IC ₁P ₃₄Mouthful input, this mouth be a Timer, works in the counter mode, paired pulses is counted, pass through the computing correction of necessity after, give electronic calculator with the precision of 0.001 cube of coal gas and add up and show.

IC ₄For electricity is wiped the serial programmable read-write memory, wherein be placed with the prepaid remaining sum numeral of some in advance, under Single-chip Controlling, remove the reduction of income expense amount of money with 1 cube of coal gas remaining sum, when the remaining certain limit amount of money, provide the chimes of doom light signal, remind the user to buy neocaine.When prepaid was less than 1 cube of coal gas remaining sum, ball valve was closed automatically, stops air feed.

The utlity model has following advantage:

1. this device adopts Hall element as flow signal and control detection part, and circuit is simple, reliable operation, and antijamming capability is strong.

2. the single chip microcomputer of this device employing is the high-performance CMOS 8-bit microprocessor that includes flash electric erasable read only storer able to programme, and volume is little, little power consumption, and price is low.

3. this device, display adopts giant-screen, and low-cost general liquid shows electronic calculator, and character display is big and clear, has greatly reduced cost, simplifies the structure, and is easy to utilize.

4. this device execution unit adopts miniature miniwatt slow-speed of revolution permagnetic synchronous motor, and gear train adopts gear drive, drives the ball valve rotation, finishes gas flow control, and volume is small and exquisite, and power consumption is extremely low, and reliable operation is with low cost, uses easy to maintenance.

5. this device is an individual components, installs and uses easy to maintenancely, does not change raw coal gas meter primary structure, does not influence the rough gas meter accuracy.Any gas meter has just constituted automatic charge gas meter as long as increase this device, and is easy to utilize.

Claims (4)

1. a gas meter IC-card charging computer controller is characterized in that this controller is for to be made up of test section, control section and operating part; The test section is made of Hall element 10 and magnet steel, and control section is made of display part, IC-card circuit and the warning circuit that single-chip microprocessor, general large-screen lc electronic calculator constitute, and operating part is made of relay J and topworks.

2. by the described gas meter IC-card of claim 1 charging computer controller, it is characterized in that in the testing circuit of test section Hall element H ₁And H ₂Output pass through not gate N respectively ₁And N ₂With single-chip microcomputer IC ₁P ₃₀And P ₃₁Mouth links to each other, Hall element H ₃Output terminal and P ₃₄(T _o) mouthful link to each other.

3. by the said gas meter IC-card of claim 2 charging computer controller, it is characterized in that IC in the control section ₁The P of single-chip microprocessor _11～13Mouth passes through IC respectively ₂With IC ₃The analog switch control end links to each other, and its switch terminals links to each other IC with counter " 1 ", "+" and "=" key respectively ₁P _14～17Respectively with IC ₄E ²The SK of PROM, CS, DI and DO end link to each other IC ₄Adopt Serial E ²PROMIC stores data; IC ₁P ₃₂Connect the driving circuit of alarming horn, P with SP ₃₃The driving circuit that connects the executive component relay; Display adopts general large-screen lc electronic calculator, and interface circuit adopts not gate and analog switch to drive, and is that radix adds up with " 1 ", 0.001 cube of coal gas of unit " 1 " expression.

4. by the said gas meter IC-card of claim 3 charging computer controller, it is characterized in that the motor 1 that the topworks of operating part is linked to each other with executive component relay J Chang Kaiduan by its power end, be loaded on the driving gear 2 on 1 on the motor, with the engaged wheel 3 that driving gear 2 links to each other with the ball valve axle, be loaded on being used for and Hall element H of engaged wheel 3 lower edge ₁And H ₂Constitute the permanent-magnet steel 6 of ball valve position of the switch detection piece respectively, place the magnet valve core 5 of ball valve body 4 to form.

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