CN2264939Y - IC card computer charging water-meter controller - Google Patents

Abstract

The utility model relates to a controller for IC card computer charging water meters, belonging to the field of special charging meters. The controller is composed of a detection part, a display part, a control part and an operating part; the detection part is composed of a detection circuit 1 and a flow detecting device; the display part is composed of a single chip microcomputer and the peripheral circuit 2 thereof, an IC card part 3, a universal large-screen liquid crystal electronic calculator and the drive circuit thereof; the control part is composed of an alarm circuit and an operating element drive circuit; the operating part is composed of an operating element 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

IC-card charging computer water meter controller

The utility model relates to a kind of IC-card charging computer water meter controller, belongs to special-purpose tariff meter field.

In the prior art, existing IC-card ammeter and the gas meter of adopting collected the electricity charge and gas charge automatically.Have report to adopt the magnetic card water meter, but can not charge automatically, the user Running-water Company that need hold pays.These device structure complexity, install, use, safeguard all difficulties, and cost is higher, and every price is up to 500～1500 yuan, and the client is difficult to accept, more seriously, if this class table is installed, will eliminate present several hundred million stem-winders just in use, the waste of tens billion of units will be caused in the whole nation, the expense that new table is installed will be up to hundreds billion of units, so be difficult to apply.

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, IC-card charging computer water meter controller easy to install.

The utility model is achieved in that the test section of this controller for being made of testing circuit 1 and flow detector; The control section that display part 4, warning circuit and the executive component driving circuit of being made up of single-chip microprocessor and peripheral circuit 2, IC-card and peripheral circuit 3, general large-screen lc electronic calculator and driving circuit thereof 5 constitutes; Form by the operating part that executive component relay J and topworks constitute.

In the testing circuit 1 of test section, the H of Hall element 7 ₁And H ₂Output terminal pass through not gate N respectively ₁And N ₂With single-chip microprocessor 2 (AT89C1051) P30 and P31) mouthful link to each other.Flow detector is that 6 Hall elements of giving prominence on the positions 7 are encircled in the additional aluminum garden that is installed in the water gage glass outside surface.

IC in the control section ₁The P of single-chip microprocessor 2 _11-13Mouth passes through not gate IC respectively ₂With IC ₃The analog switch control end links to each other.Its switch links to each other IC with counter " 1 ", "+" and "=" key respectively ₁P _14-17The mouth respectively with IC ₄The SK of Serial E 2PROM, CS, DI and DO end link to each other.IC ₁P ₃₇Mouth and T ₃Base stage links to each other, P ₃₂Connect executive component relay J and driving circuit.P ₃₃Connect alarm loudspeaker SP driving circuit.IC ₄Adopt Serial E ²PROM stores data, is provided with work monitoring circuit R ₉And LED ₃, dial slotting holding circuit T ₃And R ₁₀Display 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 water of unit " 1 " expression.

The motor 10 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 11 on 10 on the motor, the engaged wheel 12 that links to each other with the ball valve axle with driving gear 11, be loaded on the permanent-magnet steel 13 that is used for constituting ball valve switch detection piece of engaged wheel 12 lower edge, place the magnet valve core 9 of ball valve body 8 to form with Hall element 7.

With the IC-card charging computer water meter controller of said structure, be serially connected with in the front or rear pipe system of existing water meter, the existing mechanical table can be upgraded to the automatic prepay water meter of IC-card.

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 flow detection parts structural representations.

Fig. 3 is topworks's synoptic diagram.

Fig. 4 is topworks's synoptic diagram.

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

1. the test section is made up of testing circuit 1 and flow detector.

2. control section consists of the following components:

(1) the microprocessor part 2: 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 4: reached with the interface circuit of one chip microcomputer by giant-screen universal electric counter liquid crystal display piece and integrated circuit (IC) chip thereof and form.

(3) IC-card and peripheral circuit 3.

(4) warning circuit and executive component driving circuit 5.

3. operating part: operating part is made up of executive component relay J and topworks.

Main circuit formation of the present utility model and connection features are 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 ₂Link to each other with the P31 mouth with single chip computer AT 89C1051P30.H ₃Also be Hall element, with R ₃And C ₁Constitute the flow signal testing circuit, with AT89C1051T _oLink to each other.

IC ₁The P of single chip microcomputer 2 _11-13Mouth passes 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 ₃₇Mouth and T ₃Base stage links to each other.P ₃₃Connect executive component relay J and driving circuit.P ₃₂Connect alarming horn SP driving circuit.The utility model software adopts the establishment of MCS51 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 water of unit " 1 " expression.

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

In topworks, the relay normally open end links to each other with the power end of motor 10, and driving gear 11 is housed on the motor reel, links to each other with the ball valve axle by follower gear 12.Follower gear 12 lower edge are equipped with permanent-magnet steel 13, constitute the valve switch position detection component with Hall switch IC.

Adopt Hall element 7 with the interface of mechanical water meter, at the minimum metering of water meter pointer (* 0.0001M ³) on, fix a permanent-magnet steel, magnet steel rotates with pointer, above watch crystal, aluminum garden ring 6 is installed, and at the outshot of aluminum garden ring 6, fixes a Hall element 7, and Hall element is aimed at the magnet steel on the pointer.

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

No time-consuming in water meter does not insert IC-card or blocks, under Single-chip Controlling, close the water supply ball valve.When the IC-card of the expense of being inserted with, ball valve is opened.When water flows through water meter, the rotation of water slug impeller, driven gear group and pointer rotate, and the pointer of magnet steel is housed, and whenever circle to make pulse of Hall element output, represent 1 liters of water.This pulse signal is from IC ₁Single chip microcomputer P ₃₄Mouthful input, this mouth be a Timer, works in the counter mode, paired pulses is counted, and passes through after the computing correction of necessity to give electronic calculator with the precision of 0.001 cube of water and add up and show.

IC ₄For electricity is wiped the serial programmable read-write memory, wherein be placed with the prepaid amount of money numeral of certain number in advance, under Single-chip Controlling, remove the reduction of income expense amount of money with 1 cube of water amount of money, when the remaining certain limit amount of money, provide the chimes of doom light signal, remind the user to buy neocaine.When prepaid is less than 1 cube of water amount of money, relay work, motor rotates, and ball valve is closed, and stops to supply water.

The utility model is an autonomous device, is used with original water gauge, and is easy to install and use, do not change the basic structure of original water gauge, time spent only needs this device serial connection is gone in the pipeline before or after the water meter, the water meter loam cake is outwarded winding, with the minimum pointer (X0.0001M that measures of former table ³) take out, change the dedicated pointer that has magnet steel, the aluminium garden ring that will have Hall element again is placed on the water gage glass face, makes the sensor alignment magnet steel, screws on loam cake and promptly installs.

Among the utility model embodiment, Hall element adopts switching mode sensors such as UGN3030, IC ₁Adopt most advanced single chip microcomputer AT89C1051 of U.S.'s the mid-90, IC-card adopts AT93LC46 (E ²PROM), electronic calculator adopts general large-screen lc display type, and motor adopts miniature miniwatt slow-speed of revolution permanent magnet motor, according to the size decision power of motor and the transmission gear parameter of by-pass valve control.

The utility model has following characteristics:

1. this device adopts Hall element as signal and control test section, and circuit is simple, reliable operation, Antijamming capability is strong.

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

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

4. this device execution unit adopts miniature small-power slow-speed of revolution permagnetic synchronous motor, and transmission mechanism adopts gear Transmission drives the ball valve rotation, finishes the control to current, and volume is small and exquisite, and power consumption is extremely low, and is with low cost, uses Easy to maintenance.

5. this device is an individual components, installs and uses easy to maintenancely, does not change the water meter primary structure, not shadow Ring former meter accuracy. Any water meter has just consisted of the automatic charging water meter as long as increase this device, and is easy to utilize.

Claims (4)

1. an IC-card charging computer water meter controller is characterized in that the test section of this controller for being made of testing circuit 1 and flow detector; The control section that display part 4, warning circuit and the executive component driving circuit of being made up of single-chip microprocessor and peripheral circuit 2, IC-card and peripheral circuit 3, general large-screen lc electronic calculator and driving circuit thereof 5 constitutes; Form by the operating part that executive component relay J and topworks constitute.

2. by the said IC-card charging computer of claim 1 water meter controller, it is characterized in that in the testing circuit 1 of test section the H of Hall element 7 ₁And H ₂Output terminal pass through not gate N respectively ₁And N ₂P30 links to each other with the P31 mouth with single-chip microprocessor 2 (AT89C1051); Flow detector is that 6 Hall elements of giving prominence on the positions 7 are encircled in the additional aluminum garden that is installed in the water gage glass outside surface.

3. by the said IC-card charging computer of claim 2 water meter controller, it is characterized in that IC in the control section ₁The P of single-chip microprocessor 2 _11-13Mouth passes through not gate IC respectively ₂With IC ₃The analog switch control end links to each other; Its switch links to each other IC with counter " 1 ", "+" and "=" key respectively ₁P _14-17The mouth respectively with IC ₄Serial E ²The SK of PROM, CS, DI and DO end link to each other; IC ₁P ₃₇Mouth and T ₃Base stage links to each other, P ₃₂Connect executive component relay J and driving circuit; P ₃₃Connect alarm loudspeaker SP driving circuit; IC ₄Adopt Serial E ²PROM stores data, is provided with work monitoring circuit R ₉And LED ₃, dial slotting holding circuit T ₃And R ₁₀Display adopts the large-screen lc electronic calculator, and interface circuit adopts not gate and four analog switches to drive, with. " 1 " is that radix adds up, 0.001 cube of water of unit " 1 " expression.

4. by the said IC-card charging computer of claim 3 water meter controller, it is characterized in that the motor 10 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 11 on 10 on the motor, the engaged wheel 12 that links to each other with the ball valve axle with driving gear 11, be loaded on the permanent-magnet steel 13 that is used for constituting ball valve switch detection piece of engaged wheel 12 lower edge, place the magnet valve core 9 of ball valve body 8 to form with Hall element 7.

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