CN2262234Y

CN2262234Y - Card type intelligent water meter

Info

Publication number: CN2262234Y
Application number: CN 96209845
Authority: CN
Inventors: 齐成先
Original assignee: Individual
Current assignee: Individual
Priority date: 1996-05-07
Filing date: 1996-05-07
Publication date: 1997-09-10
Anticipated expiration: 2006-05-07

Abstract

The card type intelligent water meter consists of a shell and an electrical component, wherein the electrical component comprises a main control circuit A, a card reading circuit B, a prompting circuit C, a signal acquisition circuit E, a display circuit F and an execution circuit H; the card reading circuit B respectively transmits the water quantity signal and the water consumption signal acquired by the signal acquisition circuit E to the main control circuit A for comparison, and the main control circuit A instructs the display circuit F, the prompt circuit C and the execution circuit H to work; the water meter has a simple structure, is convenient to use, saves manual meter checking and charging, brings great convenience to management, and can bring considerable economic benefits to a water supply part because cards are purchased and water is used; the meter can also be used for gas metering.

Description

The cassette intellectual water meter

The utility model relates to a kind of water meter that writes down the water yield, particularly cassette intellectual water meter.

Water meter used in everyday generally is mechanical, drives water meter machinery by the water yield of passing through and measures, and show on dial plate, is looked meter and charge from house to house by the personnel of tabling look-up, and is time-consuming bothersome, and easily is in arrears with and pays dues, and all makes troubles for charge person or resident.

The utility model purpose provides a kind of cassette intellectual water meter, buys water card (IC-card) by the resident to management of the use of water department, and this card is inserted in the water meter, can press the actual used water amount automatically and calculate, and need not look meter and charge, and avoids being in arrears with and pays dues, and has improved management level.

The utility model is realized by following technical scheme, this cassette intellectual water meter is made up of shell and the electric component that is mounted in it, and electric component comprises governor circuit A, Card Reader circuit B, cue circuit C, signal acquisition circuit E, display circuit F, executive circuit H; Be illustrated in figure 2 as electrical block diagram, governor circuit A is a central processing unit, for whole water meter provides working routine and acceptance and sends each signal, Card Reader circuit B reads this water yield volume according to the water card of buying, and signal is input among the governor circuit A, H opens valve supply water by circuit A instruction execution circuit, by signal acquisition circuit E the water yield signal of using up is input among the governor circuit A, by circuit A with circuit B, the E signal relatively, and instruction display circuit F is shown the remaining sum water yield, when remaining sum when using up, send the prompting warning by circuit A command prompt circuit C, remind the user to buy the water card, when the water yield used up, circuit A instructed this executive circuit H that feed water valve is closed to stop to supply water.In order to prevent environmental interference, between governor circuit A and Card Reader circuit B, anti-jamming circuit D is housed.Function that this electric part is all and action are realized according to program software by hardware.

Specifically introduce to implement side below.

Fig. 1 is the utility model cassette intellectual water meter synoptic diagram;

Fig. 2 is the utility model cassette intellectual water meter electrical block diagram;

Fig. 3 is the utility model cassette intellectual water meter electrical schematic diagram.

Code name among the figure:

B transformer C1 is to C10 electric capacity D rectifier bridge E1 battery 4AH D1, D5, D7 light emitting diode D2, D3, D4, D6 diode IN4001 DF self-insurance energy-saving electromagnetic valve R1 to R12 resistance R L1, RL2 midget relay Q crystal oscillator 12MHZ U1, U2 coding chip 74HC164 U3 chip for driving MC1413 U4 voltage stabilizer MC7808 U5 single-chip microcomputer 89C2051U6 can wipe the anti-interference chip DS1232 of storage chip 93C46 U7 U8 four-operational amplifier LM358 U9 chip for driving 75451 U10 charactrons

As shown in Figure 1, this cassette intellectual water meter 1 is contained in water supply line 4 porch, on the shell 2 of water meter 1, have the charactron of demonstration U10, power light D7, relay indicating light D1, alarm lamp D5, also has the socket 3 water card that is used for packing into, water supply electromagnetic valve DF is contained on this pipeline 4, and electric component is contained in the shell 2.As shown in Figure 3, governor circuit A comprises single-chip microcomputer U5; Its end points 20 connects operating voltage, end points 10 ground connection; End points P1.0, P1.1, P1.2 meet Card Reader circuit B, and

end points

4,5 is through crystal oscillator Q, capacitor C 9, C10 ground connection; End points To meets signal acquisition circuit E; End points P1.4, P1.5 meet cue circuit C; End points P1.6, P1.7 meet executive circuit H; End points P3.0, P3.1 meet display circuit F.Card Reader circuit B comprises can wipe storage chip U6, and the end points 8 of U6 meets operating voltage+5V, end points P1.0, P1.1, the P1.2 of U5 among end points 1,2, the 3 connection circuit A, end points 5 ground connection.Cue circuit C comprises diode D1, D4, D5 capacitor C 8, resistance R 9, R11, R12, hummer YZ, diode D1 one termination+5V, the end points P1.4 of other end U5 in resistance R 11 connection circuit A; Termination operating voltage+the 5V of diode connected in parallel D5 and hummer YZ, the end points P1.5 of U5 among the equal connection circuit A of the other end.C8 in parallel with hummer YZ and D4 are used to filter frequency and improve sound.Signal acquisition circuit E comprises four-operational amplifier U8, resistance R 1 is to R7, capacitor C 5, C6, C7, the contact To of U5 among the end points 1 connection circuit A of this four-operational amplifier U8,

end points

3,2,8 connects a, b, f contact respectively through capacitor C 5, C6, resistance R 1, and end points 8 connects operating voltage.Display circuit F comprises coding chip U1, U2, chip for driving U3 and charactron U10, the end points 8 of coding chip U1, U2 all links to each other with the end points P3.1 of single-chip microcomputer U5 among the circuit A, end points 1,2 on U1, the U2 all links to each other with the end points P3.0 of single-chip microcomputer U5 among the circuit A, and the

end points

5,6,10,11,12,13 of coding chip U2 links to each other with the

end points

6,5,4,3,2,1 of chip for driving U3 respectively., the end points 3 to 12 of coding chip U1 connects charactron U10 (totally six s') end points 1 to 7 respectively, and the end points 9 and 10 that the end points 16 of chip for driving U3 connects charactron (totally six) respectively shows to control its numeral.Executive circuit H comprises chip for driving U9, relay R L1, RL2, solenoid valve DF, end points 18 and the end points 19 of single-chip microcomputer U5 among the end points 1,2 of chip for driving U9 and end points 6, the 7 difference connection circuit A, relay R L1, RL2 one end connect the

end points

3,5 of chip for driving U9 respectively, the other end connects operating voltage respectively, and its contact J1, J2 meet two end points e, the d of solenoid valve DF respectively.Between governor circuit A and Card Reader circuit B, anti-jamming circuit D is housed, it comprises anti-interference chip U7, storage chip U6 end points 5 among end points 3, the 4 equal connection circuit B of this chip U7, end points RES, the P1.3 of single-chip microcomputer U5 among end points 5, the 7 difference connection circuit A,

end points

2,8 all connects operating voltage.Power circuit G is used for guaranteeing the normal power supply of this water meter, power supply during for battery charge and outage; Civil power is through transformer B1 step-down, rectifier bridge D rectification, voltage stabilizer U4, capacitor C 1 behind the voltage regulation filtering of C4, output direct-current working volts+5V and+6V is for each circuit application, and gives battery E1 charging, when outage, E1 provides operating voltage by battery.

Before the work, water meter is in the plug-in card state of waiting for, by power circuit G power supply, power light D7 is bright.During work, insert the water card in circuit B, promptly storage chip U6 promptly goes to disappear after signal is read on the card, and this signal is input to the P1.0 of U5 among the circuit A, P1.1, P1.2 end points; It is the o signal that U5 sends P1.4, and portable lamp D1 is bright among the circuit C; U5 sends out the P1.6 signal, and relay R L2 and contact J2 are connected, and solenoid valve DF connects the water supply water route; Send out the P1.6 signal again to circuit H, RL2 and contact J2 are disconnected, DF still keeps connecting with energy-conservation; U5 sends out P3.0, and the P3.1 signal is delivered to demonstration charactron U10 by U1 to U3 to circuit F, shows and purchases the water yield; During water supply, import the water signal into through node a, the b of circuit E, f (or by flow sensor through node a, b), amplify the end points To that delivers to U5, calculate water consumption and show through U8 by the photoelectrical coupler (not shown); When surplus water reached alarming value, U5 sent out the P1.5 signal to circuit C, and+5V voltage makes hummer YZ and diode D5 purchase card with sound and bright warning reminding user; When the water yield used up, it was 1 signal that U5 sends P1.7, and RL1 among the circuit H, contact J1 are connected, and DF is closed, and sends out the P1.7 signal again RL1, J1 are disconnected, and DF still keeps closing with energy-conservation; Turn-off in the water route of supplying water this moment, and U5 sends the P1.4 signal, and the D1 lamp goes out.When inserting neocaine again, then press above-mentioned circulation task again.

In sum, the utility model cassette intellectual water meter is owing to adopt governor circuit, signal collection circuit, Card Reader circuit, display circuit, surplus water is come into plain view, adopt cue circuit, can remind the user to purchase card in advance, power circuit has the uninterrupted power supply function, the time guarantees that in outage memory information do not lose; And easy to use, plug-in card is work just, saves manually to look meter and charge, and gives in the management to bring great convenience, owing to be the back water of paying dues earlier, avoided paying dues and be in arrears with, and also can bring considerable economic to water supply department.

This water meter also can be used for gas dosing and uses.

Claims

1, the cassette intellectual water meter is made up of shell and the electric component that is mounted in it, and it is characterized in that: electric component comprises governor circuit (A), Card Reader circuit (B), cue circuit (C), signal acquisition circuit (E), display circuit (F), executive circuit (H); Pass to governor circuit (A) respectively and compared with water yield signal with by signal acquisition circuit (E) water yield signal of will using up by Card Reader circuit (B), work by governor circuit (A) instruction display circuit (F), cue circuit (C) and executive circuit (H).

2, cassette intellectual water meter according to claim 1 is characterized in that: governor circuit (A) comprises single-chip microcomputer (U5); Its end points (20) connects operating voltage, end points (10) ground connection; End points (P1.0), (P1.1), (P1.2) connect Card Reader circuit (B), and end points (4), (5) are through crystal oscillator (Q), electric capacity (C9), (C10) ground connection; End points (To) connects signal acquisition circuit (E); End points (P1.4, P1.5) connects cue circuit (C); End points (P1.6, P1.7) connects executive circuit (H); End points (P3.0, P3.1) connects display circuit (F).

3, cassette intellectual water meter according to claim 1, it is characterized in that: Card Reader circuit (B) comprises can wipe storage chip (U6), (U6) end points (8) meets operating voltage+5V, the end points of (U5) (P1.0, P1.1, P1.2) in end points (1,2, the 3) connection circuits (A), end points (5) ground connection.

4, cassette intellectual water meter according to claim 1, it is characterized in that: cue circuit (C) comprises diode (D1, D4, D5), electric capacity (C8), resistance (R9, R11, R12), hummer (YZ), diode (D1) one termination+5V voltage, the end points (P1.4) of other end U5 in resistance (R11) connection circuit (A); One termination operating voltage+5V of diode connected in parallel (D5) and hummer (YZ), the end points (P1.5) of (U5) in the equal connection circuit of the other end (A).

5, cassette intellectual water meter according to claim 1, it is characterized in that: signal acquisition circuit (E) comprises four-operational amplifier (U8), resistance (R1) is to (R7), electric capacity (C5, C6, C7), the contact (To) of (U5) in end points (1) connection circuit (A) of this four-operational amplifier (U8), end points (3,2,8) is through electric capacity (C5, C6)), resistance R 1 connects (a, b, f) contact respectively, end points (8) connects operating voltage.

6, cassette intellectual water meter according to claim 1, it is characterized in that: display circuit (F) comprises coding chip (U1, U2), chip for driving (U3) and charactron (U10), coding chip (U1, U2) end points (8) all links to each other with the end points (P3.1) of single-chip microcomputer (U5) in the circuit (A), (U1, U2) end points (1 on, 2) all link to each other with the end points (P3.0) of single-chip microcomputer (U5) in the circuit (A), the end points (5 of coding chip (U2), 6,10,11,12,13) respectively with the end points (6 of chip for driving (U3), 5,4,3,2,1) links to each other, the end points 3 to 12 of coding chip (U1) connects the end points (1) of charactron (U10) respectively to (7), and the end points (16) of chip for driving (U3) connects end points (9) and (10) of charactron respectively.

7, cassette intellectual water meter according to claim 1 is characterized in that: executive circuit (H) comprises chip for driving (U9), relay (RL1, RL2), solenoid valve (DF); End points of chip for driving (U9) (1,2) and end points (6,7) be the end points (18) and the end points (19) of the middle single-chip microcomputer (U5) of connection circuit (A) respectively, relay (RL1), (RL2) end connect end points (3), (5) of chip for driving (U9) respectively, the other end connects operating voltage respectively, and its contact (J1), (J2) connect two end points (e, d) of solenoid valve (DF) respectively.

8, cassette intellectual water meter according to claim 1, it is characterized in that: between governor circuit (A) and Card Reader circuit (B), anti-jamming circuit (D) is housed, it comprises anti-interference chip (U7), the end points of this chip (U7) (3,4) is middle storage chip (U6) end points (5) of connection circuit (B) all, end points (5,7) is the end points (RES, P1.3) of the middle single-chip microcomputer (U5) of connection circuit (A) respectively, and end points (2,8) all connects operating voltage.