CN2349544Y

CN2349544Y - IC card intelligent water meter

Info

Publication number: CN2349544Y
Application number: CN 98233233
Authority: CN
Inventors: 秦鹰; 都晓光
Original assignee: Individual
Current assignee: Individual
Priority date: 1998-12-10
Filing date: 1998-12-10
Publication date: 1999-11-17
Anticipated expiration: 2008-12-10

Abstract

The utility model discloses an IC card intelligent water meter, belonging to a metering tool for metering and industrial domestic water consumption. The utility model is characterized in that a magnet which supplies sampled signals for an IC card, a flow sensor and an intelligent microcomputer controller are arranged in a water meter; the water inlet of the water meter is connected with a brass ball valve through a gearbox and a travel switch, and the water inlet can be opened and closed by a motor which is controlled by the microcomputer controller under the action of the IC card. The utility model can realize prepayment before water consumption, and water can be consumed only by plugging-in the IC card which is bought beforehand. The utility model cancels the labor intensity of reading meters, and accordingly, a large quantity of labour costs can be saved.

Description

The IC-card intellectual water meter

The utility model relates to a kind of water meter, relates in particular to a kind of IC-card intellectual water meter, belongs to industry and daily life water metering device.

Water meter is a kind of measurement mechanism of tolerance industry and daily life water, traditional water meter is made up of shell, impeller metering driving mechanism and gear reducer mechanism, behind the valve opening, water inflow water meter is cut the hole along row under the impeller box and is entered impeller box, promoting impeller rotates and flows out along last round, wheel rotation is through the reduction gearing transmission, and the meter of indicating mechanism promptly writes down out the volume total amount of the water of the water supply pipe of flowing through.This mechanism formula water meter, it is big to observe the water metering error, its maximum shortcoming can only adopt the behindhand type of paying after the first water, be that Running-water Company must go to copy from house to house water meter and charge with a large amount of manpower and materials, labour intensity is big, the water supply project investment is long return period, and is extremely inconvenient to user management.

The purpose of this utility model just is to provide a kind of have intelligent domestic and industrial water meter, making the user must hold IC-card before water can water, having reached the effect that makes water behind the post-pay paystation, is a kind of IC-card intellectual water meter that common water meter and microcomputer controller constitute.

For achieving the above object, the utility model can be realized by following scheme: comprise the mechanical type water meter, the water yield that the water meter mechanical rotation is measured is converted into electric signal by magnet and flow sensor through the flow sensor signal line, this electric signal is handled by the water yield of LCDs demonstration with water meter equivalent through microcomputer controller, described magnet is arranged on the gear of water meter, flow sensor is located at the below of magnet, the water meter pedestal is provided with housing, the housing internal fixation is provided with the IC-card circuit board, the IC-card control box, IC-card deck and power supply, hummer, LCDs is housed above the housing, the front is provided with card inserting mouth, and interconnect by each insert row line, the water inlet of water meter is connected with the copper ball valve, and the copper ball valve passes through wheel box, travel switch is opened and closed by IC-card control motor.Current drive water meter turbine and rotate, by the 0.001m of speed reduction unit ³Gear rotation and the magnet that drives this gear edge rotate synchronously, drive flow sensor and send 0.01m ³Sampled signal is by microcomputer controller IC ₁The computing of successively decreasing has realized LCDs and mechanical counter of water meter synchronous measurement.

The utility model has the advantages that: have the intelligence effect, buy IC-card prepayment water rate, can water by plug-in card, on water meter, be provided with the microcomputer controller circuit, have the water of purchase prompt facility before water rate uses up, Running-water Company, can save a large amount of labour costs, alleviated labour intensity, shortened investment return period, water supply administrative authority has been realized that modern management provides solid material technological foundation.

The drawing explanation:

Accompanying drawing 1 is the utility model one-piece construction synoptic diagram;

Accompanying drawing 2 is power supply reason figure of IC-card circuit board (9) in the utility model accompanying drawing 1.

Now the utility model is described in further details in conjunction with a specific embodiment:

Be provided with magnet (18) and the flow sensor (17) of supplying with the IC-card sampled signal on the gear (2) of water meter (1), flow sensor (17) and magnet (18) are that current drive water meter (1) wheel rotation, by the 0.001m of speed reduction unit ³Gear (2) rotates and drives magnet (18) rotation synchronously of this gear edge, drives flow sensor (17) and sends 0.01m ³Sampled signal is by microcomputer controller IC ₁(AT89C2051 the is cpu) computing of successively decreasing has realized and original water gauge counter synchronisation water measurement amount.Water meter (1) pedestal is provided with housing, flow sensor (17) is connected with IC-card circuit board (9) on the housing by flow sensor signal line (15), and IC-card circuit board (9) is electrically connected by each insert row line with LCDs (5), hummer (8), card inserting mouth (4), IC-card present (6) and the battery (10) on housing top.The water inlet of water meter (1) is connected with copper ball valve (13), and copper ball valve (13) is opened and closed by IC-card control motor (16) by wheel box (14), travel switch (19).IC-card circuit board (9) is by microcomputer controller IC ₁(AT89C2051), power circuit, IC-card deck (6), LCDs (5), valve controling circuit, buzzer circuit and supply voltage monitoring circuit constitute.Power circuit is contained in the battery case (7) by battery (10) and is connected with IC-card circuit board (9) socket ZC1 by battery case (7) plug, gives IC-card circuit board (9) power supply.IC-card deck (6) is fixed on the top of movement fixed head (11), is connected with rubber gasket (12), IC-card circuit board (9) by socket CZ3, and it is microcomputer controller IC ₁Signal, the instruction input port, finish its input function by the IC-card plug-in card.LCDs (5) is inserted by socket CZ4, realizes the demonstration of data, Chinese character, symbol, and it is microcomputer controller IC ₁Output interface.The open and close of valve controling circuit control motor (16) and copper ball valve (13), motor (16) gets electric operation through socket M1 from triode BG2, drives copper ball valve (13) via wheel box (14) deceleration and opens or close.When copper ball valve (13) open or close put in place after, provide off signal by travel switch (19), motor (16) is stopped operating, travel switch (19) is received on the socket CZ5 of IC-card circuit board (9) by its plug, is the input interface of microcomputer controller IC1.Buzzer circuit is by microcomputer controller IC1 control triode BG1 connecting and disconnecting, and the socket CZ6 by IC-card circuit board (9) is connected with hummer (8), as the plug-in card auditory tone cues that puts in place, auditory tone cues behind the valve-off.Supply voltage monitoring circuit, the input terminal voltage of integrated circuit AN051 are 5V, and when its voltage is lower than 4.6V, promptly battery (10) is when voltage is lower than 5.3V, and user's power voltage insufficient is reminded in output " low-voltage " cue, in time changes battery (10).As untimely replacing battery (10), re-use the water yield and surpass 1m ³After, send instruction by microcomputer controller IC1 card and close copper ball valve (13) through triode BG2.

During use, at first connect IC-card circuit board (9) power supply DC6V, IC-card (subscriber card) is inserted in the IC-card deck (6), microcomputer controller IC1 (AT89C2051) reads the cubic meter information data (being called for short water yield data) that user on the IC-card purchases water by I/O interface pin P12, P16, P7, P8, and these data is write (depositing) go into the readable memory IC3 (AT24C02) that writes of electric erasable.Sampled signal is sent into by the pin P2 of microcomputer controller IC1 (AT89C2051).Microcomputer controller IC1 pin P3 by BG3 send control signal make LCDs (5) electric, send shows signal by pin P17, P18 and show relevant character and numeral.P19 sends control signal by pin, makes triode BG1 must conduct hummer (8) sounding, and the expression read-write card finishes, IC-card is taken out, send control signal by pin P13 subsequently and make triode BG2 conducting, make motor (16) running, open (or closing) copper ball valve (13).Motor (16) running is opened (or closing) through wheel box (14) deceleration copper ball valve (13), copper ball valve (13) rotation has meanwhile driven travel switch (19) and has disconnected (or closed), microcomputer controller IC1 is by pin P14, P15 detects the state of travel switch (19), when the socket CZ5 of travel switch (19) 1.3 lines disconnect, 2.3 copper ball valve (13) was opened when line was connected, when 1.3 lines are connected, 2.3 copper ball valve (13) cut out when line disconnected, travel switch (19) returns again, send control signal for pin P13 through microcomputer controller IC1, the conducting of control BG3 and ending makes copper ball valve (13) rotate 90 ° of rear motors that put in place (16) and shuts down automatically.Write the water yield data of storing among the memory IC3 and reduce to 2m when electric erasable is readable ³When following, microcomputer controller IC1 sends instruction through pin P17, P18 and shows " purchasing water " character reminding for display screen (5), remind the user to purchase water again, the input new data, otherwise when difference is zero, microcomputer controller IC1 footpath pin P13 sends control signal, copper ball valve (13) cuts out through wheel box (14) by BG2 drive motor (16), stops to supply water.

Claims

1, IC-card intellectual water meter, comprise mechanical type water meter (1), it is characterized in that: the water yield that water meter (1) mechanical rotation is measured is converted into electric signal by magnet (18) and flow sensor (17) through flow sensor signal line (15), and this electric signal is through microcomputer controller IC ₁(AT89C2051) handle by the water yield of LCDs (5) demonstration with water meter (1) equivalent, described magnet (18) is arranged on the gear (2) of water meter (1), flow sensor (17) is located at the below of magnet (18), water meter (1) pedestal is provided with housing, the housing internal fixation is provided with IC-card circuit board (9), IC-card control box (3), IC-card deck (6) and power supply (7), hummer (8), LCDs (5) is housed above the housing, the front is provided with card inserting mouth (4), and interconnect by each insert row line, the water inlet of water meter (1) is connected with copper ball valve (13), and copper ball valve (13) is by wheel box (14), travel switch (19) is opened and closed by IC-card control motor (16).

2, IC-card intellectual water meter as claimed in claim 1 is characterized in that: current drive water meter (1) wheel rotation, by the 0.001m of speed reduction unit ³Gear (2) rotates and drives magnet (18) rotation synchronously of this gear edge, drives flow sensor (17) and sends 0.01m ³Sampled signal is by microcomputer controller IC ₁(AT89C2051) computing of successively decreasing has realized LCDs (5) and water meter (1) mechanical counter synchronous measurement.