CN2300143Y

CN2300143Y - Pre-paid water meter with intelligent card

Info

Publication number: CN2300143Y
Application number: CN 97234341
Authority: CN
Inventors: 彭兴华
Original assignee: Individual
Current assignee: Individual
Priority date: 1997-04-21
Filing date: 1997-04-21
Publication date: 1998-12-09
Anticipated expiration: 2007-04-21

Abstract

The utility model discloses a pre-paid water meter with intelligent card including a gear type metering core and a shell, and a water meter metering pick-up component, an intelligent card charging component, an electric valve and a control circuit of the electric valve are equipped. The structure is novel, and the design is rational, and the water quantity metering component and the intelligent card charging component are combined to be an integrity, and a single chip computer is regarded as the center, and the water quantity value and the password memory unit are provided. The pre-paid water meter with intelligent card has the advantages of accurate metering, stability and reliability, safe using, and convenient installation, etc. Prepaying the water fee through an intelligent card conforms to the reasonable requirement of paying before enjoying in the modern society, and the pre-paid water meter with intelligent card can produce notable social benefits and economic benefits.

Description

Pre-charges water meter with intelligent card

The utility model relates to measures the device that passes through the instrument fluid flow continuously, relates in particular to a kind of pre-charges water meter with intelligent card.

The common water meter inconvenience management of existing water supply industry metering usefulness, easily take place to leak copy, mistake is checked meter phenomenon, and the user is first water, pay in the back.

The purpose of this utility model is to remedy the deficiencies in the prior art to propose a kind of pre-charges water meter with intelligent card.

The purpose of this utility model is achieved by the following technical programs.

This pre-charges water meter with intelligent card comprises gear type metering movement and housing, it is characterized in that:

Be provided with the water meter measurement signal pick-up component, it is located at small magnet and a usefulness securing member sealing and fixing on the tens gear of gear type metering movement by one and forms at the tongue tube below this small magnet on the housing;

And being provided with smart card charging parts, it is a core with the single-chip microcomputer, has the water yield and makes and the cipher memory unit, also has one to preserve prepaid and promptly allow the smart card of water value and be arranged on corresponding deck on the housing;

Also be provided with electrically operated valve and control circuit thereof, electrically operated valve is made up of with ball valve that is fixed on its output shaft and the position control dish that a small magnet is housed the motor of band wheel box, the electrically operated valve control circuit is a bridge switching circuit, each cross-over connection of its double input end have one with the position control dish on the tongue tube of the relative adapted of small magnet, and be connected to smart card single-chip microcomputer two output ports respectively.

The utility model novel structure, reasonable in design, with water consumption measurement parts and smart card charging unit construction one, have accurate measurement, advantage such as reliable and stable, safe in utilization, easy for installation.By the advance water rate of smart card, meet the reasonable demand of enjoying behind modern society's post-pay paystation, can produce remarkable social benefit and economic benefit.

The utility model has the following drawings:

Fig. 1 is the structural representation of utility model;

Fig. 2 is that the A of Fig. 1 is to view;

Fig. 3 is an electrical schematic diagram of the present utility model.

Below in conjunction with embodiment and contrast accompanying drawing the utility model is made an explanation.

The pre-charges water meter with intelligent card of embodiment, the housing 9 that comprises gear type metering movement 8 and plate with cover 1, the water meter measurement signal pick-up component is located at small magnet 6 and a usefulness fastening bolt 5 sealing and fixing on the tens gear 18 of gear type metering movement 8 by one and forms at the tongue tube 7 below this small magnet 6 on the housing 9, smart card charging parts are core with single-chip microcomputer 3, have water yield value and cipher memory unit, single-chip microcomputer 3 adopts AT89C51, be fixed on the cover plate 1, mnemon adopts EEPROM AT93C46, also have one to preserve prepaid and promptly allow the smart card of water value and be arranged on corresponding deck 4 on the housing 9, electrically operated valve is made up of with the position control dish 13 that a small magnet 16 is housed the motor 14 of band wheel box 12 and the ball valve 11 that is fixed on its output shaft, and the electrically operated valve control circuit is one by transistor BG ₁-BG ₄The typical bridge switching circuit of forming 10, its double input end A, each cross-over connection of B have one with position control dish 13 on the

tongue tube

15,17 of small magnet 16 relative adapteds, and be connected to two output port P of smart card single-chip microcomputer 3 respectively ₂, P ₃, motor 14 (M) is connected across bridge switching circuit 10 output terminals.Battery supply Vcc places in the battery case 2.

Smart card is inserted deck 4, and single-chip microcomputer 3 is by the software program operation of setting, and judges earlier whether card is gone up the password that sets in advance in password and the machine identical.When inequality, no longer carry out subsequent operation.When identical, read in the data in the card and deposit in the EEPROM, at this moment, the P of single-chip microcomputer 3 ₂Mouth output high level is with P ₂The pilot lamp that mouth is connected is bright, and this high level is also delivered to the input end A of bridge switching circuit 10, makes transistor BG ₁, BG ₄Conducting, motor M gets electricly just changes, rotate Open valve by the steel ball in the wheel box 12 deceleration rear drive ball valves 11, position control dish 13 in ball valve 11 rotating shafts can be controlled the rotational angle of steel ball in the ball valve 11, small magnet 16 reaches the back, position near tongue tube 15 at valve on it, make tongue tube 15 adhesives, cause transistor BG ₁, BG ₄End, the stall of motor M dead electricity, ball valve 11 keeps ON state.When current passed through, the tens gear 18 of gear type metering movement 8 whenever turned around, and tongue tube 7 is subjected to the magnetic unification inferior, produces a P who delivers to single-chip microcomputer 3 ₇The water meter measurement signal of mouth makes the data minus one in the EEPROM, is zero until data, at this moment the P of single-chip microcomputer 3 ₃Mouth output high level makes transistor BG to the input end B of bridge switching circuit 10 ₂, BG ₃Conducting, motor M get electric counter-rotating, and by the steel ball backward rotation valve-off in the wheel box 12 deceleration rear drive ball valves 11, after the valve pass put in place, small magnet 16 made tongue tube 17 adhesives near tongue tubes 17, causes transistor BG ₂, BG ₃End, the stall of motor M dead electricity, ball valve 11 keeps OFF state, stops to supply water.

Claims

1, a kind of pre-charges water meter with intelligent card comprises gear type metering movement and housing, it is characterized in that:

1.1 be provided with the water meter measurement pick-up part, it is located at small magnet and a usefulness securing member sealing and fixing on the tens gear of gear type metering movement by one and forms at the tongue tube below this small magnet on the housing;

1.2 be provided with smart card charging parts, it is a core with the single-chip microcomputer, has water yield value and cipher memory unit, also has one to preserve prepaid and promptly allow the smart card of water value and be arranged on corresponding deck on the housing;

1.3 be provided with electrically operated valve and control circuit thereof, electrically operated valve is made up of with ball valve that is fixed on its output shaft and the position control dish that a small magnet is housed the motor of band wheel box, the electrically operated valve control circuit is a bridge switching circuit, each cross-over connection of its double input end have one with the position control dish on the tongue tube of the relative adapted of small magnet, and be connected to smart card single-chip microcomputer two output ports respectively.