CN2285897Y - IC card alcohol tester - Google Patents

Abstract

The utility model belongs to an instrument which adopts a single-chip microcomputer and the IC card technology to detect wine drinking quantity of a driver. The utility model is characterized in that the single-chip microcomputer is connected with a wine sensing sensor, an A/D converter, and an IC card holder; a wine drinking quantity signal which is controlled by the single-chip microcomputer to sample in real time, record, store, display, and input data to a serial communication circuit. When a traffic police works, the IC card of a driver is inserted into the card holder of a detector, the wine drinking data can be recorded in the IC card, and the information of bygone wine drinking record, etc. on the IC card can be referred from a display screen; furthermore, the recording data which can be input to a traffic managing network computer can be counted, analyzed, and scientifically managed.

Description

The IC-card alcohol detector

The utility model relates to the electronic product that adopts single chip microcomputer technology and IC-card technology that the driver's wine-drinking value is detected.

In order to strengthen monitoring to the driver's wine-drinking amount, prevent that the traffic hazard that causes because of driver's wine-drinking from taking place, domestic existing nearly ten utility model patents bulletin, also there is the product of some monitoring aspects of drinking to occur, they mostly go the signal of alcohol probe output to control a relay on-off job after electronic circuit amplifies, compensates, what the contact of relay had is connected with alarm, on the ignition switch of directly receiving automobile that has.The defective of the existing monitor of drinking is, what of driver's wine-drinking value are the data of detection can not quantitatively reflect exactly, and this numerical value is the traffic police punishes degree to the driver that drivings a car under the influence of alcohol a main foundation; In addition, the detection data of existing detecting device do not adopt automatic recording storage, do not adopt computing machine to carry out data storage and data processing, and the traffic police can't know the historical situation violating the regulations of the driver that drinks, thereby can not adapt to the needs that traffic administration adopts computer network to carry out modern management.At present still the report that single chip microcomputer technology and IC-card technology is applied to alcohol detector is seen at the end.

The purpose of this utility model provides a kind of intelligent alcohol detector that adopts the IC-card technology, and it, and can carry out read-write operation and carry out the transmission of data by controlled by single chip microprocessor collection, processing, record, storage and the demonstration of the value of drinking the IC-card sheet.

Accompanying drawing 1 is the theory diagram of the utility model IC-card alcohol detector.

Accompanying drawing 2 is electrical contact synoptic diagram of IC-card deck.

This IC-card alcohol detector, comprise alcohol sensor (4), operational amplifier (5), A/D converter (6), display (7) and stabilized voltage supply (10), it is characterized in that also comprising calendar clock circuit (8), storer (9), serial communication circuit (12), single-chip microcomputer (3) and the IC-card of forming by IC-card sheet (1) and deck (2); From the signal of alcohol sensor (4) behind operational amplifier (5) and A/D converter (6), input single-chip microcomputer (3); Keyboard has T on (11) ₁, T ₂, T ₃Three function key: T ₁Be write key, T ₂For reading key, T ₃Be the serial communication key, their an end ground connection, the other end respectively with single-chip microcomputer (3) P mouth on three line P ₁₂, P ₁₃, P ₁₄Be connected, Single-chip Controlling real-time sampling, recording storage, value shown and data are imported computer by serial communicating circuit (12); The deck of described IC-card (2) is installed in the detecting device, an end ground connection of the normally closed contact (A) of deck (2), and the other end follows the interrupt line of single-chip microcomputer (3) to be connected C through Sheffer stroke gate ₁The contact is connected C with+5V power supply ₅, C ₆Contact ground connection, C ₃, C ₇The contact is connected with the P mouth of single-chip microcomputer (3), wherein C ₃The contact connects serial clock signal, C ₇Be serial data input and output contact; When IC-card sheet (1) inserted deck (2), the IC-card sheet was pushed the normally closed contact (A) of deck (2) open, made promptly to produce a look-at-me on the single-chip microcomputer (3) and start interrupt routine and make IC-card sheet (1) be in waiting status; Write key (T on the keypad (11) ₁) make P ₁₂Line ground connection, the drinking amount data are written in the IC-card sheet (1) in real time; By reading key (T ₂) make P ₁₃Line ground connection, the information that can consult this IC-card sheet (1) record from the display screen of detecting device; Detecting device is connected with computing machine, presses serial communication key (T ₃) make P ₁₄Line ground connection, the data that write down in the detecting device can be input in the computing machine of traffic administration network, thereby can add up easily, analysis and scientific management.

Described alcohol sensor can adopt the gas sensor of semiconductor film membranous type, and it has tubulose heater-type structure, for different alcohol concentrations, can produce different voltage output values.As long as the alcohol user breathes out without a break it, alcohol sensor promptly can produce one and the proportional voltage signal of value of drinking, the utility model with this signal through discharge circuit amplify adjust with current potential after, become digital signal to offer single-chip microcomputer analog signal conversion by A/D converter, the driver's wine-drinking value detects data thereby can obtain quantitatively accurately, and can directly look from the display screen and read.

Described operational amplifier is a kind of can the amplification voltage of alcohol sensor output, and can realize returning to zero, the integrated circuit of amplitude modulation calibration.

It is digital signal corresponding that described A/D converter can simulate conversion of signals with the voltage of discharge circuit output.

Described storer is the circuit that the data after single-chip microcomputer sampling and the processing are stored.

Described stabilized voltage supply is the power supply that the detecting device each several part is powered.

When described serial communication circuit is connected with serial ports of computers, the data of detecting device storage can be transferred in the computing machine through serial communication and goes.

Described display is to have the LCD that Chinese character shows, can be used for showing date, information such as time, driver license number, the value of drinking.

Described calendar clock circuit contains the calendar clock that inside has the long-term not power down of lithium battery, and it provides the date and time parameter for each the detection.

Described IC-card is made up of the IC-card sheet and the deck of working in coordination, and the IC-card seat is installed in the detecting device, and it is that the mechanical support of IC-card sheet contacts with electric.IC-card also claims smart card, is a kind of mobile memory medium more advanced than magnetic card, and the integrated circuit in the card is the EEPROM of standard, its strong anti-interference performance, can encrypt and information capacity big, erasable more than 100,000 times, can use more than 10 years.

Because the utility model adopts IC-card and single chip microcomputer technology, can write down all previous situation of drinking of driver, and can conveniently consult.Also can on the IC-card card, stamp driver's information such as photo, name, age, address, unit, vehicle model as required, realize one card for multiple uses, and durable for a long time.Whenever the traffic police, only need allow the driver breathe out implication to the quick probe of wine on duty, can write down exactly quantitatively and show that the driver's wine-drinking value detects data.Be above standard as driver's wine-drinking, press write key T ₁, the utility model can will be worked as the inferior situation of drinking and be write on driver's the IC-card.The traffic police can send into the value of drinking of this detector recording in the computing machine of networking within a certain period of time, thereby can add up, analyzes and carry out scientific management easily.

Below in conjunction with description of drawings embodiment of the present utility model.

Accompanying drawing 3 is circuit logic diagrams of a kind of embodiment of the present utility model.

Single-chip microcomputer 3 can adopt the 89C52 chip in the present embodiment, its P _oMouth is a data bus, links with the 74HC373 chip and forms low order address latch, P ₂Link as high address line and storer and peripheral hardware.

The storer 9 of present embodiment adopts EEPROM 28C16 chip, as the P of external storage and single-chip microcomputer 3 _oMouth, P ₂Mouth is connected.It is under situation about having a power failure, but the data that long preservation has write down.

IC-card is made up of mutual supporting IC-card sheet 1 and IC-card seat 2, and IC-card sheet 1 can insert IC-card seat 2.The normally closed contact A one end ground connection of IC-card seat 2, the other end is connected with the interrupt line of single-chip microcomputer 3, contact C ₁Be connected contact C with+5 volts of power leads ₅, C ₆Ground wire, contact C ₃, C ₇P with single-chip microcomputer 3 ₁Mouth is connected contact C ₃Connect serial clock signal (CLK), C ₇Be serial data I/O contact (CDA).C ₂, C ₄, C ₈Be standby mouthful of line.

Display 7 can adopt 64 * 128 lattice lcd display, the P of it and single-chip microcomputer 3 _oMouthful, read-write line and code translator 74LS138 be connected, be used to show date, information such as real-time time, card number, the driver license number of driver's IC-card and the value of drinking.

Calendar clock circuit 8 can adopt the calendar clock DS12887 chip of band lithium battery, the P of it and single-chip microcomputer 3 _oMouth, read-write line and code translator 74LS138 are connected, and can obtain calendar time parameter accurately for a long time after once demarcating.

Serial communication circuit 12 uses two RS-232 transmission/receiver MAX202 chips, and it is connected with serial data mouth RXD, the TXD of single-chip microcomputer 3.

A/D converter 6 adopts 8 analog to digital converter ADC0801 chips, and its input is connected with operational amplifier 5, the P of output and single-chip microcomputer 3 _oMouth is connected.

The QM-BJ type gas sensor that alcohol sensor 4 in the present embodiment can adopt intelligence research institute of the Chinese Academy of Sciences to produce.As long as the alcohol user breathes out without a break it, alcohol sensor 4 promptly can produce one and the proportional voltage signal of value of drinking, this signal through operational amplifier 5 amplify adjust with current potential after, become digital signal to offer single-chip microcomputer 3 analog signal conversion by A/D converter 6, thereby can obtain the quantitatively data of driver's wine-drinking value detection accurately.

Core of the present utility model is a single-chip microcomputer 3, by its direct drink real-time sampling, record, storage, demonstration, serial communication of value and the IC-card sheet carried out read-write operation of control.

When the traffic police detects the driver's wine-drinking amount at scene on duty, the IC-card sheet 1 as the business card size (traffic safety information card) that the driver is held inserts in the deck 2 of detecting device, operation keyboard 11 control single chip computers 3, can look information such as card number, the driver license number of reading date, time, driver's IC-card and the value of drinking from display screen, total data can be by being stored in the storer after the Single-chip Controlling acquisition process; Write key T on the keypad 11 ₁, the drinking amount data are written in the IC-card sheet 1 in real time; By reading key T ₂, can consult the information such as all previous situation of drinking that this IC-card sheet writes down from the display screen of detecting device; Detecting device is connected with computing machine, presses serial communication key T ₃, the data that write down in the detecting device can be input in the computing machine of traffic administration network, thereby can add up and carry out the computer network scientific management easily.

Claims (1)

1, a kind of IC-card alcohol detector, comprise alcohol sensor (4), operational amplifier (5), A/D converter (6), display (7) and stabilized voltage supply (10), it is characterized in that also comprising calendar clock circuit (8), storer (9), serial communication circuit (12), single-chip microcomputer (3) and the IC-card of forming by IC-card sheet (1) and deck (2); From the signal of alcohol sensor (4) behind operational amplifier (5) and A/D converter (6), input single-chip microcomputer (3); Keyboard has T on (11) ₁, T ₂, T ₃Three function key: T ₁Be write key, T ₂For reading key, T ₃Be the serial communication key, their an end ground connection, the other end respectively with single-chip microcomputer (3) P mouth on three line P ₁₂, P ₁₃, P ₁₄Be connected, Single-chip Controlling real-time sampling, recording storage, value shown and data are imported computer by serial communicating circuit (12); The deck of described IC-card (2) is installed in the detecting device, an end ground connection of the normally closed contact (A) of deck (2), and the other end follows the interrupt line of single-chip microcomputer (3) to be connected C through Sheffer stroke gate ₁The contact is connected C with+5V power supply ₅, C ₆Contact ground connection, C ₃, C ₇The contact is connected with the P mouth of single-chip microcomputer (3), wherein C ₃The contact connects serial clock signal, C ₇Be serial data input and output contact; When IC-card sheet (1) inserted deck (2), the IC-card sheet was pushed the normally closed contact (A) of deck (2) open, made promptly to produce a look-at-me on the single-chip microcomputer (3) and start interrupt routine and make IC-card sheet (1) be in waiting status; Write key (T on the keypad (11) ₁) make P ₁₂Line ground connection, the drinking amount data are written in the IC-card sheet (1) in real time; By reading key (T ₂) make P ₁₃Line ground connection, the information that can consult this IC-card sheet (1) record from the display screen of detecting device; Detecting device is connected with computing machine, presses serial communication key (T ₃) make P ₁₄Line ground connection, the data that write down in the detecting device can be input in the computing machine of traffic administration network.