CN2206479Y - Device capable of automatic detecting pay-as-you-go condition for vehicle - Google Patents

Abstract

The utility model relates to a device capable of automatic detecting pay-as-you-go condition for vehicles. The utility model is composed of a detector, a computer automatic receiving and answering device, and an encoder. The detector is composed of a time control device, the encoder, a transmitting circuit, and a displayer. The computer automatic receiving and answering device is composed of a receiving and decoding circuit, a code card, a memorizer, a micro-control center, and an answering displayer. When the detector can transmit a specific inquiring radio signal, the signal can be received by the computer automatic receiving and answering device; then the utility model can make use of the 'glittering' or 'buzz' to show the payment condition of the vehicles. The device can overcome that the shutdown inspection results in the traffic jam and the device can overcome the leakage that the vehicles don't carry out the payment. The utility model provides a powerful measure for assuring the national fiscal revenue.

Description

Device capable of automatic detecting pay-as-you-go condition for vehicle

The utility model relates to the wireless remote control detection technique.

As everyone knows, every vehicle ' all should be paid the expense of vehicle ' defined to country, purchases expense, goods stock additional cost etc. as road toll, car.It is by the unified management of inspection Zheng Fei department of country that present vehicle is paid the fees.Whether, be by inspector set out on a journey, allow vehicle stop the row back and verify the situation of paying the fees if checking vehicles when paying the fees.This pattern verification workload is big, and inefficiency on the more road of vehicle ', also causes unnecessary traffic jam easily.The method that this inspection is paid the fees, according to statistics, vehicle is looked into rate less than 1% of total vehicle.Thereby created the chance of having an opportunity to take advantage of for the vehicle of evading the tax, the fiscal revenue of country also are subjected to bigger loss.

In order to address this problem, once the someone disclosed employing " radar velocity measurement pattern " and carried out this work.The inspector grasps a transceiver, also adorns last transceiver on vehicle.After the receiver on the car is received the signal that the inspector sends, beam back a signal again, after inspector's receiver is received echo, show the information of paying the fees again.This bidirectional transmit-receive communication detection mode not only can not overcome the contradiction (single-receiver is more than at least thousand yuan) between technical complexity and the price, and also can't resolve the resolution problem that detects many fast running vehicles simultaneously technically.

The purpose of this utility model, be whether to pay the expense of driving vehicle defined to relevant department in order to detect every vehicle exactly on time, do not influence simultaneously the speed of vehicle ' again, for this reason, provide the device of situation " a kind of automatic detection vehicle pay the fees " of low cost, dependable performance.

The utility model is to realize above-mentioned purpose by following concrete measure: this device is to be received automatically by detecting device, computer to answer device and scrambler constitutes.Detecting device by the time control circuit, coding circuit, radiating circuit and display form, the time control circuit output, one tunnel encoded circuit input radiating circuit, another road input display, this four part is installed in the machine box, is used by the inspector.Computer is received automatically and is answered device by receiving decoding circuit, password card, storer, micro-control center and replying display and form, receive the output of decoding circuit, password card, storer, input port with the micro-control center connects respectively, the output at micro-control center with reply display and connect, this five part is installed in another machine box, it is placed on the vehicle, and will replys display with lead and connect vehicle power supply.Scrambler is to be used by vehicle Zheng Fei department, writes the information of paying the fees when every vehicle is paid the fees on the password card.

When the inspector utilizes detecting device, when launching the radio signal of a specific interrogation coding, this signal is automatically received the reception decoding circuit answered in the device to the micro-control center through computer, drive triggering comparator circuit and given canned data compares, if pay the fees still in timeliness, then computer is received the transponder of answering in the device automatically, shows by sign, surpass timeliness if pay the fees, then transponder shows not by sign.This indicates available display lamp, with " flash of light " or not " flash of light " distinguish, also available speech sound device is distinguished with " song " and " not song ".

Below in conjunction with accompanying drawing the utility model is described in detail

Fig. 1 circuit block diagram

Fig. 2 detecting device electrical schematic diagram

Fig. 3 computer is received automatically and is answered the device electrical schematic diagram

Time control circuit in the detecting device mainly is made up of interface microcontroller piece 8255, clock chip 5832, liquid crystal display drive chip 7211; Coding circuit is by single-chip microcomputer MC8051, circuit R ₅Form 3 R ₅Parallel connection is after K switch and power supply connect (power supply is 5V).Radiating circuit is mainly by standard frequency modulation transmitting block MC2833, crystal T _QCAnd capacitor C ₀～C ₈, inductance L ₁, L ₂, resistance R ₁～R ₅Form, be shown as LCD, the connecting relation between the circuit is seen Fig. 2.

Clock chip 5832 is in the normal open electricity condition, its output year, month, day clock signal, the presetting by being connected in single-chip microcomputer contact P of clock signal _1.0, P _1.1And P _1.2On switch finish.The interface relationship of interface block 8255 couplings 5832,7211 and MC8051.Clock signal is leaded up to interface and is driven liquid crystal drive sheet 7211, shows year, month, day at last on LCD.Another road enters single-chip microcomputer by interface, is converted to the time encoding pulse in single-chip microcomputer.When MC8051 is triggered by manual detector switch, at first export one group of relatively pulse from output terminal Txd, capacitor C is passed through in output time coded pulse subsequently ₀Transport to frequency modulation transmitting block MC2833, the emission radio frequency is carried out frequency modulation.In the MC2833 circuit, crystal T _QC, inductance L ₁, capacitor C ₆, C ₅Constitute the third harmonic crystal oscillator, in MC2833, reach L ₂, C ₃Carry out frequency multiplication again three times, and finish the comparison pulse, the time encoding pulse exports antenna loop L to the frequency modulation of radio frequency to by contact 9 ₂, C ₄, C ₈And C ₂, and export in the air by the sky alignment.

It mainly is by standard FM reception piece MC3363, crystal Q that computer is received the reception decoding circuit of answering in the device automatically ₁, Q ₂, and capacitor C ₁₀～C ₁₈, inductance L ₅, L ₆, resistance R ₁, R ₄, R ₅, R ₇～R ₁₁Form; The micro-control center is by single-chip microcomputer 8051, crystal Q ₃Light emitting diode D ₁, capacitor C ₁₇, C ₁₈, resistance R ₅Form; Replying display is by a triode T, resistance R ₁₀, bulb LA forms; Storer and password card all are programmable logic device (PLD) GAL.GAL at storer ₁On write the number-plate number of vehicle, the password card is personality card, card of each car of vehicle, can read and write repeatedly on card, but the password card between car and the car can not exchange.GAL at the password card ₂Go up the cut-off date that writes the number-plate number of this car and the information of paying the fees with scrambler.Connecting relation between the circuit is seen Fig. 3.

When receiving decoding circuit, the radiofrequency signal of being sent by detecting device that receives is through double conversion.Inductance L ₆, capacitor C ₃With crystal Q ₁Constitute first local oscillator, F ₁Constitute the wave filter of first intermediate frequency, capacitor C ₁₃, C ₁₄, crystal Q ₂Constitute second local oscillator, F ₂Constitute the wave filter of second intermediate frequency, inductance L ₅, capacitor C ₁₆Constitute the frequency discrimination loop, comparison pulse and time pulse after the demodulation reduction pass through capacitor C ₁₅Deliver to single-chip microcomputer MC8051.The P of MC8051 ₀Winding point and P ₂Winding point is connecting two programmable logic device (PLD) GAL ₁, GAL ₂GAL ₁In solidified the number-plate number, GAL ₂Be one and can plug sheet.When the car owner pays the fees, extract, write the number-plate number and pay the fees effective cut-off date with scrambler by checking the department of levying.Turn back to again to receive and answer in the device.GAL ₁And GAL ₂Signal all transport to MC8051 and compare.As GAL ₂License plate number that writes and GAL ₁The middle license plate number of solidifying is identical, then the P of MC8051 _1.1Contact is connected a light emitting diode D ₁The automatic receipts of prompting car owner computer are answered device and have been approved GAL ₂, can set out on a journey.After MC8051 receives the comparison pulse, change time pulse that next program relatively receives immediately over to and be written in GAL ₂In pay the fees effective cut-off date, as time of time pulse representative still in effective cut-off date of paying the fees, the contact P of MC8051 then _1.0Output signal, connect by bulb LA and transistor T forms reply display, bulb begins " flash of light ", represents that vehicle pays the fees effectively, P Passable, if the time of time pulse representative above paying the fees effective cut-off date, the contact P of MC8051 then _1.0No signal output, bulb LA is " flash of light " not, and the expression vehicle is paid the fees and was lost efficacy, and the inspector has the right to make vehicle to stop, and goes through the formalities in accordance with regulations.

The utility model has been owing to adopted unidirectional emission, single-chip microcomputer encoding and decoding control, the programmable logic device (PLD) transmission information of paying the fees, and acousto-optic is replied demonstration, makes this install that not only working stability is reliable, and has realized the function of robotization control again.Compare the complicacy of having simplified system greatly with the bidirectional transmit-receive mechanics of communication and reduced cost of products widely.

Adopt the utility model, the inspector can be on any road, also can vehicle must through the road junction inspection of setting up an office.The inspector only need send interrogating signal, and the vehicle that travels need not stop, need not slow down, need not yet under the situation that the driver does any operation, receiving check, and check and be not subjected to the restriction in time, place, overcome unnecessary traffic jam.

Adopt the utility model, vehicle is subjected to the inspection rate can reach 100%, and the modernization level that this not only improves vehicle management alleviates and checks the labour intensity of levying the departmental staff, also can effectively stop the leak that vehicle is evaded the tax in paying the fees simultaneously.This device can not only be used for the inspection of paying the fees of vehicle.Can also be used for the inspection of boats and ships and similar requirement.Aspect tax revenue, provide favourable measure for the fiscal revenue that guarantee country.

Claims (4)

1, a kind of automatic detection vehicle device of situation of paying the fees, it is characterized in that this device is to be received automatically by detecting device, computer to answer device and scrambler constitutes, detecting device by the time control circuit, coding circuit, radiating circuit and display form, advance the output of control circuit, one tunnel encoded circuit input radiating circuit, another road input display, this four part are installed in the machine box; Computer is received automatically and is answered device by receiving decoding circuit, password card, storer, micro-control center and replying display and form, the output that receives decoding circuit, password card and storer connects with the input port at micro-control center respectively, the output at micro-control center with reply display and connect, this five part is installed in another machine box, and will reply display and vehicle power supply connection with lead.

2, according to the device of the claim 1 described situation of paying the fees that checks vehicles, it is characterized in that in the detecting device the time single-chip microcomputer and the liquid crystal display drive circuit that can export the year, month, day clock signal is arranged in the control circuit.

3,, it is characterized in that automatic the receipts in the storer of answering in the device of computer has one to write this license number sign indicating number according to the device of the claim 1 described situation of paying the fees that checks vehicles; And another is the password card, and it can read and write the information of paying the fees repeatedly, and this sheet can be extracted or insert at any time.

4,, it is characterized in that it is display lamp or speech sound device that computer is received the display show label of answering in the device of replying automatically according to the device of the claim 1 described situation of paying the fees that checks vehicles.

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