CN202013597U - Intelligent anti-cheating taxi tax control taximeter - Google Patents

Abstract

The utility model discloses an intelligent anti-cheating taxi tax control taximeter, comprising an external communication module, an IC card interface module, an empty weight vehicle signal processing module, a data storage module, a real-time clock module, a traveled mileage signal processing module and a metering processing module. The real-time clock module is used for storing the present real time clock modified by the metering processing module and reading the present real time clock via the metering processing module; and the metering processing module is used for acquiring signals of the external communication module, the IC card interface module, the traveled mileage signal processing module, the empty weight vehicle signal processing module, the data storage module and the real-time clock module. The intelligent anti-cheating taxi tax control taximeter intelligently prevents cheating by processing the acquired signals in real time according to variable speed characteristic.

Description

The anti-cheating of intelligence Taxation-control Price Calculator in Taxicab

Technical field

The utility model relates to a kind of fee register, particularly relates to the anti-cheating of a kind of intelligence Taxation-control Price Calculator in Taxicab.

Background technology

At present, the common MSC-51 series monolithic of the general employing of the taxed price calculator of common taxi, taxed price calculator is counted the rotational speed pulse signal of speed pickup by single-chip microcomputer, and the characteristic coefficient according to vehicle calculates the mileage that travels then.Like this, Taxation-control Price Calculator in Taxicab just can not be recognized the outside electronic pulse signal that adds.Therefore, a lot of bad taxi-drivers come the information of fee register collection is made amendment with regard to changing electronic pulse signal, thereby cause the fee register overcharge.And this situation does not have good scheme can solve a such problem now as yet.

The utility model content

The technical problems to be solved in the utility model provides the anti-cheating of a kind of intelligence Taxation-control Price Calculator in Taxicab, realizes preventing that taxi from artificially adding electronic pulse signal and practising fraud in the operation process, thereby avoids increasing the fee register charged mileage.

For solving the problems of the technologies described above, the utility model is achieved through the following technical solutions: the anti-cheating of a kind of intelligence Taxation-control Price Calculator in Taxicab, comprise external communication module, IC-card interface module, empty and load signal processing module, data memory module, real-time clock module, distance travelled signal processing module and metering processing module, wherein:

Described real-time clock module is used to preserve the current real-time clock that described metering processing module is revised, and reads current real-time clock by described metering processing module.

Described metering processing module, be used to gather the signal of described external communication module, described IC-card interface module, described distance travelled signal processing module, described empty and load signal processing module, described data memory module and described real-time clock module, according to speed of a motor vehicle speed change characteristic, realize the anti-cheating of Taxation-control Price Calculator in Taxicab by the signal that collects being handled in real time come intelligence.

Further, described metering processing module is the AVR single-chip microcomputer.

Compared with prior art, the beneficial effects of the utility model are: change the one-chip computer of common arithmetic speed the single-chip microcomputer of high-speed computation into, make single-chip microcomputer that enough arithmetic capabilities be arranged, realize advanced intelligent computing; The design's circuit can be than original complexity, the production cost of hardware can not increase yet, can well avoid the artificial adding pulse signal of taxi-driver, can avoid and reduce the complaint of passenger, improve the overall image of taxi industry taxi company.

Description of drawings

Fig. 1 is that the intelligence that the utility model proposes is prevented the functional-block diagram of cheating Taxation-control Price Calculator in Taxicab;

Fig. 2 is the signal waveforms behind the utility model applying pulse;

Fig. 3 is the circuit theory diagrams of DC/DC power module;

Fig. 4 is the circuit theory diagrams of distance travelled signal processing module;

Fig. 5 is the circuit theory diagrams of empty and load signal processing module;

Fig. 6 is the circuit theory diagrams of data memory module;

Fig. 7 is the circuit theory diagrams of real-time clock module;

Fig. 8 is the circuit theory diagrams of IC-card interface module;

Fig. 9 is the circuit theory diagrams of external communication module;

Figure 10 is the circuit theory diagrams of metering processing module;

Figure 11 is the circuit theory diagrams of tax control CPU;

Figure 12 is the circuit theory diagrams of driver module and keyboard load module.

Embodiment

The utility model is described in further detail below in conjunction with drawings and the specific embodiments.

As shown in Figure 1, Fig. 1 is that the intelligence that the utility model proposes is prevented the functional-block diagram of cheating Taxation-control Price Calculator in Taxicab.As can be seen from Figure 1, this fee register comprises DC/DC power module, distance travelled signal processing module, empty and load signal processing module, data memory module, real-time clock module, IC-card interface module, external communication module, metering processing module, tax control CPU and driver module.Described metering processing module is the AVR single-chip microcomputer.The DC/DC power module is realized the conversion of DC voltage, and gives driver module, tax control CPU and data memory module power supply; The distance travelled signal processing module, picking rate sensor signal, and filtering high-frequency interferencing signal guarantee that effective signal can be by the metering processing module; The empty and load signal processing module carries out the judgement of empty and load by the metering processing module; Data memory module, storage is handled the data that resume module is crossed through metering; Real-time clock module is read and write the data of metering processing module, reads current real-time clock and revises the back storage; The IC-card interface module arrives the metering processing module with the information feedback after the IC-card insertion; The external communication module is connected with the metering processing module, realizes booster circuit, produces the needed positive and negative 12V voltage of communicating circuit; The metering processing module realizes processing to various input signals by the software of inside; Tax control CPU receives and wants data presented, and is sent to driver module; Driver module carries out the demonstration of data.This fee register also comprises the keyboard load module, and the keyboard load module carries out the input of data.

As shown in Figure 2, Fig. 2 is the signal waveforms behind the utility model applying pulse.If traditional fee register will write down running car n (6/ vehicle characteristics coefficient) kilometrage, and intelligent anti-cheating pricing device will calculate mileage and alarm according to following process, in the time of the signal t1-＞t2-of sensor output＞t3-t4, can calculate the tyre rotation speed of the current vehicle of vehicle according to the ratio of waveform, if when running to t5-＞t6-＞t7-＞t7-＞t8-＞t10, at this time the rotating speed of vehicle tyre just is equivalent to be doubled, and the commentaries on classics degree of tire can not double suddenly under the situation of normal operation of vehicle and acceleration, but increase gradually, just judge that according to this feature sort signal is the artificial signal that adds, stop simultaneously t6, t8, t10 having the records of distance by the log and alarming, have the records of distance by the log normally again after stopping to add, thereby realize the anti-cheating of intelligence function.

As shown in Figure 3, Fig. 3 is the circuit theory diagrams of DC/DC power module.Power supply is after the D5 input, through entering 6 pin of U15 behind the LC filtering circuit of forming by L1, C23, C24, C25, C26, the pwm circuit of being made up of U15, Q2, L2, D12 etc. is realized the conversion of DC voltage then, gives circuit supplies such as driver module, tax control CPU, data memory module respectively by D9, D10, D11 etc. then.

As shown in Figure 4, Fig. 4 is the circuit theory diagrams of distance travelled signal processing module.Signal enters from 2 pin of U16, at first advanced C35 filtering high frequency interference, carrying out photoelectricity by U16 then isolates, 3 pin output by U16, pass through the low-pass filter of C36, R35, R36, U19E composition again, effectively filtering high-frequency interferencing signal, simultaneously the effective signal that guarantees again can by after enter 39 pin of the U18 of Metrology Division reason module, carry out computing by the metering processing module again.

As shown in Figure 5, Fig. 5 is the circuit theory diagrams of empty and load signal processing module.Signal is exported from 3 pin after entering the U13 photoisolator through R23, enters 40 pin of the U18 of metering processing module then, carries out the judgement of empty and load by the metering processing module again.

As shown in Figure 6, Fig. 6 is the circuit theory diagrams of data memory module.The metering processing module is read and write by 5,6 pin of U11, and the data of needs storage are stored among the U11 after handling.

As shown in Figure 7, Fig. 7 is the circuit theory diagrams of real-time clock module.The metering processing module is read and write by 5,6 pin of U12, read current real-time clock and revise after store among the U12.

As shown in Figure 8, Fig. 8 is the circuit theory diagrams of IC-card interface module.9 pin by the IC-card seat have judged whether that IC-card inserts, and just open the IC-card power supply by 24 pin of U18 if there is card to insert, and cooperate circuit such as U4, U5, U6 to carry out the operations such as read-write of IC-card at 21/22/23/25 pin by metering processing module U18.

As shown in Figure 9, Fig. 9 is the circuit theory diagrams of external communication module.GU1 is connected by 9,10 pin of 9,10 pin with the U18 of metering processing module, GU1 realizes booster circuit by GC2, GC3, GC4, GC5, produce the needed positive and negative 12V voltage of communicating circuit, after the driving change-over circuit by inside is transformed into the RS232 level to the Transistor-Transistor Logic level of 9,10 pin through GR1, GR2 input and output.

As shown in figure 10, Figure 10 is the circuit theory diagrams of metering processing module.U18 is the AVR single-chip microcomputer, and each accessory circuit of each port and front is connected, and realizes processing to various input signals by the software of inside.

As shown in figure 11, Figure 11 is the circuit theory diagrams of tax control CPU.Metering processing module U18 is connected with 10,11 pin of the U3 of tax control CPU by 9,10 pin, will data presented pass to tax control CPU by serial high-speed, and tax control CPU is stored among U1 and the U2 after handling, and send in the driver module by D0-D7.

As shown in figure 12, Figure 12 is the circuit theory diagrams of driver module and keyboard load module.Video data is sent among U7, the U8 by D0-D7, delivers to respectively in the display board after driving, and keyboard is by 1,3,5,7 inputs of J1 interface.

This fee register is the high speed AVR single-chip microcomputer that adopts, its arithmetic speed is tens times of MSC-51 single-chip microcomputer, the anti-cheating of intelligence function Taxation-control Price Calculator in Taxicab is utilized the high speed characteristics of single-chip microcomputer, the calculating of sampling respectively of the pulse width of the rotational speed pulse signal that speed pickup is successively imported, and the characteristic of quickening according to vehicle, identify and add the electronic pulse signal or the rate signal of normal vehicle ', the function if normal vehicle speed signal is then normally had the records of distance by the log, then stop to have the records of distance by the log and send cheating alarm if add electronic pulse signal, and be stored in the data-carrier store the inside, thereby realize the function of the anti-cheating of intelligence.

Claims (2)

1. an intelligence is prevented the cheating Taxation-control Price Calculator in Taxicab, comprise external communication module, IC-card interface module, empty and load signal processing module, data memory module, real-time clock module, distance travelled signal processing module and metering processing module, it is characterized in that:

Described real-time clock module is used to preserve the current real-time clock that described metering processing module is revised, and reads current real-time clock by described metering processing module;

Described metering processing module, be used to gather the signal of described external communication module, described IC-card interface module, described distance travelled signal processing module, described empty and load signal processing module, described data memory module and described real-time clock module, according to speed of a motor vehicle speed change characteristic, realize the anti-cheating of Taxation-control Price Calculator in Taxicab by the signal that collects being handled in real time come intelligence.

2. the anti-cheating of intelligence according to claim 1 Taxation-control Price Calculator in Taxicab, it is characterized in that: described metering processing module is the AVR single-chip microcomputer.

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