CN103383789A - Method and system for detecting invoice authenticity - Google Patents

Method and system for detecting invoice authenticity Download PDF

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Publication number
CN103383789A
CN103383789A CN2012102317089A CN201210231708A CN103383789A CN 103383789 A CN103383789 A CN 103383789A CN 2012102317089 A CN2012102317089 A CN 2012102317089A CN 201210231708 A CN201210231708 A CN 201210231708A CN 103383789 A CN103383789 A CN 103383789A
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China
Prior art keywords
invoice
control code
tax control
server
false
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CN2012102317089A
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CN103383789B (en
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李燕
罗成
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TIANJIN HUAQING INFORMATION TECHNOLOGY Co Ltd
Shenzhen Kaifa Technology Co Ltd
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TIANJIN HUAQING INFORMATION TECHNOLOGY Co Ltd
Shenzhen Kaifa Technology Co Ltd
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Priority to CN2012101335323 priority
Priority to CN201210133532 priority
Application filed by TIANJIN HUAQING INFORMATION TECHNOLOGY Co Ltd, Shenzhen Kaifa Technology Co Ltd filed Critical TIANJIN HUAQING INFORMATION TECHNOLOGY Co Ltd
Priority to CN201210231708.9A priority patent/CN103383789B/en
Publication of CN103383789A publication Critical patent/CN103383789A/en
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Abstract

The invention discloses a method for detecting invoice authenticity. The method includes the steps that S1, a shooting unit collects an image of an invoice to be detected; S2, a processing unit conducts optical character recognition on the image of the invoice to be detected and extracts invoice information and a first tax control code, and the invoice information and the first tax control code are displayed in a display unit; S3, a communication unit sends the invoice information and the first tax control code to a server side in a character mode through a communication network; S4, the server side generates a second tax control code according to the invoice information, and the server side compares the second tax control code with the received second tax control code to obtain a detection result; S5, the server side sends the 'true' or 'false' detection result to the communication unit through the communication network. The invention further discloses a system for detecting invoice authenticity. The method and system for detecting invoice authenticity are rapid in invoice information entering and convenient to use.

Description

A kind of method and system for detection of true from false of bills
Technical field
The true and false that the present invention relates to invoice detects, and in particular, relates to a kind of method and system for detection of true from false of bills.
Background technology
Now country has most of province such as Beijing, Shanghai, Hunan, Heilungkiang, Jiangsu, Liaoning to promote the GB tax control machine to dismiss ticket and strengthen managing bill, can grasp taxpayer's business circumstance, be conducive to control the source of tax revenue, ensures that tax revenue receives the people.
At present, the checking tax control machine of China is dismissed the true and false opening of ticket to the true and false of still verifying the invoice printing of user's use, input invoice code, invoice number checking invoice by modes such as phone, note, online, and can not verify the true and false of tax-controlled invoice print data.
along with tax control machine is dismissed wideling popularize of ticket, the false invoice that adopts cover to dismiss ticket constantly comes into the market, the tax authority provides the tax control cash receiving machine management system of logining the tax bureau by computer to carry out true from false of bills and has differentiated, details by manual typing tax-controlled invoice (comprise invoice number, make out an invoice the date, the invoice code, identification number, the amount of money of making out an invoice, tax control code etc.) after, compared by the tax-controlled invoice Information generation tax control code of typing and the tax control code of typing by the tax control cash receiving machine management system, tax-controlled invoice is carried out the true and false to be differentiated, compare successfully be true ticket, unsuccessful is false tickets.But this method is only limited to the tax authority for security consideration to be used, and because the invoice information that needs typing is more very inconvenient, and there is significant limitation in the inhibition of false invoice.
Summary of the invention
The technical problem to be solved in the present invention is, the defectives such as inconvenience provide a kind of invoice information typing the method and system for detection of true from false of bills quick, easy to use for invoice information typing in prior art is many.
The technical solution adopted for the present invention to solve the technical problems is: a kind of method for detection of true from false of bills is provided, adopt by interconnected server end and the terminal of communication network, described terminal comprises processing unit, and the display unit that is connected with processing unit respectively, shooting unit and communication unit, the method for described detection true from false of bills comprises the following steps:
S1, shooting unit collection invoice image to be checked, and described image data transmission is carried out pre-service to processing unit;
S2, processing unit carry out optical character identification to described invoice image to be checked, and extract invoice information and the first tax control code and be shown in display unit, wherein invoice information comprise invoice number, the date of making out an invoice, invoice code, identification number and the amount of money of making out an invoice;
S3, communication unit are sent to server end with character style by communication network with described invoice information and the first tax control code;
S4, described server end generate the second tax control code according to described invoice information, described server end compares described the second tax control code and described the second tax control code that receives, draw testing result, if the first tax control code is identical with the second tax control code, the described invoice to be detected of described testing result indication is true, otherwise described invoice to be detected is false;
S5, described server end will " being true " or " being false " testing result be sent to described communication unit by communication network, report testing result by processing unit by display unit.
In the method for detection of true from false of bills of the present invention, described step S2 comprises step by step following:
S21, described processing unit carry out optical character identification and extract invoice information and the first tax control code described invoice image to be checked;
S22, described processing unit transfer to described invoice information and the first tax control code the display unit of described mobile terminal, and described display unit shows described invoice information and the first tax control code;
S23, confirm described invoice information and the first tax control code whether wrong, if having, the man-machine interaction unit by mobile terminal is modified to described invoice information and the first tax control code until errorless, otherwise directly skips this step.
In the method for detection of true from false of bills of the present invention, at first described communication unit connected with described server end before sending described invoice information and the first tax control code, and described server end carries out authentication and key agreement to described mobile terminal.
In the method for detection of true from false of bills of the present invention, described mobile terminal carries out also will carrying out the image optimization processing to it before optical character identification to described invoice image to be checked.
In the method for detection of true from false of bills of the present invention, described mobile terminal is ticket checking instrument, smart mobile phone or panel computer.
The present invention also provides a kind of system for detection of true from false of bills, comprise for the mobile terminal that extracts invoice information and the first tax control code and be used for generating the second tax control code and thereby itself and described the first tax control code comparison being drawn the server end of testing result according to invoice information, it is interconnected that described mobile terminal and server end pass through communication network; Described mobile terminal comprises:
Be used for gathering the shooting unit of invoice image to be checked,
Be used for described invoice image to be checked is carried out optical character identification, and extract the processing unit of invoice information and the first tax control code,
Be used for showing respectively the display unit of described invoice information, the first tax control code and testing result,
And be used for described invoice information and the first tax control code are sent to the communication unit of the testing result that server end and reception server end send.
In the system for detection of true from false of bills of the present invention, described mobile terminal also comprises the man-machine interaction unit of described invoice information and the first tax control code being modified when wrong for the described invoice information that shows at described display unit and the first tax control code.
In the system for detection of true from false of bills of the present invention, described server end comprises for described mobile terminal being carried out the encryption and decryption authentication ' unit of authentication or key agreement before receiving described invoice information and the first tax control code.
In the system for detection of true from false of bills of the present invention, described mobile terminal also comprises for will carry out to it image optimization unit that image optimization is processed before described invoice image to be checked is carried out optical character identification.
In the system for detection of true from false of bills of the present invention, described mobile terminal is ticket checking instrument, smart mobile phone or panel computer.
Method and system for detection of true from false of bills of the present invention have following beneficial effect: adopt mobile terminal in the method and system for detection of true from false of bills of the present invention, facilitate the user to carry, obtain a/d in any occasion, can be for detection of the true and false of invoice, if receive that false invoice can expose the supplier of false invoice then and there, be conducive to the inhibition that false invoice is used; Mobile terminal is when typing invoice information and tax control code, only the nominal value of need aligning invoice is taken pictures and is got final product, mobile terminal can comparison film carries out optical character identification and obtains invoice information and the tax control code put down in writing on the invoice nominal value, confirm can send to after errorless server end for detection of, simple and quick, do not need manually a large amount of invoice information and the tax control codes of input of user yet, saved the typing time of invoice information and tax control code, facilitated the user yet.
If there are mistake in invoice information and tax control code that optical character identification is extracted, can revise by man-machine interaction unit, to avoid occuring unnecessary mistake.
Description of drawings
The invention will be further described below in conjunction with drawings and Examples, in accompanying drawing:
Fig. 1 is for detection of the theory diagram of the embodiment of system of true from false of bills according to the present invention;
Fig. 2 is for detection of the process flow diagram of the embodiment of method of true from false of bills according to the present invention.
Embodiment
In order to make purpose of the present invention, technical scheme and advantage clearer, below in conjunction with drawings and Examples, the present invention is further elaborated.Should be appreciated that specific embodiment described herein only in order to explain the present invention, is not intended to limit the present invention.
As shown in Figure 1 be a kind of system for detection of true from false of bills, this system comprises mobile terminal and server end 2; Mobile terminal 1 comprises takes unit 101, processing unit 103, display unit 102 and communication unit 104;
Take unit 101 and be used for gathering invoice image to be checked, and with invoice image transmitting to be checked to processing unit 103;
Processing unit 103 is used for invoice image to be checked is carried out optical character identification and extracts invoice information and the first tax control code;
Display unit 102 is used for showing invoice information and the first tax control code, and display unit 102 also is used for showing testing result;
Communication unit 104 is used for invoice information and the first tax control code are sent to server end 2;
Server end 2 is used for the second tax control code is processed and generated to invoice information, server end 2 compares the first tax control code and the second tax control code, draw testing result, if the first tax control code is identical with the second tax control code, testing result indication invoice to be detected is true invoice, otherwise invoice to be detected is false invoice; Server end 2 is sent to mobile terminal 1 with testing result; Communication unit 104 also is used for the test-accepting result, and testing result is transferred to display unit 102.
Preferably, mobile terminal 1 also comprises man-machine interaction unit 105, and man-machine interaction unit 105 is used for the invoice information that shows at display unit 102 and the first tax control code is modified until confirm errorless to invoice information and the first tax control code when wrong.Man-machine interaction unit 105 can be keyboard, can be also touch-screen.Some the time, the identification that mess code or close character can occur for the invoice information that optical character identification obtains and the first tax control code makes mistakes, as lowercase " l " and numeral " 1 ", need the user that it is confirmed, if confirm errorless, can confirm and send invoice information and the first tax control code to server end 2, otherwise needing to revise wrong content by man-machine interaction unit 105.
Preferably, communication unit 104 also is used at first connecting with server end 2 before sending invoice information and the first tax control code, server end 2 is provided with the encrypting and authenticating unit, and the encrypting and authenticating unit is used for after connecting, mobile terminal 1 being carried out authentication and key agreement.Authentication and key agreement are take intelligent SD card as carrier, utilize the security system of IC-card, adopt the tax control card number of SD card after the server initialization and SD card private key to use the RSA Algorithm of 1024 to complete with PKI and the random process key that produces of the corresponding card number of server.
Preferably, mobile terminal also comprises the image optimization unit, the image optimization unit is used for before invoice image to be checked is carried out optical character identification, invoice image to be checked being optimized processing, image optimization process cutting, imagezoom, the character of removal, the character of adjustment, the discrete noise point of the gray processing comprise image, binaryzation, image refinement, character level and smooth, image ask the image processing techniques such as gradient, can be according to wherein a kind of of actual conditions selection or several carrying out arbitrarily in actual mechanical process.
Mobile terminal 1 of the present invention is ticket checking instrument, smart mobile phone or panel computer, and the ticket checking instrument that this ticket checking instrument can be hand-held is provided with camera, keypad, display screen etc. on the ticket checking instrument, and the ticket checking instrument can also be provided with touch-screen; Ticket checking instrument inside is provided with the processing unit 103 of the photo of taking for the treatment of camera, and processing unit 103 comparison films carry out image optimization to be processed and optical character identification; Ticket checking instrument inside also is provided with communication unit 104, and communication unit 104 connects by the wireless communication modes such as 2D, 3D and server end 2.Certain mobile terminal of the present invention 1 also is not limited to above said hand-held ticket checking instrument, can be to realize detecting arbitrarily the device of true from false of bills.
As shown in Figure 2 be a kind of method for detection of true from false of bills, adopt by interconnected server end 2 and the terminal 1 of communication network, terminal 1 comprises processing unit 103, and the display unit 102 that is connected with processing unit 103 respectively, shooting unit 101 and communication unit 104, it is characterized in that, the method that detects true from false of bills comprises the following steps:
S1, take unit 101 and gather invoice images to be checked, and image data transmission is carried out pre-service to processing unit 103;
S2,103 pairs of invoice images to be checked of processing unit carry out optical character identification, and extract invoice information and the first tax control code and be shown in display unit 102, wherein invoice information comprise invoice number, the date of making out an invoice, invoice code, identification number and the amount of money of making out an invoice;
S3, communication unit 104 are sent to server end 2 with character style by communication network with invoice information and the first tax control code;
S4, server end generate the second tax control code according to invoice information, server end compares the second tax control code and the second tax control code that receives, draw testing result, if the first tax control code is identical with the second tax control code, testing result indication invoice to be detected is true, otherwise invoice to be detected is false;
S5, server end will " being true " or " being false " testing result be sent to communication unit 104 by communication network, by processing unit 103 by display unit 102 report testing results.
Wherein, in this method when invoice to be detected is taken, must the whole ticket information of invoice is complete be filmed clearly, want to guarantee its surperficial invoice number, the date of making out an invoice, invoice code, identification number, the make out an invoice amount of money and tax control code all can identify clearly, and the invoice information that the invoice number here, the date of making out an invoice, invoice code, identification number and the amount of money of making out an invoice are namely mentioned in the method, the tax control code here namely refers to the first tax control code.
Optical character identification refer to (be called for short OCR, its English full name is Optical Character Recognition) refer to text information is scanned obtain image file after, image file is carried out analyzing and processing, obtain the process of word and layout information.Invoice information and the first tax control code be by can show after optical character identification, confirms to be sent to server end 2 by communication unit 104 after errorless through the user.
Be understandable that, server end 2 is provided with the tax control cash receiving machine management system, and the invoice information of definite invoice is associated and stores with the tax control code, can generate corresponding tax control code after receiving invoice information, i.e. the second tax control code; The second tax control code is theoretic real tax control code in fact, when the first tax control code when identical, can determine that invoice is true with the second tax control code.
Preferably, step S2 comprises step by step following:
S21,103 pairs of invoice images to be checked of processing unit carry out optical character identification and extract invoice information and the first tax control code;
S22, processing unit 103 transfer to invoice information and the first tax control code the display unit 102 of mobile terminal 1, and display unit 102 shows invoice information and the first tax control code;
S23, confirm invoice information and the first tax control code whether wrong, if having, the 105 pairs of invoice information of man-machine interaction unit by mobile terminal 1 and the first tax control code are modified until errorless, otherwise directly skip this step.
Wherein display unit 102 can be display, and man-machine interaction unit 105 can be keyboard, also can be arranged on touch-screen on display.Some the time, the identification that mess code or close character can occur for the invoice information that optical character identification obtains and the first tax control code makes mistakes, as lowercase " l " and numeral " 1 ", need the user that it is confirmed, if confirm errorless, can confirm and send invoice information and the first tax control code to server end 2, otherwise needing to revise wrong content by man-machine interaction unit 105.
Preferably, at first communication unit 104 connected with server end 2 before sending invoice information and the first tax control code, and 2 pairs of mobile terminals of server end 1 carry out in authentication or key agreement.Authentication and key agreement are take intelligent SD card as carrier, utilize the security system of IC-card, adopt the tax control card number of SD card after the server initialization and SD card private key to use the RSA Algorithm of 1024 to complete with PKI and the random process key that produces of the corresponding card number of server.
Preferably, 1 pair of invoice image to be checked of mobile terminal carries out also will carrying out the image optimization processing to it before optical character identification, this processing procedure comprise cutting, imagezoom, the character of removal, the character of adjustment, the discrete noise point of gray processing, binaryzation, the image of image refinement, character level and smooth, image ask the image processing techniques such as gradient, can select wherein a kind of or several carrying out arbitrarily according to actual conditions in actual mechanical process.
Be understandable that, in step S5, mobile terminal 1 receives testing result by communication unit 104, is transferred to display unit 102 after communication unit 104 reception testing results and is shown to the user.
A specific embodiment of the method for detection of true from false of bills of the present invention is:
The user receives that a machine plays a/d and want to differentiate its true and false, so utilize a hand-held ticket checking instrument to detect, at first this machine is dismissed ticket and set level, take pictures with hand-held ticket checking instrument, alignment machine is dismissed ticket the information completely of whole nominal value is filmed clearly;
Hand-held ticket checking instrument carries out optical character identification to it after automatically the photo of taking being carried out the image optimization processing, and the invoice information after identification and the first tax control code show below:
Invoice code 211001170010
Invoice number 00744295
Date 2011-11-25 makes out an invoice
Identification number 012070014596
The amount of money 43.50 of making out an invoice
Tax control code 29494095570565586755
The user compares the ticket information that machine is dismissed ticket, after confirming that the above information content is errorless, clicking the ticket checking instrument determines, the ticket checking instrument by wireless telecommunications directly and server end 2 connect, 2 pairs of hand-held ticket-validating machines of server end carry out authentication, the user clicks acknowledgement key after inputting account and password, after authentication is passed through, server end 2 generates the second tax control code according to invoice information, and because server end 2 is provided with the tax control cash receiving machine management system, the second tax control code can directly obtain according to invoice information.Relatively whether the first tax control code is identical with the second tax control code, if identical, to dismiss ticket be true to the explanation machine, otherwise be vacation.It is that true or false testing result sends to hand-held ticket checking instrument that server end 2 is dismissed ticket with machine, and hand-held ticket checking instrument shows on display screen.
Although the present invention describes by specific embodiment, it will be appreciated by those skilled in the art that, without departing from the present invention, can also carry out various conversion and be equal to alternative the present invention.In addition, for particular condition or material, can make various modifications to the present invention, and not depart from the scope of the present invention.Therefore, the present invention is not limited to disclosed specific embodiment, and should comprise the whole embodiments that fall in claim scope of the present invention.

Claims (10)

1. method for detection of true from false of bills, adopt by interconnected server end (2) and the terminal (1) of communication network, described terminal (1) comprises processing unit (103), and the display unit (102) that is connected with processing unit (103) respectively, shooting unit (101) and communication unit (104), it is characterized in that, the method for described detection true from false of bills comprises the following steps:
S1, shooting unit (101) gather invoice image to be checked, and described image data transmission are carried out pre-service to processing unit (103);
S2, processing unit (103) carry out optical character identification to described invoice image to be checked, and extract invoice information and the first tax control code and be shown in display unit (102), wherein invoice information comprise invoice number, the date of making out an invoice, invoice code, identification number and the amount of money of making out an invoice;
S3, communication unit (104) are sent to server end (2) with character style by communication network with described invoice information and the first tax control code;
S4, described server end generate the second tax control code according to described invoice information, described server end compares described the second tax control code and described the second tax control code that receives, draw testing result, if the first tax control code is identical with the second tax control code, the described invoice to be detected of described testing result indication is true, otherwise described invoice to be detected is false;
S5, described server end will " being true " or " being false " testing result be sent to described communication unit (104) by communication network, by processing unit (103) by display unit (102) report testing result.
2. the method for detection of true from false of bills according to claim 1, is characterized in that, described step S2 comprises step by step following:
S21, described processing unit carry out optical character identification and extract invoice information and the first tax control code described invoice image to be checked;
S22, described processing unit transfer to described invoice information and the first tax control code the display unit of described mobile terminal, and described display unit shows described invoice information and the first tax control code;
S23, confirm described invoice information and the first tax control code whether wrong, if having, the man-machine interaction unit by mobile terminal is modified to described invoice information and the first tax control code until errorless, otherwise directly skips this step.
3. the method for detection of true from false of bills according to claim 1 and 2, it is characterized in that, at first described communication unit connected with described server end before sending described invoice information and the first tax control code, and described server end carries out authentication or key agreement to described mobile terminal.
4. the method for detection of true from false of bills according to claim 3, is characterized in that, described mobile terminal carries out also will carrying out the image optimization processing to it before optical character identification to described invoice image to be checked.
5. the method for detection of true from false of bills according to claim 4, is characterized in that, described mobile terminal is ticket checking instrument, smart mobile phone or panel computer.
6. system for detection of true from false of bills, it is characterized in that, comprise for the mobile terminal that extracts invoice information and the first tax control code and be used for generating the second tax control code and thereby itself and described the first tax control code comparison being drawn the server end of testing result according to invoice information, it is interconnected that described mobile terminal and server end pass through communication network; Described mobile terminal comprises:
Be used for gathering the shooting unit of invoice image to be checked,
Be used for described invoice image to be checked is carried out optical character identification, and extract the processing unit of invoice information and the first tax control code,
Be used for showing respectively the display unit of described invoice information, the first tax control code and testing result,
And be used for described invoice information and the first tax control code are sent to the communication unit of the testing result that server end and reception server end send.
7. the system for detection of true from false of bills according to claim 6, it is characterized in that, described mobile terminal also comprises the man-machine interaction unit of described invoice information and the first tax control code being modified when wrong for the described invoice information that shows at described display unit and the first tax control code.
8. the system for detection of true from false of bills according to claim 7, it is characterized in that, described server end comprises for described mobile terminal being carried out the encryption and decryption authentication ' unit of authentication or key agreement before receiving described invoice information and the first tax control code.
9. the system for detection of true from false of bills according to claim 8, is characterized in that, described mobile terminal also comprises for will carry out to it image optimization unit that image optimization is processed before described invoice image to be checked is carried out optical character identification.
10. according to claim 6~9 any one described systems for detection of true from false of bills, is characterized in that, described mobile terminal is ticket checking instrument, smart mobile phone or panel computer.
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CN103646335B (en) * 2013-12-27 2017-07-04 税友软件集团股份有限公司 A kind of electronic invoice detection method and device
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