Key Technology Research And Realization For New Type Of Banknote Based On QR Technology

Along with our country economy and the rapid development of science and technology,people’s living standard is improving now. Daily cash flow is more and more frequent. At thesame time, business, peddle counterfeit phenomenon is also increasing, and the upward trend.Although the currency count machine function in ceaseless promotion, but with thedevelopment of high technology, counterfeit production technology has gradually improved,the simulation degree makes impossible to guard against false. Now all is based on type ofpaper money anti-counterfeiting technology is difficult to meet the actual needs. Therefore,paper money anti-counterfeiting technology improvements are imperative.At present, the existing market in the production of automatic detector, detector and canidentify the authenticity, the banknote checking process, produced by the bacteria dust, notreatment, even if a dust removing blower and an ash storage box, however, with dust easilyspread, harm the health of staff. In the online inquiry and field visits, the market was notfound with dust removing and sterilizing device detector. In order to people’s health, withdust removing and sterilizing device detector manufacturing, promotion, application is verynecessary.Anti-counterfeiting of bank note is a very important and difficult issue which the world’sfinancial system is faced. Based on the existing security features, a new digital securitytechnology which combined digital two-dimensional code of the QR Code with digitalwatermark technology was proposed. The author used RSA encryption algorithm to encryptthe code, and then generated two-dimensional code. Finally, DCT-domain watermarking wasused to embed and extract watermark image. The simulation results demonstrate theeffectiveness of the technology.Digital watermarking technology is applied to the paper money anti-counterfeiting, isQR Code two-dimensional code pattern as a digital watermark, by Arnold transformscrambling is embedded into a note. According to human visual differences, should choosethe wavelet coefficient changes relatively large location embedded QR Code two-dimensional graphics, embedded in the graphic intensity should be in accordance with the waveletcoefficient adaptively embedded into low frequency domain and the embedded system basedon ARM11as a digital watermark detection apparatus to extract the QR Codetwo-dimensional graphics. The experiments show that the algorithm to ensure that notes theinvisibility of the watermark at the same time, has strong anti-noise ability, the notes defaced,shear, noise and other operations and has good robustness.Two dimensional bar code applied to paper money anti-counterfeiting, is the first papercurrency number encrypted password, will add encoded codeword sequence and errorcorrecting code, eventually forming a two-dimensional code pattern, the mask then digitalwatermark technology embedded in the paper. Extraction time, is the reverse process ofembedding, the first extracting watermark pattern, and two-dimensional code decoding,finally tell the true from the false.At last, based on the technology of Ultraviolet sterilization, the thesis added the widewavelength of LED source in it and detection apparatus to extract the QR Codetwo-dimensional graphics. The experiments show that the algorithm to ensure that notes theinvisibility of the watermark at the same time, has strong anti-noise ability, the notes defaced,shear, noise and other operations and has good robustness.Two dimensional bar code applied to paper money anti-counterfeiting, is the first papercurrency number encrypted password, will add encoded codeword sequence and errorcorrecting code, eventually forming a two-dimensional code pattern, the mask then digitalwatermark technology embedded in the paper. Extraction time is the reverse process ofembedding, the first extracting watermark pattern, and two-dimensional code decoding,finally tell the true from the false.At last, based on the technology of Ultraviolet sterilization, the thesis added the widewavelength of LED source in it and realized the whole technology of Digital watermarking，Digital watermarking and Sterilization.