CN100415022C - A mobile phone with magnetic inspection function and magnetic barcode identification method - Google Patents

Abstract

The present invention relates to a cellphone with a function of magnetic detection and a method for identifying magnetic bar codes. The cellphone comprises a digital baseband processor, a display area, a keyboard area, a loudspeaker and a magnetic head, wherein the display area, the keyboard area, the loudspeaker and the magnetic head are connected with the digital baseband processor. The cellphone also comprises an interface circuit of the magnetic head, a processing and identifying program module and an identifying process control module, wherein the interface circuit of the magnetic head is respectively connected with the digital baseband processor and the magnetic head, is used for controlling the magnetic head to read information, and receives and amplify signals read by the magnetic head; the processing and identifying program module is arranged in the digital baseband processor, is used for receiving identifying programs updated from a network, and processes and identifies the signals input by the interface circuit of the magnetic head; the identifying process control module is arranged in the digital baseband processor, is used for controlling the digital baseband processor to turn on and/or turn off the interface circuit of the magnetic head, and controls the digital baseband processor to receive the signals output by the interface circuit of the magnetic head. The present invention simplifies a process of forged note identifying, can identify bills of different types via downloading a plurality of identifying programs or updating the identifying programs, and simultaneously improves the interest of cellphones.

Description

A mobile phone with magnetic inspection function and magnetic barcode identification method

technical field

The invention relates to a mobile phone with a magnetic inspection function and a magnetic barcode identification method, in particular to a mobile phone with a magnetic head and a magnetic head interface circuit adapted to different bill identification by downloading a special JAVA identification program.

Background technique

At present, magnetic printing technology is widely used in anti-counterfeiting on occasions such as train tickets, monthly passes, stamps, checks, invoices and commodities, especially the fourth edition of RMB also uses this anti-counterfeiting technology.

We often see all kinds of fake bills and goods in our daily life, but many people lack the common sense to identify genuine and fake bills and goods, such as the elderly and minors, who will be deceived if they are a little careless. Although banknote detectors are used to check the authenticity of RMB or other inspection devices in many transactions, these devices cannot be carried and used when traveling. At this time, it can only be distinguished by manual experience, which is very inconvenient. And current multiple anti-counterfeiting technology application is comparatively inconvenient, must dial special-purpose telephone and will report a long string of passwords when making an inquiry for example, this is very inconvenient when the phone is busy and there is no phone. In addition, the equipment for identifying various magnetic anti-counterfeiting information is generally not universal. The identification of magnetic anti-counterfeiting information requires special equipment, and the price of this equipment is relatively high (about several hundred yuan), and the use area is relatively narrow. Will not buy.

Also have some to be easy to carry, and the currency checking device that its cost is not high, as People's Republic of China Invention Bulletin CN 1457206A, this invention discloses a kind of banknote checking mobile phone. This invention applies banknote detection technology to mobile phones, and mainly realizes banknote detection functions by circuits such as photoelectric sensor 1, magnetic sensor 2, banknote detection light source 3, microprocessor 4 and display 5. Wide application features provide a very convenient tool for banknote inspection at any time.

Even so, this invention can only be single fixedly applicable to a kind of concrete banknote checking, and its banknote checking function is more fixed, can't be applicable to various concrete situation changes and function single (simply combining mobile phone and magnetic banknote checking machine simply, adopting Hardware identification does not make full use of the characteristics of the mobile phone structure, and does not fully disclose the specific circuit structure of the combination of the mobile phone and the magnetic banknote detector), especially if the banknote is revised or needs to check foreign exchange, it becomes powerless, and it is impossible to verify other bills , commodities and other fields. In addition, the magnetic banknote detection mobile phone in the prior art adopts hardware identification, so it is not convenient for dynamic charging and management, and its adaptability and expandability are limited.

Contents of the invention

The technical problem to be solved by the present invention is to provide a mobile phone with a magnetic inspection function and a magnetic barcode identification method, which makes the identification of counterfeit banknotes easier and easier, and can identify different bills at the same time, while improving the fun of the mobile phone.

In order to achieve the above object, the present invention provides a mobile phone with a magnetic inspection function, comprising a digital baseband processor, a display area connected to the digital baseband processor, a keyboard area, a loudspeaker, and a magnetic head, which is characterized in that it also includes : a magnetic head interface circuit, connected with the digital baseband processor and the magnetic head respectively, used to control the magnetic head to read information, and receive and amplify the signal read by the magnetic head; a processing identification program module, stored in the same as the magnetic head In the memory connected to the digital baseband processor, it is used to download and update from the network, and process and identify the signal input by the magnetic head interface circuit; an identification process control module is stored in the connection with the digital baseband processor In the memory, it is used to control the digital baseband processor to enable and/or disable the magnetic head interface circuit, and control the digital baseband processor to receive the signal output by the magnetic head interface circuit.

The above-mentioned mobile phone with magnetic inspection function is characterized in that the processing and identification program module and the identification process control module realize control, processing and identification through a JAVA virtual machine.

The above-mentioned mobile phone with magnetic inspection function is characterized in that the digital baseband processor utilizes a general-purpose input/output GPIO pin to enable and/or close the magnetic head interface circuit, and simultaneously utilizes an A/D input line to be connected to the The magnetic head interface circuit receives the signal.

The above-mentioned mobile phone with magnetic testing function is characterized in that the JAVA virtual machine provides an interface for the JAVA identification program module to control the magnetic head interface circuit.

The above-mentioned mobile phone with magnetic inspection function is characterized in that the JAVA identification program module can be one or more JAVA identification program modules used for identification of different types of magnetic anti-counterfeiting bills.

The above-mentioned mobile phone with magnetic inspection function is characterized in that the JAVA identification program module can be downloaded or updated through the websites of mobile phone developers, commodity manufacturers, bill issuers or third parties.

The above-mentioned mobile phone with magnetic detection function is characterized in that the keyboard area is provided with a shortcut key for activating the process identification program module and the identification process control module.

The above-mentioned mobile phone with magnetic inspection function is characterized in that the display area includes a menu item, which is used to activate the process identification program module and the identification process control module.

The above-mentioned mobile phone with magnetic inspection function is characterized in that it also includes a recognition result output prompt module, and the recognition result output prompt module is a mobile phone liquid crystal display for graphic image display; or a loudspeaker for voice and music alarm ; Or an LED light emitting device.

The above-mentioned mobile phone with magnetic inspection function is characterized in that the magnetic head is a magnetic ink printed pattern barcode for identifying the surface of the article.

The present invention also provides a method for identifying a magnetic barcode using a mobile phone with a magnetic inspection function, which is characterized in that it includes the following steps: setting a magnetic head interface circuit, which is respectively connected with a digital baseband processor and a magnetic head, and is used to control the magnetic head to read information, and receive and amplify the signal read by the magnetic head; a processing identification program module is set, stored in the memory connected to the digital baseband processor, for downloading and updating from the network, and for the interface of the magnetic head The signal input by the circuit is processed and identified; an identification process control module is set, stored in a memory connected to the digital baseband processor, used to control the digital baseband processor to enable and/or close the magnetic head interface circuit , and control the digital baseband processor to receive the signal output by the magnetic head interface circuit.

The above-mentioned method is characterized in that the processing and recognition program module and the recognition process control module realize control, processing and recognition through a JAVA virtual machine.

Said method is characterized in that said digital baseband processor utilizes a general-purpose input/output GPIO pin to enable and/or close said magnetic head interface circuit, and simultaneously utilizes an A/D input line to be connected to said magnetic head interface circuit to receive Signal.

The above method is characterized in that the JAVA virtual machine provides a JAVA recognition program module to control the interface of the magnetic head interface circuit.

The above method is characterized in that the JAVA identification program module realizes the identification step by including one or more JAVA identification program modules for identification of different types of magnetic anti-counterfeit bills.

The above method is characterized in that it also includes a step of downloading or updating the JAVA identification program module from the websites of mobile phone developers, commodity manufacturers, bill issuers or third parties.

Said method is characterized in that said JAVA identification program module further comprises the steps of: carrying out AD sampling to the signal transmitted by the magnetic head interface circuit; performing finite impulse response filtering; realizing adaptive gain control; performing fast Fourier transform; Extract frequency domain features; evaluate frequency domain features; retrieve identification database; give identification results.

The efficacy of the present invention is to make the identification of counterfeit banknotes easier and easier. By downloading multiple identification programs or updating the identification programs, various types of bills can be identified, and at the same time, the interest of the mobile phone is improved.

The present invention will be described in detail below in conjunction with the accompanying drawings and specific embodiments, but not as a limitation of the present invention.

Description of drawings

Fig. 1 is the block diagram of existing banknote checking mobile phone;

Fig. 2 is a structural block diagram of the present invention;

Fig. 3 is the flow chart of the recognition check of the JAVA recognition program in the present invention.

Detailed ways

Please refer to Fig. 2, the mobile phone of tool magnetic inspection function of the present invention comprises a digital baseband processor 10, the display area 20 that is connected with it, keyboard area 30, loudspeaker 40, magnetic head 50, magnetic head interface circuit 60, this magnetic head interface circuit 60 and The magnetic head 50 is connected to the digital baseband processor 10 and is controlled by the digital baseband processor 10 to receive and amplify the information read by the magnetic head 50 . The magnetic head 50 is controlled by the magnetic head interface circuit 60 , and the magnetic head interface circuit 60 can provide the bias for the magnetic head 50 .

The magnetic head 50 can be a currency detector magnetic head or other magnetic heads.

The mobile phone with magnetic inspection function also includes: a processing recognition program module 102, stored in the memory connected with the digital baseband processor 10, for downloading and updating from the network, and input by the magnetic head interface circuit 60 and a recognition process control module 104, stored in a memory connected to the digital baseband processor 10, used to control the digital baseband processor 10 to enable and/or close the magnetic head interface circuit 60, and control the digital baseband processor 10 to receive the signal output by the magnetic head interface circuit 60. This processing identification program module 102 and identification process control module 104 are to realize control, processing and identification by a JAVA virtual machine, this JAVA virtual machine provides as the JAVA virtual machine of KVM developer, this virtual machine is by downloading special JAVA identification program Adapt to different bill recognition. This JAVA virtual machine KVM provides the interface for the JAVA identification program module to control the magnetic head interface circuit 60, and this interface is connected with an ADC input port on the digital baseband processor, that is, an A/D input line, and the magnetic head interface circuit 60 is received. Transforms the signal output from the process. Here, the recognition process control module and the processing recognition program module are both JAVA programs.

The digital baseband processor 10 uses a GPIO pin to enable and/or disable the magnetic head interface circuit 60, and uses an A/D input line to connect to the magnetic head interface circuit 60 to receive signals.

Here, mobile phone users can download JAVA recognition programs for different bills and commodities on the websites of developers, commodity manufacturers, bill issuers or third parties, and the programs can be free or charged. And the biggest feature of this program is that you can limit the number of times it can be used. Moreover, the user can also download multiple JAVA identification programs at the same time, so that the user can check various bills at the same time. The user can activate the JAVA recognition program through the shortcut key 301 and menu items on the mobile phone. After the recognition is completed, the user is prompted with voice, music, graphic images, or lights.

Please refer to FIG. 3 , which is a flow chart of identification and verification of JAVA identification program modules. The JAVA recognition program module includes two parts, the signal processing part and the recognition database. The signal processing part includes AD sampling 71, FIR filtering 72, adaptive gain control 73 and FFT74 (fast Fourier transform). This signal processing part can be created based on various principles and can utilize various concepts and methods from the field of speech recognition. For example, the magnetic ink printing pattern on the surface of the identified item is a digital barcode, and each barcode can generate a waveform with fixed frequency domain characteristics when the magnetic head passes by. Afterwards, the JAVA recognition program module extracts the frequency domain features 75 from the waveform, evaluates the frequency domain features 76, searches the database 77 for recognition, and finally gives the recognition result 78. This step is the step of recognizing data. Here, the identification database can be updated in real time as the user downloads the JAVA identification program, so that the user can verify various documents.

Certainly, the present invention also can have other multiple embodiments, without departing from the spirit and essence of the present invention, those skilled in the art can make various corresponding changes and deformations according to the present invention, but these corresponding changes All changes and modifications should belong to the protection scope of the claims of the present invention.

Claims (17)

1. A mobile phone with a magnetic inspection function, comprising a digital baseband processor, a display area connected to the digital baseband processor, a keyboard area, a loudspeaker, and a magnetic head, is characterized in that, also includes: A magnetic head interface circuit, respectively connected with the digital baseband processor and the magnetic head, used to control the magnetic head to read information, and receive and amplify the signal read by the magnetic head; A processing identification program module, stored in the memory connected to the digital baseband processor, used for downloading and updating from the network, and processing and identifying signals input by the magnetic head interface circuit; An identification process control module, stored in a memory connected to the digital baseband processor, used to control the digital baseband processor to enable and/or close the magnetic head interface circuit, and to control the digital baseband processor to receive The signal output by the magnetic head interface circuit. 2. the mobile phone with magnetic inspection function according to claim 1, is characterized in that, described processing identification program module and identification process control module are that a JAVA identification program module provided by a JAVA virtual machine realizes control, processing and identification . 3. The mobile phone with magnetic testing function according to claim 2, wherein the digital baseband processor utilizes a general input/output GPIO pin to enable and/or close the magnetic head interface circuit, and simultaneously utilizes a The A/D input line is connected to the magnetic head interface circuit to receive signals. 4. The mobile phone with magnetic testing function according to claim 3, wherein the JAVA virtual machine provides an interface for the JAVA identification program module to control the magnetic head interface circuit. 5. The mobile phone with magnetic inspection function according to claim 4, characterized in that, the JAVA identification program module is one or more JAVA identification program modules for identification of different types of magnetic anti-counterfeit bills. 6. The mobile phone with magnetic testing function according to claim 5, characterized in that, the JAVA identification program module is downloaded or updated by the websites of mobile phone developers, commodity manufacturers, bill issuers or third parties. 7. The mobile phone with magnetic inspection function according to claim 1 or 2, wherein the keyboard area is provided with a shortcut key for activating the processing identification program module and the identification process control module. 8. The mobile phone with magnetic inspection function according to claim 1 or 2, wherein the display area includes a menu item, which is used to activate the processing identification program module and the identification process control module. 9. The mobile phone with magnetic inspection function according to claim 1, is characterized in that, also comprises a recognition result output prompting module, and described recognition result output prompting module is the mobile phone liquid crystal display screen that is used for graphic image display; Or is Loudspeakers for voice and music alarms; or LED light emitting devices. 10. The mobile phone with magnetic inspection function according to claim 1, 2, 4, 5 or 6, wherein the magnetic head is a magnetic ink printed pattern barcode for identifying the surface of the article. 11. A method utilizing a mobile phone with a magnetic inspection function to carry out magnetic barcode identification, characterized in that it comprises the steps: A magnetic head interface circuit is provided, respectively connected with the digital baseband processor and the magnetic head, for controlling the magnetic head to read information, and receiving and amplifying the signal read by the magnetic head; A processing identification program module is set, stored in the memory connected to the digital baseband processor, used for downloading and updating from the network, and processing and identifying the signal input by the magnetic head interface circuit; An identification process control module is set, stored in a memory connected to the digital baseband processor, used to control the digital baseband processor to enable and/or close the magnetic head interface circuit, and control the digital baseband processor The signal output by the magnetic head interface circuit is received. 12. The method according to claim 11, wherein the processing identification program module and the identification process control module realize control, processing and identification through a JAVA identification program module provided by a JAVA virtual machine. 13. The method according to claim 12, wherein the digital baseband processor utilizes a general-purpose input/output GPIO pin to enable and/or close the magnetic head interface circuit, and simultaneously utilizes an A/D input line connected to the head interface circuit to receive signals. 14. The method according to claim 13, wherein the JAVA virtual machine provides an interface for the JAVA recognition program module to control the magnetic head interface circuit. 15. method according to claim 14, is characterized in that, described JAVA recognition program module realizes identification step by comprising one or more JAVA recognition program modules that are used for identification of different types of magnetic anti-counterfeit bills. 16. according to the described method of claim 11,12,13,14 or 15, it is characterized in that, also comprise one from mobile phone developer, commodity manufacturer, note issuer or the third party's website download or update JAVA identification program module A step of. 17. method according to claim 16, is characterized in that, described JAVA recognition program module processing signal further comprises the steps: Perform AD sampling on the signal transmitted by the magnetic head interface circuit; Perform finite impulse response filtering; Realize adaptive gain control; perform a fast Fourier transform; Extract frequency domain features; Evaluate frequency domain features; search for identification databases; Give the recognition result.

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