WO2000048123A1

WO2000048123A1 - Smart anticounterfeit pdf card identity certificate identifier

Info

Publication number: WO2000048123A1
Application number: PCT/CN1999/000149
Authority: WO
Inventors: Shuxin Zhang; Chuanxiang Xu
Original assignee: Beijing Courage Technology Development Co., Ltd.
Priority date: 1999-02-12
Filing date: 1999-09-22
Publication date: 2000-08-17
Also published as: AU5726099A; CN2357370Y

Abstract

The present invention relates to a smart, anticounterfeit PDF card identity certificate identifier including operational keypad, liquid crystal display. The identifier further includes a central processing unit which performs decryption and decompression and performs fingerprint full automatically identification, display of photo and result of card checkout, etc., PDF 2-dimensional bar code reader and fingerprint reader. It incorporates many functions such as reading PDF 2-dimensional bar code, collecting fingerprint, fingerprint comparison, displaying image information of photos and character information such as names into one unit. It has strong computing, controlling, communicating capabilities and has features of rapid system response speed, electricity saving and space saving. The identifier can process a PDF 2-dimensional bar code fingerprint identity certificate in which more than two fingerprints, one color photo and character information are stored.

Description

Intelligent anti-counterfeit PDF card ID reader

Technical field

The invention belongs to an ID card identifier, in particular, it integrates many functions such as reading PDF two-dimensional bar code, collecting fingerprints, fingerprint comparison, displaying photos and other image information and name and other text information, and has 32-bit data processing capabilities. An intelligent instrument with strong network communication capabilities. Background technique

The problem of anti-counterfeiting of documents has always been a problem that bothers people and governments. For many important documents, such as ID cards, credit cards, passports, and confidential department passes, etc., the identity verification of the card holder is its main function. Because of the importance of these documents to individuals and society, and because the current technology of forgery of documents is becoming more and more sophisticated, the security and fraud of these documents have become more and more urgent issues. Existing PDF card identification devices can only read the information of a two-dimensional PDF barcode or use fingerprint readers and computer storage recognition systems to complete the process of fingerprint collection and fingerprint comparison. These devices not only occupy a large space and consume a lot of energy, but also cannot read PDF two-dimensional barcodes, collect indicators, compare indicators in one device at the same time, display image information such as photos and text information such as names. Disclosure of invention

The purpose of the present invention is to provide an intelligent instrument that integrates many functions such as reading PDF two-dimensional barcodes, collecting fingerprints, fingerprint comparison, displaying photos and other image information, and text information such as names. It has strong computing, control, and communication. Features and fast system response, power saving, space saving features.

The invention is designed to identify a PDF two-dimensional barcode card ID document which stores two fingerprint characteristic data encrypted and compressed, a photo and related text information. It includes an operating keyboard, a display, which is characterized in that it also includes a central processing unit for decrypting, decompressing and fully automatic fingerprint identification, displaying photos and card verification results, and other text information, PDF two-dimensional barcode reader, fingerprint reading Device, instrument main board, communication interface; The central processing unit includes a 32-bit embedded CPU chip, a data storage chipset, a program memory chipset, a sequential logic control chipset, and other devices. The communication interface is a dedicated expansion interface board, which includes an ECP. Parallel communication interface, three serial communication interfaces (one connected to the WAN through a modem, the other connected to a PDF two-dimensional barcode reader, and one RS485 to form a serial communication interface for the local area network), a status indicator drive interface, and the main board of the instrument consists of AC / DC power module, keyboard decoding module, encryption module, optical fingerprint scanning interface circuit, small screen LCD interface circuit.

The fingerprint reader used in the present invention may be an optical fingerprint sensor (containing

Standard frame grabber) or CMOS fingerprint sensor. The display uses a color liquid screen or a color monitor.

Brief description of the drawings

The embodiments are described in detail below with reference to the drawings.

FIG. 1 is a schematic block diagram of the present invention;

FIG. 2 is an operation flowchart of the present invention;

FIG. 3 is a circuit block diagram of a central processing unit according to the present invention;

FIG. 4 is a circuit block diagram of a dedicated expansion interface board according to the present invention;

FIG. 5 is a circuit schematic diagram of an AC / DC power supply module in the instrument main board of the present invention; FIG. 6 is a circuit schematic diagram of a keyboard decoding module in the instrument main board of the present invention; FIG. 7 is a circuit of an encryption module in the instrument main board of the present invention Functional block diagram

8 is a circuit schematic diagram of an optical fingerprint scanner interface circuit in an instrument main board; FIG. 9 is a circuit schematic diagram of a small screen liquid crystal interface circuit in an instrument main board of the present invention; FIG. 10 is a circuit principle block diagram of a fingerprint acquisition module of the present invention;

FIG. 11 is a circuit block diagram of a display screen and a driving card according to the present invention. The best way to implement the invention

Referring to the figure, the main hardware modules of the instrument are: Central Processing Unit:

As shown in Figure 3. The central processing unit performs functions such as fingerprint feature extraction, automatic fingerprint comparison, data decryption and decompression, logic control, and data communication. The unit is embedded by 32 bits It is composed of a CPU chip, a data memory chipset, a program memory chipset, and a sequential logic control chipset. Dedicated expansion interface board:

As shown in Figure 4, the expansion interface board integrates an ECP parallel communication interface, two RS232C serial communication interfaces (one connected to the WAN through a MODEM, and the other connected to a PDF two-dimensional barcode reader), and one RS485 to form a string of LANs. Communication interface, status indicator drive interface (indicating power status, card verification success, card verification failure). Instrument motherboard:

AC / DC power module U1 provides + 5V, U2 provides + 12V, and U3 provides -12V power (for the circuit schematic diagram, see Figure 5); keyboard decoding module (the circuit schematic diagram is shown in Figure 6, where U4 is the keyboard decoding Chip, J1 is the standard keyboard interface socket); encryption module (the circuit schematic block diagram is shown in Figure 7); optical fingerprint scanner interface circuit (the circuit schematic diagram is shown in Figure 8, where U5 is the frame grabber video input socket and U6 is optical Fingerprint scanner signal output and power socket); small-screen LCD interface circuit (see Figure 9 for its circuit schematic, where U7 is the LCD signal line, control line, power interface, and U8 is the socket of the interface on the motherboard). Fingerprint acquisition module: (optical fingerprint acquisition unit)

It consists of an optical fingerprint scanner and an image capture card that converts video signals into digital quantities. The circuit block diagram is shown in Figure 10. The schematic circuit diagram of the color LCD display and color LCD driver card is shown in Figure 11.

PDF 2D barcode reader:

Available in gun-reading (hand-held) and card-reading (plug-in) models. Operator keyboard:

A 4X4 matrix keyboard is used, and the keyboard decoding module on the main board of the instrument scans and decodes the commands and data input by the keyboard. Structure of the instrument:

The structure of the smart PDF 2D barcode fingerprint ID card identifier has flexible and diverse forms: it can be used in desktop, vehicle and handheld. When the card is tested, the card only needs to be inserted into the identifier card, and then a finger is pressed in the fingerprint collection window, and the back and forth operation process only takes a few seconds, and the operation is very simple and fast. If both of the verified fingers have been injured or have no fingerprints at all (such as disability), the photos displayed on the color LCD screen (from the photo data stored in the two-dimensional barcode on the card), photos printed on the front of the card, and The comparison of the three appearances of the card people determines the authenticity of the card, thereby avoiding the problem that the card cannot be checked normally under special circumstances. The invention is powered by a high-energy battery and can be carried anywhere at will, so mobility is not limited by conditions. The present invention uses a PC / 104 embedded CPU as a hardware platform, and integrates two-dimensional bar code reading, fingerprint collection, and full-automatic comparison to an integrated identification device. Can identify the authenticity of PDF two-dimensional barcode fingerprint ID card through fingerprints, and can process two-dimensional PDF two-dimensional barcode fingerprint stored in one PDF two-dimensional barcode fingerprint ID card at the same time. ID. Industrial applicability

The present invention combines software for decryption, decompression, and full-automatic fingerprint recognition, display of text information such as photo and card verification results through the design of the hardware structure, and these software and hardware functional modules constitute a powerful intelligent PDF card ID document recognition. instrument. The instrument has the characteristics of three strong (strong computing, control, and communication functions), fast (instrument checking speed is fast), two provinces (saving power, energy saving, space saving, small size). It can be applied to various occasions where accurate identification is required, such as public security, customs, banks, post offices, test rooms, hotels, etc., to verify the authenticity of PDF 2D barcode card fingerprint ID. This provides a practical device for the complete anti-counterfeiting of personal identity documents such as residence ID, temporary residence permit, military officer ID, driver's license, and passport.

The invention also has other functions:

It can be used as a device for fingerprint collection, feature extraction, information encryption, and information encoding for making smart anti-counterfeit PDF two-dimensional barcode card identification documents; through a parallel port with a scanner and a camera Communication with other image input devices can provide functions for image input and compression processing. Supports LAN and WAN network protocols, and configures corresponding application software to handle various transactions, receive and transmit communications and information. Retrieval, etc. Various types of blacklists (wanted criminals, suspects) can be queried (fingerprint, name, photo, etc.).

Claims

A smart anti-counterfeit PDF card identity document identifier, comprising an operation keyboard and a liquid crystal display, characterized in that it further comprises a text information such as decryption, decompression and full-automatic fingerprint identification, display of photos and card inspection results, etc. A central processing unit, a PDF two-dimensional barcode reader, a fingerprint reader, an instrument main board, and a communication interface; the central processing unit includes a 32-bit embedded CPU chip, a data storage chipset, a program storage chipset, a timing Logic control chipset and other devices, the communication interface is a dedicated expansion interface board, which includes an ECP parallel communication interface, three serial communication interfaces (one connected to the WAN through a MODEM, and the other connected to a PDF two-dimensional barcode reader, one RS485 constitutes a serial communication interface of a local area network), a status indicator driving interface, and the instrument main board is composed of an AC / DC power module, a keyboard decoding module, an encryption module, an optical fingerprint scanning interface circuit, and a small-screen LCD interface circuit. The smart anti-counterfeit PDF ID card identifier according to claim 1, wherein the fingerprint reader is an optical fingerprint sensor (containing an image capture card that complies with the PC / 104 standard) or a CMOS fingerprint sensor.