CN211349395U

CN211349395U - Novel special compatible reader-writer of reading identity card information of track traffic

Info

Publication number: CN211349395U
Application number: CN201922170032.7U
Authority: CN
Inventors: 郑晓佳; 谭宁; 周剑; 向锡坚
Original assignee: Guangzhou Pci Data Service Co ltd
Current assignee: Guangzhou Pci Data Service Co ltd
Priority date: 2019-12-06
Filing date: 2019-12-06
Publication date: 2020-08-25
Anticipated expiration: 2029-12-06

Abstract

The utility model discloses a novel special compatible reader-writer of reading ID card information of track traffic, including RF module, SAM module that are connected respectively with the CPU module, the SAM module includes CD4051, SAM draw-in groove, crystal oscillator switching control circuit, and the RF module includes RF interface circuit, the 13.56MHz radio frequency circuit of RC663, still includes the ID card key safety module who is connected with the CPU module, and ID card key safety module includes SAM _ V interface communication circuit and UART interface communication circuit; the CPU module sends an instruction of an identity card safety module through the UART interface communication circuit, then the CPU module interacts the instruction sent by the SAM _ V interface communication circuit with the identity card on the RF module through the SAM _ V interface communication circuit, and information such as a photo and a fingerprint of the identity card is acquired from the UART interface communication circuit until the interaction is completed.

Description

Novel special compatible reader-writer of reading identity card information of track traffic

Technical Field

The utility model relates to a novel special compatible reader-writer of reading identity card information of track traffic.

Background

The traditional special reader-writer for rail transit cannot read information such as photos and fingerprints in the identity card, and the existing TVM and AGM increase the reading requirement for the information such as the photos and the fingerprints in the identity card in order to enrich the diversified payment scenes. The requirements can be met only by using a traditional special reader for the identity card at TVM and AGM, the cost is increased by the design, one more antenna position is occupied, the installation is inconvenient, the system design and the control efficiency are lower, and the poor card swiping experience is brought to customers.

Disclosure of Invention

In order to solve the technical problem, the utility model aims at providing a novel special compatible reader-writer of reading ID card information of track traffic.

In order to solve the technical problem, the utility model adopts the following technical scheme:

the utility model provides a novel special compatible reader-writer of reading ID card information of track traffic, includes the RF module, the SAM module of being connected respectively with the CPU module, the SAM module includes CD4051, SAM draw-in groove, crystal oscillator switching control circuit, the RF module includes the 13.56MHz radio frequency circuit of RF interface circuit, RC663, its characterized in that: the identity card key security module is connected with the CPU module and comprises an SAM _ V interface communication circuit and a UART interface communication circuit; the CPU module sends an identity card security module instruction through the UART interface communication circuit, then the CPU module interacts the instruction sent by the SAM _ V interface communication circuit with the identity card on the RF module through the SAM _ V interface communication circuit, and information such as a photo and a fingerprint of the identity card is obtained from the UART interface communication circuit until the interaction is completed.

Further, the crystal oscillator switching control circuit is used for 1-amplification and 8-generation of a clock signal of the SAM card 3.5712MHZ or 5MHZ, and the CD4051 is used for gating an IO signal for generation of the SAM card.

Further, the CPU module comprises an i.mx6dy processor, a Nandflash and an SDRAM.

Compared with the prior art, the utility model discloses a beneficial technological effect:

an identity card security key module is added to the reader-writer, and the reader-writer which integrates rail transit ticket card transaction and information reading such as identity card photos and fingerprints is designed through an external unified antenna. The condition that TVM and AGM pay in a diversified manner can be met, a customer can swiftly swipe a card through an externally unified antenna, and the cost and the installation difficulty of the system are reduced.

Drawings

The present invention will be further explained with reference to the following description of the drawings.

Fig. 1 is a schematic block diagram of a reader/writer according to the present invention;

FIG. 2 is a schematic diagram of RF module control;

FIG. 3 is a control schematic diagram of the SAM module;

FIG. 4 is a schematic diagram of identity card key security module control;

1-a CPU module; a 2-RF module; 3-SAM module; 4-identity card key security module.

Detailed Description

As shown in fig. 1 to 4, a novel reader-writer compatible with reading identity card information specially used for rail transit comprises an RF module 2, an SAM module 3 and an identity card key security module 4 respectively connected with a CPU module 1, wherein the SAM module 3 comprises a CD4051, an SAM card slot and a crystal oscillator switching control circuit, the RF module 2 comprises an RF interface circuit and a 13.56MHz radio frequency circuit of RC663, and the identity card key security module 4 comprises an SAM _ V interface communication circuit and a UART interface communication circuit; the CPU module 1 sends an identity card security module instruction through the UART interface communication circuit, then the CPU module interacts the instruction sent by the SAM _ V interface communication circuit with the identity card on the RF module through the SAM _ V interface communication circuit, and obtains information such as a photo and a fingerprint of the identity card from the UART interface communication circuit until the interaction is completed.

The crystal oscillator switching control circuit is used for 1-amplification and 8-generation of SAM card 3.5712MHZ or 5MHZ clock signals, and the CD4051 is used for gating IO signals for generating the SAM card. The CPU module comprises an i.mx6dy processor, a Nandflash and an SDRAM.

The SAM module stores keys of ticket cards related to rail transit and guarantees the transaction safety of the ticket cards. And the RF module is used for carrying out instruction interaction with the ticket card or the identity card. The identity card key security module is used for storing the identity card key and ensuring the security of obtaining information such as identity card photos, fingerprints and the like. The reader-writer selects the corresponding SAM card module or the identity card key security module for interaction according to the read ticket card type or the read identity card, and therefore the transaction and the identity card information acquisition are guaranteed to be completed smoothly.

The working principle is as follows:

when the rail transit ticket card is placed on the unified antenna board, the reader-writer identifies the rail transit ticket card according to the ticket card type and the ticket card file structure, the CPU controls the SAM _ SEL0, SAM _ SEL1 and SAM _ SEL2 pins, selects the corresponding SAM card slot, and switches the clock frequency required by the SAM card to be 3.5712MHZ or 5 MHZ. And organizing related data according to the rail transit ticket business rules to interact with the SAM card and the ticket card to complete the transaction.

When the identity card is placed on the unified antenna board, the reader-writer identifies the identity card according to the identity card type and the RF related instruction for transmitting the identification card, the CPU transmits information instructions for acquiring an identity card photo, a fingerprint and the like to the UART3_ TX and the UART3_ RX, and then the CPU interacts the instruction transmitted by the SAM _ V interface of the identity card key security module with the identity card on the RF module through the SAM _ V interface of the identity card key security module until the interaction is completed, and acquires the information of the identity card photo, the fingerprint and the like from the UART3_ TX and the UART3_ RX interfaces.

The design of the novel reader-writer for the rail transit, which is compatible with reading of the identity card information, meets the requirement that a customer can quickly swipe a card through an external unified antenna under the scene of diversified payment by the TVM and the AGM, and reduces the cost and the installation difficulty of the system.

The above-mentioned embodiments are only intended to describe the preferred embodiments of the present invention, but not to limit the scope of the present invention, and those skilled in the art should also be able to make various modifications and improvements to the technical solution of the present invention without departing from the spirit of the present invention, and all such modifications and improvements are intended to fall within the scope of the present invention as defined in the appended claims.

Claims

1. The utility model provides a novel special compatible reader-writer of reading ID card information of track traffic, includes the RF module, the SAM module of being connected respectively with the CPU module, the SAM module includes CD4051, SAM draw-in groove, crystal oscillator switching control circuit, the RF module includes the 13.56MHz radio frequency circuit of RF interface circuit, RC663, its characterized in that: the identity card key security module is connected with the CPU module and comprises an SAM _ V interface communication circuit and a UART interface communication circuit; the CPU module sends an identity card security module instruction through the UART interface communication circuit, then the CPU module interacts the instruction sent by the SAM _ V interface communication circuit with the identity card on the RF module through the SAM _ V interface communication circuit, and obtains the photo and fingerprint information of the identity card from the UART interface communication circuit until the interaction is completed.

2. The novel reader-writer for compatible reading of ID card information specially used for rail transit according to claim 1, characterized in that: the CPU module comprises an i.mx6dy processor, a Nandflash and an SDRAM.