Multifunctional read-write terminal with Bluetooth communication

Abstract

The utility model belongs to the technical field of card reading equipment, and particularly relates to a multifunctional read-write terminal with Bluetooth communication, which comprises a main control module, a Bluetooth module, a universal serial bus (USB) expansion module, a magnetic stripe card read-write module, a non-contact integrated circuit (IC) card module and a contact IC card module, the main control module is respectively connected with the Bluetooth module, the USB expansion module, the magnetic stripe card read-write module, the non-contact IC card module and the contact IC card module; the USB expansion module is used for expanding an external interface, and the USB expansion module and / or the Bluetooth module are / is connected with external equipment. According to the terminal provided by the utility model, the USB module and the Bluetooth module are used for external communication, wired and wireless communication modes are supported, the application scene of the terminal is expanded, and the requirement of processing services inside and outside the cabinet can be met at the same time.

Description

Technical Field

[0001] The utility model belongs to the technical field of card reading devices, and particularly relates to a multifunctional reading and writing terminal with Bluetooth communication. Background Art

[0002] The statements in this part only provide background technical information related to the utility model, and do not necessarily constitute prior art.

[0003] With the popularization of mobile devices such as mobile phones and tablets, the card reader field is developing towards convenience and mobility. Multifunctional card reader devices with wireless communication are bound to become the mainstream.

[0004] A multifunctional reading and writing terminal is a card reading device with Bluetooth wireless communication function, which supports the reading and writing of various types of contact / non-contact IC cards and magnetic stripe cards, such as second-generation resident identity cards, social security cards, bank cards, etc., and also has barcode scanning and fingerprint recognition functions.

[0005] At present, the card types supported by card reader devices on the market are relatively single, and the vast majority are fixed devices, which only support wired connection for use at the counter. In order to read and write multiple types of cards, users often need to connect multiple devices at the same time, which will inevitably limit out-of-counter services such as on-site handling.

[0006] Moreover, considering other card reading devices on the market, in order to realize the reading and writing of multiple types of cards, multiple card reading devices need to be connected to an external terminal. Usually, these devices are from different manufacturers, and the communication protocols they use are also different, which is prone to compatibility problems between the external terminal device and a certain card reading device as well as various card reading devices. At the same time, users need to adapt to each device separately during actual use, which undoubtedly increases the user's usage cost. Content of the Utility Model

[0007] To overcome the deficiencies of the above-mentioned prior art, the utility model provides a multifunctional reading and writing terminal with Bluetooth communication.

[0008] To achieve the above object, one or more embodiments of the utility model provide the following technical solutions:

[0009] The first aspect of the utility model provides a multifunctional reading and writing terminal with Bluetooth communication, including: a main control module, a Bluetooth module, a USB expansion module, a magnetic stripe card reading and writing module, a non-contact IC card module, and a contact IC card module; the main control module is respectively connected to the Bluetooth module, the USB expansion module, the magnetic stripe card reading and writing module, the non-contact IC card module, and the contact IC card module;

[0010] The USB expansion module is used to expand the external interface, and the USB expansion module and / or the Bluetooth module are respectively connected to external devices.

[0011] Further, it also includes a fingerprint recognition module for collecting fingerprint information, and the fingerprint recognition module is electrically connected to the USB extension module and the main control module respectively;

[0012] The fingerprint information collected by the fingerprint recognition module is directly transmitted to the host computer through the USB extension module, or indirectly transmitted to the host computer through the USB extension module / Bluetooth module after being processed by the main control module.

[0013] Further, it also includes a bar code scanning module for collecting image information, and the bar code scanning module is electrically connected to the USB extension module and the main control module respectively;

[0014] The bar code information collected by the bar code scanning module is directly transmitted to the host computer through the USB extension module, or indirectly transmitted to the host computer through the USB extension module / Bluetooth module after being processed by the main control module.

[0015] Further, the USB extension module includes a TYPE-C interface, a first USB extender, a second USB extender, a first external USB interface and a second external USB interface;

[0016] The first USB extender is respectively connected to the second USB extender, the TYPE-C interface, the bar code scanning module, the first external USB interface and the main control module; the second USB extender is respectively connected to the second external USB interface and the fingerprint recognition module.

[0017] Further, the non-contact IC card module includes a security module SAM, a radio frequency antenna and a non-contact IC card reading and writing unit; the non-contact IC card reading and writing unit includes a radio frequency chip, a radio frequency CPU and a radio frequency matching circuit;

[0018] The main control module is electrically connected to the radio frequency CPU, the radio frequency CPU is respectively electrically connected to the security module SAM and the radio frequency chip, and the radio frequency chip is electrically connected to the radio frequency antenna through the radio frequency matching circuit.

[0019] Further, the contact IC card module includes a PSAM card unit, an IC card selection and control unit and a contact IC card unit;

[0020] The main control module is respectively electrically connected to the PSAM card unit, the IC card selection and control unit and the contact IC card reading and writing unit, and the PSAM card unit and the contact IC card reading and writing unit are respectively connected to the IC card selection and control unit.

[0021] Further, the IC card selection and control unit includes an 8-channel analog switch chip and a NAND gate chip, and the 8-channel analog switch chip and the NAND gate chip are respectively connected to the main control module, the contactless IC card reading and writing unit, and the PSAM card unit.

[0022] Further, it further includes a security encryption module, and the security encryption module communicates with the main control module through UART and is used for storing encryption private keys and processing encryption and decryption information.

[0023] Further, it further includes a storage module and an indicator light module. The storage module communicates with the main control module through SPI and is used for storing various parameter configuration information of the device; the indicator light module is electrically connected to the Bluetooth module and the main control module respectively.

[0024] Further, the magnetic stripe card reading and writing module includes a magnetic stripe card decoding chip, a magnetic head, and a magnetic stripe card matching circuit; the main control module is electrically connected to the magnetic stripe card decoding chip, and the magnetic stripe card decoding chip is electrically connected to the magnetic head through the magnetic stripe card matching circuit.

[0025] The above one or more technical solutions have the following beneficial effects:

[0026] (1) The terminal provided by the present utility model communicates externally using the USB expansion module and the Bluetooth module, supports two communication methods of wired and wireless, expands the application scenarios of the terminal, and can meet the needs of processing business inside and outside the cabinet at the same time; meanwhile, 2 external USB interfaces are reserved to facilitate users to expand USB devices.

[0027] (2) The terminal provided by the present utility model can support multiple methods such as fingerprint, second-generation ID card, and social security card for identity verification, and supports the reading and writing of multiple types of cards such as contactless IC cards, non-contact IC cards, and magnetic stripe cards, and also has a barcode scanning function, with a wide range of application scenarios. At the same time, it can perform corresponding security encryption processing on data transmission to improve the security level.

[0028] (3) The power supply method of the terminal provided by the present utility model is flexible and variable. The whole machine is connected to an external power supply device through a TYPE-C interface and can be powered by multiple methods such as a power adapter, a computer, and a mobile power supply.

[0029] The advantages of the additional aspects of the present utility model will be partially given in the following description, partially become obvious from the following description, or be understood through the practice of the present utility model. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] The specification drawings constituting a part of the present utility model are used to provide a further understanding of the present utility model. The schematic embodiments of the present utility model and their descriptions are used to explain the present utility model and do not constitute an improper limitation to the present utility model.

[0031] Figure 1 This is the schematic diagram of a multifunctional reading and writing terminal with Bluetooth communication for the first embodiment.

[0032] Figure 2 This is the schematic diagram of the main control module circuit for the first embodiment.

[0033] Figure 3 This is the schematic diagram of the Bluetooth module circuit for the first embodiment.

[0034] Figure 4 This is the schematic diagram of the interface socket circuit of the indicator light module for the first embodiment.

[0035] Figure 5 This is the schematic diagram of the interface socket circuit of the fingerprint recognition module for the first embodiment.

[0036] Figure 6 This is the schematic diagram of the interface socket circuit of the barcode scanning module for the first embodiment.

[0037] Figure 7 Among them, (a) and (b) are the schematic diagrams of the USB expansion module circuit for the first embodiment.

[0038] Figure 8 This is the schematic diagram of the interface socket circuit of the non-contact IC card module for the first embodiment.

[0039] Figure 9 This is the schematic diagram of the interface socket circuit of the contact IC card unit for the first embodiment.

[0040] Figure 10 Among them, (a) and (b) are respectively the schematic diagrams of the IC card selection control unit circuit for the first embodiment.

[0041] Figure 11 Among them, (a), (b), and (c) are the schematic diagrams of the PSAM card unit circuit for the first embodiment.

[0042] Figure 12 Among them, (a) and (b) are the schematic diagrams of the magnetic stripe card reading and writing module circuit for the first embodiment.

[0043] Figure 13 This is the schematic diagram of the security encryption chip circuit for the first embodiment.

[0044] Figure 14 This is the schematic diagram of the storage chip circuit for the first embodiment. Specific implementation mode

[0045] The following further describes the present utility model in conjunction with the drawings and embodiments.

[0046] Embodiment 1

[0047] As Figures 1 to 3As shown in the figure, the utility model provides a multifunctional reading and writing terminal with Bluetooth communication, including: a main control module, a Bluetooth module, a USB expansion module, a magnetic stripe card reading and writing module, a non-contact IC card reading and writing module, and a contact IC card reading and writing module; the main control module is respectively connected to the Bluetooth module, the USB expansion module, the magnetic stripe card reading and writing module, the non-contact IC card reading and writing module, and the contact IC card reading and writing module;

[0048] The non-contact IC card reading and writing module is used to realize the reading and writing of non-contact IC cards, and the contact IC card reading and writing module is used to realize the reading and writing of contact IC cards; the magnetic stripe card reading and writing module is used to realize the reading and writing of magnetic stripe cards; the USB expansion module and / or the Bluetooth module are respectively used to connect to external terminals for data interaction.

[0049] The USB expansion module serves as the USB communication interface of the multifunctional reading and writing terminal to realize data interaction with external devices, and at the same time can serve as the power input of the whole machine to realize the power supply of the multifunctional reading and writing terminal.

[0050] The multifunctional reading and writing terminal provided in this embodiment can perform wired communication and wireless communication with external terminals through the USB expansion module and / or the Bluetooth module respectively, realizing the application in the in-cabinet scenario and the out-of-cabinet scenario.

[0051] Specifically: In-cabinet scenario (wired communication): The USB expansion module is wired to an external terminal to supply power to the whole machine, and this terminal can perform data interaction with the external terminal through the USB communication method. Out-of-cabinet scenario (wireless communication): The USB expansion module is connected to an external power supply to supply power to the whole machine, and this terminal performs data interaction with the external terminal wirelessly through the Bluetooth module.

[0052] As a further technical solution, the chip structure of the main control module (main control CPU) adopted in this embodiment is as Figure 2 shown. The main control module adopts a low-power CPU with a 32-bit ARM core, and the model of the main control chip can be selected according to needs and will not be elaborated here.

[0053] As a further technical solution, it further includes an indicator light module, and the indicator light module is electrically connected to the Bluetooth module and the main control module respectively; the Bluetooth module circuit is as Figure 3 shown, and the indicator light module interface socket circuit is as Figure 4 shown.

[0054] The UART interface (pin 20, pin 21) of the Bluetooth module is connected to the UART 3 interface (PC10, PC11) of the main control CPU, the LED interface (pin 28) of the Bluetooth module is connected to pin 6 of the indicator light circuit, and pin 4 (WORK LED) and pin 5 (STATE LED) of the indicator light circuit are connected to the indicator light control interface (PC7 and PC6) of the main control CPU.

[0055] In this embodiment, short - range wireless communication of the terminal is realized by setting a Bluetooth module, and the corresponding indicator light changes after the multi - functional reading and writing terminal establishes a Bluetooth connection with an external terminal device. For example, the indicator light turns off when Bluetooth is off, blinks when Bluetooth is not connected, and stays on when Bluetooth is connected. The status of the indicator light can be configured according to user needs. The terminal provided in this embodiment supports the Bluetooth device connection function, realizing the expansion of the terminal application scenario.

[0056] As a further technical solution, as Figure 5 shown, it further includes a fingerprint recognition module. The fingerprint recognition module is used to collect fingerprint information and is electrically connected to the USB expansion module and the main control module respectively. The collected fingerprint information can be directly transmitted to the host computer through the USB expansion module, or transferred through the main control module and then transmitted to the host computer through the USB expansion module / Bluetooth module; users can freely choose 2 communication methods according to their application scenarios.

[0057] Specifically: When the multi - functional reading and writing terminal is wirelessly connected to an external terminal through the Bluetooth module, the main control CPU transmits the fingerprint information collected by the fingerprint recognition module to the external terminal through the Bluetooth module.

[0058] When the multi - functional reading and writing terminal is wired - connected to an external terminal through the USB expansion module, on the one hand, the fingerprint information collected by the fingerprint recognition module can be directly transmitted to the external terminal through the USB expansion module; on the other hand, the collected fingerprint information is first transmitted to the main control CPU, and then transmitted to the external terminal by the main control CPU through the USB expansion module.

[0059] Specifically: The USB interface (pins 2 and 3) of the fingerprint recognition module is electrically connected to the DM2 interface and DP2 interface of the second USB expander; the UART interface (pins 5 and 6) of the fingerprint recognition module is electrically connected to the USART 1 interface (PA2 and PA3) of the main control chip.

[0060] In this embodiment, the fingerprint recognition module is electrically connected to the USB expansion module and the main control CPU, enabling users to obtain the collected fingerprint information in two ways: USB or Bluetooth.

[0061] As a further technical solution, as Figure 6As shown, it further includes a barcode scanning module, which is used to collect and analyze the information in the one-dimensional code / two-dimensional code image; the barcode scanning module is electrically connected to the USB expansion module and the main control module respectively. The scanned one-dimensional code / two-dimensional code information can be directly transmitted to the host computer through the USB expansion module, or relayed through the main control module and then transmitted to the host computer through the USB expansion module / Bluetooth module. The two communication methods can be selected according to user needs. The transmission paths of the fingerprint information and the barcode information are the same and will not be elaborated here.

[0062] Specifically: the USB interface (pin 5 and pin 6) of the barcode scanning module is electrically connected to the first USB expander (DM2 interface and DP2 interface); the UART interface (pin 8 and pin 7) of the barcode scanning module is electrically connected to the UART 4 interface (PC12 and PD2) of the main control chip.

[0063] In this embodiment, the barcode scanning module is electrically connected to the USB expansion module and the main control CPU, enabling the user to obtain the scanned one-dimensional code / two-dimensional code information through two methods: USB or Bluetooth.

[0064] As a further technical solution, the USB expansion module includes a TYPE-C interface, a first USB expander, a second USB expander, a first external USB interface, and a second external USB interface;

[0065] The first USB expander is connected to the TYPE-C interface, the barcode scanning module, the first USB interface, and the main control module respectively; the second USB expander is connected to the first USB expander, the second USB interface, and the fingerprint recognition module respectively; the TYPE-C interface is used to connect external terminal devices such as a host computer or external power supply devices such as a mobile power supply.

[0066] The chip circuits of the first USB expander and the second USB expander are respectively as Figure 7 shown in (a) and (b). This terminal expands the USB port by setting a USB expander, enabling other devices to be connected to external terminal devices such as a host computer through this terminal.

[0067] Specifically: the interfaces DM1 and DP1 of the first USB expander are electrically connected to the USB 0 interface (PA11 and PA12) of the main control chip; the interfaces DM3 and DP3 of the first USB expander are respectively electrically connected to the interfaces DMU and DPU of the second USB expander.

[0068] The multi-functional reading and writing terminal provided by the utility model provides a total of 3 USB ports and 1 Bluetooth port for external terminals. The 3 USB ports include the USB port of the main control CPU, the USB port of the fingerprint acquisition module, and the USB port of the barcode scanning module. Among them, the USB port of the main control CPU and the Bluetooth port can realize the communication of all functions of this terminal. The USB port of the main control CPU can also be customized according to user needs to fundamentally eliminate the compatibility problems between multiple devices and between the device and the external terminal. At the same time, the USB port of the fingerprint acquisition module is a port with a dedicated protocol to meet the user's security requirements in special cases.

[0069] As a further technical solution, the total power supply inlet of the multi-functional reading and writing terminal in this embodiment is a TYPE-C interface, which provides specific levels for different components through a power conversion circuit, and the power supplies of each component are controlled by the main control CPU, and can be turned on and off for a certain module (such as Bluetooth, fingerprint, barcode) separately to reduce standby power consumption.

[0070] As a further technical solution, the non-contact IC card module includes a security module SAM, a radio frequency antenna, and a non-contact IC card reading and writing unit; the non-contact IC card reading and writing unit includes a radio frequency chip, a radio frequency CPU, and a radio frequency matching circuit.

[0071] The circuit diagram of the interface socket of the non-contact IC card module is as Figure 8 shown. The main control CPU is electrically connected to the radio frequency CPU. The radio frequency CPU is respectively electrically connected to the security module SAM and the radio frequency chip. The radio frequency chip is electrically connected to the radio frequency antenna through a radio frequency matching circuit; the radio frequency antenna is a single antenna for realizing information interaction of various non-contact IC cards and second-generation ID cards.

[0072] The radio frequency CPU and the radio frequency chip communicate in the form of SPI. The radio frequency CPU drives the radio frequency antenna through the radio frequency chip to interact with various non-contact IC cards or second-generation ID cards; at the same time, the radio frequency CPU is connected to the security module SAM in forms such as UART and IIC for decoding and processing of second-generation resident ID card information; the main control CPU communicates with the radio frequency CPU to realize information interaction of various non-contact IC cards and second-generation ID cards.

[0073] As a further technical solution, the contact IC card module includes a PSAM card unit, an IC card selection and control unit, and a contact IC card reading and writing unit;

[0074] The circuit diagram of the interface socket of the contact IC card reading and writing unit is as Figure 9As shown, the main control module is electrically connected to the PSAM card unit, the IC card selection and control unit, and the contactless IC card reading and writing unit respectively. The PSAM card unit and the contactless IC card reading and writing unit are respectively connected to the IC card selection and control unit; the contactless IC card reading and writing unit and the PSAM card unit implement the reading and writing control of each contactless IC card.

[0075] As Figure 10 shown in (a) and (b) of [reference], the IC card selection and control unit includes an 8-channel analog switch chip and a NAND gate chip. The 8-channel analog switch chip and the NAND gate chip are respectively connected to the main control CPU and the contactless IC card reading and writing unit.

[0076] The PSAM card unit in this embodiment includes a total of 3 PSAM card slots. During actual use, the user inserts the PSAM card. The 3 PSAM card slots and the surrounding circuit diagrams are respectively Figure 11 shown in (a), (b), and (c) of [reference].

[0077] The IC card selection and control unit is used to select and control 3 PSAMs and the contactless IC card, and controls the single-chip microcomputer to communicate with a certain card and the main control CPU through the analog switch and the NAND gate.

[0078] Specifically: Pin 29 (PB10), pin 61 (PA8), pin 62 (PB9), and pin 55 (PB3) of the main control CPU are electrically connected to pin 3 (Z), pin 9 (S2), pin 11 (S0), and pin 10 (S1) of the 8-channel analog switch chip in sequence; pin 33 (PB12) of the main control CPU is electrically connected to pin 1 and pin 2 (1A and 1B) of the NAND gate chip; pin 30 (PB11) and pin 35 (PB14) of the main control CPU are electrically connected to pin 5 and pin 10 (2B and 3B) of the NAND gate chip.

[0079] Pin 3 of the contactless IC card reading and writing unit is electrically connected to pin 13 of the 8-channel analog switch chip, and pin 10 of the contactless IC card reading and writing unit is electrically connected to pin 11 of the NAND gate chip. Pins 4, 7, 2, 8, 6, 5, and 1 of the contactless IC card reading and writing unit are electrically connected to PB0, PB1, PA0, PB4, PB5, PB8, and PB13 of the main control CPU in sequence.

[0080] Pin 7 of PSAM1, PSAM2, and PSAM3 is electrically connected to pins 14, 15, and 12 of the 8-channel analog switch chip in sequence; pin 3 of PSAM1, PSAM2, and PSAM3 is electrically connected to pins 3 and 4 of the NAND gate chip; pin 2 of PSAM1 is electrically connected to the PC8 interface of the main control CPU, pin 2 of PSAM2 is electrically connected to the PC9 interface of the main control CPU, and pin 2 of PSAM3 is electrically connected to the PC15 interface of the main control CPU.

[0081] As a further technical solution, as shown in Figure 12 (a) and (b) of, the magnetic stripe card reading and writing module includes a magnetic stripe card decoding chip, a magnetic head, and a magnetic stripe card matching circuit; the main control CPU is electrically connected to the magnetic stripe card chip; the interfaces PA4, PC5, PC15, PC14, and PC4 of the main control CPU are electrically connected to pins 9, 10, 11, 12, and 7 of the magnetic stripe card chip in sequence. The magnetic stripe card chip is electrically connected to the magnetic stripe card matching circuit; the magnetic stripe card matching circuit is electrically connected to the magnetic head; the circuit diagram of the magnetic head connector is as shown in Figure 12 (b) of, the main control CPU communicates with the magnetic stripe card reading and writing module to realize magnetic stripe card data transmission processing and decoding control.

[0082] As a further technical solution, as shown in Figure 13 , it further includes a security encryption module. The security encryption module communicates with the main control module through UART and is used to store encryption private keys and process specific encryption and decryption information.

[0083] In this embodiment, the security encryption module includes a security encryption chip. The UART 0 interface (GP8 and GP9) of the security encryption chip is electrically connected to the USART 0-S interface (PB6 and PB7) of the main control CPU. The model of the security encryption chip can be selected according to needs and will not be elaborated here.

[0084] The SAM encryption module of the contactless IC card is dedicated to the information interaction of the second-generation ID card; while the security encryption module directly connected to the single-chip microcomputer is used to store keys and calculate a series of asymmetric encryption algorithms, and is usually used for financial or medical insurance services.

[0085] As a further technical solution, as shown in Figure 14 , it further includes a storage module. The SPI0 interface (pins 1, 2, 5, and 6) of the storage module is electrically connected to the SPI 0 interface (PA1, PA5, PA6, and PA7) of the main control CPU in sequence.

[0086] The storage module communicates with the main control module in SPI form and is used to store various parameter configuration information of the device, and realize the configuration of the magnetic stripe card track output format, barcode scanning output format, and fingerprint output format.

[0087] The multi-functional reading and writing terminal with Bluetooth communication provided by the present utility model is a device integrating barcode scanning, fingerprint collection, second-generation ID card reading, contact IC card reading and writing, non-contact IC card reading and writing, and magnetic stripe card reading and writing. It is powered by USB (TYPE-C interface) and can communicate with computers, mobile devices, etc. through USB and / or Bluetooth. The power supply interface and the USB communication interface are the same TYPE-C interface. It cooperates with relevant software to realize the reading of various composite applications such as cards, and is suitable for users in various industries such as banks, insurance companies, securities companies, human resources and social security departments, and medical insurance departments that apply the above business functions.

[0088] The terminal provided by the present utility model has two usage modes:

[0089] The multi-functional reading and writing terminal is powered on by connecting to an external terminal through the USB port. The external terminal sends relevant instructions to the multi-functional reading and writing terminal through the USB channel. After receiving the instructions, the multi-functional reading and writing terminal processes each component (such as second-generation ID card, non-contact IC card, contact IC card, magnetic stripe card, barcode, fingerprint, etc.) and returns the obtained data to the computer; or, after connecting to the computer through the USB port, the barcode and magnetic stripe card information can directly upload the data to the computer through the USB channel (plug and play).

[0090] The multi-functional reading and writing terminal is powered on by connecting to an external power supply device through the USB port. The computer or other terminal with Bluetooth function is Bluetooth-connected to the multi-functional reading and writing terminal, and relevant instructions are sent to the multi-functional reading and writing terminal through the Bluetooth channel. After receiving the instructions, the multi-functional reading and writing terminal processes each component (such as second-generation ID card, non-contact IC card, contact IC card, magnetic stripe card, barcode, fingerprint, etc.) and returns the obtained data to the computer or other terminal with Bluetooth function.

[0091] Although the specific implementation manners of the present utility model are described above in conjunction with the accompanying drawings, it is not a limitation to the protection scope of the present utility model. Those skilled in the art should understand that based on the technical solutions of the present utility model, various modifications or deformations that can be made by those skilled in the art without creative efforts are still within the protection scope of the present utility model.

Claims

1. A multifunctional reading and writing terminal with Bluetooth communication, characterized in that It includes: a main control module, a Bluetooth module, a USB expansion module, a magnetic stripe card reading and writing module, a non-contact IC card module, and a contact IC card module; the main control module is respectively connected to the Bluetooth module, the USB expansion module, the magnetic stripe card reading and writing module, the non-contact IC card module, and the contact IC card module; The USB expansion module includes a TYPE-C interface, a first USB expander, a second USB expander, a first external USB interface, and a second external USB interface; The USB expansion module is used to expand external interfaces, and the USB expansion module and / or the Bluetooth module are respectively connected to external devices; The first USB expander is respectively connected to the second USB expander, the TYPE-C interface, the barcode scanning module, the first external USB interface, and the main control module; the second USB expander is respectively connected to the second external USB interface and the fingerprint recognition module.

2. The multifunctional reading and writing terminal with Bluetooth communication according to claim 1, characterized in that It further includes a fingerprint recognition module for collecting fingerprint information, and the fingerprint recognition module is electrically connected to the USB expansion module and the main control module respectively; The fingerprint information collected by the fingerprint recognition module is directly transmitted to the host computer through the USB expansion module, or indirectly transmitted to the host computer through the USB expansion module / Bluetooth module after being processed by the main control module.

3. The multifunctional reading and writing terminal with Bluetooth communication according to claim 2, characterized in that It further includes a barcode scanning module for collecting image information, and the barcode scanning module is electrically connected to the USB expansion module and the main control module respectively; The barcode information collected by the barcode scanning module is directly transmitted to the host computer through the USB expansion module, or indirectly transmitted to the host computer through the USB expansion module / Bluetooth module after being processed by the main control module.

4. A multifunctional reading and writing terminal with Bluetooth communication according to claim 1, characterized in that The non-contact IC card module includes a security module SAM, a radio frequency antenna, and a non-contact IC card reading and writing unit; the non-contact IC card reading and writing unit includes a radio frequency chip, a radio frequency CPU, and a radio frequency matching circuit; The main control module is electrically connected to the radio frequency CPU, the radio frequency CPU is respectively electrically connected to the security module SAM and the radio frequency chip, and the radio frequency chip is electrically connected to the radio frequency antenna through the radio frequency matching circuit.

5. A multifunctional reading and writing terminal with Bluetooth communication according to claim 1, characterized in that, The contact IC card module includes a PSAM card unit, an IC card selection and control unit, and a contact IC card unit; The main control module is respectively electrically connected to the PSAM card unit, the IC card selection and control unit, and the contact IC card reading and writing unit, and the PSAM card unit and the contact IC card reading and writing unit are respectively connected to the IC card selection and control unit.

6. The multifunctional reading and writing terminal with Bluetooth communication according to claim 5, characterized in that, The IC card selection and control unit includes an 8-channel analog switch chip and a NAND gate chip, and the 8-channel analog switch chip and the NAND gate chip are respectively connected to the main control module, the contact IC card reading and writing unit, and the PSAM card unit.

7. A multifunctional reading and writing terminal with Bluetooth communication according to claim 1, characterized in that, It further includes a security encryption module, and the security encryption module communicates with the main control module through UART, and is used to store encryption private keys and process encryption and decryption information.

8. A multifunctional reading and writing terminal with Bluetooth communication according to claim 1, characterized in that, It further includes a storage module and an indicator light module, the storage module communicates with the main control module through SPI, and is used to store various parameter configuration information of the device; the indicator light module is respectively electrically connected to the Bluetooth module and the main control module.

9. A multifunctional reading and writing terminal with Bluetooth communication according to claim 1, characterized in that, The magnetic stripe card reading and writing module includes a magnetic stripe card decoding chip, a magnetic head, and a magnetic stripe card matching circuit; the main control module is electrically connected to the magnetic stripe card decoding chip, and the magnetic stripe card decoding chip is electrically connected to the magnetic head through the magnetic stripe card matching circuit.

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