POS machine with RFID tag password keyboard
By introducing RFID tag keypads into POS machines, encrypted storage and transmission of key values are achieved, solving the security risks caused by plaintext transmission in traditional POS machines and improving the security of keypads.
Patent Information
- Application Number
- CN202423106543.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-13
- Publication Date
- 2026-01-02
- Estimated Expiration
- 2034-12-13
AI Technical Summary
Traditional keypads transmit key values to the CPU in plaintext after a key is pressed, posing a risk of theft or tampering. Existing encryption methods are not robust enough to completely eliminate security vulnerabilities.
An RFID tag keypad is used, and encrypted key value data is stored and transmitted through the RFID tag chip and antenna. The key value is stored in the RFID tag chip in ciphertext form. When the key is pressed, the RFID tag antenna activates the chip, and the data is transmitted to the PCB board and finally to the CPU through the NFC communication module.
Ensuring that the key value remains encrypted throughout the entire transmission process enhances the security of the PIN pad and prevents theft and tampering.
Smart Images
Figure CN223757124U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The application relates to the technical field of POS terminals, in particular to a POS machine with an RFID tag password keyboard. BACKGROUND
[0002] A password keyboard is an important component of a financial POS terminal, and the security of the keyboard is also very important. The numerical keys of the password keyboard have no defense capability, and the key value is obtained by the CPU after the keys are pressed. Therefore, the transmission process is in plaintext, so the security design of the password keyboard of the financial POS is very important. In the traditional password keyboard, the key value is transmitted to the CPU in plaintext after the key is pressed, and there is a risk of being stolen or tampered in this process. In order to improve the security, the prior art tries to encrypt the key value, but most of the schemes still need to maintain a certain plaintext state in the transmission process, or the encryption method is not perfect, and it is difficult to completely eliminate the security risk. CONTENT OF THE UTILITY MODEL
[0003] Therefore, the application provides a POS machine with an RFID tag password keyboard.
[0004] According to an aspect of the application, a POS machine with an RFID tag password keyboard is provided, comprising a PCB board, an RFID tag chip, an RFID tag antenna, a key and a shell.
[0005] The shell is a hollow structure, one side of which is provided with a key slot, the PCB board is arranged in the interior of the shell, the RFID tag chip is arranged on the PCB board and electrically connected with the PCB board, and the RFID tag chip is electrically connected with a chip contact point, the key is arranged on the PCB board and located in the key slot and can be pressed towards the direction of the PCB board, the RFID tag antenna is arranged on the side corresponding to the PCB board, the RFID tag antenna is electrically connected with an antenna contact point, the antenna contact point corresponds to the chip contact point in an up-down manner, and the RFID tag chip is pre-set with corresponding encrypted key value data which is transmitted to the PCB board through the RFID tag antenna and the RFID tag chip.
[0006] In a possible implementation, the RFID tag chip is a plurality of RFID tag chips which are arranged in an array on the PCB board, and the plurality of RFID tag chips are located in the key slot of the shell.
[0007] The number of the RFID tag antennas matches the number of the RFID tag chips, and each RFID tag antenna corresponds to one RFID tag chip.
[0008] In a possible implementation, the RFID tag chip is provided with two chip contact points, which correspond to the two antenna contact points of the RFID tag antenna respectively, and the key is used to connect the chip contact points and the antenna contact points.
[0009] The RFID tag antenna is electrically connected with the RFID tag chip.
[0010] The RFID tag chip is in communication connection with the PCB board through the RFID tag antenna.
[0011] In a possible implementation, the RFID tag antenna is in NFC communication connection with the PCB board.
[0012] In a possible implementation, the RFID tag antenna and the PCB board both use 13.56 MHz as a carrier for communication.
[0013] In a possible implementation, the RFID tag antenna emits a field strength to power the RFID tag chip, activate the RFID tag chip, read and transmit the encrypted key value data to the PCB board.
[0014] In a possible implementation, one side of the key is provided with the RFID tag antenna, and the other side is engraved with key information.
[0015] In a possible implementation, the RFID tag antenna is suitable for being arranged in a device environment generating a field strength.
[0016] The POS machine with the RFID tag password keyboard has the following advantages: each key value corresponds to an RFID tag chip, the key value exists in the RFID tag chip in the form of ciphertext, the antenna connected with the RFID tag chip is placed in the key, when the key is pressed, the antenna is connected with the RFID tag chip, at this time, as long as a field strength is applied to the RFID tag antenna, the field strength powers the RFID tag chip through the RFID tag antenna, thereby activating the RFID tag chip to read the encrypted key value data in the chip, the key value data is encrypted, so the key value data is read, since the key value data is stored in the RFID tag chip in an encrypted form and remains in an encrypted state in the whole transmission process, the security of the key value in the whole transmission process is ensured.
[0017] Other features and aspects of the present application will become apparent from the following detailed description of exemplary embodiments with reference to the drawings. BRIEF DESCRIPTION OF DRAWINGS
[0018] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate examples of the present application, and together with the description, serve to explain the principles of the present application.
[0019] Figure 1 A schematic diagram showing the main structure of a POS machine with an RFID tag password keyboard according to an embodiment of the present application;
[0020] Figure 2 A schematic diagram showing the main structure of a PCB and RFID tag chip according to an embodiment of the present application;
[0021] Figure 3 A schematic diagram showing the main structure of an RFID tag chip and a key according to an embodiment of the present application;
[0022] Figure 4 A schematic diagram showing the circuit connection of a POS machine with an RFID tag password keyboard according to an embodiment of the present application;
[0023] Figure 5 A schematic diagram showing the wireless communication of a POS machine with an RFID tag password keyboard according to an embodiment of the present application. DETAILED DESCRIPTION
[0024] Various exemplary embodiments, features, and aspects of the present application will be described herein below with reference to the accompanying drawings. The same reference numbers in different drawings indicate the same or similar elements. Although various aspects of the embodiments are illustrated in the drawings, the drawings are not necessarily drawn to scale unless specifically indicated.
[0025] It should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application or simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application.
[0026] In addition, the terms "first" and "second" are used only for descriptive purposes and cannot be understood as indicating or implying relative importance or implying the number of the technical features indicated. Therefore, the features defined with "first" and "second" can explicitly or implicitly include one or more of the features. In the description of the present application, the meaning of "multiple" is two or more, unless otherwise specifically limited.
[0027] The term “exemplary” as used herein means “serving as an example, embodiment, or illustration.” Any embodiment illustrated herein as “exemplary” is not necessarily to be construed as superior to or better than other embodiments.
[0028] Furthermore, to better illustrate this application, numerous specific details are provided in the following detailed embodiments. Those skilled in the art should understand that this application can be implemented without certain specific details. In some instances, methods, means, components, and circuits well-known to those skilled in the art have not been described in detail in order to highlight the main points of this application.
[0029] Figure 1 A schematic diagram of the main structure according to an embodiment of this application is shown. Figure 1 As shown, the POS machine with RFID tag keypad in this embodiment includes: a PCB board 100, an RFID tag chip 200, an RFID tag antenna 400, a button 300, and a housing. The housing has a hollow structure with a button 300 slot on one side. The PCB board 100 is disposed inside the housing. The RFID tag chip 200 is disposed on the PCB board 100 and electrically connected to the PCB board 100. The RFID tag chip 200 is electrically connected to a chip 200 contact point. The button 300 is disposed on the PCB board 100 and located in the button 300 slot, and can be pressed towards the PCB board 100. The RFID tag antenna 400 is disposed on the side of the button 300 corresponding to the PCB board 100. The RFID tag antenna 400 is electrically connected to an antenna contact point 410. The antenna contact point 410 corresponds vertically to the chip contact point 210. The RFID tag chip 200 has a corresponding encrypted key value data preset, which is transmitted to the PCB board 100 through the connection between the RFID tag antenna 400 and the RFID tag chip 200.
[0030] In this embodiment, each key value corresponds to one RFID tag chip 200. The key value is stored in the RFID tag chip 200 in encrypted form. The antenna 400 connected to the RFID tag chip 200 is placed in the button 300. When the button 300 is pressed, the antenna 400 connects to the RFID tag chip 200. At this time, as long as an electric field is applied to the RFID tag antenna 400, the electric field will power the RFID tag chip 200 through the RFID tag antenna 400, thereby activating the RFID tag chip 200 to read the encrypted key value data in the chip 200. The key value data is encrypted, so it is read from this key value data. Since the key value data is stored in encrypted form in the RFID tag chip 200 and remains encrypted throughout the entire transmission process, the security of the key value is ensured throughout the entire transmission process.
[0031] The shell is a hollow structure, and a key 300 slot is formed on one side of the shell for user operation. The PCB 100 is arranged inside the shell and serves as a basic support for the circuit. The RFID tag chip 200 is arranged on the PCB 100 and electrically connected to the PCB 100, and is used to store encrypted key value data. The chip 200 contact point is electrically connected to the RFID tag chip 200 and is used to electrically connect with the RFID tag antenna 400 and transmit the encrypted key value data. The key 300 is arranged on the PCB 100 and located in the key 300 slot, and can be pressed towards the direction of the PCB 100. The RFID tag antenna 400 is arranged on the side of the PCB 100 corresponding to the key 300. The antenna contact point 410 is electrically connected to the RFID tag antenna 400. The antenna contact point 410 and the chip contact point 210 correspond to each other. When the user presses the key 300, the chip contact point 210 and the antenna contact point 410 are in contact, thereby activating the RFID tag chip 200 and enabling it to transmit the encrypted key value data to the PCB 100 through the RFID tag antenna 400.
[0032] In an embodiment, the RFID tag chip 200 is arranged in an array on the PCB 100, and the plurality of RFID tag chips 200 are located in the key 300 slot of the shell. The number of RFID tag antennas 400 matches the number of RFID tag chips 200 and corresponds to each other, thereby realizing encrypted password input of multiple key positions. The number of RFID tag antennas 400 matches the number of RFID tag chips 200 and corresponds to each other, thereby ensuring that each key 300 can accurately transmit encrypted key value data.
[0033] Further, in this embodiment, the RFID tag chip 200 is provided with two chip 200 contact points, which correspond to the two antenna 400 contact points of the RFID tag antenna 400. The key 300 connects the chip 200 contact point and the antenna 400 contact point. The RFID tag antenna 400 is electrically connected to the RFID tag chip 200. The RFID tag chip 200 is connected to the PCB 100 through the RFID tag antenna 400. The RFID tag chip 200 is provided with two chip 200 contact points, which correspond to the two antenna 400 contact points of the RFID tag antenna 400. When the user presses the key 300, the chip 200 contact point and the antenna 400 contact point are in contact, thereby establishing an electrical connection. The RFID tag antenna 400 is electrically connected to the RFID tag chip 200, and the RFID tag chip 200 is activated. The encrypted key value data is transmitted to the PCB 100 through the connection. The PCB 100 is provided with an NFC communication module for receiving and processing the encrypted key value data transmitted by the RFID tag antenna 400.
[0034] In a specific embodiment, the RFID tag antenna 400 is in NFC communication connection with the PCB board 100, and the RFID tag antenna 400 and the PCB board 100 both use 13.56 MHz as a carrier for communication. Among them, the RFID tag antenna 400 emits a field strength to power the RFID tag chip 200, activates the RFID tag chip 200, reads and transmits the encrypted key value data to the PCB board 100. When the RFID tag antenna 400 receives the field strength from the device that generates the field strength, the field strength powers the RFID tag chip 200, activates the RFID tag chip 200, the RFID tag chip 200 reads the stored encrypted key value data, and transmits the data to the NFC communication module on the PCB board 100 through the RFID tag antenna 400, and the NFC communication module transmits the data to the processor of the POS machine for decryption and processing.
[0035] In a specific embodiment, one side of the key 300 is provided with an RFID tag antenna 400 attached, and the other side is engraved with key 300 information. The key 300 information on the key 300 matches the corresponding RFID tag chip 200.
[0036] In a specific embodiment, the RFID tag antenna 400 is suitable for being arranged in a device environment that generates a field strength. When the device is placed in the field strength of the device that can generate the field strength, the field strength powers the RFID tag chip 200, activates the RFID tag chip 200, the RFID tag chip 200 reads the stored encrypted key value data, and transmits the data to the NFC communication module on the PCB board 100 through the RFID tag antenna 400. The NFC communication module transmits the data to the processor of the POS machine for decryption and processing.
[0037] The above has described the embodiments of the present application, and the above description is exemplary, not exhaustive, and is not limited to the disclosed embodiments. Many modifications and changes are obvious to those skilled in the art without departing from the scope and spirit of the described embodiments. The choice of terms used herein is intended to best explain the principles, practical applications, or improvements to the technology in the market of the embodiments, or to enable other ordinary skilled persons in the art to understand the embodiments disclosed herein.
Claims
1. A POS machine with an RFID tag password keyboard, characterized by, Include: PCB board, RFID tag chip, RFID tag antenna, button and shell; The shell is a hollow structure, one side is provided with a button slot, the PCB board is arranged in the interior of the shell, the RFID tag chip is arranged on the PCB board and electrically connected with the PCB board, and the RFID tag chip is electrically connected with a chip contact point, the button is arranged on the PCB board and located in the button slot, and can be pressed towards the direction of the PCB board, the button is provided with the RFID tag antenna on the side corresponding to the PCB board, the RFID tag antenna is electrically connected with an antenna contact point, the antenna contact point corresponds to the chip contact point up and down, and the RFID tag chip is provided with corresponding encrypted key value data, which is transmitted to the PCB board through the RFID tag antenna and RFID tag chip connection.
2. The POS machine with an RFID tag password keyboard according to claim 1, wherein, The RFID tag chip is multiple, arranged in array on the PCB board, and multiple RFID tag chips are located in the button slot of the shell. The number of RFID tag antennas matches the number of RFID tag chips, and one-to-one correspondence.
3. The POS machine with an RFID tagged password keyboard of claim 2, wherein, The two chip contact points provided by the RFID tag chip correspond to the two antenna contact points of the RFID tag antenna up and down respectively, and the chip contact points and the antenna contact points are connected by pressing the button. The RFID tag antenna is electrically connected with the RFID tag chip. The RFID tag chip is connected with the PCB board in communication through the RFID tag antenna.
4. The POS machine with an RFID tagged password keypad of any of claims 1-3, wherein, The RFID tag antenna and the PCB board are connected in NFC communication.
5. The POS machine with an RFID tagged password keyboard of claim 4, wherein, The RFID tag antenna and the PCB board use 13.56 MHz as the carrier for communication.
6. The POS machine with an RFID tagged password keypad of claim 5, wherein, The RFID tag antenna emits field strength to power the RFID tag chip, activate the RFID tag chip, read and transmit the encrypted key value data to the PCB board.
7. The POS machine with an RFID tagged password keypad of any of claims 1-3, wherein, One side of the button is provided with the RFID tag antenna, and the other side is engraved with button information.
8. The POS machine with an RFID tagged password keypad of claim 1, wherein, The RFID tag antenna is suitable for being arranged in the environment of the device generating field strength.