RFID card reader and mobile phone integrated system and RFID management method

Abstract

The invention provides an RFID card reader and mobile phone integrated system and an RFID management method, the system comprises an RFID card reading module, a communication module, a power supply module and a mounting structure, the RFID card reading module is used for reading information in an RFID tag; the communication module is used for transmitting information in the RFID tag to a mobile phone; the power module is used for obtaining electric energy from the mobile phone; the mounting structure is used for attaching the RFID card reading module, the communication module and the power supply module to the back of the mobile phone. According to the invention, the ultrahigh frequency RFID card reading module is attached to the back of the mobile phone in the form of a card sticker or a mobile phone shell, the mobile phone is utilized to provide power supply, display, communication and data management functions, and information scanned by the RFID card reading module is transmitted to the mobile phone to be processed and displayed. The problems that a traditional ultrahigh frequency card reader is large in size and single in function, needs independent power supply and is limited in data processing capacity are solved, and the portability and practicability of RFID application are improved.

Description

Technical Field

[0001] The present invention relates to the field of radio frequency identification technology, in particular to an RFID card reader and mobile phone integrated system and an RFID management method. Background Art

[0002] Radio Frequency Identification (RFID) is a contactless automatic identification technology widely used in logistics, warehousing, asset management, and other fields. Ultra-high frequency (UHF) RFID technology is valuable in enterprise applications due to its advantages such as long read range and high data transmission rates.

[0003] Currently, most UHF RFID readers on the market are standalone devices, which have the following problems: Large size and poor portability; Requires a separate power supply, resulting in high power consumption; The data processing capacity is limited and requires additional computers to be connected for data analysis and storage; The display function is simple and the user experience is poor; There is no network connection function or the network connection method is single, and the real-time data sharing capability is weak.

[0004] With the popularity of smart phones, it is possible to combine RFID technology with mobile phones. In the existing technology, there are some RFID card reader peripherals connected via OTG interface or Bluetooth, but these devices are still used as external devices and have low portability and integration. Summary of the Invention

[0005] The purpose of the present invention is to improve and innovate the shortcomings and problems existing in the background technology, and to provide an RFID card reader and mobile phone integrated system and an RFID management method.

[0006] According to a first aspect of the present invention, there is provided an RFID card reader and mobile phone integration system, comprising: RFID card reader module, used to read the information in the RFID tag and decode the information in the RFID tag; The communication module is used to transmit the decoded information in the RFID tag to the mobile phone, or transmit the mobile phone information to the RFID card reader module and then to the RFID tag; A power module, used to obtain power from the mobile phone to power the RFID card reader module and the communication module; The mounting structure is used to attach the RFID card reader module, communication module and power module to the back of the mobile phone.

[0007] A further solution is that the RFID card reader module includes an RFID antenna, a radio frequency front-end chip and an MCU module. The RFID antenna is responsible for receiving and transmitting radio frequency signals to achieve wireless communication with the RFID tag; the radio frequency front-end chip is used to process radio frequency signals, including converting the radio frequency signals received by the RFID antenna into baseband signals, and modulating the instructions of the MCU module into radio frequency signals; the MCU module is used to parse the baseband signals transmitted by the radio frequency front-end chip, and transmit the decoded information in the RFID tag to the communication module.

[0008] A further solution is that the communication module can be a wired communication mode and / or a wireless communication mode, and the power supply module can be a wired power supply mode and / or a wireless power supply mode.

[0009] A further solution is that the wired communication method is to communicate with the mobile phone through a Lightning cable, a USB cable or a Type-C cable; the wireless communication method is to communicate with the mobile phone through a wireless module, and the wireless module can be Bluetooth or Wi-Fi.

[0010] A further solution is that the wired power supply method is to electrically connect to the mobile phone through a Lightning cable, USB cable or Type-C cable; the wireless power supply method is to electrically connect to the mobile phone through a wireless charging receiving module, and the wireless charging receiving module includes a wireless charging receiving coil and a wireless charging receiving chip. The wireless charging receiving coil is used to receive the electromagnetic induction energy emitted by the wireless charging transmitting source of the mobile phone.

[0011] A further solution is that the power supply module also includes an AC-DC converter, a DC-DC converter and a power management IC, the AC-DC converter is used to convert AC power into DC power; the DC-DC converter is used to convert input voltage into output voltage to meet the power supply voltage requirements of the RFID card reader module and the communication module; the power management IC is used to distribute electrical energy to the RFID card reader module and the communication module.

[0012] A further solution is that the mounting structure is in the form of a card sticker or a mobile phone protective case; when the mounting structure is in the form of a card sticker, the RFID card reader module, communication module and power module are installed on the circuit layer, the circuit layer is installed on the FPC substrate, and an adhesive layer is provided on the side of the FPC substrate away from the circuit layer; when the mounting structure is in the form of a mobile phone protective case, the RFID card reader module, communication module and power module are installed on the circuit board, and the circuit board is embedded in the mobile phone case body.

[0013] A further solution is to further include a charging interface, wherein the charging interface is connected to the power module via a flexible wire; When the mounting structure is in the form of a card sticker, a protective film is provided on the side of the circuit layer away from the FPC substrate, and the protective film is used to cover the RFID card reader module, the communication module and the power module; When the mounting structure is in the form of a mobile phone protective case, the mobile phone case body is composed of a mobile phone case back cover and a mobile phone case front cover, and the mobile phone case front cover is used to separate the mobile phone from the RFID card reader module, the communication module and the power module.

[0014] According to a second aspect of the present invention, there is provided an RFID management method using the system as described in any one of the above items, comprising the following steps: Attach the RFID card reader module, communication module and power module to the back of the mobile phone through the mounting structure; The control communication module communicates with the mobile phone using a wired communication method and / or a wireless communication method, and the power supply module obtains power from the mobile phone using a wired power supply method and / or a wireless power supply method; Launch the mobile application software; The information in the RFID tag is read through the RFID card reader module and the information in the RFID tag is decoded; Transmit the decoded information in the RFID tag to the mobile phone; The data is processed and displayed by the mobile phone application software; Upload data to cloud servers for storage and sharing.

[0015] A further solution is that the control communication module uses a wired communication method and / or a wireless communication method to communicate with the mobile phone, and the power module uses a wired power supply method and / or a wireless power supply method to obtain power from the mobile phone. The steps specifically include: Determine whether the power of the RFID card reader module is greater than a preset power threshold; If yes, the power module is controlled to obtain power from the mobile phone through wired power supply; If not, determine whether the mobile phone battery level is greater than a preset battery threshold; If the power level of the mobile phone is greater than the preset power threshold, the power module is controlled to obtain power from the mobile phone using wireless power supply; If the power level of the mobile phone is not greater than the preset power threshold, the power module is controlled to obtain power from the mobile phone using a wired power supply method; Determine whether the mobile phone network signal strength is less than a preset signal threshold; If yes, the control communication module is connected to the mobile phone via wired communication; If not, determine whether the mobile phone battery level is greater than a preset battery threshold; If the battery level of the mobile phone is greater than the preset battery threshold, the control communication module is used to communicate with the mobile phone via wireless communication; If the battery level of the mobile phone is not greater than the preset battery threshold, the control communication module is used to communicate with the mobile phone in a wired communication manner; The communication module communicates with the mobile phone using wired communication and wireless communication, and the power module obtains power from the mobile phone using wired power supply and wireless power supply.

[0016] Compared with the prior art, the present invention has the following advantages: (1) the present invention improves the portability of the UHF RFID card reader, and the user can carry it with him; (2) The present invention is powered by a mobile phone battery and does not require an additional power source; (3) The present invention utilizes the powerful processing power and storage space of mobile phones to process RFID data; (4) The present invention utilizes the high-definition display screen of the mobile phone to provide a good user interface; (5) The present invention utilizes the mobile phone network function to achieve real-time data upload and cloud processing; (6) The present invention is designed in the form of a card sticker or mobile phone case, which is easy to install and does not affect the normal use of the mobile phone; (7) The RFID card reader of the present invention and the mobile phone can adopt both wired communication and wireless communication. The wired communication method is low-cost and simple in structure, but requires power and communication from the port of the mobile phone. The wireless communication method can achieve the effect of making the RFID card reader invisible, and the user is difficult to detect the presence of an additional hardware device loaded on the mobile phone during use. (8) The present invention dynamically determines whether to adopt wired communication or wireless communication mode, and selects wired power supply or wireless power supply scheme by monitoring the power status of the RFID card reader module, the power level of the mobile phone and the strength of the mobile phone network signal in real time. When it is detected that the power level of the mobile phone is lower than or equal to the preset power threshold, the system will automatically switch to wired communication and power supply mode to extend the battery life of the mobile phone. When it is detected that the power level of the mobile phone is higher than the preset power threshold, the wireless communication method is adopted. Although the wireless communication method has higher power consumption, it is more convenient and can reduce the occupation of the physical interface of the mobile phone, making it a better choice when the power is sufficient. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 A circuit block diagram of an RFID card reader and mobile phone integrated system provided by an embodiment of the present invention; Figure 2 A schematic diagram of the structure of an RFID card reader and mobile phone integrated system provided by an embodiment of the present invention, which is installed in the form of a mobile phone protective case without a charging port; Figure 3 The embodiment of the present invention provides Figure 2 Schematic diagram of the cross-section structure at AA in the middle; Figure 4A schematic diagram of the structure of an RFID card reader and mobile phone integrated system provided by an embodiment of the present invention, which is installed in the form of a card sticker without a charging port; Figure 5 The embodiment of the present invention provides Figure 4 Schematic diagram of the cross-section structure at the middle BB; Figure 6 A schematic diagram of the structure of an RFID card reader and mobile phone integrated system with a charging port installed in the form of a mobile phone protective case provided by an embodiment of the present invention; Figure 7 The embodiment of the present invention provides Figure 6 Schematic diagram of the cross-section structure at AA in the middle; Figure 8 A schematic diagram of the structure of an RFID card reader and mobile phone integrated system with a charging interface installed in the form of a card sticker provided by an embodiment of the present invention; Figure 9 The embodiment of the present invention provides Figure 8 Schematic diagram of the cross-sectional structure at BB in the middle.

[0018] Figure numerals: 1. Mobile phone case body; 101. Mobile phone case back cover; 102. Mobile phone case front cover; 2. RFID card reader module; 3. Communication module; 4. Power module; 5. Flexible wire; 6. Charging port; 7. Circuit board; 8. Adhesive layer; 9. FPC substrate; 10. Circuit layer; 11. Protective film; 201. RFID antenna; 202. RF front-end chip; 203. MCU module; 401. DC-DC converter; 402. DC-DC converter; 403. Power management IC. DETAILED DESCRIPTION

[0019] In order to make the objects, features and advantages of the present invention more obvious and easy to understand, the specific embodiments of the present invention are described in detail below with reference to the accompanying drawings.

[0020] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the art to which this invention pertains. The terms used in this specification of the present invention are for the purpose of describing specific embodiments only and are not intended to limit the present invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0021] See also Figures 1-9 The present invention provides an RFID card reader and mobile phone integrated system, comprising: RFID card reader module 2, the RFID card reader module 2 is used to read the information in the RFID tag and decode the information in the RFID tag; Communication module 3, which is used to transmit the decoded information in the RFID tag to the mobile phone; or transmit the mobile phone information to the RFID card reader module 2 and transmit the RFID tag; A power module 4 is configured to obtain electrical energy from the mobile phone and provide a 3.3V or 5V power supply voltage to the RFID card reader module 2 and the communication module 3; The mounting structure is used to attach the RFID card reader module 2, the communication module 3 and the power module 4 to the back of the mobile phone.

[0022] Specifically, the RFID card reader module 2 includes an RFID antenna 201, a radio frequency front-end chip 202, and an MCU module 203. The RFID antenna 201 is responsible for receiving and transmitting radio frequency signals to achieve wireless communication with the RFID tag. When receiving radio frequency signals, the RFID antenna 201 converts electromagnetic waves into electrical signals, and when transmitting radio frequency signals, it converts electrical signals into electromagnetic waves, thereby enabling the reading and writing of information within the RFID tag. The RFID antenna 201 is generally designed as a high-gain antenna to improve the reading distance and signal stability. The radio frequency front-end chip 202 is used to process radio frequency signals, including amplifying and converting the weak radio frequency signals received by the RFID antenna 201 into baseband signals, and modulating the instructions sent by the MCU module 203 into radio frequency signals. The radio frequency front-end chip 202 processes radio frequency signals, including modulating, demodulating, amplifying, and filtering the radio frequency signals. The MCU module 203 is used to parse the baseband signals transmitted by the radio frequency front-end chip 202 and transmit the decoded information within the RFID tag to the communication module 3. Among them, the MCU module 203 sends the decoded information to the communication module 3 through the UART / SPI serial port; and the communication module 3 transmits it to the mobile phone through Lightning, USB or Type-C (wired) or Bluetooth / Wi-Fi (wireless).

[0023] Furthermore, the communication module 3 can be wired and / or wireless, and the power module 4 can be wired and / or wireless. It should be noted that the RFID reader of the present invention can communicate with the mobile phone using both wired and wireless methods. Wired communication offers lower costs and a simpler structure, but requires power and communication from a port on the mobile phone. Wireless communication can achieve an invisible RFID reader, making it difficult for users to detect the presence of an additional hardware device on the mobile phone during use.

[0024] The wired communication method is to communicate with the mobile phone via a Lightning cable, USB cable, or Type-C cable; the wireless communication method is to communicate with the mobile phone via a wireless module, which can be Bluetooth or Wi-Fi. Communication module 3 supports two-way communication, which can not only transmit RFID data to the mobile phone at high speed, but also receive instructions from the mobile phone (such as start reading, stop reading). The wired power supply method is to electrically connect to the mobile phone via a Lightning cable, USB cable, or Type-C cable; the wireless power supply method is to electrically connect to the mobile phone via a wireless charging receiving module, which includes a wireless charging receiving coil and a wireless charging receiving chip. The wireless charging receiving coil is used to receive electromagnetic induction energy emitted by the mobile phone's wireless charging transmitter.

[0025] It should be noted that wired power supply directly utilizes the phone's power supply to power the RFID reader module 2 and communication module 3. This provides stable power but relies on a physical connection. The wireless charging receiver module is compatible with the phone's wireless charging function, enabling contactless power supply and greater convenience. However, its charging efficiency is slightly lower than wired power supply, and its power consumption is higher. Wired communication offers high stability but requires a physical connection. Wireless communication offers increased portability but can be affected by distance and interference, and consumes more power.

[0026] In some preferred embodiments, the power supply module 4 also includes an AC-DC converter 401, a DC-DC converter 402 and a power management IC 403, wherein the AC-DC converter 401 is used to convert AC power into DC power, and the DC-DC converter 402 is used to convert input voltage into output voltage to meet the power supply voltage requirements of the RFID card reader module 2 and the communication module 3; the power management IC 403 is used to distribute electrical energy to the RFID card reader module 2 and the communication module 3.

[0027] Specifically, the mounting structure is in the form of a card sticker or a mobile phone protective case. When the mounting structure is in the form of a card sticker, the RFID card reader module 2, communication module 3, and power module 4 are mounted on a circuit layer 10, which is in turn mounted on an FPC substrate 9. The circuit layer 10 and FPC substrate 9 form a flexible circuit board. An adhesive layer 8 is provided on the side of the FPC substrate 9 facing away from the circuit layer 10. The adhesive layer 8 may be 3M adhesive. In this case, the RFID card reader module 2, communication module 3, and power module 4 are adhered to the back of the mobile phone via the 3M adhesive. When the mounting structure is in the form of a mobile phone protective case, the RFID card reader module 2, communication module 3, and power module 4 are mounted on a circuit board 7, which is embedded in the mobile phone case body 1.

[0028] It should be noted that since the RFID card reader module 2, the communication module 3 and the power module 4 are installed on the circuit layer 10 or the circuit board 7, the RFID card reader module 2, the communication module 3 and the power module 4 can be electrically connected to each other through the circuit layer 10 or the circuit board 7; in addition, for wired power supply and wired communication, the power module 4 is also connected to the charging interface 6 through a soft wire 5, and the charging interface 6 is used to connect to the interface on the mobile phone, thereby realizing wired power supply and wired communication with the mobile phone.

[0029] In some preferred embodiments, in order to facilitate charging of the mobile phone, the soft wire 5 and the charging interface 6 can be configured as an overlapping charging cable, that is, the charging cable can include two charging interfaces 6, one of which is connected to the port of the mobile phone to realize wired communication and wired power supply between the RFID reader and the mobile phone; the other charging interface 6 is connected to the external power supply through a data cable, thereby charging the mobile phone and continuously replenishing the power of the mobile phone.

[0030] In some preferred embodiments, when the mounting structure is in the form of a card sticker, a protective film 11 is provided on the side of the circuit layer 10 facing away from the FPC substrate 9. The protective film 11 is used to cover the RFID card reader module 2, the communication module 3, and the power module 4; the protective film 11 provides protection. When the mounting structure is in the form of a mobile phone protective case, the mobile phone case body 1 is composed of a back cover 101 and a front cover 102. The front cover 102 is used to separate the mobile phone from the RFID card reader module 2, the communication module 3, and the power module 4. That is, the RFID card reader module 2, the communication module 3, and the power module 4 are disposed between the back cover 101 and the front cover 102. In this case, the front cover 102 provides protection.

[0031] The present invention also provides an RFID management method, which is implemented by the above system and includes the following steps: Step S101: attach the RFID card reader module 2, the communication module 3, and the power module 4 to the back of the mobile phone through the mounting structure; As mentioned above, the mounting structure may be in the form of a card sticker or a mobile phone protective case; Step S102: Control the communication module 3 to communicate with the mobile phone using a wired communication method and / or a wireless communication method, and the power module 4 to obtain power from the mobile phone using a wired power supply method and / or a wireless power supply method; The power supply and communication paths can be switched based on the monitored mobile phone battery level and network signal. Since the circuit layer 10 or circuit board 7 corresponding to the communication module 3 and the power module 4 is provided with MOS transistors or relays for switching power supply and communication, the corresponding MOS transistors or relays can be controlled to be on or off based on the monitored mobile phone battery level and network signal, thereby selecting a wired or wireless communication mode and a wired or wireless power supply mode.

[0032] Step S103: Start the mobile phone application software; It should be noted that the mobile application software can send control commands (such as starting and stopping reading, and adjusting the reading frequency), which are fed back to the MCU module 203 via the communication module 3 to achieve dynamic configuration. The mobile application software can also process and display the information within the decoded RFID tag.

[0033] Step S104: reading the information in the RFID tag through the RFID card reader module and decoding the information in the RFID tag; After receiving the control instruction to start reading, the MCU module 203 reads the information in the RFID tag according to the set reading frequency; as described above, the RF front-end chip 202 processes the received RF signal; amplifies the received weak RF signal and converts it into a baseband signal, and the MCU module 203 then parses the baseband signal transmitted by the RF front-end chip 202 and transmits the decoded information in the RFID tag to the communication module 3.

[0034] Step S105: transmitting the decoded information in the RFID tag to the mobile phone; Since the communication module 3 can communicate with the mobile phone using both wired communication methods (such as Lightning, USB, Type-C) and wireless communication methods (such as Bluetooth, Wi-Fi), the information in the decoded RFID tag can be transmitted to the mobile phone using both wired communication methods and wireless communication methods.

[0035] Step S106: The mobile phone application software processes and displays the data; Step S107: Upload the data to the cloud server for storage and sharing.

[0036] Furthermore, the step S102 specifically includes: Determine whether the power of the RFID card reader module 2 is greater than a preset power threshold; Specifically, a power monitoring chip can be integrated on the RFID card reader module 2 to detect the power of the RFID card reader module 2, and the power of the RFID card reader module 2 is associated with the frequency at which the RFID card reader module 2 reads the RFID tag; in this embodiment, the RFID card reader module 2 can be an ultra-high frequency RFID reader.

[0037] If yes, the power module 4 is controlled to obtain power from the mobile phone using a wired power supply method; Since the wired power supply method is more stable than the wireless power supply method, when the power of the RFID card reader module 2 is greater than the preset power threshold, the wired power supply method is adopted.

[0038] If not, determine whether the mobile phone battery level is greater than a preset battery threshold; Among them, the preset power threshold can be selected as 20%, 30% or 40%. Those skilled in the art can make a choice based on actual conditions, and this application does not make any specific limitation.

[0039] If the power level of the mobile phone is greater than the preset power threshold, the power module is controlled to obtain power from the mobile phone using wireless power supply; Since wireless power supply is more convenient than wired power supply and can save mobile phone interface space, when the mobile phone battery level exceeds the preset power threshold, wireless power supply is used to obtain power from the mobile phone. If the power level of the mobile phone is not greater than the preset power threshold, the power module is controlled to obtain power from the mobile phone using a wired power supply method; Since wireless power consumption is higher than wired power consumption, when the phone's battery level is below the preset threshold, wired power is used to obtain power, prioritizing the phone's battery life. Determine whether the mobile phone network signal strength is less than a preset signal threshold; If so, the communication module 3 is controlled to communicate with the mobile phone in a wired communication mode; the wired communication mode can ensure the stability of data transmission and avoid wireless packet loss.

[0040] If not, determine whether the mobile phone battery level is greater than a preset battery threshold; If the battery level of the mobile phone is greater than the preset battery threshold, the control communication module is used to communicate with the mobile phone via wireless communication; If the battery level of the mobile phone is not greater than the preset battery threshold, the control communication module is used to communicate with the mobile phone in a wired communication manner; Since wireless communication consumes high power, when the battery level of the mobile phone is not greater than the preset power threshold, wired communication is used. Compared with wired communication, wireless communication is more convenient and can save the mobile phone interface. Therefore, when the battery level of the mobile phone is greater than the preset power threshold, wireless communication is used.

[0041] Among them, the communication module 3 adopts wired communication and wireless communication to communicate with the mobile phone, and the power module 4 adopts wired power supply and wireless power supply to obtain power from the mobile phone, so that the communication method can adopt both wired communication and wireless communication; and the power supply method can adopt both wired power supply and wireless power supply.

[0042] In summary, the present invention provides an integrated RFID reader and mobile phone system and RFID management method. This system attaches an ultra-high frequency (UHF) RFID reader module 2 to the back of a mobile phone in the form of a card sticker or phone case. The phone provides power, display, communication, and data management functions. Information scanned by the RFID reader module 2 is transmitted to the mobile phone via wired or wireless communication for processing and display. This system addresses the issues of conventional ultra-high frequency (UHF) readers, such as their large size, limited functionality, separate power supply requirements, and limited data processing capabilities, thereby improving the portability and practicality of RFID applications. Furthermore, the system dynamically determines whether to use wired or wireless communication mode, as well as wired or wireless power supply, by monitoring the power status of the RFID reader module 2, the phone's battery level, and the strength of the mobile phone's network signal in real time. When the phone's battery level is detected to be below or equal to a preset threshold, the system automatically switches to wired communication and power supply mode to extend the phone's battery life. When the phone's battery level is detected to be above a preset threshold, wireless communication is used. Although wireless communication consumes more power, it is more convenient and reduces the occupation of the phone's physical interfaces, making it a more suitable option when the phone has sufficient battery power.

[0043] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like to indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore should not be understood as a limitation to the invention.

[0044] Throughout this specification, reference to terms such as "one embodiment," "some embodiments," "illustrative embodiments," "example," "specific example," or "some examples" means that a specific feature, structure, material, or characteristic described in conjunction with the embodiment or example is included in at least one embodiment or example of the present invention. In this specification, illustrative expressions of the above terms do not necessarily refer to the same embodiment or example.

[0045] Obviously, the described embodiments are only some of the embodiments of the present application, rather than all of the embodiments. Mentioning "embodiments" in this article means that the specific features, structures or characteristics described in conjunction with the embodiments may be included in at least one embodiment of the present embodiment application. The appearance of this phrase in various places in the specification does not necessarily mean the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive with other embodiments. It can be understood explicitly and implicitly by those skilled in the art that the embodiments described herein can be combined with other embodiments. Based on the embodiments in this application, all other embodiments obtained by those of ordinary skill in the art without making creative work are within the scope of protection of this application. Although embodiments of the present invention have been shown and described, those of ordinary skill in the art will understand that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and purpose of the present invention, and the scope of the present invention is defined by the claims and their equivalents.

Claims

1. An RFID card reader and mobile phone integrated system, characterized in that: include: RFID card reader module, used to read the information in the RFID tag and decode the information in the RFID tag; The communication module is used to transmit the decoded information in the RFID tag to the mobile phone; or transmit the mobile phone information to the RFID card reader module and transmit the RFID tag; A power module, used to obtain power from the mobile phone to power the RFID card reader module and the communication module; The mounting structure is used to attach the RFID card reader module, communication module and power module to the back of the mobile phone.

2. The RFID card reader and mobile phone integrated system according to claim 1, characterized in that: The RFID card reader module includes an RFID antenna, a radio frequency front-end chip and an MCU module. The RFID antenna is responsible for receiving and transmitting radio frequency signals to achieve wireless communication with the RFID tag; the radio frequency front-end chip is used to process radio frequency signals, including converting the radio frequency signals received by the RFID antenna into baseband signals and modulating the instructions of the MCU module into radio frequency signals; the MCU module is used to parse the baseband signals transmitted by the radio frequency front-end chip and transmit the decoded information in the RFID tag to the communication module.

3. The RFID card reader and mobile phone integrated system according to claim 1, characterized in that: The communication module may be a wired communication mode and / or a wireless communication mode, and the power supply module may be a wired power supply mode and / or a wireless power supply mode.

4. The RFID card reader and mobile phone integrated system according to claim 3, characterized in that: The wired communication method is to communicate with the mobile phone through a Lightning cable, USB cable or Type-C cable; the wireless communication method is to communicate with the mobile phone through a wireless module, and the wireless module can be Bluetooth or Wi-Fi.

5. The RFID card reader and mobile phone integrated system according to claim 3, characterized in that: The wired power supply method is to electrically connect to the mobile phone through a Lightning cable, USB cable or Type-C cable; the wireless power supply method is to electrically connect to the mobile phone through a wireless charging receiving module, and the wireless charging receiving module includes a wireless charging receiving coil and a wireless charging receiving chip. The wireless charging receiving coil is used to receive the electromagnetic induction energy emitted by the wireless charging transmitting source of the mobile phone.

6. The RFID card reader and mobile phone integrated system according to claim 5, characterized in that: The power supply module also includes an AC-DC converter, a DC-DC converter and a power management IC. The AC-DC converter is used to convert AC voltage into DC voltage, and the DC-DC converter is used to convert input voltage into output voltage to meet the power supply voltage requirements of the RFID card reader module and the communication module; the power management IC is used to distribute electrical energy to the RFID card reader module and the communication module.

7. The RFID card reader and mobile phone integration system according to claim 1, characterized in that: The mounting structure is in the form of a card sticker or a mobile phone protective case; when the mounting structure is in the form of a card sticker, the RFID card reader module, communication module and power module are installed on the circuit layer, and the circuit layer is installed on the FPC substrate, and an adhesive layer is provided on the side of the FPC substrate away from the circuit layer; when the mounting structure is in the form of a mobile phone protective case, the RFID card reader module, communication module and power module are installed on the circuit board, and the circuit board is embedded in the mobile phone case body.

8. The RFID card reader and mobile phone integrated system according to claim 7, characterized in that: Also includes a charging interface, the charging interface is connected to the power module via a flexible wire; When the mounting structure is in the form of a card sticker, a protective film is provided on the side of the circuit layer away from the FPC substrate, and the protective film is used to cover the RFID card reader module, the communication module and the power module; When the mounting structure is in the form of a mobile phone protective case, the mobile phone case body is composed of a mobile phone case back cover and a mobile phone case front cover, and the mobile phone case front cover is used to separate the mobile phone from the RFID card reader module, the communication module and the power module.

9. An RFID management method using the system according to any one of claims 1 to 8, characterized in that: The following steps are involved: Attach the RFID card reader module, communication module and power module to the back of the mobile phone through the mounting structure; The control communication module communicates with the mobile phone using a wired communication method and / or a wireless communication method, and the power supply module obtains power from the mobile phone using a wired power supply method and / or a wireless power supply method; Launch the mobile application software; The information in the RFID tag is read through the RFID card reader module and the information in the RFID tag is decoded; Transmit the decoded information in the RFID tag to the mobile phone; The data is processed and displayed by the mobile phone application software; Upload data to cloud servers for storage and sharing.

10. The RFID management method according to claim 9, characterized in that: The control communication module communicates with the mobile phone using a wired communication method and / or a wireless communication method, and the power module obtains power from the mobile phone using a wired power supply method and / or a wireless power supply method. The steps specifically include: Determine whether the power of the RFID card reader module is greater than a preset power threshold; If yes, the power module is controlled to obtain power from the mobile phone through wired power supply; If not, determine whether the mobile phone battery level is greater than a preset battery threshold; If the power level of the mobile phone is greater than the preset power threshold, the power module is controlled to obtain power from the mobile phone using wireless power supply; If the power level of the mobile phone is not greater than the preset power threshold, the power module is controlled to obtain power from the mobile phone using a wired power supply method; Determine whether the mobile phone network signal strength is less than a preset signal threshold; If yes, the control communication module is connected to the mobile phone via wired communication; If not, determine whether the mobile phone battery level is greater than a preset battery threshold; If the battery level of the mobile phone is greater than the preset battery threshold, the control communication module is used to communicate with the mobile phone via wireless communication; If the battery level of the mobile phone is not greater than the preset battery threshold, the control communication module is used to communicate with the mobile phone in a wired communication manner; The communication module communicates with the mobile phone using wired communication and wireless communication, and the power module obtains power from the mobile phone using wired power supply and wireless power supply.

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