Multi-antenna high-frequency radio frequency card ID information reading system
The multi-antenna high-frequency radio frequency card ID information reading system solves the problem of limited one-to-one reading and identification distance in existing technologies, realizes multi-antenna, long-distance sensing and identification, reduces the complexity and cost of document management equipment, and improves reading performance.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-23
- Publication Date
- 2026-03-24
AI Technical Summary
In existing technologies, airport isolation zone document management equipment can only read high-frequency radio frequency cards one-to-one, and the sensing and identification distance is limited, resulting in high management costs and a need to improve equipment performance.
Design a multi-antenna high-frequency radio frequency card ID information reading system, including a multi-antenna sensing control module, a power supply module, an external interface, sensing antennas, a programmable decoding module, and a data transmission module. It realizes long-distance sensing and identification of high-frequency radio frequency card ID information through multiple antenna channels.
It enables multi-antenna, long-distance sensing and identification of high-frequency radio frequency card ID information, reducing the complexity and cost of document management equipment and improving reading performance.
Smart Images
Figure CN224035901U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to high frequency radio frequency card internal unique code (ID) reading technical field, especially to a kind of multi-antenna high frequency radio frequency card ID information reading system. BACKGROUND
[0002] With the intelligent development of certificate management technology, the airport isolation area certificate management equipment has the function of automatically identifying isolation area certificate ID information, realizes the intelligentization and automation of airport isolation area certificate management, greatly reduces the human resource investment of certificate management, and has good economic benefit and social benefit.The airport isolation area certificate generally uses iClass card or high frequency B type IC card, and they are different in card type, belong to high frequency radio frequency card, and the frequency is 13.56MHz.Different types of card reading and writing interfaces are different, and there is only one-to-one card reader product on the market.
[0003] The intelligent certificate cabinet research and development project requires that the isolation area certificate and the personal certificate are stored uniformly and independently, so the ID information of the certificate in each compartment of the intelligent certificate cabinet needs to be read separately.The current card reader product can only be one-to-one reading and identification, and the inductive identification distance is limited, so that the management cost of isolation area certificate is large, and the performance of certificate management equipment needs to be improved. UTILITY MODEL CONTENT
[0004] In order to solve the problems in the prior art, the utility model provides a kind of multi-antenna high frequency radio frequency card ID information reading system, realizes the ID information of multi-antenna, long-distance inductive identification high frequency radio frequency card, reduces the input cost of certificate management equipment, and improves reading performance.
[0005] In order to achieve the above purpose, the multi-antenna high frequency radio frequency card ID information reading system provided by the utility model comprises:
[0006] A multi-antenna inductive control module has a plurality of antenna inductive subchannel interfaces;
[0007] A power module is connected to the multi-antenna inductive control module;
[0008] An external interface is connected to the multi-antenna inductive control module at one end and connected to an external communication line at the other end;
[0009] An inductive antenna is connected to the antenna inductive subchannel interface at one end;
[0010] A programmable decoding module is connected to the multi-antenna inductive control module;
[0011] A data transmission module and a parameter setting module are respectively connected to the multi-antenna inductive control module.
[0012] Further, the multi-antenna induction control module comprises a power management circuit, an RS485 interface circuit, a radio frequency core processing module and a radio frequency antenna expansion circuit.
[0013] The power management circuit is connected with the power module.
[0014] The RS485 interface circuit is connected with the power management circuit and connected with the radio frequency core processing module through a UART interface.
[0015] The radio frequency core processing module is connected with the radio frequency antenna expansion circuit through a GPIO control line and a 13.56MHz radio frequency bus.
[0016] The radio frequency antenna expansion circuit expands a single antenna channel into a multi-antenna channel.
[0017] Further, the power management circuit comprises a direct current voltage conversion circuit and a low-dropout voltage reduction circuit, the direct current voltage conversion circuit is used for converting an input voltage provided by the power module into a first voltage and outputting, and the low-dropout voltage reduction circuit is used for converting the first voltage into a second voltage and outputting.
[0018] Further, an overvoltage protection circuit is arranged between the power module and a power supply input end of the multi-antenna induction control module.
[0019] Further, the length of the induction antenna is less than or equal to 600mm.
[0020] Further, the other end of the induction antenna is connected with a high-frequency radio frequency card.
[0021] The multi-antenna high-frequency radio frequency card ID information reading system has the following beneficial effects compared with the prior art:
[0022] The multi-antenna induction control module provides a plurality of antenna induction sub-channel antenna interfaces, supports multi-antenna and long-distance induction reading of ID information of a high-frequency radio frequency card, and greatly reduces the complexity and cost of a certificate management device.
[0023] Other features and advantages of the present application will be described in the following description, and some of them will become apparent from the description, or will be understood by those skilled in the art through implementation of the present application. BRIEF DESCRIPTION OF DRAWINGS
[0024] The drawings are used to provide a further understanding of the present application, and constitute a part of the specification, and together with the embodiments of the present application, are used to explain the present application, and do not constitute a limitation on the present application. In the drawings:
[0025] Figure 1The structure schematic diagram of the multi-antenna high-frequency radio frequency card ID information reading system according to the embodiment of the utility model;
[0026] Figure 2 The structure schematic diagram of the multi-antenna induction control module according to the embodiment of the utility model. DETAILED DESCRIPTION
[0027] The preferred embodiments of the utility model will be described below with reference to the drawings. It should be understood that the preferred embodiments described herein are only used to illustrate and explain the utility model, and are not used to limit the utility model.
[0028] Embodiments of the utility model will be described in more detail below with reference to the drawings. Although some embodiments of the utility model are shown in the drawings, it should be understood that the utility model can be implemented in various forms, and should not be interpreted as being limited to the embodiments described herein, on the contrary, these embodiments are provided to more thoroughly and completely understand the utility model. It should be understood that the drawings and embodiments of the utility model are only for illustrative purposes, and are not used to limit the protection scope of the utility model.
[0029] The term "comprising" and its variations as used herein are open-ended, that is, "comprising but not limited to". The term "based on" is "at least partially based on". The term "one embodiment" means "at least one embodiment"; the term "another embodiment" means "at least one additional embodiment"; the term "some embodiments" means "at least some embodiments". Related definitions of other terms will be given in the following description.
[0030] In the drawings, some structural or method features are shown in specific arrangements and / or orders. However, it should be understood that such specific arrangements and / or orders can not be required. In some embodiments, these features can be arranged in a manner different from that shown in the illustrative drawings. In addition, the inclusion of a structural or method feature in a particular figure is not meant to imply that such feature is required in all embodiments, and in some embodiments, these features can not be included or can be combined with other features.
[0031] It should be understood that although the terms "first", "second" and the like can be used herein to describe various elements or data, these elements or data should not be limited by these terms. These terms are used only to distinguish one feature from another feature. For example, without departing from the scope of the exemplary embodiments, a first feature can be called a second feature, and similarly a second feature can be called a first feature.
[0032] It should be noted that the modification of "one" and "multiple" in the utility model is illustrative rather than restrictive, and those skilled in the art should understand that unless otherwise explicitly indicated in the context, it should be understood as "one or more". "Multiple" should be understood as two or more.
[0033] In the embodiment of the utility model, a multi-antenna high-frequency radio frequency card ID information reading system is provided, which comprises: a multi-antenna induction control module, the multi-antenna induction control module has a plurality of antenna induction sub-channel interfaces; a power module connected with the multi-antenna induction control module; an external interface, one end of which is connected with the multi-antenna induction control module, and the other end is connected with an external communication line; an induction antenna, one end of which is connected with the antenna induction sub-channel interface; a programmable decoding module connected with the multi-antenna induction control module; a data transmission module and a parameter setting module, which are respectively connected with the multi-antenna induction control module.
[0034] Figure 1 For the structure diagram of the multi-antenna high-frequency radio frequency card ID information reading system according to the embodiment of the utility model, the following will be combined with Figure 1 The multi-antenna high-frequency radio frequency card ID information reading system of the embodiment will be further described in detail.
[0035] The multi-antenna high-frequency radio frequency card ID information reading system of the embodiment comprises: an external interface 1, a power module 2, a multi-antenna induction control module 3, an induction antenna 4, a programmable decoding module 5, a data transmission module 6, and a parameter setting module 7. The external interface 1, the power module 2, the induction antenna 4, the programmable decoding module 5, the data transmission module 6, and the parameter setting module 7 are all connected with the multi-antenna induction control module 3. Among them, the external interface 1 is used for connecting the communication line.
[0036] The power module 2 provides input and transparent output (the length and content of the data of the sender and the receiver are completely consistent during the transmission process) of the power supply for the multi-antenna induction control module 3.
[0037] The multi-antenna induction control module 3 is used for providing a multi-antenna induction sub-channel antenna interface 35, the sub-channel antenna interface 35 is connected with a matched induction antenna 4, the multi-antenna induction control module 3 obtains the ID ciphertext of the read high-frequency radio frequency card from the induction antenna 4 (the number of the induction antenna 4 in the embodiment is 8), and sends the ID ciphertext to the programmable decoding module 5. The induction antenna 4 sends a radio frequency signal to the target high-frequency radio frequency card at a transmission frequency of 13.56MHz according to the instruction of the multi-antenna induction control module 3, and receives the radio frequency data transmitted from the high-frequency radio frequency card at the transmission frequency.
[0038] The programmable decoding module 5 receives the ID ciphertext from the multi-antenna induction control module 3, decodes the ID number from the ID ciphertext according to different high-frequency radio frequency card types, and returns the ID number to the multi-antenna induction control module 3.
[0039] The data transmission module 6 transmits data with the upper computer through MODUS protocol and data transmission protocol.
[0040] The parameter setting module 7 is used for setting the communication baud rate and the communication address, and storing the set communication baud rate and the communication address.
[0041] In the embodiment of the utility model, overvoltage protection circuit (not shown in the figure) is added between the power module 2 and the power input end of the multi-antenna induction control module 3.
[0042] In the embodiment of the utility model, the length of the induction antenna 4 is less than or equal to 600 mm.
[0043] Figure 2 For the multi-antenna induction control module structure diagram according to the embodiment of the utility model, as Figure 2 Indicated, the above multi-antenna induction control module 3 includes: power management circuit 31, RS485 interface circuit 32, radio frequency core processing module 33 and radio frequency antenna expansion circuit 34.
[0044] The power management circuit 31 converts the input voltage provided by the power module 2 into a first voltage and outputs through a DC voltage conversion circuit, and converts the first voltage into a second voltage and outputs through a low-dropout voltage reduction circuit.
[0045] In the embodiment of the utility model, the power management circuit 31 adopts DC-DC (direct current) voltage conversion path based on TI chip TPS5430DDAR and low-dropout voltage reduction circuit of MIPS chip SPX3919;TPS5430DDAR is used to convert input voltage DC12V into DC5V, and is output to RS485 interface circuit 32 and radio frequency core processing module 33 respectively;SPX3819 is used to convert DC5V into DC3.3V and is output to radio frequency core processing module 33 and radio frequency antenna expansion circuit 34 respectively.
[0046] In the embodiment of the utility model, the RS485 interface circuit based on Maxim MAX3485 is used to communicate with the user RS485 host. The RS485 interface circuit 32 is connected with the power management circuit 31, and is connected with the radio frequency core processing module 33 through UART interface (TTL level can be connected).
[0047] The radio frequency core processing module 33 is used for high-frequency radio card communication, processes the transmitting frequency of a radio frequency signal, transmits a signal to a high-frequency radio card through a 13.56MHz carrier signal, receives a response of the high-frequency radio card and a user's instruction, and controls the radio frequency antenna expansion circuit to expand a multi-antenna sensing sub-channel antenna interface 35 (ANT1-8) through a GPIO (General-purpose input / output). The radio frequency core processing module 33 is connected with the radio frequency antenna expansion circuit 34 through a GPIO control line and a 13.56MHz radio frequency bus.
[0048] The radio frequency antenna expansion circuit 34 is used for expanding a single-antenna into a multi-antenna.
[0049] In the embodiment of the utility model, the radio frequency antenna expansion circuit 34 adopts HMC221 scheme (uses HMC221 series radio frequency switch (RF Switch)) to realize multi-antenna port expansion.
[0050] Compared with the prior art, the multi-antenna high-frequency radio card ID information reading system of the embodiment of the utility model has the following advantages:
[0051] The 8-antenna sub-channel technology is adopted, and the complexity and production cost of the equipment are greatly reduced;
[0052] The longest 60cm reliable feedback sensing antenna can meet the internal space of industrial equipment;
[0053] The MODBUS communication protocol is adopted, and the baud rate and address can be set, which can support multi-module ad hoc network or mixed network operation with other RS485 interface equipment;
[0054] According to the provided communication protocol, the host computer program can be designed to realize parameter setting and ID information acquisition of the read card.
[0055] The application of the multi-antenna high-frequency radio card ID information reading system of the utility model is described below:
[0056] The multi-antenna high-frequency radio card ID information reading system of the utility model adopts MODUS protocol for communication;
[0057] The application process of the high-frequency radio card ID information reading is as follows:
[0058] Before actual installation, the communication baud rate determined according to the application scene is initialized according to the protocol of the system.
[0059] Before actual installation, the communication address of the module determined according to the application scene is initialized according to the protocol of the system.
[0060] According to the protocol of the circuit, the circuit is communicated with, the incoming address code and the antenna serial number are transmitted to read the ID information data.
[0061] The open communication protocol of the system includes: setting address instruction; setting baud rate instruction; reading UID (user identity) instruction.
[0062] In the embodiment, the system supports reading existing iClass cards, also supports class B IC cards, and can support other types of high-frequency radio frequency cards through different card tests.
[0063] According to the embodiment of the utility model, the multi-antenna high-frequency radio frequency card ID information reading system as described above can be used for intelligent certificate management equipment, and automatically identifies the ID information of the certificate stored in the intelligent certificate management equipment. For example, it is used for an intelligent certificate cabinet with multiple compartments, and the ID information of the certificate in the multiple compartments in the cabinet is automatically identified by the multi-antenna high-frequency radio frequency card ID information reading system, so that the certificate of the person can only be accessed by the person himself, the process is real and reliable, and cannot be replaced, realizes the automation and intelligentization of the management of the certificates in the isolation area, supports the multi-antenna and long-distance reading of the ID information of the certificate, effectively reduces the research and development cost of the intelligent certificate management equipment, and greatly improves the reading performance.
[0064] Those skilled in the art can understand that the above description is only the preferred embodiment of the utility model, and is not used to limit the utility model, although the utility model has been described in detail with reference to the foregoing embodiments, and for those skilled in the art, the technical scheme recorded in the foregoing embodiments can still be modified, or some technical features can be replaced. Any modification, equivalent replacement, improvement, etc. within the spirit and principle of the utility model should be included in the protection scope of the utility model.
Claims
1. A multi-antenna high-frequency radio frequency card ID information reading system, characterized by, The application relates to a multi-antenna induction control module, which comprises the following parts: a multi-antenna induction control module with a plurality of antenna induction sub-channel interfaces; a power module connected with the multi-antenna induction control module; an external interface with one end connected with the multi-antenna induction control module and the other end connected with an external communication line; an induction antenna with one end connected with the antenna induction sub-channel interface; a programmable decoding module connected with the multi-antenna induction control module; a data transmission module and a parameter setting module connected with the multi-antenna induction control module.
2. The multi-antenna high-frequency radio frequency card ID information reading system according to claim 1, characterized in that, The multi-antenna induction control module comprises a power management circuit, an RS485 interface circuit, a radio frequency core processing module and a radio frequency antenna expansion circuit. The power management circuit is connected with the power module. The RS485 interface circuit is connected with the power management circuit and connected with the radio frequency core processing module through a UART interface. The radio frequency core processing module is connected with the radio frequency antenna expansion circuit through a GPIO control line and a 13.56MHz radio frequency bus. The radio frequency antenna expansion circuit expands a single antenna channel into a plurality of antenna channels.
3. The multi-antenna high-frequency radio frequency card ID information reading system according to claim 2, characterized in that, The power management circuit comprises a direct-current voltage conversion circuit and a low-voltage-drop voltage reduction circuit, the direct-current voltage conversion circuit is used for converting an input voltage provided by the power module into a first voltage and outputting the first voltage, and the low-voltage-drop voltage reduction circuit is used for converting the first voltage into a second voltage and outputting the second voltage.
4. The multi-antenna high-frequency radio frequency card ID information reading system according to claim 1, characterized in that, An overvoltage protection circuit is arranged between the power module and a power supply input end of the multi-antenna induction control module.
5. The multi-antenna high-frequency radio frequency card ID information reading system according to claim 1, characterized in that, The length of the induction antenna is less than or equal to 600mm.
6. The multi-antenna high-frequency radio frequency card ID information reading system according to claim 1, wherein The other end of the induction antenna is connected with a high-frequency radio frequency card.