RFID shopping card reader

Abstract

The RFID shopping card reader comprises a cover plate, a bottom plate, a left side plate, a right side plate, a front side plate and a rear side plate, the cover plate is provided with a card slot, the front side of the cover plate is provided with a camera, the back side of the cover plate is provided with a portrait acquisition module and an RFID identification module, the portrait acquisition module is connected with the camera, and the RFID identification module is connected with the camera. A main control chip module is mounted on the front surface of the bottom plate; and the portrait acquisition module and the RFID identification module are respectively connected with the main control chip module. According to the utility model, the portrait acquisition module and the RFID identification module are arranged on the back surface of the cover plate, and the main control chip module is arranged on the front surface of the bottom plate, so that on one hand, the integration level is improved, and on the other hand, the whole reader does not need to be disassembled during maintenance.

Description

Technical Field

[0001] The utility model relates to the identification of electronic cards, and more particularly to an RFID shopping card reader. Background Art

[0002] RFID, short for Radio Frequency Identification, is a contactless automatic identification technology that uses radio frequency signals to automatically identify objects and retrieve relevant data. A basic RFID system consists of a card core, a reader, and an antenna. The card core consists of a coupling element and a chip. Each card core has a unique electronic code and is attached to an object to identify the target object. The reader is a device that reads (or writes) information from the card core. The antenna transmits radio frequency signals between the card core and the reader.

[0003] Existing shopping cards are basically magnetic stripe shopping cards, and their production process is as follows: (1) Make a printing template. (2) Select a suitable magnetic card substrate material (usually PVC, etc.) and cut it into standard magnetic card size. (3) Place the printing template in an appropriate position and use a color printer to print on the magnetic card substrate. (4) Paste the magnetic stripe on the marked position on the back of the magnetic card substrate: Use a flat brush to evenly apply iron powder on the magnetic stripe, ensuring that it covers the entire magnetic stripe. After the iron powder dries, apply a layer of thermal adhesive on the magnetic stripe, then place the magnetic stripe on the magnetic card substrate and gently press it to make it adhere.

[0004] Although magnetic stripe shopping cards can also meet the need for pre-charge, they have the following two drawbacks during use:

[0005] (1) Magnetic stripe cards require iron powder to be evenly applied to the magnetic stripe. If the coating is uneven, there will be reading difficulties.

[0006] (2) The magnetic stripe has an expiration date. Once the magnetic stripe is demagnetized, the shopping card cannot be used.

[0007] RFID is a contactless automatic identification technology that has nothing to do with magnetic stripes. It is in line with technological development trends and there is a demand to apply RFID to shopping cards. Utility Model Content

[0008] In response to the above problems, the present invention provides an RFID shopping card reader, in which the portrait acquisition module and the RFID identification module are installed on the back of the cover plate, and the main control chip module is installed on the front of the base plate. On the one hand, the integration is improved, and on the other hand, the entire reader does not need to be disassembled for maintenance.

[0009] An RFID shopping card reader includes a cover plate, a bottom plate, a left plate, a right plate, a front plate, and a rear plate. The cover plate is provided with a card insertion slot. A camera is installed on the front of the cover plate, and a portrait acquisition module and an RFID recognition module are installed on the back of the cover plate. The portrait acquisition module is connected to the camera. A main control chip module is installed on the front of the bottom plate, and the portrait acquisition module and the RFID recognition module are respectively connected to the main control chip module.

[0010] Optionally, the RFID shopping card reader is further provided with a metal partition, in which at least one cooling liquid heat conduction pipe is embedded, and the metal partition is located between the cover plate and the bottom plate.

[0011] Optionally, the cooling liquid heat conduction pipe is a square tube or a circular tube.

[0012] Optionally, the distance between the inner tube top and the inner tube bottom of the cold liquid heat conduction pipe is greater than the thickness of the metal partition.

[0013] Optionally, the left side panel, front side panel, right side panel and rear side panel are fixedly connected as one, the metal partition is respectively connected to the left side panel, front side panel, right side panel and rear side panel, the cover plate is detachably connected to the upper surface of the left side panel, front side panel, right side panel and rear side panel, and the bottom plate is detachably connected to the lower surface of the left side panel, front side panel, right side panel and rear side panel.

[0014] Optionally, a first threaded hole is provided on the edge of the cover plate, a first corresponding threaded hole is provided on the top of the left side plate, front side plate, right side plate and rear side plate, a second threaded hole is provided on the edge of the bottom plate, and a second corresponding threaded hole is provided on the bottom of the left side plate, front side plate, right side plate and rear side plate.

[0015] Compared with the prior art, the beneficial effects of the present invention are:

[0016] The RFID shopping card reader provided by the utility model improves the integration by installing the portrait acquisition module and the RFID identification module on the back of the cover plate and installing the main control chip module on the front of the base plate. On the one hand, it improves the integration and on the other hand, it does not need to disassemble the entire reader for maintenance. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, a brief introduction will be given below to the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative labor.

[0018] Figure 1 This is a schematic diagram of the structure of an RFID shopping card provided in Example 1 of the present utility model;

[0019] Figure 2 This is a bottom view schematic diagram of an RFID shopping card provided in Example 1 of the present utility model;

[0020] Figure 3 This is a schematic diagram of the overall structure of an RFID shopping card provided in Example 2 of the present utility model;

[0021] Figure 4 This is a schematic diagram of the overall structure of the upper substrate of Example 2 of the present utility model;

[0022] Figure 5 1 is a schematic top view of the lower substrate of Example 2 of the present utility model;

[0023] Figure 6 This is a schematic bottom view of the lower substrate of Example 2 of the present utility model;

[0024] Figure 7 This is a schematic diagram of the overall structure of the RFID shopping card reader provided in Example 3 of the present utility model;

[0025] Figure 8 This is a schematic bottom view of the cover plate of Example 3 of the present utility model;

[0026] Figure 9 This is a schematic top view of the bottom plate of Example 3 of the present utility model;

[0027] Figure 10 This is a schematic diagram of the structure of the metal partition and the cold liquid heat conduction pipeline in Example 3 of the present utility model.

[0028] Description of reference numerals:

[0029] 1. Substrate, 2. RFID card core, 3. Electronically coded information area, 4. First non-electronic information area, 5. Second non-electronic information area, 6. Upper substrate, 7. Lower substrate, 8. Through slot, 9. Upper positioning hole, 10. Lower positioning hole, 11. Adhesion indicator, 12. Cover, 13. Bottom plate, 14. Left side plate, 15. Front side plate, 16. Card insertion port, 17. Camera, 18. Portrait acquisition module, 19. RFID identification module, 20. Main control chip module, 21. Metal partition, 22. Cooling liquid heat conduction pipe. DETAILED DESCRIPTION

[0030] In the description of this utility model, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense. For example, they may refer to a fixed connection, an indirect connection via an intermediate medium, internal communication between two components, or an interaction between two components. Those skilled in the art will understand the specific meanings of these terms in this utility model based on specific circumstances.

[0031] In the description of the present invention, it should be understood that the terms "upper," "lower," "front," "back," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like, indicating positions or relationships, are based on the positions or relationships shown in the accompanying drawings and are intended solely to facilitate the description of the present invention and simplify the description. They do not indicate or imply that the devices or components referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on the present invention. In the description of the present invention, "plurality" means two or more, unless otherwise specifically specified.

[0032] The terms "first", "second", "third", "fourth", etc. (if any) in the specification and claims of the present application and the above-mentioned drawings are used to distinguish similar objects and are not necessarily used to describe a specific order or sequential order. It should be understood that the numbers used in this way can be interchangeable where appropriate, so that the embodiments of the present application described herein can, for example, be implemented in an order other than those illustrated or described herein. In addition, the terms "including" and "having" and any variations thereof are intended to cover non-exclusive inclusions, for example, a process, method, system, product or device comprising a series of steps or units is not necessarily limited to those steps or units clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices.

[0033] To make the purpose, technical solutions, and advantages of the embodiments of this application more clear, the technical solutions in the embodiments of this application will be clearly and completely described below in conjunction with the drawings in the embodiments of this application. Obviously, the described embodiments are part of the embodiments of this application, not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of this application.

[0034] The following specific embodiments are used to describe the technical solution of the present invention in detail. The following specific embodiments can be combined with each other, and the same or similar concepts or processes may not be described in detail in some embodiments.

[0035] Example 1

[0036] Please refer to Figure 1 , Figure 1 This is a schematic top view of an RFID shopping card provided in this embodiment. Figure 2 This is a schematic bottom view of an RFID shopping card provided in this embodiment.

[0037] An RFID shopping card includes a substrate 1. The front surface of the substrate 1 is provided with an electronically coded information area 3. An RFID card core 2 is adhered to the electronically coded information area 3 via pressure-sensitive adhesive. The RFID card core 2 has a unique electronic code. Outside the electronically coded information area 3 is a first non-electronic information area 4. The back surface of the substrate 1 is provided with a second non-electronic information area 5. The non-electronic information such as text, graphics, or numbers in the first non-electronic information area 4 and the second non-electronic information area 5 is obtained by printing, rubbing, or engraving, and the non-electronic information can be directly read visually.

[0038] The preparation method of the RFID shopping card of this embodiment is as follows:

[0039] (1) Make a printing template. (2) Select a suitable substrate material (usually PVC, etc.) and cut it into substrate 1. (3) Place the printing template in the appropriate position and use a color printer to print on the front and back of the substrate. (4) Adhere the RFID card core 2 to the electronic code information area 3 on the front of the substrate 1 using pressure-sensitive adhesive.

[0040] Example 2

[0041] In Example 1, an RFID card core is attached to the front surface of a substrate using heat-sensitive adhesive, thereby achieving contactless automatic identification of shopping cards. However, since the RFID card core is attached to the substrate using heat-sensitive adhesive, the top surface of the RFID card core is higher than the top surface of the substrate. Users carry not only shopping cards but also other electronic cards such as bank cards and ID cards. Even if they only carry shopping cards, they may have multiple shopping cards. Furthermore, users may also carry non-flexible objects such as nail clippers. When these non-flexible objects come into contact with the RFID shopping card, they will rub against the top surface of the RFID card core. Long-term friction may cause the reader to have reading difficulties when reading the RFID card core.

[0042] Please refer to Figure 3 , Figure 3 This is a schematic diagram of the overall structure of an RFID shopping card provided in this embodiment. Figure 4 Schematic diagram of the overall structure of the upper substrate of this embodiment, Figure 5 Schematic diagram of a top view of the lower substrate of this embodiment, Figure 6 Schematic bottom view of the lower substrate of this embodiment.

[0043] An RFID shopping card includes an upper substrate 6, a lower substrate 7, and an RFID card core 2. The RFID card core 2 has a unique electronic code. The upper substrate 6 is provided with a through slot 8. The bottom surface of the RFID card core 2 is adhered to the front surface of the lower substrate 7 with a pressure-sensitive adhesive. The back surface of the upper substrate 6 and the front surface of the lower substrate 7 are integrally bonded. The RFID card core 2 is located in the through slot 8, and the top surface of the RFID card core 2 is lower than the top surface of the upper substrate 6.

[0044] Through the upper substrate 6, the lower substrate 7 and the through slot 8, the top surface of the RFID card core 2 is set to be lower than the top surface of the upper substrate 6. Therefore, during the use of the user, since the top surface of the RFID card core 2 is lower than the top surface of the upper substrate 6, even if the user carries multiple electronic cards and non-flexible objects, when the objects come into contact with each other, the surface that contacts other objects is the top surface of the upper substrate 6 or the back surface of the lower substrate 7. Since the RFID card core 2 is located in the through slot 8 and its top surface is lower than the front surface of the upper substrate 6, friction caused by contact with other objects is avoided.

[0045] In order to facilitate reader reading and make it as thin as possible, the top surface of the RFID card core 2 is only slightly lower than the top surface of the upper substrate 6. Preferably, the height difference between the front surface of the upper substrate 6 and the top surface of the RFID card core 2 is 2-8um, which can achieve better results.

[0046] Furthermore, the thickness of the upper substrate 6 is 0.13-0.18 mm, the thickness of the lower substrate 7 is 0.65-0.72 mm, and the thickness of the RFID card core 2 is 120-150 μm.

[0047] Furthermore, a first non-electronic information area 4 is provided on the front side of the upper substrate 6, and the first non-electronic information area 4 is located outside the through groove 8. Non-electronic information such as text, graphics or numbers that can be directly read visually is provided on the first non-electronic information area 4; a second non-electronic information area 5 is provided on the back side of the lower substrate 7, and non-electronic information such as text, graphics or numbers that can be directly read visually is provided on the second non-electronic information area 5.

[0048] Furthermore, the material of the upper substrate 6 and the lower substrate 7 can be PVC or PET.

[0049] Furthermore, the operating frequency of the RFID card core 2 can be a low frequency of 30-300KHZ, a high frequency of 3-30MHZ or an ultra-high frequency of 300MHZ-3GHZ.

[0050] Furthermore, to facilitate packaging positioning, an upper positioning hole 9 is formed on the upper substrate 6, a lower positioning hole 10 is formed on the lower substrate 7, and a bonding indicator 11 is provided on the front of the lower substrate 7. The upper positioning hole 9, the lower positioning hole 10, and the bonding indicator 11 ensure that the RFID card core 2 is located in the center of the through slot 8 after packaging.

[0051] The preparation method of the RFID shopping card of this embodiment is as follows:

[0052] (1) Make a printing template. (2) Select suitable substrate materials of different thicknesses (usually PVC, etc.) and cut them into upper substrates 6 and lower substrates 7 respectively. (3) Open upper positioning holes 9, through grooves 8 and lower positioning holes 10 on the upper substrate 6 and lower substrate 7 respectively, and set a bonding indicator position 11 on the front of the lower substrate 7. (4) Place the printing template in an appropriate position and use a color printer to print on the front of the upper substrate 6 and the back of the lower substrate 7. (5) Bond the RFID card core 2 to the bonding indicator position 11 on the front of the lower substrate 7 with pressure-sensitive adhesive. (6) Stack the upper substrate 6 and the lower substrate 7 together. At this time, the RFID card core 2 is located in the through groove 8, and the upper substrate 6 and the lower substrate 7 are pressed together by applying pressure-sensitive adhesive on the back of the upper substrate 6 and the front of the lower substrate 7.

[0053] Example 3

[0054] This embodiment is an RFID shopping card reader of embodiment 1 or 2. The existing readers on the market are relatively large in size, and the components installed inside are installed in a disorderly manner. On the one hand, this does not conform to miniaturization, and on the other hand, the entire reader needs to be disassembled for maintenance.

[0055] Please refer to Figure 7 , Figure 7 This is a schematic diagram of the overall structure of the RFID shopping card reader provided in this embodiment. Figure 8 This is a bottom view of the cover plate of this embodiment. Figure 9 This is a schematic top view of the bottom plate of this embodiment. Figure 10 This is a schematic diagram of the structure of the metal partition and the cooling liquid heat conduction pipeline of this embodiment.

[0056] An RFID shopping card reader includes a cover plate 12, a bottom plate 13, a left side plate 14, a right side plate, a front side plate 15, and a rear side plate. The cover plate 12 is provided with a card insertion port 16. A camera 17 is mounted on the front of the cover plate 12. A portrait acquisition module 18 and an RFID identification module 19 are mounted on the back of the cover plate 12. The portrait acquisition module 18 is connected to the camera 17. A main control chip module 20 is mounted on the front of the bottom plate 13. The portrait acquisition module 18 and the RFID identification module 19 are each connected to the main control chip module 20.

[0057] Those skilled in the art should understand that the camera 17, portrait acquisition module 18, RFID identification module 19, and main control chip module 20 can be installed by adhesive or by other connection methods. There is no special limitation here, as long as the installation can be achieved.

[0058] Those skilled in the art should understand that the portrait acquisition module 18 , the RFID identification module 19 and the main control chip module 20 are all commercially available.

[0059] To read (use), the RFID shopping card reader of this embodiment is connected to a PC and a power supply. The PC forwards the card read command to the main control chip module 20 via the security control module SAM. The main control chip module 20 communicates with the shopping card information via the RFID identification module 19, decodes the read shopping card information through the security control module SAM, and returns it to the PC. When the card reader communicates with the shopping card, it transmits a set of electromagnetic waves of a fixed frequency to the shopping card. The shopping card contains an IC series resonant circuit whose frequency matches the frequency transmitted by the card reader. Under the excitation of the electromagnetic waves, the LC resonant circuit resonates, causing a charge to accumulate in the capacitor. A unidirectional electron pump is connected to the other end of this capacitor, transferring the charge from the capacitor to another capacitor for storage. When the accumulated charge reaches 2V, this capacitor can serve as a power source to provide operating voltage for other circuits, transmitting data from the card or receiving data from the reader. Therefore, when reading the shopping card, the card must be placed in the card reading area and not moved. This ensures a stable voltage within the card, thus ensuring proper card reading. The RFID recognition module 19 is a crucial element in data exchange between the reader and the shopping card. It wirelessly interacts with the shopping card information via an antenna. Its function is to first establish a high-frequency energy field to activate and power the shopping card, then modulate and transmit a signal to send data to the shopping card, and then receive and demodulate the response signal returned by the shopping card. When the PC software initiates a request for portrait capture, the camera 17 identifies the person and temporarily stores the data in the portrait capture module 18. This module then transmits the data to the PC via the security control module (SAM) and the main control chip module 20, completing a one-way data upload.

[0060] This embodiment improves the integration by installing the portrait acquisition module 18 and the RFID identification module 19 on the back of the cover 12 and installing the main control chip module 20 on the front of the base plate 13. On the other hand, it does not need to disassemble the entire reader for maintenance.

[0061] Furthermore, when the reader reads in large quantities and rapidly (such as during peak shopping season), a large amount of heat will be generated within the reader, affecting the service life of the acquisition module 18, RFID identification module 19, and main control chip module 20. To address this issue, the RFID shopping card reader is also provided with a metal partition 21, which has at least one cold liquid heat conduction pipe 22 embedded therein. The metal partition 21 is located between the cover plate 12 and the base plate 13. The cold liquid in the cold liquid heat conduction pipe 22 absorbs the heat generated by the acquisition module 18, RFID identification module 19, and main control chip module 20, preventing them from overheating. Mounting the acquisition module 18 and RFID identification module 19 on the cover plate 12 and the main control chip module 20 on the base plate 13 is more conducive to heat dissipation.

[0062] Furthermore, the cooling liquid heat conducting pipe 22 may be a square tube or a circular tube.

[0063] Furthermore, the cooling liquid heat conduction pipes 22 are arranged in parallel.

[0064] Furthermore, in order to increase the absorption amount, the distance between the inner tube top and the inner tube bottom of the cold liquid heat conduction pipe 22 is greater than the thickness of the metal partition 21.

[0065] Furthermore, to facilitate maintenance, the left side panel 14, front side panel 15, right side panel, and rear side panel are fixedly connected as a whole. The metal partition 21 is connected to the left side panel 14, front side panel 15, right side panel, and rear side panel respectively. The cover panel 12 is detachably connected to the upper surfaces of the left side panel 14, front side panel 15, right side panel, and rear side panel, and the bottom panel 13 is detachably connected to the lower surfaces of the left side panel 14, front side panel 15, right side panel, and rear side panel. When inspection and maintenance are required, the bottom panel 13 or cover panel 12 can be removed for inspection and maintenance.

[0066] Furthermore, a first threaded hole is provided at the edge of the cover plate 12, and a first corresponding threaded hole is provided at the top of the left side plate 14, the front side plate 15, the right side plate, and the rear side plate. When connecting, a first fastener (such as a bolt) passes through the first threaded hole and the first corresponding threaded hole respectively to connect the cover plate 12 to the left side plate 14, the front side plate 15, the right side plate, and the rear side plate. A second threaded hole is provided at the edge of the bottom plate 13, and a second corresponding threaded hole is provided at the bottom of the left side plate 14, the front side plate 15, the right side plate, and the rear side plate. When connecting, a second fastener (such as a bolt) passes through the second threaded hole and the second corresponding threaded hole respectively to connect the bottom plate 13 to the left side plate 14, the front side plate 15, the right side plate, and the rear side plate. When the cover plate 12 needs to be removed, the first fastener can be removed. When the bottom plate 13 needs to be removed, the second fastener can be removed.

[0067] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the above embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the above embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. An RFID shopping card reader, comprising a cover plate (12), a bottom plate (13), a left side plate (14), a right side plate, a front side plate (15) and a rear side plate, wherein a card insertion port (16) is provided on the cover plate (12), characterized in that: A camera (17) is installed on the front of the cover plate (12), a portrait acquisition module (18) and an RFID identification module (19) are installed on the back of the cover plate (12), the portrait acquisition module (18) is connected to the camera (17), and a main control chip module (20) is installed on the front of the base plate (13), the portrait acquisition module (18) and the RFID identification module (19) are respectively connected to the main control chip module (20).

2. The RFID shopping card reader according to claim 1, characterized in that: The RFID shopping card reader is further provided with a metal partition (21), in which at least one cold liquid heat conduction pipe (22) is embedded. The metal partition (21) is located between the cover plate (12) and the bottom plate (13).

3. The RFID shopping card reader according to claim 2, characterized in that: The cooling liquid heat conducting pipe (22) is a square pipe or a circular pipe.

4. The RFID shopping card reader according to claim 2, characterized in that: The distance between the inner tube top and the inner tube bottom of the cold liquid heat conduction pipe (22) is greater than the thickness of the metal partition (21).

5. The RFID shopping card reader according to claim 1, characterized in that: The left side plate (14), the front side plate (15), the right side plate and the rear side plate are fixedly connected as a whole; the metal partition plate (21) is respectively connected to the left side plate (14), the front side plate (15), the right side plate and the rear side plate; the cover plate (12) is detachably connected to the upper surfaces of the left side plate (14), the front side plate (15), the right side plate and the rear side plate; and the bottom plate (13) is detachably connected to the lower surfaces of the left side plate (14), the front side plate (15), the right side plate and the rear side plate.

6. The RFID shopping card reader according to claim 5, characterized in that: The edge of the cover plate (12) is provided with a first threaded hole, the tops of the left side plate (14), the front side plate (15), the right side plate and the rear side plate are provided with a first corresponding threaded hole, the edge of the bottom plate (13) is provided with a second threaded hole, and the bottoms of the left side plate (14), the front side plate (15), the right side plate and the rear side plate are provided with a second corresponding threaded hole.

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