Intelligent IC card and authentication system based on fingerprint recognition

Abstract

The present application proposes a smart IC card and authentication system based on fingerprint recognition. The smart IC card includes: a card body, provided with a groove; a fingerprint sensor, arranged in the groove, the fingerprint collection surface is exposed to the first surface of the card body through the notch of the groove; a plurality of first metal contact points, arranged in the card body and exposed to the first surface, each first metal contact point protrudes from the fingerprint collection surface, and these first metal contact points are arranged adjacent to two opposite sides of the groove; an IC chip, encapsulated in the card body and connected to the first metal contact points; a fingerprint chip, encapsulated in the card body and connected to the fingerprint sensor; a circuit board, the IC chip and the fingerprint chip are mounted on the circuit board. The present application can concentrate the first metal contact points of the fingerprint sensor and the IC chip in the area where the groove is set in the card body, thereby improving the integration of the smart IC card, with low material cost and strong anti-bending ability, and fingerprint recognition can be completed with only a single finger, which is convenient to operate.

Description

Technical Field

[0001] The present application relates to the technical field of smart IC (Integrated Circuit) cards, and in particular to a smart IC card and an authentication system based on fingerprint recognition. Background Art

[0002] Smart IC cards with fingerprint recognition function collect user fingerprints through integrated fingerprint sensors and perform fingerprint comparison to achieve user identity authentication, also known as the first level of authentication. After passing the first level of authentication, the account information of the smart IC card is read through the metal contact points of the IC card to perform password reading and verification (also known as the second level of authentication), account information interaction, etc. Take the bank IC card with fingerprint recognition function as an example, please refer to Figure 1 and Figure 2 As shown, all metal contact points 120 of the fingerprint sensor 110 and the IC chip of the bank IC card 100 are arranged in two different areas, for example, respectively on the left and right sides of the bank IC card 100, that is, the metal contact points 120 of the fingerprint sensor 110 and the IC chip 150 are laid flat along the surface where the card body 130 is located. Here, a longer wire 140 is required to connect the metal contact points 120 of the fingerprint sensor 110 and the IC chip 150 with the IC chip 150 encapsulated in the card body 130. However, the existence of such a long wire 140 will increase the material cost on the one hand, and on the other hand, the wire 140 may be disconnected due to external forces such as bending and breakage during use, thereby rendering the bank IC card 100 unusable and affecting its service life. In addition, during use of the existing bank IC card 100, since the bottom of one end of the bank IC card 100 pressed by the user's finger (generally the user's thumb) on the fingerprint sensor 110 is suspended in the air without any support, the user must hold the bank IC card 100 with another finger (generally the user's index finger) when pressing the finger. It can be seen that this operation method must rely on the user's two fingers at the same time to complete, and the operation is not very convenient, especially for users who are missing their thumbs. The operation is very inconvenient. Summary of the invention

[0003] In view of this, the present application provides a smart IC card and authentication system based on fingerprint recognition, which can improve the problems of high material cost, poor bending resistance, and fingerprint recognition relying on two fingers of the user at the same time caused by the fingerprint sensor and metal contact points being laid flat along the surface of the card body.

[0004] The present application provides a smart IC card based on fingerprint recognition, comprising:

[0005] The card body is provided with a groove, and the notch of the groove is located on the first surface of the card body;

[0006] A fingerprint sensor is disposed in the groove, and a fingerprint collection surface of the fingerprint sensor is exposed to the first surface of the card body through a notch of the groove;

[0007] A plurality of first metal contact points, which are arranged on the card body and exposed on the first surface, and each of the first metal contact points protrudes from the fingerprint collection surface, wherein a portion of the first metal contact points is arranged adjacent to a first side of the groove, and another portion of the first metal contact points is arranged adjacent to a second side of the groove, and the first side and the second side are arranged opposite to each other;

[0008] An IC chip is packaged in the card body and connected to each of the first metal contact points;

[0009] A fingerprint chip is encapsulated in the card body and connected to the fingerprint sensor;

[0010] A circuit board is packaged in the card body, and the IC chip and the fingerprint chip are mounted on the circuit board.

[0011] Optionally, the second surface of each of the first metal contact points protrudes from the first surface of the card body; along a direction perpendicular to the first surface, the fingerprint collection surface is arranged opposite to the second surface of the first metal contact point.

[0012] Optionally, the smart IC card also includes a plurality of conductive columns arranged in the card body, one end of the conductive column is arranged on the circuit board, and the other end is connected to the corresponding first metal contact point; along the direction perpendicular to the first surface, the orthographic projection of the conductive column is located within the orthographic projection of the corresponding connected first metal contact point.

[0013] Optionally, the other end of each conductive column protrudes from or is flush with the first surface of the card body.

[0014] Optionally, the smart IC card further comprises a flexible flat cable encapsulated in the card body, one end of the flexible flat cable is connected to the circuit board, and the other end of the flexible flat cable is connected to the corresponding first metal contact point.

[0015] Optionally, the IC chip and the fingerprint chip are packaged together through a chip sealing process and do not overlap on the circuit board.

[0016] Optionally, along a direction perpendicular to the first surface, the orthographic projections of the IC chip and the fingerprint chip are both located within the orthographic projection of the groove.

[0017] Optionally, the number of first metal contact points arranged adjacent to the first side edge and the second side edge is equal.

[0018] Optionally, along a direction perpendicular to the first surface, the groove is rectangular; the first side and the second side are length sides and / or width sides of the groove.

[0019] The present application provides an authentication system, comprising a card reader device and the above-mentioned smart IC card based on fingerprint recognition; the card reader device is provided with a second metal contact point, a card slot and an opening window, the card slot is used to allow the smart IC card to be inserted into the card reader device until the fingerprint collection surface is located in the card reader device and is fully exposed through the opening window, and the second metal contact point is in one-to-one contact with the first metal contact point of the smart IC card.

[0020] As described above, in the smart IC card of the present application, the fingerprint sensor is arranged in the groove of the card body and the fingerprint collection surface is exposed through the notch of the groove. The multiple first metal contact points of the IC chip are arranged along the two opposite sides of the groove, and each first metal contact point protrudes from the fingerprint collection surface. Here, along the thickness direction of the card body, the multiple first metal contact points of the fingerprint sensor and the IC chip are stacked. Compared with the existing fingerprint sensor and metal contact points that are flatly arranged along the surface where the card body is located, the present application can concentrate the multiple first metal contact points of the fingerprint sensor and the IC chip in the area where the groove is set in the card body. , which improves the integration of the smart IC card, helps to reduce the material cost required for connecting the fingerprint sensor and the first metal contact point to the chip, and improves the bending resistance, which helps to extend the service life; in addition, when the smart IC card is inserted into the card reader, the card reader (the second metal contact point) will contact the first metal contact point of the smart IC card, thereby holding the smart IC card. When collecting fingerprints, the user only needs to press a single finger on the fingerprint collection surface of the fingerprint sensor. This operation method avoids the situation where one finger needs to hold the smart IC card with another finger when pressing, which can bring great convenience to users.

[0021] Furthermore, the present application can introduce conductive posts to replace traditional wires (such as FPC cables), so that the first metal contact point of the IC chip and the electrical connection point of the circuit board are set on the same side of the fingerprint sensing area, which is convenient for the assembly of the first metal contact point of the smart IC card. In addition, compared with the traditional wire connection that is easily broken due to bending, the connection method based on the conductive post of the present application has strong anti-bending ability, more stable electrical connection, and helps to extend the service life. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic diagram of the front structure of an existing bank IC card with fingerprint recognition function;

[0023] Figure 2 yes Figure 1The structure cross-sectional view of the bank IC card along the thickness direction is shown;

[0024] Figure 3 It is a front structural schematic diagram of a smart IC card based on fingerprint recognition according to the first embodiment of the present application;

[0025] Figure 4 yes Figure 3 The local structure cross-sectional view of the smart IC card along the thickness direction is shown;

[0026] Figure 5 yes Figure 3 The back structural diagram of an embodiment of a smart IC card shown;

[0027] Figure 6 2 is a schematic diagram of the front structure of a smart IC card based on fingerprint recognition according to the second embodiment of the present application;

[0028] Figure 7 2 is a schematic diagram of the front structure of a smart IC card based on fingerprint recognition according to the third embodiment of the present application;

[0029] Figure 8 4 is a schematic diagram of the front structure of a smart IC card based on fingerprint recognition according to the fourth embodiment of the present application;

[0030] Fig. 9 It is a structural schematic diagram of a smart IC card in an embodiment of the present application when it is inserted into a card reading device.

[0031] Bank IC card 100

[0032] Fingerprint sensor 110, metal contact point 120, card body 130, wire 140, IC chip 150

[0033] First direction x, second direction y, third direction z

[0034] Card body 1, groove 10

[0035] Fingerprint sensor 2, fingerprint collection surface 20

[0036] First metal contact point 3

[0037] IC chip 4

[0038] Fingerprint chip 5

[0039] Circuit board 6, conductive column 61

[0040] Card reading device 7, card slot 70, window 71, display screen 72 DETAILED DESCRIPTION

[0041] In order to solve the above technical problems existing in the prior art, in the smart IC card and authentication system based on fingerprint recognition of the present application, the fingerprint sensor is arranged in the groove of the card body and the fingerprint collection surface is exposed through the notch of the groove. The multiple first metal contact points of the IC chip are arranged along the two opposite sides of the groove respectively, and each first metal contact point protrudes from the fingerprint collection surface, that is, the multiple first metal contact points of the fingerprint sensor and the IC chip are stacked and arranged along the thickness direction of the card body, which is equivalent to concentrating the multiple first metal contact points of the fingerprint sensor and the IC chip in the area where the groove is set in the card body, thereby improving the integration of the smart IC card; in addition, when the smart IC card is inserted into the card reading device, the card reading device (the second metal contact point) will contact the first metal contact point of the smart IC card, thereby holding the smart IC card, and the user only needs to press a single finger to complete the fingerprint recognition, which is very convenient to operate.

[0042] The specific form of the parameters such as shape, quantity, size, etc. of any one of the fingerprint sensor, the first metal contact point, and the IC chip can be determined according to the adaptability required by the actual scenario.

[0043] In order to make the purpose, technical solutions and advantages of the present application clearer, the technical solutions of the present application will be clearly described below in conjunction with specific embodiments and corresponding drawings. Obviously, the embodiments described below are only part of the embodiments of the present application, not all of the embodiments. In the absence of conflict, the following embodiments and their technical features can be combined with each other and also belong to the technical solutions of the present application.

[0044] In the description of the embodiments of the present application, terms such as "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", and "counterclockwise" 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 technical solutions of the corresponding embodiments, rather than indicating or implying that a device or element must have a specific orientation, be constructed and operated in a specific orientation, and should not be understood as a limitation on the present application.

[0045] See also Figure 3 and Figure 4 As shown, the smart IC card of this example includes a card body 1 , a fingerprint sensor 2 , a plurality of first metal contact points 3 , an IC chip 4 , a fingerprint chip 5 and a circuit board 6 .

[0046] For ease of description and understanding, the smart IC card is parallel to the paper surface and is used as a reference. Figures 3 to 5In the placement orientation shown, the length direction of the smart IC card is called the first direction x, the height direction is called the second direction y, and the thickness direction is called the third direction z. The first direction x, the second direction y and the third direction z are perpendicular to each other and can be regarded as the three coordinate axes of the three-dimensional rectangular coordinate system. It should be understood that the so-called perpendicularity in the whole application does not require that the angle between the two must be 90°, but allows a deviation of, for example, ±10°, that is, the so-called perpendicularity can be understood as the angle between any two directions is 80° to 100°. Similarly, the so-called parallelism in the whole application does not require that the angle between the two must be 0° or 180°, but allows a deviation of, for example, ±10°, that is, the so-called parallelism can be understood as the angle between any two directions is 0° to 10° or 170° to 190°.

[0047] The card body 1 is the main part of the smart IC card. Taking the smart IC card as a bank card as an example, the card body 1 is a sheet-like structure as a whole, and its material includes but is not limited to one or more of PVC (polyvinyl chloride), ABS (acrylonitrile-butadiene-styrene copolymer), and PET (polyethylene terephthalate); PVC, as a plastic material, has good mechanical hardness and corrosion resistance and low cost; ABS has high mechanical strength and durability, which can make the smart IC card have a longer service life; PET has good high temperature resistance, which can make the smart IC card suitable for high temperature environment.

[0048] The card body 1 is provided with a groove 10, the notch (i.e., opening) of the groove 10 is located on the first surface of the card body 1, and the first surface can be regarded as the front of the smart IC card. When observed along the line of sight of the third direction z, the orthographic projection (i.e., the shape of the notch) of the groove 10 can be a rounded rectangle or a rectangle. This article takes a rectangle as an example for illustration and description.

[0049] Optionally, along the thickness direction of the card body 1, that is, along the third direction z, the groove 10 does not penetrate the card body 1, and there is still a certain distance between the bottom of the groove 10 and the back of the card body 1. Figure 5 As shown, the back side of the smart IC card can be the same as the traditional structure.

[0050] The fingerprint sensor 2 is arranged in the groove 10, and the fingerprint collection surface 20 of the fingerprint sensor 2 is exposed to the first surface of the card body 1 through the notch of the groove 10. The fingerprint collection surface 20 is used to receive the pressure of the user's finger, so as to collect the fingerprint of the user's finger by contacting the user's finger.

[0051] In one example, the fingerprint collection surface 20 can be lower than the first surface of the card body 1, which is conducive to reducing the risk of the fingerprint collection surface 20 being scratched due to contact with other objects. The height difference between the fingerprint collection surface 20 and the first surface, that is, the spacing along the third direction z, can be determined according to actual needs, for example, according to the thickness and flexibility of the card body 1, as long as it does not affect the effective collection of fingerprints. In other examples, the fingerprint collection surface 20 can also be flush with the first surface of the card body 1.

[0052] A plurality of first metal contact points 3 are disposed on the card body 1 and exposed on the first surface of the card body 1, and each first metal contact point 3 protrudes from the fingerprint collection surface 20. The first metal contact point 3 is used to contact the metal contact point (referred to as the "second metal contact point") of the card reader device, so that the card reader device can read the information of the smart IC card and interact with the smart IC card. A portion of the first metal contact points 3 is arranged adjacent to the first side of the groove 10, and another portion of the first metal contact points 3 is arranged adjacent to the second side of the groove 10, and the first side and the second side are arranged oppositely; that is, these first metal contact points 3 are distributed on two opposite sides of the groove 10, and are arranged along the extension direction of each side.

[0053] In one example, when the smart IC card is provided with an even number of first metal contact points 3, the number of first metal contact points 3 arranged adjacent to the first side and the second side can be equal. The total number of first metal contact points 3 can be determined according to actual needs; for example, Figure 3 The smart IC card shown is provided with eight first metal contact points 3, four first metal contact points 3 are provided adjacent to the first side, and four first metal contact points 3 are also provided adjacent to the second side; for another example, Figure 6 The smart IC card shown is provided with six first metal contact points 3, three first metal contact points 3 are provided adjacent to the first side, and three first metal contact points 3 are also provided adjacent to the second side.

[0054] For the case where an odd number of first metal contact points 3 are provided on the smart IC card, the number of first metal contact points 3 arranged adjacent to the first side and the second side can differ by one, or can be equal, but the remaining first metal contact point 3 can be arranged adjacent to the third side of the groove 10, which is a side vertically connected to the first side and the second side.

[0055] On any side edge adjacent to the groove 10 , the distances between any adjacent first metal contact points 3 may be equal, thereby achieving an equidistant arrangement of the first metal contact points 3 .

[0056] like Figure 3 and Figure 6As shown, along the direction perpendicular to the first surface, that is, along the third direction z, the orthographic projection of the groove 10 is a rectangle; the first side and the second side can be the length sides of the groove 10, and the first metal contact points 3 on either side of the groove 10 are arranged in sequence along the first direction x. In other examples, for example Figure 7 and Figure 8 As shown, the first side and the second side can be the width side of the groove 10, and the first metal contact points 3 on either side of the groove 10 are arranged in sequence along the second direction y. It should be understood that the arrangement direction of the first metal contact points 3 on either side of the groove 10 should be determined according to the arrangement mode of the second metal contact points in the card reading device. For example, the arrangement mode of the metal contact points of the two can be the same, and the first metal contact points 3 are arranged one by one with the second metal contact points.

[0057] like Figure 4 As shown, the IC chip 4, the fingerprint chip 5 and the circuit board 6 are all packaged in the card body 1. In actual scenarios, the three can be completely wrapped and not exposed. Each first metal contact point 3 is connected to the IC chip 4, the fingerprint chip 5 is connected to the fingerprint sensor 2, and the IC chip 4 and the fingerprint chip 5 are mounted on the circuit board 6. The circuit board 6 can be a PCB (Printed Circuit Board) or an FPC (Flexible Printed Circuit) or a combination of the two, and can be mounted using SMT (Surface Mounted Technology).

[0058] In one example, the IC chip 4 and the fingerprint chip 5 can be packaged together by a chip sealing process, so as to be a single chip as a whole, which is convenient for mounting on the circuit board 6. Optionally, along the direction perpendicular to the first surface of the card body 1, that is, along the line of sight of the third direction z, the orthographic projection of the packaged single chip can be located within the orthographic projection of the groove 10. In view of the thin thickness of the card body 1, the IC chip 4 and the fingerprint chip 5 can be non-overlapping on the circuit board 6.

[0059] See also Figure 3 and Figure 4 As shown, along the thickness direction of the card body 1, that is, along the third direction z, the fingerprint sensor 2 and the multiple first metal contact points 3 of the IC chip 4 are equivalent to a stacked arrangement. Figure 1 and Figure 2The existing fingerprint sensor 110 and metal contact points 120 shown are arranged flatly along the surface where the card body 130 is located. The present application can concentrate the fingerprint sensor 2 and multiple first metal contact points 3 of the IC chip 4 in a smaller area. For example, along the direction perpendicular to the first surface, the orthographic projections of the IC chip 4 and the fingerprint chip 5 are both located within the orthographic projection of the groove 10. At this time, the fingerprint sensor 2 and multiple first metal contact points 3 are concentrated in an area where the groove 10 is set in the card body 1, which can improve the integration of the smart IC card, help reduce the material cost required for connecting the fingerprint sensor 2 and the first metal contact points 3 to the chip, and improve the bending resistance, which helps to extend the service life.

[0060] Also, see Figure 3 , Figure 4 and Fig. 9 As shown, Fig. 9 7 is a schematic diagram of a state where the smart IC card of the present application is inserted into a card reader 7. The card reader 7 is provided with a second metal contact point (not shown), a card slot 70 and a window 71. The insertion port of the card slot 70 can be located on the side of the card reader 7. The window 71 is connected to the card slot 70 and is located on the large surface of the card reader 7. The large surface is vertically connected to the side. For example, the card reader 7 can be provided with a display screen 72 on a surface. The smart IC card is inserted into the card reader 7 through the opening of the card slot 70 until the fingerprint collection surface 20 is located in the card reader 7 and is completely exposed through the window 71, and the second metal contact point is in one-to-one contact with the first metal contact point 3 of the smart IC card.

[0061] When the smart IC card is inserted into the card reader 7, the second metal contact point of the card reader 7 contacts the first metal contact point 3 of the smart IC card, thereby holding the smart IC card. When collecting fingerprints, the user's single finger presses on the fingerprint collection surface 20 of the fingerprint sensor 2, and the fingerprint collection surface 20 collects the fingerprint image of the single finger. The fingerprint sensor 2 transmits the fingerprint image to the fingerprint chip 5, and the fingerprint chip 5 analyzes the fingerprint features of the fingerprint image and compares them with the pre-stored fingerprint features. When they are consistent, it is determined that the user identity has passed the authentication, also known as the first authentication, and the first authentication is completed by the smart IC card alone; then, the IC chip 4 transmits the account information such as the card number of the smart IC card to the card reader 7 through multiple first metal contacts 3, so that the card reader 7 completes the comparison between the password entered by the user and the password corresponding to the account information. When they are consistent, it is determined that the password entered by the user has passed the second authentication. The present application changes the fingerprint sensing area (i.e., fingerprint collection surface 20) of the smart IC card from outside the traditional card reader 7 to inside the card reader 7, and uses the card reader 7 to hold the smart IC card to perform fingerprint image collection and recognition. This operation method avoids the situation where one finger needs to hold the smart IC card with another finger when pressing, which can bring great convenience to the user.

[0062] Please continue reading Figure 3 and Figure 4 As shown, the second surface of each first metal contact point 3 (i.e., the exposed surface of the first metal contact point 3) can protrude from the first surface of the card body 1; along a direction perpendicular to the first surface of the card body 1, i.e., along the third direction z, the fingerprint collection surface 20 of the fingerprint sensor 2 is arranged opposite to the second surface of the first metal contact point 3. Figure 4 In the example shown, each first metal contact point 3 is disposed on the first surface of the card body 1, and in this case, each first metal contact point 3 can be considered to be completely disposed outside the card body 1. In other examples, the second surface of each first metal contact point 3 can be flush with the first surface of the card body 1, that is, each first metal contact point 3 can be embedded in the card body 1; of course, the second surface of each first metal contact point 3 can also be recessed in the first surface of the card body 1, which needs to be determined according to the adaptability of the usage scenario.

[0063] In one example, if Figure 4 As shown, a plurality of conductive posts 61 are arranged in the card body 1 of the smart IC card. For any conductive post 61, one end of the conductive post 61 is arranged on the circuit board 6 and electrically connected to the circuit board 6, and the other end is electrically connected to the corresponding first metal contact point 3. In other words, the present application can realize the electrical connection between the first metal contact point 3 and the circuit board 6 through the conductive post 61.

[0064] Optionally, along a direction perpendicular to the first surface, that is, along a third direction z, the orthographic projection of the conductive pillar 61 is located within the orthographic projection of the correspondingly connected first metal contact point 3 .

[0065] For the example where each first metal contact point 3 is completely arranged outside the card body 1, the other end of each conductive column 61 (i.e., the end electrically connected to the first metal contact point 3) can protrude from the first surface of the card body 1, and of course can also be flush with the first surface of the card body 1.

[0066] exist Figure 4 In the example shown, a conductive column 61 is introduced to replace the traditional wire 140 (such as an FPC cable), and the first metal contact point 3 of the IC chip 4 and the electrical connection point of the circuit board 6 are arranged on the same side of the fingerprint sensing area, which facilitates the assembly of the metal contact point 3 of the smart IC card. In addition, compared with the traditional wire 140 connection that is easily broken due to bending, the connection method based on the conductive column 61 of the present application has strong anti-bending ability, more stable electrical connection, and helps to extend the service life.

[0067] Optionally, the conductive pillar 61 may be a copper pillar.

[0068] Of course, in other examples, the smart IC card can also achieve electrical connection between the first metal contact point 3 and the circuit board 6 through a wire, that is, the smart IC card includes a flexible flat cable encapsulated in the card body 1, one end of the flexible flat cable is connected to the circuit board 6, and the other end is connected to the corresponding first metal contact point 3.

[0069] An embodiment of the present application also provides an authentication system, which includes a card reader and a smart IC card based on fingerprint recognition, wherein the card reader is provided with a second metal contact point, a card slot and a window, wherein the card slot is used to allow the smart IC card to be inserted into the card reader until the fingerprint collection surface of the smart IC card is located in the card reader and is fully exposed through the window, and the second metal contact point is in one-to-one contact with the first metal contact point of the smart IC card.

[0070] The card reading device can refer to the aforementioned Fig. 9 The card reading device 7 shown, the smart IC card can be any of the smart IC cards in the above examples, therefore, the authentication system at least has the beneficial effects that can be produced by the smart IC card in the corresponding example, which will not be described in detail here.

[0071] It should be understood that the card reading device and the smart IC card provided in the embodiments of the present application are complete devices respectively, and also have the corresponding structures of known devices, which will not be described one by one here.

[0072] The above descriptions are only some embodiments of the present application, and are not intended to limit the patent scope of the present application. For ordinary technicians in this field, all equivalent structural changes made using the contents of this specification and drawings are also included in the patent protection scope of the present application.

[0073] Although the terms "first, second", etc. are used herein to describe various information, such information should not be limited to these terms. These terms are only used to distinguish information of the same type from each other. In addition, the singular forms "one", "an", and "the" are intended to include plural forms as well. The terms "or" and "and / or" are interpreted as inclusive, or mean any one or any combination. Only when the combination of elements, functions, steps, or operations is inherently mutually exclusive in some way, an exception to this definition will occur.

Claims

1. A smart IC card based on fingerprint recognition, characterized in that: include: The card body is provided with a groove, and the notch of the groove is located on the first surface of the card body; A fingerprint sensor is disposed in the groove, and a fingerprint collection surface of the fingerprint sensor is exposed to the first surface of the card body through a notch of the groove; A plurality of first metal contact points are arranged on the card body, and the second surface of each of the first metal contact points protrudes from the first surface. The fingerprint collection surface is arranged opposite to the second surface of the first metal contact point in a direction perpendicular to the first surface. Each of the first metal contact points protrudes from the fingerprint collection surface. The fingerprint sensor and the plurality of first metal contact points are arranged in a stacked manner. A portion of the first metal contact points is arranged adjacent to a first side of the groove, and another portion of the first metal contact points is arranged adjacent to a second side of the groove, the first side and the second side are arranged opposite to each other, and the distance between any adjacent first metal contact points on any side adjacent to the groove is equal; An IC chip is packaged in the card body and connected to each of the first metal contact points; A fingerprint chip is encapsulated in the card body and connected to the fingerprint sensor; A circuit board, encapsulated in the card body, on which the IC chip and the fingerprint chip are mounted; A plurality of conductive posts are disposed in the card body, the other end of each conductive post protrudes from or is flush with the first surface of the card body, one end of each conductive post is disposed on the circuit board, and the other end is connected to the corresponding first metal contact point; Along a direction perpendicular to the first surface, an orthographic projection of the conductive column is located within an orthographic projection of a correspondingly connected first metal contact point.

2. The smart IC card based on fingerprint recognition according to claim 1 is characterized in that: The smart IC card also includes a flexible flat cable encapsulated in the card body, one end of the flexible flat cable is connected to the circuit board, and the other end is connected to the corresponding first metal contact point.

3. The smart IC card based on fingerprint recognition according to claim 1 is characterized in that: The IC chip and the fingerprint chip are packaged together through a chip sealing process and do not overlap on the circuit board.

4. The smart IC card based on fingerprint recognition according to claim 1 or 3, characterized in that: Along a direction perpendicular to the first surface, the orthographic projections of the IC chip and the fingerprint chip are both located within the orthographic projection of the groove.

5. The smart IC card based on fingerprint recognition according to claim 1 is characterized in that: The number of first metal contact points arranged adjacent to the first side edge and the second side edge is equal.

6. The smart IC card based on fingerprint recognition according to claim 1, characterized in that: Along a direction perpendicular to the first surface, the groove is rectangular; The first side and the second side are length sides of the groove, or the first side and the second side are width sides of the groove.

7. An authentication system, characterized in that: A card reader and a fingerprint recognition-based smart IC card as claimed in any one of claims 1 to 6; The card reader device is provided with a second metal contact point, a card slot and an opening window, wherein the card slot is used to allow the smart IC card to be inserted into the card reader device until the fingerprint collection surface is located in the card reader device and is completely exposed through the opening window, and the second metal contact point is in one-to-one contact with the first metal contact point of the smart IC card.

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