TWI667617B - Fingerprint identification smart card - Google Patents

Abstract

The invention provides a fingerprint identification smart card, comprising a card body, a transaction processing unit, a switch unit and a fingerprint identification unit; the transaction processing unit is disposed on the card body; the switch unit is disposed on the card body And the circuit is connected to the transaction processing unit; the fingerprint identification unit is disposed on the card body and electrically connected to the transaction processing unit and the switch unit. Thereby, the external power can be obtained by the transaction processing unit during use, and the fingerprint identification unit receives and recognizes the fingerprint data of the card holder, so that the switch unit starts the transaction processing unit to perform the transaction with the reading device according to the identification result of the fingerprint data. Or close the transaction processing unit can not execute the transaction, and achieve the security and convenience of the transaction.

Description

Fingerprint identification smart card

The invention relates to a fingerprint identification smart card, in particular to a smart card with fingerprint identification.

According to the commonly used electronic smart cards, such as: financial cards, credit cards, stored value cards, leisure cards, etc., most of the current transactions are passwords as security certification.

However, in the case of a conventional electronic transaction card, since the card itself does not have any cardholder or consumer identification mechanism, there are often problems such as being stolen or lost after being stolen and used, and when the transaction proceeds, Consumers can usually only tell the card whether the card has completed the transaction, but cannot display the transaction status by the card, causing the card to be stolen after the transaction or during the transaction. In addition, problems such as lost passwords, forgotten passwords, and even password thefts may occur during use, which makes the security card's security and convenience in trading.

Therefore, how to invent a fingerprint identification smart card so that it can reach the fingerprint data of the identifiable cardholder, and judge the execution of the transaction according to the identification result of the fingerprint data, so as to improve the security and convenience of the transaction. The purpose, in order to effectively improve the lack of custom, will be the active disclosure of the present invention.

In view of the shortcomings of the above-mentioned prior art, the inventor feels that he has not perfected it, exhausted his mind and researched and overcome it, and developed a fingerprint identification smart card, in order to receive and identify it during use. Knowing the fingerprint information of the cardholder, and judging whether the transaction can be performed according to the identification result of the fingerprint data, or the transaction cannot be executed, the purpose of improving the security and convenience of the transaction is achieved.

To achieve the above and other objects, the present invention provides a fingerprint identification smart card, comprising: a card body, a transaction processing unit, a switch unit, and a fingerprint identification unit; the transaction processing unit is disposed on the card body The transaction processing unit can be used as a power supply and used for transaction with a reading device; the switch unit is disposed on the card body and electrically connected to the transaction processing unit, and the switch unit can turn the transaction processing unit on or off; The fingerprint identification unit is disposed on the card body and is electrically connected to the transaction processing unit and the switch unit. The fingerprint identification unit receives and recognizes the fingerprint data of the card holder, so that the switch unit is turned on according to the identification result of the fingerprint identification unit or Close the transaction processing unit.

In the fingerprint identification smart card, the transaction processing unit includes a contact chip, a signal line group and a power management module, and the contact chip system is connected to the signal line group and the power management module, the signal The line group circuit is connected to the switch unit, and the power management module is connected to the switch unit and the fingerprint identification unit.

In the above fingerprint identification smart card, the transaction processing unit includes a non-contact chip, a signal line group, a power management module, an antenna and a storage capacitor, and the non-contact chip system circuit connects the signal line group. And the antenna, the signal line group circuit is connected to the switch unit, and the power management module is connected to the antenna, the storage capacitor, the switch unit and the fingerprint identification unit.

In the fingerprint identification smart card, the transaction processing unit includes a dual interface chip, a signal line group, a power management module, an antenna, and a storage capacitor. The dual interface chip system is connected to the signal line group. a power management module and the antenna, the signal line group circuit is connected to the switch unit, The power management module is connected to the antenna, the storage capacitor, the switch unit and the fingerprint identification unit.

In the above fingerprint identification smart card, the storage capacitor is a hard super capacitor or a flexible super capacitor.

In the above fingerprint identification smart card, the transaction processing unit includes a contact chip, a signal line group, a power management module and a secondary battery, and the contact chip system circuit connects the signal line group and the power management The module, the signal line group circuit is connected to the switch unit, and the power management module is connected to the secondary battery, the switch unit and the fingerprint identification unit.

In the above fingerprint identification smart card, the transaction processing unit includes a non-contact chip, a signal line group, a power management module, an antenna and a secondary battery, and the non-contact chip system circuit connects the signal line group. And the antenna, the signal line group circuit is connected to the switch unit, and the power management module is connected to the antenna, the secondary battery, the switch unit and the fingerprint identification unit.

In the fingerprint identification smart card, the transaction processing unit includes a dual interface chip, a signal line group, a power management module, an antenna, and a secondary battery. The dual interface chip system is connected to the signal line group. The power management module and the antenna are connected to the switch unit, and the power management module is connected to the antenna, the secondary battery, the switch unit and the fingerprint identification unit.

In the above fingerprint identification smart card, the fingerprint identification smart card according to claim 1, wherein the switch unit comprises a metal oxide semiconductor field effect transistor (MOSFET), a diode (Diode), a complex resistor, a plurality of capacitors and a Bipolar Junction Transistor (BJT), the metal oxide semiconductor field effect transistor system is connected to the fingerprint identification unit, the second a pole system is connected to the metal oxide semiconductor field effect transistor, and the resistors and the capacitors are respectively connected to the metal oxide semiconductor field effect transistor, and the double carrier junction surface crystal system is connected to the diode, one of which The resistor is coupled to one of the capacitors, and the bipolar junction junction crystal system is additionally coupled to the transaction processing unit.

In the above fingerprint identification smart card, the switch unit includes a metal oxide semiconductor field effect transistor (MOSFET), a diode (Diode), a complex resistor, a complex capacitor, and a double carrier junction transistor ( Bipolar Junction Transistor (BJT), the metal oxide semiconductor field effect transistor system is connected to the fingerprint identification unit, the diode system is connected to the metal oxide semiconductor field effect transistor, and the resistors and the capacitors are respectively connected to the metal An oxide semiconductor field effect transistor, the bipolar junction junction crystal system is connected to the diode, one of the resistors and one of the capacitors, and the bipolar junction junction crystal system is connected to the transaction processing unit.

Thereby, the fingerprint identification smart card of the present invention can obtain external power by the transaction processing unit during use, and receive and recognize the fingerprint data of the card holder by the fingerprint identification unit, so that the switch unit starts the transaction processing according to the identification result of the fingerprint data. The unit trades with the reading device, or closes the transaction processing unit and cannot execute the transaction, thereby achieving the purpose of improving the security and convenience of the transaction.

1‧‧‧ card body

2‧‧‧Transaction Processing Unit

21‧‧‧Contact wafer

22‧‧‧Signal line group

23‧‧‧Power Management Module

24‧‧‧ Non-contact wafer

25‧‧‧Antenna

26‧‧‧ storage capacitor

27‧‧‧Double interface wafer

28‧‧‧Secondary battery

3‧‧‧Switch unit

31‧‧‧Metal Oxide Semiconductor Field Effect Transistor

32‧‧‧ diode

33‧‧‧resistance

34‧‧‧ Capacitance

35‧‧‧Double carrier junction transistor

4‧‧‧Finger identification unit

Fig. 1 is a schematic view showing the appearance of a first embodiment of the present invention.

Fig. 2 is a block diagram showing a first embodiment of the present invention.

Fig. 3 is a block diagram showing a switch unit according to a first embodiment of the present invention.

Fig. 4 is a block diagram showing a second embodiment of the present invention.

Fig. 5 is a block diagram showing a switch unit of a second embodiment of the present invention.

Fig. 6 is a block diagram showing a third embodiment of the present invention.

Fig. 7 is a block diagram showing a fourth embodiment of the present invention.

Fig. 8 is a block diagram showing a fifth embodiment of the present invention.

Fig. 9 is a block diagram showing a sixth embodiment of the present invention.

In order to fully understand the objects, features and advantages of the present invention, the present invention will be described in detail by the following specific embodiments and the accompanying drawings.

Referring to FIG. 1 to FIG. 3, the present invention is a fingerprint identification smart card, which includes at least a card body 1, a transaction processing unit 2, a switch unit 3, and a fingerprint recognition unit 4.

The card body 1 carries the transaction processing unit 2, the switch unit 3, and the fingerprint recognition unit 4.

The transaction processing unit 2 is disposed on the card body 1. The transaction processing unit 2 can be used as a power supply and used to conduct transactions with a reading device (not shown).

The switch unit 3 is disposed on the card body 1 and is electrically connected to the transaction processing unit 2, and the switch unit 3 can turn the transaction processing unit 2 on or off.

The fingerprint identification unit 4 is disposed on the card body 1 and is electrically connected to the transaction processing unit 2 and the switch unit 3. The fingerprint recognition unit 4 receives and recognizes fingerprint data of the user, so that the switch unit 3 is based on the fingerprint identification unit. The identification result turns the transaction processing unit 2 on or off.

When the present invention conducts a transaction, the reading device can provide power to the transaction processing unit 2, whereby the switch unit 3 and the fingerprint are provided by the transaction processing unit 2 after acquiring external power. Knowing the power required by the unit 4, the card holder contacts the finger (the finger of the original preset fingerprint) to the fingerprint recognition unit 4, so that the fingerprint recognition unit 4 receives the fingerprint and then recognizes the fingerprint, and confirms that the fingerprint is the card. When the person is himself, the fingerprint recognition unit 4 controls the switch unit 3 to be in an open state, and causes the switch unit 3 to open the transaction processing unit 2 for transaction. On the other hand, when the fingerprint recognition unit 4 receives the fingerprint and recognizes it, and recognizes it as an error (the fingerprint is not the card holder himself), the fingerprint recognition unit 4 controls the switch unit 3 to be in a closed state, so that the The switching unit 3 closes the transaction processing unit 2 and cannot execute the transaction. And to achieve the security and convenience of the transaction.

In an embodiment of the present invention, the transaction processing unit 2 includes a contact chip 21, a signal line group 22, and a power management module 23. The contact chip 21 is electrically connected to the signal line group 22 and the The power management module 23 is connected to the switch unit 3 by a circuit line group 22, and the power management module 23 is connected to the switch unit 3 and the fingerprint recognition unit 4. Therefore, the present invention constitutes a battery-free fingerprint identification smart card.

The signal line group 22 includes at least a power line (VCC), a ground line (GND), a reset signal line (RST), a clock signal line (CLK), and a data transmission signal line (I/O) (not shown). In the present invention, the ground line, the reset signal line, the clock signal line, and the data transmission signal line are connected to the switch unit 3 as an embodiment, and the signal line group 22 can be used according to actual needs. The different signal lines are connected to the switching unit 3 in cooperation with each other.

When the present invention performs a contact transaction, the card holder can insert the card body 1 into the reading device (not shown) to electrically contact the contact chip 21 with the reading device, thereby allowing the reading device to pass through. The contact wafer 21 is powered to generate the required power to the contact wafer 21 of the transaction processing unit 2, and the voltage of the power management module 23 is stabilized, so that external power can be obtained. The power required by the switch unit 3 and the fingerprint recognition unit 4 is provided by the power management module 23 of the transaction processing unit 2, and the card holder can contact the finger (the finger of the original preset fingerprint) to the fingerprint recognition unit 4 After the fingerprint recognition unit 4 receives the fingerprint and recognizes the fingerprint, the fingerprint recognition unit 4 controls the switch unit 3 to be in an open state, so that the signal line group 22 is The ground line and the reset signal line are not connected to each other (i.e., separated from each other and do not interfere with each other), so that the switch unit 3 maintains normal operation and the transaction processing unit 2 is turned on for transaction.

On the other hand, when the fingerprint recognition unit 4 receives the fingerprint and recognizes it, and recognizes it as an error (the fingerprint is not the card holder himself), the fingerprint recognition unit 4 controls the switch unit 3 to be in a closed state, so that the The ground line of the signal line group 22 and the reset signal line are connected to each other, causing the ground line and the reset signal line to be broken and interfere with each other to operate normally, thereby causing the switch unit 3 to close the transaction processing unit 2 and fail to execute the transaction. In order to achieve the security and convenience of the transaction.

In addition, when the fingerprint identification unit 4 sets the initial state of the fingerprint of the card holder, the fingerprint recognition unit 4 controls the switch unit 3 to be in a closed state, and the ground line and the reset signal of the signal line group 22 are set. The lines are connected to each other, causing the ground line and the reset signal line to be broken and interfere with each other to operate normally, thereby causing the switch unit 3 to close the transaction processing unit 2 to be in a state in which the transaction cannot be executed.

In an embodiment of the present invention, the switching unit 3 (shown in FIG. 3) includes a metal oxide semiconductor field effect transistor 31 (MOSFET), a diode 32 (Diode), a complex resistor 33, and a plurality of a capacitor 34 and a bipolar junction transistor 35 (BJT), the metal oxide semiconductor field effect transistor 31 is connected to the fingerprint identification unit 4, and the diode 32 is connected to the metal oxide semiconductor Field effect transistor 31, the resistors 33 and the capacitors 34 are respectively connected to the metal oxide half The conductor field effect transistor 31 is connected to the diode 32, one of the resistors 33 and one of the capacitors 34, and the bipolar junction transistor 35 is additionally connected by a resistor 33. The transaction processing unit 2. When the bipolar junction transistor 35 is coupled to the transaction processing unit 2 in conjunction with the resistor 33, it is connected to the ground line, the reset signal line, the clock signal line, and the data transmission signal line of the signal line group 22. Not shown). The above components are only one embodiment of the switch unit 3, and the connection manner of each component can be changed as needed. In addition, the switch unit 3 can also be an integrated circuit or a single chip in actual use, so as to meet the needs of practical applications.

In an embodiment of the invention, the fingerprint identification unit 4 is a hard fingerprint identification unit or a flexible fingerprint identification unit. This allows for different usage and production needs.

Referring to FIG. 4 and FIG. 5, as shown in the figure, in the second embodiment of the present invention, the transaction processing unit 2 includes a non-contact chip 24, a signal line group 22, and a power management module 23. An antenna 25 and a storage capacitor 26 are connected to the signal line group 22 and the antenna 25, and the signal line group 22 is connected to the switch unit 3, and the power management module 23 is connected. The antenna 25, the storage capacitor 26, the switch unit 3 and the fingerprint recognition unit 4. The storage capacitor 26 is a hard super capacitor or a flexible super capacitor. Therefore, the present invention constitutes a batteryless non-contact fingerprint identification smart card.

In addition, in the batteryless non-contact fingerprint identification smart card of the embodiment, the signal line group 22 includes at least a power line (VCC), a ground line (GND), a reset signal line (RST), and a clock signal line. (CLK), data transmission signal line (I/O), first antenna end signal line (ANT1), and second antenna end signal line (ANT2) (not shown), wherein the present invention is grounded, An antenna end signal line and a second antenna end The signal line is connected to the switch unit 3 as an embodiment, and the signal line can be connected to the switch unit 3 by using different signal lines in the signal line group 22 according to actual needs.

The switching unit 3 (shown in FIG. 5) includes a metal oxide semiconductor field effect transistor 31 (MOSFET), a diode 32 (Diode), a complex resistor 33, a complex capacitor 34, and a double carrier junction. a transistor 35 (Bipolar Junction Transistor, BJT), the metal oxide semiconductor field effect transistor 31 is connected to the fingerprint identification unit 4, and the diode 32 is connected to the metal oxide semiconductor field effect transistor 31, and the resistors And the capacitors 34 are respectively connected to the metal oxide semiconductor field effect transistor 31, the bipolar junction transistor 35 is connected to the diode 32, one of the resistors 33 and one of the capacitors 34, and the pair A carrier junction transistor 35 is connected to the transaction processing unit 2. When the bipolar junction transistor 35 is connected to the transaction processing unit 2, it is connected to the ground line of the signal line group 22, the first antenna end signal line, and the second antenna end signal line (not shown) ). The above components are only one embodiment of the switch unit 3, and the connection manner of each component can be changed as needed. In addition, the switch unit 3 can also be an integrated circuit or a single chip in actual use, so as to meet the needs of practical applications.

When the card body 1 performs the non-contact transaction, the card holder can close the reading device (not shown), and the antenna 25 reads the electromagnetic wave from the reading device to generate the sensor. The required power is supplied to the contactless chip 24 of the transaction processing unit 2, and the voltage of the power management module 23 is stabilized, and part of the power is stored to the storage capacitor 26, so that external power can be obtained. The power required by the switch unit 3 and the fingerprint recognition unit 4 is provided by the power management module 23 of the transaction processing unit 2, and the card holder can contact the finger (the finger of the original preset fingerprint) to the fingerprint identification unit. 4. After the fingerprint recognition unit 4 receives the fingerprint and recognizes the fingerprint, the fingerprint recognition unit 4 controls the switch unit 3 to be in an open state, so that the signal line group 22 is The ground line and the reset signal line are not connected to each other (i.e., separated from each other and do not interfere with each other), so that the switching unit 3 maintains normal operation and the transaction processing unit 2 is opened for transaction. When the transaction ends to remove the card body 1, the antenna 25 is powered off due to the inability to read electromagnetic waves from the reading device, and the fingerprint recognition unit 2 and the fingerprint recognition unit 4 are brought into a closed state.

On the other hand, when the fingerprint recognition unit 4 receives the fingerprint and recognizes it, and recognizes it as an error (the fingerprint is not the card holder himself), the fingerprint recognition unit 4 controls the switch unit 3 to be in a closed state, so that the The ground line of the signal line group 22 and the reset signal line are connected to each other, causing the ground line and the reset signal line to be broken and interfere with each other to operate normally, thereby causing the switch unit 3 to close the transaction processing unit 2 and fail to execute the transaction. In order to achieve the security and convenience of the transaction.

Further, when the antenna 25 acquires external power via the reading device, the storage capacitor 3 can be simultaneously charged, and the power can be used as a backup power, and the power can be used when the antenna 25 is unable to obtain power.

Referring to FIG. 6 , as shown in the figure, in the third embodiment of the present invention, the transaction processing unit 2 includes a dual interface chip 27 , a signal line group 22 , a power management module 23 , an antenna 25 , and a storage capacitor 26, the dual interface chip 27 is connected to the signal line group 22, the power management module 23 and the antenna 25. The signal line group 22 is connected to the switch unit 3, and the power management module 23 is connected. The circuit is connected to the antenna 25, the storage capacitor 26, the switch unit 3 and the fingerprint identification unit 4; and the switch unit 3 is connected to the ground line, the reset signal line, the clock signal line of the signal line group 22, The data transmission signal line, the first antenna end signal line, and the second antenna end signal line (not shown). Therefore, the present invention constitutes a fingerprint-free smart card with no battery double interface.

This embodiment differs from the above embodiment in that the transaction processing unit 2 of the present embodiment has the dual interface wafer 27. In use, the card body 1 is inserted into the reading device, and the dual-interface wafer 27 is electrically contacted with the reading device, so that the reading device supplies power through the dual-interface wafer 27 to generate the required power. Contact transaction is performed to the dual interface wafer 27 of the transaction processing unit 2. In addition, the card body 1 is also brought close to the reading device, so that the antenna 25 reads electromagnetic waves from the reading device to inductively generate the required power to the dual interface wafer 27 of the transaction processing unit 2 for non-contact type. transaction. The contact transaction or the contactless transaction can obtain external power by the reading device, and the voltage of the power management module 23 is stabilized, and part of the power is stored to the storage capacitor 26, and the fingerprint is recognized. Unit 4 receives and identifies the fingerprint data of the cardholder. The switch unit 3 can control the switch unit 3 to be in an open state according to the identification result of the fingerprint recognition unit 4, so that the ground line and the reset signal line of the signal line group 22 are not connected to each other (ie, are separated from each other). Interfering with each other), causing the switch unit 3 to maintain normal operation to open the transaction processing unit 2 for transaction, or to control the switch unit 3 to be in a closed state, to make the signal line group 22 ground and reset signal The lines are connected to each other, causing the ground line and the reset signal line to be broken and interfere with each other to operate normally, thereby causing the switch unit 3 to close the transaction processing unit 2 and fail to execute the transaction. Thus, the present invention can be made more suitable for practical use.

Please refer to FIG. 7. As shown in the figure, in the fourth embodiment of the present invention, the transaction processing unit 2 includes a contact chip 21, a signal line group 22, a power management module 23, and a secondary battery. 28, the contact chip 21 is connected to the signal line group 22 and the power management module 23, the signal line group 23 is connected to the switch unit 3, and the power management module 23 is connected to the secondary battery 28 The switch unit 3 and the fingerprint recognition unit 4. Therefore, the present invention constitutes a battery-contact fingerprint identification smart card.

The difference between the present embodiment and the above embodiment is that the transaction processing unit 2 of the present embodiment has the secondary battery 28. In use, the card body 1 is inserted into the reading device, and the contact wafer 21 is electrically contacted with the reading device to generate the required power to the contact wafer 21 of the transaction processing unit 2, and via The power management module 23 stores part of the power to the secondary battery 28, and then causes the reading device to supply power to the transaction processing unit 2, the switch unit 3, and the fingerprint recognition unit 4 through the contact wafer 21. The contact transaction proposed in the first embodiment. The power in the secondary battery 28 can be used as backup power, and can be used for power supply when the contact wafer 21 cannot obtain power of the reading device. Thus, the present invention can be made more suitable for practical use.

Please refer to FIG. 8. As shown in the figure, in the fifth embodiment of the present invention, the transaction processing unit 2 includes a non-contact wafer 24, a signal line group 22, a power management module 23, and an antenna 25. And a secondary battery 28, the non-contact wafer 24 is connected to the signal line group 22 and the antenna 25, the signal line group 22 is connected to the switch unit 3, and the power management module 23 is connected to the antenna 25 The secondary battery 28, the switch unit 3, and the fingerprint recognition unit 4. Therefore, the present invention constitutes a battery non-contact fingerprint identification smart card.

The difference between this embodiment and the fourth embodiment is that the secondary battery 28 of the transaction processing unit 2 of the present embodiment is charged by the non-contact wafer 24. In use, the card holder can bring the card body 1 close to the reading device (not shown), and cause the antenna 25 to read electromagnetic waves from the reading device to sense the generated power to the transaction processing unit 2 Contact wafer 24, and partially storing power to the secondary battery 28 via the power management module 23, and then allowing the reading device to supply power to the transaction processing unit 2, the switch unit 3, and the non-contact wafer 24 The fingerprint identification unit 4 performs the contactless transaction mentioned in the second embodiment. The power in the secondary battery 28 can be used as backup power. The power supply is used when the non-contact wafer 24 cannot obtain power from the reading device. Thus, the present invention can be made more suitable for practical use.

Referring to FIG. 9, as shown in the figure, in the sixth embodiment of the present invention, the transaction processing unit 2 includes a dual interface chip 27, a signal line group 22, a power management module 23, an antenna 25, and a secondary battery 28, the dual interface chip system is connected to the signal line group, the power management module and the antenna, the signal line system is connected to the switch unit, and the power management module is connected to the antenna, the second a secondary battery, the switch unit and the fingerprint identification unit. Therefore, the present invention constitutes a fingerprint identification smart card with a double interface of the battery.

The difference between this embodiment and the above embodiment is that the secondary battery 28 of the transaction processing unit 2 of the present embodiment is charged by the double interface wafer 27. In use, the card body 1 is inserted into the reading device, and the dual-interface wafer 27 is electrically contacted with the reading device, so that the reading device supplies power through the dual-interface wafer 27 to generate the required power. The dual interface wafer 27 of the transaction processing unit 2 is stored, and part of the power is stored to the secondary battery 28 by the power management module 23. In addition, the card body 1 is also close to the reading device, so that the antenna 25 reads electromagnetic waves from the reading device to induce the generated power to the dual interface chip 27 of the transaction processing unit 2, and The management module 23 stores part of the power to the secondary battery 28. The reading device is further powered by the dual interface chip 27 to the transaction processing unit 2, the switch unit 3 and the fingerprint identification unit 4, and the contact transaction or contactless transaction mentioned in the third embodiment is performed. . The power in the secondary battery 28 can be used as backup power, and can be used for power supply when the dual interface chip 27 cannot obtain the power of the reading device. Thus, the present invention can be made more suitable for practical use.

The invention has been described above in terms of the preferred embodiments, and it should be understood by those skilled in the art that the present invention is not intended to limit the scope of the invention. It should be noted that variations and permutations equivalent to those of the embodiments are intended to be included within the scope of the present invention. Therefore, the scope of protection of the present invention is defined by the scope of the patent application.

Claims (9)

A fingerprint identification smart card comprises: a card body; a transaction processing unit is disposed on the card body, and the transaction processing unit can be used as a power supply and used for trading with a reading device; a switch unit is provided The card body is electrically connected to the transaction processing unit, the switch unit is capable of turning on or off the transaction processing unit; and a fingerprint identification unit is disposed on the card body and electrically connected to the transaction processing unit and the switch unit, The fingerprint identification unit receives and recognizes the fingerprint data of the card holder, so that the switch unit turns the transaction processing unit on or off according to the identification result of the fingerprint identification unit; in addition, the switch unit includes a metal oxide semiconductor field effect transistor ( a MOSFET), a diode (Diode), a complex resistor, a complex capacitor, and a Bipolar Junction Transistor (BJT), the metal oxide semiconductor field effect transistor system is connected to the fingerprint identification unit, a diode system is connected to the metal oxide semiconductor field effect transistor, and the resistors are respectively connected to the capacitor systems a metal oxide semiconductor field effect transistor, the bipolar contact junction electro-crystal system is connected to the diode, one of the resistors and one of the capacitors, and the bi-carrier junction electro-crystal system is additionally coupled to the transaction processing unit by a resistor . The fingerprint identification smart card of claim 1, wherein the transaction processing unit comprises a contact chip, a signal line group and a power management module, the contact chip system The circuit is connected to the signal line group and the power management module, and the signal line group circuit is connected to the switch unit, and the power management module is connected to the switch unit and the fingerprint identification unit. The fingerprint identification smart card of claim 1, wherein the transaction processing unit comprises a non-contact chip, a signal line group, a power management module, an antenna and a storage capacitor, the non-contact chip system The signal line group is connected to the antenna, and the signal line system is connected to the switch unit. The power management module is connected to the antenna, the storage capacitor, the switch unit and the fingerprint identification unit. The fingerprint identification smart card of claim 1, wherein the transaction processing unit comprises a dual interface chip, a signal line group, a power management module, an antenna and a storage capacitor, and the dual interface chip system is connected. The signal line group, the power management module and the antenna are connected to the switch unit, and the power management module is connected to the antenna, the storage capacitor, the switch unit and the fingerprint identification unit. The fingerprint identification smart card according to claim 3 or 4, wherein the storage capacitor is a hard super capacitor or a flexible super capacitor. The fingerprint identification smart card of claim 1, wherein the transaction processing unit comprises a contact chip, a signal line group, a power management module and a secondary battery, wherein the contact chip system is connected to the signal line And the power management module, the signal line system is connected to the switch unit, and the power management module is connected to the secondary battery, the switch unit and the fingerprint identification unit. The fingerprint identification smart card of claim 1, wherein the transaction processing unit comprises a non-contact chip, a signal line group, a power management module, an antenna and a secondary battery, and the contactless chip system Connecting the signal line group and the antenna, the signal line group circuit is connected to the switch unit, and the power management module is connected to the antenna, the secondary battery, the switch unit and the fingerprint identification unit. The fingerprint identification smart card of claim 1, wherein the transaction processing unit comprises a dual interface chip, a signal line group, a power management module, an antenna and a secondary battery, and the dual interface chip system is connected. The signal line group, the power management module and the antenna are connected to the switch unit, and the power management module is connected to the antenna, the secondary battery, the switch unit and the fingerprint identification unit. A fingerprint identification smart card comprises: a card body; a transaction processing unit is disposed on the card body, and the transaction processing unit can be used as a power supply and used for trading with a reading device; a switch unit is provided The card body is electrically connected to the transaction processing unit, the switch unit is capable of turning on or off the transaction processing unit; and a fingerprint identification unit is disposed on the card body and electrically connected to the transaction processing unit and the switch unit, The fingerprint identification unit receives and recognizes the fingerprint data of the card holder, so that the switch unit turns the transaction processing unit on or off according to the identification result of the fingerprint identification unit; In addition, the switching unit includes a metal oxide semiconductor field effect transistor (MOSFET), a diode (Diode), a complex resistor, a complex capacitor, and a Bipolar Junction Transistor (BJT). The metal oxide semiconductor field effect crystal system is connected to the fingerprint identification unit, and the diode system is connected to the metal oxide semiconductor field effect transistor, and the resistors and the capacitors are respectively connected to the metal oxide semiconductor field effect transistor The bipolar junction junction crystal system is connected to the diode, one of the resistors and one of the capacitors, and the bipolar junction junction crystal system is connected to the transaction processing unit.