A fingerprint reader that uses deep ultraviolet LED light source to kill bacteria

Abstract

The present invention discloses a fingerprint identifier that utilizes a deep ultraviolet LED light source for sterilization, comprising an outer shell, a deep ultraviolet sterilization light source, a fingerprint integrated component, and a hidden lifting device, wherein the outer shell is a rectangular hollow cavity, the hidden lifting device is fixedly mounted on the inner wall of the outer shell, the fingerprint integrated component can be lifted and lowered in the outer shell, the fingerprint integrated component is fixedly mounted on the hidden lifting device, and the deep ultraviolet sterilization light source is fixedly mounted on the hidden lifting device. The present invention belongs to the field of fingerprint identification technology, and specifically provides a fingerprint identifier that utilizes a deep ultraviolet LED light source for sterilization, which utilizes deep ultraviolet light for efficient sterilization, avoids cross infection, has human body induction, is highly practical, safe and sanitary, and has low cost.

Description

Technical Field

[0001] The present invention belongs to the technical field of fingerprint identification, and specifically refers to a fingerprint identifier utilizing a deep ultraviolet LED light source for sterilization. Background Art

[0002] Fingerprint recognition technology is a means of verifying identity through fingerprint comparison, and it is also the most widely used biometric recognition technology today. Fingerprint recognition has been widely used in various aspects such as attendance, security, public security, door locks, etc., and is a high-frequency skin contact area. Since fingers can easily become carriers of bacterial transmission, fingerprint recognition devices that need to constantly contact the surfaces of various people's fingers will inevitably become a way for bacteria to spread, reducing the practicality and safety of fingerprint identifiers.

[0003] The current disinfection method is generally to use disinfectant or medical alcohol for spray disinfection, which not only has low anti-virus efficiency and long time, but also seriously affects the accuracy of fingerprint recognition and aggravates the aging of the equipment. The present invention uses the unique sterilization principle of deep ultraviolet LED to quickly kill viruses and bacteria in the fingerprint collection area of ​​the fingerprint recognition instrument, thereby playing a role in epidemic prevention.

[0004] Deep ultraviolet LED can emit 260NM-290NM ultraviolet rays. Ultraviolet rays in this band can penetrate the cell membrane and interrupt the DNA and RNA chains of cells or viruses. This method is a purely physical sterilization method with the characteristics of broad spectrum and high efficiency, fast and thorough, no need to add chemical agents, no drug resistance, and no secondary pollution. Summary of the invention

[0005] In order to solve the above-mentioned existing problems, the present invention provides a fingerprint identifier that uses deep ultraviolet light to sterilize efficiently and avoid cross infection; it is hidden, lifting, human body sensing, highly practical, safe and hygienic, and low-cost, and uses deep ultraviolet LED light source for sterilization.

[0006] The technical solution adopted by the present invention is as follows: The present invention is a fingerprint identifier that uses a deep ultraviolet LED light source for sterilization, comprising an outer shell, a deep ultraviolet sterilization light source, a fingerprint integrated component and a hidden lifting device, wherein the outer shell is a rectangular hollow cavity, the hidden lifting device is fixedly connected to the inner wall of the outer shell, the fingerprint integrated component can be lifted and lowered in the outer shell, the fingerprint integrated component is fixedly connected to the hidden lifting device, the deep ultraviolet sterilization light source is fixedly connected to the hidden lifting device, the fingerprint integrated component comprises a fingerprint component box, a controller, a fingerprint library memory chip, a fingerprint window and a press-type sensor The fingerprint component box is rectangular, the controller and the fingerprint library memory chip are fixedly arranged in the fingerprint component box, the fingerprint window is fixedly arranged on the upper end of the fingerprint component box, the press sensor is fixedly arranged on the lower wall of the fingerprint window, the hidden lifting device includes a motor, a driving shaft, a driving gear, a fixed rod, a driven gear, a driven shaft, a connecting rod, a cover plate and a lifting through hole, the fixed rods are symmetrically fixedly arranged on the inner wall of the outer shell, the motors are symmetrically fixedly arranged on the inner wall of the fingerprint component box, the driving shaft can rotate and penetrate the side wall of the fingerprint component box, and one end of the driving shaft is fixedly arranged on the motor The output shaft of the driving gear is fixedly provided on the end of the driving connecting shaft away from the motor, the fixed rod is provided with gear teeth, the driving gears are respectively meshed and connected with the gear teeth on the fixed rod, the driven connecting shafts are respectively rotatably arranged on the side walls of the fingerprint component box, the driven gears are fixedly provided on the end of the driven connecting shaft away from the fingerprint component box, the driven gears are meshed and connected with the driving gears, the connecting rod is vertically fixedly provided on the driven connecting shaft, the cover plates are respectively vertically fixedly provided on the end of the connecting rod away from the driven connecting shaft, the deep ultraviolet sterilization light source is fixedly provided on the lower wall of the cover plate and is provided directly above the fingerprint window, the deep ultraviolet The external sterilization light source is powered on to emit ultraviolet rays to disinfect and sterilize the fingerprint window, which is safe and reliable. The lifting through hole is arranged on the upper wall of the outer shell, and the cover plates are respectively arranged at the lifting through holes. When the motor is powered on, the motor drives the active coupling to rotate, and the active coupling drives the active gear to rotate. The fingerprint component box rises or falls when the active gear rotates. The driven gear rotates and drives the driven coupling to rotate. The driven coupling drives the connecting rod to rotate. The connecting rod drives the cover to open or close. The cover is in a normally closed state. When the fingerprint needs to be opened, the cover is opened and the fingerprint window pops out.

[0007] Furthermore, a pyroelectric infrared sensor is fixedly provided on the upper wall of the cover plate, and the pyroelectric infrared sensor is used as a human body sensing switch of the device. When a human body approaches, the pyroelectric infrared sensor sends the infrared rays emitted by the monitored human body to the controller in the form of an electrical signal, and the controller controls the motor to power on and work.

[0008] Furthermore, the connecting rods rotate in the same direction, and elastic cleaning foam is arranged between the connecting rods. Driven by the connecting rods, the elastic cleaning foam will wipe and remove dust from the fingerprint window.

[0009] Furthermore, the sum of the areas of the cover plates is larger than the area of ​​the lifting through hole, and the cover plates can completely cover the lifting through hole in a closed state, thereby preventing dust and reducing the probability of bacterial attachment.

[0010] Furthermore, a flexible sealing ring is provided on the edge of the cover plate, and the flexible sealing ring is made of rubber material to play the role of dustproof, waterproof and prolonging the service life of the equipment.

[0011] Preferably, the deep ultraviolet germicidal light source is a deep ultraviolet LED.

[0012] The beneficial effects achieved by the present invention using the above structure are as follows: This scheme is a fingerprint identifier that uses deep ultraviolet LED light source for sterilization. The deep ultraviolet light emitted by the deep ultraviolet light source is used to irradiate the fingerprint window in the fingerprint identification instrument, thereby producing a highly efficient sterilization effect, which not only improves the sterilization effect but also reduces the workload of personnel; compared with various existing sterilization and disinfection methods, this technical scheme is simple, low in investment, and does not require special personnel to be responsible for supervision; this scheme uses a pyroelectric infrared sensor as a human body sensing switch of the device. When a human body approaches, the pyroelectric infrared sensor will monitor the infrared rays emitted by the human body in the form of an electrical signal The fingerprint is sent to the controller in the form of a fingerprint sensor, and the controller controls the motor to power on, so that the motor opens the cover and the fingerprint window pops up. After the fingerprint is opened, the controller controls the motor to rotate in the opposite direction. After the cover is closed, the controller controls the deep ultraviolet LED to start, and the deep ultraviolet LED is powered on to emit ultraviolet light to disinfect and sterilize the fingerprint window. It only takes a few seconds to kill all potential viruses. The cover is in a normally closed state. When the fingerprint needs to be opened, the cover is opened and the fingerprint window pops up. The elastic cleaning foam will wipe and remove dust from the fingerprint window driven by the connecting rod. A flexible sealing ring is provided on the edge of the cover. The flexible sealing ring is made of rubber material to prevent dust and water and extend the service life of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is a schematic diagram of the internal structure of a fingerprint identifier that uses a deep ultraviolet LED light source for sterilization according to the present invention;

[0014] Figure 2 A cross-sectional view of a fingerprint identifier that utilizes a deep ultraviolet LED light source for sterilization according to the present invention;

[0015] Figure 3 This is a state diagram of an embodiment of a fingerprint identifier that utilizes a deep ultraviolet LED light source for sterilization according to the present invention.

[0016] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings: 1. outer shell, 2. fingerprint integrated component, 3. hidden lifting device, 4. deep ultraviolet sterilization light source, 5. fingerprint component box, 6. controller, 7. fingerprint library memory chip, 8. fingerprint window, 9. press sensor, 10. motor, 11. active shaft, 12. active gear, 13. fixed rod, 14. driven gear, 15. driven shaft, 16. connecting rod, 17. cover plate, 18. lifting through hole, 19. pyroelectric infrared sensor, 20. elastic cleaning foam, 21. flexible sealing ring. DETAILED DESCRIPTION

[0017] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments; based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0018] like Figure 1-3As shown, the present invention is a fingerprint identifier that uses a deep ultraviolet LED light source for sterilization, including an outer shell 1, a deep ultraviolet sterilization light source 4, a fingerprint integrated component 2 and a hidden lifting device 3, wherein the outer shell 1 is a rectangular hollow cavity, the hidden lifting device 3 is fixedly arranged on the inner wall of the outer shell 1, the fingerprint integrated component 2 can be lifted and lowered in the outer shell 1, the fingerprint integrated component 2 is fixedly arranged on the hidden lifting device 3, the deep ultraviolet sterilization light source 4 is fixedly arranged on the hidden lifting device 3, and the fingerprint integrated component 2 includes a fingerprint component The fingerprint component box 5 is rectangular, the controller 6 and the fingerprint library memory chip 7 are fixedly arranged in the fingerprint component box 5, the fingerprint window 8 is fixedly arranged at the upper end of the fingerprint component box 5, the press-type sensor 9 is fixedly arranged at the lower wall of the fingerprint window 8, and the hidden lifting device 3 includes a motor 10, a driving shaft 11, a driving gear 12, a fixing rod 13, a driven gear 14, a driven shaft 15, a connecting rod 16, a cover plate 17 and a lifting through hole 18. The fixing rods 13 are symmetrically fixedly arranged on the inner wall of the outer shell 1, the motors 10 are symmetrically fixedly arranged on the inner wall of the fingerprint component box 5, the active connecting shaft 11 can rotate through the side wall of the fingerprint component box 5, one end of the active connecting shaft 11 is fixedly arranged on the output shaft of the motor 10, the active gear 12 is fixedly arranged on the end of the active connecting shaft 11 away from the motor 10, the fixing rods 13 are provided with gear teeth, the active gears 12 are respectively meshed with the gear teeth on the fixing rods 13, and the driven connecting shafts 15 are respectively rotatably arranged vertically on On the side wall of the fingerprint component box 5, the driven gear 14 is fixedly provided on the driven connecting shaft 15 at one end away from the fingerprint component box 5, the driven gear 14 is meshed with the driving gear 12, the connecting rod 16 is vertically fixedly provided on the driven connecting shaft 15, the cover plates 17 are respectively vertically fixedly provided on the connecting rod 16 at one end away from the driven connecting shaft 15, the deep ultraviolet sterilization light source 4 is fixedly provided on the lower wall of the cover plate 17 and is provided directly above the fingerprint window 8, the lifting through hole 18 is provided on the upper wall of the outer shell 1, and the cover plates 17 are respectively provided at the lifting through hole 18.

[0019] Among them, a pyroelectric infrared sensor 19 is fixedly connected to the upper wall of the cover plate 17; the connecting rods 16 rotate in the same direction, and elastic cleaning foam 20 is provided between the connecting rods 16; the sum of the areas of the cover plates 17 is greater than the area of ​​the lifting through holes 18; a flexible sealing ring 21 is provided on the edge of the cover plate 17, and the flexible sealing ring 21 is made of rubber material; the deep ultraviolet sterilization light source 4 is a deep ultraviolet LED.

[0020] During specific use, when a human body approaches the device, the pyroelectric infrared sensor 19 sends the infrared rays emitted by the human body detected in the form of an electrical signal to the controller 6, and the controller 6 controls the motor 10 to be powered on, and the motor 10 drives the active coupling shaft 11 to rotate, and the active coupling shaft 11 rotates to drive the active gear 12 to rotate, and the active gear 12 rotates to raise or lower the fingerprint assembly box 5, and the active gear 12 rotates and drives the driven gear 14 to rotate at the same time, and the driven gear 14 rotates to drive the driven coupling shaft 15 to rotate, and the driven coupling shaft 15 rotates to drive the connecting rod 16 to rotate, and the connecting rod 16 rotates to drive the cover plate 17 to open or close, and the cover plate 17 is in a normally closed state. When the fingerprint needs to be opened, the cover plate 17 is opened and the fingerprint window 8 pops up; after the user's fingerprint punching is completed, the controller 6 controls the motor 10 to rotate in the opposite direction, and the fingerprint window 8 descends into the outer shell 1. After the cover plate 17 is closed, the controller 6 controls the deep ultraviolet sterilization light source 4 to be powered on, and the deep ultraviolet sterilization light source 4 is powered on to emit ultraviolet rays to disinfect and sterilize the fingerprint window 8.

[0021] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0022] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A fingerprint reader using deep ultraviolet LED light source for sterilization, characterized in that: It includes an outer shell, a deep ultraviolet germicidal light source, a fingerprint integrated component and a hidden lifting device, the outer shell is a rectangular hollow cavity, the hidden lifting device is fixedly arranged on the inner wall of the outer shell, the fingerprint integrated component can be lifted and lowered in the outer shell, the fingerprint integrated component is fixedly arranged on the hidden lifting device, the deep ultraviolet germicidal light source is fixedly arranged on the hidden lifting device, the fingerprint integrated component includes a fingerprint component box, a controller, a fingerprint library memory chip, a fingerprint window and a press-type sensor, the fingerprint component box is arranged in a rectangular shape, the controller and the fingerprint library memory chip are fixedly arranged in the fingerprint component box, the fingerprint window is fixedly arranged on the upper end of the fingerprint component box, the press-type sensor is fixedly arranged on the lower wall of the fingerprint window, the hidden lifting device includes a motor, a driving shaft, a driving gear, a fixed rod, a driven gear, a driven shaft, a connecting rod, a cover plate and a lifting through hole, the fixed rod is respectively The motors are symmetrically fixed on the inner wall of the outer shell, and the motors are symmetrically fixed on the inner walls of the fingerprint component box. The active coupling shaft can rotate and pass through the side wall of the fingerprint component box. One end of the active coupling shaft is fixed on the output shaft of the motor. The active gear is fixed on the end of the active coupling shaft away from the motor. The fixed rod is provided with gear teeth, and the active gears are respectively meshed with the gear teeth on the fixed rod. The driven coupling shafts can rotate and be vertically arranged on the side wall of the fingerprint component box. The driven gear is fixed on the end of the driven coupling shaft away from the fingerprint component box. The driven gear is meshed with the driving gear. The connecting rod is vertically fixed on the driven connecting shaft, and the cover plates are respectively vertically fixed on the end of the connecting rod away from the driven coupling shaft. The deep ultraviolet sterilization light source is fixed on the lower wall of the cover plate and is arranged directly above the fingerprint window. The lifting through hole is arranged on the upper wall of the outer shell, and the cover plates are respectively arranged at the lifting through hole.

2. The fingerprint reader using deep ultraviolet LED light source for sterilization according to claim 1, characterized in that: A pyroelectric infrared sensor is fixedly connected to the upper wall of the cover plate.

3. The fingerprint reader using deep ultraviolet LED light source for sterilization according to claim 1, characterized in that: The connecting rods rotate in the same direction, and elastic cleaning foam is arranged between the connecting rods.

4. The fingerprint reader using deep ultraviolet LED light source for sterilization according to claim 1, characterized in that: The sum of the areas of the cover plates is greater than the area of ​​the lifting through hole.

5. The fingerprint reader using deep ultraviolet LED light source for sterilization according to claim 1, characterized in that: A flexible sealing ring is arranged on the edge of the cover plate, and the flexible sealing ring is made of rubber material.

6. The fingerprint reader using deep ultraviolet LED light source for sterilization according to claim 1, characterized in that: The deep ultraviolet sterilization light source is a deep ultraviolet LED.

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