CN204808321U - Encrypt USB flash disk based on ultrasonic wave fingerprint identification technique - Google Patents
Encrypt USB flash disk based on ultrasonic wave fingerprint identification technique Download PDFInfo
- Publication number
- CN204808321U CN204808321U CN201520521156.4U CN201520521156U CN204808321U CN 204808321 U CN204808321 U CN 204808321U CN 201520521156 U CN201520521156 U CN 201520521156U CN 204808321 U CN204808321 U CN 204808321U
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- main control
- ripples
- control chip
- bus
- fingerprint identification
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Abstract
The utility model provides an encrypt USB flash disk based on ultrasonic wave fingerprint identification technique, include: USB plug, PCB circuit board, data line, steady voltage integrated circuit, bus, main control chip, ripples send ware, ripples receiver and FLASH pad, wherein, steady voltage integrated circuit, bus, main control chip, ripples send ware, ripples receiver and FLASH pad and all install on PCB circuit board, steady voltage integrated circuit, ripples send ware, ripples receiver and FLASH pad to be passed through the bus and is connected with main control chip, the USB plug passes through the data line and is connected with steady voltage integrated circuit. The utility model provides a recognition speed is fast, efficient for encrypt USB flash disk based on ultrasonic wave fingerprint identification technique adoption ultrasonic wave technique, and blood vessel and skeleton scanning are different from traditional surperficial line scanning, and the encryption effect is better to require lowly to the clean degree of fingerprint.
Description
Technical field
The utility model relates to encryption technology field, more specifically, relates to a kind of encrypted U disk based on ultrasonic fingerprint identification technique.
Background technology
At present, nowadays USB flash disk with fingerprint recognition is used by people more and more, and existing fingerprint identification technology is the scanning to fingerprint surface pattern, and the form converting plane picture to contrasts, require high to fingerprint clean level, and sweep velocity is slow, identification order of accuarcy is low.Ultrasonic scanning has the advantage that sweep velocity is fast, recognition accuracy is high, but is all applied in medical inspection, does not also occur the situation being used in field of encryption.
Utility model content
In view of the above problems, the purpose of this utility model is to provide a kind of encrypted U disk based on ultrasonic fingerprint identification technique, to solve traditional problem that fingerprint surface scanning is slow, identification order of accuarcy is low.
The encrypted U disk based on ultrasonic fingerprint identification technique that the utility model provides, comprises USB plug 1, PCB 2, data line 3, integrated regulator 4, bus 5, main control chip 6, ripple transmitter 7, ripple receiver 8 and FLASH pad 9; Wherein, integrated regulator 4, bus 5, main control chip 6, ripple transmitter 7, ripple receiver 8 and FLASH pad 9 are installed in PCB 2; Integrated regulator 4, ripple transmitter 7, ripple receiver 8 are connected with main control chip 6 by bus 5 with FLASH pad 9; USB plug 1 is connected with integrated regulator 4 by data line 3.
In addition, preferred structure is, ripple transmitter 7 and ripple receiver 8 are piezoelectric ceramic piece.
The employing of the encrypted U disk based on the ultrasonic fingerprint identification technique ultrasonic technology recognition speed that the utility model provides is fast, efficiency is high, and blood vessel and bone scan are different from traditional surface pattern scanning, and cipher round results is better, and requires low to fingerprint clean level.
Accompanying drawing explanation
By reference to the content below in conjunction with the description of the drawings and claims, and understand more comprehensively along with to of the present utility model, other object of the present utility model and result will be understood and easy to understand more.
Fig. 1 shows the structural representation of the encrypted U disk based on ultrasonic fingerprint identification technique of the present utility model.
Reference numeral wherein comprises: USB plug 1, PCB 2, data line 3, integrated regulator 4, bus 5, main control chip 6, ripple transmitter 7, ripple receiver 8, FLASH pad 9.
Embodiment
Below with reference to accompanying drawing, specific embodiment of the utility model is described in detail.
Fig. 1 shows the structural representation sketch according to the utility model steel plate processing unit (plant).
As shown in Figure 1, the encrypted U disk based on ultrasonic fingerprint identification technique that the utility model provides comprises: USB plug 1, PCB 2, data line 3, integrated regulator 4, bus 5, main control chip 6, ripple transmitter 7, ripple receiver 8 and FLASH pad 9; Wherein, integrated regulator 4, bus 5, main control chip 6, ripple transmitter 7, ripple receiver 8 and FLASH pad 9 are installed in PCB 2; Integrated regulator 4, ripple transmitter 7, ripple receiver 8 are connected with main control chip 6 by bus 5 with FLASH pad 9; USB plug 1 is connected with integrated regulator 4 by data line 3.
USB plug 1 is for powering to USB flash disk; Main control chip 6 completes the exchanges data of USB flash disk and computer and the identification to user's identity; Integrated regulator 4 is for adjustment and stable USB flash disk supply voltage; General data and the USB flash disk possessory scanning information of FLASH pad 9 for storing user, the possessory scanning information of USB flash disk comprises fingerprint, blood vessel and bone; Ripple transmitter 7 for sending ultrasound wave, to scan the fingerprint of USB flash disk user, blood vessel and bone; Ripple receiver 8 for receiving this ultrasound wave, and converts electric signal to.
In an embodiment, ripple transmitter 7 and ripple receiver 8 are piezoelectric ceramic piece, and piezoelectric ceramic piece as the principle of work of ripple transmitter 7 is: when electric signal acts on piezoelectric ceramic piece, and piezoelectric ceramic piece launches ultrasound wave because of flexural vibrations.Piezoelectric ceramic piece as the principle of work of ripple receiver 8 is: when piezoelectric ceramic piece receives ultrasound wave, according to ultrasound wave, corresponding mechanical vibration occurs, and mechanical vibration are converted to electric signal.
In addition, the method of ultrasonic scanning blood vessel, bone is: ripple transmitter 7 emits ultrasonic acoustic waves in human body, when ultrasound wave run in vivo blood vessel, bone interface time can occur reflection and refraction, and may by blood vessel, bone absorption and decaying, Potamogeton crispus due to human vas, bone is not identical, therefore, its reflection and refraction and to absorb hyperacoustic degree also just different, ripple receiver 8 receives the ultrasound wave returned from human body, and convert electric signal to, what electric signal represented is human vas, the specific wave mode of bone, curve or image.
And the principle of ultrasonic scanning fingerprint is: ultrasound wave launched by ripple transmitter 7, ultrasound wave can be reflected after arriving at finger surface, and ripple receiver 8 receives the ultrasound wave reflected, and convert electric signal to, the three-dimensional information of what electric signal represented is fingerprint.
The fingerprint of the utility model synchronous scanning user, blood vessel and skeletal structure, form a comprehensive recognition system, the scanning information of user and the USB flash disk possessory scanning information of prediction in USB flash disk are compared, thus whether the current user identifying USB flash disk is the USB flash disk owner, adopt ultrasonic technology also more effective improve confirmation probability is distinguished to non-clean fingerprint.
The utility model in use, after USB flash disk inserts computer, main control chip 6 applies voltage to ripple transmitter 7, wave producer 7 sends ultrasound wave to user, ultrasound wave runs into the fingerprint of user, blood vessel and bone send reflection and refraction, ripple receiver 8 receives the ultrasound wave from the internal reflection of user's body and bounce back, and convert electric signal to, then electric signal is imported into main control chip 6 by bus 5, main control chip 6 identifies that (scanning information comprises fingerprint for the scanning information of the user represented by this electric signal, blood vessel and bone), import possessory for the USB flash disk prestored in FLASH pad 9 scanning information into main control chip 6 by bus 5 simultaneously, main control chip 6 carries out matching ratio pair to the scanning information of current user and the possessory scanning information of USB flash disk that first stores, if the match is successful, then import the data in FLASH pad 9 into main control chip 6 by bus 5, data, by the data line 3 in bus 5 and USB plug 1, are imported in computer memory by main control chip 6, if mate unsuccessful, then main control chip 6 indicates USB plug 1 to stop powering to USB flash disk.Now, USB flash disk is opened to continue trial, the USB interface reinserting computer after then being extracted by USB flash disk carries out scanning information coupling again, preset times is reached if it fails to match, be considered as USB flash disk stolen, main control chip 6 sends the instruction of format by bus 5 pairs of FLASH pads 9, makes providing data formatting in USB flash disk.
Describe in an illustrative manner according to the encrypted U disk based on ultrasonic fingerprint identification technique of the present utility model above with reference to accompanying drawing.But, it will be appreciated by those skilled in the art that the encrypted U disk based on ultrasonic fingerprint identification technique that above-mentioned the utility model is proposed, various improvement can also be made on the basis not departing from the utility model content.Therefore, protection domain of the present utility model should be determined by the content of appending claims.
Claims (2)
1. the encrypted U disk based on ultrasonic fingerprint identification technique, it is characterized in that, comprising: USB plug (1), PCB (2), data line (3), integrated regulator (4), bus (5), main control chip (6), ripple transmitter (7), ripple receiver (8) and FLASH pad (9); Wherein, integrated regulator (4), bus (5), main control chip (6), ripple transmitter (7), ripple receiver (8) and FLASH pad (9) are installed in PCB (2); Integrated regulator (4), ripple transmitter (7), ripple receiver (8) are connected with main control chip (6) by bus (5) with FLASH pad (9); USB plug (1) is connected with integrated regulator (4) by data line (3).
2., as claimed in claim 1 based on the encrypted U disk of ultrasonic fingerprint identification technique, it is characterized in that, described ripple transmitter (7) and ripple receiver (8) are piezoelectric ceramic piece.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520521156.4U CN204808321U (en) | 2015-07-18 | 2015-07-18 | Encrypt USB flash disk based on ultrasonic wave fingerprint identification technique |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520521156.4U CN204808321U (en) | 2015-07-18 | 2015-07-18 | Encrypt USB flash disk based on ultrasonic wave fingerprint identification technique |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204808321U true CN204808321U (en) | 2015-11-25 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520521156.4U Expired - Fee Related CN204808321U (en) | 2015-07-18 | 2015-07-18 | Encrypt USB flash disk based on ultrasonic wave fingerprint identification technique |
Country Status (1)
| Country | Link |
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| CN (1) | CN204808321U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106599877A (en) * | 2016-12-28 | 2017-04-26 | 北京握奇智能科技有限公司 | Ultrasonic fingerprint identification security equipment and security trading system comprising same |
| CN106934361A (en) * | 2017-03-06 | 2017-07-07 | 苏州佳世达光电有限公司 | A kind of discrimination method and electronic equipment |
| CN108564975A (en) * | 2018-04-27 | 2018-09-21 | 济南浪潮高新科技投资发展有限公司 | A kind of production method of ram disk and ram disk |
| CN109672774A (en) * | 2018-04-12 | 2019-04-23 | 李芝宏 | The encryption of handheld mobile device osteoacusis bone line and unlocking system and method |
-
2015
- 2015-07-18 CN CN201520521156.4U patent/CN204808321U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106599877A (en) * | 2016-12-28 | 2017-04-26 | 北京握奇智能科技有限公司 | Ultrasonic fingerprint identification security equipment and security trading system comprising same |
| CN106934361A (en) * | 2017-03-06 | 2017-07-07 | 苏州佳世达光电有限公司 | A kind of discrimination method and electronic equipment |
| CN112270260A (en) * | 2017-03-06 | 2021-01-26 | 苏州佳世达光电有限公司 | Identification method and electronic equipment |
| CN109672774A (en) * | 2018-04-12 | 2019-04-23 | 李芝宏 | The encryption of handheld mobile device osteoacusis bone line and unlocking system and method |
| CN109672774B (en) * | 2018-04-12 | 2021-09-14 | 卓柔萍 | Handheld mobile device bone conduction bone pattern encryption and unlocking system and method |
| CN108564975A (en) * | 2018-04-27 | 2018-09-21 | 济南浪潮高新科技投资发展有限公司 | A kind of production method of ram disk and ram disk |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20151125 Termination date: 20160718 |