CN205644580U - Touch fingerprint identification instrument - Google Patents
Touch fingerprint identification instrument Download PDFInfo
- Publication number
- CN205644580U CN205644580U CN201620329686.3U CN201620329686U CN205644580U CN 205644580 U CN205644580 U CN 205644580U CN 201620329686 U CN201620329686 U CN 201620329686U CN 205644580 U CN205644580 U CN 205644580U
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- drain pan
- sensor
- slip lid
- circuit board
- draw
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Abstract
The utility model provides a touch fingerprint identification instrument, including slip lid, drain pan, sensor and circuit board, the sensor is installed on the drain pan, the circuit board is located inside the drain pan, the sensor with circuit board electricity is connected, the slip lid is installed on the drain pan, just the slide lid physical stamina enough is in thereby slide on the drain pan and shelter from the sensor. The beneficial effects of the utility model are that: the utility model discloses a touch fingerprint identification instrument's simple structure, the sensor can be effectively protected, the life of product can be prolonged.
Description
Technical field
This utility model relates to fingerprint identification technology field, particularly relates to touch finger-print recognising instrument.
Background technology
In current fingerprint acquisition device, generally using optical fingerprint acquisition apparatus, optical fingerprint collector uses the time long, and it gathers fingerprint table layer texture image.
The surface of finger contact prism, Light-Emitting Diode provides a light source, and image is by charge coupling device integrated circuit acquisition.Optical fingerprint sensor is reliable, and price is the most cheap, but has the Fingerprint recognition rate of covering the lowest to dirty finger and dry finger surface, the adaptation ability to environmental factorss such as temperature.But owing to being limited by light path, undistorted type harvester size is bigger.Generally there is more serious optical distortion；Acquisition window surface often has vestige to leave over phenomenon.CCD device may be aging because of the life-span, has the defects such as reduction picture quality, false fingerprint.
The principle of the fingerprint instrument optical system of prism is: fingerprint recess does not contact with prism and is totally reflected, and prominence oils and fats contacts with prism with perspiration, scatters；Thus generate the black white image of a secondary high contrast, then by imaging optical system imaging on a sensor, then transmit to host computer and process.
Due to the restriction of fingerprint collecting principle, optical fingerprint collector is difficult to dry finger collection to fingerprint image clearly, the problem causing this product low to dry finger discrimination (refusing sincere height).Finger is the most dry, and this problem is the most prominent.Under the weather conditions that winter is cold, the dry meeting of finger causes the finger of a lot of people to be identified.This problem is the most prominent at northern area.
In order to solve above-mentioned technical problem, have also appeared identification fingerprint by the way of biological radio frequency at present, biological radio frequency: the radio frequency sensor radiofrequency signal by sensor emission trace, the epidermal area penetrating finger obtains the lines of nexine with acquisition information.The clean level of finger is required relatively low by this method.Radio frequency is the newest technical scheme, and radio frequency is also the one of capacitive way, and radio frequency is also future thrust.But the structure of the fingerprint identification device of current biological RF-type is complicated, fragile, affects the service life of product.
Utility model content
This utility model provides a kind of touch finger-print recognising instrument, including slip lid, drain pan, sensor and circuit board, described sensor is arranged on described drain pan, described circuit board is positioned at described bottom shell, described sensor electrically connects with described circuit board, described slip lid is arranged on described drain pan, and described slide lid body can slide on described drain pan thus blocks described sensor.
As further improvement of the utility model, described slip lid is provided with pulley, and described drain pan is provided with chute, and described pulley embeds in described chute, and described pulley can move in described chute.
As further improvement of the utility model, described slip lid is provided with card article, and described drain pan is provided with draw-in groove, and described card article is that buckle-type is connected cooperation with described draw-in groove.
As further improvement of the utility model, described slip lid front end is provided with the first card article, and described drain pan front end is provided with the first draw-in groove, and described first card article is that buckle-type is connected cooperation with described first draw-in groove；Described slip lid rear end is provided with the second card article, and described drain pan rear end is provided with the second draw-in groove, and described second card article is that buckle-type is connected cooperation with described second draw-in groove.
As further improvement of the utility model, gap is there is between described circuit board and described slip lid, there is gap between described circuit board and described drain pan, this touch finger-print recognising instrument also includes that elastomeric element, described elastomeric element are installed between described circuit board and described drain pan.
As further improvement of the utility model, described elastomeric element is spring or shell fragment.
As further improvement of the utility model, described circuit board is provided with limited post, and described bottom shell is provided with spacing hole, and described limited post inserts in described spacing hole, and described limited post can vertically move in described spacing hole.
As further improvement of the utility model, state slip lid and use metal material to make.
As further improvement of the utility model, described sensor is glass sensor.
The beneficial effects of the utility model are: the simple in construction of touch finger-print recognising instrument of the present utility model, can effectively protect sensor, it is possible to extend the service life of product.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Fig. 2 is the schematic diagram of card article of the present utility model and card slot fit.
Fig. 3 is board structure of circuit schematic diagram of the present utility model.
Detailed description of the invention
As shown in Figures 1 to 3, the utility model discloses a kind of touch finger-print recognising instrument, including slip lid 1, drain pan 4, sensor 2 and circuit board 3, described sensor 2 electrically connects with described circuit board 3, described slip lid 1 is arranged on described drain pan 4, and described slip lid 1 can slide on described drain pan 4 thus blocks described sensor 2.
Use touch finger-print recognising instrument when, open slip lid 1, by exposed for sensor 2 outside；The when of not using touch finger-print recognising instrument, close slip lid 2, block sensor 2 by slip lid 2, thus damage equipment, preferably protection sensor 2 when preventing from touching finger-print recognising instrument landing, extend product service life.
Described slip lid 1 is provided with pulley, and described drain pan 4 is provided with chute, and described pulley embeds in described chute, and described pulley can move in described chute.
As in figure 2 it is shown, described slip lid 1 is provided with card article 6, described drain pan 4 is provided with draw-in groove 7, and described card article 6 is connected cooperation with described draw-in groove 7 for buckle-type.By Fig. 2 it can be seen that, card article 6 end is spherical shape, described buckle-type connects cooperation and refers to: draw-in groove 7 can elastic deformation, when card article 6 end embeds in draw-in groove 7, the opening of draw-in groove 7 opens slightly, when card article 6 end is positioned at draw-in groove 7, the opening of draw-in groove 7 inward collapsible, thus prevent card article 6 from departing from draw-in groove 7；When user firmly pulls slide lid body 1, card article 6 moves along with slip lid 1, and now the opening of draw-in groove 7 opens slightly, so that card article 6 departs from draw-in groove 7.
The card article 6 of described slip lid 1 is two, and draw-in groove 7 is also two, and slip lid 1 front end is provided with the first card article, and described drain pan 4 front end is provided with the first draw-in groove, and described first card article is that buckle-type is connected cooperation with described first draw-in groove；Described slip lid 1 rear end is provided with the second card article, and described drain pan 4 rear end is provided with the second draw-in groove, and described second card article is that buckle-type is connected cooperation with described second draw-in groove.
When slip lid 1 blocks sensor 2, the first card article embeds in the first draw-in groove, thus positions slip lid 1；When opening slip lid 1, will sensor 2 exposed outside time, the second card article embeds in the second draw-in groove, thus completes the location to slip lid 1.
There is gap between described circuit board 3 and described slip lid 1, there is gap between described circuit board 3 and described drain pan 4, this touch finger-print recognising instrument also includes that elastomeric element, described elastomeric element are installed between described circuit board 3 and described drain pan 4.
As embodiment of the present utility model, described elastomeric element is spring or shell fragment.
Described circuit board 3 is provided with limited post 5, and described drain pan 4 is internal is provided with spacing hole, and described limited post 5 inserts in described spacing hole, and described limited post 5 can vertically move in described spacing hole.
When user is pressed against on sensor 2 with hands, there may come a time when to damage sensor 2 and circuit board 3 because of the most excessive, in order to prevent the appearance of problem above, this utility model is mounted with elastomeric element between circuit board 3 and drain pan 4, when user exerts oneself excessive, suitable sinking understood by sensor 2 and circuit board 3, thus alleviate the strength of user, and limited post 5 can vertically move in described spacing hole, thus ensure that circuit board 3 can be all the time according to longitudinal motion, ensure product quality, increase the service life of product.
Described slip lid 1 uses metal material to make, and described sensor 3 is glass sensor.
This utility model uses biological RF fingerprint identification technology, and radio frequency sensor technology is to launch trace radiofrequency signal by sensor itself, and the epidermal area penetrating finger goes control to survey the lines of nexine, obtains optimal fingerprint image.Therefore to dry finger, Chinese finger, the difficulty finger such as wet finger is by may be up to 99%, false proof fingerprint ability is strong, the dermal of people is only responded by the recognition principle of fingerprint sensor, the problem fundamentally having stopped artificial fingerprint, wide warm area: be suitable for the coldest or extremely the hottest area.Because radio frequency sensor produces high-quality image, therefore radio-frequency technique is the most reliable, the strongest solution.In addition, high quality graphic also allows for reducing sensor, it is not necessary to sacrifice the reliability of certification, thus reduces cost and make being applied in the removable and unconstrained any field of size of radio frequency sensor thought.
Radio frequency sensor extends on the basis of capacitance type sensor, it be utilize finger itself as panel, and as medium.Place a finger on around sensor region, produce a radiofrequency signal the lowest by finger.Then sensor detection signal.The diffusion of signal is the mountain valley according to fingerprint and ridge；Sensor array calculates diffusion and forms the structure of fingerprint.Then you just can obtain optimal fingerprint image with dynamic optimization radio frequency signal frequency and level.Because radio frequency sensor produces high-quality image, therefore radio frequency is the most reliable, has solution the most effectively.
The radio frequency sensor that sensor 2 of the present utility model i.e. uses, in FIG it can be seen that the finger induction zone of sensor 2.
Above content is to combine concrete preferred implementation further detailed description of the utility model, it is impossible to assert that of the present utility model being embodied as is confined to these explanations.For this utility model person of an ordinary skill in the technical field, without departing from the concept of the premise utility, it is also possible to make some simple deduction or replace, all should be considered as belonging to protection domain of the present utility model.
Claims (9)
1. one kind touches finger-print recognising instrument, it is characterized in that: include slip lid, drain pan, sensor and circuit board, described sensor is arranged on described drain pan, described circuit board is positioned at described bottom shell, described sensor electrically connects with described circuit board, described slip lid is arranged on described drain pan, and described slide lid body can slide on described drain pan thus blocks described sensor.
Touch finger-print recognising instrument the most according to claim 1, it is characterised in that: described slip lid is provided with pulley, and described drain pan is provided with chute, and described pulley embeds in described chute, and described pulley can move in described chute.
Touch finger-print recognising instrument the most according to claim 2, it is characterised in that: described slip lid is provided with card article, and described drain pan is provided with draw-in groove, and described card article is that buckle-type is connected cooperation with described draw-in groove.
Touch finger-print recognising instrument the most according to claim 3, it is characterised in that: described slip lid front end is provided with the first card article, and described drain pan front end is provided with the first draw-in groove, and described first card article is that buckle-type is connected cooperation with described first draw-in groove；Described slip lid rear end is provided with the second card article, and described drain pan rear end is provided with the second draw-in groove, and described second card article is that buckle-type is connected cooperation with described second draw-in groove.
5. according to the touch finger-print recognising instrument described in any one of Claims 1-4, it is characterized in that: between described circuit board and described slip lid, there is gap, gap is there is between described circuit board and described drain pan, this touch finger-print recognising instrument also includes that elastomeric element, described elastomeric element are installed between described circuit board and described drain pan.
Touch finger-print recognising instrument the most according to claim 5, it is characterised in that: described elastomeric element is spring or shell fragment.
Touch finger-print recognising instrument the most according to claim 5, it is characterised in that: described circuit board is provided with limited post, and described bottom shell is provided with spacing hole, and described limited post inserts in described spacing hole, and described limited post can vertically move in described spacing hole.
Touch finger-print recognising instrument the most according to claim 1, it is characterised in that: described slip lid uses metal material to make.
Touch finger-print recognising instrument the most according to claim 1, it is characterised in that: described sensor is glass sensor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620329686.3U CN205644580U (en) | 2016-04-19 | 2016-04-19 | Touch fingerprint identification instrument |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620329686.3U CN205644580U (en) | 2016-04-19 | 2016-04-19 | Touch fingerprint identification instrument |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205644580U true CN205644580U (en) | 2016-10-12 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620329686.3U Active CN205644580U (en) | 2016-04-19 | 2016-04-19 | Touch fingerprint identification instrument |
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| CN (1) | CN205644580U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107437058A (en) * | 2017-04-21 | 2017-12-05 | 广州腾耐计算机科技有限公司 | A kind of finger-print recognising instrument |
-
2016
- 2016-04-19 CN CN201620329686.3U patent/CN205644580U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107437058A (en) * | 2017-04-21 | 2017-12-05 | 广州腾耐计算机科技有限公司 | A kind of finger-print recognising instrument |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |