CN209728770U - A kind of fingerprint identification device based on fpga - Google Patents
A kind of fingerprint identification device based on fpga Download PDFInfo
- Publication number
- CN209728770U CN209728770U CN201920827420.5U CN201920827420U CN209728770U CN 209728770 U CN209728770 U CN 209728770U CN 201920827420 U CN201920827420 U CN 201920827420U CN 209728770 U CN209728770 U CN 209728770U
- Authority
- CN
- China
- Prior art keywords
- fingerprint identification
- cover board
- fingerprint
- identification area
- machine ontology
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Landscapes
- Image Input (AREA)
- Measurement Of The Respiration, Hearing Ability, Form, And Blood Characteristics Of Living Organisms (AREA)
Abstract
The utility model discloses a kind of fingerprint identification devices based on fpga, including fingerprint recognition machine ontology, the side of fingerprint recognition machine ontology is equipped with fingerprint identification area, the two sides of fingerprint recognition machine ontology are installed with mounting plate, mounting plate is equipped with mounting hole, cover board is installed in fingerprint identification area, cover board one end is equipped with the first slide opening.When use, pull ring can be pulled downward on, cover board is driven to move down, spring is compressed, until cover board is detached from fingerprint identification area, i.e. available finger is placed in fingerprint identification area on collection plate carries out fingerprint collecting, after acquiring successfully, cover board can be covered the front port and lower port of fingerprint identification area by the screen resilience of spring by unclamping pull ring, pass through the elasticity of spring, limitation cover board moves down, can effectively prevent when not used external dust be attached on collection plate, also can guarantee dust-proof effect in fingerprint identification area without collected people's conscious cover cover board.
Description
Technical field
The utility model relates to a kind of fingerprint identification devices based on fpga.
Background technique
FPGA, i.e. field programmable gate array, it is further on the basis of the programming devices such as PAL, GAL, CPLD
The product of development, it is that occur as one of specific integrated circuit field semi-custom circuit, has both solved customization electricity
The deficiency on road, and overcome the limited disadvantage of original programming device gate circuit number.
The existing fingerprint identification device based on fpga changes previous fingerprint collecting face using field programmable gate array
Product is small, and finger can not only be pressed in each position of collection plate of fingerprint identification area, and finger can roll on collection plate, be used for
The finger print information at other positions of finger is acquired, collection plate pressure sensing is more accurate, while longer life expectancy, and whole based on fpga
The two sides of fingerprint identification device be provided with mounting plate, mounting hole is set in mounting plate, screw can be inserted into mounting hole, and will
Screw is screwed on wall and is mounted in the expansion tube on wall, and can stablize to be placed on metope by the fingerprint identification device makes
With, in order to reach good collection effect, the side of fingerprint identification area is provided with the cover board equipped with turnover mechanism, when not in use,
The dust in outside air can be prevented to be attached on collection plate by cover plate lid in the front side of fingerprint identification area, and in use, can incite somebody to action
Cover board is directly turned to other positions, can be used to acquisition fingerprint, and existing shortcoming has: the setting of this cover board, only
Cover plate lid can just be played into dust-proof effect in fingerprint identification area consciously in collected people, when collected people is not referring to cover plate lid
Line cog region, that is, be not achieved dust-proof effect.
Utility model content
The purpose of this utility model is to provide a kind of fingerprint identification devices based on fpga, to solve above-mentioned background technique
Middle proposition is only in collected people consciously by cover plate lid the problem of fingerprint identification area can just play dust-proof effect.
To achieve the above object, the utility model provides the following technical solutions: a kind of fingerprint identification device based on fpga,
Including fingerprint recognition machine ontology, the side of the fingerprint recognition machine ontology is equipped with fingerprint identification area, the fingerprint recognition machine ontology
Two sides be installed with mounting plate, the mounting plate is equipped with mounting hole, is installed with cover board, the cover board in the fingerprint identification area
One end is equipped with the first slide opening, and one end of the fingerprint recognition machine ontology is installed with connecting rod close to the position of fingerprint identification area, institute
The first slide opening insertion connecting rod is stated, one end of the cover board is installed with draw bar, and the connecting rod, which is equipped with to insert, portals, described to lead
Draw bar and insert to insert and portal and one end of draw bar is installed with pull ring, is arranged with spring on the draw bar.
Preferably, the cover board inner end is installed with soft board, and soft board is square plate structure, and it is sliding that soft board is equipped with second
Hole, connecting rod run through the second slide opening.
Preferably, the cover board is L-square structure.
Preferably, the connecting rod is U-shaped rod structure.
Preferably, the pull ring is circular ring structure.
Compared with prior art, the utility model has the beneficial effects that driving cover board in use, pull ring can be pulled downward on
It moves down, spring is compressed, and by the first slide opening of two sides and being slidably matched for connecting rod, can be limited cover board and be moved up and down cross
To movement, cover board moves up and down stabilization, until cover board is detached from fingerprint identification area, i.e., it is available that finger is placed in fingerprint identification area
Fingerprint collecting is carried out on collection plate, after acquiring successfully, fingerprint can be covered for cover board by unclamping pull ring by the screen resilience of spring
The front port and lower port of cog region reduce cover board supporting firmly to fingerprint recognition machine ontology lower end by the soft protection of soft board
It weighs evil wounded, protects the shell of fingerprint recognition machine ontology, by the elasticity of spring, limit cover board and move down, can effectively prevent not
Used time external dust is attached on collection plate, also can guarantee in fingerprint identification area without collected people's conscious cover cover board
Dust-proof effect, solving only can just play asking for dust-proof effect in fingerprint identification area for cover plate lid consciously in collected people
Topic.
Detailed description of the invention
Fig. 1 is the schematic front view of the utility model；
Fig. 2 is the main view local cutting schematic diagram of the utility model；
Fig. 3 is the left view schematic diagram of the utility model.
In figure: 1 fingerprint recognition machine ontology, 2 fingerprint identification areas, 3 mounting plates, 4 mounting holes, 5 cover boards, 6 first slide openings, 7 connect
Extension bar, 8 soft boards, 9 second slide openings, 10 draw bars, 11 insert portal, 12 pull rings, 13 springs.
Specific embodiment
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model
Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole
Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without making creative work
Every other embodiment obtained, fall within the protection scope of the utility model.
Fig. 1, Fig. 2 and Fig. 3 are please referred to, the utility model provides a kind of technical solution: a kind of fingerprint recognition based on fpga
Device, including fingerprint recognition machine ontology 1, the side of fingerprint recognition machine ontology 1 are equipped with fingerprint identification area 2, and fingerprint identification area 2 is arranged
In the lower middle side part of fingerprint recognition machine ontology 1, the two sides of fingerprint recognition machine ontology 1 are installed with mounting plate 3, and mounting plate 3 is rectangular
Plate structure, quantity are two, and setting side, shell with fingerprint recognition machine ontology 1 in the end of fingerprint recognition machine ontology 1 or so are
Integrated through injection molding part, mounting plate 3 are equipped with mounting hole 4, and mounting hole 4 is borehole structure, and the center of mounting plate 3 is arranged in, can
It is inserted into screw in mounting hole 4, and screw is screwed on wall and is mounted in the expansion tube on wall, it can be by the fingerprint recognition
Device, which is stablized to be placed on metope, to be used, and cover board 5 is installed in fingerprint identification area 2, cover board 5 covers the front end in fingerprint identification area 2
Mouthful, and the lower front part of sliding contact fingerprint recognition ontology 1, cover board 5 are L-square structure, 5 one end of cover board is equipped with the first slide opening
6, the quantity of the first slide opening 6 is two, and the lower end left and right sides of cover board 5 is arranged in, and is circular pore structure, fingerprint recognition machine ontology 1
One end, connecting rod 7 is installed with close to the position of fingerprint identification area 2, the upper end of connecting rod 7 is connected by the way of resin glue sticking
The lower end of fingerprint recognition machine ontology 1 is connect, the first slide opening 6 is inserted into connecting rod 7, and the first slide opening 6 and the two sides of connecting rod 7 are inserted in sliding
Enter cooperation, and section is cooperated to be all circle, by the first slide opening 6 of two sides and being slidably matched for connecting rod 7, cover board 5 can be limited
Transverse shifting is moved up and down, cover board 5 moves up and down stabilization, and connecting rod 7 is U-shaped rod structure, and 5 inner end of cover board is installed with soft board 8,
The interior lower end of the lower end of soft board 8 connecting cover plate 5 by the way of resin glue sticking, the material of soft board 8 is latex, soft
Plate 8 is soft, and with a thickness of 2 millimeters, soft board 8 is square plate structure, and soft board 8 is equipped with the second slide opening 9, the second slide opening 9
For borehole structure, quantity is two, and the left and right sides of soft board 8 is arranged in, and the second slide opening 9 corresponds the first slide opening 6, connecting rod
7 are slidably inserted into the second slide opening 9, when the interior lower end of cover board 5 compresses the lower end of fingerprint recognition machine ontology 1, pass through soft board 8
Soft protection reduces cover board 5 and compresses injury firmly to 1 lower end of fingerprint recognition machine ontology, protects the shell of fingerprint recognition machine ontology 1,
Connecting rod 7 runs through the second slide opening 9.
Refering to fig. 1, Fig. 2 and Fig. 3, one end of cover board 5 are installed with draw bar 10, and draw bar 10 is vertically arranged round bar knot
Structure, the lower end center of the upper end welding cover board 5 of draw bar 10, connecting rod 7, which is equipped with to insert, portals 11, inserts 11 settings of portalling and exists
The middle side of the transverse part of connecting rod 7, the slotting one end for inserting portal 11 and draw bar 10 out of draw bar 10 are installed with pull ring 12, draw bar
10 portal 11 with slotting to be slidably inserted into cooperation, and section is cooperated to be all circle, and pull ring 12 is circular ring structure, and the upside of pull ring 12 connects
The lower end of draw bar 10 is connect, pull ring 12 and draw bar 10 are integrated through injection molding part, are arranged with spring 13, spring 13 on draw bar 10
It is at this time nature for compression rebound type, length is 13 centimetres, and the length after maximum compressibility is 4 centimetres, and initial compression is returned
Elastic force is 5 newton, and the sum of cover board 5 and upper part connection component gravity are 3 newton, by the elasticity of spring 13, limits cover board 5
It moves down.
When the utility model is specifically implemented: screw can be inserted into mounting hole 4, and screw is screwed on wall and is mounted on
In expansion tube on wall, stable be placed on metope of the fingerprint identification device can be used, in use, drawing can be pulled downward on
Ring 12 drives cover board 5 to move down, and spring 13 is compressed, can by the first slide opening 6 of two sides and being slidably matched for connecting rod 7
Limitation cover board 5 moves up and down transverse shifting, and cover board 5 moves up and down stabilization, until cover board 5 is detached from fingerprint identification area 2, that is, can be used will
Finger, which is placed in fingerprint identification area 2, carries out fingerprint collecting on collection plate, after acquiring successfully, unclamp pull ring 12, pass through spring
Cover board 5 can be covered the front port and lower port of fingerprint identification area 2 by 13 screen resilience, by the soft protection of soft board 8, be reduced
Cover board 5 compresses injury to 1 lower end of fingerprint recognition machine ontology firmly, protects the shell of fingerprint recognition machine ontology 1, passes through spring 13
Elasticity, limitation cover board 5 move down, can effectively prevent when not used external dust be attached on collection plate, have without collected people
Covering cover board 5 in fingerprint identification area 2 for consciousness also can guarantee dust-proof effect.
While there has been shown and described that the embodiments of the present invention, for the ordinary skill in the art,
It is understood that these embodiments can be carried out with a variety of variations in the case where not departing from the principles of the present invention and spirit, repaired
Change, replacement and variant, the scope of the utility model is defined by the appended claims and the equivalents thereof.
Claims (5)
1. a kind of fingerprint identification device based on fpga, including fingerprint recognition machine ontology (1), it is characterised in that: the fingerprint is known
The side of other machine ontology (1) is equipped with fingerprint identification area (2), and the two sides of the fingerprint recognition machine ontology (1) are installed with mounting plate
(3), the mounting plate (3) is equipped with mounting hole (4), is installed with cover board (5) on the fingerprint identification area (2), the cover board (5)
One end is equipped with the first slide opening (6), and one end of the fingerprint recognition machine ontology (1) is installed with close to the position of fingerprint identification area (2)
Connecting rod (7), first slide opening (6) are inserted into connecting rod (7), and one end of the cover board (5) is installed with draw bar (10), described
Connecting rod (7) be equipped with insert portals (11), the draw bar (10) insert insert portal (11) and one end of draw bar (10) install
Have pull ring (12), is arranged with spring (13) on the draw bar (10).
2. a kind of fingerprint identification device based on fpga according to claim 1, it is characterised in that: in the cover board (5)
End is installed with soft board (8), and soft board (8) is square plate structure, and soft board (8) is equipped with the second slide opening (9), connecting rod (7)
Through the second slide opening (9).
3. a kind of fingerprint identification device based on fpga according to claim 2, it is characterised in that: the cover board (5) is
L-square structure.
4. a kind of fingerprint identification device based on fpga according to claim 2, it is characterised in that: the connecting rod (7)
For U-shaped rod structure.
5. a kind of fingerprint identification device based on fpga according to claim 1, it is characterised in that: the pull ring (12) is
Circular ring structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920827420.5U CN209728770U (en) | 2019-06-03 | 2019-06-03 | A kind of fingerprint identification device based on fpga |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920827420.5U CN209728770U (en) | 2019-06-03 | 2019-06-03 | A kind of fingerprint identification device based on fpga |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209728770U true CN209728770U (en) | 2019-12-03 |
Family
ID=68675012
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920827420.5U Expired - Fee Related CN209728770U (en) | 2019-06-03 | 2019-06-03 | A kind of fingerprint identification device based on fpga |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209728770U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112153840A (en) * | 2020-09-29 | 2020-12-29 | 深圳市千里智能控制科技有限公司 | Multi-axis motion controller with network structure |
-
2019
- 2019-06-03 CN CN201920827420.5U patent/CN209728770U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112153840A (en) * | 2020-09-29 | 2020-12-29 | 深圳市千里智能控制科技有限公司 | Multi-axis motion controller with network structure |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN209728770U (en) | A kind of fingerprint identification device based on fpga | |
| EP2261936B1 (en) | Remote control | |
| CN210456039U (en) | Integrated environment-friendly garbage can convenient for classification | |
| US20120064384A1 (en) | Electronic device with battery latching assembly | |
| CN212462194U (en) | Multichannel thing networking data acquisition device | |
| CN108176999A (en) | A kind of notebook computer shell processing unit (plant) | |
| CN217912366U (en) | Metal product punching machine | |
| CN114242625A (en) | Packaging mechanism for wireless communication module | |
| CN210683598U (en) | Cutting equipment for producing liquid crystal display screen component | |
| CN207163646U (en) | A kind of intelligent digital pressure gauge | |
| DE102013112953B4 (en) | Push-button switch with display and playback function | |
| CN215833960U (en) | Manpower is punching card device for resource management | |
| CN206943771U (en) | A kind of dispatching of power netwoks runs servicing unit of relieving | |
| CN217397183U (en) | Placer that computer integrated chip used | |
| CN213990856U (en) | Monitoring equipment is with pin-connected panel mainboard mounting bracket | |
| CN209627439U (en) | A kind of mobile phone convenient for plug mobile phone card | |
| CN201435327Y (en) | Scissor type bracket structure of button | |
| CN213783894U (en) | Computer network switch puts frame | |
| CN212011445U (en) | Switch equipment access device with anticreep effect | |
| CN209462449U (en) | A kind of Portable movable instructor in broadcasting cabinet | |
| CN209566690U (en) | A kind of CUSTOM HOUSE HOTEL collection device for hotel management | |
| CN209573413U (en) | A kind of sole dimensions electronic detecting device | |
| CN209785073U (en) | Attendance machine for enterprise management | |
| CN221288649U (en) | Layered screening and collecting device for traditional Chinese medicine crushing machine | |
| CN219105952U (en) | Remote gate switch device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20191203 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |