CN108460853A - A kind of fingerprint precisely distinguishes punched-card machine - Google Patents
A kind of fingerprint precisely distinguishes punched-card machine Download PDFInfo
- Publication number
- CN108460853A CN108460853A CN201810200252.7A CN201810200252A CN108460853A CN 108460853 A CN108460853 A CN 108460853A CN 201810200252 A CN201810200252 A CN 201810200252A CN 108460853 A CN108460853 A CN 108460853A
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- Prior art keywords
- fingerprint
- fingerprint collecting
- spray
- fog
- slot
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- 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.)
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Classifications
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- G—PHYSICS
- G07—CHECKING-DEVICES
- G07C—TIME OR ATTENDANCE REGISTERS; REGISTERING OR INDICATING THE WORKING OF MACHINES; GENERATING RANDOM NUMBERS; VOTING OR LOTTERY APPARATUS; ARRANGEMENTS, SYSTEMS OR APPARATUS FOR CHECKING NOT PROVIDED FOR ELSEWHERE
- G07C1/00—Registering, indicating or recording the time of events or elapsed time, e.g. time-recorders for work people
- G07C1/10—Registering, indicating or recording the time of events or elapsed time, e.g. time-recorders for work people together with the recording, indicating or registering of other data, e.g. of signs of identity
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M35/00—Devices for applying media, e.g. remedies, on the human body
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06V—IMAGE OR VIDEO RECOGNITION OR UNDERSTANDING
- G06V40/00—Recognition of biometric, human-related or animal-related patterns in image or video data
- G06V40/10—Human or animal bodies, e.g. vehicle occupants or pedestrians; Body parts, e.g. hands
- G06V40/12—Fingerprints or palmprints
- G06V40/13—Sensors therefor
- G06V40/1318—Sensors therefor using electro-optical elements or layers, e.g. electroluminescent sensing
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Biomedical Technology (AREA)
- Heart & Thoracic Surgery (AREA)
- Hematology (AREA)
- Anesthesiology (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Human Computer Interaction (AREA)
- Multimedia (AREA)
- Theoretical Computer Science (AREA)
- Apparatus For Disinfection Or Sterilisation (AREA)
Abstract
A kind of fingerprint precisely distinguishes punched-card machine, including fingerprint recognition area, viewing area, key zone, and fingerprint recognition area includes that fingerprint collecting slot and the spray water below the fingerprint collecting slot hold pond；There are fingerprint collecting faces and finger sensitive surface inside the fingerprint collecting slot, the fingerprint collecting face is located inside of the lower section far from panel and is obliquely installed upwards, the finger sensitive surface by being extending vertically into groove top upwards on the inside of the fingerprint collecting face, the fitting of fingerprint collecting face surface is equipped with optical fingerprint collecting module, and finger sensitive surface surface is equipped with photoelectric sensor；The fingerprint collecting slot notch is equipped with lower fog-spray nozzle with the center on the downside of panel junction, the fingerprint collecting slot notch is equipped with fog-spray nozzle with the center on the upside of panel junction, and center of the fingerprint collecting slot notch respectively with panel junction both sides is equipped with side spray head.
Description
Technical field
The present invention relates to fingerprint machine device field, more specifically to a kind of fingerprint precisely distinguishes punched-card machine.
Background technology
With the development of economy and society, fingerprint machine device is widely used in library, office building, resident living area, work
The occasions such as plant area of factory, to be efficiently completed such as identification, attendance record function.Meanwhile it generally also being set on entrance guard device
Display screen is set, provides such as documentary whip, identity validation situation, weather, temperature, time information to the user.
However, fingerprint machine is very sensitive to the temperature of fingerprint, lines and degree of drying, it is especially dry in winter
When, the finger of people is often very dry, leads to fingerprint machine device None- identified finger print information；And fingerprint machine is used by more people,
It is easy the virus that spreads germs.
Invention content
A kind of fingerprint of present invention offer precisely distinguishes punched-card machine, fingerprint of the invention essence in view of the deficiencies of the prior art
Quasi- recognition punched-card machine is sprayed using fog-spray nozzle opponent's fingering row side of four direction, and the soft moistening that finger becomes is made to be conducive to refer to
Line identifies, and at the same time carrying out cleaning to finger print acquisition module improves identification accuracy, using thimerosal as spray water and energy
Enough avoid spread of germs.
The specific technical solution of the present invention is as follows：A kind of fingerprint precisely distinguishes punched-card machine, including fingerprint recognition area, display
Area, key zone, fingerprint recognition area includes that fingerprint collecting slot and the spray water below the fingerprint collecting slot hold pond；
There are fingerprint collecting face and finger sensitive surface inside the fingerprint collecting slot, the fingerprint collecting face is located at lower section far from face
The inside of plate is obliquely installed upwards, and the finger sensitive surface by being extending vertically into groove top upwards on the inside of the fingerprint collecting face, institute
It states the fitting of fingerprint collecting face surface and optical fingerprint collecting module is installed, finger sensitive surface surface is equipped with photoelectric sensing
Device；
The fingerprint collecting slot notch is equipped with lower fog-spray nozzle, the fingerprint collecting slot notch with the center on the downside of panel junction
Upper fog-spray nozzle is installed with the center on the upside of panel junction, the fingerprint collecting slot notch respectively with panel junction both sides
Center is equipped with side spray head.
The optical fingerprint collecting module detects that finger is by controlling after for detecting whether there is finger close
System controls the lower fog-spray nozzle, the upper fog-spray nozzle and side spray head spraying.
As a preference of the present invention, the lower fog-spray nozzle, the upper fog-spray nozzle and the side spray head are along notch side
Jet width is 10mm ~ 15mm.
The lower fog-spray nozzle, the upper fog-spray nozzle and the side spray head spray regime and finger width are close, can make
Fog preferably covers finger surface.
As a preference of the present invention, the lower fog-spray nozzle injection direction is parallel with panel direction, the upper fog-spray nozzle injection
Direction is from panel in downward direction tilted 30 ° to the fingerprint collecting slot slot, and the side spray head injection direction is by panel transverse direction
Tilted 30 ° to the fingerprint collecting slot slot of direction.
Spray injection to fingerprint boss is identified most beneficial for acquisition module, if the positive opponent of fog-spray nozzle injection direction
Refer to, then will be ejected into the bottom of fingerprint recess, is unfavorable for acquisition module identification instead；Finger is in close to orientation angle when panel
Between panel angle of inclination and acquisition module angle of inclination, therefore the adjusting lower fog-spray nozzle injection direction is parallel with panel direction,
From panel in downward direction tilted 30 ° to the fingerprint collecting slot slot, the side spray head sprays the upper fog-spray nozzle injection direction
Penetrating direction can be close to finger root, finger tip portion and finger from panel horizontal direction to tilted 30 ° of the fingerprint collecting slot slot
The tangent plane angle of inclination of side is not easy to be ejected into the concave bottom of fingerprint, fingerprint is contributed to precisely to identify by side spraying.
As a preference of the present invention, the fog that the upper fog-spray nozzle is sprayed downwards covers completely after reaching the fingerprint collecting face
Cover the range of the optical fingerprint collecting module.
The upper fog-spray nozzle is other than to finger fingertip side spray, moreover it is possible to be ejected into the optical fingerprint collecting module, have
The spot left is touched conducive to finger on the optical fingerprint collecting module is cleaned, helps to acquire fingerprint.
As a preference of the present invention, top is equipped with blow head, the blow head air blowing side in the fingerprint collecting slot slot
To vertically downward, and it is right against the top half on the optical fingerprint collecting module inclined-plane.
The case where there are condensation vapors after the upper fog-spray nozzle sprays the optical fingerprint collecting module, is blown by described
Gas head, which blows afloat the optical fingerprint collecting module, can be such that steam is blown off along inclined-plane, or directly volatilize, and avoid steam
Fingerprint recognition is had an impact, the cleaning of the optical fingerprint collecting module is more favorable to.
As a preference of the present invention, the vertical range of the photoelectric sensor and the optical fingerprint collecting module the top
No more than 20mm.
The photoelectric sensor is identified when finger is close to the optical fingerprint collecting module, may be produced if installation farther out
Green hand refers to the case where mobile route is without the photoelectric sensor identification range, generally by the photoelectric sensor and the light
Finger print acquisition module is learned to be arranged within 20mm and can effectively identify in the distance of vertical direction.
As a preference of the present invention, the spray water, which holds one side bottom of pond, is connected with conduit, distinguish after the conduit fork
It is connected to the lower fog-spray nozzle, the upper fog-spray nozzle and the side spray head.
As a preference of the present invention, the spray water hold at the panel of the pond other side be equipped with water inlet, the water inlet with
The spray water holds the connection of pond inner cavity, and the water inlet open height holds pool capacity chamber highest point higher than the spray water.
As a preference of the present invention, the spray water holds pool capacity bottom of chamber portion installation having heaters, the heater will spray
Fog is heated to 40 ~ 45 DEG C.
40 ~ 45 DEG C of warm water are heated to by the setting heater to spray water to spray and finger surface can be made to become
Softness is more advantageous to acquisition module recognition fingerprint, is more favorable to fog volatilization and is not easy that acquisition module surface is made to generate steam,
And finger will not be stimulated to keep human body sensory comfortable.
As a preference of the present invention, it is thimerosal that the spray water, which holds Chi Neipenwushui,.
Punched-card machine is the instrument that more people use, and is easy to cause bacterial virus cross-infection propagation, and spray water uses thimerosal
It can play the role of sterilizing, a more clean use environment is provided.
In conclusion the invention has the advantages that：
The fingerprint of the present invention is precisely distinguished punched-card machine and is sprayed using fog-spray nozzle opponent's fingering row side of four direction, and finger is made to become
Soft moistening be conducive to fingerprint recognition, and at the same time carrying out cleaning to finger print acquisition module improves identification accuracy, using disappearing
Venom can avoid spread of germs again as spray water.
Description of the drawings
Fig. 1 is the front view that fingerprint of the present invention precisely distinguishes punched-card machine；
Fig. 2 is the side sectional view that fingerprint of the present invention precisely distinguishes that punched-card machine fingerprint distinguishes area；
Fig. 3 is that fingerprint of the present invention precisely distinguishes sectional side view of the punched-card machine finger close to fingerprint recognition area when；
Fig. 4 is A-A sectional views when finger distinguishes area close to fingerprint in Fig. 2 of the present invention；
In figure, 1- fingerprints distinguish area, 11- fingerprint collectings slot, 111- fingerprint collectings face, 1111- optical fingerprint collecting modules, 112-
Fog-spray nozzle under finger sensitive surface, 1121- photoelectric sensors, 113-, the upper fog-spray nozzles of 114-, 115- side spray head, 116- blow heads,
12- spray waters hold pond, 121- conduits, 122- water inlets, 123- heaters, the viewing areas 2-, the key zones 3-,.
Specific implementation mode
Below in conjunction with attached drawing, by specific embodiment, the invention will be further described.
As shown in Figure 1, Figure 2, a kind of fingerprint precisely distinguishes punched-card machine, including fingerprint recognition area 1, viewing area 2, key zone 3, fingerprint
Recognition area 1 includes that fingerprint collecting slot 11 and the spray water positioned at 11 lower section of fingerprint collecting slot hold pond 12；
There are fingerprint collecting faces 111 and finger sensitive surface 112 inside fingerprint collecting slot 11, and it is remote that fingerprint collecting face 111 is located at lower section
Inside from panel is obliquely installed upwards, and finger sensitive surface 112 is extending vertically into groove top upwards by 111 inside of fingerprint collecting face,
The fitting of 111 surface of fingerprint collecting face is equipped with optical fingerprint collecting module 1111, and 112 surface of finger sensitive surface is equipped with photoelectric transfer
Sensor 1121；
11 notch of fingerprint collecting slot is equipped with lower fog-spray nozzle 113,11 notch of fingerprint collecting slot with the center on the downside of panel junction
Upper fog-spray nozzle 114 is installed with the center on the upside of panel junction, 11 notch of fingerprint collecting slot respectively with panel junction both sides
Center side spray head 115 is installed.
Optical fingerprint collecting module 1111 detects that finger is by controlling after for detecting whether there is finger close
System control lower fog-spray nozzle 113, upper fog-spray nozzle 114 and side spray head 115 are sprayed.
Such as Fig. 1, the jet width of lower fog-spray nozzle 113, upper fog-spray nozzle 114 and side spray head 115 along notch side be 10mm ~
15mm。
Lower fog-spray nozzle 113, upper fog-spray nozzle 114 and 115 spray regime of side spray head and finger width are close, can make fog
Preferably covering finger surface.
Such as Fig. 3, Fig. 4, lower 113 injection direction of fog-spray nozzle is parallel with panel direction, and 114 injection direction of upper fog-spray nozzle is by panel
In downward direction tilted 30 ° to 11 slot of fingerprint collecting slot, 115 injection direction of side spray head is from panel horizontal direction to fingerprint collecting
Tilted 30 ° of 11 slot of slot.
Spray injection to fingerprint boss is identified most beneficial for acquisition module, if the positive opponent of fog-spray nozzle injection direction
Refer to, then will be ejected into the bottom of fingerprint recess, is unfavorable for acquisition module identification instead；Finger is in close to orientation angle when panel
Between panel angle of inclination and acquisition module angle of inclination, therefore 113 injection direction of fog-spray nozzle is parallel with panel direction under adjusting, on
114 injection direction of fog-spray nozzle from panel in downward direction tilted 30 ° to 11 slot of fingerprint collecting slot, 115 injection direction of side spray head
It being capable of cutting close to finger root, finger tip portion and finger side from panel horizontal direction to tilted 30 ° of 11 slot of fingerprint collecting slot
Flat inclination is not easy to be ejected into the concave bottom of fingerprint, fingerprint is contributed to precisely to identify by side spraying.
Optics is completely covered such as Fig. 2, Fig. 3, behind the fog arrival fingerprint collecting face 111 that upper fog-spray nozzle 114 is sprayed downwards to refer to
The range of line acquisition module 1111.
Upper fog-spray nozzle 114 is other than to finger fingertip side spray, moreover it is possible to be ejected into optical fingerprint collecting module 1111, favorably
The spot left is touched in finger on cleaning optical fingerprint collecting module 1111, helps to acquire fingerprint.
Such as Fig. 2, top is equipped with blow head 116 in 11 slot of fingerprint collecting slot, 116 blowing direction of blow head vertically downward,
And it is right against the top half on 1111 inclined-plane of optical fingerprint collecting module.
The case where there are condensation vapors after upper fog-spray nozzle 114 sprays optical fingerprint collecting module 1111, passes through blow head
116 pairs of optical fingerprint collecting modules 1111, which are blown afloat, can be such that steam is blown off along inclined-plane, or directly volatilize, and avoid steam pair
Fingerprint recognition has an impact, and is more favorable to the cleaning of optical fingerprint collecting module 1111.
As shown in Figure 1, Figure 2, photoelectric sensor 1121 and the vertical range of 1111 the top of optical fingerprint collecting module are not more than
20mm。
Photoelectric sensor 1121 is identified when finger is close to optical fingerprint collecting module 1111, may be produced if installation farther out
Green hand refers to the case where mobile route is without 1121 identification range of photoelectric sensor, generally refers to photoelectric sensor 1121 with optics
Line acquisition module 1111 is arranged within 20mm and can effectively identify in the distance of vertical direction.
Such as Fig. 1, spray water holds 12 1 side bottom of pond and is connected with conduit 121, and conduit 121 is respectively connected to lower spraying after diverging
First 113, upper fog-spray nozzle 114 and side spray head 115.
As shown in Figure 1, Figure 2, spray water holds and is equipped with water inlet 122 at 12 other side panel of pond, and water inlet 122 is contained with spray water
The connection of 12 inner cavity of pond is put, and 122 height of water inlet holds 12 vessel highest point of pond higher than spray water.
Such as Fig. 2, spray water holds 12 vessel bottom of pond installation having heaters 123, and spray water is heated to 40 by heater 123
~45℃。
40 ~ 45 DEG C of warm water are heated to by setting heater 123 to spray water to spray and finger surface can be made to become
Softness is more advantageous to acquisition module recognition fingerprint, is more favorable to fog volatilization and is not easy that acquisition module surface is made to generate steam,
And finger will not be stimulated to keep human body sensory comfortable.
It is thimerosal that spray water, which holds 12 internal spraying water of pond,.
Punched-card machine is the instrument that more people use, and is easy to cause bacterial virus cross-infection propagation, and spray water uses thimerosal
It can play the role of sterilizing, a more clean use environment is provided.
Embodiment described above is only that the preferred embodiment of the present invention is described, not to the design of the present invention
It is defined with range.Under the premise of not departing from design concept of the present invention, technical side of the ordinary people in the field to the present invention
The all variations and modifications that case is made, should all drop into protection scope of the present invention, the claimed technology contents of the present invention,
Through all recording in detail in the claims.
Claims (10)
1. a kind of fingerprint precisely distinguishes punched-card machine, including fingerprint distinguishes area（1）, viewing area（2）, key zone（3）, feature exists
In：The fingerprint distinguishes area（1）Including fingerprint collecting slot（11）With positioned at the fingerprint collecting slot（11）The spray water of lower section is contained
Put pond（12）；
The fingerprint collecting slot（11）There are fingerprint collecting faces for inside（111）With finger sensitive surface（112）, the fingerprint collecting face
（111）It is obliquely installed upwards positioned inside of the lower section far from panel, the finger sensitive surface（112）By the fingerprint collecting face
（111）Inside is extending vertically into groove top, the fingerprint collecting face upwards（111）Surface fitting is equipped with optical fingerprint collecting module
（1111）, the finger sensitive surface（112）Surface is equipped with photoelectric sensor（1121）；
The fingerprint collecting slot（11）Notch is equipped with lower fog-spray nozzle with the center on the downside of panel junction（113）, the fingerprint
Acquire slot（11）Notch is equipped with fog-spray nozzle with the center on the upside of panel junction（114）, the fingerprint collecting slot（11）Slot
Center of the mouth respectively with panel junction both sides is equipped with side spray head（115）.
2. a kind of fingerprint according to claim 1 precisely distinguishes punched-card machine, it is characterised in that：The lower fog-spray nozzle（113）、
The upper fog-spray nozzle（114）With the side spray head（115）Jet width along notch side is 10mm ~ 15mm.
3. a kind of fingerprint according to claim 2 precisely distinguishes punched-card machine, it is characterised in that：The lower fog-spray nozzle（113）
Injection direction is parallel with panel direction, the upper fog-spray nozzle（114）Injection direction is from panel in downward direction to the fingerprint collecting
Slot（11）Tilted 30 ° of slot, the side spray head（115）Injection direction is from panel horizontal direction to the fingerprint collecting slot（11）
Tilted 30 ° of slot.
4. a kind of fingerprint according to claim 3 precisely distinguishes punched-card machine, it is characterised in that：The upper fog-spray nozzle（114）
The fog sprayed downwards reaches the fingerprint collecting face（111）After the optical fingerprint collecting module is completely covered（1111）Model
It encloses.
5. a kind of fingerprint according to claim 1 precisely distinguishes punched-card machine, it is characterised in that：The fingerprint collecting slot（11）
Top is equipped with blow head in slot（116）, the blow head（116）Blowing direction vertically downward, and is right against the optics and refers to
Line acquisition module（1111）The top half on inclined-plane.
6. a kind of fingerprint according to claim 1 precisely distinguishes punched-card machine, it is characterised in that：The photoelectric sensor
（1121）With the optical fingerprint collecting module（1111）The vertical range of the top is not more than 20mm.
7. a kind of fingerprint according to claim 1 precisely distinguishes punched-card machine, it is characterised in that：The spray water holds pond
（12）One side bottom is connected with conduit（121）, the conduit（121）The lower fog-spray nozzle is respectively connected to after fork（113）, it is described
Upper fog-spray nozzle（114）With the side spray head（115）.
8. a kind of fingerprint according to claim 7 precisely distinguishes punched-card machine, it is characterised in that：The spray water holds pond
（12）Water inlet is equipped at the panel of the other side（122）, the water inlet（122）Pond is held with the spray water（12）Inner cavity connects
It is logical, and the water inlet（122）Height holds pond higher than the spray water（12）Vessel highest point.
9. a kind of fingerprint according to claim 1 precisely distinguishes punched-card machine, it is characterised in that：The spray water holds pond
（12）Vessel bottom is installed by having heaters（123）, the heater（123）Spray water is heated to 40 ~ 45 DEG C.
10. a kind of fingerprint according to claim 9 precisely distinguishes punched-card machine, it is characterised in that：The spray water holds pond
（12）Internal spraying water is thimerosal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810200252.7A CN108460853A (en) | 2018-03-12 | 2018-03-12 | A kind of fingerprint precisely distinguishes punched-card machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810200252.7A CN108460853A (en) | 2018-03-12 | 2018-03-12 | A kind of fingerprint precisely distinguishes punched-card machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108460853A true CN108460853A (en) | 2018-08-28 |
Family
ID=63217319
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810200252.7A Pending CN108460853A (en) | 2018-03-12 | 2018-03-12 | A kind of fingerprint precisely distinguishes punched-card machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108460853A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111986343A (en) * | 2020-09-10 | 2020-11-24 | 涡阳量子信息科技有限公司 | Punched-card machine for scientific and technological consulting enterprise |
| CN112037352A (en) * | 2020-08-17 | 2020-12-04 | 江细方 | Fingerprint punched-card machine for staff attendance with function of improving fingerprint identification degree |
| CN112101307A (en) * | 2020-11-12 | 2020-12-18 | 南京工业职业技术大学 | High-efficient identity recognition device |
| CN112257675A (en) * | 2020-11-18 | 2021-01-22 | 深圳市坶坭普电子科技有限公司 | Non-contact fingerprint acquisition device of rotatory shooting |
| CN112927381A (en) * | 2021-02-02 | 2021-06-08 | 中国科学院东北地理与农业生态研究所 | Fingerprint punched-card machine with prevent new crown cross infection function |
| CN113838241A (en) * | 2021-09-02 | 2021-12-24 | 合肥优恩物联网科技有限公司 | Palm muscle and vein recognition access control device based on intelligent community |
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| CN204576544U (en) * | 2015-04-30 | 2015-08-19 | 葛新 | Fingerprint machine |
| GB2534363A (en) * | 2015-01-16 | 2016-07-27 | Scan Unic Aps | Apparatus, method, system and software product for hand sanitisation |
| CN107358672A (en) * | 2017-07-19 | 2017-11-17 | 莫莹莹 | Attendance recorder fingerprint capturer servicing unit |
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| CN104464008A (en) * | 2014-12-23 | 2015-03-25 | 北海激活商贸有限责任公司 | Fingerprint attendance machine capable of quickly identifying fingerprint information |
| GB2534363A (en) * | 2015-01-16 | 2016-07-27 | Scan Unic Aps | Apparatus, method, system and software product for hand sanitisation |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112037352A (en) * | 2020-08-17 | 2020-12-04 | 江细方 | Fingerprint punched-card machine for staff attendance with function of improving fingerprint identification degree |
| CN111986343A (en) * | 2020-09-10 | 2020-11-24 | 涡阳量子信息科技有限公司 | Punched-card machine for scientific and technological consulting enterprise |
| CN112101307A (en) * | 2020-11-12 | 2020-12-18 | 南京工业职业技术大学 | High-efficient identity recognition device |
| CN112101307B (en) * | 2020-11-12 | 2021-02-02 | 南京工业职业技术大学 | High-efficient identity recognition device |
| CN112257675A (en) * | 2020-11-18 | 2021-01-22 | 深圳市坶坭普电子科技有限公司 | Non-contact fingerprint acquisition device of rotatory shooting |
| CN112927381A (en) * | 2021-02-02 | 2021-06-08 | 中国科学院东北地理与农业生态研究所 | Fingerprint punched-card machine with prevent new crown cross infection function |
| CN113838241A (en) * | 2021-09-02 | 2021-12-24 | 合肥优恩物联网科技有限公司 | Palm muscle and vein recognition access control device based on intelligent community |
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Application publication date: 20180828 |