WO2022095084A1 - 一种用于门禁系统的指纹识别装置 - Google Patents

一种用于门禁系统的指纹识别装置 Download PDF

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Publication number
WO2022095084A1
WO2022095084A1 PCT/CN2020/127925 CN2020127925W WO2022095084A1 WO 2022095084 A1 WO2022095084 A1 WO 2022095084A1 CN 2020127925 W CN2020127925 W CN 2020127925W WO 2022095084 A1 WO2022095084 A1 WO 2022095084A1
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fingerprint
fingerprint identification
plate
control system
access control
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PCT/CN2020/127925
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English (en)
French (fr)
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张陆清
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苏州肯谱瑞力信息科技有限公司
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Publication of WO2022095084A1 publication Critical patent/WO2022095084A1/zh

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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

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  • the invention relates to the technical field of fingerprint identification applications, in particular to a fingerprint identification device for an access control system.
  • Fingerprints are the lines formed by the concave and convex skin at the end of human fingers. Fingerprints have been formed before human beings are born and the shape of fingerprints will not change as individuals grow, but changes to a significant degree, and everyone's fingerprints are different. of. Fingerprint recognition is to classify and compare the fingerprints of the identified objects to determine. As one of the biometric identification technologies, fingerprint recognition technology has gradually matured in the new century and entered the field of human production and life. In the access control system, fingerprint recognition technology is often used for identity verification, which has the advantages of high recognition efficiency and high recognition accuracy.
  • the existing fingerprint identification device still has certain defects in use.
  • the collection end seat on the existing fingerprint identification device is prone to dust, and when it is not used for a long time, the dust will cover and corrode the collection end seat. This will affect the accuracy of fingerprint collection.
  • some fingerprint recognition devices cannot limit the finger position during fingerprint collection. If the finger placement position is deviated, it may lead to the problem that the fingerprint cannot be recognized. Therefore, it is necessary for us to provide a fingerprint identification device for an access control system in view of the deficiencies of the prior art.
  • the present invention aims to provide a fingerprint identification device for an access control system, which has high identification accuracy and is easy to carry.
  • a fingerprint identification device for an access control system of the present invention includes a fingerprint identification terminal and a fingerprint collection mechanism, and the fingerprint identification terminal includes a fingerprint identification machine for processing fingerprint information and a fingerprint identification machine. mounting plate.
  • the fingerprint collection mechanism is fixed on the installation plate by bolts, and the fingerprint collection mechanism includes a fixed plate, a laser scanning seat and a collection end seat, wherein the fixed plate is connected with the installation plate by bolts, and the lower middle of the outer wall of the installation plate is welded by ultrasonic technology.
  • the connecting plate has an "L"-shaped structure.
  • the horizontal part of the connecting plate is provided with a laser scanning seat.
  • the top of the laser scanning seat is provided with a collecting end seat.
  • a card seat is arranged on the upper part, and the lower end face of the card seat is adapted to the specifications of the upper end face of the laser scanning seat and has a corresponding position.
  • buttons for controlling the working state of the fingerprint identification machine are arranged on the side wall of the fingerprint identification machine, and a display screen for displaying the working state of the fingerprint identification machine is arranged on the fingerprint identification machine above the keys.
  • connecting rods are vertically arranged at the left and right ends of the bottom of the cover plate
  • elastic buckles are arranged at the bottom end of the connecting rods
  • sliding grooves corresponding to the buckles are arranged at the left and right ends of the vertical part of the connecting plate, and the connecting rods extend into the sliding inside the slot, and the side wall of the chute is also provided with a clamping hole for engaging the buckle.
  • a telescopic rod is arranged parallel to one side of the connecting rod, the left and right ends of the vertical part of the connecting plate are provided with limit grooves corresponding to the position of the telescopic rod, the top of the telescopic rod is fixedly connected to the cover plate, and the bottom extends into the limit groove and is connected to the spring
  • the bracket, the spring bracket is vertically connected in the limit slot.
  • the fixing plate has a rectangular structure, and four corners of the fixing plate are provided with screw holes, and the fixing plate is fixed on the side wall of the mounting plate by bolts passing through the screw holes.
  • the upper end surface of the collecting end seat is concavely provided with a finger groove adapted to the shape of the finger.
  • the card holder and the card slot at the bottom of the cover plate can be used to clamp the collection end base, and the card slot will clamp the top of the collection end base to prevent the collection window on the collection end base from being exposed. , which can effectively protect the collection window from dust, effectively prolong the service life of the collection window, and improve the accuracy of collection.
  • the finger groove can be used to limit the position of the finger that needs to collect fingerprints, so as to ensure that the fingerprint of the finger is facing the collection window and improve the accuracy of fingerprint collection.
  • FIG. 1 is a schematic diagram of a split structure of a preferred embodiment of a fingerprint identification device for an access control system proposed by the present invention.
  • FIG. 2 is a schematic structural diagram of a fingerprint collection mechanism of the fingerprint identification device in FIG. 1 .
  • Fingerprint identification terminal 11. Fingerprint identification machine; 12. Mounting plate; 2. Fingerprint collection mechanism; 21. Fixed plate; seat; 24, connecting plate; 25, cover plate; 26, card seat; 27, card slot; 28, connecting rod; 29, buckle; 210, chute; 211, card hole; 212, limit rod; 213, Limit slot; 214, spring bracket; 215, finger slot; 216, screw hole.
  • a fingerprint identification device for an access control system includes a fingerprint identification terminal 1 and a fingerprint collection mechanism 2.
  • the fingerprint identification terminal 1 includes a fingerprint identification machine 11 for processing fingerprint information and a fingerprint identification machine 11.
  • the fingerprint identification machine 11 of the fingerprint identification terminal 1 compares the fingerprint information with the registered fingerprint information. The fingerprints are compared, if they match, they pass the verification, and if they don't match, they fail the verification.
  • the fingerprint collecting mechanism 2 is fixed on the mounting plate 12 by bolts, and the fingerprint collecting mechanism 2 includes a fixing plate 21 , a laser scanning seat 22 and a collecting end seat 23 , wherein the fixing plate 21 is connected with the mounting plate 12 by bolts,
  • the connecting plate 24 is welded by ultrasonic technology at the lower middle position of the outer wall of the mounting plate 12.
  • the connecting plate 24 is in an "L" shape.
  • the horizontal part of the connecting plate 24 is provided with a laser scanning seat 22, and the top of the laser scanning seat 22 is provided with a collection end seat 23 , a cover plate 25 which is movably connected to the connecting plate 24 is arranged above the connecting plate 24, and a card seat 26 is arranged on the lower end surface of the cover plate 25.
  • the bottom of the card holder 26 is concavely provided with a card slot 27 which is adapted to the specification of the collecting end base 23;
  • the inside of the laser scanning base 22 is provided with a light source, the collecting end base 23 is provided with an optical lens, and the finger is placed on the optical lens, Under the illumination of the built-in light source, the finger is projected on the charge-coupled device with a prism to form a digital multi-gray fingerprint image with black ridges and white valleys, which can be processed by the algorithm of the fingerprint device, and then transmit the information.
  • the side wall of the fingerprint identification machine 11 is provided with several buttons for controlling the working state of the fingerprint identification machine 11, and the fingerprint identification machine 11 above the keys is provided with a button for displaying the working state of the fingerprint identification machine 11. display.
  • the fingerprint identification machine 11 can be controlled by keys, and the working status of the fingerprint identification machine 11 can be displayed on the display screen of the fingerprint identification machine 11, so that the user can check whether the identity authentication is successful.
  • the left and right ends of the bottom of the cover plate 25 are provided with connecting rods 28 vertically, the bottom ends of the connecting rods 28 are provided with elastic buckles 29, and the left and right ends of the vertical part of the connecting plate 24 are provided with buckles.
  • 29 corresponds to the chute 210 , the connecting rod 28 extends into the chute 210 , and the side wall of the chute 210 also penetrates through a locking hole 211 for engaging the buckle 29 .
  • the cover plate 25 can be moved downward, and the cover plate 25 pushes the connecting rod 28 to move vertically downward along the chute 210 .
  • the elastically deformed buckle 29 moves into the card hole 211 under the action of the restoring force and engages the card hole 211.
  • the card slot 27 on the card seat 26 is engaged with the collecting end seat. 23 to protect the collection window on the collection end base 23 .
  • one side of the connecting rod 28 is provided with a telescopic rod in parallel, the left and right ends of the vertical part of the connecting plate 24 are provided with limit grooves 213 corresponding to the position of the telescopic rod, and the top of the telescopic rod is fixedly connected to the cover plates 25, The bottom extends into the limiting slot 213 and is connected to the spring bracket 214 , and the spring bracket 214 is vertically connected in the limiting slot 213 .
  • the limit slot 213 can be used to engage the telescopic rod, so as to ensure that the telescopic rod can remain stable when moving up and down. Under the action, the telescopic rod and the cover plate 25 can be pushed to move up a certain distance to help the cover plate 25 to restore the original position, so as to ensure that the cover plate 25 will not affect the collection of fingerprints.
  • the fixing plate 21 has a rectangular structure, and four corners of the fixing plate 21 are provided with screw holes 216 , and the fixing plate 21 is fixed on the side wall of the mounting plate 12 by bolts passing through the screw holes 216 .
  • the fixing plate 21 can be firmly and stably fixed on the mounting plate 12 by means of bolts.
  • the upper end surface of the collecting end seat 23 is concavely provided with a finger groove 215 which is adapted to the shape of the finger.
  • the finger groove 215 can be used to limit the position of the finger that needs to collect fingerprints, so as to ensure that the fingerprint of the finger is facing the collection window and improve the accuracy of fingerprint collection.

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Abstract

一种用于门禁系统的指纹识别装置，涉及指纹识别应用技术领域，包括指纹识别终端(1)和指纹采集机构(2)，指纹识别终端(1)包括用于处理指纹信息的指纹识别机(11)和设置在指纹识别机(11)一侧的安装板(12)，通过设置可以上下活动的盖板(25)，从而可以利用盖板(25)底部的卡座(26)和卡槽(27)来卡合采集端座(23)，卡槽(27)将采集端座(23)顶部卡合，防止采集端座(23)上的采集窗口裸露在外，可以有效保护采集窗口不落附灰尘，有效延长采集窗口的使用寿命，同时提高采集的精确性；通过在采集端座(23)上设置与手指规格相适配的指槽(215)，从而可以利用指槽(215)对需要采集指纹的手指进行限位，保证手指的指纹正对采集窗口，提高指纹采集的精确性。

Description

一种用于门禁系统的指纹识别装置 技术领域
本发明涉及用于指纹识别应用技术领域，尤其涉及到一种用于门禁系统的指纹识别装置。
背景技术
指纹是人类手指末端由凹凸的皮肤所形成的纹路，在人类出生之前指纹就已经形成并且随着个体的成长指纹的形状不会发生改变，只是明显程度的变化，而且每个人的指纹都是不同的。指纹识别是将识别对象的指纹进行分类比对从而进行判别。指纹识别技术作为生物体特征识别技术之一在新世纪逐渐成熟，进入了人类的生产生活领域。门禁系统中常常利用指纹识别技术进行身份验证，具有识别效率块，识别精度高的优点。
但是现有的指纹识别装置在使用的时候仍然存在一定的缺陷，现有的指纹识别装置上的采集端座易落附灰尘，在长时间不使用的时候，灰尘会覆盖并腐蚀采集端座上的采集窗口，影响指纹采集的精确性，同时在指纹采集时，部分指纹识别装置不能够对手指进行限位，如果手指放置位置偏差，可能会导致指纹识别不了的问题。因此我们有必要针对现有技术的不足而提供一种用于门禁系统的指纹识别装置。
发明内容
为解决现有技术存在的问题，本发明旨在提供一种用于门禁系统的指纹识别装置，其识别精确性高、方便携带。
为实现上述目的，本发明的一种用于门禁系统的指纹识别装置，包括指纹识别终端和指纹采集机构，指纹识别终端包括用于处理指纹信息的指纹识别机和设置在指纹识别机一侧的安装板。
指纹采集机构通过螺栓固定在安装板上，指纹采集机构包括固定板、激光扫描座和采集端座，其中固定板通过螺栓与安装板连接，安装板外壁中间靠下位置通过超声波工艺焊接连接板，连接板呈“L”形结构，连接板的水平部位上设置激光扫描座，激光扫描座的顶部设置采集端座，连接板的上方设置与连接板呈活动连接的盖板，盖板的下端面上设置卡座，卡座下端面与激光扫描座上端面的规格相适配、位置相对应，卡座的底部凹设与采集端座规格相适配的卡槽。
优选的，指纹识别机的侧壁设置用于控制指纹识别机工作状态的若干按键，按键上方的指纹识别机上设置用于显示指纹识别机工作状态的显示屏。
优选的，盖板底部的左右两端均垂直设置连杆，连杆的底端设置弹性卡扣，连接板垂直部位的左右两端设置与卡扣相对应的滑槽，连杆伸入到滑槽内，且滑槽的侧壁上还贯穿设置用于卡合卡扣的卡孔。
优选的，连杆一侧平行设置伸缩杆，连接板垂直部位的左右两端设置与伸缩杆位置对应的限位槽，伸缩杆顶部固定连接盖板、底部伸入到限位槽内并连接弹簧支架，弹簧支架垂直连接在限位槽内。
优选的，固定板呈矩形结构，且固定板四角位置均贯穿设置螺孔，固定板通过螺栓穿过螺孔固定在安装板的侧壁上。
优选的，采集端座的上端面凹设有与手指形状相适配的指槽。
本发明的一种用于门禁系统的指纹识别装置具有以下有益效果：
1、通过设置可以上下活动的盖板，从而可以利用盖板底部的卡座和卡槽来卡合采集端座，卡槽将采集端座顶部卡合，防止采集端座上的采集窗口裸露在外，可以有效保护采集窗口不落附灰尘，有效延长采集窗口的使用寿命，同时提高采集的精确性。
2、通过在采集端座上设置与手指规格相适配的指槽，从而可以利用指槽对需要采集指纹的手指进行限位，保证手指的指纹正对采集窗口，提高指纹采集的精确性。
附图说明
图1是本发明提出的一种用于门禁系统的指纹识别装置的首选实施例拆分结构示意图。
图2是图1中指纹识别装置的指纹采集机构结构示意图。
图中数字和字母所表示的相应部件名称：1、指纹识别终端；11、指纹识别机；12、安装板；2、指纹采集机构；21、固定板；22、激光扫描座；23、采集端座；24、连接板；25、盖板；26、卡座；27、卡槽；28、连杆；29、卡扣；210、滑槽；211、卡孔；212、限位杆；213、限位槽；214、弹簧支架；215、指槽；216、螺孔。
具体实施方式
为了使本发明实现的技术手段、创作特征、达成目的与功效易于明白了解，下面结合图示与具体实施例，进一步阐述本发明。
实施例
如图1所示，一种用于门禁系统的指纹识别装置包括指纹识别终端1和指纹采集机构2，指纹识别终端1包括用于处理指纹信息的指纹识别机11和设置在指纹识别机11一侧的安装板12，其中指纹采集机构2通过光学传感器采集人的手指指纹信息，并将指纹信息 通过数据线传递给指纹识别终端1，指纹识别终端1的指纹识别机11对指纹信息与已经注册的指纹进行比较，如果匹配，便通过了验证，如果不匹配，便通不过验证。
如图2所示，指纹采集机构2通过螺栓固定在安装板12上，指纹采集机构2包括固定板21、激光扫描座22和采集端座23，其中固定板21通过螺栓与安装板12连接，安装板12外壁中间靠下位置通过超声波工艺焊接连接板24，连接板24呈“L”形结构，连接板24的水平部位上设置激光扫描座22，激光扫描座22的顶部设置采集端座23，连接板24的上方设置与连接板24呈活动连接的盖板25，盖板25的下端面上设置卡座26，卡座26下端面与激光扫描座22上端面的规格相适配、位置相对应，卡座26的底部凹设与采集端座23规格相适配的卡槽27；激光扫描座22的内部设置光源，采集端座23上设置光学镜片，将手指放在光学镜片上,手指在内置光源照射下,用棱镜将其投射在电荷耦合器件上,进而形成脊线呈黑色、谷线呈白色的数字化的、可被指纹设备算法处理的多灰度指纹图像，然后将信息传递给指纹识别终端1进行比较；在不使用该装置的时候，利用盖板25底部的卡座26和卡槽27来卡合采集端座23，卡槽27将采集端座23顶部卡合，防止采集端座23上的采集窗口裸露在外，可以有效保护采集窗口不落附灰尘，有效延长采集窗口的使用寿命，同时提高采集的精确性。
作为本发明的一种技术优化方案，指纹识别机11的侧壁设置用于控制指纹识别机11工作状态的若干按键，按键上方的指纹识别机11上设置用于显示指纹识别机11工作状态的显示屏。
通过采用上述技术方案，从而可以利用按键控制指纹识别机11，并通过指纹识别机11上的显示屏显示指纹识别机11的工作状态，方便使用者查看自己身份认证是否成功。
作为本发明的一种技术优化方案，盖板25底部的左右两端均垂直设置连杆28，连杆28的底端设置弹性卡扣29，连接板24垂直部位的左右两端设置与卡扣29相对应的滑槽210，连杆28伸入到滑槽210内，且滑槽210的侧壁上还贯穿设置用于卡合卡扣29的卡孔211。
通过采用上述技术方案，从而在不使用指纹识别装置的时候，可以向下移动盖板25，盖板25推动连杆28沿着滑槽210垂直向下移动，在连杆28上的卡扣29移动至卡孔211位置时，发现弹性形变的卡扣29在恢复力的作用下向卡孔211内移动并卡合卡孔211，此时卡座26上的卡槽27卡合在采集端座23顶部，保护采集端座23上的采集窗口。
作为本发明的一种技术优化方案，连杆28一侧平行设置伸缩杆，连接板24垂直部位的左右两端设置与伸缩杆位置对应的限位槽213，伸缩杆顶部固定连接盖板25、底部伸入 到限位槽213内并连接弹簧支架214，弹簧支架214垂直连接在限位槽213内。
通过采用上述技术方案，从而可以利用限位槽213卡合伸缩杆，保证伸缩杆在上下移动的时候能够保持稳定，同时在松开卡扣29的时候，被压缩的弹簧支架214在恢复力的作用下能够推动伸缩杆和盖板25向上移动一定的距离帮助盖板25恢复原来的位置，保证盖板25不会影响手指指纹的采集。
作为本发明的一种技术优化方案，固定板21呈矩形结构，且固定板21四角位置均贯穿设置螺孔216，固定板21通过螺栓穿过螺孔216固定在安装板12的侧壁上。
通过采用上述技术方案，从而可以利用螺栓将固定板21牢固稳定的固定在安装板12上。
作为本发明的一种技术优化方案，采集端座23的上端面凹设有与手指形状相适配的指槽215。
通过采用上述技术方案，从而可以利用指槽215对需要采集指纹的手指进行限位，保证手指的指纹正对采集窗口，提高指纹采集的精确性。
以上显示和描述了本发明的基本原理、主要特征和本发明的优点。本行业的技术人员应该了解，本发明不受上述实施例的限制，上述实施例和说明书中描述的只是说明本发明的原理，在不脱离本发明精神和范围的前提下本发明还会有各种变化和改进，这些变化和改进都落入要求保护的本发明范围内。本发明要求保护范围由所附的权利要求书及其等同物界定。

Claims (6)

  1. 一种用于门禁系统的指纹识别装置，其特征在于：包括指纹识别终端和指纹采集机构，所述指纹识别终端包括用于处理指纹信息的指纹识别机和设置在指纹识别机一侧的安装板；所述指纹采集机构通过螺栓固定在安装板上，所述指纹采集机构包括固定板、激光扫描座和采集端座，其中所述固定板通过螺栓与安装板连接，所述安装板外壁中间靠下位置通过超声波工艺焊接连接板，所述连接板呈“L”形结构，所述连接板的水平部位上设置激光扫描座，所述激光扫描座的顶部设置采集端座，所述连接板的上方设置与连接板呈活动连接的盖板，所述盖板的下端面上设置卡座，所述卡座下端面与激光扫描座上端面的规格相适配、位置相对应，所述卡座的底部凹设与采集端座规格相适配的卡槽。
  2. 根据权利要求1所述的一种用于门禁系统的指纹识别装置，其特征在于：所述指纹识别机的侧壁设置用于控制指纹识别机工作状态的若干按键，所述按键上方的指纹识别机上设置用于显示指纹识别机工作状态的显示屏。
  3. 根据权利要求1所述的一种用于门禁系统的指纹识别装置，其特征在于：所述盖板底部的左右两端均垂直设置连杆，所述连杆的底端设置弹性卡扣，所述连接板垂直部位的左右两端设置与卡扣相对应的滑槽，所述连杆伸入到所述滑槽内，且所述滑槽的侧壁上还贯穿设置用于卡合卡扣的卡孔。
  4. 根据权利要求3所述的一种用于门禁系统的指纹识别装置，其特征在于：所述连杆一侧平行设置伸缩杆，所述连接板垂直部位的左右两端设置与伸缩杆位置对应的限位槽，所述伸缩杆顶部固定连接盖板、底部伸入到限位槽内并连接弹簧支架，所述弹簧支架垂直连接在限位槽内。
  5. 根据权利要求1所述的一种用于门禁系统的指纹识别装置，其特征在于：所述固定板呈矩形结构，且所述固定板四角位置均贯穿设置螺孔，所述固定板通过螺栓穿过螺孔固定在安装板的侧壁上。
  6. 根据权利要求1所述的一种用于门禁系统的指纹识别装置，其特征在于：所述采集端座的上端面凹设有与手指形状相适配的指槽。
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