WO2017152579A1 - Code-scanning structure and method for camera module - Google Patents

Code-scanning structure and method for camera module Download PDF

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Publication number
WO2017152579A1
WO2017152579A1 PCT/CN2016/094839 CN2016094839W WO2017152579A1 WO 2017152579 A1 WO2017152579 A1 WO 2017152579A1 CN 2016094839 W CN2016094839 W CN 2016094839W WO 2017152579 A1 WO2017152579 A1 WO 2017152579A1
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Prior art keywords
camera
module
code
plane mirror
scanning
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PCT/CN2016/094839
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French (fr)
Chinese (zh)
Inventor
柯婷
吴卫东
蒋声障
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福建联迪商用设备有限公司
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Publication of WO2017152579A1 publication Critical patent/WO2017152579A1/en

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    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
    • G06K7/00—Methods or arrangements for sensing record carriers, e.g. for reading patterns
    • G06K7/10—Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation
    • G06K7/14—Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation using light without selection of wavelength, e.g. sensing reflected white light
    • G06K7/1404—Methods for optical code recognition
    • G06K7/1408—Methods for optical code recognition the method being specifically adapted for the type of code
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
    • G06K7/00—Methods or arrangements for sensing record carriers, e.g. for reading patterns
    • G06K7/10—Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation
    • G06K7/14—Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation using light without selection of wavelength, e.g. sensing reflected white light
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
    • H04N23/50—Constructional details
    • H04N23/55—Optical parts specially adapted for electronic image sensors; Mounting thereof
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
    • H04N23/56—Cameras or camera modules comprising electronic image sensors; Control thereof provided with illuminating means

Definitions

  • the invention relates to a camera module scanning code structure and a method thereof.
  • the scanning code camera captures the barcode image frame sequence
  • it is limited by the depth of field.
  • the distance between the barcode image and the scanning code camera needs to be controlled between 50mm and 200mm.
  • the barcode and the camera are between 30mm and 50mm, the camera will be due to the angle of view.
  • the relationship caused the close-up bar code to be incomplete and could not be used for decoding. Therefore, the traditional camera scanning method can not meet the near-field experience.
  • smart terminals such as POS, cash registers, PDAs, and inboxes are using the camera located in front of them to perform scanning code payment. Users are placing barcodes in front of the camera in front of the smart terminal to scan the code. This method will The scan code is handed over to the user (payer), making it easier for the merchant (payee) to operate. However, the action of placing the bar code directly in front of the payment device is not convenient for the user.
  • the present invention is directed to the improvement of the above problems in the prior art, that is, the technical problem to be solved by the present invention is to provide a camera module scan code structure and a method thereof, and realize deduction of depth of field from inside the module, so that the user scans the code as long as Close to the scan code area.
  • a technical solution of the present invention is: a camera module scan code structure, the structure is installed in the smart terminal, including a scan code area and a scan code module, and the scan code area is set in the smart The front side of the terminal and the front surface of the terminal are kept at the same level.
  • the scan code module is disposed inside the smart terminal, and includes a camera module and a data decoding module.
  • the camera module includes a camera, a plane mirror and an LED fill light. Directly below the scanning code area, the light enters the camera from the scanning code area and is reflected by the plane mirror. The LED fill light is located between the camera and the plane mirror.
  • the scanning area is a piece of transparent glass.
  • the angle between the plane mirror and the camera is 45°.
  • the camera is a CMOS camera.
  • a camera module scanning method which is performed by installing a scan code area on the front surface of the smart terminal, and the scan code area is kept the same as the front side. a water level plane; and a scan code module disposed inside the smart terminal, the scan code module includes a camera module and a data decoding module, the camera module includes a camera, a plane mirror and an LED fill light, the plane mirror is located directly below the scan code area To make light from The scan code area enters the camera after being reflected by the plane mirror, and the LED fill light is located between the camera and the plane mirror; then the barcode is placed close to the scan code area, and the virtual image formed by the barcode through the plane mirror falls on the imaging area of the camera, and the data decoding module Complete the interpretation of the barcode.
  • the scanning area is a piece of transparent glass.
  • the angle between the plane mirror and the camera is 45°.
  • the camera is a CMOS camera.
  • the present invention Compared with the prior art, the present invention has the following beneficial effects: Firstly, the present invention effectively forms a camera module by adding a set of fill light and a plane mirror at an angle of 45° to the camera, thereby effectively shortening the barcode.
  • the distance between the image and the intelligent terminal realizes the purpose of deducting the depth of field and achieving the near-field experience.
  • the setting of the plane mirror changes the scanning direction, and the original position is placed at a distance from the front of the intelligent terminal to become close to the surface of the intelligent terminal. It is convenient for users to operate.
  • the setting of the fill light solves the problem of insufficient light in the embedded camera.
  • FIG. 1 is a schematic structural view of an embodiment of the present invention.
  • FIG. 2 is a schematic diagram of an embodiment of the present invention.
  • Embodiment 1 As shown in FIG. 1 to FIG. 2, a camera module scan code structure is installed in the smart terminal 1 and includes a scan code area 2 and a scan code module, and the scan code area 2 is set in the smart The front end of the terminal 1 is maintained at the same level as the front surface.
  • the scan code module is disposed inside the smart terminal, and includes a camera module and a data decoding module.
  • the camera module includes a camera 3, a plane mirror 4, and an LED fill light 5.
  • the plane mirror 4 is located directly below the scanning code area 2, so that the light enters the scanning head 3 from the scanning code area 2 and enters the camera 3, and the LED fill light 5 is located between the camera and the plane mirror.
  • the scan code area 2 is a piece of transparent glass.
  • the angle between the plane mirror 4 and the camera 3 is 45°.
  • the camera 3 is a CMOS camera.
  • the bar code is placed close to the scan code area, and the virtual image formed by the bar code 6 through the plane mirror falls on the imaging area of the camera, and the data decoding module completes the interpretation of the bar code.
  • a CMOS camera having an angle of view of 62 is employed.
  • the virtual image formed by the bar code through the plane mirror is in front of the camera.
  • the camera can completely scan the barcode. Due to this
  • the scanning code set by the embodiment of the invention is close to the type, so when the person picks up the mobile phone or the barcode paper and even closes to the scanning code area, the barcode is nearly parallel to the scanning code area, and the angle between the two does not exceed 15°, and the barcode is
  • the virtual image can be completely in the imaging area of the camera. Therefore, the camera module of the embodiment of the invention can capture the barcode image well.
  • the minimum linear distance between the barcode and the smart terminal can be made close to zero.

Abstract

The invention relates to a code-scanning structure and a method for a camera module. The structure is installed in an intelligent terminal, and is characterized in comprising a code-scanning region and a code-scanning module, wherein the code-scanning region is disposed on the front surface of the intelligent terminal, and is located in the same horizontal plane as the front surface; the code-scanning module is disposed in the intelligent terminal, and comprises a camera module and a data decoding module; the camera module comprises a camera, a plane mirror and an LED light supplement lamp; the plane mirror is located exactly below the code-scanning region, so as to enable light to enter the plane mirror from the code-scanning region and then enter the camera after being reflected; and the LED light supplement lamp is located between the camera and the plane mirror. The apparatus achieves the deduction of a field depth from the interior of a module, and enables a user to scan a code by means of getting close to a code-scanning region.

Description

一种摄像头模组扫码结构及其方法Camera module scan code structure and method thereof 技术领域Technical field
本发明涉及一种摄像头模组扫码结构及其方法。The invention relates to a camera module scanning code structure and a method thereof.
背景技术Background technique
目前，扫码摄像头采集条码图像帧序列时，受景深限制，条码图像与扫码摄像头距离需控制在50mm到200mm之间，当条码与摄像头距离在30mm到50mm之间，摄像头将因为视场角的关系，导致近景的条码拍摄不全，无法用于解码。因此，传统的摄像头扫码方式无法满足近场体验需求。At present, when the scanning code camera captures the barcode image frame sequence, it is limited by the depth of field. The distance between the barcode image and the scanning code camera needs to be controlled between 50mm and 200mm. When the barcode and the camera are between 30mm and 50mm, the camera will be due to the angle of view. The relationship caused the close-up bar code to be incomplete and could not be used for decoding. Therefore, the traditional camera scanning method can not meet the near-field experience.
现在，POS、收银机、PDA以及收件宝等智能终端利用位于正前方的摄像头进行扫码支付的方式正在兴起，用户将条码置于智能终端正前方摄像头前进行扫码支付，这种方式将扫码动作交给了用户(付款方)，使得商户(收款方)操作更加便捷，然而，条码置于收款设备正前方这一动作对于用户而言不具备便利性。Now, smart terminals such as POS, cash registers, PDAs, and inboxes are using the camera located in front of them to perform scanning code payment. Users are placing barcodes in front of the camera in front of the smart terminal to scan the code. This method will The scan code is handed over to the user (payer), making it easier for the merchant (payee) to operate. However, the action of placing the bar code directly in front of the payment device is not convenient for the user.
发明内容Summary of the invention
本发明针对上述现有技术存在的问题做出改进，即本发明所要解决的技术问题是提供一种摄像头模组扫码结构及其方法，从模组内部实现景深的扣除，使得用户扫码只要贴近扫码区即可。The present invention is directed to the improvement of the above problems in the prior art, that is, the technical problem to be solved by the present invention is to provide a camera module scan code structure and a method thereof, and realize deduction of depth of field from inside the module, so that the user scans the code as long as Close to the scan code area.
为了解决上述技术问题，本发明的一种技术方案是：一种摄像头模组扫码结构，该结构安装在智能终端内，包括扫码区和扫码模组，所述扫码区设置在智能终端正面并与该正面保持同一水平面，所述扫码模组设置在智能终端内部，包括摄像头模组和数据解码模块，所述摄像头模组包括摄像头、平面镜和LED补光灯，所述平面镜位于扫码区正下方，以使光线从扫码区进入经平面镜反射后进入摄像头，所述LED补光灯位于摄像头和平面镜之间。In order to solve the above technical problem, a technical solution of the present invention is: a camera module scan code structure, the structure is installed in the smart terminal, including a scan code area and a scan code module, and the scan code area is set in the smart The front side of the terminal and the front surface of the terminal are kept at the same level. The scan code module is disposed inside the smart terminal, and includes a camera module and a data decoding module. The camera module includes a camera, a plane mirror and an LED fill light. Directly below the scanning code area, the light enters the camera from the scanning code area and is reflected by the plane mirror. The LED fill light is located between the camera and the plane mirror.
进一步的，所述扫码区为一片透明玻璃。Further, the scanning area is a piece of transparent glass.
进一步的，所述平面镜与摄像头的夹角为45°。Further, the angle between the plane mirror and the camera is 45°.
进一步的，所述摄像头为一个CMOS摄像头。Further, the camera is a CMOS camera.
为了解决上述技术问题，本发明的另一种技术方案是：一种摄像头模组扫码方法，按以下步骤进行：在智能终端正面安装一扫码区，该扫码区并与该正面保持同一水平面；并在智能终端内部设置扫码模组，该扫码模组包括摄像头模组和数据解码模块，该摄像头模组包括摄像头、平面镜和LED补光灯，所述平面镜位于扫码区正下方，以使光线从 扫码区进入经平面镜反射后进入摄像头，所述LED补光灯位于摄像头和平面镜中之间；然后将条码贴近扫码区，条码通过平面镜所成的虚像落在摄像头的成像区，数据解码模块完成对条码的解读。In order to solve the above technical problem, another technical solution of the present invention is: a camera module scanning method, which is performed by installing a scan code area on the front surface of the smart terminal, and the scan code area is kept the same as the front side. a water level plane; and a scan code module disposed inside the smart terminal, the scan code module includes a camera module and a data decoding module, the camera module includes a camera, a plane mirror and an LED fill light, the plane mirror is located directly below the scan code area To make light from The scan code area enters the camera after being reflected by the plane mirror, and the LED fill light is located between the camera and the plane mirror; then the barcode is placed close to the scan code area, and the virtual image formed by the barcode through the plane mirror falls on the imaging area of the camera, and the data decoding module Complete the interpretation of the barcode.
进一步的，所述扫码区为一片透明玻璃。Further, the scanning area is a piece of transparent glass.
进一步的，所述平面镜与摄像头的夹角为45°。Further, the angle between the plane mirror and the camera is 45°.
进一步的，所述摄像头为一个CMOS摄像头。Further, the camera is a CMOS camera.
与现有技术相比，本发明具有以下有益效果：首先，本发明通过为摄像头加设一组补光灯以及一个与其成45°角的平面镜，构成加镜面反射的摄像头模组，有效缩短条码图像与智能终端的距离，实现扣除景深，达到近场体验的目的；其次，此平面镜的设置改变了扫码方向，由原先的置于智能终端正前方一段距离位置处变为贴近智能终端表面，方便用户操作；最后，补光灯的设置解决了内嵌摄像头光线不足的问题。Compared with the prior art, the present invention has the following beneficial effects: Firstly, the present invention effectively forms a camera module by adding a set of fill light and a plane mirror at an angle of 45° to the camera, thereby effectively shortening the barcode. The distance between the image and the intelligent terminal realizes the purpose of deducting the depth of field and achieving the near-field experience. Secondly, the setting of the plane mirror changes the scanning direction, and the original position is placed at a distance from the front of the intelligent terminal to become close to the surface of the intelligent terminal. It is convenient for users to operate. Finally, the setting of the fill light solves the problem of insufficient light in the embedded camera.
下面结合附图和具体实施方式对本发明做进一步详细的说明。The present invention will be further described in detail below in conjunction with the drawings and specific embodiments.
附图说明DRAWINGS
图1为本发明实施例的构造示意图。FIG. 1 is a schematic structural view of an embodiment of the present invention.
图2为本发明实施例原理图。2 is a schematic diagram of an embodiment of the present invention.
图中：1-智能终端，2-扫码区，3-摄像头，4-平面镜，5-LED补光灯，6-条码。In the figure: 1-Intelligent terminal, 2-scan code area, 3-camera, 4-plane mirror, 5-LED fill light, 6-bar code.
具体实施方式detailed description
实施例一：如图1～2所示，一种摄像头模组扫码结构，该结构安装在智能终端1内，包括扫码区2和扫码模组，所述扫码区2设置在智能终端1正面并与该正面保持同一水平面，所述扫码模组设置在智能终端内部，包括摄像头模组和数据解码模块，所述摄像头模组包括摄像头3、平面镜4和LED补光灯5，所述平面镜4位于扫码区2正下方，以使光线从扫码区2进入经平面镜4反射后进入摄像头3，所述LED补光灯5位于摄像头和平面镜中之间。Embodiment 1: As shown in FIG. 1 to FIG. 2, a camera module scan code structure is installed in the smart terminal 1 and includes a scan code area 2 and a scan code module, and the scan code area 2 is set in the smart The front end of the terminal 1 is maintained at the same level as the front surface. The scan code module is disposed inside the smart terminal, and includes a camera module and a data decoding module. The camera module includes a camera 3, a plane mirror 4, and an LED fill light 5. The plane mirror 4 is located directly below the scanning code area 2, so that the light enters the scanning head 3 from the scanning code area 2 and enters the camera 3, and the LED fill light 5 is located between the camera and the plane mirror.
本实施例中，所述扫码区2为一片透明玻璃。In this embodiment, the scan code area 2 is a piece of transparent glass.
本实施例中，所述平面镜4与摄像头3的夹角为45°。In this embodiment, the angle between the plane mirror 4 and the camera 3 is 45°.
本实施例中，所述摄像头3为一个CMOS摄像头。In this embodiment, the camera 3 is a CMOS camera.
将条码贴近扫码区，条码6通过平面镜所成的虚像落在摄像头的成像区，数据解码模块完成对条码的解读。The bar code is placed close to the scan code area, and the virtual image formed by the bar code 6 through the plane mirror falls on the imaging area of the camera, and the data decoding module completes the interpretation of the bar code.
在本实施例中采用视场角为62°的CMOS摄像头。条码通过平面镜所成的虚像在摄像头的前方，当所成虚像在摄像头成像区内时，摄像头能够完整的扫到条码。由于本 发明实施例设置的扫码方式为贴近式，所以人拿手机或条码纸贴近甚至于紧贴扫码区时，条码近乎平行于扫码区，二者夹角基本不会超过15°，条码所成虚像能够完整的处于摄像头成像区内，因而，本发明实施例的摄像头模组能够很好的采集条码图像。In the present embodiment, a CMOS camera having an angle of view of 62 is employed. The virtual image formed by the bar code through the plane mirror is in front of the camera. When the virtual image is in the imaging area of the camera, the camera can completely scan the barcode. Due to this The scanning code set by the embodiment of the invention is close to the type, so when the person picks up the mobile phone or the barcode paper and even closes to the scanning code area, the barcode is nearly parallel to the scanning code area, and the angle between the two does not exceed 15°, and the barcode is The virtual image can be completely in the imaging area of the camera. Therefore, the camera module of the embodiment of the invention can capture the barcode image well.
而且本发明实施例中只要摄像头与平面镜距离设置妥当，可以使得条码与智能终端的最小直线距离近乎于0。Moreover, in the embodiment of the present invention, as long as the distance between the camera and the plane mirror is properly set, the minimum linear distance between the barcode and the smart terminal can be made close to zero.
以上所述仅为本发明的较佳实施例，凡依本发明申请专利范围所做的均等变化与修饰，皆应属本发明的涵盖范围。 The above are only the preferred embodiments of the present invention, and all changes and modifications made to the scope of the present invention should fall within the scope of the present invention.

Claims (8)

  1. 一种摄像头模组扫码结构，该结构安装在智能终端内，其特征在于：包括扫码区和扫码模组，所述扫码区设置在智能终端正面并与该正面保持同一水平面，所述扫码模组设置在智能终端内部，包括摄像头模组和数据解码模块，所述摄像头模组包括摄像头、平面镜和LED补光灯，所述平面镜位于扫码区正下方，以使光线从扫码区进入经平面镜反射后进入摄像头，所述LED补光灯位于摄像头和平面镜中之间。The camera module scan code structure is installed in the smart terminal, and comprises: a scan code area and a scan code module, wherein the scan code area is disposed on the front surface of the smart terminal and maintains the same horizontal plane with the front surface. The scan code module is disposed inside the smart terminal, and includes a camera module and a data decoding module. The camera module includes a camera, a plane mirror and an LED fill light, and the plane mirror is located directly below the scan code area to enable the light to sweep. The code area enters the camera after being reflected by the plane mirror, and the LED fill light is located between the camera and the plane mirror.
  2. 根据权利要求1所述的摄像头模组扫码结构，其特征在于：所述扫码区为一片透明玻璃。The scan module structure of the camera module according to claim 1, wherein the scan code area is a piece of transparent glass.
  3. 根据权利要求2所述的摄像头模组扫码结构，其特征在于：所述平面镜与摄像头的夹角为45°。The scan module structure of the camera module according to claim 2, wherein the angle between the plane mirror and the camera is 45°.
  4. 根据权利要求1所述的摄像头模组扫码结构，其特征在于：所述摄像头为一个CMOS摄像头。The camera module scan code structure according to claim 1, wherein the camera is a CMOS camera.
  5. 一种摄像头模组扫码方法，其特征在于，按以下步骤进行：在智能终端正面安装一扫码区，该扫码区并与该正面保持同一水平面；并在智能终端内部设置扫码模组，该扫码模组包括摄像头模组和数据解码模块，该摄像头模组包括摄像头、平面镜和LED补光灯，所述平面镜位于扫码区正下方，以使光线从扫码区进入经平面镜反射后进入摄像头，所述LED补光灯位于摄像头和平面镜中之间；然后将条码贴近扫码区，条码通过平面镜所成的虚像落在摄像头的成像区，数据解码模块完成对条码的解读。A camera module scanning code method is characterized in that: a scanning code area is installed on the front surface of the smart terminal, and the scanning code area is kept at the same level with the front surface; and the scanning code module is set inside the intelligent terminal. The scan code module includes a camera module and a data decoding module. The camera module includes a camera, a plane mirror and an LED fill light. The plane mirror is located directly below the scan code area, so that the light enters the mirror mirror from the scan code area. After entering the camera, the LED fill light is located between the camera and the plane mirror; then the barcode is placed close to the scan code area, the virtual image formed by the barcode through the plane mirror falls on the imaging area of the camera, and the data decoding module completes the interpretation of the barcode.
  6. 根据权利要求5所述的摄像头模组扫码方法，其特征在于：所述扫码区为一片透明玻璃。The method for scanning code of a camera module according to claim 5, wherein the scanning area is a piece of transparent glass.
  7. 根据权利要求6所述的摄像头模组扫码方法，其特征在于：所述平面镜与摄像头的夹角为45°。The image scanning method of the camera module according to claim 6, wherein the angle between the plane mirror and the camera is 45°.
  8. 根据权利要求5所述的摄像头模组扫码方法，其特征在于：所述摄像头为一个CMOS摄像头。 The camera module scanning method according to claim 5, wherein the camera is a CMOS camera.
PCT/CN2016/094839 2016-03-05 2016-08-12 Code-scanning structure and method for camera module WO2017152579A1 (en)

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