CN219046187U - Code scanning device and code scanning terminal - Google Patents

Abstract

The utility model discloses a code scanning device and a code scanning terminal. The first polaroid is arranged on the code scanning bracket and is positioned on a photosensitive path of the first camera, the first polaroid has a first polarization direction, and reflected light along the first polarization direction can pass through the first polaroid to reach the first camera. The code scanning device can be used in various scenes, improves the accuracy and the use efficiency of code scanning of the code scanning device, and expands the use range of the bar code scanning device. Under the high reflection light scene, the glare phenomenon on the camera sensor is solved, the bar code can be clearly imaged, and decoding is successful. Under the conventional dim light scene, the phenomena of unclear imaging and slow imaging of the camera are solved, and the decoding efficiency is improved.

Description

Code scanning device and code scanning terminal

Technical Field

The utility model relates to the technical field of bar code scanning equipment, in particular to a code scanning terminal and code scanning equipment.

Background

The bar code scanning device decodes and reads the content of the bar code by utilizing an optical principle, and then transmits information contained in the bar code to other devices, so that the bar code scanning device is widely applied to bar codes for scanning commodities and documents in supermarkets, logistics express, libraries and the like.

At present, along with the continuous expansion of the application field of the bar code, the reflected light generated by the irradiation of the outdoor light to the bar code is directly received, sometimes the reflected light is insufficient, the imaging of a camera is unclear and slow, a light supplementing lamp is often installed in order to adapt to the decoding and reading of the bar code under different environments, the light of the light supplementing lamp irradiates the bar code, and the camera performs imaging and decoding on the reflected light. However, the use frequency of the scanning terminal under the high-reflection light scene is greatly increased by adding the light supplementing lamp, particularly, the carrier forms of the bar codes are various, the high-reflection light can be generated on the surfaces of high-reflection materials such as a mobile phone screen, metal parts and glass sometimes, when the light supplementing lamp irradiates the surfaces of the high-reflection materials, high-reflection light can be generated, very bright light spots appear on the camera sensor, a glare phenomenon appears, at the moment, the camera takes images in a fuzzy manner or directly cannot see pictures, the bar codes are extremely slow to read, even the bar codes are wrongly read, and the bar codes cannot be read.

Disclosure of Invention

Aiming at the technical problems, the utility model aims to provide a code scanning head and code scanning equipment, wherein a first camera and a second camera are arranged on the code scanning head, and a first polaroid is arranged at the front end of the first camera, so that the code scanning efficiency in a conventional low-light environment can be ensured, the problems of difficult scanning and easy error in high-reflection light can be solved, and the application range and the application efficiency of the code scanning equipment are improved.

In order to achieve the above object, the present utility model provides a scanning terminal comprising:

a code scanning bracket;

the camera assembly is arranged on the code scanning bracket and comprises a first camera and a second camera;

the first polaroid is arranged on the code scanning bracket and is positioned on a photosensitive path of the first camera, the first polaroid has a first polarization direction, and reflected light along the first polarization direction can pass through the first polaroid to reach the first camera;

when the code scanning head scans codes, and reflected light in multiple directions causes that the second camera cannot image, the first camera can image by means of the acquired reflected light in the first polarization direction.

In some preferred embodiments, the device further comprises a crystal glass sheet mounted on the code scanning bracket and positioned on the photosensitive path of the second camera.

In some preferred embodiments, the device further comprises a second polarizer mounted on the code scanning bracket and located on a photosensitive path of the second camera, wherein the second polarizer has a second polarization direction, and reflected light along the second polarization direction can pass through the second polarizer to reach the second camera.

In some preferred embodiments, the first polarization direction of the first polarizer is perpendicular to the second polarization direction of the second polarizer.

In some preferred embodiments, the device further comprises a third camera mounted on the code scanning bracket and a crystal glass sheet, wherein the crystal glass sheet is positioned on a photosensitive path of the third camera, and all reflected light can pass through the crystal glass sheet to reach the third camera.

In some preferred embodiments, the first polarizer, the second polarizer, and the crystal glass sheet may be integrally formed.

In some preferred embodiments, the code scanning support comprises an upper support and a lower support, the upper support is mounted on the lower support, the upper support leaves a window for receiving reflected light by the camera assembly, and the first camera, the second camera and the third camera are mounted on the lower support.

In some preferred embodiments, the window comprises a first window, a second window, and a third window, the first polarizer, the second polarizer, and the crystal glass sheet being positioned in the first window, the second window, and the third window, respectively, in that order.

In some preferred embodiments, the first camera, the second camera and the third camera are sequentially arranged at intervals side by side;

still including aiming laser instrument and light filling illumination lamp, aiming laser instrument with the light filling illumination lamp is located respectively side by side the both sides of camera module.

According to another aspect of the present application, there is further provided a code scanning apparatus, including:

a code scanning gun comprising a scanning head and a handle as described in any one of the above preferred embodiments, the scanning head being mounted on the handle;

the host is used for receiving and processing the code scanning information of the code scanning terminal;

the base is used for connecting the code scanning gun and the host.

Compared with the prior art, the code scanning device and the code scanning terminal provided by the utility model have the following beneficial effects:

1. the device can be used in a high-reflection light scene, solves the glare phenomenon on a camera sensor, can clearly image a bar code, and can successfully decode the bar code;

2. the method can be used in a conventional weak light scene, the phenomena of unclear imaging and slow imaging of a camera are solved, and the decoding efficiency is improved;

3. the barcode scanning device is used in various scenes, so that the accuracy and the use efficiency of the barcode scanning device are improved, and the use range of the barcode scanning device is enlarged.

Drawings

The above features, technical features, advantages and implementation of the present utility model will be further described in the following description of preferred embodiments with reference to the accompanying drawings in a clear and easily understood manner.

FIG. 1 is an overall block diagram of an embodiment of the present utility model;

FIG. 2 is a diagram of the lower bracket structure of an embodiment of the present utility model;

fig. 3 is a diagram of the upper bracket structure of the embodiment of the present utility model.

Reference numerals illustrate:

the code scanning bracket 1, the upper bracket 11, the lower bracket 12, the first camera 21, the second camera 22, the third camera 23, the first polaroid 31, the second polaroid 32, the crystal glass 33, the first window 41, the second window 42, the third window 43, the aiming laser 5 and the supplementing light illuminating lamp 6.

Detailed Description

In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the following description will explain the specific embodiments of the present utility model with reference to the accompanying drawings. It is evident that the drawings in the following description are only examples of the utility model, from which other drawings and other embodiments can be obtained by a person skilled in the art without inventive effort.

Referring to fig. 1, the scanning head of the preferred embodiment of the present utility model includes a code scanning bracket 1, a camera assembly, and a first polarizing plate 31. The camera component is arranged on the code scanning bracket 1 and comprises a first camera 21 and a second camera 22; the first polarizer 31 is mounted on the code scanning bracket 1 and is located on the photosensitive path of the first camera 21, the first polarizer 31 has a first polarization direction, and reflected light along the first polarization direction can pass through the first polarizer 31 to reach the first camera 21; when the code scanning head scans codes, and the second camera 22 cannot image due to reflected light in multiple directions, the first camera 21 can image by virtue of the acquired reflected light in the first polarization direction.

In this embodiment, the first polarizer 31 is disposed on the photosensitive path of the first camera 21, so that the reflected light in the first polarization direction can be used to image when the second camera 22 cannot image in the highly reflected light scene. Whereas in a normal low light scene the first camera 21 is not able to receive sufficient reflected light of the first polarization direction and the second camera 22 is able to receive all reflected light for imaging. The combined use of the first camera 21, the second camera 22 and the first polarizer 31 can strengthen the imaging effect under each scene of the code scanning head, reduce the time required for code scanning, and improve the code scanning efficiency of the code scanning head.

Specifically, the camera assemblies are imaged simultaneously, the first camera 21 and the second camera 22 work simultaneously, and if the first camera 21 and the second camera 22 cannot image, software attaching, identifying and analyzing can be performed on the respective imaging, so that the success rate and reliability of imaging are ensured. It should be noted that the first camera 21 may be preferentially used by the scanning head when the scanning head determines that the scanning head is currently in a high reflection light scene, and the second camera 22 may be assisted or not operated. However, the working procedure of the wharf is not limited to this working mode, and any different working procedure is within the protection scope of this patent.

Preferably, a crystal glass plate 33 is mounted on the code scanning bracket 1 and is positioned on the photosensitive path of the second camera 22.

The crystal glass plate 33 has good light transmittance, and can allow enough light to pass through in a conventional weak light scene, so as to ensure the imaging effect of the second camera 22.

Further, the device further comprises a second polarizer 32, which is mounted on the code scanning bracket 1 and is located on the photosensitive path of the second camera 22, wherein the second polarizer 32 has a second polarization direction, and the reflected light along the second polarization direction can pass through the second polarizer 32 to reach the second camera 22.

The second polarizer 32 is disposed on the photosensitive path of the second camera 22, so as to further enhance the code scanning efficiency of the code scanning head in the high-reflection light scene. Under the high reflection light scene, the embodiment can effectively obtain sufficient high reflection light, scan the bar code faster and more accurately, and make up for the condition of insufficient reflection light under the conventional weak light condition by the lamination identification analysis of the first camera 21 and the second camera 22, so as to strengthen the code scanning imaging effect under the conventional weak light scene.

Optionally, the first polarizer 31 and the second polarizer 32 may be respectively located inside the lens barrels of the first camera 21 and the second camera 22, and the integrated design of the camera assembly may greatly reduce parts required by the wharf, so as to achieve modular assembly. For example, the first polarizer 31 may be attached to the optical glass of the first camera 21 by back-bonding, or may be fixed to the lens barrel of the first camera 21 by a press ring.

Further, the first polarization direction of the first polarizer 31 is perpendicular to the second polarization direction of the second polarizer 32.

The first polarization direction of the first polarizer 31 is perpendicular to the second polarization direction of the second polarizer 32, which means that the reflected light that can be obtained by the first polarizer 31 and the second polarizer 32 is also perpendicular, and the barcode images generated by the first camera 21 and the second camera 22 can be mutually supplemented and filled, so that the barcode images are clearer, and the code scanning efficiency and the success rate are higher.

Further, the device further comprises a third camera 23 and a crystal glass sheet 33, wherein the third camera 23 and the crystal glass sheet 33 are installed on the code scanning bracket 1, the crystal glass sheet 33 is positioned on a photosensitive path of the third camera 32, and all reflected light can pass through the crystal glass sheet 33 to reach the third camera 23.

In this embodiment, the third camera 23 is configured to prevent that, in a normal low-light scene, when the first camera 21 and the second camera 22 still do not acquire sufficient reflected light and cannot scan the bar code effectively, the bar code can be scanned by the third camera 23, and the third camera 23 greatly enhances the scanning reliability of the scanning device in the dual-scene use mode of the high-reflection light scene and the normal low-light scene.

It should be noted that the third camera 23 may be disposed not only in the middle of the first camera 21 and the second camera 22, but also on a side of the second camera 22 away from the first camera 21, and may also be disposed above the middle of the first camera 21 and the second camera 22, so as to form a triangle shape. The camera module is not limited to this, and any structure is within the scope of protection of this patent.

Further, the first polarizing plate 31, the second polarizing plate 32, and the crystal glass plate 33 may be integrally formed.

In this embodiment, the integrated light-transmitting glass can be installed and its position divide into first polarization district, second polarization district and full light-transmitting district, and required spare part of pier is swept in the required spare part of integration light-transmitting glass has significantly reduced, convenient equipment. At the moment, the light-transmitting glass is arranged at the front end of the camera component through the mounting groove of the code scanning bracket 1.

Preferably, referring to fig. 2 and 3, the code scanning bracket 1 includes an upper bracket 11 and a lower bracket 12, the upper bracket 11 is mounted on the lower bracket 12, the upper bracket 11 leaves a window for receiving reflected light by the camera assembly, and the first camera 21, the second camera 22 and the third camera 23 are mounted on the lower bracket 12.

Specifically, the code scanning bracket 1 is assembled up and down, the upper bracket 11 is provided with a window of the photosensitive path of the camera assembly, the embodiment is convenient to install, and the upper bracket 11 and the lower bracket 22 are fixed by screws, so that the method is safe and reliable. It should be noted that the code scanning bracket 1 may be assembled left and right, and the camera assembly and the polarizer may be fastened inside the code scanning bracket 1.

Preferably, the window includes a first window 41, a second window 42, and a third window 43, and the first polarizer 31, the second polarizer 32, and the crystal glass 33 are sequentially positioned in the first window 41, the second window 42, and the third window 43, respectively.

The first polarizer 31, the second polarizer 32 and the crystal glass 33 may be adhered to the first window 41, the second window 42 and the third window 43 by glue. And the window can also be fixed inside the window through a clamping structure.

Further, the first camera 21, the second camera 22 and the third camera 23 are sequentially arranged at intervals side by side;

still include aiming laser 5 and make-up light illumination lamp 6, aiming laser 5 with make-up light illumination lamp 6 is located respectively side by side the both sides of camera subassembly.

Under the high reflection light scene, camera subassembly sets up side by side and can obtain the high reflection light of different angles as much as possible, can effectively image the bar code fast. Meanwhile, the first camera 21 and the second camera 22 can scan the bar code at the same time and different angles through the parallel design, images obtained by the two cameras can be integrated quickly, and the code scanning efficiency is improved. Meanwhile, the installation space of the camera component can be saved due to the side-by-side design, the volume of the equipment is reduced, and the camera is smaller and more portable. In the conventional dim light scene, the light is scarce, and the third camera 23 is positioned in the middle of the scanning dock when being designed side by side, and is closer to the bar code and easier to image when scanning the bar code.

The embodiment further comprises an aiming laser 5 and a supplemental light illumination lamp 6, wherein the aiming laser 5 is arranged side by side on the left side of the first camera 21, and the supplemental light illumination lamp 6 is arranged side by side on the right side of the third camera 23.

The aiming laser 5 and the light supplementing illumination 6 are arranged side by side with the camera assembly, so that the width of the equipment is reduced, and the equipment is easier to grasp. The side-by-side arrangement also enables the aiming laser 5 to better locate the bar code and the supplemental light illumination 6 also better reflects light to the camera assembly to the maximum.

Further, the preferred embodiment provides a code scanning device comprising: the code scanning gun, the host machine and the base; the code scanning gun comprises any one of the code scanning heads and handles in the embodiment; the host is used for receiving and processing code scanning information of the code scanning terminal; the base is used for connecting the code scanning gun and the host.

The base can be connected with the scanning port in a wireless mode or in a wired mode, and meanwhile the base is used for supplying power to the scanning port.

It should be noted that the above embodiments can be freely combined as needed. The foregoing is merely a preferred embodiment of the present utility model and it should be noted that modifications and adaptations to those skilled in the art may be made without departing from the principles of the present utility model, which are intended to be comprehended within the scope of the present utility model.

Claims (10)

1. Sweep pier, its characterized in that includes:

a code scanning bracket;

the camera assembly is arranged on the code scanning bracket and comprises a first camera and a second camera;

the first polaroid is arranged on the code scanning bracket and is positioned on a photosensitive path of the first camera, the first polaroid has a first polarization direction, and reflected light along the first polarization direction can pass through the first polaroid to reach the first camera;

when the code scanning head scans codes, and reflected light in multiple directions causes that the second camera cannot image, the first camera can image by means of the acquired reflected light in the first polarization direction.

2. The scanning terminal of claim 1, wherein,

the device also comprises a crystal glass sheet which is arranged on the code scanning bracket and is positioned on the photosensitive path of the second camera.

3. The scanning terminal of claim 1, wherein,

the second polarizer is arranged on the code scanning bracket and positioned on a photosensitive path of the second camera, the second polarizer has a second polarization direction, and reflected light along the second polarization direction can pass through the second polarizer to reach the second camera.

4. The scanning terminal of claim 3, wherein,

the first polarization direction of the first polarizer is perpendicular to the second polarization direction of the second polarizer.

5. The scanning terminal of claim 4, wherein,

the device is characterized by further comprising a third camera and a crystal glass sheet, wherein the third camera and the crystal glass sheet are arranged on the code scanning support, the crystal glass sheet is positioned on a photosensitive path of the third camera, and all reflected light can pass through the crystal glass sheet to reach the third camera.

6. The scanning terminal of claim 5, wherein,

the first polarizer, the second polarizer, and the crystal glass plate may be integrally formed.

7. The scanning terminal of claim 5, wherein,

the code scanning support comprises an upper support and a lower support, the upper support is mounted on the lower support, a window for receiving reflected light is reserved on the upper support, and the first camera, the second camera and the third camera are mounted on the lower support.

8. The scanning terminal of claim 7, wherein,

the window comprises a first window, a second window and a third window, and the first polaroid, the second polaroid and the crystal glass sheet are respectively and sequentially positioned in the first window, the second window and the third window.

9. The scanning terminal of claim 8, wherein,

the first camera, the second camera and the third camera are sequentially arranged side by side at intervals;

still including aiming laser instrument and light filling illumination lamp, aiming laser instrument with the light filling illumination lamp is located respectively side by side the both sides of camera subassembly.

10. Sweep a yard equipment, its characterized in that includes:

a code scanner comprising the scanner head of any one of claims 1-9 and a handle, said scanner head being mounted on said handle;

the host is used for receiving and processing the code scanning information of the code scanning terminal;

the base is used for connecting the code scanning gun and the host.

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