Barcode recognition device with multiple image sensors

Abstract

The utility model provides a bar code recognition device with multiple image sensors. The bar code recognition device comprises the image sensors, a processor, a UI display module and a communication module, the number of the image sensors is at least two, the processor comprises at least two image data interfaces, the image sensors are connected to the image data interfaces of the processor in a one-to-one correspondence mode, and the UI display module and the communication module are connected to the processor. A single processor platform is used, a plurality of image sensors are arranged for expansion, the small-size and large-view effect is achieved in an image splicing mode, the large-size scanning view is guaranteed, meanwhile, the size of bar code scanning equipment can be effectively reduced, meanwhile, the single processor platform is used, and the production cost is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of machine vision, in particular to a barcode recognition device of multiple image sensors. Background Art

[0002] In the application scenario of batch area array barcode reading, especially in the application scenario of batch barcode reading of whole boxes of cryopreservation tubes in the biomedical field, it is necessary to ensure the existing large-size barcode reading field of view, so as to be able to quickly read barcodes in batches over a large area, and at the same time, there is a requirement for miniaturization of barcode equipment. In the above application scenarios, the traditional approach is to use CIS or other line scanning technologies, which can achieve the purpose of small size of barcode equipment, but has significant disadvantages such as long scanning time and slow cycle time; or use CMOS area array cameras, which can achieve faster cycle time, but are limited by the angle of the lens, and it is difficult to achieve a smaller size while ensuring the field of view. Utility Model Content

[0003] In order to solve the problem that a large-size code reading field of view and a small-size barcode recognition device cannot satisfy the requirements at the same time, the utility model proposes a barcode recognition device with multiple image sensors.

[0004] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0005] A barcode recognition device with multiple image sensors includes an image sensor, a processor, a UI display module, and a communication module; the number of the image sensors is at least 2, the processor includes at least 2 image data interfaces, the image sensors are connected to the image data interfaces of the processor in a one-to-one correspondence, and the UI display module and the communication module are respectively connected to the processor.

[0006] Preferably, all image sensors are neatly arranged or dispersedly installed according to the barcode scanning field of view requirements.

[0007] Preferably, the scanning fields of adjacent image sensors overlap, are spliced, or are separated according to scanning requirements.

[0008] Preferably, the processor is a single-core or multi-core general-purpose ARM architecture embedded system processor.

[0009] Preferably, the UI display module is externally connected to a display touch screen.

[0010] Preferably, the communication module is remotely connected to the external device.

[0011] Preferably, the image data interface of the processor is any one or more of MIPI, DVP, and LVDS.

[0012] Preferably, the image sensor is fixedly installed inside the barcode recognition device.

[0013] Preferably, the image sensor is installed inside the barcode recognition device in a movable position and rotatable angle.

[0014] Preferably, the image sensor is a camera.

[0015] Compared with the prior art, the beneficial effects of the utility model are: using a single processor platform, equipped with multiple image sensor expansions, and using image stitching to achieve the effect of small size and large field of view, ensuring a large scanning field of view while effectively reducing the size of the barcode scanning device, and using a single processor platform to reduce production costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the specific implementation methods of the utility model or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0017] Figure 1 It is a structural block diagram of a barcode recognition device with multiple image sensors;

[0018] Figure 2 It is a schematic diagram of a barcode recognition device with dual image sensors;

[0019] Figure 3 Schematic diagram of a barcode recognition device with a single image sensor.

[0020] Among them, there are an image sensor 1, a processor 2, a UI display module 3, and a communication module 4. DETAILED DESCRIPTION

[0021] In order to provide a further understanding of the purpose, structure, features, and functions of the present invention, the present invention is described in detail below with reference to the embodiments.

[0022] In the description of the present invention, it should be noted that the terms "center", "up", "down", "left", "right", "vertical", "horizontal", "inside", "outside", etc. indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they cannot be understood as limitations on the present invention.

[0023] Please refer to Figure 1 and Figure 2 A barcode recognition device with multiple image sensors 1 includes an image sensor 1, a processor 2, a UI display module 3, and a communication module 4; the number of image sensors 1 is at least 2, the processor 2 includes at least 2 image data interfaces, the image sensors 1 are connected to the image data interfaces of the processor 2 one by one, and the UI display module 3 and the communication module 4 are connected to the processor 2 respectively. The image sensor 1 can be a camera or any device that can obtain clear barcode image information.

[0024] When in use, operation instructions are directly input through the UI display module 3, or operation instructions are remotely input through the communication module 4 to configure and operate the device, control multiple image sensors 1 to sense / capture images, and all the sensed / captured images are transmitted to the processor 2 through the image data interface. The processor 2 stitches, scans, recognizes and processes the images captured by all the image sensors 1. After the batch recognition processing of all the barcodes within the field of view read this time is completed, the barcode recognition results are transmitted to the UI display module 3 for direct display, or transmitted to the remote device through the communication module 4 for remote display of the barcode recognition results.

[0025] Please refer to Figure 2 and Figure 3 As is known to all, within a reasonable working area, the farther the code reading distance of the image sensor 1 is, the larger the code reading range is. Therefore, under the structure of a single image sensor 1, the size of the barcode recognition device needs to be set relatively large in order to obtain a large-size code reading field of view. The utility model uses a single processor 2 to connect multiple image sensors 1, and reduces the overall size of the barcode recognition device by reducing the code reading distance of the image sensor 1. Therefore, the code reading field of view of each image sensor 1 becomes smaller, but the number of image sensors 1 is increased. The final code reading field of view is the sum of the fields of view of all working image sensors 1, so a large-size code reading field of view can also be obtained; in this way, the large size of the code reading field of view and the miniaturization of the barcode recognition device can be guaranteed at the same time.

[0026] In a preferred embodiment, all image sensors 1 are neatly arranged or dispersedly installed according to the barcode scanning field of view requirements. In actual barcode scanning scenarios, some barcodes are concentrated and some are scattered. Under the premise that the size of the barcode recognition device is fixed and the number of image sensors 1 is fixed, the position and arrangement of the image sensors 1 are flexibly adjusted and configured according to actual conditions, so that each barcode can be within the barcode reading field of view of the image sensor 1, thereby improving the barcode reading efficiency.

[0027] In a further embodiment, the scanning fields of adjacent image sensors 1 overlap, or are spliced, or are separated according to scanning requirements. In actual barcode scanning scenarios, some barcodes are concentrated and some are scattered. Under the premise that the size of the barcode recognition device is fixed and the number of image sensors 1 is fixed, the position and arrangement of the image sensors 1 are flexibly adjusted and configured, so that the position of the barcode reading field of view of each image sensor 1 is different. If the barcodes are concentrated, the scanning fields of adjacent image sensors 1 can overlap or splice each other. If the barcodes are scattered, the scanning fields of adjacent image sensors 1 can be separated, so that each barcode can be within the barcode reading field of view.

[0028] In one embodiment, the processor 2 is a single-core or multi-core general-purpose ARM architecture embedded system processor 2 .

[0029] In one embodiment, the UI display module 3 is externally connected to a display touch screen, which can directly configure and operate the device, and can directly display information such as the device operation process and code reading results.

[0030] In one embodiment, the communication module 4 is remotely connected to the external device and realizes two-way communication with the external device. It can provide remote setting and operation functions, so that the operator can directly set and operate the barcode recognition device remotely through the external device, and can also send the code reading results remotely to the external device, so that the operator can directly view the results remotely on the external device.

[0031] In one embodiment, the image data interface of the processor 2 is any one or more of MIPI, DVP, LVDS, or any existing image sensor 1 interface, so as to be compatible with signal transmission of different image sensors 1 .

[0032] In one embodiment, the image sensor 1 is fixedly installed inside the barcode recognition device, and the position of the image sensor 1 cannot be moved. That is, the barcode recognition device of the present invention has a fixed size and shape of its code reading field of view.

[0033] In a preferred embodiment, the image sensor 1 is installed inside the barcode recognition device in a movable position and rotatable angle. The image sensor 1 can be installed inside the barcode recognition device through a rotatable fixed seat or other rotatable angle method. The fixed seat can be installed inside the barcode recognition device through a track or other movably positioned method. In this way, the barcode recognition device of the present invention has a code reading field of view with variable position, size, and shape, which can be flexibly adjusted according to the actual barcode distribution.

[0034] The present invention has been described by the above-mentioned relevant embodiments, however, the above-mentioned embodiments are only examples for implementing the present invention. It must be pointed out that the disclosed embodiments do not limit the scope of the present invention. On the contrary, any changes and modifications made without departing from the spirit and scope of the present invention are within the scope of patent protection of the present invention.

Claims

1. A barcode recognition device with multiple image sensors, characterized in that: The barcode recognition device comprises an image sensor, a processor, a UI display module, and a communication module; the number of the image sensors is at least 2, and the image sensors are installed inside the barcode recognition device in a movable position and rotatable angle; the processor comprises at least 2 image data interfaces, the image sensors are connected to the image data interfaces of the processor in a one-to-one correspondence, and the UI display module and the communication module are respectively connected to the processor; a single processor is connected to multiple image sensors, and the barcode recognition device's code reading field of view is the sum of the fields of view of all working image sensors.

2. The barcode recognition device with multiple image sensors as claimed in claim 1, characterized in that: All image sensors are installed neatly or dispersedly according to the barcode scanning field of view requirements.

3. The barcode recognition device with multiple image sensors as claimed in claim 2, characterized in that: The scanning fields of adjacent image sensors overlap, are joined, or are separated according to scanning requirements.

4. The barcode recognition device with multiple image sensors as claimed in claim 1, characterized in that: The processor is a single-core or multi-core general-purpose ARM architecture embedded system processor.

5. The barcode recognition device with multiple image sensors as claimed in claim 1, characterized in that: The UI display module is externally connected to a display touch screen.

6. The barcode recognition device with multiple image sensors as claimed in claim 1, characterized in that: The communication module is remotely connected to the external device.

7. The barcode recognition device with multiple image sensors as claimed in claim 1, characterized in that: The image data interface of the processor is any one or more of MIPI, DVP, and LVDS.

8. The barcode recognition device with multiple image sensors as claimed in claim 1, characterized in that: The image sensor is fixedly installed inside the barcode recognition device.

9. The barcode recognition device with multiple image sensors as claimed in claim 1, characterized in that: The image sensor is a camera.

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