Barcode recognition module and barcode recognition device

Abstract

The embodiment of the utility model discloses a barcode recognition module and a barcode recognition device. An indicator light projection window is arranged on a shell, and a circular groove is arranged therein, a circular lens is installed in the circular groove, glue is dripped into the glue dispensing hole arranged at the bottom of the shell and an opening communicating with the circular groove, so that the circular lens is fixed in the circular groove. The technical problem of increased equipment cost and increased equipment size caused by the use of a separate plastic part to fix the lens of the barcode reading device in the prior art is solved, and a separate plastic part for fixing the lens is avoided, thereby achieving the technical effect of reducing the cost of the barcode recognition module and reducing the size of the barcode recognition module.

Description

Technical Field

[0001] The embodiments of the utility model relate to the technical field of barcode reading, and in particular to a barcode recognition module and a barcode recognition device. Background Art

[0002] Barcodes are graphic symbols used to represent various data information, and barcode recognition equipment is a collection and conversion device that specifically restores these graphic symbols into data information. Barcode recognition technology has been developed for many years, and barcode recognition equipment is rapidly being widely used in many industries and applications. The barcode reading module is the core component of the barcode reading device and is installed in the barcode reading device.

[0003] However, in the current barcode reading devices, the aiming lens is fixed separately on a plastic part, and the plastic part is fixed between the housing and the circuit board. On the one hand, the independent plastic part needs to be pressed by a separate mold, which increases the cost of the equipment; on the other hand, using a separate plastic part to fix the lens also increases the size of the equipment. Utility Model Content

[0004] The embodiments of the utility model provide a barcode recognition module and a barcode recognition device, which solve the technical problems in the prior art that the lens of the barcode reading device is fixed by a separate plastic part, which leads to increased equipment cost and increased equipment size.

[0005] The present invention provides a barcode recognition module, which includes:

[0006] A shell, wherein a lighting projection window, a camera window and an indicator light projection window are sequentially arranged on the front of the shell in a horizontal direction; the indicator light projection window has an appearance of a circular hole, a circular groove is arranged in the indicator light projection window, and an opening is arranged on the bottom side of the circular groove; a circular through hole is arranged at the bottom of the indicator light projection window, and the diameter of the circular through hole is smaller than the diameter of the indicator light projection window; a glue dispensing hole is arranged on one side of the bottom surface of the shell close to the indicator light projection window, and the glue dispensing hole is communicated with the circular groove through the opening;

[0007] A circular lens is installed in the circular groove in the indicator light projection window and is blocked by the annular protrusion forming the circular through hole; glue enters through the glue dispensing hole and enters the circular groove through the opening to fix the circular lens in the circular groove; a first distance between the front and rear of the housing is greater than the focal length of the circular lens;

[0008] A camera assembly, wherein the camera assembly is arranged inside the housing, one end of the lens of the camera assembly is arranged in the camera window, and the other end of the camera assembly is connected to the first circuit board through a connector; at least two assembly screw holes are also arranged at the bottom of the housing, and the camera assembly is fixed through the assembly screw holes;

[0009] The first circuit board has a decoding function, and at least two first screw holes are arranged on the first circuit board. The first circuit board is fixed to the rear of the housing by screws through the first screw holes.

[0010] Furthermore, the camera assembly at least includes a lens, a lens base, an image sensor, a second circuit board and a connector;

[0011] The lens is mounted on the lens base through threads, and the image sensor is welded on the front of the second circuit board; the lens base is arranged in front of the second circuit board, and the image sensor is wrapped between the lens base and the second circuit board; the connector is welded on the back of the second circuit board, and the connector is a connector, and the camera assembly is connected to the first circuit board through the connector.

[0012] Furthermore, the first circuit board includes at least a fill light, an indicator light, a positioning light, at least two main controllers, a camera connector, and an external connector;

[0013] At least two of the main controllers control the switches of the fill light, the indicator light, and the positioning light; the main controller is also used to obtain image information collected by the image sensor, and decode the image information and transmit it to a host computer connected to the first circuit board through the external connector.

[0014] Furthermore, at least two second screw holes are provided on the rear side of the housing, and positions of the second screw holes correspond to positions of the first screw holes. The screws fix the first circuit board to the rear side of the housing through the second screw holes.

[0015] Furthermore, the lighting projection window has an appearance of a square speaker hole that is larger in the front and smaller in the back.

[0016] Furthermore, the upper surface and the lower surface inside the shell each form a concave groove for arranging the camera assembly.

[0017] An embodiment of the utility model further provides a barcode recognition device, which includes the barcode recognition module described in any of the above embodiments, and also includes a host computer connected to the barcode recognition module.

[0018] The embodiment of the utility model discloses a barcode recognition module and a barcode recognition device. An indicator light projection window is arranged on a shell, and a circular groove is arranged therein, a circular lens is installed in the circular groove, glue is dripped into the glue dispensing hole arranged at the bottom of the shell and an opening communicating with the circular groove, so that the circular lens is fixed in the circular groove. The technical problem of increased equipment cost and increased equipment size caused by the use of a separate plastic part to fix the lens of the barcode reading device in the prior art is solved, and a separate plastic part for fixing the lens is avoided, thereby achieving the technical effect of reducing the cost of the barcode recognition module and reducing the size of the barcode recognition module. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is an appearance diagram of a barcode recognition module provided by an embodiment of the utility model;

[0020] Figure 2 This is a structural exploded diagram of a barcode recognition module provided by an embodiment of the utility model;

[0021] Figure 3 This is a structural decomposition diagram of a barcode recognition module provided by an embodiment of the utility model from another perspective.

[0022] Figure markings: 1-housing; 2-circular lens; 3-camera assembly; 4-first circuit board; 5-screw; 11-illumination projection window; 12-camera window; 13-indicator light projection window; 14-circular groove; 15-opening; 16-circular through hole; 17-glue hole; 18-assembly screw hole; 19-second screw hole; 31-lens; 32-lens base; 33-second circuit board; 34-connector; 41-first screw hole; 42-main controller; 43-camera connector; 44-external connector; 121-concave groove. DETAILED DESCRIPTION

[0023] The present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It is to be understood that the specific embodiments described herein are only used to explain the present invention, rather than to limit the present invention. It should also be noted that, for ease of description, only the parts related to the present invention, rather than all structures, are shown in the accompanying drawings.

[0024] It should be noted that the terms "first", "second", etc. in the specification, claims and drawings of the utility model are used to distinguish different objects, rather than to limit a specific order. The following embodiments of the utility model can be implemented separately, and the embodiments can also be implemented in combination with each other, and the embodiments of the utility model do not make specific limitations on this.

[0025] Figure 1This is an appearance diagram of a barcode recognition module provided by an embodiment of the utility model. Figure 2 It is a structural decomposition diagram of a barcode recognition module provided by an embodiment of the utility model. Figure 3 This is a structural decomposition diagram of a barcode recognition module provided by an embodiment of the utility model from another perspective.

[0026] like Figure 1-Figure 3 As shown, the barcode recognition module includes:

[0027] The shell 1 has a lighting projection window 11, a camera window 12 and an indicator light projection window 13 arranged in sequence on the front side thereof in a horizontal direction; the indicator light projection window 13 has a circular hole in appearance, a circular groove 14 is arranged in the indicator light projection window 13, and an opening 15 is arranged on the bottom side of the circular groove 14; a circular through hole 16 is arranged at the bottom of the indicator light projection window 13, and the diameter of the circular through hole 16 is smaller than the diameter of the indicator light projection window 13; a glue dispensing hole 17 is arranged on one side of the bottom surface of the shell 1 close to the indicator light projection window 13, and the glue dispensing hole 17 is communicated with the circular groove 14 through the opening 15.

[0028] A circular lens 2 is installed in a circular groove 14 in the indicator light projection window 13 and is blocked by an annular protrusion forming a circular through hole 16; glue enters through the glue dispensing hole 17 and enters the circular groove 14 through the opening 15 to fix the circular lens 2 in the circular groove 14; a first distance between the front and rear of the housing 1 is greater than the focal length of the circular lens 2.

[0029] The camera assembly 3 is arranged inside the housing 1, one end of the lens 31 of the camera assembly 3 is arranged in the camera window 12, and the other end of the camera assembly 3 is connected to the first circuit board 4 through a connector; at least two assembly screw holes 18 are also provided at the bottom of the housing 1, and the camera assembly 3 is fixed through the assembly screw holes 18.

[0030] The first circuit board 4 has a decoding function, and is provided with at least two first screw holes 41 . The first circuit board 4 is fixed to the rear of the housing 1 by screws 5 through the first screw holes 41 .

[0031] Specifically, by fixing the circular lens 2 with glue, plugging and assembling the camera assembly 3 and the first circuit board 4, and fixing them with screws through the assembly screw holes 18, there is no need to use an additional plastic part to fix the circular lens 2. Only a plastic part mold of the outer shell 1 is required, which reduces the development of the mold, reduces the production cost of the equipment, and reduces the size of the equipment. At the same time, it also makes the assembly process of the equipment simpler, reduces the assembly requirements, and improves production efficiency.

[0032] Optionally, the camera assembly 3 includes at least a lens 31, a lens base 32, an image sensor ( Figure 2 ), the second circuit board 33 and the connector 34 are not shown due to viewing angle.

[0033] The lens 31 is installed on the lens base 32 through threads, and the image sensor is welded on the front of the second circuit board 33; the lens base 32 is set in front of the second circuit board 33, and the image sensor is wrapped between the lens base 32 and the second circuit board 33; the connector 34 is welded on the back of the second circuit board 33, and the connector 34 is a connector. The camera assembly 3 is connected to the first circuit board 4 through the connector 34.

[0034] Specifically, the camera assembly 3 is fixed to the first circuit board 4 by a connector 34 in the form of a plug-in. On the one hand, when the camera assembly 3 fails, the camera assembly 3 can be quickly replaced alone without replacing the entire circuit board. On the other hand, the camera assembly 3 is inserted into the housing 1 as a separate component, and the focal length of the camera assembly 3 can be adjusted in advance before being assembled into the housing 1. If there are problems such as poor focusing later, the camera assembly 3 can be unplugged and returned to the factory for processing, avoiding the problem of complicated and time-consuming focusing process after the camera and the circuit board are assembled.

[0035] Optionally, the first circuit board 4 includes at least a fill light, an indicator light, a positioning light, at least two main controllers 42, a camera connector 43 and an external connector 44;

[0036] At least two main controllers 42 control the switches of the fill light, indicator light, and positioning light; the main controller 42 is also used to obtain image information collected by the image sensor, and decode the image information and transmit it to the host computer connected to the first circuit board 4 through the external connector 44.

[0037] Specifically, the main controller 42 can obtain image information from the image sensor and decode the image information. Simultaneous decoding by multiple main controllers 42 can improve the decoding speed of the barcode recognition module. After decoding, the decoding result can be output to the host computer through the external connector 44.

[0038] Alternatively, if Figure 2 As shown, at least two second screw holes 19 are provided at the rear of the housing 1 , and the positions of the second screw holes 19 correspond to the positions of the first screw holes 41 . The screws 5 fix the first circuit board 4 to the rear of the housing 1 through the second screw holes 19 .

[0039] Alternatively, if Figure 1 As shown, the appearance of the lighting projection window 11 is a square speaker hole that is larger in the front and smaller in the back.

[0040] Alternatively, if Figure 2 As shown, the upper surface and the lower surface inside the housing 1 each form a concave groove 121 for arranging the camera assembly 3.

[0041] The embodiment of the utility model further provides a barcode recognition device, which includes the barcode recognition module in any of the above embodiments and also includes a host computer connected to the barcode recognition module.

[0042] The barcode recognition device provided in the embodiment of the present utility model includes the barcode recognition module in the above embodiment, so the barcode recognition device provided in the embodiment of the present utility model also has the beneficial effects described in the above embodiment, which will not be repeated here.

[0043] In the description of the embodiments of the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0044] Finally, it should be noted that the above are only preferred embodiments of the present invention and the technical principles used. Those skilled in the art will understand that the present invention is not limited to the specific embodiments described herein, and that various obvious changes, readjustments and substitutions can be made by those skilled in the art without departing from the scope of protection of the present invention. Therefore, although the present invention is described in more detail through the above embodiments, the present invention is not limited to the above embodiments, and may include more other equivalent embodiments without departing from the concept of the present invention, and the scope of the present invention is determined by the scope of the appended claims.

Claims

1. A barcode recognition module, characterized in that: The barcode recognition module includes: A shell, wherein a lighting projection window, a camera window and an indicator light projection window are sequentially arranged on the front of the shell in a horizontal direction; the indicator light projection window has an appearance of a circular hole, a circular groove is arranged in the indicator light projection window, and an opening is arranged on the bottom side of the circular groove; a circular through hole is arranged at the bottom of the indicator light projection window, and the diameter of the circular through hole is smaller than the diameter of the indicator light projection window; a glue dispensing hole is arranged on one side of the bottom surface of the shell close to the indicator light projection window, and the glue dispensing hole is communicated with the circular groove through the opening; A circular lens is installed in the circular groove in the indicator light projection window and is blocked by the annular protrusion forming the circular through hole; glue enters through the glue dispensing hole and enters the circular groove through the opening to fix the circular lens in the circular groove; a first distance between the front and rear of the housing is greater than the focal length of the circular lens; A camera assembly, wherein the camera assembly is arranged inside the housing, one end of the lens of the camera assembly is arranged in the camera window, and the other end of the camera assembly is connected to the first circuit board through a connector; at least two assembly screw holes are also arranged at the bottom of the housing, and the camera assembly is fixed through the assembly screw holes; The first circuit board has a decoding function, and at least two first screw holes are arranged on the first circuit board. The first circuit board is fixed to the rear of the housing by screws through the first screw holes.

2. The barcode recognition module according to claim 1, characterized in that: The camera assembly at least includes a lens, a lens base, an image sensor, a second circuit board and a connector; The lens is mounted on the lens base through threads, and the image sensor is welded on the front of the second circuit board; the lens base is arranged in front of the second circuit board, and the image sensor is wrapped between the lens base and the second circuit board; the connector is welded on the back of the second circuit board, and the connector is a connector, and the camera assembly is connected to the first circuit board through the connector.

3. The barcode recognition module according to claim 2, characterized in that: The first circuit board at least includes a fill light, an indicator light, a positioning light, at least two main controllers, a camera connector and an external connector; At least two of the main controllers control the switches of the fill light, the indicator light, and the positioning light; the main controller is also used to obtain image information collected by the image sensor, and decode the image information and transmit it to a host computer connected to the first circuit board through the external connector.

4. The barcode recognition module according to claim 1, characterized in that: At least two second screw holes are arranged on the rear side of the housing, and the positions of the second screw holes correspond to the positions of the first screw holes. The screws fix the first circuit board to the rear side of the housing through the second screw holes.

5. The barcode recognition module according to claim 1, characterized in that: The appearance of the lighting projection window is a square speaker hole which is larger in the front and smaller in the back.

6. The barcode recognition module according to claim 1, characterized in that: The upper surface and the lower surface inside the shell each form a concave groove for arranging the camera assembly.

7. A barcode recognition device, characterized in that: The barcode recognition device comprises the barcode recognition module according to any one of claims 1 to 6, and further comprises a host computer connected to the barcode recognition module.

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