CN215526678U - Intelligent illumination bar code scanner - Google Patents

Abstract

The embodiment of the utility model discloses an intelligent illumination bar code scanner, which comprises an image acquisition module and a decoding module; the image acquisition module comprises an image acquisition unit, a open field illumination unit and a dark field illumination unit; the decoding module comprises a processing unit; the image acquisition unit comprises a first signal input and output end, the open field illumination unit comprises a first control signal receiving end, the dark field illumination unit comprises a second control signal receiving end, and the processing unit comprises a second signal input and output end, a first control signal output end and a second control signal output end; the processing unit is used for controlling the working states of the open-field lighting unit and the dark-field lighting unit according to the received image signal. The bar code scanner comprises a bright field lighting unit and a dark field lighting unit, can scan common printed bar codes and can also deal with laser engraving or chemical etching and other types of bar codes, and the universality of the bar code scanner is improved.

Description

Intelligent illumination bar code scanner

Technical Field

The embodiment of the utility model relates to a barcode scanning technology, in particular to an intelligent illumination barcode scanner.

Background

At present, a barcode technology is increasingly applied to industries such as manufacturing, warehousing, logistics, express delivery, medical treatment and the like as an automatic information input technology with high efficiency and low cost. The bar codes used in these industries are typically printed onto the outer packaging of the product or a label with the bar code printed thereon is affixed in place. For scanning of printed barcodes, laser barcode scanners (which can only scan one-dimensional barcodes) or image barcode scanners (which can scan both one-dimensional and two-dimensional barcodes) are commonly used. The image scanner shoots the bar code image through the camera and identifies the bar code on the image through a software algorithm. In order to work normally in a dark working environment, a conventional image-based barcode scanner (hereinafter referred to as a scanner) is usually equipped with a set of white or red monochromatic LEDs as an illumination module. The traditional scanners are all in a bright field illumination mode in terms of illumination types, and can well scan printed bar codes.

However, in recent years, as manufacturing industry has begun to advance from automation to the intelligent era, the tracking fineness of the production flow has been greatly improved. More and more laser engraved bar codes, chemical etched bar codes and pneumatic firing pin marked bar codes are directly engraved on parts or equipment made of metal, plastic and the like. These barcodes are either of low contrast or only embossed with no color difference. Under the illumination of a traditional scanner, the contrast of the image, the bar code and the background acquired by the camera is very low, and even the image of the bar code cannot be normally acquired, so that the traditional scanner is difficult to read the bar code.

SUMMERY OF THE UTILITY MODEL

In view of this, the embodiment of the present invention provides an intelligent illumination barcode scanner, which can ensure that various types of barcodes can be read, and improve scanning accuracy.

The embodiment of the utility model provides an intelligent illumination bar code scanner, which comprises an image acquisition module and a decoding module;

the image acquisition module comprises an image acquisition unit, a open field illumination unit and a dark field illumination unit;

the decoding module comprises a processing unit;

the image acquisition unit comprises a first signal input and output end, the open field illumination unit comprises a first control signal receiving end, the dark field illumination unit comprises a second control signal receiving end, and the processing unit comprises a second signal input and output end, a first control signal output end and a second control signal output end;

the first signal input-output end is electrically connected with the second signal input-output end, the first control signal receiving end is electrically connected with the first control signal output end, and the second control signal receiving end is electrically connected with the second control signal output end; the processing unit is used for controlling the working states of the open-field lighting unit and the dark-field lighting unit according to the received image signals.

Optionally, the decoding module further includes an interface circuit;

the processing unit further comprises a decoding signal output end, the interface circuit comprises a decoding signal receiving end, and the decoding signal output end is electrically connected with the decoding signal receiving end; the interface circuit is used for sending the decoding signal to the terminal.

Optionally, the dark field illumination unit at least includes a first light emitting element group and a second light emitting element group, the first light emitting element group includes at least one first light emitting element, and the second light emitting element group includes at least one second light emitting element; the first light emitting element group and the second light emitting element group are arranged at different positions;

the second control signal output end at least comprises a second control signal output end and a second diethyl control output end;

the first light-emitting element group comprises a second control signal receiving end, and the second light-emitting element group comprises a second diethyl control signal receiving end;

the second control signal output end is electrically connected with the second control signal receiving end, and the second diethyl control signal output end is electrically connected with the second diethyl control signal receiving end. Optionally, the first light emitting element group includes a plurality of first light emitting elements, and the first light emitting elements include a first white light emitting element, a first red light emitting element, and a first blue light emitting element;

the second light emitting element group includes a plurality of second light emitting elements including a second white light emitting element, a second red light emitting element, and a second blue light emitting element.

Optionally, the image acquisition module further includes a photoelectric sensor;

the photoelectric sensor comprises a third signal input and output end, the processing unit further comprises a fourth signal input and output end, and the third signal input and output end is electrically connected with the fourth signal input and output end;

the processing unit is also used for controlling the working states of the open-field lighting unit and the dark-field lighting unit according to the received signals.

Optionally, the image acquisition module includes a light directing unit;

the light ray directing unit is used for projecting an image acquisition identifier in a field range of the image acquisition unit so as to enable the image acquisition unit to acquire images according to the image acquisition identifier.

Optionally, the image capturing unit comprises a zoom image capturing unit.

Optionally, the intelligent illumination barcode scanner further comprises a code reading key and a work indication module;

the code reading key comprises a code reading instruction output end, the processing unit comprises a code reading appointed receiving end, and the code reading instruction output end is electrically connected with the code reading instruction receiving end;

the working indication module comprises a working state signal receiving end, the processing unit comprises a working state signal output end, and the working state signal receiving end is electrically connected with the working state signal output end; the work indication module is used for indicating the working state of the intelligent illumination bar code scanner.

Optionally, the first control signal output by the first control signal output end includes a first duty ratio control signal;

the second control signal output by the second control signal output end comprises a second duty ratio control signal.

Optionally, the decoding signal output end includes a USB output end and a serial port output end;

the decoding signal receiving end comprises a USB receiving end and a serial port receiving end.

According to the intelligent illumination bar code scanner provided by the embodiment of the utility model, the image acquisition module acquires image signals and transmits the image signals to the processing unit, and the processing unit controls the working states of the open field illumination unit and the dark field illumination unit according to the received image signals. By controlling the working states of the bright field lighting unit and the dark field lighting unit, the intelligent illumination bar code scanner can scan common printed bar codes and can also cope with bar codes of laser engraving or chemical etching and the like, the defect that the acquisition of bar code images is limited due to the fact that a traditional intelligent illumination bar code scanner only adopts a bright field illumination mode is overcome, the effect that the scanner can scan bar codes with low contrast, no change in unevenness and no color difference is achieved, and the universality of the intelligent illumination bar code scanner is improved.

Drawings

Other features, objects and advantages of the utility model will become more apparent upon reading of the detailed description of non-limiting embodiments made with reference to the following drawings:

fig. 1 is a schematic structural diagram of an intelligent illumination barcode scanner according to an embodiment of the present invention;

fig. 2 is a schematic structural diagram of a dark field illumination unit according to an embodiment of the present invention;

fig. 3 is a schematic structural diagram of an image capturing unit according to an embodiment of the present invention;

fig. 4 is a schematic structural diagram of a processing unit according to an embodiment of the present invention.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention clearer, the technical solutions of the present invention will be fully described by the detailed description with reference to the accompanying drawings in the embodiments of the present invention. It is obvious that the described embodiments are a part of the embodiments of the present invention, not all embodiments, and all other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without inventive efforts fall within the scope of the present invention.

The embodiment of the utility model provides an intelligent illumination bar code scanner. Fig. 1 is a schematic structural diagram of an intelligent illumination barcode scanner according to an embodiment of the present invention. As shown in fig. 1, an apparatus for intelligently illuminating a barcode scanner includes: an image acquisition module 100 and a decoding module 200;

the image capturing module 100 includes an image capturing unit 110, a open field illumination unit 120, and a dark field illumination unit 130;

the decoding module 200 includes a processing unit 210;

the image acquisition unit 110 comprises a first signal input and output end 110A, the open-field illumination unit 120 comprises a first control signal receiving end 120A, the dark-field illumination unit 130 comprises a second control signal receiving end 130A, and the processing unit 210 comprises a second signal input and output end 210A, a first control signal output end 210B and a second control signal output end 210C;

the first signal input/output end 110A is electrically connected to the second signal input/output end 210A, the first control signal receiving end 120A is electrically connected to the first control signal output end 210B, and the second control signal receiving end 130A is electrically connected to the second control signal output end 210C; the processing unit 210 is used for controlling the operation states of the open field illumination unit 120 and the dark field illumination unit 130 according to the received image signal.

The intelligent illumination bar code scanner is also called a bar code reader, is reading equipment for reading information contained in a bar code, and transmits the content of the bar code to a computer or other equipment in a data line or wireless mode after decoding the content of the bar code by utilizing an optical principle. As shown in fig. 1, the intelligent illumination barcode scanner provided in the embodiment of the present invention includes an image acquisition module 100 and a decoding module 200, where the image acquisition module 100 includes an image acquisition unit 110, the decoding module 200 includes a processing unit 210, the image acquisition unit 110 is electrically connected to the processing unit 210, and the image acquisition unit 110 is configured to transmit an image signal to the processing unit 210. Specifically, the image capturing unit 110 includes a first signal input/output end 110A, and the processing unit 210 includes a second signal input/output end 210A. The first signal input/output end 110A is electrically connected to the second signal input/output end 210A, so that the image acquisition unit 110 outputs an image acquisition signal to the processing unit 210, and the processing unit 210 outputs control information to the image acquisition unit 110 to control the image acquisition unit. For enabling transmission of image signals between the image acquisition unit 110 and the processing unit 210.

Further, the image capturing module 100 further includes a open field illumination unit 120 and a dark field illumination unit 130, where a bright field is a field in which the bar code can be directly reflected to the image capturing unit 110 by the illumination light, and the field is bright and is a normal observation mode; the dark field illumination, which cannot directly reflect the barcode to the image pickup unit 110 by the illumination light, but can reflect the barcode information to the image pickup unit 110 by the diffused reflection of the light, is suitable for observing an object having a low contrast, such as a scratch, etc. The processing unit 210 may perform analysis based on the received image signal and control the open field illumination unit 120 to provide illumination or the dark field illumination unit 130 to provide illumination based on the analysis result. Specifically, the open field lighting unit 120 includes a first control signal receiving terminal 120A, the dark field lighting unit 130 includes a second control signal receiving terminal 130A, the processing unit 210 further includes a first control signal output terminal 210B and a second control signal output terminal 210C, the first control signal output terminal 210B is electrically connected to the first control signal receiving terminal 120A for realizing control signal transmission between the processing unit 210 and the open field lighting unit 120; the second control signal output end 210C is electrically connected to the second control signal receiving end 130A, and is used for realizing control signal transmission between the processing unit 210 and the dark field illumination unit 130.

Specifically, the image acquisition module 100 in the intelligent illumination barcode scanner first reads the barcode in the bright field illumination mode, the image acquisition unit 110 transmits the acquired image signal to the second signal input/output end 210A through the first signal input/output end 110A, the processing unit 210 decodes the image signal, if the barcode information can be acquired from the acquired image signal, i.e. the decoding is successful, at this time, the processing unit 210 may control the image acquisition module 100 to continue to operate in the open field illumination mode; if the barcode information cannot be obtained from the acquired image signal, i.e. the decoding fails, the processing unit 210 controls the dark field illumination unit 130 to operate, i.e. enter the dark field illumination mode. In the dark field illumination mode, the image capturing unit 110 transmits the captured image signal to the second signal input/output end 210A through the first signal input/output end 110A, and the processing unit 210 decodes the image signal, if the barcode information can be obtained from the captured image signal, the decoding is successful. Through the control to different illumination modes, can realize the discernment to various different grade type bar codes, increase the range of application of intelligent illumination bar code scanner. For example, when the target barcode is a common printed barcode, the bright field illumination unit 120 is turned on, so that a barcode picture with good illumination and high contrast can be obtained; when the target barcode is a barcode with a low contrast, such as laser engraving or chemical etching, the bright field illumination unit 120 is turned off, and the dark field illumination unit 130 is turned on. In the case of dark field illumination, the image capture unit 110 can obtain a barcode image with higher contrast and more distinct barcode edges than bright field illumination.

Further, the open field illumination unit 120 may be located on a side of the dark field illumination unit 130 close to the image capturing unit 110, that is, the open field illumination unit 120 is located near a main optical axis of the image capturing unit 110, and the dark field illumination unit 130 is located on a side far from the main optical axis of the image capturing unit 110, so as to ensure that the open field illumination unit 120 and the dark field illumination unit 130 are arranged in a staggered manner, and the open field illumination unit 120 and the dark field illumination unit 130 do not interfere with each other during the working period.

Further, the image acquisition unit 110 may be a camera, and the processing unit 210 may be a microprocessor, and is configured to acquire a signal instruction, execute the signal instruction, exchange information with an external memory and a logic component, and the like, so as to decode and analyze the acquired barcode information and generate a corresponding control instruction.

To sum up, the intelligent illumination barcode scanner provided by the embodiment of the present invention is configured with the image acquisition module including the open field illumination unit and the dark field illumination unit, and the processing unit electrically connected to the open field illumination unit and the dark field illumination unit, respectively, and the processing unit controls the open field illumination unit or the dark field illumination unit to operate according to the received image signal, so as to facilitate the image acquisition module to acquire clearer barcode information, facilitate the intelligent illumination barcode scanner to scan and decode various different types of barcodes, increase the application occasions of the intelligent illumination barcode scanner, improve the universality of the intelligent illumination barcode scanner, improve the user experience, and improve the market competitiveness of the intelligent illumination barcode scanner.

On the basis of the above embodiment, optionally, the first control signal output by the first control signal output terminal 210B includes a first duty ratio control signal; the second control signal output by the second control signal output terminal 210C includes a second duty control signal.

The signals output by the first control signal output end 210B and the second control signal output end 210C each include a duty ratio control signal. The duty control signal means that a signal capable of controlling the operation unit is not output during the output of one control signal. In the intelligent illumination barcode scanner provided in the embodiment of the present invention, first, in the bright field illumination mode, the image acquisition unit 110 electrically connects the acquired barcode information to the second signal input/output end 210A through the first signal input/output end 110A, and transmits the barcode information to the processing unit 210. The processing unit 210 decodes the bar code information, when the decoding fails, the first control signal output end 210B outputs a first duty ratio control signal, the bright field lighting unit 120 does not work, the second control signal output end 210C outputs a second control signal, and the dark field lighting module 130 works; if the decoding is successful, the first control signal output end 210B outputs a first control signal, the bright field illumination unit 120 works, the second control signal output end 210C outputs a second duty ratio control signal, and the dark field illumination unit 130 does not need to work, so that the processing unit 210 adjusts the working states of the bright field illumination unit 120 and the dark field illumination unit 130.

With continued reference to fig. 1, in the intelligent illumination barcode scanner provided in the embodiment of the present invention, the decoding module 200 further includes an interface circuit 220;

the processing unit 210 further includes a decoded signal output end 210D, the interface circuit 220 includes a decoded signal receiving end 220A, and the decoded signal output end 210D is electrically connected to the decoded signal receiving end 220A; the interface circuit 220 is used to transmit the decoded signal to the terminal 300.

The interface circuit is a bridge for information interaction between the computer and the peripheral equipment. The decoding module 200 further comprises an interface circuit 220, and the interface circuit 220 comprises a decoding signal receiving terminal 220A. The decoded signal output end 210D is electrically connected to the decoded signal receiving end 220A, so as to transmit the barcode information decoded by the processing unit 210 to the interface circuit 220, and the interface circuit 220 transmits the barcode data acquired by decoding to the terminal 300, so as to implement information interaction.

Fig. 2 is a schematic structural diagram of a dark-field illumination unit according to an embodiment of the present invention, in which the dark-field illumination unit 130 at least includes a first light-emitting element group 131 and a second light-emitting element group 132, the first light-emitting element group 131 includes at least one first light-emitting element, and the second light-emitting element group 132 includes at least one second light-emitting element; the first light-emitting element group 131 and the second light-emitting element group 132 are disposed at different positions;

the second control signal output 210C includes at least a second control signal output 210C1 and a second diethyl control output 210C 2;

the first light emitting element group 131 includes a second control signal receiving terminal 131A, and the second light emitting element group 132 includes a second control signal receiving terminal 132A;

the second control signal output end 210C1 is electrically connected to the second control signal receiving end 131A, and the second control signal output end 210C2 is electrically connected to the second control signal receiving end 132A.

Here, the dark field illumination unit 130 includes a first light emitting element group 131 and a second light emitting element group 132, and the light emitting elements may be light emitting diodes to provide brightness for the dark field illumination mode. The first light emitting element group 131 and the second light emitting element group 132 are disposed at different positions around the image capturing unit 110, which may be above, below, left, and right of the image capturing unit 110, and the specific disposition positions of the light emitting element groups are not limited in the embodiments of the present invention.

Specifically, the first light emitting element group 131 may include a second control signal receiving terminal 131A, and the second light emitting element group 132 may include a second control signal receiving terminal 132A. The second control signal output 210C of the processing unit 210 includes at least a second control signal output 210C1 and a second diethyl control signal output 210C 2. The second control signal output end 210C1 is electrically connected to the second control signal receiving end 131A, the dark field illumination mode under illumination of the first light emitting element group 131 is turned on, the processing unit 210 decodes the image signal acquired by the image acquisition unit 110, if the barcode information can be obtained from the acquired image signal, that is, the decoding is successful, at this time, the processing unit 210 can control the image acquisition module 100 to continuously work in the dark field illumination mode provided by the first light emitting element group 131; if the barcode information cannot be obtained from the acquired image signal, that is, if the decoding fails, it indicates that the light emitting position and/or the light emitting color of the first light emitting element group 131 do not adapt to the barcode to be scanned, and the light emitting element group is replaced; the second-minor control signal output end 210C2 is electrically connected to the second-minor control signal receiving end 132A, the dark-field illumination mode under illumination of the second light-emitting element group 132 is turned on, the processing unit 210 decodes the image signal collected by the image collecting unit 110, and if the image signal collected can obtain the barcode information, the decoding is successful.

Further, for laser engraving, chemical etching or the like of the bar code, dark field illumination in different directions can obtain a picture with clear edges of all or part of the bar code. If the dark field illumination in a single direction cannot obtain all clear edges of the bar code, images in multiple directions can be fused into an image containing the edges of the complete bar code, and then decoding is carried out. For example, a plurality of light-emitting element groups can be sequentially turned on to acquire image information under illumination of different light-emitting elements in a time-sharing manner, and then image fusion is performed to acquire an image containing a complete barcode edge; the plurality of light-emitting element groups can be simultaneously turned on, and image information under illumination of different light-emitting element groups can be simultaneously acquired, namely an image containing a complete bar code edge is acquired.

According to the intelligent illumination bar code scanner provided by the embodiment of the utility model, the dark field illumination unit is further arranged to comprise the light-emitting units at different arrangement positions, so that different bar codes can be identified, the application field of the intelligent illumination bar code scanner is expanded, and the universality of the intelligent illumination bar code scanner is improved.

With continued reference to fig. 2, wherein the first light emitting element group 131 includes a plurality of first light emitting elements, the first light emitting elements including a first white light emitting element, a first red light emitting element, and a first blue light emitting element; the second light emitting element group 132 includes a plurality of second light emitting elements including a second white light emitting element, a second red light emitting element, and a second blue light emitting element. The first light emitting element group 131 may include a plurality of first light emitting elements, for example, a first white light emitting element, a first red light emitting element, and a first blue light emitting element. The second light emitting element group 132 includes a plurality of second light emitting elements. The second light emitting element includes a second white light emitting element, a second red light emitting element, and a second blue light emitting element. The light emitting elements with different light emitting colors in different light emitting element groups can be controlled to emit light according to different lighting requirements, so that the lighting scene of the dark field lighting unit 130 is further enriched, the lighting range and the lighting color gamut of the dark field lighting unit 130 are increased, the application field of the intelligent lighting bar code scanner is further expanded, and the universality of the intelligent lighting bar code scanner is improved.

Specifically, for barcodes of different materials and colors, the contrast of images obtained by illumination of different colors is very different. For example, laser engraved barcodes on green build-up solder layers printed circuit boards, images obtained with white light illumination have very low contrast between the barcode and the background, whereas better contrast is generally obtained if red illumination is used. Therefore, by arranging the first light emitting element group 131 and the second light emitting element group 132 to include a plurality of light emitting elements of different colors, the decoding success probability can be improved, and the application field of the intelligent illumination barcode scanner can be enlarged. Furthermore, the white light has a plurality of wavebands, the wavelength of red light is the longest, and the wavelength of blue light is the shortest, so that by arranging each light-emitting element group to include a white light-emitting element, a red light-emitting element and a blue light-emitting element, the scanning and decoding requirements of different types of barcodes can be met to the greatest extent, and the decoding success probability is improved.

It should be noted that the color of the light emitting element can also be adjusted according to the scanning object, and is not limited to the above-mentioned white, red and blue, and the embodiment of the present invention is not limited thereto.

On the basis of the foregoing embodiment, fig. 3 is a schematic structural diagram of an image acquisition unit according to an embodiment of the present invention, and as shown in fig. 3, the image acquisition module 100 in the intelligent illumination barcode scanner according to the embodiment of the present invention may further include a photoelectric sensor 140;

the photoelectric sensor 140 includes a third signal input/output end 140A, the processing unit 210 further includes a fourth signal input/output end 210E, and the third signal input/output end 140A is electrically connected to the fourth signal input/output end 210E;

the processing unit 210 is also used for controlling the operation states of the open field illumination unit 120 and the dark field illumination unit 130 according to the received signal.

The image capturing module 100 further includes a photo sensor 140, which is a sensor using a photo element as a detecting element. It first converts the measured changes into changes in the optical signal and then further converts the optical signal into an electrical signal by means of an opto-electronic element. The photoelectric sensor 140 includes a third signal input/output end 140A, the processing unit 210 includes a fourth signal input/output end 210E, the third signal input/output end 140A is electrically connected to the fourth signal input/output end 210E, so that the photoelectric sensor 140 transmits the ambient light signal to the processing unit 210, and the processing unit 210 outputs a control signal to the photoelectric sensor according to the provided ambient light signal, so as to adjust the operating states of the open and dark field lighting unit 120 and the dark field lighting unit 130. Through the analysis of the ambient brightness by the photoelectric sensor 140, the processing unit 210 can rapidly adjust the bright field and dark field working states, and the decoding efficiency is accelerated. For example, the ambient light information can also be obtained by acquiring an image through a camera in the image acquisition unit, for example, when the camera works for 30 frames, the time for acquiring an image exceeds 30 milliseconds, and the ambient light information can be obtained within 1 microsecond through the photoelectric sensor 140, so that the ambient light information acquisition speed is increased by 4 orders of magnitude, the decoding efficiency is sufficiently increased, and the working efficiency of the barcode scanning simulator is improved.

Continuing to refer to fig. 3, image capture module 100 may further include a light directing unit 150;

the light directing unit 150 is configured to project the image capturing identifier within a field of view of the image capturing unit, so that the image capturing unit 100 captures an image according to the image capturing identifier.

The light directing unit 150 included in the image capturing module 100 may project an image capturing identifier near the image capturing unit 110, so as to help the image capturing unit 110 to find the barcode position more quickly and accurately, and improve the barcode scanning efficiency. Further, the image capturing mark may be a circular light spot, a square light spot, a line segment, or a cross-shaped light spot, and the embodiment of the present invention is not limited thereto.

Continuing to refer to fig. 3, image capture unit 110 may also include a zoom image capture unit.

The image capturing unit 110 may be a zoom image capturing unit, for example, a device capable of adjusting a focal length, such as a voice coil motor, is installed in a conventional image capturing unit. The zooming image acquisition unit can be quickly focused, the working depth of field of the image acquisition unit 110 is expanded, long-distance and short-distance bar codes can be clearly scanned, the scanning capability of the intelligent illumination bar code scanner is provided, and the decoding efficiency is improved.

On the basis of the foregoing embodiment, fig. 4 is a schematic structural diagram of a processing unit according to an embodiment of the present invention, where the processing unit 210 in the intelligent illumination barcode scanner according to the embodiment of the present invention includes a code reading key 211 and a work instruction module 212;

the code reading key 211 comprises a code reading instruction output end 211A, the processing unit 210 comprises a code reading instruction receiving end 210F, and the code reading instruction output end 211A is electrically connected with the code reading instruction receiving end 210F;

the working indication module 212 includes a working state signal receiving end 212A, the processing unit 210 includes a working state signal output end 210G, and the working state signal receiving end 212A is electrically connected to the working state signal output end 210G; the operation indication module 212 is used to indicate the operation status of the intelligent illumination barcode scanner.

The code reading button 211 is a device for reading a code reading instruction of a user. The code reading button 211 comprises a code reading instruction output end 211A, and the processing unit 210 comprises a code reading designation receiving end 210F. The code reading instruction output end 211A is electrically connected to the code reading designation receiving end 210F, and the processing unit 210 can control the image acquisition module 100 to perform image acquisition according to the code reading instruction received by the code reading key 211, for example, when the user presses the code reading key 211, the code reading instruction output end 211A can send a level signal to the processing unit 210, thereby realizing interaction between a person and a device.

The operation indication module 212 may prompt the user of the operation status of the scanner, and the operation indication module 212 includes an operation status signal receiving end 212A, and the processing unit 210 includes an operation status signal output end 210G. The working state signal receiving end 212A is electrically connected to the working state signal output end 210G, and the processing unit 210 can prompt the user of the working state of the intelligent illumination barcode scanner, for example, the scanning is successful or the system reports an error, so that the user can pay attention to the state of the scanner in time. Specifically, the work indication module 212 may include a buzzer and two indication LEDs with different light emitting colors, when the scanning is successful or the system reports different work states incorrectly, the buzzer frequency may be different, and the indication LEDs with different light emitting colors may emit light respectively. For example, when the scanning is successful, the buzzer emits a stable prompt sound with lower frequency and longer duration, and the green LED emits light; when the system reports errors, the buzzer buzzes to emit emergency sound with high frequency and short duration, and the red LED emits light.

Optionally, the embodiment of the utility model provides a processing unit can also include storage module in the intelligence illumination bar code scanner, and storage module is used for information and the working data that the storage user set up, including user setting information output and working data receiving terminal, processing unit includes user setting information receiving terminal and working data output. The user setting information output end is electrically connected with the user setting information receiving end to realize the data storage of user setting; the working data receiving end is electrically connected with the working data output end, so that the working data of the scanner can be stored, and the next scanner can be rapidly operated for storing the user setting data and the historical working data.

Optionally, the embodiment of the utility model provides a processing unit can also include power module in the intelligent illumination bar code scanner, and power module includes the power supply signal output part, and processing unit includes the power supply signal receiving terminal. The power supply signal output end is electrically connected with the power supply signal receiving end, so that the power supply module supplies electric energy to the processing unit 210, and the normal work of the scanner is ensured.

With continued reference to fig. 4, the decoded signal output 210D of the intelligent illumination barcode scanner provided by the embodiment of the present invention includes a USB output 210D1 and a serial output 210D 2;

the decoded signal receiver 220A comprises a USB receiver 220A1 and a serial receiver 220A 2.

The decoding signal output end 210D comprises a USB output end 210D1 and a serial port output end 210D2, the decoding signal receiving end 220A comprises a USB receiving end 220A1 and a serial port receiving end 220A2, the USB output end 210D1 is electrically connected with the USB receiving end 220A1, the serial port output end 210D2 is electrically connected with the serial port receiving end 220A2, the decoding signal receiving end 220A is connected to the processing unit 210 through the interface circuit 220, and the decoding signal output end 210D is connected with peripheral equipment. The intelligent illumination bar code scanner provided by the embodiment of the utility model can be adapted to various interfaces of different types.

It is to be noted that the foregoing is only illustrative of the preferred embodiments of the present invention and the technical principles employed. It will be understood by those skilled in the art that the present invention is not limited to the particular embodiments illustrated herein, but is capable of various obvious modifications, rearrangements, combinations and substitutions as will now become apparent to those skilled in the art without departing from the scope of the utility model. Therefore, although the present invention has been described in greater detail by the above embodiments, the present invention is not limited to the above embodiments, and may include other equivalent embodiments without departing from the spirit of the present invention, and the scope of the present invention is determined by the scope of the appended claims.

It is to be noted that the foregoing is only illustrative of the preferred embodiments of the present invention and the technical principles employed. Those skilled in the art will appreciate that the present invention is not limited to the specific embodiments described herein, and that the features of the various embodiments of the utility model may be partially or fully coupled to each other or combined and may be capable of cooperating with each other in various ways and of being technically driven. Numerous variations, rearrangements, combinations, and substitutions will now become apparent to those skilled in the art without departing from the scope of the utility model. Therefore, although the present invention has been described in greater detail by the above embodiments, the present invention is not limited to the above embodiments, and may include other equivalent embodiments without departing from the spirit of the present invention, and the scope of the present invention is determined by the scope of the appended claims.

Claims (10)

1. An intelligent illumination bar code scanner is characterized by comprising an image acquisition module and a decoding module;

the image acquisition module comprises an image acquisition unit, a open field illumination unit and a dark field illumination unit;

the decoding module comprises a processing unit;

the image acquisition unit comprises a first signal input and output end, the open field illumination unit comprises a first control signal receiving end, the dark field illumination unit comprises a second control signal receiving end, and the processing unit comprises a second signal input and output end, a first control signal output end and a second control signal output end;

the first signal input-output end is electrically connected with the second signal input-output end, the first control signal receiving end is electrically connected with the first control signal output end, and the second control signal receiving end is electrically connected with the second control signal output end; the processing unit is used for controlling the working states of the open-field lighting unit and the dark-field lighting unit according to the received image signals.

2. The intelligent illuminated barcode scanner of claim 1, wherein the decode module further comprises an interface circuit;

the processing unit further comprises a decoding signal output end, the interface circuit comprises a decoding signal receiving end, and the decoding signal output end is electrically connected with the decoding signal receiving end; the interface circuit is used for sending the decoding signal to the terminal.

3. The intelligent illumination barcode scanner of claim 1, wherein the dark field illumination unit comprises at least a first light emitting element group and a second light emitting element group, the first light emitting element group comprising at least one first light emitting element, the second light emitting element group comprising at least one second light emitting element; the first light emitting element group and the second light emitting element group are arranged at different positions;

the second control signal output end at least comprises a second control signal output end and a second diethyl control signal output end;

the first light-emitting element group comprises a second control signal receiving end, and the second light-emitting element group comprises a second diethyl control signal receiving end;

the second control signal output end is electrically connected with the second control signal receiving end, and the second diethyl control signal output end is electrically connected with the second diethyl control signal receiving end.

4. The intelligent illuminated barcode scanner of claim 3, wherein the first group of light emitting elements comprises a plurality of first light emitting elements, the first light emitting elements comprising a first white light emitting element, a first red light emitting element, and a first blue light emitting element;

the second light emitting element group includes a plurality of second light emitting elements including a second white light emitting element, a second red light emitting element, and a second blue light emitting element.

5. The intelligent illuminated barcode scanner of claim 1, wherein the image acquisition module further comprises a photosensor;

the photoelectric sensor comprises a third signal input and output end, the processing unit further comprises a fourth signal input and output end, and the third signal input and output end is electrically connected with the fourth signal input and output end;

the processing unit is also used for controlling the working states of the open-field lighting unit and the dark-field lighting unit according to the received signals.

6. The intelligent illuminated barcode scanner of claim 1, wherein the image acquisition module comprises a light directing unit;

the light ray directing unit is used for projecting an image acquisition identifier in a field range of the image acquisition unit so as to enable the image acquisition unit to acquire images according to the image acquisition identifier.

7. The intelligent illuminated barcode scanner of claim 1, wherein the image acquisition unit comprises a zoom image acquisition unit.

8. The intelligent illuminated barcode scanner of claim 1, further comprising a code reading button and a work indication module;

the code reading key comprises a code reading instruction output end, the processing unit comprises a code reading appointed receiving end, and the code reading instruction output end is electrically connected with the code reading instruction receiving end;

the working indication module comprises a working state signal receiving end, the processing unit comprises a working state signal output end, and the working state signal receiving end is electrically connected with the working state signal output end; the work indication module is used for indicating the working state of the intelligent illumination bar code scanner.

9. The intelligent illuminated barcode scanner of claim 1, wherein the first control signal output by the first control signal output comprises a first duty cycle control signal;

the second control signal output by the second control signal output end comprises a second duty ratio control signal.

10. The intelligent illuminated barcode scanner of claim 2, wherein the decoded signal output comprises a USB output and a serial output;

the decoding signal receiving end comprises a USB receiving end and a serial port receiving end.

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