CN201927041U

CN201927041U - Device for acquiring bar code images

Info

Publication number: CN201927041U
Application number: CN2010202132464U
Authority: CN
Inventors: 邱有森; 孙亚力; 刘荣生; 刘继军
Original assignee: Fujian Newland Computer Co Ltd
Current assignee: Fujian Newland Computer Co Ltd
Priority date: 2010-06-01
Filing date: 2010-06-01
Publication date: 2011-08-10
Anticipated expiration: 2020-06-01

Abstract

The utility model discloses a device for acquiring bar code images. The device comprises a shooting unit and a connection unit connected therewith. Compared with the prior art, the device is simple and practical, and is suitable for acquiring various bar code images with larger breadths.

Description

A kind of deriving means of bar code image

[technical field]

The utility model relates to a kind of deriving means of bar code image, the deriving means of the bar code image that particularly a kind of breadth span is bigger.

[background technology]

Barcode technology is an emerging technology that integrates coding, printing, identification, data acquisition and processing (DAP) that grows up on computer technology and infotech basis.Barcode technology is because its identification is quick, accurate, reliable and low cost and other advantages, be widely used in fields such as commerce, taking care of books, storage, post and telecommunications, traffic and Industry Control, and certainly will in " Internet of Things " that rise gradually used, bring into play great function.

The bar code that is widely used at present comprises bar code and two-dimensional bar code.Wherein, bar code claims linear bar code to be made up of a plurality of " bars " that are arranged in parallel and " sky " unit again, and bar code information is expressed by the different in width and the position of bar, dummy cell.Two-dimensional bar code is by black forming from alternate particular geometric figure of distributing on two-dimensional directional according to certain rules, its can be on two-dimensional directional expressing information.Two-dimensional bar code can be divided into stack two-dimensional bar code and matrix two-dimensional barcode.The stack two-dimensional bar code is that the bar code by the multirow cutting back piles up and forms, and representational stack two-dimensional bar code comprises PDF417, Code 49, Code16K etc.Matrix two-dimensional barcode is made up of black, the white module that is distributed in by pre-defined rule in the matrix, and representational matrix two-dimensional barcode comprises Code one, Aztec, Data Matrix, OR sign indicating number etc.

Along with the continuous development of barcode technology, the entrained quantity of information of various bar code images is increasing, and the breadth span of bar code image also will increase thereupon, and therefore, the development of barcode technology is obtained technology to bar code image and also had higher requirement.

In the prior art, in order to obtain a width of cloth bar code image, generally be that the mode that adopts disposable integral to take this bar code image is obtained, if but the bar code image breadth is bigger, then be difficult to again to obtain the view picture bar code image with the mode of disposable shooting, even if can obtain the view picture bar code image, thereby the bar code image that is obtained also can increase the difficulty of decoding because of image density is too high, and then influences the accuracy of bar code decoding.Therefore, demand is accurately and reliably a kind of and be applicable to the bar code image deriving means that the breadth span is bigger.

[summary of the invention]

Obtain the problem of difficulty in order to solve in the prior art owing to bar code image breadth span causes bar code image greatly, the utility model provides a kind of deriving means of bar code image.

The utility model solves the problems of the technologies described above the deriving means that the technical scheme of being taked provides a kind of bar code image, and the deriving means of this bar code image comprises:

Take the unit;

Be connected the unit, be connected with the shooting unit.

Compare with present technology, the deriving means of bar code image provided by the utility model is simple and practical, is applicable to obtain the bigger bar code image of various breadth spans.

[description of drawings]

Can with reference to the accompanying drawings and by example the utility model be described more specifically, in the accompanying drawings:

Fig. 1 is the structural representation according to the deriving means of the bar code image of the utility model one embodiment; And

Fig. 2 is the shooting synoptic diagram according to the deriving means of the bar code image of the utility model one embodiment.

[embodiment]

Below in conjunction with drawings and Examples the utility model is elaborated.

See also Fig. 1, Fig. 1 is the structural representation according to the deriving means of the bar code image of the utility model one embodiment.The deriving means of bar code image of the present utility model comprises to be taken unit 10 and is connected unit 20.Wherein, take unit 10 and be used for bar code image is connected shooting, up to all barcode fragment of obtaining this bar code image; Be connected with shooting unit 10 and be connected unit 20, be used for these all barcode fragment couplings are connected, thereby obtain complete bar code image.

Briefly, whether bar code image deriving means of the present utility model mainly to be based on captured bar code image be that complete bar code image is divided into two kinds of situations and carries out:

In first kind of situation, captured bar code image is complete bar code image, and it can be directly used in decoding, and therefore, the work of obtaining of bar code image can finish;

Under second kind of situation, captured bar code image is not complete bar code image, then need to proceed to be connected and take, up to all barcode fragment of obtaining bar code image, according to the edge feature information of each barcode fragment all bar chips are mated linking again, thereby obtain complete bar code image.

Next, the existing example that is retrieved as of the utility model with the bar code image, set forth embodiment of the present utility model, yet those skilled in the art can expect this method is applied to obtaining of other all kinds bar code images the various two-dimensional bar codes of enumerating more than for example fully.

Particularly, see also Fig. 2, Fig. 2 is the shooting synoptic diagram according to the deriving means of the bar code image of the utility model one embodiment.

As everyone knows, the bar code image is rearranged by " bar " and " sky " one by one, and bar code information relies on the different in width and the position of bar, dummy cell to transmit, and bar code is wide more, and the bar of containing, dummy cell are many more, and quantity of information is big more.Any one complete bar code all is made up of the character of the clear area of both sides, initial symbol (some the skies in left side), data character, check character (optional), full stop (some the skies in right side) and confession people identification usually.

Bar code image as shown in Figure 2 supposes that this bar code image is long, is not easy to disposable complete shooting and obtains.Therefore, adopt device of the present utility model, utilize shooting unit 10 to begin to take from the initial symbol of this bar code image, promptly photograph barcode fragment a-a ', obviously, barcode fragment a-a ' has comprised the initial symbol of this bar code image, but the full stop that does not comprise this bar code image, therefore, need proceed to move to be connected and take, promptly continue to take barcode fragment b-b ' and barcode fragment c-c ', by linking unit 20 some skies of barcode fragment a-a ', b-b ', c-c ' end wide mated linking again, can obtain complete bar code image.

What deserves to be mentioned is, in Fig. 2, captured barcode fragment a-a ', b-b ', c-c ' have certain overlapping region, for bar code, the linking of barcode fragment is mainly determined according to the bar of adjacent strip chip segment overlapping region, the matching degree of empty width, for two-dimensional bar code, then can utilize the color gray scale of each module in the bar code image to mate linking.

Certainly, bar code is connected the mode of taking and is not limited to illustrated horizontal direction, those skilled in the art understand easily, except being connected in the horizontal direction the shooting, can also be connected shooting by in the vertical direction, also can be connected shooting in the horizontal direction with on the vertical direction simultaneously.

In sum, one of ordinary skill in the art will readily recognize that the bar code image deriving means that provides by the utility model, can accurately obtain the bigger bar code image of any breadth span.

In the above-described embodiments, only the utility model has been carried out exemplary description, but those skilled in the art can carry out various modifications to the utility model after reading present patent application under the situation that does not break away from spirit and scope of the present utility model.

Claims

1. the deriving means of a bar code image is characterized in that, the deriving means of described bar code image comprises:

Take the unit;

Be connected the unit, be connected with described shooting unit.