Background technology
Two-dimension code is the chequered with black and white graphic recording data symbol information that (on the two-dimensional directional) distributes on the plane according to certain rules with certain specific geometric figure; On coding, utilize " 0 ", the notion of " 1 " bit stream that constitutes the computer-internal logical foundations dexterously, use several and the corresponding geometrical body of scale-of-two to represent the literal numerical information, handle automatically with realization information by image input device or photoelectric scanning device automatically identifying and reading.
Characteristics such as two-dimensional bar code has that storage capacity is big, confidentiality is high, tracking property height, anti-damage property is strong, redundant is big, cost is cheap, these characteristics are specially adapted to aspects such as list, safe and secret, tracking, license, stock taking, data redundant; Can be widely used in fields such as logistics, storage.
The view data that existing two-dimensional code data collector collects, all need by view data being carried out the extraction of binary matrix data, the proof data of extracting are passed to code translator by communication module to be deciphered, therefore, in the time can not taking the exact image data, can there be a lot of misdatas, causes the two-dimension code discrimination low, can not adapt to high efficiency work rhythm.
The utility model content
The purpose of this utility model is to provide a kind of portable hand-held two-dimension code data acquisition unit that can accurately collect the image in 2 D code data, solves the defective that prior art exists.
For achieving the above object, the utility model adopts following technical scheme:
A kind of hand-held two-dimensional bar code data acquisition unit comprises handle, and described handle is provided with a cavity; The image collecting device shell that is connected with the handle integral type is arranged at the image collecting device in the image collecting device shell, trigger switch, communication module, battery compartment and demoder, and described image collecting device is connected with decoder signal by communication module; Described communication module is arranged at the cavity in the handle, and trigger switch is arranged on the handle, is electrically connected with image collecting device; Described battery compartment is arranged at handle rear end; Described image collecting device comprises MCU, image capture module, view data identification module, image processing module and data memory module.
Preferred scheme is: also comprise the data message feedback assembly, described image collecting device also comprises the data message feedback module, and described data message feedback assembly is electrically connected with the data message feedback module.
Preferred scheme is: described image capture module comprises camera module and lighting module.
Preferred scheme is: described camera module comprises lens assembly, sensor module and photoelectric conversion module, and described sensor module is COMS sensor or ccd sensor, and described lens assembly is 2,000,000-5,000,000 Pixel-level optical lens.
Preferred scheme is: described data message feedback assembly is light-emitting device or sound-producing device.
Preferred scheme is: described demoder is a peacekeeping two-dimension code data parsing Campatible demoder.
Preferred scheme is: also comprise the direct supply charging module that is arranged in the handle cavity.
The utility model compared with prior art has following beneficial effect:
The utility model judges by integrated image data identification module in image collecting device whether the view data of image capture module collection is discernible view data, if then it is delivered to image processing module and carries out the 2-D data extraction; If not, then feed back to the data message feedback assembly by the data message feedback module rapidly, save operation time; Simultaneously, adopt high-pixel optical lens and high sensitivity lens sensors, effectively guarantee the view data accuracy of gathering at image capture module described in the utility model.Simultaneously, also be integrated with lighting module, can guarantee under environment with dark light, to carry out reasonable light filling, guarantee the accuracy of image data acquiring at image capture module.
Embodiment
Below in conjunction with the drawings and specific embodiments the utility model is described in further details.
The described hand-held two-dimensional bar code of present embodiment data acquisition unit comprises handle, and described handle is provided with a cavity; The image collecting device shell that is connected with the handle integral type is arranged at the image collecting device in the image collecting device shell, trigger switch, communication module, data message feedback assembly, battery compartment and demoder.
As shown in Figure 1, describedimage collecting device 1 is electrically connected with data message feedback assembly 4, and simultaneously, image collecting device is connected withdemoder 3 signals bycommunication module 2.
Described communication module is arranged at the cavity in the handle, and trigger switch is arranged on the handle, is electrically connected with image collecting device; Described battery compartment is arranged at handle rear end; Be provided with the direct supply charging module in the handle cavity, can recharge environmental protection battery.
As shown in Figure 2, image collecting device comprises MCU, image capture module, view data identification module, image processing module, data memory module and data message feedback module.The data message feedback assembly is electrically connected with the data message feedback module.
Described image capture module comprises camera module and lighting module.
Described camera module comprises lens assembly, sensor module and photoelectric conversion module, and described sensor module is COMS sensor or ccd sensor, and described lens assembly is preferably 2,000,000-5,000,000 Pixel-level optical lens; Also can be to be lower than 2,000,000 pixels (as 300,000 pixels), the view data accuracy of collection can be poor slightly; Or be higher than 5,000,000 pixels (as 8,000,000 pixels), and acquisition of image data tends to exist committed memory more, and processing speed can be slack-off slightly.
Described data message feedback assembly is light-emitting device or sound-producing device.In the present embodiment, be preferably sound-producing device, if Data Matching in data and the database, then " toot " gets final product for one, as do not match, then prompting " ticking " three, with the handled easily personnel whether further confirm owing to operation reason (complete bar code not being scanned as having) or since bar code record data itself do not deposit in the database.Present embodiment also can adopt multi-colored led lamp as feedback assembly, as the data coupling, then gives a green light; Do not match as data, then show red light.Natural, present embodiment, the also technical scheme that can adopt light-emitting device and sound-producing device and deposit.
Two-dimension code image to be verified is at first discerned by the view data identification module, but is judged according to sharpness and degree of tilt critical angle whether collect two-dimensional image data is recognition data after gathering through image capture module.If judge it is discernible, then be transferred to the extraction that image processing module carries out binary matrix data; If judge it is unrecognizable, then be transferred to the data message feedback module, send the unmatched prompting of data by the data message feedback assembly.
In the present embodiment, demoder can be installed in embedded system, perhaps terminal such as computing machine or smart mobile phone, preferably the Campatible demoder of a compatible peacekeeping two-dimension code data parsing simultaneously.
In the present embodiment, communication module can adopt various ways, as in the communication interface modes such as RFID communication interface, USB communication interface, IEEE1394 fire-wire interfaces, wireless communication interface one or several and deposit.
Trigger switch is preferably key switch, still, in the present embodiment, also trigger switch can be designed to radio remote control switch or audio-switch.The preferred LED energy-saving bulb of lighting module also can be an infraluminescence equipment; Can under the environment of insufficient light, carry out light filling, guarantee to collect the quality of two-dimension code image data.
The utility model judges by integrated image data identification module in image collecting device whether the view data of image capture module collection is discernible view data, if then it is delivered to image processing module and carries out the 2-D data extraction; If not, then feed back to the data message feedback assembly by the data message feedback module rapidly, save operation time; Simultaneously, adopt high-pixel optical lens and high sensitivity lens sensors, effectively guarantee the view data accuracy of gathering at image capture module described in the utility model.Simultaneously, also be integrated with lighting module, can guarantee under environment with dark light, to carry out reasonable light filling, guarantee the accuracy of image data acquiring at image capture module.
Above content be in conjunction with concrete preferred implementation to further describing that the utility model is done, can not assert that concrete enforcement of the present utility model is confined to these explanations.For the utility model person of an ordinary skill in the technical field, under the prerequisite that does not break away from the utility model design, can also make some simple deduction or replace, all should be considered as belonging to protection domain of the present utility model.