CN104933384A - Wireless bar code recognition and reading equipment - Google Patents
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Abstract
The invention provides a data transmission control method and a system for wireless bar code recognition and reading equipment. Firstly, whether a wireless connection is established is determined, and the intensity value of wireless connection signals is sampled if the wireless connection is established. After a bar code is successfully decoded, the intensity value of the wireless connection signals is sampled again, whether the wireless bar code recognition and reading equipment and a host computer are close to each other is determined, a first setting threshold and a second setting threshold are set according to the determination result, the sampling signals and the corresponding thresholds are determined, and data decoding via the wireless transmission bar code or the storage of bar code decoding data in a local storage device is selected. Two different thresholds are set according to the conditions of the wireless bar code recognition and reading equipment and the host computer from the near to the distant and from the distant to the near, frequent switching near the thresholds can be effectively avoided, the influence on the transmission validity is prevented, the bar code decoding data is stored in the local storage device when the transmission is unstable, and data loss is prevented.
Description
Technical field
The present invention relates to a kind of wireless device, relate in particular to a kind of wireless bar code recognizing apparatus.
Background technology
Bar code (abbreviation bar code) can be divided into bar code and two-dimensional bar code, the mark that bar code is made up of one group of regularly arranged bar, sky and corresponding character, " bar " refers to the part lower to light reflectance, " sky " refers to the part higher to light reflectance, the information that the data representation that these and sky form is certain.Two-dimensional bar code is the barcode technology of a new generation of the chequered with black and white rectangle square formation record data symbol information distributed in plane (on two-dimensional directional) according to certain rules with specific geometric figure; Two-dimensional bar code can be divided into stack two-dimensional bar code and matrix two-dimensional barcode.Stack two-dimensional bar code form is form (as PDF417 bar code) by the bar code of multirow cutting back is stacking; Matrix two-dimensional barcode forms with a matrix type, matrix respective element position represents binary one with " point ", represents binary zero with " sky ", rearranges code (as QR code) by " point " and " sky ".It is large that Quick Response Code has memory capacity, comprises abundant information, and need special analysis mode, have very strong confidentiality.
In daily life and commercial Application, the use of bar code is more and more extensive, such as: the user demand to bar code of retail trade, logistic industry, financial industry is increasing.Contacting maximum in life is in supermarket, and when choosing commodity, the bar code that cashier itself is carried by bar code reader scans commodity, background devices can realize the confirmation of commodity, the calculating of price.Bar code recognizing apparatus is applied in storage center, significantly improves the efficiency that keeper makes an inventory, and keeper only need scan the bar code on kinds of goods surface, and bar code recognizing apparatus decoding bar code, can obtain inventory information, and realize record, replace traditional hand-kept.Hand-kept has the larger bit error rate, and uses bar code, and the bit error rate will be made greatly to reduce.Along with developing rapidly of logistics, the dependence of people to net purchase is more and more stronger, usual people electric business (as store, Jingdone district, Taobao) webpage is chosen and admires article, the Quick Response Code that one comprises sequence information can add on item parcels in businessman, along with in logistics transportation process, every logistics node, staff can carry out scanning recognition decoding with intelligent hand-held terminal (as the New World, Fujian identifies the MT80 portable data collector of company automatically) to bar code, by decoded bar code by Internet Transmission to back-end server, back-end server generates can for the logistics information of customer inquiries.Wireless bar code recognizing apparatus, is subject to the favor of user just day by day as the barcode device that a kind of actionradius is larger.Particularly, warehouse stock counting, logistics transportation is just growing to the demand of wireless bar code equipment.Existing wireless bar code equipment, mainly utilizes mobile data network (2G/3G/4G and subsequent network evolution), Wi-Fi, bluetooth and zigbee (purple honeybee) agreement to carry out data transmission.Wireless bar code recognizing apparatus needs to catch the image that at least one frame comprises bar code, then decodes, decoded data are being transferred to host computer.Host computer can be server, smart mobile phone, panel computer etc.In prior art, when two equipment (wireless bar code recognizing apparatus and host computer) are by wireless connections, wireless bar code equipment constantly can judge the connection status of two equipment rooms, when causing connecting instability due to distance or signal intensity attenuation, wireless bar code equipment can carry out threshold decision to the intensity of signal transmission, when threshold value is lower than setting value, the emissive power of adjustment wireless bar code recognizing apparatus, keeps the UNICOM of two equipment by increasing emissive power.And increase emissive power wireless bar code recognizing apparatus power consumption must be caused to increase, if increase emissive power, and two equipment still without effectively connecting, in this case, the bit error rate increase of data transmission, easily causes corrupt data or loss.Simple add verification to data sequence numbering, can exist and frequently carry out invalid repeating transmission behavior, repeatedly retransmit the integrality all may cannot guaranteeing data, the reliability of wireless transmission can not get ensureing, the Signal transmissions bit error rate is high.If increase emissive power to wireless bar code equipment certainly will shorten equipment task time, usually carry out extensive kinds of goods when making an inventory, need the working time that barcode device keeps longer.
Summary of the invention
For this reason, technical matters to be solved by this invention is that in prior art, wireless bar code recognizing apparatus connects to keep when signal transmission weakens, increase emissive power, but still Transmission may be there is cause loss of data, situation that transmission error rates is high, wireless transmission reliability can not get ensureing.
For solving the problems of the technologies described above, of the present invention adopted technical scheme:
A kind of wireless bar code recognizing apparatus, comprising:
Recognition module, specifically comprises:
One first circuit board, comprise one based on the image sensor array of complementary metal oxide semiconductor (CMOS), wherein said image sensor array comprises multiple pixel, and each pixel in described multiple pixel comprises a photosensitive area and an exhausted light shield memory block;
One second circuit board;
One tertiary circuit plate, comprises a decoder module and a control module, and described tertiary circuit board communications ground connects described first circuit board and second circuit board;
One imaging len, for the reflection ray extremely described image sensor array in guide ribs code table face;
One control module, for exposing multiple pixels of described image sensor array during an exposure period;
One support component, wherein, described support component comprises one for supporting the lens mount of described imaging len, described support component is arranged on before described first circuit board, and described in wherein said second circuit board and described first circuit board interval, support component is arranged and is arranged on before described first circuit board;
Lighting source, it is for projecting a lighting pattern, and described lighting source is made up of at least one light emitting diode being arranged on described second circuit board;
Aim at lighting source, it is for the aiming pattern in bar code surface projection one geometric configuration, and described lighting source is made up of at least one light emitting diode being arranged on described second circuit board;
The wavelength of described lighting source is different from the wavelength of described aiming lighting source;
Wherein, during described control module control lighting source makes the described illumination phase at least partially occur in described exposure period;
Wherein, described control module controls described image sensor array and starts with the exposure of the pixel making all row of described image sensor array simultaneously;
Wherein, described decoder module reads view data from described image sensor array and utilizes described view data to attempt automatically identifying and decoding dissimilar one-dimensional bar code or two-dimensional bar;
Wireless transmission module, connects described tertiary circuit plate communicatedly, comprises further:
First sampling module: attempt setting up wireless connections, judges whether that setting up valid wireless connects; That then the intensity level of sampling wireless connection signal, is designated as RSSI (n);
Second sampling module: the two field picture that decoding module decodes comprises bar code obtains the intensity level of sampling wireless connection signal again after bar code decoding data, is designated as RSSI (n+1);
Multilevel iudge module: the intensity level comparing the wireless connection signal of double sampling, judge wireless bar code recognizing apparatus and host computer whether close to each other, namely judge whether the value of RSSI (n+1) is greater than RSSI (n) value;
First processing module: if close to each other, i.e. RSSI (n+1) >RSSI (n), then whether the intensity level of the wireless connection signal of sampling again described in judging is greater than the first setting threshold value;
First transport module: if so, then described bar code decoding data are transferred to host computer by wireless;
First memory module: if not, then by the local storage of described bar code decoding data stored in described wireless bar code recognizing apparatus;
Second processing module: if not close to each other, i.e. RSSI (n+1)≤RSSI (n), then whether the intensity level of the wireless connection signal of sampling again described in judging is less than the second setting threshold value;
Second memory module: if so, then by the local storage of described bar code decoding data stored in described wireless bar code recognizing apparatus;
Second transport module: if not, then transfer to host computer by described bar code decoding data by wireless.
In described first sampling module, if connect without setting up valid wireless, then direct by the local storage of bar code decoding data stored in described wireless bar code recognizing apparatus.
In described first transport module, first the bar code decoding data stored in described local storage are transferred to host computer successively by stored in the time order and function order in described local storage, after being transmitted, then transmit described bar code decoding data.
In described second transport module, first the bar code decoding data stored in described local storage are transferred to host computer successively by stored in the time order and function order in described local storage, after being transmitted, then transmit described bar code decoding data.
Described first setting threshold value is larger than described second setting threshold value.
Technique scheme of the present invention has the following advantages compared to existing technology.
1. a kind of wireless bar code recognizing apparatus of the present invention comprises recognition module and wireless transmission module, first judges whether to set up wireless connections, if set up wireless connections, and the intensity level of sampling wireless connection signal.The intensity level of sampling wireless connection signal again after the success of decoding bar code, judge wireless bar code recognizing apparatus and host computer whether close to each other, and set first, second setting threshold value according to judged result, the signal of sampling and corresponding threshold value are judged, selects to store bar code decoded data by wireless transmission bar code decoding data or at local storage.By described wireless bar code recognizing apparatus and described host computer from the close-by examples to those far off, the situation that draws near, two different threshold values are set, effectively can avoid so frequently switching at Near Threshold, affect transmission availability.When transmitting unstable by bar code decoding data stored in local storage, prevent loss of data.
2. a kind of wireless bar code recognizing apparatus of the present invention, without when setting up valid wireless connection, in the bar code decoding data of decoding directly being stored stored in this locality, thus ensures the moment to keep duty, and adopts the memory device of routine, convenient adaptive.
3. the bar code decoding data stored in local storage, when setting up valid wireless and connecting, are uploaded, are guaranteed the ageing of data by a kind of wireless bar code recognizing apparatus of the present invention successively successively.
4. a kind of wireless bar code recognizing apparatus of the present invention for described wireless bar code recognizing apparatus and described host computer from the close-by examples to those far off, the situation that draws near, when drawing near, relative motion trend due to described invalid bar code recognizing apparatus and host computer can strengthen the intensity level of described wireless connection signal to a certain extent, owing to may be the information obtained after first time Propagation solution code-bar code, for ensureing transmission stability and reliability, the ratio second of the first setting threshold value setting need be set threshold value larger.Time from the close-by examples to those far off, relative motion trend due to described invalid bar code recognizing apparatus and host computer can weaken the intensity level of described wireless connection signal to a certain extent, due to wireless bar code recognizing apparatus and host computer effective to be invalidly connected may be there is, in order to the information obtained after Propagation solution code-bar code as much as possible, therefore it is smaller the ratio first of the second setting threshold value setting need to be set threshold value.
Accompanying drawing explanation
In order to make content of the present invention be more likely to be clearly understood, below according to a particular embodiment of the invention and by reference to the accompanying drawings, the present invention is further detailed explanation, wherein,
Fig. 1 is a kind of schematic appearance of a kind of wireless bar code of the present invention recognizing apparatus;
Fig. 2 is the another kind of schematic appearance of a kind of wireless bar code of the present invention recognizing apparatus;
Fig. 3 is the structural representation of the recognition module of a kind of wireless bar code recognizing apparatus of the present invention;
Fig. 4 is the inner structure cut-open view of the recognition module of a kind of wireless bar code recognizing apparatus of the present invention;
Fig. 5 is the job step process flow diagram of the wireless transmission module of the recognition module of a kind of wireless bar code recognizing apparatus of the present invention;
Fig. 6 is the structured flowchart of the wireless transmission module of the recognition module of a kind of wireless bar code recognizing apparatus of the present invention.
In figure, Reference numeral is expressed as: 1-distinguishes module; 11-first circuit board; 12-second circuit board; 13-tertiary circuit plate; 14-imaging len; 15-support component; 16-lighting source; 17-aims at lighting source; 21-first sampling module; 22-second sampling module; 23-multilevel iudge module; 24-first processing module; 241-first transport module; 242-first memory module; 25-second processing module; 251-second memory module; 252-second transport module.
Embodiment
Embodiment 1
A kind of outward appearance of wireless bar code recognizing apparatus as shown in the figures 1 and 2.Described a kind of wireless bar code recognizing apparatus, comprising: recognition module 1 (as shown in Figure 3), and recognition module is encapsulated in the top of hand-held housing usually, and described recognition module 1 comprises further:
One first circuit board 11, comprise one based on the image sensor array of complementary metal oxide semiconductor (CMOS) (CMOS), wherein said image sensor array comprises multiple pixel, and each pixel in described multiple pixel comprises a photosensitive area and an exhausted light shield memory block.
One second circuit board 12; As shown in Figure 4, be positioned at described first circuit board 11 front, and can be embedded in described support component 15.
One tertiary circuit plate 13, comprises a decoder module and a control module, and described tertiary circuit plate 13 connects described first circuit board and second circuit board communicatedly.Described tertiary circuit plate 13 connects with described first circuit board by pad, electrically connecting communicatedly described in the present embodiment, comprises the connection with electron motion by wire or resistance capacitance between components and parts; Also comprise and being electrically connected, to realize the transmission of signal of communication by the coupling of another element (such as single-chip microcomputer).Described tertiary circuit plate 13 is by wire and described second circuit board 12 UNICOM.
One imaging len 14, for the reflection ray extremely described image sensor array in guide ribs code table face.Described imaging len 14 can adopt glass or acrylic material, and can as required at plated surface filter coating.Usual imaging len has one or more pieces concave, convex lens to form alone or in combination.
One control module, for exposing multiple pixels of described image sensor array during an exposure period.Can be realized by software instruction, control chip that also can be independent realizes.
One support component 15, wherein, described support component comprises one for supporting the lens mount of described imaging len, described support component is arranged on before described first circuit board, and described in wherein said second circuit board and described first circuit board interval, support component is arranged and is arranged on before described first circuit board.Support component has black acrylic material to form.Further, form except camera lens light-permeable between imaging len 14 and described image sensor array, all the other lighttight imaging optical paths, make described image sensor array do not affected by other veiling glares.
Lighting source 16, it is for projecting a lighting pattern, and lighting pattern can be rectangle also can be circular.Described lighting source is made up of at least one light emitting diode being arranged on described second circuit board.As shown in Figure 3, around described imaging len 14, four LED for illumination are arranged in the present embodiment.
Aim at lighting source 17, it, for the aiming pattern in bar code surface projection one geometric configuration, can be strip also can be rectangle or circle.Described lighting source is made up of at least one light emitting diode being arranged on described second circuit board.As shown in Figure 3.At described imaging len 14, a light emitting diode is each side set.
The wavelength of described lighting source 16 is different from the wavelength of described aiming lighting source 17.The light that described lighting source 16 sends can be white light or ruddiness, and the light that described aiming lighting source 17 sends can be green or blue.
Wherein, during described control module control lighting source makes the described illumination phase at least partially occur in described exposure period.Namely described imageing sensor is when catching a two field picture, and illumination action at least occurs in and starts to capture imaging and terminate this process.
Wherein, described control module controls described image sensor array and starts with the exposure of the pixel making all row of described image sensor array simultaneously.The image minimum distortion generated can be made.
Wherein, described decoder module reads view data from described image sensor array and utilizes described view data to attempt automatically identifying and decoding dissimilar one-dimensional bar code or two-dimensional bar.Utilization is tabled look-up or is found feature, and calls corresponding decoding algorithm, automatically identifies the bar code of number of different types.
Described second circuit board 12 is also provided with indicating light, and indicating light can be laser or LED.Described tertiary circuit plate 13 trigger prompts light source after bar code decoding success forwards projects the hot spot of a geometric configuration, in order to point out the success of user's bar code decoding.Such as, after successfully decoded, form green on bar code surface or be different from " OK " hot spot of described lighting source and described aiming lighting source LED glow color, or production firm logo.
Described wireless bar code recognizing apparatus also comprises: wireless transmission module, connects described tertiary circuit plate 13 communicatedly.Also can be integrated on described tertiary circuit plate 13, also can be integrated on one piece of independent circuit board.What the present embodiment adopted is that wireless transmission integrated chip (not shown) on independent one piece of circuit board is connected with tertiary circuit plate 13 by flexible power conductor.Communication chip solution of the prior art can be adopted to apply and to comprise following operation logical module.As shown in Figure 5, described wireless transmission module as shown in Figure 6, specifically comprises the job step of described wireless transmission module:
First sampling module 21: attempt setting up wireless connections, judges whether that setting up valid wireless connects; That then the intensity level of sampling wireless connection signal, is designated as RSSI (n).Such as first time collects intensity level RSSI (1)=-70dbm of wireless connection signal.Wireless connections described in the present embodiment can be bluetooth, zigbe e, cellular data (GSM/CDMA/EVDO/WCDMA/TD-SCDMA/TDD-LTE/FDD-LTE, and follow-up evolution etc.), Wi-Fi etc.When successfully setting up wireless connections, pointed out by the slow flicker of the first attention gatter and set up wireless connections.Can be such as that the slow flicker of blue led (light emitting diode) carrys out reminding user.The frequency of slow flicker can be that 1s (second) glimmers 0.5 time, and namely 2s glimmers 1 time, also can arrange other frequencies.If connect without setting up valid wireless, wireless connections are pointed out not set up by the often bright of the first attention gatter.
Second sampling module 22: the two field picture that comprises bar code of decoding obtains the intensity level of sampling wireless connection signal again after bar code decoding data, is designated as RSSI (n+1); Such as described wireless bar code recognizing apparatus scans the image that a frame comprises bar code, and after successfully decoded, the intensity level of sampling wireless connection signal again, is RSSI (2)=-71dbm.After successfully decoded, pointing out bar code reading successfully decoded by lighting the second attention gatter, such as, can be green LED, shows green spot after successfully decoded in gathered bar code with certain geometric configuration within the time of setting.Or, described wireless bar code recognizing apparatus carries out button operation, and this button operation can trigger host computer (as server, panel computer, mobile phone etc.) performs wireless bar code recognizing apparatus as described in associative operation, then the intensity level of also sampling wireless connection signal when carrying out button operation.Also can be by setting-up time, gather the intensity level of wireless connection signal between described wireless bar code recognizing apparatus and host computer at interval of 6s (second).It is RSSI (n) that such as front 6s collects intensity level, and the current intensity level that collects is RSSI (n+1).
Multilevel iudge module 23: the intensity level comparing the wireless connection signal of double sampling, judge wireless bar code recognizing apparatus and host computer whether close to each other, namely judge whether the value of RSSI (n+1) is greater than RSSI (n) value.Owing to controlling the described process of wireless bar code recognizing apparatus internal signal, the instruction of transmission be adopt binary program language, conveniently judge wireless bar code recognizing apparatus and host computer whether close to each other, take to arrange the way of zone bit mark mobile status.Communication distance between described wireless bar code recognizing apparatus and host computer, mobile status from the close-by examples to those far off, signal strength values progressively weakens, and zone bit is set to " 1 " in order to represent this mobile status; On the contrary, draw near, zone bit is set to " 0 " in order to represent this mobile status.Through many experiments, when the intensity level of wireless connection signal is lower than-90dBm, the connection between described wireless bar code recognizing apparatus and host computer is insecure.
First processing module 24: if close to each other, i.e. RSSI (n+1) >RSSI (n), whether the intensity level of wireless connection signal of sampling again described in then judging is greater than the first setting threshold value, and first to set threshold might be set be-85dbm.
First transport module 241: if so, then described bar code decoding data are transferred to host computer by wireless.
First memory module 242: if not, then by the local storage of described bar code decoding data stored in described wireless bar code recognizing apparatus, stop to transmit with the data of host computer simultaneously.This process is asynchronous transmission process, when triggering this process, is pointed out described bar code decoding data stored in local storage by the fast blink of the first attention gatter.The frequency of fast blink can be 5 flickers in 1s (second) time, or arranges other frequencies and glimmer at a slow speed in order to obviously to distinguish.
Second processing module 25: if not close to each other, i.e. RSSI (n+1)≤RSSI (n), whether the intensity level of wireless connection signal of sampling again described in then judging is less than the second setting threshold value, and second to set threshold might be set be-90dbm.
Second memory module 251: if so, then by the local storage of described bar code decoding data stored in described wireless bar code recognizing apparatus.This process is asynchronous transmission process, when triggering this process, is pointed out described bar code decoding data stored in local storage by the fast blink of the first attention gatter.The frequency of fast blink can be 5 flickers in 1s (second) time, or arranges other frequencies and glimmer at a slow speed in order to obviously to distinguish.
Second transport module 252: if not, then transfer to host computer by described bar code decoding data by wireless.
First a kind of wireless bar code recognizing apparatus described in the present embodiment judges whether to set up wireless connections, if set up wireless connections, and the intensity level of sampling wireless connection signal.The intensity level of sampling wireless connection signal again after the success of decoding bar code, judge wireless bar code recognizing apparatus and host computer whether close to each other, and set first, second setting threshold value according to judged result, the signal of sampling and corresponding threshold value are judged, selects to store bar code decoded data by wireless transmission bar code decoding data or at local storage.By described wireless bar code recognizing apparatus and described host computer from the close-by examples to those far off, the situation that draws near, two different threshold values are set, effectively can avoid so frequently switching at Near Threshold, affect transmission availability.When transmitting unstable by bar code decoding data stored in local storage, prevent loss of data.
Embodiment 2
On the basis of above-described embodiment 1, in described first sampling module 21, if connect without setting up valid wireless, then direct by the local storage of bar code decoding data stored in described wireless bar code recognizing apparatus.Local storage can be conventional memory device, as the one in nand flash memory, storage card (SD, TF, CF etc.).
A kind of wireless bar code recognizing apparatus described in the present embodiment, without when setting up valid wireless connection, in the bar code decoding data of decoding directly being stored stored in this locality, thus ensures the moment to keep duty, and adopts the memory device of routine, convenient adaptive.
Embodiment 3
On the basis of above-described embodiment 2, in described first transport module 241, first the bar code decoding data stored in described local storage are transferred to host computer by wireless successively by stored in the time order and function order in described local storage, after being transmitted, then transmit described bar code decoding data.Described bar code decoding data are the bar code decoding data of the up-to-date recognition successfully decoded of described wireless bar code recognizing apparatus.
The bar code decoding data stored in local storage, when setting up valid wireless and connecting, are uploaded, are guaranteed the ageing of data by a kind of wireless bar code recognizing apparatus described in the present embodiment successively successively.
Embodiment 4
On the basis of above-described embodiment 3, in described second transport module 252, first the bar code decoding data stored in described local storage are transferred to host computer by wireless successively by stored in the time order and function order in described local storage, after being transmitted, then transmit described bar code decoding data.Described bar code decoding data are the bar code decoding data of the up-to-date recognition successfully decoded of described wireless bar code recognizing apparatus.
The bar code decoding data stored in local storage, when setting up valid wireless and connecting, are uploaded, are guaranteed the ageing of data by a kind of wireless bar code recognizing apparatus described in the present embodiment successively successively.
Embodiment 5
On the basis of above-described embodiment 4, described first setting threshold value is larger than described second setting threshold value.
A kind of wireless bar code recognizing apparatus described in the present embodiment, for described wireless bar code recognizing apparatus and described host computer from the close-by examples to those far off, the situation that draws near, two different threshold values are set, effectively can avoid so frequently switching at Near Threshold, affect transmission availability.When drawing near, relative motion trend due to described invalid bar code recognizing apparatus and host computer can strengthen the intensity level of described wireless connection signal to a certain extent, owing to may be the information obtained after first time Propagation solution code-bar code, for ensureing transmission stability and reliability, the ratio second of the first setting threshold value setting need be set threshold value larger.Time from the close-by examples to those far off, relative motion trend due to described invalid bar code recognizing apparatus and host computer can weaken the intensity level of described wireless connection signal to a certain extent, due to wireless bar code recognizing apparatus and host computer effective to be invalidly connected may be there is, in order to the information obtained after Propagation solution code-bar code as much as possible, therefore it is smaller the ratio first of the second setting threshold value setting need to be set threshold value.
Obviously, above-described embodiment is only for clearly example being described, and the restriction not to embodiment.For those of ordinary skill in the field, can also make other changes in different forms on the basis of the above description.Here exhaustive without the need to also giving all embodiments.And thus the apparent change of extending out or variation be still among the protection domain of the invention.
Claims (5)
1. a wireless bar code recognizing apparatus, is characterized in that, comprising:
Recognition module, specifically comprises:
One first circuit board, comprise one based on the image sensor array of complementary metal oxide semiconductor (CMOS), wherein said image sensor array comprises multiple pixel, and each pixel in described multiple pixel comprises a photosensitive area and an exhausted light shield memory block;
One second circuit board;
One tertiary circuit plate, comprises a decoder module and a control module, and described tertiary circuit board communications ground connects described first circuit board and second circuit board;
One imaging len, for the reflection ray extremely described image sensor array in guide ribs code table face;
One control module, for exposing multiple pixels of described image sensor array during an exposure period;
One support component, wherein, described support component comprises one for supporting the lens mount of described imaging len, described support component is arranged on before described first circuit board, and described in wherein said second circuit board and described first circuit board interval, support component is arranged and is arranged on before described first circuit board;
Lighting source, it is for projecting a lighting pattern, and described lighting source is made up of at least one light emitting diode being arranged on described second circuit board;
Aim at lighting source, it is for the aiming pattern in bar code surface projection one geometric configuration, and described lighting source is made up of at least one light emitting diode being arranged on described second circuit board;
The wavelength of described lighting source is different from the wavelength of described aiming lighting source;
Wherein, during described control module control lighting source makes the described illumination phase at least partially occur in described exposure period;
Wherein, described control module controls described image sensor array and starts with the exposure of the pixel making all row of described image sensor array simultaneously;
Wherein, described decoder module reads view data from described image sensor array and utilizes described view data to attempt automatically identifying and decoding dissimilar one-dimensional bar code or two-dimensional bar;
Wireless transmission module, connects described tertiary circuit plate communicatedly, comprises further:
First sampling module: attempt setting up wireless connections, judges whether that setting up valid wireless connects; That then the intensity level of sampling wireless connection signal, is designated as RSSI (n);
Second sampling module: the two field picture that comprises bar code of decoding obtains the intensity level of sampling wireless connection signal again after bar code decoding data, is designated as RSSI (n+1);
Multilevel iudge module: the intensity level comparing the wireless connection signal of double sampling, judge wireless bar code recognizing apparatus and host computer whether close to each other, namely judge whether the value of RSSI (n+1) is greater than RSSI (n) value;
First processing module: if close to each other, i.e. RSSI (n+1) >RSSI (n), then whether the intensity level of the wireless connection signal of sampling again described in judging is greater than the first setting threshold value;
First transport module: if so, then described bar code decoding data are transferred to host computer by wireless;
First memory module: if not, then by the local storage of described bar code decoding data stored in described wireless bar code recognizing apparatus;
Second processing module: if not close to each other, i.e. RSSI (n+1)≤RSSI (n), then whether the intensity level of the wireless connection signal of sampling again described in judging is less than the second setting threshold value;
Second memory module: if so, then by the local storage of described bar code decoding data stored in described wireless bar code recognizing apparatus;
Second transport module: if not, then transfer to host computer by described bar code decoding data by wireless.
2. a kind of wireless bar code recognizing apparatus according to claim 1, is characterized in that, in described first sampling module, if connect without setting up valid wireless, then direct by the local storage of bar code decoding data stored in described wireless bar code recognizing apparatus.
3. a kind of wireless bar code recognizing apparatus according to claim 2, it is characterized in that, in described first transport module, first the bar code decoding data stored in described local storage are transferred to host computer successively by stored in the time order and function order in described local storage, after being transmitted, then transmit described bar code decoding data.
4. a kind of wireless bar code recognizing apparatus according to Claims 2 or 3, it is characterized in that, in described second transport module, first the bar code decoding data stored in described local storage are transferred to host computer successively by stored in the time order and function order in described local storage, after being transmitted, then transmit described bar code decoding data.
5. a kind of wireless bar code recognizing apparatus according to claim 2 or 4, is characterized in that, described first setting threshold value is larger than described second setting threshold value.
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| CN201510276094.XA CN104933384A (en) | 2015-05-27 | 2015-05-27 | Wireless bar code recognition and reading equipment |
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| CN106709788A (en) * | 2017-01-09 | 2017-05-24 | 北京小米移动软件有限公司 | Network order processing method and apparatus |
| CN111259879A (en) * | 2020-01-09 | 2020-06-09 | 福州符号信息科技有限公司 | Method and system for improving first reading rate of bar code reading equipment |
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| CN104504357A (en) * | 2014-12-23 | 2015-04-08 | 福建新大陆自动识别技术有限公司 | Automatic barcode scanner and scanning method |
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| CN106709788A (en) * | 2017-01-09 | 2017-05-24 | 北京小米移动软件有限公司 | Network order processing method and apparatus |
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