CN100444606C - Data communication system and method of hand-held apparatus - Google Patents
Data communication system and method of hand-held apparatus Download PDFInfo
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Abstract
The present invention relates to a data communication system and method of a hand-held device. The data communication system is provided with a transmitting end and a receiving end, wherein the transmitting end comprises a data dividing module, a two-dimensional code encoding module and a display module, and the receiving end comprises a camera module, a decoding module and a data merging module. The data communication method comprises the following procedures: the transmitting end divides data to be transmitted into data blocks by the data dividing module; the divided data blocks are input into the two-dimensional code encoding module to form an encoded image which is displayed on the display module; the receiving terminal collects two-dimensional code image sequence information displayed by the display module of the transmitting end by the camera module; the two-dimensional code image sequence is decoded by a decoding module pair to form data blocks, and ultimate data are formed by the data merging module. The method of the present invention can be used for carrying out data transmission between a hand-held device and a computer, and can simultaneously simplify product structure and save product cost.
Description
Technical field
This method relates to a kind of data communication method, and particularly relate to a kind ofly be directed between the equipment such as mobile phone, PDA, and computer equipment or computer equipment between the handset data means of communication of transfer of data.
Background technology
Along with the development of computer networking and consumer electronics, carry out the exchange of data between different computer equipments, consumer-elcetronics devices, the handheld device, brought growing to even greater heights of handset applications.Usually need to transmit contents such as data, program, image, audio frequency, video between mobile phone, PDA, the computer.Present stage has had several different methods can realize transfer of data between the distinct device.For example, Chang Yong several data communication modes comprise wired connection, cable network, wireless network, infrared transmission and Bluetooth technology etc.Need the physical connection lead-in wire for wired connection and cable network, so troublesome poeration and inconvenience.Wireless network, infrared transmission and bluetooth all are radio transmitting methods, but are built-in with the corresponding hardware adapter that is used to communicate by letter in these mode requirement equipment, and this has not only increased equipment cost, has also increased the complexity of system.
This shows that above-mentioned existing data communication system obviously still has inconvenience and defective, and demands urgently further being improved in product structure, the means of communication and use.In order to solve the problem that data communication system and method exist, relevant manufacturer there's no one who doesn't or isn't seeks solution painstakingly, but do not see always that for a long time suitable design finished by development, and conventional method does not have appropriate method to address the above problem, and this obviously is the problem that the anxious desire of relevant dealer solves.Therefore how to found a kind of new data communication system and method that has that volume is little, cost is low concurrently and can have comprehensive adjustment function when using, just become the current industry utmost point to need improved target.
Planar bar code technology is a kind of novel coding method that grew up in recent years, be applied to the fields such as quick typing of logistics, identity discriminating, data, by data are carried out error correction coding, produce an image, this image can be realized above-mentioned application by printing, Network Transmission.Two-dimension code has the data volume of embedding height with respect to the one dimension sign indicating number, the characteristics that error correcting capability is strong, as: for the QR sign indicating number, maximum can embed the multibyte data of 2K, has 30% error correction capability.
Because the defective that above-mentioned existing data communication system and method exist, the inventor is based on being engaged in this type of product design manufacturing abundant for many years practical experience and professional knowledge, and the utilization of cooperation scientific principle, actively studied innovation, in the hope of founding a kind of new handset data communication system and method, can improve general existing data communication system and method, make it have more practicality.Through constantly research, design, and after studying repeatedly and improving, create the present invention who has practical value finally.
Summary of the invention
The objective of the invention is to, overcome the defective that existing data communication system exists, and a kind of new handset data communication system, technical problem to be solved are provided is the cost that makes its structure that can simplify product and save product, thereby is suitable for practicality more.
Another object of the present invention is to, overcome the defective that existing data communication method exists, and a kind of new handset data means of communication, technical problem to be solved are provided is to make its transfer of data that can carry out between handheld device and computer, thereby is suitable for practicality more.
The object of the invention to solve the technical problems realizes by the following technical solutions.The data communication system of a kind of handheld device that proposes according to the present invention has transmitting terminal and receiving terminal, and above-mentioned transmitting terminal comprises data segmentation module, two-dimension code coding module and display module; Above-mentioned receiving terminal comprises that photographing module, image pretreatment module, decoder module and data merge module; Wherein two-dimension code coding module view data that data are cut apart after the module segmentation is encoded, then by the image after the display module code displaying, the photographing module of receiving terminal is gathered the image in 2 D code sequence information that the transmitting terminal display module shows, and by decoder module the image in 2 D code sequence information after gathering is decoded, merge module by data more decoded data are merged.
The object of the invention to solve the technical problems also can be applied to the following technical measures to achieve further.
Aforesaid data communication system wherein also comprises the image pretreatment module at receiving terminal, and the image in 2 D code sequence information that collects is proofreaied and correct and binary conversion treatment.
Aforesaid data communication system, wherein said transmitting terminal and receiving terminal comprise respectively: mobile phone, PDA and computer one of them.
Aforesaid data communication system, its working method comprises single-simplex operation mode, diplex operation mode and half-duplex operation.
Aforesaid data communication system, in the wherein said single-simplex operation mode, transmitting terminal and receiving terminal have display module and photographing module respectively.
Aforesaid data communication system, in wherein said diplex operation mode and the half-duplex operation, transmitting terminal and receiving terminal have display module and photographing module simultaneously.
Aforesaid data communication system, the display module of wherein said transmitting terminal comprises LCD display.
Aforesaid data communication system, the photographing module of wherein said receiving terminal comprises camera.
The object of the invention to solve the technical problems realizes by the following technical solutions.According to a kind of method that is applied to the data communication system of aforesaid handheld device that the present invention proposes, this method may further comprise the steps: transmitting terminal is divided into data block by the data that data segmentation module will need to transmit; The divided data piece is input to the two-dimension code coding module, and formation coding back image also is presented on the display module; Receiving terminal is gathered the image in 2 D code sequence information that the transmitting terminal display module shows by photographing module; Decoder module is decoded to above-mentioned image in 2 D code sequence, forms data block; Merge module by data and form final data.
The object of the invention to solve the technical problems also can be applied to the following technical measures to achieve further.
Aforesaid method, wherein: the frame per second that given transmitting terminal sends image is n frame/second, and when data transmission rate was p bps, the data capacity Q that embeds in every two field picture was Q=p/n
At this moment, when the data length of transmission was L, then the frame number N that the transmission data need under this data transmission rate was N=floor (L/Q)+1, and wherein floor () function representation rounds downwards, and the time that then needs altogether to transmit is N/n.
Aforesaid method is wherein continuously cut apart the data that will transmit with data with the Q size by data segmentation module, forms the data block of N identical size.
Aforesaid method, the coding module of wherein said two-dimension code can be selected PDF417, QR sign indicating number, the coding method of Data Matrix two-dimension code.
Aforesaid method wherein more comprised the correction of carrying out image and the pre-treatment step of binaryzation before decoder module is to the step of image in 2 D code sequential decoding.
Aforesaid method, wherein in to the image in 2 D code sequential decoding, the error correction that utilizes two-dimension code to have carries out error correction to the mistake in the transmission course.
The present invention compared with prior art has tangible advantage and beneficial effect.By above technical scheme as can be known, characteristics of the present invention are to realize by the transmission of the video between photographing module and the display module communication process of data.And the video of transmission is a two-dimension code image encoded sequence.
Via as can be known above-mentioned, the invention relates to a kind of handset data communication system and method, be directed between the equipment such as mobile phone, PDA, and computer equipment or computer equipment between transfer of data.As transmitting address list information, program, data between camera mobile phone and the camera mobile phone; Transmission procedure data etc. between mobile phone and the computer.
By technique scheme, handset data communication system of the present invention and method have following advantage at least:
1, the present invention adopts two-dimension code as media, by with the data transmission method of realizing a kind of novelty cooperating of photographing module and display module, photographing module and the video sequence between the display module by two equipment carry out the transmission of data, owing to need not line and adapter between the equipment, therefore can save the cost of product.
2, adopt the data communication method that the present invention is based on two-dimension code, can save handheld device greatly owing to add the cost of communication module, adopt the video transmission method of two-dimension code, only need increase software module on the handheld device that possesses camera and display screen can realize, can also further improve recognition speed and efficient by the two-dimension code codec hardware module of built-in special use.Simultaneously planar bar code technology is ripe relatively, and the discrimination height can be realized the transmission rate of K up to a hundred, and between common handheld device, the transfer of data between handheld device and the computer equipment can be satisfied the demand.
3, the inventive method is transmitted based on video, need not line, electromagnetic signal and lightwave signal between the use equipment, thereby has environmental protection characteristic.Eliminate the use of complicated communications adapter simultaneously, simplified design, reduced cost.Data transmission method of the present invention is simple and be easy to use, has higher actual application value.
In sum, handset data communication system and method that the present invention is special can reduce required equipment and the cost of transfer of data between handheld device and the computer.It has above-mentioned many advantages and practical value, and in class methods, do not see have similar design to publish or use and really genus innovation, no matter it is all having bigger improvement on method or on the function, have large improvement technically, and produced handy and practical effect, and more existing data communication system and method have the multinomial effect of enhancement, thereby are suitable for practicality more, really are a new and innovative, progressive, practical new design.
Above-mentioned explanation only is the general introduction of technical solution of the present invention, for can clearer understanding technological means of the present invention, and can be implemented according to the content of specification, and for above-mentioned and other purposes, feature and advantage of the present invention can be become apparent, below especially exemplified by preferred embodiment, and conjunction with figs., be described in detail as follows.
Description of drawings
1: transmitting terminal 2: receiving terminal
11: data segmentation module 12: coding module
13,23,33: display module 14,24,34: photographing module
15: image pretreatment module 16: the data decode module
17: data merge module 21,31: equipment 1
22,32: equipment 2
Figure 1 shows that the present invention adopts the transfer of data schematic diagram of two-dimension code.
Figure 2 shows that the single-simplex operation mode of handheld device communication system of the present invention.
Figure 3 shows that the half-duplex and the diplex operation mode of handheld device communication system of the present invention.
Figure 4 shows that the data transmission procedure flow chart of handheld device communication system of the present invention.
Embodiment
Reach technological means and the effect that predetermined goal of the invention is taked for further setting forth the present invention, below in conjunction with accompanying drawing and preferred embodiment, communication system and its embodiment of method, method, step, feature and the effect thereof of the handheld device that foundation the present invention is proposed, describe in detail as after.
(1) the transfer of data principle of employing two-dimension code
Seeing also shown in Figure 1ly, is the schematic diagram of the communication modes of handheld device of the present invention.Characteristics of the present invention are to realize by the transmission of the video between photographing module and the display module communication process of data.And the video of transmission is a two-dimension code image encoded sequence.
As shown in Figure 1, transmitting terminal 1 comprises display module 13, coding module 12 and data segmentation module 11.Receiving terminal 2 comprises that photographing module 14, image pretreatment module 15, data decode module 16 and data merge module 17.
The data that transmitting terminal at first will transmit by data segmentation module 11 are divided into a plurality of data blocks; Carry out the two-dimension code coding by 12 pairs of divided data of coding module then, form the image in 2 D code of a series; Image after will encoding again is presented on the display module 13.The image sequence information that receiving terminal is gathered the transmitting apparatus display module by photographing module 14 earlier; Resolve by 15 pairs of image sequences of image pretreatment module then, form the two-dimensional image sequence that can be used for decoding; Decode by 16 pairs of image sequences of data decode module again; Merge module 17 by data at last and form final data.As can be seen, these means of communication can realize the transmission of data at the equipment room that comprises display device and camera head.
(2) equipment connects
The communication modes employing video of handheld device of the present invention is transmitted as media and carries out transfer of data, and it has following two kinds of working methods:
(a) simplex mode
See also shown in Figure 2ly, be the single-simplex operation mode of handheld device communication modes of the present invention.Wherein transmitting terminal 21, and it has display module 23, and typical handheld device display module is a LCD display; Another is a receiving terminal 22, and it has photographing module 24, and the photographing module of typical handheld device is a camera.
(b) duplex and half-duplex mode
See also shown in Figure 3ly, be the duplex and the half-duplex operation of handheld device communication modes of the present invention.Wherein equipment 1 and equipment 2 need have display module 23,33 and photographing module 24,34 simultaneously.
(3) data transmission procedure
Seeing also shown in Figure 4ly, is the flow chart of data transmission procedure of the present invention.
(a) transmitting terminal
In the analytic ability determination data transfer rate of square 41 transmitting terminals (for example, mobile phone, PDA or computer etc.) according to the photographing module of the resolution of this equipment display module and size and receiving terminal.
Image frame per second in given transmission is n, and given data transmission rate is under the situation of p, and the data capacity Q that embeds in every two field picture is:
Q＝p/n
Data length in transmission is under the situation of L, and then the frame number N that the transmission data need under this data transmission rate is:
N＝floor(L/Q)+1，
Wherein floor (L/Q) function representation rounds downwards the result of L/Q, and the time that then needs to transmit is N/n.
By data segmentation module data are cut apart the data that will transmit continuously with the Q size at square 42, form the data block of N identical size, the size of each data block is Q.
At square 43 N data block is input to the coding module of two-dimension code continuously, forms N coding back image respectively, be presented on the display module with the speed of n frame per second.Two-dimension code can be selected coding methods such as PDF417, QR sign indicating number, Data Matrix, also can improve level of error correction to reduce data transmission error.
(b) receiving terminal
Gather the image sequence information of transmitting apparatus display screen by photographing module at square 44 receiving terminals (for example, mobile phone, PDA or computer etc.).Resolve N image sequence at square 45 through the preprocessing process of image, and carry out the correction and the binaryzation of image, form the image in 2 D code sequence that can be used for decoding.The image rectification here is the geometric correction of image, eliminates because the influence that the anamorphose that cause the position of camera is discerned two-dimension code.Because the image of gathering is coloured image normally,, be fit to the black and white binary image that two-dimension code detects thereby form by carrying out binary conversion treatment.In square 46 data decode modules each frame data is decoded, the error correction that utilizes two-dimension code to have simultaneously carries out error correction to the mistake in transmission course.After square 47 is finished decoding, formed N data block, merged module at square 48 by data at last and form final data.
Therefore, by above-mentioned data transmission procedure, realized data transfer between devices.
The above, it only is preferred embodiment of the present invention, be not that the present invention is done any pro forma restriction, though the present invention discloses as above with preferred embodiment, yet be not in order to limit the present invention, any those skilled in the art, in not breaking away from the technical solution of the present invention scope, when the method that can utilize above-mentioned announcement and technology contents are made a little change or be modified to the equivalent embodiment of equivalent variations, in every case be the content that does not break away from technical solution of the present invention, according to technical spirit of the present invention to any simple modification that above embodiment did, equivalent variations and modification all still belong in the scope of technical solution of the present invention.
Claims (14)
1, a kind of data communication system of handheld device has transmitting terminal and receiving terminal, it is characterized in that:
Above-mentioned transmitting terminal comprises data segmentation module, two-dimension code coding module and display module;
Above-mentioned receiving terminal comprises that photographing module, decoder module and data merge module;
Wherein two-dimension code coding module view data that data are cut apart after the module segmentation is encoded, then by the image after the display module code displaying,
The photographing module of receiving terminal is gathered the image in 2 D code sequence information that the transmitting terminal display module shows, and by decoder module the image in 2 D code sequence information after gathering is decoded, and merges module by data more decoded data are merged.
2, the data communication system of handheld device according to claim 1 is characterized in that wherein also comprising the image pretreatment module at receiving terminal, and the image in 2 D code sequence information that collects is proofreaied and correct and binary conversion treatment.
3, the data communication system of handheld device according to claim 1 is characterized in that wherein said transmitting terminal and receiving terminal comprise respectively: mobile phone, PDA and computer one of them.
4, the data communication system of handheld device according to claim 1 is characterized in that its working method comprises single-simplex operation mode, diplex operation mode and half-duplex operation.
5, the data communication system of handheld device according to claim 4 is characterized in that transmitting terminal and receiving terminal have display module and photographing module respectively in the wherein said single-simplex operation mode.
6, the data communication system of handheld device according to claim 4 is characterized in that transmitting terminal and receiving terminal have display module and photographing module simultaneously in wherein said diplex operation mode and the half-duplex operation.
7, the data communication system of handheld device according to claim 1 is characterized in that the display module of wherein said transmitting terminal comprises LCD display.
8, the data communication system of handheld device according to claim 1 is characterized in that the photographing module of wherein said receiving terminal comprises camera.
9, a kind of method that is applied to the data communication system of the handheld device in the claim 1 is characterized in that this method may further comprise the steps:
Transmitting terminal is divided into data block by the data that data segmentation module will need to transmit;
The divided data piece is input to the two-dimension code coding module, and formation coding back image also is presented on the display module;
Receiving terminal is gathered the image in 2 D code sequence information that the transmitting terminal display module shows by photographing module;
Decoder module is decoded to above-mentioned image in 2 D code sequence, forms data block;
Merge module by data and form final data.
10, method according to claim 9 is characterized in that wherein: the frame per second that given transmitting terminal sends image is n frame/second, and when data transmission rate was p bps, the data capacity Q that embeds in every two field picture was
Q＝p/n
At this moment, when the data length of transmission was L, then the frame number N that the transmission data need under this data transmission rate was
N＝floor(L/Q)+1
Wherein floor () function representation rounds downwards, and the time that then needs altogether to transmit is N/n.
11, method according to claim 10 is characterized in that wherein by data segmentation module data being cut apart the data that will transmit continuously with the Q size, forms the data block of N identical size.
12, method according to claim 9 is characterized in that the coding module of wherein said two-dimension code comprises PDF417, QR sign indicating number, the coding method of Data Matrix two-dimension code.
13, method according to claim 9 is characterized in that wherein more comprising the correction of carrying out image and the pre-treatment step of binaryzation before decoder module is to the step of image in 2 D code sequential decoding.
14, method according to claim 9 is characterized in that wherein in to the image in 2 D code sequential decoding, the error correction that utilizes two-dimension code to have carries out error correction to the mistake in the transmission course.
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| CNB2005100828709A CN100444606C (en) | 2005-07-11 | 2005-07-11 | Data communication system and method of hand-held apparatus |
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| CNB2005100828709A CN100444606C (en) | 2005-07-11 | 2005-07-11 | Data communication system and method of hand-held apparatus |
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| CN100444606C true CN100444606C (en) | 2008-12-17 |
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| CN2473688Y (en) * | 2001-04-23 | 2002-01-23 | 张念录 | Radio transmit bar code picture reader |
| CN1398471A (en) * | 2000-10-24 | 2003-02-19 | 索尼公司 | Information processing method and information processing appts. having communication function |
| JP2003125361A (en) * | 2001-10-12 | 2003-04-25 | Sony Corp | Information processing device, information processing method, information processing program, and information processing system |
| JP2004207852A (en) * | 2002-12-24 | 2004-07-22 | Denso Wave Inc | Image communication system |
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2005
- 2005-07-11 CN CNB2005100828709A patent/CN100444606C/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2434736Y (en) * | 2000-06-21 | 2001-06-13 | 福州鸿安电子技术开发有限公司 | Hand-held two-dimensional bar code data terminal |
| CN1398471A (en) * | 2000-10-24 | 2003-02-19 | 索尼公司 | Information processing method and information processing appts. having communication function |
| CN2473688Y (en) * | 2001-04-23 | 2002-01-23 | 张念录 | Radio transmit bar code picture reader |
| JP2003125361A (en) * | 2001-10-12 | 2003-04-25 | Sony Corp | Information processing device, information processing method, information processing program, and information processing system |
| JP2004207852A (en) * | 2002-12-24 | 2004-07-22 | Denso Wave Inc | Image communication system |
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