CN102025983B - Data transmission processing method and system and corresponding light-emitting diode (LED) display system - Google Patents
Data transmission processing method and system and corresponding light-emitting diode (LED) display system Download PDFInfo
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- CN102025983B CN102025983B CN2010102877876A CN201010287787A CN102025983B CN 102025983 B CN102025983 B CN 102025983B CN 2010102877876 A CN2010102877876 A CN 2010102877876A CN 201010287787 A CN201010287787 A CN 201010287787A CN 102025983 B CN102025983 B CN 102025983B
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Abstract
The invention discloses a data transmission processing method and system. The method comprises: A, data is compressed at a data transmitting terminal, the size of the compressed data is compared with the size of the original data, if the size of the compressed data is less than that of the original data, the compressed data is sent, otherwise the original data is sent; and B, at a data receiving terminal, the received original data is directly stored, and the received compressed data is decompressed and then stored. The system comprises the data transmitting terminal and the data receiving terminal, wherein the transmitting terminal is used for executing the step A, and the receiving terminal is used for executing the step B. The invention also discloses a light-emitting diode (LED) display system, comprising a display control module, an LED control panel, a memorizer and an LED display screen, wherein the display control module is taken as the data transmitting terminal in the method disclosed by the invention, and the LED control panel is taken as the data receiving terminal in the method disclosed by the invention. According to the invention, the transmission speed for displaying data in a low-cost display system and the operational performance can be improved.
Description
Technical field
The present invention relates to electronical display data transfer processing technology field, relate in particular to a kind of data transmission processing method, system and use light emitting diode (LED, the Light EmittingDiode) display system of this data transmission processing method.
Background technology
LED display also is known as electronic display or the word screen that wafts, and its principle is secretly to go out the information contents such as display text, picture, animation and video by LED dot matrix lamp pearl.LED display has brightness height, luminous even, the characteristics such as power consumption is little, the life-span is long, against weather is strong, good reliability, become rapidly in recent years the outstanding person in indoor outer flat pannel display field, be widely used in the field of information display such as outdoor traffic, billboard, public display screen.
At present, the common structure composition of the compact LED display system of industry use comprises: display control apparatus such as computing machine, LED control panel and LED display.Has special-purpose display control module (such as display control program) in the described display control apparatus, display control apparatus will show that by modes such as serial communication, IP network communication, wireless data communications data send to the LED control panel, and LED control panel storage shows data and outputs to LED display according to the display mode that shows data and display structure and shows.
But, along with people are familiar with the use of LED display system and more to the pursuit of display effect, the demonstration data of the big data quantities such as increasing picture are added to and show that its result who causes is: amount of communication data is increasing in the data, and call duration time is also more and more longer simultaneously.Yet, owing to hardware cost need to be controlled at lower level, the memory size of compact LED display system is usually very little, therefore adopt the LED display system of available data transmission mode when the demonstration data of transmission big data quantity, transmission speed and usability can obviously reduce, and have affected greatly the market competitiveness of LED display system.
Summary of the invention
In view of this, fundamental purpose of the present invention is to provide a kind of data transmission processing method and system, shows data transfer speed and usability in the low-cost display system to improve.
Another purpose of the present invention is to provide a kind of LED display system, to improve data rate and the usability of LED display system.
For achieving the above object, technical scheme of the present invention is achieved in that
A kind of data transmission processing method may further comprise the steps:
A, at the data sending terminal packed data, the size of packed data and raw data relatively is if packed data less than raw data then send packed data, otherwise sends raw data;
B, at data receiver, the raw data that receives is directly stored, the packed data that receives elder generation decompress(ion) is stored again.
As a kind of preferred embodiment, described data sending terminal segmentation sends data, described data receiver segmentation receive data.
As a kind of preferred embodiment, among the described step B, the described concrete grammar that the packed data elder generation decompress(ion) that receives is stored again comprises:
B1, judging whether the memory size of receiving end allows whole decompress(ion), is execution in step B2 then, otherwise execution in step B3;
B2, after receiving each segmentation packed data to the whole decompress(ion) of packed data and storage, and finish this step B;
B3, segmentation decompress(ion) each section packed data and fragmented storage.
As a kind of preferred embodiment, describedly judge whether the memory size of receiving end allows the concrete grammar of whole decompress(ion) to be: whether the length of the raw data of the packed data that relatively receives is less than the free memory capacity, if it is allow whole decompress(ion), otherwise do not allow whole decompress(ion).
As a kind of preferred embodiment, before steps A, the method further comprises: becoming original dot matrix to show data data-switching to be sent, is that original dot matrix shows data in raw data described in the steps A;
After step B, the method further comprises: read described original dot matrix and show that data output to the LED display screen and show from storer.
A kind of data transmission processing system comprises data sending terminal and data receiver, wherein:
Described data sending terminal comprises compression module, comparison module and sending module; Described compression module is used for packed data; Described comparison module is used for the relatively size of packed data and raw data, if packed data less than raw data then trigger described sending module and send packed data, sends raw data otherwise trigger described sending module;
Described data receiver comprises receiver module, data type judge module and decompression module; Described data type judge module is used for judging the data type that described receiver module is received, if raw data then directly is stored in described raw data in the storer, if packed data then triggers described this packed data of decompression module decompress(ion), again the data behind the decompress(ion) are stored in the storer.
As a kind of preferred embodiment, further comprise segmentation module in the described sending module, be used for data to be sent are carried out segmentation, carry out segmentation by sending module and send.
As a kind of preferred embodiment, the decompression module in the described data receiver further comprises decompress(ion) mode judge module, global solution die block and segmentation decompression module;
Described decompress(ion) mode judge module is then to trigger the global solution die block for the packed data whether the free memory capacity of judging receiving end allows whole decompress(ion) to receive, otherwise triggers the segmentation decompression module;
Described global solution die block is used for after receiving each segmentation packed data the whole decompress(ion) of packed data and passes to memory stores;
Described segmentation decompression module is used for segmentation decompress(ion) each section packed data and passes to the memory fragmentation storage.
A kind of LED display system comprises display control module, LED control panel, storer and LED display, and described display control module comprises compression module, comparison module and sending module as the generation and the transmitting terminal that show data; Described compression module is used for packed data; Described comparison module is used for the relatively size of packed data and raw data, if packed data less than raw data then trigger described sending module and send packed data, sends raw data otherwise trigger described sending module;
Described LED control panel comprises receiver module, data type judge module and decompression module as the receiving end that shows data; Described data type judge module is used for judging the data type that described receiver module is received, if raw data then triggers the directly described raw data of storage of described storer, if packed data then triggers described this packed data of decompression module decompress(ion), again by the data behind the described memory stores decompress(ion).
As a kind of preferred embodiment, further comprise segmentation module in the described sending module, be used for data to be sent are carried out segmentation, carry out segmentation by described sending module and send.
As a kind of preferred embodiment, the decompression module in the described LED control panel further comprises decompress(ion) mode judge module, global solution die block and segmentation decompression module; Described decompress(ion) mode judge module is then to trigger described global solution die block, otherwise triggers described segmentation decompression module for the packed data whether memory size of judging the LED control panel allows whole decompress(ion) to receive; Described global solution die block is used for after receiving each segmentation packed data the whole decompress(ion) of packed data and passes to memory stores; Described segmentation decompression module is used for segmentation decompress(ion) each section packed data and passes to the memory fragmentation storage.
The present invention has adopted a kind of adaptive compress technique in the data transmission and processing process, that is: judge that whether packed data is less than raw data, if it is transmitted data compressing, otherwise the transmission raw data is owing to adopted this adaptive compress technique, so the present invention is during for the large data of the data volumes such as needs transmission picture, can transmit adaptively minimum data volume, thereby reduced amount of communication data, shortened call duration time, improved communication transfer speeds and usability.For the LED display system is this hardware cost is required very low display system, on the basis that does not increase hardware cost, just can promote demonstration data transfer speed and usability, satisfy the demand of the big data quantity transmission (for example picture video data transmission) that day by day increases.
The present invention has also adopted the segmentation Compression Transmission Technology, the processing mode of whole decompress(ion) after data receiver can select the data less to original data volume to receive the packed data of all segmentations, to the processing mode of larger each segmentation difference decompress(ion) of the data of original data volume, thereby further promoted the response speed of communicating by letter.
In addition; because the present invention adopts compression algorithm that raw data has been carried out recompile; changed the composition structure of raw data; so that there are very big-difference in packed data and raw data in data volume and form; simultaneously because data sending terminal uses adaptive compression; existing packed data has again not packed data in the communication process; so that the presentation of data of communication process is diversified; and then so that listener be difficult to by obtaining definite raw data analytic system; be equivalent to finish the re-encryption to raw data; finally reach the communication protocol of protection display system and the purpose of the composition structure that shows data, promoted the security of data transmission.
Description of drawings
Fig. 1 is composition and the data flow synoptic diagram of LED display system of the present invention;
Fig. 2 is that data transmission processing method of the present invention is at the detail flowchart of data sending terminal;
Fig. 3 is that data transmission processing method of the present invention is at the detail flowchart of data receiver;
Fig. 4 is that data transmission processing method of the present invention sends in the situation of data the detail flowchart of data receiver in segmentation;
Fig. 5 is a kind of embodiment synoptic diagram of data transmission processing system of the present invention;
Fig. 6 is with the embodiment synoptic diagram of segment transmissions function in the data transmission processing system of the present invention.
Embodiment
Below by specific embodiments and the drawings the present invention is described in further details.
The core technology scheme of data transmission processing method of the present invention is: adopt the compress technique packed data, and communication two ends make self-adaptive processing, that is: at the data sending terminal packed data, the size that compares packed data and raw data, if packed data is less than raw data then send packed data, otherwise send raw data; At data receiver, the raw data that receives is directly stored, the packed data elder generation decompress(ion) that receives is stored again.
The compressibility of compression algorithm depends on the front and back correlativity of data, so data sending terminal compresses the reduction that processing data afterwards can not guarantee data volume fully.The drawback that improves in order to eliminate the rear data volume of compression, the data sending terminal among the present invention only sends the lower data of data volume.In like manner, data receiver need to be made corresponding self-adaptive processing according to the data of communication link transmission, namely exists not packed data processing and packed data to process two processes, and unpressed raw data is directly stored, and packed data elder generation decompress(ion) is stored again.
In addition, in one embodiment, the processing mode of the present invention's whole decompress(ion) after data receiver can select the data less to original data volume to receive the packed data of all segmentations, to the processing mode of larger each segmentation difference decompress(ion) of the data of original data volume, thereby further promoted the response speed of communicating by letter.
The compression algorithm of routine of can selecting of the present invention is compressed data.But because the Lattice display model of LED display is very high to the requirement of data accuracy aspect, therefore in a kind of preferred embodiment, adopted a kind of lossless compression algorithm, to guarantee the consistance of data compression front and back.
Below by the Application Example of the present invention in the LED display system, data transmission method of the present invention and system are described.
Fig. 1 is composition and the data flow synoptic diagram of LED display system of the present invention.Referring to Fig. 1, this LED display system comprises: display control module 101, LED control panel 102, storer 103 and LED display 104.Described display control module 101 is arranged in the display control apparatus 100, can be mounted in the program on the display control apparatus, and this display control apparatus 100 can be the equipment that computing machine, palm PC even mobile phone etc. have data-handling capacity.Described display control module 101 can send compression and unpressed data to LED control panel 102 for showing generation and the transmitting terminal of data.Described LED control panel 102 is for showing the receiving end of data, be used for receiving the demonstration data that display control module 101 transmission come, reply feedback information and other correlation parameter information to display control module 101, and the original dot matrix that will obtain shows that data store storer 103 into, last LED control panel 102 reading displayed data and output to LED display 104 and show from storer 103.
Fig. 2 is that data transmission processing method of the present invention is at the detail flowchart of data sending terminal.Referring to Fig. 2, this flow process specifically comprises:
The communication protocol that step 202, display control module adopt according to present embodiment and the composition structure that shows data generate the original dot matrix that needs send to the LED control panel with the displaying contents conversion of adding and show data.
Whether step 204, display control module judge packed data less than raw data, and namely whether compressibility is less than 1, and if it is execution in step 205, otherwise execution in step 206.
Fig. 3 is that data transmission processing method of the present invention is at the detail flowchart of data receiver.Described data receiver is the LED control panel, and referring to Fig. 3, this flow process specifically comprises:
Whether the data that step 302, judgement are received are packed data, and if so, then execution in step 303, otherwise, execution in step 305.Concrete determination methods can have multiple, for example most typically a kind ofly is, whether when data sending terminal sends data, adding in packet is the sign of packed data, for example identifies 1 and is packed data, and sign 0 is raw data.
Fig. 4 is that data transmission processing method of the present invention sends in the situation of data the detail flowchart of data receiver in segmentation.Referring to Fig. 4, this flow process specifically comprises:
Whether the segment data that step 402, judgement are received is packed data, and if so, then execution in step 403, otherwise, execution in step 411.
Step 403, judging whether the free memory capacity of LED control panel allows whole decompress(ion), is execution in step 404 then, otherwise execution in step 407.Concrete determination methods is herein: whether the length of the raw data of the packed data that relatively receives less than the free memory capacity of LED control panel, if it is allows whole decompress(ion), otherwise does not allow whole decompress(ion).The length of described raw data can be added the field that is used for sign raw data length in segment data packet by data sending terminal when sending segment data, data receiver obtains the length of raw data according to this field.
Step 404, judge the current complete packed data of whether receiving, if it is execution in step 405, continue to receive lower one piece of data otherwise return step 401.Concrete determination methods is herein: the length of the cumulative segmentation packed data of having received, judge whether accumulated value equals the length of packed data, if equal then judge the current complete packed data of having received, otherwise judge and also do not receive complete packed data.The length of described packed data also can be identified with specific field in the segment data packet that sends by data sending terminal, and data receiver obtains the length of packed data according to this field.
Step 409, judge whether the current segmentation packed data of receiving is last segmentation packed data, and if so, then execution in step 410, continue to receive next section segment data otherwise return step 401.Concrete determination methods is herein: the length of the cumulative segmentation packed data of having received, judge whether accumulated value equals the length of packed data, if equal then judge currently to have received last segmentation packed data, otherwise judge that current segmentation packed data is not last segmentation packed data.
Fig. 5 is a kind of embodiment synoptic diagram of data transmission processing system of the present invention.This data transmission and processing can be carried out above-mentioned data transmission processing method.Referring to Fig. 5, this data transmission processing system comprises: data sending terminal 510 and data receiver 520, wherein:
Described data sending terminal 510 comprises compression module 511, comparison module 512 and sending module 513; Described compression module 511 is used for packed data; Described comparison module 512 is used for the relatively size of packed data and raw data, if packed data less than raw data then trigger described sending module 513 and send packed datas, sends raw data otherwise trigger described sending module 513.
Described data receiver 520 comprises receiver module 521, data type judge module 522 and decompression module 523; Described data type judge module 522 is used for judging the data type that described receiver module 521 is received, if raw data (it is raw data or packed data that special byte representation is arranged in packet) then directly is stored in described raw data in the storer, if packed data then triggers described this packed data of decompression module 523 decompress(ion)s, again the data behind the decompress(ion) are stored in the storer.
Fig. 6 is with the embodiment synoptic diagram of segment transmissions function in the data transmission processing system of the present invention.Referring to Fig. 6, this data transmission processing system also further comprises segmentation module 614 in described sending module 613 except having the module described in Fig. 5, is used for data to be sent are carried out segmentation, and carries out the segmentation transmission by sending module 613.
As shown in Figure 6, the decompression module 623 in the described data receiver 620 further comprises decompress(ion) mode judge module 631, global solution die block 632 and segmentation decompression module 633.Described decompress(ion) mode judge module 631 is then to trigger global solution die block 632 for the packed data whether the free memory capacity of judging receiving end allows whole decompress(ion) to receive, otherwise triggers segmentation decompression module 633; Described global solution die block 632 is used for after receiving each segmentation packed data the whole decompress(ion) of packed data and passes to memory stores; Described segmentation decompression module 633 is used for segmentation decompress(ion) each section packed data and passes to the memory fragmentation storage.
The invention also discloses the LED display system of using above-mentioned data transmission processing system.Referring to Fig. 1, this LED display system comprises display control module 101, LED control panel 102, storer 103 and LED display 104.
Described display control module 101 comprises Fig. 5 and the included content of data sending terminal shown in Figure 6 as the generation and the transmitting terminal that show data.Specifically comprise: compression module, comparison module and sending module; Described compression module is used for packed data; Described comparison module is used for the relatively size of packed data and raw data, if packed data less than raw data then trigger described sending module and send packed data, sends raw data otherwise trigger described sending module.Sending module in the described display control module further comprises segmentation module, is used for data to be sent are carried out segmentation, carries out segmentation by described sending module and sends.
Described LED control panel 102 comprises Fig. 5 and the included content of data receiver shown in Figure 6 as the receiving end that shows data.Specifically comprise receiver module, data type judge module and decompression module; Described data type judge module is used for judging the data type that described receiver module is received, if raw data then triggers the directly described raw data of storage of described storer, if packed data then triggers described this packed data of decompression module decompress(ion), again by the data behind the described memory stores decompress(ion).
Decompression module in the described LED control panel 102 further comprises decompress(ion) mode judge module, global solution die block and segmentation decompression module; Described decompress(ion) mode judge module is then to trigger described global solution die block, otherwise triggers described segmentation decompression module for the packed data whether memory size of judging the LED control panel allows whole decompress(ion) to receive; Described global solution die block is used for after receiving each segmentation packed data the whole decompress(ion) of packed data and passes to memory stores; Described segmentation decompression module is used for segmentation decompress(ion) each section packed data and passes to the memory fragmentation storage.
Described LED control panel 102 at last can read memory 103 the demonstration data and export to LED display 104 and show.
The above is preferred embodiment of the present invention only, is not for limiting protection scope of the present invention.
Claims (4)
1. a data transmission processing method is characterized in that, may further comprise the steps:
A, at the data sending terminal packed data, the size of packed data and raw data relatively, if packed data less than raw data then segmentation sends packed data, otherwise segmentation sends raw data;
B, at data receiver segmentation receive data, the raw data that receives is directly stored, the packed data that receives elder generation decompress(ion) is stored again;
Wherein, the described packed data elder generation decompress(ion) that receives is stored again comprises: whether the length of the raw data of the packed data that relatively receives is less than the free memory capacity, if so, then allow whole decompress(ion), after receiving each segmentation packed data, the whole decompress(ion) of packed data is also stored; Otherwise, do not allow whole decompress(ion), segmentation decompress(ion) each section packed data and fragmented storage;
Judge whether that receiving each segmentation packed data is: the length of the cumulative segmentation packed data of having received, judge whether accumulated value equals the length of packed data, if equal then judge the current complete packed data of having received, otherwise judge and also do not receive complete packed data;
The length of described packed data is identified with specific fields in the segment data packet that sends by data sending terminal.
2. method according to claim 1 is characterized in that,
Before steps A, the method further comprises: becoming original dot matrix to show data data-switching to be sent, is that original dot matrix shows data in raw data described in the steps A;
After step B, the method further comprises: read described original dot matrix and show that data output to the LED display screen and show from storer.
3. a data transmission processing system is characterized in that, comprises data sending terminal and data receiver, wherein:
Described data sending terminal comprises compression module, comparison module and sending module; Described compression module is used for packed data; Described comparison module is used for the relatively size of packed data and raw data, if packed data less than raw data then trigger described sending module and send packed data, sends raw data otherwise trigger described sending module;
Further comprise segmentation module in the described sending module, be used for data to be sent are carried out segmentation, carry out segmentation by sending module and send;
Described data receiver comprises receiver module, data type judge module and decompression module; Described data type judge module is used for judging the data type that described receiver module is received, if raw data then directly is stored in described raw data in the storer, if packed data then triggers described this packed data of decompression module decompress(ion), again the data behind the decompress(ion) are stored in the storer;
Decompression module in the described data receiver further comprises decompress(ion) mode judge module, global solution die block and segmentation decompression module;
Described decompress(ion) mode judge module is then to trigger the global solution die block for the packed data whether the free memory capacity of judging receiving end allows whole decompress(ion) to receive, otherwise triggers the segmentation decompression module;
Described global solution die block is used for after receiving each segmentation packed data the whole decompress(ion) of packed data and passes to memory stores; Wherein, judge whether that receiving each segmentation packed data is: the length of the cumulative segmentation packed data of having received, judge whether accumulated value equals the length of packed data, if equal then judge the current complete packed data of having received, otherwise judge and also do not receive complete packed data; The length of described packed data is identified with specific fields in the segment data packet that sends by data sending terminal;
Described segmentation decompression module is used for segmentation decompress(ion) each section packed data and passes to the memory fragmentation storage.
4. a LED display system comprises display control module, LED control panel, storer and LED display, it is characterized in that,
Described display control module comprises compression module, comparison module and sending module as the generation and the transmitting terminal that show data; Described compression module is used for packed data; Described comparison module is used for the relatively size of packed data and raw data, if packed data less than raw data then trigger described sending module and send packed data, sends raw data otherwise trigger described sending module;
Further comprise segmentation module in the described sending module, be used for data to be sent are carried out segmentation, carry out segmentation by described sending module and send;
Described LED control panel comprises receiver module, data type judge module and decompression module as the receiving end that shows data; Described data type judge module is used for judging the data type that described receiver module is received, if raw data then triggers the directly described raw data of storage of described storer, if packed data then triggers described this packed data of decompression module decompress(ion), again by the data behind the described memory stores decompress(ion);
Decompression module in the described LED control panel further comprises decompress(ion) mode judge module, global solution die block and segmentation decompression module;
Described decompress(ion) mode judge module is then to trigger described global solution die block, otherwise triggers described segmentation decompression module for the packed data whether memory size of judging the LED control panel allows whole decompress(ion) to receive;
Described global solution die block is used for after receiving each segmentation packed data the whole decompress(ion) of packed data and passes to memory stores; Wherein, judge whether that receiving each segmentation packed data is: the length of the cumulative segmentation packed data of having received, judge whether accumulated value equals the length of packed data, if equal then judge the current complete packed data of having received, otherwise judge and also do not receive complete packed data; The length of described packed data is identified with specific fields in the segment data packet that sends by data sending terminal;
Described segmentation decompression module is used for segmentation decompress(ion) each section packed data and passes to the memory fragmentation storage.
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| CN102129838B (en) * | 2011-04-28 | 2013-01-23 | 深圳市天微电子有限公司 | LED (Light-Emitting Diode) display data processing method and device |
| US9894421B2 (en) | 2012-10-22 | 2018-02-13 | Huawei Technologies Co., Ltd. | Systems and methods for data representation and transportation |
| CN104811265B (en) * | 2014-01-29 | 2018-12-18 | 上海数字电视国家工程研究中心有限公司 | The packaging method and de-encapsulation method of base band frame |
| CN106328046B (en) * | 2015-07-09 | 2018-11-30 | 西安诺瓦电子科技有限公司 | LED display drive control method |
| CN106696483B (en) * | 2015-11-16 | 2019-03-01 | 北大方正集团有限公司 | The control method and device of ink-jet printing system, ink-jet printing system |
| CN106652891B (en) * | 2016-12-26 | 2019-03-22 | 西安诺瓦电子科技有限公司 | Scanning card |
| CN108446300B (en) * | 2018-01-26 | 2021-04-09 | 北京奇虎科技有限公司 | Data information scanning method and device |
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| JP2857842B2 (en) * | 1995-02-15 | 1999-02-17 | セイコープレシジョン株式会社 | Transmission data storage method |
| US20060077412A1 (en) * | 2004-10-11 | 2006-04-13 | Vikram Phogat | Method and apparatus for optimizing data transmission costs |
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| CN1334948A (en) * | 1998-12-01 | 2002-02-06 | 格姆普拉斯公司 | Chip card loadable with compressed data |
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