CN102800270B - Data real-time updating method for train passenger information display - Google Patents
Data real-time updating method for train passenger information display Download PDFInfo
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- CN102800270B CN102800270B CN201110138789.3A CN201110138789A CN102800270B CN 102800270 B CN102800270 B CN 102800270B CN 201110138789 A CN201110138789 A CN 201110138789A CN 102800270 B CN102800270 B CN 102800270B
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Abstract
The invention discloses a data real-time updating method for a train passenger information display. A control method processes data transmitted by a communication module; the communication module receives a control instruction of the control module, reads data of a storage module according to the data transmitted by the communication module, outputs a control signal to a display module and displays data information in real time; a frame of control instruction received by the display module comprises a display control instruction, display character data and color screen information; the display character data of fixed content is stored into the storage module; and the display character data of the fixed content is encoded by using a similar zone bit code which is not used in an encoding standard, so that the display character data of each fixed content is represented by the corresponding similar zone bit code. By the method, the technical problems of relatively long word length of the control instruction, large storage space occupied by character displaying, low instantaneity, low communication speed and low efficiency of the conventional method are solved; and therefore, the bit number of communication transmission is greatly reduced, and the communication speed and the communication efficiency are improved.
Description
Technical field
The present invention relates to a kind of data display method, particularly relate to a kind of quick real-time update display packing of data being applied to the train passenger information display of the occasions such as station, subway, train.
Background technology
In recent years, Customer information display is widely used on station, subway, train, as the carrier playing the information such as train speed per hour, website, temperature, advertisement.Fig. 1 is Customer information display system architectures block diagram.Customer information display system comprises cab system controller, Monitor information transponder and Customer information display.
1, system controller
Sending controling instruction, and the data of the various device replied of train are processed.
2, Monitor information transponder
Monitor information transponder is mainly used in the steering order that in-time distribution system controller sends over.And the data of various for train device replied are sent to system controller.
3, Customer information display
Customer information display (when not being in program updates state) is used for receiving some steering orders that Monitor information transponder is sent.Perform according to steering order and reply data.
Display often shows a character all must receive the correspondence display information comprising display character.And show character and generally adopt dot character coded system, the encoded digital information of the real-time reading displayed character of Customer information display.Display information also can comprise look screen information usually.Look screen information refers to and adopts the character color of displaying contents red, and the LED character pattern that green two LED are formed can make character point present red, green, orange three kinds of colors, and prior art screen information of checking colors is encoded separately.Can find out, the frame steering order word length that the technical scheme display of prior art train passenger information display data real time updating method receives is longer, and Charactes Display takies storage space comparatively greatly simultaneously, and real-time is bad.Cause the real-time display speed of train passenger information display Data Update not high thus, communication speed is comparatively slow, and efficiency is lower.
Due to the singularity of vehicle-mounted Customer information display demand, for ensureing communication fast with reliable, need carry out some process to communication data, thus significantly reduce communication bit number, like this under the same bit error rate, communication speed is faster.Therefore, provide a kind of data of new train passenger information display quick real-time update display packing, under the same bit error rate, greatly reduce the bit number of communication transfer, the speed of raising communication and efficiency become a technical matters urgently to be resolved hurrily.
Summary of the invention
The object of this invention is to provide a kind of train passenger information display data real time updating method, it is longer that the method can solve existing train passenger information display data real time updating method steering order word length, it is larger that Charactes Display takies storage space, real-time is bad, communication speed is comparatively slow, and the technical matters that efficiency is lower, under the same bit error rate, greatly reduce the bit number of communication transfer, improve speed and the efficiency of communication.
The present invention specifically provides a kind of embodiment of train passenger information display data real time updating method, a kind of train passenger information display data real time updating method, the method comprises the following steps: the data of control module process communication module transmission, communication module receives the steering order of control module.The data of the digital independent memory module that control module is transmitted according to communication module, output control signals to display module, thus displaying data in real-time information.The frame steering order that display module receives comprises display and control instruction, Display Characters Per Frame certificate and look screen information, by the Display Characters Per Frame of immobilized substance according to prestoring in a storage module, utilize unemployed class region-position code in coding standard to the Display Characters Per Frame of immobilized substance according to encoding, the Display Characters Per Frame of every bar immobilized substance is represented according to there being a corresponding class region-position code.
As the further embodiment of a kind of train passenger information display data real time updating method of the present invention, the Display Characters Per Frame of immobilized substance adopts GB2312 region-position code standard according to coding standard.
As the further embodiment of a kind of train passenger information display data real time updating method of the present invention, use agreement word length by the Display Characters Per Frame of immobilized substance according to storage in a storage module, described agreement word length chooses the maximal value of Display Characters Per Frame according to length of every bar immobilized substance.
As the further embodiment of a kind of train passenger information display data real time updating method of the present invention, the Display Characters Per Frame of dynamic content is encoded according to employing region-position code, when the data of control module process communication module transmission, if control module receives region-position code data, then from memory module, read the dot array data of a character; If control module receives class region-position code data, then from memory module, read the dot array data of agreement word length.
As the further embodiment of a kind of train passenger information display data real time updating method of the present invention, look screen information adopts two most significant digits of region-position code in GB2312 standard to carry out coded representation.As one preferred embodiment, look screen information adopts two of region-position code in GB2312 standard most significant digits to carry out two codings to represent that corresponding Charactes Display is orange, red or green respectively further.
As the further embodiment of a kind of train passenger information display data real time updating method of the present invention, the display and control instruction that display module receives is used for controlling Display Characters Per Frame according to being fixing display or Dynamic Announce.
As the further embodiment of a kind of train passenger information display data real time updating method of the present invention, the frame steering order that display module receives also comprises check information.
As the further embodiment of a kind of train passenger information display data real time updating method of the present invention, the Display Characters Per Frame of immobilized substance is according to comprising site information, information and car information.The Display Characters Per Frame of dynamic content is according to comprising temperature information and velocity information.
By implementing the embodiment of a kind of train passenger information display data of the present invention real time updating method, the steering order word length solving the existence of existing train passenger information display data real time updating method is longer, it is larger that Charactes Display takies storage space, real-time is bad, communication speed is comparatively slow, and the technical matters that efficiency is lower, under making information data be presented at the same bit error rate, greatly reduce the bit number of communication transfer, improve speed and the efficiency of communication.
Accompanying drawing explanation
In order to be illustrated more clearly in the embodiment of the present invention or technical scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
Fig. 1 is the structure composition frame chart of train passenger information display system;
Fig. 2 is the structure composition frame chart of a kind of embodiment of train passenger information display of the present invention;
Fig. 3 is the display module structural representation that train passenger information display of the present invention adopts;
Wherein: 1-control module, 2-communication module, 3-memory module, 4-display module, 5-power module.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, be clearly and completely described the technical scheme in the embodiment of the present invention, obviously, described embodiment is only a part of embodiment of the present invention, instead of whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art, not making the every other embodiment obtained under creative work prerequisite, belong to the scope of protection of the invention.
As shown in drawings, give application the present invention and the specific embodiment of train passenger information display data real time updating method that formed, below in conjunction with the drawings and specific embodiments, technical scheme of the present invention is further described.
Train passenger information display as shown in Figure 2 comprises: control module 1, communication module 2, memory module 3, display module 4, power module 5.Wherein, power module 5 is used for other several module for power supply.Control module 1 processes the data that communication module 2 transmits, and communication module 2 receives the steering order of control module 1.The data of the digital independent memory module 3 that control module 1 is transmitted according to communication module 2, output control signals to display module 4, thus displaying data in real-time information.
Display module 4 is made up of some luminous points.Show a character and need 16*16 luminous point.What general train was commonly used is 8 words screens, namely needs 16*16*8 luminous point.Each luminous point is by red, and green two LED are formed.Can present red, green, orange (when red LED pipe and green LEDs pipe are lighted simultaneously) three kinds of colors.Adopt the mode of line scanning.Scanning a line need send 16*8bit data by control module, represents that this point is lighted, represent whether this is lighted with 0 with 1.What store in memory module is exactly the dot array data of 16*16 dot matrix word library.As shown in Figure 3 be the light emitting module of two characters.Each circular hole represents a luminous point, has two LED in each luminous point.8 words screens are combined into by 4 pieces of such light emitting modules.Monoblock 8 word screen all need not be changed when this jigsaw mode has not only facilitated production but also can ensure that certain luminous point damages, thus ensure the waste reducing material.
As a kind of typical embodiment of the present invention, the form of the frame steering order that display module 4 receives is as follows:
Display and control, displayed entries, check information.
Display and control is used for controlling Display Characters Per Frame according to being fixing display or Dynamic Announce, accounts for 1 Byte.
Check information accounts for 1 Byte.
Displayed entries is the region-position code of display data, accounts for multiple Byte, and coding adopts GB2312 standard.
The display module of Customer information display is the data of some immobilized substances in most time showing, and as site information, (this car arranges ban on opium-smoking and the opium trade to information entirely, wash one's hands, wash one's face and rinse one's mouth, 1,2,3,4,6,7,8 cars), the data of some on-fixed contents of fraction time showing, as temperature information, velocity information.Can by agreement word length (as 16 Chinese characters for this situation, less than the benefit 0 of 16 Chinese characters, be divided into many storages more than 16 Chinese characters) by the Display Characters Per Frame of immobilized substance according to being pre-stored in memory module 3, and utilize the region-position code do not utilized in GB2312 to encode to it, claim these region-position codes to be class region-position code.Agreement word length obtains larger, and it is fewer that the number of class region-position code can generate, and bit number during communication also can correspondingly reduce, but the storage space of the memory module of needs also can be corresponding larger.The optional leeway of storer of present Large Copacity low price is larger, so agreement word length generally gets maximal value, length by the data of every bar immobilized substance compares, and chooses maximal value, thus ensures that the data of every bar immobilized substance all represent by a class region-position code.As then read the dot array data of a Chinese character in a storage module for region-position code when the data obtained communication process, as then read the dot array data of arranging word length for class region-position code.
The color controlling of three look screens also can take some bits.Most significant digit due to GB2312 character area bit code is all the region-position code of 1(as ' ' is " 0XB0,0XA1 ").Can modify to most significant digit, represent orange with 11, represent red with 01, represent green with 10, thus realize color controlling easily.Region-position code as revised rear transmission " 0XB0,0XA1 " represents ' ' character that display is orange; The region-position code sending " 0X30,0XA1 " represents ' ' character that display is red; The region-position code sending " 0XB0,0X21 " represents ' ' character that display is green.Like this, when communication, under the prerequisite not increasing spare bits, easily the color of single character can be controlled, thus show the character of multiple color in same screen.
Communication bit number can be greatly reduced by as above two kinds of process.Under the same bit error rate, communication speed is faster.For this most time showing of train be the data that content is fixed demand for, can by communication bit number reduce more than 80%.Meanwhile, under the prerequisite not increasing spare bits, easily the color of single character can be controlled, thus show the character of multiple color in same screen.
The above is only preferred embodiment of the present invention, not does any pro forma restriction to the present invention.Although the present invention discloses as above with preferred embodiment, but and be not used to limit the present invention.Any those of ordinary skill in the art, do not departing under technical solution of the present invention ambit, the Method and Technology content of above-mentioned announcement all can be utilized to make many possible variations and modification to technical solution of the present invention, or be revised as the Equivalent embodiments of equivalent variations.Therefore, every content not departing from technical solution of the present invention, according to technical spirit of the present invention to any simple modification made for any of the above embodiments, equivalent replacement, equivalence change and modification, all still belongs in the scope of technical solution of the present invention protection.
Claims (10)
1. a train passenger information display data real time updating method, is characterized in that, the method comprises the following steps: the data that control module (1) process communication module (2) is transmitted, and communication module (2) receives the steering order of control module (1); The data of the digital independent memory module (3) that control module (1) is transmitted according to communication module (2), output control signals to display module (4), thus displaying data in real-time information; The frame steering order that display module (4) receives comprises display and control instruction, Display Characters Per Frame certificate and look screen information, by the Display Characters Per Frame of immobilized substance according to being pre-stored in memory module (3), utilize unemployed class region-position code in coding standard to the Display Characters Per Frame of immobilized substance according to encoding, the Display Characters Per Frame of every bar immobilized substance is represented according to there being a corresponding class region-position code.
2. a kind of train passenger information display data real time updating method according to claim 1, is characterized in that: the coding standard of the Display Characters Per Frame certificate of described immobilized substance adopts GB2312 region-position code standard.
3. a kind of train passenger information display data real time updating method according to claim 1 and 2, it is characterized in that: use agreement word length by the Display Characters Per Frame of immobilized substance according to being stored in memory module (3), described agreement word length chooses the maximal value of Display Characters Per Frame according to length of every bar immobilized substance.
4. a kind of train passenger information display data real time updating method according to claim 3, it is characterized in that: the Display Characters Per Frame of dynamic content is encoded according to employing region-position code, when the data that control module (1) process communication module (2) is transmitted, if control module (1) receives region-position code data, then from memory module (3), read the dot array data of a character; If control module (1) receives class region-position code data, then from memory module (3), read the dot array data of agreement word length.
5. according to a kind of train passenger information display data real time updating method in claim 1,2,4 described in arbitrary claim, it is characterized in that: described look screen information adopts two most significant digits of region-position code in GB2312 standard to carry out coded representation.
6. a kind of train passenger information display data real time updating method according to claim 5, is characterized in that: the display and control instruction that described display module (4) receives is used for controlling Display Characters Per Frame according to being fixing display or Dynamic Announce.
7. a kind of train passenger information display data real time updating method according to claim 6, is characterized in that: the frame steering order that described display module (4) receives also comprises check information.
8. a kind of train passenger information display data real time updating method according to claim 4, is characterized in that: the Display Characters Per Frame of described immobilized substance is according to comprising site information, information and car information.
9. a kind of train passenger information display data real time updating method according to claim 4, is characterized in that: the Display Characters Per Frame of described dynamic content is according to comprising temperature information and velocity information.
10. a kind of train passenger information display data real time updating method according to claim 5, is characterized in that: look screen information adopts two most significant digits of region-position code in GB2312 standard to carry out two codings to represent that corresponding Charactes Display is orange, red or green respectively.
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| CN201110138789.3A CN102800270B (en) | 2011-05-26 | 2011-05-26 | Data real-time updating method for train passenger information display |
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| CN201110138789.3A CN102800270B (en) | 2011-05-26 | 2011-05-26 | Data real-time updating method for train passenger information display |
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| US4837564A (en) * | 1985-05-07 | 1989-06-06 | Panafacom Limited | Display control apparatus employing bit map method |
| KR20080092143A (en) * | 2007-04-11 | 2008-10-15 | 전주대학교 산학협력단 | Display panel using afterimage effect and method for controlling the same |
| CN201336129Y (en) * | 2008-12-31 | 2009-10-28 | 杨翔 | LED vehicle display system |
| CN101713822A (en) * | 2008-10-03 | 2010-05-26 | 天宝导航有限公司 | System and method for masking visual compression artifacts in decoded video streams |
| CN201820276U (en) * | 2010-10-25 | 2011-05-04 | 北京交通大学 | Information displaying and recording instrument used in passenger train carriage |
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2011
- 2011-05-26 CN CN201110138789.3A patent/CN102800270B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4837564A (en) * | 1985-05-07 | 1989-06-06 | Panafacom Limited | Display control apparatus employing bit map method |
| KR20080092143A (en) * | 2007-04-11 | 2008-10-15 | 전주대학교 산학협력단 | Display panel using afterimage effect and method for controlling the same |
| CN101713822A (en) * | 2008-10-03 | 2010-05-26 | 天宝导航有限公司 | System and method for masking visual compression artifacts in decoded video streams |
| CN201336129Y (en) * | 2008-12-31 | 2009-10-28 | 杨翔 | LED vehicle display system |
| CN201820276U (en) * | 2010-10-25 | 2011-05-04 | 北京交通大学 | Information displaying and recording instrument used in passenger train carriage |
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Address after: 412001 Hunan Province, Zhuzhou Shifeng District Tian Xin era Road No. 169 Patentee after: ZHUZHOU CRRC TIMES ELECTRIC Co.,Ltd. Address before: 412001 Hunan Province, Zhuzhou Shifeng District Tian Xin era Road No. 169 Patentee before: ZHUZH CSR TIMES ELECTRIC Co.,Ltd. |
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