CN102800270A - 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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- CN102800270A CN102800270A CN2011101387893A CN201110138789A CN102800270A CN 102800270 A CN102800270 A CN 102800270A CN 2011101387893 A CN2011101387893 A CN 2011101387893A CN 201110138789 A CN201110138789 A CN 201110138789A CN 102800270 A CN102800270 A CN 102800270A
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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, relate in particular to a kind of data quick real-time update displayed method that is applied to the train passenger information display of occasions such as station, subway, train.
Background technology
In recent years, the Customer information display is widely used on station, subway, the train, as the carrier of playing information such as train speed per hour, website, temperature, advertisement.Fig. 1 is a Customer information display system architectures block diagram.The Customer information display system comprises the cab system controller, Monitor information transponder and Customer information display.
1, system controller
Sending controling instruction, and the data that the train various device is replied are handled.
2, Monitor information transponder
Monitor information transponder is mainly used in the steering order that the in-time distribution system controller sends over.And the data that the train various device is replied send to system controller.
3, Customer information display
Customer information display (when not being in the program updates state) is used for receiving some steering orders that Monitor information transponder is sent.Carry out and reply data according to steering order.
Character of the every demonstration of display all must receive the corresponding display message that comprises character display.And character display generally adopts the dot character coded system, the encoded digital information of the real-time reading displayed character of Customer information display.Display message also can comprise look screen information usually.Look screen information is meant the character color of displaying contents, adopts redly, and the LED character pattern that green two LED luminotrons constitute can make character point demonstrate red, green, three kinds of colors of orange, and the prior art screen information of checking colors is encoded separately.Can find out that the frame steering order word length that the technical scheme display of prior art train passenger information display data in real time update method is received is longer, it is bigger that character demonstration simultaneously takies storage space, and real-time is bad.Cause the real-time display speed of train passenger information display Data Update not high thus, communication speed is slower, and efficient is lower.
Because the singularity of vehicle-mounted Customer information display demand, for guaranteeing that communication fast with reliable, need communication data is carried out some processing, thereby reduces the communication bit number significantly, under the same bit error rate, communication speed is faster like this.Therefore, a kind of data quick real-time update displayed method of new train passenger information display is provided, under the same bit error rate, reduces the bit number of communication transmission greatly, the speed and the efficient that improve communication become a technical matters that needs to be resolved hurrily.
Summary of the invention
The purpose of this invention is to provide a kind of train passenger information display data in real time update method, it is longer that this method can solve existing train passenger information display data in real time update method steering order word length, and it is bigger that the character demonstration takies storage space; Real-time is bad; Communication speed is slower, and the technical matters that efficient is lower is under the same bit error rate; Reduce the bit number of communication transmission greatly, improve the speed and the efficient of communication.
The present invention specifically provides a kind of embodiment of train passenger information display data in real time update method; A kind of train passenger information display data in real time update method; This method may further comprise the steps: control module is handled the data of communication module transmission, and communication module receives the steering order of control module, and reads the data of memory module according to the data of communication module transmission; Output control signals to display module, thus real-time video data information; The frame steering order that display module is received comprises demonstration steering order, character display data and look screen information; With the character display data of immobilized substance with exist in the memory module; Utilize in the coding standard unemployed type region-position code that the character display data of immobilized substance are encoded, make the character display data of every immobilized substance all have the class region-position code of a correspondence to represent.
As the further embodiment of a kind of train passenger information display of the present invention data in real time update method, the character display data coding standard of immobilized substance adopts GB2312 region-position code standard.
As the further embodiment of a kind of train passenger information display of the present invention data in real time update method; Use the agreement word length that the character display data of immobilized substance are stored in the memory module, said agreement word length is chosen the maximal value of the character display data length of every immobilized substance.
As the further embodiment of a kind of train passenger information display of the present invention data in real time update method; Character display data to dynamic content adopt region-position code to encode; When control module is handled the data of communication module transmission; If control module receives the region-position code data, then from memory module, read the dot array data of a character; If control module type of receiving region-position code data then read the dot array data of arranging word length from memory module.
As the further embodiment of a kind of train passenger information display of the present invention data in real time update method, look screen information adopts two most significant digits of region-position code in the GB2312 standard to carry out coded representation.As preferred embodiment a kind of, look screen information further adopt in the GB2312 standard two most significant digits of region-position code to carry out two codings to represent that respectively corresponding character is shown as orange, red or green.
As the further embodiment of a kind of train passenger information display of the present invention data in real time update method, it is fixing demonstrations or dynamically demonstration that the demonstration steering order that display module is received is used for controlling the characters displayed data.
As the further embodiment of a kind of train passenger information display of the present invention data in real time update method, the frame steering order that display module is received also comprises check information.
As the further embodiment of a kind of train passenger information display of the present invention data in real time update method, the character display data of dynamic content comprise site information, information and compartment information; The character display data of immobilized substance comprise temperature information and velocity information.
Through the embodiment of a kind of train passenger information display of embodiment of the present invention data in real time update method, the steering order word length that has solved existing train passenger information display data in real time update method existence is longer, and it is bigger that the character demonstration takies storage space; Real-time is bad; Communication speed is slower, and the technical matters that efficient is lower makes information data be presented under the same bit error rate; Greatly reduce the bit number of communication transmission, improved the speed and the efficient of communication.
Description of drawings
In order to be illustrated more clearly in the embodiment of the invention or technical scheme of the prior art; To do to introduce simply to the accompanying drawing of required use in embodiment or the description of the Prior Art below; Obviously, the accompanying drawing in describing below only is some embodiments of the present invention, for those of ordinary skills; Under the prerequisite of not paying creative work, can also obtain other accompanying drawing 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
To combine the accompanying drawing in the embodiment of the invention below, the technical scheme in the embodiment of the invention is carried out clear, intactly description, obviously, described embodiment only is a part of embodiment of the present invention, rather than whole embodiment.Based on the embodiment among the present invention, those of ordinary skills are not making the every other embodiment that is obtained under the creative work prerequisite, all belong to the scope of the present invention's protection.
Shown in accompanying drawing, provided a specific embodiment of the train passenger information display data in real time update method of using the present invention and forming, below in conjunction with accompanying drawing and specific embodiment 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 to other several module for power supply.Control module 1 is handled the data of communication module 2 transmission, and communication module 2 receives the steering order of control modules 1, and reads the data of memory module 3 according to the data of communication module 2 transmission, outputs control signals to display module 4, thus video data information in real time.
As a kind of typical embodiment of the present invention, the form of the frame steering order that display module 4 is received is following:
Show control, displayed entries, check information.
Show that it is fixing the demonstration or dynamic the demonstration that control is used for controlling data presented, accounts for 1 Byte.
Check information accounts for 1 Byte.
Displayed entries is the region-position code of video data, accounts for a plurality of Byte, and coding adopts the GB2312 standard.
The display module of Customer information display is the data of some immobilized substances most time showings, and like site information, (this car is listed as ban on opium-smoking and the opium trade to information entirely, washes 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, like temperature information, velocity information.Can be to this situation by the agreement word length (like 16 Chinese characters; The benefit 0 of 16 Chinese characters of less than; Surpass many storages that are divided into of 16 Chinese characters) with the data pre-storage of immobilized substance in memory module 3; And utilize the region-position code of not utilizing among the GB2312 that it is encoded, claim that these region-position codes are a type region-position code.The agreement word length obtains big more, and it is few more that the number of type region-position code can generate, and the bit number during communication also can correspondingly reduce, but the storage space of the memory module that needs also can be corresponding bigger.The optional leeway of storer of high capacity low price is bigger now; So the agreement word length is generally got maximal value; The length that is about to the data of every immobilized substance compares, and chooses maximal value, thereby the data that guarantee every immobilized substance all use a class region-position code to represent.When the data that communication is obtained are handled as then in memory module, read the dot array data of a Chinese character for region-position code, as then read the dot array data of agreement word length for type region-position code.
The color control of three looks screen also can take some bits.Because the most significant digit of GB2312 character area bit code all is 1 (region-position code like ' ' is " 0XB0,0XA1 ").Can make amendment to most significant digit, represent orangely with 11, represent redness with 01, represent green with 10, thereby realize color control easily.As the region-position code of revising back transmission " 0XB0,0XA1 " representes to show orange ' ' character; The region-position code of sending " 0X30,0XA1 " is represented ' ' character of exhibit red; Send the region-position code of " 0XB0,0X21 " and represent to show green ' ' character.Like this, when communication, can under the prerequisite that does not increase unnecessary bit, easily the color of single character be controlled, thereby in same screen, show the character of multiple color.
Can reduce the communication bit number greatly through as above two kinds of processing.Under the same bit error rate, communication speed is faster.For this most time showings of train be for the demand of the fixing data of content, can reduce the communication bit number more than 80%.Simultaneously, can under the prerequisite that does not increase unnecessary bit, easily the color of single character be controlled, thereby in same screen, show the character of multiple color.
The above only is preferred embodiment of the present invention, is not 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 of ordinary skill in the art; Do not breaking away under the technical scheme scope situation of the present invention; All the method for above-mentioned announcement capable of using and technology contents are made many possible changes and modification to technical scheme of the present invention, or are revised as the equivalent embodiment of equivalent variations.Therefore, every content that does not break away from technical scheme of the present invention, according to technical spirit of the present invention to any simple modification that above embodiment did, be equal to replacement, equivalence changes and modify, all still belong in the scope that technical scheme of the present invention protects.
Claims (10)
1. train passenger information display data in real time update method; It is characterized in that; This method may further comprise the steps: control module (1) is handled the data of communication module (2) transmission, and communication module (2) receives the steering order of control module (1), and reads the data of memory module (3) according to the data of communication module (2) transmission; Output control signals to display module (4), thus real-time video data information; The frame steering order that display module (4) is received comprises demonstration steering order, character display data and look screen information; With the character display data of immobilized substance with exist in the memory module (3); Utilize in the coding standard unemployed type region-position code that the character display data of immobilized substance are encoded, make the character display data of every immobilized substance all have the class region-position code of a correspondence to represent.
2. a kind of train passenger information display data in real time update method according to claim 1 is characterized in that: the coding standard of the character display data of said immobilized substance adopts GB2312 region-position code standard.
3. a kind of train passenger information display data in real time update method according to claim 1 and 2; It is characterized in that: use the agreement word length that the character display data of immobilized substance are stored in the memory module (3), said agreement word length is chosen the maximal value of the character display data length of every immobilized substance.
4. a kind of train passenger information display data in real time update method according to claim 3; It is characterized in that: the character display data to dynamic content adopt region-position code to encode; When control module (1) is handled the data of communication module (2) transmission; If control module (1) receives the region-position code data, then from memory module (3), read the dot array data of a character; If control module (1) type of receiving region-position code data then read the dot array data of arranging word length from memory module (3).
5. according to the described a kind of train passenger information display data in real time update method of arbitrary claim in the claim 1,2,4, it is characterized in that: said look screen information adopts two most significant digits of region-position code in the GB2312 standard to carry out coded representation.
6. a kind of train passenger information display data in real time update method according to claim 5 is characterized in that: it is fixing demonstrations or dynamically demonstration that the demonstration steering order that said display module (4) is received is used for controlling the characters displayed data.
7. a kind of train passenger information display data in real time update method according to claim 6, it is characterized in that: the frame steering order that said display module (4) is received also comprises check information.
8. a kind of train passenger information display data in real time update method according to claim 4, it is characterized in that: the character display data of said dynamic content comprise site information, information and compartment information.
9. a kind of train passenger information display data in real time update method according to claim 4, it is characterized in that: the character display data of said immobilized substance comprise temperature information and velocity information.
10. a kind of train passenger information display data in real time update method according to claim 5 is characterized in that: look screen information adopt two most significant digits of region-position code in the GB2312 standard to carry out two codings to represent that respectively corresponding character is shown as orange, red or green.
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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 |
-
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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