CN202084183U - Traffic guidance information display system based on map deformation information - Google Patents
Traffic guidance information display system based on map deformation information Download PDFInfo
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- CN202084183U CN202084183U CN2011201231999U CN201120123199U CN202084183U CN 202084183 U CN202084183 U CN 202084183U CN 2011201231999 U CN2011201231999 U CN 2011201231999U CN 201120123199 U CN201120123199 U CN 201120123199U CN 202084183 U CN202084183 U CN 202084183U
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Abstract
The utility model relates to a traffic guidance information display system based on map deformation information, which comprises a data statistics module, an image processing module, a map generation module and a display module, and the image processing module is connected with the data statistics module, the map generation module and the display module. Since the traffic guidance information display system based on the map deformation information is based on a deformed GIS (Geographic Information System) map, the system can adjust the direction of the map according to the location of an information release point, so that the map can accord with the main angle of view of a driver and mark the location of the driver, thereby the driver can conveniently determine the direction of the map, unnecessary bypasses or subsidiary roads can be omitted according to the need, so that the amount of information can be reduced, and thereby the driver can obtain needed road condition information in a short time.
Description
Technical field
The utility model relates to the traffic management technology field, and particularly traffic guidance information publishing technology field specifically is meant a kind of traffic guidance information exhibition system based on map distortion information.
Background technology
Distributing device in the traffic guidance information issuing system commonly used is a LED display.Compare with other outdoor display devices, LED display has clear superiority at aspects such as luminous intensity, luminescence efficiency, response speed, color, power consumption, reliability, life-span and adaptives capacity to environment, thereby becomes the important tool of issuing traffic induction information.
Classify according to Presentation Function, the LED display that is used for traffic guidance information issue can be divided into text display screen (variable information board), graphic display screen and video display screen etc., and corresponding traffic guidance mode has pure words to induce, figure is induced, co-induction and video are induced.The common pure words mode of inducing is generally used banded LED display, and its equipment price is comparatively cheap, and inducible system is simple, but the information published method is directly perceived inadequately, induces effect to be not so good as that figure is induced and co-induction.
The traffic guidance information issuing system is arranged at the busier highway section of traffic in the urban road usually, in order to show the real-time traffic information of peripheral path, avoids entering the highway section that blocks up to remind the driver, reaches the alleviation congestion in road, alleviates the effect of road travel pressure.
The common LED display that is used for co-induction generally is made up of the road indicator panel on screen substrate top and the Word message display screen of matrix underpart, the road indicator panel comprises the broadband bar screen that is used to represent the peripheral path shape, and the Word message display screen is made of LED lamp pack module, in order to show the Word message about road condition.Owing in the road indicator panel on top, only need utilize broadband bar screen to form the abstract shapes of peripheral path, therefore reduced the cost of whole co-induction LED screen, thereby made this type of co-induction screen in many cities, obtain using widely.But this type of co-induction screen also has its shortcoming, comprising: 1, the broadband bar screen in the screen of inducing at each crossing must customize, and implementation cost is higher; 2, when the peripheral path shape changes, bar screen in broadband just needs to change or make substantial change, brings bigger secondary cost thus; 3, induce in the screen at this type of usually, it is not to be made of LED lamp group that literal road name waits other fix information, but draws, and the broadband bar itself that constitutes with LED lamp group forms big luminance difference, can be difficult to recognize when night or sight are strong; 4, this type of co-induction screen displaying contents is single, can not be used to Show Picture, other induction informations such as video or format literal.
In the dynamic traffic inducing system of above-mentioned use monoblock LED screen, shown peripheral path road network figure is based on the true road network figure of GIS road network, consequent shortcoming is: real GIS road network figure draws according to the geographic coordinate of " Shang Nan, Xia Bei, Zuo Xi, You Dong ", in case this map be presented at a non-positive Northern Dynasties to road on, the driver can be difficult to recognize the direction of map; Simultaneously, real GIS road network figure draws according to real road, branch road or bypass is not accepted or rejected usually, and quantity of information is bigger, and figure is also comparatively complicated.Therefore, for the driver in running at high speed, be difficult at short notice the road information based on true GIS road network figure is carried out correct identification.
Simultaneously, along with the reduction of LED screen production cost, in some city, bring into use monoblock LED screen as the traffic guidance information delivery apparatus.Comprise the dual base color LED display or the full-color LED display screen that use monoblock.In the dynamic traffic inducing system of common use full-color LED display screen, the part of condition clock part and display text information when this full color display comprises demonstration road network part, demonstration.Traffic behavior and Word message that it can either show road network contain the traffic congestion that reflects road or a road conditions clock of unimpeded degree again, where necessary also can be full frame or part show the road conditions real time video image.Further, this type of LED screen can show the transport information of a plurality of zoness of different simultaneously, or switches in a plurality of zones, is Real-time Traffic Information more comprehensively to provide.Be not difficult to find out that this type of LED screen can overcome the shortcoming of above-mentioned co-induction screen fully.
The utility model content
The purpose of this utility model is to have overcome above-mentioned shortcoming of the prior art, provide a kind of driver of being convenient to obtain relevant road information at short notice, simple in structure, with low cost, dependable performance, widely used traffic guidance information exhibition system based on map distortion information.
In order to realize above-mentioned purpose, of the present utility model have a following formation:
Should be based on the traffic guidance information exhibition system of map distortion information, its principal feature is, described system comprises data statistics module, image processing module, map generation module and display module, and described data statistics module, map generation module and display module all are connected with described image processing module.
Should comprise traffic flow information interface unit and flow information processing unit based on the data statistics module described in the traffic guidance information exhibition system of map distortion information, described flow information processing unit is connected with described traffic flow information interface unit and described image processing module respectively.
Should be distortion GIS mapping device based on the map generation module described in the traffic guidance information exhibition system of map distortion information.
Should be LED display based on the display module described in the traffic guidance information exhibition system of map distortion information, described LED display can be dual base color LED display or full-color LED display screen.
Should comprise Geographic Information System processing unit and display interface unit based on the image processing module described in the traffic guidance information exhibition system of map distortion information, described Geographic Information System processing unit is connected with described data statistics module, map generation module and display interface unit respectively, and described display interface unit is connected with described display module with described Geographic Information System processing unit respectively.
Adopted the traffic guidance information exhibition system based on map distortion information of this utility model, it is by the distortion GIS map of map generation module generation about peripheral path, and deliver to image processing module, image processing module is according to each the road section traffic volume status information that obtains from data statistics module, after revising the color of respective stretch, it is delivered to the display module issue.Because the traffic guidance information of being issued is based on the GIS map of distortion, can be according to the position of information publishing point, adjust the direction of map, make its main perspective consistent, and mark the position at driver place, thereby make things convenient for driver certifying map direction with the driver, also can save unnecessary branch road or bypass as required, reduce quantity of information, make the driver in a short period of time, obtain needed road condition information.
Description of drawings
Fig. 1 is the structural representation of the traffic guidance information exhibition system based on map distortion information of the present utility model.
Fig. 2 is the design sketch of the formed distortion of map generation module GIS map in the utility model.
Fig. 3 utilizes the utility model to realize the effect synoptic diagram of traffic guidance information demonstration based on the traffic guidance information exhibition system of map distortion information.
Embodiment
In order more to be expressly understood technology contents of the present utility model, describe in detail especially exemplified by following examples.
See also shown in Figure 1ly, be a kind of embodiment of the traffic guidance information exhibition system based on map distortion information of the present utility model.This system comprises data statistics module, image processing module, map generation module and display module, and described data statistics module, map generation module and display module all are connected with described image processing module.Described map generation module is distortion GIS mapping device, and described display module is a LED display, and described LED display can be dual base color LED display or full-color LED display screen.
Wherein, described data statistics module comprises traffic flow information interface unit and flow information processing unit, and described flow information processing unit is connected with described traffic flow information interface unit and described image processing module respectively.Described traffic flow information interface unit is the conventional data transmission interface, and described flow information processing unit is a data processing chip.The conventional data transmission interface connects described data processing chip.This data statistics module also comprises the storer that connects described conventional data transmission interface and data processing chip.
Wherein, described image processing module comprises Geographic Information System processing unit and display interface unit, described Geographic Information System processing unit is connected with described data statistics module, map generation module and display interface unit respectively, and described display interface unit is connected with described display module with described Geographic Information System processing unit respectively.Described Geographic Information System processing unit is a picture processing chip, described display interface unit is the universal display interface, described picture processing chip connects the flow information processing unit (data processing chip) of described data statistics module, the distortion GIS mapping device and the described universal display interface of map generation module respectively, and connects described display module by this universal display interface.This image processing module also comprises the video memory that connects described picture processing chip.
In the middle of reality was used, included data statistics module and map generation module all can be corresponding to particular hardware and the circuit structures in this traffic guidance information exhibition system in the utility model, and be specific as follows:
Data statistics module---Information Statistics processing and pen recorder corresponding in the traffic guidance information exhibition system comprise central processing unit chip and storer etc.;
The map generation module---corresponding to information translation and the generating apparatus in the traffic guidance information exhibition system, comprise graphic process unit chip and graphics memory parts etc.;
Therefore each functional module and the functional unit in the utility model all exists corresponding hardware or circuit structure with it in actual traffic induction information display systems, and innovation part of the present utility model is the whole hardware composition and the framework of this traffic guidance information exhibition system.
Need to prove, each unit of the present utility model can both be corresponding to certain part of functions circuit of the pairing hardware of module under it, and be not to be a kind of simple logical organization of fabricating, rely on the hardware configuration in the traffic guidance information exhibition system also can realize corresponding system architecture and function fully, solve the corresponding techniques problem, and obtain the corresponding techniques effect.
The method of utilizing above-mentioned traffic guidance information exhibition system to carry out traffic guidance information issue based on map distortion information, comprising following steps:
(0) the distortion GIS mapping device of the data processing chip of data statistics module and map generation module obtains default highway section number table (tbRoadSection), shown in the similar following table 1 of described highway section number table, comprise highway section name (RoadName) field and corresponding with it highway section numbering (RoadID) field;
(1) the distortion GIS mapping device of map generation module generates the distortion GIS map of relevant road segments, and delivers to image processing module, may further comprise the steps:
(a) draw highway section figure layer (lyrRoadSection), comprise and draw each highway section object, and each highway section object distributed highway section numbering (RoadID) field and status information (FLAG) field, according to described highway section number table (tbRoadSection) the highway section numbering of each highway section object is write the highway section and number (RoadID) field;
(b) draw arrow plot layer (lyrArrow), this figure layer is based on described highway section figure layer (lyrRoadSection), comprise and draw the guiding arrow that is positioned at described highway section object end, draw the travel direction arrow of each highway section object, and draw current vehicle heading prompting arrow;
(c) draw current location figure layer (lyrOriginPoint), comprise that the current location of drawing the current position of expression vehicle indicates point, only comprise a circle, draw this figure layer separately and be because its painted may be different with other figure layer;
(d) draw highway section name figure layer (lyrWords), comprise the literal title of drawing each highway section object according to described highway section number table, and other literal that needs statement, the literal title is positioned at highway section one side, its width and highway section width should be similar, sufficiently clear when showing with assurance should guarantee that simultaneously literal has enough spaces, to keep its form;
(e) rendering context figure layer (lyrBackground) comprises the background colour of drawing distortion GIS map, is generally black and is convenient to the LED display demonstration;
(f) will be out of shape the picture processing chip that the GIS map is delivered to image processing module;
(2) data processing chip of data statistics module obtains traffic flow information;
(3) data processing chip of data statistics module generates the traffic state information in each highway section according to described traffic flow information, and delivers to the picture processing chip of image processing module, may further comprise the steps:
(a) generate link flow table (tbRoadTrafficFlux), described link flow table comprises highway section numbering (RoadID) field and this link flow (TrafficFlux) field of correspondence with it, according to described highway section number table the numbering in each highway section is write the highway section number field;
(b) in described link flow table, search corresponding record according to the highway section in each highway section numbering, and the flow information in this highway section of being obtained is write link flow field in the described record;
(c) generate the traffic state information in each highway section according to described link flow table;
(d) traffic state information in described each highway section is delivered to the picture processing chip of image processing module;
(4) picture processing chip of image processing module is revised the distortion GIS map of relevant road segments according to the traffic state information in described each highway section, and delivers to display module, may further comprise the steps:
(a) search corresponding highway section object according to the highway section in each highway section numbering, and the traffic state information in this highway section of being obtained is write in status information (FLAG) field in the object of described highway section;
(b) the Geographic Information System processing unit is revised the color of respective stretch object in the distortion GIS map according to the state information field of default traffic state information color rendering intent and described each highway section object;
(c) the Geographic Information System processing unit generates amended distortion GIS map picture, and delivers to the display interface unit, and described amended distortion GIS map picture is generally the picture of BMP form or JPG form;
(d) the display interface unit distortion GIS map picture that will receive is delivered to display module;
(e) the Geographic Information System processing unit generates text prompt information according to the traffic state information in each highway section, and delivers to the display interface unit;
(f) display module is delivered to the text prompt information that receives in the display interface unit;
(5) display module shows the distortion GIS map of modified relevant road segments;
(6) return above-mentioned steps (2).
Wherein, described highway section numbering (RoadID) field is 32 character type fields, and described status information (FLAG) field is the integer type field.
| The highway section name | The highway section numbering |
| Straight street, north (it is horizontal to close river → east) | 26312 |
| Change Long Xiang (before the horizontal stroke → office of east) | 59104 |
Table 1 highway section number table
The distortion GIS map that is produced after the process above-mentioned steps as shown in Figure 2.
Described traffic state information color rendering intent is as shown in table 2 below, and status information (FLAG) field is 0～3 integer, represents the color that different traffic behaviors is corresponding different respectively:
| FLAG | Corresponding implication | Color rendering intent |
| 0 | Traffic behavior the unknown | Green |
| 1 | Unimpeded | Green |
| 2 | Crowded | Yellow |
| 3 | Block up | Red |
The table 2 traffic behavior color rendering intent table of comparisons
Carry out the effect of traffic guidance information exhibition based on amended distortion GIS map and (represent that with different shadings difference is painted among the figure) as shown in Figure 3, also comprise text prompt information " it is congested in traffic at present to close west of a river road " among Fig. 3 about traffic behavior.
In application of the present utility model, the map generation module produces the distortion GIS map about peripheral path, and delivers to image processing module; Traffic flow information interface unit in the data statistics module writes the link flow table with it after receiving the traffic flow information of the relevant road that comes from magnitude of traffic flow collecting device.Described traffic flow information collecting device generally includes the video traffic flow collection equipment that is arranged at main highway section and is positioned at the flow collection server of control end.Subsequently, generate the traffic state information in each highway section, and deliver to image processing module according to the link flow table.Image processing module writes the traffic state information in each highway section of being obtained in the state information field in each highway section object, and revise the color of respective stretch object in the distortion GIS map according to this state information field and default traffic state information color rendering intent, afterwards, generate amended distortion GIS map picture, and deliver to the display module issue.
Adopted the traffic guidance information exhibition system based on map distortion information of this utility model, it is by the distortion GIS map of map generation module generation about peripheral path, and deliver to image processing module, image processing module is according to each the road section traffic volume status information that obtains from data statistics module, after revising the color of respective stretch, it is delivered to the display module issue.Because the traffic guidance information of being issued is based on the GIS map of distortion, can be according to the position of information publishing point, adjust the direction of map, make its main perspective consistent, and mark the position at driver place, thereby make things convenient for driver certifying map direction with the driver, also can save unnecessary branch road or bypass as required, reduce quantity of information, make the driver in a short period of time, obtain needed road condition information.Thereby overcome the existing shortcoming that is difficult to identification based on map in the dynamic traffic guidance information issuing system of GIS map.
In this instructions, the utility model is described with reference to its certain embodiments.But, still can make various modifications and conversion obviously and not deviate from spirit and scope of the present utility model.Therefore, instructions and accompanying drawing are regarded in an illustrative, rather than a restrictive.
Claims (6)
1. traffic guidance information exhibition system based on map distortion information, it is characterized in that, described system comprises data statistics module, image processing module, map generation module and display module, and described data statistics module, map generation module and display module all are connected with described image processing module.
2. the traffic guidance information exhibition system based on map distortion information according to claim 1, it is characterized in that, described data statistics module comprises traffic flow information interface unit and flow information processing unit, and described flow information processing unit is connected with described traffic flow information interface unit and described image processing module respectively.
3. the traffic guidance information exhibition system based on map distortion information according to claim 1, it is characterized in that, described image processing module comprises Geographic Information System processing unit and display interface unit, described Geographic Information System processing unit is connected with described data statistics module, map generation module and display interface unit respectively, and described display interface unit is connected with described display module with described Geographic Information System processing unit respectively.
4. the traffic guidance information exhibition system based on map distortion information according to claim 1 is characterized in that described display module is a LED display.
5. the traffic guidance information exhibition system based on map distortion information according to claim 4 is characterized in that described LED display is dual base color LED display or full-color LED display screen.
6. the traffic guidance information exhibition system based on map distortion information according to claim 1 is characterized in that, described map generation module is distortion GIS mapping device.
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| CN2011201231999U CN202084183U (en) | 2010-05-14 | 2011-04-22 | Traffic guidance information display system based on map deformation information |
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| CN201020194314 | 2010-05-14 | ||
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| CN2011201231999U CN202084183U (en) | 2010-05-14 | 2011-04-22 | Traffic guidance information display system based on map deformation information |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103150915A (en) * | 2013-02-05 | 2013-06-12 | 林祥兴 | Integral traffic information display device |
| CN110176048A (en) * | 2019-06-04 | 2019-08-27 | 河北瑞通公路配套设施有限公司 | A kind of traffic guidance map rendering method |
-
2011
- 2011-04-22 CN CN2011201231999U patent/CN202084183U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103150915A (en) * | 2013-02-05 | 2013-06-12 | 林祥兴 | Integral traffic information display device |
| CN110176048A (en) * | 2019-06-04 | 2019-08-27 | 河北瑞通公路配套设施有限公司 | A kind of traffic guidance map rendering method |
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Granted publication date: 20111221 |