CN101976503A - Method for sending and receiving traffic information in real time - Google Patents
Method for sending and receiving traffic information in real time Download PDFInfo
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- CN101976503A CN101976503A CN 201010542011 CN201010542011A CN101976503A CN 101976503 A CN101976503 A CN 101976503A CN 201010542011 CN201010542011 CN 201010542011 CN 201010542011 A CN201010542011 A CN 201010542011A CN 101976503 A CN101976503 A CN 101976503A
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Abstract
The invention discloses a method for sending and receiving traffic information in real time. An information distribution center and a mobile receiving unit are comprised, the mobile receiving unit comprises a GIS (Geographic Information System) map special for urban traffic information distribution, and information sent out by the information distribution center is loaded on the map and then displayed in an image form. Based on the rules of more closing to the characteristic of the traffic information distribution and meeting the requirements of a driver on concerned road conditions and relevant information, an information distribution platform convenient for unified planning is provided, and meanwhile, the method can also reduce the cost and use cost on a terminal receiver of a traffic information distribution system. The invention meets the requirement of information distribution on output display, maximally reduces dependence on the embedded GIS system and the requirements on system resources, and reduces use cost at the same time. Saved software and hardware resources of a vehicle-mounted terminal can be further developed and used for performing the functions of a vehicle information center and stronger information service.
Description
Technical field
The present invention relates to the traffic-information service class in intelligent transportation system (ITS) field, relate to how to issue and receive in the traveler infosystem (ATIS---Advanced Traveller Information System) a kind of method of Real-time Traffic Information.
Background technology
Intelligent transport technology is infotech application technology in field of traffic, wherein both needed to take into full account and rationally utilized various modern information technologies, need to consider the characteristics of traffic environment self again, select effective with practical infotech, by innovation, just can accomplish high-level efficiency, low cost, form the good man-machine interaction mode simultaneously, get a desired effect.
The purpose of urban transportation information issue is to solve road conditions and the relevant information that the administrative staff paid close attention to of driving out.Traffic-information service is the market towards mass consumption, particularly terminal device.It is important seeking a rational solution, has both satisfied the needs of real system, has reduced cost again.
Existing Vehicular traffic information receiver normally replaces with the vehicle mounted guidance machine.Promptly utilize original guiding aircraft to add the message pick-up function of its networking, thereby realize receiving the function of Real-time Traffic Information.Therefore, it has complete gps signal reception and processing capacity, Embedded GIS (Geographic Information System) application system.This realization means obviously are fast effectively, and function also is more powerful, but also can face the problem of the following aspects simultaneously: the one, and in in-vehicle navigation apparatus, generalized information system has occupied a big chunk of equipment cost, and regularly will upgrade, use cost is also than higher.The 2nd, existing Embedded GIS platform and GIS application system have a lot of, mutually between and incompatible, will consider like this will set up a unified distribution platform that can hold different enterprise products in a city.The 3rd, the issue of urban transportation information has the characteristics of himself, the usually distribution of wagon flow, dredge with the practical topology structure of the netted road in city closely related, also closely related with traffic administration and people's driving behavior.And the display interface of GIS road does not fit like a glove with it in fact usually, and particularly the display interface under the large-scale map layer often can not satisfy the demand of reality.The not so difficult understanding of this point, navigation map designs for navigation Service, if want to make it also to meet the requirement of transport information issue fully, it is impossible that yes.
Summary of the invention
Goal of the invention: technical matters to be solved by this invention is at the deficiencies in the prior art, the method that provides a kind of Real-time Traffic Information to send and receive.
In order to solve the problems of the technologies described above, the invention discloses the method that a kind of Real-time Traffic Information sends and receives, comprise information distribution center and mobile receiving element, mobile receiving element contains the GIS map that is exclusively used in the issue of urban transportation information, and the information that described information distribution center is sent shows with image format after being carried on the described map.
Among the present invention, preferably, described map is a polar plot, transforms according to the urban GIS system to draw.
Among the present invention, preferably, described map comprises three figure layers: figure layer one is the city general view, comprises through street, the primary and secondary arterial highway in city, and the key node in turnover city; Figure layer two is the road network figure of subregion, city, comprises through street, primary and secondary arterial highway, and the branch road that is used for autos only; Figure layer three is localized road and detail view, comprises the road that is arranged in figure layer two regional area and node and alleyway, lane.
Among the present invention, preferably, the area of subregion, city is less than 1/10th of the city total area in the figure layer one in the figure layer two.
Among the present invention, preferably, form ID number by the highway section coding on each figure floor, comprise the property content in this highway section simultaneously, and the coordinate of highway section two-end-point.
Among the present invention, preferably, thereby the image of described three figure layers is stored in formation base map in the mobile receiving element after overcompression.
Among the present invention, preferably, described mobile receiving element makes the position of mobile receiving element be positioned at the center that image format shows map, and refreshes current location in real time by the mode that manually moves or the GPS receiving trap is located.
Among the present invention, preferably, described figure layer two is that the above figure of one deck constitutes.
The present invention is intended to propose a kind of urban transportation information issuing system that is exclusively used in, and both can satisfy transport information issue actual demand, can reduce mobile terminal cost and user's use cost again, the method for designing of the urban road GIS of also be more convenient for simultaneously unified and standard.
Beneficial effect: the present invention is from more pressing close to the characteristics of transport information issue, satisfying the administrative staff that drives out sets out to the demand of road conditions of being paid close attention to and the information of being correlated with, a kind of unified information promulgating platform of being convenient to plan is provided, and also is simultaneously to reduce the cost of traffic information distribution system terminal receiver and a kind of method of use cost.The invention provides and satisfy the output that information issue requires and show, reduced to greatest extent again, also reduced use cost simultaneously to the dependence of embedded GIS with to the requirement of system resource.The software and hardware resources of the car-mounted terminal that saves can further be developed the function and the function that is used for more powerful information service as the automobile information center.
Description of drawings
Below in conjunction with the drawings and specific embodiments the present invention is done further to specify, above-mentioned and/or otherwise advantage of the present invention will become apparent.
Fig. 1 is a real-time traffic information distribution system block diagram of the present invention.
Fig. 2 is the mobile receiving element and the real-time traffic information distribution system block diagram of band gps signal receiving function of the present invention.
Mobile receiving element and real-time traffic information distribution system block diagram that Fig. 3 is transformed by guiding aircraft for the present invention.
Fig. 4 is a TGIS hierarchical model of the present invention.
Fig. 5 is TGIS city map of the present invention and highway section definition example.
Embodiment
Concrete enforcement principle of the present invention is as follows:
1, at first, each city needs the GIS map (being designated hereinafter simply as TGIS) that is exclusively used in the issue of urban transportation information.The road in a city distributes always unique, though also exist the construction and the transformation of road, still metastable in certain period.What traveler infosystem (ATIS) was more paid close attention to for traveler is the road conditions information of the big flow of carrying, and this part is normally long as the cycle of the key road renewal in city, so the frequency that TGIS upgrades will be much smaller than the GIS of routine.
2, TGIS is a kind of polar plot, is transformed from a certain urban GIS system, and it has the part essential characteristic of GIS, but it need do suitable transformation according to the demand of information issue again.
3, from taking into account the angle of application purpose and simplified system, city TGIS is developed by complete urban transportation foundation drawing and forms.Can be divided into three figure layers, as shown in Figure 4, can satisfy the needs of information issue: (1) the superiors are the citywide general view, generally include through street, the primary and secondary arterial highway in city, and the key node that goes out of the city.Though this figure layer road network structure with walk upwards all consistently with GIS, have the character of synoptic diagram to a certain extent.Such as the bidirectional traffics on road usually are different, at this moment need it is widened and differentiating uplink and downlink road or the like.Because the screen display size of mobile unit is limited, the road (mainly referring to subsidiary road) that comprises which reality can be selected according to the actual conditions in individual city, basic principle is to consider the flow distribution situation of the main supporting region of the whole city magnitude of traffic flow and the distinguishable degree of display interface, and the primary demand that satisfies driver and crew.(2) middle layer is the road network in this a certain zone, city.This layer can comprise through street, primary and secondary arterial highway, and the branch road that can be used for autos only.(3) the 3rd layers is localized road and details thereof, except can showing the aforementioned road and node that is positioned at these some areas, even can comprise alleyway, lane etc.(4) the actual ratio chi of above-mentioned three figure layers can be different because of the size of different cities.From realizing the primary demand of traffic-information service,, but do not get rid of the expansion of carrying out along with the increase of demand for the user provides these three basic display interfaces in general much of that.Such as the second layer,,, it is divided into two figure layers also is fine in order to bring into play better visual effect for some megalopolis or the concentrated especially zone of some busy roads.Usually for each city, has only a cover TGIS.
4, on foundation drawing, form ID number by the highway section coding, comprise the base attribute content in this highway section simultaneously, comprise the coordinate of highway section two-end-point at least.Coding rule is so that be criterion for the user provides rational travel route and is convenient to database managed.
5, portable terminal embeds TGIS.If in order thoroughly to break away from dependence to GIS, three of TGIS figure layers (can be noticed that the image here is different with common image with image, it also comprises some points of being associated with it or the definition and the attribute of line) mode deposit in after compression in the internal memory of built-in terminal, also comprise the coding and the attribute in all highway sections simultaneously, be called base map.Can store the base map in a plurality of cities in machine.
6, in the ATIS system, the service of transport information relates generally to substances such as traffic information and traffic events, owing to possessed base map in the terminating machine, only transmits the sign of road, relevant attribute data gets final product.Information distribution center is according to the TGIS foundation drawing, with source data according to certain format organization after, be sent in the mobile equipment unit through wireless transmission channel.
7, portable terminal is received after the data treatedly, can require according to user's selection to give the user relevant traffic information display on a certain figure layer.
8, along with the moving of vehicle, shown graphical interfaces also should have two kinds of methods to provide along with moving: 1. manual mode, and the user only need click front region just can move screen center's (equipment should be with touch-screen) to; If 2. equipment is equipped with GPS receiving trap (Fig. 2), through certain processing, can make the current position of vehicle be in the center of display screen, and along with the mobile automatic scrubbing brush screen of vehicle.
Above-mentioned implementation provides and has satisfied the output demonstration that the information issue requires, and has reduced the requirement to the terminal software and hardware resources simultaneously again to greatest extent, has also reduced use cost simultaneously.The software and hardware resources of the car-mounted terminal that saves can be used as the function and the function that be used for more powerful information service of further exploitation as the automobile information center.Weak point is that navigation feature of the present invention is very limited.
If 10 mobile units are wanted to increase navigation feature or formed by the guiding aircraft transformation, method provided by the invention is: by means of the driven by engine of Embedded GIS platform, help the reception of the Real-time Traffic Information among the present invention to handle and demonstration output.But in this generalized information system, should increase by three that transform through secondary development, meet the figure layer that above-mentioned base map requires, and in this generalized information system, it is designed to an independent MFC, by data base management system (DBMS) to its separately management call.In the display driver of application, an information service/navigation selection menu can be set, can switch by customer requirements at two kinds of different applied environments of information service and navigation to guarantee board units.
Embodiment:
1, selects a suitable generalized information system, form the TGIS foundation drawing in this city, comprise road that the city is all and relevant with the transport information issue and data resources such as entity that the driver was concerned about through secondary development.
2, select suitable engineer's scale, make three figure layers of city TGIS, as shown in Figure 4.
(1) citywide general view generally includes the secondary arterial highway of through street, major trunk roads and part in city and the key node that goes out of the city.Because the display interface of mobile device is limit, the main target of this one deck can only be positioned to reflect roughly the roughly situation of whole city traffic behavior distribution.Consider the characteristics of transport information issue and visual interface preferably simultaneously, generally answer differentiating uplink and downlink, can consider, but must not change the coordinate information of respective stretch the different scalefactor of some zone employing.
(2) middle layer is the road network in this a certain zone, city, can comprise through street, primary and secondary arterial highway, and the branch road that can be used for autos only.This layer is mainly driver and crew vehicle loca peripheral region traffic information and traffic events information on services is provided.Shown area size depends on factors such as what of the dense degree of road network and display picture element point.If have only in the system of TGIS at mobile device, as shown in Figure 1, along with moving of vehicle, shown graphical interfaces also should be along with moving, have two kinds of methods to provide: 1. manual mode, the user only need click front region just can move screen center's (equipment should be with touch-screen) to; If 2. equipment is equipped with the GPS receiving trap, as Fig. 2, because TGIS itself also is a kind of polar plot, the reference coordinate in a city is selected, as the E among Fig. 5, F, G, H point, add the position coordinates of current vehicle, through certain processing, can make the current position of vehicle be in the center of display screen, and along with the mobile automatic scrubbing brush screen of vehicle.
For some megalopolis or the concentrated especially zone of some busy roads,, this layer is divided into two figure layers also is fine in order to bring into play better effect.
(3) the 3rd layers is localized road and details thereof, except can showing the aforementioned road and node that is positioned at these some areas, also comprises alleyway, lane etc. and other entity contents.Its objective is to the user more detailed guide service information is provided.So the 3rd layer of complete foundation drawing that is only city TGIS, 1,2 layer forms its reprocessing.
3, on foundation drawing, form ID by the highway section coding, as Fig. 5, comprise the base attribute content in this highway section simultaneously, comprise the coordinate of highway section two-end-point at least.A, B among the figure ... the H point all is points of band coordinate attributes.Coding rule is so that be criterion for the user provides rational travel route and is convenient to database managed.The road that it is pointed out that present many cities is compound, promptly except surface road, also has tunnel or multilayer overhead, and tackle different road surfaces and give different codings this moment, and in general their ID and association attributes are different.In mobile device, can select by different selector buttons.
4, portable terminal (promptly mobile receiving element) embeds TGIS.Three figure layers of mode with image of TGIS are deposited among the Flash Memory of built-in terminal after compression, the coding and the attribute that have also comprised all highway sections in the database, be called the base map database, set up a simple base map database management module simultaneously, so that and application layer linking.Can store the base map in a plurality of cities in machine.
5, in the ATIS system, the service of transport information relates generally to substances such as traffic information and traffic events, owing to possessed base map in the terminating machine, only transmits the identification code of road, relevant attribute data gets final product.Information distribution center is according to the TGIS foundation drawing, with source data according to certain format organization after, be sent in the mobile equipment unit through wireless transmission channel.
6, portable terminal is received after the data treatedly, can require according to user's selection to give the user relevant traffic information display on a certain figure layer.
If 7 mobile units are wanted to increase navigation feature or formed by the guiding aircraft transformation, as shown in Figure 3, at this moment mobile unit has possessed embedded GIS.By means of the driven by engine of Embedded GIS platform, help the reception of the Real-time Traffic Information among the present invention to handle and demonstration output.It is considered herein that in this generalized information system, it also is necessary setting up relatively independent TGIS.Its implementation is, set up TGIS basis picture library according to above-mentioned design process, and it is designed to an independent class libraries, by the management system among the GIS its independent management is called, in the display driver of application, an information service/navigation selection menu is set, can switches at two kinds of different applied environments of information service and navigation to guarantee board units.
The thinking and the method for the method that the invention provides a kind of Real-time Traffic Information transmission and receive; the method and the approach of this technical scheme of specific implementation are a lot; the above only is a preferred implementation of the present invention; should be understood that; for those skilled in the art; under the prerequisite that does not break away from the principle of the invention, can also make some improvements and modifications, these improvements and modifications also should be considered as protection scope of the present invention.The all available prior art of each ingredient not clear and definite in the present embodiment is realized.
Claims (8)
1. the Real-time Traffic Information method that sends and receive, comprise information distribution center and mobile receiving element, it is characterized in that, mobile receiving element contains the GIS map that is exclusively used in the issue of urban transportation information, and the information that described information distribution center is sent shows with image format after being carried on the described map.
2. the method that a kind of Real-time Traffic Information according to claim 1 sends and receives is characterized in that described map is a polar plot, transforms according to the urban GIS system to draw.
3. the method that a kind of Real-time Traffic Information according to claim 1 and 2 sends and receives is characterized in that, described map comprises three figure layers:
Figure layer one is the city general view, comprises through street, the primary and secondary arterial highway in city, and the key node in turnover city;
Figure layer two is the road network figure of subregion, city, comprises through street, primary and secondary arterial highway, and the branch road that is used for autos only;
Figure layer three is localized road and detail view, comprises the road that is arranged in figure layer two regional area and node and alleyway, lane.
4. the method that a kind of Real-time Traffic Information according to claim 3 sends and receives is characterized in that, the area of subregion, city is less than 1/10th of the city total area in the figure layer one in the figure layer two.
5. according to the method for claim 3 or 4 described a kind of Real-time Traffic Informations transmissions and reception, it is characterized in that, form ID number by the highway section coding on each figure floor, comprise the property content in this highway section simultaneously, and the coordinate of highway section two-end-point.
6. according to the method for claim 3 or 4 described a kind of Real-time Traffic Informations transmissions and reception, it is characterized in that, thereby the images of described three figure layers are stored in formation base map in the mobile receiving element after overcompression.
7. the method that a kind of Real-time Traffic Information according to claim 1 sends and receives, it is characterized in that, described mobile receiving element is by the mode that manually moves or the GPS receiving trap is located, make the position of mobile receiving element be positioned at the center that image format shows map, and refresh current location in real time.
8. according to the method for claim 3 or 4 described a kind of Real-time Traffic Informations transmissions and reception, it is characterized in that described figure layer two is that the above figure of one deck constitutes.
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| CN 201010542011 CN101976503A (en) | 2010-11-12 | 2010-11-12 | Method for sending and receiving traffic information in real time |
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| CN 201010542011 CN101976503A (en) | 2010-11-12 | 2010-11-12 | Method for sending and receiving traffic information in real time |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104503981A (en) * | 2014-11-28 | 2015-04-08 | 四川浩特通信有限公司 | Intelligent integrated traffic guidance platform system |
| CN106067258A (en) * | 2011-06-22 | 2016-11-02 | Sk 普兰尼特有限公司 | Part updates the method for map datum, service equipment and terminal unit |
| CN108592926A (en) * | 2012-03-30 | 2018-09-28 | 株式会社电装 | Information processing system |
| CN109191877A (en) * | 2018-08-30 | 2019-01-11 | 朱文津 | Traffic Information screen integration display system and its method |
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| CN1658190A (en) * | 2004-02-17 | 2005-08-24 | 逄晓虎 | Method and system for acquiring traffic information |
| CN2754287Y (en) * | 2004-08-17 | 2006-01-25 | 杨凯 | Apparatus for real-time monitoring traffic vehicles using mobile phone |
| CN1755391A (en) * | 2004-09-29 | 2006-04-05 | 佛山市顺德区瑞图万方科技有限公司 | Multifunctional intelligent vehicle-carrying navigation monitoring system |
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Patent Citations (5)
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| US5760742A (en) * | 1995-05-12 | 1998-06-02 | Trimble Navigation Limited | Integrated mobile GIS/GPS/AVL with wireless messaging capability |
| CN1474297A (en) * | 2003-06-18 | 2004-02-11 | 中国科学院计算技术研究所 | Organization and maintenance method based on GIS for computer network map |
| CN1658190A (en) * | 2004-02-17 | 2005-08-24 | 逄晓虎 | Method and system for acquiring traffic information |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106067258A (en) * | 2011-06-22 | 2016-11-02 | Sk 普兰尼特有限公司 | Part updates the method for map datum, service equipment and terminal unit |
| CN108592926A (en) * | 2012-03-30 | 2018-09-28 | 株式会社电装 | Information processing system |
| CN104503981A (en) * | 2014-11-28 | 2015-04-08 | 四川浩特通信有限公司 | Intelligent integrated traffic guidance platform system |
| CN109191877A (en) * | 2018-08-30 | 2019-01-11 | 朱文津 | Traffic Information screen integration display system and its method |
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Application publication date: 20110216 |