CN103177041A - Electronic map generation method, information publish method, road planning method and road planning device - Google Patents
Electronic map generation method, information publish method, road planning method and road planning device Download PDFInfo
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- CN103177041A CN103177041A CN2011104417867A CN201110441786A CN103177041A CN 103177041 A CN103177041 A CN 103177041A CN 2011104417867 A CN2011104417867 A CN 2011104417867A CN 201110441786 A CN201110441786 A CN 201110441786A CN 103177041 A CN103177041 A CN 103177041A
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Abstract
The invention provides an electronic map generation method, an information publish method, a road planning method and a road planning device and belongs to the field of electronic maps. The electronic map generation method comprises the steps of acquiring road water and snow accumulation information and road network data; carrying out coordinate matching on the water and snow accumulation information and the road network data to overlap the water and snow accumulation information on corresponding roads, and updating the road network data to generate an electronic map containing the water and snow accumulation information. The electronic map generation method can generate the electronic map containing the road water and snow accumulation information, provides navigation service for a user and guarantees driving safety in rain and snow weather.
Description
Technical field
The present invention relates to the electronic chart field, refer to especially a kind of electronic map generating method, information issuing method, paths planning method and device.
Background technology
In existing map of navigation electronic collection of material distribution technology, do not relate to road ponding and accumulated snow relevant factor, when sleety weather occurring, the driver just can not obtain ponding and the accumulated snow information on road timely and accurately, thereby has affected safe driving like this.
Summary of the invention
The technical problem to be solved in the present invention is to provide a kind of electronic map generating method, information issuing method, paths planning method and device, can generate the electronic chart that includes road ponding and accumulated snow information, and for the user provides navigation Service, the driving safety when having guaranteed sleety weather to occur.
For solving the problems of the technologies described above, embodiments of the invention provide technical scheme as follows:
On the one hand, provide a kind of electronic map generating method, comprising:
Obtain ponding accumulated snow information and the Road network data of road;
Described ponding accumulated snow information and road road network are carried out coordinate matching, described ponding accumulated snow information is added on corresponding road;
Upgrade the Road network data and generate the electronic chart that includes ponding accumulated snow information.
Further, described ponding accumulated snow information and the Road network data that obtains road comprises:
Send ultrasound wave by the ultrasonic detector that is arranged on road to road surface;
The ultrasound wave of reception channel road surfaces reflection calculates ultrasonic detector to the distance of road surface by the mistiming between hyperacoustic transmitting and receiving;
Be combined weather condition according to the distance of known ultrasonic detector between the road surface, determine the ponding accumulated snow information on road, described ponding accumulated snow information comprises and has or not accumulated snow and Snow Thickness on road, and has or not ponding and depth of accumulated water on road.
Further, described described ponding accumulated snow information is added to comprises on corresponding road:
Increase the ponding accumulated snow attribute field in the Road network data, and fill described ponding accumulated snow attribute field according to the ponding accumulated snow information of obtaining.
The embodiment of the present invention also provides a kind of electronic map information dissemination method, comprising:
Obtain user's path planning request and user's real time position;
Carry out path planning calculating according to ponding accumulated snow information and the described path planning request of road, generate the safety navigation path of evading ponding accumulated snow highway section;
The ponding accumulated snow information of described safety navigation path and described real time position peripheral path is sent to user's navigation terminal.
Further, also comprise before the described user's of obtaining path planning request and user's real time position:
Obtain ponding accumulated snow information and the Road network data of road;
Described ponding accumulated snow information and road road network are carried out coordinate matching, described ponding accumulated snow information is added on corresponding road;
Upgrade the Road network data and generate the electronic chart that includes ponding accumulated snow information.
The embodiment of the present invention also provides a kind of electronic map path planning method, comprising:
Obtain user's the path planning request that includes starting point and destination;
Plan many adapter paths between described starting point and described destination, according to the ponding accumulated snow information of road, the weight setting is carried out in the path, obtain totalling weight corresponding to this adapter path according to the weight calculation in all paths in each adapter path;
The corresponding adapter path of minimum value that the adds up weight mode with text description and graphic plotting is presented on user's navigation terminal.
Further, also comprise before the described user's of obtaining the path planning request that includes starting point and destination:
Obtain ponding accumulated snow information and the Road network data of road;
Described ponding accumulated snow information and road road network are carried out coordinate matching, described ponding accumulated snow information is added on corresponding road;
Upgrade the Road network data and generate the electronic chart that includes ponding accumulated snow information.
The embodiment of the present invention also provides a kind of digital map device, comprising:
The first acquisition module is for the ponding accumulated snow information and the Road network data that obtain road;
The first processing module is used for described ponding accumulated snow information and road road network are carried out coordinate matching, and described ponding accumulated snow information is added on the road of correspondence;
Generation module is used for upgrading the Road network data and generates the electronic chart that includes ponding accumulated snow information.
Further, described the first acquisition module specifically is used for sending ultrasound wave by the ultrasonic detector that is arranged on road to road surface, the ultrasound wave of reception channel road surfaces reflection, calculate ultrasonic detector to the distance of road surface by the mistiming between hyperacoustic transmitting and receiving, be combined weather condition according to the distance of known ultrasonic detector between the road surface, determine the ponding accumulated snow information on road, described ponding accumulated snow information comprises and has or not accumulated snow and Snow Thickness on road, and has or not ponding and depth of accumulated water on road.
Further, described the first processing module is specifically for increasing the ponding accumulated snow attribute field in the Road network data, and fills described ponding accumulated snow attribute field according to the ponding accumulated snow information of obtaining.
The embodiment of the present invention also provides a kind of electronic map information distributing device, comprising:
The second acquisition module is used for obtaining user's path planning request and user's real time position;
The second processing module is used for carrying out path planning calculating according to ponding accumulated snow information and the described path planning request of road, generates the safety navigation path of evading ponding accumulated snow highway section;
Release module is for the ponding accumulated snow information of described safety navigation path and described real time position peripheral path being sent to user's navigation terminal.
Further, described device also comprises:
The first acquisition module is for the ponding accumulated snow information and the Road network data that obtain road;
The first processing module is used for described ponding accumulated snow information and road road network are carried out coordinate matching, and described ponding accumulated snow information is added on the road of correspondence;
Generation module is used for upgrading the Road network data and generates the electronic chart that includes ponding accumulated snow information.
The embodiment of the present invention also provides a kind of electronic map path planning device, comprising:
The 3rd acquisition module is used for the path planning request that includes starting point and destination of obtaining the user;
The 3rd processing module, be used for planning many adapter paths between described starting point and described destination, according to the ponding accumulated snow information of road, the weight setting is carried out in the path, obtained totalling weight corresponding to this adapter path according to the weight calculation in all paths in each adapter path;
Display module is presented at user's navigation terminal for the corresponding adapter path of minimum value that will add up weight in the mode of text description and graphic plotting.
Further, described device also comprises:
The first acquisition module is for the ponding accumulated snow information and the Road network data that obtain road;
The first processing module is used for described ponding accumulated snow information and road road network are carried out coordinate matching, and described ponding accumulated snow information is added on the road of correspondence;
Generation module is used for upgrading the Road network data and generates the electronic chart that includes ponding accumulated snow information.
Embodiments of the invention have following beneficial effect:
In such scheme, at first obtain ponding accumulated snow information and the Road network data of road, ponding accumulated snow information and road road network are carried out coordinate matching, ponding accumulated snow information is added on corresponding road, upgrade the Road network data and generate the electronic chart that includes ponding accumulated snow information.Can provide the information issuing service for the user according to the electronic chart that upgrades afterwards, by information issuing service timely, can make the navigation terminal user in time obtain road depth of accumulated water and Snow Thickness information, effectively evade Dangerous Area, improve navigation path planning validity, ensure driving safety.
Description of drawings
Fig. 1 is the schematic flow sheet of electronic map generating method of the present invention;
Fig. 2 is the schematic flow sheet of electronic map information dissemination method of the present invention;
Fig. 3 is the schematic flow sheet of electronic map path planning method of the present invention;
Fig. 4 is the structured flowchart of digital map device of the present invention;
Fig. 5 is the structured flowchart of electronic map information distributing device of the present invention;
Fig. 6 is the structured flowchart of electronic map path planning device of the present invention;
Fig. 7 is the structured flowchart of navigational system of the present invention;
Fig. 8 is the schematic diagram that ultrasonic detector of the present invention gathers ponding or accumulated snow information;
Fig. 9 is another schematic flow sheet of electronic map generating method of the present invention;
Figure 10 is another schematic flow sheet of electronic map information dissemination method of the present invention.
Embodiment
For technical matters, technical scheme and advantage that embodiments of the invention will be solved is clearer, be described in detail below in conjunction with the accompanying drawings and the specific embodiments.
Embodiments of the invention are in existing map of navigation electronic collection of material distribution technology, do not relate to road ponding and accumulated snow relevant factor, thereby affect the problem of safe driving, a kind of electronic map generating method, information issuing method, paths planning method and device are provided, can generate the electronic chart that includes road ponding and accumulated snow information, and for the user provides navigation Service, the driving safety when having guaranteed sleety weather to occur.
Fig. 1 is the schematic flow sheet of electronic map generating method of the present invention, and as shown in Figure 1, the present embodiment comprises:
Step 101: the ponding accumulated snow information and the Road network data that obtain road;
Step 102: ponding accumulated snow information and road road network are carried out coordinate matching, ponding accumulated snow information is added on corresponding road;
Step 103: upgrade the Road network data and generate the electronic chart that includes ponding accumulated snow information.
Electronic map generating method of the present invention, at first obtain ponding accumulated snow information and the Road network data of road, ponding accumulated snow information and road road network are carried out coordinate matching, afterwards ponding accumulated snow information is added on corresponding road, upgrades the Road network data and generate the electronic chart that includes ponding accumulated snow information.The present embodiment can upgrade in time by the ponding accumulated snow information that obtains and generate ponding accumulated snow electronic chart.
Fig. 2 is the schematic flow sheet of electronic map information dissemination method of the present invention, and as shown in Figure 2, the present embodiment comprises:
Step 201: obtain user's path planning request and user's real time position;
Step 202: carry out path planning calculating according to ponding accumulated snow information and the path planning request of road, generate the safety navigation path of evading ponding accumulated snow highway section;
Step 203: the navigation terminal that the ponding accumulated snow information of safety navigation path and real time position peripheral path is sent to the user.
Before step 201, at first to obtain ponding accumulated snow information and the Road network data of road, ponding accumulated snow information and road road network are carried out coordinate matching, ponding accumulated snow information is added on corresponding road, upgrades the Road network data and generate the electronic chart that includes ponding accumulated snow information.
Electronic map information dissemination method of the present invention, provide the information issuing service according to the electronic chart that includes ponding accumulated snow information that upgrades for the user, by information issuing service timely, can make the navigation terminal user in time obtain road depth of accumulated water and Snow Thickness information, effectively evade Dangerous Area, improve navigation path planning validity, ensure driving safety.
Fig. 3 is the schematic flow sheet of electronic map path planning method of the present invention, and as shown in Figure 3, the present embodiment comprises:
Step 301: the path planning request that includes starting point and destination of obtaining the user;
Step 302: many adapter paths between planning starting point and destination, according to the ponding accumulated snow information of road, the weight setting is carried out in the path, obtain totalling weight corresponding to this adapter path according to the weight calculation in all paths in each adapter path;
Step 303: the corresponding adapter path of minimum value that will add up weight is presented on user's navigation terminal in the mode of text description and graphic plotting.
Before step 301, at first to obtain ponding accumulated snow information and the Road network data of road, ponding accumulated snow information and road road network are carried out coordinate matching, ponding accumulated snow information is added on corresponding road, upgrades the Road network data and generate the electronic chart that includes ponding accumulated snow information.
Electronic map path planning method of the present invention provides the path planning service according to the electronic chart that includes ponding accumulated snow information that upgrades for the user, can improve validity, the guarantee driving safety of navigation path planning.
Fig. 4 is the structured flowchart of digital map device of the present invention, and as shown in Figure 4, the present embodiment comprises:
The first acquisition module 41 is for the ponding accumulated snow information and the Road network data that obtain road;
The first processing module 42 is used for ponding accumulated snow information and road road network are carried out coordinate matching, and ponding accumulated snow information is added on the road of correspondence;
Wherein, the first acquisition module 41 is concrete for sending ultrasound wave by the ultrasonic detector that is arranged on road to road surface, the ultrasound wave of reception channel road surfaces reflection, calculate ultrasonic detector to the distance of road surface by the mistiming between hyperacoustic transmitting and receiving, be combined weather condition according to the distance of known ultrasonic detector between the road surface, determine the ponding accumulated snow information on road, ponding accumulated snow information comprises and has or not accumulated snow and Snow Thickness on road, and has or not ponding and depth of accumulated water on road.
The first processing module 42 is specifically for increasing the ponding accumulated snow attribute field in the Road network data, and fills ponding accumulated snow attribute field according to the ponding accumulated snow information of obtaining.
Digital map device of the present invention, at first obtain ponding accumulated snow information and the Road network data of road, ponding accumulated snow information and road road network are carried out coordinate matching, afterwards ponding accumulated snow information is added on corresponding road, upgrades the Road network data and generate the electronic chart that includes ponding accumulated snow information.The present embodiment can upgrade in time by the ponding accumulated snow information that obtains and generate ponding accumulated snow electronic chart.
Fig. 5 is the structured flowchart of electronic map information distributing device of the present invention, and as shown in Figure 5, the present embodiment comprises:
The second acquisition module 51 is used for obtaining user's path planning request and user's real time position;
The second processing module 52 is used for carrying out path planning calculating according to ponding accumulated snow information and the path planning request of road, generates the safety navigation path of evading ponding accumulated snow highway section;
Release module 53 is for the ponding accumulated snow information of safety navigation path and real time position peripheral path being sent to user's navigation terminal.
Further, this device also comprises:
The first acquisition module is for the ponding accumulated snow information and the Road network data that obtain road;
The first processing module is used for ponding accumulated snow information and road road network are carried out coordinate matching, and ponding accumulated snow information is added on the road of correspondence;
Generation module is used for upgrading the Road network data and generates the electronic chart that includes ponding accumulated snow information.
Electronic map information distributing device of the present invention, provide the information issuing service according to the electronic chart that includes ponding accumulated snow information that upgrades for the user, by information issuing service timely, can make the navigation terminal user in time obtain road depth of accumulated water and Snow Thickness information, effectively evade Dangerous Area, improve navigation path planning validity, ensure driving safety.
Fig. 6 is the structured flowchart of electronic map path planning device of the present invention, and as shown in Figure 6, the present embodiment comprises:
The 3rd acquisition module 61 is used for the path planning request that includes starting point and destination of obtaining the user;
The 3rd processing module 62, be used for many adapter paths between planning starting point and destination, according to the ponding accumulated snow information of road, the weight setting is carried out in the path, obtained totalling weight corresponding to this adapter path according to the weight calculation in all paths in each adapter path;
Display module 63 is presented at user's navigation terminal for the corresponding adapter path of minimum value that will add up weight in the mode of text description and graphic plotting.
Further, this device also comprises:
The first acquisition module is for the ponding accumulated snow information and the Road network data that obtain road;
The first processing module is used for ponding accumulated snow information and road road network are carried out coordinate matching, and ponding accumulated snow information is added on the road of correspondence;
Generation module is used for upgrading the Road network data and generates the electronic chart that includes ponding accumulated snow information.
Electronic map path planning device of the present invention provides the path planning service according to the electronic chart that includes ponding accumulated snow information that upgrades for the user, can improve validity, the guarantee driving safety of navigation path planning.
Below in conjunction with figure, electronic map generating method of the present invention, information issuing method, paths planning method are further introduced:
Technical scheme of the present invention is applied in navigational system, as shown in Figure 7, navigational system of the present invention comprises ponding information acquisition device, accumulated snow information acquisition device, information wireless transmission device, ponding accumulated snow information database, Road grid database, digital map device, electronic map database and electronic map information distributing device.
Wherein, ponding information acquisition device and accumulated snow information acquisition device can adopt ultrasound wave, radar or other Internet of Things sensing ponding and accumulated snow detector, detector can be arranged on road both sides especially on the light pole or other vertical rods in the highway section such as the inferior road of viaduct low-lying place, is used for surveying ponding or accumulated snow information.Can adopt dissimilar detector according to the difference of surveying ponding or accumulated snow principle, the below is take ponding information acquisition device and accumulated snow information acquisition device as ultrasonic detector as example, the course of work of description ponding information acquisition device and accumulated snow information acquisition device.The ultrasonic detector workflow is: pulse ultrasonic wave is sent by sensor (transducer) in measurement, and sound wave is received by same sensor after water (snow) or road surface reflection, converts electric signal to.And by the distance of the mistiming calculating sensor between the transmitting and receiving of sound wave to measured object dignity (water, snow or road).Therefore distance between known sensor and road surface during due to installation can judge to have or not ponding or accumulated snow on road, is to rain or snowfall according to weather condition, can judge that the road surface is ponding or accumulated snow.As shown in Figure 8, M1 represents object plane (ponding face or accumulated snow face) that detector distance need to survey highly, and M2 represents the detector installation site apart from road surface height (can determine during installation, be known parameters), and M3 represents depth of accumulated water or Snow Thickness.Can calculate M1 according to ultrasonic wave principle during detector work, and obtain road depth of accumulated water or Snow Thickness according to M3=M2-M1, again the information exchanges such as depth of accumulated water or Snow Thickness, detector geographic coordinate position and detector identification number are crossed the information wireless transmission device remote transmission to ponding accumulated snow information database, complete gatherer process.
Information wireless transmission device adopts the radio data network transmission equipment, and with ponding information acquisition device and the integrated assembling of accumulated snow information acquisition device, the ponding accumulated snow information wireless that is used for gathering is transferred to ponding accumulated snow database.
Ponding accumulated snow information database is the data base management system (DBMS) for storage administration ponding accumulated snow information, corresponding spatial information and attribute information is arranged, and have temporal feature.
The Road grid database comprises road road network vector data, and road net data core is expressed as Link (path) and Node (node).Generally speaking, the Regional Road Network data are with the map sheet conception division.For example, divide whole network data take 10km * 8km as grid and be some map sheets, each map sheet is the details of whole network data in certain zone.
The digital map device carries out the more newly-generated electronic chart that includes ponding accumulated snow information of electronic chart fusion according to Road network data and road ponding accumulated snow information.
Electronic map database is used for the electronic chart that includes ponding accumulated snow information that storage dynamically updates.
The electronic map information distributing device is the electronic chart that generates can be issued the device of output in modes such as printing, electronization, remote information transmission.
Electronic map generating method in the present invention upgrades the Road network data and generates the electronic chart that includes ponding accumulated snow information, and the electronic chart of generation is as the Data Source of electronic map information issue and electronic map path planning.
As shown in Figure 9, electronic map generating method of the present invention comprises the following steps:
Step a1: obtain ponding accumulated snow information database and Road grid database;
Step a2: go forward side by side row-coordinate coupling of reading out data.By reading ponding accumulated snow information database, can obtain by obtaining each detector sign the latitude and longitude coordinates of its installation, by reading the Road grid database, can obtain road road network link sign and particular location, carry out the coordinate matching of ponding accumulated snow information and link, determine the ponding accumulated snow information corresponding with link;
Step a3: merge and upgrade road network link data, increasing the ponding accumulated snow attribute field on road road network link, and according to the dynamic assignment ponding of the ponding accumulated snow information accumulated snow attribute field of the correspondence that collects;
Step a4: upgrade the electronic chart road net data and play up expression, upgrading electronic chart according to the road net data with ponding accumulated snow multidate information, and play up expression according to the ponding snow depth with the shade gradual change;
Step a5: travel through all map sheets by the sequential loop from step a2 to step a4, result all is added in electronic chart.Because the processing of each map sheet is separate, so but a plurality of map sheets of parallel processing improve formation efficiency.
Electronic map information dissemination method of the present invention need to be based on the electronic chart of above-mentioned steps a1-a5 generation, and as shown in figure 10, electronic map information dissemination method of the present invention comprises the following steps:
Step b1: the user utilizes navigation terminal that guidance path is set, and the electronic map information distributing device obtains user's path planning request and user's real-time geographic coordinate (being user's real time position) by wireless network;
Step b2: the electronic map information distributing device obtains ponding accumulated snow information after getting user's path planning request in the electronic map database that dynamically updates;
Step b3: utilize ponding accumulated snow information to carry out path planning and calculate, generate the safety navigation path of evading ponding accumulated snow Dangerous Area, generate simultaneously the road ponding accumulated snow information point data of user's real time position peripheral extent;
Step b4: the road ponding accumulated snow information point data wireless of the safety navigation path of evading ponding accumulated snow Dangerous Area that generates in step b3 and user's real time position peripheral extent is transferred to user's navigation terminal, completes the information issuing service to the user.
Electronic map path planning method of the present invention need to be based on the electronic chart of above-mentioned steps a1-a5 generation, and electronic map path planning method of the present invention comprises the following steps:
Step c1: the path planning request that includes starting point and destination of obtaining the user;
Step c2: many adapter paths between planning starting point and destination, the path planning of selecting according to the user requires (being the bee-line that arrives the destination as requiring adapter path), ponding accumulated snow information in conjunction with road is carried out the weight setting to different paths respectively, obtain totalling weight corresponding to this adapter path according to the weight calculation in all paths in each adapter path, thereby obtain the totalling weight of all adapter paths, determine to add up the corresponding adapter path of minimum value of weight;
Step c3: the corresponding adapter path of minimum value that will add up weight is presented on user's navigation terminal in the mode of text description and graphic plotting.
The present invention is by the ponding accumulated snow information of Quick Acquisition, dynamically generate fast the electronic chart that includes ponding accumulated snow information, and by issuing service timely, can make the navigation terminal user in time obtain the information such as road depth of accumulated water and Snow Thickness, effectively evade Dangerous Area, improve navigation path planning validity, ensure driving safety; Include the appearance of the electronic chart of ponding accumulated snow information, the emergency command ability of traffic control department will greatly be promoted, traffic control department can make by Real-time Collection the electronic chart of issue, command, dredge road traffic, for high-risk highway section, carry out road traffic control, " rapid reaction, coordination linkage, the resolute disposal ", service to the public better realizes becoming more meticulous of traffic administration work; Include the appearance of the electronic chart of ponding accumulated snow information, will greatly reduce the settlement of insurance claim probability of the insurance company that causes due to extreme weathers such as heavy rain, severe snows.When extreme weather occurring, insurance company is by the information notice channel (as note, phone or E-Mail) of self, to the insurer drive a vehicle high-risk highway section, do not advise that the warmth of running section reminds, can reduce the motor vehicles that cause because of disaster damages, and further promote the quality of service, bonding loyalty and the degree of recognition of client to insurance company; The electronic chart that includes ponding accumulated snow information can satisfy the needs of urban pipe network planning and design, can facilitate city management department to carry out the spatial analysis of urban pipe network by the electronic chart that includes ponding accumulated snow information, and auxiliaryly carry out design, planning and the improvement of urban pipe network.
Many functional parts described in this instructions all are called as module, in order to emphasize more especially the independence of its implementation.
In the embodiment of the present invention, module can realize with software, in order to carried out by various types of processors.For instance, the executable code module of a sign can comprise one or more physics or the logical block of computer instruction, and for instance, it can be built as object, process or function.However, the executable code of institute's identification module need not to be physically located in together, but can comprise the different instruction that is stored on coordination not, when combining on these command logics, and its composition module and realize the regulation purpose of this module.
In fact, executable code module can be individual instructions or many instructions, and even can be distributed on a plurality of different code segments, is distributed in the middle of distinct program, and crosses over a plurality of memory devices distributions.Similarly, service data can be identified in module, and can realize and be organized in the data structure of any suitable type according to any suitable form.Described service data can be used as the individual data collection and is collected, and perhaps can be distributed on diverse location (to be included on different storage device), and can only be present on system or network as electronic signal at least in part.
When module can utilize software to realize, consider the level of existing hardware technique, so can be with the module of software realization, in the situation that do not consider cost, those skilled in the art can build corresponding hardware circuit and realize corresponding function, and described hardware circuit comprises conventional ultra-large integrated (VLSI) circuit or gate array and the existing semiconductor such as logic chip, transistor or other discrete element.Module can also be used programmable hardware device, realizations such as field programmable gate array, programmable logic array, programmable logic device.
In each embodiment of the method for the present invention; the sequence number of described each step can not be used for limiting the sequencing of each step; for those of ordinary skills, under the prerequisite of not paying creative work, the priority of each step is changed also within protection scope of the present invention.
The above is the preferred embodiment of the present invention; should be pointed out that for those skilled in the art, under the prerequisite that does not break away from principle of the present invention; can also make some improvements and modifications, these improvements and modifications also should be considered as protection scope of the present invention.
Claims (14)
1. an electronic map generating method, is characterized in that, comprising:
Obtain ponding accumulated snow information and the Road network data of road;
Described ponding accumulated snow information and road road network are carried out coordinate matching, described ponding accumulated snow information is added on corresponding road;
Upgrade the Road network data and generate the electronic chart that includes ponding accumulated snow information.
2. electronic map generating method according to claim 1, is characterized in that, described ponding accumulated snow information and the Road network data that obtains road comprises:
Send ultrasound wave by the ultrasonic detector that is arranged on road to road surface;
The ultrasound wave of reception channel road surfaces reflection calculates ultrasonic detector to the distance of road surface by the mistiming between hyperacoustic transmitting and receiving;
Be combined weather condition according to the distance of known ultrasonic detector between the road surface, determine the ponding accumulated snow information on road, described ponding accumulated snow information comprises and has or not accumulated snow and Snow Thickness on road, and has or not ponding and depth of accumulated water on road.
3. electronic map generating method according to claim 1, is characterized in that, described described ponding accumulated snow information is added to comprises on corresponding road:
Increase the ponding accumulated snow attribute field in the Road network data, and fill described ponding accumulated snow attribute field according to the ponding accumulated snow information of obtaining.
4. an electronic map information dissemination method, is characterized in that, comprising:
Obtain user's path planning request and user's real time position;
Carry out path planning calculating according to ponding accumulated snow information and the described path planning request of road, generate the safety navigation path of evading ponding accumulated snow highway section;
The ponding accumulated snow information of described safety navigation path and described real time position peripheral path is sent to user's navigation terminal.
5. electronic map information dissemination method according to claim 4, is characterized in that, also comprises before the described user's of obtaining path planning request and user's real time position:
Obtain ponding accumulated snow information and the Road network data of road;
Described ponding accumulated snow information and road road network are carried out coordinate matching, described ponding accumulated snow information is added on corresponding road;
Upgrade the Road network data and generate the electronic chart that includes ponding accumulated snow information.
6. an electronic map path planning method, is characterized in that, comprising:
Obtain user's the path planning request that includes starting point and destination;
Plan many adapter paths between described starting point and described destination, according to the ponding accumulated snow information of road, the weight setting is carried out in the path, obtain totalling weight corresponding to this adapter path according to the weight calculation in all paths in each adapter path;
The corresponding adapter path of minimum value that the adds up weight mode with text description and graphic plotting is presented on user's navigation terminal.
7. electronic map path planning method according to claim 6, is characterized in that, also comprises before the described user's of obtaining the path planning request that includes starting point and destination:
Obtain ponding accumulated snow information and the Road network data of road;
Described ponding accumulated snow information and road road network are carried out coordinate matching, described ponding accumulated snow information is added on corresponding road;
Upgrade the Road network data and generate the electronic chart that includes ponding accumulated snow information.
8. a digital map device, is characterized in that, comprising:
The first acquisition module is for the ponding accumulated snow information and the Road network data that obtain road;
The first processing module is used for described ponding accumulated snow information and road road network are carried out coordinate matching, and described ponding accumulated snow information is added on the road of correspondence;
Generation module is used for upgrading the Road network data and generates the electronic chart that includes ponding accumulated snow information.
9. digital map device according to claim 8, is characterized in that,
Described the first acquisition module specifically is used for sending ultrasound wave by the ultrasonic detector that is arranged on road to road surface, the ultrasound wave of reception channel road surfaces reflection, calculate ultrasonic detector to the distance of road surface by the mistiming between hyperacoustic transmitting and receiving, be combined weather condition according to the distance of known ultrasonic detector between the road surface, determine the ponding accumulated snow information on road, described ponding accumulated snow information comprises and has or not accumulated snow and Snow Thickness on road, and has or not ponding and depth of accumulated water on road.
10. digital map device according to claim 8, is characterized in that,
Described the first processing module is specifically for increasing the ponding accumulated snow attribute field in the Road network data, and fills described ponding accumulated snow attribute field according to the ponding accumulated snow information of obtaining.
11. an electronic map information distributing device is characterized in that, comprising:
The second acquisition module is used for obtaining user's path planning request and user's real time position;
The second processing module is used for carrying out path planning calculating according to ponding accumulated snow information and the described path planning request of road, generates the safety navigation path of evading ponding accumulated snow highway section;
Release module is for the ponding accumulated snow information of described safety navigation path and described real time position peripheral path being sent to user's navigation terminal.
12. electronic map information distributing device according to claim 11 is characterized in that, described device also comprises:
The first acquisition module is for the ponding accumulated snow information and the Road network data that obtain road;
The first processing module is used for described ponding accumulated snow information and road road network are carried out coordinate matching, and described ponding accumulated snow information is added on the road of correspondence;
Generation module is used for upgrading the Road network data and generates the electronic chart that includes ponding accumulated snow information.
13. an electronic map path planning device is characterized in that, comprising:
The 3rd acquisition module is used for the path planning request that includes starting point and destination of obtaining the user;
The 3rd processing module, be used for planning many adapter paths between described starting point and described destination, according to the ponding accumulated snow information of road, the weight setting is carried out in the path, obtained totalling weight corresponding to this adapter path according to the weight calculation in all paths in each adapter path;
Display module is presented at user's navigation terminal for the corresponding adapter path of minimum value that will add up weight in the mode of text description and graphic plotting.
14. electronic map path planning device according to claim 13 is characterized in that, described device also comprises:
The first acquisition module is for the ponding accumulated snow information and the Road network data that obtain road;
The first processing module is used for described ponding accumulated snow information and road road network are carried out coordinate matching, and described ponding accumulated snow information is added on the road of correspondence;
Generation module is used for upgrading the Road network data and generates the electronic chart that includes ponding accumulated snow information.
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