CN102288182B - Navigation information providing method and navigation information providing system - Google Patents
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Abstract
The invention relates to a navigation information providing method and a navigation information providing system. The navigation information providing method integrates the processing methods in which a vehicle-mounted terminal transfers a local position correcting service and a navigation server transfers a network position correcting service to correct the real longitude and latitude information which corresponds to a current position of a vehicle obtained by the vehicle-mounted terminal, so as to search interest point information near the current position of the vehicle with the position correction information which is adaptive to a navigation server coordinate system. The navigation information providing method greatly improves the reliability and the accuracy of the position correction information, and improves the user experience.
Description
Technical field
The present invention relates to navigational system and air navigation aid, particularly a kind of supplying method and navigation information of the navigation information for mobile unit provide system.
Background technology
Along with the development of GPS (Global Position System, GPS), increasing vehicle has been equipped with the onboard navigation system based on GPS.Onboard navigation system can utilize GPS to determine the current location of vehicle, and according to the coordinate of the terminal of user's input, planning is determined by current location driving path to terminal, and will be planned that definite driving path is shown in the display screen of onboard navigation system, is used to user to navigate.
The patent No. is to disclose a kind of onboard navigation system and method in the Chinese patent of ZL 200410155464.6, adopt path planning unit to carry out the optimal path of point-to-point transmission in storing electronic map, when vehicle departs from described optimal path, by described path planning unit, take current location as starting point re-starts path planning, make in the situation that departing from predefined paths still to continue navigation in mode preferably.
But, the onboard navigation system of prior art, the deviation post information adopting in the true latitude and longitude information that it adopts for the GPS locating and onboard navigation system has the deviation of certain amplitude.Especially, for the onboard navigation system that adopts terminal-server collaborative navigation, the true latitude and longitude information that the GPS of car-mounted terminal provides does not also adapt to the coordinate system of the public Geographic Information System that navigation server adopts, and described public Geographic Information System is to realize the core system of planning objective location finding in path in navigation Service.Therefore, must revise described true latitude and longitude information, make its coordinate system that is suitable for public Geographic Information System in navigation server, thereby realize accurately location.
Yet, the positional information correction of carrying out for described car-mounted terminal, it need to be realized by special-purpose local position amending unit conventionally.But the interface imperfection of described local position amending unit, the call operation relative complex of positional information correction.And for described navigation server, its interface for positional information correction providing is openly abundant not, and the risk that exists interface to close.This makes the positional information correction of onboard navigation system be difficult to stable carrying out, and also just cannot provide navigation information accurately to user.
Summary of the invention
Supplying method and navigation information that the problem that the present invention solves is to provide a kind of navigation information for mobile unit provide system, improve accuracy and the reliability of navigation information, improve user's experience.
For addressing the above problem, the invention provides a kind of supplying method of navigation information, the navigation information that is suitable for car-mounted terminal and navigation server formation provides system, it is characterized in that, comprising:
For described car-mounted terminal:
When the local position correction service of car-mounted terminal can be called, described car-mounted terminal obtains user's navigation Service request, and true latitude and longitude information corresponding to vehicle current location, and based on described local position correction service, described true latitude and longitude information is revised, form primary importance update information, and be sent to navigation server together with navigation Service request;
The non-adjustable used time is served in local position correction at car-mounted terminal, described car-mounted terminal obtains user's true latitude and longitude information corresponding to navigation Service request, vehicle current location, and produce the described local position correction of sign and serve the invalidated identification of non-adjustable use, and be sent in the lump navigation server;
For described navigation server:
Described navigation server is when receiving primary importance update information, and near the interest point information based on described primary importance update information and navigation Service request search vehicle current location also sends to car-mounted terminal;
Described navigation server is when receiving invalidated identification, calling network site correction service revises true latitude and longitude information, form second place update information, near the interest point information based on described second place update information and navigation Service request search vehicle current location also sends to car-mounted terminal.
Accordingly, the present invention also provides a kind of navigation information that system is provided, and comprises car-mounted terminal, navigation server and target acquisition data storehouse, wherein,
Described car-mounted terminal, for obtaining true latitude and longitude information corresponding to navigation Service request and vehicle current location; Whether inquiry local position correction service can call, and then form local position information based on true latitude and longitude information, and described local position information is sent to navigation server together with navigation Service request, in described local position information, include primary importance update information or invalidated identification, true latitude and longitude information; Described car-mounted terminal is also for receiving the interest point information that navigation server provides and being prompted to user;
Described navigation server, be used for receiving navigation Service request and local position information, and inquire about in described local position information whether comprise primary importance update information, if include primary importance update information, near the interest point information of navigation server based on described primary importance update information and navigation Service request search vehicle current location; If include invalidated identification, described navigation server calls network site and revises service true latitude and longitude information is revised, form second place update information, near the interest point information based on described second place update information and navigation Service request search vehicle current location also sends to car-mounted terminal;
Described target acquisition data storehouse, for storing the interest point information for navigation server search.
Compared with prior art, the present invention has the following advantages: the multiple alternative processing means of revising for the true latitude and longitude information of current location are provided, have greatly improved the reliability of position correction information, effectively improved user's service experience.
Accompanying drawing explanation
Fig. 1 is the schematic flow sheet of an embodiment of supplying method of navigation information of the present invention;
Fig. 2 shows the embodiment that navigation information of the present invention provides system;
Fig. 3 is the module diagram that navigation information of the present invention provides car-mounted terminal in system;
Fig. 4 is the module diagram that navigation information of the present invention provides navigation server in system.
Embodiment
For above-mentioned purpose of the present invention, feature and advantage can more be become apparent, below in conjunction with accompanying drawing, the specific embodiment of the present invention is described in detail.
Set forth detail in the following description so that fully understand the present invention.But the present invention can be different from alternate manner described here and implements with multiple, and those skilled in the art can do similar popularization without prejudice to intension of the present invention in the situation that.Therefore the present invention is not subject to the restriction of following public embodiment.
As described in background, onboard navigation system of the prior art is only generally to navigate in the final position providing for user, but in actual applications, described onboard navigation system is when carrying out positional information correction, may cannot effectively obtain accurate location because of the problem of local position amending unit or navigation server interface, thereby affect navigation effect.
For the problems referred to above, the present inventor provides a kind of and has adopted multiple alternative processing means that the supplying method of the navigation information of position correction accuracy is provided.In described navigation information supplying method, user, send after navigation Service request, navigational system is obtained the true latitude and longitude information of vehicle current location, afterwards, described onboard navigation system can be revised the situation called of serving in conjunction with the local position correction service of car-mounted terminal and the network site of navigation server, described true latitude and longitude information is modified to the position correction information that is suitable for navigation server coordinate system, then carries out corresponding point of interest search according to described deviation post information.
Fig. 1 is the schematic flow sheet of an embodiment of supplying method of navigation information of the present invention, comprising:
Execution step S102, car-mounted terminal obtains navigation Service request and true latitude and longitude information corresponding to vehicle current location.
Wherein, described navigation Service request includes user profile, and described user profile is corresponding to user's personal interest hobby, based on described user profile, navigation server, when carrying out the search of point of interest target location, can provide the personalized service that is directed to user.Described user profile comprises user ID and device identification, wherein, device identification can be the hardware device number of described mobile unit, described user ID can be user number, in one embodiment, can judge by inserting information in the storage card of described mobile unit the holder's of this storage card user number.
Then, execution step S104, whether car-mounted terminal inquiry local position correction service can call.In the situation that described local position correction service can be called, execution step S106, car-mounted terminal forms primary importance update information based on described true latitude and longitude information; In the situation that non-adjustable use is served in described local position correction, execution step S108, the invalidated identification of car-mounted terminal home position correction failure.Described invalidated identification or primary importance update information and true latitude and longitude information are defined as local position information, and the invalidated identification in described local position information, primary importance update information correspond respectively to the failure of local position correcting process and successful situation.Afterwards, execution step S110, car-mounted terminal is sent to navigation server in the lump by local position information and navigation Service request.
Continue execution step S112, navigation server receives navigation Service request and the local position information that described car-mounted terminal sends.Afterwards, execution step S114, navigation server is inquired about described local position information and whether is comprised primary importance update information: if navigation server receives described primary importance update information, execution step S116, near the interest point information of navigation server based on described primary importance update information and navigation Service request search vehicle current location; If navigation server receives described invalidated identification, continue execution step S118, whether the service of navigation server requester network position correction can call: in the situation that the correction service of described network site can be called, execution step S120, described network site is revised service and is formed second place update information based on true latitude and longitude information, and by navigation server near the interest point information based on described second place update information and navigation Service request search vehicle current location; The in the situation that of revising the non-adjustable use of service in described network site, execution step S122, near the interest point information of navigation server based on true latitude and longitude information and navigation Service request search vehicle current location.
After near interest point information acquisition vehicle current location, execution step S124, navigation server sends to car-mounted terminal by described interest point information, and is prompted to user by car-mounted terminal.
In specific embodiment, described true latitude and longitude information is WGS-84 coordinate system coordinate, and described primary importance update information and second place update information are a kind of in Beijing coordinate system coordinate in 1954, Xi'an coordinate system coordinate in 1980 and national coordinate system coordinate in 2000.
The user profile comprising in corresponding described navigation Service request, comprising user ID and device identification, described device identification is for realizing being connected of car-mounted terminal and navigation server, described user ID can be for the hobby of identifying user, and by navigation server, from target acquisition data storehouse, is searched near the point of interest search current location corresponding with user interest.
Can find out, the supplying method of navigation information of the present invention is when revising the true latitude and longitude information of current location, the network site that local position correction service based on car-mounted terminal and navigation server call is revised service multiple alternative disposal route is provided, and has greatly improved the reliability of position correction information.Meanwhile, the user profile in described navigation Service request can also be used to mark user's personal preference, and then interest point information is more targetedly provided, and has also effectively improved user's service experience.
Fig. 2 shows the embodiment that navigation information of the present invention provides system, comprises car-mounted terminal 200, navigation server 210 and target acquisition data storehouse 220, wherein,
Described car-mounted terminal 200, for obtaining true latitude and longitude information corresponding to navigation Service request and vehicle current location; Whether inquiry local position correction service can call, and then form local position information based on true latitude and longitude information, and described local position information is sent to navigation server 210 together with navigation Service request, in described local position information, include primary importance update information or invalidated identification, true latitude and longitude information; Described car-mounted terminal 200 is also for receiving the interest point information that navigation server 210 provides and being prompted to user;
Described navigation server 210, be used for receiving navigation Service request and local position information, and inquire about in described local position information whether comprise primary importance update information, if include primary importance update information, near the interest point information of navigation server 210 based on described primary importance update information and navigation Service request search vehicle current location; If include invalidated identification, described navigation server 210 calls network site and revises service true latitude and longitude information is revised, form second place update information, near the interest point information based on described second place update information and navigation Service request search vehicle current location also sends to car-mounted terminal;
Described target acquisition data storehouse 220, for storing the interest point information for navigation server 210 search.Described interest point information comprises the position of point of interest, and the type of point of interest.The type of described point of interest can for navigation Service request in the type matching of the user interest that comprises.Wherein, described point of interest refers to the place of user institute preference, as the restaurant of the market of a certain brand, a certain style of cooking, have the gymnasium of a certain specific project etc.
Wherein, car-mounted terminal 200 is a mobile unit in the present embodiment, comprising GPS orientator, for the current location of inquiring about described car-mounted terminal 200, it should be noted that, the current latitude and longitude information that the GPS orientator of prior art produces is all based on WGS-84 coordinate system (World Geodetic System-1984), the widely used coordinate system of Er China is Beijing coordinate system (Beijing Geodetic Coordinate System 1954) coordinate in 1954, Xi'an coordinate system in 1980 (Xi ' an Geodetic Coordinate System 1980) coordinate or national coordinate system (China Geodetic Coordinate System 2000) coordinate in 2000, therefore for fear of the deviation of the navigation information causing under different coordinates, the technical scheme of the present embodiment is revised the true latitude and longitude information of car-mounted terminal 200, adopt revised coordinate to search for, guaranteed the accuracy of Search Results.
Fig. 3 is the module diagram that navigation information of the present invention provides car-mounted terminal in system.As shown in Figure 3, described car-mounted terminal includes main control unit 201, navigation elements 202, positioning unit 203, local position amending unit 204, communication unit 205 and Tip element 206, wherein,
Described main control unit 201, for receiving user's navigation Service request and offering navigation elements 202; And inquire about described local position amending unit 204 and whether can call, the described adjustable used time of local position amending unit 204, being formed with criterion knows and offers positioning unit 203, the described non-adjustable used time of local position amending unit 204, form invalidated identification and offer positioning unit 203 and navigation elements 202.
Described positioning unit 203, for determining user's the corresponding true latitude and longitude information of current location, the invalidated identification providing based on main control unit 201, offers navigation elements 202 by described true latitude and longitude information; The effective sign providing based on main control unit 201, offers local position amending unit 204 by true latitude and longitude information
Described local position amending unit 204, for it being revised when obtaining described true latitude and longitude information, forms primary importance update information and offers navigation elements 202.
Described navigation elements 202, based on true latitude and longitude information and invalidated identification, or primary importance update information formation local position information, and described local position information and navigation Service request are offered to communication unit 205.
Described communication unit 205, delivers to navigation server for the local position information and the navigation Service request Concurrency that receive navigation elements 202 and provide; Receive the interest point information of navigation server transmission and offer Tip element 206.
Described Tip element 206, the interest point information providing for receiving communication unit 205 is also prompted to user.
Fig. 4 is the module diagram that navigation information of the present invention provides navigation server in system.As shown in Figure 4, described navigation server includes communication unit 211, control module 212, network site correction interface 213 and search unit 214, wherein,
Described communication unit 211 is for receiving local position information and the navigation Service request of car-mounted terminal transmission and offering control module 212; The interest point information that reception search unit 214 provides is also sent to car-mounted terminal.
Interface 213 is revised in described network site, be used for obtaining network site and revise service, service is revised for true latitude and longitude information is revised in described network site, forms second place update information and revise interface by described network site to offer search unit 214.
Described control module 212, calls network site based on local position Information Selection and revises service, and described local position information comprises primary importance update information, described primary importance update information is offered to search unit 214; Described local position information comprises invalidated identification, by described network site, revise interface 213 and obtain network site correction service, if described network site is revised service and can be called, the true latitude and longitude information in local position information is revised to interface 213 by described network site and offer the correction service of described network site, if the non-adjustable use of service is revised in described network site, described true latitude and longitude information is offered to search unit 214.
Described search unit 214, based on primary importance update information, second place update information or true latitude and longitude information, and navigation Service request is searched for the interest point information corresponding with vehicle current location and offers communication unit 211 from target acquisition data storehouse.
In specific embodiment, described network site is revised service and can also be integrated in navigation server.
Below in conjunction with Fig. 2,3,4, to navigation information of the present invention, provide the course of work of system to be specifically described.
User is when using described navigation information that system is provided, by the input equipment formation navigation Service request of car-mounted terminal.The main control unit 201 of car-mounted terminal receives user's navigation Service request and offers navigation elements 202, and inquire about described local position amending unit 204 and whether can call, the described adjustable used time of local position amending unit 204, being formed with criterion knows and offers positioning unit 203, the described non-adjustable used time of local position amending unit 204, form invalidated identification and offer navigation elements 202.
If positioning unit 203 receives after the invalidated identification that main control unit 201 provides, true latitude and longitude information is offered to navigation elements 202; If receive effective sign that main control unit 201 provides, true latitude and longitude information is offered to local position amending unit 204, afterwards, 204 pairs of true latitude and longitude information of described local position amending unit are revised, and form primary importance update information and offer navigation elements 202.
Accordingly, described navigation elements 202, in the situation that local position amending unit 204 can call, receives the primary importance update information that the navigation Service request provided by main control unit 201 and local position amending unit 204 provide; And the in the situation that of local position amending unit 204 non-adjustable use, the invalidated identification that the true latitude and longitude information that reception is provided by positioning unit 203 and main control unit 201 provide; The true latitude and longitude information and the invalidated identification that in described two kinds of situations, receive, or primary importance update information formed local position information jointly, navigation elements 202 is sent to navigation server together with navigation Service request by communication unit 205 by described local position information.
The control module 212 of navigation server by communication unit 211 after receiving described navigation Service request, true latitude and longitude information, primary importance update information or invalidated identification, first whether inquiry wherein includes primary importance update information: if include described primary importance update information, described control module 212 offers search unit 214 by described primary importance update information and navigation Service request; If do not include primary importance update information, but comprise invalidated identification, whether described control module 212 inquiries can call network site and revise service, if can call, the true latitude and longitude information in local position information is revised to interface 213 by described network site and offer the correction service of described network site, described network site is revised the true latitude and longitude information of service team and is revised, form second place update information and offer search unit 214, control module 212 also offers search unit 214 by navigation Service request simultaneously; And if the non-adjustable use of service is revised in described network site, described control module 212 offers search unit 214 by true latitude and longitude information and navigation Service request.
Then, described search unit 214 is based on navigation Service request, and primary importance update information, second place update information or true latitude and longitude information search for the interest point information corresponding with vehicle current location from target acquisition data storehouse, and described interest point information is sent to car-mounted terminal by communication unit 211.
Car-mounted terminal receives after described interest point information, by Tip element 206, offers user's reference, thereby providing of navigation information has been provided.
In specific embodiment, described true latitude and longitude information is WGS-84 coordinate system coordinate, and described primary importance update information and second place update information are a kind of in Beijing coordinate system coordinate in 1954, Xi'an coordinate system coordinate in 1980 and national coordinate system coordinate in 2000.
The supplying method of navigation information of the present invention and navigation information provide system that the multiple alternative disposal route of revising for the true latitude and longitude information of current location is provided, greatly improved the reliability of position correction information, in addition, also the user profile based in navigation Service request is carried out mark user's personal preference, and then interest point information is more targetedly provided, also effectively improved user's service experience.
Should be appreciated that, example herein and embodiment are only exemplary, and those skilled in the art can in the situation that do not deviate from the spirit and scope of the present invention that the application and claims limit, make various modifications and corrigendum.
Claims (8)
1. a supplying method for navigation information, being suitable for the navigation information that car-mounted terminal and navigation server form provides system, it is characterized in that, comprising:
For described car-mounted terminal:
When the local position correction service of car-mounted terminal can be called, described car-mounted terminal obtains user's navigation Service request, and true latitude and longitude information corresponding to vehicle current location, and based on described local position correction service, described true latitude and longitude information is revised, form primary importance update information, and be sent to navigation server together with navigation Service request; Described true latitude and longitude information is the coordinate that does not adapt to navigation server coordinate system, and described primary importance update information is the coordinate that adapts to navigation server coordinate system; The non-adjustable used time is served in local position correction at car-mounted terminal, described car-mounted terminal obtains user's true latitude and longitude information corresponding to navigation Service request, vehicle current location, and produce the described local position correction of sign and serve the invalidated identification of non-adjustable use, and be sent in the lump navigation server;
For described navigation server:
Described navigation server is when receiving primary importance update information, and near the interest point information based on described primary importance update information and navigation Service request search vehicle current location also sends to car-mounted terminal;
Described navigation server is when receiving invalidated identification, calling network site correction service revises true latitude and longitude information, form second place update information, near the interest point information based on described second place update information and navigation Service request search vehicle current location also sends to car-mounted terminal;
Described second place update information is the coordinate that adapts to navigation server coordinate system.
2. the supplying method of navigation information as claimed in claim 1, it is characterized in that, also comprise, if the non-adjustable use of service is revised in network site, near the interest point information of described navigation server based on true latitude and longitude information and navigation Service request search vehicle current location, and send to car-mounted terminal.
3. the supplying method of navigation information as claimed in claim 1, it is characterized in that, described true latitude and longitude information is WGS-84 coordinate system coordinate, and described primary importance update information and second place update information are a kind of in Beijing coordinate system coordinate in 1954, Xi'an coordinate system coordinate in 1980 and national coordinate system coordinate in 2000.
4. navigation information provides a system, it is characterized in that, comprises car-mounted terminal, navigation server and target acquisition data storehouse, wherein,
Described car-mounted terminal, for obtaining true latitude and longitude information corresponding to navigation Service request and vehicle current location; Whether inquiry local position correction service can call, and then form local position information based on true latitude and longitude information, and described local position information is sent to navigation server together with navigation Service request, in described local position information, include primary importance update information or invalidated identification, true latitude and longitude information; Described car-mounted terminal is also for receiving the interest point information that navigation server provides and being prompted to user; Described true latitude and longitude information is the coordinate that does not adapt to navigation server coordinate system, and described primary importance update information is the coordinate that adapts to navigation server coordinate system;
Described navigation server, be used for receiving navigation Service request and local position information, and inquire about in described local position information whether comprise primary importance update information, if include primary importance update information, near the interest point information of navigation server based on described primary importance update information and navigation Service request search vehicle current location; If include invalidated identification, described navigation server calls network site and revises service true latitude and longitude information is revised, form second place update information, near the interest point information based on described second place update information and navigation Service request search vehicle current location also sends to car-mounted terminal; Described second place update information is the coordinate that adapts to navigation server coordinate system;
Described target acquisition data storehouse, for storing the interest point information for navigation server search.
5. navigation information as claimed in claim 4 provides system, it is characterized in that, described car-mounted terminal comprises main control unit, navigation elements, positioning unit, local position amending unit, communication unit and Tip element, wherein,
Described main control unit, for receiving user's navigation Service request and offering navigation elements; And inquire about described local position amending unit and whether can call, the described adjustable used time of local position amending unit, be formed with criterion and know and offer positioning unit, the described non-adjustable used time of local position amending unit, form invalidated identification and offer positioning unit and navigation elements;
Described positioning unit, for determining user's the corresponding true latitude and longitude information of current location, the invalidated identification providing based on main control unit, offers navigation elements by described true latitude and longitude information; The effective sign providing based on main control unit, offers local position amending unit by true latitude and longitude information;
Described local position amending unit, for it being revised when obtaining described true latitude and longitude information, forms primary importance update information and offers navigation elements;
Described navigation elements, based on true latitude and longitude information and invalidated identification, or primary importance update information formation local position information, and described local position information and navigation Service request are offered to communication unit;
Described communication unit, delivers to navigation server for the local position information and the navigation Service request Concurrency that receive navigation elements and provide; Receive the interest point information of navigation server transmission and offer Tip element;
Described Tip element, the interest point information providing for receiving communication unit is also prompted to user.
6. navigation information as claimed in claim 4 provides system, it is characterized in that, described navigation server comprises communication unit, control module, network site correction interface and search unit, wherein,
Described communication unit, for receiving local position information and the navigation Service request of car-mounted terminal transmission and offering control module; The interest point information that reception search unit provides is also sent to car-mounted terminal;
Interface is revised in described network site, for obtaining network site, revises service, and service is revised for true latitude and longitude information is revised in described network site, forms second place update information and revise interface by described network site to offer search unit;
Described control module, calls network site based on local position Information Selection and revises service, and described local position information comprises primary importance update information, described primary importance update information is offered to search unit; Described local position information comprises invalidated identification, by described network site, revise interface and obtain network site correction service, if described network site is revised service and can be called, the true latitude and longitude information in local position information is revised to interface by described network site and offer the correction service of described network site, if the non-adjustable use of service is revised in described network site, described true latitude and longitude information is offered to search unit;
Described search unit, based on primary importance update information, second place update information or true latitude and longitude information, and navigation Service request is searched for the interest point information corresponding with vehicle current location and offers communication unit from target acquisition data storehouse.
7. navigation information as claimed in claim 4 provides system, it is characterized in that, described network site is revised service and is integrated in navigation server.
8. navigation information as claimed in claim 4 provides system, it is characterized in that, described true latitude and longitude information is WGS-84 coordinate system coordinate, and described primary importance update information and second place update information are a kind of in Beijing coordinate system coordinate in 1954, Xi'an coordinate system coordinate in 1980 and national coordinate system coordinate in 2000.
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