CN101635097A - Dynamic navigation method, method for distributing traffic information, navigation terminal and server - Google Patents
Dynamic navigation method, method for distributing traffic information, navigation terminal and server Download PDFInfo
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- CN101635097A CN101635097A CN200910090268A CN200910090268A CN101635097A CN 101635097 A CN101635097 A CN 101635097A CN 200910090268 A CN200910090268 A CN 200910090268A CN 200910090268 A CN200910090268 A CN 200910090268A CN 101635097 A CN101635097 A CN 101635097A
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Abstract
The invention provides a dynamic navigation method, a method for distributing traffic information, a navigation terminal and a server, wherein the navigation method comprises the following steps: acquiring road information; generating a traffic information broadcast request according to the road information; encoding the broadcast request so as to generate a broadcast request data packet; sending the broadcast request data packet to the server, and enabling the server to acquire dynamic traffic information corresponding to the road information according to the broadcast request data packet; receiving the dynamic traffic information returned by the server, and carrying out dynamic navigation according to the dynamic traffic information. The scheme of the invention enables the navigation terminal to carry out dynamic navigation based on the traffic information of roads.
Description
Technical field
The present invention relates to navigation field, be meant method, navigation terminal and the server of a kind of dynamic navigation method, distributing traffic information especially.
Background technology
Along with the development of domestic navigation industry, airmanship develops into dynamic navigation from the static state navigation, promptly dynamically carries out path planning and navigation according to dynamic information.Present dynamic information mainly is a real-time road, and is that the real-time road condition information of entire city is issued together.Navigation user may only be paid close attention to the real-time road of part route, and the real-time road condition information of existing entire city is issued together, can not satisfy user's actual program request demand.
Summary of the invention
The technical problem to be solved in the present invention provides a kind ofly can carry out dynamic program request to transport information, and carries out the dynamic navigation method of dynamic navigation, method, navigation terminal and the server of distributing traffic information according to transport information, satisfies user's actual demand.
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 dynamic navigation method, comprising:
Obtain road information;
According to described road information, produce a transport information order request;
Described order request is encoded, produce the order request packet;
Described order request packet is sent to server, makes described server obtain the dynamic information corresponding with described road information according to described order request packet;
Receive the dynamic information that described server returns, and carry out dynamic navigation according to described dynamic information.
Wherein, the described step of obtaining road information is specially:
From map of navigation electronic, obtain the road information of the current position of navigation terminal; Perhaps
From map of navigation electronic, obtain the road information of appointment.
Wherein, when described road information was the road information of the current position of navigation terminal, described according to described road information, the step that produces a transport information order request was specially:
Every the first Preset Time section,, produce a transport information order request according to described road information.
Wherein, described dynamic information comprises:
At least a in real-time road condition information, real-time traffic event information, the real-time traffic control information.
Wherein, described described order request is encoded, the step that produces the order request packet is specially:
According to default custom protocol described order request is encoded, produce the order request packet;
Described packet comprises: packet header, function type, key, data content and end mark; Wherein said function type comprises one-level type and secondary type; Described one-level type is the key instruction, and described secondary type is the instruction of key delivery direction; Perhaps described one-level type is the transport information instruction, and described second level type is transport information transmission direction instruction.
Embodiments of the invention also provide a kind of method of distributing traffic information, comprising:
Dynamically obtain transport information, and store described transport information;
Receive the order request packet that navigation terminal sends, described order request packet is decoded, obtain the dynamic information of order request correspondence, wherein, described order request packet is that described navigation terminal produces according to road information;
Described dynamic information is sent to described navigation terminal, make described navigation terminal carry out dynamic navigation according to described dynamic information.
Wherein, describedly dynamically obtain transport information, and the step of storing described transport information is specially:
Every the second Preset Time section, obtain transport information from the information source database, and store described transport information with the catalogue file form, include the current time stamp in the described catalogue file;
The described step of obtaining the dynamic information of order request correspondence is specially:
According to the stamp of the current time in the described catalogue file, obtain the dynamic information of order request correspondence.
Embodiments of the invention also provide a kind of navigation terminal, comprising:
Locating module is used to obtain road information;
The point broadcasting module is used for according to described road information, produces a transport information order request;
Coding module is used for described order request is encoded, and produces the order request packet;
Communication module is used for described order request packet is sent to server, makes described server obtain the dynamic information corresponding with described road information according to described order request packet;
Navigation module is used to receive the dynamic information that described server returns, and carries out dynamic navigation according to described dynamic information.
Wherein, above-mentioned navigation terminal also comprises:
Time block is used to be provided with the first Preset Time section, and when described some broadcasting module sends order request, picks up counting, and when the described first Preset Time section arrives, restarts timing;
Described some broadcasting module according to described road information, produces a transport information order request every the described first Preset Time section.
Embodiments of the invention also provide a kind of server, comprising:
Acquisition module is used for dynamically obtaining transport information;
Memory module is used to store described transport information;
Communication module is used to receive the order request packet that navigation terminal sends;
Processing module is used for described order request packet is decoded, and obtains the dynamic information of order request correspondence from described memory module;
Described communication module sends to described navigation terminal with the dynamic information of described order request correspondence, makes described navigation terminal carry out dynamic navigation according to described dynamic information; Wherein, described order request packet is that described navigation terminal produces according to road information;
Update module is used for every the second Preset Time section transport information that described memory module is stored being upgraded.
Embodiments of the invention have following beneficial effect:
The location-based traffic-information service of such scheme, can dynamically provide particular link real-time road, traffic events, traffic control information and can dynamically carry out path planning and navigation according to these information; Can also dynamically provide the current place of user road and relevant road real-time road, traffic events, traffic control information and can dynamically carry out path planning and navigation according to these information, satisfy the actual program request demand of user, simultaneously, dynamic information about the road correspondence of program request, compare with the traffic information of entire city, data volume is also little, and the transfer efficiency between navigation terminal and the server also can be improved.
Description of drawings
Fig. 1 is the schematic flow sheet of embodiments of the invention dynamic navigation method;
Fig. 2 is the schematic flow sheet of the method for embodiments of the invention distributing traffic information;
Fig. 3 is the structural representation of embodiments of the invention navigation terminal;
Fig. 4 is the structural representation of embodiments of the invention server;
Fig. 5 is the concrete application flow synoptic diagram of navigation terminal and server.
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 issued together at the real-time road condition information of entire city in the prior art, can not satisfy the problem of user's actual demand, provide a kind of and can carry out dynamic program request transport information, and carry out the dynamic navigation method of dynamic navigation, method, navigation terminal and the server of distributing traffic information according to transport information, satisfy user's actual demand.
As shown in Figure 1, the embodiments of the invention dynamic navigation method comprises:
Step 15 receives the dynamic information that described server returns, and carries out dynamic navigation according to described dynamic information.
Among this embodiment, obtain road information by navigation terminal, and this road information sent to server by order request, server then can provide at least a in the real-time road condition information, real-time traffic event information, real-time traffic control information of this navigation terminal particular link, make navigation terminal dynamically dynamically carry out path planning and navigation, satisfy user's actual program request demand according to these transport information.
Wherein, above-mentioned steps 11 can be specially: the road information that obtains the current position of navigation terminal from map of navigation electronic; As determining the current geographic location of this navigation terminal, and from map of navigation electronic, obtain this place, geographic position road information according to this geographical location information by GPS (GPS).
Above-mentioned steps 11 also can be specially: the road information that obtains appointment from map of navigation electronic.
When obtaining the road information of the current position of navigation terminal from map of navigation electronic, above-mentioned steps 12 can be specially: every the first Preset Time section, according to described road information, produce a transport information order request;
After the user initiates the transport information order request by navigation terminal, server can return dynamic information based on road according to this order request, if this road is the road of the current position of navigation terminal, this navigation terminal can be automatically every one first Preset Time section, as 5 fens clock times, can initiate order request once more, server returns to navigation terminal with the latest tendency transport information of this up-to-date road correspondence in navigation terminal place, makes navigation terminal carry out dynamic route planning and navigation according to this dynamic information.
As, if the dynamic information of the current place of navigation terminal road correspondence is a real-time road condition information, and this real-time road condition information shows that current this highway section is a congestion, then points out the user to slow down to go slowly or selects other feasible circuit to detour, and this circuit that detours can show at navigation terminal; If the dynamic information of the current place of navigation terminal road correspondence is the real-time traffic event information, and this real-time traffic event information shows that traffic hazard has taken place highway section, current navigation terminal place, and then can point out on electronic chart too can detour line information; If the dynamic information of the current place of navigation terminal road correspondence is a real-time traffic control information, and this real-time traffic control information shows that highway section, the current place of navigation terminal implemented traffic control temporarily, and then can point out in electronic chart too can detour line information; To make things convenient for navigation terminal can carry out dynamic route planning and navigation; And when prompting can detour line information in the electronic chart of navigation terminal, also can adopt the mode of voice broadcast to point out the user.
In addition, can be specially: according to default custom protocol described order request is encoded, produce the order request packet in above-mentioned steps 13; Described packet comprises: packet header, function type, key, data content and end mark; Wherein said function type comprises one-level type and secondary type, and described one-level type is key instruction or transport information instruction, and described second level type is the transmission direction instruction of key or transport information.This custom protocol form such as following table 1:
Table 1
Beginning with " #GL " expression information accounts for 3 bytes.Have only to work as and receive that correct information header just begins to receive the data of back, otherwise do not handle.Function type is divided into two-stage, respectively takies 1 byte, immediately following after packet header.The one-level type is divided into key instruction (K) or traffic-information service instruction (T), uses letter representation, and concrete definition is as being: the one-level types value is " K ", and size is a byte; Be mainly used in terminal to server end request key, and key returned terminal by server; The one-level types value is " T ", and size is a byte, is mainly used in program request and the issue of finishing traffic-information service.The secondary type is divided into up or descending, up can the expression with specific character (as " A " in the following table 2 or " C " in the following table 3), and another specific character of descending usefulness (as " B " in the following table 2 or " D " in the following table 3) is expressed.
Table 2 (key handling instruction)
Table 3 (traffic-information service instruction)
In the foregoing description, navigation terminal utilizes wireless communication technique (GPRS or CDMA or 3G etc.) to adopt Socket mode Connection Service device end, server end is monitored the Socket port, handle accordingly according to the instruction that navigation terminal sends, by Socket the result is returned navigation terminal by server end again.
Coding/decoding carries out according to the described communications protocol form of above-mentioned table 1, the communication protocol of navigation terminal and server is U format, wherein character all adopts ASCII character to encode, certainly also be not limited to ASCII character, as long as navigation terminal adopts identical agreement with server, can discern the packet that sends each other mutually and get final product.
And server is according to the order request of navigation terminal, the theing contents are as follows of the dynamic information that the navigation terminal is returned:
Table 4 (transport information classification coding schedule)
After navigation terminal is received the transport information that server returns, carry out respective handling and just can be applied in path planning and the navigation.
In navigation, can carry out path planning and navigation again according to transport information, to inquire about the traffic conditions of relevant road segments during path planning, the highway section of avoiding blocking up, generation traffic events highway section and control section.Corresponding road conditions of real-time reminding user and traffic events, control traffic message during Voice Navigation, the guiding user avoid blocking up the highway section, traffic events highway section and control section take place.
In the above embodiment of the present invention, navigation terminal can be smart mobile phone, PND and intelligent vehicle-carrying navigation instrument, need to support wireless communication technique (GPRS or CDMA or 3G etc.), by dynamic information service method based on road, for in real time, dynamically providing the transport information of up-to-date generation and be applied to, the user satisfies user's actual program request demand in the navigation.
As shown in Figure 2, embodiments of the invention also provide a kind of method of distributing traffic information, comprising:
Wherein, above-mentioned steps 21 can be specially:
Every the second Preset Time section, obtain transport information from the information source database, and store described transport information with the catalogue file form, include the current time stamp in the described catalogue file;
Insert transport information as server from information source, carry out timing and insert, upgraded a dynamic information such as per 5 minutes and comprise real-time road condition information, traffic event information, control traffic message etc., to realize the timely transmission of information to guidance terminal.
Source of traffic information The data catalogue file form is deposited, and the oracle listener of server reads file under the respective directories according to the request instruction of navigation terminal, packs and turns back to navigation terminal.
Have a timestamp file such as timestamp.txt in the file at every type file place, content is current timestamp, the timestamp content in the corresponding various types of real-time files titles of this content; Also have a listing file such as sourcelist.txt, content is the reference number of a document tabulation, cuts apart with English comma.Wherein, the title of these information source files all is to form with fixing key word+current time stamp+reference number of a document.Shown in the table specific as follows.
Table 5 (traffic information file naming rule and deposit path complete list)
Based on the Storage Format of the dynamic information in this table 5, in the above-mentioned steps 22, the step of obtaining the dynamic information of order request correspondence is specially:
According to the stamp of the current time in the described catalogue file, obtain the dynamic information of order request correspondence.
In above-mentioned steps 23, server is encoded dynamic information, and its concrete coded system is as described in the above-mentioned table 4.
As shown in Figure 3, embodiments of the invention also provide a kind of navigation terminal 30, comprising:
Locating module 31 is used to obtain road information; This road information can be the road information of the current position of navigation terminal; It also can be the road information that from map of navigation electronic, obtains appointment;
Again as shown in Figure 4, this navigation terminal can also comprise:
Time block is used to be provided with the first Preset Time section, and when described some broadcasting module sends order request, picks up counting, and when the described first Preset Time section arrives, restarts timing;
Described some broadcasting module 32 according to described road information, produces a transport information order request every the described first Preset Time section.As 5 fens clock times, can initiate order request once more, server returns to navigation terminal with the latest tendency transport information of this up-to-date road correspondence in navigation terminal place, makes navigation terminal carry out dynamic route planning and navigation according to this dynamic information.
Whole features of the method for above-mentioned dynamic navigation shown in Figure 1 do not repeat them here all applicable in this navigation terminal.
As shown in Figure 4, embodiments of the invention also provide a kind of server 40, comprising:
Acquisition module 41 is used for dynamically obtaining transport information; Insert transport information as server from information source, carry out timing and insert;
Memory module 42 is used to store described transport information; Wherein, this transport information can comprise: real-time road condition information, real-time traffic event information and real-time traffic control information; And adopting the catalogue file form to deposit, concrete location mode is shown in above-mentioned table 5;
Communication module 43 is used to receive the order request packet that navigation terminal sends;
Processing module 44 is used for described order request packet is decoded, and obtains the dynamic information of order request correspondence from described memory module; Described communication module 43 sends to described navigation terminal with the dynamic information of described road information correspondence, makes described navigation terminal carry out dynamic navigation according to described dynamic information; Wherein, described order request packet is that described navigation terminal produces according to road information; Specifically, need encode according to above-mentioned custom protocol equally to this dynamic information, dynamic information behind the coding is sent to navigation terminal, navigation terminal receives after the packet, decode, obtain dynamic information, and carry out dynamic route planning and navigation according to this transport information;
Update module 45 is used for every the second Preset Time section transport information that described memory module is stored being upgraded; Upgraded a dynamic information such as per 5 minutes and comprise real-time road condition information, traffic event information, control traffic message etc., to realize the timely transmission of information to guidance terminal.
Same reason, all features of the method for above-mentioned distributing traffic information shown in Figure 2 also all are applicable to book server, do not repeat them here.
As shown in Figure 5, specify position-based traffic-information service application flow in conjunction with above-mentioned navigation terminal shown in Figure 3 and above-mentioned server shown in Figure 4:
After navigation terminal is opened, can obtain its current position information by its locating module 31, and from electronic chart, demonstrate the road section information of the current place of user road according to this positional information;
The user can comprise information such as real-time road, traffic events, traffic control by clicking the different different transport information of button program request by some broadcasting module 32 program request transport information; Point will be determined road sowing time, is defaulted as current place road, can certainly select other road at electronic chart;
33 pairs of Information On Demand of the coding module of navigation terminal are encoded then;
The communication module 34 of navigation terminal sends the connection application to the server of service centre, and service centre verifies that to navigation terminal validated user connects, and the disabled user refuses to connect;
The order request that the communication module 34 of navigation terminal sends after encoding after connecting;
The acquisition module 41 of server dynamically obtains transport information from data source server, and is stored in the memory module 42 of this server;
The communication module 43 of server obtains the order request that navigation terminal sends, and is decoded earlier by the decoding unit in the processing module 44, obtains corresponding transport information according to transport information type and road from the memory module 42 of this server then;
Utilize the coding unit in the processing module 44 of this server that transport information is encoded then, return to navigation terminal by communication module 43.
Navigation terminal is decoded earlier after receiving transport information, processs and displays then, can voice broadcast, in navigation procedure, can also carry out path planning and navigation again according to up-to-date transport information.
And in above-mentioned implementation process, after a certain type transport information of user's program request, road conditions information on demand in the time of strictly according to the facts, navigation terminal can send a request from the trend server every a time period (as 5 minutes) and obtain up-to-date transport information, initiatively stops to receive up to the user;
And server end then also can upgrade by the transport information that 45 pairs of described memory modules 42 of update module are stored, i.e. transport information access is that dynamical fashion inserts, as per 5 minutes renewal primary informations.Link information source server at first during access information obtains up-to-date transport information then, obtains to be updated to the corresponding document catalogue after finishing.
To sum up, the above embodiment of the present invention in real time, dynamically provides the transport information of up-to-date generation for the user and is applied to and satisfies user's actual program request demand in the navigation.
The above is a preferred implementation 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 (10)
1. a dynamic navigation method is characterized in that, comprising:
Obtain road information;
According to described road information, produce a transport information order request;
Described order request is encoded, produce the order request packet;
Described order request packet is sent to server, makes described server obtain the dynamic information corresponding with described road information according to described order request packet;
Receive the dynamic information that described server returns, and carry out dynamic navigation according to described dynamic information.
2. method according to claim 1 is characterized in that, the described step of obtaining road information is specially:
From map of navigation electronic, obtain the road information of the current position of navigation terminal; Perhaps
From map of navigation electronic, obtain the road information of appointment.
3. method according to claim 2 is characterized in that, when described road information was the road information of the current position of navigation terminal, described according to described road information, the step that produces a transport information order request was specially:
Every the first Preset Time section,, produce a transport information order request according to described road information.
4. method according to claim 1 is characterized in that, described dynamic information comprises:
At least a in real-time road condition information, real-time traffic event information, the real-time traffic control information.
5. method according to claim 1 is characterized in that, described described order request is encoded, and the step that produces the order request packet is specially:
According to default custom protocol described order request is encoded, produce the order request packet;
Described packet comprises: packet header, function type, key, data content and end mark; Wherein said function type comprises one-level type and secondary type; Described one-level type is the key instruction, and described secondary type is the instruction of key delivery direction; Perhaps described one-level type is the transport information instruction, and described second level type is transport information transmission direction instruction.
6. the method for a distributing traffic information is characterized in that, comprising:
Dynamically obtain transport information, and store described transport information;
Receive the order request packet that navigation terminal sends, described order request packet is decoded, obtain the dynamic information of order request correspondence, wherein, described order request packet is that described navigation terminal produces according to road information;
Described dynamic information is sent to described navigation terminal, make described navigation terminal carry out dynamic navigation according to described dynamic information.
7. method according to claim 6 is characterized in that, describedly dynamically obtains transport information, and the step of storing described transport information is specially:
Every the second Preset Time section, obtain transport information from the information source database, and store described transport information with the catalogue file form, include the current time stamp in the described catalogue file;
The described step of obtaining the dynamic information of order request correspondence is specially:
According to the stamp of the current time in the described catalogue file, obtain the dynamic information of order request correspondence.
8. a navigation terminal is characterized in that, comprising:
Locating module is used to obtain road information;
The point broadcasting module is used for according to described road information, produces a transport information order request;
Coding module is used for described order request is encoded, and produces the order request packet;
Communication module is used for described order request packet is sent to server, makes described server obtain the dynamic information corresponding with described road information according to described order request packet;
Navigation module is used to receive the dynamic information that described server returns, and carries out dynamic navigation according to described dynamic information.
9. navigation terminal according to claim 8 is characterized in that, also comprises:
Time block is used to be provided with the first Preset Time section, and when described some broadcasting module sends order request, picks up counting, and when the described first Preset Time section arrives, restarts timing;
Described some broadcasting module according to described road information, produces a transport information order request every the described first Preset Time section.
10. a server is characterized in that, comprising:
Acquisition module is used for dynamically obtaining transport information;
Memory module is used to store described transport information;
Communication module is used to receive the order request packet that navigation terminal sends;
Processing module is used for described order request packet is decoded, and obtains the dynamic information of order request correspondence from described memory module;
Described communication module sends to described navigation terminal with the dynamic information of described order request correspondence, makes described navigation terminal carry out dynamic navigation according to described dynamic information; Wherein, described order request packet is that described navigation terminal produces according to road information;
Update module is used for every the second Preset Time section transport information that described memory module is stored being upgraded.
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| CN102445209A (en) * | 2011-09-28 | 2012-05-09 | 深圳市赛格导航科技股份有限公司 | Dynamic traffic navigation method and dynamic traffic navigation equipment thereof |
| CN103310628A (en) * | 2012-03-06 | 2013-09-18 | 深圳富泰宏精密工业有限公司 | System and method for traffic information service |
| CN102903255A (en) * | 2012-09-17 | 2013-01-30 | 北京百纳威尔科技有限公司 | Real-time monitoring method, terminal and system for road condition information |
| CN107705603A (en) * | 2016-11-11 | 2018-02-16 | 西安艾润物联网技术服务有限责任公司 | Traffic events navigation method for early warning and device |
| CN107293143A (en) * | 2017-07-28 | 2017-10-24 | 维沃移动通信有限公司 | The acquisition methods and terminal device of transport information |
| CN110060492A (en) * | 2019-04-25 | 2019-07-26 | 李泰� | A kind of method and system of intelligent control and route planning prediction |
| CN110570674A (en) * | 2019-09-06 | 2019-12-13 | 杭州博信智联科技有限公司 | Vehicle-road cooperative data interaction method and system, electronic equipment and readable storage medium |
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