CN102364550A - Method and device for selecting information trigger position - Google Patents
Method and device for selecting information trigger position Download PDFInfo
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- CN102364550A CN102364550A CN2011103087588A CN201110308758A CN102364550A CN 102364550 A CN102364550 A CN 102364550A CN 2011103087588 A CN2011103087588 A CN 2011103087588A CN 201110308758 A CN201110308758 A CN 201110308758A CN 102364550 A CN102364550 A CN 102364550A
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- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09B—EDUCATIONAL OR DEMONSTRATION APPLIANCES; APPLIANCES FOR TEACHING, OR COMMUNICATING WITH, THE BLIND, DEAF OR MUTE; MODELS; PLANETARIA; GLOBES; MAPS; DIAGRAMS
- G09B5/00—Electrically-operated educational appliances
- G09B5/08—Electrically-operated educational appliances providing for individual presentation of information to a plurality of student stations
- G09B5/12—Electrically-operated educational appliances providing for individual presentation of information to a plurality of student stations different stations being capable of presenting different information simultaneously
- G09B5/125—Electrically-operated educational appliances providing for individual presentation of information to a plurality of student stations different stations being capable of presenting different information simultaneously the stations being mobile
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Abstract
The embodiment of the invention provides a method and a device for selecting an information trigger position, relates to the field of intelligent traffic information service, and can display graphical real-time traffic information on a terminal in appropriate time. The method comprises the following steps of: by using a pre-estimation information trigger distance which is set and a recording value of historical time in which a vehicle runs for the pre-estimation information trigger distance, acquiring a reference speed at which the vehicle runs from a pre-estimation information trigger position to a graph representation position, and thus obtaining an appropriate practical information trigger distance by multiplying pre-set reference time by the reference speed; and determining an appropriate practical information trigger position. The embodiment of the invention is applicable to displaying of the graphical real-time traffic information.
Description
Technical field
The present invention relates to the intelligent transportation information service field, relate in particular to method and device that a kind of information trigger position is chosen.
Background technology
Constantly perfect along with intelligent transport technology, more and more users is brought into use various terminals, waits and obtains real-time figure transport information like navigating instrument terminal (GPS, Global Positioning System), mobile phone terminal.With the navigating instrument terminal is example, on the navigating instrument terminal, can displayed map, and the present position of vehicle, and road speed, the route prompting, the crossing such as turns at running information.When vehicle ' arrives the information trigger position; Request can be sent from the trend server in the navigating instrument terminal; And the figure that after the information that reception server returns, shows driving difference crossing, the place ahead is represented the graphical real-time traffic information of position; So that the user is well understood to the real-time traffic situation at driving difference crossing, the place ahead, and make corresponding decision-making.
When stating technical scheme in realization; The inventor finds that there is following problem at least in prior art: in the prior art; If the information trigger position represents the position far away excessively apart from figure, the terminal is too early display graphics Real-time Traffic Information, and user's driving is impacted; If the information trigger position represents the position near excessively apart from figure, the display graphics Real-time Traffic Information that the terminal will be slow excessively causes the user not have the enough time to make a policy.More than under two kinds of situation, the terminal can not provide high-quality graphical real-time traffic information Presentation Function, makes user experience not good.
Summary of the invention
Method and device that embodiments of the invention provide a kind of information trigger position to choose can make the terminal at suitable time showing graphical real-time traffic information, have improved the quality that the terminal graphical real-time traffic information shows.
For achieving the above object, embodiments of the invention adopt following technical scheme:
The method that a kind of information trigger position is chosen comprises:
Choose and estimate the information trigger position;
Represent the information of estimating between the position to trigger distance, estimate the historical time record value that information triggers distance according to said information trigger position and the figure estimated, obtain the said information trigger position is represented the position to said figure the reference velocity of estimating through said;
According to said reference velocity and reference time of pre-seting, calculate to such an extent that actual information triggers distance, and definite actual information trigger position.
The device that a kind of information trigger position is chosen comprises:
The information trigger position of estimating is chosen the unit, is used to choose estimate the information trigger position;
The reference velocity acquiring unit; Be used for representing the information of estimating between the position to trigger distance, estimate the historical time record value that information triggers distance, obtain the said information trigger position is represented the position to said figure the reference velocity of estimating through said according to said information trigger position and the figure estimated;
The actual information trigger position is chosen the unit, is used for according to said reference velocity and reference time of pre-seting, calculates to such an extent that actual information triggers distance, and definite actual information trigger position.
Method and device that the embodiment of the invention provides a kind of information trigger position to choose; Triggering distance and vehicle through the information of estimating that has been provided with crosses the said historical time record value of estimating information triggering distance and obtains vehicle and estimate the information trigger position is represented the position to said figure reference velocity from said; Thereby multiply by the reference time that pre-sets with reference velocity obtains suitable actual information and triggers distance; And then definite suitable actual information trigger position; Make the terminal improve the quality that the terminal graphical real-time traffic information shows at suitable time showing graphical real-time traffic information.
Description of drawings
In order to be illustrated more clearly in the embodiment of the invention or technical scheme of the prior art; To do to introduce simply to the accompanying drawing of required use in embodiment or the description of the Prior Art below; Obviously, the accompanying drawing in describing below only is some embodiments of the present invention, for those of ordinary skills; Under the prerequisite of not paying creative work, can also obtain other accompanying drawing according to these accompanying drawings.
The schematic flow sheet of the method that a kind of information trigger position that Fig. 1 provides for embodiment one is chosen;
The schematic flow sheet of the method that a kind of information trigger position that Fig. 2 provides for embodiment two is chosen;
The structural representation of the device that a kind of information trigger position that Fig. 3 provides for embodiment three is chosen;
Concrete real road synoptic diagram in the method that a kind of information trigger position that Fig. 4 provides for embodiment two is chosen.
Embodiment
To combine the accompanying drawing in the embodiment of the invention below, the technical scheme in the embodiment of the invention is carried out clear, intactly description, obviously, described embodiment only is the present invention's part embodiment, rather than whole embodiment.Based on the embodiment among the present invention, those of ordinary skills are not making the every other embodiment that is obtained under the creative work prerequisite, all belong to the scope of the present invention's protection.
Embodiment 1:
The method that the embodiment of the invention provides a kind of information trigger position to choose, as shown in Figure 1, this method may further comprise the steps:
101, choose and estimate the information trigger position.
102, represent the information of estimating between the position to trigger distance, estimate the historical time record value that information triggers distance according to said information trigger position and the figure estimated, obtain the said information trigger position is represented the position to said figure the reference velocity of estimating through said.
On behalf of the position, the said information trigger position of estimating describe with respect to figure, and it is first difference crossing that graphical real-time traffic information is described that said figure is represented the position.Said figure is represented the position and the distance estimated between the information trigger position triggers distance for estimating information.The information trigger position of estimating can be represented the position and the information of estimating that set triggers distance and chooses through fixed figure.
Said historical time record value can obtain based on the historical traffic information data, triggers distance by the information of estimating that has set and can obtain above-mentioned reference velocity divided by above-mentioned historical record time value.
103, according to said reference velocity and reference time of pre-seting, calculate to such an extent that actual information triggers distance, and definite actual information trigger position.
The actual information trigger position is that the terminal begins to server requests graphical real-time traffic information place.
The method that the embodiment of the invention provides a kind of information trigger position to choose; Cross divided by vehicle and saidly estimate historical time record value that information triggers distance and obtain vehicle and estimate the information trigger position is represented the position to said figure reference velocity through trigger distance with the information of estimating that has been provided with from said; Thereby multiply by the reference time that pre-sets with reference velocity obtains suitable actual information and triggers distance; And then definite suitable actual information trigger position; Make the terminal improve the quality that the terminal graphical real-time traffic information shows at suitable time showing graphical real-time traffic information.
Embodiment 2:
The method that the embodiment of the invention provides a kind of information trigger position to choose, as shown in Figure 2, this method may further comprise the steps:
201, according to the selection rule that pre-sets, choose and estimate the information trigger position.
202, represent the information of estimating between the position to trigger distance, estimate the historical time record value that information triggers distance according to said information trigger position and the figure estimated, obtain the said information trigger position is represented the position to said figure the reference velocity of estimating through said.
On behalf of the position, the said information trigger position of estimating describe with respect to figure, and it is first difference crossing that graphical real-time traffic information is described that said figure is represented the position.Said figure is represented the position and the distance estimated between the information trigger position triggers distance for estimating information.The road speed of vehicle is different (for example, fast than on ordinary road of the travel speed of vehicle on the super expressway) on different roads, is different also so the information of estimating that is provided with triggers distance.The information of estimating triggers distance and can be provided with according to the selection rule of presetting the different distance value to different roads.The information trigger position of estimating then triggers distance according to the information of estimating that has been provided with and chooses.
Wherein said historical time record value comprises the arithmetic mean of at least twice historical time record.
The historical time record value can obtain based on the historical traffic information data; Wherein said historical time record value will obtain at least twice historical time record; Calculate the arithmetic mean of historical time record as the historical time record value; Can make the historical time record value more accurate like this, can not make the historical time record value that obtains have too big contingency, thereby make choosing of actual information trigger position more reasonable because of reasons such as accident or traffic congestions.
203, according to said reference velocity and reference time of pre-seting, calculate to such an extent that actual information triggers distance, and definite actual information trigger position.
Wherein, the said reference time comprises: be issued to server from terminal request and return call duration time and the user of the graphical real-time traffic information time sum that reads, makes a strategic decision and take action and consume to information.The above-mentioned reference time is preset in the terminal.
Being issued to server from terminal request, to return the call duration time of graphical real-time traffic information relevant with the communication speed at terminal, can call duration time be set according to the different terminal system; The user can be by human response's empirical value acquisition to reading, make a strategic decision and taking action the time that consumes of graphical real-time traffic information.
To use the choosing method of above-mentioned actual information trigger position to illustrate below:
At first, triggering distance according to the information of estimating of super expressway and through street 1000m, Ordinary Rd 800m chooses and estimates the information trigger position.Said information trigger position to the figure of estimating is represented and at least one transport information issue highway section is arranged (transport information issue highway section is the shortest path section of transport information issue) between the position; As shown in Figure 4; Suppose to issue highway section R1, R2, R3, R4 for totally 4; Its lengths table is shown DR1, DR2, DR3, DR4, and vehicle is expressed as t (R1), t (R2), t (R3), t (R4) in the hourage in each issue highway section.
Then, select not influence the nearest week that the special incident (as having a holiday or vacation National Day) of traffic takes place, every day 7:00 to 20:00 historical data.Be set to a time band in per 5 minutes, 12 time bands were then arranged in 1 hour, total 12*13=156 the time band of 7:00 to 20:00 every day is so all 7:00 to 20:00 obtain data volume n=7*156=1092 altogether.Vehicle is designated as t (R) 1, t (R) 2, t (R) 3......t (R) n at the running time of each time band of issue highway section, is t (R1) 1, t (R1) 2, t (R1) 3......t (R1) n like vehicle in the hourage of each time band of issue highway section R1.The historical time that R1 was with to each time of R4 is designated as t1, t2, t3......tn, then:
t1＝t(R1)1+t(R2)1+t(R3)1+t(R4)1
t2＝t(R1)2+t(R2)2+t(R3)2+t(R4)2
......
So historical time record value
Reference velocity
Can be set to 5 seconds by communication time at this, the user is set to 5 seconds to the time for reading of graphical real-time traffic information, and the decision-making time is set to 5 seconds, and the action time is set to 10 seconds; So the reference time Tc that pre-sets is 25 seconds.
Trigger distance L=V*Tc so can obtain actual information
On behalf of the position, actual information triggering distance and fixed corresponding figure according to obtaining just can choose the actual information trigger position.
When user's steering vehicle goes on the way, the current location and the travel direction of vehicle will be confirmed in the terminal.When vehicle arrives the actual information trigger position; The terminal will judge whether the travel direction of vehicle is pointed to actual information trigger position graph of a correspondence and represented the position; When sensing actual information trigger position graph of a correspondence was represented the position, graphical real-time traffic information will be sent to server requests in the terminal; If the travel direction of vehicle is not to point to actual information trigger position graph of a correspondence to represent the position, request just can not sent to server in the terminal.If server is received request, server will send this actual information trigger position graph of a correspondence Real-time Traffic Information to the terminal; Then, the terminal will receive and demonstrate graphical real-time traffic information.The user can decide the driving path according to the graphical real-time traffic information that demonstrates.The terminal can judge whether vehicle has sailed out of figure and represented the position, represents the position then closes graphical real-time traffic information if vehicle has sailed out of figure, does not represent the position then continues the display graphics Real-time Traffic Information if vehicle also sails out of figure.
The method that the embodiment of the invention provides a kind of information trigger position to choose; Triggering distance with the information of estimating that has been provided with crosses divided by vehicle and saidly estimates historical time record value that information triggers distance and obtain vehicle and estimate the information trigger position is represented the position to said figure reference velocity from said; Thereby multiply by the reference time that pre-sets with reference velocity obtains suitable actual information and triggers distance; And then definite suitable actual information trigger position; Make the terminal improve the quality of terminal graphical real-time traffic information Presentation Function at suitable time showing graphical real-time traffic information.Estimate information through the selection rule setting that pre-sets in embodiments of the present invention and trigger distance, the arithmetic mean of the historical time record with at least twice can make choosing of actual information trigger position more reasonable as the historical time record value like this.
Embodiment 3:
The device that the embodiment of the invention provides a kind of information trigger position to choose, as shown in Figure 3, said device comprises: the information trigger position of estimating is chosen unit 31, reference velocity acquiring unit 32, actual information trigger position and is chosen unit 33.
The information trigger position of estimating is chosen unit 31 and is used to choose and estimates the information trigger position.
Reference velocity acquiring unit 32 is used for representing the information of estimating between the position to trigger distance, estimate the historical time record value that information triggers distance through said according to said information trigger position and the figure estimated, and obtains the said information trigger position is represented the position to said figure the reference velocity of estimating.
On behalf of the position, the said information trigger position of estimating describe with respect to figure, and it is first difference crossing that graphical real-time traffic information is described that said figure is represented the position.Said figure is represented the position and the distance estimated between the information trigger position triggers distance for estimating information.The information trigger position of estimating can be represented the position and the information of estimating that set triggers distance and chooses through fixed figure.
Above-mentioned historical time record value can obtain based on the historical traffic information data; Wherein said historical time record value will obtain at least twice historical time record; Calculate the arithmetic mean of historical time record as the historical time record value; Can make the historical time record value more accurate like this, can not make the historical time record value that obtains have too big contingency, thereby make choosing of actual information trigger position more reasonable because of reasons such as accident or traffic congestions.
The actual information trigger position is chosen unit 33 and is used for according to said reference velocity and reference time of pre-seting, calculates to such an extent that actual information triggers distance, and definite actual information trigger position.
The above-mentioned reference time comprises: be issued to server from terminal request and return call duration time and the user of the graphical real-time traffic information time sum that reads, makes a strategic decision and take action and consume to information.Being issued to server from terminal request, to return the call duration time of graphical real-time traffic information relevant with the communication speed at terminal, can call duration time be set according to the different terminal system; The user can be by human response's empirical value acquisition to reading, make a strategic decision and taking action the time that consumes of information.The above-mentioned reference time is preset in the actual information trigger position and chooses in the unit 33.
Further, the said information trigger position of estimating is chosen unit 31 and also is used for choosing and estimating the information trigger position according to the selection rule that pre-sets.
On behalf of the position, the above-mentioned information trigger position of estimating describe with respect to figure, and it is first difference crossing that graphical real-time traffic information is described that said figure is represented the position.Said figure is represented the position and the distance estimated between the information trigger position triggers distance for estimating information.The road speed of vehicle is different (for example, fast than on ordinary road of the travel speed of vehicle on the super expressway) on different roads, is different also so the information of estimating that is provided with triggers distance.The information of estimating triggers distance and can be provided with according to the selection rule of presetting the different distance value to different roads.The information trigger position of estimating then triggers distance according to the information of estimating that has been provided with and chooses.
The information trigger position of estimating is chosen unit 31, reference velocity acquiring unit 32, actual information trigger position and is chosen unit 33 and be arranged in the terminal.
The device that the embodiment of the invention provides a kind of information trigger position to choose; Triggering distance with the information of estimating that has been provided with crosses divided by vehicle and saidly estimates historical time record value that information triggers distance and obtain vehicle and estimate the information trigger position is represented the position to said figure reference velocity from said; Thereby multiply by the reference time that pre-sets with reference velocity obtains suitable actual information and triggers distance; And then definite suitable actual information trigger position; Make the terminal improve the quality of terminal graphical real-time traffic information Presentation Function at suitable time showing graphical real-time traffic information.Estimate information through the selection rule setting that pre-sets in embodiments of the present invention and trigger distance, the arithmetic mean of the historical time record with at least twice can make choosing of actual information trigger position more reasonable as the historical time record value like this.
One of ordinary skill in the art will appreciate that: all or part of step that realizes said method embodiment can be accomplished through the relevant hardware of programmed instruction; Aforesaid program can be stored in the computer read/write memory medium; This program the step that comprises said method embodiment when carrying out; And aforesaid storage medium comprises: various media that can be program code stored such as ROM, RAM, magnetic disc or CD.
The above; Be merely embodiment of the present invention, but protection scope of the present invention is not limited thereto, any technician who is familiar with the present technique field is in the technical scope that the present invention discloses; The variation that can expect easily or replacement all should be encompassed within protection scope of the present invention.Therefore, protection scope of the present invention should be as the criterion with the protection domain of said claim.
Claims (6)
1. the method that the information trigger position is chosen is characterized in that, comprising:
Choose and estimate the information trigger position;
Represent the information of estimating between the position to trigger distance, estimate the historical time record value that information triggers distance according to said information trigger position and the figure estimated, obtain the said information trigger position is represented the position to said figure the reference velocity of estimating through said;
According to said reference velocity and reference time of pre-seting, calculate to such an extent that actual information triggers distance, and definite actual information trigger position.
2. method according to claim 1 is characterized in that, said choosing estimated the information trigger position, also comprises:
According to the selection rule that pre-sets, choose and estimate the information trigger position.
3. method according to claim 1 is characterized in that, said historical time record value comprises the arithmetic mean of at least twice historical time record.
4. method according to claim 1 is characterized in that, the said reference time comprises: be issued to server from terminal request and return call duration time and the user of the graphical real-time traffic information time sum that reads, makes a strategic decision and take action and consume to information.
5. the device that the information trigger position is chosen is characterized in that, comprising:
The information trigger position of estimating is chosen the unit, is used to choose estimate the information trigger position;
The reference velocity acquiring unit; Be used for representing the information of estimating between the position to trigger distance, estimate the historical time record value that information triggers distance, obtain the said information trigger position is represented the position to said figure the reference velocity of estimating through said according to said information trigger position and the figure estimated;
The actual information trigger position is chosen the unit, is used for according to said reference velocity and reference time of pre-seting, calculates to such an extent that actual information triggers distance, and definite actual information trigger position.
6. device according to claim 5 is characterized in that, the said information trigger position of estimating is chosen the unit, also is used for choosing and estimating the information trigger position according to the selection rule that pre-sets.
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110308758 CN102364550B (en) | 2011-10-12 | 2011-10-12 | Method and device for selecting information trigger position |
| PCT/CN2011/081944 WO2013053161A1 (en) | 2011-10-12 | 2011-11-08 | Method and device for selecting information trigger position |
| SG2013086020A SG195075A1 (en) | 2011-10-12 | 2011-11-08 | Method and device for selecting information trigger position |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110308758 CN102364550B (en) | 2011-10-12 | 2011-10-12 | Method and device for selecting information trigger position |
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| CN102364550A true CN102364550A (en) | 2012-02-29 |
| CN102364550B CN102364550B (en) | 2013-09-18 |
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| CN 201110308758 Active CN102364550B (en) | 2011-10-12 | 2011-10-12 | Method and device for selecting information trigger position |
Country Status (3)
| Country | Link |
|---|---|
| CN (1) | CN102364550B (en) |
| SG (1) | SG195075A1 (en) |
| WO (1) | WO2013053161A1 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103777220A (en) * | 2014-01-17 | 2014-05-07 | 西安交通大学 | Real-time and accurate pose estimation method based on fiber-optic gyroscope, speed sensor and GPS |
| CN105510939A (en) * | 2015-12-09 | 2016-04-20 | 小米科技有限责任公司 | Method and device for obtaining motion path |
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- 2011-10-12 CN CN 201110308758 patent/CN102364550B/en active Active
- 2011-11-08 SG SG2013086020A patent/SG195075A1/en unknown
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| CN105510939B (en) * | 2015-12-09 | 2018-11-23 | 小米科技有限责任公司 | Obtain the method and device of motion path |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2013053161A1 (en) | 2013-04-18 |
| CN102364550B (en) | 2013-09-18 |
| SG195075A1 (en) | 2013-12-30 |
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