CN102364550B - Method and device for selecting information trigger position - Google Patents
Method and device for selecting information trigger position Download PDFInfo
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- CN102364550B CN102364550B CN 201110308758 CN201110308758A CN102364550B CN 102364550 B CN102364550 B CN 102364550B CN 201110308758 CN201110308758 CN 201110308758 CN 201110308758 A CN201110308758 A CN 201110308758A CN 102364550 B CN102364550 B CN 102364550B
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- 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 ITS 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, increasing user brings into use various terminals, obtains real-time figure transport information such as navigating instrument terminal (GPS, Global Positioning System), mobile phone terminal etc.Take the navigating instrument terminal as example, on the navigating instrument terminal, can show map, and the present position of vehicle, road speed, the route prompting, the crossing such as turns at the running information.When Vehicle Driving Cycle arrives information trigger position, the navigating instrument terminal can be sent request from the trend server, and the figure at display line front side difference crossing represents the graphical real-time traffic information of position after the information that reception server returns, 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 prior art, and there are the following problems at least: in the prior art, if it is excessively far away that information trigger position represents the position apart from figure, terminal is too early display graphics Real-time Traffic Information, and user's driving is impacted; If it is excessively near that information trigger position represents the position apart from figure, the display graphics Real-time Traffic Information that terminal will be excessively slow causes the user not have enough time to make a policy.In above two kinds of situations, terminal can not provide high-quality graphical real-time traffic information Presentation Function, the user is experienced 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 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 information trigger position;
Represent the information of estimating between the position and trigger distance, estimate the historical time record value that information triggers distance by described according to described information trigger position and the figure estimated, obtain described information trigger position represents the position to described figure the reference velocity of estimating;
According to described reference velocity and reference time of pre-seting, calculate and to get actual information and trigger distance, and definite actual information trigger position.
The device that a kind of information trigger position is chosen comprises:
Estimate information trigger position and choose the unit, be used for choosing estimating information trigger position;
The reference velocity acquiring unit, be used for according to described estimate information trigger position and figure represent the information of estimating between the position trigger distance, by the described historical time record value of estimating information triggering distance, obtain the described information trigger position of estimating and arrive the reference velocity that described figure represents the position;
The actual information trigger position is chosen the unit, is used for according to described reference velocity and reference time of pre-seting, calculate to get actual information and trigger 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 by the information of estimating that arranged crosses and describedly estimates historical time record value that information triggers distance and obtain vehicle and estimate information trigger position represents the position to described figure reference velocity from described, 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 terminal at suitable time showing graphical real-time traffic information, improve the quality that the terminal graphical real-time traffic information shows.
Description of drawings
In order to be illustrated more clearly in the embodiment of the invention or technical scheme of the prior art, the below will do to introduce simply to the accompanying drawing of required use in embodiment or the description of the Prior Art, apparently, accompanying drawing in the following describes only is some embodiments of the present invention, for those of ordinary skills, under the prerequisite of not paying creative work, can also obtain according to these accompanying drawings other accompanying drawing.
The schematic flow sheet of the method that Fig. 1 chooses for a kind of information trigger position that embodiment one provides;
The schematic flow sheet of the method that Fig. 2 chooses for a kind of information trigger position that embodiment two provides;
The structural representation of the device that Fig. 3 chooses for a kind of information trigger position that embodiment three provides;
Concrete real road schematic diagram in the method that Fig. 4 chooses for a kind of information trigger position that embodiment two provides.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the invention, the technical scheme in the embodiment of the invention is clearly and completely described, 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 belong to the scope of protection of the invention not making the every other embodiment that obtains under the creative work prerequisite.
Embodiment 1:
The method that the embodiment of the invention provides a kind of information trigger position to choose, as shown in Figure 1, the method may further comprise the steps:
101, choose and estimate information trigger position.
102, represent the information of estimating between the position and trigger distance, estimate the historical time record value that information triggers distance by described according to described information trigger position and the figure estimated, obtain described information trigger position represents the position to described figure the reference velocity of estimating.
The described information trigger position of estimating represents the position with respect to figure and describes, and it is first difference crossing that graphical real-time traffic information is described that described figure represents the position.Described figure represents the position and the distance estimated between the information trigger position triggers distance for estimating information.Estimate information trigger position and can represent the position and the information of estimating that set triggers distance and chooses by fixed figure.
Described historical time record value can based on the historical traffic information data acquisition, trigger 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 described reference velocity and reference time of pre-seting, calculate and to get actual information and trigger distance, and definite actual information trigger position.
The actual information trigger position is that terminal begins to server request 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 describedly estimate historical time record value that information triggers distance and obtain vehicle and estimate information trigger position represents the position to described figure reference velocity from described by trigger distance with the information of estimating that arranged, 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 terminal at suitable time showing graphical real-time traffic information, improve the quality that the terminal graphical real-time traffic information shows.
Embodiment 2:
The method that the embodiment of the invention provides a kind of information trigger position to choose, as shown in Figure 2, the method may further comprise the steps:
201, according to the selection rule that pre-sets, choose and estimate information trigger position.
202, represent the information of estimating between the position and trigger distance, estimate the historical time record value that information triggers distance by described according to described information trigger position and the figure estimated, obtain described information trigger position represents the position to described figure the reference velocity of estimating.
The described information trigger position of estimating represents the position with respect to figure and describes, and it is first difference crossing that graphical real-time traffic information is described that described figure represents the position.Described figure represents 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 arranges triggers distance.The information of estimating triggers distance and can arrange according to the selection rule of presetting the different distance value for different roads.Estimating information trigger position then triggers apart from choosing according to the information of estimating that has arranged.
Wherein said historical time record value comprises the arithmetic mean of at least twice historical time record.
The historical time record value can be based on the historical traffic information data acquisition, 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 like this historical time record value more accurate, can not make the historical time record value that obtains have too large contingency because of reasons such as accident or traffic congestions, thereby make choosing of actual information trigger position more reasonable.
203, according to described reference velocity and reference time of pre-seting, calculate and to get actual information and trigger distance, and definite actual information trigger position.
Wherein, the described reference time comprises: be issued to server from terminal request and return the call duration time of graphical real-time traffic information and user to the time sum that reads, makes a strategic decision and take action and consume of 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 of terminal, can call duration time be set according to different terminal systems; 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.
The below will use the choosing method of above-mentioned actual information trigger position to illustrate:
At first, estimate information trigger position according to the information of the estimating triggering of super expressway and through street 1000m, Ordinary Rd 800m apart from choosing.Described information trigger position to the figure of estimating represents 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 affect the nearest week that the special event (as having a holiday or vacation National Day) of traffic occurs, 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 therefore 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 such as 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
Therefore historical time record value
Reference velocity
Can be set to 5 seconds by communication time at this, the user is 5 seconds to the set of time that reads of graphical real-time traffic information, and the decision-making time is set to 5 seconds, and the action set of time is 10 seconds; Therefore the reference time Tc that pre-sets is 25 seconds.
Trigger distance L=V*Tc therefore can obtain actual information
Triggering distance and fixed corresponding figure according to the actual information that obtains represents the position and just can choose the actual information trigger position.
When user's steering vehicle travels on the way, terminal will be determined current location and the travel direction of vehicle.When vehicle arrives the actual information trigger position, 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 represented the position, terminal will send graphical real-time traffic information to server request; If the travel direction of vehicle is not to point to actual information trigger position graph of a correspondence to represent the position, terminal just can not send request to server.If server is received request, server will send this actual information trigger position graph of a correspondence Real-time Traffic Information to terminal; Then, 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.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 arranged crosses divided by vehicle and describedly estimates historical time record value that information triggers distance and obtain vehicle and estimate information trigger position represents the position to described figure reference velocity from described, 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 terminal at suitable time showing graphical real-time traffic information, improve the quality of terminal graphical real-time traffic information Presentation Function.Estimate information by 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, described device comprises: estimate information trigger position and choose unit 31, reference velocity acquiring unit 32, actual information trigger position and choose unit 33.
Estimating information trigger position chooses unit 31 and is used for choosing estimating information trigger position.
Reference velocity acquiring unit 32 be used for according to described estimate information trigger position and figure represent the information of estimating between the position trigger distance, by the described historical time record value of estimating information triggering distance, obtain the described information trigger position of estimating and arrive the reference velocity that described figure represents the position.
The described information trigger position of estimating represents the position with respect to figure and describes, and it is first difference crossing that graphical real-time traffic information is described that described figure represents the position.Described figure represents the position and the distance estimated between the information trigger position triggers distance for estimating information.Estimate information trigger position and can represent the position and the information of estimating that set triggers distance and chooses by fixed figure.
Above-mentioned historical time record value can be based on the historical traffic information data acquisition, 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 like this historical time record value more accurate, can not make the historical time record value that obtains have too large contingency because of reasons such as accident or traffic congestions, thereby make choosing of actual information trigger position more reasonable.
The actual information trigger position is chosen unit 33 and is used for according to described reference velocity and reference time of pre-seting, calculates to get actual information and trigger distance, and definite actual information trigger position.
The above-mentioned reference time comprises: be issued to server from terminal request and return the call duration time of graphical real-time traffic information and user to the time sum that reads, makes a strategic decision and take action and consume of 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 of terminal, can call duration time be set according to different terminal systems; 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 described information trigger position of estimating is chosen unit 31 also for according to the selection rule that pre-sets, and chooses and estimates information trigger position.
The above-mentioned information trigger position of estimating represents the position with respect to figure and describes, and it is first difference crossing that graphical real-time traffic information is described that described figure represents the position.Described figure represents 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 arranges triggers distance.The information of estimating triggers distance and can arrange according to the selection rule of presetting the different distance value for different roads.Estimating information trigger position then triggers apart from choosing according to the information of estimating that has arranged.
Estimating information trigger position chooses unit 31, reference velocity acquiring unit 32, actual information trigger position and chooses 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 arranged crosses divided by vehicle and describedly estimates historical time record value that information triggers distance and obtain vehicle and estimate information trigger position represents the position to described figure reference velocity from described, 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 terminal at suitable time showing graphical real-time traffic information, improve the quality of terminal graphical real-time traffic information Presentation Function.Estimate information by 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 finished by the relevant hardware of programmed instruction, aforesaid program can be stored in the computer read/write memory medium, this program is carried out the step that comprises said method embodiment when carrying out; And aforesaid storage medium comprises: the various media that can be program code stored such as ROM, RAM, magnetic disc or CD.
The above; be the specific embodiment of the present invention only, but protection scope of the present invention is not limited to this, anyly is familiar with those skilled in the art 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 described claim.
Claims (6)
1. the method that information trigger position is chosen is characterized in that, comprising:
Choose and estimate information trigger position;
Represent the information of estimating between the position and trigger distance, estimate the historical time record value that information triggers distance by described according to described information trigger position and the figure estimated, obtain described information trigger position represents the position to described figure the reference velocity of estimating; It is first difference crossing that graphical real-time traffic information is described that described figure represents the position;
According to described reference velocity and reference time of pre-seting, calculate and to get actual information and trigger distance, and definite actual information trigger position.
2. method according to claim 1 is characterized in that, described choosing estimated information trigger position, also comprises:
According to the selection rule that pre-sets, to choose and estimate information trigger position, the described selection rule that pre-sets comprises for different roads and the default different information of estimating triggering distances.
3. method according to claim 1 is characterized in that, described 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 described reference time comprises: be issued to server from terminal request and return the call duration time of graphical real-time traffic information and user to the time sum that reads, makes a strategic decision and take action and consume of information.
5. the device that information trigger position is chosen is characterized in that, comprising:
Estimate information trigger position and choose the unit, be used for choosing estimating information trigger position;
The reference velocity acquiring unit, be used for according to described estimate information trigger position and figure represent the information of estimating between the position trigger distance, by the described historical time record value of estimating information triggering distance, obtain the described information trigger position of estimating and arrive the reference velocity that described figure represents the position; It is first difference crossing that graphical real-time traffic information is described that described figure represents the position;
The actual information trigger position is chosen the unit, is used for according to described reference velocity and reference time of pre-seting, calculate to get actual information and trigger distance, and definite actual information trigger position.
6. device according to claim 5, it is characterized in that, the described information trigger position of estimating is chosen the unit, also be used for according to the selection rule that pre-sets, choose and estimate information trigger position, the described selection rule that pre-sets comprises for different roads and the default different information of estimating triggering distances.
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 |
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| 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 CN102364550A (en) | 2012-02-29 |
| CN102364550B true 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 |
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| CN (1) | CN102364550B (en) |
| SG (1) | SG195075A1 (en) |
| WO (1) | WO2013053161A1 (en) |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103777220B (en) * | 2014-01-17 | 2016-04-27 | 西安交通大学 | Based on the accurate position and orientation estimation method in real time of optical fibre gyro, speed pickup and GPS |
| 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 |
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- 2011-10-12 CN CN 201110308758 patent/CN102364550B/en active Active
- 2011-11-08 SG SG2013086020A patent/SG195075A1/en unknown
- 2011-11-08 WO PCT/CN2011/081944 patent/WO2013053161A1/en active Application Filing
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Also Published As
| Publication number | Publication date |
|---|---|
| WO2013053161A1 (en) | 2013-04-18 |
| CN102364550A (en) | 2012-02-29 |
| SG195075A1 (en) | 2013-12-30 |
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