CN103137042A - Guide information trigger method based on scenery-viewing area in global positioning system (GPS) intelligent guide system - Google Patents
Guide information trigger method based on scenery-viewing area in global positioning system (GPS) intelligent guide system Download PDFInfo
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Abstract
A guide information trigger method based on a scenery-viewing area in a global positioning system (GPS) intelligent guide system mainly comprises the steps of collecting scenery-viewing area related data and triggering guide information broadcast by GPS locating information processing. The triggering step comprises obtaining user real-time location information through a GPS; extracting location attributes of a to-be-reached area in a scenery-viewing area database; judging a user location and attribute data of a to-be-reached scenery-viewing area meet the conditions; judging whether scenery-viewing area guide information corresponding to the scenery-viewing area meets trigger conditions; and broadcasting the guide information according to broadcasting rules. The scenery-viewing area is rectangular, is easy to distribute and is reasonably arranged, and data collection quantity and workload are small. A judging method based on the to-be-reached scenery-viewing area is efficient and easy to use. The provided guide information can meet users' scenery-viewing requirements, missing of the guide information caused by system judgment is avoided, and safety prompt information also helps users to improve safety awareness and obtain good visiting experience.
Description
Technical field
The present invention relates to a kind of guide system and method, relate in particular in a kind of GPS intelligent guide system the tour guide information triggering method based on the view zone.
Background technology
In recent years, along with scientific-technical progress, people's tourism idea is also in continuous variation, and traditional artificial tourist guide mode can not satisfy traveller's diversified demand.After having experienced the technology of carrying out the guide of autoelectrinic in certain scenic by locator meamss such as radio, infrared ray, radio frequencies and using, developed the intelligent guide system that relies on the modes such as gps satellite location, GPRS location, CDMA location now.Built-in chip is adopted in the gps satellite location, and volume is little, is easy to carry, and orientation range is extensive, the high locator meams that becomes a lot of intelligent guide systems of bearing accuracy.
As the GPS intelligent guide system, the GPS locating module is responsible for providing positional information, whether the position information process module is in the tour guide information toggle area according to existing position, if in this zone, the tour guide information of exporting this zone correspondence by the tour guide information storehouse is play.
The patent of invention (application number is 200610112371.X) " mobile multimedia intelligent guide service system and its implementation " of announcing in 2007 triggers tour guide information by judging whether the real time position signal is in the toggle area grid of having drawn.The drafting of toggle area need be considered different shapes, and data volume is very large, is unfavorable for gathering and storage.Simultaneously, the toggle area of very high scenery on the spot than the much bigger processing of area of scenery on the spot, is easily covered the toggle area of the highly low scenery of periphery, increased again the complicacy that data are processed, be unfavorable for that tour guide information triggers the execution of algorithm.
The patent of invention (application number is 200910033700.X) of announcing in 2009 the sight spot triggering method of commentary point " in a kind of GPS intelligent guide system based on " triggers by judge whether the real time position signal is in commentary point triggering radius.When satisfying simultaneously commentary point 1 and commentary point 2 for the present position, needs carry out commentary point and select, can fail to trigger this moment due to unselected commentary point information, make the user can not get due tour guide information, this situation is in the situation that the high probability that occurs of commentary point closeness can be higher, and loss of learning is more obvious.In addition, the sight spot see that easily degree is higher, there is the commentary point coverage condition to peripheral sight spot in the larger embodiment of triggering radius of corresponding commentary point, also easily causes the disappearance of explainative information, or causes the raising of computational complexity.
In the GPS intelligent guide system, there is following weak point in the triggering method of existing tour guide information:
1, the large minor radius of tour guide information toggle area that is in a high position or easily sees the sight spot that degree is high is artificially enlarged when the data acquisition, increased the probability overlapping with other sight spot toggle area on every side, can cause after correcting by selection algorithm part effectively tour guide information can not pass to the user.
2, for some sight spot draw near near process in, when distant view is viewed and admired the processing of tour guide information and in the present position, sight spot the processing to tour guide information not bery clear and definite, in this and actual visit process, visitor's demand is not mated, easily cause the visitor not obtain necessary tour guide information in the process of part sight spot distant view appreciation, hearing about how appreciating the explanation of distant view and arrived the sight spot, having lost the best and having viewed and admired opportunity.
3, due to the explanation that stresses for the sight spot, and the problem of toggle area setting, the safety prompt function information that causes existing in the guide of scenic spot can not be transmitted effectively, if being in physical features strategically located and difficult of access area in user's visit process can't predict, necessary safety prompt function can't be provided, may have potential safety hazard.
4, the trigger condition of toggle area judgement need to have the position now and all do not trigger the matching judgment computing of tour guide information trigger point, this is in the situation that the trigger point is too much, easily cause some is still joined in the matching judgment computing every most of trigger point of a lot of trigger points from existing trigger point, caused computational load too high, affect the judgement time, system effectiveness is on the low side.
Summary of the invention
The present invention is take the deficiency that solves existing GPS intelligent guide system as purpose.The one, be in the view zone as the trigger condition of tour guide information take the user, provide tour guide information according to finding view in the rectangular area of viewing and admiring certain or a plurality of sight spots in the itinerary, scenic spot, the finding view can be one, can be also a plurality of.Can a plurality of views zone and corresponding different angles tour guide information be set according to the different characteristics of viewing and admiring that draw near in the itinerary for same sight spot, avoided producing because the degree difference is easily seen at the sight spot trigger point overlapping, cause loss of learning, form the corresponding unique tour guide information of positional information in view zone.The 2nd, with the toggle area of rectangle as tour guide information, high to different scenic spots different terrain landforms universality, zone location is accurate, and the data collection task amount is little, intensive tour guide information trigger network be can form, intensive place tour guide information triggering blind area and overlay region at the sight spot reduced.The three tour guide information triggering method that are based on the view zone can on the basis that real-time monitors user place view regional location, judge by the viewing area regional data base whether this zone needs safety prompt function, and being convenient to provides the security information reminding service to the user.The 4th, only the computing judgement is carried out in current location and its pre-view zone of arriving in trigger condition judgement, other views zones does not participate in computing and judges, has greatly reduced the taking of system resource, and has improved system effectiveness.
Based on above what time proposed a kind of tour guide information comprehensively, the algorithm complexity is low, operability is high, Trigger Efficiency is high, existing resource is utilized in the high GPS intelligent guide system of degree tour guide information triggering method based on the view zone.
The present invention realizes by following scheme, based on the tour guide information triggering method in view zone, comprises GPS locating information module, viewing area domain information database, tour guide information broadcasting system, message processing module in the GPS intelligent guide system.
Described GPS locating information module is obtained the current positional information of user by the GPS chip, and sends message processing module to;
Described view zone refers to that the user can obtain the rectangular area that sight spot the best is viewed and admired distant view or middle scape or the close shot of experience in the touring line of scenic spot.The determining of view zone, check in conjunction with the scenic spot touring line on the spot by the analysis to the scenic spot tourist map, determines the south point coordinate S(x of rectangle
s, y
s), making that the S point left side is the B limit, length is b, and S point the right be the A limit, and length is a, and angle, north by west, B limit is α, and the integer order press in the view zone number one by one from " 1 " beginning, each view zone has and the regional different unique number of other views of this scenic spot;
Described viewing area domain information database has comprised the regional position attribution subdata base of view, view zone tour guide information subdata base and scenic spot tourist map data.View zone position attribution subdata base is that the regional position attribution of each view is corresponding one by one with this viewing area Field Number with the data acquisition of the regional position attribution of all views as centralized management.View zone tour guide information subdata base is with the data acquisition of the regional tour guide information of all views as centralized management.The view zone tour guide information employing internal links that the view zone is corresponding with it;
The position attribution in described view zone has comprised the south point coordinate S(x in this view zone
s, y
s), length of side a, b, drift angle α, the through viewing area Field Number set of periphery and whether triggered attribute (init state is "No");
The through view of described view area peripheral edge zone refers in the touring line design, and a certain view area peripheral edge does not need to pass just accessibility view zone, other views zones by touring line;
The through viewing area Field Number set of described view area peripheral edge refers to a certain view area peripheral edge through viewing area Field Number is showed with the mode of gathering, as one of the position attribution in this view zone;
Described view zone tour guide information refers to the character introduction text that comprises the visible view in this view zone that corresponding a certain view zone is made in advance and recording, the visible landscape map picture in this view zone, view zone safety instruction information (optional), whether has reported attribute (init state is "No");
Described tour guide information broadcasting system refers to export the contents such as text, recording, landscape map picture or safety instruction information in the tour guide information of corresponding view zone when the view zone is triggered;
Described message processing module is responsible for the computing of input/output information and is responsible for transmitting computing information in above-mentioned database, module and system, and starts next step operation.
Triggering step based on the tour guide information triggering method in view zone in intelligent guide system is:
(1) initialization and prepare domain information database in viewing area in this scenic spot;
(2) obtain user's real-time position information P(x by GPS
p, y
p);
(3) extract the regional position attribution of pre-arrival view from the domain information database of viewing area;
(4) judge customer location whether in a certain pre-arrival view zone, namely whether current coordinate is with respect to satisfying between the position attribution data of pre-arrival view zone
x
s＜y
p* sin α+x
p* cos α＜x
s+ a and
y
s?<?y
p?*?cosα?-?x
p?*?sinα?<?y
s?+?b
If "Yes" continues next step,
If "No" illustrates that user's current location is not in the view zone, returns to step (2);
(5) judge whether this view zone is the view end region, if this view zone does not belong to the view end region, continue next step, if belong to the view end region by judging whether the view end region can trigger, if "Yes" explanation user has arrived the scenic spot outlet, forward step (10) to, if "No" is returned to step (2);
(6) whether to have triggered attribute be "Yes" in this view of mark zone, returns and trigger view number of regions value "+1 ", returns and trigger the viewing area Field Number;
(7) judge whether corresponding view zone, view of living in zone tour guide information is reported, and "No" continues next step, and "Yes" is returned to step (2);
(8) report the regional tour guide information of corresponding view, whether the regional tour guide information of mark view has reported attribute is "Yes";
(9) judge whether the regional tour guide information of all views has been reported attribute and whether all be labeled as "Yes", if "Yes" continues next step, if "No" is returned to step (2);
(10) report ending message, this scenic spot guide finishes;
Repeating step 2 to step 9, forwards step 10 to and finishes this scenic spot guide service when meeting termination condition in step 5 and step 9 occurring in whole visit process.
The technical problem to be solved in the present invention can also be come further to realize by the following technical programs:
Described pre-arrival view zone refers to that the user passes through the next view zone that touring line may directly arrive, and has not arrived the view zone of triggering but do not comprise.Different from view area peripheral edge through viewing area Domain Properties is, the through viewing area of view area peripheral edge Domain Properties is quiescent value, in case touring line is definite, the through viewing area of the regional corresponding periphery of a certain view Domain Properties just can be numbered set expression out by one.And arrive in advance the view zone along with user's movement, will change after having triggered different views zones, the algorithmic rule in pre-arrival view zone can be divided into two kinds of situations: 1. when triggering the view number of regions for " 1 ", arrive in advance view regional for having triggered the through viewing area Field Number set of periphery in view zone; 2. when triggering the view number of regions when " 1 ", arrive in advance the view zone for the union that triggered the viewing area Field Number with respect to the supplementary set of the union that triggers view area peripheral edge through viewing area Field Number for complete or collected works.
Set-up function view zone two classes in the data acquisition in view zone: be respectively view and begin zone and view end region.view begins region division after the porch, scenic spot enters the ticketing spot, scenic spot, there are what entrances what views just are set and begin the zone, all views begin the zone independently view zone position attribution, share the regional tour guide information of view, as extracting for the first time the pre-first-selection that arrives the regional position attribution of view in step 3, if do not satisfy the condition of "Yes" in step 4, return and extract all views zone, this scenic spot position attribution when step 2 enters step 3 again and carry out step 4 judgement, the attribute of whether having reported that view begins regional tour guide information is labeled as "Yes" after territory, arbitrary viewing area tour guide information is reported.The view end region is set in the exit, scenic spot and has gone out the position, scenic spot, there are what outlets what view end region just are set, all view end region have independently view zone position attribution, share view zone tour guide information, the trigger condition of view end region is to have at least other a views zone except the view end region to be triggered.
In the touring line design, when the user never arrives in way, a certain sight spot with the path, exist a plurality of views regional, and when its tour guide information of the view of enjoying is identical, the view zone of diverse location attribute is set respectively, but these view district-share tour guide informations, this helps the user from different directions near same sight spot, and the sight spot of enjoying on different directions or view provide tour guide information when similar.
In the domain information database of viewing area, the view zone is by the regional tour guide information of the corresponding unique view of internal links, and tour guide information can share to a plurality of views zones by internal links, but as long as reported this view zone tour guide information by the arbitrary view zone that has linked, the attribute of whether having reported in the tour guide information of this view zone is "Yes" always before this scenic spot guide finishes.
The present invention mainly comprises view zone relevant data acquisition and processes the triggering tour guide information by the GPS locating information and report two stages in specific implementation process.
The present invention compared with prior art has following outstanding technique effect and advantage:
1, on the relevant data acquisition in view zone: the position attribution to the view zone adopts the mode of rectangle to gather, and 4 data just can comprise the regional position attribution of a view.The rectangular area is higher to the actual state adaptability at geographical conditions and sight spot, easily forms the view Local Area Network of highly dense intensity, reduces the existence of unnecessary guide blind area.Each tour guide information corresponding to view zone has uniqueness, when appreciating certain sight spot, diverse location and angle set up simultaneously different view zones, the view regional location is not overlapping, tour guide information gathers according to the actual conditions of diverse location and angle, can allow the user more fully enjoy landscape, can not lack tour guide information again.
2, on the triggering operation efficiency of the regional tour guide information of view: carrying out in the computing of view area triggering for the first time, preferential extraction view begins zone position information and judges, after first view zone tour guide information triggering is completed, each judgement later on is only limited to the pre-arrival view zone of triggering the view zone, even the user does not begin area triggering at view, so after triggering for the first time need to be carried out all viewing area location information domains judgement computings, later on each judgement also is only limited to the pre-arrival view zone of having triggered the view zone, the operational data amount is little in this case, complicacy is low, system effectiveness is high.
3, in the output of the regional tour guide information of view: due to the not plyability of view zone position attribution data acquisition, adopted the uniqueness of the regional tour guide information of view of the regional correspondence of each view, what therefore the user was corresponding in some positions is this unique tour guide information in view zone, can not produce same position two explaining information are arranged, need to judge again and play, cause artificial loss of learning.The view zone can provide the output of safety instruction information in case triggering has namely represented the user in this zone for some specific region, help like this user to improve awareness of safety, obtains better visit and experiences.
Description of drawings
Fig. 1 is the schematic diagram that concerns at view of the present invention zone and sight spot.
Fig. 2 is single view zone position attribution data acquisition schematic diagram of the present invention.
Fig. 3 is based on the tour guide information triggering method process flow diagram in view zone in GPS intelligent guide system of the present invention.
Fig. 4 is pre-arrival view zone algorithm schematic diagram of the present invention.
Fig. 5 is whether customer location of the present invention judges schematic diagram in the view zone.
Embodiment
Below in conjunction with specific embodiment, the present invention is described in further detail:
Based on the tour guide information triggering method in view zone, comprise GPS locating information module, viewing area domain information database, tour guide information broadcasting system, message processing module in the GPS intelligent guide system.The present invention mainly comprises view zone relevant data acquisition and processes the triggering tour guide information by the GPS locating information and report two stages in specific implementation process.
The collection of the regional position attribution data of view and the collection of the regional tour guide information data of view have been comprised in viewing area numeric field data acquisition phase.
Described view zone refers to that the user can obtain the rectangular area that sight spot the best is viewed and admired distant view or middle scape or the close shot of experience in the touring line of scenic spot.Determining of view zone can be in advance by the analysis to the scenic spot tourist map, and in conjunction with the scenic spot touring line, according to the view demand, default view is regional, is numbered, and then confirms by checking on the spot.
The relation at view zone and sight spot as shown in Figure 1.According to the scenic spot actual conditions, in view when zone, be set with set-up function view zone two classes: be respectively view and begin zone and view end region, view begins region division after the porch, scenic spot enters the ticketing spot, scenic spot, there are what entrances what views just are set and begin the zone, all views begin the zone independently view zone position attribution, shares the regional tour guide information of view.The view end region is set in the exit, scenic spot and has gone out the position, scenic spot, there are what outlets what view end region just are set, all view end region have independently view zone position attribution, share view zone tour guide information, the trigger condition of view end region is to have at least other a views zone except the view end region to be triggered.Being preset in touring line of view zone, can obtaining sight spot the best according to the user, to view and admire the distant view of experience or middle scape or close shot be principle.For example when the user is in view zone 5, this view district inclusion sight spot 1, again the distant view Viewing Area at sight spot 2 and sight spot 3 simultaneously, the view zone of closer distance when view zone 6 and 8 has represented from different directions near sight spot 3, view zone 9 has represented 3 utmost point access areas or the inside at the sight spot, this processing mode can make the user never same distance can enjoy best view.The default size in view zone can be adjusted, but must be rectangular shape, and this point advantage when view gallery, view main road is set to the view zone is larger, and the best view zone at most sight spot can represent with rectangle simultaneously.The final of view zone determined to carry out on-the-spot investigation, confirms on the spot whether the view zone can realize that the user obtains distant view or middle scape or close shot that sight spot the best is viewed and admired experience, finally determines numbering and the view zone position attribution related data in view zone.
The position attribution in described view zone has comprised the south point coordinate S(x in this view zone
s, y
s), length of side a, b, drift angle α, the through viewing area Field Number set of view area peripheral edge and whether triggered attribute.View single according to collection shown in Figure 2 zone position attribution data S(x
s, y
s), a, b, α.When gathering these data, at first determine the south point S of rectangle, coordinate acquisition data S(x on the spot according to default view regional location
s, y
s), making then that the S point left side is the B limit, length is b, and S point the right is the A limit, and length is a, and angle, north by west, B limit is α, as shown in Fig. 2 (a).At this moment a kind of special circumstances can appear, as shown in Fig. 2 (b), the rectangular area just certain on one side on the direct north coordinate axis of geographic coordinate, stipulate this moment this rectangle southernmost left summit be the S point, longitudinal edge is the B limit, horizontal edge is the A limit.By checking the capable of regulating rectangle length of side, drift angle on the spot, can be in when the visit in best view zone to guarantee the user, but the requirement of the sequencing of collection position attribute data and data volume must not change first coordinate acquisition data S(x
s, y
s), rear collection a, the b length of side and α angle, the collection position attribute data is guaranteeing to be not limited to use which kind of concrete instrument in accurate situation.The view zone position attribution data S(x that collects
s, y
s), a, b, α be corresponding one by one with the viewing area Field Number, all has uniqueness.
The through view of described view area peripheral edge zone refers in the touring line design, and a certain view area peripheral edge does not need to pass just accessibility view zone, other views zones by touring line.The through viewing area Field Number set of described view area peripheral edge refers to a certain view area peripheral edge through viewing area Field Number is showed with the mode of gathering, as one of the position attribution in this view zone; Position in all views zones finally determines, touring line determine errorless after, can gather through this position attribution of viewing area Field Number set of view area peripheral edge.As shown in Figure 1, view begins zone 1 not to be needed to pass other views zones by touring line in the scenic spot and can arrive view end region 3 and view zone 5, to begin the through viewing area Field Number set of zone 1 periphery be { 3 to view so, 5}, other corresponding these position attributions in view zone in like manner can get.In the regional position attribution of the view that collects, the through viewing area of view area peripheral edge Field Number collective data is corresponding one by one with the viewing area Field Number, all has uniqueness.In addition, whether triggered attribute in the regional position attribution of view, init state is "No".Whether triggered attribute in view end region position attribution and set a trigger condition variable, namely after having arbitrary non-view end region to be triggered in the scenic spot, the view end region can be triggered.
Described view zone tour guide information refers to the character introduction text that comprises the visible view in this view zone that corresponding a certain view zone is made in advance and recording, the visible landscape map picture in this view zone, whether view zone safety instruction information (optional) has reported attribute (init state is "No").All views zones is final determine after, at first according to the situation that whether exists the tour guide information needs to share in all views zones, need to determine the quantity of the tour guide information of actual acquisition.The estimate of situation whether view zone tour guide information needs to share is divided into following three kinds: the first situation is to have a plurality of porch in the scenic spot, is provided with a plurality of views and begins the zone, and this moment, a plurality of views began the regional tour guide information that only needs to gather; The second situation is to have a plurality of exits in the scenic spot, is provided with a plurality of view end region, and this moment, a plurality of view end region only need to gather a tour guide information; The third situation be when for a certain sight spot when never arriving with the path, when existing the view of seeing substantially similar in the view zone that arrives in two that set different paths, as shown in Figure 1, view zone 6 and view regional 8 are for appreciating sight spot 3 architectural appearances, if the building at sight spot 3 is symmetric designs, thereby this architectural appearance in view zone 6 and the view zone saw in 8 o'clock substantially similar, view zone 6 and view zone 8 also only need to gather a view zone tour guide information so.
Next gathers the regional tour guide information data of concrete view, according to each actual visible view photographic images in view zone, amount of images is determined according to actual view quantity, do not have uniqueness, according to this view zone finding landscape design tour guide speech, comprise the tour guide speech how many views how many views need to design simultaneously.In the design of tour guide speech, follow visible principle, if finding is distant view, stress the assurance of the overall situation; If the view zone is inner at view, the view details of giving prominence to the key points stresses local description; If view zone is moderate with actual view distance, can just appreciate clearly to the architectural style of view and configuration design etc., stress the description of architectural style and configuration design etc.Record after the tour guide speech design is complete, store as audio file.Also comprised in the middle of the tour guide information of view zone and whether reported attribute, this attribute is made as "No" in init state.View zone safety instruction information is stored in tour guide information as option, being intended to may dangerous property zone in the scenic spot as the water surface, high drop zone, special geology are regional, special biozone and other need to provide and point out or warning information in the situation close to very of visitor's high concentration notice zone for some views zone.If when stipulating that according to the scenic spot certain place, place, view zone needs the high concentration notice, can cancel this view region division for guaranteeing user security, and replenish the part tour guide information in this through view zone, view zone tour guide information.collection for viewing area tour guide information in the shared situation of aforesaid three kinds of viewing area tour guide informations also needs to do special processing: the first situation, view begins tour guide information Chinese word and the recording in zone and adopts greeting to add the form composition of scenic spot overview brief introduction, image can select to enter image or gate, the scenic spot image behind the ticketing spot, whether report attribute and do not made change, collect in text or recording as there being some visit points for attention to can be used as the safety instruction message part in the scenic spot, the attribute of whether having reported that view begins regional tour guide information is made as "Yes" after territory, arbitrary viewing area tour guide information is triggered.The second situation, the form that the tour guide information Chinese word of view end region and recording are adopted the scenic spot catch-phrase to add and given a thank you speech forms, and image can be selected scenic spot advertising map or the figure that thanks you, and whether has reported attribute and be "No" after initialization each time.The third situation when for a certain sight spot when never arriving with the path, and when existing the view of seeing substantially similar in the view zone that arrives in two that set different paths, should gather the image that view zone is never seen in the tour guide information of view zone, other attributes need not change.View zone tour guide information independent numbering is not taked to number one to one with the view zone, in the domain information database of viewing area, and the view zone tour guide information view zone employing internal links corresponding with it.
In a scenic spot all views zone position attributions and view zone tour guide information gather complete after, carry out store and management by viewing area domain information database.The database at a scenic spot is a subdata base in total data storehouse, comprised position attribution database, view zone tour guide information database and the scenic spot tourist map data in all views zone, this scenic spot.Need to add corresponding scenic spot numbering on this scenic spot composite catalog, the scenic spot numbering refers to the combination with location area code+scenic spot title initial taked according to location, scenic spot and scenic spot title, for example being numbered of scenic spot, Tian An-men, Beijing " 010tam ".About the processing of view zone position attribution with view zone tour guide information Relations Among: the numbering according to the view zone in data base administration is set up linking of the regional tour guide information of the view corresponding with it, follow the principle of a view zone corresponding view zone tour guide information link, and what views the regional tour guide information of view shares to regional according to having merged the zone collection of what views in the actual acquisition process.The user can obtain the tour guide information about self position in real time when reality is used like this, can not cause again repetition and the deficient phenomena of tour guide information.Scenic spot tourist map data have comprised the scenic spot tourist map of a vector quantization, and following the viewing area location information domain in processing procedure can be principle by accurate response on the tourist map of the scenic spot of vector quantization, restriction is not done in scenic spot tourist map source and pattern.
Adopted a kind of triggering algorithm based on the view zone in view Regional data operational phase, this algorithm comprises the contents such as algorithm flow, viewing area location information domain extracting rule, the regional triggering rule of view, view zone tour guide information report rule.As shown in Figure 3, triggering step is
(1) initialization and prepare domain information database in viewing area in this scenic spot;
The view of triggering number of regions after initialization in this scenic spot is returned " 0 ", and the attribute that whether triggered in all views zones is "No", and the attribute of whether having reported of all views zones tour guide information is "No", and the view end region is for triggering.
(2) obtain user's real-time position information P(x by GPS
p, y
p);
(3) extract the regional position attribution of pre-arrival view from the domain information database of viewing area.
Described pre-arrival view zone refers to that the user passes through the next view zone that touring line may arrive, and has not arrived the view zone of triggering but do not comprise.The pre-view zone of arriving is along with user's movement, can change after having triggered different views zones, adopts the set expression data.Algorithmic rule can be divided into two kinds of situations: the first situation when triggering the view number of regions for " 1 ", arrives view regional for having triggered the through viewing area Field Number set of periphery in view zone in advance.As shown in Fig. 4 (a), when the user had triggered view zone 1, this moment, user's pre-arrival view zone be view zone 2 and view zone 5, adopted and gather that { 2,5} represents, the viewing area Field Number set of going directly of this periphery with view zone 1 is consistent.The second situation, when triggering the view number of regions and being not 1, arrive in advance the view zone for the union that triggered the viewing area Field Number with respect to the union of the periphery through viewing area Field Number that triggers the view zone supplementary set for complete or collected works.As shown in Fig. 4 (b), from view zone 1 when arriving and triggering view zone 2, the union that has triggered the viewing area Field Number at this moment is { 1} ∪ { 2}={1 as the user, 2} has triggered the union of periphery through viewing area Field Number in view zone for { 2,5} ∪ { 1,3,4}={1,2,3,4,5,, { 1,2} is with respect to { 1,2,3,4,5, be that complete or collected works' supplementary set is { 3,4,5}, so the pre-arrival view zone of this moment is view zone 3, view zone 4, view zone 5 accesses the position attribution data in these three view zones and can supply next step judgement.The positional information of having avoided so each acquisition all will not trigger the situation that the view zone judges computing with all, has significantly promoted system effectiveness.
The pre-optimization that arrives the viewing area location information domain of first extraction: when extracting the data of the viewing area location information domain that arrives in advance for the first time, first-selected all views begin zone position information for judgement, this operation rule supposition user opens native system after entering the ticketing spot, this first-selected principle can be determined first toggle area very efficiently for this class user at once.If first-selected principle is false in step (4), extract the regional position attribution of all views when again returning to this step and judge, this and the regional algorithmic rule of the described pre-arrival view of this step be contradiction not.
(4) judge that customer location is whether in a certain pre-arrival view zone.Be whether current coordinate is with respect to satisfying between the regional position data of pre-arrival view
x
s＜y
p* sin α+x
p* cos α＜x
s+ a and
y
s?<?y
p?*?cosα?-?x
p?*?sinα?<?y
s?+?b
If "Yes" continues next step,
If "No" illustrates that user's current location without the view zone, changes step (2) over to.
As shown in Figure 5, be a some P(x when user residing position
p, y
p) time, this moment, the position attribution in a certain pre-arrival view zone was south point coordinate S(x
s, y
s), the B side length b, A length of side a, angle, north by west, B limit is α, so by computing, if x
s＜y
p* sin α+x
p* cos α＜x
s+ a and y
s＜y
p* cos α-x
p* sin α＜y
s+ b condition satisfies, and illustrates that the length of side that the P point is in take the S point as summit, the south is respectively a, b, and the drift angle is in the rectangular area of α, and can continue next step this moment.
(5) judge whether this view zone is the view end region.If this view zone does not belong to the view end region, continue next step.If belong to the view end region by judging whether the view end region can trigger, if "Yes" explanation user has arrived the scenic spot outlet, forward step (10) to, if "No" is returned to step (2).
This step is provided with for the view end region whether but trigger condition judges, by the view number of regions that judgement has triggered, if " 〉=1 ", the result of judgement is "Yes", otherwise is "No".For preventing that the user from when the view end region starts, automatically finishing the scenic spot guide and playing an important role.
(6) whether to have triggered attribute be "Yes" in this view of mark zone; Return and trigger view number of regions value+1; Return and trigger the viewing area Field Number.
By the triggering attribute to viewing area field mark "Yes", for having arrived the zone, the user makes a mark, provide foundation for extracting the regional position attribution of pre-arrival view, return to the shot number value and provide basis for estimation for whether the view end region can trigger.
(7) judge whether corresponding view zone, view of living in zone tour guide information is reported, and "No" continues next step, and "Yes" is returned to step (2).
Can not only provide new view zone tour guide information for broadcast by the judgement of whether having reported attribute, and in the tour guide information report situation in view zone, user place, the user is still in a certain view zone the time, can avoid the situation of repeatedly broadcasting view zone tour guide information to occur by whether having reported determined property.
(8) report the regional tour guide information of corresponding view, whether the regional tour guide information of mark view has reported attribute is "Yes".
Setting the end rules that view zone tour guide information reports is: the first situation, meet the report condition if arrived next view zone and view zone tour guide information, and report the new view zone tour guide information that arrives; The second situation is that nature is reported end, waits for the beginning of next time reporting.
(9) judge whether the regional tour guide information of all views has been reported attribute and whether all be labeled as "Yes", if "Yes" continues next step, if "No" is returned to step (2)
If the regional tour guide information of all views is all for triggering state, illustrate that this scenic spot can provide without the tour guide information service, change ending step (10) over to, no longer consider whether the user has arrived all views this moment regional, because all can provide sight spot or the view of the regional tour guide information of view all to view and admire.
(10) report ending message, this scenic spot guide finishes.
Ending message namely is stored in the information in view end region tour guide information.
Repeating step 2 to step 9, forwards step 10 to and finishes this scenic spot guide service when meeting termination condition in step 5 and step 9 occurring in whole visit process.
Specific embodiment of the present invention elaborates summary of the invention; for persons skilled in the art; the any apparent change of under the prerequisite that does not deviate from the principle of the invention, it being done can not exceed the protection domain of the application's claims.
Claims (7)
1.GPS based on the tour guide information triggering method in view zone, mainly comprise view zone relevant data acquisition and process by the GPS locating information and trigger tour guide information and report in intelligent guide system, it is characterized in that triggering step and be:
(1) initialization and prepare domain information database in viewing area in this scenic spot;
(2) obtain user's real-time position information P(x by GPS
p, y
p);
(3) extract the regional position attribution of pre-arrival view from the domain information database of viewing area;
(4) judge customer location whether in a certain pre-arrival view zone, namely current coordinate is with respect to south point S coordinate S(x in the position attribution data of pre-arrival view zone
s, y
s), S point left side limit B is long is that a and angle, north by west, B limit are whether to satisfy x between α for b, S point right edge A is long
s＜y
p* sin α+x
p* cos α＜x
s+ a and y
s＜y
p* cos α-x
p* sin α＜y
s+ b is if "Yes" continues next step, if "No" illustrates that user's current location is not in the view zone, returns to step (2);
(5) judge whether this view zone is the view end region, if this view zone does not belong to the view end region, continue next step, if belong to the view end region by judging whether the view end region can trigger, if "Yes" explanation user has arrived the scenic spot outlet, forward step (10) to, if "No" is returned to step (2);
(6) whether to have triggered attribute be "Yes" in this view of mark zone, returns and trigger view number of regions value "+1 ", returns and trigger the viewing area Field Number;
(7) judge whether corresponding view zone, view of living in zone tour guide information is reported, and "No" continues next step, and "Yes" is returned to step (2);
(8) report the regional tour guide information of corresponding view, whether the regional tour guide information of mark view has reported attribute is "Yes";
(9) judge whether the regional tour guide information of all views has been reported attribute and whether all be labeled as "Yes", if "Yes" continues next step, if "No" is returned to step (2);
(10) report ending message, this scenic spot guide finishes;
Repeating step 2 to step 9, forwards step 10 to and finishes this scenic spot guide service when meeting termination condition in step 5 and step 9 occurring in whole visit process.
In GPS intelligent guide system according to claim 1 based on the tour guide information triggering method in view zone, it is characterized in that: described view zone refers to that the user can obtain the rectangular area that sight spot the best is viewed and admired distant view or middle scape or the close shot of experience in the touring line of scenic spot, the south point coordinate S(x of rectangle
s, y
s), the S point left side is the B limit, and length is b, and S point the right be the A limit, and length is a, and angle, north by west, B limit is α, press the integer order and numbers one by one from " 1 " beginning, and each view zone has and the regional different unique number of other views of this scenic spot.
In GPS intelligent guide system according to claim 1 based on the tour guide information triggering method in view zone, it is characterized in that: described viewing area domain information database has comprised view zone position attribution subdata base, view zone tour guide information subdata base and scenic spot tourist map data;
The position attribution in described view zone has comprised the south point coordinate S(x in this view zone
s, y
s), length of side a, b, drift angle α, the through viewing area Field Number set of periphery and whether triggered attribute; The through view of described view area peripheral edge zone refers in the touring line design, and a certain view area peripheral edge does not need to pass just accessibility view zone, other views zones by touring line; The through viewing area Field Number set of described view area peripheral edge refers to a certain view area peripheral edge through viewing area Field Number is showed with the mode of gathering, as one of the position attribution in this view zone;
Described view zone tour guide information refers to the character introduction text that comprises the visible view in this view zone that corresponding a certain view zone is made in advance and recording, the visible landscape map picture in this view zone, view zone safety instruction information, whether has reported attribute.
In GPS intelligent guide system according to claim 1 based on the tour guide information triggering method in view zone, it is characterized in that: described pre-arrival view zone refers to that the user passes through the next view zone that touring line may directly arrive, but do not comprise and arrived the view zone of triggering, the algorithmic rule in pre-arrival view zone can be divided into two kinds of situations: 1. when triggering the view number of regions for " 1 ", arrive in advance view regional for having triggered the through viewing area Field Number set of periphery in view zone; 2. when triggering the view number of regions when " 1 ", arrive in advance the view zone for the union that triggered the viewing area Field Number with respect to the supplementary set of the union that triggers view area peripheral edge through viewing area Field Number for complete or collected works.
in GPS intelligent guide system according to claim 1 based on the tour guide information triggering method in view zone, it is characterized in that: the setting in view zone can be in advance by the analysis to the scenic spot tourist map, in conjunction with the scenic spot touring line, on the view demand, according to viewing and admiring certain or a plurality of sight spot default rectangle view zone in the itinerary, scenic spot, this corresponding finding view in view zone can be one, can be also a plurality of, can a plurality of views be set according to the different characteristics of viewing and admiring that draw near in the itinerary for same sight spot regional, be numbered, then determine by checking finally on the spot, in conjunction with the scenic spot actual conditions, in view when zone, be set with set-up function view zone two classes: be respectively view and begin zone and view end region, according to the gateway quantity after entering the ticketing spot, scenic spot and gone out the exit position, scenic spot and locate to set respectively.
In GPS intelligent guide system according to claim 3 based on the tour guide information triggering method in view zone, it is characterized in that: when gathering the regional position attribution of view, by checking on the spot, guarantee that position, view zone can enjoy corresponding view, at first acquisition order for gathering the south point coordinate S(x of rectangle
s, y
s), then length of side a, b, secondly drift angle α, determine again the through viewing area Field Number set of periphery at last.
In GPS intelligent guide system according to claim 3 based on the tour guide information triggering method in view zone, it is characterized in that: when gathering the regional tour guide information of view, there is the situation of sharing in view zone tour guide information, the estimate of situation whether view zone tour guide information needs to share is divided into following three kinds: the first situation is to have a plurality of porch in the scenic spot, be provided with a plurality of views and begin the zone, this moment, a plurality of views began the regional tour guide information that only needs to gather; The second situation is to have a plurality of exits in the scenic spot, is provided with a plurality of view end region, and this moment, a plurality of view end region only need to gather a tour guide information; The third situation be when for a certain sight spot when never arriving with the path, when existing the view of seeing substantially similar in the view zone that arrives in two that set different paths, in above three kinds of situations, being shared as by viewing area domain information database internal links of tour guide information shares to a plurality of views zones with a tour guide information;
Then gather the regional tour guide information data of concrete view, according to each actual visible view photographic images in view zone, while finding landscape design tour guide speech regional according to this view also recorded, store as audio file, also comprised in the middle of the tour guide information of view zone and whether reported attribute, this attribute is made as "No" in init state, view zone safety instruction information is stored in tour guide information as option, in the domain information database of viewing area, the view zone tour guide information view zone employing internal links corresponding with it.
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