CN102522085A - Intelligent tour guide service system with scenic spot and intersection broadcasting function - Google Patents
Intelligent tour guide service system with scenic spot and intersection broadcasting function Download PDFInfo
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Abstract
The invention discloses an intelligent tour guide service system with a scenic spot and intersection broadcasting function, comprising a mobile terminal, a mobile communication system, a mobile positioning system and a GIS application server; the GIS application server comprises a module used for processing the broadcasting conflict between scenic spots, the module is used for sieving the most matched effective explaining path by Thiessen polygon technology and multi-round computation so as to accurately determine the scenic spot to be broadcasted; the GIS application server further comprises a module used for processing the broadcasting conflict bewtene the scenic spot and the intersection, judging the broadcasting mode according to the spatial position information of the scenic spot explaining region and the intersection broadcasting region, subdividing the position relation of the two regions into the following five states: displacement, internally tangent, exterior contact, intersection and inclusion, and regulating a corresponding broadcasting conflict solution condition. The system of the invention has the advantages of effectively solving the explain target conflict problem in the electronic tour guide technology.
Description
Technical field
The present invention relates to a kind of intelligent guide service system, relate in particular to intelligent guide service system with sight spot and crossing report function.
Background technology
Along with GPS technology, the technological development of GIS, intelligent guide system more and more receives liking of numerous visitors, and it can also do the sight spot explanation for the visitor in the demand that satisfies visitor's self-service trip, become flexible, fashionable at present guide's mode.But provide in the intelligent guide service system of guide interpreting service all less than considering how reasonably to divide the explanation scope at sight spot at the existing GPS of utilization, and how to handle the collision problem that sight spot explanation and crossing direction information are reported.For the report conflict between the sight spot; Prior art just simply triggers the guide interpreting service according to the distance relation between customer location and the position, sight spot; Like publication number is patents such as CN101587673, CN1913403, CN102142215A; This triggering mode often exists problem in the use of reality; As when the position at some sight spots closely near the time, so between computed user locations and these positions, sight spot apart from the time very possible a plurality of equal values appear, this situation can cause can't normally select the sight spot to carry out the problem of guide interpreting; Though the solution to this type problem is provided in partial monopoly; As rely on manual method to divide the report triggering distance that suits, the priority that the division sight spot is reported etc. for each sight spot, and consider that still it is embodied as originally and implementation efficiency, still there is weak point in these ways.And conflict with report between the intersection information for the sight spot; Prior art does not also provide a kind of rational solution; Like publication number is that CN101587673, name are called the patent of invention of " the sight spot triggering method of putting based on explanation in a kind of GPS intelligent guide system "; Provide a kind of and searched for by triggering cycle of setting and triggering radius whether all explanation points satisfy trigger condition in the scenic spot; From explain orally the some set, select one according to explanation point selection rule and explain orally a method of carrying out speech play; This method has only considered how the user triggers the information report at sight spot (POI point), does not consider the route guidance relation of (between the POI point) between sight spot and the sight spot, can not solve the purpose that the visitor gets lost or goes sight-seeing best sight spot in the scenic spot; Publication number be CN101498586, name be called " the application intelligent guide system carries out scenic spot information preview and tour planing method " patent of invention through downloading the scenic spot map and a control being set in each position, sight spot; The visitor obtains sight spot visit information after clicking control; And according to the visitor select the sight spot that will go sight-seeing; All choose the minimal path at sight spot to adopt the FLOYD algorithm on map, to show a connection, and the visitor can go sight-seeing with reference to this circuit, though the method provides a scenic spot visit recommended line for the visitor; But do not have real-time guiding function, this is beyond doubt one sorry greatly concerning the visitor who likes the trip of the self-service trip and the degree of depth.
Summary of the invention
To the problems referred to above, the present invention will combine the GIS technology, GPS is technological and speech synthesis technique, propose a kind of intelligent guide service system that can effectively solve the explanation goal conflict problem that in present electronic guide technology, exists.
The technical scheme that the present invention adopts is: a kind of intelligent guide service system that has sight spot and crossing report function simultaneously comprises portable terminal, GSM, movable positioning system, four parts of GIS application server; Portable terminal comprises palm PC, portable computer or WAP mobile phone, and the user utilizes this terminal to send services request to long-range server, accepts the result that server transmits then and expresses; GSM adopts GSM, CDMA or GPRS technology, and it radios to the GIS application server with user's demand, and the analysis result with server is transferred to user terminal again; Movable positioning system be meant utilize GPS technology, OTDOA is technological or the technological user's of the obtaining latitude and longitude information of A-GPS, and this positional information is sent to the movable positioning system of user terminal and GIS application server through mobile communications network; The GIS application server sets up on the internet, accepts the visit of WAP gateway, and it accepts the request and the return results of mobile client; Portable terminal has been realized omnidistance interactive voice through distributed speech recognition system; Through movable positioning system real-time obtain customer position information, and according to this positional information real-time to the visitor voice guide and the sight spot explanation service of scenic spot tour are provided; The GIS application server for storage generalized information system module and detailed road net, sight spot information data, comprises in addition handling between sight spot and the sight spot for one and report the module of conflict, and one is handled the module that report conflicts between sight spot and the crossing; When the user get into report the zone after, report the module of conflict between sight spot and the sight spot and carry out the sight spot and judge through handling earlier, carry out the report mode and judge through handling between sight spot and the crossing report module of conflicting again.
Handle and to report the module of conflicting between sight spot and the sight spot and comprise:
(1) the storage user plans the module of line information, each sight spot and intersection information, user real time positional information, explanation text audio file;
(2) positional information with each sight spot generates the module that the sight spot Thiessen polygon is gathered;
(3) user is planned that the set of circuit and sight spot Thiessen polygon carries out intersection operation, obtain the module that the candidate of planning circuit in effective explanation scope at each sight spot effectively explains set of paths;
(4) obtain the module at the current explanation of user sight spot according to the relation of inclusion of user's current location information and the set of sight spot Thiessen polygon;
(5) according to the current explanation of user sight spot, effectively explain to choose in the set of paths the candidate and effectively say solution path with the sight spot at the current explanation of the user sight spot identical candidate of numbering, form the module that interim candidate effectively explains set of paths;
(6) effectively explain set of paths and user's current location information according to interim candidate, carry out the candidate and effectively say the solution path judgement, obtain the module that the candidate effectively says solution path;
(7) effectively say solution path and distance control threshold value according to the current explanation of user sight spot, candidate, effectively say the solution path judgement, effectively said the module of solution path;
(8), calculate and analyze the effectively module of explanation path based on effectively saying solution path and user's current location information;
(9) choose the explanation text is also realized speech conversion and output through speech synthesis engine and voice-output device module;
Handle and to report the module of conflicting between sight spot and the crossing and comprise:
(1) the storage user plans the module of line information, each sight spot and intersection information, user real time positional information, explanation text audio file;
(2) confirm to mix the report unit according to user's position with the planning circuit, and in the unit is reported in said mixing, obtain effective report length L in explanation zone, sight spot
Pi, the crossing reports effective report length L in zone
Ci, the line length L of explanation zone, sight spot between trigger point to the crossing of planning circuit working direction
PcModule;
(3) the judges current location is affiliated reports the zone, then opens the crossing report earlier if belong to report zone, crossing, otherwise carries out the module of reporting the relation judgement of regional space position;
(4) report the module that regional spatial relation is judged the report mode based on explanation zone, sight spot with the crossing, this module comprises again:
Two report the zone on the planning circuit mutually from or judge module when mutually circumscribed: open the sight spot explanation, treat explanation finish after again the judges current location whether belong to the crossing and report the zone, then open the crossing and report if belong to;
Two report that the zone is intersected but judge module when not comprising on the planning circuit: open the sight spot explanation; Judge 0≤L in the said mixing report unit
Pc– (L
Pi+ L
Ci)≤L
0Whether set up L
0For preset in advance or postpone to open the crossing when reporting two report interregional distance thresholds, start the crossing and report if set up then to suspend, after the sight spot explanation finishes, restart, no matter whether user's current location is reported in the zone at the crossing; Otherwise whether the judges current location is reported in the zone at the crossing, then inserts the crossing report if set up, otherwise continues the sight spot explanation;
Two report that the zone comprises mutually or the judge module during the phase inscribe on the planning circuit: judge that said mixing reports 0≤L in the unit
Pc– L
Pi≤L
0Whether set up, start the sight spot explanation, start the crossing in advance and report, treat to open the sight spot explanation again after it finishes if set up then to suspend; If be false, directly open the sight spot explanation, whether the judges current location is reported in the zone at the crossing, reports if the crossing is then inserted in establishment, otherwise continues the sight spot explanation.
Native system is through adopting the Thiessen polygon technology; Effective explanation scope at each sight spot has been done clear and definite reasonably division; Related data is done the computing of many wheels based on user's real time position; What filter out coupling at last effectively says solution path, thereby has triggered the explanation to corresponding sight spot, compare other to trigger guide interpreting recently only according to the distance between customer location and the sight spot more accurate; Judge the report mode based on explanation zone, sight spot and the spatial relation that the zone is reported at the crossing again; With the position in two zones relation be sub-divided into mutually from, phase inscribe, mutually circumscribed, crossing, comprise five kinds of forms mutually; And formulated corresponding report conflict terms of settlement; Thereby adjust the start-up time of crossing report, in the time of can effectively avoiding opening the sight spot explanation and sight spot is explained the sight spot of inserting the crossing report when closing to an end and causing and is explained the situation generation that does not suspend naturally.
Description of drawings
Fig. 1 is the composition and the service procedure figure of system of the present invention.
Fig. 2 handles the workflow diagram of reporting the module of conflicting between sight spot and the sight spot.
Fig. 3 handles the candidate who reports the module of conflicting between sight spot and the sight spot effectively to explain the set of paths decision flow chart.
Fig. 4 handles the case study on implementation sight spot distribution plan of reporting the module of conflicting between sight spot and the sight spot.
Fig. 5 handles the workflow diagram of reporting the module of conflicting between sight spot and the crossing.
Fig. 6 handles the sight spot explanation of reporting the module of conflict between sight spot and the crossing special processing exemplary plot of conflicting with the crossing report.
Fig. 7 handles the sight spot explanation of reporting the module of conflict between sight spot and the crossing conventional processing exemplary plot of conflicting with the crossing report.
Fig. 8 handles the case implementing procedure figure that reports the module of conflicting between sight spot and the crossing.
Embodiment
Below in conjunction with accompanying drawing and embodiment the present invention is done further explain.
The prior art platform that the present invention uses comprises: GIS module, GPS acquisition module, phonetic synthesis module.
The existing method that the present invention adopts comprises: open method one: the Thiessen polygon generating algorithm (Zhang Hong, warm Yongning, Liu Aili. GIS-Geographic Information System algorithm basis [M]. Science Press, 2006:176 page or leaf); Open method two: point whether in polygon evaluation algorithm (Zhang Hong, warm Yongning, Liu Aili. GIS-Geographic Information System algorithm basis [M]. Science Press, 2006:26 page or leaf); Open method three: the Straight Insertion Sort method (Yan Weimin, Wu Weimin. data structure (C language version) [M]. publishing house of Tsing-Hua University: 265 pages); Open method four: polygon and polygon concern evaluation algorithm (Zhang Hong, warm Yongning, Liu Aili. GIS-Geographic Information System algorithm basic [M]. Science Press, 2006:32 page or leaf); Open method five: point whether in circle evaluation algorithm (Zhang Hong, warm Yongning, Liu Aili. GIS-Geographic Information System algorithm basis [M]. Science Press, 2006:33 page or leaf); Open method six: circle whether in circle evaluation algorithm (Zhang Hong, warm Yongning, Liu Aili. GIS-Geographic Information System algorithm basic [M]. Science Press, 2006:33 page or leaf).Also having used simultaneously publication number is that CN102142215A, denomination of invention are some step in the patented claim of " a kind of geography information adaptive voice explanation method of taking Position And Velocity into account ".
Native system is handled the concrete workflow (see figure 2) of reporting the module of conflicting between sight spot and the sight spot:
Utilize existing GIS module that longitude and latitude are converted into the coordinate in the specific map projection; Be recorded as (X; Y); Wherein X is the coordinate of latitude in specific map projection, and Y is the coordinate (hereinafter X be latitude coordinate in specific map projection, Y be longitude coordinate in specific map projection) of longitude in specific map projection.The user plans that circuit is meant from the user movement starting point and is made up of a series of coordinate points to the path the user movement terminal point.
(1) setting the sight spot location sets does
P={
p i =(
X i , Y i ) |
i=1
n
,N is a sight spot quantity }; The user plans that circuit does
R={
r i =(
X i , Y i ) |
I=1
m
,M plans the coordinate points quantity in the circuit for the user }; Sight spot Thiessen polygon set is VoroA; The candidate says that effectively solution path is CSR; It is CSRA that the candidate effectively explains set of paths; It is TCSRA that interim candidate effectively explains set of paths; Say that effectively solution path is VSR; Effectively the explanation path is S; Distance control threshold value is D, is meant with the sight spot to be the radius of the circular buffer zone in the center of circle, is used for control and whether triggers the audio guide explanation; Effectively the explanation time does
TPhonetic synthesis speed does
VT, be meant the literal quantity that to synthesize in the phonetic synthesis module unit interval; Effectively the explanation word length does
CExplanation section choice set is combined into
SELECTCurrent explanation sight spot is CSP; User's current location is UP; The current movement velocity of user is V; The position deviation threshold value is L, is meant that user's current location plans the distance of the coordinate points ri on the circuit with respect to the user; Export explanation section sequence number M initial value and be made as 1;
(2) adopt open method one " Thiessen polygon generating algorithm ", generate sight spot Thiessen polygon set according to sight spot location sets P
VoroA=
Voro i =(
Id i , point i ) |
i=1
N, n are sight spot quantity },
Id i ForThe numbering of Thiessen polygon, its value is identical with subscript i (with the numbering of the subscript among the P),
Point i Coordinate points message structure for comprising in the Thiessen polygon specifically is expressed as
Point i =
Pon j =(
X j , Y j ) |
j=1
k
,K is the quantity on this Thiessen polygon summit };
(3) plan circuit R and sight spot Thiessen polygon set VoroA according to the user, carry out the candidate and effectively explain the set of paths judgement, obtain the candidate and effectively explain set of paths CSRA (as shown in Figure 3);
(4) carry out current explanation sight spot and judge, obtain current explanation sight spot CSP;
(5) effectively explain among the set of paths CSRA the candidate according to current explanation sight spot CSP and choose with CSP's
IdIdentical candidate effectively says solution path, forms interim candidate and effectively explains set of paths
TCSRA={
Tcsr i =(
Id i , point i ) |
i=1
N, n are that interim candidate effectively explains number of paths },
Id i For this candidate effectively says the numbering (with the Thiessen polygon numbering at this sight spot) at sight spot under the solution path,
Point i For this candidate effectively says the coordinate points message structure in the solution path, specifically be expressed as
Point i =
Pon j =(
X j , Y j ) |
j=1
l
,L effectively says the coordinate points quantity in the solution path for the candidate };
(6) effectively explain set of paths TCSRA and user's current location UP according to interim candidate, carry out the candidate and effectively say the solution path judgement, obtain the candidate and effectively say solution path CSR;
(7) effectively say solution path CSR, distance control threshold value D and current explanation sight spot CSP according to the candidate, carry out and effectively say the solution path judgement, effectively said solution path VSR;
(8) according to effectively saying solution path VSR and user's current location UP, carry out effectively explanation path judgement, effectively explained path S; If S=0, then carry out current explanation sight spot judge after more current explanation sight spot whether identical, if inequalityly forward step (5) to, otherwise repeating step (8);
(9) the current movement velocity V of the user who utilizes GPS to obtain and effective explanation path S, carry out following audio guide explanation process (drawing the step in existing publication application CN102142215A):
(a) if time T=S ÷ V is then effectively explained in V ≠ 0, change step (b); If V=0 effectively explains time T and uses a special value to represent, change step (c);
(b) calculate effectively explanation word length
C,
C=
VT*
T
(c) according to the explanation text of current explanation sight spot CSP, effectively explain word length
CExported explanation section sequence number
M, carry out geographical information matches, get access to the explanation section and select set
SELECT
(d) select set for the explanation section
SELECT, carry out speech conversion and output;
Regularly carrying out current explanation sight spot judges; If the numbering at current explanation sight spot changes; Then stop step (9) flow process; Exported explanation section sequence number M and be made as 1, forwarded step (5) to, do not changed if work as the numbering of foreground point; Then carry out effectively explanation path judgement; Obtain comparing with current effective explanation path after new effective explanation path, if unequal, execution in step (9) again then; If the user selects to withdraw from the audio guide explanation, then forward step (10) to;
(10) finish.
The candidate effectively explains set of paths and judges the flow process (see figure 3):
(1) the traversal user plans the coordinate points among the circuit R, adopts open method two " point whether in polygon evaluation algorithm ", in sight spot Thiessen polygon set VoroA, calculates the sight spot Thiessen polygon under each coordinate points among the R, and forms set
DSCRA=
Dscr i =(
X i , Y i , id i ) |
i=1 ... N, n is the coordinate points quantity among the planning circuit R },
Id i Numbering for the Thiessen polygon at affiliated sight spot;
(2) comparison starting position mark=i is set, traversal DSCRA, relatively
Dscr i With
Dscr I+1 IdWhether identically be worth, if the identical i=i+1 that then makes, continue relatively; When
Dscr i With
Dscr I+1 IdBe worth and make i=i+1 forward step (3) to when inequality; If it is after having traveled through DSCRA, all
Dscr i IdBe worth all identically, then forward step (4) to after the execution of step (3), otherwise directly forward step (4) to;
(3) will
Dscr Mark Arrive
Dscr I-1 Between (comprise
Dscr Mark With
Dscr I-1 ) element add the candidate to and effectively explain set of paths
CSRA=
Csr j =(
Id j , point j ) |
j=1
T, t effectively explains number of paths for the candidate } in,
Id j For this candidate effectively says the Thiessen polygon numbering at sight spot under the solution path, pointj for this candidate effectively say in the solution path the coordinate points message structure (promptly
Dscr Mark Arrive
Dscr I-1 Between (comprise
Dscr Mark With
Dscr I-1 ) all coordinate points), specifically be expressed as
Point j =
Pon k =(
X k , Y k ) |
k=1
m
,M does
Dscr Mark Arrive
Dscr I-1 (comprise
Dscr Mark With
Dscr I-1 ) between coordinate points quantity; After finishing, interpolation forwards step (2) to;
(4) finish;
Flow process is judged at current explanation sight spot:
(1) utilize GPS obtain user's current location UP=(X, Y);
(2) according to user's current location UP and sight spot Thiessen polygon set VoroA, adopt open method two " point whether in polygon evaluation algorithm ", obtain current explanation sight spot
CSP={
Csp=(
Id,
X,
Y),
IdNumbering for current explanation sight spot;
(3) finish;
The candidate effectively says solution path judgement flow process:
(1) if Len (
TCSRAThen will in)=1
TCSRAIn unique coordinate points message structure add to
CSRIn, promptly
CSR=
Cs i =(
X i , Y i ) |
i=1
l
,L is a coordinate points quantity }; If Len (
TCSRA)>1, change step (2); Len (
TCSRA) be meant
TCSRAIn number of elements;
(2) traversal
TCSRA, calculate successively
Point i In first coordinate points and user's current location
UPDistance
Dis=
, with all
DisAdd set to
TPA=
Tp j =(
Dis j ,
Id j ) |
j=1 ... N, n be Len (
TCSRA) in,
Id j For
Point i Lower label
iValue;
(3) adopt open method three " Straight Insertion Sort method ", pair set
TPAIn element with
Dis j The value ascending sort, the ordering finish the back in TCSRA, search with
Tp 1 The identical element of id value, and coordinate points message structure wherein added to
CSRIn, promptly
CSR=
Cs i =(
X i , Y i ) |
i=1
l
,L is a coordinate points quantity };
(4) finish;
Effectively say solution path judgement flow process:
(1) the traversal candidate effectively says solution path CSR; Calculate wherein coordinate points and the distance B is=
of current explanation sight spot CSP successively; If Dis≤D then adds this coordinate points to and effectively says among the solution path VSR;
(2) finish;
Effectively the explanation path is judged flow process:
(1) traversal is effectively said solution path
VSR, calculate successively
VSRIn coordinate points and user's current location
UP=(
X, Y) distance
Dis=
, navigate to
DisMinimum point (
X i , Y i ), if this
Dis>L then effectively explains path
S=0, change step (3), otherwise change step (2);
(2) calculate from (
X i , Y i ) begin to
Length, promptly effectively explain path
, wherein, Len (
VSR) be meant
VSRThe coordinate points quantity that comprises;
(3) finish;
Native system is handled the concrete workflow (see figure 5) of reporting the module of conflicting between sight spot and the crossing:
Is that region R is reported at the crossing according to crossing and sight spot with area dividing
CiWith sight spot explanation region R
Pi, with Current GPS position P
GpsDo not report crossing C to the next one
iBetween related R
PiAnd R
CiBe called one and mix report unit U
i, with trigger point to the crossing C of explanation zone, sight spot in planning circuit working direction
iBetween line length be designated L
Pc, will plan that circuit is at R
PiInterior line length is called effective report length L at sight spot
Pi, will plan that circuit is at R
CiInterior line length is called C
iEffective report length L
Ci, the user judges P when the planning circuit advances
GpsThe affiliated zone of reporting: if P
GpsBelong to the crossing and report region R
Ci, then start crossing C earlier
iDirection information report, wait to report and judge whether explanation region R again after finishing at the sight spot
PiIn, thereby whether decision starts sight spot explanation work; If current location belongs to sight spot explanation region R
Pi, then judge crossing report region R earlier
CiWith sight spot explanation region R
PiSpatial relationship, and combine two L that report between the area triggering points
Pc, L
PiAnd L
CiBetween distance relation (shown in accompanying drawing 6), in advance or postpone intersection information and report in good time.
(1) initialization P
Gps, obtain active user's positional information and confirm U
i
(2) at U
iThe open method of interior employing is obtained the POI region R
PiEffective report length L
Pi, the crossing reports region R
CiEffective report length L
CiAnd L
PcValue;
(3) judge current P
GpsThe affiliated zone of reporting is as if P
GpsDo not belong to simultaneously R
CiAnd R
Pi, then return step (1), otherwise carry out next step;
(4) if P
GpsBelong to the crossing and report region R
Ci, then at first report intersection information C
i, otherwise carry out next step;
(5) set in advance or postpone the crossing when reporting information two to report interregional be L apart from threshold values
0, if P
GpsBelong to the POI region R
Pi, then according to POI explanation region R
PiReport region R with the crossing
CiSpatial relation judge the report mode:
(a) if both leave on the circuit in planning mutually, promptly do not exist to comprise or overlapping relation, then open the explanation of POI zone, treat explanation finish after again the judges current location whether belong to the crossing and report the zone, then open the crossing and report if belong to;
(b) if R
PiWith R
CiOn the planning circuit, intersect but do not comprise, then open the POI explanation; Judge U
iInterior 0≤L
Pc– (L
Pi+ L
Ci)≤L
0Whether set up, start crossing C if set up then to suspend
iReport, after the POI explanation finishes, restart, no matter whether user's current location is reported in the zone at the crossing; Otherwise forward (c) to;
(c) judge current P
GpsWhether report region R at the crossing
CiIn, then insert crossing C if set up
iReport information, otherwise continue the explanation of POI zone, forward (7) to;
(6) two report the zone comprises or the phase inscribe on the planning circuit mutually, judges U
iInterior 0≤L
Pc– L
Pi≤L
0Whether set up, start the explanation of POI zone, report crossing C in advance if set up then to suspend
iTurning information, finish the back and open the explanation of POI zone; Then directly open the explanation of POI zone if be false, forward (c) afterwards to;
(7) finish one and mix report unit U
i, return (1);
Handle and to report the module embodiment (as shown in Figure 4) that conflicts between sight spot and the sight spot:
GPS position acquisition module is provided by the GPS chip that mobile device carries; GIS-Geographic Information System (GIS) module realizes based on the ArcGISMobile10 Software Secondary Development of ESRI company; Directly drive the GPS chipset through relevant interface; Obtain with information such as current longitude and latitude positions; The output of synthetic speech uses the speech synthesis engine ejTTS6.0 of Jie Tonghua sound company and interface thereof to realize in the voice output module, accomplishes based on the Interop.WMPLib.dll file that is specifically designed to mobile device that the voice output of audio frequency report then uses Microsoft to provide.
Fig. 4 is the sight spot distribution plan in the case study on implementation, and in case study on implementation, the scenic spot is made up of 7 sight spots, and thick line is planned circuit for the user among the figure, and the dashed circle of sight spot periphery is circular buffer zone among the figure, and its radius is distance control threshold value D.Coordinate is the coordinate under the Universal Transverse Mercator Projection among the figure, sight spot location sets P={ (57,131), (49,89), (108,143), (91,107), (103,63), (144,104); (158,150) }, the user plans circuit R={ (37,152), (43,135), (53,134), (63,131), (73,126), (77; 117), (89,115), (99,120), (103,128), (113,130), (121,129), (125,137); (131,142), (141,142), (146,138), (149,134), (144,124), (147,116), (139; 100), (124,102), (113,96), (107,97), (101,95), (100,89), (109,80); (118,76), (113,76), (142,82), (150,80), (159,57) }, distance control threshold value D=20 rice, position deviation threshold value L=5 rice.
At first generate the sight spot Thiessen polygon, promptly the polygon around the sight spot among Fig. 4 can be seen all only comprising a sight spot in each Thiessen polygon.Its concrete data for sight spot Thiessen polygon set VoroA={ (1, point1), (2, point2), (3, point3), (4, point4); (5, point5), (6, point6), (7, point7) }, point1={ (36,140) wherein; (60,150), (88,130), (68,114), (34,114) }; Point2={ (16,78), (68,54), (76,80), (68,114), (34,114) }; Point3={ (60,150), (88,130), (116,118), (142,131), (124,163), (84,162) }; Point4={ (88,130), (68,114), (76,80), (116,90), (116,118) }; Point5={ (80,38), (124,40), (136,68), (116,90), (76,80), (68,54) }; Point6={ (168,86), (172,116), (142,131), (116,118), (116,90), (136,68) }; Point7={ (182,149), (152,180), (124,163), (142,131), (172,116) };
Plan circuit R and sight spot Thiessen polygon set VoroA based on the user, carry out the candidate and effectively explain the set of paths judgement, obtain the candidate and effectively explain set of paths CSRA.CSRA={ (1, point1), (2, point2), (3, point3), (4, point4), (5, point5), (6, point6), (7, point7), (5, point8) }, point1={ (43,135) wherein, (53,134), (63,131), (73,126) }; Point2={ (77,117), (89,115), (99,120) }; Point3={ (103,128), (113,130), (121,129), (125,137), (131,142) }; Point4={ (141,142), (146,138), (149,134) }; Point5={ (144,124), (147,116), (139,100), (124,102) }; Point6={ (113,96), (107,97), (101,95), (100,89) }; Point7={ (109,80), (118,76) }; Point8={ (113,76), (142,82), (150,80) }.
Coordinate according to the GPS module is obtained calculates the Thiessen polygon at the current place of user.User's current location
UP=(42,137) obtain current explanation sight spot after calculating
CSP={ (1,57,131) }.
According to current explanation sight spot
CSPEffectively explain set of paths the candidate
CSRAIn choose with
CSP IdIdentical candidate effectively says solution path, forms interim candidate and effectively explains set of paths
TCSRACurrent explanation sight spot
CSP Id=1,
CSRAIn have only candidate effectively to say solution path
IdWith
CSP IdEquate, therefore
CSRA=(1, point
1), point wherein
1={ (43,135), (53,134), (63,131), (73,126) }.
Effectively explain set of paths according to interim candidate
TCSRAWith user's current location
UP, carry out the candidate and effectively say the solution path judgement, obtain the candidate and effectively say solution path
CSRBecause
CSRAHave only a candidate effectively to say solution path, therefore
CSR=(1, point
1), point wherein
1={ (43,135), (53,134), (63,131), (73,126) }.
Effectively say solution path according to the candidate
CSR, distance control threshold value
DWith current explanation sight spot
CSP, carry out and effectively say the solution path judgement, effectively said solution path
VSRThe traversal candidate effectively says solution path
CSR, calculate wherein coordinate points and current explanation sight spot successively
CSPDistance, the result does
DisA={ 14,5,6,16} (rounding up) is all less than distance control threshold value
D=20, so effectively say solution path
VSR={ (43,135), (53,134), (63,131), (73,126) }.
According to effectively saying solution path
VSR, carry out effectively explanation path judgement, effectively explained path
STraversal is effectively said solution path
VSR, calculate successively
VSRIn coordinate points and user's current location
UPThe distance of=(42,137) obtains set
DisA={ 2,11,22,33} (rounding up) can be judged user's current location and effectively said solution path by distance relation
VSRIn (43,135) the most approaching, and less than the position deviation threshold value
L, so the method in according to the present invention is tried to achieve effective explanation path
S=31 meters (rounding up).
The current movement velocity of the user who utilizes GPS to obtain
V=0.2 meter per second and effective explanation path
S=31 meters, carry out the audio guide explanation.Setting according to the guide interpreting speech at the current explanation sight spot of the explanation text rule storage that proposes among the existing publication application CN102142215A is: "/
SI 1 TY 1 AM 37 Here pool, the lowest point deep water is green, and ancient times, biography had Long Ju, two peaks to stand facing each other just like Buddhism, and the ancient hole remnants in bank is faint deep, so name Long Mendong./
SI 2 TY 1 AM 63 Here waterfall natural flow in the past, the woods deep valley is deep and remote, and along with the expansion of mankind's activity scope, the manor of natural kingdom day by day dwindles, and the figure of original ecology is retreated to the remote mountains, so the magnificence of gantry waterfall has become historical record./
SI 3 TY 1 AM 29 Guests, present Mount Emei has been listed in human nature by the United Nations and has protected with cultural heritage./
SI 4 TY 1 AM 64 For we can witness gantry fairy-like beauty in the past once more, also in order to present the Nature the descendants who intactly gives us to our this Lutao of Mount Emei, let us consciously adds environmentalist's ranks." wherein,
SIExpression
Sid i ,
TYExpression
Type i ,
AMExpression
Amount i , SI,
TY,
AMSubscript represent the value of this parameter.Carry out after the audio guide explanation process among the existing publication application CN102142215A; What obtain treats that explanation guide content is for " pool, the lowest point deep water is green, and ancient times, biography had Long Ju, two peaks to stand facing each other just like Buddhism; the ancient hole remnants in bank is faint deep, so name Long Mendong here.Here waterfall natural flow in the past, the woods deep valley is deep and remote, and along with the expansion of mankind's activity scope, the manor of natural kingdom day by day dwindles, and the figure of original ecology is retreated to the remote mountains, so the magnificence of gantry waterfall has become historical record.Guests, present Mount Emei has been listed in human nature by the United Nations and has protected with cultural heritage." utilize this explanation content of speech synthesis engine output to carry out the audio guide explanation.
Handle and to report the module embodiment that conflicts between sight spot and the crossing:
Accompanying drawing 8 is the workflow exemplary plot in the case study on implementation, and POI explains region R
PiComprised crossing explanation region R
Ci, wherein the explanation content in POI zone is: " front is stroked the water mountain villa exactly, the gardens villa of bright fresh breeze lattice.Take up an area of more than 60 mu, 3048 square metres of floor area of building.Build near water in whole mountain villa, white washed wall black pigment used by women in ancient times to paint their eyebrows watt, and small bridge over the flowing stream, winding corridor is winding, and garden is deep.Recovered Chaoyang pavilion, coupling and ploughed buildings such as hall, Hua Xinlou, Shan Lou, Ming Fatang, plum garden Xi Tang, autumn waters--limid eyes pavilion, made and stroke water mountain villa eight scapes and be able to reproduction.", the content that the zone is reported at the crossing is: " please turn right in the place ahead "; P
GpsBe the current position coordinates of user; Set in advance or postpone the crossing when reporting information two to report interregional be L apart from threshold values
0=10 meters, system implements through following steps:
(1) judges P according to open method two
GpsThe current present position of coordinate does not belong to the crossing and reports region R
Ci, but belong to POI explanation region R
Pi
(2) spatial relation of judgement Rpi and Rci, there is relation of inclusion in both;
(3) judge 0≤L
Pc– L
Pi≤L
0(threshold values: L
0=10 meters) set up, then suspend start the explanation of POI zone (although this moment P
GpsBelong to POI explanation region R
Pi), report crossing C in advance
iTurning information, open POI zone explanation after the end again, the report content of this moment should be " " please turn right in the place ahead " (turning information in crossing report in advance and finish back); The front is stroked the water mountain villa exactly, the gardens villa of bright fresh breeze lattice.Take up an area of more than 60 mu, 3048 square metres of floor area of building.Build near water in whole mountain villa, white washed wall black pigment used by women in ancient times to paint their eyebrows watt, and small bridge over the flowing stream, winding corridor is winding, and garden is deep.Recovered Chaoyang pavilion, coupling and ploughed buildings such as hall, Hua Xinlou, Shan Lou, Ming Fatang, plum garden Xi Tang, autumn waters--limid eyes pavilion, made and stroke water mountain villa eight scapes and be able to reproduction.”。
(4) this U
iInternal information is reported and is finished;
(5) the rest may be inferred accomplishes the report that whole piece is planned circuit;
Work as R
PiWith R
CiSpatial relation shown in accompanying drawing 6 (a) time, if judge 0≤L
Pc– (L
Pi+ L
Ci)≤L
0Condition set up, then the report content of this moment is: " front is stroked the water mountain villa exactly, the gardens villa of bright fresh breeze lattice.Take up an area of more than 60 mu, 3048 square metres of floor area of building.Build near water in whole mountain villa, white washed wall black pigment used by women in ancient times to paint their eyebrows watt, and small bridge over the flowing stream, winding corridor is winding, and garden is deep.Recovered Chaoyang pavilion, coupling and ploughed buildings such as hall, Hua Xinlou, Shan Lou, Ming Fatang, plum garden Xi Tang, autumn waters--limid eyes pavilion, made and stroke water mountain villa eight scapes and be able to reappear (the POI explaining information finishes afterwards); " please turn right in the place ahead " ".
At a U
iInterior POI explanation region R
PiReport region R with the crossing
CiComprise mutually (d) like accompanying drawing 7 (c); And do not satisfy when conflicting treatment conditions, only need in the process in explanation POI zone, suspend, insert crossing direction information report immediately and get final product; Then the report content of this moment is: " front is stroked the water mountain villa exactly, the gardens villa of bright fresh breeze lattice.Take up an area of more than 60 mu, 3048 square metres of floor area of building.(the POI explaining information does not finish, and inserts the crossing and reports) " please turn right in the place ahead "; Build near water in whole mountain villa, white washed wall black pigment used by women in ancient times to paint their eyebrows watt, and small bridge over the flowing stream, winding corridor is winding, and garden is deep.Recovered Chaoyang pavilion, coupling and ploughed buildings such as hall, Hua Xinlou, Shan Lou, Ming Fatang, plum garden Xi Tang, autumn waters--limid eyes pavilion, made and stroke water mountain villa eight scapes and be able to reproduction ".
Claims (1)
1. one kind has the intelligent guide service system that function is reported at sight spot and crossing simultaneously; Comprise portable terminal, GSM, movable positioning system, four parts of GIS application server, said GIS application server for storage generalized information system module and detailed road net, sight spot information data; It is characterized in that said GIS application server also comprises handling between sight spot and the sight spot for one reports the module of conflict, and one is handled the module that report conflicts between sight spot and the crossing; Reporting the module of conflicting between said processing sight spot and the sight spot comprises:
(1) the storage user plans the module of line information, each sight spot and intersection information, user real time positional information, explanation text audio file;
(2) positional information with each sight spot generates the module that the sight spot Thiessen polygon is gathered;
(3) user is planned that the set of circuit and sight spot Thiessen polygon carries out intersection operation, obtain the module that the candidate of planning circuit in effective explanation scope at each sight spot effectively explains set of paths;
(4) obtain the module at the current explanation of user sight spot according to the relation of inclusion of user's current location information and the set of sight spot Thiessen polygon;
(5) according to the current explanation of user sight spot, effectively explain to choose in the set of paths the candidate and effectively say solution path with the sight spot at the current explanation of the user sight spot identical candidate of numbering, form the module that interim candidate effectively explains set of paths;
(6) effectively explain set of paths and user's current location information according to interim candidate, carry out the candidate and effectively say the solution path judgement, obtain the module that the candidate effectively says solution path;
(7) effectively say solution path and distance control threshold value according to the current explanation of user sight spot, candidate, effectively say the solution path judgement, effectively said the module of solution path;
(8), calculate and analyze the effectively module of explanation path based on effectively saying solution path and user's current location information;
(9) choose the explanation text is also realized speech conversion and output through speech synthesis engine and voice-output device module;
Reporting the module of conflicting between said processing sight spot and the crossing comprises:
(1) the storage user plans the module of line information, each sight spot and intersection information, user real time positional information, explanation text audio file;
(2) confirm to mix the report unit according to user's position with the planning circuit, and in the unit is reported in said mixing, obtain effective report length L in explanation zone, sight spot
Pi, the crossing reports effective report length L in zone
Ci, the line length L of explanation zone, sight spot between trigger point to the crossing of planning circuit working direction
PcModule;
(3) the judges current location is affiliated reports the zone, then opens the crossing report earlier if belong to report zone, crossing, otherwise carries out the module of reporting the relation judgement of regional space position;
(4) report the module that regional spatial relation is judged the report mode based on explanation zone, sight spot with the crossing, this module comprises again:
Two report the zone on the planning circuit mutually from or judge module when mutually circumscribed: open the sight spot explanation, treat explanation finish after again the judges current location whether belong to the crossing and report the zone, then open the crossing and report if belong to;
Two report that the zone is intersected but judge module when not comprising on the planning circuit: open the sight spot explanation; Judge 0≤L in the said mixing report unit
Pc– (L
Pi+ L
Ci)≤L
0Whether set up L
0For preset in advance or postpone to open the crossing when reporting two report interregional distance thresholds, start the crossing and report if set up then to suspend, after the sight spot explanation finishes, restart, no matter whether user's current location is reported in the zone at the crossing; Otherwise whether the judges current location is reported in the zone at the crossing, then inserts the crossing report if set up, otherwise continues the sight spot explanation;
Two report that the zone comprises mutually or the judge module during the phase inscribe on the planning circuit: judge that said mixing reports 0≤L in the unit
Pc– L
Pi≤L
0Whether set up, start the sight spot explanation, start the crossing in advance and report, treat to open the sight spot explanation again after it finishes if set up then to suspend; If be false, directly open the sight spot explanation, whether the judges current location is reported in the zone at the crossing, reports if the crossing is then inserted in establishment, otherwise continues the sight spot explanation.
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| CN112581319B (en) * | 2020-12-16 | 2024-04-09 | 南京师范大学 | Tourist attraction automatic explanation method based on geographical visual analysis |
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