CN102421061A - Voice explanation method capable of solving conflict of scenic spot broadcast - Google Patents
Voice explanation method capable of solving conflict of scenic spot broadcast Download PDFInfo
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Abstract
The invention discloses a voice explanation method capable of solving the conflict of scenic spot broadcast, wherein the method combines a geographic information system technology, a global positioning system technology and a voice synthesis technology. The method mainly comprises the following steps of: taking a thiessen polygon generated by each scenic spot as an effective explanation scope of the scenic spot, and performing intersection operation on a planning line and a thiessen polygon set, so that a candidate effective explanation route of the planning line in the effective explanation scope of each scenic spot can be obtained; confirming the current explanation scenic spot of a user according to an inclusion relation between the current position information of the user and the thiessen polygon set, and obtaining the effective explanation route by comparing a distance relationship between a coordinate point in the candidate effective explanation route of the current explanation scenic spot and a distance control threshold value; and performing a geographic information matching and outputting method to perform voice tour guide explanation. The problem of explanation target conflict existing in a tour guide technology can be effectively solved.
Description
Technical field
The present invention relates to a kind of to portable terminal self-help guide service system needs proposed, can solve the speech sound eeplaining method that conflict is reported at the sight spot.
Background technology
The portable terminal self-help guide service system that the present invention relates to is a kind of with GPS (Global Positioning System; Global positioning system) to obtain customer location be foundation to technology; With GIS (Geographic Information System; GIS-Geographic Information System) technology is a platform; The attribute data and the spatial data that have wherein comprised scenic spot, sight spot like the guide interpreting speech text at scenic spot electronic chart, sight spot, the latitude and longitude coordinates at sight spot etc., are the system that instrument output guide interpreting speech carries out guide interpreting with the speech synthesis technique.GPS has the advantages that performance is good, precision is high, application is wide, is present the most general navigation positioning system, has spreaded all over the various departments of national economy, and has progressively goed deep into daily life, is mainly used in the present invention and obtains the current latitude and longitude coordinates of user.GIS is the basic platform of input, storage, inquiry, computing, analysis and application to geography information; As a kind of common technique in the GIS field, the main feature of Thiessen polygon comprises: the point that only contains in each Thiessen polygon in the discrete points data, Thiessen polygon equates to the distance of the discrete point on its both sides to the nearest of corresponding discrete point and the point that is positioned on the Thiessen polygon limit.The present invention utilizes the GIS technology to realize the calculating and the analysis of guide interpreting circuit, sight spot explanation scope, projection conversion etc.Speech synthesis technique solves how Word message is converted into the problem of acoustic information, thereby makes people obtain the abundant more and nature of mode of information, is used in the present invention the guide interpreting speech text-string at sight spot is synthesized voice automatically.
At the existing GPS of utilization the explanation scope of all how reasonably to divide the sight spot less than consideration in the technology of guide interpreting service is provided; And just simply trigger the guide interpreting service according to the distance relation between customer location and the position, sight spot, be patents such as CN101587673, CN1913403, CN102142215A like publication number.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, triggers distance, divides the priority of sight spot report etc. for the suitable report of each sight spot division as relying on manual method; But consider that it is embodied as originally and implementation efficiency, still there is weak point in these ways.
Summary of the invention
To the problems referred to above; The present invention will be based on Thiessen polygon; In conjunction with GIS is technological, GPS is technological and speech synthesis technique; Propose the judgement of a kind of fusion Thiessen polygon and sight spot distance relation and carry out electronic speech guide interpreting method, solve the problems such as explanation goal conflict that in present electronic guide technology, exist.
Technical scheme of the present invention may further comprise the steps:
Step 1: set the user who constitutes by a series of coordinate points and plan circuit; Promptly from the user movement starting point to the path the user movement terminal point, utilize the map projection of GIS module and coordinate transform function that the user is planned that the longitude and latitude coordinate transformation of coordinate points on the circuit is the coordinate in the specific map projection; Utilize the information such as coordinate, title, explanation text at each sight spot of data organization function storage of GIS module;
Step 2: adopt the Thiessen polygon method of formation, with the positional information generation sight spot Thiessen polygon set at each sight spot, the corresponding Thiessen polygon in each sight spot is effective explanation scope at this sight spot;
Step 3: the user is planned that the set of circuit and sight spot Thiessen polygon carries out intersection operation, obtain the candidate of planning circuit in effective explanation scope at each sight spot and effectively explain set of paths;
Step 4: utilize GPS to obtain user's current location information, obtain the current explanation of user sight spot according to the inclusion relation of user's current location information and the set of sight spot Thiessen polygon;
Step 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, form interim candidate and effectively explain set of paths with the sight spot at the current explanation of the user sight spot identical candidate of numbering;
Step 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 candidate and effectively say solution path;
Step 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 solution path;
Step 8:, calculate effectively explanation path based on effectively saying solution path and user's current location information; If effectively the explanation path is non-vanishing, change step 9; If equal zero, then carry out current explanation sight spot and judge relatively whether the current explanation of user sight spot is identical in the back, if the step 5 that forwards to inequality, otherwise repeating step eight;
Step 9: the current movement velocity of the user who utilizes GPS to obtain, effectively explain the speed of the synthetic literal of path and speech synthesis engine; Calculate effectively explanation word length; From the explanation text at current explanation sight spot, choose target explanation literal, realize speech conversion and output through speech synthesis engine and voice-output device smaller or equal to this length; Regularly carry out current explanation sight spot and judge,, then stop step 9, exported explanation section sequence number value and be made as 1, forward step 5 to if the numbering at current explanation sight spot changes; If the numbering at current explanation sight spot does not change, effectively explain path to judge that obtain comparing with current effective explanation path after new effective explanation path, if unequal, execution in step nine again; If the user selects to withdraw from the audio guide explanation, then forward step 10 to;
Step 10: finish.
The present invention 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 according to 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.Especially in that can to explain the intensive advantage local of the present invention in sight spot more obvious, the user position possibly relate to some sight spots simultaneously and report the zone, and this moment, general triggering mode just can be reported by one of random choose, thereby error rate is higher.Because realization of the present invention needs adding cost hardly, can improve the efficient of intelligent guide again, application prospect is extensive.
Description of drawings
Fig. 1 is the inventive method applicating flow chart.
Fig. 2 is the inventive method workflow diagram.
Fig. 3 is that the candidate in the inventive method effectively explains the set of paths decision flow chart.
Fig. 4 is the current explanation sight spot decision flow chart in the inventive method.
Fig. 5 is that the candidate in the inventive method effectively says the solution path decision flow chart.
Fig. 6 effectively says the solution path decision flow chart in the inventive method.
Fig. 7 is the effective explanation path decision flow chart in the inventive method.
Fig. 8 is the case study on implementation sight spot distribution map in the inventive method.
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 present invention utilizes 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.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); Also having used simultaneously publication number is that CN102142215A, denomination of invention are some step in the patent application of " a kind of geography information adaptive voice explanation method of taking Position And Velocity into account ".
The concrete workflow (see figure 2) of the inventive method:
(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 buffering area 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;
(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 of the inventive method 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;
The flow process (see figure 4) is judged at the current explanation sight spot of the inventive method:
(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 of the inventive method effectively says solution path judgement flow process (see figure 5):
(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
, 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;
The solution path of effectively saying of the inventive method is judged the flow process (see figure 6):
(1) the traversal candidate effectively says solution path CSR; Calculate wherein coordinate points and the distance B is=< img TranNum=" 392 " file=" 190239DEST_PATH_IMAGE002.GIF " he=" 42 " img-content=" drawing " img-format=" jpg " inline=" no " orientation=" portrait " wi=" 193 "/> 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;
Effective explanation path of the inventive method is judged the flow process (see figure 7):
(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;
The embodiment (see figure 8):
The embodiment technology platform: the GIS module is carried out the secondary development completion based on the ArcGISMobile software of ESRI company; The GPS equipment of GPS acquisition module is the equipment that carries in the smart mobile phone; GPS interface in the ArcGIS Mobile software of use ESRI company drives this equipment; Thereby obtain information such as user's longitude and latitude coordinate and user movement speed, the phonetic synthesis module is used the speech synthesis engine and the interface thereof of Jie Tonghua sound company.
Fig. 8 is the sight spot distribution map 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 buffering area 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 according to the inventive method workflow step one, generate the sight spot Thiessen polygon, promptly the polygon around the sight spot among Fig. 8 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 (variable-definition is with reference to the prospectus of existing publication CN102142215A) 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.
If current explanation sight spot or current effective explanation path change in the guide interpreting process, carry out the step redirect according to method workflow related description of the present invention.
Claims (1)
1. one kind solves the speech sound eeplaining method that conflict is reported at the sight spot, it is characterized in that, may further comprise the steps:
Step 1: set the user who constitutes by a series of coordinate points and plan circuit; Promptly from the user movement starting point to the path the user movement terminal point, utilize the map projection of GIS module and coordinate transform function that the user is planned that the longitude and latitude coordinate transformation of coordinate points on the circuit is the coordinate in the specific map projection; Utilize the information such as coordinate, title, explanation text at each sight spot of data organization function storage of GIS module;
Step 2: adopt the Thiessen polygon method of formation, with the positional information generation sight spot Thiessen polygon set at each sight spot, the corresponding Thiessen polygon in each sight spot is effective explanation scope at this sight spot;
Step 3: the user is planned that the set of circuit and sight spot Thiessen polygon carries out intersection operation, obtain the candidate of planning circuit in effective explanation scope at each sight spot and effectively explain set of paths;
Step 4: utilize GPS to obtain user's current location information, obtain the current explanation of user sight spot according to the inclusion relation of user's current location information and the set of sight spot Thiessen polygon;
Step 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, form interim candidate and effectively explain set of paths with the sight spot at the current explanation of the user sight spot identical candidate of numbering;
Step 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 candidate and effectively say solution path;
Step 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 solution path;
Step 8:, calculate effectively explanation path based on effectively saying solution path and user's current location information; If effectively the explanation path is non-vanishing, change step 9; If equal zero, then carry out current explanation sight spot and judge relatively whether the current explanation of user sight spot is identical in the back, if the step 5 that forwards to inequality, otherwise repeating step eight;
Step 9: the current movement velocity of the user who utilizes GPS to obtain, effectively explain the speed of the synthetic literal of path and speech synthesis engine; Calculate effectively explanation word length; From the explanation text at current explanation sight spot, choose target explanation literal, realize speech conversion and output through speech synthesis engine and voice-output device smaller or equal to this length; Regularly carry out current explanation sight spot and judge,, then stop step 9, exported explanation section sequence number value and be made as 1, forward step 5 to if the numbering at current explanation sight spot changes; If the numbering at current explanation sight spot does not change, effectively explain path to judge that obtain comparing with current effective explanation path after new effective explanation path, if unequal, execution in step nine again; If the user selects to withdraw from the audio guide explanation, then forward step 10 to;
Step 10: finish.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110382770 CN102421061B (en) | 2011-11-28 | 2011-11-28 | Voice explanation method capable of solving conflict of scenic spot broadcast |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN 201110382770 CN102421061B (en) | 2011-11-28 | 2011-11-28 | Voice explanation method capable of solving conflict of scenic spot broadcast |
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