CN103376117B - A kind of information search method, system and GPS navigation server - Google Patents
A kind of information search method, system and GPS navigation server Download PDFInfo
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- CN103376117B CN103376117B CN201210126895.4A CN201210126895A CN103376117B CN 103376117 B CN103376117 B CN 103376117B CN 201210126895 A CN201210126895 A CN 201210126895A CN 103376117 B CN103376117 B CN 103376117B
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Abstract
The invention provides a kind of information search method, system and GPS navigation server, main contents are: GPS navigation server is receiving after the searching request information of client, current location according to client and travel condition determine the desired location of client, and the information with keyword match searched in the peripheral extent of described desired location is sent to client.Owing to the travel condition that described desired location is the current location according to client and client determines, therefore, the desired location that the embodiment of the present invention determines is in close proximity to location when user checks Search Results, for being in the user of moving scene, ensure that the information searched is the peripheral information of its actual position, improve the accuracy of peripheral information search, improve Consumer's Experience.
Description
Technical field
The present invention relates to field of navigation technology, particularly relate to a kind of information search method, system and global location
System (Global Position System, GPS) navigation server.
Background technology
Along with the development of airmanship, carry out daily people of information search by vehicle-mounted GPS navigator
Life plays the most important effect.General, the storage device of vehicle-mounted GPS navigator is deposited
Having map datum, map datum forms map image, described map datum on the display screen of such as touch screen
Include point of interest (Point of Interest, POI) data.Point of interest (Point of Interest, POI)
Information can be identified on map image, and can be entered by vehicle-mounted GPS navigator by user
Line search.
In prior art, user submits searching request by vehicle-mounted GPS navigator to GPS navigation server
Information, the user meeting searching request that vehicle-mounted GPS navigator display GPS navigation server returns is current
The POI of location periphery.
Concrete, the information search method that prior art provides comprises the following steps:
The first step: vehicle-mounted GPS navigator determines the current location information of user in real time.
Second step: vehicle-mounted GPS navigator receives the searching request information of user, described searching request information
In comprise keyword and hunting zone, described hunting zone is with user current location as the center of circle, sets with user
Fixed detection range is the border circular areas of diameter, or centered by user current location, with user's setting search
The rectangular area that distance is the length of side.
Concrete, user can be by the input port (input such as touch screen at vehicle-mounted GPS navigator
In frame) input keyword and detection range, then click on confirming button, by vehicle-mounted GPS navigator to
GPS navigation server submits searching request information to.
Described keyword can be the relevant information of POI, and described hunting zone represents that user is desired with information
Search and comprise the geographic range of user current location, as with user current location as the center of circle, a diameter of 500
The border circular areas of rice as hunting zone, or centered by current location, the length of side be the square of 2000 meters
Region is as hunting zone.
3rd step: vehicle-mounted GPS navigator sends searching request information to GPS navigation server.
4th step: the hunting zone that GPS navigation server carries according to searching request information, at this search model
Enclose the information of interior search and described keyword match.
Such as, user input keyword be " bank ", hunting zone be with user current location as the center of circle,
The border circular areas of a diameter of 500m, then GPS navigation server is with user current location as the center of circle, diameter
For in the border circular areas of 500m, search for the information mated with keyword " bank ".
5th step: vehicle-mounted GPS navigator receives the Search Results that GPS navigation server returns, and shows
To user.
Fig. 1 show employing existing information search method, and vehicle-mounted GPS navigator is shown to the search of user
As a result, Fig. 1 is shown that: at the circle centered by user's present position, with 1000m as radius
In shape region, the information that search is mated with keyword " coffee-house ", search the north in user current location
There is an ABC coffee-house in portion.
Under user is in static scene, user passes through vehicle-mounted GPS navigator to GPS navigation server
Initiate after searching request information, what GPS navigation server returned is letter that this user is presently in position periphery
Breath.But, when carrying out its position peripheral information search under user is at moving scene, due to vehicle-mounted
Are submitted to GPS navigation server by searching request information for GPS navigator and GPS navigation server is carried out
Search processes to be needed to expend certain duration, and for being in the user of moving scene, it checks Search Results
Position and the position initiating searching request information differ already, and what now GPS navigation server returned searches
Hitch fruit is not the most the information of user's currently true position periphery, but residing for user's a certain moment in the past
The peripheral information of position, therefore, existing information search method cannot be the user's search being in moving scene
The information of its actual position periphery, it is impossible to well meet the search need that user is actual.
Summary of the invention
The embodiment of the present invention provides a kind of information search method, system and GPS navigation server, to solve
Prior art cannot be that the user being in moving scene searches for its actual position peripheral information, it is impossible to very well
The problem meeting user's request.
A kind of information search method, described method includes:
Receive the searching request comprising client current location, travel condition and the keyword letter from client
Breath；
According to T expeced time, described client current location and the travel condition of storage, determine described client
The desired location of end；
In the peripheral extent of described desired location, search and the information of described keyword match；
Described client will be sent to the information of described keyword match.
A kind of GPS navigation server, described GPS navigation server includes:
Request receiver module, for receive from client comprise client current location, travel condition,
Searching request information with keyword；
Desired location determines module, for according to storage T expeced time, described client current location and
Travel condition determines the desired location of described client；
Search module, in the peripheral extent of described desired location, searches for and described keyword match
Information；
Sending module, for being just sent to described client with the information of described keyword match.
A kind of information search system, described system includes:
Client, for receiving the searching request information comprising keyword from user, reads self current
Position and travel condition information, and described current location and travel condition are carried in searching request information,
Be sent to global position system GPS navigation server, and receive that GPS navigation server sends with institute
State the information of keyword match；
GPS navigation server, comprises client current location, travel condition for receiving from client
With the searching request information of keyword, according to storage T expeced time, described client current location and row
Enter state, determine the desired location of described client, in the peripheral extent of described desired location, search with
The information of described keyword match, will be sent to described client with the information of described keyword match.
In the scheme of the embodiment of the present invention, GPS navigation server receive from client search please
After seeking information, determine the desired location of client, Jin Er according to the current location of client and travel condition
Search and the information of keyword match in the peripheral extent of described desired location.Owing to described desired location is root
Determining according to the current location of client and the travel condition of client, therefore, the embodiment of the present invention determines
Desired location is in close proximity to location when user checks Search Results, for being in the use of moving scene
Family, it is ensured that the information searched is the peripheral information of its actual position, improves peripheral information search
Accuracy, improve Consumer's Experience.
Accompanying drawing explanation
Fig. 1 is for using existing information search method, and vehicle-mounted GPS navigator is shown to the Search Results of user；
Fig. 2 is information search method schematic diagram in the embodiment of the present invention one；
Fig. 3 is the estimated result schematic diagram of desired location SP1 in the embodiment of the present invention one；
Fig. 4 is the estimated result schematic diagram of desired location SP2 in the embodiment of the present invention one；
Fig. 5 is the schematic diagram of the peripheral extent that GPS navigation server determines in the embodiment of the present invention one；
Fig. 6 is the schematic diagram of the peripheral extent that GPS navigation server determines in the embodiment of the present invention one；
Fig. 7 is the schematic diagram of the peripheral extent that GPS navigation server determines in the embodiment of the present invention one；
Fig. 8 is that in the embodiment of the present invention one, road shape is the schematic diagram of peripheral extent during straight line；
Fig. 9 is that in the embodiment of the present invention one, road shape is the schematic diagram of peripheral extent during curve；
Figure 10 is the schematic diagram of peripheral extent during hunting zone R1=0 in the embodiment of the present invention one；
Figure 11 is the schematic diagram of peripheral extent during hunting zone R2=0 in the embodiment of the present invention one；
Figure 12 is the schematic diagram of peripheral extent during hunting zone R3=0 in the embodiment of the present invention one；
Figure 13 is the schematic diagram of peripheral extent during hunting zone R4=0 in the embodiment of the present invention one；
Figure 14 is the structural representation of the GPS navigation server in the embodiment of the present invention two；
Figure 15 is the information search system structural representation in the embodiment of the present invention three.
Detailed description of the invention
When user is in moving scene, position when user initiates searching request with when checking Search Results
Position differs, and for realizing the purpose of the present invention, embodiments provides a kind of information search scheme,
GPS navigation server is receiving after the searching request information of client, according to the present bit of client
Put and determine the desired location of client with travel condition, and then search for the information of described desired location periphery.By
In the embodiment of the present invention, desired location is that the travel condition of the current location according to client and client is true
Fixed, therefore, the desired location that the embodiment of the present invention determines is in close proximity to user and checks Search Results time institute
The position at place, for being in the user of moving scene, it is ensured that the information searched is its actual position
Peripheral information, improve peripheral information search accuracy, improve Consumer's Experience.
Client involved in the embodiment of the present invention is not limited to vehicle-mounted GPS navigator, handhold GPS
Navigator, it is also possible to for having navigation and the mobile phone of information search function or other devices, for making the present invention real
The explanation executing example is clearer, and the embodiment of the present invention illustrates as a example by vehicle-mounted GPS navigator.
The solution of the present invention is described in detail below in conjunction with specific embodiment.
Embodiment one
As in figure 2 it is shown, be the information search method schematic diagram in the embodiment of the present invention one, described method includes
Following steps:
Step 101: vehicle-mounted GPS navigator receives the searching request information comprising keyword from user.
Concrete, user can be by the input port (input such as touch screen at vehicle-mounted GPS navigator
In frame) input keyword, then click on confirming button, submit searching request letter to vehicle-mounted GPS navigator
Breath.
Preferably, described searching request information can further include user's setting search distance, or,
Detection range in the direction of search and the corresponding direction of search, user can pass through the defeated of vehicle-mounted GPS navigator
Inbound port (in the input frame of touch screen) setting search distance and the direction of search.
Step 102: vehicle-mounted GPS navigator reads user current location and travel condition information, and by described
Current location and travel condition information are carried in the searching request information comprising keyword, are sent to GPS
Navigation server.
Vehicle-mounted GPS navigator (can pass through longitude and latitude parameter list with the current location of Real-time Collection user
Show) and the travel condition information of such as current gait of march, current time, driving path etc., it is also possible to logical
Cross Peripheral Interface and receive the travel condition information using other equipment to gather, such as, receive top by Peripheral Interface
The current driving velocity information that spiral shell instrument gathers.Vehicle-mounted GPS navigator comprises pass from user receiving
During the searching request information of key word, read up-to-date current location and travel condition information, and by described currently
Position and travel condition are carried in searching request information, are sent to GPS navigation server.
Vehicle-mounted GPS navigator, when sending searching request, is searching request to be believed according to given protocol specification
Breath is packaged into packet and sends, and described packet arrives GPS navigation server via communication network,
Described given protocol refers to the protocol specification that client and server is appointed.When being embodied as, it is possible to use
JSON (JavaScript Object Notation) string carries out the assembling of agreement, namely representing searching request
The character string of information is put in JSON string and is sent to GPS navigation server.
Step 103:GPS navigation server is according to T expeced time, described current location and the traveling of storage
State, determines the desired location of described client.
Described expeced time, T was stored in GPS navigation server, can reflect vehicle-mounted GPS navigator
Submit to searching request information to GPS navigation server, GPS navigation server search and by Search Results
It is sent to the total time-consuming of vehicle-mounted GPS navigator, say, that can reflect that user is from submitting searching request information to
The duration that Search Results is experienced can be checked to user.
Preferably, it is contemplated that the network that vehicle-mounted GPS navigator submits to searching request information to be used is different,
Submit the time-consuming corresponding the most different of searching request information to, therefore, GPS navigation server receive search please
When seeking information, first judge that car borne GPS navigation server submits the network that searching request information is used, root to
According to the corresponding relation of locally stored network Yu expeced time, determine accordingly for this vehicle-mounted GPS navigator
Expeced time, T, wherein, submitted to the network transfer speeds that used of searching request information the highest, and corresponding is pre-
Time phase, T was the least.
Such as: if GPS navigation server judges car borne GPS navigation, searching request information submitted to by service instrument
The network used is WiMAX (Wireless Fidelity, Wi-Fi), it is determined that go out expeced time T relatively
Little, if judging, the network that car borne GPS navigation server submits to searching request information to be used is general point
Group wireless service (General Packet Radio Service, GPRS) network, it is determined that the expeced time gone out
T is bigger.
Specifically, in the scheme of the present embodiment, include but not limited to that following two determines the side of desired location
Formula:
Mode one: described in enter state and include: current gait of march V of client, direct of travel D, described
Direct of travel D be on travel path pointed by tangent line with client current location as point of contact and client
In the direction that the angle of subsequent time traffic direction is less than 90 degree, GPS navigation server is pre-according to storage
Time phase T, described current location and travel condition determine that the desired location of described client can be by following
Method realizes:
The first step, by described gait of march V and expeced time T-phase multiplied to expection shift length L.
Second step, by along described direct of travel D with the position that spacing is L of client current location,
Desired location as client.
Below by Fig. 3 to above-mentioned the first determine that the mode of desired location of client illustrates.
The current location assuming client is CP1 as shown in Figure 3, the expection shift length obtained after V*T
For L as shown in Figure 3, the desired location of the client that GPS navigation server determines is expert at the most in figure 3
Entering distance CP1 on the D of direction is at the SP1 of L.In fig. 3, it can be seen that SP1 point does not has
On the travel path S of client, but it is straight line in view of in most cases road, desired location is selected
At SP1 point, as user, approximation sees that location point during Search Results is rational；Certainly, when traveling road
When footpath S is straight line, on direct of travel D, distance CP1 is that the SP1 of L can fall on travel path S.
Mode two: described travel condition includes: current gait of march V of client, travel path (namely
Route that user travels or the navigation way of planning) D and T expeced time, according to client current location and
Travel condition determines that the desired location of client can be realized by the following method:
The first step: by described gait of march V and expeced time T-phase multiplied to expection shift length L；
Second step: by the position that spacing is L with current location on described travel path, as described visitor
The desired location of family end.
Below by Fig. 4, above-mentioned the second being determined, the mode of the desired location of client illustrates.
The current location assuming client is CP2 as shown in Figure 4, the expection shift length obtained after V*T
L as shown in Figure 4, the client desired location that GPS navigation server determines the most in the diagram is along advancing
On the S of path with CP2 distance for the SP2 of L at, between CP2 and SP2, the distance along travel path is
L.In fig. 4, it can be seen that SP2 point is to fall on the driving path S of client, now user from
The distance that current location marches to desired location process is identical with L, and this just considers active user's traveling process
In road shape or the navigation circuit shape of planning so that desired location more conforms to the actual feelings of user
Condition.
It should be noted that when travel route is straight line, above two determines in the mode of desired location really
The desired location made is the same, and the desired location determined all falls within driving path.
Step 104:GPS navigation server, in the peripheral extent of described preset position, is searched for and described pass
The information of key word coupling.
Information with described keyword match is sent to vehicle GPS and leads by step 105:GPS navigation server
Boat instrument.
By above-mentioned steps, owing to GPS navigation server is according to the current location of client and travel condition
The desired location of user is determined, therefore the expection in the Search Results of vehicle-mounted GPS navigator displaying
When position and user see Search Results the position at place closer to, accordingly, on the basis of desired location
Search Results accurate can reflect being actually needed of user, overcomes and inquires about time institute in existing scheme with user
Position on the basis of the problem of hysteresis quality that has of Search Results.
In the scheme of the present embodiment one, the peripheral extent of described desired location has three kinds to determine mode:
First kind of way, carries the detection range that user sets further in described searching request information, described
Desired location peripheral extent is centered by described desired location, the detection range set with user as diameter or
The border circular areas of radius, or centered by described desired location, the detection range set with user is as the length of side
Rectangular area, or comprise the irregular area of described desired location.This mode GPS navigation takes
Business device has only to centered by desired location, the detection range set in searching request information as radius, directly
Scan in footpath or elongated scope.
The second way, described desired location peripheral extent needs by GPS navigation server basis further
The keyword carried in searching request information and travel condition information, determine according to default rule.Such as,
User travels on a highway, and keyword is " gas station ", owing to highway belongs to blocked road,
The gas station of search user's direction of advance side is the most meaningful for user, therefore, and described desired location
In the range of peripheral extent can only be set as user's direction of advance side.
The third mode, it is contemplated that (such as travel on a highway) in the actual traveling process of user, uses
POI when position, family is reflected on map, in this peripheral region, position, in some subregion possible
Information is not the most worth for this user.Such as, user travels when needing on a highway to navigate,
The restaurant passed by, gas station etc. are not the most worth for this user, therefore, search for need meeting user
In the case of asking, in order to reduce hunting zone, improve search efficiency, can be further in searching request information
Carrying the direction of search that user sets and the detection range set according to the direction of search, GPS navigation server needs
To determine for carrying out week further according to the detection range information on desired location, preset search direction
The region of limit search.In order to reduce hunting zone, improve search efficiency, can by arrange different directions with
And length, region nugatory for user is not scanned for, and only region valuable to user is entered
Line search.
User can input it by the input port (such as the input frame of touch screen) of vehicle-mounted GPS navigator
Wishing direction and the value of all directions detection range of search, vehicle-mounted GPS navigator will carry user again and work as
The searching request information of front position, the direction of search, detection range information and keyword is sent to GPS navigation
Server.
In the case of the third, GPS navigation server, after receiving searching request information, needs further root
It is anticipated that position, the described direction of search and the value of all directions detection range, determine the surrounding zone of desired location
Territory, and in this region, described keyword is scanned for.
Preferably, the described direction of search is respectively as follows: the front of client, rear, left, right, each
The detection range information in direction is respectively as follows: R1, R2, R3, R4, according to described desired location and each side
Detection range information upwards, determines the neighboring area of desired location, specifically includes:
With desired location as starting point, obtain respectively:
Client front is reference point A of R1 apart from described desired location；
Client rear is reference point B of R2 apart from described desired location；
Client left is the reference Point C of R3 apart from described desired location；
Client right is reference point D of R4 apart from described desired location；
Peripheral extent with described reference point A, reference point B, reference Point C and reference point D as desired location
Boundary reference point, determine the peripheral extent of desired location.
The peripheral extent determined GPS navigation server below is illustrated.
Assuming that user travels on travel path S1, comprise in the searching request information that client is submitted to searches
Suo Fangxiang and the detection range information corresponding with the direction of search is: with described desired location respectively front, after
Range information R1, R2, R3, R4 on side, left, right four direction, GPS navigation server is true
Fixed desired location is the SP3 point on described travel path S1, then the expection that GPS navigation server determines
The peripheral extent of position can be as shown in Figure 5: with desired location SP3 for coordinate axes initial point, X-axis is just
To pointed by tangent line with client desired location as point of contact on travel path S1 with client at next
The angle of moment traffic direction is less than the direction of 90 degree, and using X-axis direction as the front of client,
X-axis negative sense direction is as the rear of client, and Y-axis direction is as the left of client, Y-axis negative sense
Direction is as the right of client, and reference point A, reference point B, reference Point C and the distribution of reference point D
Edge in described peripheral extent；
Can also be as shown in Figure 6: with desired location SP3 for coordinate axes initial point, X-axis is arbitrarily set
The direction of forward, after arranging X-axis direction, and then determines Y-axis, using X-axis direction as visitor
The front of family end, X-axis negative sense direction is as the rear of client, and Y-axis direction is as a left side for client
Side, Y-axis negative sense direction as the right of client, and reference point A, reference point B, reference Point C and
Reference point D is distributed in the edge of described peripheral extent；
Can also is that as shown in Figure 7: using the front of desired location as the front of client, described expection position
The front put is along travel path S1, using the rear of desired location as the rear of client, described pre-
The rear of phase position is reversely along travel path S1；Will with on travel path S1 desired location everything
The tangent line of point hangs down the left as client, the rectilinear top, will with on travel path S1 expection position
Put the tangent line at this point of contact to hang down the right as client, the rectilinear lower section, and reference point A, reference
Point B, reference Point C and reference point D are distributed in the edge of described peripheral extent.
The direction of the setting in above-mentioned hunting zone is also not necessarily limited to all around, it is also possible to for all directions, if
It is set as 4 directions, south, thing north, a length of R1, R2, R3 and R4 that each direction sets, vacation
If user travels on the highway in north-south, and road shape is straight line, then GPS navigation server
The peripheral extent of the desired location determined can be as shown in Figure 8: with the desired location (black in Fig. 8
Solid dot) on the basis of, the length of side is R3+R4 and parallel with road, the another side length of side be R1+R2 and
The straight line vertical with road, the rectangular area constituted；When road is shaped as curve, for the district of search
Territory can be as shown in Figure 9: on the basis of desired location, the curve that the length of side is identical with road shape,
The another side length of side is R1+R2 and the closed area of the straight line vertical with road composition.
Distinguishingly:
1) as R1=0, if road shape is straight line, it is determined that the peripheral extent of desired location be such as figure
Rectangular area shown in 10, this rectangular area one length of side is R2, a length of R3+R4 of another side, represents user
Merely desire to obtain the POI on the road direction left side.
2) as R2=0, if road shape is straight line, it is determined that the peripheral extent of desired location be such as figure
Rectangular area shown in 11, this rectangular area one length of side is R1, a length of R3+R4 of another side, represents user
Merely desire to obtain the POI on the right of road direction.
3) as R3=0, if road shape is straight line, it is determined that the peripheral extent of desired location be such as figure
Rectangular area shown in 12, this rectangular area one length of side is R4, a length of R1+R2 of another side, represents user
Merely desire to obtain the POI at road direction rear.
4) as R4=0, if road shape is straight line, it is determined that the peripheral extent of desired location be such as figure
Rectangular area shown in 13, this rectangular area one length of side is R3, a length of R1+R2 of another side, represents user
Merely desire to obtain the POI in road direction front.
By such scheme, Search Results can be made to reflect the actual search demand of user exactly, such as,
Certain user just travels on the highway of form of straight lines toward north from south, if desired passes through car borne GPS navigation
Instrument find gas station, then for this user, on the left of highway and rear side relevant gas station information also
Not the biggest value, and the information of the relevant gas station on highway front and the right has bigger valency to it
Value, therefore, user can by input the direction of search on detection range information, and then GPS navigation clothes
Business device can determine the week of desired location according to the detection range information in desired location and the described direction of search
Limit scope, further, the direction of search can be that GPS navigation server determines, it is also possible to is user
Determining, if the direction of search is GPS navigation, server determines, then user only need to be at car borne GPS navigation
Input the distance in the direction of search in the input port of instrument, determine if the direction of search is user, then user can
The range information in the direction of search and the direction of search is inputted in the input interface of vehicle-mounted GPS navigator.This
Sample, on the one hand can reduce the peripheral extent of GPS navigation server search, improve search efficiency, the opposing party
Face is used as family and finds relevant fuel station information according to Search Results quickly.
Preferably, in this step 104, if GPS navigation server is determining according to searching request information
Preset position peripheral extent in do not search described keyword, then can utilize the field of search of local setting
Territory expands rule, is enlarged described region of search, and to described key in the region of search after expansion
Word scans for.Such as: assume GPS navigation server with desired location as the center of circle, a diameter of 1000
Do not search keyword in the circular periphery region of rice, then GPS navigation server can be by region of search
Expand as with desired location as the center of circle, the border circular areas of a diameter of 1200 meters.
Embodiment two
Based on the same design with embodiment one, the embodiment of the present invention two proposes a kind of GPS navigation server,
As shown in figure 14, described GPS navigation server includes: receiver module 11, desired location determine module 12,
Search module 13 and sending module 14, wherein:
Receiver module 11, for receive from client comprise client current location, travel condition and
The searching request information of keyword.
Desired location determines module 12, for receiving the searching request from client at receiver module 11
After information, determine described client according to T expeced time, described current location and the travel condition of storage
Desired location.
Search module 13, in the peripheral extent of described desired location, searches for and described keyword match
Information.
Sending module 14, for being sent to described client with the information of described keyword match.
Preferably, described travel condition includes: gait of march V that client is current and direct of travel D, institute
State direct of travel D be on travel path pointed by tangent line with client current location as point of contact and client
Hold the angle at subsequent time traffic direction less than the direction of 90 degree；
Described desired location determines module 12, specifically for will be along described direct of travel D and current location
The position that spacing is L, as the desired location of described client, described L=V*T.
Preferably, described travel condition includes: gait of march V that client is current and travel path；
Described desired location determines module 12, specifically for will be along described travel path and between current location
The position that distance is L, as the desired location of described client, described L=V*T.
Preferably, described searching request information carries the direction of search and the Search Length corresponding with the direction of search
From information, described GPS navigation server farther includes:
Peripheral extent determines module 15, for according to described desired location, the direction of search and with the direction of search pair
The detection range information answered, determines the peripheral extent of described desired location.
Preferably, the described direction of search is respectively as follows: the front of client, rear, left, right, and often
Detection range information corresponding to individual direction is respectively as follows: R1, R2, R3, R4；
Described peripheral extent determines module 15, specifically for desired location as starting point, obtains respectively: client
End front is reference point A of R1 apart from described desired location, and client rear apart from described desired location is
Reference point B of R2, client left is the reference Point C of R3 apart from described desired location, client right
It is reference point D of R4 apart from described desired location, and with described reference point A, reference point B, reference point
C and the boundary reference point of peripheral extent that reference point D is desired location, determine the peripheral extent of desired location.
Embodiment three
Based on the same design with embodiment one, the embodiment of the present invention three proposes a kind of information search system, as
Shown in Figure 15, described system includes: client 21 and GPS navigation server 22, wherein:
Client 21, for receiving the searching request information comprising keyword from user, reads self and works as
Front position and travel condition information, and described current location and travel condition are carried in searching request information
In, it is sent to GPS navigation server, and it is that send with described keyword to receive GPS navigation server
The information of coupling.
GPS navigation server 22, comprises client current location, traveling for receiving from client
The searching request information of state and keyword, according to T expeced time, the described client current location of storage
And travel condition, determine the desired location of described client, in the peripheral extent of described desired location, search
Rope and the information of described keyword match, will be sent to described client with the information of described keyword match.
Wherein, the specific implementation of described GPS navigation server 22 refers to relevant portion above, this
Place repeats no more.
Those skilled in the art are it should be appreciated that embodiments herein can be provided as method, system or meter
Calculation machine program product.Therefore, the application can use complete hardware embodiment, complete software implementation or knot
The form of the embodiment in terms of conjunction software and hardware.And, the application can use and wherein wrap one or more
Computer-usable storage medium containing computer usable program code (include but not limited to disk memory,
CD-ROM, optical memory etc.) form of the upper computer program implemented.
The application is with reference to method, equipment (system) and the computer program product according to the embodiment of the present application
The flow chart of product and/or block diagram describe.It should be understood that can by computer program instructions flowchart and
/ or block diagram in each flow process and/or flow process in square frame and flow chart and/or block diagram and/
Or the combination of square frame.These computer program instructions can be provided to general purpose computer, special-purpose computer, embedding
The processor of formula datatron or other programmable data processing device is to produce a machine so that by calculating
The instruction that the processor of machine or other programmable data processing device performs produces for realizing at flow chart one
The device of the function specified in individual flow process or multiple flow process and/or one square frame of block diagram or multiple square frame.
These computer program instructions may be alternatively stored in and computer or the process of other programmable datas can be guided to set
In the standby computer-readable memory worked in a specific way so that be stored in this computer-readable memory
Instruction produce and include the manufacture of command device, this command device realizes in one flow process or multiple of flow chart
The function specified in flow process and/or one square frame of block diagram or multiple square frame.
These computer program instructions also can be loaded in computer or other programmable data processing device, makes
Sequence of operations step must be performed to produce computer implemented place on computer or other programmable devices
Reason, thus the instruction performed on computer or other programmable devices provides for realizing flow chart one
The step of the function specified in flow process or multiple flow process and/or one square frame of block diagram or multiple square frame.
Although having been described for the preferred embodiment of the application, but those skilled in the art once knowing base
This creativeness concept, then can make other change and amendment to these embodiments.So, appended right is wanted
Ask and be intended to be construed to include preferred embodiment and fall into all changes and the amendment of the application scope.
Obviously, those skilled in the art can carry out various change and modification without deviating from this to the present invention
Bright spirit and scope.So, if the present invention these amendment and modification belong to the claims in the present invention and
Within the scope of its equivalent technologies, then the present invention is also intended to comprise these change and modification.
Claims (7)
1. an information search method, it is characterised in that described method includes:
Receive the searching request comprising client current location, travel condition and the keyword letter from client
Breath；
According to T expeced time, described client current location and travel condition, determine the pre-of described client
Phase position；
In the peripheral extent of described desired location, search and the information of described keyword match；
Described client will be sent to the information of described keyword match；
Wherein, T described expeced time determines in the following manner:
After receiving described searching request information, it is judged that client submits to described searching request information to be used
Network, according to the corresponding relation of locally stored network Yu expeced time, determines corresponding pre-for this client
Time phase T, wherein, the network transfer speeds submitting to searching request information to be used is the highest, corresponding expection
Time, T was the least；
Described travel condition includes: gait of march V that client is current and direct of travel D, described traveling side
To D be on travel path pointed by tangent line with client current location as point of contact with client at next
The angle of the moment traffic direction direction less than 90 degree；
According to T expeced time, described client current location and the travel condition of storage, determine described client
The desired location of end, specifically includes: will be along described direct of travel D along and the spacing of current location is L
Position, as the desired location of described client, described L=V*T；
Or,
Described travel condition includes: gait of march V that client is current and travel path；
T expeced time, described client current location and travel condition according to storage determine described client
Desired location, specifically include: by the position that spacing is L with current location on described travel path,
As the desired location of described client, described L=V*T.
2. the method for claim 1, it is characterised in that carry in described searching request information
The direction of search and the detection range information corresponding with the direction of search, described method farther includes:
According to described desired location, the direction of search and the detection range information corresponding with the direction of search, determine institute
State the peripheral extent of desired location.
3. method as claimed in claim 2, it is characterised in that the described direction of search is respectively as follows: client
End front, rear, left, right, the detection range information corresponding with the direction of search be respectively as follows: R1,
R2, R3, R4, according to described desired location, the direction of search and the detection range corresponding with direction of search letter
Breath, determines that the peripheral extent of described desired location specifically includes:
With desired location as starting point, obtain respectively:
Client front is reference point A of R1 apart from described desired location；
Client rear is reference point B of R2 apart from described desired location；
Client left is the reference Point C of R3 apart from described desired location；
Client right is reference point D of R4 apart from described desired location；
Peripheral extent with described reference point A, reference point B, reference Point C and reference point D as desired location
Boundary reference point, determine the peripheral extent of desired location.
4. a global position system GPS navigation server, it is characterised in that described GPS navigation service
Device includes:
Receiver module, comprises client current location, travel condition and key for receiving from client
The searching request information of word；
Desired location determines module, for according to T expeced time, described client current location and traveling shape
State determines the desired location of described client, and described expeced time, T determined in the following manner: receive institute
After stating searching request information, it is judged that client submits the network that described searching request information is used to, according to this
The corresponding relation of network and the expeced time of ground storage, determines T corresponding expeced time for this client, its
In, the network transfer speeds submitting to searching request information to be used is the highest, and corresponding T expeced time is the least；
Search module, in the peripheral extent of described desired location, searches for and described keyword match
Information；
Sending module, for being sent to described client with the information of described keyword match；
Described travel condition includes: gait of march V that client is current and direct of travel D, described traveling side
To D be on travel path pointed by tangent line with client current location as point of contact with client at next
The angle of the moment traffic direction direction less than 90 degree；
Described desired location determines module, specifically for will be along described direct of travel D and between current location
The position that distance is L, as the desired location of described client, described L=V*T；
Or,
Described travel condition includes: gait of march V that client is current and travel path；
Described desired location determines module, specifically for by spacing with current location on described travel path
For the position of L, as the desired location of described client, described L=V*T.
5. GPS navigation server as claimed in claim 4, it is characterised in that described searching request is believed
Breath carries the direction of search and the detection range information corresponding with the direction of search；Described GPS navigation service
Device farther includes:
Peripheral extent determines module, for according to described desired location, the direction of search and corresponding with the direction of search
Detection range information, determine the peripheral extent of described desired location.
6. GPS navigation server as claimed in claim 5, it is characterised in that the described direction of search is divided
It is not: the front of client, rear, left, right that the detection range information corresponding with the direction of search is divided
It is not: R1, R2, R3, R4；
Described peripheral extent determines module, specifically for desired location as starting point, obtains respectively: client
Front is reference point A of R1 apart from described desired location, and client rear is R2 apart from described desired location
Reference point B, client left is the reference Point C of R3 apart from described desired location, client right away from
It is reference point D of R4 from described desired location, and with described reference point A, reference point B, reference Point C
With the boundary reference point of the peripheral extent that reference point D is desired location, determine the peripheral extent of desired location.
7. an information search system, it is characterised in that described system includes:
Client, for receiving the searching request information comprising keyword from user, reads self current
Position and travel condition information, and described current location and travel condition are carried in searching request information,
Be sent to global position system GPS navigation server, and receive that GPS navigation server sends with institute
State the information of keyword match；
GPS navigation server, comprises client current location, travel condition for receiving from client
With the searching request information of keyword, according to T expeced time, described client current location and travel condition,
Determine the desired location of described client, in the peripheral extent of described desired location, search and described key
The information of word coupling, will be sent to described client, described expeced time with the information of described keyword match
T determines in the following manner: after receiving described searching request information, it is judged that client submits described search to
The network that solicited message is used, according to the corresponding relation of locally stored network Yu expeced time, for this visitor
Family end determines T corresponding expeced time, wherein, submits the network transfer speeds that searching request information is used to
The highest, corresponding T expeced time is the least；Described travel condition includes: gait of march V that client is current
It is the tangent line on travel path with client current location as point of contact with direct of travel D, described direct of travel D
Pointed with client in direction less than 90 degree of the angle of subsequent time traffic direction；According to storage
Expeced time T, described client current location and travel condition, determine the desired location of described client,
Specifically include: by along described direct of travel D with the position that spacing is L of current location, as institute
State the desired location of client, described L=V*T；Or, described travel condition includes: client is current
Gait of march V and travel path；T expeced time, described client current location and traveling according to storage
State determines the desired location of described client, specifically includes: by described travel path with current location it
Spacing is the position of L, as the desired location of described client, described L=V*T.
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| CN104811898B (en) * | 2014-01-23 | 2019-11-19 | 腾讯科技（深圳）有限公司 | A kind of method of acquisition of information, server, terminal and system |
| CN104410717A (en) * | 2014-12-18 | 2015-03-11 | 百度在线网络技术（北京）有限公司 | Information pushing method and device |
| CN106850709B (en) * | 2015-12-03 | 2018-12-07 | 腾讯科技（深圳）有限公司 | A kind of road condition data loading method and device |
| CN106895847A (en) * | 2015-12-17 | 2017-06-27 | 大陆汽车投资（上海）有限公司 | A kind of air navigation aid smeared based on map and guider |
| CN105890608B (en) * | 2016-03-31 | 2020-08-21 | 百度在线网络技术（北京）有限公司 | Navigation reference point determining method and device and navigation method and device |
| CN107402966A (en) * | 2017-06-23 | 2017-11-28 | 口碑控股有限公司 | The computational methods and device and electronic equipment of hunting zone |
| CN107315821B (en) * | 2017-07-04 | 2021-08-27 | 深圳齐心集团股份有限公司 | Big data calling system based on cloud computing |
| CN109471983A (en) * | 2017-09-08 | 2019-03-15 | 北京京东尚科信息技术有限公司 | Information output method and device |
| CN108763264B (en) * | 2018-03-30 | 2022-06-17 | 斑马网络技术有限公司 | Intelligent search system based on vehicle and search method thereof |
| CN112445964A (en) * | 2019-08-29 | 2021-03-05 | 深圳富泰宏精密工业有限公司 | Information sharing method and server |
| CN113112626B (en) * | 2021-04-01 | 2022-05-10 | 广东诚泰交通科技发展有限公司 | Highway toll information acquisition system |
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| FR2867271A1 (en) * | 2004-03-08 | 2005-09-09 | France Telecom | Terrestrial vehicle guiding process for terrestrial guidance and road navigation system, involves calculating to and fro latency between vehicle and external navigation server, and estimating distance covered by vehicle |
| JP4743200B2 (en) * | 2005-01-25 | 2011-08-10 | パナソニック株式会社 | Communication terminal, terminal switching system, and terminal switching method |
| CN101046383B (en) * | 2007-04-27 | 2010-11-10 | 江苏华科导航科技有限公司 | Method for navigation instrument to search interest points along guide path during navigation |
| US8751146B2 (en) * | 2007-08-30 | 2014-06-10 | Telenav, Inc. | Navigation system having location based service and temporal management |
| CN101294818B (en) * | 2008-04-24 | 2011-09-21 | 深圳市凯立德科技股份有限公司 | Method for searching interest point along guiding route and navigation system adopting the same |
| US20100305842A1 (en) * | 2009-05-27 | 2010-12-02 | Alpine Electronics, Inc. | METHOD AND APPARATUS TO FILTER AND DISPLAY ONLY POIs CLOSEST TO A ROUTE |
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