CN105589868A - Target track query method and device - Google Patents
Target track query method and device Download PDFInfo
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- CN105589868A CN105589868A CN201410567473.XA CN201410567473A CN105589868A CN 105589868 A CN105589868 A CN 105589868A CN 201410567473 A CN201410567473 A CN 201410567473A CN 105589868 A CN105589868 A CN 105589868A
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Abstract
The invention relates to the field of communication, and discloses a target track query method and device which is used for simplifying user operation and improving system performance. The method comprises the following steps of acquiring N track points backtracking to a current moment with regard to a target for displaying by a background server according to a received target query instruction; further displaying an operation interface for representing a query range; further detecting a dragging track of a user with regard to the operation interface; determining the query range appointed by the user according to a mapping relation between a predetermined dragging track and the query range; and acquiring a corresponding track point for display according to the query range. Therefore, in a geographic information system, the user query operation can be simplified, the target track is simply and accurately displayed, moreover, the track trend can be dynamically analyzed, the movement condition of the target at a certain moment and in a certain space is analyzed, the status of the target is further judged, and the system performance is improved.
Description
Technical field
The present invention relates to the communications field, particularly a kind of querying method of target trajectory and device.
Background technology
Geographic information computer system (GeographicInformationSystem, GIS) be a kind of based onThe instrument of computer, for spatial information is analyzed and processed, GIS technology is this uniqueness of mapVisualization effect and geography-analysis function and general database manipulation integrate. GIS is to spatial informationStorage administration analysis, make its in the public and individual enterprises and institutions widely interpretation time, predict the outcome,In plan strategy etc., there is practical value.
In GIS, for the inquiry of target trajectory, method conventional in prior art is: first at electronicsSelect target on map, then according to the tracing point of the position render target motion of select target, and by each trackPoint connects into target trajectory with line. At present initial conditions when query aim track generally: Target id number(such as license plate number, policeman wail etc.), time started, end time or (with) defined area scope,The mode that this regional extent delimited can be selected to draw and be selected rectangle frame, circular frame, polygon frame etc.
Prior art to the querying method of target trajectory under, user can input multiple queries condition, causes behaviourDo loaded down with trivial details; For example, and the result of inquiring about according to current initial conditions is indefinite: user expects to look intoAsk nearest 50 tracing points of target (for example vehicle), but according to the inquiry of current initial conditions gainedThe possibility of result is thousands of tracing points, the track that the redundancy track that inquiry obtains like this can will be paid close attention to userProduce and disturb, show in a jumble, be difficult to obtain a briefly track clearly, thus cannot display-object sailCarry out direction. The result of above-mentioned fuzzy query can cause user again to change querying condition, causes like this inquiry effectRate reduces.
Summary of the invention
The embodiment of the present invention provides a kind of querying method and device of target trajectory, in order in GIS-Geographic Information SystemIn, simplify user's operation, improve systematic function.
The concrete technical scheme that the embodiment of the present invention provides is as follows:
A querying method for target trajectory, comprising:
Background server is according to the target query instruction receiving, the N recalling from current time for Target AcquisitionIndividual tracing point also presents, and further presents the operation interface for characterizing query context;
Background server further detects the drag track of user for described operation interface, and according to defaultDrag the mapping relations of track and query context, determine the query context that user specifies, and look into according to describedInquiry scope is obtained corresponding tracing point and is presented.
Like this, in GIS-Geographic Information System, can simplify user's query manipulation, simple and direct, show order accuratelyTarget track, and can dynamic analysis track trend, thereby evaluating objects is transporting sometime with in spaceEmotionally condition, and then target is carried out to condition judgement, improve systematic function.
Preferably, background server according to receive target query instruction, for Target Acquisition from current timeThe N a recalling tracing point also presents, and comprising:
Background server, for target query instruction, presents N the track of recalling from current time accordinglyPoint; Wherein, presenting in the process of N tracing point, set coordinate model at described N tracing point peripheryIn enclosing, present successively the geographical element of appointment according to default priority.
Like this, avoid the each inquiry of user to repeat input operation, by the ginseng setting in advance in templateNumber, just can only need a simple operations, just can screen rapidly and present the geographical element of periphery.
Preferably, background server further presents the operation interface for characterizing query context, comprising:
Further present for characterizing time inquiring scope or/and the operation interface of geographic query scope.
Like this, user can adjust presented tracing point neatly according to self-demand.
Preferably, background server further detects the drag track of user for described operation interface, and pressesAccording to the default mapping relations between track and query context that drag, determine the query context that user specifies, withAnd obtain corresponding tracing point according to described query context and present, comprising:
Background server determines that a described N tracing point comprises track corresponding to described user's given query scopePoint, continues to present the tracing point that comprises part, and hides the tracing point that does not comprise part; Or,
Background server determines that tracing point corresponding to described user's given query scope comprises a described N trackPoint, continues to present a described N tracing point, and obtain do not comprise part tracing point present; Or,
Background server is determined tracing point and the described N tracing point that described user's given query scope is correspondingBetween there is lap, continue to present tracing point the cache of lap in a described N tracing pointState the tracing point of non-overlapped part in N tracing point, and it is corresponding to obtain described user's given query scopeIn tracing point with the tracing point of described N the underlapped part of tracing point and present; Or,
Background server is determined tracing point and the described N tracing point that described user's given query scope is correspondingZero lap part, hide a described N tracing point, and it is corresponding to obtain described user's given query scopeTracing point also presents.
Like this, by simple drag operation, the tracing point that dynamically additions and deletions, aobvious hidden user pay close attention to.
Preferably, background server further detects the drag track of user for described operation interface, and pressesAccording to the default mapping relations between track and query context that drag, determine the query context that user specifies, withAnd obtain corresponding tracing point according to described query context and present, further comprise:
Background server present or the process of hiding tracing point in, correspondence presents or hides described tracing point weekThe geographical element in coordinate range is set on limit.
Like this, simplify user's operating procedure, simple and direct, generate user fast and pay close attention to target trajectory peripheryGeographical element.
An inquiry unit for target trajectory, comprising:
The first query unit, for according to receive target query instruction, for Target Acquisition from current timeThe N a recalling tracing point also presents, and further present operation circle for characterizing query contextFace;
The second query unit, for further detecting the drag track of user for described operation interface, and pressesAccording to the default mapping relations that drag track and query context, determine the query context that user specifies, and pressObtaining corresponding tracing point according to described query context presents.
Like this, in GIS-Geographic Information System, can simplify user's query manipulation, simple and direct, show order accuratelyTarget track, and can dynamic analysis track trend, thereby evaluating objects is transporting sometime with in spaceEmotionally condition, and then target is carried out to condition judgement, improve systematic function.
Preferably, according to the target query instruction receiving, the N recalling from current time for Target AcquisitionTracing point while presenting, described the first query unit specifically for:
For target query instruction, present N the tracing point of recalling from current time accordingly; Wherein, existPresent in the process of N tracing point, in described N tracing point periphery set coordinate range, according in advanceIf priority present successively the geographical element of appointment.
Like this, avoid the each inquiry of user to repeat input operation, by the ginseng setting in advance in templateNumber, just can only need a simple operations, just can screen rapidly and present the geographical element of periphery.
Preferably, when background server further presents the operation interface for characterizing query context, describedOne query unit is further used for:
Further present for characterizing time inquiring scope or/and the operation interface of geographic query scope.
Like this, user can adjust presented tracing point neatly according to self-demand.
Preferably, background server further detects the drag track of user for described operation interface, and pressesAccording to the default mapping relations between track and query context that drag, determine the query context that user specifies, withAnd obtain corresponding tracing point according to described query context and be now, described the second query unit is specifically usedIn:
Determine that a described N tracing point comprises tracing point corresponding to described user's given query scope, continues to beNow comprise the tracing point of part, and hide the tracing point that does not comprise part; Or,
Determine that tracing point corresponding to described user's given query scope comprises a described N tracing point, continues to beAn existing described N tracing point, and obtain and do not comprise tracing point partly and present; Or,
Determine between tracing point that described user's given query scope is corresponding and a described N tracing point, exist heavyFolded part, continues to present the tracing point of lap in a described N tracing point and hides a described N railThe tracing point of non-overlapped part in mark point, and obtain in tracing point corresponding to described user's given query scopeWith the tracing point of described N the underlapped part of tracing point and present; Or,
Determine tracing point and described N tracing point zero lap part that described user's given query scope is corresponding,Hide a described N tracing point, and obtain tracing point corresponding to described user's given query scope and carry outPresent.
Like this, by simple drag operation, the tracing point that dynamically additions and deletions, aobvious hidden user pay close attention to.
Preferably, described the second query unit is further used for:
Background server present or the process of hiding tracing point in, correspondence presents or hides described tracing point weekThe geographical element in coordinate range is set on limit.
Like this, simplify user's operating procedure, simple and direct, generate user fast and pay close attention to target trajectory peripheryGeographical element.
Brief description of the drawings
Fig. 1 is target trajectory querying flow figure in the embodiment of the present invention;
Fig. 2 A is the operation interface that characterizes time inquiring scope in the embodiment of the present invention;
Fig. 2 B and Fig. 2 C are the operation interface that characterizes geographic query scope in the embodiment of the present invention;
Fig. 3 is the drag operation schematic diagram of sliding button in the embodiment of the present invention;
Fig. 4 and Fig. 5 are the operation chart that drags the second sliding button in the embodiment of the present invention;
Fig. 6 and Fig. 7 are that the operation that drags the second sliding button and the first sliding button in the embodiment of the present invention is shownIntention;
Fig. 8 drags sliding button to carry out target trajectory inquiry particular flow sheet in the embodiment of the present invention;
Fig. 9 is target query result exemplary plot in the embodiment of the present invention;
Figure 10 is background server structure chart in the embodiment of the present invention.
Detailed description of the invention
The embodiment of the present invention has designed a kind of querying method and device of target trajectory, at computer geographyIn information system, simplify query manipulation, simple and direct, show accurately the tracing point of target, further can alsoDynamic analysis track trend, the instantaneous geographical element that is identified to track periphery, thus evaluating objects is at certain for the momentBetween and motion conditions in space, and then target is carried out to condition judgement.
Below in conjunction with Figure of description, the preferred embodiment of the present invention is elaborated.
In the embodiment of the present invention, at pretreatment stage, background server needs Offered target track query template,Concrete, background server can arrange following parameter for target trajectory query template:
1) the number N of the target trajectory point of initial query.
Its meaning is: in the time receiving user's target query instruction, in GIS-Geographic Information System for targetObtain N the tracing point that starts to recall from current time, N > 0; Optionally, N=50.
2) the geographical element of paying close attention to.
In the process of the tracing point of query aim, in tracing point periphery is set coordinate range, user is referred toFixed geographical element presents. Concrete, user can set and need to present according to the user demand of selfGeographical element, further, the priority that presents of each geographical element also can be set.
For example, the priority that presents that geographical element is set is: restaurant, gas station, lodging, bus station,Subway station, Internet bar, bank etc.,, in the process that presents geographic element, background server can be according to suitableOrder obtain successively query aim set coordinate range Nei restaurant, gas station, lodging, bus station, subway station,Internet bar, bank, and present.
In practical application, the geographical element that user can change according to demand presents needs in time and presentingPriority is upgraded. Certainly, if user does not need to present geographical element, this parameter also can be set,In the embodiment of the present invention, be only introduced to be set to example.
Consult shown in Fig. 1, in the embodiment of the present invention, the background server in GIS-Geographic Information System is to target trackThe detailed process that mark is inquired about is as follows:
Step 110: background server is according to the target query instruction receiving, for Target Acquisition when currentThe N recalling a quarter tracing point also presents, and further present operation circle for characterizing query contextFace. In practical application, target can be multiple entity.
For example, target can be vehicle, and now, user carries the license plate number of vehicle in target query instructionCan inquire about as identification information;
Again for example, target can be mobile phone, now, and the world of user's carrying mobile phone in target query instructionMobile identification number (InternationalMobileSubscriberIdentificationNumber, IMSI)Can inquire about as identification information.
Wherein, the background server in GIS-Geographic Information System obtains N the tracing point of recalling from current time,Be to operate according to the template setting in advance, N value is the parameters in template, optional,N=50 just can directly obtain 50 nearest tracing points in query script, after connecting, formsTrack is presented to user on map, and by the tracing point buffer memory of inquiry, is designated as the first tracing point set.
In inquiry tracing point, the background server in GIS-Geographic Information System can also obtain inquired aboutThe geographical element of tracing point periphery, wherein, presenting of geographical element is that template according to setting in advance is graspedDo, the geographical element that user need to pay close attention to and priority can be in the lump by the realities that sets in advance of templateExisting, background server is in presenting its tracing point of paying close attention to, at presented tracing point periphery to userIn setting coordinate range, present successively the geographical element of appointment according to default priority.
Like this, avoid the each inquiry of user to repeat input operation, by the ginseng setting in advance in templateNumber, just can only need a simple operations, just can present the track of the target that user pays close attention to, and rapidlyScreen and present the geographical element of periphery, and the track presenting is briefly clear, avoids redundancy track to usingThe interference that produces of track is paid close attention at family, is convenient to indicating user target from where and nearest movement locus.
Further, background server present for characterize query context operation interface, presenting distanceAfter nearest 50 tracing points of current time, present and can characterize time inquiring scope or/and geography to userThe operation interface of query context, for example, presenting to user can be for adjusting the sliding bar of time inquiring scopeOperation interface, specifically as shown in Figure 2 A, what user can adjust inquiry by actuating button recalls the timeStarting point and the end point (as shown in dotted portion in figure) of section; Again for example, presenting to user can be forAdjust the candidate frame operation interface of geographic query scope, specifically as shown in Fig. 2 B and Fig. 2 C, in candidate frameFor nearest 50 tracing points of distance current time that presented to user, the shape of candidate frame can have multiple,As rectangle, circle etc., user can change by dragging the border of candidate frame size or the position of candidate framePut (as shown in dotted portion in figure), redefine the geographic range that needs inquiry. Above-mentioned two kinds of operation circlesFace can show one or simultaneously show, like this, user can according to self-demand adjust neatly presentTracing point. Certainly, sliding bar and candidate frame are only giving an example in the present embodiment, in practical application, are not limited toThis kind of implementation.
Step 120: background server further detects the drag track of user for aforesaid operations interface, andAccording to the default mapping relations that drag track and query context, determine the query context (time that user specifiesQuery context is or/and geographic query scope), and obtain corresponding tracing point according to this time inquiring scope and enterRow presents.
Particularly, according to tracing point corresponding to the query context of user's appointment and N tracing point of current inquiryRelation, can be divided into following several situation:
If background server is determined N tracing point and is comprised tracing point corresponding to user's given query scope, continuesThe continuous tracing point that comprises part that presents, and hide the tracing point that does not comprise part; Or,
If background server is determined user's given query scope, corresponding tracing point comprises N tracing point, continuesContinuous present N tracing point, and obtain and do not comprise tracing point partly and present; Or,
If determining between tracing point that user's given query scope is corresponding and N tracing point, deposits background serverAt lap, continue to present the tracing point of lap in N tracing point and hide a described N railThe tracing point of non-overlapped part in mark point, and obtain in tracing point corresponding to user's given query scope and NThe tracing point of the underlapped part of individual tracing point also presents; Or,
If background server is determined tracing point and N tracing point zero lap that user's given query scope is correspondingPart, hides a described N tracing point, and obtains tracing point corresponding to user's given query scope and go forward side by sideRow presents.
Above-mentioned background server present or the process of hiding tracing point in, correspondence presents or hides tracing point weekThe geographical element in coordinate range is set on limit.
In the embodiment of the present invention, to adopt sliding bar to adjust time inquiring scope as example is introduced, adopt and waitThe associative operation that selects frame to adjust geographic query scope can carry out with reference to the associative operation of sliding bar, will be no longer superfluousState.
Taking sliding bar as example, consult shown in Fig. 2 A, in operation interface, can comprise the first sliding button and secondSliding button, wherein, the starting point of the time of recalling that the first sliding button is paid close attention to for consumer positioning, theThe terminating point of the time of recalling that two sliding buttons are paid close attention to for consumer positioning.
In practical application, user can present on the basis of N the tracing point that current time recalls, according to needCarry out two kinds of operations:
The first operation: drag the second sliding button, change the terminating point of the time of recalling of user's concern.
Consult shown in Fig. 3, dragging in process, background server can be according to default track and the duration of draggingMapping relations, current time point corresponding to position that drag of instant playback, is convenient to indicating user by dragging behaviourTram corresponding to paid close attention to time point elects.
The end that user is the time of recalling that will pay close attention at the corresponding time point in the position of determining the second sliding buttonWhen stop, stop drag operation, the time inquiring scope that background server is specified according to user, reads correspondenceTracing point, be designated as the second tracing point set, and present.
Wherein, background server is obtaining the tracing point that user's fixed time query context is corresponding and is presentingTime, comprise following situation:
1), if an above-mentioned N tracing point comprises tracing point corresponding to user's fixed time query context, continuePresent this and comprise part tracing point, and the hiding part tracing point that do not comprise.
For example: consult shown in Fig. 4, current time is 9:00, the set of an initial query N tracing point isOne tracing point set, user specify the time period that will inquire about be 8:00 to 9:00, can be sliding by dragging secondMoving button changes that to recall the terminating point of time be 8:00, and 8:00 is to the corresponding tracing point of target in the 9:00 time periodSet is the second track set, if first tracing point set-inclusion the second tracing point set retains buffer memoryThe the first tracing point subset overlapping with the second tracing point set in the first tracing point set, and hide the first railThe the second tracing point subset (hide and do not present) not overlapping with the second tracing point set in the set of mark point,And the first tracing point subset is presented.
On the other hand, if use candidate frame operation interface, can continue to use equally aforesaid way 1) realization sideThe tracing point of the geographic query scope that formula is paid close attention to user presents, and does not repeat them here.
2), if tracing point corresponding to user's fixed time query context comprises an above-mentioned N tracing point, continuePresent an above-mentioned N tracing point, and obtain and do not comprise part tracing point and present.
For example: consult shown in Fig. 5, current time is 9:00, the set of an initial query N tracing point isOne tracing point set, user's fixed time query context be 8:00 to 9:00, can be by dragging the second slipButton changes that to recall the terminating point of time be 8:00, and 8:00 is to the corresponding track point set of target in the 9:00 time periodBe combined into the second track set, if second tracing point set-inclusion the first tracing point set retains and presents buffer memoryThe first tracing point set, and obtain and present in the second tracing point set not and the first tracing point set weightThe 3rd tracing point subset of closing, what finally present to user is the first tracing point set and the 3rd track ideaThe common track connecting of collection.
On the other hand, if use candidate frame operation interface, can continue to use equally aforesaid way 2) realization sideThe tracing point of the geographic query scope that formula is paid close attention to user presents, and does not repeat them here.
The second operation: first drag the second sliding button, change the terminating point of the time of recalling of user's concern,Drag again the first sliding button, change the starting point of the time of recalling of user's concern.
Consult shown in Fig. 3, dragging in process, background server can be according to default track and the duration of draggingMapping relations, current time point corresponding to position that drag of instant playback, is convenient to indicating user by dragging behaviourTram corresponding to paid close attention to time point elects.
The end that user is the time of recalling that will pay close attention at the corresponding time point in the position of determining the second sliding buttonStop, stops dragging the operation of the second sliding button, and in the corresponding time of the position of determining the first sliding buttonPoint is for the time of recalling that will pay close attention to is when starting point, and termination drags the operation of the first sliding button, background serviceCorresponding query time section between the first sliding button and the second sliding button that device is specified according to user, readsCorresponding tracing point, is designated as the 3rd tracing point set, and presents.
Wherein, background server is obtaining tracing point corresponding to user's given query time period and is presentingTime, comprise following situation:
(1) if corresponding tracing point and the above-mentioned N tracing point of user's fixed time query context exists overlappingPart, continues to present the tracing point of the lap in an above-mentioned N tracing point and hides an above-mentioned N railThe tracing point of non-overlapped part in mark point, and obtain above-mentioned tracing point corresponding to user's given query time periodIn with the tracing point of above-mentioned N the underlapped part of tracing point and present.
Wherein, user's fixed time query context is corresponding tracing point and an above-mentioned N tracing point have overlapping portionPoint, also comprise that tracing point corresponding to user's fixed time query context is contained in this feelings of an above-mentioned N tracing pointCondition, only need continue to present the lap in above-mentioned N tracing point and hide underlapped part, does not needObtain in the tracing point that above-mentioned user's fixed time query context is corresponding underlapped with an above-mentioned N tracing pointPart also presents.
For example, consult shown in Fig. 6, current time is 9:00, and the set of an initial query N tracing point isOne tracing point set, user's fixed time query context be 7:00 to 8:00, can be by dragging the second slipButton changes that to recall the terminating point of time be 8:00, and changes by dragging the first sliding button the time of recallingStarting point is 7:00, and 7:00 is the 3rd track set to the corresponding tracing point set of target in the 8:00 time period,The 3rd tracing point set and the first tracing point set exist occurs simultaneously, and retains the first track point set that presents buffer memoryIn closing, with the 3rd tracing point intersection of sets collection part, hide in the first tracing point set and the 3rd tracing point setNot crossing part subset (hide and do not present), and obtain simultaneously and present the 3rd tracing point setIn the part subset not crossing with the 3rd tracing point set.
If the 3rd tracing point set-inclusion, in the first tracing point set, retains the first tracing point that presents buffer memoryIn set, with the 3rd tracing point intersection of sets collection part, hide in the first tracing point set and the 3rd track point setClose not crossing part subset.
On the other hand, if use candidate frame operation interface, can continue to use equally the realization of aforesaid way (1)The tracing point of the geographic query scope that mode is paid close attention to user presents, and does not repeat them here.
(2) if corresponding tracing point and above-mentioned N the tracing point zero lap portion of user's fixed time query contextPoint, hide an above-mentioned N tracing point, and obtain track corresponding to above-mentioned user's fixed time query contextPut and present.
For example, consult shown in Fig. 7, current time is 9:00, and the set of an initial query N tracing point isOne tracing point set, user's fixed time query context be 7:00 to 7:35, can be by dragging the second slipButton changes that to recall the terminating point of time be 7:35, and changes by dragging the first sliding button the time of recallingStarting point is 7:00, and 7:00 is the 3rd track set to the corresponding tracing point set of target in the 7:35 time period,If the 3rd tracing point set and the first tracing point set do not exist common factor, hide the first track point set of buffer memoryClose (hide do not present), obtain simultaneously and present the 3rd tracing point set.
On the other hand, if use candidate frame operation interface, can continue to use equally the realization of aforesaid way (2)The tracing point of the geographic query scope that mode is paid close attention to user presents, and does not repeat them here.
Further, the above-mentioned process of obtaining corresponding track according to time inquiring scope or geographic query scopeIn, present and hiding tracing point in, present accordingly and the geographical element of hiding tracing point periphery,Specific geographic element and priority orders are to carry out according to parameter default in target trajectory query template.
Like this, by simple drag operation, the tracing point that dynamically additions and deletions, aobvious hidden user pay close attention to andThe geographical element of periphery.
Consult shown in Fig. 8, adopt a concrete application scenarios to make further in detail above-described embodiment belowDescribe in detail bright:
Step 800: background server Offered target track query template.
The default parameter of background server in target trajectory query template comprises: the target track of initial queryThe number N of mark point, the geographical element of concern etc., as, parameter default in template comprises: initial queryThe geographical element priority orders that the number of target trajectory point is 50, pay close attention to is restaurant, subway station, bank.
Step 810: the background server in GIS-Geographic Information System, for the target query instruction receiving, is looked intoThe tracing point that inquiry satisfies condition.
In concrete query script, background server receives the target query instruction that user sends, and according in advanceThe target trajectory template first arranging is inquired about. Consult shown in accompanying drawing 9, in practical application, user only needsCan carry out the operation of one click the target button, just can directly generate target from current according to target trajectory templateLast 50 tracing points that moment is recalled, and connect generation track (as curve in Fig. 9), and, directlyGenerate 50 tracing point peripheries of inquire about and set coordinate range Nei restaurant, subway station and bank information. WhenSo, in template, the occurrence of parameter preset can need to upgrade at any time according to user.
Further, in presenting 50 tracing points that current time recalls, present for location and look intoAsk the sliding button of time period.
Like this, simplify user's operating procedure, simple and direct, to generate user and pay close attention to fast target track and weekThe geographical element in limit.
Step 820: background server detects user and drags sliding button, according to default drag track and timeLong mapping relations, instant playback current time, and definite user's time inquiring scope.
In practical application, sliding button can be divided into starting point sliding button and terminal sliding button, and user can pass throughDrag the starting point that starting point sliding button changes the time of recalling, also can change by dragging terminal sliding buttonRecall the terminating point of time, drag in process, in the time showing the moment that the moment will pay close attention to for user, stopDrag operation, just can determine the time period that user will inquire about.
Step 830: background server is in the time determining the query time section that user specifies, according to this query timeSection is obtained corresponding tracing point and is presented.
Step 840: background server is in the time determining the query time section that user specifies, according to this query timeThe geographical element that section is obtained corresponding tracing point periphery presents.
Like this, in actual applications, according to user drag operation, background server just capable of dynamic is aobviousShow, hide the geographical element of track and track periphery, simplified user's operation, can dynamic analysis targetThe geographical element of track trend and periphery, thus evaluating objects sometime with space in motion conditions, enterAnd target is carried out to condition judgement, obviously improve systematic function.
Based on above-described embodiment, to consult shown in Figure 10, in the embodiment of the present invention, background server comprisesOne query unit 1001 and the second query unit 1002, wherein:
The first query unit 1001, for according to receive target query instruction, for Target Acquisition from currentN the tracing point that moment is recalled also presents, and further present the operation for characterizing query contextInterface;
The second query unit 1002, for further detecting the drag track of user for operation interface, and pressesAccording to the default mapping relations that drag track and query context, determine the query context that user specifies, and pressObtaining corresponding tracing point according to query context presents.
Like this, in GIS-Geographic Information System, can simplify user's query manipulation, simple and direct, show order accuratelyTarget track, and can dynamic analysis track trend, thereby evaluating objects is transporting sometime with in spaceEmotionally condition, and then target is carried out to condition judgement, improve systematic function.
Preferably, according to the target query instruction receiving, the N recalling from current time for Target AcquisitionTracing point while presenting, the first query unit 1001 specifically for:
For target query instruction, present N the tracing point of recalling from current time accordingly; Wherein, existPresent in the process of N tracing point, in N tracing point periphery set coordinate range, according to what presetPriority presents the geographical element of appointment successively.
Like this, avoid the each inquiry of user to repeat input operation, by the ginseng setting in advance in templateNumber, just can only need a simple operations, just can screen rapidly and present the geographical element of periphery.
Preferably, when background server further presents the operation interface for characterizing query context, first looks intoAsking unit 1001 is further used for:
Further present for characterizing time inquiring scope or/and the operation interface of geographic query scope.
Like this, user can adjust presented tracing point neatly according to self-demand.
Preferably, background server further detects the drag track of user for operation interface, and according in advanceIf drag the mapping relations between track and query context, determine the query context that user specifies, and pressObtain corresponding tracing point according to query context and be now, the second query unit 1002 specifically for:
Determine that N tracing point comprises tracing point corresponding to user's given query scope, continues to present the portion of comprisingThe tracing point dividing, and hide the tracing point that does not comprise part; Or,
Determine that tracing point corresponding to user's given query scope comprises N tracing point, continue to present NTracing point, and obtain do not comprise part tracing point present; Or,
Determine between tracing point that user's given query scope is corresponding and N tracing point and have lap,Continue to present the tracing point of lap in N tracing point and hide non-overlapped part in N tracing pointTracing point, and obtain in tracing point corresponding to user's given query scope and N the underlapped part of tracing pointTracing point and present; Or,
Determine tracing point and N tracing point zero lap part that user's given query scope is corresponding, hide NIndividual tracing point, and obtain tracing point corresponding to user's given query scope and present.
Like this, by simple drag operation, the tracing point that dynamically additions and deletions, aobvious hidden user pay close attention to.
Preferably, the second query unit 1002 is further used for:
Background server present or the process of hiding tracing point in, correspondence presents or hides tracing point periphery and establishGeographical element within the scope of position fixing.
Like this, simplify user's operating procedure, simple and direct, generate user fast and pay close attention to target trajectory peripheryGeographical element.
In sum, in the embodiment of the present invention, background server according to receive target query instruction, forThe N that Target Acquisition is recalled from a current time tracing point presents, and further present for characterize look intoThe operation interface of inquiry scope, and further detect the drag track of user for described operation interface, according toThe default mapping relations that drag track and query context, determine the query context that user specifies, and according to instituteStating query context obtains corresponding tracing point and presents. Like this, in GIS-Geographic Information System, can simplifyUser's query manipulation, simple and direct, show accurately the track of target, and can dynamic analysis track trend,Thereby evaluating objects sometime with space in motion conditions, and then target is carried out to condition judgement, improveSystematic function.
Those skilled in the art should understand, embodiments of the invention can be provided as method, system or meterCalculation machine program product. Therefore, the present invention can adopt complete hardware implementation example, completely implement software example or knotClose the form of the embodiment of software and hardware aspect. And the present invention can adopt at one or more wherein bagsThe computer-usable storage medium that contains computer usable program code (include but not limited to magnetic disc store,CD-ROM, optical memory etc.) form of the upper computer program of implementing.
The present invention is that reference is according to the method for the embodiment of the present invention, equipment (system) and computer program productThe flow chart of product and/or block diagram are described. Should understand can be by computer program instructions realization flow figure 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. Can provide these computer program instructions to all-purpose computer, special-purpose computer, embeddingThe processor of formula processor or other programmable data processing device, to produce a machine, makes by calculatingThe instruction that the processor of machine or other programmable data processing device is carried out produces for realizing at flow chart oneThe device of the function of specifying in square frame of individual flow process or multiple flow process and/or block diagram or multiple square frame.
These computer program instructions also can be stored in energy vectoring computer or other programmable data processing are establishedIn the standby computer-readable memory with ad hoc fashion work, make to be stored in this computer-readable memoryInstruction produce and comprise the manufacture of command device, this command device is realized in flow process or multiple of flow chartThe function of specifying in square frame of flow process and/or block diagram or multiple square frame.
These computer program instructions also can be loaded in computer or other programmable data processing device, makeMust on computer or other programmable devices, carry out sequence of operations step to produce computer implemented placeReason, thus the instruction of carrying out on computer or other programmable devices is provided for realizing one of flow chartThe step of the function of specifying in square frame of flow process or multiple flow process and/or block diagram or multiple square frame.
Although described the preferred embodiments of the present invention, once those skilled in the art obtain cicada baseThis creative concept, can make other change and amendment to these embodiment. So appended right is wantedAsk and be intended to be interpreted as comprising preferred embodiment and fall into all changes and the amendment of the scope of the invention.
Obviously, those skilled in the art can carry out various changes and modification and de-to the embodiment of the present inventionFrom the spirit and scope of the embodiment of the present invention. Like this, if these amendments and the modification of the embodiment of the present invention belong toWithin the scope of the claims in the present invention and equivalent technologies thereof, the present invention be also intended to comprise these change andModification is interior.
Claims (10)
1. a querying method for target trajectory, is characterized in that, comprising:
Background server is according to the target query instruction receiving, the N recalling from current time for Target AcquisitionIndividual tracing point also presents, and further presents the operation interface for characterizing query context;
Background server further detects the drag track of user for described operation interface, and according to defaultDrag the mapping relations of track and query context, determine the query context that user specifies, and look into according to describedInquiry scope is obtained corresponding tracing point and is presented.
2. the method for claim 1, is characterized in that, background server is according to the target receivingQuery statement, the N recalling from current time for a Target Acquisition tracing point also presents, and comprising:
Background server, for target query instruction, presents N the track of recalling from current time accordinglyPoint; Wherein, presenting in the process of N tracing point, set coordinate model at described N tracing point peripheryIn enclosing, present successively the geographical element of appointment according to default priority.
3. method as claimed in claim 2, is characterized in that, further presents for characterizing inquiry modelThe operation interface enclosing, comprising:
Further present for characterizing time inquiring scope or/and the operation interface of geographic query scope.
4. the method as described in claim 1,2 or 3, is characterized in that, background server is further examinedSurvey the drag track of user for described operation interface, and according to default dragging between track and query contextMapping relations, determine the query context that user specifies, and obtain corresponding rail according to described query contextMark point presents, and comprising:
Background server determines that a described N tracing point comprises track corresponding to described user's given query scopePoint, continues to present the tracing point that comprises part, and hides the tracing point that does not comprise part; Or,
Background server determines that tracing point corresponding to described user's given query scope comprises a described N trackPoint, continues to present a described N tracing point, and obtain do not comprise part tracing point present; Or,
Background server is determined tracing point and the described N tracing point that described user's given query scope is correspondingBetween there is lap, continue to present tracing point the cache of lap in a described N tracing pointState the tracing point of non-overlapped part in N tracing point, and it is corresponding to obtain described user's given query scopeIn tracing point with the tracing point of described N the underlapped part of tracing point and present; Or,
Background server is determined tracing point and the described N tracing point that described user's given query scope is correspondingZero lap part, hide a described N tracing point, and it is corresponding to obtain described user's given query scopeTracing point also presents.
5. the method as described in claim 1,2 or 3, is characterized in that, further comprises:
Background server present or the process of hiding tracing point in, correspondence presents or hides described tracing point weekThe geographical element in coordinate range is set on limit.
6. an inquiry unit for target trajectory, is characterized in that, comprising:
The first query unit, for according to receive target query instruction, for Target Acquisition from current timeThe N a recalling tracing point also presents, and further present operation circle for characterizing query contextFace;
The second query unit, for further detecting the drag track of user for described operation interface, and pressesAccording to the default mapping relations that drag track and query context, determine the query context that user specifies, and pressObtaining corresponding tracing point according to described query context presents.
7. device as claimed in claim 6, is characterized in that, according to the target query instruction receiving,The N recalling from current time for a Target Acquisition tracing point while presenting, described the first query unitSpecifically for:
For target query instruction, present N the tracing point of recalling from current time accordingly; Wherein, existPresent in the process of N tracing point, in described N tracing point periphery set coordinate range, according in advanceIf priority present successively the geographical element of appointment.
8. device as claimed in claim 7, is characterized in that, further presents for characterizing inquiry modelEnclose operation interface time, described the first query unit is further used for:
Further present for characterizing time inquiring scope or/and the operation interface of geographic query scope.
9. the device as described in claim 6,7 or 8, is characterized in that, further detect user forDescribed operation interface drag track, and close according to the default mapping dragging between track and query contextSystem, determines the query context that user specifies, and obtains corresponding tracing point according to described query context and carry outBe current, described the second query unit specifically for:
Determine that a described N tracing point comprises tracing point corresponding to described user's given query scope, continues to beNow comprise the tracing point of part, and hide the tracing point that does not comprise part; Or,
Determine that tracing point corresponding to described user's given query scope comprises a described N tracing point, continues to beAn existing described N tracing point, and obtain and do not comprise tracing point partly and present; Or,
Determine between tracing point that described user's given query scope is corresponding and a described N tracing point, exist heavyFolded part, continues to present the tracing point of lap in a described N tracing point and hides a described N railThe tracing point of non-overlapped part in mark point, and obtain in tracing point corresponding to described user's given query scopeWith the tracing point of described N the underlapped part of tracing point and present; Or,
Determine tracing point and described N tracing point zero lap part that described user's given query scope is corresponding,Hide a described N tracing point, and obtain tracing point corresponding to described user's given query scope and carry outPresent.
10. the device as described in claim 6,7 or 8, is characterized in that, described the second query unitBe further used for:
Background server present or the process of hiding tracing point in, correspondence presents or hides described tracing point weekThe geographical element in coordinate range is set on limit.
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