CN103034715B - A kind of dissemination method and device of traffic events - Google Patents
A kind of dissemination method and device of traffic events Download PDFInfo
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- CN103034715B CN103034715B CN201210533991.0A CN201210533991A CN103034715B CN 103034715 B CN103034715 B CN 103034715B CN 201210533991 A CN201210533991 A CN 201210533991A CN 103034715 B CN103034715 B CN 103034715B
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Abstract
The present invention provides a kind of dissemination method of traffic events and device, wherein method includes：The traffic events inquiry request from mobile terminal is received, location information, direction of travel and the sending time of mobile terminal are included in the request；It includes the location information of mobile terminal to inquire in traffic event data library with the presence or absence of coverage, renewal time is in nearest first time period and confidence level reaches the traffic events of default confidence threshold value, if so, there will be the information of traffic events return to mobile terminal；Otherwise, average speed according to each section on direction of travel in nearest second time period determines generation position and the coverage of traffic events, coverage using the traffic events in determining coverage and sending time respectively more new traffic event data library and renewal time, and increase the confidence level of the traffic events.The present invention reduces cost of implementation, and the active demand based on user without the intensive path sensor for laying high quality, it is easy to accomplish and promote.
Description
【Technical field】
The present invention relates to computer application technology, more particularly to the dissemination method and device of a kind of traffic events.
【Background technology】
The event that traffic events refer to aperiodicity generation and certain road passage capability is made to decline, such as traffic accident,
Scram, cargoes from scattering, road maintenance, vehicle drive in the wrong direction, lane changing, hypervelocity, at a slow speed, stop, traffic jam etc., due to
Traffic events are very big on the trip of people influence, therefore carry out accurately detection and publication to traffic events and be of great significance.
Detection of the publication of traffic events based on traffic events, the existing detection method to traffic events include mainly following
Two kinds：
The first is to pass through path sensor（Such as ground induction coil or camera）Monitor the traffic information of road vehicle, root
Traffic throat floater is detected according to the method for data processing or image procossing to judge traffic events.
Second is to be based on user's contributing content（UGC）Traffic events collect, server receive mobile terminal report
Road section traffic volume event and time of origin judge traffic events after being integrated to information.
Above-mentioned first method needs laying road sensor, the standard of layout density and detection method to path sensor
True rate requirement is very high, and requires the necessary all weather operations of path sensor, and cost of implementation is higher.Second method needs to use householder
The information such as the place of the dynamic generation that reports traffic incidents and time of origin, the major demands of user be traffic events inquiry rather than
Traffic events report, thus user initiative it is difficult to ensure that, promote difficulty it is larger.
【Invention content】
In view of this, the present invention provides a kind of dissemination method of traffic events and device, reduces cost of implementation and be easy to
It promotes and realizes.
Specific technical solution is as follows：
A kind of dissemination method of traffic events, this method include：
S1, receive the traffic events inquiry request from mobile terminal, in the request comprising mobile terminal location information,
Direction of travel and sending time；
Include the location information, more of the mobile terminal with the presence or absence of coverage in S2, inquiry traffic event data library
It is new that the time is in nearest first time period and confidence level reaches the traffic events of default confidence threshold value, if so, there will be
The information of the traffic events returns to the mobile terminal；Otherwise, step S3 is executed；
S3, the hair that traffic events are determined according to the average speed in each section on the direction of travel in nearest second time period
Raw position and coverage utilize the friendship in determining coverage and sending time difference more new traffic event data library
The coverage of interpreter's part and renewal time, and increase the confidence level of the traffic events.
According to one preferred embodiment of the present invention, the information for returning to the traffic events of mobile terminal includes traffic events
Generation position or the position of the mobile terminal and the distance between the generation position of traffic events.
According to one preferred embodiment of the present invention, the information of the traffic events further includes that the mobile terminal passes through traffic thing
The generation position required time of part；
The generation position required time that the mobile terminal passes through traffic events is：The position of the mobile terminal with
In each road section length difference of traffic events occurred between position divided by the direction of travel obtained by the average speed in each section
The sum of each time arrived.
According to one preferred embodiment of the present invention, in nearest second time period on the direction of travel each section average speed
It determines in the following way：
Out of position setting range that extracted in user trajectory database apart from the mobile terminal and at nearest second
Between location data all in section；
The location data of extraction is matched on each section, is distinguished along the direction of travel using each mobile terminal
Displacement and time difference on each section calculate speed of each mobile terminal on each section or are obtained from location data
Speed of the mobile terminal on each section is taken, then is averaging to obtain by speed of all mobile terminals in same a road section respectively
The average speed in the section.
According to one preferred embodiment of the present invention, according to the roads the direction of travel Shang Ge in nearest second time period in step S3
The average speed of section determines generation position and the coverage of traffic events, specifically includes：
Calculate being averaged on the direction of travel of the mobile terminal two neighboring section middle and lower reaches section and upstream section
Speed difference, if difference is more than preset upper limit threshold, it is determined that traffic events are happened at upstream section, are preset if difference is less than
Lower threshold, it is determined that the coverage of traffic events includes downstream road section.
According to one preferred embodiment of the present invention, it if determining more than two generation positions for same traffic events, takes
Described two above sections that average speed minimum in position occurs.
According to one preferred embodiment of the present invention, the information of the traffic events further includes event type；
The event type initial default of traffic events is traffic congestion in traffic event data library, recycles reporting of user
Event type, the event type obtained from the event type obtained in the network information, from institute of traffic department distributing traffic information
Or the event type obtained from the traffic information that transportation provider provides comes in more new traffic event data library to correspond to traffic
The event type of event.
According to one preferred embodiment of the present invention, further include after the step S3：Traffic is returned to the mobile terminal
The information of event, and further return to the confidence level of the traffic events or indicate that the traffic events are doubtful traffic events.
According to one preferred embodiment of the present invention, this method further includes：
Confidence level is reached into mobile end of the traffic events of default confidence threshold value into the coverage of the traffic events
End, alternatively, the mobile terminal issuing traffic event information into the affiliated territorial scope of scene of the traffic events.
A kind of distributing device of traffic events, the device include：
Request reception unit includes movement for receiving the traffic events inquiry request from mobile terminal in the request
Location information, direction of travel and the sending time of terminal；
Event query unit includes the mobile terminal for inquiring in traffic event data library with the presence or absence of coverage
Location information, renewal time is in nearest first time period and confidence level reaches the traffic events of default confidence threshold value, such as
Fruit is, there will be the information of the traffic events be supplied to event release unit；Otherwise, trigger event computing unit；
Event release unit, the traffic event information for providing the event query unit return to described mobile whole
End；
Event computing unit, after the triggering for receiving the event query unit, according to institute in nearest second time period
The average speed for stating each section on direction of travel determines generation position and the coverage of traffic events, utilizes determining influence model
It encloses and distinguishes the coverage of the traffic events and renewal time in more new traffic event data library with the sending time, and increase
The confidence level of the traffic events.
According to one preferred embodiment of the present invention, the event release unit returns to the traffic events of mobile terminal
Information include traffic events the position that position or the mobile terminal occurs and traffic events occur between position away from
From.
According to one preferred embodiment of the present invention, the event release unit returns to the traffic events of mobile terminal
Information further includes：The generation position required time that the mobile terminal passes through traffic events；
The event computing unit is additionally operable to determine that the mobile terminal is required by the generation position of traffic events
Time is：The position of the mobile terminal and each road section length difference of traffic events occurred between position divided by the traveling
The sum of average speed obtained each time in the direction sections Shang Ge.
According to one preferred embodiment of the present invention, the event computing unit is additionally operable to determine nearest second in the following way
In period on the direction of travel each section average speed：
Out of position setting range that extracted in user trajectory database apart from the mobile terminal and at nearest second
Between location data all in section；
The location data of extraction is matched on each section, is distinguished along the direction of travel using each mobile terminal
Displacement and time difference on each section calculate speed of each mobile terminal on each section or are obtained from location data
Speed of the mobile terminal on each section is taken, then is averaging to obtain by speed of all mobile terminals in same a road section respectively
The average speed in the section.
According to one preferred embodiment of the present invention, event computing unit traveling according to nearest second time period
It is specific to execute when the average speed in the direction sections Shang Ge determines generation position and the coverage of traffic events：
Calculate being averaged on the direction of travel of the mobile terminal two neighboring section middle and lower reaches section and upstream section
Speed difference, if difference is more than preset upper limit threshold, it is determined that traffic events are happened at upstream section, are preset if difference is less than
Lower threshold, it is determined that the coverage of traffic events includes downstream road section.
According to one preferred embodiment of the present invention, if the event computing unit for same traffic events determine two with
Upper generation position then takes described two above sections that average speed minimum in position occurs.
According to one preferred embodiment of the present invention, the event release unit returns to the traffic events of mobile terminal
Information further includes event type；
The event computing unit gathers around the event type initial default of traffic events in traffic event data library for traffic
Stifled, the event type for recycling reporting of user, the event type obtained from the network information are believed from institute of traffic department issuing traffic
The event type obtained in breath or the event type obtained from the traffic information that transportation provider provides carry out more new traffic
The event type of traffic events is corresponded in part database.
According to one preferred embodiment of the present invention, the event release unit is additionally operable to execute in the event computing unit
After the operation of the confidence level for increasing the traffic events, the information of the traffic events is returned to the mobile terminal, goes forward side by side one
Step returns to the confidence level of the traffic events or indicates that the traffic events are doubtful traffic events.
According to one preferred embodiment of the present invention, the event release unit is additionally operable to confidence level reaching default confidence level
Mobile terminal of the traffic events of threshold value into the coverage of the traffic events, alternatively, to the scene of the traffic events
Mobile terminal issuing traffic event information in affiliated territorial scope.
As can be seen from the above technical solutions, the present invention is based on users meets congestion or other abnormal conditions on road
When can think the demands of active inquiry traffic events, traffic is determined by the collection of the traffic events inquiry request to mobile terminal
Coverage, renewal time and the confidence level of event, and traffic events really are determined whether there is with this and are distributed to user.
On the one hand the present invention is not necessarily to the path sensor of intensive laying high quality, reduces cost of implementation, is on the other hand based on user
Active demand, it is easy to accomplish and promote.
【Description of the drawings】
Fig. 1 is the dissemination method flow chart for the traffic events that the embodiment of the present invention one provides；
Fig. 2 is the distributing device structure chart of traffic events provided by Embodiment 2 of the present invention.
【Specific implementation mode】
To make the objectives, technical solutions, and advantages of the present invention clearer, right in the following with reference to the drawings and specific embodiments
The present invention is described in detail.
Since the major demands of user are the inquiry of traffic events, most users gather around being met on road
When stifled or other abnormal conditions, it may be desirable to obtain related traffic events letter by actively sending traffic events inquiry request
Breath, the present invention are namely based on the traffic events query demand of user to realize the detection and publication of traffic events.Lead to separately below
A pair of method provided by the invention of embodiment is crossed to be described in detail.
Embodiment one,
Fig. 1 is the dissemination method flow chart for the traffic events that the embodiment of the present invention one provides, as shown in Figure 1, this method can
To include the following steps：
Step 101：The traffic events inquiry request from mobile terminal is received, the position of mobile terminal is included in the request
Information, direction of travel and sending time.
User, can be especially by the button on triggering mobile terminal to service when encountering congestion or other abnormal conditions
Device sends traffic events inquiry request.Above-mentioned mobile terminal can include but is not limited to：Mobile phone, in-vehicle navigation apparatus, tablet electricity
Brain, especially customized mobile terminal device etc., as long as having positioning function and communication function.
Wherein, the location information of mobile terminal can be obtained by positioning systems such as GPS, and direction of travel can pass through
The acquisitions such as the sensor of mobile terminal, GPS or gyroscope, usually can in the form of angle comprising in the request, such as
With the angle of direct north.
Certainly further include User ID in above-mentioned traffic events inquiry request, to distinguish different users.
Step 102：Judge in traffic event data library with the presence or absence of position of the coverage comprising the mobile terminal, update
Time is in nearest first time period and confidence level reaches the traffic events of default confidence threshold value, if so, executing step
103；Otherwise, step 104 is executed.
Each traffic events are stored in traffic event data library（Traffic events herein are comprising doubtful traffic events and very
Real traffic events）Coverage, renewal time and confidence level.As its name suggests, coverage is exactly that traffic events are influenced
Section.Renewal time is the latest update time to the record of the traffic events, as long as to the coverages of the traffic events,
Any of confidence level etc. is updated, and the renewal time of traffic events can be all updated.Confidence level reflects traffic events
Really degree, once its confidence level has reached predetermined threshold value, it is determined that and it is true traffic events, when user inquires just by the friendship
Logical event information returns to user.If confidence level does not reach predetermined threshold value, which is only doubtful traffic events.
Empirical value may be used in above-mentioned nearest first time period and confidence threshold value, or sets in advance according to actual needs
It is fixed.Such as nearest first time period can take in nearest 5 minutes, confidence threshold value can choose 3.
The update in traffic event data library will specifically be described in detail in step 105.
Step 103：By position of the above-mentioned coverage comprising the mobile terminal, renewal time in nearest first time period
And confidence level reaches the traffic event information of predetermined threshold value and returns to the mobile terminal, terminates flow.
In this case, illustrating present vicinity really has true traffic events, and the traffic events influence this
The position of mobile terminal, therefore the traffic event information is returned into the mobile terminal, user just understand that neighbouring traffic
Event.The traffic event information for wherein returning to user may include：The generation position of traffic events can also include event class
The generation position required time that type or the mobile terminal pass through traffic events.
In addition, mobile terminal can also be replaced by by returning to the generation position of traffic events in the traffic event information of user
Position and traffic events the distance between generation position.The mobile terminal is required by the generation position of traffic events
Time can be：The position of mobile terminal and each road section length difference occurred between position divided by direction of travel of traffic events
The sum of average speed obtained each time in upper each section.Wherein the computational methods of the average speed in section will be in step 105
Middle specific descriptions.
The generation position of specific traffic events and event type will be in subsequent detailed descriptions.
Step 104：Out of position setting range that extracted in user trajectory database apart from the mobile terminal and nearest
All location datas in second time period.
Record has the location information at each time point obtained to the positioning of each mobile terminal in user trajectory database, should
Partial content is the prior art, and the location data in user trajectory database is directly utilized in the embodiment of the present invention.
For example, it is assumed that user A has sent traffic events inquiry request, the user for including in the traffic events inquiry request
Location information is P, then the location data centered on P in 3 kilometers of circumference in nearest 10 minutes can be extracted, in step
The average speed in each section on user's direction of travel is calculated in 105.
There is no inevitable contact between above-mentioned nearest first time period and nearest second time period, herein only for differentiation
Two periods and nominally distinguished.
Step 105：According to the average speed in each section determines on the mobile terminal direction of travel in nearest second time period
The generation position of traffic events and coverage utilize the traffic events in determining coverage more new traffic event data library
Coverage, increase the confidence level of the traffic event data library traffic events, using the sending time of request as traffic events
The renewal time of the traffic events in database.
In the average speed in each section on calculating the mobile terminal direction of travel, the location data of extraction is matched first
Onto each section, then utilize each mobile terminal along above-mentioned the direction of travel displacement on each section and time difference respectively
It calculates speed of the mobile terminal on each section, then is respectively averaging all mobile terminals with the speed in a road section
To the average speed in the section.It can also be by including the speed of mobile terminal in location data that mobile terminal GPS device reports
Information is spent, after the location data of extraction is matched on each section, has just obtained speed letter of the mobile terminal in corresponding road section
Speed of each mobile terminal in certain a road section is averaging the average speed for just obtaining the section by breath.
At the generation position and coverage for determining traffic events, calculate adjacent on the direction of travel of the mobile terminal
The average speed difference in two sections middle and lower reaches section and upstream section, if the difference is more than preset upper limit threshold, it is determined that
Traffic events are happened at upstream section.If such as downstream road section and the average speed difference in upstream section are more than 10km/h, table
Show the generation position of traffic events in upstream section.If the difference is less than preset lower threshold, it is determined that the shadow of traffic events
It rings range and is related to downstream road section.If such as the average speed difference of downstream road section is less than -10km/h, then it represents that the influence of event
Range is related to downstream road section.Generation position and the coverage of traffic events, that is, the road influenced can be determined with this
Section.
If it is determined that the generation positions of traffic events be not same section, that is, the traffic for using the above method to determine
It is two or more that position, which occurs, for event, then the road of corresponding average speed minimum can be determined from the multiple generation positions determined
Position occurs for Duan Zuowei traffic events.For example, it is assumed that the section where mobile terminal is A, apart from the position of the mobile terminal
It sets in setting range and there is also the section B adjacent with section A and section C, wherein section B on running of mobile terminal direction is
The upstream section of section A, section C are the downstream road section of section A.If the average speed difference of section A and section B is more than
10km/h, it is determined that it is section B that position, which occurs, for traffic events, but the average speed difference of section C and section A is also greater than 10km/
H, it is section A to determine that position occurs for traffic events, at this time, it may be necessary to whose smaller of the average speed of section B and section A is judged again, it is false
If the average speed of section B is less than the average speed of section A, then finally determine that the generation position of traffic events is section B.
It, typically will be true using the coverage of the traffic events in determining coverage more new traffic event data library
The section that the coverage made is related to is added to the coverage of the traffic events in traffic event data library.
Then the confidence level of the traffic events in traffic event data library is added 1, and illustrates that the traffic events are still occurring
Or in influencing, therefore using the sending time of the request as the renewal time of the traffic events.
The event type initial default of each traffic events is traffic congestion in traffic event data library.If certain user is logical
It crosses traffic events inquiry request and has reported specific event type, then replace the event class of initial default with specific event type
Type.Reported different event types for same traffic events if there is multiple users, then it can be according to preset strategy
One of which is chosen, such as the strategy etc. that the minority is subordinate to the majority, specific strategy is not defined herein.
It is provided in addition, can also periodically receive the network information, the traffic event information of traffic department's publication or traffic information
The traffic event information etc. that quotient provides, using the traffic information in these sources come traffic events in more new traffic event data library
Event type equally can be according to preset when the traffic events Type-Inconsistencies that separate sources is provided for same event
Policy selection one of which, for example, basis source mechanism confidence level, alternatively, the minority is subordinate to the majority equal strategies.
The event type of specific traffic events can include but is not limited to：Traffic congestion, traffic control, traffic accident,
Road maintenance, scram, cargoes from scattering, lane changing etc..
Step 106：The information of the traffic events is returned to mobile terminal, and includes confidence level or the instruction of the traffic events
The traffic events are doubtful traffic events.
Since preset confidence threshold value has not yet been reached in the confidence level of the traffic events at this time, which is only
Doubtful traffic events, this step can not also execute, can be in the information for returning to the traffic events if executing this step
When, the confidence level comprising the traffic events is for reference in the information of the traffic events, alternatively, indicating that the traffic events are
Doubtful traffic events.Equally, the information of above-mentioned traffic events can include the generation position of traffic events, can also include movement
For terminal by the generation position required time of traffic events, coverage, event type etc., event type at this time can be with
Using the traffic congestion of acquiescence, or use UNKNOWN TYPE.
In addition, returning to hair in addition to confidence level to be reached to the traffic events of default confidence threshold value in embodiments of the present invention
The mobile terminal of traffic events inquiry request is sent, it can also be further to all movements in the coverage of the traffic events
All mobile terminals all issuing traffic event informations in the affiliated territorial scope of the scene of terminal or even the traffic events.
Other mobile terminals can take the measures such as delay trip or detour to avoid the traffic events with reference to traffic event information in this way
Coverage in section.
It is the detailed description carried out to method provided by the present invention above, the present invention is provided below by embodiment two
Device be described in detail.
Embodiment two,
Fig. 2 is the distributing device structure chart of traffic events provided by Embodiment 2 of the present invention, as shown in Fig. 2, the device packet
It includes：Request reception unit 201, event query unit 202, event release unit 203 and event computing unit 204.
Request reception unit 201 receives the traffic events inquiry request from mobile terminal first, and shifting is included in the request
Location information, direction of travel and the sending time of dynamic terminal.
User, can be especially by the button on triggering mobile terminal to service when encountering congestion or other abnormal conditions
Device sends traffic events inquiry request.Above-mentioned mobile terminal can include but is not limited to：Mobile phone, in-vehicle navigation apparatus, tablet electricity
Brain, especially customized mobile terminal device etc., as long as having positioning function and communication function.
Wherein, the location information of mobile terminal can be obtained by positioning systems such as GPS, and direction of travel can pass through
The acquisitions such as the sensor of mobile terminal, GPS or gyroscope, usually can in the form of angle comprising in the request, such as
With the angle of direct north.
Certainly further include User ID in above-mentioned traffic events inquiry request, to distinguish different users.
Then, event query unit 202 is inquired in traffic event data library includes mobile terminal with the presence or absence of coverage
Location information, renewal time is in nearest first time period and confidence level reaches the traffic events of default confidence threshold value, such as
Fruit is, there will be the information of traffic events be supplied to event release unit 203；Otherwise, trigger event computing unit 204.
The location information of mobile terminal is matched with the coverage of each traffic events in traffic event data library,
If hitting traffic events, continues renewal time and the confidence level of the traffic events for checking hit, judge whether to be nearest
It is newer in first time period, and confidence level reaches preset confidence threshold value, if it is, explanation is currently implicitly present in traffic
Event influences the position of the mobile terminal.
Empirical value may be used in above-mentioned nearest first time period and confidence threshold value, or sets in advance according to actual needs
It is fixed.Such as nearest first time period can take in nearest 5 minutes, confidence threshold value can choose 3.
The traffic event information that event query unit 202 provides is returned to mobile terminal by event release unit 203.
The traffic event information for wherein returning to user may include：The generation position of traffic events can also include thing
The generation position required time that part type or the mobile terminal pass through traffic events.
In addition, mobile terminal can also be replaced by by returning to the generation position of traffic events in the traffic event information of user
Position and traffic events the distance between generation position.The mobile terminal is required by the generation position of traffic events
Time can be：The position of mobile terminal and each road section length difference occurred between position divided by direction of travel of traffic events
The sum of average speed obtained each time in upper each section.Wherein the computational methods of the average speed in section will be in subsequent descriptions
In completed by event computing unit 204.
Event computing unit 204 is then after the triggering for receiving event query unit 202, according to nearest second time period expert
Average speed into the direction sections Shang Ge determines generation position and the coverage of traffic events, using determining coverage and
The coverage of the traffic events and renewal time in sending time difference more new traffic event data library, and increase the traffic thing
The confidence level of part.
In order to determine that generation position and the coverage of traffic events, event computing unit 204 are additionally operable to using such as lower section
Formula determines the average speed in each section on direction of travel in nearest second time period, specifically includes：From user trajectory database
It extracts in position setting range apart from mobile terminal and all location datas in nearest second time period；By determining for extraction
Position data are matched on each section, using each mobile terminal along the direction of travel displacement on each section and time respectively
Difference calculates speed of each mobile terminal on each section or from obtaining mobile terminal in location data on each section
Speed, then be averaging speed of all mobile terminals in same a road section to obtain the average speed in the section respectively.
Record has the location information at each time point obtained to the positioning of each mobile terminal in user trajectory database, should
Partial content is the prior art, and the location data in user trajectory database is directly utilized in the embodiment of the present invention.
There is no inevitable contact between above-mentioned nearest first time period and nearest second time period, herein only for differentiation
Two periods and nominally distinguished.
More specifically, each section is averaged event computing unit 204 on direction of travel according to nearest second time period
It is specific to execute when speed determines generation position and the coverage of traffic events：
Calculate the average speed in two neighboring section middle and lower reaches section and upstream section on the direction of travel of the mobile terminal
Difference is spent, if difference is more than preset upper limit threshold, it is determined that traffic events are happened at upstream section, if difference is less than preset
Lower threshold, it is determined that the coverage of traffic events includes downstream road section.
If event computing unit 204 determines more than two generation positions for same traffic events, take described two
The above section that average speed minimum in position occurs.
In addition to this, event computing unit 204 can also further determine that generation position of the mobile terminal by traffic events
It sets the required time, i.e. each road section length difference occurred between position divided by row of the position of mobile terminal and traffic events
The sum of average speed obtained each time into the direction sections Shang Ge.
Preferably, the information that event release unit 203 returns to the traffic events of mobile terminal further includes event type, this
When, the event type initial default of traffic events in traffic event data library can be traffic congestion by event computing unit 204,
The event type for recycling reporting of user, the event type obtained from the network information, from institute of traffic department distributing traffic information
The event type of the middle acquisition or event type that obtains updates traffic events from the traffic information that transportation provider provides
The event type of traffic events is corresponded in database.
It, equally can be according to preset plan when the traffic events Type-Inconsistencies that separate sources is provided for same event
One of which, such as the confidence level of basis source mechanism are slightly selected, strategies are waited alternatively, the minority is subordinate to the majority.
The event type of specific traffic events can include but is not limited to：Traffic congestion, traffic control, traffic accident,
Road maintenance, scram, cargoes from scattering, lane changing etc..
In addition to this, for inquiring the case where confidence level of traffic events is not up to preset confidence threshold value, event
Release unit 203, can also should after the operation that event computing unit 204 has executed the confidence level for increasing traffic events
The information of traffic events returns to mobile terminal.Setting for the traffic events can be further included in the information of the traffic events
Reliability is for reference, alternatively, indicating that the traffic events are doubtful traffic events.Equally, the information of above-mentioned traffic events can be with
Include the generation position of traffic events, can also include mobile terminal by generation position required time of traffic events,
Coverage, event type etc., the traffic congestion of acquiescence may be used in event type at this time, or uses UNKNOWN TYPE.
In addition, event release unit 203 by confidence level in addition to reaching default confidence threshold value in embodiments of the present invention
Traffic events return to the mobile terminal for sending traffic events inquiry request, and confidence level can also be reached to default confidence threshold value
Mobile terminal of the traffic events into the coverage of the traffic events, alternatively, belonging to scene to the traffic events
Mobile terminal issuing traffic event information in territorial scope.Other mobile terminals can be adopted with reference to traffic event information in this way
The measures such as delay trip or detour are taken to avoid the section in the coverage of the traffic events.
For above-mentioned mobile terminal after receiving traffic event information, which is presented to user, is had
The ways of presentation of body may be used but be not limited to：User is showed in a manner of text, in a manner of being identified on map
It is presented to user etc..
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all essences in the present invention
With within principle, any modification, equivalent substitution, improvement and etc. done should be included within the scope of protection of the invention god.
Claims (18)
1. a kind of dissemination method of traffic events, which is characterized in that this method includes：
S1, the traffic events inquiry request from mobile terminal is received, the location information comprising mobile terminal, traveling in the request
Direction and sending time；
When including the location information of the mobile terminal, update with the presence or absence of coverage in S2, inquiry traffic event data library
Between in nearest first time period and confidence level reaches the traffic events of default confidence threshold value, if so, there will be described in
The information of traffic events returns to the mobile terminal；Otherwise, step S3 is executed；
S3, the generation position that traffic events are determined according to the average speed in each section on the direction of travel in nearest second time period
It sets and coverage, utilizes determining coverage and the sending time traffic thing in more new traffic event data library respectively
The coverage of part and renewal time, and increase the confidence level of the traffic events.
2. according to the method described in claim 1, it is characterized in that, returning to the packet of the traffic events of mobile terminal
Include generation position or the position of the mobile terminal and the distance between the generation position of traffic events of traffic events.
3. method according to claim 1 or 2, which is characterized in that the information of the traffic events further includes the movement
The generation position required time that terminal passes through traffic events；
The generation position required time that the mobile terminal passes through traffic events is：The position of the mobile terminal and traffic
The average speed in each section is obtained in each road section length difference of event occurred between position divided by the direction of travel
The sum of each time.
4. according to the method described in claim 1, it is characterized in that, each section on the direction of travel in second time period recently
Average speed determine in the following way：
Out of position setting range that extracted in user trajectory database apart from the mobile terminal and in nearest second time period
Interior all location datas；
The location data of extraction is matched on each section, using each mobile terminal along the direction of travel respectively each
Displacement and time difference on section calculate speed of each mobile terminal on each section or the acquisition shifting from location data
Dynamic speed of the terminal on each section, then be averaging to obtain on the road by speed of all mobile terminals in same a road section respectively
The average speed of section.
5. according to the method described in claim 1, it is characterized in that, according to the traveling in nearest second time period in step S3
The average speed in the direction sections Shang Ge determines generation position and the coverage of traffic events, specifically includes：
Calculate the average speed in two neighboring section middle and lower reaches section and upstream section on the direction of travel of the mobile terminal
Difference, if difference be more than preset upper limit threshold, it is determined that traffic events are happened at upstream section, if difference be less than it is preset under
Limit threshold value, it is determined that the coverage of traffic events includes downstream road section.
6. if according to the method described in claim 5, it is characterized in that, determine more than two generations for same traffic events
Position then takes described two above sections that average speed minimum in position occurs.
7. method according to claim 1 or 2, which is characterized in that the information of the traffic events further includes event type；
The event type initial default of traffic events is traffic congestion in traffic event data library, recycles the event of reporting of user
Type, the event type obtained from the event type obtained in the network information, from institute of traffic department distributing traffic information or
The event type obtained from the traffic information that transportation provider provides comes in more new traffic event data library to correspond to traffic events
Event type.
8. method according to claim 1 or 2, which is characterized in that further include after the step S3：To the movement
Terminal returns to the information of traffic events, and further returns to the confidence level of the traffic events or indicate that the traffic events are doubtful friendship
Interpreter's part.
9. according to the method described in claim 1, it is characterized in that, this method further includes：
Confidence level is reached into mobile terminal of the traffic events of default confidence threshold value into the coverage of the traffic events, or
Person, the mobile terminal issuing traffic event information into the affiliated territorial scope of scene of the traffic events.
10. a kind of distributing device of traffic events, which is characterized in that the device includes：
Request reception unit includes mobile terminal for receiving the traffic events inquiry request from mobile terminal, in the request
Location information, direction of travel and sending time；
Event query unit, for inquiring the position for including the mobile terminal with the presence or absence of coverage in traffic event data library
Confidence breath, renewal time is in nearest first time period and confidence level reaches the traffic events of default confidence threshold value, if so,
There will be the information of the traffic events be supplied to event release unit；Otherwise, trigger event computing unit；
Event release unit, the traffic event information for providing the event query unit return to the mobile terminal；
Event computing unit, after the triggering for receiving the event query unit, according to the row in nearest second time period
Average speed into the direction sections Shang Ge determines generation position and the coverage of traffic events, using determining coverage and
The coverage of the traffic events and renewal time in the sending time difference more new traffic event data library, and increase the friendship
The confidence level of interpreter's part.
11. device according to claim 10, which is characterized in that the event release unit returns to the institute of mobile terminal
The information for stating traffic events includes generation position or the position of the mobile terminal and the generation of traffic events of traffic events
The distance between position.
12. the device according to claim 10 or 11, which is characterized in that the event release unit returns to mobile terminal
The information of the traffic events further include：The generation position required time that the mobile terminal passes through traffic events；
The event computing unit is additionally operable to determine generation position required time of the mobile terminal by traffic events
For：The position of the mobile terminal and each road section length difference of traffic events occurred between position divided by the direction of travel
The sum of average speed obtained each time in upper each section.
13. device according to claim 10, which is characterized in that the event computing unit is additionally operable in the following way
Determine the average speed in each section on the direction of travel in nearest second time period：
Out of position setting range that extracted in user trajectory database apart from the mobile terminal and in nearest second time period
Interior all location datas；
The location data of extraction is matched on each section, using each mobile terminal along the direction of travel respectively each
Displacement and time difference on section calculate speed of each mobile terminal on each section or the acquisition shifting from location data
Dynamic speed of the terminal on each section, then be averaging to obtain on the road by speed of all mobile terminals in same a road section respectively
The average speed of section.
14. device according to claim 10, which is characterized in that the event computing unit is according to nearest second time
When the average speed in each section determines generation position and the coverage of traffic events on the direction of travel in section, specifically hold
Row：
Calculate the average speed in two neighboring section middle and lower reaches section and upstream section on the direction of travel of the mobile terminal
Difference, if difference be more than preset upper limit threshold, it is determined that traffic events are happened at upstream section, if difference be less than it is preset under
Limit threshold value, it is determined that the coverage of traffic events includes downstream road section.
15. device according to claim 14, which is characterized in that if the event computing unit is directed to same traffic events
It determines more than two generation positions, then takes described two above sections that average speed minimum in positions occurs.
16. the device according to claim 10 or 11, which is characterized in that the event release unit returns to mobile terminal
The information of the traffic events further include event type；
The event type initial default of traffic events in traffic event data library is traffic congestion by the event computing unit, then
Using the event type of reporting of user, from the event type obtained in the network information, from institute of traffic department distributing traffic information
The event type of acquisition or the event type obtained from the traffic information that transportation provider provides carry out more new traffic event
According to the event type for corresponding to traffic events in library.
17. the device according to claim 10 or 11, which is characterized in that the event release unit is additionally operable in the thing
After part computing unit has executed the operation of the confidence level for increasing the traffic events, the traffic thing is returned to the mobile terminal
The information of part, and further return to the confidence level of the traffic events or indicate that the traffic events are doubtful traffic events.
18. device according to claim 10, which is characterized in that the event release unit is additionally operable to reach confidence level
To mobile terminal of the traffic events into the coverage of the traffic events of default confidence threshold value, alternatively, to the traffic thing
Mobile terminal issuing traffic event information in the affiliated territorial scope of scene of part.
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| CN107798864A (en) * | 2016-09-06 | 2018-03-13 | 高德信息技术有限公司 | A kind of computational methods and device of road speed |
| CN108877208B (en) * | 2017-05-09 | 2022-06-24 | 阿里巴巴（中国）有限公司 | Image acquisition method and device |
| CN111325986B (en) * | 2019-04-04 | 2020-12-22 | 北京嘀嘀无限科技发展有限公司 | Abnormal parking monitoring method and device, electronic equipment and storage medium |
| CN112836626B (en) * | 2021-01-29 | 2023-10-27 | 北京百度网讯科技有限公司 | Accident determining method and device, model training method and device and electronic equipment |
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