WO2011127711A1

WO2011127711A1 - Method and system for road condition information release

Info

Publication number: WO2011127711A1
Application number: PCT/CN2010/076673
Authority: WO
Inventors: 王志强; 朱杰; 何翔
Original assignee: 深圳市赛格导航科技股份有限公司
Priority date: 2010-04-13
Filing date: 2010-09-07
Publication date: 2011-10-20
Also published as: CN102222407B; CN102222407A

Abstract

A method for road condition information release comprises, receiving many road condition messages of corresponding road segment, computing the first road condition indicating value of the road segment accordingly, wherein each road condition message records a road condition state of the road segment, which is jam state or smooth state; computing the second road condition indicating value of the road segment based on many items of monitoring data of the road segment; computing a comprehensive road condition indicating value based on the first and second road condition indicating values; releasing a current road condition information of the corresponding road segment based on the comprehensive road condition indicating value. A road condition information release system is also provided.

Description

Road condition information publishing method and road condition information publishing system

The present invention relates to information distribution technology, and more particularly to a road condition information distribution method and a road condition information distribution system. Background technique

With the improvement of people's living standards, cars have begun to enter thousands of households, and the traffic problems caused by them have also increased. Among them, road congestion is the most serious problem. Despite the deployment of various navigation devices, existing navigation devices often only provide the best route to the destination, with little consideration for traffic congestion. Therefore, driving users may waste a lot of time on the road of congestion. In this case, dynamic road condition information release technology came into being. The existing dynamic road condition information release technology dynamically determines the latest congestion status of the road by means of surveillance video, on-site observation and driver feedback, and then releases the latest road condition information through voice broadcast. However, it is not difficult to understand that the existing dynamic road condition information release technology inevitably consumes a lot of manpower and material resources, and it is difficult to cover every corner of the city.

Therefore, a road condition information release technology is needed, which can effectively solve various problems existing in the existing road condition information release technology. Summary of the invention

The technical problem to be solved by the present invention is to provide a road condition information publishing method and a road condition information publishing system for the defects that the existing road condition information publishing technology occupies serious human and material resources and cannot cover every corner of the city.

The technical solution adopted by the present invention to solve the technical problem thereof is:

A road condition information issuance method, configured to release current road condition information of a road segment, comprising: receiving a plurality of road condition messages corresponding to the road segment, and calculating a first road condition indication value of the road segment, wherein each road condition message records the The state of the road section, the state of the road is congested or unblocked State

Calculating a second road condition indication value of the road section based on the plurality of monitoring data of the road section;

Calculating an integrated road condition indication value based on the first road condition indication value and the second road condition indication value;

The current road condition information corresponding to the road segment is released based on the integrated road condition indication value.

Preferably, the plurality of monitoring data includes historical data of the road segment; the method further includes: adding the calculated first road condition indication value to the historical data after the current road condition information is issued.

Preferably, the multiple auxiliary monitoring data further includes at least one of the following data: manual input data corresponding to the road segment;

Input data for the network of the road segment;

Traffic monitoring data for this section.

Preferably, the calculating the second road condition indication value of the road segment based on the plurality of monitoring data of the road segment further comprises: calculating a second road condition indication value of the road segment based on the plurality of monitoring data of the road segment and corresponding weights thereof;

The calculating the integrated road condition indication value based on the first road condition indication value and the second road condition indication value further comprises: calculating the comprehensive road condition indication value based on the first road condition indication value and the corresponding weight and the second road condition indication value and corresponding weights thereof .

Preferably, the current road condition information is released in at least one of the following manners: a voice broadcast;

short message;

Web page.

A road condition information release system, configured to release current road condition information of a road segment, comprising: a communication module, configured to receive a plurality of road condition messages corresponding to the road segment;

a first calculation module, configured to calculate a first road condition indication value of the road segment according to the received multiple road condition messages, where a road condition state of the road segment is recorded in each road condition message, and the road condition state is a congestion state or a clear state;

a second calculating module, configured to calculate a second road condition indication value of the road segment based on the plurality of monitoring data of the road segment; An integrated calculation module, configured to calculate an integrated road condition indication value based on the first road condition indication value and the second road condition indication value;

The issuing module is configured to release current road condition information corresponding to the road section through the communication module based on the integrated road condition indication value.

Preferably, the plurality of monitoring data includes historical data of the road segment; the publishing module is further configured to: after the current road condition information is issued, add the calculated first road condition indication value to the historical data.

Input data for the network of the road segment;

Traffic monitoring data for this section.

Preferably, the second calculating module is further configured to calculate a second road condition indication value of the road segment based on the plurality of monitoring data of the road segment and the corresponding weight thereof;

The integrated calculation module is further configured to calculate an integrated road condition indication value based on the first road condition indication value and its corresponding weight and the second road condition indication value and their corresponding weights.

short message;

Web page.

The technical solution of the present invention has the following beneficial effects: The road condition information publishing method and the road condition information publishing system provided by the present invention receive the road condition message periodically reported by the car navigation device, and comprehensively calculate the current road condition state by combining various monitoring data, and then periodically Publish the current traffic status. Since the feedback of the road condition message and the calculation of the current road condition state can be automatically completed without human intervention, the technical solution provided by the invention can greatly reduce the manpower and material resources occupied. In addition, in the technical solution provided by the present invention, the in-vehicle navigation device can feed back the road condition information wherever it goes, so the technical solution provided by the present invention can cover every corner of the urban traffic. In addition, the technical solution provided by the present invention does not need to make major changes to the existing facilities, and the process of implementing the process is easy. DRAWINGS

The present invention will be further described below in conjunction with the accompanying drawings and embodiments, in which:

1 is a flow chart of a method for reporting a congestion road segment according to a preferred embodiment of the present invention; FIG. 2 is a flow chart of a method for reporting a driving condition according to a preferred embodiment of the present invention; FIG. 3 is a preferred embodiment of the present invention. FIG. 4 is a schematic diagram of a logical structure of a car navigation device according to a preferred embodiment of the present invention; FIG. 5 is a flow chart of a method for reporting a clear path segment according to a preferred embodiment of the present invention; 6 is a schematic diagram of a logical structure of a car navigation device according to a preferred embodiment of the present invention; FIG. 7 is a flow chart of a road condition information distribution method according to a preferred embodiment of the present invention; FIG. 8 is a preferred embodiment of the present invention. A schematic diagram of the logical structure of the road condition information release system. detailed description

The present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It is understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

The invention provides a road condition information publishing method and a road condition information publishing system, which can receive a road condition message periodically reported by a vehicle-mounted navigation device, and comprehensively calculate a current road condition state by combining various monitoring data, and then periodically release a current road condition state. Since the feedback of the traffic condition message and the calculation of the current road state can be automatically completed without human intervention, the technical solution provided by the invention can greatly reduce the human and material resources occupied. In addition, in the technical solution provided by the present invention, the in-vehicle navigation device can feed back the road condition information wherever it is, so the technical solution provided by the present invention can cover every corner of the urban traffic. In addition, the technical solution provided by the present invention does not need to make major changes to the existing facilities, and the process of implementing the process is easy. The technical solutions provided by the present invention are described in detail below with reference to the accompanying drawings and specific embodiments.

1 is a flow chart of a method 100 for reporting a congestion segment in accordance with a preferred embodiment of the present invention. As shown in FIG. 1, the congestion segment reporting method 100 begins at step 102.

Subsequently, in a next step 104, the duration of the vehicle's travel speed being lower than the first preset speed threshold is detected.

In the specific implementation process, when the vehicle travel speed is detected to be lower than the first preset speed threshold Timer. After the timer is started, if it is detected that the vehicle traveling speed is equal to or higher than the first preset speed threshold, the timer is reset. In this way, when the running speed of the vehicle continues to be lower than the first preset speed threshold, the duration of the state can be calculated by the timer, that is, the duration of the vehicle running speed being lower than the first preset speed threshold.

Then, in the next step 106, it is judged whether the duration of the vehicle running speed lower than the first preset speed threshold exceeds the first preset duration threshold, and if so, the process goes to step 108, otherwise to step 104.

As described above, if it is determined in step 106 that the duration of the vehicle traveling speed lower than the first preset speed threshold exceeds the first preset duration threshold, then the process proceeds to step 108 to determine the current road segment. Method 100 then proceeds to step 110.

In the specific implementation process, the car navigation device can periodically receive satellite navigation signals, and accordingly determine the current road segment. Alternatively, the in-vehicle navigation device may determine the direction of travel of the vehicle based on the received satellite navigation signals.

In the specific implementation process, the car navigation device can also determine the current road segment and the direction of the horse history by other means.

Subsequently, in the next step 110, a congestion message is issued, which contains the name of the currently located road segment. Alternatively, the congestion message may also include the direction of travel of the vehicle in which the in-vehicle navigation device is located.

In a specific implementation process, the in-vehicle navigation device may include the name of the current road section and the driving direction of the vehicle in the short message (such as but not limited to an SMS message).

In a specific implementation process, the car navigation device may send the congestion message to the traffic supervision server. Finally, method 100 ends at step 112.

2 is a flow chart of a method 200 for reporting a driving condition in accordance with a preferred embodiment of the present invention. As shown in FIG. 2, method 200 begins at step 202.

Then, in the next step 204, the in-vehicle navigation device periodically receives the satellite navigation signal, and accordingly determines the current driving condition information, wherein the current line history information includes the location, the location of the road, the speed of the line, and the direction of the line history.

Subsequently, in a next step 206, the in-vehicle navigation device issues a message containing the current driving condition information.

In a specific implementation process, the car navigation device may use the above message including the current driving condition information. Issued via a short message such as, but not limited to, an SMS message.

Finally, method 200 ends at step 208.

FIG. 3 is a schematic diagram showing the logical structure of a car navigation device 300 according to a preferred embodiment of the present invention. As shown in FIG. 3, the car navigation device 300 includes a detection module 302, a determination module 304, a positioning module 306, and a mobile communication module 308.

The detecting module 302 is configured to detect the duration of the running speed of the vehicle in which the driving speed is lower than the first preset speed threshold. In a specific implementation process, the detecting module 302 can start the timer when detecting that the vehicle traveling speed is lower than the first preset speed threshold. After the timer is started, if it is detected that the vehicle traveling speed is equal to or higher than the first preset speed threshold, the timer is reset. In this way, when the running speed of the vehicle continues to be lower than the first preset speed threshold, the duration of the state can be calculated by the timer, that is, the duration of the vehicle running speed being lower than the first preset speed threshold.

The determining module 304 is communicatively coupled to the detecting module 302 for issuing a positioning notification when it is determined that the running speed of the vehicle where the traveling speed of the vehicle is lower than the first preset speed threshold exceeds the first preset time threshold.

The positioning module 306 is configured to determine the current road segment when the positioning notification is received.

In a specific implementation process, the positioning module 306 can periodically receive satellite navigation signals to determine the current road segment. Alternatively, the positioning module 306 can also determine the direction of travel of the vehicle based on the received satellite navigation signals.

The mobile communication module 308 is configured to issue a congestion message containing the name of the currently located link. Optionally, the direction of travel may also be included in the congestion message.

The mobile communication module 308 can include the congestion message in a short message (e.g., but not limited to an SMS message) during a particular implementation.

4 is a schematic diagram showing the logical structure of a car navigation device 400 in accordance with a preferred embodiment of the present invention. As shown in FIG. 4, the in-vehicle navigation device 400 includes a positioning module 402 and a mobile communication module 404.

The positioning module 402 is configured to periodically receive satellite navigation signals, and thereby determine current driving status information, wherein the current driving status information includes a location, a road segment, a traveling speed, and a driving direction.

The mobile communication module 404 is configured to issue current driving condition information. FIG. 5 is a flow diagram of a smooth path segment reporting method 500 in accordance with a preferred embodiment of the present invention. As shown in FIG. 5, the congestion segment reporting method 500 begins in step 502.

Subsequently, in a next step 504, a duration of time at which the vehicle travel speed is higher than or equal to the second preset speed threshold is detected.

In a specific implementation process, the timer may be started when it is detected that the vehicle traveling speed is higher than or equal to the second preset speed threshold. After the timer is started, if it is detected that the vehicle traveling speed is lower than the second preset speed threshold, the timer is reset. In this way, when the running speed of the vehicle continues to be higher than or equal to the second preset speed threshold, the duration of the state can be calculated by the timer, that is, the running speed of the vehicle is higher than or equal to the duration of the second preset speed threshold. time.

Subsequently, in the next step 506, it is determined whether the duration of the vehicle traveling speed higher than or equal to the second preset speed threshold exceeds the second preset duration threshold, and if so, then proceeds to step 508, otherwise returns to step 104.

As described above, if it is determined in step 506 that the duration of the vehicle traveling speed is higher than or equal to the second preset speed threshold exceeds the second preset duration threshold, then the flow proceeds to step 508 to determine the current road segment. Method 500 then proceeds to step 510.

Subsequently, in the next step 510, a clear message is sent containing the name of the current road segment. Alternatively, the unblocked message may also include the direction of travel of the vehicle in which the in-vehicle navigation device is located.

In a specific implementation process, the car navigation device can send the unblocked message to the traffic supervision server. Finally, method 500 ends at step 512.

FIG. 6 is a schematic diagram showing the logical structure of a car navigation device 600 according to a preferred embodiment of the present invention. As shown in FIG. 6, the car navigation device 600 includes a detection module 602, a determination module 604, and a positioning module 606. And a mobile communication module 608.

The detecting module 602 is configured to detect the duration of the running speed of the vehicle in question being higher than or equal to the second preset speed threshold. In a particular implementation, the detection module 602 can initiate a timer upon detecting that the vehicle travel speed is greater than or equal to the second predetermined speed threshold. After the timer is started, if it is detected that the vehicle traveling speed is lower than the second preset speed threshold, the timer is reset. In this way, when the running speed of the vehicle continues to be higher than or equal to the second preset speed threshold, the duration of the state can be calculated by the timer, that is, the running speed of the vehicle is higher than or equal to the duration of the second preset speed threshold. time.

The determining module 604 is communicatively coupled to the detecting module 602 for issuing a positioning notification when it is determined that the running speed of the vehicle in which the traveling speed of the vehicle is higher than or equal to the second preset speed threshold exceeds the second preset duration threshold.

The location module 606 is configured to determine the current road segment when the location notification is received.

In a specific implementation process, the positioning module 606 can periodically receive satellite navigation signals to determine the current road segment. Alternatively, the positioning module 606 can also determine the direction of travel of the vehicle based on the received satellite navigation signals.

The mobile communication module 608 is used to issue a clear message containing the name of the currently located link. Alternatively, the direction of travel may also be included in the unblocked message.

The mobile communication module 608 can include the unblocked message in a short message (e.g., but not limited to an SMS message) during a particular implementation.

FIG. 7 is a flow chart of a road condition information distribution method 700 in accordance with a preferred embodiment of the present invention. The road condition information publishing method 700 provided by the present invention is used to publish current road condition information of a road segment. As shown in FIG. 7, method 700 begins at step 702.

Subsequently, in a next step 704, a plurality of traffic conditions messages corresponding to the road segments are received. The traffic status of the road segment is recorded in each road condition message, and the road condition state is a congestion state or a clear state.

In a specific implementation process, the above traffic condition message can be received by means of a mobile communication network.

In the specific implementation process, the traffic condition message is a congestion message or a smooth message sent by the car navigation device. Then, in the next step 706, the first road condition indication value of the road segment is calculated according to the received multiple road condition messages.

In the specific implementation process, the first road condition indication value may be comprehensively determined according to the road condition state reflected in each road condition message. For example, the first road condition indication value may be calculated based on a ratio of a congestion state and a clear state of each of the received plurality of road condition messages. For example, if 8 traffic messages are received, 5 traffic messages indicate congestion status, and 3 traffic messages indicate smooth status, the first traffic indication value is 5/8. It can be seen that the first road condition indication value can reflect the congestion condition of the road section. Optionally, the first road condition indication value may also be 3/8, that is, used to reflect the smooth condition of the road segment.

Subsequently, in a next step 708, a second road condition indication value for the road segment is calculated based on the plurality of monitoring data for the road segment.

In the specific implementation process, the second road condition indication value of the road section may also be determined based on multiple monitoring data. For example, the monitoring data may be the traffic condition observed by the traffic supervision center staff based on the cameras set on the road sections. Manually inputting manual input data reflecting the status of the road segment; it may also be network input data for the road segment; or may be traffic flow monitoring data fed back by the automatic monitoring device set in the road segment, such as but not limited to various senses The data fed back by the device; it may also be the historical data of the road segment.

In the specific implementation process, for a car navigation device that does not have a feedback congestion message or a smooth message but can feed back the current location (such as but not limited to latitude and longitude coordinates, speed, direction), it can also be based on the staff (or the system automatically executes) According to the driving speed and the road section of each car navigation device determined by the current position feedback of the plurality of car navigation devices, the congestion state of the corresponding road segment is determined, and corresponding monitoring data is output according to the other monitoring data to jointly calculate the first Two road condition indication values.

In the specific implementation process, the long-term historical data of the same road section can be analyzed, and the normal working days and holiday road conditions of this road section can be statistically calculated, and even the road condition law of a certain time period can be accurately determined. It can be used for road condition information prediction and provides people as a travel reference. Manual input of data can reflect emergencies (such as traffic control) and revisions to road conditions on some sections. The network input data is mainly used to interface with other traffic control websites and similar information sources (such as but not limited to mwww.mapbar.com) to share information and obtain real-time traffic information.

In the specific implementation process, the corresponding weight can be set for each monitoring data, so that The second road condition indication value is calculated in a manner such as, but not limited to, a weighted average.

Subsequently, in a next step 710, an integrated road condition indication value is calculated based on the first road condition indication value and the second road condition indication value. In a specific implementation process, a corresponding weight may be set for the first road condition indication value and the second road condition indication value, so that the integrated road condition indication value may be calculated by using, for example, but not limited to, a weighted average. For example, since the first traffic indication value is more reflective of the current status of the road segment, a larger weight can be set for it. The information reflected by the second road condition value is lagging behind, so it can be set with a smaller weight.

Subsequently, in the next step 712, the current road condition information corresponding to the road segment is issued based on the integrated road condition indication value.

In the specific implementation process, the corresponding road condition information may be searched based on the calculated comprehensive road condition indication value, which may be implemented by integrating the road condition indication value and the road condition information comparison table.

In the specific implementation process, the current road condition information is released in at least one of the following ways:

Voice broadcast

short message;

Web page;

Image

text.

The corresponding publishing route can be sent to, for example, but not limited to, a car navigation device for display and playback through a mobile communication network and related websites.

In the specific implementation process, the current road condition information may also be stored in a corresponding database for the user to query.

In addition, in the specific implementation process, the integrated road condition indication value can also be used for, for example, but not limited to, the state of the traffic signal of the automatic control intersection (such as, but not limited to, changing the length of a certain state of the traffic signal) to alleviate the congestion state.

In a specific implementation process, the method 700 may further include adding the calculated first road condition indication value to the historical data after the current road condition information is released.

Finally, method 700 ends at step 714. The present invention also provides a road condition information distribution system, which will be described in detail below in conjunction with FIG.

FIG. 8 is a schematic diagram showing the logical structure of a road condition information distribution system 800 in accordance with a preferred embodiment of the present invention. The road condition information publishing system provided by the invention is used for publishing current road condition information of a road segment. As shown in FIG. 8, the road condition information distribution system 800 provided by the present invention includes a communication module 802, a first calculation module 804, a second calculation module 806, an integrated calculation module 808, and a distribution module 810.

The communication module 802 is configured to receive a plurality of road condition messages corresponding to the road segment. In a specific implementation process, the communication module 802 can have both line and wireless communication functions.

In a specific implementation process, the operation performed by the communication module 802 is compared with the step 704 in FIG. 7 . The first calculation module 804 is configured to calculate a first road condition indication value of the road segment according to the received multiple road condition messages, where each The traffic status of the road segment is recorded in the traffic condition message, and the traffic state is a congestion state or a clear state.

In a specific implementation process, the operations performed by the first computing module 804 are as described in step 706 of FIG.

The second calculation module 806 is configured to calculate a second road condition indication value of the road segment based on the plurality of monitoring data of the road segment.

In a specific implementation process, the operations performed by the first computing module 806 are as described in step 708 of FIG.

The integrated calculation module 808 is configured to calculate an integrated road condition indication value based on the first road condition indication value and the second road condition indication value.

In a specific implementation process, the operations performed by the integrated computing module 808 are described in relation to step 710 in FIG.

The publishing module 810 is configured to issue current road condition information corresponding to the road segment through the communication module based on the integrated road condition indication value. In the specific implementation process, the operations performed by the publishing module 810 and the steps 712 in FIG. 7 are only the preferred embodiments of the present invention, and are not intended to limit the present invention, and the spirit and principles of the present invention. Any modifications, equivalent substitutions and improvements made within the scope of the present invention are intended to be included within the scope of the present invention.

Claims

Rights request

A method for releasing a road condition information, which is used for publishing current road condition information of a road segment, and is characterized in that:

Receiving a plurality of road condition messages corresponding to the road segment, and calculating a first road condition indication value of the road segment, wherein each road condition message records a road condition state of the road segment, and the road condition state is a congestion state or a clear state;

The road condition information distribution method according to claim 1, wherein the plurality of monitoring data includes historical data of the road segment; the method further includes: after the current road condition information is released, the calculated A traffic indication value is added to the historical data.

The road condition information distribution method according to claim 1 or 2, wherein the plurality of auxiliary monitoring data further includes at least one of the following data:

Manual input of data corresponding to the road segment;

Input data for the network of the road segment;

Traffic monitoring data for this section.

The road condition information issuing method according to claim 3, wherein the calculating the second road condition indication value of the road segment based on the plurality of monitoring data of the road segment further comprises: based on the plurality of monitoring data of the road segment and Corresponding weights are used to calculate a second road condition indication value of the road segment;

The road condition information distribution method according to claim 4, wherein the current road condition information is issued in at least one of the following manners:

Voice broadcast

short message; Web page.

6. A road condition information release system, configured to release current road condition information of a road segment, wherein:

a communication module, configured to receive multiple road condition messages corresponding to the road segment;

a second calculating module, configured to calculate a second road condition indication value of the road segment based on the plurality of monitoring data of the road segment;

An integrated calculation module, configured to calculate an integrated road condition indication value based on the first road condition indication value and the second road condition indication value;

The road condition information distribution system according to claim 6, wherein the plurality of monitoring data includes historical data of the road segment; the publishing module is further configured to: after publishing the current road condition information, The first traffic indication value is added to the historical data.

The road condition information distribution system according to claim 6 or 7, wherein the plurality of auxiliary monitoring data further comprises at least one of the following data:

Manual input of data corresponding to the road segment;

Input data for the network of the road segment;

Traffic monitoring data for this section.

The road condition information issuing system according to claim 8, wherein the second calculating module is further configured to calculate a second road condition indication of the road segment based on the plurality of monitoring data of the road segment and corresponding weights thereof Value

The road condition information distribution system according to claim 9, wherein the current road condition information is issued in at least one of the following manners: Voice broadcast; short message; web page.