CN113487866A - Traffic management system based on multi-source heterogeneous data fusion technology - Google Patents
Traffic management system based on multi-source heterogeneous data fusion technology Download PDFInfo
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- G—PHYSICS
- G08—SIGNALLING
- G08G—TRAFFIC CONTROL SYSTEMS
- G08G1/00—Traffic control systems for road vehicles
- G08G1/01—Detecting movement of traffic to be counted or controlled
- G08G1/0104—Measuring and analyzing of parameters relative to traffic conditions
- G08G1/0125—Traffic data processing
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- G—PHYSICS
- G08—SIGNALLING
- G08G—TRAFFIC CONTROL SYSTEMS
- G08G1/00—Traffic control systems for road vehicles
- G08G1/01—Detecting movement of traffic to be counted or controlled
- G08G1/0104—Measuring and analyzing of parameters relative to traffic conditions
- G08G1/0137—Measuring and analyzing of parameters relative to traffic conditions for specific applications
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- G—PHYSICS
- G08—SIGNALLING
- G08G—TRAFFIC CONTROL SYSTEMS
- G08G1/00—Traffic control systems for road vehicles
- G08G1/09—Arrangements for giving variable traffic instructions
- G08G1/0962—Arrangements for giving variable traffic instructions having an indicator mounted inside the vehicle, e.g. giving voice messages
- G08G1/0968—Systems involving transmission of navigation instructions to the vehicle
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- G—PHYSICS
- G08—SIGNALLING
- G08G—TRAFFIC CONTROL SYSTEMS
- G08G1/00—Traffic control systems for road vehicles
- G08G1/123—Traffic control systems for road vehicles indicating the position of vehicles, e.g. scheduled vehicles; Managing passenger vehicles circulating according to a fixed timetable, e.g. buses, trains, trams
- G08G1/133—Traffic control systems for road vehicles indicating the position of vehicles, e.g. scheduled vehicles; Managing passenger vehicles circulating according to a fixed timetable, e.g. buses, trains, trams within the vehicle ; Indicators inside the vehicles or at stops
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Abstract
The invention relates to the technical field of intelligent traffic, in particular to a traffic management system based on a multi-source heterogeneous data fusion technology. The vehicle-mounted terminal collects vehicle data and uploads the vehicle data to the cloud platform, and the cloud platform receives the vehicle data and collects GIS data and then obtains road information through multi-element heterogeneous data fusion. When a user of the vehicle-mounted terminal meets an emergency situation, such as emergency medical treatment, the emergency traffic information can be sent to the cloud platform through the vehicle-mounted terminal, the cloud platform carries out route planning according to the real-time position and the destination of the user, generates avoidance information and sends the avoidance information to other terminals on the route to prompt the other terminals to carry out avoidance, and an emergency channel is opened for the user to pass through. The scheme saves driving time for the emergency vehicle by opening up the emergency road for the emergency vehicle to pass through, avoids the user from missing the best rescue opportunity, and is favorable for property safety or life safety of people.
Description
Technical Field
The invention relates to the technical field of intelligent traffic, in particular to a traffic management system based on a multi-source heterogeneous data fusion technology.
Background
With the rapid development of social economy, motor vehicles have become popular in people's lives, and the number of motor vehicles is increased rapidly, and meanwhile, the problem of traffic jam is brought to urban traffic. However, if emergency situations such as fire fighting actions of fire fighting vehicles, emergency rescue of medical vehicles, and the event that a patient goes to a hospital for rescue are extremely time-consuming, traffic jam may have serious consequences when the traffic jam occurs on a driving route. Therefore, there is a need for a traffic management system that can allow a target vehicle to quickly pass through a traffic jam section in an emergency.
Disclosure of Invention
The invention solves the technical problem that fire fighting and ambulance vehicles are difficult to rapidly pass through the traffic jam road section.
The basic scheme provided by the invention is as follows: the traffic management system based on the multi-source heterogeneous data fusion technology comprises a vehicle-mounted terminal and a cloud platform; the vehicle-mounted terminal comprises a first data acquisition module, an RTU, an emergency passing module and a display module; the cloud platform comprises a second data acquisition module, a communication module, a data fusion module, a route planning module and an avoidance notification module;
the first data acquisition module is used for acquiring vehicle data, the RTU is used for establishing wireless connection between the vehicle-mounted terminal and the cloud platform, the emergency passing module is used for sending emergency passing information to the cloud platform, and the display module is used for displaying avoidance information;
the second data acquisition module is used for acquiring GIS data, and the data fusion module is used for obtaining road information through multi-element heterogeneous data fusion according to vehicle data and GIS data; the route planning module is used for planning a driving route according to the road information; the avoidance notification module is used for generating avoidance information; the communication module is used for sending the driving route to the vehicle-mounted terminal where the user is located, and is also used for sending the avoidance information to other vehicle-mounted terminals on the driving route; the avoidance information is used for prompting users of other vehicle-mounted terminals to drive vehicles to avoid, and an emergency channel is opened for target vehicles to pass through.
The principle and the advantages of the invention are as follows: according to the method, the road information is obtained by collecting the vehicle data and the GIS data after fusion, the driving route is planned according to the road information, the avoidance information is generated through the cloud platform and is sent to other vehicle-mounted terminals on the driving route, and users of the other vehicle-mounted terminals are prompted to drive the vehicle for avoidance, so that an emergency channel is opened and provided for the target vehicle to pass through. According to the scheme, the avoidance information is sent to other vehicles on the running road section, the other vehicles are prompted to avoid in advance, an emergency road is opened up for the target vehicle to pass, the running time of the target vehicle is saved, the user is prevented from missing the optimal rescue opportunity, and the property safety or the life safety of people are facilitated.
Further, the first data acquisition module comprises a timer, a positioning module and a vehicle speed acquisition module;
the positioning module is used for acquiring position information, and the vehicle speed acquisition module is used for acquiring vehicle speed information; the timer is used for controlling the data acquisition frequency of the positioning module and the vehicle speed acquisition module.
Has the advantages that: the data acquisition frequency is controlled by the timer, so that the energy-saving effect is achieved while the excessive repeated invalid data is avoided.
Further, the emergency passing module comprises an information input module and a destination selection module;
the information input module is used for inputting accident information; the destination selection module is used for selecting the position of a destination for emergency traffic; the emergency traffic information includes accident information and destination location information.
Has the advantages that: and the situation emergency degree of the user can be conveniently known by uploading the accident information.
Further, the information input module comprises an audio recording module, a video recording module and a text input module;
the audio recording module is used for recording voice data of a user, the video recording module is used for recording video data of the user, and the text input module is used for recording text data of the user; the accident information includes voice data, video data, and text data.
Has the advantages that: the accident information is described in an audio, video and text mode, so that the accident description is more accurate, and the information reliability is increased.
Further, the route planning module comprises a road condition analysis module and a route selection module;
the road condition analysis module is used for analyzing road conditions according to road information, and the road information comprises the length of an interval road section, the total number of vehicles in the interval road section, the position information of each vehicle and the time for each vehicle to pass through the interval road section;
the route selection module is used for selecting a driving route according to road conditions.
Has the advantages that: the road condition is analyzed according to various elements in the road information, so that the analysis is more accurate, and the condition that the selected road is not beneficial to avoidance due to too much congestion can be avoided by selecting the driving route according to the road condition.
Further, the road condition analysis module comprises a congestion degree evaluation module and a road condition evaluation module;
the congestion degree evaluation module is used for evaluating the traffic congestion degree of the section road;
the road condition evaluation module is used for evaluating road conditions according to the traffic congestion degree, the length of the road in the section and the total number of vehicles in the road section in the section.
Has the advantages that: the traffic jam of the section road is mostly caused by the jam of the intersection, so the traffic jam degree can reflect the jam condition of the intersection of the road, and the total number of vehicles of the section road influences the time spent for avoiding the vehicles, so the evaluation of the road condition by the traffic jam degree and the total number of the vehicles of the section road can ensure that the evaluation result is more accurate.
Further, the congestion degree evaluation module stores a corresponding relation table of the average travel speed of the section and the congestion degree, and the congestion degree can be obtained from the corresponding relation table of the average travel speed of the section and the congestion degree according to the average travel speed of the section;
the average travel speed of the interval road section is obtained by calculation of a congestion degree evaluation module according to road information, and the calculation formula of the average travel speed of the interval road section is as follows:
in the formula (I), the compound is shown in the specification,
is the average travel speed of the block section, L is the length of the block section, tiThe time when the vehicle i passes through the block section, and n is the number of measured vehicles.
Has the advantages that: and deducing the road congestion degree according to the average travel speed of the section road.
Further, the avoidance information includes emergency traffic information and real-time position information of the user.
Has the advantages that: the real-time position information of the user is sent to other terminals on the road, so that the other terminals can know the real-time position of the user, and the user can timely recover normal traffic after passing through the road section of the user.
Further, the display module is also used for displaying real-time position information of the user in emergency traffic on the road.
Has the advantages that: the real-time position of the user is displayed through the display module, so that the user at other terminals can conveniently check the position.
Drawings
Fig. 1 is a logic block diagram of a traffic management system based on a multivariate heterogeneous data fusion technology in the invention.
Detailed Description
The following is further detailed by way of specific embodiments:
the specific implementation process is as follows:
example one
In the first embodiment, as shown in fig. 1, the traffic management system based on the multi-source heterogeneous data fusion technology includes a vehicle-mounted terminal and a cloud platform, and the vehicle-mounted terminal and the cloud platform are wirelessly connected. The vehicle-mounted terminal collects vehicle data and uploads the vehicle data to the cloud platform, and the cloud platform receives the vehicle data and collects GIS data and then obtains road information through multi-element heterogeneous data fusion. When a user of the vehicle-mounted terminal meets an emergency situation and needs to seek medical help urgently, the vehicle-mounted terminal can send urgent traffic information to the cloud platform, the cloud platform carries out route planning according to the real-time position and the destination of the user, generates avoidance information and sends the avoidance information to other terminals on the route to prompt the other terminals to avoid in advance, and an urgent channel is opened in time to allow the user to pass through.
Specifically, the vehicle-mounted terminal comprises a first data acquisition module, an emergency traffic module, an RTU and a display module. The first data acquisition module is used for acquiring vehicle data of a user, and comprises a positioning module, a timer and a vehicle speed acquisition module, wherein the positioning module in the embodiment adopts BC35-A and is positioned through a Beidou system; the vehicle speed acquisition module is used for acquiring the running speed of the vehicle; the timer adopts LPC2129 timer, the timer is used for controlling the data acquisition frequency of the positioning module and the vehicle speed acquisition module, the data acquisition frequency in the embodiment is once every two seconds, and the vehicle data are uploaded to the cloud platform through RUT after being acquired.
The emergency passing module in the embodiment comprises an information input module and a destination selection module, wherein the information input module also comprises an audio input module, a video input module and a text input module. When a user meets an emergency, if the user needs to seek medical emergencies, information input in modes of audio, video, text and the like is carried out through the information module, the user inputs the emergency of the user to generate accident information, then the destination is selected through the destination selection module, and after the destination is selected, the vehicle-mounted terminal generates emergency traffic information according to the destination and the accident information and uploads the emergency traffic information to the cloud platform through the RTU.
The cloud platform in the embodiment comprises a second data acquisition module, a data fusion module, a communication module, a route planning module and a notification avoidance module. The communication module is used for establishing wireless connection with the vehicle-mounted terminal. The second data acquisition module is used for acquiring GIS data, the GIS data in the embodiment is acquired in a resource environment scientific data center of China academy of sciences, after the communication module receives vehicle data transmitted by the vehicle-mounted terminal, the data fusion module can correct the GIS data according to the vehicle data through a multivariate heterogeneous data fusion technology and generate road information, and the road information comprises the length of an interval road section, the total number of vehicles in the interval road section, the position information of each vehicle and the time for each vehicle to pass through the interval road section. In this embodiment, after receiving the emergency traffic information uploaded by the user terminal, the cloud platform performs route planning according to the road information and the emergency traffic information through the route planning module. The route planning module comprises a road condition analysis module and a route selection module, and the route planning module also comprises a congestion degree evaluation module and a road condition evaluation module. The congestion degree evaluation module calculates the average travel speed of the section according to the road information and then deduces the congestion degree of the road according to a corresponding relation table of the average travel speed of the section and the congestion degree, wherein the calculation formula of the average travel speed of the section is as follows:
in the formula (I), the compound is shown in the specification,
is the average travel speed of the block section, L is the length of the block section, tiThe time when the vehicle i passes through the block section, and n is the number of measured vehicles.
The correspondence table between the average travel speed of the section link and the degree of congestion in the present embodiment is shown in table 1.
Table 1 comparison table of average travel speed and congestion degree of section
After the road congestion degree is deduced, the road condition evaluation module evaluates the road condition according to the road congestion degree, the length of the section road section and the total number of vehicles in the section road section, the route selection module selects a driving route according to road conditions, after the route selection module selects the driving route, the avoidance notification module generates avoidance information according to the driving route and the emergency traffic information, the avoidance information comprises a driving route, accident information and real-time position information of the user terminal, the communication module sends the avoidance information to other user terminals on the driving route, after the other user terminals receive the avoidance information, the display module displays the accident information to other users, and then generating a driving route in the avoidance information and displaying the real-time position of the user terminal which sends the emergency avoidance information on the driving route for other users to refer to for avoidance and reset.
The foregoing are merely exemplary embodiments of the present invention, and no attempt is made to show structural details of the invention in more detail than is necessary for the fundamental understanding of the art, the description taken with the drawings making apparent to those skilled in the art how the several forms of the invention may be embodied in practice with the teachings of the invention. It should be noted that, for those skilled in the art, without departing from the structure of the present invention, several changes and modifications can be made, which should also be regarded as the protection scope of the present invention, and these will not affect the effect of the implementation of the present invention and the practicability of the patent. The scope of the claims of the present application shall be determined by the contents of the claims, and the description of the embodiments and the like in the specification shall be used to explain the contents of the claims.
Claims (9)
1. Traffic management system based on multisource heterogeneous data fusion technique, its characterized in that: the system comprises a vehicle-mounted terminal and a cloud platform; the vehicle-mounted terminal comprises a first data acquisition module, an RTU, an emergency passing module and a display module; the cloud platform comprises a second data acquisition module, a communication module, a data fusion module, a route planning module and an avoidance notification module;
the first data acquisition module is used for acquiring vehicle data, the RTU is used for establishing wireless connection between the vehicle-mounted terminal and the cloud platform, the emergency passing module is used for sending emergency passing information to the cloud platform, and the display module is used for displaying avoidance information;
the second data acquisition module is used for acquiring GIS data, and the data fusion module is used for obtaining road information through multi-element heterogeneous data fusion according to vehicle data and GIS data; the route planning module is used for planning a driving route according to the road information; the avoidance notification module is used for generating avoidance information; the communication module is used for sending the driving route to the vehicle-mounted terminal where the user is located, and is also used for sending the avoidance information to other vehicle-mounted terminals on the driving route; the avoidance information is used for prompting users of other vehicle-mounted terminals to drive vehicles to avoid, and an emergency channel is opened for target vehicles to pass through.
2. The traffic management system based on the multi-source heterogeneous data fusion technology according to claim 1, characterized in that: the first data acquisition module comprises a timer, a positioning module and a vehicle speed acquisition module;
the positioning module is used for acquiring position information, and the vehicle speed acquisition module is used for acquiring vehicle speed information; the timer is used for controlling the data acquisition frequency of the positioning module and the vehicle speed acquisition module.
3. The traffic management system based on the multi-source heterogeneous data fusion technology according to claim 2, characterized in that: the emergency passing module comprises an information input module and a destination selection module;
the information input module is used for inputting accident information; the destination selection module is used for selecting the position of a destination for emergency traffic; the emergency traffic information includes accident information and destination location information.
4. The traffic management system based on the multi-source heterogeneous data fusion technology according to claim 3, characterized in that: the information input module comprises an audio recording module, a video recording module and a text input module;
the audio recording module is used for recording voice data of a user, the video recording module is used for recording video data of the user, and the text input module is used for recording text data of the user; the accident information includes voice data, video data, and text data.
5. The traffic management system based on the multi-source heterogeneous data fusion technology according to claim 4, wherein: the route planning module comprises a road condition analysis module and a route selection module;
the road condition analysis module is used for analyzing road conditions according to road information, and the road information comprises the length of an interval road section, the total number of vehicles in the interval road section, the position information of each vehicle and the time for each vehicle to pass through the interval road section;
the route selection module is used for selecting a driving route according to road conditions.
6. The traffic management system based on the multi-source heterogeneous data fusion technology according to claim 5, wherein: the road condition analysis module comprises a congestion degree evaluation module and a road condition evaluation module;
the congestion degree evaluation module is used for evaluating the traffic congestion degree of the section road;
the road condition evaluation module is used for evaluating road conditions according to the traffic congestion degree, the length of the section road sections and the total number of vehicles in the section road sections.
7. The traffic management system based on the multi-source heterogeneous data fusion technology according to claim 6, wherein: the congestion degree evaluation module is used for storing a corresponding relation table of the average travel speed of the section and the congestion degree, and the congestion degree can be obtained from the corresponding relation table of the average travel speed of the section and the congestion degree according to the average travel speed of the section;
the average travel speed of the interval road section is obtained by calculation of a congestion degree evaluation module according to road information, and the calculation formula of the average travel speed of the interval road section is as follows:
in the formula (I), the compound is shown in the specification,
is the average travel speed of the block section, L is the length of the block section, tiThe time when the vehicle i passes through the block section, and n is the number of measured vehicles.
8. The traffic management system based on the multi-source heterogeneous data fusion technology according to claim 7, wherein: the avoidance information comprises emergency traffic information and real-time position information of the user.
9. The traffic management system based on the multi-source heterogeneous data fusion technology according to claim 8, wherein: the display module is also used for displaying real-time position information of the user in emergency traffic on the road.
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