CN113380030A - ETC technology-based urban traffic data acquisition method, system and storage medium - Google Patents
ETC technology-based urban traffic data acquisition method, system and storage medium Download PDFInfo
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- CN113380030A CN113380030A CN202110621341.0A CN202110621341A CN113380030A CN 113380030 A CN113380030 A CN 113380030A CN 202110621341 A CN202110621341 A CN 202110621341A CN 113380030 A CN113380030 A CN 113380030A
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- 238000005516 engineering process Methods 0.000 title claims abstract description 27
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- 238000013480 data collection Methods 0.000 claims description 10
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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
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F16/00—Information retrieval; Database structures therefor; File system structures therefor
- G06F16/20—Information retrieval; Database structures therefor; File system structures therefor of structured data, e.g. relational data
- G06F16/23—Updating
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F16/00—Information retrieval; Database structures therefor; File system structures therefor
- G06F16/20—Information retrieval; Database structures therefor; File system structures therefor of structured data, e.g. relational data
- G06F16/24—Querying
- G06F16/245—Query processing
Abstract
The invention provides an ETC technology-based urban traffic data acquisition method, system and storage medium. The method comprises the following steps: acquiring vehicle data; reading the acquired vehicle data, and detecting vehicle information and road information of urban traffic; receiving the detected vehicle information and road information; carrying out data processing on the received vehicle information and road information; and storing the processed vehicle information and road information, matching the vehicle information and the road information with the vehicle information stored in the database of the central control system, and updating the real-time urban traffic database. The method of the invention enables the traffic data acquisition to be more intelligent and networked, saves the labor cost and improves the accuracy and efficiency of the urban traffic information acquisition. The communication protocol between the acquisition devices of the system improves the speed and the accuracy of data acquisition. The technical scheme of the invention solves the problems of inaccurate acquired data, high cost, time waste, low working efficiency and the like in the prior art.
Description
Technical Field
The invention relates to the technical field of urban traffic, in particular to an ETC technology-based urban traffic data acquisition method, system and storage medium.
Background
With the development of economy, vehicles in cities are gradually increased, so that the data acquisition work of urban traffic is particularly difficult, the acquisition speed of the existing traffic information is slow, the acquired data is inaccurate, the cost is high, the time is wasted, and the working efficiency is low, for example:
1. the traditional traffic data acquisition mode is like toroidal coil, and this kind of acquisition mode is higher to the requirement and the standard in the aspect of technique and engineering, also need consider urban road construction quality and vehicle overload scheduling problem simultaneously.
2. Traditional traffic data acquisition mode is like video detection collection technique, and this kind of collection mode can reduce data acquisition's accuracy in some sleet extreme weather, and the cost is higher.
3. Other traffic flow data acquisition devices, such as geomagnetic coils, multi-target radars, and the like, are used only within a certain range and are not laid in a large area.
Disclosure of Invention
According to the technical problems, an ETC technology-based urban traffic data acquisition method, an ETC technology-based urban traffic data acquisition device and a storage medium are provided. The technical means adopted by the invention are as follows:
an ETC technology-based urban traffic data acquisition method comprises the following steps:
acquiring vehicle data;
reading the acquired vehicle data, and detecting vehicle information and road information of urban traffic;
receiving the detected vehicle information and road information;
carrying out data processing on the received vehicle information and road information;
and storing the processed vehicle information and road information, matching the vehicle information and the road information with the vehicle information stored in the database of the central control system, and updating the real-time urban traffic database.
Further, the acquiring vehicle data includes:
vehicle data is acquired by an on-board unit OBU provided on the vehicle.
Further, the reading the acquired vehicle data and detecting vehicle information and road information of urban traffic includes:
the lane equipment RSU is erected at the intersection, when a vehicle passes through the intersection, the vehicle-mounted unit OBU is awakened, the lane equipment RSU reads vehicle data carried by the vehicle-mounted unit OBU, and vehicle information and road information of urban traffic are detected.
Further, the receiving the detected vehicle information and road information includes:
and a traffic control machine is adopted to receive the vehicle information and road information of the urban traffic detected by the lane equipment RSU.
Further, the data processing of the received vehicle information and road information includes:
the calculation center performs calculation processing on the received vehicle information and road information, and the calculation process is as follows:
selecting a lane, and setting the number N of vehicles passing through the lane entrance i in the traffic controller in the initial stateiWhen a vehicle triggers the sensor, the lane equipment RSU and the vehicle-mounted unit OBU start data exchange and send to a database of the central control system, the number of the vehicles starts to be overlapped and counted, and the traffic flow Q of the entrance i is obtainediComprises the following steps:
in the formula: n is a radical ofiThe number of vehicles passing through the access port i; p is the occupancy of ETC vehicles in the city; t is unit time, pcu/h is the number of vehicles passing by a road point in 1 hour, and the total traffic flow of the intersection is as follows:
further, the database of the central control system includes a vehicle information table and a road network evaluation index information table.
The invention also provides an urban traffic data acquisition system based on the urban traffic data acquisition method, which comprises the following steps:
the on-board unit OBU is used for acquiring vehicle data;
the lane equipment RSU is used for reading the acquired vehicle data and detecting vehicle information and road information of urban traffic;
a traffic controller for receiving the detected vehicle information and road information;
the computing center is used for carrying out data processing on the received vehicle information and the received road information;
and the database system is used for storing the processed vehicle information and road information, matching the vehicle information and the road information with the vehicle information stored in the database of the central control system, and updating the real-time urban traffic database.
The present invention also provides a computer-readable storage medium having a set of computer instructions stored therein; the computer instruction set is executed by a processor to realize the urban traffic data acquisition method based on the ETC technology.
Compared with the prior art, the invention has the following advantages:
1. the urban traffic data acquisition method based on the ETC technology provided by the invention has the advantages that the traffic data acquisition is more intelligent and networked, the labor cost is saved, and the accuracy and the efficiency of the urban traffic information acquisition are improved.
2. Compared with the traditional traffic data acquisition mode, the urban traffic data acquisition method based on the ETC technology provided by the invention reduces the damage to the road surface and the corresponding cost.
3. Compared with the traditional vehicle speed judging method, the urban traffic data acquisition method based on the ETC technology has higher real-time performance and accuracy.
4. With the continuous development of the ETC technology, the urban traffic data acquisition method based on the ETC technology provided by the invention can more completely, orderly and fully cover the whole urban traffic data acquisition to form a mature urban traffic network.
5. According to the urban traffic data acquisition system based on the ETC technology, the communication protocol between the acquisition devices improves the speed and accuracy of data acquisition.
Based on the reasons, the invention can be widely popularized in the fields of urban traffic and the like.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
FIG. 1 is a flow chart of the method of the present invention.
Fig. 2 is a schematic diagram of a road device based on the ETC technology according to an embodiment of the present invention.
FIG. 3 is a schematic diagram of the system of the present invention.
Detailed Description
It should be noted that the embodiments and features of the embodiments may be combined with each other without conflict. The present invention will be described in detail below with reference to the embodiments with reference to the attached drawings.
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the invention, its application, or uses. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of exemplary embodiments according to the invention. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, and it should be understood that when the terms "comprises" and/or "comprising" are used in this specification, they specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof, unless the context clearly indicates otherwise.
The relative arrangement of the components and steps, the numerical expressions and numerical values set forth in these embodiments do not limit the scope of the present invention unless specifically stated otherwise. Meanwhile, it should be understood that the sizes of the respective portions shown in the drawings are not drawn in an actual proportional relationship for the convenience of description. Techniques, methods, and apparatus known to those of ordinary skill in the relevant art may not be discussed in detail but are intended to be part of the specification where appropriate. Any specific values in all examples shown and discussed herein are to be construed as exemplary only and not as limiting. Thus, other examples of the exemplary embodiments may have different values. It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, further discussion thereof is not required in subsequent figures.
In the description of the present invention, it is to be understood that the orientation or positional relationship indicated by the directional terms such as "front, rear, upper, lower, left, right", "lateral, vertical, horizontal" and "top, bottom", etc., are generally based on the orientation or positional relationship shown in the drawings, and are used for convenience of description and simplicity of description only, and in the absence of any contrary indication, these directional terms are not intended to indicate and imply that the device or element so referred to must have a particular orientation or be constructed and operated in a particular orientation, and therefore should not be considered as limiting the scope of the present invention: the terms "inner and outer" refer to the inner and outer relative to the profile of the respective component itself.
Spatially relative terms, such as "above … …," "above … …," "above … …," "above," and the like, may be used herein for ease of description to describe one device or feature's spatial relationship to another device or feature as illustrated in the figures. It will be understood that the spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if a device in the figures is turned over, devices described as "above" or "on" other devices or configurations would then be oriented "below" or "under" the other devices or configurations. Thus, the exemplary term "above … …" can include both an orientation of "above … …" and "below … …". The device may be otherwise variously oriented (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.
It should be noted that the terms "first", "second", and the like are used to define the components, and are only used for convenience of distinguishing the corresponding components, and the terms have no special meanings unless otherwise stated, and therefore, the scope of the present invention should not be construed as being limited.
As shown in fig. 1, the present invention provides an urban traffic data acquisition method based on ETC technology, including:
s1, acquiring vehicle data;
in a specific implementation manner, as a preferred embodiment of the present invention, the acquiring vehicle data includes:
vehicle data is acquired by an on-board unit OBU provided on the vehicle.
S2, reading the acquired vehicle data, and detecting vehicle information and road information of urban traffic;
in specific implementation, as a preferred embodiment of the present invention, the reading the acquired vehicle data and detecting vehicle information and road information of urban traffic includes:
the lane equipment RSU is erected at the intersection, when a vehicle passes through the intersection, the vehicle-mounted unit OBU is awakened, the lane equipment RSU reads vehicle data carried by the vehicle-mounted unit OBU, and vehicle information and road information of urban traffic are detected.
S3, receiving the detected vehicle information and road information;
in a specific implementation, as a preferred embodiment of the present invention, the receiving the detected vehicle information and road information includes:
and a traffic control machine is adopted to receive the vehicle information and road information of the urban traffic detected by the lane equipment RSU.
S4, carrying out data processing on the received vehicle information and road information;
in a specific implementation, as a preferred embodiment of the present invention, the data processing of the received vehicle information and road information includes:
the calculation center performs calculation processing on the received vehicle information and road information, and the calculation process is as follows:
as shown in fig. 2, taking a bidirectional lane at an intersection as an example, lane antennas are arranged at bidirectional entrances and exits in four directions, east, west, south and north, and 8 lane devices RSU are placed at each intersection. Selecting a lane, and setting the number N of vehicles passing through the lane entrance i in the traffic controller in the initial stateiWhen a vehicle triggers the sensor, the lane equipment RSU and the vehicle-mounted unit OBU start data exchange and send to a database of the central control system, the number of the vehicles starts to be overlapped and counted, and the traffic flow Q of the entrance i is obtainediComprises the following steps:
in the formula: n is a radical ofiThe number of vehicles passing through the access port i; p is the occupancy of ETC vehicles in the city; t is unit time, pcu/h is the number of vehicles passing by a certain highway point in 1 hour, and the total traffic flow of the intersection is as follows:
and S5, storing the processed vehicle information and road information, matching the vehicle information and the road information with the vehicle information stored in the database of the central control system, and updating the real-time urban traffic database.
In a concrete implementation, as a preferred embodiment of the present invention, the database of the central control system includes a vehicle information table and a road network evaluation index information table. In this embodiment, a database named db _ etccata is established in the database, and in order to separately arrange the vehicle and road related information, a vehicle information table named db _ etccra is also established, and a road network evaluation table named db _ roda _ data is used for storing traffic data.
Corresponding to the urban traffic data collection method based on the ETC technology in the application, the application also provides an urban traffic data collection system based on the ETC technology, as shown in FIG. 3, including: an on-board unit OBU101, a lane device RSU102, a traffic control machine 103, a database system 104 and a calculation center 105; wherein:
the on-board unit OBU101 is used for acquiring vehicle data;
the lane equipment RSU102 is used for reading the acquired vehicle data and detecting vehicle information and road information of urban traffic;
a traffic controller 103 for receiving the detected vehicle information and road information;
a calculation center 105 for performing data processing on the received vehicle information and road information;
and the database system 104 is used for storing the processed vehicle information and road information, matching the vehicle information and the road information with the vehicle information stored in the database of the central control system, and updating the real-time urban traffic database.
For the embodiments of the present invention, the description is simple because it corresponds to the above embodiments, and for the related similarities, please refer to the description in the above embodiments, and the detailed description is omitted here.
The embodiment of the application also discloses a computer-readable storage medium, wherein a computer instruction set is stored in the computer-readable storage medium, and when being executed by a processor, the computer instruction set realizes the ETC technology-based urban traffic data acquisition method provided by any one of the above embodiments.
In the embodiments provided in the present application, it should be understood that the disclosed technology can be implemented in other ways. The above-described embodiments of the apparatus are merely illustrative, and for example, the division of the units may be a logical division, and in actual implementation, there may be another division, for example, multiple units or components may be combined or integrated into another system, or some features may be omitted, or not executed. In addition, the shown or discussed mutual coupling or direct coupling or communication connection may be an indirect coupling or communication connection through some interfaces, units or modules, and may be in an electrical or other form.
The units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of units. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of the embodiment.
In addition, functional units in the embodiments of the present invention may be integrated into one processing unit, or each unit may exist alone physically, or two or more units are integrated into one unit. The integrated unit can be realized in a form of hardware, and can also be realized in a form of a software functional unit.
The integrated unit, if implemented in the form of a software functional unit and sold or used as a stand-alone product, may be stored in a computer readable storage medium. Based on such understanding, the technical solution of the present invention may be embodied in the form of a software product, which is stored in a storage medium and includes instructions for causing a computer device (which may be a personal computer, a server, or a network device) to execute all or part of the steps of the method according to the embodiments of the present invention. And the aforementioned storage medium includes: a U-disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a removable hard disk, a magnetic or optical disk, and other various media capable of storing program codes.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; while the invention has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present invention.
Claims (8)
1. An ETC technology-based urban traffic data acquisition method is characterized by comprising the following steps:
acquiring vehicle data;
reading the acquired vehicle data, and detecting vehicle information and road information of urban traffic;
receiving the detected vehicle information and road information;
carrying out data processing on the received vehicle information and road information;
and storing the processed vehicle information and road information, matching the vehicle information and the road information with the vehicle information stored in the database of the central control system, and updating the real-time urban traffic database.
2. The ETC technology-based urban traffic data collection method according to claim 1, wherein the acquiring vehicle data comprises:
vehicle data is acquired by an on-board unit OBU provided on the vehicle.
3. The ETC technology-based urban traffic data collection method according to claim 1, wherein the reading of the acquired vehicle data and the detection of vehicle information and road information of urban traffic comprises:
the lane equipment RSU is erected at the intersection, when a vehicle passes through the intersection, the vehicle-mounted unit OBU is awakened, the lane equipment RSU reads vehicle data carried by the vehicle-mounted unit OBU, and vehicle information and road information of urban traffic are detected.
4. The ETC technology-based urban traffic data collection method according to claim 1, wherein the receiving the detected vehicle information and road information comprises:
and a traffic control machine is adopted to receive the vehicle information and road information of the urban traffic detected by the lane equipment RSU.
5. The ETC technology-based urban traffic data collection method according to claim 1, wherein the data processing of the received vehicle information and road information comprises:
the calculation center performs calculation processing on the received vehicle information and road information, and the calculation process is as follows:
selecting a lane, and setting the number N of vehicles passing through the lane entrance i in the traffic controller in the initial stateiWhen a vehicle triggers the sensor, the lane equipment RSU and the vehicle-mounted unit OBU start data exchange and send to a database of the central control system, the number of the vehicles starts to be overlapped and counted, and the traffic flow Q of the entrance i is obtainediComprises the following steps:
in the formula: n is a radical ofiThe number of vehicles passing through the access port i; p is the occupancy of ETC vehicles in the city; t is unit time, pcu/h is the number of vehicles passing by a road point in 1 hour, and the total traffic flow of the intersection is as follows:
6. the ETC technology-based urban traffic data collection method according to claim 1, wherein the database of the central control system comprises a vehicle information table and a road network evaluation index information table.
7. An urban traffic data collection system based on the urban traffic data collection method according to any one of claims 1 to 6, comprising:
the on-board unit OBU is used for acquiring vehicle data;
the lane equipment RSU is used for reading the acquired vehicle data and detecting vehicle information and road information of urban traffic;
a traffic controller for receiving the detected vehicle information and road information;
the computing center is used for carrying out data processing on the received vehicle information and the received road information;
and the database system is used for storing the processed vehicle information and road information, matching the vehicle information and the road information with the vehicle information stored in the database of the central control system, and updating the real-time urban traffic database.
8. A computer-readable storage medium having a set of computer instructions stored therein; the set of computer instructions, when executed by a processor, implements a method for urban traffic data collection based on ETC technology according to any one of claims 1 to 6.
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Application publication date: 20210910 |