CN111354190A - Method and device for detecting vehicle by combining RSU and video stream - Google Patents
Method and device for detecting vehicle by combining RSU and video stream Download PDFInfo
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- CN111354190A CN111354190A CN202010167628.6A CN202010167628A CN111354190A CN 111354190 A CN111354190 A CN 111354190A CN 202010167628 A CN202010167628 A CN 202010167628A CN 111354190 A CN111354190 A CN 111354190A
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- 238000001514 detection method Methods 0.000 claims abstract description 81
- 238000010191 image analysis Methods 0.000 claims abstract description 74
- 238000004891 communication Methods 0.000 claims abstract description 44
- 230000004048 modification Effects 0.000 description 2
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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
- G08G1/017—Detecting movement of traffic to be counted or controlled identifying vehicles
- G08G1/0175—Detecting movement of traffic to be counted or controlled identifying vehicles by photographing vehicles, e.g. when violating traffic rules
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- G—PHYSICS
- G07—CHECKING-DEVICES
- G07B—TICKET-ISSUING APPARATUS; FARE-REGISTERING APPARATUS; FRANKING APPARATUS
- G07B15/00—Arrangements or apparatus for collecting fares, tolls or entrance fees at one or more control points
- G07B15/06—Arrangements for road pricing or congestion charging of vehicles or vehicle users, e.g. automatic toll systems
- G07B15/063—Arrangements for road pricing or congestion charging of vehicles or vehicle users, e.g. automatic toll systems using wireless information transmission between the vehicle and a fixed station
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Abstract
The invention discloses a method and a device for detecting a vehicle by combining an RSU and a video stream, comprising the following steps: the method comprises the steps that an image acquisition module acquires video stream images of a vehicle; the image processing module carries out image processing on the video stream image to obtain a high-definition video stream image; the image analysis module performs image analysis on the high-definition video stream image and identifies vehicle information; the RSU detection module detects a signal of the vehicle-mounted OBU unit in real time, establishes communication and reads vehicle information of the vehicle-mounted OBU unit; the RSU detection module is linked with the image acquisition module to capture the vehicle image; and the central control unit sends the vehicle information and the captured vehicle image to the outside by detecting the vehicle information identified by time matching and the read vehicle information. The invention adopts the RSU antenna and the video stream image to jointly detect the vehicle information, solves the problem that the vehicle passing road section cannot be identified when the communication between the RSU antenna and the vehicle-mounted OBU unit is unsuccessful, and ensures that the ETC electronic toll collection system is more reliable and efficient.
Description
Technical Field
The invention relates to the technical field of vehicle detection, in particular to a method and a device for jointly detecting a vehicle by an RSU and a video stream.
Background
At present, an ETC electronic toll collection system detects a vehicle-mounted OBU unit by adopting an RSU antenna (road side unit), and reads vehicle information on the vehicle-mounted OBU unit after a response is obtained and a communication connection is established. If the RSU antenna and the vehicle-mounted OBU unit are damaged or shielded, communication connection cannot be established, information of a vehicle passing highway section cannot be identified, and the payment basis cannot be generated, so that the problems of payment omission, wrong charging and the like are caused.
Disclosure of Invention
In view of the above problems in the prior art, the present invention provides a method and apparatus for detecting a vehicle by combining an RSU and a video stream.
The invention discloses a method for detecting a vehicle by combining an RSU (remote subscriber Unit) and a video stream, which comprises the following steps:
collecting video stream images of a vehicle;
performing image processing on the video stream image to obtain a high-definition video stream image;
carrying out image analysis on the high-definition video stream image, and identifying vehicle information;
detecting a signal of a vehicle-mounted OBU unit in real time, establishing communication and reading vehicle information of the vehicle-mounted OBU unit;
capturing a vehicle image;
and matching the identified vehicle information with the read vehicle information at the detection time, and sending the vehicle information and the captured vehicle image to the outside.
As a further improvement of the invention, the specific implementation of the method comprises the following steps:
the method comprises the steps that an image acquisition module acquires video stream images of a vehicle;
the image processing module carries out image processing on the video stream image to obtain a high-definition video stream image;
the image analysis module is used for carrying out image analysis on the high-definition video stream image and identifying vehicle information;
the RSU detection module detects a signal of a vehicle-mounted OBU unit in real time, establishes communication and reads vehicle information of the vehicle-mounted OBU unit;
the RSU detection module is linked with the image acquisition module to capture the vehicle image;
and the central control unit sends the vehicle information and the captured vehicle image to the outside by detecting the vehicle information identified by time matching and the read vehicle information.
As a further improvement of the present invention,
the image processing comprises the steps of adjusting the brightness of the environment and removing noise points;
the vehicle information comprises a license plate number, a license plate color, a vehicle body color and a vehicle type.
As a further improvement of the present invention, the vehicle information identified by the image analysis module and the vehicle information read by the RSU detection module are matched at the detection time, and the vehicle information and the captured vehicle image are sent to the outside; the method comprises the following steps:
when the vehicle information identified by the image analysis module is matched with the time point of the vehicle information read by the RSU detection module, the vehicle information identified by the image analysis module, the vehicle information read by the RSU detection module and a vehicle image captured by the image analysis module and the RSU detection module in a linkage mode are output simultaneously;
when the time point of the vehicle information identified by the image analysis module is not matched with the time point of the vehicle information read by the RSU detection module, outputting the vehicle information identified by the image analysis module and a vehicle image captured by the image analysis module and the RSU detection module in a linkage manner;
and when the time point of the vehicle information read by the RSU detection module is not matched with the time point of the vehicle information identified by the image analysis module, outputting the vehicle information read by the RSU detection module and a vehicle image which is captured by the image analysis module and the RSU detection module in a linkage manner.
As a further improvement of the invention, the central control unit sends the vehicle information and the captured vehicle image to the outside through the external communication module;
the external communication module comprises one or more of a wireless communication interface, a wired communication interface and an I/O communication interface.
The invention also discloses a device for detecting the vehicle by combining the RSU and the video stream, which comprises the following components:
the image acquisition module is used for acquiring video stream images of the vehicle;
the image processing module is used for carrying out image processing on the video stream image to obtain a high-definition video stream image;
the image analysis module is used for carrying out image analysis on the high-definition video stream image and identifying vehicle information;
the RSU detection module is used for detecting signals of the vehicle-mounted OBU unit in real time, establishing communication and reading vehicle information of the vehicle-mounted OBU unit; the image acquisition module is linked to capture the vehicle image;
and the central control unit is used for matching the vehicle information identified by the image analysis module and the vehicle information read by the RSU detection module with detection time and sending the vehicle information and the captured vehicle image to the outside.
As a further improvement of the invention, the image processing comprises the steps of adjusting the ambient light brightness and removing noise points.
As a further improvement of the invention, the vehicle information comprises a license plate number, a license plate color, a vehicle body color and a vehicle type.
As a further improvement of the present invention, the vehicle information identified by the image analysis module and the vehicle information read by the RSU detection module are matched at the detection time, and the vehicle information and the captured vehicle image are sent to the outside; the method comprises the following steps:
when the vehicle information identified by the image analysis module is matched with the time point of the vehicle information read by the RSU detection module, the vehicle information identified by the image analysis module, the vehicle information read by the RSU detection module and a vehicle image captured by the image analysis module and the RSU detection module in a linkage mode are output simultaneously;
when the time point of the vehicle information identified by the image analysis module is not matched with the time point of the vehicle information read by the RSU detection module, outputting the vehicle information identified by the image analysis module and a vehicle image captured by the image analysis module and the RSU detection module in a linkage manner;
and when the time point of the vehicle information read by the RSU detection module is not matched with the time point of the vehicle information identified by the image analysis module, outputting the vehicle information read by the RSU detection module and a vehicle image which is captured by the image analysis module and the RSU detection module in a linkage manner.
As a further improvement of the invention, the method also comprises the following steps:
and the external communication module comprises one or more of a wireless communication interface, a wired communication interface and an I/O communication interface and is used for providing an interface for externally transmitting the vehicle information and the vehicle image.
Compared with the prior art, the invention has the beneficial effects that:
the invention adopts the RSU detection module (RSU antenna) and the video stream image to jointly detect the vehicle information, solves the problem that the vehicle passing road section cannot be identified when the communication between the RSU antenna and the vehicle-mounted OBU unit is unsuccessful, and ensures that the ETC electronic toll collection system is more reliable and efficient.
Drawings
FIG. 1 is a flow chart of a method for detecting a vehicle by combining an RSU and a video stream according to an embodiment of the present invention;
fig. 2 is a block diagram of an apparatus for detecting a vehicle by combining an RSU and a video stream according to an embodiment of the present invention.
In the figure:
1. an RSU detection module; 2. an image acquisition module; 3. an image processing module; 4. an image analysis module; 5. a central control unit; 6. and an external communication module.
Detailed Description
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 some, but not all, embodiments of the present invention. All other embodiments, which can be obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, are within the scope of the present invention.
The invention is described in further detail below with reference to the attached drawing figures:
as shown in fig. 1, the problem that a vehicle passing road section cannot be identified when the existing RSU antenna and the vehicle-mounted OBU unit are unsuccessfully communicated is solved; the invention provides a method for detecting a vehicle by combining an RSU (remote subscriber Unit) and a video stream, which comprises the following steps:
s1, collecting video stream images of the vehicle;
s2, performing image processing on the video stream image to obtain a high-definition video stream image;
s3, carrying out image analysis on the high-definition video stream image, and identifying vehicle information; establishing vehicle tracking according to vehicle information, and snapshotting a vehicle image;
s4, detecting the signal of the vehicle-mounted OBU unit in real time, establishing communication and reading the vehicle information of the vehicle-mounted OBU unit; the parallel moving image acquisition module captures a vehicle image;
and S5, the vehicle information and the captured vehicle image are sent out according to the vehicle information identified by the detection time matching and the read vehicle information.
Further, S1 to S3 and S4 are parallel steps, and there is no precedence relationship.
The specific implementation method comprises the following steps:
s1, acquiring a video stream image of the vehicle by an image acquisition module; wherein,
the image acquisition module can adopt image acquisition equipment such as a camera and the like, and detects vehicles frame by frame for the video stream image after acquiring the video stream image in real time.
S2, the image processing module carries out image processing on the video stream image to obtain a high-definition video stream image; wherein,
the image processing includes operations such as ambient light brightness adjustment and noise removal.
S3, the image analysis module carries out image analysis on the high-definition video stream image and identifies vehicle information; establishing vehicle tracking according to vehicle information, capturing a vehicle image through an image acquisition module, and entering a vehicle information queue; wherein,
the identified vehicle information comprises a license plate number, a license plate color, a vehicle body color, a vehicle type and the like;
the vehicle information queue comprises vehicle information, a vehicle running track and a vehicle snapshot.
S4, detecting signals of the vehicle-mounted OBU unit in real time by an RSU detection module (RSU antenna), establishing communication, reading vehicle information of the vehicle-mounted OBU unit, capturing images of the vehicle by the image acquisition module in a linkage mode, and entering an OBU information queue; wherein,
the identified vehicle information comprises a license plate number, a license plate color, a vehicle body color, a vehicle type and the like;
the OBU information queue comprises vehicle information and a vehicle snapshot map.
S5, the central control unit detects the vehicle information which is matched and identified by time and the read vehicle information, and sends the vehicle information and the captured vehicle image to the outside; wherein,
the matching method in the central control unit comprises the following steps:
1) when the vehicle information identified by the image analysis module is matched with the time point of the vehicle information read by the RSU detection module, the vehicle information identified by the image analysis module, the vehicle information read by the RSU detection module and a vehicle image which is captured by the image analysis module and the RSU detection module in a linkage mode are output at the same time;
2) when the time point of the vehicle information identified by the image analysis module is not matched with the time point of the vehicle information read by the RSU detection module, the vehicle information identified by the image analysis module and a vehicle image captured by the image analysis module and the RSU detection module in a linkage mode are output;
3) and when the time point of the vehicle information read by the RSU detection module is not matched with the time point of the vehicle information identified by the image analysis module, outputting the vehicle information read by the RSU detection module and a vehicle image which is captured by the image analysis module and the RSU detection module in a linkage manner.
The vehicle information and the captured vehicle image are sent to the outside through the external communication module, and the external communication module comprises one or more of a wireless communication interface, a wired communication interface and an I/O communication interface.
As shown in fig. 2, the problem that the vehicle passing road section cannot be identified when the existing RSU antenna and the vehicle-mounted OBU unit are unsuccessfully communicated is solved; the invention provides a device for detecting a vehicle by combining an RSU and a video stream, which comprises: the system comprises an RSU detection module 1, an image acquisition module 2, an image processing module 3, an image analysis module 4, a central control unit 5 and an external communication module 6;
the RSU detection module 1 is used for detecting signals of the vehicle-mounted OBU unit in real time, establishing communication between an RSU antenna and the vehicle-mounted OBU unit and reading vehicle information of the vehicle-mounted OBU unit; based on the read vehicle information, the image acquisition module 2 is linked to capture a vehicle image and enter an OBU information queue; the identified vehicle information comprises a license plate number, a license plate color, a vehicle body color, a vehicle type and the like, and the OBU information queue comprises vehicle information and a vehicle snapshot image.
The image acquisition module 2 is used for acquiring video stream images of the vehicle; the image acquisition module can adopt image acquisition equipment such as a camera and the like, and the vehicle is detected frame by video streaming images after the video streaming images are acquired in real time.
The image processing module 3 is used for performing image processing on the video stream image to obtain a high-definition video stream image; the image processing includes operations such as adjusting the ambient light brightness and removing noise.
The image analysis module 4 is used for carrying out image analysis on the high-definition video stream image and identifying vehicle information; establishing vehicle tracking according to vehicle information, capturing a vehicle image through an image acquisition module, and entering a vehicle information queue; the identified vehicle information comprises a license plate number, a license plate color, a vehicle body color, a vehicle type and the like, and the vehicle information queue comprises vehicle information, a vehicle running track and a vehicle snapshot picture.
The central control unit 5 is used for sending the vehicle information and the captured vehicle image to the outside by using the vehicle information identified by the detection time matching image analysis module and the vehicle information read by the RSU detection module; the matching method in the central control unit comprises the following steps:
1) when the vehicle information identified by the image analysis module is matched with the time point of the vehicle information read by the RSU detection module, the vehicle information identified by the image analysis module, the vehicle information read by the RSU detection module and a vehicle image which is captured by the image analysis module and the RSU detection module in a linkage mode are output at the same time;
2) when the time point of the vehicle information identified by the image analysis module is not matched with the time point of the vehicle information read by the RSU detection module, the vehicle information identified by the image analysis module and a vehicle image captured by the image analysis module and the RSU detection module in a linkage mode are output;
3) and when the time point of the vehicle information read by the RSU detection module is not matched with the time point of the vehicle information identified by the image analysis module, outputting the vehicle information read by the RSU detection module and a vehicle image which is captured by the image analysis module and the RSU detection module in a linkage manner.
The external communication module 6 includes one or more of a wireless communication interface, a wired communication interface and an I/O communication interface, and is used for providing an interface for external transmission of vehicle information and vehicle images.
The invention has the advantages that:
the invention adopts the RSU detection module (RSU antenna) and the video stream image to jointly detect the vehicle information, solves the problem that the vehicle passing road section cannot be identified when the communication between the RSU antenna and the vehicle-mounted OBU unit is unsuccessful, and ensures that the ETC electronic toll collection system is more reliable and efficient.
The above is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and various modifications and changes will occur to those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. A method for RSU detection of a vehicle in conjunction with video streaming, comprising:
collecting video stream images of a vehicle;
performing image processing on the video stream image to obtain a high-definition video stream image;
carrying out image analysis on the high-definition video stream image, and identifying vehicle information;
detecting a signal of a vehicle-mounted OBU unit in real time, establishing communication and reading vehicle information of the vehicle-mounted OBU unit;
capturing a vehicle image;
and matching the identified vehicle information with the read vehicle information at the detection time, and sending the vehicle information and the captured vehicle image to the outside.
2. The method of claim 1, wherein the specific implementation of the method comprises:
the method comprises the steps that an image acquisition module acquires video stream images of a vehicle;
the image processing module carries out image processing on the video stream image to obtain a high-definition video stream image;
the image analysis module is used for carrying out image analysis on the high-definition video stream image and identifying vehicle information;
the RSU detection module detects a signal of a vehicle-mounted OBU unit in real time, establishes communication and reads vehicle information of the vehicle-mounted OBU unit;
the RSU detection module is linked with the image acquisition module to capture the vehicle image;
and the central control unit sends the vehicle information and the captured vehicle image to the outside by detecting the vehicle information identified by time matching and the read vehicle information.
3. The method of claim 1 or 2,
the image processing comprises the steps of adjusting the brightness of the environment and removing noise points;
the vehicle information comprises a license plate number, a license plate color, a vehicle body color and a vehicle type.
4. The method according to claim 1 or 2, wherein the vehicle information recognized by the image analysis module and the vehicle information read by the RSU detection module are matched at a detection time, and the vehicle information and the captured vehicle image are transmitted to the outside; the method comprises the following steps:
when the vehicle information identified by the image analysis module is matched with the time point of the vehicle information read by the RSU detection module, the vehicle information identified by the image analysis module, the vehicle information read by the RSU detection module and a vehicle image captured by the image analysis module and the RSU detection module in a linkage mode are output simultaneously;
when the time point of the vehicle information identified by the image analysis module is not matched with the time point of the vehicle information read by the RSU detection module, outputting the vehicle information identified by the image analysis module and a vehicle image captured by the image analysis module and the RSU detection module in a linkage manner;
and when the time point of the vehicle information read by the RSU detection module is not matched with the time point of the vehicle information identified by the image analysis module, outputting the vehicle information read by the RSU detection module and a vehicle image which is captured by the image analysis module and the RSU detection module in a linkage manner.
5. The method of claim 2, wherein the central control unit transmits the vehicle information and the captured vehicle image to the outside through the external communication module;
the external communication module comprises one or more of a wireless communication interface, a wired communication interface and an I/O communication interface.
6. An apparatus for detecting a vehicle by a RSU in conjunction with a video stream, comprising:
the image acquisition module is used for acquiring video stream images of the vehicle;
the image processing module is used for carrying out image processing on the video stream image to obtain a high-definition video stream image;
the image analysis module is used for carrying out image analysis on the high-definition video stream image and identifying vehicle information;
the RSU detection module is used for detecting signals of the vehicle-mounted OBU unit in real time, establishing communication and reading vehicle information of the vehicle-mounted OBU unit; the image acquisition module is linked to capture the vehicle image;
and the central control unit is used for matching the vehicle information identified by the image analysis module and the vehicle information read by the RSU detection module with detection time and sending the vehicle information and the captured vehicle image to the outside.
7. The apparatus of claim 6, wherein the image processing comprises ambient light level adjustment, noise removal.
8. The apparatus of claim 6, wherein the vehicle information includes a license plate number, a license plate color, a body color, and a vehicle type.
9. The apparatus of claim 6, wherein the vehicle information and the captured vehicle image are transmitted to the outside by matching the vehicle information recognized by the image analysis module and the vehicle information read by the RSU detection module at the detection time; the method comprises the following steps:
when the vehicle information identified by the image analysis module is matched with the time point of the vehicle information read by the RSU detection module, the vehicle information identified by the image analysis module, the vehicle information read by the RSU detection module and a vehicle image captured by the image analysis module and the RSU detection module in a linkage mode are output simultaneously;
when the time point of the vehicle information identified by the image analysis module is not matched with the time point of the vehicle information read by the RSU detection module, outputting the vehicle information identified by the image analysis module and a vehicle image captured by the image analysis module and the RSU detection module in a linkage manner;
and when the time point of the vehicle information read by the RSU detection module is not matched with the time point of the vehicle information identified by the image analysis module, outputting the vehicle information read by the RSU detection module and a vehicle image which is captured by the image analysis module and the RSU detection module in a linkage manner.
10. The apparatus of claim 6 or 9, further comprising:
and the external communication module comprises one or more of a wireless communication interface, a wired communication interface and an I/O communication interface and is used for providing an interface for externally transmitting the vehicle information and the vehicle image.
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Inventor after: Hu Zhonghua Inventor after: Zhao Pengyi Inventor after: Chen Dezhang Inventor after: Wang Gengsheng Inventor after: Liang Dongsheng Inventor after: Yang Pinsheng Inventor before: Hu Zhonghua Inventor before: Zhao Pengyi Inventor before: Chen Dezhang Inventor before: Liang Dongsheng Inventor before: Yang Pinsheng |
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Application publication date: 20200630 |
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| RJ01 | Rejection of invention patent application after publication |