CN113888865A - Electronic device and vehicle information acquisition method - Google Patents
Electronic device and vehicle information acquisition method Download PDFInfo
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- CN113888865A CN113888865A CN202111152170.8A CN202111152170A CN113888865A CN 113888865 A CN113888865 A CN 113888865A CN 202111152170 A CN202111152170 A CN 202111152170A CN 113888865 A CN113888865 A CN 113888865A
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- G—PHYSICS
- G08—SIGNALLING
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- 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
- G08G1/0108—Measuring and analyzing of parameters relative to traffic conditions based on the source of data
- G08G1/0116—Measuring and analyzing of parameters relative to traffic conditions based on the source of data from roadside infrastructure, e.g. beacons
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- G—PHYSICS
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- 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
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Abstract
The invention relates to an electronic device and a vehicle information acquisition method, relating to the technical field of vehicle-road cooperation, wherein the method comprises the following steps: receiving position information of first vehicles acquired by a radar, and determining the ID of each first vehicle acquired by the radar; after receiving information of a second vehicle acquired by target gate equipment, if the target second vehicle is acquired for the first time by the target gate equipment, determining a target first vehicle from first vehicles acquired by a radar; and if the ID of the target first vehicle is not bound with the appearance characteristic information before the preset time period, and the running sequence determined according to the position information of the target first vehicle is the same as the determined running sequence of the target second vehicle, binding the ID of the target first vehicle with the appearance characteristic information of the target second vehicle. The embodiment of the invention can determine that the vehicle ID of the same vehicle is bound with the appearance characteristic information acquired by the target gate device, thereby solving the problem of incomplete monitoring data in the prior art.
Description
Technical Field
The invention relates to the technical field of vehicle-road cooperation, in particular to electronic equipment and a vehicle information acquisition method.
Background
In order to better manage traffic, a plurality of radars are arranged on the existing road, and when a vehicle passes through the radars, the radars can monitor the position of the vehicle, so that the vehicle on the road can be monitored.
However, other devices generally recognize the identity of the vehicle as the appearance characteristic information of the vehicle, such as the number plate, the number plate type, and the like, and cannot recognize the identity of the vehicle through the ID, for example, when the vehicle has a car accident, the identity of the vehicle is recognized as the number plate, the vehicle type, and the like of the vehicle, which results in incomplete information of the vehicle if only the ID of the vehicle is known.
Disclosure of Invention
The invention provides an electronic device and a vehicle information acquisition method, which can enable a vehicle ID and a target card port device to acquire appearance characteristic information of a vehicle, so that the two pieces of information are bound, and the problem that monitoring data is incomplete in the prior art is solved.
In a first aspect, an embodiment of the present invention provides an electronic device, including: a receiving unit and a processor;
the receiving module is used for receiving information sent by the radar and receiving information sent by the card port equipment corresponding to the radar;
the processor is used for receiving the position information of the first vehicles collected by the radar and determining the ID of each first vehicle collected by the radar;
after receiving information of second vehicles acquired by target gate equipment, determining whether each second vehicle is acquired by the target gate equipment for the first time; wherein the monitoring area of the target gate device and the monitoring area of the radar have an overlapping area; the information of the second vehicle collected by the target gate device comprises appearance characteristic information used for identifying the identity of the vehicle and the driving sequence of the vehicle;
if the target second vehicle is acquired by the target gate equipment for the first time, determining a target first vehicle from the first vehicles acquired by the radar; the method comprises the steps that the time of receiving position information of a target first vehicle is within a first preset time before the time of receiving information of a target second vehicle, and appearance feature information is not bound to an ID of the target first vehicle in a preset time period; the preset time period is a second preset time period before the time of receiving the information of the target second vehicle;
if the ID of the target first vehicle is not bound with the appearance characteristic information before the preset time period, and the running sequence determined according to the position information of the target first vehicle is the same as the running sequence of the target second vehicle, the ID of the target first vehicle and the appearance characteristic information of the target second vehicle are bound to realize monitoring of the vehicles running on the road.
The electronic equipment determines the ID of a vehicle detected by a radar, and simultaneously acquires the appearance characteristic information used for identifying the identity of the vehicle by using the target bayonet device, if the vehicle is acquired by the target bayonet device for the first time, the vehicle acquired by the radar within the preset time before the acquisition time of the vehicle is determined, if the appearance characteristic information is not bound to the ID of the vehicle, and after the same sequence of the two vehicles before and after running is determined, the two vehicles are the same vehicle, the ID and the appearance characteristic information are bound, so that more information of the vehicle is acquired, the problem of incomplete monitoring data in the prior art is solved, and the monitoring efficiency is improved.
In one possible implementation, the processor is specifically configured to:
if the number of the target first vehicles is one, determining that the driving sequence of the target vehicles is a first driving sequence;
if the number of the target first vehicles is multiple, determining the distance traveled by each target first vehicle within a time interval according to the time interval between the time of receiving the position information of the target first vehicle and the time of receiving the information of the target second vehicle, the speed of the target first vehicle and the acceleration of the target first vehicle;
determining the position information of the target first vehicle when the target gate equipment acquires the target first vehicle according to the running distance of the target first vehicle in a time interval and the position information of the target first vehicle;
and determining the running sequence of the target first vehicle according to the position information of the target first vehicle when the target first vehicle is collected by the target gate equipment.
Because the frequencies of the radar and the target gate device for acquiring the information are different, the electronic device determines that the position information of the target second vehicle is acquired through the target gate device, so that the judgment can be more accurate in the process of judging the running sequence of the target first vehicle acquired through the target gate device.
In one possible implementation, the processor is further configured to:
and determining that the lane where the target first vehicle and the target second vehicle are located is the same.
According to the electronic equipment, the success rate of judging the running sequence of the two vehicles can be improved when the fact that the lanes where the target first vehicle and the target second vehicle are located are the same is determined.
In one possible implementation, the processor is further configured to:
and if the ID of the target first vehicle is bound with the appearance characteristic information before the preset time period, and the running sequence determined according to the position information of the target first vehicle is the same as the running sequence of the target second vehicle, correcting the appearance characteristic information bound with the ID according to the confidence coefficient of the appearance characteristic information of the target second vehicle and the confidence coefficient of the appearance characteristic information bound with the ID.
The electronic equipment can modify the bound appearance characteristic information and improve the reliability of the bound information after the appearance characteristic information of the bound vehicle is acquired again after the identity information is bound with the appearance characteristic information.
In a possible implementation manner, the appearance characteristic information includes a license plate number, and the processor is specifically configured to:
if the difference between the confidence coefficient of the received license plate number of the target second vehicle and the confidence coefficient of the ID-bound license plate number exceeds a preset value, and the confidence coefficient of the received license plate number of the target second vehicle is greater than the confidence coefficient of the ID-bound license plate number, updating the ID-bound license plate number into the received license plate number of the target second vehicle; or
If the difference between the confidence level of the received license plate number of the target second vehicle and the confidence level of the ID-bound license plate number does not exceed a preset value, updating the number in the ID-bound license plate number for each number in the ID-bound license plate number according to the number with the larger confidence level in the confidence level of the number in the received license plate number of the target second vehicle and the confidence level of the number in the ID-bound license plate number.
The electronic equipment can modify the license plate number in the appearance characteristic information through the confidence coefficient, and the license plate number bound by the identity information is the correct license plate number of the vehicle, so that the confidence coefficient of the acquired information is improved.
In a second aspect, an embodiment of the present invention provides a vehicle information acquiring method, including:
receiving position information of first vehicles acquired by a radar, and determining the ID of each first vehicle acquired by the radar;
after receiving information of second vehicles acquired by target gate equipment, determining whether each second vehicle is acquired by the target gate equipment for the first time; wherein the monitoring area of the target gate device and the monitoring area of the radar have an overlapping area; the information of the second vehicle collected by the target gate device comprises appearance characteristic information used for identifying the identity of the vehicle and the driving sequence of the vehicle;
if the target second vehicle is acquired by the target gate equipment for the first time, determining a target first vehicle from the first vehicles acquired by the radar; the method comprises the steps that the time of receiving position information of a target first vehicle is within a first preset time before the time of receiving information of a target second vehicle, and appearance feature information is not bound to an ID of the target first vehicle in a preset time period; the preset time period is a second preset time period before the time of receiving the information of the target second vehicle;
if the ID of the target first vehicle is not bound with the appearance characteristic information before the preset time period, and the running sequence determined according to the position information of the target first vehicle is the same as the running sequence of the target second vehicle, the ID of the target first vehicle and the appearance characteristic information of the target second vehicle are bound to realize monitoring of the vehicles running on the road.
In one possible implementation, determining a driving order according to the position information of the target first vehicle includes:
if the number of the target first vehicles is one, determining that the driving sequence of the target vehicles is a first driving sequence;
if the number of the target first vehicles is multiple, determining the distance traveled by each target first vehicle within a time interval according to the time interval between the time of receiving the position information of the target first vehicle and the time of receiving the information of the target second vehicle, the speed of the target first vehicle and the acceleration of the target first vehicle;
determining the position information of the target first vehicle when the target gate equipment acquires the target first vehicle according to the running distance of the target first vehicle in a time interval and the position information of the target first vehicle;
and determining the running sequence of the target first vehicle according to the position information of the target first vehicle when the target first vehicle is collected by the target gate equipment.
In one possible implementation, before the ID of the target first vehicle and the appearance characteristic information of the target second vehicle are bound, the method further includes:
and determining that the lane where the target first vehicle and the target second vehicle are located is the same.
In one possible implementation, the method further includes:
and if the ID of the target first vehicle is bound with the appearance characteristic information before the preset time period, and the running sequence determined according to the position information of the target first vehicle is the same as the running sequence of the target second vehicle, correcting the appearance characteristic information bound with the ID according to the confidence coefficient of the appearance characteristic information of the target second vehicle and the confidence coefficient of the appearance characteristic information bound with the ID.
In one possible implementation manner, where the appearance feature information includes a license plate number, and the modifying the ID-bound appearance feature information according to the confidence of the appearance feature information of the target second vehicle and the confidence of the ID-bound appearance feature information includes:
if the difference between the confidence coefficient of the received license plate number of the target second vehicle and the confidence coefficient of the ID-bound license plate number exceeds a preset value, and the confidence coefficient of the received license plate number of the target second vehicle is greater than the confidence coefficient of the ID-bound license plate number, updating the ID-bound license plate number into the received license plate number of the target second vehicle; or
If the difference between the confidence level of the received license plate number of the target second vehicle and the confidence level of the ID-bound license plate number does not exceed a preset value, updating the number in the ID-bound license plate number for each number in the ID-bound license plate number according to the number with the larger confidence level in the confidence level of the number in the received license plate number of the target second vehicle and the confidence level of the number in the ID-bound license plate number.
In a third aspect, the present application also provides a computer storage medium having stored thereon a computer program that, when executed by a processing unit, implements the steps of the vehicle information acquisition method of the second aspect.
In addition, for technical effects brought by any one implementation manner of the second aspect to the third aspect, reference may be made to technical effects brought by different implementation manners of the first aspect, and details are not described here.
It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the invention, as claimed.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the invention and together with the description, serve to explain the principles of the invention and are not to be construed as limiting the invention.
Fig. 1 is a schematic view of a scene on a road according to an embodiment of the present invention;
FIG. 2 is a schematic view of a scene for monitoring vehicles on a road according to an embodiment of the present invention;
FIG. 3 is a block diagram of an electronic device according to an embodiment of the present invention;
fig. 4 is a flowchart of a vehicle information acquisition method according to an embodiment of the present invention;
FIG. 5 is a layout diagram of a radar and target mount device provided by an embodiment of the present invention;
FIG. 6 is a schematic diagram of an image captured by a target mount device according to an embodiment of the present invention;
FIG. 7 is a schematic diagram of information collected by two devices when there is a time difference between the radar and the target mount device in the collection cycle according to the embodiment of the present invention;
FIG. 8A is a schematic diagram of a radar and a target gate device capturing a vehicle during a first vehicle driving process according to an embodiment of the present invention;
FIG. 8B is a schematic diagram of a radar and a target gate device capturing a vehicle during a second vehicle driving process according to an embodiment of the present invention;
FIG. 8C is a schematic diagram of a radar and a target gate device capturing a vehicle during a third vehicle driving process according to an embodiment of the present invention;
fig. 9 is a schematic diagram of a radar and a target gate device, where a plurality of vehicles are distributed in a plurality of lanes, shooting the vehicles.
Detailed Description
In order to make those skilled in the art better understand the technical solution of the present invention, the technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings.
It should be noted that the terms "first", "second", and the like in the description of the present invention and the drawings described above are used for distinguishing similar objects and not necessarily for describing a particular order or sequence. It is to be understood that the data so used is interchangeable under appropriate circumstances such that the embodiments of the invention described herein are capable of operation in sequences other than those illustrated or described herein. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with the present invention. Rather, they are merely examples of apparatus and methods consistent with certain aspects of the invention, as detailed in the appended claims.
The application scenario described in the embodiment of the present invention is for more clearly illustrating the technical solution of the embodiment of the present invention, and does not form a limitation on the technical solution provided in the embodiment of the present invention, and it can be known by a person skilled in the art that with the occurrence of a new application scenario, the technical solution provided in the embodiment of the present invention is also applicable to similar technical problems.
In order to better monitor vehicles running on the road, a plurality of radars are arranged on the road, and at the same time, a bayonet device, a Camera and the like are arranged on an important road node, and as shown in fig. 1, Radar 1-Radar 6 and bayonet devices Camera 1-Camera 2 are arranged on the road, wherein the Radar1 and the bayonet device Camera1 are arranged at a relatively close position, the monitoring area of the Radar1 and the identification area of the bayonet device Camera1 have an overlapping area, the Radar6 and the identification area of the bayonet device Camera2 are arranged at a relatively close position, and the monitoring area of the Radar6 and the identification area of the bayonet device Camera2 have an overlapping area.
When the vehicle 1 passes through the Radar1, the position of the vehicle 1 is acquired through the Radar1, the ID of the vehicle 1 is determined to be recognized by the Radar, the vehicle 1 continues to run, the vehicle 1 is shot by the bayonet device Camera1, and therefore appearance feature information of the vehicle 1, such as the license plate number, the license plate type and the like, is acquired, and as the vehicles shot by the bayonet device Camera1 and the Radar1 are the same vehicle, the ID of the vehicle 1 determined through the Radar1 and the appearance feature information acquired through the bayonet device Camera1 are bound.
When a passing vehicle is collected by the Radar2, the ID of the vehicle is obtained by the Radar2, if the vehicle collected by the Radar2 is the vehicle 1, the position of the vehicle 1 is recorded, and the ID of the vehicle 1 is bound to the position; similarly, when the Radar3 collects passing vehicles, the Radar3 acquires the IDs of the vehicles, and if the vehicle collected by the Radar3 is the vehicle 1, the position of the vehicle 1 is recorded, and the ID of the vehicle 1 is bound to the position; when the Radar4 collects a passing vehicle, the Radar4 obtains the ID of the vehicle, if the vehicle collected by the Radar4 is the vehicle 1, the position of the vehicle 1 is recorded and the ID of the vehicle 1 is bound to the position, when the Radar5 collects the passing vehicle, the Radar5 obtains the ID of the vehicle, and if the vehicle collected by the Radar5 is the vehicle 1, the position of the vehicle 1 is recorded and the ID of the vehicle 1 is bound to the position.
When a passing vehicle is collected by the Radar6, the Radar6 obtains the ID of the vehicle, if the vehicle collected by the Radar6 is the vehicle 1, the position of the vehicle 1 is recorded, meanwhile, the appearance feature information obtained by the Camera device Camera2 is obtained, and then, when the confidence coefficient of the appearance feature information obtained by the Camera device Camera2 is higher than that of the appearance feature information obtained by the Camera device Camera1, the appearance feature information of the Camera device Camera2 is used for replacing the appearance feature information which is bound by the ID and is obtained by the Camera device Camera 1; when the confidence of the appearance feature information obtained by the bayonet device Camera2 is not higher than the confidence of the appearance feature information obtained by the bayonet device Camera1, the appearance feature information obtained by the bayonet device Camera1 to which the ID is bound is not changed.
Through the monitoring process, vehicles running on the road and the running tracks of the vehicles can be monitored, and when traffic accidents happen to the vehicles, the positions of the vehicles can be quickly acquired through the monitored information of the vehicles, so that traffic management is facilitated.
For example, as shown in fig. 2, regarding the vehicles on the road, when the radar on the road detects a vehicle, highlighting is performed, for example, the vehicle 1, the vehicle 2, the vehicle 3, and the vehicle 4 are displayed by blinking at the origin, and when the origin is clicked, information of the corresponding vehicle is displayed. For example, when the vehicle 1 is selected, the bound appearance feature information, jing a.123, mini car, model a 2021, white color, and the passing position information of the vehicle 1, (longitude 1, latitude 1), (longitude 2, latitude 2), (longitude 3, latitude 3), (longitude 4, and latitude 4) are displayed.
The electronic device and the vehicle information acquisition method according to the embodiment of the invention will be described below with reference to the accompanying drawings.
Fig. 3 shows a schematic structural diagram of an electronic device 300.
The following describes an embodiment of the electronic device 300. It should be understood that the electronic device 300 shown in fig. 3 is merely an example, and that the electronic device 300 may have more or fewer components than shown in fig. 3, may combine two or more components, or may have a different configuration of components. The various components shown in the figures may be implemented in hardware, software, or a combination of hardware and software, including one or more signal processing and/or application specific integrated circuits.
A block diagram of a hardware configuration of an electronic device 300 according to an exemplary embodiment is exemplarily shown in fig. 3. As shown in fig. 3, the electronic device 300 includes: radio Frequency (RF) circuit 310, memory 320, Wireless Fidelity (Wi-Fi) module 330, processor 340, bluetooth module 350, power supply 360, and the like.
The RF circuit 310 may be used for receiving and transmitting signals during information transmission and reception or during a call, and may receive downlink data of a base station and then send the downlink data to the processor 340 for processing; the uplink data may be transmitted to the base station. Typically, the RF circuitry includes, but is not limited to, an antenna, at least one amplifier, a transceiver, a coupler, a low noise amplifier, a duplexer, and the like.
Wi-Fi belongs to short-range wireless transmission technology, and the electronic device 300 can help a user send and receive e-mails, browse webpages, access streaming media and the like through the Wi-Fi module 330, and provides wireless broadband Internet access for the user.
And the bluetooth module 350 is configured to perform information interaction with other bluetooth devices having a bluetooth module through a bluetooth protocol. For example, the electronic device 300 may establish a bluetooth connection with a wearable electronic device (e.g., a smart watch) that is also equipped with a bluetooth module via the bluetooth module 350, so as to perform data interaction.
The electronic device 300 communicates with the radar through part or all of the RF circuit 310, the Wi-Fi module 330, and the bluetooth module 350, and receives information sent by the radar; the electronic device 300 communicates with the gate device corresponding to the radar through some or all of the RF circuit 310, the Wi-Fi module 330, and the bluetooth module 350, and receives information sent by the gate device corresponding to the radar.
The processor 340 is a control center of the electronic device 300, connects various parts of the entire terminal using various interfaces and lines, and performs various functions of the electronic device 300 and processes data by running or executing software programs stored in the memory 320 and calling data stored in the memory 320. In some embodiments, processor 340 may include one or more processing units; the processor 340 may also integrate an application processor, which mainly handles operating systems, user interfaces, applications, etc., and a baseband processor, which mainly handles wireless communications. It will be appreciated that the baseband processor described above may not be integrated into the processor 340. In the present application, the processor 340 may run an operating system, an application program, a user interface display, a touch response, and the processing method described in the embodiments of the present application.
The electronic device 300 also includes a power source 360 (such as a battery) that powers the various components. The power supply may be logically coupled to the processor 340 via a power management system, such that the power management system may manage charging, discharging, and power consumption. The electronic device 300 may further be configured with a power button for powering on and off the terminal, and locking the screen.
The electronic device 300 may be a Multi-access Edge Computing (MEC) device, and the MEC device may be a PC, a server, or the like.
The MEC device assigns an ID to a vehicle to which no ID has been assigned yet when the vehicle is detected for the first time by the radar. When the radar with the overlapping area detects the vehicle, the position of the current radar collection can be recorded for the ID, after the current radar and the next radar have the overlapping area, the two radars are determined to collect the same vehicle, the position of the next radar collection is recorded for the ID, and the like, the two radars with the overlapping areas record the position of the vehicle through the ID, so that the driving path of the vehicle can be monitored.
In the embodiment of the invention, the radar detects the vehicles in the monitoring area in real time, collects the information of each vehicle and sends the collected information to the MEC equipment. The information includes the position information of the vehicle, and the like, and identifies the ID of the vehicle collected by the radar.
The card port equipment can detect the vehicles in the identification area in real time, collect the information of each vehicle and send the collected information to the MEC equipment. The information includes appearance feature information for identifying the identity of the second vehicle, the driving order of the vehicle, and the like.
The MEC device can bind the ID acquired by the radar and the appearance characteristic information of the vehicle acquired by the gate device having the overlapping monitoring area with the radar.
The following describes embodiments of the present invention.
Referring to fig. 4, an embodiment of the present invention provides a vehicle information obtaining method, applied to an electronic device, including:
s400: receiving position information of first vehicles acquired by a radar, and determining the ID of each first vehicle acquired by the radar;
the process of determining the ID of the vehicle collected by the radar is as described above; the ID (Identity document) is an abbreviation of various proprietary words such as an identification number of an identification card, an account number, a unique code, a proprietary number, industrial design, national abbreviation, a legal word, a general account, a decoder, a software company, and the like.
The radar can detect information of the vehicle, including longitude, latitude, speed, lane, vehicle length, vehicle width of the first vehicle, and X-axis distance and Y-axis distance in an XY coordinate system centered on the radar.
S401: after receiving the information of the second vehicles acquired by the target gate equipment, determining whether each second vehicle is acquired by the target gate equipment for the first time; the monitoring area of the target gate equipment and the monitoring area of the radar have an overlapping area; the information of the second vehicle collected by the target gate device comprises appearance characteristic information used for identifying the identity of the vehicle;
as shown in fig. 5, the monitoring area of the radar is an area surrounded by a black bold solid line, the monitoring area of the target gate device is an area surrounded by a black dotted line, the monitoring area of the radar and the monitoring area of the target gate device share a common area, and the radar and the target gate device can acquire information of the same vehicle in a relatively short time period.
The target gate equipment acquires information of the vehicle, including information of license plate type, license plate color, license plate brightness, license plate character number, license plate number, confidence coefficient of the whole license plate number, confidence coefficient of each number of the license plate number, main vehicle brand, sub vehicle brand, annual vehicle brand, vehicle type, vehicle color, belonging lane, driving sequence and the like.
For example, the gate device comprises a camera and a processor, the camera captures an image and sends the image to the processor, the processor identifies the license plate type, the license plate color, the license plate brightness, the number of characters of the license plate, the license plate number, the confidence coefficient of the whole license plate number, the confidence coefficient of each number of the license plate number, the main brand of the vehicle, the sub-brand of the vehicle, the annual amount of the sub-brand of the vehicle, the type of the vehicle, the color of the vehicle and the belonging lane according to the captured image, and then sends the information of the identified vehicle to the electronic device.
Wherein the mount device also recognizes the driving order of the vehicles in the image.
Wherein if there is only one vehicle in the images taken by the cameras, the driving order is the first order. If there are a plurality of vehicles in the image taken by the camera, the driving order of each vehicle is determined.
With respect to the driving sequence, as shown in fig. 6, the mount device captures an image in which there are three vehicles, vehicle 1, vehicle 2, and vehicle 3, and with reference to the position of the mount device shown in fig. 5, the driving sequence of vehicle 1 is the first sequence, the driving sequence of vehicle 2 is the second sequence, and the driving sequence of vehicle 3 is the third sequence.
S402: if the target second vehicle is acquired by the target gate equipment for the first time, determining a target first vehicle from the first vehicles acquired by the radar; the time of receiving the position information of the target first vehicle is within a first preset time before the time of receiving the information of the target second vehicle, and the ID of the target first vehicle is not bound with the appearance characteristic information in a preset time period; the preset time period is a second preset time period before the time of receiving the information of the target second vehicle;
when the radar and the target gate device can shoot the same vehicle, one vehicle passes through the gate device after passing through the radar, after the radar collects the information of the vehicle, if the time for receiving the information sent by the gate device is longer than the interval between the times for receiving the information of the vehicles sent by the radar, the vehicle can come from two vehicles, therefore, the preset time length can be a radar collection period, namely the time for receiving the position information of the target first vehicle, and in a radar collection period before the time for receiving the information of the target second vehicle, the possibility that the vehicles detected by the radar and the gate device are the same is higher.
Meanwhile, when the vehicles are in the radar monitoring area, the radar detects the vehicles, if a plurality of vehicles run in the radar monitoring area, the vehicles shot by the target gate device are different, when the vehicles running in front are detected by the target gate device, the binding is carried out, and at the moment, the bound vehicles exist in the radar, so that the vehicles do not need to be bound with the ID and the appearance characteristic information again, and the found ID of the first target vehicle is not bound with the appearance characteristic information in a preset time period; the preset time period is a second preset duration before the time of receiving the information of the target second vehicle.
The length of the first preset time period and the second preset time period is not necessary, and the second preset time period is generally longer but not too long, and is generally set within 10 minutes.
S403: if the ID of the target first vehicle is not bound with the appearance characteristic information before the preset time period, and the running sequence determined according to the position information of the target first vehicle is the same as the running sequence of the determined target second vehicle, the ID of the target first vehicle and the appearance characteristic information of the target second vehicle are bound to realize monitoring of the vehicles running on the road.
Because the radar sampling period is relatively fast and the bayonet device sampling period is relatively slow, as shown in fig. 7, after a vehicle enters a radar monitoring area, the radar starts to detect the vehicle, the vehicle a and the vehicle b, and in the radar sampling period, the vehicle a and the vehicle b are detected, because the bayonet device does not reach the initial time point of the sampling period at this time, after the vehicle a and the vehicle b move for a period, the initial time point of the sampling period is reached, and the target bayonet device collects the vehicle a and the vehicle b, in order to better restore the actual position of the vehicle when the target bayonet device collects, the embodiment of the invention provides that the position information is corrected and then the sequence is determined.
Specifically, the method comprises the following steps:
if the number of the target first vehicles is one, determining that the driving sequence of the target vehicles is a first driving sequence;
if the number of the target first vehicles is multiple, determining the distance traveled by the target first vehicle within a time interval according to the time interval between the time of receiving the position information of the target first vehicle and the time of receiving the information of the target second vehicle, the vehicle speed of the target first vehicle and the acceleration of the target first vehicle for each target first vehicle;
determining the position information of the target first vehicle when the target gate device collects the target first vehicle according to the running distance of the target first vehicle in the time interval and the position information of the target first vehicle;
and determining the running sequence of the target first vehicle according to the position information of the target first vehicle when the target gate equipment collects the target first vehicle.
Referring again to fig. 7, the distance H traveled by vehicle a during the time interval between the two reception times is determined based on the functional relationship between time, vehicle speed, acceleration and distance. And adding the position information A point detected by the radar with the driving distance H of the vehicle a to obtain a position B point of the vehicle a when the target gate device collects the vehicle a. Similarly, a point C of the vehicle B when the target gate device collects the vehicle B is obtained, and the driving sequence of the two vehicles is determined according to the position B and the position C.
Since the target mount device will take a picture, the target mount device will determine the driving sequence according to the positions of the vehicles on the picture, for example, as shown in fig. 6, the driving sequence of the vehicles 1 on the picture is a first sequence, the driving sequence of the vehicles 2 is a second sequence, and the driving sequence of the vehicles 3 is a third sequence, however, when the vehicles 1 are not collected for the first time, the driving sequences of the vehicles 2 and 3 need to be adjusted, and the adjustment is performed according to the previous driving sequence, that is, the driving sequence of the vehicles 2 is the first sequence, and the driving sequence of the vehicles 3 is the second sequence. Therefore, the invention provides that the initial driving sequence is determined according to the position of the vehicle on the picture, and the driving sequence of the vehicle is determined according to the information whether the target gate device is the vehicle acquired for the first time.
To take an example:
referring to fig. 8A, because the vehicle a, the vehicle b, and the vehicle c are all in the radar monitoring area, the radar reports the position information of the vehicle a, the vehicle b, and the vehicle c according to its own collection cycle, the vehicle travels forward, and when the target gate device photographs the vehicle a, the radar reports the position information to the electronic device, the electronic device receives the vehicle a collected by the target gate device for the first time, the vehicle a is the target second vehicle, and then determines that the target first vehicle is the vehicle a, the vehicle b, and the vehicle c, because the ID of the vehicle a is not bound with the appearance feature information in the preset time period, that is, the vehicle a is not bound with the appearance feature information in the time period, and meanwhile, the ID of the vehicle a is not bound with the appearance feature information before the time period, the travel sequence of the vehicle a, the vehicle b, and the vehicle c is determined according to the position information of the vehicle a, the vehicle b, and the vehicle c reported by the radar, the sequence of travel of vehicle a is the first sequence, the sequence of travel of vehicle b is the second sequence, and the sequence of travel of vehicle c is the third sequence.
The running sequence of the vehicle reported by the target gate device is determined to be the running sequence reported by the target gate device, and the serial number of the vehicle a can be bound with the appearance characteristic information of the vehicle a.
As shown in fig. 8B, the vehicle continues to run, the target gate device captures a vehicle a and a vehicle B, and since the vehicle a is not the vehicle first collected by the target gate device, the following steps are only required to be performed on the vehicle B, and at the same time, the vehicle a is not the vehicle first collected by the target gate device, and although the vehicle a is the first vehicle and the vehicle B is the second vehicle in the running sequence of the vehicle reported by the target gate device, the vehicle a is not the first vehicle, so that it is determined that the final running sequence of the vehicle B is the first vehicle.
Similarly, the radar detects a vehicle a, a vehicle b and a vehicle c, and the vehicle a binds the appearance characteristic information within a preset time, so that the vehicle b and the vehicle c are first vehicles of a target, the position of the vehicle b and the position of the vehicle c are known, the running sequence of the vehicle b is first, and the running sequence of the vehicle c is second, so that the running sequence of the vehicle b collected by the radar through the target gate device is first, and the ID of the vehicle b collected by the radar and the appearance characteristic information of the vehicle b collected by the target gate device are bound.
As shown in fig. 8C, the vehicle continues to run, the target gate device captures a vehicle b and a vehicle C, and since the vehicle b is not the vehicle first collected by the target gate device, the following steps are only required to be performed on the vehicle C, and meanwhile, the vehicle b is not the vehicle first collected by the target gate device, and the vehicle b is the first vehicle and the vehicle C is the second vehicle in the running sequence of the vehicle reported by the target gate device, but the vehicle b is not the first vehicle, so that it is determined that the final running sequence of the vehicle C is the first vehicle.
Similarly, the radar detects a vehicle a, a vehicle b and a vehicle c, and the vehicle a and the vehicle b have bound appearance characteristic information within a preset time, so that the vehicle c is the target first vehicle, and the driving sequence of the vehicle c is first because only one target first vehicle is provided.
The driving sequence of the vehicle c collected by the radar is the first, so that the ID of the vehicle c collected by the radar and the appearance characteristic information of the vehicle c collected by the target gate device are bound.
The invention can collect different information of the same vehicle through the radar and the target gate device, and bind the two different information, the bound information of the vehicle is such as longitude, latitude, speed, lane, vehicle length, vehicle width, X-axis distance and Y-axis distance in an XY coordinate system taking the radar as the center, identity information used for the radar to identify the first vehicle, license plate type, license plate color, license plate brightness, license plate character number, license plate number, confidence coefficient of the whole license plate number, confidence coefficient of each number of the license plate number, main vehicle brand, sub vehicle brand, annual vehicle brand, vehicle type, vehicle color, belonging lane and other information, thereby enriching the information of the monitored vehicle.
Before the ID of the target first vehicle and the appearance characteristic information of the target second vehicle are bound, in order to improve a success rate of determining a sequence of the two vehicles before and after traveling, the method further includes:
and determining that the lane where the target first vehicle and the target second vehicle are located is the same.
Specifically, since the road is divided into a plurality of lanes, when the distance between the radar and the target gate device is relatively short, when the lanes where the vehicle acquired by the radar is the same as the lanes where the vehicle acquired by the target gate device is located, the probability that the vehicle is the same vehicle is high.
If vehicles on the road are dense, the radar sends information of a plurality of vehicles to the electronic equipment, and the target card port equipment sends information of a plurality of vehicles to the electronic equipment in the same time period.
For example, as shown in connection with fig. 9, when a vehicle a, a vehicle b, and a vehicle c pass by the radar and the target mount device, the vehicle a and the vehicle b are side by side, so the vehicle b and the vehicle c are the same vehicle, and the vehicle b is in front of the vehicle c.
When radar is used for identification, the vehicles a, b and c are all in a radar monitoring area, therefore, the radar collects information of the vehicle 1, the radar collects information of the vehicle 2, the radar collects information of the vehicle 3 and sends the information to the electronic equipment, the vehicles a, b and c are all in a gate equipment identification area, the target gate equipment simultaneously collects information of the vehicles a, b and c and sends the information to the electronic equipment, through pictures shot by the target identification gate equipment, the driving sequence of the vehicle a on the lane 1 is identified as the first, the driving sequence of the vehicle b on the lane 2 is identified as the first, the driving sequence of the vehicle c on the lane 3 is identified as the second, and at the moment, the two vehicles a and b can be determined to be different vehicles due to the fact that the lanes of the two vehicles a and b are different.
For the vehicles b and c, since the lanes of the two vehicles are the same, the driving order of the vehicle b on the lane 2 is the first one, and the driving order of the vehicle c on the lane 3 is the second one.
Therefore, the lane and the driving sequence of the target vehicle are determined in the position information sent by the radar, for example, one vehicle exists in the lane 1, the driving sequence of the vehicle is the first, two vehicles exist in the lane 2, the driving sequence of one vehicle is the first, the driving sequence of the other vehicle is the second, and the one vehicle is matched with the lane and the driving sequence of the target gate device, so that the vehicle of the lane 1 acquired by the radar is the vehicle a, the vehicle of the lane 2 acquired by the radar is the vehicle b, and the vehicle of the lane 2 acquired by the radar is the vehicle c.
As described above, the present invention can determine the possibility of being the same vehicle by determining the lane and determining the driving order.
Of course, since the appearance feature information of the vehicle is recognized through photos, the photos may be captured inaccurately to cause recognition errors, and in order to make the obtained information more feasible, the invention proposes that if the ID of the target first vehicle is bound with the appearance feature information before the preset time period, and the driving sequence determined according to the position information of the target first vehicle is the same as the determined driving sequence of the target second vehicle, the ID-bound appearance feature information is corrected according to the confidence level of the appearance feature information of the target second vehicle and the confidence level of the ID-bound appearance feature information.
Specifically, the appearance characteristic information includes a license plate number, among others. If the difference between the confidence coefficient of the received license plate number of the target second vehicle and the confidence coefficient of the ID-bound license plate number exceeds a preset value, and the confidence coefficient of the received license plate number of the target second vehicle is greater than the confidence coefficient of the ID-bound license plate number, updating the ID-bound license plate number into the received license plate number of the target second vehicle; or
And if the difference between the confidence coefficient of the received license plate number of the target second vehicle and the confidence coefficient of the ID-bound license plate number does not exceed a preset value, updating the number in the ID-bound license plate number according to the confidence coefficient of the number in the received license plate number of the target second vehicle and the number with the larger confidence coefficient in the confidence coefficient of the number in the ID-bound license plate number for each number in the ID-bound license plate number.
The confidence coefficient of each license plate number and the confidence coefficient of each number in the license plates can be obtained when each gate device identifies the license plate number of the vehicle, the confidence coefficient is the probability that each number can be obtained when the gate device identifies the license plate number through a neural network, and the probability is used as the confidence coefficient of the number.
An embodiment of the present invention further provides an electronic device, including: a receiving unit and a processor;
the receiving unit is used for receiving information sent by the radar and receiving information sent by the target card port equipment; the receiving unit may be a Radio Frequency (RF) circuit 210, a Wireless Fidelity (Wi-Fi) module 230, or a bluetooth module 350 in fig. 2.
The processor is used for receiving the position information of the first vehicles collected by the radar and determining the ID of each first vehicle collected by the radar;
after receiving information of second vehicles acquired by target gate equipment, determining whether each second vehicle is acquired by the target gate equipment for the first time; wherein the monitoring area of the target gate device and the monitoring area of the radar have an overlapping area; the information of the second vehicle collected by the target gate device comprises appearance characteristic information used for identifying the identity of the vehicle and the driving sequence of the vehicle;
if the target second vehicle is acquired by the target gate equipment for the first time, determining a target first vehicle from the first vehicles acquired by the radar; the time of receiving the position information of the target first vehicle is within a preset time length before the time of receiving the information of the target second vehicle, and the ID of the target first vehicle is not bound with the appearance characteristic information in a preset time period; the preset time period is a second preset time period before the time of receiving the information of the target second vehicle;
if the ID of the target first vehicle is not bound with the appearance characteristic information before the preset time period, and the running sequence determined according to the position information of the target first vehicle is the same as the running sequence of the target second vehicle, the ID of the target first vehicle and the appearance characteristic information of the target second vehicle are bound to realize monitoring of the vehicles running on the road.
Optionally, the processor is specifically configured to:
determining that the driving sequence of the target vehicles is a first driving sequence if the number of the target first vehicles is one;
if the number of the target first vehicles is multiple, determining the distance traveled by each target first vehicle within a time interval according to the time interval between the time of receiving the position information of the target first vehicle and the time of receiving the information of the target second vehicle, the speed of the target first vehicle and the acceleration of the target first vehicle;
determining the position information of the target first vehicle when the target gate equipment acquires the target first vehicle according to the running distance of the target first vehicle in a time interval and the position information of the target first vehicle;
and determining the running sequence of the target first vehicle according to the position information of the target first vehicle when the target first vehicle is collected by the target gate equipment.
Optionally, the processor is further configured to:
and determining that the lane where the target first vehicle and the target second vehicle are located is the same.
Optionally, the processor is further configured to:
and if the ID of the target first vehicle is bound with the appearance characteristic information before the preset time period, and the running sequence determined according to the position information of the target first vehicle is the same as the running sequence of the target second vehicle, correcting the appearance characteristic information bound with the ID according to the confidence coefficient of the appearance characteristic information of the target second vehicle and the confidence coefficient of the appearance characteristic information bound with the ID.
Optionally, the appearance characteristic information includes a license plate number, and the processor is specifically configured to:
if the difference between the confidence coefficient of the received license plate number of the target second vehicle and the confidence coefficient of the ID-bound license plate number exceeds a preset value, and the confidence coefficient of the received license plate number of the target second vehicle is greater than the confidence coefficient of the ID-bound license plate number, updating the ID-bound license plate number into the received license plate number of the target second vehicle; or
If the difference between the confidence level of the received license plate number of the target second vehicle and the confidence level of the ID-bound license plate number does not exceed a preset value, updating the number in the ID-bound license plate number for each number in the ID-bound license plate number according to the number with the larger confidence level in the confidence level of the number in the received license plate number of the target second vehicle and the confidence level of the number in the ID-bound license plate number.
In an exemplary embodiment, a storage medium including instructions, such as a memory including instructions, executable by a processor of an electronic device to perform the vehicle information acquisition method is also provided. Alternatively, the storage medium may be a non-transitory computer readable storage medium, which may be, for example, a ROM, a Random Access Memory (RAM), a CD-ROM, a magnetic tape, a floppy disk, an optical data storage device, and the like.
An embodiment of the present invention further provides a computer program product, which, when running on an electronic device, causes the electronic device to execute a method for acquiring vehicle information, where the method is described in any one of the above embodiments of the present invention.
Other embodiments of the invention will be apparent to those skilled in the art from consideration of the specification and practice of the invention disclosed herein. This invention is intended to cover any variations, uses, or adaptations of the invention following, in general, the principles of the invention and including such departures from the present disclosure as come within known or customary practice within the art to which the invention pertains. It is intended that the specification and examples be considered as exemplary only, with a true scope and spirit of the invention being indicated by the following claims.
It will be understood that the invention is not limited to the precise arrangements described above and shown in the drawings and that various modifications and changes may be made without departing from the scope thereof. The scope of the invention is limited only by the appended claims.
Claims (10)
1. An electronic device, comprising: a receiving unit and a processor;
the receiving unit is used for receiving information sent by the radar and receiving information sent by the target card port equipment;
the processor is used for receiving the position information of the first vehicles collected by the radar and determining the ID of each first vehicle collected by the radar;
after receiving information of second vehicles acquired by target gate equipment, determining whether each second vehicle is acquired by the target gate equipment for the first time; wherein the monitoring area of the target gate device and the monitoring area of the radar have an overlapping area; the information of the second vehicle collected by the target gate device comprises appearance characteristic information used for identifying the identity of the vehicle and the driving sequence of the vehicle;
if the target second vehicle is acquired by the target gate equipment for the first time, determining a target first vehicle from the first vehicles acquired by the radar; the method comprises the steps that the time of receiving position information of a target first vehicle is within a first preset time before the time of receiving information of a target second vehicle, and appearance feature information is not bound to an ID of the target first vehicle in a preset time period; the preset time period is a second preset time period before the time of receiving the information of the target second vehicle;
if the ID of the target first vehicle is not bound with the appearance characteristic information before the preset time period, and the running sequence determined according to the position information of the target first vehicle is the same as the running sequence of the target second vehicle, the ID of the target first vehicle and the appearance characteristic information of the target second vehicle are bound to realize monitoring of the vehicles running on the road.
2. The electronic device of claim 1, wherein the processor is specifically configured to:
if the number of the target first vehicles is one, determining that the driving sequence of the target vehicles is a first driving sequence;
if the number of the target first vehicles is multiple, determining the distance traveled by each target first vehicle within a time interval according to the time interval between the time of receiving the position information of the target first vehicle and the time of receiving the information of the target second vehicle, the speed of the target first vehicle and the acceleration of the target first vehicle;
determining the position information of the target first vehicle when the target gate equipment acquires the target first vehicle according to the running distance of the target first vehicle in a time interval and the position information of the target first vehicle;
and determining the running sequence of the target first vehicle according to the position information of the target first vehicle when the target first vehicle is collected by the target gate equipment.
3. The electronic device of claim 2, wherein the processor is further configured to:
and determining that the lane where the target first vehicle and the target second vehicle are located is the same.
4. The electronic device of any of claims 1-3, wherein the processor is further configured to:
and if the ID of the target first vehicle is bound with the appearance characteristic information before the preset time period, and the running sequence determined according to the position information of the target first vehicle is the same as the running sequence of the target second vehicle, correcting the appearance characteristic information bound with the ID according to the confidence coefficient of the appearance characteristic information of the target second vehicle and the confidence coefficient of the appearance characteristic information bound with the ID.
5. The electronic device of claim 4, wherein the appearance characteristic information comprises a license plate number, and wherein the processor is specifically configured to:
if the difference between the confidence coefficient of the received license plate number of the target second vehicle and the confidence coefficient of the ID-bound license plate number exceeds a preset value, and the confidence coefficient of the received license plate number of the target second vehicle is greater than the confidence coefficient of the ID-bound license plate number, updating the ID-bound license plate number into the received license plate number of the target second vehicle; or
If the difference between the confidence level of the received license plate number of the target second vehicle and the confidence level of the ID-bound license plate number does not exceed a preset value, updating the number in the ID-bound license plate number for each number in the ID-bound license plate number according to the number with the larger confidence level in the confidence level of the number in the received license plate number of the target second vehicle and the confidence level of the number in the ID-bound license plate number.
6. A vehicle information acquisition method characterized by comprising:
receiving position information of first vehicles acquired by a radar, and determining the ID of each first vehicle acquired by the radar;
after receiving information of second vehicles acquired by target gate equipment, determining whether each second vehicle is acquired by the target gate equipment for the first time; wherein the monitoring area of the target gate device and the monitoring area of the radar have an overlapping area; the information of the second vehicle collected by the target gate device comprises appearance characteristic information used for identifying the identity of the vehicle;
if the target second vehicle is acquired by the target gate equipment for the first time, determining a target first vehicle from the first vehicles acquired by the radar; the method comprises the steps that the time of receiving position information of a target first vehicle is within a first preset time before the time of receiving information of a target second vehicle, and appearance feature information is not bound to an ID of the target first vehicle in a preset time period; the preset time period is a second preset time period before the time of receiving the information of the target second vehicle;
if the ID of the target first vehicle is not bound with the appearance characteristic information before the preset time period, and the running sequence determined according to the position information of the target first vehicle is the same as the running sequence of the determined target second vehicle, the ID of the target first vehicle and the appearance characteristic information of the target second vehicle are bound to realize monitoring of the vehicles running on the road.
7. The vehicle information acquisition method according to claim 6, wherein determining a travel order from the position information of the target first vehicle includes:
if the number of the target first vehicles is one, determining that the driving sequence of the target vehicles is a first driving sequence;
if the number of the target first vehicles is multiple, determining the distance traveled by each target first vehicle within a time interval according to the time interval between the time of receiving the position information of the target first vehicle and the time of receiving the information of the target second vehicle, the speed of the target first vehicle and the acceleration of the target first vehicle;
determining the position information of the target first vehicle when the target gate equipment acquires the target first vehicle according to the running distance of the target first vehicle in a time interval and the position information of the target first vehicle;
and determining the running sequence of the target first vehicle according to the position information of the target first vehicle when the target first vehicle is collected by the target gate equipment.
8. The vehicle information acquisition method according to claim 7, wherein before the binding of the ID of the target first vehicle and the appearance characteristic information of the target second vehicle, the method further comprises:
and determining that the lane where the target first vehicle and the target second vehicle are located is the same.
9. The vehicle information acquisition method according to any one of claims 6 to 8, characterized by further comprising:
and if the ID of the target first vehicle is bound with the appearance characteristic information before the preset time period, and the driving sequence determined according to the position information of the target first vehicle is the same as the determined driving sequence of the target second vehicle, correcting the appearance characteristic information bound with the ID according to the confidence coefficient of the appearance characteristic information of the target second vehicle and the confidence coefficient of the appearance characteristic information bound with the ID.
10. The vehicle information acquisition method according to claim 9, wherein the appearance feature information includes a license plate number, and the modifying of the ID-bound appearance feature information according to the confidence of the appearance feature information of the target second vehicle and the confidence of the ID-bound appearance feature information includes:
if the difference between the confidence coefficient of the received license plate number of the target second vehicle and the confidence coefficient of the ID-bound license plate number exceeds a preset value, and the confidence coefficient of the received license plate number of the target second vehicle is greater than the confidence coefficient of the ID-bound license plate number, updating the ID-bound license plate number into the received license plate number of the target second vehicle; or
If the difference between the confidence level of the received license plate number of the target second vehicle and the confidence level of the ID-bound license plate number does not exceed a preset value, updating the number in the ID-bound license plate number for each number in the ID-bound license plate number according to the number with the larger confidence level in the confidence level of the number in the received license plate number of the target second vehicle and the confidence level of the number in the ID-bound license plate number.
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