CN114299624A - Road occupation parking mobile acquisition system - Google Patents
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Abstract
The invention discloses a road occupation parking mobile acquisition system, which obtains current parking space information according to the positioning of a vehicle-mounted positioning terminal, simultaneously reads a vehicle-mounted ETC terminal to obtain first license plate information, then carries out license plate proofreading with a second group of parking information generated by a license plate video recognition module, provides parking order information for a parking platform if the proofreading is successful, initiates an abnormal order to the parking platform if the proofreading is failed, and waits for the platform to carry out further judgment and processing. The ETC recognition accuracy is fully exerted, secondary calibration is carried out by means of video recognition, corresponding parking evidence photos are obtained, the probability of abnormal parking evidence obtaining is reduced fundamentally, and the parking information accuracy is effectively improved.
Description
Technical Field
The invention relates to the technical field of urban parking acquisition and patrol systems, in particular to a mobile acquisition system for occupying-road parking.
Background
At present, urban lane occupation parking information acquisition means are various and comprise technical means such as geomagnetic monitoring, POS acquisition, mobile inspection vehicles, high-level videos or lateral video piles and the like, but lane occupation parking evidence obtaining mainly comprises three technical modes, namely a traditional POS manual acquisition evidence obtaining mode completely depends on personnel to perform manual identification and confirmation processing, vehicle evidence obtaining information dislocation (parking berth input error and license plate identification confirmation error) often occurs, and the labor cost is high; secondly, a fixed-point acquisition mode of a high-level video or a side video pile is adopted, but the view angle problem cannot completely cover the parking range, and when the parking position is abnormal or the vehicle owner does not normally park, the parking evidence obtaining dislocation (the parking position is judged inaccurately, and the parking position and the license plate are bound wrongly) frequently occurs, so that the method is limited, the construction cost of the curve is too high, the problems of leaf and landscape view shielding and the like are further faced, and the operation and maintenance cost is high. Thirdly, a mobile video snapshot identification means based on a video identification technology, but the scheme also has a great disadvantage that the method cannot effectively cope with the situation that the parking density of the vehicle is too high and the vehicle owner does not stop in a standard way, meanwhile, due to the limitation of the intelligent license plate recognition technology, when the collected berths are parked on unlicensed vehicles or other special vehicles (three-wheeled vehicles, motorcycles and electric bicycles), other license plates (side parking license plates) appear in the range of the video image, so that the parking and evidence obtaining dislocation of the target parking position (the binding error between the parking position and the license plate) is more serious distortion of the parking order information influencing the peripheral parking positions, and the error triggering of the vehicle in-out operation easily causes unnecessary complaints, greatly reduces the economy and adaptability of the mobile collection vehicle, therefore, an urban parking road occupation operation unit urgently wants a road occupation parking acquisition means which is low in cost, high in accuracy and capable of adapting to various environments.
Disclosure of Invention
The invention aims to provide a road occupation parking mobile acquisition system for solving the problems, highly integrates an ETC technology, a high-precision positioning technology and a mobile video license plate recognition technology, is installed on a mobile acquisition vehicle, and uniformly supplies power through a vehicle-mounted storage battery, namely the ETC technology is integrated into a mobile patrol acquisition vehicle based on the video recognition technology, so that the ETC recognition precision is fully exerted, secondary calibration is carried out by means of video recognition, corresponding parking evidence photos are obtained, the abnormal probability of parking evidence taking is reduced fundamentally, and the parking information precision is effectively improved; the method mainly comprises the following steps: the method comprises the steps of firstly obtaining current parking position information according to the positioning of a vehicle-mounted positioning terminal, simultaneously reading a vehicle-mounted ETC terminal to obtain first license plate information, then carrying out license plate proofreading on the second group of parking information generated by a license plate video recognition module, providing parking order information to a parking platform if the proofreading is successful, initiating an abnormal order to the parking platform if the proofreading is failed, and waiting for the platform to carry out further judgment processing.
The invention realizes the purpose through the following technical scheme:
a mobile acquisition system for occupying-road parking comprises a berth positioning and main control module, an ETC identification acquisition module, a license plate video identification module and a parking information interaction communication module;
the berth positioning and main control module determines the current berth to be collected and evidence obtained by monitoring the vehicle position information of the patrol collected vehicle in real time; starting the parking information collection of each parking lot according to the position of the vehicle which is continuously changed during the patrol collection, and logically checking the parking information;
the parking position positioning and main control module reads parking positions within a certain distance from the current vehicle position (default is 10 meters, flexible adjustment is carried out according to a parking road section where the vehicle is located) by combining a pre-stored parking position longitude and latitude information recording table in the vehicle driving process, and according to the position distance change relation brought by vehicle driving, the previous parking position, the current parking position and the next parking position are respectively determined.
After a new 'next' parking space is collected, a 'new parking space parking evidence obtaining photographing evidence obtaining notification' is initiated to the 'license plate video recognition module', after the 'current parking space' is reached, a 'current parking space parking collection and correction notification' is initiated to the 'ETC recognition collection module', and after the 'current parking space' is left, a 'previous parking space evidence obtaining reporting inspection notification' is initiated to the 'license plate video recognition module'.
The ETC identification and acquisition module is used for acquiring and identifying the number plate of the vehicle and the detailed information of the number plate and performing first proofreading processing on the number plate of the vehicle;
after the ETC identification and acquisition module receives the parking location and the master control module issues a current parking location parking acquisition notice, the ETC identification and acquisition module needs to monitor the access of a new vehicle number plate in real time, then accesses a current parking location vehicle number plate identification result prestored in the license plate video identification module, and starts the comparison of vehicle number plate information, and if the comparison result is inconsistent, the ETC identification and acquisition module directly forwards the parking information interactive communication module for further investigation; if the comparison result is consistent, generating parking evidence-taking information (vehicle number plate related information and vehicle number plate multi-group photo information) of the parking lot, and then forwarding the parking information interactive communication module to directly report parking order information.
If a new vehicle number plate is not monitored, the current parking space is free, the current parking space can belong to special vehicles such as three types of vehicles and motorcycles, and can also belong to an OBU (inductive card) without ETC technology, the monitoring and acquisition of parking space parking information is abandoned, the license plate video identification module directly carries out the handling processing, and after a new 'current parking space parking acquisition notice' is sent out by the parking space positioning and main control module, a new round of monitoring processing is started.
The license plate video recognition module is used for recognizing a license plate of a vehicle, photographing the current parking condition of a target parking space to obtain evidence, and providing secondary proofreading and generating a parking picture basis for the ETC recognition acquisition module;
after the license plate video recognition module receives the parking positioning and main control module and issues a new parking position parking evidence obtaining, photographing and evidence obtaining notice, photographing parking position information (vehicle tail license plate recognition and vehicle head license plate recognition), and waiting for a vehicle ETC terminal to perform vehicle license plate correction and waiting for parking information and photo reading;
after the license plate video recognition module receives the parking location and the 'last parking position evidence obtaining and reporting inspection notice' issued by the main control module, if the first proofreading fails, the second and third proofreading needs to be organized, which relates to the following four recognition results:
A. and if the video acquisition result shows that the target parking space is idle, directly forwarding a parking information interaction communication module to emergently report that the current parking space is idle.
B. And if the second round of correction is successful, adopting a first round of generation flow and reporting a normal parking information order.
C. If the third round of proofreading is successful, it is indicated that the destination vehicle may not be equipped with an ETC OBU (inductive card), and a conventional manner is adopted to report a vehicle parking order that needs to be reconfirmed.
D. If the third round of proofreading fails, it is indicated that the target vehicle is brand-free or special vehicles such as a tricycle, a motorcycle, an electric bicycle and the like, the parking information interaction communication module is forwarded to report that the current parking information is abnormal, and a background is required to accept and further process the abnormal parking information.
The parking information interactive communication module is used for reporting parking space and parking information, and particularly monitors and responds parking space parking information acquired by the ETC identification acquisition module and the license plate video identification module in real time to generate corresponding parking information (parking reliability, vehicle license plate, license plate color, tail photo, head photo and the like); and the system is communicated with a parking platform and a background to finish the reporting of parking information (or the reporting of parking idle) and the reporting or continuous transmission of parking photos.
The invention has the beneficial effects that:
the parking order evidence chain defect problem is effectively avoided; the problem of parking information dislocation cannot be solved from the root by a traditional POS manual acquisition mode and subsequent derivation measures, and although the problem of video dead angles is effectively solved by additionally installing an encryption hardware deployment mode for high-level video or lateral video pile fixed-point acquisition, the problem of parking position overlapping identification is also derived to be new; if the patrol collection vehicle based on the video is used only or the ETC is used independently for patrol collection, the problem of wrong or missing parking information exists.
The invention highly integrates the ETC technology, the high-precision positioning technology and the mobile video license plate recognition technology, can fully exert the accurate acquisition advantage of the ETC technology, can effectively utilize the advantages of convenience, economy, high adaptability and the like brought by the mobile video acquisition and recognition technology, can obviously reduce the complaint probability brought by abnormal operation orders, effectively improve the operation service quality, and simultaneously effectively support other additional applications brought by ETC, such as ETC payment, fake-licensed vehicle early warning and the like.
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In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the embodiments or the drawings needed to be practical in the prior art description, and obviously, the drawings in the following description are only some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.
FIG. 1 is a flow chart of ETC license plate number plate recognition and collection;
fig. 2 a schematic layout of an ETC collection terminal.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the technical solutions of the present invention will be described in detail below. It is to be understood that the described embodiments are merely exemplary of the invention, and not restrictive of the full scope of the invention. All other embodiments, which can be derived by a person skilled in the art from the examples given herein without any inventive step, are within the scope of the present invention.
In any embodiment, as shown in fig. 1-2, the present invention provides a system for acquiring occupied parking movement, which is implemented as follows:
(1) equipment installation configuration requirements:
this application is unified to be installed in removing the collection car, and the power supply is unified to the on-vehicle battery of rethread, accomplishes to occupy the way and parks automatic acquisition and monitoring.
Because the vehicle-mounted OBU (inductive card) is installed at the windshield of the left front side of the vehicle, certain requirements exist on the acquisition, identification and installation of the ETC acquisition terminal, namely the ETC terminal antenna is erected at the top of the rear part of the right side of the vehicle, then the antenna identification direction is configured by deflecting 30 degrees towards the parking direction of the vehicle along the reverse driving direction of a lane, the installation height of the antenna is higher than that of the acquisition vehicle by 10-30CM for installation and configuration, the specific height needs to be weighed and defined according to the actual use condition of a project, and a related installation schematic diagram is shown in figure 2.
(2) Parking information acquisition and scheduling:
when the vehicle collecting position changes, the next berth in a certain range is monitored in real time, the current berth and the previous berth are collected and checked synchronously, and the judgment idea is as follows:
after a new ' next ' berth is collected, initiating ' new berth parking evidence obtaining, shooting and evidence obtaining notification ' to a ' license plate video recognition module ', simultaneously judging whether a ' current berth ' exists (at a vehicle real-time collection position), and if so, initiating ' current berth parking collection and proofreading notification ' to an ' ETC recognition collection module; meanwhile, whether the previous parking space exists or not (the position of the vehicle is collected in real time) needs to be judged, and if the previous parking space exists, the current parking space parking collection and correction notice needs to be sent to the license plate video recognition module.
When the position of the vehicle changes, but the advancing direction does not have ' next berth ', but ' current berth ' exists, the system initiates ' current berth parking acquisition and checking notification ' to the ' ETC identification acquisition module, and if ' last berth ' exists, the system initiates ' last berth evidence obtaining information inspection reporting notification ' to the ' license plate video identification module '.
(3) Parking information acquisition identification process:
firstly, a license plate video recognition module initiates intelligent recognition of a license plate at the tail of a vehicle of the next parking space, and simultaneously pre-stores parking photo information corresponding to the parking space; when a vehicle is about to drive into the parking space, the ETC recognition and acquisition module initiates the reading and recognition of the vehicle information of the current parking space, namely, a first license plate (from the license plate video recognition module to recognize the vehicle tail number plate) and a second license plate (from the ETC acquisition module) of the parking space are compared (including vehicle characters and license plate colors), and the parking information is compared and forwarded by the parking information interaction communication module to be reported. When the vehicle is actively driven away from the current parking space, the license plate video recognition module initiates the intelligent recognition of the license plate of the vehicle at the head of the vehicle at the previous parking space, and the specific judgment logic is as follows:
ETC discerns collection module feedback "license plate is credible": namely, if the first check is successful (the first license plate is compared with the second license plate), the generation and report of the parking order information including the license plate number, the license plate color, the car tail photo, the car head photo and the like can be completed directly according to the parking order report requirement of the parking cloud platform.
The ETC identification and acquisition module feeds back 'license plate inconsistency': a second third calibration operation needs to be organized
Firstly, starting second-time proofreading, namely performing second-time proofreading (including vehicle characters and license plate colors) on a third license plate (from a license plate video recognition module to recognize a vehicle head license plate) and a second license plate (from an ETC acquisition module) of the parking lot, and if the comparison is consistent, generating parking order information including parking photos (vehicle heads) with consistent vehicle license plates, license plate colors and vehicle license plates by adopting an ETC recognition result;
if the second time of proofreading fails, initiating third time of proofreading (comprising vehicle characters and license plate colors), comparing the first license plate (from the license plate video recognition module to recognize the vehicle tail license plate) with the third license plate (from the license plate video recognition module to recognize the vehicle head license plate), and if the comparison is successfully completed, generating a parking order with low parking reliability (determining whether to be checked or not by the parking platform according to the self requirement).
And if the three license plate results are completely inconsistent, generating parking abnormal information, and forwarding the parking platform for further processing.
ETC does not feed back, and license plate video identification module feeds back "idle": the vehicle license video recognition module directly completes information report related to parking space vacancy (if the platform needs, corresponding photos are uploaded) according to an empty parking space report requirement of the parking cloud platform after the vehicle license video recognition module does not receive the vehicle license recognition results of the vehicle head and the vehicle tail of the vehicle recognition camera or the parking space is vacant; if it is
ETC does not feed back, and the license plate video recognition module feeds back 'use':
the method includes the steps that a first license plate (from a license plate video recognition module for recognizing a vehicle tail number plate) and a third license plate (from a license plate video recognition module for recognizing a vehicle head number plate) of a target parking space are directly compared, if the comparison is consistent and the characters of the license plates are legal, the situation that the OBU terminal of the ETC technology is not installed on a target parking space parking vehicle is indicated, and a parking order with low parking reliability can be generated (whether to be checked or not is determined by a parking platform according to the requirements of the parking platform).
If the comparison is inconsistent or the number of the vehicle is illegal (such as' electricity ×), the target berth is stopped to a unlicensed vehicle or special vehicles such as three-wheeled vehicles, motorcycles, electric bicycles and the like, and the further processing is required to be carried out by a background.
The above description is only for the specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present invention, and all the changes or substitutions should be covered within the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the appended claims. It should be noted that the various technical features described in the above embodiments can be combined in any suitable manner without contradiction, and the invention is not described in any way for the possible combinations in order to avoid unnecessary repetition. In addition, any combination of the various embodiments of the present invention is also possible, and the same should be considered as the disclosure of the present invention as long as it does not depart from the spirit of the present invention.
Claims (5)
1. A mobile acquisition system for occupied parking is characterized by comprising a berth positioning and main control module, an ETC (electronic toll Collection) identification acquisition module, a license plate video identification module and a parking information interaction communication module;
the berth positioning and main control module determines the current berth to be collected and evidence obtained by monitoring the vehicle position information of the patrol collected vehicle in real time; starting the parking information collection of each parking lot according to the position of the vehicle which is continuously changed during the patrol collection, and logically checking the parking information;
the ETC identification and acquisition module is used for acquiring and identifying the number plate of the vehicle and the detailed information of the number plate and performing first proofreading processing on the number plate of the vehicle;
the license plate video recognition module is used for recognizing a license plate of a vehicle, photographing the current parking condition of a target parking space to obtain evidence, and providing secondary proofreading and generating a parking picture basis for the ETC recognition acquisition module;
the parking information interactive communication module is used for reporting parking space and parking information, and particularly monitors and responds parking space parking information acquired by the ETC identification acquisition module and the license plate video identification module in real time to generate corresponding parking information; and the parking information reporting and the parking photos reporting or continuing to transmit are finished by communicating with the parking platform and the background.
2. The on-road parking mobile acquisition system of claim 1, wherein the berth positioning and main control module reads the berth within a certain distance from the current vehicle position by combining with a prestored berth longitude and latitude information recording table in the vehicle driving process, and respectively determines the previous berth, the current berth and the next berth according to the position distance variation relation brought by the vehicle driving;
after a new 'next' parking space is collected, a 'new parking space parking evidence obtaining photographing evidence obtaining notification' is initiated to the 'license plate video recognition module', after the 'current parking space' is reached, a 'current parking space parking collection and correction notification' is initiated to the 'ETC recognition collection module', and after the 'current parking space' is left, a 'previous parking space evidence obtaining reporting inspection notification' is initiated to the 'license plate video recognition module'.
3. The system according to claim 1, wherein the ETC identification and collection module monitors access of a new vehicle license plate in real time after receiving the parking location and the main control module issuing the "current parking acquisition notice", then accesses the identification result of the current parking vehicle license plate prestored in the "license plate video identification module", and starts the comparison of the vehicle license plate information, and if the comparison result is not consistent, the system directly forwards the "parking information interaction communication module" for further investigation; if the comparison result is consistent, generating parking evidence obtaining information of the parking lot, and then forwarding the parking order information directly reported by a parking information interaction communication module;
and if no new vehicle license plate is monitored, the monitoring and acquisition of parking information of the parking lot is abandoned, the license plate video recognition module directly handles the monitoring and acquisition, and a new round of monitoring and processing is started after the parking lot positioning and main control module sends a new current parking lot acquisition notice.
4. The system according to claim 1, wherein the license plate video recognition module takes a picture of the parking information after receiving the notification of 'new parking position parking evidence-taking and evidence-taking notice' issued by the parking position positioning and main control module, and then waits for the ETC recognition and collection module to perform vehicle license plate checking, and to wait for parking information and picture reading.
5. The on-road parking mobile collection system of claim 1, wherein after the license plate video recognition module receives the parking location and the main control module issues the "last parking position evidence obtaining reporting inspection notification", if the first proofreading fails, the second and third proofreading needs to be organized, which relates to the following four recognition results:
A. if the video acquisition result shows that the target parking space is idle, directly forwarding a parking information interaction communication module to emergently report that the current parking space is idle;
B. if the second round of proofreading is successful, adopting a first round of generation flow and reporting a normal parking information order;
C. if the third round of proofreading is successful, reporting a vehicle parking order needing to be confirmed again in a traditional mode;
D. if the third round of correction fails, the 'parking information interaction communication module' is forwarded to report that the current parking information is abnormal, and the background is accepted for further processing.
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