CN112927558A - Roadside parking space unmanned management method based on image analysis and recording - Google Patents

Roadside parking space unmanned management method based on image analysis and recording Download PDF

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Publication number
CN112927558A
CN112927558A CN202110267774.0A CN202110267774A CN112927558A CN 112927558 A CN112927558 A CN 112927558A CN 202110267774 A CN202110267774 A CN 202110267774A CN 112927558 A CN112927558 A CN 112927558A
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China
Prior art keywords
parking space
parking
camera
remote server
management method
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CN202110267774.0A
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Chinese (zh)
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不公告发明人
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Hangzhou Jingyi Intelligent Science and Technology Co Ltd
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Hangzhou Jingyi Intelligent Science and Technology Co Ltd
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Priority to CN202110267774.0A priority Critical patent/CN112927558A/en
Publication of CN112927558A publication Critical patent/CN112927558A/en
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    • G—PHYSICS
    • G08—SIGNALLING
    • G08G—TRAFFIC CONTROL SYSTEMS
    • G08G1/00—Traffic control systems for road vehicles
    • G08G1/14—Traffic control systems for road vehicles indicating individual free spaces in parking areas
    • G08G1/145—Traffic control systems for road vehicles indicating individual free spaces in parking areas where the indication depends on the parking areas
    • G08G1/147—Traffic control systems for road vehicles indicating individual free spaces in parking areas where the indication depends on the parking areas where the parking area is within an open public zone, e.g. city centre
    • G—PHYSICS
    • G07—CHECKING-DEVICES
    • G07B—TICKET-ISSUING APPARATUS; FARE-REGISTERING APPARATUS; FRANKING APPARATUS
    • G07B15/00—Arrangements or apparatus for collecting fares, tolls or entrance fees at one or more control points
    • G07B15/02—Arrangements or apparatus for collecting fares, tolls or entrance fees at one or more control points taking into account a variable factor such as distance or time, e.g. for passenger transport, parking systems or car rental systems
    • G—PHYSICS
    • G08—SIGNALLING
    • G08G—TRAFFIC CONTROL SYSTEMS
    • G08G1/00—Traffic control systems for road vehicles
    • G08G1/01—Detecting movement of traffic to be counted or controlled
    • G08G1/017—Detecting movement of traffic to be counted or controlled identifying vehicles
    • G08G1/0175—Detecting movement of traffic to be counted or controlled identifying vehicles by photographing vehicles, e.g. when violating traffic rules
    • G—PHYSICS
    • G08—SIGNALLING
    • G08G—TRAFFIC CONTROL SYSTEMS
    • G08G1/00—Traffic control systems for road vehicles
    • G08G1/14—Traffic control systems for road vehicles indicating individual free spaces in parking areas
    • G08G1/145—Traffic control systems for road vehicles indicating individual free spaces in parking areas where the indication depends on the parking areas
    • G08G1/148—Management of a network of parking areas

Abstract

The invention discloses an image analysis and record-based roadside parking space unmanned management method, which is applied to the unmanned parking charge management of a side-entry parking space, wherein a triangular mark is arranged in the parking space, a camera is arranged in front of the side, the camera is provided with a wireless module and can be connected with a remote server through a wireless network, and the remote server is provided with an unmanned management method, and the unmanned management method comprises the following steps: initializing by a camera, and acquiring parking space images f without vehicles0(ii) a The camera collects parking space images f at fixed time intervals TiSending the data to a remote server; when the vehicle drives into the parking space, the remote server is used for displaying the parking space image fmRecognizing the number P of license plate, comparing P with parking time tmAnd fmStoring; when the vehicle stopsOn the parking space, the remote server saves the current time tkAnd parking space image fk(ii) a When the vehicle exits the parking space, the remote server displays the parking space image fnAnd f0Matching is carried out; and after the matching is successful, calculating the parking fee.

Description

Roadside parking space unmanned management method based on image analysis and recording
Technical Field
The invention relates to an image analysis and recording-based roadside parking space unmanned management method, and belongs to the technical field of smart cities and traffic.
Background
With the development of society and the improvement of living standard, urban automobiles are more and more. In order to solve the problem of difficult parking, a plurality of parking spaces are planned on the two sides of the road. Because the positions are scattered, centralized management is not facilitated, management personnel needs to be configured, but the management personnel is located in the open air and has a large management range, and a lot of difficulties are brought to management work. Thus requiring unattended management.
There are three types of roadside parking spaces: the parking lot has a small number of straight-in parking lots and inclined parking lots, and for the two parking lots, the cameras can be arranged at the bottoms of the parking lots for license plate recognition, so that the problem of parking charge can be solved well; the larger number is side-entry parking spaces. The side-entry parking space camera can only be installed on the side face, and is not beneficial to shooting license plate images of vehicles. Patent 201610864227X proposes a snapshot device of two mesh structures, installs between two parking stalls, can shoot the vehicle license plate information on two front and back parking stalls simultaneously. The scheme can solve the problem that the license plate cannot be captured under the condition that the parking position of the vehicle is too far forward or backward. But this solution results in a doubling of the equipment investment costs.
Disclosure of Invention
The invention aims to solve the problems and provides a roadside parking space unmanned management method based on image analysis and recording, which uses a monocular camera to complete the detection of parking and exiting of vehicles from parking spaces and realizes unmanned parking space charging management.
The technical scheme adopted by the invention for solving the technical problems is as follows:
the roadside parking space unmanned management method based on image analysis and recording is applied to the unmanned parking charge management of side-entering parking spaces on two sides of a road, a front parking space boundary line, a rear parking space boundary line, an outer boundary line and an inner boundary line are arranged on the periphery of each parking space, a triangular mark representing the parking direction is arranged inside each parking space, a camera is arranged in the opposite direction of the included angle center line of the front parking space boundary line and the inner boundary line of each parking space, the camera is over against an access channel of the parking space, and the triangular mark is arranged on the optical axis of the camera; the camera is provided with a unique equipment number, the camera is provided with a wireless module, a remote server which can be connected with a wireless network to manage parking spaces can upload vehicle images containing license plate numbers and match corresponding parking spaces through the equipment number, the remote server is provided with a license plate recognition function and an unmanned management method, and the unmanned management method comprises the following steps:
(1) the camera collects parking space images f in the initialization stage0Identifying the triangular mark and marking a pixel area as S;
(2) the camera collects parking space images f at intervals of fixed time TiSending the data to the remote server, wherein i is the sampling frequency, and i =1, 1, 2;
(3) when the vehicle enters the parking space, the remote server is used for displaying the parking space image fmIdentifying the license plate number P of the vehicle, and determining the license plate number P and the parking time tmAnd parking space image fmStoring;
(4) when the vehicle stops in the parking space, the remote server stores the current time tkAnd parking space image fk；
(5) When the vehicle drives out of the parking space, the remote server displays the parking space image fnAnd f0Matching is carried out in the pixel region S; after matching is successful, calculating parking fee q = (t)n-1-tm) R, wherein r is a charging standard, and then the associated account deduction of the license plate number P is carried out.
The camera has a light supplementing function and can shoot clear images under the condition of insufficient illumination.
The height of the camera from the ground is set to be 1 m-1.5 m.
The distance between the camera and the inner boundary line of the parking space is set to be 30-50 cm.
The included angle between the optical axis of the camera and the ground is set to be 30-40 degrees.
The invention has the following beneficial effects: 1, unmanned parking charging management is realized, and heavy labor is avoided; and 2, a monocular camera is adopted to collect vehicle images, so that the detection of parking and exiting of the vehicle from the parking space is completed, and the cost is reduced.
Drawings
FIG. 1 is a schematic view of a camera mounting in an embodiment of the invention;
fig. 2 is a flowchart of an unmanned management method according to an embodiment of the present invention.
Detailed Description
The invention is further described below with reference to the accompanying drawings:
referring to fig. 1-2, the image analysis and recording based roadside parking space unmanned management method is applied to unmanned parking charge management of side-entry parking spaces on both sides of a road, wherein the side-entry parking spaces are arranged along the direction of the road, so that the influence on vehicles on the road is small when the vehicles are parked and driven out, but the vehicles are parked along the direction of the road, the license plate is difficult to grab, and if the parking positions of the vehicles are close to the front vehicle, the license plate is shielded, and the difficulty in grabbing the license plate is increased.
The parking space is provided with a front parking space boundary 3, a rear parking space boundary, an outer boundary line and an inner boundary line 2 at the periphery, and a triangular mark representing the parking direction is arranged inside the parking space and is also used as a mark of an empty parking space. The parking space is characterized in that a camera 1 is arranged in the reverse direction of the center line of the included angle between the front parking space boundary line 3 and the inner boundary line 2 of the parking space, the camera 1 is over against the access passage of the parking space, and the triangular mark is arranged on the optical axis of the camera 1. When a vehicle enters the parking space, the camera 1 can shoot a vehicle image, no matter the head or the tail of the vehicle; when no vehicle enters the parking space, the camera 1 captures the triangular mark.
In order to better shoot the license plate image of a vehicle running into the parking space, the height from the ground of the camera 1 is set to be 1 m-1.5 m, the distance from the inner boundary line 2 of the parking space is set to be 30 cm-50 cm, and the included angle between the optical axis of the camera 1 and the ground is set to be 30-40 degrees. Meanwhile, in order to realize image acquisition in a night environment, the camera 1 has a light supplementing function, and can shoot clear images under the condition of insufficient illumination.
The camera 1 is provided with a unique equipment number for matching with a corresponding parking space. The camera 1 is provided with a wireless module, can be connected with a remote server for parking space management through a wireless network, and can upload vehicle images containing license plate numbers. The wireless module is set as a 4G/5G module.
The remote server is provided with a license plate recognition function and an unmanned management method. The license plate recognition function is used for extracting license plate information in the vehicle picture uploaded by the camera 1, and the unmanned management method comprises the following steps:
(1) the camera 1 collects parking space images f in the initialization stage0Identifying the triangular mark and marking a pixel area as S;
due to the characteristics of the parking space, when a vehicle is parked on the parking space, the license plate is often blocked by the parked vehicle in front, and the license plate number cannot be used as the judgment basis of the parking duration, but the time until an empty parking space is detected is used as the judgment basis of the parking duration.
(2) The camera 1 collects parking space images f at fixed time intervals TiSending the data to the remote server, wherein i is the sampling frequency, and i =1, 1, 2;
the fixed time T can be set according to actual conditions, and the detection operation expense can be reduced by increasing the time length of the fixed time T, but the timing error is increased; conversely, shortening the duration of the fixed time T increases the detection overhead and reduces timing errors.
(3) When the vehicle enters the parking space, the remote server is used for displaying the parking space image fmIdentifying the license plate number P of the vehicle, and determining the license plate number P and the parking time tmAnd parking space image fmStoring;
the vehicle has a certain distance with the front parked vehicle in the process of driving into the parking space, and the installation mode of the camera 1 can acquire the parking space image f containing the license plate of the vehiclemAnd the remote server determines that the vehicle is parked in the parking space.
(4) When the vehicle stops in the parking space, the remote server stores the current time tkAnd parking space image fk；
When the vehicle is parked in the parking space, the vehicle obscures the triangular mark, and the remote server confirms that the vehicle is continuously parked, thus recording only the time and the image.
(5) When the vehicle drives out of the parking space, the remote server displays the parking space image fnAnd f0Matching is carried out in the pixel region S; after matching is successful, calculating parking fee q = (t)n-1-tm) R, wherein r is a charging standard, and then the associated account deduction of the license plate number P is carried out.
After the vehicle exits the parking space, other vehicles cannot enter the parking space within a short time, so that the camera 1 can shoot the triangular mark, and the remote server takes the triangular mark as a trigger condition for finishing parking and carries out charging and fee deduction.

Claims (5)

1. A roadside parking space unmanned management method based on image analysis and recording is applied to the unmanned parking charge management of side-entering parking spaces on two sides of a road, and is characterized in that: the parking space comprises a parking space, a front parking space boundary line, a rear parking space boundary line, an outer boundary line and an inner boundary line, wherein a triangular mark representing the parking direction is arranged at the periphery of the parking space, a camera is arranged in the parking space in the opposite direction of the center line of the included angle between the front parking space boundary line and the inner boundary line of the parking space, the camera is over against an access channel of the parking space, and the triangular mark is arranged on the optical axis of the camera; the camera is provided with a unique equipment number, the camera is provided with a wireless module, a remote server which can be connected with a wireless network to manage parking spaces can upload vehicle images containing license plate numbers and match corresponding parking spaces through the equipment number, the remote server is provided with a license plate recognition function and an unmanned management method, and the unmanned management method comprises the following steps:
(1) the camera collects parking space images f in the initialization stage0Identifying the triangular mark and marking a pixel area as S;
(2) the camera collects parking space images f at intervals of fixed time TiSending outGiving the remote server, wherein i is the sampling times, and i =1, 1, 2.;
(3) when the vehicle enters the parking space, the remote server is used for displaying the parking space image fmIdentifying the license plate number P of the vehicle, and determining the license plate number P and the parking time tmAnd parking space image fmStoring;
(4) when the vehicle stops in the parking space, the remote server stores the current time tkAnd parking space image fk；
(5) When the vehicle drives out of the parking space, the remote server displays the parking space image fnAnd f0Matching is carried out in the pixel region S; after matching is successful, calculating parking fee q = (t)n-1-tm) R, wherein r is a charging standard, and then the associated account deduction of the license plate number P is carried out.
2. The image analysis and recording based roadside parking space unmanned management method of claim 1, characterized in that: the camera has a light supplementing function and can shoot clear images under the condition of insufficient illumination.
3. The image analysis and recording based roadside parking space unmanned management method of claim 1, characterized in that: the height of the camera from the ground is set to be 1 m-1.5 m.
4. The image analysis and recording based roadside parking space unmanned management method of claim 1, characterized in that: the distance between the camera and the inner boundary line of the parking space is set to be 30-50 cm.
5. The image analysis and recording based roadside parking space unmanned management method of claim 1, characterized in that: the included angle between the optical axis of the camera and the ground is set to be 30-40 degrees.
CN202110267774.0A 2021-03-11 2021-03-11 Roadside parking space unmanned management method based on image analysis and recording Withdrawn CN112927558A (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114677772A (en) * 2022-03-17 2022-06-28 重庆江渝开物工业设计有限公司 ETC-based low-cost urban roadside temporary parking space management method

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101009049A (en) * 2006-01-26 2007-08-01 易卫东 Detecting system for vacancy of parking lots
CN106205190A (en) * 2016-03-18 2016-12-07 深圳市景阳信息技术有限公司 Use radar and the method and system of video camera management curb parking position
CN108257387A (en) * 2017-12-27 2018-07-06 深圳市道路交通管理事务中心 A kind of parking management method and system
CN109360444A (en) * 2018-12-08 2019-02-19 佛山市百宇行智能科技有限公司 A kind of method of video intelligent identification and management parking stall vehicle
CN110009928A (en) * 2019-03-01 2019-07-12 上海涛尔信息技术有限公司 A kind of smart city parking management method and system
CN110533920A (en) * 2019-08-05 2019-12-03 同济大学 It is a kind of to store up the parking video stake filled based on light
US20200094816A1 (en) * 2018-09-24 2020-03-26 Ford Global Technologies, Llc Vehicle system and method for setting variable virtual boundary

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101009049A (en) * 2006-01-26 2007-08-01 易卫东 Detecting system for vacancy of parking lots
CN106205190A (en) * 2016-03-18 2016-12-07 深圳市景阳信息技术有限公司 Use radar and the method and system of video camera management curb parking position
CN108257387A (en) * 2017-12-27 2018-07-06 深圳市道路交通管理事务中心 A kind of parking management method and system
US20200094816A1 (en) * 2018-09-24 2020-03-26 Ford Global Technologies, Llc Vehicle system and method for setting variable virtual boundary
CN109360444A (en) * 2018-12-08 2019-02-19 佛山市百宇行智能科技有限公司 A kind of method of video intelligent identification and management parking stall vehicle
CN110009928A (en) * 2019-03-01 2019-07-12 上海涛尔信息技术有限公司 A kind of smart city parking management method and system
CN110533920A (en) * 2019-08-05 2019-12-03 同济大学 It is a kind of to store up the parking video stake filled based on light

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114677772A (en) * 2022-03-17 2022-06-28 重庆江渝开物工业设计有限公司 ETC-based low-cost urban roadside temporary parking space management method

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Application publication date: 20210608