CN108961825B - Parking lot parking guiding method based on vehicle secondary identification - Google Patents
Parking lot parking guiding method based on vehicle secondary identification Download PDFInfo
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- CN108961825B CN108961825B CN201810903555.5A CN201810903555A CN108961825B CN 108961825 B CN108961825 B CN 108961825B CN 201810903555 A CN201810903555 A CN 201810903555A CN 108961825 B CN108961825 B CN 108961825B
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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
- G08G1/141—Traffic control systems for road vehicles indicating individual free spaces in parking areas with means giving the indication of available parking spaces
- G08G1/142—Traffic control systems for road vehicles indicating individual free spaces in parking areas with means giving the indication of available parking spaces external to the vehicles
Abstract
The invention relates to a parking lot parking guidance method based on vehicle secondary identification, which comprises the steps of obtaining a vehicle license plate picture when a vehicle enters a parking lot, identifying a vehicle license plate number, and judging whether the vehicle is a new vehicle or not according to the vehicle license plate number; if the vehicle is a new vehicle, recording vehicle information, setting the vehicle as a second type of vehicle, and recording the parking information of the vehicle; if the vehicle is not a new vehicle, calling the historical parking record of the vehicle, classifying the vehicle according to the inquired historical parking record, performing targeted parking diversion on drivers of different types, sending the optimal parking route to a display device for display, facilitating the vehicle driver to reach a target parking space according to the displayed optimal parking route, improving the parking efficiency and the parking space utilization rate of the parking lot, and reducing parking accidents at the same time.
Description
Technical Field
The invention relates to a parking lot parking guiding method based on vehicle secondary identification.
Background
The management of the current parking lot mostly aims at the functions of automatic identification of the license plate of an entering vehicle, management of vehicle entering permission, automatic charging, payment and the like; the parking lot is lack of the vehicle in the aspects of searching for vacant parking spaces in the parking lot, guiding the parking lines of the vehicle, solving the problems of difficulty in searching for the parking spaces, disorder parking of the vehicle, low parking efficiency and the like in the existing parking lot.
However, in the prior art, although there is also a parking lot in which an empty parking space is indicated by a display screen, the following problems occur because accurate guidance cannot be performed for a specific driver;
1) when the width of the parking space is narrow, the vehicle is easy to rub and collide during parking;
2) the parking efficiency is low due to the fact that the parking lot traffic jam caused by the fact that a driver parks the vehicle for too long time at the main road or the intersection;
3) the parking resource waste is caused by the fact that the parking is carried out across the parking space or the line pressing parking is carried out at the parking space close to the wall or close to the upright post.
Disclosure of Invention
The invention provides a parking guidance method in a parking lot, which aims at solving the technical problems in the prior art and can perform parking guidance according to the historical parking condition of a driver so as to improve the parking efficiency of each vehicle and reduce the friction accidents among the vehicles in the parking lot.
The technical scheme for solving the technical problems is as follows: the parking lot parking guiding method based on the vehicle secondary identification comprises the following steps:
s1, when the vehicle enters the parking lot, the image acquisition device is used for acquiring the license plate picture of the vehicle;
s2, using an image processing unit to perform image recognition on the license plate number of the vehicle according to the acquired license plate picture;
s3, the parking lot parking management terminal receives the identified license plate number, calls the historical parking record of the vehicle, and grades the vehicle according to the inquired historical parking record;
s4, matching the vacant parking spaces in the parking lot according to the vehicle classification condition, and determining an optimal parking route;
s5, the optimal parking route is sent to a display device to be displayed, so that a vehicle driver can conveniently arrive at a target parking space according to the displayed optimal parking route;
s6 feeds back parking information of the vehicle during the period from the entrance to the complete stop to the parking lot parking management terminal.
Further, in step S3, the historical parking record includes parking information of the vehicle after each entrance, and the vehicle is classified into a first type vehicle and a second type vehicle according to the parking information of the vehicle, where the first type vehicle includes:
-vehicles having a parking time less than a preset time; and
after the vehicle image is static for 1 minute, the vehicle outline does not block the vehicle of the stop line on any side;
the second type of vehicle includes other vehicles than the first type of vehicle. After the vehicles are classified according to historical parking information, vehicles with overlong parking time and poor parking technology can be distinguished, and targeted guidance is conducted.
In step S3, if the vehicle entered has no history of parking, the vehicle is directly classified as the second type vehicle as the first vehicle entered.
Further, in order to better match the parking spaces of various types in the parking lot according to the vehicle classification conditions, the guidance method further comprises the following steps:
s0, dividing a parking space in the parking lot into a first parking space and a second parking space according to the width of the parking space, the number of main roads connected with the parking space and the number of obstacles around the parking space;
the first parking space includes:
-parking spaces having a space width smaller than or equal to a preset space width;
-parking spaces with parking space entrances connected to the arterial road;
-parking spaces with parking space entrances connected to at least two branch roads;
-a parking space provided with at least one obstacle on at least one side of the parking space entrance;
the second parking space includes remaining parking spaces except the first parking space.
The parking space in the second parking space is easier for a driver to park and store relative to the parking space in the first parking space; and when the driver needs to spend more time parking, can effectively reduce the jam time to main road and main road intersection, improve the whole parking efficiency in parking area.
Further, the method for matching the vehicle with the vacant parking space in the parking lot in the step S5 includes:
if the vehicle is the first type of vehicle, directly searching the nearest vacant parking space in the parking space of the whole parking lot; if the vehicle is the second type of vehicle, the nearest vacant parking space is searched in the second parking space.
Preferably, if the entering vehicle is a second type vehicle, the nearest vacant parking space not adjacent to other second type vehicles is searched in the second parking space, so as to reduce the possibility of collision between vehicles during parking due to the technical reason of the driver.
Further, the specific image recognition method in step S2 is:
s21, preprocessing the image to obtain the position of the license plate in the image;
s22, on the basis of accurately positioning the license plate, dividing the acquired license plate image characters into single characters;
s23, converting the image information into character information by using a template matching method, and acquiring the vehicle license number.
Preferably, in step S21, the license plate position is obtained by using a method combining edge detection and gray level jump, and license plate coordinates obtained by edge detection are fused with license plate coordinates recorded by the gray level jump method, so as to ensure accurate license plate position positioning.
The invention has the beneficial effects that:
1) the parking space of the parking lot is classified, and according to the historical parking data of the vehicles in the parking lot, parking diversion is performed on drivers of different types in a targeted mode, so that the parking efficiency and the parking space utilization rate of the parking lot are improved, and meanwhile, parking accidents are reduced;
2) by adopting the license plate positioning method combining edge detection and gray level jump, the license plate positioning precision is further improved, and the positioning of false license plates is prevented.
Detailed Description
The principles and features of this invention are described below in conjunction with examples which are set forth to illustrate, but are not to be construed to limit the scope of the invention.
The parking lot parking guiding method based on the vehicle secondary identification comprises the following steps:
s1, when the vehicle enters the parking lot, the image acquisition device is used for acquiring the license plate picture of the vehicle; the image capture device may be a static capture device, such as a camera; the image acquisition device may also be a dynamic acquisition device, such as a camera.
S2, using an image processing unit to perform image recognition on the license plate number of the vehicle according to the acquired license plate picture;
s3, the parking lot parking management terminal receives the identified license plate number, calls the historical parking record of the vehicle, and grades the vehicle according to the inquired historical parking record;
s4, matching the vacant parking spaces in the parking lot according to the vehicle classification condition, and determining an optimal parking route;
s5, the optimal parking route is sent to a display device to be displayed, so that a vehicle driver can conveniently arrive at a target parking space according to the displayed optimal parking route;
s6 feeds back parking information of the vehicle during the period from the entrance to the complete stop to the parking lot parking management terminal.
Further, in step S3, the historical parking record includes parking information of the vehicle after each entrance, and the vehicle is classified into a first type vehicle and a second type vehicle according to the parking information of the vehicle, where the first type vehicle includes:
-vehicles having a parking time less than a preset time; and
after the vehicle image is static for 1 minute, the vehicle outline does not block the vehicle of the stop line on any side;
the second type of vehicle includes other vehicles than the first type of vehicle. After the vehicles are classified according to historical parking information, vehicles with overlong parking time and poor parking technology can be distinguished, and targeted guidance is conducted.
In step S3, if the vehicle entered has no history of parking, the vehicle is directly classified as the second type vehicle as the first vehicle entered.
Further, in order to better match the parking spaces of various types in the parking lot according to the vehicle classification conditions, the guidance method further comprises the following steps:
s0, dividing a parking space in the parking lot into a first parking space and a second parking space according to the width of the parking space, the number of main roads connected with the parking space and the number of obstacles around the parking space;
the first parking space includes:
-parking spaces having a space width smaller than or equal to a preset space width;
-parking spaces with parking space entrances connected to the arterial road;
-parking spaces with parking space entrances connected to at least two branch roads;
-a parking space provided with at least one obstacle on at least one side of the parking space entrance;
the second parking space includes remaining parking spaces except the first parking space.
The parking space in the second parking space is easier for a driver to park and store relative to the parking space in the first parking space; and when the driver needs to spend more time parking, can effectively reduce the jam time to main road and main road intersection, improve the whole parking efficiency in parking area.
Further, the method for matching the vehicle with the vacant parking space in the parking lot in the step S5 includes:
if the vehicle is the first type of vehicle, directly searching the nearest vacant parking space in the parking space of the whole parking lot; if the vehicle is the second type of vehicle, the nearest vacant parking space is searched in the second parking space.
Preferably, if the entering vehicle is a second type vehicle, the nearest vacant parking space not adjacent to other second type vehicles is searched in the second parking space, so as to reduce the possibility of collision between vehicles during parking due to the technical reason of the driver.
Further, the specific image recognition method in step S2 is:
s21, preprocessing the image to obtain the position of the license plate in the image;
s22, on the basis of accurately positioning the license plate, dividing the acquired license plate image characters into single characters;
s23, converting the image information into character information by using a template matching method, and acquiring the vehicle license number.
Preferably, in step S21, the license plate position is obtained by using a method combining edge detection and gray level jump, and license plate coordinates obtained by edge detection are fused with license plate coordinates recorded by the gray level jump method, so as to ensure accurate license plate position positioning.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.
Claims (4)
1. The parking lot parking guiding method based on the vehicle secondary identification is characterized by comprising the following steps of: s0, dividing a parking space in the parking lot into a first parking space and a second parking space according to the width of the parking space, the number of main roads connected with the parking space and the number of obstacles around the parking space; the first parking space includes:
-parking spaces having a space width smaller than or equal to a preset space width;
-parking spaces with parking space entrances connected to the arterial road;
-parking spaces with parking space entrances connected to at least two branch roads;
-a parking space provided with at least one obstacle on at least one side of the parking space entrance; the second parking space includes remaining parking spaces other than the first parking space;
s1, when the vehicle enters the parking lot, the image acquisition device is used for acquiring the license plate picture of the vehicle;
the S2 image processing unit identifies the license plate number of the vehicle according to the acquired license plate picture;
s3, the parking lot parking management terminal receives the identified license plate number, calls the historical parking record of the vehicle, and grades the vehicle according to the inquired historical parking record; the historical parking records comprise parking information of the vehicles after entering the parking lot every time, and the vehicles are classified into first-class vehicles and second-class vehicles according to the parking information of the vehicles, wherein the first-class vehicles comprise: -vehicles having a parking time less than a preset time; and-after the vehicle image is stationary for 1 minute, the vehicle profile does not block the vehicle of the stop line on any side; the second type of vehicle includes other vehicles than the first type of vehicle; if the vehicles entering the parking lot have no historical parking records, the vehicles are directly classified into a second type of vehicles as the vehicles entering the parking lot for the first time;
s4, matching the vacant parking spaces in the parking lot according to the vehicle classification condition, and determining an optimal parking route;
s5, the optimal parking route is sent to a display device to be displayed, so that a vehicle driver can conveniently arrive at a target parking space according to the displayed optimal parking route; if the vehicle is the first type of vehicle, directly searching the nearest vacant parking space in the parking space of the whole parking lot; if the vehicle is a second type of vehicle, firstly searching the nearest vacant parking space in a second parking space;
s6 feeds back parking information of the vehicle during the period from the entrance to the complete stop to the parking lot parking management terminal.
2. The parking guidance method for the parking lot based on the vehicle secondary identification as claimed in claim 1, wherein if the entering vehicle is a second type vehicle, the nearest vacant parking space not adjacent to other second type vehicles is firstly searched in the second parking space.
3. The parking guidance method based on the secondary vehicle identification for the parking lot as claimed in claim 1, wherein the specific image identification method in step S2 is: s21, preprocessing the image to obtain the position of the license plate in the image; s22, on the basis of accurately positioning the license plate, dividing the acquired license plate image characters into single characters; s23, converting the image information into character information by using a template matching method, and acquiring the vehicle license number.
4. The parking lot parking guidance method based on the vehicle secondary identification as claimed in claim 3, wherein in step S21, the license plate position is obtained by using a method combining edge detection and gray level jump, so as to ensure the license plate position to be accurately located.
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Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110047314A (en) * | 2019-03-22 | 2019-07-23 | 西安艾润物联网技术服务有限责任公司 | Parking space information modification method, apparatus and system |
| CN112652174B (en) * | 2020-12-18 | 2021-08-31 | 中标慧安信息技术股份有限公司 | Parking service control method and system based on face verification |
| CN112820137B (en) * | 2020-12-31 | 2022-04-19 | 金茂智慧科技(广州)有限公司 | Parking lot management method and device |
| CN113516851B (en) * | 2021-03-26 | 2023-04-18 | 湖南亿马智能科技有限公司 | Parking stall monitored control system based on big data |
| CN113611148B (en) * | 2021-07-11 | 2022-07-12 | 广州市道维信息科技有限公司 | Parking lot vehicle management method and system based on block chain |
| CN113611154B (en) * | 2021-08-13 | 2022-11-25 | 武汉虹信技术服务有限责任公司 | Parking space management method, device and system and computer readable storage medium |
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