CN117831177B

CN117831177B - Multi-license-plate barrier gate control method, device and equipment for parking lot and storage medium

Info

Publication number: CN117831177B
Application number: CN202311748571.9A
Authority: CN
Inventors: 肖勇善; 陈国彬; 罗胜文; 吴杜
Original assignee: Guangdong Ankuai Intelligent Science & Technology Co ltd
Current assignee: Guangdong Ankuai Intelligent Science & Technology Co ltd
Priority date: 2023-12-18
Filing date: 2023-12-18
Publication date: 2024-06-14
Anticipated expiration: 2043-12-18
Also published as: CN117831177A

Abstract

The application relates to the technical field of barrier gate control, in particular to a method for controlling a multi-license-plate barrier gate of a parking lot, which comprises the following steps: acquiring a queuing approaching vehicle image, judging the type of the queuing approaching vehicle license plate, and further judging a corresponding license plate recognition model; obtaining an approach vehicle image to be identified, and positioning the approach vehicle image to obtain a standard license plate position; positioning a standard license plate image in an approaching vehicle image to be identified and extracting a license plate number of the approaching vehicle from the standard license plate image; generating an entrance vehicle identity mark, and transmitting an entrance barrier control signal after verification; marking and tracking the approaching vehicle to obtain parking position information of the approaching vehicle, obtaining position information of the vehicle in the field, calculating to obtain a signal of the vehicle to be outbound, and further generating an identity mark of the vehicle to be outbound; the mark tracks the vehicles to be exported until reaching the export, verifies the identity of the vehicles to be exported, and sends an export gateway control signal after passing the identity. The application has the effect of improving the license plate number recognition efficiency of the multi-license plate vehicle.

Description

Multi-license-plate barrier gate control method, device and equipment for parking lot and storage medium

Technical Field

The application relates to the technical field of barrier gate control, in particular to a method, a device, equipment and a storage medium for controlling a multi-license-plate barrier gate of a parking lot.

Background

Currently, a road gate control method of a parking lot mainly judges whether to pass or not by identifying license plate numbers.

The existing parking lot barrier gate control method adopts a single-frame recognition mode or a video stream recognition mode to carry out license plate recognition, and records license plate numbers and one car and one card.

The prior art solutions described above have the following drawbacks:

License plate numbers cannot be recognized quickly in the face of multi-license plate vehicles.

In view of the above-mentioned related art, the inventors consider that there is a defect that the license plate number recognition efficiency of a multi-license plate vehicle is low.

Disclosure of Invention

The application provides a control method of a multi-license-plate barrier gate of a parking lot in order to improve the recognition efficiency of license plate numbers of multi-license-plate vehicles.

The first object of the present application is achieved by the following technical solutions:

the method for controlling the multi-license-plate barrier gate of the parking lot comprises the following steps:

Acquiring a queuing entering vehicle image, judging the type of a queuing entering vehicle license plate according to the queuing entering vehicle image, and judging a corresponding license plate recognition model according to the type of the queuing entering vehicle license plate;

acquiring an approaching vehicle image to be identified, and carrying out standard license plate positioning on the approaching vehicle image to be identified by using the corresponding license plate identification model to obtain a standard license plate position;

Extracting a standard license plate image from the to-be-identified approaching vehicle image according to the standard license plate position, and identifying to obtain a to-be-approaching vehicle license plate number;

generating an entering vehicle identity according to the number of the license plate of the vehicle to be entered, and transmitting an entrance gateway control signal after verifying the entering vehicle identity;

Performing entrance vehicle mark tracking on the entrance vehicle, and acquiring parking position information of the entrance vehicle according to the entrance vehicle mark tracking;

acquiring in-field vehicle position information, calculating to acquire a vehicle to-be-ex-place signal according to the in-field vehicle position information and the in-field vehicle parking position information, matching an in-field vehicle identity corresponding to the to-be-ex-place vehicle according to the vehicle to-be-ex-place signal, and generating an out-of-field vehicle identity;

the mark tracks the vehicles to be exported, when the vehicles to be exported arrive at the export, the identity of the vehicles to be exported is verified, and after the verification is passed, an export gateway control signal is sent.

By adopting the technical scheme, when one license plate is identified, the output condition is satisfied, and the other license plates are not identified, so that the license plate identification efficiency is low due to the fact that a strategy of waiting for a section of frame number is needed to be adopted, and therefore, the license plate identification efficiency of the multi-license plate vehicle of the entrance barrier is improved by selecting different license plate identification models according to different entrance vehicle license plate types; meanwhile, the vehicle source information is judged in advance according to the vehicle driving position information when the vehicle is queued, so that the time for waiting for identifying the opening of the brake after the vehicle arrives at the entrance is shortened, and the user experience is improved; meanwhile, the method detects that the vehicles in the field arrive at the exit by means of marking and tracking, and directly performs identity verification, so that the gateway is controlled to be opened and closed, license plate recognition is not required to be performed again on the exit gateway, system overhead is saved, waiting time of a user is reduced, and user experience is further improved.

The present application may be further configured in a preferred example to:

The method comprises the steps of obtaining a queuing approaching vehicle image, judging the type of a queuing approaching vehicle license plate according to the queuing approaching vehicle image, and judging a corresponding license plate recognition model according to the type of the queuing approaching vehicle license plate, and specifically comprises the following steps:

Obtaining a barrier gate shooting image, positioning continuous M queuing entrance vehicle images from the barrier gate shooting image, and setting an entrance vehicle temporary mark for each queuing entrance vehicle image according to a vehicle driving route;

Identifying and obtaining driving position information from each queuing entrance vehicle image, analyzing and obtaining queuing entrance vehicle source information according to the driving position information, and judging the type of the license plate of the queuing entrance vehicle according to the queuing entrance vehicle source information;

when the number of the temporary marks of the approach vehicles in the barrier gate shooting image is smaller than N, the queuing approach vehicle image is acquired again, and the temporary marks of the approach vehicles are reset, wherein M and N are positive integers, and M is larger than N;

And judging a corresponding license plate recognition model according to the type of the license plate of the queuing approaching vehicle and binding the temporary mark of the approaching vehicle.

By adopting the technical scheme, the driving position is identified through the queuing incoming vehicle image so as to judge the type of the license plate of the incoming vehicle, the corresponding license plate identification model is selected, and the temporary label of the incoming vehicle is bound, so that the time for waiting for the barrier gate control system to carry out license plate identification after the incoming vehicle arrives at the entrance is reduced, and the license plate identification efficiency is improved.

The present application may be further configured in a preferred example to:

The obtaining of the image of the approaching vehicle to be identified, the standard license plate positioning of the image of the approaching vehicle to be identified by using the corresponding license plate identification model, and the obtaining of the standard license plate position specifically comprises the following steps:

Matching the temporary mark of the approaching vehicle from the image of the approaching vehicle to be identified, and judging the corresponding license plate recognition model bound by the temporary mark of the approaching vehicle, wherein the license plate recognition model comprises a first recognition model and a second recognition model;

when the license plate recognition model is a first recognition model, a pre-stored conventional vehicle license plate image is obtained, the conventional vehicle license plate image and the approaching vehicle image to be recognized are compared, and the standard license plate position is located;

when the license plate recognition model is a second recognition model, pre-stored parking lot location information is obtained, an irregular vehicle license plate image is obtained according to the parking lot location information, the irregular vehicle license plate image and the to-be-recognized approach vehicle image are compared, and the standard license plate position is located.

By adopting the technical scheme, the to-be-identified incoming vehicle images of different vehicle license plate types are identified through different license plate identification models, and the to-be-identified incoming vehicle images are positioned at standard license plate positions in the images, so that the accuracy of multi-license plate vehicle license plate identification is improved; meanwhile, the license plate recognition model directly selects the pre-stored vehicle license plate image to perform contrast recognition on the incoming vehicle image to be recognized, can directly locate the standard license plate position, reduces the time for multiple license plate recognition of the multi-license plate vehicle, and further improves the license plate recognition efficiency.

The present application may be further configured in a preferred example to:

generating an approach vehicle identity according to the number of the license plate of the vehicle to be approach, and generating a barrier control signal after verifying the approach vehicle identity, wherein the method specifically comprises the following steps:

generating an entrance vehicle identity mark according to the entrance vehicle license plate number;

Comparing and verifying the identity of the approaching vehicle with pre-stored information to obtain verification information;

And generating an entrance barrier control signal according to the verification information so as to control the entrance barrier to be opened and closed.

By adopting the technical scheme, the verification information is obtained by generating the incoming vehicle identity mark and comparing the pre-stored information, so that the entrance barrier control signal is generated, and the barrier is further controlled to be opened and closed, the error rate and the miss rate of license plate recognition of the multi-license plate vehicle are reduced, and the accuracy of license plate recognition is improved.

The present application may be further configured in a preferred example to:

The step of carrying out the entry vehicle mark tracking on the entry vehicle, and obtaining the parking position information of the entry vehicle according to the entry vehicle mark tracking specifically comprises the following steps:

Acquiring a parking lot monitoring image, and tracking an approaching vehicle according to the parking lot monitoring image mark to acquire the driving route information of the approaching vehicle;

And acquiring a vehicle warehousing signal, and calculating to obtain parking position information of the approaching vehicle according to the vehicle warehousing signal and the approaching vehicle driving route information.

By adopting the technical scheme, the incoming vehicles are tracked through the marks, the driving route information of the incoming vehicles is obtained, the vehicle warehousing signals are obtained, the parking position information of the incoming vehicles is comprehensively calculated, the subsequent treatment of the outgoing vehicles is facilitated, and the identity verification efficiency of the exit barrier gate of the parking lot is improved.

The present application may be further configured in a preferred example to:

The method comprises the steps of obtaining in-field vehicle position information, calculating to obtain a vehicle to-be-ex-place signal according to the in-field vehicle position information and the in-field vehicle parking position information, matching an in-field vehicle identity corresponding to the to-be-ex-place vehicle according to the vehicle to-be-ex-place signal, and generating the to-be-ex-place vehicle identity, and specifically comprises the following steps:

acquiring a parking lot monitoring image, and acquiring vehicle position information in a field according to the parking lot monitoring image;

Calculating the position difference of the vehicle position information in the field and the parking position information of the entering vehicle according to the vehicle position information in the field, and generating a vehicle to-be-discharged signal when the position difference is larger than a preset value;

and matching the entrance vehicle identity mark corresponding to the vehicle to be outbound according to the vehicle to be outbound signal, and generating the vehicle identity mark to be outbound.

Through adopting above-mentioned technical scheme, through the positional information of vehicle in the location place, carry out difference calculation with entering vehicle parking position information in order to produce the vehicle when the vehicle leaves the parking position and wait for the signal of leaving the scene, and then match the entering vehicle identification that this vehicle corresponds to produce and wait for the vehicle identification of leaving the scene, further improved the identity verification efficiency of exit road gate.

The present application may be further configured in a preferred example to:

The mark tracks the vehicle to be exported, when the vehicle to be exported arrives at the export, the identity of the vehicle to be exported is verified, and after the verification is passed, an export gateway control signal is sent, and the method specifically comprises the following steps:

Acquiring a parking lot monitoring image, tracking a vehicle to be discharged according to the parking lot monitoring image mark, and acquiring position information of the vehicle to be discharged;

and calculating the position difference of the position information of the vehicle to be exported and the position information of the exit barrier, and when the position difference is smaller than a preset value, namely when the vehicle to be exported arrives at the exit, verifying the identity of the vehicle to be exported, and generating an exit barrier control signal after verification is passed so as to control the opening and closing of the exit barrier.

By adopting the technical scheme, the parking lot monitoring image mark is used for tracking the vehicle to be discharged to acquire the position information of the vehicle to be discharged, and the position information of the exit road gate is compared to judge whether the vehicle to be discharged reaches the exit position, so that license plate recognition links of the exit road gate are reduced, and the identity verification efficiency of the exit road gate is further improved; meanwhile, when the vehicle to be exported arrives at the export, the identity of the vehicle to be exported is verified, so that the risk of misidentification and missing identification of the barrier gate control system is reduced.

The second object of the present application is achieved by the following technical solutions:

a parking lot multi-license plate barrier control device, the parking lot multi-license plate barrier control device comprising:

The license plate recognition model judging module is used for acquiring a queuing incoming vehicle image, judging the type of the queuing incoming vehicle license plate according to the queuing incoming vehicle image, and judging a corresponding license plate recognition model according to the type of the queuing incoming vehicle license plate;

the standard license plate position acquisition module is used for acquiring an approaching vehicle image to be identified, and carrying out standard license plate positioning on the approaching vehicle image to be identified by using the corresponding license plate identification model to obtain a standard license plate position;

the vehicle license plate number acquisition module is used for extracting a standard license plate image from the vehicle image to be identified according to the standard license plate position and identifying the standard license plate image to obtain the vehicle license plate number to be accessed;

the entrance barrier control signal generation module is used for generating an entrance vehicle identity according to the number of the license plate of the vehicle to be entered, and transmitting an entrance barrier control signal after verifying the entrance vehicle identity;

the entrance vehicle parking position information acquisition module is used for carrying out entrance vehicle mark tracking on the entrance vehicle and acquiring entrance vehicle parking position information according to the entrance vehicle mark tracking;

The system comprises a vehicle identification generating module for waiting for departure, a vehicle identification generating module for generating a vehicle identification for waiting for departure, wherein the vehicle identification generating module is used for acquiring position information of vehicles in a field, calculating and acquiring a signal for waiting for departure of the vehicles according to the position information of the vehicles in the field and the parking position information of the vehicles in the field, and matching the vehicle identification for entering the vehicles corresponding to the vehicles for waiting for departure according to the signal for waiting for departure;

The exit gateway control signal generation module is used for marking and tracking the vehicles to be exported, verifying the identity of the vehicles to be exported when the vehicles to be exported arrive at the exit, and sending the exit gateway control signal after the verification is passed.

By adopting the technical scheme, the license plate type is judged by acquiring the image of the queuing entrance vehicle, the corresponding license plate recognition model is further selected, after the queuing entrance vehicle reaches the entrance position, the standard license plate positioning is carried out by using the corresponding license plate recognition model, the license plate number of the vehicle to be entered is recognized, the entrance vehicle identity is generated, the identity is verified, the entrance barrier control signal is sent, the entrance vehicle is marked and tracked to obtain the parking position information, the signal to be exited is calculated, the corresponding entrance vehicle identity is matched, the identity of the vehicle to be exited is generated, after the vehicle to be exited reaches the exit position, the identity of the vehicle to be exited is verified, the exit barrier control signal is generated after the verification passes, the working efficiency of the parking lot barrier control system is improved, the parking waiting time of a user is reduced, and the user experience is improved.

The third object of the present application is achieved by the following technical solutions:

A computer device comprising a memory, a processor and a computer program stored in the memory and executable on the processor, the processor implementing the steps of the above-described parking lot multi-license plate barrier control method when the computer program is executed.

The fourth object of the present application is achieved by the following technical solutions:

A computer readable storage medium storing a computer program which when executed by a processor performs the steps of the above-described parking lot multi-license plate barrier control method.

In summary, the present application includes at least one of the following beneficial technical effects:

1. The license plate recognition efficiency of the multi-license plate vehicle of the entrance barrier is improved by selecting different license plate recognition models according to different entering vehicle license plate types;

2. when the vehicle is in line, the vehicle source information is judged in advance according to the vehicle driving position information, so that the time for waiting for identifying brake opening after the vehicle arrives at the entrance is shortened, and the user experience is improved;

3. by means of marking and tracking vehicles in the field, the vehicles in the field are detected to reach the exit, identity verification is directly carried out, and then the opening and closing of the barrier gate are controlled, so that the exit barrier gate does not need to carry out license plate recognition again, and system overhead is saved.

Drawings

FIG. 1 is a flow chart of a method for controlling a parking lot multi-license-plate barrier according to an embodiment of the application.

Fig. 2 is a flowchart illustrating an implementation of step S10 in a method for controlling a parking lot multi-license barrier according to an embodiment of the application.

Fig. 3 is a flowchart illustrating an implementation of step S20 in a method for controlling a parking lot multi-license barrier according to an embodiment of the application.

Fig. 4 is a flowchart illustrating an implementation of step S30 in a method for controlling a parking lot multi-license barrier according to an embodiment of the application.

Fig. 5 is a flowchart illustrating an implementation of step S40 in a method for controlling a parking lot multi-license barrier according to an embodiment of the application.

Fig. 6 is a flowchart illustrating an implementation of step S50 in a method for controlling a parking lot multi-license barrier according to an embodiment of the application.

Fig. 7 is a flowchart illustrating an implementation of step S60 in a method for controlling a parking lot multi-license barrier according to an embodiment of the application.

Fig. 8 is a schematic block diagram of a parking lot multi-license gate control device according to an embodiment of the application.

Fig. 9 is a schematic diagram of an apparatus in an embodiment of the application.

Detailed Description

The present application will be described in further detail with reference to the accompanying drawings.

In an embodiment, as shown in fig. 1, the application discloses a method for controlling a multi-license-plate barrier gate of a parking lot, which specifically comprises the following steps:

s10: the method comprises the steps of obtaining a queuing approaching vehicle image, judging the type of a queuing approaching vehicle license plate according to the queuing approaching vehicle image, and judging a corresponding license plate recognition model according to the type of the queuing approaching vehicle license plate.

In the present embodiment, the in-line approach vehicle image refers to a monitoring image of a vehicle that is in line before the entrance of the parking lot. The in-line approaching vehicle license plate type refers to the type of license plate that the vehicles in line suspended before the entrance of the parking lot. The license plate recognition model is a model for recognizing a specific license plate number.

Specifically, a gateway shooting image is obtained through a camera at the entrance of a parking lot, a plurality of continuous M queuing entrance vehicle images are positioned, a temporary mark of an entrance vehicle is set for each queuing entrance vehicle image according to a vehicle driving route, driving position information is obtained by identification from each queuing entrance vehicle image, thus queuing entrance vehicle source information is obtained, and the queuing entrance vehicle license plate type is obtained by analysis. And when the number of the queuing residual vehicles is less than N, re-acquiring the queuing incoming vehicle image and resetting the temporary mark of the incoming vehicle, judging the corresponding license plate recognition model according to the license plate type of the queuing incoming vehicle, and binding the temporary mark of the incoming vehicle.

S20: and obtaining an approaching vehicle image to be identified, and carrying out standard license plate positioning on the approaching vehicle image to be identified by using the corresponding license plate identification model to obtain a standard license plate position.

In this embodiment, the approaching vehicle image to be identified refers to a vehicle image waiting for license plate identification and barrier opening in front of the entrance barrier. The standard license plate refers to a license plate which accords with the characteristics of a conventional license plate in an M region in the license plates of vehicles. The standard license plate position refers to the specific position of the standard license plate in the image of the approaching vehicle to be identified.

Specifically, the entrance barrier camera acquires an incoming vehicle image to be identified, a temporary mark of an incoming vehicle marked in queuing is matched with the temporary mark, a bound corresponding license plate identification model is judged, when the vehicle image is a first identification model, a pre-stored conventional vehicle license plate image is acquired, the conventional vehicle license plate image is compared with the incoming vehicle image to be identified, the vehicle image is positioned at a standard license plate position, when the license plate identification model is a second identification model, pre-stored parking lot location information is acquired, an unconventional vehicle license plate image is acquired, the unconventional vehicle license plate image is compared with the incoming vehicle image to be identified, and the standard license plate position is positioned.

S30: and extracting a standard license plate image from the to-be-identified approaching vehicle image according to the standard license plate position, and identifying to obtain the to-be-approaching vehicle license plate number.

In this embodiment, the number of the vehicle waiting for entering refers to the number of the vehicle waiting for license plate recognition in front of the entrance barrier.

Specifically, when the vehicle reaches the front of the entrance barrier gate, license plate recognition is performed according to the standard license plate position positioned when the vehicle is queued, so as to obtain the license plate number of the vehicle.

S40: generating an entrance vehicle identity according to the number of the license plate of the vehicle to be entered, and transmitting an entrance gate control signal after verifying the entrance vehicle identity.

In this embodiment, the approach vehicle identity refers to a signal identity used for vehicle identity information verification. The entrance barrier control signal is a signal for controlling the entrance barrier to be opened or closed.

Specifically, an entrance vehicle identity is generated according to an entrance vehicle license plate number, and comparison verification is carried out on the entrance vehicle identity and pre-stored information to obtain verification information, so that an entrance gate control signal is generated.

S50: and (3) carrying out entrance vehicle mark tracking on the entrance vehicle, and acquiring parking position information of the entrance vehicle according to the entrance vehicle mark tracking.

In the present embodiment, the approach vehicle mark tracking refers to marking an approach vehicle image in a monitor image and tracking a moving track of the approach vehicle. The parking position information of the approaching vehicle refers to the position information of a parking space in which the approaching vehicle is stably parked.

Specifically, the approaching vehicle is marked and tracked in real time in the parking lot monitoring image so as to acquire the driving route information of the approaching vehicle, a vehicle warehousing signal is acquired according to the sensing signal of the parking space, and the parking position information of the approaching vehicle is obtained according to the vehicle warehousing signal and the driving route information matching calculation of the approaching vehicle.

S60: and acquiring in-field vehicle position information, calculating and acquiring a vehicle to-be-ex-place signal according to the in-field vehicle position information and the in-field vehicle parking position information, matching an in-field vehicle identity corresponding to the to-be-ex-place vehicle according to the vehicle to-be-ex-place signal, and generating an in-field vehicle identity.

In the present embodiment, the in-field vehicle position information refers to real-time position information of all vehicles in the parking lot. Obtaining a signal that a vehicle is to be out of the yard refers to the signal that the vehicle makes a warehouse-out action and prepares to be out of the yard. The identification mark of the vehicle to be out refers to a signal mark for verifying the information of the vehicle out of the field.

Specifically, the parking lot monitoring image acquires in-field vehicle position information in real time, when in-field vehicle position information changes, position difference between in-field vehicle position information and in-field vehicle parking position information is calculated, when the position difference is larger than a preset value, namely, when a vehicle leaves a parking space, a vehicle to-be-discharged signal is generated, and an in-field vehicle identity identifier corresponding to the to-be-discharged vehicle is matched according to the vehicle to-be-discharged signal, so that the to-be-discharged vehicle identity identifier is generated.

S70: the mark tracks the vehicles to be exported, when the vehicles to be exported arrive at the export, the identity of the vehicles to be exported is verified, and after the verification is passed, an export gateway control signal is sent.

In this embodiment, the exit gate control signal refers to a signal for controlling the exit gate to open or close.

Specifically, the parking lot monitoring image real-time mark tracks the vehicle to be discharged so as to acquire the position information of the vehicle to be discharged, calculates the position difference between the position information of the vehicle to be discharged and the position information of the exit barrier, and verifies the identity of the vehicle to be discharged when the position difference is smaller than a preset value, namely the vehicle to be discharged reaches the exit, and generates an exit barrier control signal after verification is passed.

In an embodiment, as shown in fig. 2, after step S10, the method for controlling the multi-license-plate barrier of the parking lot further includes:

S11: and obtaining a barrier gate shooting image, positioning continuous M queuing approaching vehicle images from the barrier gate shooting image, and setting a temporary mark of an approaching vehicle for each queuing approaching vehicle image according to a vehicle driving route.

In the present embodiment, the barrier photographed image refers to an image of a vehicle queued before the entrance of the parking lot photographed by the parking lot entrance barrier.

Specifically, the camera of the entrance gateway captures images of vehicles queued before the entrance of the parking lot in real time, locates consecutive M queued entrance vehicle images, such as the first five queued vehicle images when the M value is 5, sets E of entrance vehicle temporary marks A, B, C, D for them according to the driving route, and the like.

S12: and identifying and obtaining the position information of the driving position from each queuing entrance vehicle image, analyzing and obtaining the source information of the queuing entrance vehicles according to the position information of the driving position, and judging the license plate type of the queuing entrance vehicles according to the source information of the queuing entrance vehicles.

Specifically, the features of the image of the steering wheel are identified and compared from the image of the queuing vehicle so as to obtain the driving position information of the vehicle, such as: in the front view shot image, the driving position is on the left side of the image, the source of the queuing entering vehicle is G region, the license plate type is yz license plate plus G region license plate, the driving position is on the right side of the image, the source of the queuing entering vehicle is M region, the license plate type is only M region license plate or M license plate plus a license plate, and if the image shooting direction is the same as the visual field direction of the cab, the practical situation is opposite to the above example.

S13: and when the number of the temporary marks of the approaching vehicles in the photographed images of the barrier gate is smaller than N, re-acquiring the images of the queuing approaching vehicles and resetting the temporary marks of the approaching vehicles, wherein M and N are positive integers, and M is greater than N.

Specifically, when the number of the temporary marks of the approaching vehicle in the photographed image of the barrier is smaller than N, for example, when the N value is 3, that is, when the number of the queuing vehicles is less than three, the image of the queuing approaching vehicle is newly acquired and the temporary marks of the approaching vehicle are newly set.

S14: and judging the corresponding license plate recognition model according to the type of the license plate of the queuing approaching vehicle and binding the temporary label.

Specifically, according to different license plate types of the vehicles in the queue, different corresponding license plate recognition models are selected and bound with temporary marks of the corresponding vehicles, such as a vehicle binding second recognition model, a vehicle binding second recognition model and a vehicle binding first recognition model.

In one embodiment, as shown in fig. 3, after step S20, the method for controlling the multi-license-plate barrier of the parking lot further includes:

s21: and matching the temporary vehicle mark from the to-be-identified incoming vehicle image, and judging a corresponding license plate recognition model bound by the temporary vehicle mark, wherein the license plate recognition model comprises a first recognition model and a second recognition model.

Specifically, when the vehicle arrives at the entrance barrier, the image of the vehicle to be identified is obtained from the photographed image of the entrance barrier and is matched with the corresponding temporary label of the vehicle, and the license plate identification model bound with the temporary label is obtained, for example, the vehicle to be identified A corresponds to the second identification model, the vehicle to be identified B corresponds to the second identification model, and the vehicle to be identified C corresponds to the first identification model.

S22: when the license plate recognition model is a first recognition model, a prestored conventional vehicle license plate image is acquired, the conventional vehicle license plate image and the incoming vehicle image to be recognized are compared, and the standard license plate position is positioned.

Specifically, if the license plate recognition model of the vehicle to be entered is judged to be a first recognition model, comparing the pre-stored regular vehicle license plate image with the vehicle image to be recognized, finding a position conforming to the characteristic of the regular vehicle license plate image, namely a standard license plate position, if the vehicle C to be recognized corresponds to the first recognition model, obtaining a pre-stored M area license plate image, finding similar characteristic information in the license plate image of the vehicle C according to the characteristic information of the M area license plate image, and positioning the standard license plate position of the vehicle C.

S23: when the license plate recognition model is a second recognition model, pre-stored parking lot location information is obtained, an irregular vehicle license plate image is obtained according to the parking lot location information, the irregular vehicle license plate image is compared with an approaching vehicle image to be recognized, and the standard license plate position is located.

Specifically, if the license plate recognition model of the vehicle to be entered is judged to be the second recognition model, comparing the pre-stored non-conventional vehicle license plate image with the vehicle image to be recognized, finding a position conforming to the features of the non-conventional vehicle license plate image, namely a standard license plate position, if the vehicle A corresponds to the second recognition model, acquiring pre-stored parking lot location information, if the parking lot location is H province, acquiring an H province license plate image, finding similar feature information in the license plate image of the vehicle A according to the feature information of the H province license plate image, and positioning the standard license plate position of the vehicle A.

In an embodiment, as shown in fig. 4, after step S40, the method for controlling the multi-license-plate barrier of the parking lot further includes:

S41: and generating an entrance vehicle identity mark according to the entrance vehicle license plate number.

Specifically, the entering vehicle identity mark is generated according to the entering vehicle license plate number and the specific entering time, and comprises an entering vehicle code number, a license plate number, the entering time and operation information, wherein if the entering vehicle is an A vehicle, the license plate number is HT12345, and the entering vehicle identity mark is 'A vehicle-HT 12345-2023-11-20-18:00 entering'.

S42: and comparing and verifying the identity of the approaching vehicle with the pre-stored information to obtain verification information.

In this embodiment, the pre-stored information includes reservation time information, reservation vehicle license plate number, prepayment information, and the like.

Specifically, the identity of the approaching vehicle is compared with the pre-stored reservation time, reservation vehicle license plate number, prepayment information and the like, verification information is obtained, if the number of the approaching vehicle is successfully compared with the number of the reservation vehicle license plate, the approaching vehicle approaching time accords with the reservation time information, and the verification information is admission of the vehicle.

S43: and generating an entrance barrier control signal according to the verification information so as to control the entrance barrier to be opened and closed.

Specifically, different entrance barrier control signals are generated according to different verification information so as to control the entrance barrier to be opened or closed, the entrance barrier is controlled to be opened when the verification information is that the vehicle is allowed to enter, and the entrance barrier is controlled to be closed when the verification information is that the vehicle is not allowed to enter.

In one embodiment, as shown in fig. 5, after step S50, the method for controlling the multi-license-plate barrier of the parking lot further includes:

S51: and acquiring a parking lot monitoring image, tracking the approaching vehicle according to the parking lot monitoring image mark, and acquiring the driving route information of the approaching vehicle.

The approach vehicle driving route information comprises preset intersection mark information and information of parking spaces on two sides of the route.

Specifically, a parking lot monitoring image is acquired from a parking lot monitoring system, an approaching vehicle is marked and tracked in the parking lot monitoring image, and driving route information of the approaching vehicle is acquired, for example, a vehicle is turned to enter a second row of parking spaces at an intersection A.

S52: and acquiring a vehicle warehousing signal, and calculating to obtain parking position information of the approaching vehicle according to the vehicle warehousing signal and the approaching vehicle driving route information.

Specifically, when a parking space senses that a vehicle enters, a vehicle entering signal with a parking space mark is generated, and parking position information of an approaching vehicle is obtained through comprehensive calculation according to the vehicle entering signal and the information of a traveling route of the approaching vehicle.

In one embodiment, as shown in fig. 6, after step S60, the method for controlling the multi-license-plate barrier of the parking lot further includes:

s61: and acquiring a parking lot monitoring image, and acquiring the position information of the vehicle in the parking lot according to the parking lot monitoring image.

Specifically, the position of the vehicle in the field is located in real time in the parking lot camera image, and the in-field vehicle position information is generated until the position of the vehicle changes therein.

S62: and calculating the position difference of the vehicle position information in the field and the parking position information of the approaching vehicle according to the vehicle position information in the field, and generating a signal for the vehicle to leave when the position difference is larger than a preset value.

Specifically, when the position information of the on-site vehicle, namely the position difference between the real-time position coordinates of the on-site vehicle and the corresponding parking position information of the entering vehicle is larger than 5m, the vehicle is judged to leave the garage, the vehicle is ready to leave the parking lot, and a vehicle waiting-for-leaving signal is generated.

S63: and matching the incoming vehicle identity identifier corresponding to the vehicle to be outbound according to the vehicle to be outbound signal, and generating the vehicle identity identifier to be outbound.

Specifically, according to the parking position information of the entering vehicle carried in the vehicle exiting signal, the entering vehicle identification mark corresponding to the exiting vehicle is matched, and the exiting vehicle identification mark is generated, such as 'A vehicle-HT 12345-2023-11-20-18:30-parking space 45-ready to leave'.

In one embodiment, as shown in fig. 7, after step S70, the method for controlling the multi-license-plate barrier of the parking lot further includes:

S71: and acquiring a parking lot monitoring image, tracking the vehicle to be discharged according to the parking lot monitoring image mark, and acquiring the position information of the vehicle to be discharged.

Specifically, real-time mark tracking is carried out on the images of the vehicles to be discharged in the camera images of the parking lot, and the position information of the vehicles to be discharged is obtained.

S72: and calculating the position difference of the position information of the vehicle to be exported and the position information of the exit barrier, and when the position difference is smaller than a preset value, namely when the vehicle to be exported arrives at the exit, verifying the identity of the vehicle to be exported, and generating an exit barrier control signal after verification is passed so as to control the opening and closing of the exit barrier.

Specifically, position difference calculation is carried out on position information of the vehicles to be discharged and position information of the exit barrier, if the position difference is smaller than 5m, the vehicles to be discharged are judged to arrive at the exit, identification of the vehicles to be discharged is verified, an exit barrier control signal is generated after verification, the exit barrier is controlled to be opened if a vehicle departure permission signal is generated, and the exit barrier is controlled to be closed if a vehicle departure non-permission signal is generated.

It should be understood that the sequence number of each step in the foregoing embodiment does not mean that the execution sequence of each process should be determined by the function and the internal logic, and should not limit the implementation process of the embodiment of the present application.

In an embodiment, a parking lot multi-license-plate barrier control device is provided, and the parking lot multi-license-plate barrier control device corresponds to the parking lot multi-license-plate barrier control method in the above embodiment one by one. As shown in fig. 8, the multi-license-plate barrier control device for the parking lot comprises a license plate recognition model judging module, a standard license plate position obtaining module, a license plate number obtaining module for vehicles to be entered, an entrance barrier control signal generating module, a parking position information obtaining module for vehicles to be entered, an identification generating module for vehicles to be exited and an exit barrier control signal generating module. The functional modules are described in detail as follows:

The license plate recognition model judgment module is used for acquiring a queuing incoming vehicle image, judging the type of the queuing incoming vehicle license plate according to the queuing incoming vehicle image, and judging a corresponding license plate recognition model according to the type of the queuing incoming vehicle license plate;

The standard license plate position acquisition module is used for acquiring an approaching vehicle image to be identified, and carrying out standard license plate positioning on the approaching vehicle image to be identified by using the corresponding license plate identification model to acquire a standard license plate position;

the system comprises a vehicle license plate number acquisition module for entering a vehicle, a license plate recognition module and a license plate recognition module, wherein the vehicle license plate number acquisition module is used for extracting a standard license plate image from an entering vehicle image to be recognized according to the standard license plate position and recognizing the standard license plate image to obtain the vehicle license plate number for entering the vehicle;

The entrance barrier control signal generation module is used for generating an entrance vehicle identity according to the license plate number of the vehicle to be entered, and transmitting an entrance barrier control signal after verifying the entrance vehicle identity;

The entrance vehicle parking position information acquisition module is used for carrying out entrance vehicle mark tracking on the entrance vehicle and acquiring the entrance vehicle parking position information according to the entrance vehicle mark tracking;

The identification generating module of the vehicle to be discharged is used for acquiring the position information of the vehicle in the field, calculating and acquiring the signal of the vehicle to be discharged according to the position information of the vehicle in the field and the parking position information of the vehicle entering the field, matching the incoming vehicle identity identifier corresponding to the vehicle to be outbound according to the vehicle to be outbound signal, and generating the vehicle identity identifier to be outbound;

Optionally, the license plate recognition model judging module includes:

The entrance mark module is used for acquiring a barrier gate shooting image, positioning continuous M queuing entrance vehicle images from the barrier gate shooting image, and setting an entrance vehicle temporary mark for each queuing entrance vehicle image according to a vehicle driving route;

The license plate type analysis module is used for identifying and obtaining the position information of the driving position from each queuing approaching vehicle image, analyzing and obtaining the source information of the queuing approaching vehicles according to the position information of the driving position, and judging the license plate type of the queuing approaching vehicles according to the source information of the queuing approaching vehicles;

The queuing vehicle pre-acquisition module is used for re-acquiring the queuing approaching vehicle image and resetting the approaching vehicle temporary marks when the number of the approaching vehicle temporary marks in the barrier shooting image is smaller than N, wherein M and N are positive integers, and M is larger than N;

and the recognition model binding module judges a corresponding license plate recognition model according to the license plate type of the queuing approaching vehicle and binds the temporary label of the approaching vehicle.

Optionally, the access gateway control signal generation module includes:

the entrance vehicle identity generation module generates an entrance vehicle identity according to the entrance vehicle license plate number;

the approach verification information generation module is used for comparing and verifying the identity mark of the approach vehicle with the pre-stored information to obtain verification information;

and the entrance signal generation module is used for generating an entrance barrier control signal according to the verification information so as to control the entrance barrier to be opened and closed.

Optionally, the approach vehicle parking position information module includes:

The vehicle driving route acquisition module acquires a parking lot monitoring image, tracks an approaching vehicle according to the parking lot monitoring image mark and acquires the driving route information of the approaching vehicle;

The parking position information calculation module is used for obtaining a vehicle warehousing signal and calculating the parking position information of the approaching vehicle according to the vehicle warehousing signal and the approaching vehicle driving route information.

Optionally, the identification generating module of the vehicle to be delivered includes:

the in-field vehicle position information acquisition module acquires a parking lot monitoring image and acquires in-field vehicle position information according to the parking lot monitoring image;

The vehicle waiting-for-departure signal generation module is used for calculating the position difference between the vehicle position information in the field and the parking position information of the entering vehicle according to the vehicle position information in the field, and generating a vehicle waiting-for-departure signal when the position difference is larger than a preset value;

The outgoing identification matching module is used for matching incoming vehicle identification corresponding to the outgoing vehicle according to the outgoing signal of the vehicle to generate the outgoing vehicle identification.

Optionally, the exit gateway control signal generating module includes:

the system comprises a vehicle position information acquisition module for exiting a parking lot, a parking lot monitoring image acquisition module and a vehicle position information acquisition module, wherein the vehicle position information acquisition module acquires a parking lot monitoring image, tracks the vehicle to be exiting the parking lot according to the mark of the parking lot monitoring image and acquires the vehicle position information to be exiting the parking lot;

The exit signal generation module is used for calculating the position difference of the position information of the vehicle to be exported and the position information of the exit barrier, and when the position difference is smaller than a preset value, namely the vehicle to be exported arrives at the exit, the identity of the vehicle to be exported is verified, and an exit barrier control signal is generated after verification is passed so as to control the opening and closing of the exit barrier.

The specific limitation of the multi-license-plate barrier control device for the parking lot can be referred to as the limitation of the multi-license-plate barrier control method for the parking lot, and the description thereof is omitted herein. The modules in the multi-license-plate barrier control device of the parking lot can be fully or partially realized by software, hardware and a combination thereof. The above modules may be embedded in hardware or may be independent of a processor in the computer device, or may be stored in software in a memory in the computer device, so that the processor may call and execute operations corresponding to the above modules.

In one embodiment, a computer device is provided, which may be a server, and the internal structure of which may be as shown in fig. 9. The computer device includes a processor, a memory, a network interface, and a database connected by a system bus. Wherein the processor of the computer device is configured to provide computing and control capabilities. The memory of the computer device includes a non-volatile storage medium and an internal memory. The non-volatile storage medium stores an operating system, computer programs, and a database. The internal memory provides an environment for the operation of the operating system and computer programs in the non-volatile storage media. The database of the computer equipment is used for storing a first identification model, a second identification model, pre-stored information, an entering vehicle license plate number, an entering vehicle identity, parking position information and a vehicle identity to be delivered. The network interface of the computer device is used for communicating with an external terminal through a network connection. The computer program when executed by the processor is used for realizing a multi-license plate barrier control method of the parking lot.

In one embodiment, a computer device is provided comprising a memory, a processor, and a computer program stored on the memory and executable on the processor, the processor implementing the steps of when executing the computer program:

Acquiring a queuing approaching vehicle image, judging the type of the queuing approaching vehicle license plate according to the queuing approaching vehicle image, and judging a corresponding license plate recognition model according to the type of the queuing approaching vehicle license plate;

Obtaining an approaching vehicle image to be identified, and carrying out standard license plate positioning on the approaching vehicle image to be identified by using a corresponding license plate identification model to obtain a standard license plate position;

Extracting a standard license plate image from the to-be-identified approaching vehicle image according to the standard license plate position, and identifying to obtain the to-be-approaching vehicle license plate number;

generating an entrance vehicle identity according to the number of the license plate of the vehicle to be entered, and transmitting an entrance barrier control signal after verifying the entrance vehicle identity;

the method comprises the steps of performing entrance vehicle mark tracking on an entrance vehicle, and acquiring parking position information of the entrance vehicle according to the entrance vehicle mark tracking;

Acquiring in-field vehicle position information, calculating according to the in-field vehicle position information and the in-field vehicle parking position information to acquire a vehicle to-be-ex-field signal, matching an in-field vehicle identity corresponding to the to-be-ex-field vehicle according to the vehicle to-be-ex-field signal, and generating an out-field vehicle identity;

In one embodiment, a computer readable storage medium is provided having a computer program stored thereon, which when executed by a processor, performs the steps of:

Those skilled in the art will appreciate that implementing all or part of the above described methods may be accomplished by way of a computer program stored on a non-transitory computer readable storage medium, which when executed, may comprise the steps of the embodiments of the methods described above. Any reference to memory, storage, database, or other medium used in embodiments provided herein may include non-volatile and/or volatile memory. The nonvolatile memory can include Read Only Memory (ROM), programmable ROM (PROM), electrically Programmable ROM (EPROM), electrically Erasable Programmable ROM (EEPROM), or flash memory. Volatile memory can include Random Access Memory (RAM) or external cache memory. By way of illustration and not limitation, RAM is available in a variety of forms such as Static RAM (SRAM), dynamic RAM (DRAM), synchronous DRAM (SDRAM), double Data Rate SDRAM (DDRSDRAM), enhanced SDRAM (ESDRAM), synchronous link (SYNCHLINK) DRAM (SLDRAM), memory bus (Rambus) direct RAM (RDRAM), direct memory bus dynamic RAM (DRDRAM), and memory bus dynamic RAM (RDRAM), among others.

It will be apparent to those skilled in the art that, for convenience and brevity of description, only the above-described division of the functional units and modules is illustrated, and in practical application, the above-described functional distribution may be performed by different functional units and modules according to needs, i.e. the internal structure of the apparatus is divided into different functional units or modules to perform all or part of the above-described functions.

The above embodiments are only for illustrating the technical solution of the present application, and not for limiting the same; although the application has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present application, and are intended to be included in the scope of the present application.

Claims

1. The method for controlling the multi-license-plate barrier gate of the parking lot is characterized by comprising the following steps of:

Acquiring a parking lot monitoring image, acquiring in-field vehicle position information according to the parking lot monitoring image, calculating the position difference between the in-field vehicle position information and the in-field vehicle parking position information according to the in-field vehicle position information, generating a vehicle to-be-discharged signal when the position difference is larger than a preset value, and generating an in-field vehicle identity identifier corresponding to the vehicle to-be-discharged according to the vehicle to-be-discharged signal;

2. The method for controlling a parking lot multi-license plate barrier according to claim 1, wherein the steps of obtaining a vehicle image of a vehicle in a queue, judging a type of a license plate of the vehicle in the queue according to the vehicle image of the vehicle in the queue, and judging a corresponding license plate recognition model according to the type of the license plate of the vehicle in the queue, specifically include:

3. The method for controlling the parking lot multi-license plate barrier according to claim 1, wherein the step of obtaining the image of the approaching vehicle to be identified, and the step of using the corresponding license plate identification model to perform standard license plate positioning on the image of the approaching vehicle to be identified, to obtain the standard license plate position, comprises the following steps:

4. The method for controlling a parking lot multi-license-plate barrier according to claim 1, wherein the generating an approach vehicle identity according to the number of the license plate of the vehicle to be approach, after verifying the approach vehicle identity, generates a barrier control signal, specifically comprising:

5. The method for controlling a multi-license-plate barrier in a parking lot according to claim 1, wherein the step of performing entrance vehicle mark tracking on the entrance vehicle, and acquiring parking position information of the entrance vehicle according to the entrance vehicle mark tracking, comprises the steps of:

6. The method for controlling the multi-license-plate barrier gate of the parking lot according to claim 1, wherein the mark tracks the vehicles to be exported, verifies the identity of the vehicles to be exported when the vehicles to be exported arrive at the export, and sends the barrier gate control signal after the verification is passed, specifically comprising:

7. The utility model provides a many license plates banister controlling means of parking area which characterized in that, many license plates banister controlling means of parking area includes:

The system comprises a parking lot monitoring image acquisition module, a parking lot identification generation module and a parking lot identification generation module, wherein the parking lot monitoring image acquisition module is used for acquiring in-field vehicle position information according to the parking lot monitoring image, calculating the position difference between the in-field vehicle position information and the parking position information of the in-field vehicle according to the in-field vehicle position information, generating a vehicle to-be-discharged signal when the position difference is larger than a preset value, and generating an in-field vehicle identification corresponding to the vehicle to be discharged according to the vehicle to-be-discharged signal;

8. A computer device comprising a memory, a processor and a computer program stored in the memory and executable on the processor, characterized in that the processor, when executing the computer program, implements the steps of the method for controlling a multi-licence-plate barrier in a parking lot as claimed in any one of claims 1 to 6.

9. A computer readable storage medium storing a computer program, wherein the computer program when executed by a processor implements the steps of the parking lot multi-license barrier control method of any one of claims 1 to 6.