A method and system for judging a following behavior based on a parking lot barrier state

Abstract

The application discloses a car-following behavior judgment method and system based on parking lot barrier state, relates to the field of intelligent parking management, and comprises the following steps: acquiring the entry and exit events of vehicles at the entrance and exit areas of a parking lot according to images collected by a parking lot lane monitoring camera, comprehensively judging whether abnormal car-following behaviors exist at the entrances and exits of the parking lot by combining the barrier state information in the target entry and exit processes of the vehicles, and efficiently and accurately judging the abnormal car-following behaviors at the barrier areas of the entrances and exits of the parking lot, so that reliable early warning information is provided for the parking lot, the problem of vehicle fee evasion and single running of the parking lot can be avoided, economic losses of the parking lot are reduced, and the efficiency and safety of parking lot management are improved.

Description

Technical Field

[0001] This invention relates to the field of intelligent parking management, and in particular to a method and system for judging following behavior based on the status of parking lot gates. Background Technology

[0002] In recent years, the scale of urban parking facilities in my country has continued to expand, parking order has been continuously improved, and industrialization has gradually deepened. However, the operation and management problems of enclosed parking lots are becoming increasingly numerous. For example, congestion caused by vehicles lingering at exit lanes, false exits followed by vehicles returning to evade payment, and following other vehicles to evade payment are common occurrences. In particular, the problem of following other vehicles to evade payment is a persistent issue in the parking industry. Single license plate recognition devices, due to factors such as recognition angle, distance from the vehicle in front, and anti-smashing mechanisms of the barrier gate, cannot effectively solve the problem of following other vehicles, resulting in serious economic losses for parking lot operators.

[0003] Currently, when managing vehicle entry and exit, if vehicle A approaches the recognition area of ​​the exit or entrance lane, and vehicle B follows behind at a certain distance, the license plate recognition machine identifies vehicle A and obtains its license plate. It then sends the license plate information to the parking lot fee management system. The system determines there are outstanding parking fees and prompts vehicle A's owner to pay. After payment, the system sends a command to the gate to open. However, if vehicle B starts simultaneously and follows vehicle A from behind within a certain distance (e.g., 0.5 meters), the gate's anti-smashing mechanism keeps the gate arm constantly raised, preventing vehicle B from exiting. This allows some vehicles to evade recognition by the license plate recognition machine and the parking lot fee management system's billing process, resulting in a problem of fee evasion in existing parking lot management. Summary of the Invention

[0004] To address the aforementioned technical problems, this invention provides a method and system for judging following behavior based on the status of parking lot gates. This method can solve the problem of some following vehicles evading identification by license plate recognition integrated machines and the process of billing and charging related vehicles by the parking lot fee management system, thus leading to the problem of fee evasion in existing parking lot management.

[0005] To achieve the above objectives, on the one hand, the present invention provides a method for judging following behavior based on the status of a parking lot gate, the method comprising:

[0006] Determine whether there is a vehicle target in the first gate recognition area at the parking lot entrance based on images captured by the parking lot lane monitoring camera;

[0007] If present, the system will determine whether the same vehicle target exists in the identification area of ​​the second gate at the parking lot entrance based on the images captured by the parking lot lane monitoring camera.

[0008] If it exists, then generate event information about the vehicle target passing through the entrance gate;

[0009] Based on the vehicle identification information obtained by the parking lot lane monitoring camera within the preset time period, it is determined whether there is identification information that is the same as and / or similar to the identification information of the vehicle target passing through the entrance gate;

[0010] If not, the vehicle target passing through the entrance gate is confirmed as a suspected abnormal following target, and the gate status information corresponding to the suspected abnormal following target within a preset time period is obtained based on the gate area image collected by the parking lot lane monitoring camera.

[0011] If the barrier gate remains in the raised state throughout the preset time period, it is confirmed that the suspected abnormal following target is exhibiting abnormal following behavior.

[0012] Furthermore, after the step of determining whether there is identification information identical and / or similar to the identification information of the vehicle target passing through the entrance gate based on the vehicle identification information identified by the parking lot lane monitoring camera within a preset time period, the method further includes:

[0013] If identical and / or similar identification information exists and no entry / exit record for the vehicle is generated, then the vehicle target passing through the entrance gate is confirmed as a suspected abnormal following target.

[0014] Furthermore, the step of obtaining the gate status information corresponding to the suspected abnormal following target within a preset time period based on the gate area image collected by the parking lot lane monitoring camera includes:

[0015] Based on the images of the barrier gate area collected by the parking lot lane monitoring camera, the barrier gate status information corresponding to the time point between the time point when the suspected abnormal following target fully enters the first identification area of ​​the entrance channel and the time point when it fully exits the second identification area of ​​the entrance channel is obtained.

[0016] Furthermore, the method also includes:

[0017] Determine whether there are vehicle targets in the recognition area of ​​the third gate at the parking lot exit based on images captured by the parking lot lane monitoring cameras;

[0018] If present, the system will determine whether the same vehicle target exists in the fourth gate identification area at the parking lot exit based on the images captured by the parking lot lane monitoring camera.

[0019] If it exists, then generate event information for the vehicle target passing through the exit gate;

[0020] Based on the vehicle identification information obtained by the parking lot lane monitoring camera within the preset time period, it is determined whether there is identification information that is the same as and / or similar to the identification information of the vehicle target passing through the exit gate;

[0021] If not, the vehicle target passing through the exit gate is confirmed as a suspected abnormal following target, and the gate status information corresponding to the suspected abnormal following target within a preset time period is obtained based on the gate area image collected by the parking lot lane monitoring camera.

[0022] If the barrier gate remains in the raised state throughout the preset time period, it is confirmed that the suspected abnormal following target is exhibiting abnormal following behavior.

[0023] Furthermore, the step of obtaining the gate status information corresponding to the suspected abnormal following target within a preset time period based on the gate area image collected by the parking lot lane monitoring camera includes:

[0024] Based on the images of the barrier gate area collected by the parking lot lane monitoring camera, the barrier gate status information is obtained between the time point when the suspected abnormal following target fully enters the third identification area of ​​the exit channel and the time point when it fully exits the fourth identification area of ​​the exit channel.

[0025] On the other hand, the present invention provides a vehicle following behavior judgment system based on the status of parking lot gate, the system comprising: a judgment unit, used to judge whether there is a vehicle target in the recognition area of ​​the first gate at the entrance of the parking lot based on the image collected by the parking lot lane monitoring camera;

[0026] The judgment unit is also used to determine whether the same vehicle target exists in the identification area of ​​the second gate at the entrance of the parking lot based on the image collected by the parking lot lane monitoring camera if it exists.

[0027] A generation unit is used to generate event information of the vehicle target passing through the entrance gate if it exists.

[0028] The judgment unit is also used to determine whether there is identification information that is the same as and / or similar to the identification information of the vehicle target passing through the entrance gate, based on the vehicle identification information identified and obtained by the parking lot lane monitoring camera within a preset time period.

[0029] The confirmation unit is used to confirm, if not, that the vehicle target passing through the entrance gate is a suspected abnormal following target, and to obtain the gate status information corresponding to the suspected abnormal following target within a preset time period based on the gate area image collected by the parking lot lane monitoring camera.

[0030] The confirmation unit is also used to confirm that the suspected abnormal following target has abnormal following behavior if the barrier gate is always in the raised state during the preset time period.

[0031] Furthermore, the confirmation unit is also used to confirm that the vehicle target passing through the entrance gate is a suspected abnormal following target if there is the same and / or similar identification information and no entry or exit record of the vehicle is generated.

[0032] Furthermore, the confirmation unit is specifically used to obtain the gate status information corresponding to the time point between the time point when the suspected abnormal following target fully enters the first identification area of ​​the entrance channel and the time point when it fully exits the second identification area of ​​the entrance channel, based on the gate area image collected by the parking lot lane monitoring camera.

[0033] Furthermore, the judgment unit is also used to determine whether there is a vehicle target in the third gate identification area of ​​the parking lot exit based on the image collected by the parking lot lane monitoring camera; if there is, it determines whether there is the same vehicle target in the fourth gate identification area of ​​the parking lot exit based on the image collected by the parking lot lane monitoring camera; if there is, it generates event information of the vehicle target passing through the exit gate; it determines whether there is identification information that is the same as and / or similar to the identification information of the vehicle target passing through the exit gate based on the vehicle identification information obtained by the parking lot lane monitoring camera within a preset time period; if not, it confirms that the vehicle target passing through the exit gate is a suspected abnormal following target, and obtains the gate status information corresponding to the suspected abnormal following target within the preset time period based on the gate area image collected by the parking lot lane monitoring camera; if the gate is always in the raised state within the preset time period, it confirms that the suspected abnormal following target has abnormal following behavior.

[0034] Furthermore, the confirmation unit is specifically used to obtain the gate status information corresponding to the time point from the time point when the suspected abnormal following target fully enters the third identification area of ​​the exit channel to the time point when it fully exits the fourth identification area of ​​the exit channel, based on the gate area image collected by the parking lot lane monitoring camera.

[0035] This invention provides a method and system for judging following behavior based on the status of parking lot gates. Based on images captured by parking lot lane monitoring cameras, it identifies vehicle entry and exit events at the parking lot entrance and exit areas. Simultaneously, it combines gate status information during vehicle entry and exit to comprehensively determine whether abnormal following behavior exists at the parking lot entrance and exit. This method can efficiently and accurately identify abnormal following behavior in the parking lot entrance and exit gate areas, providing reliable early warning information for parking lots. This helps prevent vehicles from evading payment, reduces economic losses for parking lots, and improves the efficiency and security of parking lot management. Attached Figure Description

[0036] Figure 1This is a flowchart of a method for judging following behavior based on the status of a parking lot gate, provided by the present invention;

[0037] Figure 2 This is a schematic diagram of a vehicle following behavior judgment system based on the status of a parking lot gate provided by the present invention. Detailed Implementation

[0038] The technical solution of the present invention will be further described in detail below with reference to the accompanying drawings and embodiments.

[0039] like Figure 1 As shown in the figure, an embodiment of the present invention provides a method for judging following behavior based on the status of a parking lot gate, which includes the following steps:

[0040] 101. Determine whether there is a vehicle target in the first gate identification area at the entrance of the parking lot based on the images collected by the parking lot lane monitoring camera.

[0041] The first gate identification area is designated on the side outside the parking lot at the entrance gate arm.

[0042] 102. If present, determine whether the same vehicle target exists in the identification area of ​​the second gate at the entrance of the parking lot based on the images collected by the parking lot lane monitoring camera.

[0043] The second gate identification area is designated on one side of the parking lot within the entrance gate arm.

[0044] 103. If it exists, generate event information for the vehicle target passing through the entrance gate.

[0045] For example, in the images or videos captured by the lane monitoring camera, the area outside the parking lot at the entrance gate is designated as recognition area C, and the area inside the parking lot at the entrance gate is designated as recognition area D. When the lane monitoring camera detects a moving object entering recognition area C using its algorithm, and determines that the moving object matches the characteristics of a motor vehicle, it outputs the conclusion that a vehicle is present in recognition area C. Simultaneously, the lane monitoring camera acquires multiple consecutive images of the vehicle from various angles or a period of video information, and uses the algorithm to identify the vehicle's license plate information from these images or video clips. Similarly, when the lane monitoring camera detects a moving object entering recognition area D using its algorithm, and determines that the moving object matches the characteristics of a motor vehicle, it outputs the conclusion that a vehicle is present in recognition area D. Simultaneously, the lane monitoring camera acquires multiple consecutive images of the vehicle from various angles or a period of video information, and uses the algorithm to identify the vehicle's license plate information from these images or video clips. The lane monitoring camera compares the license plate information currently appearing in recognition area D with the license plate information most recently appearing in recognition area C. If the two license plate information match, the system generates a flow event indicating that the relevant license plate has passed through the entrance gate.

[0046] 104. Based on the vehicle identification information obtained by the parking lot lane monitoring camera within the preset time period, determine whether there is identification information that is the same as and / or similar to the identification information of the vehicle target passing through the entrance gate.

[0047] For example, 10 seconds after the parking lot toll management system receives the vehicle flow record from the lane monitoring camera, it begins querying the flow records of vehicles with the same license plate number obtained from the integrated recognition machine within the previous 60 seconds. If the system determines that there is no identical license plate number flow record, it continues to check for similar license plate number flow records; that is, two license plates with only one different character or different color are considered similar license plates. If the system determines that there are identical or similar recognition machine flow records, it continues to check whether an entry or exit record has been generated: if an entry or exit record has been generated, the parking lot toll management system ignores the recognition flow record sent by the lane monitoring camera; if no entry or exit record has been generated, the parking lot toll management system considers the currently passed license plate as a suspected following behavior record. If it determines that there are no identical or similar recognition machine flow records, the parking lot toll management system considers the currently passed license plate as a suspected following behavior record.

[0048] Furthermore, after the step of determining whether there is identification information that is the same as or similar to the identification information of the vehicle target passing through the entrance gate based on the vehicle identification information identified by the parking lot lane monitoring camera within a preset time period, the method further includes: if there is the same and / or similar identification information and no entry or exit record of the vehicle is generated, then the vehicle target passing through the entrance gate is confirmed as a suspected abnormal following target.

[0049] 105. If not, the vehicle target passing through the entrance gate is confirmed as a suspected abnormal following target, and the gate status information corresponding to the suspected abnormal following target within a preset time period is obtained based on the gate area image collected by the parking lot lane monitoring camera.

[0050] Specifically, based on the images of the barrier gate area collected by the parking lot lane monitoring camera, the barrier gate status information corresponding to the time point between the time point when the suspected abnormal following target fully enters the first identification area of ​​the entrance channel and the time point when it fully exits the second identification area of ​​the entrance channel is obtained.

[0051] For example, lane monitoring cameras acquire images or video information of the gates in the monitored parking lot lanes. Using a gate status recognition algorithm, and based on the position of the gate arm and its angle to the ground in the image or video, the system determines whether the gate is closed or open. When a suspected following behavior record is identified, the system simultaneously checks whether the gate arm was consistently raised between points E and F. If the gate arm was not consistently raised between points E and F, the following behavior record is ignored or manually determined. If the gate arm was consistently raised between points E and F, the vehicle is considered to have engaged in following behavior. If a vehicle exiting the parking lot and awaiting payment is identified as having followed behavior, the system automatically generates an outstanding payment order so that the vehicle owner can pay all outstanding parking fees at the next payment. If an entering vehicle or an exiting vehicle not requiring payment is identified as having followed behavior, the system automatically adds the entry or exit record.

[0052] Specifically, when a vehicle exits, time point E is the time when the vehicle fully enters the recognition area A of the exit lane, and time point F is the time when the vehicle fully exits the recognition area B of the exit lane. When a vehicle enters, time point E is the time when the vehicle fully enters the recognition area C of the entrance lane, and time point F is the time when the vehicle fully exits the recognition area D of the entrance lane.

[0053] 106. If the barrier gate remains in the raised state throughout the preset time period, it is confirmed that the suspected abnormal following target has abnormal following behavior.

[0054] Furthermore, when a vehicle exits the parking lot, the system determines whether a vehicle target exists in the third gate identification area of ​​the parking lot exit based on images captured by the parking lot lane monitoring camera. If so, it determines whether the same vehicle target exists in the fourth gate identification area of ​​the parking lot exit based on images captured by the parking lot lane monitoring camera. If so, it generates event information indicating that the vehicle target has passed through the exit gate. The system then determines whether there is any identification information identical or similar to that of the vehicle target passing through the exit gate based on vehicle identification information acquired by the parking lot lane monitoring camera within a preset time period. If not, the vehicle target passing through the exit gate is confirmed as a suspected abnormal following target, and the gate status information corresponding to the suspected abnormal following target within the preset time period is obtained based on the gate area images captured by the parking lot lane monitoring camera. If the gate remains in the raised state throughout the preset time period, the suspected abnormal following target is confirmed to have abnormal following behavior. The third gate identification area is defined on the parking lot side of the exit gate arm, and the fourth gate identification area is defined on the parking lot side of the exit gate arm.

[0055] For example, in the images or videos captured by the lane monitoring camera, the area inside the parking lot at the exit gate is designated as recognition area A, and the area outside the parking lot at the exit gate is designated as recognition area B. When the lane monitoring camera detects a moving object entering recognition area A using an algorithm, and determines that the moving object matches the characteristics of a motor vehicle, it outputs the conclusion that a vehicle is present in recognition area A. Simultaneously, the lane monitoring camera acquires multiple consecutive images of the vehicle from multiple angles or a period of video information, and uses an algorithm to identify the vehicle's license plate information from these images or video clips. Similarly, when the lane monitoring camera detects a moving object entering recognition area B using an algorithm, and determines that the moving object matches the characteristics of a motor vehicle, it outputs the conclusion that a vehicle is present in recognition area B. Simultaneously, the lane monitoring camera acquires multiple consecutive images of the vehicle from multiple angles or a period of video information, and uses an algorithm to identify the vehicle's license plate information from these images or video clips. The lane monitoring camera compares the license plate information currently appearing in recognition area B with the license plate information most recently appearing in recognition area A. If the two license plate information match, the system generates a flow event indicating that the relevant license plate has passed through the exit gate.

[0056] In this embodiment of the invention, the step of obtaining the gate status information of the suspected abnormal following target within a preset time period based on the gate area image collected by the parking lot lane monitoring camera includes: obtaining the gate status information of the suspected abnormal following target between the time point when it fully enters the third identification area of ​​the exit channel and the time point when it fully exits the fourth identification area of ​​the exit channel based on the gate area image collected by the parking lot lane monitoring camera.

[0057] This invention provides a method for judging following behavior based on the status of parking lot gates. It identifies vehicle entry and exit events at the entrance and exit areas of the parking lot based on images captured by parking lot lane monitoring cameras. Simultaneously, it combines gate status information during vehicle entry and exit to comprehensively determine whether abnormal following behavior exists at the parking lot entrance and exit. This method can efficiently and accurately identify abnormal following behavior in the parking lot entrance and exit gate areas, providing reliable early warning information for the parking lot. This helps prevent vehicles from evading payment, reduces economic losses for the parking lot, and improves the efficiency and security of parking lot management.

[0058] To implement the method provided in the embodiments of the present invention, the embodiments of the present invention provide a vehicle following behavior judgment system based on the status of parking lot gates, such as... Figure 2 As shown, the system includes: a judgment unit 21, a generation unit 22, and a confirmation unit 23;

[0059] Judgment unit 21 is used to determine whether there is a vehicle target in the first gate identification area of ​​the parking lot entrance based on the image collected by the parking lot lane monitoring camera;

[0060] The judgment unit 21 is also used to determine whether the same vehicle target exists in the identification area of ​​the second gate at the entrance of the parking lot based on the image collected by the parking lot lane monitoring camera if it exists.

[0061] The generation unit 22 is used to generate event information of the vehicle target passing through the entrance gate if it exists;

[0062] The judgment unit 21 is also used to determine whether there is identification information that is the same as and / or similar to the identification information of the vehicle target passing through the entrance gate, based on the vehicle identification information identified and obtained by the parking lot lane monitoring camera within a preset time period.

[0063] The confirmation unit 23 is used to confirm, if not, that the vehicle target passing through the entrance gate is a suspected abnormal following target, and to obtain the gate status information corresponding to the suspected abnormal following target within a preset time period based on the gate area image collected by the parking lot lane monitoring camera.

[0064] The confirmation unit 23 is also used to confirm that the suspected abnormal following target has abnormal following behavior if the barrier gate is always in the raised state during the preset time period.

[0065] Furthermore, the confirmation unit 23 is also used to confirm that the vehicle target passing through the entrance gate is a suspected abnormal following target if there is the same and / or similar identification information and no entry or exit record of the vehicle is generated.

[0066] Furthermore, the confirmation unit 23 is specifically used to obtain the gate status information corresponding to the time point between the time point when the suspected abnormal following target fully enters the first identification area of ​​the entrance channel and the time point when it fully exits the second identification area of ​​the entrance channel, based on the gate area image collected by the parking lot lane monitoring camera.

[0067] Furthermore, the judgment unit 21 is also used to determine whether there is a vehicle target in the third gate identification area of ​​the parking lot exit based on the image collected by the parking lot lane monitoring camera; if there is, it determines whether there is the same vehicle target in the fourth gate identification area of ​​the parking lot exit based on the image collected by the parking lot lane monitoring camera; if there is, it generates event information of the vehicle target passing through the exit gate; it determines whether there is the same and / or similar identification information as the vehicle target passing through the exit gate based on the vehicle identification information obtained by the parking lot lane monitoring camera within a preset time period; if not, it confirms that the vehicle target passing through the exit gate is a suspected abnormal following target, and obtains the gate status information corresponding to the suspected abnormal following target within the preset time period based on the gate area image collected by the parking lot lane monitoring camera; if the gate is always in the raised state within the preset time period, it confirms that the suspected abnormal following target has abnormal following behavior.

[0068] Furthermore, the confirmation unit 23 is specifically used to obtain the gate status information corresponding to the time point between the time point when the suspected abnormal following target fully enters the third identification area of ​​the exit channel and the time point when it fully exits the fourth identification area of ​​the exit channel, based on the gate area image collected by the parking lot lane monitoring camera.

[0069] This invention provides a vehicle-following behavior judgment system based on the status of parking lot gates. It identifies vehicle entry and exit events at the parking lot entrance and exit areas based on images captured by parking lot lane monitoring cameras. Simultaneously, it combines gate status information during vehicle entry and exit to comprehensively determine whether abnormal vehicle-following behavior exists at the parking lot entrance and exit. This system can efficiently and accurately identify abnormal vehicle-following behavior in the parking lot entrance and exit gate areas, providing reliable early warning information for parking lots. This helps prevent vehicles from evading payment, reduces economic losses for parking lots, and improves the efficiency and security of parking lot management.

[0070] It should be understood that the specific order or hierarchy of steps in the disclosed process is an example of an exemplary method. Based on design preferences, it should be understood that the specific order or hierarchy of steps in the process may be rearranged without departing from the scope of this disclosure. The appended method claims provide elements of various steps in an exemplary order and are not intended to limit the scope to the specific order or hierarchy described.

[0071] In the above detailed description, various features are combined together in a single embodiment to simplify this disclosure. This approach to disclosure should not be construed as reflecting an intention that embodiments of the claimed subject matter require more features than are explicitly stated in each claim. Rather, as reflected in the appended claims, the invention is presented with fewer features than all of the features of the single disclosed embodiment. Therefore, the appended claims are hereby explicitly incorporated into the detailed description, wherein each claim stands alone as a preferred embodiment of the invention.

[0072] The disclosed embodiments have been described above to enable any person skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein can be applied to other embodiments without departing from the spirit and scope of this disclosure. Therefore, this disclosure is not limited to the embodiments given herein, but is consistent with the broadest scope of the principles and novel features disclosed in this application.

[0073] The foregoing description includes examples of one or more embodiments. It is certainly impossible to describe all possible combinations of components or methods in order to describe the above embodiments, but those skilled in the art will recognize that further combinations and arrangements of the various embodiments are possible. Therefore, the embodiments described herein are intended to cover all such changes, modifications, and variations that fall within the scope of the appended claims. Furthermore, the term "comprising" as used in the specification or claims is interpreted in a manner similar to the term "including," as interpreted when used as a conjunction in the claims. Additionally, the use of any term "or" in the specification of the claims is intended to mean "non-exclusive or."

[0074] Those skilled in the art will also understand that the various illustrative logical blocks, units, and steps listed in the embodiments of the present invention can be implemented by electronic hardware, computer software, or a combination of both. To clearly demonstrate the interchangeability of hardware and software, the functions of the various illustrative components, units, and steps described above have been generally described. Whether such functionality is implemented through hardware or software depends on the specific application and the overall system design requirements. Those skilled in the art can implement the described functions using various methods for each specific application, but such implementation should not be construed as exceeding the scope of protection of the embodiments of the present invention.

[0075] The various illustrative logic blocks or units described in the embodiments of this invention can be implemented or operate the described functions using a general-purpose processor, digital signal processor, application-specific integrated circuit (ASIC), field-programmable gate array or other programmable logic system, discrete gate or transistor logic, discrete hardware components, or any combination thereof. The general-purpose processor can be a microprocessor; alternatively, it can be any conventional processor, controller, microcontroller, or state machine. The processor can also be implemented using a combination of computing systems, such as a digital signal processor and a microprocessor, multiple microprocessors, one or more microprocessors combined with a digital signal processor core, or any other similar configuration.

[0076] The steps of the methods or algorithms described in the embodiments of this invention can be directly embedded in hardware, a software module executed by a processor, or a combination of both. The software module can be stored in RAM, flash memory, ROM, EPROM, EEPROM, registers, hard disk, removable disk, CD-ROM, or any other form of storage medium in the art. Exemplarily, the storage medium can be connected to the processor so that the processor can read information from and write information to the storage medium. Optionally, the storage medium can also be integrated into the processor. The processor and storage medium can be housed in an ASIC, which can be housed in a user terminal. Optionally, the processor and storage medium can also be housed in different components of the user terminal.

[0077] In one or more exemplary designs, the functions described in the embodiments of the present invention can be implemented in hardware, software, firmware, or any combination of these three. If implemented in software, these functions can be stored on a computer-readable medium or transmitted on a computer-readable medium in the form of one or more instructions or code. Computer-readable media include computer storage media and communication media that facilitate the transfer of computer programs from one place to another. Storage media can be any available media that can be accessed by a general-purpose or special-purpose computer. For example, such computer-readable media can include, but is not limited to, RAM, ROM, EEPROM, CD-ROM or other optical disk storage, magnetic disk storage or other magnetic storage systems, or any other medium that can be used to carry or store program code in the form of instructions or data structures and other forms that can be read by a general-purpose or special-purpose computer, or a general-purpose or special-purpose processor. Furthermore, any connection can be suitably defined as a computer-readable medium, for example, if the software is transmitted from a website, server, or other remote resource via a coaxial cable, fiber optic cable, twisted pair, digital subscriber line (DSL), or wirelessly, such as infrared, wireless, and microwave, it is also included in the defined computer-readable medium. The disks and discs mentioned include compressed disks, laser discs, optical discs, DVDs, floppy disks, and Blu-ray discs. Disks typically copy data magnetically, while disks typically copy data optically using lasers. Combinations of the above can also be contained in computer-readable media.

[0078] The specific embodiments described above further illustrate the purpose, technical solution, and beneficial effects of the present invention. It should be understood that the above descriptions are merely specific embodiments of the present invention and are not intended to limit the scope of protection of the present invention. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

Claims

1. A method for judging following behavior based on the status of a parking lot gate, characterized in that, The method includes: Determine whether there is a vehicle target in the first gate recognition area at the parking lot entrance based on images captured by the parking lot lane monitoring camera; If present, the system will determine whether the same vehicle target exists in the identification area of ​​the second gate at the parking lot entrance based on the images captured by the parking lot lane monitoring camera. If it exists, then generate event information about the vehicle target passing through the entrance gate; Based on the vehicle identification information obtained by the parking lot lane monitoring camera within the preset time period, it is determined whether there is identification information that is the same as and / or similar to the identification information of the vehicle target passing through the entrance gate; If not, the vehicle target passing through the entrance gate is confirmed as a suspected abnormal following target, and the gate status information corresponding to the suspected abnormal following target within a preset time period is obtained based on the gate area image collected by the parking lot lane monitoring camera. If the barrier gate remains in the raised state throughout the preset time period, it is confirmed that the suspected abnormal following target has abnormal following behavior. The step of determining whether there is identification information that is the same as and / or similar to the identification information of a vehicle target passing through the entrance gate, based on the vehicle identification information identified by the parking lot lane monitoring camera within a preset time period, includes: Ten seconds after the parking lot toll management system receives the vehicle flow data from the lane monitoring camera, it begins querying the flow data of vehicles with the same license plate number obtained from the integrated recognition machine within the previous 60 seconds. If the system determines that there is no flow data with the same license plate number, it continues to determine whether there is flow data with a similar license plate number. If the system determines that there is a flow data with the same or similar license plate number obtained from the integrated recognition machine, it continues to determine whether an entry or exit record has been generated: If an entry or exit record has been generated, the parking lot toll management system ignores the recognition flow data sent by the lane monitoring camera; if no entry or exit record has been generated, the parking lot toll management system determines that the currently passed license plate is a suspected following behavior record; if it determines that there is no flow data with the same or similar license plate number obtained from the integrated recognition machine, the parking lot toll management system determines that the currently passed license plate is a suspected following behavior record.

2. The method for judging following behavior based on the status of a parking lot gate according to claim 1, characterized in that, After the step of determining whether there is identification information identical and / or similar to the identification information of a vehicle target passing through the entrance gate based on the vehicle identification information identified by the parking lot lane monitoring camera within a preset time period, the method further includes: If identical and / or similar identification information exists and no entry / exit record for the vehicle is generated, then the vehicle target passing through the entrance gate is confirmed as a suspected abnormal following target.

3. The method for judging following behavior based on the status of a parking lot gate according to claim 1, characterized in that, The step of obtaining the gate status information of the suspected abnormal following target within a preset time period based on the gate area image collected by the parking lot lane monitoring camera includes: Based on the images of the barrier gate area collected by the parking lot lane monitoring camera, the barrier gate status information corresponding to the time point between the time point when the suspected abnormal following target fully enters the first identification area of ​​the entrance channel and the time point when it fully exits the second identification area of ​​the entrance channel is obtained.

4. The method for judging following behavior based on the status of a parking lot gate according to claim 1, characterized in that, The method further includes: Determine whether there are vehicle targets in the recognition area of ​​the third gate at the parking lot exit based on images captured by the parking lot lane monitoring cameras; If present, the system will determine whether the same vehicle target exists in the fourth gate identification area at the parking lot exit based on the images captured by the parking lot lane monitoring camera. If it exists, then generate event information for the vehicle target passing through the exit gate; Based on the vehicle identification information obtained by the parking lot lane monitoring camera within the preset time period, it is determined whether there is identification information that is the same as and / or similar to the identification information of the vehicle target passing through the exit gate; If not, the vehicle target passing through the exit gate is confirmed as a suspected abnormal following target, and the gate status information corresponding to the suspected abnormal following target within a preset time period is obtained based on the gate area image collected by the parking lot lane monitoring camera. If the barrier gate remains in the raised state throughout the preset time period, it is confirmed that the suspected abnormal following target is exhibiting abnormal following behavior.

5. The method for judging following behavior based on the status of a parking lot gate according to claim 4, characterized in that, The step of obtaining the gate status information of the suspected abnormal following target within a preset time period based on the gate area image collected by the parking lot lane monitoring camera includes: Based on the images of the barrier gate area collected by the parking lot lane monitoring camera, the barrier gate status information is obtained between the time point when the suspected abnormal following target fully enters the third identification area of ​​the exit channel and the time point when it fully exits the fourth identification area of ​​the exit channel.

6. A system for judging vehicle following behavior based on the status of a parking lot gate, characterized in that, The system includes: The judgment unit is used to determine whether there is a vehicle target in the first gate recognition area of ​​the parking lot entrance based on the images captured by the parking lot lane monitoring camera. The judgment unit is also used to determine whether the same vehicle target exists in the identification area of ​​the second gate at the entrance of the parking lot based on the image collected by the parking lot lane monitoring camera if it exists. A generation unit is used to generate event information of the vehicle target passing through the entrance gate if it exists. The judgment unit is also used to determine whether there is identification information that is the same as and / or similar to the identification information of the vehicle target passing through the entrance gate, based on the vehicle identification information identified and obtained by the parking lot lane monitoring camera within a preset time period. The confirmation unit is used to confirm, if not, that the vehicle target passing through the entrance gate is a suspected abnormal following target, and to obtain the gate status information corresponding to the suspected abnormal following target within a preset time period based on the gate area image collected by the parking lot lane monitoring camera. The confirmation unit is also used to confirm that the suspected abnormal following target has abnormal following behavior if the barrier gate is always in the raised state during the preset time period. The judgment unit is specifically used to, 10 seconds after the parking lot toll management system receives the traffic flow of vehicles that have passed through the lane monitoring camera, start querying the traffic flow of the same license plate number obtained by the recognition machine within the previous 60 seconds. If the system determines that there is no traffic flow of the same license plate number, the system continues to determine whether there is traffic flow of similar license plate numbers. If the system determines that there are the same or similar traffic flow of the recognition machine, the system continues to determine whether an entry record or an exit record has been generated. If an entry record or an exit record has been generated, the parking lot toll management system ignores the recognition traffic flow sent by the lane monitoring camera. If no entry record or exit record has been generated, the parking lot toll management system determines that the currently passed license plate is a suspected following behavior record. If it determines that there are no the same or similar traffic flow of the recognition machine, the parking lot toll management system determines that the currently passed license plate is a suspected following behavior record.

7. A vehicle following behavior judgment system based on parking lot gate status according to claim 6, characterized in that, The confirmation unit is further configured to confirm that the vehicle target passing through the entrance gate is a suspected abnormal following target if there is the same and / or similar identification information and no entry or exit record of the vehicle is generated.

8. A system for judging vehicle following behavior based on the status of a parking lot gate, as described in claim 6, is characterized in that, The confirmation unit is further configured to obtain the gate status information corresponding to the time point between the time point when the suspected abnormal following target fully enters the first identification area of ​​the entrance channel and the time point when it fully exits the second identification area of ​​the entrance channel, based on the gate area image collected by the parking lot lane monitoring camera.

9. A vehicle following behavior judgment system based on parking lot gate status according to claim 6, characterized in that, The judgment unit is further configured to determine whether a vehicle target exists in the third gate identification area of ​​the parking lot exit based on the image captured by the parking lot lane monitoring camera; if so, determine whether the same vehicle target exists in the fourth gate identification area of ​​the parking lot exit based on the image captured by the parking lot lane monitoring camera; if so, generate event information of the vehicle target passing through the exit gate; determine whether there is identification information that is the same as and / or similar to the identification information of the vehicle target passing through the exit gate based on the vehicle identification information acquired by the parking lot lane monitoring camera within a preset time period; if not, confirm that the vehicle target passing through the exit gate is a suspected abnormal following target, and obtain the gate status information corresponding to the suspected abnormal following target within the preset time period based on the gate area image captured by the parking lot lane monitoring camera; if the gate is always in the raised state within the preset time period, confirm that the suspected abnormal following target has abnormal following behavior.

10. A system for judging vehicle following behavior based on the status of a parking lot gate, as described in claim 9, is characterized in that, The confirmation unit is further configured to obtain the gate status information corresponding to the time point from the time point when the suspected abnormal following target fully enters the third identification area of ​​the exit channel to the time point when it fully exits the fourth identification area of ​​the exit channel, based on the gate area image collected by the parking lot lane monitoring camera.

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