Method and system for detecting turn-back of vehicle leaving parking lot

Abstract

The invention relates to a vehicle leaving turn-back detection method and system, and the method comprises the steps: receiving a first ground induction signal of a first vehicle induced by a first ground induction coil, triggering a first camera to capture and recognize the first vehicle to obtain first information, and generating a leaving record and directly controlling a barrier gate to lift a lever for releasing if the first vehicle is paid and cleared; if a second ground sensing signal of the first vehicle sensed by the second ground sensing coil is not received and the first ground sensing signal disappears, the first vehicle is a departure turn-back vehicle, the departure record is not stored, and if the second ground sensing signal is received, a second camera is triggered to capture and identify the first vehicle to obtain second information, and the second information is stored; and when the second ground sensing signal disappears and the first ground sensing signal does not disappear, if the first information is the same as the second information, the first vehicle is a departure turn-back vehicle, and the departure record is not stored. According to the invention, the first ground induction coil and the second ground induction coil are used to realize the identification of a plurality of vehicles going out of the parking lot and turning back, and the management of the parking lot is optimized.

Description

Technical Field

[0001] The present invention relates to the technical field of parking management, and in particular to a detection method and system for vehicle exit and return. Background Art

[0002] Currently, there is a problem in parking lots where after a vehicle enters the parking lot, it drives to the exit within the free time set by the parking lot. The parking lot system will recognize that the vehicle has not incurred any fees and will lift the barrier to let it go. However, the vehicle does not actually leave the parking lot but is returned to the parking lot. As a result, when the vehicle leaves the parking lot again, the entry information cannot be found and normal charges cannot be made, causing chaos in the parking lot management. Summary of the invention

[0003] The technical problem to be solved by the present invention is: the present invention provides a method and system for detecting vehicles leaving the parking lot and turning back, so as to detect vehicles leaving the parking lot and turning back, and optimize the management of the parking lot.

[0004] In order to solve the above technical problems, the technical solution adopted by the present invention is:

[0005] In a first aspect, the present invention provides a method for detecting a vehicle exiting and returning, comprising:

[0006] Receiving a first ground sensing signal of a first vehicle sensed by a first ground sensing coil, triggering a first camera to capture and identify the first vehicle, and obtaining first information of the first vehicle;

[0007] Obtain an entry record, match the first information with the entry record, and when the match is successful, determine whether the first vehicle has paid the fee. If so, generate an exit record and directly control the barrier to lift the bar to release the vehicle. Determine in real time whether a second ground sensing signal from the second ground sensing coil sensing the first vehicle is received. If the second ground sensing signal is not received and the first ground sensing signal disappears, the first vehicle is an exit and return vehicle, and the exit record is not saved. If the second ground sensing signal is received, trigger the second camera to capture and identify the first vehicle, and obtain the second information of the first vehicle. When the second ground sensing signal disappears and the first ground sensing signal does not disappear, determine whether the first information is the same as the second information. If so, the first vehicle is an exit and return vehicle, and the exit record is not saved.

[0008] The first ground sensing coil and the second ground sensing coil are ground sensing coils that the vehicle passes through in sequence according to the driving direction of the vehicle leaving the parking lot.

[0009] The beneficial effects of the present invention are as follows: the ground sensing coils that the vehicle passes through in sequence according to the driving direction of the vehicle leaving the parking lot, that is, the first ground sensing coil and the second ground sensing coil, realize the identification of the vehicle that turns back from the parking lot, which is simple and convenient, reduces the complexity, and when identifying the vehicle that turns back from the parking lot, the situation where the second ground sensing signal is not received and the first ground sensing signal disappears, that is, the situation where the vehicle retreats to the parking lot after pressing the first ground sensing coil, and the situation where the second ground sensing signal is received but the first ground sensing signal does not disappear when the second ground sensing signal disappears, that is, the situation where the vehicle returns to the parking lot after pressing the second ground sensing signal are all taken into consideration, thereby improving the comprehensiveness and accuracy of the judgment of the vehicle that turns back from the parking lot, and optimizing the management of the parking lot.

[0010] Optionally, when the matching is successful, determining whether the first vehicle has paid the fee includes:

[0011] When the match is successful, the current time is obtained and the entry time of the first vehicle is obtained from the entry record, and the stay time of the first vehicle is calculated according to the entry time and the current time. If the stay time is within the free time period, the first vehicle is assumed to have paid the fee. If the stay time is not within the free time period, a payment order is generated according to the stay time, and the first vehicle is allowed to pay according to the payment order.

[0012] Optionally, generating a payment order according to the stay time and allowing the first vehicle to pay according to the payment order includes:

[0013] Sending the payment order to the first vehicle, allowing the first vehicle to scan the code to pay according to the payment order;

[0014] and / or

[0015] A payment link is automatically generated according to the payment order, and the payment link is sent to the first vehicle, allowing the first vehicle to access the payment link for payment.

[0016] According to the above description, a variety of payment methods are provided to optimize the user experience.

[0017] Optionally, the method further includes: issuing an early warning to the vehicles that leave the vehicle and turn back.

[0018] According to the above description, it can be seen that through the early warning method, while reminding the vehicles leaving and returning in a standardized manner, the staff is warned to optimize the management of the parking lot.

[0019] Optionally, it also includes:

[0020] The exit-turnaround vehicle is marked, and the number of times the exit-turnaround vehicle is marked within a preset time period is counted. If the number of times the mark exceeds a first threshold, the exit-turnaround vehicle is included in a high-risk list.

[0021] According to the above description, the exit and return vehicles whose marking times exceed the first threshold within the preset time period are included in the high-risk list, which ensures the accuracy of the high-risk list and facilitates the subsequent optimization of parking lot management.

[0022] In a second aspect, the present invention provides a vehicle exit return detection system, comprising:

[0023] A receiving module, configured to receive a first ground sensing signal of a first vehicle sensed by a first ground sensing coil, trigger a first camera to capture and identify the first vehicle, and obtain first information of the first vehicle; the first ground sensing coil and the second ground sensing coil are ground sensing coils that pass by in sequence according to the driving direction of the vehicle leaving the parking lot;

[0024] The detection module obtains the entry record and matches the first information with the entry record. When the match is successful, it is determined whether the first vehicle has paid the fee. If so, an exit record is generated and the barrier is directly controlled to lift the bar to release the vehicle. It is determined in real time whether a second ground sensing signal from the second ground sensing coil to sense the first vehicle is received. If the second ground sensing signal is not received and the first ground sensing signal disappears, the first vehicle is an exit and return vehicle, and the exit record is not saved. If the second ground sensing signal is received, the second camera is triggered to capture and identify the first vehicle, and the second information of the first vehicle is obtained. When the second ground sensing signal disappears and the first ground sensing signal does not disappear, it is determined whether the first information is the same as the second information. If so, the first vehicle is an exit and return vehicle, and the exit record is not saved.

[0025] The beneficial effects of the present invention are as follows: the ground sensing coils that the vehicle passes through in sequence according to the driving direction of the vehicle leaving the parking lot, that is, the first ground sensing coil and the second ground sensing coil, realize the identification of the vehicle that turns back from the parking lot, which is simple and convenient, reduces the complexity, and when identifying the vehicle that turns back from the parking lot, the situation where the second ground sensing signal is not received and the first ground sensing signal disappears, that is, the situation where the vehicle retreats to the parking lot after pressing the first ground sensing coil, and the situation where the second ground sensing signal is received but the first ground sensing signal does not disappear when the second ground sensing signal disappears, that is, the situation where the vehicle returns to the parking lot after pressing the second ground sensing signal are all taken into consideration, thereby improving the comprehensiveness and accuracy of the judgment of the vehicle that turns back from the parking lot, and optimizing the management of the parking lot.

[0026] Optionally, the detection module includes:

[0027] The payment module is used to obtain the current time and the entry time of the first vehicle from the entry record when the match is successful, calculate the stay time of the first vehicle according to the entry time and the current time, and if the stay time is within the free time period, it is assumed that the first vehicle has paid the fee; if the stay time is not within the free time period, a payment order is generated according to the stay time, and the first vehicle is allowed to pay according to the payment order.

[0028] Optionally, the payment module is specifically:

[0029] Sending the payment order to the first vehicle, allowing the first vehicle to scan the code to pay according to the payment order;

[0030] and / or

[0031] A payment link is automatically generated according to the payment order, and the payment link is sent to the first vehicle, allowing the first vehicle to access the payment link for payment.

[0032] According to the above description, a variety of payment methods are provided to optimize the user experience.

[0033] Optionally, it also includes:

[0034] The early warning module is used to issue an early warning to the vehicles that leave the vehicle and turn around.

[0035] According to the above description, it can be seen that through the early warning method, while reminding the vehicles leaving and returning in a standardized manner, the staff is warned to optimize the management of the parking lot.

[0036] Optionally, it also includes:

[0037] The high-risk list module is used to mark the exit-return vehicle and count the number of times the exit-return vehicle is marked within a preset time period. If the number of times exceeds a first threshold, the exit-return vehicle is included in the high-risk list.

[0038] According to the above description, the exit and return vehicles whose marking times exceed the first threshold within the preset time period are included in the high-risk list, which ensures the accuracy of the high-risk list and facilitates the subsequent optimization of parking lot management. BRIEF DESCRIPTION OF THE DRAWINGS

[0039] Figure 1 A flow chart of a method for detecting a vehicle exiting and turning back according to an embodiment of the present invention;

[0040] Figure 2 It is a schematic diagram of the overall process of a method for detecting a vehicle exit and return according to an embodiment of the present invention;

[0041] Figure 3The present invention is a schematic structural diagram of a vehicle exit and return detection system according to an embodiment of the present invention.

[0042] [Description of Reference Numerals]

[0043] 1. A detection system for vehicle exit and return;

[0044] 2. Receiving module;

[0045] 3. Detection module; 31. Payment module;

[0046] 4. Early warning module;

[0047] 5. High-risk list module. DETAILED DESCRIPTION

[0048] In order to better understand the above technical solution, exemplary embodiments of the present invention will be described in more detail below with reference to the accompanying drawings. Although exemplary embodiments of the present invention are shown in the accompanying drawings, it should be understood that the present invention can be implemented in various forms and should not be limited by the embodiments described herein. On the contrary, these embodiments are provided to enable a clearer and more thorough understanding of the present invention and to fully convey the scope of the present invention to those skilled in the art.

[0049] Embodiment 1

[0050] Please refer to Figure 1 to Figure 2 The present invention provides a method for turning back a vehicle after exiting the vehicle, comprising the steps of:

[0051] S1, receiving a first ground sensing signal of a first vehicle sensed by a first ground sensing coil, triggering a first camera to capture and identify the first vehicle, and obtaining first information of the first vehicle;

[0052] In this embodiment, the first ground sensor coil and the second ground sensor coil are ground sensor coils that pass in sequence according to the driving direction of the vehicle leaving the parking lot. Specifically, the first ground sensor coil is located at the exit lane in the parking lot, and the second ground sensor coil is located directly below the gate railing of the exit lane. The distance between the first ground sensor coil and the second ground sensor coil is [3,4] meters. Preferably, the distance between the first ground sensor coil and the second ground sensor coil is 3.5 meters. The specific distance can be set according to actual conditions.

[0053] In this embodiment, if Figure 2 As shown, when the first vehicle runs over the first ground sensing coil, the first ground sensing coil senses the first vehicle to generate and send a first ground sensing signal. When the first ground sensing signal is received, the first camera is triggered to capture and identify the first vehicle, thereby obtaining the vehicle information of the first vehicle, wherein the vehicle information includes but is not limited to: license plate number, owner information, entry time and departure time.

[0054] S2. Obtain the entry record, match the first information with the entry record, and when the match is successful, determine whether the first vehicle has paid the fee. If so, generate an exit record and directly control the barrier to lift the bar to release it, and determine in real time whether the second ground sensing signal of the first vehicle sensed by the second ground sensing coil is received. If the second ground sensing signal is not received and the first ground sensing signal disappears, the first vehicle is an exit and return vehicle, and the exit record is not saved. If the second ground sensing signal is received, the second camera is triggered to capture and identify the first vehicle, and the second information of the first vehicle is obtained. When the second ground sensing signal disappears and the first ground sensing signal does not disappear, determine whether the first information is the same as the second information. If so, the first vehicle is an exit and return vehicle, and the exit record is not saved.

[0055] In this embodiment, if Figure 2 As shown, once a vehicle enters the parking lot, an entry record of the vehicle will be generated. The entry record records information including but not limited to: the license plate number and the entry time. The first information obtained in step S1 is matched with the entry record. If the match is successful, it is determined whether the first vehicle has paid the fee. If so, an exit record of the first vehicle will be generated and the barrier will be directly controlled to lift the bar to release it. Since the second ground sensing coil is located directly below the barrier of the exit lane, if the first vehicle leaves in the direction of leaving the parking lot, it will press the second ground sensing coil. The second ground sensing coil will sense the first vehicle to generate and send a second ground sensing signal. Receiving the second ground sensing signal will trigger the second camera to capture and identify the first vehicle, and obtain the second information of the first vehicle. When the second ground sensing signal disappears and the first ground sensing signal does not disappear, that is, the first vehicle presses the second ground sensing coil and then When the first vehicle backs up to the parking lot, the first information is compared with the second information to determine whether they are the same. If they are the same, the first vehicle is an exit and return vehicle, and the exit record is not saved. When the second ground sensing signal has not disappeared but the first ground sensing signal disappears, the first vehicle is a normal departure vehicle, and the exit record of the first vehicle is saved. If the first vehicle does not leave in the driving direction of leaving the parking lot but backs up to the parking lot, the second ground sensing coil will not be pressed, that is, the second ground sensing signal will not be generated, and the second ground sensing signal will not be received, and the first ground sensing signal will disappear. Therefore, when the second ground sensing signal is not received and the first ground sensing signal disappears, the first vehicle is an exit and return vehicle, and the exit record is not saved. The second camera can be the same camera as the first camera, or can be two different cameras, and can be set specifically according to actual conditions.

[0056] At this time, when the matching is successful in step S2, it is determined whether the first vehicle has paid the fee, including:

[0057] S21. When the match is successful, the current time is obtained and the entry time of the first vehicle is obtained from the entry record, and the stay time of the first vehicle is calculated according to the entry time and the current time. If the stay time is within the free time period, the first vehicle is assumed to have paid the fee. If the stay time is not within the free time period, a payment order is generated according to the stay time, and the first vehicle is allowed to pay according to the payment order.

[0058] At this time, the step S21 generates a payment order according to the stay time, and allows the first vehicle to pay according to the payment order, including:

[0059] S211, sending the payment order to the first vehicle, allowing the first vehicle to scan the code to pay according to the payment order;

[0060] and / or

[0061] S212 automatically generates a payment link according to the payment order, sends the payment link to the first vehicle, and allows the first vehicle to access the payment link for payment.

[0062] In this embodiment, if Figure 2 As shown, the stay time of the first vehicle is calculated by obtaining the current time and the entry time of the first vehicle in the entry record. If the stay time is within the free time period, the first vehicle is deemed to have paid the fee. Otherwise, a payment order is generated based on the stay time, allowing the first vehicle to scan the code and pay based on the payment order, or to pay based on the payment link generated by the payment order.

[0063] In this embodiment, the identified vehicles that have turned back from the exit are subjected to early warning processing and statistical processing, and the specific steps are as follows:

[0064] Early warning processing: Issue early warning to the vehicles that exit and return.

[0065] In this embodiment, if Figure 2 As shown, a warning will be issued for the vehicles that are judged to be leaving the parking lot and turning back, such as by broadcasting, LED display screens, etc., to warn the vehicles of leaving the parking lot and turning back, and remind the parking lot staff to manage them.

[0066] Statistical processing: marking the exit-turnaround vehicle, and counting the number of times the exit-turnaround vehicle is marked within a preset time period; if the number of times exceeds a first threshold, the exit-turnaround vehicle is included in a high-risk list.

[0067] In this embodiment, if Figure 2As shown, the vehicles that leave the vehicle and turn around will be marked, so as to count the number of times the vehicles are marked within the preset time period. If the number of times exceeds the first threshold, the vehicles that leave the vehicle and turn around will be included in the high-risk list, where the preset time period can be the week, the month, etc., and the first threshold is 5 times. The specific preset time period and the first threshold can be adjusted according to the actual situation.

[0068] Embodiment 2

[0069] Please refer to Figure 3 The present invention provides a vehicle exit and return detection system 1, comprising: a receiving module 2, a detection module 3, a payment module 31, an early warning module 4 and a high-risk list module 5.

[0070] The receiving module 2 is used to receive a first ground sensing signal of a first vehicle sensed by a first ground sensing coil, trigger a first camera to capture and identify the first vehicle, and obtain first information of the first vehicle; the first ground sensing coil and the second ground sensing coil are ground sensing coils that pass by in sequence according to the driving direction of the vehicle leaving the parking lot;

[0071] Detection module 3 obtains the entry record, matches the first information with the entry record, and when the match is successful, determines whether the first vehicle has paid the fee. If so, generates an exit record and directly controls the barrier to lift the bar to release the vehicle. It determines in real time whether the second ground sensing signal of the first vehicle sensed by the second ground sensing coil is received. If the second ground sensing signal is not received and the first ground sensing signal disappears, the first vehicle is an exit and return vehicle, and the exit record is not saved. If the second ground sensing signal is received, the second camera is triggered to capture and identify the first vehicle, and the second information of the first vehicle is obtained. When the second ground sensing signal disappears and the first ground sensing signal does not disappear, it is determined whether the first information is the same as the second information. If so, the first vehicle is an exit and return vehicle, and the exit record is not saved.

[0072] Specifically, the detection module 3 includes:

[0073] The payment module 31 is used to obtain the current time and the entry time of the first vehicle from the entry record when the match is successful, calculate the stay time of the first vehicle according to the entry time and the current time, and if the stay time is within the free time period, it is assumed that the first vehicle has paid the fee; if the stay time is not within the free time period, a payment order is generated according to the stay time, and the first vehicle is allowed to pay according to the payment order.

[0074] Specifically, the payment module 31 is:

[0075] Sending the payment order to the first vehicle, allowing the first vehicle to scan the code to pay according to the payment order;

[0076] and / or

[0077] A payment link is automatically generated according to the payment order, and the payment link is sent to the first vehicle, allowing the first vehicle to access the payment link for payment.

[0078] Specifically, the warning module 4 is used to warn the exit and return vehicles.

[0079] Specifically, the high-risk list module 5 is used to mark the exit-return vehicle and count the number of times the exit-return vehicle is marked within a preset time period. If the number of times exceeds a first threshold, the exit-return vehicle is included in the high-risk list.

[0080] Since the system / device described in the above embodiments of the present invention is a system / device used to implement the method of the above embodiments of the present invention, a person skilled in the art can understand the specific structure and deformation of the system / device based on the method described in the above embodiments of the present invention, and thus will not be described in detail here. All systems / devices used in the method of the above embodiments of the present invention belong to the scope of protection of the present invention.

[0081] It will be appreciated by those skilled in the art that embodiments of the present invention may be provided as methods, systems or computer program products. Therefore, the present invention may take the form of a complete hardware embodiment, a complete software embodiment, or an embodiment combining software and hardware. Furthermore, the present invention may take the form of a computer program product implemented on one or more computer-usable storage media (including but not limited to disk storage, CD-ROM, optical storage, etc.) containing computer-usable program code.

[0082] The present invention is described with reference to the flowcharts and / or block diagrams of the methods, devices (systems) and computer program products according to the embodiments of the present invention. It should be understood that each process and / or box in the flowchart and / or block diagram, as well as the combination of the processes and / or boxes in the flowchart and / or block diagram, can be implemented by computer program instructions.

[0083] It should be noted that in the claims, any reference numerals placed between brackets shall not be construed as limiting the claims. The word "comprising" does not exclude the presence of components or steps not listed in the claims. The word "a" or "an" preceding a component does not exclude the presence of a plurality of such components. The invention may be implemented by means of hardware comprising several different components and by means of a suitably programmed computer. In the claims enumerating several means, several of these means may be embodied by the same hardware. The use of the words first, second, third, etc., is for convenience of expression only and does not indicate any order. These words may be understood as part of the component name.

[0084] In addition, it should be noted that, in the description of this specification, the description of the terms "one embodiment", "some embodiments", "embodiment", "example", "specific example" or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, unless they are contradictory.

[0085] Although the preferred embodiments of the present invention have been described, those skilled in the art may make other changes and modifications to these embodiments after knowing the basic creative concept. Therefore, the claims should be interpreted as including the preferred embodiments and all changes and modifications falling within the scope of the present invention.

[0086] Obviously, those skilled in the art can make various modifications and variations to the present invention without departing from the spirit and scope of the present invention. Thus, if these modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention should also include these modifications and variations.

Claims

1. A method for detecting a vehicle exiting and returning, characterized in that: include: Receiving a first ground sensing signal of a first vehicle sensed by a first ground sensing coil, triggering a first camera to capture and identify the first vehicle, and obtaining first information of the first vehicle; Obtain an entry record, match the first information with the entry record, and when the match is successful, determine whether the first vehicle has paid the fee. If so, generate an exit record and directly control the barrier to lift the bar to release the vehicle. Determine in real time whether a second ground sensing signal from the second ground sensing coil sensing the first vehicle is received. If the second ground sensing signal is not received and the first ground sensing signal disappears, the first vehicle is an exit and return vehicle, and the exit record is not saved. If the second ground sensing signal is received, trigger the second camera to capture and identify the first vehicle, and obtain the second information of the first vehicle. When the second ground sensing signal disappears and the first ground sensing signal does not disappear, determine whether the first information is the same as the second information. If so, the first vehicle is an exit and return vehicle, and the exit record is not saved. The first ground sensing coil and the second ground sensing coil are ground sensing coils that the vehicle passes through in sequence according to the driving direction of the vehicle leaving the parking lot.

2. A method for detecting a vehicle exiting and returning according to claim 1, characterized in that: When the matching is successful, determining whether the first vehicle has paid the fee includes: When the match is successful, the current time is obtained and the entry time of the first vehicle is obtained from the entry record, and the stay time of the first vehicle is calculated according to the entry time and the current time. If the stay time is within the free time period, the first vehicle is assumed to have paid the fee. If the stay time is not within the free time period, a payment order is generated according to the stay time, and the first vehicle is allowed to pay according to the payment order.

3. A method for detecting a vehicle exiting and returning as claimed in claim 2, characterized in that: Generating a payment order according to the stay time and allowing the first vehicle to pay according to the payment order includes: Sending the payment order to the first vehicle, allowing the first vehicle to scan the code to pay according to the payment order; and / or A payment link is automatically generated according to the payment order, and the payment link is sent to the first vehicle, allowing the first vehicle to access the payment link for payment.

4. A method for detecting a vehicle exiting and returning according to claim 1, characterized in that: Also includes: An early warning is issued to the vehicles that leave the vehicle and turn back.

5. A method for detecting a vehicle exiting and returning according to claim 1, characterized in that: Also includes: The exit-turnaround vehicle is marked, and the number of times the exit-turnaround vehicle is marked within a preset time period is counted. If the number of times the mark exceeds a first threshold, the exit-turnaround vehicle is included in a high-risk list.

6. A vehicle exit return detection system, characterized in that: include: A receiving module, configured to receive a first ground sensing signal of a first vehicle sensed by a first ground sensing coil, trigger a first camera to capture and identify the first vehicle, and obtain first information of the first vehicle; The first ground sensing coil and the second ground sensing coil are ground sensing coils that the vehicle passes through in sequence according to the driving direction of the vehicle leaving the parking lot; A detection module is used to obtain an entry record, match the first information with the entry record, and when the match is successful, determine whether the first vehicle has paid the fee. If so, generate an exit record and directly control the barrier to lift the bar to release the vehicle. Determine in real time whether a second ground sensing signal from a second ground sensing coil sensing the first vehicle is received. If the second ground sensing signal is not received and the first ground sensing signal disappears, the first vehicle is an exit and return vehicle, and the exit record is not saved. If the second ground sensing signal is received, the second camera is triggered to capture and identify the first vehicle, and the second information of the first vehicle is obtained. When the second ground sensing signal disappears and the first ground sensing signal does not disappear, determine whether the first information is the same as the second information. If so, the first vehicle is an exit and return vehicle, and the exit record is not saved.

7. A vehicle exit return detection system as claimed in claim 6, characterized in that: The detection module comprises: The payment module is used to obtain the current time and the entry time of the first vehicle from the entry record when the match is successful, calculate the stay time of the first vehicle according to the entry time and the current time, and if the stay time is within the free time period, it is assumed that the first vehicle has paid the fee; if the stay time is not within the free time period, a payment order is generated according to the stay time, and the first vehicle is allowed to pay according to the payment order.

8. A vehicle exit and return detection system as claimed in claim 7, characterized in that: The payment module is specifically: Sending the payment order to the first vehicle, allowing the first vehicle to scan the code to pay according to the payment order; and / or A payment link is automatically generated according to the payment order, and the payment link is sent to the first vehicle, allowing the first vehicle to access the payment link for payment.

9. A vehicle exit and return detection system as claimed in claim 6, characterized in that: Also includes: The early warning module is used to issue an early warning to the vehicles that leave the vehicle and turn back.

10. A vehicle exit and return detection system as claimed in claim 6, characterized in that: Also includes: The high-risk list module is used to mark the exit-return vehicle and count the number of times the exit-return vehicle is marked within a preset time period. If the number of times exceeds a first threshold, the exit-return vehicle is included in the high-risk list.

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