Highway charging monitoring method and monitoring system

Abstract

The invention relates to the technical field of vehicle charging, in particular to a highway charging monitoring method and monitoring system, and the monitoring method comprises the steps: obtaining the vehicle image information of a vehicle, and obtaining the entering position information of the vehicle; obtaining entering license plate information of the vehicle according to the vehicle image information, if the entering license plate information is not obtained, obtaining first appearance information of the vehicle based on the vehicle image information, detecting and recognizing the vehicle image information of the vehicle in the supplementary recognition section, and obtaining second appearance information based on the vehicle image information; and when the second appearance information is the same as the first appearance information, detecting and identifying the entering license plate information of the vehicle, detecting and identifying the vehicle entering the exit section of the expressway to obtain the leaving license plate information and leaving position information of the vehicle, calculating the driving path of the vehicle, calculating the fee of the vehicle, and forming bill information. Therefore, the problem that the passing efficiency of the expressway is low is solved.

Description

Technical Field

[0001] The present invention relates to the technical field of vehicle charging, and in particular to a highway charging monitoring method and a monitoring system. Background Art

[0002] Highways are an important part of the modern transportation network, carrying a large amount of traffic and cargo transportation needs. In order to maintain the operating order of highways, improve toll collection efficiency and ensure road safety, it is necessary to monitor the charging of vehicles on highways. The traditional highway charging method is mainly based on toll stations, which requires manual operation and vehicle queuing, which is not only inefficient, but also easily causes traffic congestion and safety hazards.

[0003] Although the use of the ETC system has accelerated the traffic efficiency to a certain extent, the ETC system needs to rely on toll booths for identification and release. When passing through, vehicles still need to slow down or even stop to complete identification, which still cannot effectively improve the traffic efficiency. ETC requires the installation of special identification equipment on the vehicle. At the same time, in actual use, especially at the exit of the highway, most vehicles need to pay the fee manually. Even if ETC is used, there are cases of "using ETC" and escaping payment, which makes the traffic efficiency insufficient and causes congestion. For the scheme of charging passing vehicles through license plate recognition technology in the prior art, the vehicle usually needs to stop to identify the license plate, and will be released only after identification, which also has the problem of insufficient traffic efficiency. Summary of the invention

[0004] In order to solve the problem of low expressway traffic efficiency, the present invention provides an expressway charging monitoring method and a monitoring system.

[0005] The first aspect of the present invention provides a highway toll monitoring method, comprising: at the entrance of the highway, a first main identification segment and at least one supplementary identification segment are sequentially arranged along the path of the highway; step S1, detecting and identifying a vehicle passing through and entering the first main identification segment to obtain vehicle image information of the vehicle, and obtaining the vehicle entry position information based on the position of the first main identification segment; step S2, obtaining the vehicle entry license plate information according to the vehicle image information, and judging whether the entry license plate information is obtained, if the entry license plate information can be obtained, executing step S4, if the entry license plate information is not obtained, executing step S3; step S3, obtaining the first appearance information of the vehicle based on the vehicle image information, and the first appearance information of the vehicle is obtained. The first appearance information is sent to the supplementary identification section, in which the vehicle image information of the vehicle is detected and identified, and the second appearance information is obtained based on the vehicle image information, and the second appearance information is matched with the first appearance information. When the second appearance information is the same as the first appearance information, the entry license plate information of the vehicle is detected and identified; step S4, the vehicle entering the highway exit section is detected and identified to obtain the vehicle's exit license plate information and exit position information; step S5, the exit license plate information is compared with the entry license plate information to obtain the vehicle's entry position information, and the vehicle's driving path is calculated based on the entry position information and the exit position information, and the vehicle fee is calculated based on the driving path, and billing information is generated.

[0006] In some embodiments, at the entrance of the highway, multiple access ramps connected to the main road of the highway are provided, and multiple supplementary identification segments are provided, which are respectively arranged in the access ramps; at least one supplementary identification segment is arranged in each access ramp.

[0007] In some embodiments, step S4 further includes: at the exit section of the expressway, a second main identification section and at least one secondary identification section are sequentially arranged along the path of the expressway; step S41, detecting and identifying vehicles passing through and entering the second main identification section to obtain vehicle image information of the vehicle; step S42, based on the vehicle image information recognition and successfully obtaining the exit license plate information, executing step S45, if the exit license plate information is not successfully obtained, obtaining the third appearance information of the vehicle based on the vehicle image information, and sending the third appearance information to the next secondary identification section arranged along the path of the expressway; step S43, in the secondary identification section passed by the vehicle, based on the third appearance information, detecting and identifying the vehicle passing through and entering the second main identification section to obtain vehicle image information of the vehicle; step S44, detecting and identifying the vehicle passing through and entering the second main identification section to obtain vehicle image information of the vehicle; step S45 ... The passing vehicles are detected and identified to obtain the fourth appearance information of the vehicle, and the third appearance information is matched with the fourth appearance information. When the third appearance information is the same as the fourth appearance information, the departure license plate information of the vehicle is detected and identified, and step S43 is repeated until the departure license plate information is obtained or the vehicle passes through all the secondary identification segments; step S44, judging whether the departure license plate information is obtained, if the departure license plate information is obtained, step S45 is executed, if the departure license plate information is not obtained, the third appearance information is uploaded to the database and a prompt message is issued; step S45, based on the position of the second main identification segment of the departure license plate information obtained, the departure position information of the vehicle is obtained.

[0008] In some embodiments, step S3 further includes: based on the first appearance information of the vehicle for which the entry license plate information is not obtained, sending the first appearance information to a supplementary identification segment set in a possible traveling direction of the vehicle.

[0009] In some embodiments, based on at least one of the entry license plate information and the exit license plate information and based on the vehicle registration information, the type information of the vehicle is obtained, and based on the type information, the corresponding billing rules are matched, and the vehicle fee is calculated according to the matched billing rules.

[0010] In some embodiments, step S3 further includes: determining whether the entry license plate information is obtained, and if the exit license plate information is not obtained, uploading the first appearance information to the database and issuing a prompt message.

[0011] In some embodiments, an information processing device is included, which is used to execute the highway toll monitoring method of any one of claims 1 to 6 above; at the entrance of the highway, a first main identification segment and at least one supplementary identification segment are sequentially arranged along the path of the highway; a first camera group is arranged in the first main identification segment, and a second camera group is arranged in the supplementary identification segment, and the first camera group and the second camera group are respectively communicated with the information processing device; the first camera group is used to obtain the first appearance information and entry license plate information of the vehicle passing through the first main identification segment, and the first camera group also includes a positioning component for obtaining vehicle image information of the vehicle; the second camera group includes a low-definition camera and a high-definition camera, the low-definition camera is used to detect and identify the second appearance information of the vehicle passing through the supplementary identification segment, and the high-definition camera is used to detect and identify the entry license plate information of the vehicle.

[0012] In some embodiments, the information processing device is configured to: detect and identify the second appearance information by a low-definition camera, match the second appearance information with the first appearance information, and when the second appearance information is the same as the first appearance information, drive the high-definition camera to detect and identify the vehicle's entry license plate information.

[0013] In some embodiments, the first camera group includes a first camera and a second camera, the first camera is used to shoot the front side of the vehicle to obtain a first license plate image, and the second camera is used to shoot the rear side of the vehicle to obtain a second license plate image. The information processing device can process the first license plate image and the second license plate image and obtain the entry license plate information.

[0014] In some embodiments, a fast passage and a normal passage are provided at the entrance of the expressway, and a limited elevated frame is provided at the entrance of the fast passage, and the height of the limited elevated frame is set to allow only small vehicles to pass through.

[0015] To solve the problem of low traffic efficiency on expressways, the present invention has the following advantages:

[0016] With the help of image recognition technology, the identified license plate information is used as a means of identifying the vehicle. Due to the uniqueness of the license plate information, vehicles can be effectively distinguished. Even vehicles of the same model can be accurately distinguished. At the same time, with the help of the first main recognition section and the supplementary recognition section set at the entrance section, it is possible to cope with the failure of obtaining the license plate information due to emergencies or special circumstances. For the situation where the entry license plate information cannot be identified in the first main recognition section, the first appearance information obtained is used as the recognition reference. In the subsequent supplementary recognition section, the second appearance information is obtained and compared with the first appearance information, so as to find the vehicle whose license plate information cannot be obtained in the first main recognition section, and re-obtain its entry license plate information; when the entry license plate information is obtained, the entry position information of the vehicle entering the highway can be obtained according to the setting position of the acquisition device (such as a camera). Similarly, the exit position information of the vehicle can be obtained. The system can automatically calculate the vehicle's driving path according to the highway network planning, and further calculate the fee. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 A flowchart of a highway toll monitoring method according to an embodiment is shown;

[0018] Figure 2 A flow chart showing step S4 of an embodiment is shown;

[0019] Figure 3 A schematic diagram showing the connection relationship of a highway toll monitoring system according to an embodiment is shown.

[0020] Figure numerals: 10 - information processing device; 20 - first camera group; 21 - first camera; 22 - second camera; 30 - second camera group; 31 - low-definition camera; 32 - high-definition camera. DETAILED DESCRIPTION

[0021] The present disclosure will now be discussed with reference to several exemplary embodiments. It should be understood that these embodiments are discussed only to enable those skilled in the art to better understand and thus implement the present disclosure, rather than implying any limitation on the scope of the present disclosure.

[0022] As used herein, the term "including" and its variants are to be interpreted as open-ended terms meaning "including but not limited to". The term "based on" is to be interpreted as "based at least in part on". The terms "one embodiment" and "an embodiment" are to be interpreted as "at least one embodiment". The term "another embodiment" is to be interpreted as "at least one other embodiment". The orientation or position relationship indicated by the terms "upper", "lower", "left", "right", "front", "back", "top", "bottom", "inner", "outer", "vertical", "horizontal", "lateral", "longitudinal" and the like is based on the orientation or position relationship shown in the accompanying drawings. These terms are mainly for better describing the present application and its embodiments, and are not used to limit the indicated devices, elements or components to have a specific orientation, or to be constructed and operated in a specific orientation. In addition, in addition to being used to indicate an orientation or position relationship, some of the above terms may also be used to indicate other meanings, such as the term "upper" may also be used to indicate a certain dependency or connection relationship in some cases. For those of ordinary skill in the art, the specific meanings of these terms in this application can be understood according to the specific circumstances. In addition, the terms "install", "set", "provided with", "connected" and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral structure; it can be a mechanical connection, or an electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, or it can be an internal connection between two devices, elements or components. For those of ordinary skill in the art, the specific meanings of the above terms in this application can be understood according to the specific circumstances. In addition, the terms "first", "second", etc. are mainly used to distinguish different devices, elements or components (the specific types and structures may be the same or different), and are not used to indicate or imply the relative importance and quantity of the indicated devices, elements or components. Unless otherwise specified, "plurality" means two or more.

[0023] The first aspect of the present invention discloses a highway toll monitoring method, such as Figure 1As shown, it may include: at the entrance of the expressway, a first main recognition segment and at least one supplementary recognition segment are sequentially arranged along the path of the expressway; step S1, detecting and recognizing a vehicle passing through and entering the first main recognition segment to obtain vehicle image information of the vehicle, and obtaining entry position information of the vehicle based on the position of the first main recognition segment; step S2, obtaining entry license plate information of the vehicle according to the vehicle image information, judging whether the entry license plate information is obtained, if the entry license plate information can be obtained, executing step S4, if the entry license plate information is not obtained, executing step S3; step S3, obtaining first appearance information of the vehicle based on the vehicle image information, and sending the first appearance information to the supplementary recognition segment , in the supplementary identification section, the vehicle image information of the vehicle is detected and identified, second appearance information is obtained based on the vehicle image information, the second appearance information is matched with the first appearance information, and when the second appearance information is the same as the first appearance information, the entry license plate information of the vehicle is detected and identified; step S4, the vehicle entering the highway exit section is detected and identified to obtain the vehicle's departure license plate information and departure position information; step S5, the departure license plate information is compared with the entry license plate information to obtain the vehicle's entry position information, the vehicle's driving path is calculated based on the entry position information and the departure position information, the vehicle's fee is calculated based on the driving path, and billing information is generated.

[0024] In the above technical solution, with the help of image recognition technology, the identified license plate information is used as a means of identifying the vehicle. Due to the uniqueness of the license plate information, the vehicles can be effectively distinguished, even if they are vehicles of the same model, they can be accurately distinguished. At the same time, with the help of the first main recognition section and the supplementary recognition section set at the entrance section, it is possible to cope with the failure of obtaining the license plate information due to emergencies or special circumstances. For the situation where the entry license plate information cannot be identified in the first main recognition section, the first appearance information obtained is used as the recognition reference. In the subsequent supplementary recognition section, the second appearance information is obtained and compared with the first appearance information, so as to find the vehicle whose license plate information cannot be obtained in the first main recognition section, and re-acquire its entry license plate information; when the entry license plate information is obtained, the entry position information of the vehicle entering the highway can be obtained according to the setting position of the acquisition device (such as a camera). Similarly, the exit position information of the vehicle can be obtained. The system can automatically calculate the vehicle's driving path according to the highway network planning, and further calculate the fee.

[0025] It should be noted that, based on the current highway design, the first main identification segment can be set at the existing toll station. After passing the toll station, since vehicles may need to enter the highway in different directions, the highway and the urban road are usually connected by multiple one-way ramps. Correspondingly, the supplementary identification segments can be set on these ramps respectively. The main part of the highway will gather vehicles entering from various highway entrances, which will increase the workload of detection and identification and put forward higher requirements for the detection equipment. Therefore, the first main identification segment and the supplementary identification segment are not suitable for being set on the main road of the highway. The entry license plate information and the exit license plate information refer to the license plate number of the vehicle entering the highway through the entrance. The first appearance information and the second appearance information can be vehicle appearance information composed of the shape, pattern and color of the vehicle.

[0026] Vehicle image information must at least include a combination of the vehicle's shape, color, pattern and other external elements. The combination of these elements can constitute the vehicle's external features, and must also include the image of the license plate hung on the vehicle. The detection and recognition of vehicle image information can be obtained through a camera, or laser radar and other methods can be added to obtain information at the same time. For the acquisition of the entry license plate information, the license plate information can be obtained by image recognition combined with an algorithm. Since there is a considerable distance between the camera and the vehicle, when obtaining vehicle image information, especially when it is necessary to extract the entry license plate information, it may be interfered by many factors, such as the vehicle's high speed, weather factors (strong wind, heavy rain, etc.) resulting in the acquisition of vehicle image information being blurred, or obstacles (such as flying birds, or garbage blown away by the wind, etc.) causing obstruction, and the vehicle is traveling at a high speed, while the camera's shooting range is limited, so that the vehicle will quickly pass through the camera's shooting range. Therefore, even a short-term obstruction will result in failure to obtain information. If the acquisition fails, there will be no information to be obtained. It is impossible to know the starting point of a vehicle entering the expressway. Therefore, multiple supplementary recognition sections are set. Even if the vehicle image information is relatively vague, or the acquisition of the entry license plate information fails due to obstacles, etc., it is still possible to obtain information such as the shape and color of the vehicle, thereby forming the first appearance information of the vehicle. The vehicles that fail to obtain the entry license plate information should only be a small part of all the vehicles entering the expressway. In the supplementary recognition section, first find the vehicle whose entry license plate information cannot be identified based on the first appearance information obtained, and then detect and identify the entry license plate information of the vehicle, which can effectively reduce the amount of data acquisition and processing, thereby reducing the cost of equipment and hardware, and improving the efficiency of obtaining information. At the same time, since the device for acquiring vehicle image information can be a fixed device, then based on the location of the device, it is possible to know where the vehicle enters the expressway, and combined with the expressway network, find the expressway entry point closest to that place, and it can be considered that the vehicle enters the expressway from this entry point. At least one supplementary identification segment means that after the first main identification segment, if the road branches, one or more supplementary identification segments can be set in sequence in each branch along the extension direction of the path. The specific setting can be based on actual conditions. If there is no branch road, it is only necessary to set one or more supplementary identification segments along the extension direction of the road.

[0027] For the exit section of the highway, one or more cameras can be set up to obtain the vehicle's exit license plate information, and the exit location information can be determined by the location of the device that obtains the exit license plate information. Based on the above information, the vehicle's driving trajectory can be determined in combination with the highway network to calculate the vehicle's fees. As for the collection of fees, due to the uniqueness of the license plate number, the license plate number can be associated with a bank account and collected directly, or the bill can be pushed to the car owner through the system for notification and collection of fees.

[0028] As a specific implementation method, at the entrance of the expressway, there are multiple access ramps connected to the main road of the expressway, and multiple supplementary identification segments are provided, and are respectively provided in the access ramps; at least one supplementary identification segment is provided in each of the access ramps. Since all vehicles in the access ramps are vehicles that have just entered the expressway, it is possible to effectively distinguish vehicles that have just entered the expressway. Identification here can reduce the number of devices, and since it is not necessary to identify all vehicles traveling on the expressway, the amount of data processing can also be reduced, eliminating the need for secondary detection of vehicles that have already entered the expressway. Of course, the supplementary identification segment can also be set on the main part of the expressway, and all vehicles can be identified, so that the vehicle can be tracked throughout the entire journey, and the calculated driving path can be more accurate.

[0029] For vehicles driving to the exit section of the expressway, similar to the entrance of the expressway, such as Figure 2 As shown, the step S4 also includes, at the exit section of the expressway, a second main identification section and at least one secondary identification section are sequentially arranged along the path of the expressway; step S41, detecting and identifying the vehicle passing through and entering the second main identification section to obtain vehicle image information of the vehicle; step S42, based on the vehicle image information, identifying and successfully obtaining the exit license plate information, then executing step S45, if the exit license plate information is not successfully obtained, obtaining the third appearance information of the vehicle according to the vehicle image information, and sending the third appearance information to the next secondary identification section arranged along the path of the expressway; step S43, in the secondary identification section through which the vehicle passes, detecting and identifying the passing vehicle based on the third appearance information Identify to obtain the fourth appearance information of the vehicle, and match the third appearance information with the fourth appearance information. When the third appearance information is the same as the fourth appearance information, detect and identify the departure license plate information of the vehicle, and repeat step S43 until the departure license plate information is obtained or the vehicle passes through all the secondary identification segments; step S44, determine whether the departure license plate information is obtained. If the departure license plate information is obtained, execute step S45. If the departure license plate information is not obtained, upload the third appearance information to the database and issue a prompt message; step S45, based on the position of the second main identification segment of the departure license plate information, obtain the departure position information of the vehicle.

[0030] Among them, since the exit of the expressway can be connected to the urban road through multiple ramps, so that vehicles in both directions on the expressway can leave the expressway here and enter other roads, therefore, multiple second main identification segments and secondary identification segments can be set respectively. For example, the second main identification segment can be set on the ramp, and the secondary identification segment can be set on the ramp or on the road after the ramps intersect. By using the set second main identification segment and secondary identification segment, similar to the entrance of the expressway, the second main identification segment can first identify and detect the passing vehicles to obtain the vehicle's exit license plate information. The exit license plate information refers to the license plate number of the vehicle that will leave the expressway from there. For vehicles that cannot successfully obtain the license plate number in the second main identification segment, they can be searched and identified in subsequent secondary identification segments based on the obtained third appearance information, so as to reduce equipment requirements and processing data load and improve the speed of recognition processing. For vehicles that maliciously cover the license plate, the normal identification method cannot obtain the license plate number in any case, or due to special reasons, the vehicle still cannot obtain the vehicle license plate information after passing all the second main identification sections and secondary identification sections. The third appearance information can be uploaded to the database, and a prompt message can be issued for manual processing by the staff. The database is used to store the uploaded third appearance information and provide it for the staff to retrieve, and the prompt message can be an alarm or a simple reminder to remind the staff that there are abnormal unrecognizable vehicles that require manual intervention.

[0031] Similar to the above situation, at the entrance of the expressway, even if the vehicle has completely passed through all the first main identification segments and the supplementary identification segments, the entry license plate information cannot be obtained. Therefore, the step S3 further includes: judging whether the entry license plate information is obtained, and if the exit license plate information is not obtained, uploading the first appearance information to the database and issuing a prompt message to prompt the staff to process.

[0032] As a specific implementation, the step S3 further includes: based on the first appearance information of the vehicle for which the entry license plate information is not obtained, sending the first appearance information to the supplementary identification segment set in the possible direction of travel of the vehicle. Through the above scheme, the entry license plate information of the vehicle can be effectively identified when the vehicle enters the highway. Similarly, a similar method can also be used in the exit section of the highway.

[0033] Regarding the calculation of vehicle fees, since the highway toll charging standards for different vehicle types, such as small vehicles and trucks, are different, and since the license plate information is uniquely associated with the vehicle, based on at least one of the entry license plate information and the exit license plate information, based on the vehicle registration information, the type information of the vehicle is obtained, and based on the type information, the corresponding charging rules are matched, and the vehicle fee is calculated according to the matched charging rules. Among them, the type information of the vehicle is the information of the type of the vehicle, such as a small car, a truck, or a bus, etc. The charging rules stipulate different charging standards and calculation methods for different vehicle types.

[0034] The second aspect of the present invention also provides a highway toll monitoring system, such as Figure 3 As shown, it includes an information processing device 10, and the information processing device 10 is used to execute the highway toll monitoring method in the above technical solution; at the entrance of the highway, a first main identification segment and at least one supplementary identification segment are sequentially arranged along the path of the highway; a first camera group 20 is arranged in the first main identification segment, and a second camera group 30 is arranged in the supplementary identification segment, and the first camera group 20 and the second camera group 30 are respectively communicated with the information processing device 10; the first camera group 20 is used to obtain the first appearance information and entry license plate information of the vehicle passing through the first main identification segment, and the first camera group 20 also includes a positioning component for obtaining the vehicle image information of the vehicle; the second camera group 30 includes a low-definition camera 31 and a high-definition camera 32, the low-definition camera 31 is used to detect and identify the second appearance information of the vehicle passing through the supplementary identification segment, and the high-definition camera 32 is used to detect and identify the entry license plate information of the vehicle.

[0035] In the above technical solution, the first camera group 20 set in the first main recognition section needs to shoot all passing vehicles to obtain vehicle image information. The vehicle image information is used to identify and obtain the entry license plate information. If the entry license plate information cannot be successfully obtained, it is necessary to be able to further obtain the first appearance information of the vehicle. Therefore, the camera needs to be able to obtain a clearer image and needs to have a higher resolution. In the second camera group 30, the low-definition camera 31 is used to detect and identify the vehicle image information according to the first appearance information. Based on the image information, the second appearance information is obtained and used to match with the first appearance information. The second appearance information is mainly the appearance of the vehicle. The vehicle itself is relatively large. Therefore, even if a camera with a lower resolution is used, the information can be obtained, and the image with a lower resolution can have a higher processing efficiency, which can improve the processing speed and reduce the demand for the information processing device 10. The high-definition camera 32 is used to obtain the vehicle's entry license plate information (license plate number) based on the second appearance information. This part only occupies a small surface area of ​​the vehicle body, and in order to ensure the passage of vehicles, the camera can only be set above the road, where there is a certain distance from the vehicle. In order to ensure the efficiency of obtaining the entry license plate information, it is necessary to use a camera with a higher resolution as an implementation method. In addition, for the highway exit section, the second main recognition section can adopt the same implementation method as the first main recognition section, and in the secondary recognition section, the same implementation method as the supplementary recognition section can be adopted.

[0036] As a specific implementation, the information processing device 10 is configured to: detect and identify the second appearance information by the low-definition camera 31, match the second appearance information with the first appearance information, and when the second appearance information is the same as the first appearance information, drive the high-definition camera 32 to detect and identify the entry license plate information of the vehicle.

[0037] In order to efficiently obtain the vehicle's entry license plate information in the first main identification segment and reduce the number of identifications in the supplementary identification segment, the first camera group 20 includes a first camera 21 and a second camera 22. The first camera 21 is used to shoot the front side of the vehicle to obtain a first license plate image, and the second camera 22 is used to shoot the rear side of the vehicle to obtain a second license plate image. The information processing device 10 can process and obtain the entry license plate information based on the first license plate image and the second license plate image.

[0038] By acquiring images of the front and rear sides of the vehicle respectively, the front and rear license plate numbers of the vehicle are acquired respectively, thereby improving the efficiency of information acquisition. Furthermore, the front and rear license plate numbers can also be compared to ensure that the acquired license plate numbers are correct. If they cannot match, you can also choose to re-acquire the information and perform a comparison in the supplementary recognition segment.

[0039] Due to different vehicle models, different fees are charged when entering the highway. Therefore, vehicles can be diverted when entering the highway. In this case, a fast-pass channel and a normal channel are set at the entrance of the highway. A limited height frame is set at the entrance of the fast-pass channel. The height of the limited height frame is set to allow only small vehicles to pass. Large vehicles can be diverted from small vehicles by using the limited height frame, and road marking can be used for auxiliary diversion. Since small vehicles face fewer inspections, the above-mentioned highway toll monitoring system can be used to enter and leave the highway, while large vehicles can still be released manually. In addition, vehicle types can also be distinguished according to the color of the license plate, and corresponding adjustments can be made to different regulations or license plate designs.

[0040] Those skilled in the art will appreciate that the above-mentioned embodiments are specific examples for implementing the present disclosure, and in actual applications, various changes may be made thereto in form and detail without departing from the scope of the present disclosure.

Claims

1. A highway toll monitoring method, characterized in that: The highway charging monitoring method comprises: At the entrance of the expressway, a first main identification segment and at least one supplementary identification segment are sequentially arranged along the path of the expressway; Step S1, detecting and identifying a vehicle passing through and entering the first main identification section to obtain vehicle image information of the vehicle, and obtaining entry position information of the vehicle based on the position of the first main identification section; Step S2, obtaining the entry license plate information of the vehicle according to the vehicle image information, and determining whether the entry license plate information is obtained. If the entry license plate information can be obtained, executing step S4; if the entry license plate information is not obtained, executing step S3; Step S3, based on the vehicle image information, obtaining first appearance information of the vehicle, sending the first appearance information to the supplementary recognition section, detecting and identifying the vehicle image information of the vehicle in the supplementary recognition section, obtaining second appearance information based on the vehicle image information, matching the second appearance information with the first appearance information, and detecting and identifying the entry license plate information of the vehicle when the second appearance information is the same as the first appearance information; Step S4, detecting and identifying vehicles entering the highway exit section to obtain the vehicle's exit license plate information and exit location information; Step S5, compare the exit license plate information with the entry license plate information to obtain the entry position information of the vehicle, calculate the vehicle's driving path based on the entry position information and the exit position information, calculate the vehicle's fee based on the driving path, and form billing information.

2. A highway charging monitoring method according to claim 1, characterized in that: At the entrance of the expressway, a plurality of access ramps connected to the main road of the expressway are provided, and a plurality of the supplementary identification sections are provided, and are respectively arranged in the access ramps; At least one supplementary identification segment is arranged in each of the access ramps.

3. A highway charging monitoring method according to claim 1, characterized in that: The step S4 further includes, at the highway exit section, sequentially setting a second primary identification section and at least one secondary identification section along the path of the highway; Step S41, detecting and identifying a vehicle that passes through and enters the second main identification section to obtain vehicle image information of the vehicle; Step S42, if the leaving license plate information is successfully obtained based on the vehicle image information recognition, then step S45 is executed, if the leaving license plate information is not successfully obtained, then the third appearance information of the vehicle is obtained according to the vehicle image information, and the third appearance information is sent to the next secondary recognition segment set along the path of the expressway; Step S43, in the secondary identification segment through which the vehicle passes, based on the third appearance information, detecting and identifying the passing vehicle to obtain fourth appearance information of the vehicle, and matching the third appearance information with the fourth appearance information, and when the third appearance information is the same as the fourth appearance information, detecting and identifying the departure license plate information of the vehicle, and repeatedly performing step S43 until the departure license plate information is obtained or the vehicle passes through all the secondary identification segments; Step S44, determining whether the leaving license plate information is obtained, if the leaving license plate information is obtained, executing step S45, if the leaving license plate information is not obtained, uploading the third appearance information to the database and issuing a prompt message; Step S45, obtaining the departure position information of the vehicle based on the position of the second main identification segment of the departure license plate information.

4. A highway charging monitoring method according to claim 1, characterized in that: The step S3 further includes: based on the first appearance information of the vehicle for which the entry license plate information has not been acquired, sending the first appearance information to the supplementary recognition segment set in the possible traveling direction of the vehicle.

5. A highway charging monitoring method according to claim 1, characterized in that: Based on at least one of the entry license plate information and the exit license plate information, based on the registration information of the vehicle, the type information of the vehicle is obtained, based on the type information, the corresponding billing rules are matched, and the vehicle fee is calculated according to the matched billing rules.

6. A highway charging monitoring method according to claim 1, characterized in that: The step S3 also includes: determining whether the entry license plate information is obtained, and if the exit license plate information is not obtained, uploading the first appearance information to a database and issuing a prompt message.

7. A highway toll monitoring system, characterized in that: It includes an information processing device, and the information processing device is used to execute the highway charging monitoring method described in any one of claims 1 to 6 above; At the entrance of the expressway, a first main identification segment and at least one supplementary identification segment are sequentially arranged along the path of the expressway; A first camera group is provided in the first main identification section, and a second camera group is provided in the supplementary identification section, and the first camera group and the second camera group are respectively connected to the information processing device for communication; The first camera group is used to obtain first appearance information and entry license plate information of a vehicle passing through the first main recognition section, and the first camera group also includes a positioning component for obtaining vehicle image information of the vehicle; The second camera group includes a low-definition camera and a high-definition camera. The low-definition camera is used to detect and identify the second appearance information of the vehicle passing through the supplementary identification segment, and the high-definition camera is used to detect and identify the entry license plate information of the vehicle.

8. A highway toll monitoring system according to claim 7, characterized in that: The information processing device is configured as follows: The low-definition camera detects and identifies the second appearance information, matches the second appearance information with the first appearance information, and when the second appearance information is the same as the first appearance information, drives the high-definition camera to detect and identify the entry license plate information of the vehicle.

9. A highway toll monitoring system according to claim 7, characterized in that: The first camera group includes a first camera and a second camera, the first camera is used to shoot the front side of the vehicle to obtain a first license plate image, and the second camera is used to shoot the rear side of the vehicle to obtain a second license plate image. The information processing device can process the first license plate image and the second license plate image and obtain the entry license plate information.

10. A highway charging monitoring system according to claim 7, characterized in that: A fast passage and a common passage are arranged at the entrance of the expressway, and a limited elevated frame is arranged at the entrance of the fast passage, and the height of the limited elevated frame is set to allow only small vehicles to pass through.

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