Temporary parking management system and method based on vehicle-mounted positioning and electronic fence

Abstract

The invention belongs to the technical field of urban traffic management, and discloses a temporary parking management system and method based on vehicle-mounted positioning and electronic fences, the temporary parking management system is composed of a front-end vehicle-mounted electronic device and a rear-end server, the front-end vehicle-mounted electronic device integrates a GNSS high-precision positioning module and a long-distance communication module, and the rear-end server integrates the GNSS high-precision positioning module and the long-distance communication module. The GNSS high-precision positioning module acquires real-time position information of a vehicle and transmits position data to the rear-end server through the long-distance communication module, and the rear-end server comprises a data processor, a database and a management platform; the temporary parking management method based on the temporary parking management system comprises the following steps: S1, configuring an electronic fence on a management platform by using a geographic information system (GIS) tool, marking an area allowing temporary parking, and defining the boundary of the electronic fence; s2, storing the coordinates defining the boundary of the electronic fence in a database; the efficiency and accuracy of parking management are effectively improved.

Description

Technical Field

[0001] The present invention belongs to the technical field of urban traffic management, and more specifically, relates to a temporary parking management system and method based on vehicle-mounted positioning and electronic fences. Background Art

[0002] Roadside temporary parking management is an important part of urban traffic management, especially in large cities with dense populations and a large number of vehicles. In commercial areas, hospitals, schools and other areas, the number of roadside parking spaces is limited, while the demand for parking is high, resulting in a shortage of parking spaces, affecting traffic flow and the quality of life of residents.

[0003] With the development of technologies such as the Internet of Things, big data, and artificial intelligence, more and more smart parking solutions have been proposed and applied in practice. For example, video recognition technology can automatically identify license plate information and simplify the parking payment process. Many large cities such as Beijing, Shanghai, and Guangzhou have begun to implement or plan to implement roadside parking electronic payment systems, which automatically record vehicle entry and exit times and fees through electronic devices, reduce labor costs, and improve management efficiency.

[0004] Although smart parking technology is becoming increasingly mature, there are still problems such as equipment failure and network instability in actual application, which affect user experience and service quality. Although electronic charging has improved management efficiency, it has also brought about the problem of rising parking fees. Some car owners choose not to use formal parking spaces due to high fees, and instead park at random in non-designated areas, which increases the difficulty of urban traffic management. Although technical means such as high-altitude monitoring can effectively combat illegal parking behaviors, for large-scale cities, how to efficiently and fairly manage and supervise all roadside parking spaces is still a challenge.

[0005] To this end, the present invention provides a temporary parking management system and method based on vehicle-mounted positioning and electronic fence. Summary of the invention

[0006] In view of the above-mentioned problems existing in the prior art, the purpose of the present invention is to provide a temporary parking management system and method based on vehicle-mounted positioning and electronic fence. The vehicle-mounted positioning equipment provides high-precision positioning information of the vehicle. The electronic fence is a technology that uses high-precision positioning technology to delineate virtual boundaries, which is used to limit or monitor activities in a specific area. In this way, temporary roadside parking can be managed in a refined manner. The car owner actively applies, the system automatically reviews, and returns the approval or rejection result. The system automatically cancels the application after the car leaves. The process of managing roadside temporary parking is automated, which effectively improves the efficiency and accuracy of parking management.

[0007] The purpose of the present invention can be achieved by the following technical solutions:

[0008] A temporary parking management system and method based on vehicle-mounted positioning and electronic fence, the temporary parking management system is composed of a front-end vehicle-mounted electronic device and a back-end server, the front-end vehicle-mounted electronic device integrates a GNSS high-precision positioning module and a long-distance communication module, the GNSS high-precision positioning module obtains the real-time location information of the vehicle, and transmits the location data to the back-end server through the long-distance communication module, the back-end server includes a data processor, a database and a management platform;

[0009] The temporary parking management method comprises the following steps based on the temporary parking management system:

[0010] S1: Use geographic information system (GIS) tools on the management platform to configure the electronic fence, mark the areas where temporary parking is allowed, and define the boundaries of the electronic fence;

[0011] S2: storing the coordinates defining the boundary of the electronic fence in a database;

[0012] S3: After the car owner temporarily parks on the roadside, he initiates a temporary parking request to the back-end server through the front-end vehicle electronic equipment;

[0013] S4: The front-end vehicle-mounted electronic equipment uploads the vehicle's high-precision positioning information and the vehicle information bound to the vehicle-mounted equipment to the back-end server through a standard communication protocol;

[0014] S5: The data processor in the backend server performs location judgment and event triggering to determine whether the vehicle is in an area marked as allowing temporary parking and is free, and returns information on parking approval or request rejection. If the parking is approved, the parking time starts to be calculated. If the request is rejected, the owner needs to leave the vehicle. If the parking area is a paid area, the parking fee starts to be calculated.

[0015] S6: During parking, the front-end vehicle electronic device continuously sends location information to the back-end server;

[0016] S7: After the vehicle leaves, the backend server triggers the parking end event based on the location judgment algorithm, automatically records the parking time, and automatically settles the parking fee;

[0017] S8: The parking record is stored in the database of the backend server, and a text message notification is sent to the car owner through the management platform.

[0018] As a further preferred technical solution of the present invention, the front-end vehicle-mounted electronic device integrates a GNSS high-precision positioning module to form a mobile station, and adopts RTK technology to obtain GNSS data. The GNSS high-precision positioning module is composed of a high-precision positioning module chip and a high-precision positioning antenna. The GNSS data includes longitude information, latitude information and altitude information.

[0019] As a further preferred technical solution of the present invention, the mobile station uses ground-based differential method to improve positioning accuracy, corrects spatial errors and tropospheric and ionospheric errors according to differential data obtained through a wireless communication link with a ground base station, and obtains centimeter-level high-precision positioning, and the wireless communication link includes one of a 4G or 5G communication link.

[0020] As a further preferred technical solution of the present invention, the data transmission between the front-end vehicle-mounted electronic equipment and the back-end server uses the standard communication protocol of TCP / IP or HTTP / HTTPS, and uses the TLS / SSL encryption protocol to ensure the security of data transmission, and sets the corresponding high-precision positioning information reporting frequency according to the requirements of the application scenario.

[0021] As a further preferred technical solution of the present invention, the boundary of the electronic fence should accurately cover the legal parking area to accurately distinguish legal parking from illegal parking. The boundary shape of the electronic fence is set to a polygonal, rectangular or circular geometric shape according to the application scenario, and the electronic fence is set with a tolerance range.

[0022] As a further preferred technical solution of the present invention, the management platform dynamically adjusts the boundary of the electronic fence through an API interface or a management interface.

[0023] As a further preferred technical solution of the present invention, the car owner initiates a temporary parking request to the back-end server through the front-end vehicle-mounted electronic equipment by means of voice interaction or text input.

[0024] As a further preferred technical solution of the present invention, the back-end server determines whether the vehicle enters or leaves the electronic fence through a position judgment algorithm. Specifically, for a polygonal electronic fence, the "ray method" and "odd-even rule" algorithms are combined to determine whether a point is inside the polygon. For a circular electronic fence, the distance from the calculated point to the center of the circle is used to determine whether it is less than the radius to determine whether the point is inside the circle.

[0025] As a further preferred technical solution of the present invention, the event trigger types processed by the back-end server include parking start, parking end, parking application rejection, timeout reminder and violation processing.

[0026] As a further preferred technical solution of the present invention, the back-end server needs to verify the received GNSS data to ensure the integrity and accuracy of the data, and regularly back up the data in the database, and adopt a redundant design.

[0027] As described above, the temporary parking management system and method based on vehicle positioning and electronic fence provided by the present invention has the following beneficial effects:

[0028] 1. High-precision positioning and electronic fences ensure that vehicles are parked in designated areas, avoid random parking, and improve parking order.

[0029] 2. Realize contactless payment and transparent fee calculation, reduce manual intervention, and improve charging efficiency and user experience.

[0030] 3. By sending parking requests and verifying the location during parking through the on-board equipment bound to the vehicle information, the verification link of video surveillance license plate recognition is reduced, simplifying the process and cost of parking management.

[0031] Additional aspects and advantages of the present invention will be given in part in the following description and in part will be obvious from the following description, or will be learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0033] Figure 1 This is an architecture diagram of a temporary parking management system and method based on vehicle positioning and electronic fences applied for by the present invention;

[0034] Figure 2 A flowchart of the steps of a temporary parking management method based on vehicle-mounted positioning and electronic fence applied by the present invention. DETAILED DESCRIPTION

[0035] The following is a description of the implementation of the present invention by means of specific embodiments. Those skilled in the art can easily understand other advantages and effects of the present invention from the contents disclosed in this specification.

[0036] It should be noted that the structures, proportions, sizes, etc. illustrated in the drawings of this specification are only used to match the contents disclosed in the specification for people familiar with this technology to understand and read, and are not used to limit the limiting conditions that the present invention can be implemented, so they have no substantial technical significance. Any modification of the structure, change in the proportional relationship, or adjustment of the size should still fall within the scope of the technical content disclosed by the present invention without affecting the effects that the present invention can produce and the purposes that can be achieved. At the same time, the terms such as "upper", "lower", "left", "right", "middle" and "one" quoted in this specification are only for the convenience of description, and are not used to limit the scope of the implementation of the present invention. The change or adjustment of the relative relationship should also be regarded as the scope of the implementation of the present invention without substantial changes in the technical content. The specific structure can be described with reference to the drawings of the patent application.

[0037] The present invention provides a temporary parking management system and method based on vehicle positioning and electronic fence. Figure 1 to Figure 2 As shown, the temporary parking management system is composed of front-end vehicle-mounted electronic equipment and back-end server. Figure 1 As shown, the front-end vehicle-mounted electronic device integrates a GNSS high-precision positioning module and a long-distance communication module. The GNSS high-precision positioning module obtains the real-time position information of the vehicle through satellite positioning, and obtains centimeter-level high-precision positioning data through ground-based differential elimination errors, and then the long-distance communication module transmits the position data to the back-end server; the back-end server includes a data processor, a database and a management platform, wherein the data processor processes the position data from the vehicle-mounted terminal, and performs position judgment and event triggering; the database is used to store the boundary coordinates of the electronic fence, vehicle position information, parking records and other data; the management platform provides Web or mobile applications for managers to configure electronic fences, view real-time data, manage parking records, etc.

[0038] Combination Figure 2 As shown, the temporary parking management method comprises the following steps based on the temporary parking management system:

[0039] S1: Use geographic information system (GIS) tools on the management platform to configure the electronic fence, mark the areas where temporary parking is allowed, and define the boundaries of the electronic fence;

[0040] S2: storing the coordinates defining the boundary of the electronic fence in a database to facilitate subsequent judgment and processing by a data processor;

[0041] S3: After the car owner temporarily parks on the roadside, he initiates a temporary parking request to the back-end server through the front-end vehicle electronic equipment;

[0042] S4: The front-end vehicle-mounted electronic equipment uploads the vehicle's high-precision positioning information and the vehicle information bound to the vehicle-mounted equipment, such as license plate information, to the back-end server through a standard communication protocol;

[0043] S5: The data processor in the backend server performs location judgment and event triggering to determine whether the vehicle is in an area marked as allowing temporary parking and is free, and returns information on parking approval or request rejection. If the parking is approved, the parking time starts to be calculated. If the request is rejected, the owner needs to leave the vehicle. If the parking area is a paid area, the parking fee starts to be calculated.

[0044] S6: During parking, the front-end vehicle electronic device continuously sends location information to the back-end server;

[0045] S7: After the vehicle leaves, the backend server triggers the parking end event based on the location judgment algorithm, automatically records the parking time, and automatically settles the parking fee;

[0046] S8: The parking record is stored in the database of the backend server, and a text message notification is sent to the car owner through the management platform.

[0047] The front-end vehicle-mounted electronic device integrates a GNSS high-precision positioning module to form a mobile station, and adopts RTK technology to obtain GNSS data. The GNSS high-precision positioning module is composed of a high-precision positioning module chip and a high-precision positioning antenna. The GNSS data includes longitude information, latitude information and altitude information.

[0048] The mobile station uses ground-based differential method to improve positioning accuracy, and corrects spatial errors and tropospheric ionospheric errors according to differential data obtained through wireless communication links with ground base stations to obtain centimeter-level high-precision positioning. The ground base station is set up on a reference point with known coordinates and continuously receives all visible GNSS satellite signals. The base station sends the coordinates of the measuring station, pseudorange observations, carrier phase observations, satellite tracking status and receiver working status to the mobile station through a wireless communication link. The GNSS high-precision positioning module is initialized first, and after completing the search and solution of the whole cycle unknown number, it enters dynamic operation. While receiving the navigation satellite signal, the GNSS high-precision positioning module receives the data transmitted by the base station through a wireless receiving device, and then according to the principle of relative positioning, the three-dimensional coordinates and accuracy of the mobile station are solved in real time (that is, the WGS-84 coordinates of each point obtained by adding the coordinate difference △x, △y, △H between the base station and the mobile station to the base coordinates, and the plane coordinates x, y and altitude H of each point of the mobile station are obtained through the coordinate conversion parameters);

[0049] The wireless communication link includes one of a 4G or 5G communication link.

[0050] The data transmission between the front-end vehicle-mounted electronic equipment and the back-end server uses the standard communication protocol of TCP / IP or HTTP / HTTPS, and uses the TLS / SSL encryption protocol to ensure the security of data transmission, and sets the corresponding high-precision positioning information reporting frequency according to the requirements of the application scenario, such as setting it to once per minute.

[0051] The boundary of the electronic fence should accurately cover the legal parking area to accurately distinguish legal parking from illegal parking. Use the Geographic Information System (GIS) tool on the management platform to manually mark on the map or use the drawing tool to draw polygons or polylines to define the boundary of the parking area; the boundary coordinate data is stored in the database of the backend server and can be imported and exported in standard formats such as GeoJSON and KML.

[0052] The boundary shape of the electronic fence is set to a polygonal, rectangular or circular geometric shape according to the application scenario. One electronic fence boundary can include one parking space, or multiple parking spaces. The electronic fence is set with a tolerance range to avoid misjudgment.

[0053] It should be noted that the tolerance range described above varies due to different levels of accuracy of positioning precision. The accuracy of civil GPS is about 3 to 5 meters, but in urban environments, it may be affected by factors such as building obstruction, and the accuracy may be reduced to 10 meters or even more. The high-precision positioning solution based on RTK and ground-based differential provided by the present invention can achieve centimeter-level accuracy in the absence of obstruction, and can also provide sub-meter-level accuracy in the case of partial obstruction by buildings. The requirements for the tolerance range are not high, and a tolerance range of one to two meters can generally be set. The tolerance range generally needs to be considered when setting the boundary of the electronic fence, that is, the boundary of the electronic fence of the legal parking area is appropriately reduced according to the tolerance range to ensure that the vehicle can be guaranteed to be in the legal parking area even if there is a certain positioning error. In addition, an exception handling mechanism can be added, that is, when the user parks near the edge of the electronic fence, the system requires the user to move to the legal parking area by sending a prompt message.

[0054] The management platform dynamically adjusts the boundaries of the electronic fence through an API interface or a management interface.

[0055] The car owner uses voice interaction or text input to initiate a temporary parking request to the backend server through the front-end vehicle electronic device. A complete parking request can include the current location of the vehicle, the vehicle license plate information bound to the vehicle device, and the estimated parking time. Voice interaction uses a combination of offline and online methods. The offline SDK realizes wake-up word recognition and voice segmentation. After the voice file is uploaded to the cloud platform, voice recognition and voice synthesis are performed.

[0056] The back-end server determines whether the vehicle enters or leaves the electronic fence through a position judgment algorithm. Specifically, for polygonal electronic fences, the "ray method" and "odd-even rule" algorithms are combined to determine whether a point is inside the polygon. For circular electronic fences, the distance from the calculated point to the center of the circle is used to determine whether it is less than the radius to determine whether the point is inside the circle.

[0057] The steps of the "ray method" and "odd-even rule" algorithms are as follows:

[0058] S1: Draw a ray from the test point in a fixed direction (usually horizontally to the right, but it can be any other direction as long as it does not coincide with any edge of the polygon).

[0059] S2: Calculate the number of intersections between this ray and the edge of the polygon. Note that only the edges of the polygon are considered, not the vertices (or the vertices can be treated as a special case).

[0060] S3: If the number of intersection points is odd, the test point is inside the polygon. Conversely, if the number of intersection points is even, the test point is outside the polygon.

[0061] The event trigger types processed by the backend server include parking start, parking end, parking application rejection, timeout reminder and violation handling. The definition and trigger logic of each event are as follows:

[0062] Parking start: After the user submits a parking application, the management platform determines the location of the vehicle based on the high-precision positioning information uploaded by the front-end on-board electronic equipment. If it is determined to be within the electronic fence, the parking application is approved and the parking start event is triggered;

[0063] Parking end: After the parking starts, the front-end vehicle electronic device continuously sends location information to the back-end server at a certain frequency (for example, once a minute). After receiving the location information, the back-end server makes a location judgment. When it is judged to be outside the electronic fence, the parking end event is triggered;

[0064] Parking application rejection: After the user submits a parking application, the backend server determines the location of the vehicle based on the location information uploaded by the front-end vehicle electronic device. If it is determined that the vehicle is outside the electronic fence, or the number of vehicles within the current electronic fence has reached the parking limit, the parking application rejection event is triggered;

[0065] Timeout reminder: After the parking starts, the backend server counts the parking time of the temporary parking vehicle. When the parking time exceeds the temporary parking prescribed value or the prepaid time, the timeout reminder event is triggered;

[0066] Violation handling: If the vehicle has not left after the parking application is rejected or has not left after the time limit, a violation handling event will be triggered.

[0067] The back-end server needs to verify the received GNSS data to ensure the integrity and accuracy of the data, and regularly back up the data in the database to ensure rapid recovery in the event of a system failure, and adopt a redundant design to ensure that the system can still operate normally in the event of a single point failure.

[0068] It will be apparent to those skilled in the art that the invention is not limited to the details of the exemplary embodiments described above and that the invention can be implemented in other specific forms without departing from the spirit or essential features of the invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description, and it is intended that all variations falling within the meaning and scope of the equivalent elements of the claims be included in the invention. Any reference numeral in a claim should not be considered as limiting the claim to which it relates.

Claims

1. A temporary parking management system and method based on vehicle positioning and electronic fence, characterized in that: The temporary parking management system is composed of a front-end vehicle-mounted electronic device and a back-end server. The front-end vehicle-mounted electronic device integrates a GNSS high-precision positioning module and a long-distance communication module. The GNSS high-precision positioning module obtains the real-time location information of the vehicle and transmits the location data to the back-end server through the long-distance communication module. The back-end server includes a data processor, a database and a management platform. The temporary parking management method comprises the following steps based on the temporary parking management system: S1: Use geographic information system (GIS) tools on the management platform to configure the electronic fence, mark the areas where temporary parking is allowed, and define the boundaries of the electronic fence; S2: storing the coordinates defining the boundary of the electronic fence in a database; S3: After the car owner temporarily parks on the roadside, he initiates a temporary parking request to the back-end server through the front-end vehicle electronic equipment; S4: The front-end vehicle-mounted electronic equipment uploads the vehicle's high-precision positioning information and the vehicle information bound to the vehicle-mounted equipment to the back-end server through a standard communication protocol; S5: The data processor in the backend server performs location judgment and event triggering to determine whether the vehicle is in an area marked as allowing temporary parking and is free, and returns information on parking approval or request rejection. If the parking is approved, the parking time starts to be calculated. If the request is rejected, the owner needs to leave the vehicle. If the parking area is a paid area, the parking fee starts to be calculated. S6: During parking, the front-end vehicle electronic device continuously sends location information to the back-end server; S7: After the vehicle leaves, the backend server triggers the parking end event based on the location judgment algorithm, automatically records the parking time, and automatically settles the parking fee; S8: The parking record is stored in the database of the backend server, and a text message notification is sent to the car owner through the management platform.

2. A temporary parking management system and method based on vehicle positioning and electronic fence according to claim 1, characterized in that: The front-end vehicle-mounted electronic device integrates a GNSS high-precision positioning module to form a mobile station, and adopts RTK technology to obtain GNSS data. The GNSS high-precision positioning module is composed of a high-precision positioning module chip and a high-precision positioning antenna. The GNSS data includes longitude information, latitude information and altitude information.

3. A temporary parking management system and method based on vehicle positioning and electronic fence according to claim 2, characterized in that: The mobile station improves positioning accuracy by using ground-based differential method, corrects spatial error and tropospheric and ionospheric error according to differential data obtained through wireless communication link with ground base station, and obtains centimeter-level high-precision positioning. The wireless communication link includes one of 4G or 5G communication links.

4. A temporary parking management system and method based on vehicle positioning and electronic fence according to claim 1, characterized in that: The data transmission between the front-end vehicle-mounted electronic equipment and the back-end server uses the standard communication protocol of TCP / IP or HTTP / HTTPS, and uses the TLS / SSL encryption protocol to ensure the security of data transmission, and sets the corresponding high-precision positioning information reporting frequency according to the requirements of the application scenario.

5. A temporary parking management system and method based on vehicle positioning and electronic fence according to claim 1, characterized in that: The boundary of the electronic fence should accurately cover the legal parking area to accurately distinguish legal parking from illegal parking. The boundary shape of the electronic fence is set to a polygonal, rectangular or circular geometric shape according to the application scenario, and the electronic fence is set with a tolerance range.

6. A temporary parking management system and method based on vehicle positioning and electronic fence according to claim 1, characterized in that: The management platform dynamically adjusts the boundaries of the electronic fence through an API interface or a management interface.

7. A temporary parking management system and method based on vehicle positioning and electronic fence according to claim 1, characterized in that: The car owner uses voice interaction or text input to initiate a temporary parking request to the back-end server through the front-end vehicle electronic equipment.

8. A temporary parking management system and method based on vehicle positioning and electronic fence according to claim 5, characterized in that: The back-end server determines whether the vehicle enters or leaves the electronic fence through a position judgment algorithm. Specifically, for polygonal electronic fences, the "ray method" and "odd-even rule" algorithms are combined to determine whether a point is inside the polygon. For circular electronic fences, the distance from the calculated point to the center of the circle is used to determine whether it is less than the radius to determine whether the point is inside the circle.

9. A temporary parking management system and method based on vehicle positioning and electronic fence according to claim 1, characterized in that: The event trigger types processed by the back-end server include parking start, parking end, parking application rejection, timeout reminder and violation processing.

10. A temporary parking management system and method based on vehicle positioning and electronic fence according to claim 1, characterized in that: The back-end server needs to verify the received GNSS data to ensure the integrity and accuracy of the data, and regularly back up the data in the database, and adopt a redundant design.

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