Vehicle information processing method and electronic device

Abstract

The application provides a vehicle information processing method and an electronic device, and the method comprises the following steps: acquiring at least one speed limit sign in a driving environment where a vehicle is located in real time, and determining the occurrence time and occurrence position of each speed limit sign; determining the current speed limit information of the vehicle according to each speed limit sign and the occurrence time and occurrence position of each speed limit sign; displaying the current speed limit information, and acquiring the current driving state information of the vehicle after the current speed limit information is displayed; determining whether to stop displaying the current speed limit information of the vehicle according to the current driving state information, and stopping displaying if yes. The application can accurately display the current speed limit information of the vehicle, and can also ensure the reliability of speed limit recognition, and can also adjust the current speed limit information according to the actual driving logic, so that the display process of the speed limit information is more in line with the real driving logic, thereby improving the human-computer interaction experience of the user in the driving process.

Description

Technical Field

[0001] This application relates to the field of vehicle information processing technology, and more specifically, to a vehicle information processing method and an electronic device. Background Technology

[0002] With the continuous development of intelligent transportation systems and intelligent technologies in commercial vehicles, driving safety and the standardization of driving behavior have become important issues in the transportation sector. Commercial vehicles, due to their high load capacity, long braking distance, and complex operating environments, face particularly stringent speed control requirements in scenarios such as highways, urban expressways, and mountain roads. Speeding not only significantly increases the risk of traffic accidents but also accelerates the wear and tear on critical components such as tires and braking systems, leading to increased operating costs and potentially violating traffic regulations, thus affecting the compliance management of transportation companies.

[0003] In existing technologies, vehicle-mounted cameras can be used to identify speed limit signs on the road ahead, and lane detection technology can be used to determine the lane in which the vehicle is located, thereby matching the speed limit value of the corresponding lane.

[0004] However, the aforementioned existing technologies rely on clear lane line information to determine the lane a vehicle is in. When lane lines are blurry, obscured, or at complex intersections, misjudgments are prone to occur, leading to incorrect speed limit information matching. This results in low accuracy and a lack of consistency with actual driving logic. Summary of the Invention

[0005] The purpose of this application is to address the shortcomings of the prior art by providing a vehicle information processing method and electronic device to solve the problems of low accuracy and non-compliance with actual driving logic in the prior art.

[0006] To achieve the above objectives, the technical solutions adopted in the embodiments of this application are as follows: In a first aspect, one embodiment of this application provides a vehicle information processing method, the method comprising: The system acquires at least one speed limit sign in the driving environment where the vehicle is located in real time, and determines the occurrence time and location of each speed limit sign. The current speed limit information of the vehicle is determined based on each speed limit sign and the time and location of its appearance. The current speed limit information is displayed, and the current driving status information of the vehicle after the current speed limit information is displayed is obtained. The current driving status information includes at least one of the following: current vehicle travel distance and current vehicle steering status. Based on the current driving status information, determine whether to stop displaying the vehicle's current speed limit information; if so, stop displaying it.

[0007] As one possible implementation, determining the current speed limit information of the vehicle based on each speed limit sign and the time and location of its appearance includes: The candidate speed limit sequence is updated based on the appearance time and location of each speed limit sign. The candidate speed limit sequence includes multiple speed limit signs arranged in order of appearance time. The current speed limit information of the vehicle is determined based on the alternative speed limit sequence.

[0008] As one possible implementation, updating the candidate speed limit sequence based on the occurrence time and location of each speed limit sign includes: Iterate through each of the speed limit signs. For the current speed limit sign that has been traversed, determine whether to perform a stability judgment on the current speed limit sign based on the position of the current speed limit sign. If so, determine whether the current speed limit sign is stable based on the time of its appearance. If so, add the current speed limit sign to the candidate speed limit sequence based on the time of its appearance.

[0009] As one possible implementation, determining whether to perform a stability check on the current speed limit sign based on its location includes: Determine the lateral position of the current speed limit sign based on its location. If the lateral position of the current speed limit sign is less than a preset first distance threshold, then it is determined that the current speed limit sign is to be subjected to stability judgment. If the lateral position of the current speed limit sign is greater than or equal to a preset first distance threshold, then it is determined that the stability of the current speed limit sign will not be judged.

[0010] As one possible implementation, determining whether the current speed limit sign is stable based on its occurrence time includes: Obtain from the candidate speed limit sequence at least one historical speed limit identifier that belongs to the same speed limit identifier as the current speed limit identifier, and the occurrence time of each historical speed limit identifier; Based on the appearance time of the current speed limit sign and the appearance time of each historical speed limit sign, determine whether the current speed limit sign is stable.

[0011] As one possible implementation, determining whether the current speed limit sign is stable based on the occurrence time of the current speed limit sign and the occurrence times of each historical speed limit sign includes: The duration of the current speed limit sign is determined based on the appearance time of the current speed limit sign and the appearance time of each historical speed limit sign. If the duration of occurrence exceeds a preset first duration threshold, then the current speed limit indicator is determined to be stable.

[0012] As one possible implementation, determining the current speed limit information of the vehicle based on the candidate speed limit sequence includes: Determine the first speed limit identifier with the smallest speed limit value in the candidate speed limit sequence, and determine the second speed limit identifier with the smallest lateral position in the candidate speed limit sequence; The current speed limit information of the vehicle is determined based on the first speed limit sign and the second speed limit sign.

[0013] As one possible implementation, determining the current speed limit information of the vehicle based on the first speed limit sign and the second speed limit sign includes: If the first speed limit sign and the second speed limit sign are the same speed limit sign, then the speed limit value in the first speed limit sign or the second speed limit sign shall be used as the current speed limit information of the vehicle. If the first speed limit sign and the second speed limit sign are not the same speed limit sign, then the distance difference between the first speed limit sign and the second speed limit sign is determined, and the distance difference is compared with a preset second distance threshold. If the distance difference is greater than or equal to a preset second distance threshold, then the speed limit value in the second speed limit identifier is used as the current speed limit information of the vehicle. If the distance difference is less than a preset second distance threshold, the speed limit value in the first speed limit sign is used as the current speed limit information of the vehicle.

[0014] As one possible implementation, the method further includes: The candidate speed limit sequence is updated based on the occurrence time of each speed limit identifier in the candidate speed limit sequence.

[0015] Secondly, another embodiment of this application provides a vehicle information processing device, the device comprising: The acquisition module is used to acquire at least one speed limit sign in the driving environment where the vehicle is located in real time, and determine the occurrence time and location of each speed limit sign; The determining module is used to determine the current speed limit information of the vehicle based on each of the speed limit signs and the time and location of each of the speed limit signs. The display module is used to display the current speed limit information and obtain the current driving status information of the vehicle after the current speed limit information is displayed. The current driving status information includes at least one of the following: current vehicle travel distance and current vehicle steering status. The stop module is used to determine whether to stop displaying the vehicle's current speed limit information based on the current driving status information; if so, the display is stopped.

[0016] As one possible implementation, the determining module is specifically used for: The candidate speed limit sequence is updated based on the appearance time and location of each speed limit sign. The candidate speed limit sequence includes multiple speed limit signs arranged in order of appearance time. The current speed limit information of the vehicle is determined based on the alternative speed limit sequence.

[0017] As one possible implementation, the determining module is specifically used for: Iterate through each of the speed limit signs. For the current speed limit sign that has been traversed, determine whether to perform a stability judgment on the current speed limit sign based on the position of the current speed limit sign. If so, determine whether the current speed limit sign is stable based on the time of its appearance. If so, add the current speed limit sign to the candidate speed limit sequence based on the time of its appearance.

[0018] As one possible implementation, the determining module is specifically used for: Determine the lateral position of the current speed limit sign based on its location. If the lateral position of the current speed limit sign is less than a preset first distance threshold, then it is determined that the current speed limit sign is to be subjected to stability judgment. If the lateral position of the current speed limit sign is greater than or equal to a preset first distance threshold, then it is determined that the stability of the current speed limit sign will not be judged.

[0019] As one possible implementation, the determining module is specifically used for: Obtain from the candidate speed limit sequence at least one historical speed limit identifier that belongs to the same speed limit identifier as the current speed limit identifier, and the occurrence time of each historical speed limit identifier; Based on the appearance time of the current speed limit sign and the appearance time of each historical speed limit sign, determine whether the current speed limit sign is stable.

[0020] As one possible implementation, the determining module is specifically used for: The duration of the current speed limit sign is determined based on the appearance time of the current speed limit sign and the appearance time of each historical speed limit sign. If the duration of occurrence exceeds a preset first duration threshold, then the current speed limit indicator is determined to be stable.

[0021] As one possible implementation, the determining module is specifically used for: Determine the first speed limit identifier with the smallest speed limit value in the candidate speed limit sequence, and determine the second speed limit identifier with the smallest lateral position in the candidate speed limit sequence; The current speed limit information of the vehicle is determined based on the first speed limit sign and the second speed limit sign.

[0022] As one possible implementation, the determining module is specifically used for: If the first speed limit sign and the second speed limit sign are the same speed limit sign, then the speed limit value in the first speed limit sign or the second speed limit sign shall be used as the current speed limit information of the vehicle. If the first speed limit sign and the second speed limit sign are not the same speed limit sign, then the distance difference between the first speed limit sign and the second speed limit sign is determined, and the distance difference is compared with a preset second distance threshold. If the distance difference is greater than or equal to a preset second distance threshold, then the speed limit value in the second speed limit identifier is used as the current speed limit information of the vehicle. If the distance difference is less than a preset second distance threshold, the speed limit value in the first speed limit sign is used as the current speed limit information of the vehicle.

[0023] As one possible implementation, the determining module is further configured to: The candidate speed limit sequence is updated based on the occurrence time of each speed limit identifier in the candidate speed limit sequence.

[0024] Thirdly, another embodiment of this application provides an electronic device, including: a processor, a storage medium, and a bus, wherein the storage medium stores machine-readable instructions executable by the processor, and when the electronic device is running, the processor communicates with the storage medium via the bus, and the processor executes the machine-readable instructions to perform the steps of any of the methods described in the first aspect above.

[0025] Fourthly, another embodiment of this application provides a computer-readable storage medium storing a computer program that, when executed by a processor, performs the steps of any of the methods described in the first aspect above.

[0026] The beneficial effects of this application are as follows: By acquiring at least one speed limit sign in the vehicle's driving environment in real time, determining the appearance time and location of each speed limit sign, and based on the speed limit signs and their appearance time and location, the current speed limit information of the vehicle can be determined, thereby enabling the display of the current speed limit information. Furthermore, the application can acquire the vehicle's current driving status information after the current speed limit information is displayed, and based on the current driving status information, determine whether to stop displaying the current speed limit information. If so, the display is stopped. This ensures accurate display of the vehicle's current speed limit information and guarantees the reliability of speed limit recognition. Simultaneously, the application can adjust the current speed limit information according to actual driving logic, making the speed limit information display process more consistent with real driving logic. This improves the human-machine interaction experience for users during driving, prevents drivers from being distracted by outdated information, and keeps the dashboard interface simple and clear. In addition, it reduces the risk of speeding and ensures driving safety. Attached Figure Description

[0027] To more clearly illustrate the technical solutions of the embodiments of this application, the accompanying drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this application and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0028] Figure 1 A schematic flowchart of a vehicle information processing method provided in an embodiment of this application; Figure 2 This is a flowchart illustrating the process of determining the current speed limit information of a vehicle in the vehicle information processing method provided in this application embodiment. Figure 3 This is a flowchart illustrating the process of determining whether to perform a stability assessment on the current speed limit sign in the vehicle information processing method provided in this application embodiment. Figure 4 A flowchart illustrating the process of determining whether the current speed limit sign is stable in the vehicle information processing method provided in this application embodiment; Figure 5 Another flowchart illustrating the process of determining whether the current speed limit sign is stable in the vehicle information processing method provided in this application embodiment; Figure 6 This is a flowchart illustrating the process of determining the current speed limit information of a vehicle in the vehicle information processing method provided in this application embodiment. Figure 7 This is another flowchart illustrating the process of determining the current speed limit information of a vehicle in the vehicle information processing method provided in this application embodiment. Figure 8This is a flowchart illustrating the process of determining whether to stop displaying the vehicle's current speed limit information in the vehicle information processing method provided in this application embodiment. Figure 9 A schematic diagram of a vehicle information processing device provided in an embodiment of this application; Figure 10 This is a schematic diagram of the electronic device structure provided in an embodiment of this application. Detailed Implementation

[0029] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. It should be understood that the accompanying drawings in this application are for illustrative and descriptive purposes only and are not intended to limit the scope of protection of this application. Furthermore, it should be understood that the schematic drawings are not drawn to scale. The flowcharts used in this application illustrate operations implemented according to some embodiments of this application. It should be understood that the operations in the flowcharts may not be implemented in sequence, and steps without logical contextual relationships may be reversed or implemented simultaneously. In addition, those skilled in the art, guided by the content of this application, may add one or more other operations to the flowcharts, or remove one or more operations from the flowcharts.

[0030] Furthermore, the described embodiments are merely some, not all, of the embodiments of this application. The components of the embodiments of this application described and illustrated herein can typically be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of this application provided in the accompanying drawings is not intended to limit the scope of the claimed application, but merely to illustrate selected embodiments of the application. All other embodiments obtained by those skilled in the art based on the embodiments of this application without inventive effort are within the scope of protection of this application.

[0031] It should be noted that the term "comprising" will be used in the embodiments of this application to indicate the presence of the features declared thereafter, but does not exclude the addition of other features.

[0032] In existing technologies, vehicle-mounted cameras can be used to identify speed limit signs on the road ahead, and lane detection technology can be used to determine the lane in which the vehicle is located, thereby matching the speed limit value of the corresponding lane.

[0033] However, the aforementioned existing technologies rely on clear lane line information to determine the lane a vehicle is in. When lane lines are blurry, obscured, or at complex intersections, misjudgments are prone to occur, leading to incorrect speed limit information matching. This results in low accuracy and a lack of consistency with actual driving logic.

[0034] Based on the aforementioned problems, this application proposes a vehicle information processing method. This method acquires at least one speed limit sign in the vehicle's driving environment in real time, determines the appearance time and location of each speed limit sign, and determines the vehicle's current speed limit information based on the sign's appearance time and location. This allows the method to display the current speed limit information and acquire the vehicle's current driving status information after the speed limit information is displayed. Based on the current driving status information, the method determines whether to stop displaying the vehicle's current speed limit information; if so, it stops displaying it. This method accurately displays the vehicle's current speed limit information and adjusts the current speed limit information according to actual driving logic, thereby improving the user's driving experience.

[0035] The vehicle information processing method provided in this application will be described in detail below with reference to several embodiments.

[0036] Figure 1 This is a schematic flowchart of a vehicle information processing method provided in an embodiment of this application, referring to... Figure 1 As shown, the executing entity of this method can be any electronic device with processing capabilities, such as a vehicle controller. The method includes: S101. Obtain at least one speed limit sign in the driving environment where the vehicle is located in real time, and determine the time and location of each speed limit sign.

[0037] Optionally, during vehicle operation, it can be determined whether there are speed limit signs in the driving environment where the vehicle is located. If there are, at least one speed limit sign in the driving environment where the vehicle is located is obtained in real time, and the occurrence time and location of each speed limit sign are determined.

[0038] Speed ​​limit signs refer to traffic signs on roads within the vehicle's driving environment that indicate the maximum speed limit or the removal of the speed limit. These signs include the speed limit value, the time of appearance (when the speed limit is captured by the vehicle), and the location (the coordinates of the speed limit in the vehicle's coordinate system at the time of capture). Optionally, the speed limit sign may also include an ID to distinguish speed limit signs with the same speed limit value.

[0039] Specifically, the vehicle coordinate system refers to a coordinate system with the positive x-axis pointing directly forward in the direction of vehicle travel, the positive y-axis pointing to the left in the direction of vehicle travel, and the positive z-axis pointing towards the roof of the vehicle. Furthermore, with the vehicle's center of mass as the origin, counterclockwise rotation is considered positive, and clockwise rotation is considered negative.

[0040] For example, during vehicle operation, the vehicle's forward-facing camera continuously captures images of the road environment in which the vehicle is located. An image recognition algorithm automatically identifies speed limit signs, and the time of the captured image is taken as the sign's appearance time. The camera then uses monocular or multi-view visual ranging technology to estimate the sign's position in the vehicle's coordinate system. Specifically, the image recognition algorithm may include OCR recognition algorithms and object detection algorithms.

[0041] S102. Determine the current speed limit information of the vehicle based on each speed limit sign and the time and location of its appearance.

[0042] Optionally, after obtaining the speed limit signs and their times and locations, the speed limit signs and their times and locations can be judged and processed to determine the current speed limit information of the vehicle.

[0043] The current speed limit information of a vehicle refers to the maximum speed at which the vehicle can travel under the current driving conditions.

[0044] In one example, the validity of each speed limit sign can be filtered to obtain valid speed limit signs. Based on the appearance time and location of the valid speed limit signs, the current speed limit information of the vehicle can be determined, thereby avoiding the mis-collection of irrelevant signs in the target lane or at a distance.

[0045] In another example, the speed limit signs, their appearance time, and their location can be input into a pre-trained speed limit information generation model. The speed limit information generation model can then predict the current speed limit information of the vehicle based on the speed limit signs, their appearance time, and their location.

[0046] S103. Display the current speed limit information and obtain the vehicle's current driving status information after the current speed limit information is displayed.

[0047] Optionally, after obtaining the current speed limit information, the current speed limit information can be displayed through the vehicle's onboard terminal, and the vehicle's current driving status information can be obtained after the current speed limit information is displayed.

[0048] The current driving status information includes at least one of the following: current vehicle distance traveled and current vehicle steering status.

[0049] For example, after the vehicle's onboard terminal displays the current speed limit information, the vehicle controller continuously records the vehicle's current driving status information.

[0050] For example, after the vehicle's onboard terminal displays the current speed limit information, it can calculate the current vehicle travel distance by integrating the vehicle's kinematic model at fixed intervals based on the vehicle speed.

[0051] For example, if the vehicle's left turn signal is on, and the vehicle's steering wheel angle is greater than or equal to a set positive threshold, and the vehicle's yaw rate is greater than or equal to a positive threshold, then the vehicle is determined to be in a left turn state; if the vehicle's right turn signal is on, and the vehicle's steering wheel angle is less than or equal to a set negative threshold, and the vehicle's yaw rate is less than or equal to a negative threshold, then the vehicle is determined to be in a right turn state.

[0052] S104. Based on the current driving status information, determine whether to stop displaying the vehicle's current speed limit information. If so, stop displaying it.

[0053] Optionally, the current driving status information can be combined with a preset display stop strategy to determine whether to stop displaying the vehicle's current speed limit information. If it is determined that the current speed limit information should be stopped, the display of the vehicle's current speed limit information can be stopped. Otherwise, the display of the vehicle's current speed limit information can continue.

[0054] It is understandable that when the current speed limit information of the vehicle is displayed, while performing step S104, step S101 can also be performed simultaneously to continue to acquire the new speed limit sign and determine the appearance time and location of the new speed limit sign, thereby performing steps S102-S103 to determine the new current speed limit information and display the new current speed limit sign information.

[0055] In other words, in the vehicle information processing method provided in this embodiment, the execution steps of S101-S104 are not unique. This embodiment of the application will be described using the acquisition of a speed limit sign as an example.

[0056] In this embodiment, by acquiring at least one speed limit sign in the vehicle's driving environment in real time, determining the appearance time and location of each speed limit sign, and based on these signs, determining the vehicle's current speed limit information, the system can display the current speed limit information. Furthermore, it acquires the vehicle's current driving status information after the current speed limit information is displayed, allowing the system to determine whether to stop displaying the current speed limit information based on the current driving status. If so, the display is stopped. This ensures accurate display of the vehicle's current speed limit information and guarantees the reliability of speed limit recognition. Simultaneously, the system can adjust the current speed limit information according to actual driving logic, making the display process more consistent with real driving logic. This improves the user's human-computer interaction experience during driving, prevents the driver from being distracted by outdated information, and keeps the dashboard interface simple and clear. In addition, it reduces the risk of speeding and ensures driving safety.

[0057] In one possible implementation, Figure 2 This is a flowchart illustrating the process of determining the current speed limit information of a vehicle in the vehicle information processing method provided in this application embodiment, with reference to... Figure 2 As shown, in step S102 above, the current speed limit information of the vehicle is determined based on each speed limit sign and its appearance time and location, including: S201. Update the candidate speed limit sequence based on the appearance time and location of each speed limit sign.

[0058] Optionally, the candidate speed limit sequence can be updated based on the appearance time and location of each speed limit sign, thereby determining the current speed limit information of the vehicle based on the candidate speed limit sequence.

[0059] The candidate speed limit sequence includes multiple speed limit signs arranged in chronological order of their occurrence. Specifically, the candidate speed limit sequence is a dynamically maintained dataset that stores relevant and valid speed limit signs currently visible to the vehicle.

[0060] For example, the appearance time and location of each speed limit sign can be judged and filtered. When the appearance time and location of the speed limit sign meet the preset conditions, the speed limit sign can be updated to the candidate speed limit sequence.

[0061] The preset conditions can be that the location of the occurrence is within the preset vehicle visibility range, and the occurrence time is no earlier than the earliest acceptable time and no later than the latest acceptable time. The vehicle visibility range can be a circular range with the current position of the vehicle as the center and the visible length as the radius. The visible length can be pre-configured or dynamically determined according to the road width in the driving environment of the vehicle. The earliest acceptable time and the latest acceptable time can be obtained by combining the current time with a preset time difference threshold.

[0062] S202. Determine the current speed limit information of the vehicle based on the alternative speed limit sequence.

[0063] Optionally, after the alternative speed limit sequence is updated, the current speed limit information of the vehicle can be determined based on each speed limit sign in the alternative speed limit sequence.

[0064] For example, the speed limit identifier with the largest speed limit value can be found from the alternative speed limit sequence, and the speed limit identifier with the largest speed limit value can be used as the current speed limit information of the vehicle, thereby improving the safety performance of the vehicle during driving.

[0065] By updating the candidate speed limit sequence based on the appearance time and location of each speed limit sign, and determining the vehicle's current speed limit information based on the candidate speed limit sequence, the candidate speed limit sequence can serve as a spatiotemporal memory carrier for the speed limit signs. This ensures that the recognition result of each speed limit sign is no longer isolated, thereby supporting the judgment of the continuity of speed limit status across line of sight, achieving highly robust speed limit recognition, and coping with complex real-world scenarios.

[0066] In one possible implementation, step S201 above updates the candidate speed limit sequence based on the appearance time and location of each speed limit sign, including: Iterate through each speed limit sign. For the current speed limit sign, determine whether to perform a stability check based on its position. If so, determine whether the current speed limit sign is stable based on its appearance time. If so, add the current speed limit sign to the candidate speed limit sequence based on its appearance time.

[0067] Optionally, each speed limit sign can be traversed. For the current speed limit sign that is traversed, it is determined whether to perform a stability judgment on the current speed limit sign based on the position of the current speed limit sign. When determining to perform a stability judgment on the current speed limit sign, it is determined whether the current speed limit sign is stable based on the time of its appearance.

[0068] Optionally, if it is determined that the stability of the current speed limit sign is not to be determined, then the next sign of the current speed limit sign is taken as the new current speed limit sign, and the traversal and judgment are continued.

[0069] Optionally, if it is determined that the current speed limit sign is stable, the current speed limit sign is added to the candidate speed limit sequence based on the time when the current speed limit sign appears.

[0070] Optionally, if it is determined that the current speed limit sign is unstable, the next sign of the current speed limit sign is taken as the new current speed limit sign, and the traversal and judgment are continued.

[0071] For example, when the location of the current speed limit sign meets a preset location condition, a stability determination can be made for the current speed limit sign.

[0072] The preset location condition can be that the location is within a preset vehicle visibility range. The vehicle visibility range can be a circular range with the current vehicle location as the center and the visible length as the radius. The visible length can be pre-configured or dynamically determined according to the road width in the vehicle's driving environment.

[0073] For example, when determining the stability of the current speed limit sign, the current speed limit sign can be determined to be stable if the occurrence time of the current speed limit sign meets a preset time condition.

[0074] In one example, the preset time condition can be that the occurrence time is no earlier than the earliest acceptable time and no later than the latest acceptable time. The earliest acceptable time and the latest acceptable time can be obtained by combining the current time with a preset time difference threshold.

[0075] In another example, the preset time condition can also be determined based on the duration of the current speed limit sign in the alternative speed limit sequence.

[0076] For example, when it is determined that the current speed limit sign is stable, the current speed limit sign can be inserted into the corresponding position in the candidate speed limit sequence according to the time when the current speed limit sign appears.

[0077] By traversing each speed limit sign, the system sequentially determines whether a stability assessment is needed and whether the sign is stable. This allows stable speed limit signs to be added to the candidate speed limit sequence. The speed limit recognition process is no longer simply adopted upon encountering a speed limit sign; instead, stability analysis is performed based on the sign's location and time of appearance. This avoids incorrect prompts due to a single misidentification, thereby improving the accuracy, reliability, and robustness of the recognition process.

[0078] In one possible implementation, Figure 3 This is a flowchart illustrating the process of determining whether to perform a stability assessment on the current speed limit sign in the vehicle information processing method provided in this application embodiment, referring to... Figure 3As shown, the above steps determine whether to perform a stability check on the current speed limit sign based on its location, including: S301. Determine the lateral position of the current speed limit sign based on its location.

[0079] Optionally, the lateral position of the current speed limit sign can be determined from the location where the current speed limit sign appears.

[0080] For example, the lateral position of the current speed limit sign can be obtained based on the Y-axis coordinate value or the Y-direction distance of the current speed limit sign's location.

[0081] S302. If the lateral position of the current speed limit sign is less than the preset first distance threshold, then determine the stability of the current speed limit sign.

[0082] Optionally, the lateral position of the current speed limit sign is compared with a preset first distance threshold. If the lateral position of the current speed limit sign is less than the preset first distance threshold, then the stability of the current speed limit sign is determined.

[0083] S303. If the lateral position of the current speed limit sign is greater than or equal to the preset first distance threshold, then it is determined that the stability of the current speed limit sign will not be judged.

[0084] Optionally, the lateral position of the current speed limit sign is compared with a preset first distance threshold. If the lateral position of the current speed limit sign is greater than or equal to the preset first distance threshold, then it is determined that the stability of the current speed limit sign will not be judged.

[0085] By determining the lateral position of the current speed limit sign and comparing it with a preset first distance threshold, it can be determined whether to perform a stability assessment on the current speed limit sign. This avoids prematurely initiating redundant assessments at long distances. Furthermore, it prioritizes processing critical information that may affect vehicle speed control within the critical decision-making range. At the same time, it shortens the time delay from recognition to speed limit adjustment, improving the real-time performance of the speed limit recognition process.

[0086] In one possible implementation, Figure 4 This is a flowchart illustrating the process of determining whether the current speed limit sign is stable in the vehicle information processing method provided in this application embodiment, with reference to... Figure 4 As shown, the above steps determine whether the current speed limit sign is stable based on its appearance time, including: S401. Obtain from the candidate speed limit sequence at least one historical speed limit sign that belongs to the same speed limit sign as the current speed limit sign, and the occurrence time of each historical speed limit sign.

[0087] Optionally, it is possible to search from the candidate speed limit sequence for whether there is a historical speed limit sign that belongs to the same speed limit sign as the current speed limit sign, and obtain at least one historical speed limit sign that belongs to the same speed limit sign as the current speed limit sign and the occurrence time of each historical speed limit sign.

[0088] For example, if the current speed limit identifier is a speed limit of 60, it can be searched from the candidate speed limit sequence to find whether there is a speed limit identifier with the same ID and speed limit of 60. If so, the speed limit identifier is used as the historical speed limit identifier, and the occurrence time of the speed limit identifier is obtained as the occurrence time of the historical speed limit identifier.

[0089] S402. Determine whether the current speed limit sign is stable based on the appearance time of the current speed limit sign and the appearance time of each historical speed limit sign.

[0090] Optionally, the stability of the current speed limit sign can be determined based on the appearance time of the current speed limit sign and the appearance time of each historical speed limit sign.

[0091] In one example, the duration of the current speed limit sign can be determined based on the time of its appearance and the times of appearance of each historical speed limit sign, and the stability of the current speed limit sign can be determined based on the duration of its appearance.

[0092] In another example, the occurrence interval of the current speed limit sign can be determined based on the occurrence time of the current speed limit sign and the occurrence time of each historical speed limit sign, and the stability of the current speed limit sign can be determined based on the occurrence interval of the current speed limit sign.

[0093] By obtaining at least one historical speed limit sign belonging to the same speed limit sign as the current speed limit sign from the candidate speed limit sequence, as well as the occurrence time of each historical speed limit sign, and by using the occurrence time of the current speed limit sign and the occurrence times of each historical speed limit sign, it is determined whether the current speed limit sign is stable. Only when a certain speed limit sign can be repeatedly observed within a certain period of time and conforms to a reasonable spatiotemporal distribution pattern is it determined to be stable, thereby significantly improving the recognition accuracy and avoiding false triggering.

[0094] In one possible implementation, Figure 5 This is another flowchart illustrating the process of determining whether the current speed limit sign is stable in the vehicle information processing method provided in this application embodiment, referred to [reference needed]. Figure 5 As shown, step S402 above, determining whether the current speed limit sign is stable based on the appearance time of the current speed limit sign and the appearance times of each historical speed limit sign, includes: S501. Determine the duration of the current speed limit sign based on the appearance time of the current speed limit sign and the appearance time of each historical speed limit sign.

[0095] Optionally, the duration of the current speed limit sign can be calculated based on the appearance time of the current speed limit sign and the appearance times of each historical speed limit sign.

[0096] For example, the historical speed limit signs can be sorted according to their appearance time, and the appearance duration of the current speed limit sign can be determined based on the appearance time of the earliest historical speed limit sign and the appearance time of the current speed limit sign. That is, the appearance duration is obtained by taking the appearance time of the earliest historical speed limit sign as the starting point and the appearance time of the current speed limit sign as the ending point.

[0097] S502. If the duration exceeds the preset first duration threshold, then the current speed limit sign is determined to be stable.

[0098] Optionally, the duration of the current speed limit sign can be determined. If it exceeds a preset first duration threshold, the current speed limit sign is determined to be stable.

[0099] For example, when the duration exceeds a preset first duration threshold, the current speed limit indicator is determined to be stable.

[0100] For example, the number threshold corresponding to the occurrence duration can be obtained from the preset mapping relationship between occurrence duration and number threshold based on the occurrence duration. The number of historical speed limit signs in the candidate speed limit sequence is compared with the number threshold. If the occurrence duration is greater than the preset first duration threshold and the number of historical speed limit signs in the candidate speed limit sequence is greater than the number threshold corresponding to the occurrence duration, then the current speed limit sign is determined to be stable.

[0101] By determining the duration of the current speed limit sign's appearance and, when the duration exceeds a preset first duration threshold, determining whether the current speed limit sign is stable, it is possible to filter out interference factors that affect the accuracy of the speed limit recognition process in dynamic environments such as temporary construction speed limit signs, digital billboards, and tunnel reflections, thereby achieving precise tracking of speed limit signs and improving recognition accuracy and robustness.

[0102] The above provides an exemplary description of the process of updating the candidate speed limit sequence based on the appearance time and location of each speed limit sign. The following provides an exemplary description of the process of determining the current speed limit information of a vehicle based on the candidate speed limit sequence.

[0103] In one possible implementation, Figure 6 This is a flowchart illustrating the process of determining the current speed limit information of a vehicle in the vehicle information processing method provided in this application embodiment, with reference to... Figure 6 As shown, in S202 above, the current speed limit information of the vehicle is determined based on the alternative speed limit sequence, including: S601. Determine the first speed limit identifier with the smallest speed limit value in the candidate speed limit sequence, and determine the second speed limit identifier with the smallest lateral position in the candidate speed limit sequence.

[0104] Optionally, the speed limit identifier with the smallest speed limit value in the candidate speed limit sequence can be found as the first speed limit identifier, and the speed limit identifier with the smallest lateral position in the candidate speed limit sequence can be found as the second speed limit identifier.

[0105] S602. Determine the current speed limit information of the vehicle based on the first speed limit sign and the second speed limit sign.

[0106] Optionally, after obtaining the first speed limit sign and the second speed limit sign, the speed limit values ​​of the first speed limit sign and the second speed limit sign can be compared to determine the current speed limit information of the vehicle.

[0107] For example, the maximum speed limit indicated by the first speed limit sign and the second speed limit sign can be used as the current speed limit information of the vehicle.

[0108] By identifying the first speed limit sign with the smallest speed limit value in the candidate speed limit sequence and the second speed limit sign with the smallest lateral position in the candidate speed limit sequence, and then determining the vehicle's current speed limit information based on the first and second speed limit signs, the current speed limit information can be determined by combining the most stringent speed limit sign and the speed limit sign physically closest to the vehicle. This maximizes driving safety while avoiding escalation of misjudgments caused by distant signs. Furthermore, it can effectively handle scenarios with overlapping speed limits, such as temporary speed limits and multiple speed limits.

[0109] In one possible implementation, Figure 7 This is another flowchart illustrating the process of determining the current speed limit information of a vehicle in the vehicle information processing method provided in this application embodiment, referred to [reference needed]. Figure 7 As shown, in S602 above, the current speed limit information of the vehicle is determined based on the first speed limit sign and the second speed limit sign, including: S701. If the first speed limit sign and the second speed limit sign are the same speed limit sign, then the speed limit value in the first speed limit sign or the second speed limit sign shall be used as the current speed limit information of the vehicle.

[0110] Optionally, the first speed limit sign and the second speed limit sign can be judged. If the first speed limit sign and the second speed limit sign are the same speed limit sign, that is, the speed limit value of the first speed limit sign and the second speed limit sign are the same, then the speed limit value in the first speed limit sign or the second speed limit sign can be used as the current speed limit information of the vehicle.

[0111] S702. If the first speed limit sign and the second speed limit sign are not the same speed limit sign, then determine the distance difference between the first speed limit sign and the second speed limit sign, and compare the distance difference with a preset second distance threshold; if the distance difference is greater than or equal to the preset second distance threshold, then use the speed limit value in the second speed limit sign as the current speed limit information of the vehicle; if the distance difference is less than the preset second distance threshold, then use the speed limit value in the first speed limit sign as the current speed limit information of the vehicle.

[0112] Optionally, if the first speed limit sign and the second speed limit sign are not the same speed limit sign, then the distance difference between the first speed limit sign and the second speed limit sign is determined, and the distance difference is compared with a preset second distance threshold. Here, the distance difference refers to the difference in the lateral position of the first speed limit sign and the second speed limit sign.

[0113] Optionally, if the distance difference is greater than or equal to a preset second distance threshold, the speed limit value in the second speed limit sign is used as the vehicle's current speed limit information.

[0114] Optionally, if the distance difference is less than a preset second distance threshold, the speed limit value in the first speed limit sign is used as the vehicle's current speed limit information.

[0115] By determining the distance difference between the first speed limit sign and the second speed limit sign, and when the distance difference is greater than or equal to a preset second distance threshold, the speed limit value in the second speed limit sign is used as the vehicle's current speed limit information; and when the distance difference is less than the preset second distance threshold, the speed limit value in the first speed limit sign is used as the vehicle's current speed limit information. This allows the current speed limit information to be determined jointly based on the most stringent speed limit sign and the speed limit sign that is physically closest to the vehicle. This not only ensures maximum driving safety but also avoids escalation of misjudgments caused by distant signs.

[0116] In one possible implementation, the method further includes: Update the candidate speed limit sequence based on the appearance time of each speed limit sign in the candidate speed limit sequence.

[0117] It is understandable that, when no speed limit sign is obtained, the alternative speed limit sequence can be updated based on the duration of each speed limit sign in the alternative speed limit sequence.

[0118] Optionally, the disappearance duration of each speed limit sign in the candidate speed limit sequence can be determined based on the appearance time of each speed limit sign in the candidate speed limit sequence. If the disappearance duration of a certain speed limit sign is greater than or equal to a preset disappearance threshold, then the speed limit sign can be deleted from the candidate speed limit sequence.

[0119] By updating the candidate speed limit sequence based on the occurrence time of each speed limit identifier in the candidate speed limit sequence, it is possible to avoid prolonged stagnation in an expired speed limit state, avoid the risk of illegal low speed or high speed, and at the same time improve the continuity and predictability of the speed limit identification process.

[0120] In one possible implementation, Figure 8 This is a flowchart illustrating the process of determining whether to stop displaying the vehicle's current speed limit information in the vehicle information processing method provided in this application embodiment. (Refer to...) Figure 8 As shown, in S104 above, determining whether to stop displaying the vehicle's current speed limit information based on the current driving status information includes: S801. Based on the current speed limit information, determine the driving distance threshold corresponding to the current speed limit information.

[0121] Optionally, the driving distance threshold corresponding to the current speed limit can be obtained by matching the current speed limit information from the preset mapping relationship between the current speed limit information and the driving distance.

[0122] S802. If the current vehicle travel distance is greater than or equal to the travel distance threshold, then determine to stop displaying the vehicle's current speed limit information.

[0123] Optionally, the current vehicle distance is compared with a distance threshold. If the current vehicle distance is greater than or equal to the distance threshold, the display of the vehicle's current speed limit information is stopped. If the current vehicle distance is less than the distance threshold, the display of the vehicle's current speed limit information is not stopped.

[0124] By using the current speed limit information, the system determines the corresponding driving distance threshold. It can dynamically calculate a maximum effective driving distance threshold that matches the current speed limit value itself. When the current vehicle driving distance is greater than or equal to the driving distance threshold, it stops displaying the vehicle's current speed limit information. This can prevent expired speed limit information from misleading the driver or the control system. It also supports differentiated management for different speed limit scenarios.

[0125] In one possible implementation, determining whether to stop displaying the vehicle's current speed limit information based on the current driving status information in step S104 includes: If the current vehicle's turning state is left or right, then confirm that the display of the vehicle's current speed limit information will stop.

[0126] Optionally, the current vehicle turning status can be determined. If the current vehicle turning status is left turn or right turn, then the display of the vehicle's current speed limit information can be stopped.

[0127] When the vehicle is currently turning left or right, stopping the display of the vehicle's current speed limit information can prevent the vehicle from mistakenly inheriting speed limit information when crossing roads, thereby significantly improving safety. At the same time, it can also improve user experience and the reliability of the vehicle's infotainment system.

[0128] In one possible implementation, the method also includes: Control the vehicle's movement based on the current speed limit information.

[0129] Optionally, the vehicle's current speed limit information can also be input to the adaptive cruise control (ACC) module to control the vehicle's movement.

[0130] For example, the vehicle's current speed Vtarget can be determined by referring to the following formula, and the vehicle can be controlled to travel at the current speed Vtarget:

[0131] in, Current driving speed Set the vehicle speed for the driver; that is, the cruising speed. This is the current speed limit information. The speed of the vehicle in front of the vehicle.

[0132] By determining the current driving speed by combining the current speed limit information, the speed of the vehicle in front, and the speed set by the driver, the current driving speed can be significantly improved, thus significantly enhancing driving safety. At the same time, it can also achieve automatic speed limit matching, improving driving convenience, thereby greatly reducing the driver's workload and enhancing comfort and intelligent experience.

[0133] Based on the same inventive concept, this application also provides a vehicle information processing device corresponding to the vehicle information processing method. Since the principle of the device in this application is similar to that of the vehicle information processing method described above, the implementation of the device can refer to the implementation of the method, and the repeated parts will not be described again.

[0134] Reference Figure 9 As shown, Figure 9 This is a schematic diagram of a vehicle information processing device provided in an embodiment of the present application. The device includes: an acquisition module 901, a determination module 902, a display module 903, and a stop module 904. The acquisition module 901 is used to acquire at least one speed limit sign in the driving environment where the vehicle is located in real time, and determine the appearance time and location of each speed limit sign. The determination module 902 is used to determine the current speed limit information of the vehicle based on each speed limit sign and the time and location of each speed limit sign. Display module 903 is used to display the current speed limit information and obtain the current driving status information of the vehicle after the current speed limit information is displayed. The current driving status information includes at least one of the following: the current driving distance of the vehicle and the current turning status of the vehicle. The stop module 904 is used to determine whether to stop displaying the vehicle's current speed limit information based on the current driving status information. If so, the display is stopped.

[0135] As one possible implementation, module 902 is specifically used for: The candidate speed limit sequence is updated based on the appearance time and location of each speed limit sign. The candidate speed limit sequence includes multiple speed limit signs arranged in order of appearance time. The current speed limit information for the vehicle is determined based on the alternative speed limit sequence.

[0136] As one possible implementation, module 902 is specifically used for: Iterate through each speed limit sign. For the current speed limit sign, determine whether to perform a stability check based on its position. If so, determine whether the current speed limit sign is stable based on its appearance time. If so, add the current speed limit sign to the candidate speed limit sequence based on its appearance time.

[0137] As one possible implementation, module 902 is specifically used for: Determine the horizontal position of the current speed limit sign based on its location. If the lateral position of the current speed limit sign is less than the preset distance threshold, then a stability judgment is performed on the current speed limit sign. If the lateral position of the current speed limit sign is greater than or equal to a preset distance threshold, then it is determined that the current speed limit sign will not be subjected to stability judgment.

[0138] As one possible implementation, module 902 is specifically used for: Obtain from the candidate speed limit sequence at least one historical speed limit that belongs to the same speed limit as the current speed limit, and the occurrence time of each historical speed limit; Determine whether the current speed limit sign is stable based on the appearance time of the current speed limit sign and the appearance time of each historical speed limit sign.

[0139] As one possible implementation, module 902 is specifically used for: The duration of the current speed limit sign is determined based on the appearance time of the current speed limit sign and the appearance times of each historical speed limit sign. If the duration exceeds the preset first duration threshold, the current speed limit sign is determined to be stable.

[0140] As one possible implementation, module 902 is specifically used for: Determine the first speed limit identifier with the smallest speed limit value in the candidate speed limit sequence, and determine the second speed limit identifier with the smallest lateral position in the candidate speed limit sequence; Determine the vehicle's current speed limit information based on the first and second speed limit signs.

[0141] As one possible implementation, module 902 is specifically used for: If the first speed limit sign and the second speed limit sign are the same speed limit sign, then the speed limit value in the first speed limit sign or the second speed limit sign shall be used as the current speed limit information of the vehicle. If the first speed limit sign and the second speed limit sign are not the same speed limit sign, then determine the distance difference between the first speed limit sign and the second speed limit sign, and compare the distance difference with the preset second distance threshold. If the distance difference is greater than or equal to the preset second distance threshold, the speed limit value in the second speed limit sign will be used as the vehicle's current speed limit information. If the distance difference is less than the preset second distance threshold, the speed limit value in the first speed limit sign will be used as the vehicle's current speed limit information.

[0142] As one possible implementation, module 902 is also used for: Update the candidate speed limit sequence based on the appearance time of each speed limit sign in the candidate speed limit sequence.

[0143] The processing flow of each module in the device and the interaction flow between each module can be referred to the relevant descriptions in the above method embodiments, and will not be detailed here.

[0144] This application also provides an electronic device, such as... Figure 10 As shown, Figure 10 The schematic diagram of the electronic device structure provided in this application embodiment includes: a processor 1001 and a memory 1002, and optionally, a bus 1003. The memory 1002 stores machine-readable instructions executable by the processor 1001. When the electronic device is running, the processor 1001 and the memory 1002 communicate via the bus 1003, and the processor 1001 executes the machine-readable instructions to perform the steps of the above-described vehicle information processing method.

[0145] This application also provides a computer-readable storage medium storing a computer program, which, when executed by a processor, performs the steps of the vehicle information processing method described above.

[0146] Those skilled in the art will clearly understand that, for the sake of convenience and brevity, the specific working processes of the systems and devices described above can be referred to the corresponding processes in the method embodiments, and will not be repeated here. In the several embodiments provided in this application, it should be understood that the disclosed systems, devices, and methods can be implemented in other ways. The device embodiments described above are merely illustrative. For example, the division of modules is only a logical functional division, and in actual implementation, there may be other division methods. Furthermore, multiple modules or components can be combined or integrated into another system, or some features can be ignored or not executed. Another point is that the displayed or discussed mutual coupling or direct coupling or communication connection can be through some communication interfaces; the indirect coupling or communication connection of devices or modules can be electrical, mechanical, or other forms.

[0147] Furthermore, the functional units in the various embodiments of this application can be integrated into one processing unit, or each unit can exist physically separately, or two or more units can be integrated into one unit. If the functions are implemented as software functional units and sold or used as independent products, they can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of this invention, or the part that contributes to the prior art, or a part of the technical solution, can be embodied in the form of a software product. This computer software product is stored in a storage medium and includes several instructions to cause a computer device (which may be a personal computer, server, or network device, etc.) to execute all or part of the steps of the methods described in the various embodiments of this invention. The aforementioned storage medium includes: USB flash drives, portable hard drives, read-only memory (ROM), random access memory (RAM), magnetic disks, optical disks, and other media capable of storing program code.

[0148] The above are merely specific embodiments of this application, but the scope of protection of this application is not limited thereto. Any changes or substitutions that can be easily conceived by those skilled in the art within the scope of the technology disclosed in this application should be included within the scope of protection of this application.

Claims

1. A vehicle information processing method characterized by comprising: include: The system acquires at least one speed limit sign in the driving environment where the vehicle is located in real time, and determines the occurrence time and location of each speed limit sign. Traverse each of the speed limit signs. For the current speed limit sign that has been traversed, determine whether to perform a stability judgment on the current speed limit sign based on the position of the current speed limit sign. If so, obtain at least one historical speed limit sign that belongs to the same speed limit sign as the current speed limit sign and the occurrence time of each historical speed limit sign from the candidate speed limit sequence. Based on the occurrence time of the current speed limit sign and the occurrence time of each historical speed limit sign, it is determined whether the current speed limit sign is stable. If so, the current speed limit sign is added to the candidate speed limit sequence based on the occurrence time of the current speed limit sign. The candidate speed limit sequence includes multiple speed limit signs arranged in order of occurrence time. Based on the alternative speed limit sequence, determine the current speed limit information of the vehicle; The current speed limit information is displayed, and the current driving status information of the vehicle after the current speed limit information is displayed is obtained. The current driving status information includes at least one of the following: current vehicle travel distance and current vehicle steering status. Based on the current driving status information, determine whether to stop displaying the vehicle's current speed limit information; if so, stop displaying it. The step of determining whether the current speed limit sign is stable based on the occurrence time of the current speed limit sign and the occurrence times of each historical speed limit sign includes: The duration of the current speed limit sign is determined based on the appearance time of the current speed limit sign and the appearance time of each historical speed limit sign. If the duration of occurrence exceeds a preset first duration threshold, then the current speed limit indicator is determined to be stable.

2. The vehicle information processing method according to claim 1, characterized by, The step of determining whether to perform a stability assessment on the current speed limit sign based on its location includes: Determine the lateral position of the current speed limit sign based on its location. If the lateral position of the current speed limit sign is less than a preset first distance threshold, then it is determined that the current speed limit sign is to be subjected to stability judgment. If the lateral position of the current speed limit sign is greater than or equal to a preset first distance threshold, then it is determined that the stability of the current speed limit sign will not be judged.

3. The vehicle information processing method according to claim 1, characterized by, Determining the current speed limit information of the vehicle based on the candidate speed limit sequence includes: Determine the first speed limit identifier with the smallest speed limit value in the candidate speed limit sequence, and determine the second speed limit identifier with the smallest lateral position in the candidate speed limit sequence; The current speed limit information of the vehicle is determined based on the first speed limit sign and the second speed limit sign.

4. The vehicle information processing method according to claim 3, characterized by, Determining the current speed limit information of the vehicle based on the first speed limit sign and the second speed limit sign includes: If the first speed limit sign and the second speed limit sign are the same speed limit sign, then the speed limit value in the first speed limit sign or the second speed limit sign shall be used as the current speed limit information of the vehicle. If the first speed limit sign and the second speed limit sign are not the same speed limit sign, then the distance difference between the first speed limit sign and the second speed limit sign is determined, and the distance difference is compared with a preset second distance threshold. If the distance difference is greater than or equal to a preset second distance threshold, then the speed limit value in the second speed limit identifier is used as the current speed limit information of the vehicle. If the distance difference is less than a preset second distance threshold, the speed limit value in the first speed limit sign is used as the current speed limit information of the vehicle.

5. The vehicle information processing method according to claim 1, characterized by, The method further includes: The candidate speed limit sequence is updated based on the occurrence time of each speed limit identifier in the candidate speed limit sequence.

6. An electronic device, comprising: include: The electronic device includes a processor and a memory, the memory storing machine-readable instructions executable by the processor, which, when the electronic device is in operation, are executed by the processor to perform the steps of the vehicle information processing method as described in any one of claims 1 to 5.

Images