A vehicle warning method, device and electronic equipment

Abstract

The application provides a vehicle early warning method, device and electronic equipment, comprising: starting a first Bluetooth device installed in a vehicle in response to a vehicle starting request; controlling the first Bluetooth device to scan a mobile Bluetooth signal sent by other Bluetooth devices in real time, the other Bluetooth devices being installed on a mobile terminal outside the vehicle; receiving a distance value between the vehicle and each other Bluetooth device fed back by the first Bluetooth device, the distance value being determined by the first Bluetooth device according to the received mobile Bluetooth signal sent by each other Bluetooth device; and determining a corresponding early warning strategy according to the distance value between the vehicle and each other Bluetooth device. The application determines the distance value between the vehicle and other mobile devices through the Bluetooth device, thereby performing corresponding early warning prompting, improving the monitoring range of the visual blind area and reducing the hardware cost.

Description

Technical Field

[0001] This application relates to the field of vehicle warning technology, and in particular to a vehicle warning method, device and electronic equipment. Background Technology

[0002] Currently, most solutions for addressing blind spots and improving driving safety employ BlindSpot Detection (BSD) systems. These systems primarily utilize adaptive signal processing and target recognition methods, using intelligent monitoring probes installed on the vehicle and other auxiliary equipment such as radar, alarms, and displays to identify and alert vehicles and pedestrians in the vehicle's blind spots.

[0003] However, vehicles have a large blind spot, and traditional BSD systems have a relatively small coverage area. This means that achieving full coverage of the blind spot would require high hardware costs, and traditional warning methods are too simplistic and cannot be applied to various scenarios. Summary of the Invention

[0004] In view of this, the purpose of this application is to provide at least one vehicle warning method, device and electronic device that provides corresponding warning prompts by using the distance value between the vehicle and other mobile devices via Bluetooth, thereby improving the visual blind spot monitoring range and reducing hardware costs.

[0005] This application mainly includes the following aspects:

[0006] In a first aspect, embodiments of this application provide a vehicle warning method, the method comprising: in response to a vehicle start request, activating a first Bluetooth device installed inside the vehicle; controlling the first Bluetooth device to scan in real time for mobile Bluetooth signals emitted by other Bluetooth devices, the other Bluetooth devices being installed on mobile terminals outside the vehicle; receiving distance values ​​between the vehicle and each other Bluetooth device fed back by the first Bluetooth device, the distance values ​​being determined by the first Bluetooth device based on the received mobile Bluetooth signals emitted by each other Bluetooth device; and determining a corresponding warning strategy based on the distance values ​​between the vehicle and each other Bluetooth device.

[0007] In one possible implementation, the corresponding warning strategy is determined by: acquiring the steering wheel rotation angle; determining the vehicle's driving state based on the steering wheel rotation angle; detecting changes in the distance value between the vehicle and other Bluetooth devices within a preset time period based on the received distance value, thereby determining the relative approach speed between the vehicle and the mobile terminal to which the other Bluetooth devices belong based on the distance value change; and determining the corresponding warning strategy based on the relative approach speed between the vehicle and the mobile terminal to which the other Bluetooth devices belong, the vehicle's driving state, and the distance value between the vehicle and the mobile terminal to which the other Bluetooth devices belong.

[0008] In one possible implementation, the vehicle's driving state includes a lane-changing state. The step of determining a corresponding warning strategy based on the relative approach speed between the vehicle and other Bluetooth device mobile terminals, the vehicle's driving state, and the distance between the vehicle and other Bluetooth device mobile terminals includes: if the vehicle's driving state is a lane-changing state, determining whether the relative approach speed between the vehicle and other Bluetooth device mobile terminals is within a first preset speed range; if the relative approach speed between the vehicle and other Bluetooth device mobile terminals is within the first preset speed range, determining whether the distance between the vehicle and other Bluetooth device mobile terminals is less than a first preset distance; if the distance between the vehicle and other Bluetooth device mobile terminals is less than the first preset distance, determining a corresponding warning strategy based on the first preset distance range to which the distance between the vehicle and other Bluetooth device mobile terminals belongs.

[0009] In one possible implementation, the first preset distance interval includes a first distance sub-interval, a second distance sub-interval, and a third distance sub-interval. The lower limit of the first distance sub-interval is greater than the upper limit of the second distance sub-interval, and the lower limit of the second distance sub-interval is greater than the upper limit of the third distance sub-interval. The step of determining the corresponding warning strategy based on the first preset distance interval to which the distance between the vehicle and the mobile terminal belonging to other Bluetooth devices belongs includes: if the distance between the vehicle and the mobile terminal belonging to other Bluetooth devices belongs to the first distance sub-interval, generating a warning message; sending the warning message to an in-vehicle display device for display, and sending it via the first Bluetooth device to the mobile client belonging to the second Bluetooth device and the mobile terminal belonging to other Bluetooth devices; if the distance between the vehicle and the mobile terminal belonging to other Bluetooth devices belongs to the second distance sub-interval, broadcasting the corresponding warning message via a voice broadcast device installed in the vehicle; and if the distance between the vehicle and the mobile terminal belonging to other Bluetooth devices belongs to the third distance sub-interval, initiating emergency braking of the vehicle.

[0010] In one possible implementation, the vehicle's driving state includes a turning state. The step of determining the corresponding warning strategy based on the relative approach speed between the vehicle and other Bluetooth device mobile terminals, the vehicle's driving state, and the distance between the vehicle and other Bluetooth device mobile terminals further includes: if the vehicle's driving state is a turning state, determining whether the relative approach speed between the vehicle and other Bluetooth device mobile terminals is within a second preset speed range; if the relative approach speed between the vehicle and other Bluetooth device mobile terminals is within the second preset speed range, determining the corresponding warning strategy based on the second preset distance range to which the distance between the vehicle and other Bluetooth device mobile terminals belongs.

[0011] In one possible implementation, the second preset distance interval includes a fourth distance sub-interval, a fifth distance sub-interval, and a sixth distance sub-interval. The lower limit of the fourth distance sub-interval is greater than the upper limit of the fifth distance sub-interval, and the lower limit of the fifth distance sub-interval is greater than the upper limit of the sixth distance sub-interval. The step of determining the corresponding warning strategy based on the second preset distance interval to which the distance between the vehicle and the mobile terminal belonging to other Bluetooth devices belongs includes: if the distance between the vehicle and the mobile terminal belonging to other Bluetooth devices belongs to the fourth distance sub-interval, generating a warning message; sending the warning message to the in-vehicle display device for display, and sending it via the first Bluetooth device to the mobile client belonging to the second Bluetooth device and the mobile terminal belonging to other Bluetooth devices; if the distance between the vehicle and the mobile terminal belonging to other Bluetooth devices belongs to the fifth distance sub-interval, broadcasting the corresponding warning message via a voice broadcast device installed inside the vehicle; and if the distance between the vehicle and the mobile terminal belonging to other Bluetooth devices belongs to the sixth distance sub-interval, initiating emergency braking of the vehicle.

[0012] In one possible implementation, if the vehicle is turning, the method further includes determining whether the relative approach speed between the vehicle and the mobile terminal to which other Bluetooth devices belong is within a second preset speed range.

[0013] The turning radius of the front and rear wheels is determined based on the steering wheel rotation angle. The area enclosed by the front wheel trajectory formed by the front wheel turning radius and the rear wheel trajectory formed by the rear wheel turning radius is defined as the vehicle's turning blind spot. It is then determined whether the distance between the vehicle and other Bluetooth-enabled mobile terminals is within the safe distance range corresponding to the vehicle's turning blind spot. If the distance is within this range, the relative approach speed between the vehicle and other Bluetooth-enabled mobile terminals is determined to be within a second preset speed range. If the distance is not within this range, a corresponding warning is issued via the vehicle's in-vehicle voice broadcast device. If, after a preset time, the distance still is not within the safe distance range, emergency braking is initiated.

[0014] In one possible implementation, the vehicle driving state is determined as follows: if the steering wheel rotation angle is within a first preset angle range, the vehicle driving state is determined to be a lane-changing state; if the steering wheel rotation angle is within a second preset angle range, the vehicle driving state is determined to be a turning state, wherein the lower limit of the first preset angle range is greater than the upper limit of the second preset angle range.

[0015] Secondly, embodiments of this application provide a warning device, comprising: a startup module for starting a first Bluetooth device installed inside the vehicle in response to a vehicle startup request; a control module for controlling the first Bluetooth device to scan for mobile Bluetooth signals emitted by other Bluetooth devices in real time, wherein the other Bluetooth devices are installed on mobile terminals outside the vehicle; a receiving module for receiving distance values ​​between the vehicle and each other Bluetooth device fed back by the first Bluetooth device, wherein the distance values ​​are determined by the first Bluetooth device based on the mobile Bluetooth signals emitted by each other Bluetooth device; and a determination module for determining a corresponding warning strategy based on the distance values ​​between the vehicle and each other Bluetooth device.

[0016] Thirdly, embodiments of this application also provide an electronic device, including: a processor, a memory, and a bus. The memory stores machine-readable instructions executable by the processor. When the electronic device is running, the processor communicates with the memory via the bus. The machine-readable instructions are executed by the processor to perform the steps of the vehicle warning method during vehicle driving as described in the first aspect or any possible implementation of the first aspect.

[0017] This application provides a vehicle warning method, device, and electronic device, including: activating a first Bluetooth device installed inside the vehicle in response to a vehicle start request; controlling the first Bluetooth device to scan for mobile Bluetooth signals emitted by other Bluetooth devices in real time, wherein the other Bluetooth devices are installed on mobile terminals outside the vehicle; receiving distance values ​​between the vehicle and each other Bluetooth device fed back by the first Bluetooth device, wherein the distance values ​​are determined by the first Bluetooth device based on the received mobile Bluetooth signals emitted by each other Bluetooth device; and determining a corresponding warning strategy based on the distance values ​​between the vehicle and each other Bluetooth device. This application utilizes the distance values ​​between the Bluetooth device and the vehicle and other mobile devices, and sets different distance sub-intervals to provide different forms of warning prompts, thereby improving the blind spot monitoring range, reducing hardware costs, and providing the most effective hazard warnings in different situations.

[0018] To make the above-mentioned objectives, features and advantages of this application more apparent and understandable, preferred embodiments are described below in detail with reference to the accompanying drawings. Attached Figure Description

[0019] 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.

[0020] Figure 1 A flowchart of a vehicle warning method provided in an embodiment of this application is shown;

[0021] Figure 2 This application provides a flowchart illustrating the steps for determining an early warning strategy according to an embodiment. Figure 1 ;

[0022] Figure 3 This application provides a flowchart illustrating the steps for determining an early warning strategy according to an embodiment. Figure 2 ;

[0023] Figure 4 This application provides a flowchart illustrating the steps for determining an early warning strategy according to an embodiment. Figure 3 ;

[0024] Figure 5 This application illustrates a flowchart of the steps for determining an early warning strategy according to an embodiment of the present application. Figure 4 ;

[0025] Figure 6 This application provides a flowchart illustrating the steps for determining an early warning strategy according to an embodiment. Figure 5 ;

[0026] Figure 7 This paper shows a schematic diagram of the structure of a vehicle warning device provided in an embodiment of this application;

[0027] Figure 8 A schematic diagram of the structure of an electronic device provided in an embodiment of this application is shown. Detailed Implementation

[0028] 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 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.

[0029] 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.

[0030] Blind spots during driving are mainly caused by factors such as vehicle height, seat height, hood length, lane changes, or turns. If drivers fail to pay attention to warning signs in time, it will pose a great threat to safe driving and cause unnecessary trouble for pedestrians and other vehicles.

[0031] Furthermore, current BSD systems generally use radar to scan obstacles. Due to the limitations of radar signal propagation paths, their coverage area is relatively small, and the blind spot area is relatively large. In addition, millimeter-wave radar BSD cannot identify obstacle types and is greatly affected by environmental interference, resulting in a very high false alarm rate. This reduces the overall accuracy of the BSD system's warning prompts and increases hardware costs.

[0032] Based on this, embodiments of this application provide a vehicle warning method, device, and electronic device, which uses the distance value between the vehicle and other mobile devices via Bluetooth to provide corresponding warning prompts, thereby improving the detection range of blind spots and reducing hardware costs, as detailed below:

[0033] Please see Figure 1 , Figure 1 A flowchart illustrating a vehicle warning method provided in an embodiment of this application is shown. The method provided in this application can be applied to a controller inside a vehicle. Figure 1 As shown in the figures, the method provided in this application includes the following steps:

[0034] S100, in response to the vehicle start request, starts the first Bluetooth device installed inside the vehicle.

[0035] In one specific embodiment, a first Bluetooth device is connected to the controller on the vehicle. The first Bluetooth device can be a low-power Bluetooth module that supports broadcast mode. When the vehicle is powered on and started, the first Bluetooth device starts up and begins to work simultaneously.

[0036] S110: Control the first Bluetooth device to scan for mobile Bluetooth signals emitted by other Bluetooth devices in real time.

[0037] Other Bluetooth devices are installed on mobile terminals outside the vehicle. These mobile terminals can be mobile phones carried by pedestrians, other vehicles, etc. As long as the first Bluetooth device is turned on, it can scan and obtain Bluetooth signals within a certain area. Moreover, the Bluetooth signal propagates in a radiating manner in all directions, which increases the detection range of other Bluetooth devices in the vehicle's blind spot and reduces operating costs.

[0038] Furthermore, in this application, the mobile terminal needs to first enable the Bluetooth device set on it in order to realize the Bluetooth interactive communication function.

[0039] S120: Receive the distance values ​​between the vehicle and each other Bluetooth device fed back by the first Bluetooth device.

[0040] The distance value is determined by the first Bluetooth device based on the mobile Bluetooth signals received from each other Bluetooth device.

[0041] In one specific embodiment, the first Bluetooth device can perform range measurement RSSI. Based on the strength of the acquired mobile Bluetooth signal, it calculates the distance between the two Bluetooth devices through mathematical relationships, thereby realizing the conversion of signal strength into distance value measurement.

[0042] S130. Determine the corresponding warning strategy based on the distance value between the vehicle and each other Bluetooth device.

[0043] Based on the distance values ​​received from the first Bluetooth device and each other Bluetooth device, the distance between the vehicle and mobile terminals within the coverage area of ​​the mobile Bluetooth signal can be monitored, and a corresponding warning strategy can be determined based on the distance values.

[0044] In a preferred embodiment, please refer to Figure 2 , Figure 2 This application provides a flowchart illustrating the steps for determining an early warning strategy according to an embodiment. Figure 1 .like Figure 2 As shown, the corresponding early warning strategy is determined in the following ways:

[0045] S200: Obtain the rotation angle of the steering wheel.

[0046] S210. Determine the vehicle's driving status based on the steering wheel rotation angle.

[0047] Specifically, the vehicle's driving status includes, but is not limited to, at least one of the following: driving straight, reversing, parking, changing lanes, and turning. The vehicle's driving status can be determined by combining the steering wheel rotation angle and the vehicle's speed. When the vehicle's speed is zero, it can be directly determined that the vehicle is parked. When the vehicle's speed is not zero, i.e., the vehicle is confirmed to be in motion, the steering wheel rotation angle can be used to determine whether the vehicle is changing lanes or turning.

[0048] S220: Based on the received distance value between the vehicle and other Bluetooth devices, detect the change in the distance value within a preset time period, and determine the relative approach speed between the vehicle and the mobile terminal to which the other Bluetooth devices belong based on the change in the distance value.

[0049] The relative approach speed between the vehicle and other Bluetooth devices can be determined based on the rate of change in the strength of the mobile Bluetooth signal detected by the first Bluetooth device. The magnitude of the relative approach speed can then be used for further processing.

[0050] S230. Determine the corresponding warning strategy based on the relative approach speed between the vehicle and other Bluetooth devices' mobile terminals, the vehicle's driving status, and the distance between the vehicle and other Bluetooth devices' mobile terminals.

[0051] When the vehicle's speed is not zero, the distance between the vehicle and other Bluetooth devices is constantly changing because the vehicle is in motion. Therefore, different warning strategies need to be determined based on the changes in distance and the relative approach speed.

[0052] In a preferred embodiment, the vehicle's driving status can be determined in the following way:

[0053] If the steering wheel rotation angle is within the first preset angle range, the vehicle's driving state is determined to be a lane change state; if the steering wheel rotation angle is within the second preset angle range, the vehicle's driving state is determined to be a turning state. The lower limit of the first preset angle range is greater than the upper limit of the second preset angle range.

[0054] Please see Figure 3 , Figure 3 This application provides a flowchart illustrating the steps for determining an early warning strategy according to an embodiment. Figure 2 .like Figure 3 As shown, step S230 includes:

[0055] S300. If the vehicle is in a lane-changing state, determine whether the relative approach speed between the vehicle and the mobile terminal to which other Bluetooth devices belong is within the first preset speed range.

[0056] S310. If the relative approach speed between the vehicle and the mobile terminal to which other Bluetooth devices belong is within the first preset speed range, then determine whether the distance between the vehicle and the mobile terminal to which other Bluetooth devices belong is less than the first preset distance.

[0057] In one specific embodiment, when the vehicle is in a lane-changing state, the vehicle speed may be relatively fast. Therefore, the first preset speed range can be set higher according to actual needs. Similarly, the first preset distance can also be set higher. This can avoid the situation of warning delay caused by excessive vehicle speed.

[0058] S320. If the distance between the vehicle and the mobile terminal to which other Bluetooth devices belong is less than a first preset distance, then determine the corresponding warning strategy according to the first preset distance range to which the distance between the vehicle and the mobile terminal to which other Bluetooth devices belong.

[0059] The first preset distance interval includes a first distance sub-interval, a second distance sub-interval, and a third distance sub-interval. The lower limit of the first distance sub-interval is greater than the upper limit of the second distance sub-interval, and the lower limit of the second distance sub-interval is greater than the upper limit of the third distance sub-interval.

[0060] In one specific embodiment, please refer to Figure 4 , Figure 4 This application provides a flowchart illustrating the steps for determining an early warning strategy according to an embodiment. Figure 3 .like Figure 4 As shown, step S320 includes:

[0061] S3201. If the distance between the vehicle and the mobile terminal of another Bluetooth device belongs to the first distance sub-interval, a warning message is generated.

[0062] S3202. Send the warning message to the vehicle display device for display, and send it to the mobile client of the second Bluetooth device and the mobile terminal of other Bluetooth devices through the first Bluetooth device.

[0063] The mobile client is used by the vehicle driver. The second Bluetooth device is installed in the driver's mobile client, which can be the driver's mobile phone. In this application, the driver's mobile client needs to turn on Bluetooth and connect to the first Bluetooth device on the vehicle being driven. Communication with the central control device is achieved through the first Bluetooth device, which enables message sharing with the central control device.

[0064] For special groups, such as those with visual or hearing impairments, who may not be able to quickly perceive horns or distances to other vehicles, and for some drivers who rely on mobile navigation devices while driving and pay little attention to the vehicle's display, thus failing to recognize blind spots, this application addresses this issue by monitoring mobile Bluetooth signals. When blind spots occur, such as during turns or lane changes, warnings are sent to the driver, pedestrians, and other vehicles. Drivers no longer need to focus on the vehicle's display, and pedestrians and other vehicles can receive the warnings via Bluetooth broadcast. This addresses the needs of special groups and effectively prevents driving accidents.

[0065] In one specific embodiment, the first Bluetooth device sends the warning message to the second Bluetooth device and other Bluetooth devices in the following manner:

[0066] The warning message is sent to other Bluetooth devices via Bluetooth broadcast, or via a communication channel established through pre-pairing and connection with a second Bluetooth device.

[0067] S3203. If the distance between the vehicle and the mobile terminal of another Bluetooth device belongs to the second distance sub-interval, the corresponding warning prompt shall be broadcast through the voice broadcasting device installed in the vehicle.

[0068] S3204. If the distance between the vehicle and the mobile terminal of other Bluetooth devices belongs to the third distance sub-interval, then initiate emergency braking of the vehicle.

[0069] In one specific embodiment, as the distance between the vehicle and other Bluetooth devices' mobile terminals decreases, the corresponding warning method is adjusted in a timely manner.

[0070] Please see Figure 5 , Figure 5 This application provides a flowchart illustrating the steps for determining an early warning strategy according to an embodiment. Figure 4 .like Figure 5 As shown, step S230 further includes:

[0071] S400. If the vehicle is turning, determine whether the relative approach speed between the vehicle and the mobile terminal of other Bluetooth devices is within the second preset speed range.

[0072] In a preferred embodiment, if the vehicle is turning, the method further includes determining whether the relative approach speed between the vehicle and the mobile terminal of another Bluetooth device is within a second preset speed range.

[0073] The turning radius of the front and rear wheels is determined based on the steering wheel rotation angle. The area enclosed by the front wheel trajectory formed by the front wheel turning radius and the rear wheel trajectory formed by the rear wheel turning radius is defined as the vehicle's turning blind spot. It is then determined whether the distance between the vehicle and other Bluetooth devices is within the safe distance range of the blind spot. If the distance is within this range, the relative approach speed between the vehicle and other Bluetooth devices is determined to be within a second preset speed range. If the distance is not within this range, a warning is issued via the vehicle's built-in voice broadcast device. If, after a preset time, the distance still is not within the safe distance range, emergency braking is initiated.

[0074] Specifically, when a vehicle is turning, especially when turning right, the obstructed view and the difference in turning radius between the front and rear wheels create a constantly changing inner wheel difference. This inner wheel difference creates a "right-turn blind spot" for the driver. If other vehicles or pedestrians appear in this blind spot and the driver is not alerted, it can easily lead to very serious consequences. Therefore, when a right-turn blind spot is detected, it is necessary to first ensure that no pedestrians are present in the blind spot, or if a pedestrian is present, to alert the driver to ensure driving safety.

[0075] S410. If the relative approach speed between the vehicle and the mobile terminal to which other Bluetooth devices belong is within the second preset speed range, then determine whether the distance between the vehicle and the mobile terminal to which other Bluetooth devices belong is less than the second preset distance.

[0076] S420. If the distance between the vehicle and the mobile terminal to which other Bluetooth devices belong is less than the second preset distance, then determine the corresponding warning strategy according to the second preset distance range to which the distance between the vehicle and the mobile terminal to which other Bluetooth devices belong.

[0077] Specifically, since the vehicle speed will not be too high when turning, the range of the second preset speed range can be appropriately reduced so that the lower limit of the first preset speed range is greater than the upper limit of the second preset speed range. Similarly, the second preset distance is less than the first preset distance.

[0078] The second preset distance interval includes a fourth distance sub-interval, a fifth distance sub-interval, and a sixth distance sub-interval. The lower limit of the fourth distance sub-interval is greater than the upper limit of the fifth distance sub-interval, and the lower limit of the fifth distance sub-interval is greater than the upper limit of the sixth distance sub-interval. For example, the fourth distance sub-interval can be [3, 2), the fifth distance sub-interval can be [2, 1), and the sixth distance sub-interval can be [1, 0.5).

[0079] In one specific embodiment, please refer to Figure 6 , Figure 6 This application provides a flowchart illustrating the steps for determining an early warning strategy according to an embodiment. Figure 5 .like Figure 6 As shown, step S420 further includes:

[0080] S4201. If the distance between the vehicle and other Bluetooth devices belongs to the mobile terminal, the distance value belongs to the fourth distance sub-interval, then a warning message is generated.

[0081] S4202. Send the warning message to the vehicle display device for display, and send it to the mobile client of the second Bluetooth device and the mobile terminal of other Bluetooth devices through the first Bluetooth device.

[0082] S4203. If the distance between the vehicle and other Bluetooth devices belongs to the fifth distance sub-interval, the corresponding warning prompt will be broadcast through the voice broadcasting device installed in the vehicle.

[0083] S4204. If the distance between the vehicle and the mobile terminal of another Bluetooth device belongs to the sixth distance sub-interval, then initiate emergency braking of the vehicle.

[0084] In practice, the contents of steps S4201 to S4204 are similar to those of steps S3201 to S3204, and the repetitions will not be repeated.

[0085] Based on the same concept, this application also provides a vehicle warning device corresponding to the vehicle warning method provided in the above embodiments. Since the principle of the device in this application is similar to the vehicle warning method in the above embodiments, the implementation of the device can refer to the implementation of the method, and the repeated parts will not be described again.

[0086] Please see Figure 7 , Figure 7 A schematic diagram of the structure of a vehicle warning device provided in an embodiment of this application is shown. Figure 7 As shown, it includes:

[0087] The startup module 500 is used to start the first Bluetooth device installed inside the vehicle in response to a vehicle startup request.

[0088] The control module 510 is used to control the first Bluetooth device to scan for mobile Bluetooth signals emitted by other Bluetooth devices in real time. The other Bluetooth devices are mobile terminals installed on the outside of the vehicle.

[0089] The receiving module 520 is used to receive the distance values ​​between the vehicle and each other Bluetooth device fed back by the first Bluetooth device. The distance values ​​are determined by the first Bluetooth device based on the mobile Bluetooth signals emitted by each other Bluetooth device.

[0090] The determination module 530 is used to determine the corresponding warning strategy based on the distance value between the vehicle and each other Bluetooth device.

[0091] Based on the same application concept, please refer to Figure 8 , Figure 8 This illustration shows a schematic diagram of an electronic device according to an embodiment of this application. The electronic device 600 includes a processor 610, a memory 620, and a bus 630. The memory 620 stores machine-readable instructions executable by the processor 610. When the electronic device 600 is running, the processor 610 communicates with the memory 620 via the bus 630. The machine-readable instructions, when executed by the processor 610, perform the steps of any of the vehicle warning methods described in the above embodiments.

[0092] Based on the same concept, embodiments of this application also provide a computer-readable storage medium storing a computer program, which, when executed by a processor, performs the steps of the vehicle warning method provided in the above embodiments.

[0093] 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 foregoing 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 units is only a logical functional division; in actual implementation, there may be other division methods. Furthermore, multiple units or components may be combined or integrated into another system, or some features may be ignored or not executed. Another point is that the displayed or discussed mutual coupling or direct coupling or communication connection may be through some communication interfaces; the indirect coupling or communication connection of devices or units may be electrical, mechanical, or other forms.

[0094] The units described as separate components may or may not be physically separate. The components shown as units may or may not be physical units; that is, they may be located in one place or distributed across multiple network units. Some or all of the units can be selected to achieve the purpose of this embodiment according to actual needs.

[0095] In addition, 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.

[0096] If the aforementioned functions are implemented as software functional units and sold or used as independent products, they can be stored in a processor-executable, non-volatile, computer-readable storage medium. Based on this understanding, the technical solution of this application, in essence, 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 application. The aforementioned storage medium includes various media capable of storing program code, such as USB flash drives, portable hard drives, read-only memory (ROM), random access memory (RAM), magnetic disks, or optical disks.

[0097] The above are merely specific embodiments of this application, but the scope of protection of this application is not limited thereto. Any variations 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. Therefore, the scope of protection of this application should be determined by the scope of the claims.

Claims

1. A vehicle early warning method, characterized in that, The method includes: In response to a vehicle start request, the first Bluetooth device installed inside the vehicle is activated; The system controls the first Bluetooth device to scan for mobile Bluetooth signals emitted by other Bluetooth devices in real time, wherein the other Bluetooth devices are mobile terminals installed on the outside of the vehicle. The first Bluetooth device receives distance values ​​between the vehicle and each other Bluetooth device, which are determined by the first Bluetooth device based on the mobile Bluetooth signals received from each other Bluetooth device. Based on the distance values ​​between the vehicle and each other Bluetooth device continuously detected within a preset time, the relative approach speed between the vehicle and each other Bluetooth device is determined. Obtain the rotation angle of the steering wheel, and determine the driving state of the vehicle based on the rotation angle of the steering wheel; Based on the relative approach speed, the vehicle's driving status, and the distance between the vehicle and the mobile terminal to which other Bluetooth devices belong, a corresponding warning strategy is determined. Specifically, based on the vehicle's driving status, the higher the warning level corresponding to the warning action indicated by the warning strategy, the closer the distance between the vehicle and other Bluetooth-enabled mobile terminals becomes to the vehicle's location. The early warning strategy includes broadcasting early warning information via a first Bluetooth device to the mobile client belonging to the second Bluetooth device and the mobile terminals belonging to other Bluetooth devices. The vehicle's driving status includes lane changing and turning. The steps for determining the corresponding warning strategy based on the relative approach speed between the vehicle and other Bluetooth-enabled mobile terminals, the vehicle's driving status, and the distance between the vehicle and other Bluetooth-enabled mobile terminals include: If the vehicle is in a lane-changing state, it is determined whether the relative approach speed is within a first preset speed range. If the relative approach speed is within the first preset speed range, it is determined whether the distance value is less than a first preset distance. If the distance value is less than the first preset distance, the corresponding warning strategy is determined according to the first preset distance range to which the distance value belongs. If the vehicle is turning, the turning radius of the front wheels and the turning radius of the rear wheels are determined according to the rotation angle of the steering wheel. The area enclosed by the front wheel trajectory formed by the front wheel turning radius and the rear wheel trajectory formed by the rear wheel turning radius is defined as the vehicle's turning blind spot. It is determined whether the distance value is within the blind spot safety distance range corresponding to the vehicle's turning blind spot. If the distance value is within the blind spot safety distance range, it is determined whether the relative approach speed is within the second preset speed range. If the relative approach speed is within the second preset speed range, then it is determined whether the distance value is less than the second preset distance. If the distance value is less than the second preset distance, then a corresponding warning strategy is determined according to the second preset distance range to which the distance value belongs. If the distance value between the vehicle and the mobile terminal of other Bluetooth devices is not within the blind zone safety distance range corresponding to the vehicle's turning blind zone, then a corresponding warning prompt is broadcast through the voice broadcast device installed inside the vehicle. If, after a preset time, the distance between the vehicle and the mobile terminal of other Bluetooth devices is still not within the safe distance range of the blind spot corresponding to the vehicle's turning blind spot, then emergency braking of the vehicle will be initiated. Wherein, the lower limit of the first preset speed range is greater than the upper limit of the second preset speed range, and the second preset distance is less than the first preset distance.

2. The method according to claim 1, characterized in that, The vehicle's driving status and the relative approach speed are determined by the following methods: Based on the received distance values ​​between the vehicle and other Bluetooth devices, the system detects changes in these distance values ​​over a preset time period, thereby determining the relative approach speed between the vehicle and the mobile terminals to which the other Bluetooth devices belong, according to these changes in distance values.

3. The method according to claim 2, characterized in that, The first preset distance interval includes a first distance sub-interval, a second distance sub-interval, and a third distance sub-interval. The lower limit of the second distance sub-interval is greater than the upper limit of the third distance sub-interval. The step of determining the corresponding warning strategy based on the first preset distance range between the vehicle and other Bluetooth devices' mobile terminals includes: If the distance between the vehicle and other Bluetooth devices belongs to the mobile terminal, a warning message is generated. The warning message is sent to the in-vehicle display device for display, and is also sent to the mobile client of the second Bluetooth device and the mobile terminal of other Bluetooth devices via the first Bluetooth device. If the distance between the vehicle and other Bluetooth devices belongs to the second distance sub-interval, the corresponding warning prompt will be broadcast through the voice broadcasting device installed in the vehicle. If the distance between the vehicle and other Bluetooth devices belongs to the third distance sub-interval, then emergency braking of the vehicle will be initiated.

4. The method according to claim 1, characterized in that, The method further includes: If the relative approach speed between the vehicle and the mobile terminal to which other Bluetooth devices belong is within the second preset speed range, then the corresponding warning strategy is determined according to the second preset distance range to which the distance value between the vehicle and the mobile terminal to which other Bluetooth devices belong.

5. The method according to claim 4, characterized in that, The second preset distance interval includes a fourth distance sub-interval, a fifth distance sub-interval, and a sixth distance sub-interval. The lower limit of the fourth distance sub-interval is greater than the upper limit of the fifth distance sub-interval, and the lower limit of the fifth distance sub-interval is greater than the upper limit of the sixth distance sub-interval. The step of determining the corresponding warning strategy based on the second preset distance interval between the distance values ​​between the vehicle and other Bluetooth devices' mobile terminals includes: If the distance between the vehicle and other Bluetooth devices belongs to the fourth distance sub-interval, a warning message will be generated. The warning message is sent to the in-vehicle display device for display, and is also sent to the mobile client of the second Bluetooth device and the mobile terminal of other Bluetooth devices via the first Bluetooth device. If the distance between the vehicle and other Bluetooth devices belongs to the fifth distance sub-interval, the corresponding warning prompt will be broadcast through the voice broadcasting device installed in the vehicle. If the distance between the vehicle and other Bluetooth devices belongs to the sixth distance sub-interval, then emergency braking of the vehicle will be initiated.

6. The method according to claim 1, characterized in that, The vehicle's driving status is determined in the following ways: If the steering wheel rotation angle is within the first preset angle range, the vehicle's driving state is determined to be a lane-changing state. If the steering wheel rotation angle is within the second preset angle range, the vehicle's driving state is determined to be a turning state, wherein the lower limit of the first preset angle range is greater than the upper limit of the second preset angle range.

7. A vehicle warning device, characterized in that, The device includes: The startup module is used to start the first Bluetooth device installed inside the vehicle in response to a vehicle startup request. The control module is used to control the first Bluetooth device to scan for mobile Bluetooth signals emitted by other Bluetooth devices in real time, wherein the other Bluetooth devices are installed on mobile terminals outside the vehicle. A receiving module is used to receive distance values ​​between the vehicle and each other Bluetooth device fed back by a first Bluetooth device, the distance values ​​being determined by the first Bluetooth device based on the mobile Bluetooth signals received from each other Bluetooth device; The determination module is used to determine the relative approach speed between the vehicle and each other Bluetooth device based on the distance values ​​continuously detected between the vehicle and each other Bluetooth device within a preset time, obtain the rotation angle of the steering wheel, determine the driving state of the vehicle based on the rotation angle of the steering wheel, and determine the corresponding warning strategy based on the relative approach speed, the driving state of the vehicle, and the distance values ​​between the vehicle and the mobile terminals to which the other Bluetooth devices belong. Specifically, based on the vehicle's driving status, the higher the warning level corresponding to the warning action indicated by the warning strategy, the closer the distance between the vehicle and other Bluetooth-enabled mobile terminals becomes to the vehicle's location. The early warning strategy includes broadcasting early warning information via a first Bluetooth device to the mobile client belonging to the second Bluetooth device and the mobile terminals belonging to other Bluetooth devices. The vehicle's driving status includes lane changing and turning states, and the determining module is further used for: If the vehicle is in a lane-changing state, it is determined whether the relative approach speed is within a first preset speed range. If the relative approach speed is within the first preset speed range, it is determined whether the distance value is less than a first preset distance. If the distance value is less than the first preset distance, the corresponding warning strategy is determined according to the first preset distance range to which the distance value belongs. If the vehicle is turning, the turning radius of the front wheels and the turning radius of the rear wheels are determined according to the rotation angle of the steering wheel. The area enclosed by the front wheel trajectory formed by the front wheel turning radius and the rear wheel trajectory formed by the rear wheel turning radius is defined as the vehicle's turning blind spot. It is determined whether the distance value is within the blind spot safety distance range corresponding to the vehicle's turning blind spot. If the distance value is within the blind spot safety distance range, it is determined whether the relative approach speed is within the second preset speed range. If the relative approach speed is within the second preset speed range, then it is determined whether the distance value is less than the second preset distance. If the distance value is less than the second preset distance, then a corresponding warning strategy is determined according to the second preset distance range to which the distance value belongs. If the distance value between the vehicle and the mobile terminal of other Bluetooth devices is not within the blind zone safety distance range corresponding to the vehicle's turning blind zone, then a corresponding warning prompt is broadcast through the voice broadcast device installed inside the vehicle. If, after a preset time, the distance between the vehicle and the mobile terminal of other Bluetooth devices is still not within the safe distance range of the blind spot corresponding to the vehicle's turning blind spot, then emergency braking of the vehicle will be initiated. Wherein, the lower limit of the first preset speed range is greater than the upper limit of the second preset speed range, and the second preset distance is less than the first preset distance.

8. An electronic device, characterized in that, include: The device includes a processor, a memory, and a bus. The memory stores machine-readable instructions executable by the processor. When the electronic device is running, the processor communicates with the memory via the bus, and the machine-readable instructions are executed by the processor to perform the steps of the vehicle warning method as described in any one of claims 1 to 6.

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