Vehicle multifunctional virtual safety warning method and device, vehicle and medium

Abstract

The invention relates to the technical field of vehicles, in particular to a multifunctional virtual safety warning method and device for a vehicle, the vehicle and a medium, and the method comprises the steps: obtaining an environment sensing result of the current vehicle when the current vehicle is in a preset fault state, and / or the current vehicle is in a preset temporary parking state; determining a target warning mode matched with the environment sensing result from a preset warning mode database, and performing virtual safety warning based on the target warning mode; and when the surrounding vehicles enter the preset dangerous area, enhancing the warning intensity of the current virtual safety warning based on a preset warning enhancement strategy, and sending warning information to the surrounding vehicles. Therefore, the problems of insufficient warning effect, lack of cooperation, single function and the like in the prior art are solved, the virtual safety warning mode is automatically adjusted through environmental perception, and the safety when the vehicle breaks down is improved.

Description

Technical Field

[0001] The present application relates to the technical field of vehicles, and particularly to a vehicle multi-functional virtual safety warning method, device, vehicle and medium. Background Art

[0002] When a vehicle breaks down suddenly or stops temporarily during driving, effective safety warning is crucial for preventing secondary accidents.

[0003] In related technologies, current vehicle fault warnings mainly rely on traditional physical tripods. Traditional physical tripods mainly include foldable metal or plastic brackets and reflective materials, and their reflective effects are significantly affected by environmental light, and the visibility is greatly reduced in rainy, foggy or night environments. In addition, although some electronic warning devices have improved the visibility problem to a certain extent by adding a simple lighting function on the basis of traditional physical tripods, they still need to be manually placed, which poses a safety hazard in dangerous environments such as highways, and the functions of traditional warning devices are relatively single, and the sound alarm function and other warning methods are not fully utilized to work together, which urgently needs to be solved. Summary of the Invention

[0004] The present application provides a vehicle multi-functional virtual safety warning method, device, vehicle and medium to solve the problems of insufficient warning effect, lack of coordination and single function in the background art, and automatically adjusts the virtual safety warning mode through environmental perception, improving the safety when the vehicle breaks down.

[0005] The first aspect embodiment of the present application provides a vehicle multi-functional virtual safety warning method, including the following steps:

[0006] When the current vehicle is in a preset fault state and / or the current vehicle is in a preset temporary parking state, obtain the environmental perception result of the current vehicle;

[0007] Determine a target warning mode that matches the environmental perception result from a preset warning mode database, and perform virtual safety warning based on the target warning mode;

[0008] When a surrounding vehicle enters a preset dangerous area, enhance the warning intensity of the current virtual safety warning based on a preset warning enhancement strategy, and send a warning message to the surrounding vehicle.

[0009] According to an embodiment of the present application, after performing virtual safety warning based on the target warning mode, it further includes:

[0010] Judge whether the current vehicle has a safety protection requirement;

[0011] If the current vehicle has the safety protection requirement, a target virtual protection fence is generated according to the vehicle type of the current vehicle and the environmental perception result, and the display state of the virtual warning device and the sound alarm parameters are dynamically adjusted.

[0012] According to an embodiment of the present application, enhancing the warning intensity of the current virtual safety warning based on a preset warning enhancement strategy includes:

[0013] Enhancing the warning brightness of the current virtual safety warning based on a preset brightness enhancement strategy, and / or increasing the warning frequency of the current virtual safety warning based on a preset flashing frequency increase strategy, and / or changing the warning color of the current virtual safety warning based on a preset color transformation strategy.

[0014] According to an embodiment of the present application, the preset dangerous area is determined by the speed of the surrounding vehicle and the environmental perception result, and the environmental perception result includes at least one of environmental light intensity, weather condition, and current road type.

[0015] According to an embodiment of the present application, the preset temporary parking state is that the handbrake of the current vehicle is in the pulled-up state and the vehicle speed of the current vehicle is less than the preset vehicle speed.

[0016] According to the vehicle multi-functional virtual safety warning method provided by the embodiment of the present application, when the current vehicle is in a preset fault state and / or the current vehicle is in a preset temporary parking state, a target warning mode matching the environmental perception result of the current vehicle is determined from a preset warning mode database, and virtual safety warning is performed based on the target warning mode; when a surrounding vehicle enters a preset dangerous area, the warning intensity of the current virtual safety warning is enhanced based on a preset warning enhancement strategy, and a warning message is sent to the surrounding vehicle. Thus, problems such as insufficient warning effect, lack of coordination, and single function in the background technology are solved, and the virtual safety warning mode is automatically adjusted through environmental perception, improving the safety when the vehicle breaks down.

[0017] An embodiment of the second aspect of the present application provides a vehicle multi-functional virtual safety warning device, including:

[0018] An acquisition module, configured to acquire the environmental perception result of the current vehicle when the current vehicle is in a preset fault state and / or the current vehicle is in a preset temporary parking state;

[0019] A first warning module, which determines a target warning mode matching the environmental perception result from a preset warning mode database, and performs virtual safety warning based on the target warning mode;

[0020] The second warning module, when a surrounding vehicle enters a preset dangerous area, enhances the warning intensity of the current virtual safety warning based on a preset warning enhancement strategy, and sends a warning message to the surrounding vehicle.

[0021] According to an embodiment of the present application, after performing virtual safety warning based on the target warning mode, the first warning module is further configured to:

[0022] Determine whether the current vehicle has a safety protection requirement;

[0023] If the current vehicle has the safety protection requirement, generate a target virtual protection fence according to the vehicle type of the current vehicle and the environmental perception result, and dynamically adjust the display state of the virtual warning device and the sound alarm parameters.

[0024] According to an embodiment of the present application, the second warning module is configured to:

[0025] Enhance the warning brightness of the current virtual safety warning based on a preset brightness enhancement strategy, and / or increase the warning frequency of the current virtual safety warning based on a preset flashing frequency increase strategy, and / or change the warning color of the current virtual safety warning based on a preset color transformation strategy.

[0026] According to an embodiment of the present application, the preset dangerous area is determined by the speed of the surrounding vehicle and the environmental perception result, and the environmental perception result includes at least one of environmental light intensity, weather condition, and current road type.

[0027] According to an embodiment of the present application, the preset temporary parking state is that the handbrake of the current vehicle is in the pulled-up state, and the vehicle speed of the current vehicle is less than a preset vehicle speed.

[0028] According to the vehicle multi-functional virtual safety warning device provided by the embodiment of the present application, when the current vehicle is in a preset fault state, and / or when the current vehicle is in a preset temporary parking state, determine a target warning mode that matches the environmental perception result of the current vehicle from a preset warning mode database, and perform virtual safety warning based on the target warning mode; when a surrounding vehicle enters a preset dangerous area, enhance the warning intensity of the current virtual safety warning based on a preset warning enhancement strategy, and send a warning message to the surrounding vehicle. Thus, the problems of insufficient warning effect, lack of coordination, and single function in the background technology are solved, and the virtual safety warning mode is automatically adjusted through environmental perception, improving the safety of the vehicle when a fault occurs.

[0029] A third aspect embodiment of the present application provides a vehicle, including: a memory, a processor, and a computer program stored on the memory and executable on the processor, where the processor executes the program to implement the vehicle multi-functional virtual safety warning method as described in the above embodiments.

[0030] A fourth aspect embodiment of the present application provides a computer-readable storage medium storing computer instructions for causing a computer to execute the vehicle multi-functional virtual safety warning method as described in the above embodiments.

[0031] Additional aspects and advantages of the present application will be given in part in the following description, become apparent in part from the following description, or be learned through the practice of the present application. Description of the Drawings

[0032] The above and / or additional aspects and advantages of the present application will become apparent and be readily understood from the following description of the embodiments in conjunction with the drawings, where:

[0033] Figure 1 is a structural diagram of a vehicle multi-functional virtual safety warning system according to an embodiment of the present application;

[0034] Figure 2 is a flowchart of a vehicle multi-functional virtual safety warning method according to an embodiment of the present application;

[0035] Figure 3 is a flowchart of a vehicle multi-functional virtual safety warning method according to an embodiment of the present application;

[0036] Figure 4 is a block schematic diagram of a vehicle multi-functional virtual safety warning device according to an embodiment of the present application;

[0037] Figure 5 is a structural schematic diagram of a vehicle provided by an embodiment of the present application. Detailed Embodiments

[0038] The embodiments of the present application will be described in detail below. Examples of the embodiments are shown in the drawings, where the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the drawings are exemplary and are intended to explain the present application and should not be construed as limiting the present application.

[0039] Those skilled in the art can understand that there are many deficiencies in the current vehicle fault warning methods, mainly reflected in the warning effect, interaction function, and function diversity.

[0040] First, the warning effect of traditional physical tripods is greatly affected by the environment. The reflective effect is poor in bad weather, and the visibility of electronic warning devices is also insufficient in complex environments. Strong light environments will also affect their visibility. In addition, relying solely on visual warnings is difficult to effectively attract the attention of drivers with inattentive or blocked vision. Second, existing warning devices lack effective interaction functions with surrounding vehicles and cannot dynamically adjust the warning mode according to the driving status of surrounding vehicles. Especially in scenarios of multiple vehicle failures or congestion, it is easy to cause chaos and increase the risk of secondary accidents. Finally, existing warning devices have relatively single functions, lack rescue guidance functions, cannot provide virtual protection boundaries for faulty vehicles, and the sound alarm function is not effectively combined with other warning methods, making it difficult to achieve better warning effects in complex traffic scenarios.

[0041] Based on this, the present application proposes a vehicle multi-functional virtual safety warning method, which automatically adjusts the virtual safety warning mode through environmental perception, can ensure good visibility under various weather and lighting conditions, greatly improves the discovery probability of the faulty vehicle by the following vehicle, and effectively reduces the occurrence of rear-end accidents.

[0042] Next, the vehicle multi-functional virtual safety warning method, device, vehicle and medium of the embodiments of the present application will be described with reference to the accompanying drawings.

[0043] Before introducing the vehicle multi-functional virtual safety warning method proposed by the present application, first introduce the vehicle multi-functional virtual safety warning system involved in the vehicle multi-functional virtual safety warning method proposed by the present application.

[0044] Specifically, the vehicle multi-functional virtual safety warning system includes sensor devices, control devices, display devices, communication devices and sound alarm devices. Among them, the sensor devices may include light sensors, humidity sensors, visibility sensors, radar or laser ranging sensors, gyroscopes and accelerometers. The control device may include an automotive electronic control unit (ECU) and a control subunit, the display device may be a light-emitting component, and the communication device may be a wireless communication module.

[0045] Exemplarily, the architecture of the vehicle multi-functional virtual safety warning system of the embodiments of the present application may be as Figure 1 shown, including a light sensor, a humidity sensor, a visibility sensor, a radar or laser ranging sensor, a gyroscope and an accelerometer, an automotive electronic control unit (ECU), a control subunit, a wireless communication module, a light-emitting component and a sound alarm device. Among them, the gyroscope is used to detect the vehicle attitude, and the accelerometer is used to assist in judging the vehicle motion state. The light sensor, humidity sensor, visibility sensor, radar or laser ranging sensor may be distributed at different positions of the vehicle to accurately obtain environmental and vehicle surrounding information.

[0046] Optionally, the light sensor can adopt a sensor of model TSL2561 and be installed on the top of the vehicle or a suitable position (such as near the sunroof) to obtain accurate ambient light information and avoid the influence of the vehicle's own shadow. The parameter settings of the light sensor in the embodiment of this application can be: the light intensity measurement range is 0 - 100,000 lux, and the accuracy is ±50 lux, which can accurately distinguish different lighting environments, such as direct strong light (about 100,000 lux), cloudy day (about 10,000 lux), night (about 0 - 100 lux), etc. The sensor internally includes a photodiode and an amplifier circuit. The photodiode converts the light signal into a current signal, and the amplifier circuit amplifies the current signal and converts it into a voltage signal for output to the control sub-unit. The principle of the light sensor is: based on the photoelectric effect, when light irradiates on the photosensitive element (photodiode) of the sensor, the photon energy is absorbed, electron-hole pairs are generated, and thus a current is formed. The stronger the light intensity, the more electron-hole pairs are generated, and the greater the current. The current signal is converted into a voltage signal through the internal circuit, and after amplification and analog-to-digital conversion, it is output to the control sub-unit.

[0047] Further, the humidity sensor and the visibility sensor can be set outside the vehicle and can be installed at the rear or side of the vehicle, close to the external environment, to ensure the authenticity of the measurement data. The humidity sensor in the embodiment of this application can use the HIH-4000 model, and the parameter settings can be: the measurement range is 0% - 100% RH, and the accuracy is ±2% RH, which can effectively detect the humidity changes in humid weather such as rain, snow, and fog. The hygroscopic medium inside the humidity sensor changes its capacitance value in different humidity environments. By cooperating with the measurement circuit inside the sensor, the humidity change is converted into a voltage signal for output. The working principle of the humidity sensor is: the capacitive humidity sensor utilizes the characteristic that the dielectric constant of the hygroscopic material (such as polymer film) changes with humidity. When the ambient humidity changes, the hygroscopic material absorbs or releases moisture, its dielectric constant changes, resulting in a change in the capacitance value of the sensor. The measurement circuit converts the change in capacitance value into a voltage signal for output, thereby reflecting the magnitude of the humidity.

[0048] Optionally, the visibility sensor in the embodiment of this application can adopt the Vaisala FS11P model, utilize the optical scattering principle, and the parameter settings can be: the effective measurement range is 10 - 10,000 meters, and the accuracy is ±10%, which is used to accurately judge the visibility in different weather conditions. The principle of the visibility sensor is: the optical scattering visibility sensor emits a beam of a specific wavelength (such as infrared light). When the beam propagates in the atmosphere, it interacts with the particles (such as dust, water vapor, etc.) in the air and scatters. The sensor detects the intensity of the scattered light. According to the scattering theory, the scattered light intensity is related to the particle concentration in the atmosphere, and then the atmospheric visibility is calculated through an algorithm.

[0049] Optionally, a radar or a laser ranging sensor can be arranged at the rear of the vehicle. Multiple sensors can form a certain angular coverage range to ensure omnidirectional detection of surrounding vehicles. Generally, they are installed under the trunk lid or inside the rear bumper. The parameter settings of the radar or laser ranging sensor can be: the measurement distance range is 0 - 500 meters, and the accuracy is ±0.5 meters; the speed measurement range is 0 - 200 km / h, and the accuracy is ±1 km / h, which can accurately obtain the distance and speed information of surrounding vehicles in real time.

[0050] It should be noted that the principle of radar ranging is as follows: The radar sensor emits high-frequency electromagnetic waves (radar waves). When the radar waves encounter target objects such as surrounding vehicles, part of the electromagnetic waves will be reflected back. The sensor calculates the distance between the target object and the sensor based on the time difference, distance, and the propagation speed of the electromagnetic waves between the transmitted wave and the reflected wave. At the same time, according to the Doppler effect, when the target object has relative motion with respect to the radar sensor, the frequency of the reflected wave will change, and the speed of the target object can be calculated by detecting the frequency change. The principle of laser ranging is as follows: The laser ranging sensor emits high-frequency laser pulses. The laser pulses are reflected back after encountering the target object. The sensor calculates the distance between the target object and the sensor by accurately measuring the time from the emission to the reception of the laser pulses.

[0051] Optionally, the gyroscope and accelerometer of the embodiments of the present application can be installed on the vehicle chassis or the vehicle body frame to detect the attitude change and motion state of the vehicle, and assist in judging the vehicle state and the placement angle of the virtual warning device.

[0052] Optionally, the control sub-unit of the embodiments of the present application can adopt a control unit with a high-performance microcontroller (such as an ARM Cortex-M series processor) as the core, which has sufficient computing power and storage capacity (such as 128 KB - 1 MB of Flash memory and 32 KB - 256 KB of RAM). The control sub-unit is installed in the electronic control box inside the vehicle and is connected to each sensor, display component, sound alarm device, and wireless communication module through lines. Its main functions include running control algorithms, processing sensor data, storing preset warning modes, communication protocols, etc.

[0053] Optionally, the wireless communication module of the embodiments of the present application may adopt an NXP SAF5100 wireless communication chip and use dedicated short-range communication (DSRC) technology compliant with the IEEE 802.11p standard, including an antenna, a radio frequency transceiver, and a baseband processor. The antenna transmits and receives radio frequency signals. The radio frequency transceiver is responsible for modulating and demodulating the signals, converting digital signals into radio frequency signals for transmission, or demodulating digital signals from the received radio frequency signals. The baseband processor processes the protocols of the data link layer and the network layer to implement functions such as data encapsulation, decapsulation, and routing. The antenna can be installed on the top or rear of the vehicle to obtain a good signal coverage range and ensure reliable communication with surrounding vehicles and rescue vehicles. The wireless communication module is connected to the control sub-unit through a high-speed data bus, receives instructions from the control sub-unit, and sends warning messages to surrounding vehicles and rescue vehicles and receives external information. Among them, the communication frequency band can be 5.9 GHz, the communication radius can be 500 meters, and the data transmission rate can be 27 Mbps, ensuring stable and fast vehicle-to-vehicle and vehicle-to-rescue vehicle communication.

[0054] Furthermore, the working principle of the wireless communication module of the embodiments of the present application is to encode and encapsulate the data to be transmitted in the baseband processor, and then convert the digital signal into a radio frequency signal through the radio frequency transceiver and radiate it into space at a specific frequency (5.9 GHz) through the antenna. After the antenna of the receiving party receives the radio frequency signal, the digital signal is demodulated by the radio frequency transceiver, and then decoded and decapsulated by the baseband processor to restore the original data. In this way, information interaction between vehicles (fault vehicles and surrounding vehicles, rescue vehicles) is realized.

[0055] Optionally, the lighting component of the embodiments of the present application may be a multi-layer lighting component composed of multiple high-brightness LED lights, optical lenses, and diffuser sheets, which are distributed at the rear and around the vehicle (for virtual tripod and virtual guardrail display). The single power of the LED lights can be between 1 and 5 watts, and the brightness and color are adjusted through precise circuit control. The optical lens is designed with a focal length and an angle according to different display requirements, and the diffuser sheet is used to evenly distribute the light and improve the display quality. The lighting component is installed in the housing at the rear of the vehicle, and a waterproof and dustproof sealing design is used to ensure normal operation in harsh environments.

[0056] Furthermore, an LED lamp is a semiconductor light-emitting device. When a forward current passes through it, electrons and holes recombine at the PN junction of the semiconductor material, releasing energy in the form of photons to emit light. By controlling the magnitude of the current passing through the LED lamp, its luminous brightness can be adjusted. LED lamps with different materials and structures can emit different colors of light. By mixing different colors of LED lamps or using color-changing LED lamps, various color display effects can be achieved.

[0057] Optionally, the sound alarm parameters of the sound alarm device in the embodiments of the present application can be as follows: the volume adjustment range is 30 - 120 decibels, different types of sounds (such as alarm sounds, voice prompts, etc.) can be selected, and the playback frequency adjustment range is 0.1 - 5 times per second. The sound alarm device includes a speaker and an audio amplifier. The speaker can be installed at appropriate positions outside the vehicle (such as on both sides of the vehicle trunk or near the rear bumper) to ensure that the sound can be effectively transmitted to the surrounding environment. The audio amplifier is connected to the control sub-unit and is controlled by the control sub-unit. It amplifies the audio signal output by the control sub-unit and then drives the speaker to emit sound to achieve the sound alarm function.

[0058] The vehicle multi-functional virtual safety warning method proposed in the present application will be introduced below, which is applied to the above-mentioned vehicle multi-functional virtual safety warning system.

[0059] Specifically, Figure 2 It is a schematic flowchart of a vehicle multi-functional virtual safety warning method provided by the embodiments of the present application.

[0060] As Figure 2 shown, the vehicle multi-functional virtual safety warning method includes the following steps:

[0061] In step S201, when the current vehicle is in a preset fault state and / or the current vehicle is in a preset temporary parking state, obtain the environmental perception result of the current vehicle.

[0062] Among them, in some embodiments, the preset temporary parking state is that the handbrake of the current vehicle is in the pulled-up state and the vehicle speed of the current vehicle is less than the preset vehicle speed.

[0063] Specifically, the embodiments of the present application can obtain the current vehicle operation state information in real time through the vehicle electronic control unit (ECU), including the engine state, vehicle speed, handbrake state, fault code, etc. When a vehicle fault (such as engine failure shutdown, critical system failure) or temporary parking (such as handbrake pulled up and vehicle speed zero) is detected, the virtual safety warning method is started, and at the same time, the sound alarm module is initialized.

[0064] Furthermore, use a light sensor to detect the ambient light intensity, determine whether it is day or night and the light intensity level, use a humidity sensor and a visibility sensor to judge the weather conditions, and combine the vehicle positioning system information to determine the current road type (such as an ordinary road or a highway).

[0065] Specifically, the control sub-unit establishes a stable connection with the automotive electronic control unit (ECU) through the CAN bus. Continuously monitor the data from the ECU, including engine speed, water temperature, oil pressure, vehicle speed, handbrake status, and various fault diagnostic codes, etc. When receiving a specific fault signal (such as an engine stop signal, a key sensor fault code, or a combined signal of zero vehicle speed and the handbrake pulled up), it is determined that the vehicle is in a fault or temporary parking state. At this time, the control sub-unit sends start commands to each sub-device in the system, including sensor devices (light sensor, humidity sensor, visibility sensor, radar or laser range finder, gyroscope, accelerometer), display devices (light-emitting components), sound alarm devices, and wireless communication modules. At the same time, start the power management program to ensure that each device obtains stable power supply. The power supply can be provided by the car battery, and after passing through a voltage conversion and voltage stabilization circuit, it provides a suitable working voltage for modules with different voltage requirements. For example, it provides 3.3V voltage for the control sub-unit and a suitable driving voltage (such as 12V) for the LED lights in the light-emitting components.

[0066] Furthermore, the light sensor starts to work, and the photodiode inside it converts the received light intensity into an electrical signal. The sensor samples the ambient light at a fixed time interval (such as every 100 milliseconds). The sampled electrical signal is transmitted to the control sub-unit in digital signal form after passing through the internal amplification circuit and analog-to-digital conversion circuit of the sensor. The control sub-unit makes a judgment according to the preset light intensity threshold range. For example, it divides 0 - 1000 lux into low light (night or dark on cloudy days), 1000 - 80000 lux as normal daytime light, and above 80000 lux as direct strong light (such as at noon on sunny days).

[0067] Furthermore, the weather conditions are judged. The humidity sensor (such as a humidity sensor based on the principle of capacitance change) and the visibility sensor work simultaneously. The humidity sensor measures the ambient humidity every 200 milliseconds. It reflects the humidity change by detecting the capacitance change of the hygroscopic medium and transmits the corresponding voltage signal to the control sub-unit. The visibility sensor (such as a sensor using the principle of optical scattering) measures the atmospheric visibility every 300 milliseconds. By emitting and receiving light signals of a specific wavelength and calculating the visibility based on the intensity of the scattered light, it transmits the data to the control sub-unit. When the humidity exceeds 80% and the visibility is less than 1000 meters, it is determined as bad weather (such as rain, fog, snow, etc.).

[0068] Further, determine the current road type. Obtain the location information of the current vehicle through the built-in GPS module of the vehicle, and combine it with the map database (stored in the storage chip of the control sub-unit or obtained from the cloud through wireless communication) to determine whether the road where the vehicle is located is an ordinary road or a highway.

[0069] In step S202, determine the target warning mode that matches the environmental perception result from the preset warning mode database, and perform virtual safety warnings based on the target warning mode.

[0070] Specifically, according to the light intensity, weather conditions, and road type, select a suitable mode from the preset warning mode database, including the display distance, brightness, color, blinking frequency, 3D effect of the virtual tripod, and whether to enable the virtual guardrail, rescue guidance function, and sound alarm mode (such as sound type, volume, playback frequency).

[0071] In detail, according to the obtained environmental perception result, the control sub-unit selects a suitable virtual safety warning mode from the warning mode database stored in its Flash memory. This database stores the virtual tripod display parameters (distance, brightness, color, blinking frequency, 3D effect), virtual guardrail parameters (whether to enable, height, distance range from the vehicle edge, brightness, color), and sound alarm parameters (volume, sound type, playback frequency) under various combinations of environments and road types. For example, when there is a fault on an ordinary road on a sunny day, select a virtual tripod display distance of 50 meters behind the vehicle, a brightness of 500 candela per square meter, a color of yellow, a blinking frequency of 1 time per second, a 3D effect of medium stereo mode, do not enable the virtual guardrail, a sound alarm volume of 60 decibels, a sound type of intermittent alarm sound, and a playback frequency of 0.5 times per second.

[0072] In step S203, when a surrounding vehicle enters the preset dangerous area, based on the preset warning enhancement strategy, enhance the warning intensity of the current virtual safety warning, and send a warning message to the surrounding vehicle.

[0073] Among them, in some embodiments, the preset dangerous area is determined by the speed of the surrounding vehicle and the environmental perception result, and the environmental perception result includes at least one of environmental light intensity, weather conditions, and the current road type.

[0074] Further, in some embodiments, enhancing the warning intensity of the current virtual safety warning based on the preset warning enhancement strategy includes: enhancing the warning brightness of the current virtual safety warning based on the preset brightness enhancement strategy, and / or, increasing the warning frequency of the current virtual safety warning based on the preset blinking frequency increase strategy, and / or, changing the warning color of the current virtual safety warning based on the preset color transformation strategy.

[0075] Specifically, the distance, speed, and driving direction of surrounding vehicles are monitored in real time through a radar or a laser ranging sensor. When a surrounding vehicle enters a preset dangerous area, the warning intensity of the enhanced virtual tripod is increased (such as increasing the brightness, accelerating the blinking frequency, or changing the color). At the same time, a warning message containing the position, status, and danger level of the faulty vehicle is sent to the surrounding vehicles through a wireless communication module.

[0076] Among them, the brightness adjustment range of the virtual tripod is 10 - 10000 candela per square meter, the color can be selected or mixed from various colors such as red, orange, yellow, green, blue, purple, etc., and the blinking frequency adjustment range is 0.5 - 5 times per second. The 3D effect is achieved by adjusting the brightness and angle of different layers of LED lights, and different stereo depth and visual effect levels can be set. The single power of the LED lights is between 1 - 5 watts, and the adjustment of brightness and color is achieved through precise circuit control. The optical lens designs the focal length and angle according to different display requirements, and the diffuser is used to evenly distribute the light and improve the display quality.

[0077] In detail, the radar or laser ranging sensor emits detection signals (radar waves or laser pulses) to the rear and surrounding areas of the vehicle at a frequency of 10 times per second. When the detection signal encounters a surrounding vehicle, it will be reflected back. The sensor calculates the distance between the surrounding vehicle and the faulty vehicle based on the time difference between the transmitted and received signals. At the same time, the speed and driving direction information of the surrounding vehicle are calculated based on the Doppler effect (for radar waves) or other relevant principles (for laser ranging). These data are transmitted to the control sub-unit in real time.

[0078] Furthermore, when the control sub-unit determines that the distance between the surrounding vehicle and the faulty vehicle is less than the preset safety distance (on ordinary roads, the safety distance is between 30 - 100 meters depending on the vehicle speed; on highways, the safety distance is between 100 - 200 meters depending on the vehicle speed) and the relative speed difference is greater than 20 km / h, the control sub-unit increases the brightness (by 20% each time) and blinking frequency (by 0.5 times per second each time) of the virtual tripod through a PWM (pulse width modulation) control circuit. At the same time, a warning message containing the position, status (such as the type of fault, whether it is dangerous, etc.), and danger level of the faulty vehicle is sent to the surrounding vehicles through a wireless communication module. The warning message is encapsulated and transmitted according to the communication protocol of the IEEE802.11p standard.

[0079] In addition, in the embodiments of the present application, when multiple vehicles break down or stop simultaneously, the virtual warning modes of each vehicle can be coordinated through vehicle-to-vehicle communication to avoid information chaos. At the same time, the volume and playback frequency of the sound alarm are adjusted according to the proximity and danger level of the surrounding vehicles.

[0080] Specifically, in the scenario where multiple vehicles break down simultaneously, the wireless communication modules of each vehicle receive information of surrounding faulty vehicles, and the control sub-units negotiate their respective virtual warning modes through a preset algorithm (considering factors such as the distance from the core accident area and the severity of vehicle faults). For example, the vehicle closest to the core accident area displays the virtual tripod as red flashing and a high-volume continuous alarm sound, and the vehicles slightly farther away display it as yellow flashing and a medium-volume intermittent alarm sound, so as to guide surrounding vehicles to avoid in an orderly manner.

[0081] Thus, through the interaction function with surrounding vehicles, the faulty vehicle can convey danger information to surrounding vehicles in a timely manner, and surrounding vehicles can also make corresponding responses. At the same time, the coordinated warning in case of multiple vehicle faults avoids information chaos, reduces the risk of secondary accidents, and improves road traffic safety.

[0082] Further, in some embodiments, after performing virtual safety warning based on the target warning mode, it further includes: determining whether the current vehicle has a safety protection requirement; if the current vehicle has a safety protection requirement, generating a target virtual guardrail according to the vehicle type and environmental perception result of the current vehicle, and dynamically adjusting the display state of the virtual warning device and the sound alarm parameters.

[0083] Among them, the height of the target virtual guardrail in the embodiments of the present application can be set to 30 - 100 cm, the distance from the vehicle edge is 1 - 5 m, the brightness adjustment range is the same as that of the virtual tripod, and the color can be selected according to the warning level (for example, red indicates high danger), which is not specifically limited here.

[0084] Specifically, if the driver manually triggers or the system determines that the safety protection function needs to be activated according to the severity of the fault, a target virtual guardrail is generated around the vehicle, and the specific parameters (height, distance range from the vehicle edge, shape, brightness, color) can be set according to the environmental perception result and the vehicle type.

[0085] Further, when the virtual guardrail function is activated, the control sub-unit sequentially controls the LED light groups at different positions around the vehicle in the light-emitting component to light up according to the preset guardrail parameters. For example, for a rectangular virtual guardrail surrounding the vehicle, starting from a corner of the vehicle, the LED lights are lit row by row or column by column in sequence, forming an effect of light flow to simulate the actual appearance of the guardrail. The light flow speed can be adjusted as needed, such as a moving speed of 10 cm per second, moving cyclically from one end of the guardrail to the other end. Through this dynamic light flow, the visual effect is enhanced, enabling the drivers of surrounding vehicles to more clearly perceive the protected area. At the same time, during the display process of the virtual guardrail, if the vehicle posture changes (detected by the gyroscope and accelerometer), the control sub-unit will adjust the lighting sequence and direction of the LED lights in real time to ensure that the virtual guardrail always maintains the correct position and shape.

[0086] Thus, the virtual guardrail function of the embodiments of the present application provides additional safety protection for the faulty vehicle. Coupled with the voice alarm assistance, it can effectively remind passing vehicles and prevent other vehicles from accidentally colliding with it.

[0087] Furthermore, after the current vehicle sends a rescue request, the display of the virtual warning device can be dynamically adjusted according to the position of the rescue vehicle. An arrow or dynamic light guiding in the direction of the rescue vehicle can be added to the virtual tripod display image, and at the same time, a voice alarm with a specific frequency is activated to assist the rescue vehicle in quickly locating the faulty vehicle.

[0088] Among them, the voice alarm parameters can be set with a volume adjustment range of 30 - 120 decibels, different types of sounds can be selected (such as alarm sounds, voice prompts, etc.), and the playback frequency is 0.1 - 5 times per second, which can be adjusted according to the degree of danger and the situation of surrounding vehicles. The brightness, size, and direction of the rescue guiding arrow or dynamic light are adjusted in real time according to the distance and relative position between the rescue vehicle and the faulty vehicle.

[0089] Specifically, when the driver manually presses the safety protection button in the vehicle or the control sub - unit determines that the safety protection function needs to be activated according to the severity of the fault (such as faults involving key safety systems, such as complete failure of the braking system, steering system failure, etc.), the control sub - unit starts the virtual guardrail generation program. According to the preset guardrail parameters, by controlling the LED lights at specific positions in the light - emitting component, and combining with the optical lens and diffuser, the light forms a guardrail with a specific shape (such as a rectangle or polygon surrounding the vehicle) and height (such as 30 - 100 cm). The range of the guardrail from the vehicle edge can be set to 1 - 5 meters, and its brightness is adjusted synchronously with the brightness of the virtual tripod according to the environmental conditions. The color can be selected according to the warning level (such as red indicating high danger).

[0090] After the vehicle sends a rescue request through the vehicle - mounted communication system (such as a system connected to the rescue dispatching center), the control sub - unit starts to receive the position information of the rescue vehicle (through communication with the rescue dispatching system or the rescue vehicle). According to the azimuth and distance of the rescue vehicle, the direction and angle of the arrow or dynamic light guiding in the virtual tripod display image are calculated using trigonometric functions. As the rescue vehicle approaches, the brightness (such as gradually increasing from 500 candela per square meter to 2000 candela per square meter) and size (according to the preset proportional relationship) of the arrow or light are gradually increased, and at the same time, the playback frequency of the voice alarm is adjusted (such as increasing from 0.5 times per second to 2 times per second) to ensure that the rescue vehicle can be clearly guided to the position of the faulty vehicle at different distances.

[0091] Exemplarily, when the rescue vehicle approaches the faulty vehicle, the rescue guide arrow or dynamic light guide in the virtual warning device of the faulty vehicle will adjust the direction and movement according to the change of the position of the rescue vehicle. For example, a coordinate system is established with the faulty vehicle as the center. When the rescue vehicle is to the left of the rear of the faulty vehicle, the control subunit calculates that the rescue guide arrow should be deflected to the left by a certain angle (calculated according to trigonometric functions), and controls the light-emitting component to display the arrow of the corresponding direction in the virtual tripod display image. As the rescue vehicle gradually approaches, the size of the arrow gradually increases (according to the preset proportional relationship between distance and size), and the brightness will also be appropriately adjusted according to the ambient light intensity and distance (such as the brightness is lower when the distance is far, and the brightness gradually increases as the distance is shortened). At the same time, the direction of the arrow will be updated in real time as the driving direction of the rescue vehicle changes, ensuring that it always points accurately to the rescue vehicle. In this process, the playback frequency of the sound alarm will also be adjusted accordingly. For example, the closer the rescue vehicle is, the higher the playback frequency will be, forming a dynamic guidance process to assist the rescue vehicle in finding the faulty vehicle quickly and accurately.

[0092] Therefore, the rescue guidance function helps rescue vehicles to quickly locate faulty vehicles, save rescue time, and further improve the safety and efficiency of the entire road rescue and fault handling process.

[0093] In order to facilitate those skilled in the art to more clearly and intuitively understand the vehicle multifunctional virtual safety warning method proposed in this application, the following is combined with Figure 3 Provide detailed explanation.

[0094] Specifically, if Figure 3 As shown, the vehicle multifunctional virtual safety warning method includes the following steps:

[0095] First, the system detects that the vehicle has failed, enters the initialization phase, and performs environmental perception to collect information about the surrounding environment, such as light, humidity, and visibility.

[0096] Secondly, according to the results of environmental perception, the virtual tripod display mode suitable for the current environmental conditions is selected, and the surrounding vehicles are monitored to determine whether they have entered the preset danger zone. If the surrounding vehicles have not entered the danger zone, rescue judgment is made; if the surrounding vehicles have entered the danger zone, the warning signal is enhanced and a virtual guardrail is generated.

[0097] Further, a rescue judgment is performed to determine whether a rescue procedure needs to be initiated. If rescue is required, the virtual warning and sound display mode are updated to guide rescue vehicles and personnel.

[0098] Finally, the fault clearance judgment is performed to check whether the fault has been cleared or whether the user has manually turned off the warning system. If the fault has not been cleared, the environment perception is performed again; if the fault has been cleared, the process ends.

[0099] According to the vehicle multi-functional virtual safety warning method proposed by the embodiments of the present application, when the current vehicle is in a preset fault state and / or the current vehicle is in a preset temporary parking state, a target warning mode matching the environmental perception result of the current vehicle is determined from a preset warning mode database, and virtual safety warning is performed based on the target warning mode; when a surrounding vehicle enters a preset dangerous area, based on a preset warning enhancement strategy, the warning intensity of the current virtual safety warning is enhanced, and a warning message is sent to the surrounding vehicle. Thus, the problems of insufficient warning effect, lack of coordination, and single function in the background technology are solved, and the virtual safety warning mode is automatically adjusted through environmental perception, improving the safety of the vehicle during a fault.

[0100] Next, a vehicle multi-functional virtual safety warning device proposed by the embodiments of the present application is described with reference to the accompanying drawings.

[0101] Figure 4 It is a block diagram of the vehicle multi-functional virtual safety warning device according to the embodiments of the present application.

[0102] As Figure 4 shown, the vehicle multi-functional virtual safety warning device 10 includes: an acquisition module 100, a first warning module 200, and a second warning module 300.

[0103] Among them, the acquisition module 100 is used to obtain the environmental perception result of the current vehicle when the current vehicle is in a preset fault state and / or the current vehicle is in a preset temporary parking state; the first warning module 200 determines a target warning mode matching the environmental perception result from a preset warning mode database, and performs virtual safety warning based on the target warning mode; the second warning module 300, when a surrounding vehicle enters a preset dangerous area, based on a preset warning enhancement strategy, enhances the warning intensity of the current virtual safety warning, and sends a warning message to the surrounding vehicle.

[0104] Further, in some embodiments, after performing virtual safety warning based on the target warning mode, the first warning module 200 is further used to: determine whether the current vehicle has a safety protection requirement; if the current vehicle has a safety protection requirement, generate a target virtual protection fence according to the vehicle type and environmental perception result of the current vehicle, and dynamically adjust the display state and sound alarm parameters of the virtual warning device.

[0105] Further, in some embodiments, the second warning module 300 is used to: enhance the warning brightness of the current virtual safety warning based on a preset brightness enhancement strategy, and / or increase the warning frequency of the current virtual safety warning based on a preset flicker frequency increase strategy, and / or change the warning color of the current virtual safety warning based on a preset color transformation strategy.

[0106] Further, in some embodiments, the preset dangerous area is determined by the speeds of surrounding vehicles and the results of environmental perception, and the results of environmental perception include at least one of environmental light intensity, weather conditions, and the current road type.

[0107] Further, in some embodiments, the preset temporary parking state is that the parking brake of the current vehicle is in the pulled-up state, and the vehicle speed of the current vehicle is less than the preset vehicle speed.

[0108] It should be noted that the foregoing explanation of the embodiments of the vehicle multi-functional virtual safety warning method also applies to the vehicle multi-functional virtual safety warning device of this embodiment, and will not be elaborated here.

[0109] According to the vehicle multi-functional virtual safety warning device provided by the embodiments of the present application, when the current vehicle is in a preset fault state and / or the current vehicle is in a preset temporary parking state, a target warning mode matching the environmental perception result of the current vehicle is determined from a preset warning mode database, and virtual safety warning is performed based on the target warning mode; when a surrounding vehicle enters a preset dangerous area, based on a preset warning enhancement strategy, the warning intensity of the current virtual safety warning is enhanced, and a warning message is sent to the surrounding vehicle. Thus, the problems of insufficient warning effect, lack of coordination, and single function in the background art are solved, and the virtual safety warning mode is automatically adjusted through environmental perception, improving the safety of the vehicle when a fault occurs.

[0110] Figure 5 The structural schematic diagram of the vehicle provided by the embodiments of the present application. The vehicle may include:

[0111] A memory 501, a processor 502, and a computer program stored on the memory 501 and executable on the processor 502.

[0112] When the processor 502 executes the program, it implements the vehicle multi-functional virtual safety warning method provided in the above embodiments.

[0113] Further, the vehicle further includes:

[0114] A communication interface 503 for communication between the memory 501 and the processor 502.

[0115] The memory 501 is used to store a computer program executable on the processor 502.

[0116] The memory 501 may include a high-speed RAM memory, and may also include a non-volatile memory, such as at least one disk memory.

[0117] If the memory 501, the processor 502, and the communication interface 503 are implemented independently, the communication interface 503, the memory 501, and the processor 502 can be interconnected through a bus and communicate with each other. The bus can be an Industry Standard Architecture (ISA) bus, a Peripheral Component Interconnect (PCI) bus, an Extended Industry Standard Architecture (EISA) bus, or the like. The bus can be divided into an address bus, a data bus, a control bus, etc. For ease of representation, Figure 5 it is represented by only a thick line in Figure 5 , but this does not mean that there is only one bus or one type of bus.

[0118] Optionally, in a specific implementation, if the memory 501, the processor 502, and the communication interface 503 are integrated on a single chip, the memory 501, the processor 502, and the communication interface 503 can communicate with each other through an internal interface.

[0119] The processor 502 may be a Central Processing Unit (CPU), or an Application Specific Integrated Circuit (ASIC), or one or more integrated circuits configured to implement the embodiments of the present application.

[0120] The embodiments of the present application further provide a computer-readable storage medium, on which a computer program is stored, and when the program is executed by a processor, the vehicle multi-functional virtual safety warning method as described above is implemented.

[0121] In the description of this specification, the description with reference to terms such as "one embodiment", "some embodiments", "example", "specific example", or "some examples" means that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described can be combined in any one or N embodiments or examples in a suitable manner. In addition, without contradiction, those skilled in the art can combine and combine the different embodiments or examples described in this specification and the features of different embodiments or examples.

[0122] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include at least one such feature. In the description of the present application, the meaning of "N" is at least two, such as two, three, etc., unless otherwise specifically defined.

[0123] Any process or method description represented in a flowchart or otherwise described herein may be understood to represent a module, segment, or portion of code including one or more N executable instructions for implementing a customized logic function or process, and the scope of the preferred embodiments of the present application includes additional implementations, where the functions may be performed in a substantially simultaneous manner or in a reverse order according to the functions involved, rather than in the order shown or discussed, which should be understood by those skilled in the art to which the embodiments of the present application pertain.

[0124] The logic and / or steps represented in a flowchart or otherwise described herein, for example, may be considered as a sequenced list of executable instructions for implementing a logical function, and may be specifically implemented in any computer-readable medium for use by or in connection with an instruction execution system, apparatus, or device, such as a computer-based system, a system including a processor, or other systems that can fetch and execute instructions from the instruction execution system, apparatus, or device. For the purposes of this specification, a "computer-readable medium" may be any device that can contain, store, communicate, propagate, or transport a program for use by or in connection with an instruction execution system, apparatus, or device. More specific examples (non-exhaustive list) of the computer-readable medium include the following: an electrical connection portion having one or N wirings (electronic device), a portable computer diskette (magnetic device), a random access memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM or flash memory), an optical fiber device, and a portable compact disc read-only memory (CDROM). Additionally, the computer-readable medium may even be paper or other suitable medium on which the program can be printed, as the program can be obtained electronically, for example, by optically scanning the paper or other medium, followed by editing, interpretation, or otherwise processing as appropriate, and then storing it in a computer memory.

[0125] It should be understood that each part of the present application can be implemented by hardware, software, firmware, or a combination thereof. In the above embodiments, the N steps or methods can be implemented by software or firmware stored in a memory and executed by a suitable instruction execution system. For example, if implemented by hardware, as in another embodiment, any one or a combination of the following techniques well known in the art can be used: discrete logic circuits with logic gate circuits for implementing logical functions on data signals, application specific integrated circuits with appropriate combinational logic gate circuits, programmable gate arrays (PGAs), field programmable gate arrays (FPGAs), and the like.

[0126] Those of ordinary skill in the art can understand that all or part of the steps carried by the method of the above embodiments can be completed by instructing relevant hardware through a program. The said program can be stored in a computer-readable storage medium. When the program is executed, it includes one or a combination of the steps of the method embodiments.

[0127] In addition, in each embodiment of the present application, each functional unit can be integrated into a processing module, or each unit can exist physically alone, or two or more units can be integrated into one module. The above integrated module can be implemented in the form of hardware or in the form of a software functional module. When the above integrated module is implemented in the form of a software functional module and sold or used as an independent product, it can also be stored in a computer-readable storage medium.

[0128] The above-mentioned storage medium can be a read-only memory, a magnetic disk, an optical disc, or the like. Although the embodiments of the present application have been shown and described above, it can be understood that the above embodiments are exemplary and should not be construed as limiting the present application. Those of ordinary skill in the art can make changes, modifications, substitutions, and variations to the above embodiments within the scope of the present application.

Claims

1. A vehicle multi-functional virtual safety warning method, characterized in that, Including the following steps: When the current vehicle is in a preset fault state and / or the current vehicle is in a preset temporary parking state, obtain the environmental perception result of the current vehicle; Determine a target warning mode that matches the environmental perception result from a preset warning mode database, and perform virtual safety warnings based on the target warning mode; When a surrounding vehicle enters a preset dangerous area, based on a preset warning enhancement strategy, enhance the warning intensity of the current virtual safety warning, and send a warning message to the surrounding vehicle.

2. The method according to claim 1, wherein After performing virtual safety warnings based on the target warning mode, it further includes: Judge whether the current vehicle has a safety protection requirement; If the current vehicle has the safety protection requirement, generate a target virtual guardrail according to the vehicle type of the current vehicle and the environmental perception result, and dynamically adjust the display state of the virtual warning device and the sound alarm parameters.

3. The method according to claim 1, wherein The enhancing the warning intensity of the current virtual safety warning based on a preset warning enhancement strategy includes: Enhancing the warning brightness of the current virtual safety warning based on a preset brightness enhancement strategy, and / or increasing the warning frequency of the current virtual safety warning based on a preset flashing frequency increase strategy, and / or changing the warning color of the current virtual safety warning based on a preset color transformation strategy.

4. The method according to claim 1, wherein The preset dangerous area is determined by the speed of the surrounding vehicle and the environmental perception result, and the environmental perception result includes at least one of environmental light intensity, weather condition, and current road type.

5. The method according to claim 1, characterized in that The preset temporary parking state is that the handbrake of the current vehicle is pulled up and the vehicle speed of the current vehicle is less than the preset vehicle speed.

6. A vehicle multi-functional virtual safety warning device, characterized in that, Including: An acquisition module, configured to obtain the environmental perception result of the current vehicle when the current vehicle is in a preset fault state and / or the current vehicle is in a preset temporary parking state; A first warning module, which determines a target warning mode that matches the environmental perception result from a preset warning mode database, and performs virtual safety warnings based on the target warning mode; A second warning module, when a surrounding vehicle enters a preset dangerous area, based on a preset warning enhancement strategy, enhances the warning intensity of the current virtual safety warning, and sends a warning message to the surrounding vehicle.

7. The device according to claim 6, characterized in that, After performing virtual safety warnings based on the target warning mode, the first warning module is further configured to: Judge whether the current vehicle has a safety protection requirement; If the current vehicle has the safety protection requirement, generate a target virtual guardrail according to the vehicle type of the current vehicle and the environmental perception result, and dynamically adjust the display state of the virtual warning device and the sound alarm parameters.

8. The device according to claim 6, characterized in that, The second warning module is configured to: Enhance the warning brightness of the current virtual safety warning based on a preset brightness enhancement strategy, and / or increase the warning frequency of the current virtual safety warning based on a preset flashing frequency increase strategy, and / or change the warning color of the current virtual safety warning based on a preset color transformation strategy.

9. A vehicle, characterized in that, Including: A memory, a processor, and a computer program stored on the memory and executable on the processor, the processor executing the computer program to implement the vehicle multi-functional virtual safety warning method according to any one of claims 1-5.

10. A computer-readable storage medium having a computer program stored thereon, characterized in that, The computer program is executed by the processor to implement the vehicle multi-functional virtual safety warning method according to any one of claims 1-5.

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