Vehicle control method and device, computer readable storage medium and vehicle

Abstract

The invention relates to a vehicle control method and device, a computer readable storage medium and a vehicle, and relates to the technical field of vehicle control. The method comprises the following steps: acquiring physiological feature data of a driver of a vehicle, and determining the fatigue degree of the driver based on the physiological feature data; determining a corresponding target spectrum parameter according to the fatigue degree; the target spectrum parameter is used for defining a target illumination effect of the cabin illumination device for biologically adjusting the driver; and controlling the cabin lighting device to emit light based on the target spectrum parameter. According to the embodiment of the invention, the fatigue degree of the driver can be reduced without interfering the driving process, and the driving safety is improved.

Description

Technical Field

[0001] This disclosure relates to the field of vehicle control technology, and in particular to a vehicle control method and apparatus, a computer-readable storage medium, and a vehicle. Background Technology

[0002] In related technologies, to ensure driving safety, some vehicles offer fatigue driving monitoring and intervention functions. When driver fatigue is detected, a fatigue reminder is given to the driver, advising them to rest as soon as possible.

[0003] Current fatigue warning methods include displaying fatigue warning information on the vehicle's dashboard or central control screen, and playing reminder audio through the vehicle's internal speakers. These methods only convey the message that "you need to stop and rest," and cannot actually solve the fatigue problem. In situations where the driver cannot immediately stop to rest, such as while driving in a tunnel or when the next highway service area is far away, the driver still needs to endure fatigue and continue driving until conditions allow for a rest. In such cases, fatigue warnings not only fail to solve the problem but also interfere with normal driving and affect driving safety. Summary of the Invention

[0004] To address the aforementioned technical problems, this disclosure provides a vehicle control method and apparatus, a computer-readable storage medium, and a vehicle, which can reduce driver fatigue and improve driving safety without interfering with the driving process.

[0005] In a first aspect, this disclosure provides a method for controlling a vehicle, the method comprising: Acquire physiological characteristic data of the vehicle driver and determine the driver's fatigue level based on the physiological characteristic data; The target spectral parameters are determined based on the degree of fatigue; the target spectral parameters are used to define the target lighting effect of the cockpit lighting device that provides bio-regulation for the driver. The cockpit lighting device is controlled to emit light based on the target spectral parameters.

[0006] Optionally, in some embodiments of this disclosure, the target spectral parameters include the target emission wavelength, the target emission intensity, and the target emission duration; Controlling the cockpit lighting to emit light includes: The cockpit lighting device is controlled to emit light at the target emission wavelength and intensity during the target emission duration.

[0007] Optionally, in some embodiments of this disclosure, the cockpit lighting device is controlled to emit light at the target emission wavelength and target emission intensity during the target emission duration, including: The cockpit lighting device is controlled to start with an initial emission wavelength and initial emission intensity, gradually increase the emission intensity and adjust the emission wavelength until the emission wavelength of the cockpit lighting device reaches the target emission wavelength and the emission intensity of the cockpit lighting device reaches the target emission intensity. After that, the cockpit lighting device is controlled to emit light at the target emission wavelength and target emission intensity for the target emission duration.

[0008] In some embodiments of this disclosure, optionally, the target spectral parameters are determined based on the degree of fatigue, including: Based on the fatigue level and the preset mapping relationship between fatigue level and spectral parameters, the target spectral parameters corresponding to the target fatigue level are determined. The fatigue level corresponds to the target fatigue level, which is one of mild fatigue, moderate fatigue, and severe fatigue. The bio-regulatory effect of the spectral parameters corresponding to mild fatigue, moderate fatigue, and severe fatigue increases in that order.

[0009] Optionally, in some embodiments of this disclosure, the method further includes: When the target's fatigue level is severe, perform target intervention operations; The target intervention operation includes at least one of the following: playing target audio, controlling the vehicle's steering wheel to vibrate at the target vibration frequency, and controlling the vehicle's in-vehicle display screen to display target information.

[0010] Optionally, in some embodiments of this disclosure, after controlling the cockpit lighting device to emit light at the target emission wavelength and target emission intensity during the target emission duration, the method further includes: Update driver fatigue levels; If the updated fatigue level is less than the fatigue level threshold, control the cockpit lighting device to emit light at the initial emission wavelength and initial emission intensity, and generate intervention log information; If the updated fatigue level is greater than or equal to the fatigue level threshold, the fatigue level is increased, and the cabin lighting device in the vehicle is controlled to emit light based on the target spectral parameters corresponding to the increased fatigue level.

[0011] Optionally, in some embodiments of this disclosure, the method further includes: The driver's identity information is determined based on physiological characteristic data and the preset mapping relationship between physiological characteristic data and identity information; The target spectral parameters are determined based on the degree of fatigue, including: The initial spectral parameters are determined based on the driver's identity information and the user feature database; the user feature database stores at least one initial spectral parameter corresponding to an identity information. The target spectral parameters are determined based on the degree of fatigue and the initial spectral parameters.

[0012] Secondly, embodiments of this disclosure provide a vehicle control device, the control device comprising: The acquisition module is used to acquire the physiological characteristic data of the vehicle's driver and determine the driver's fatigue level based on the physiological characteristic data. The determination module is used to determine the corresponding target spectral parameters based on the degree of fatigue; the target spectral parameters are used to define the target lighting effect of the cockpit lighting device for bio-regulation of the driver; The control module is used to control the cockpit lighting device to emit light based on the target spectral parameters.

[0013] Thirdly, this disclosure provides a computer-readable storage medium having a computer program stored thereon, which, when executed by a processor, implements the vehicle control method as provided in the first aspect.

[0014] Fourthly, this disclosure provides a vehicle, including: Memory; Processor; and Computer programs; The computer program is stored in memory and configured to be executed by a processor to implement the vehicle control method provided in the first aspect.

[0015] The technical solution provided in this disclosure has the following advantages compared with the prior art: The vehicle control method, apparatus, computer-readable storage medium, and vehicle provided in this disclosure, when determining that a driver is fatigued based on physiological characteristic data, control the vehicle's existing cabin lighting to emit light according to target spectral parameters corresponding to the driver's fatigue level. This specific light emission method stimulates melanopsin, thereby inhibiting melatonin secretion and increasing cortisol levels, thus enhancing the driver's neural excitability and physiologically alleviating driver fatigue. Therefore, it can reduce driver fatigue and improve driving safety without interfering with the driving process. Attached Figure Description

[0016] The accompanying drawings, which are incorporated in and form a part of this specification, illustrate embodiments consistent with this disclosure and, together with the description, serve to explain the principles of this disclosure.

[0017] To more clearly illustrate the technical solutions in the embodiments of this disclosure or the prior art, the accompanying drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, for those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 A schematic diagram of the system architecture of a vehicle according to some embodiments of this disclosure is shown; Figure 2 One of the flowcharts illustrating a vehicle control method according to some embodiments of the present disclosure is shown; Figure 3 A second flowchart illustrating a vehicle control method according to some embodiments of the present disclosure is shown; Figure 4 Structural block diagrams of vehicle control devices according to some embodiments of the present disclosure are shown; Figure 5 Structural block diagrams of vehicles according to some embodiments of the present disclosure are shown. Detailed Implementation

[0019] To better understand the above-mentioned objectives, features, and advantages of this disclosure, the solutions disclosed herein will be further described below. It should be noted that, unless otherwise specified, the embodiments and features described herein can be combined with each other.

[0020] Numerous specific details are set forth in the following description in order to provide a full understanding of this disclosure, but this disclosure may also be implemented in other ways different from those described herein; obviously, the embodiments in the specification are only some, and not all, of the embodiments of this disclosure.

[0021] Some of the nouns or terms that appear in the description of the embodiments of this disclosure shall be interpreted as follows: PERCLOS (Percentage of Eyelid Closure over the Pupil over Time): The percentage of time the eyes are closed per unit of time.

[0022] LUX (Illuminance): Lux, a unit of illuminance used to measure the luminous flux per unit area.

[0023] BAWS (Driver Fatigue Monitor System): A driver fatigue warning system. This system continuously captures and analyzes driver fatigue characteristics in a non-contact manner.

[0024] DMS (Driver Monitoring System): The driver monitoring system includes BAWS and other extended functions, such as driver identification and driving behavior recognition.

[0025] Before describing the embodiments of this disclosure in detail, the technical background involved in this disclosure will be described here so that those skilled in the art can have a clearer understanding of the embodiments of this disclosure.

[0026] In the field of vehicle driving, the driver's level of concentration during driving is crucial to vehicle safety. When drivers become fatigued during long-distance driving, their reaction speed and judgment decline. In severe cases, drivers may be unable to react and handle abnormal vehicle conditions, such as lane departure or following too closely, leading to an increased risk of accidents.

[0027] To reduce the dangers of drowsy driving, a technology called BAWS (Drowsy Driving Warning System) has been proposed. This system determines the presence of drowsy driving by monitoring the driver's facial features, eye signals, and other physiological characteristics in real time. When BAWS detects drowsy driving, it provides a warning to the driver through audio and visual cues. Common warning methods include illuminating a drowsy driving warning light on the vehicle's dashboard, displaying the drowsy warning on the vehicle's head-up display (HUD), and displaying warning information and playing warning audio on the vehicle's central control screen or LCD instrument panel.

[0028] The core function of the aforementioned warning methods is to "remind" drivers that they need to stop and rest, but they cannot actually alleviate driver fatigue. In some scenarios, such as when a vehicle is traveling in a long tunnel, or on a highway and the distance to the next rest area or highway exit is far, drivers cannot stop immediately to rest. In these situations, these warning messages not only fail to solve the problem of fatigued driving, but can also easily cause driver distraction or irritability, thus interfering with normal driving behavior, increasing the risk of accidents, and affecting driving safety.

[0029] To address the aforementioned problems, this disclosure provides a vehicle control method, which is applied to a vehicle. For example, Figure 1 The following are schematic diagrams illustrating the system architecture of a vehicle according to some embodiments of this disclosure, such as... Figure 1 As shown, the vehicle 100 includes a driver monitoring system 102 and a cabin lighting device 104. The driver monitoring system 102 includes an infrared detection module 1022, which can collect the physiological characteristic data of the vehicle driver. The cabin lighting device 104 includes, but is not limited to, reading lights, ambient lights, and roof lights.

[0030] Figure 2 One of the flowcharts illustrating a vehicle control method according to some embodiments of this disclosure is shown, such as... Figure 2 As shown, the method includes: S202, acquire the driver's physiological characteristic data and determine the driver's fatigue level based on the physiological characteristic data.

[0031] In this embodiment of the disclosure, the driver's physiological characteristic data, exemplarily, includes one or more of the driver's eye characteristic data, driver's head posture data, and driver's facial characteristic data. Exemplarily, the eye characteristic data includes PERCLOS, i.e., the percentage of eyelid closure. Exemplarily, the head posture data includes the driver's nodding frequency. Exemplarily, the facial characteristic data includes the yawning frequency.

[0032] For example, the driver's physiological characteristics data can be obtained through the vehicle's driver monitoring system.

[0033] For example, the driver monitoring system includes an infrared detection module and an in-vehicle camera.

[0034] After obtaining the driver's physiological characteristic data, the driver's fatigue level is determined based on the physiological characteristic data.

[0035] For example, physiological characteristic data including PERCLOS, yawning frequency, and head nodding frequency are used. The detected physiological characteristic data are input into the vehicle's BAWS fatigue detection model, which comprehensively evaluates the driver's fatigue level based on PERCLOS, yawning frequency, and head nodding frequency.

[0036] S204, determine the corresponding target spectral parameters based on the degree of fatigue.

[0037] In this disclosure, the target spectral parameters are used to define the target illumination effect of the cockpit lighting device for bio-modulation of the driver.

[0038] For example, taking a vehicle ambient light as a cabin lighting device, the target spectral parameters can define the target lighting effect of the vehicle ambient light. For example, the target lighting effect includes the emitted color, emitted brightness, emitted duration, and emitted mode, etc.

[0039] For example, after obtaining the fatigue level, the vehicle's BAWS (Balanced Active Driver System) comprehensively determines whether the current driver's fatigue level exceeds a threshold, that is, whether fatigue intervention is needed. When the fatigue level does not exceed the threshold, the system remains in standby mode. When the fatigue level reaches or exceeds the threshold, the corresponding target spectral parameters are determined based on the fatigue level, thereby performing fatigue intervention operations on the driver.

[0040] S206 controls the cockpit lighting device to emit light based on the target spectral parameters.

[0041] In this embodiment, the human visual system exhibits varying sensitivities to different wavelengths of light. Furthermore, the levels of specific hormones in the human body change under stimulation by different wavelengths of light. For example, melanopsin reaches its peak sensitivity to light in the wavelength range of 460nm to 490nm, while the intrinsic photosensitive retinal ganglion system is most sensitive to light around 470nm, i.e., most sensitive to light with a near-blue-green tint. When the driver's visual nervous system is stimulated by light within this wavelength range, it effectively inhibits the secretion of melatonin in the driver's body while simultaneously increasing cortisol levels.

[0042] Melatonin is a hormone secreted by the pineal gland in the brain, and its main function is to relax the body and induce sleep. Cortisol is a hormone secreted by the adrenal cortex; cortisol levels can increase energy metabolism and enhance the excitability of the nervous system.

[0043] Therefore, by adjusting the lighting effects such as the color, intensity, and duration of light in the cockpit, non-contact physiological function regulation can be achieved, improving the driver's concentration and alertness without directly interfering with the driver's body.

[0044] Meanwhile, since reading lights, ambient lights, and other hardware devices in vehicles are mostly standard equipment, there is no need to change the existing design layout of the vehicle cabin, nor is it necessary to add additional complex hardware systems. By reusing existing cabin lighting devices or making certain modifications to existing cabin lighting devices, the embodiments of this disclosure can be implemented, which helps to control the hardware costs of the vehicle.

[0045] In this embodiment, when driver fatigue is detected based on physiological data, the vehicle's existing cabin lighting is controlled to emit light according to target spectral parameters corresponding to the driver's level of fatigue. This specific light emission method stimulates melanopsin, thereby inhibiting melatonin secretion and increasing cortisol levels, thus enhancing the driver's neural excitability and physiologically alleviating fatigue. Therefore, it can reduce driver fatigue and improve driving safety without interfering with the driving process.

[0046] Optionally, in some embodiments of this disclosure, the target spectral parameters include the target emission wavelength, the target emission intensity, and the target emission duration; Controlling the cockpit lighting to emit light includes: The cockpit lighting device is controlled to emit light at the target emission wavelength and intensity during the target emission duration.

[0047] In this embodiment of the disclosure, the target spectral parameters include, for example, the target emission wavelength, the target emission intensity, and the target emission duration.

[0048] The target emission wavelength determines the wavelength of the light emitted by the cockpit lighting device, and also determines the color of the emitted light. For example, the target emission wavelength ranges from 460 nm to 490 nm.

[0049] The target luminous intensity determines the brightness of the cabin lighting device when it emits light. For example, the target luminous intensity ranges from 30 LUX to 450 LUX.

[0050] The target illumination duration is specifically the minimum duration during which the cockpit lighting device illuminates according to the target's emission wavelength and intensity.

[0051] For example, if the target emission wavelength is 470nm, the target emission intensity is 200LUX, and the target emission duration is 60 seconds, then the cockpit lighting device will be controlled to emit light at the target emission wavelength and intensity within the target emission duration. Specifically, the cockpit lighting device will be controlled to continuously emit light with a wavelength of 470nm at a emission intensity of 200LUX for 60 seconds.

[0052] For example, in some embodiments, the cabin lighting device includes a conventional light-emitting unit and a fatigue intervention light-emitting unit. The conventional light-emitting unit can be a common LED (Light-Emitting Diode, Organic Light-Emitting Diode) light source, whose emission wavelength is not limited. The fatigue intervention light-emitting unit is capable of emitting light at a target emission wavelength. When driver fatigue is not detected, the conventional light-emitting unit operates to handle interior lighting or enhance the interior atmosphere. Upon detecting driver fatigue, the fatigue intervention light-emitting unit intervenes, emitting light with target spectral parameters.

[0053] For example, in other embodiments, the cockpit lighting device is a broad-spectrum light-emitting device. By adjusting the driving current, driving voltage, and the mixing method of multiple LED beads, the wavelength of the light emitted by the cockpit lighting device can be dynamically adjusted. For instance, when driver fatigue is not detected, the cockpit lighting device illuminates or turns off according to the user-set light emission mode. After driver fatigue is detected, the intervention system intervenes and controls the cockpit lighting device to adjust the light emission mode based on the target spectral parameters.

[0054] This embodiment of the invention, by adjusting parameters such as the emission wavelength, emission intensity, and emission duration of the vehicle's original cabin lighting device, can achieve non-physical intervention for driver fatigue without increasing additional hardware costs. While not affecting the driver's normal driving behavior, it reduces driver fatigue, thus effectively lowering the probability of accidents caused by driver fatigue.

[0055] Optionally, in some embodiments of this disclosure, the cockpit lighting device is controlled to emit light at the target emission wavelength and target emission intensity during the target emission duration, including: The cockpit lighting device is controlled to start with an initial emission wavelength and initial emission intensity, gradually increase the emission intensity and adjust the emission wavelength until the emission wavelength of the cockpit lighting device reaches the target emission wavelength and the emission intensity of the cockpit lighting device reaches the target emission intensity. After that, the cockpit lighting device is controlled to emit light at the target emission wavelength and target emission intensity for the target emission duration.

[0056] In this embodiment, after obtaining the driver's fatigue level, if the fatigue level exceeds a threshold, driver fatigue is determined, and intervention is required. At this time, based on the real-time fatigue level, corresponding target spectral parameters are determined, including the target emission wavelength, target emission intensity, and target emission duration. The cockpit lighting device is then controlled to emit light according to the target spectral parameters.

[0057] To minimize interference with the driver's driving behavior and prevent driver distraction due to sudden changes in lighting, the cabin lighting device is controlled to gradually adjust its wavelength and intensity. This process is repeated until the wavelength and intensity of the cabin lighting device are adjusted to the target wavelength and intensity.

[0058] For example, the current emission wavelength and current emission intensity of the cockpit lighting device before adjusting the emission parameters are defined as the initial emission wavelength and initial emission intensity, respectively. Assume the initial emission wavelength is 390 nm and the initial emission intensity is 20 LUX. Let the target emission wavelength be 470 nm, the target emission intensity be 200 LUX, and the target emission duration be 60 seconds. Then, the cockpit lighting device is controlled to start with a wavelength of 390 nm and gradually increase the emission wavelength to 470 nm. For example, the emission wavelength is adjusted by increasing it by 10 nm per second until the emission wavelength of the cockpit lighting device is adjusted from 390 nm to 470 nm. Simultaneously, starting with 20 LUX, the luminous intensity of the cockpit lighting device is controlled to gradually increase to 200 LUX. For example, the luminous intensity is increased by increasing it by 10 LUX per second until the luminous intensity of the cockpit lighting device reaches 200 LUX.

[0059] Once the emission wavelength of the cockpit lighting device is adjusted to 470nm and the emission brightness reaches 200LUX, the timer is started. Before the timer reaches 60 seconds, the cockpit lighting device is controlled to maintain the emission parameters unchanged.

[0060] In this embodiment of the invention, when the driver is fatigued by controlling the cabin lighting device with target spectral parameters, the cabin lighting device is controlled to slowly and gradually change the emission wavelength and emission intensity. Therefore, it can prevent the driver from being distracted by sudden changes in the vehicle's interior lighting, minimize interference with driving behavior, and ensure driving safety.

[0061] In some embodiments of this disclosure, optionally, the target spectral parameters are determined based on the degree of fatigue, including: Based on the fatigue level and the preset mapping relationship between fatigue level and spectral parameters, the target spectral parameters corresponding to the target fatigue level are determined. The fatigue level corresponds to the target fatigue level, which is one of mild fatigue, moderate fatigue, and severe fatigue. The bio-regulatory effect of the spectral parameters corresponding to mild fatigue, moderate fatigue, and severe fatigue increases in that order.

[0062] In this embodiment of the disclosure, for example, the vehicle's BAWS (Balanced AWS) pre-stores a mapping relationship between fatigue levels and spectral parameters. For example, this mapping relationship includes multiple fatigue levels, each fatigue level corresponding to a spectral parameter.

[0063] After obtaining the driver's current fatigue level, a corresponding target fatigue level is determined in the mapping relationship. The target fatigue level is the one in the mapping relationship that is closest to the driver's current fatigue level.

[0064] After determining the target fatigue level, the spectral parameters corresponding to the target fatigue level are determined based on the mapping relationship. These spectral parameters are the target spectral parameters.

[0065] For example, in the mapping relationship, the degree of fatigue includes mild fatigue, moderate fatigue, and severe fatigue. The target degree of fatigue is one of mild fatigue, moderate fatigue, and severe fatigue.

[0066] The greater the degree of fatigue, the stronger the intervention required for the driver, which means that the greater the biological regulatory effect of the spectral parameters used.

[0067] For example, the bioregulatory effect of the spectral parameters corresponding to severe fatigue is greater than that corresponding to moderate fatigue. The bioregulatory effect of the spectral parameters corresponding to moderate fatigue is greater than that corresponding to mild fatigue.

[0068] For example, the luminescence intensity corresponding to severe fatigue is greater than that corresponding to moderate fatigue. The luminescence intensity corresponding to moderate fatigue is greater than that corresponding to mild fatigue.

[0069] For example, the emission duration corresponding to severe fatigue is greater than that corresponding to moderate fatigue. The emission duration corresponding to moderate fatigue is greater than that corresponding to mild fatigue.

[0070] For example, when the target fatigue level is mild, the target emission wavelength ranges from 460nm to 490nm, the target emission intensity ranges from 40LUX to 60LUX, and the target emission duration ranges from 20 seconds to 40 seconds.

[0071] For example, when the target fatigue level is mild, the target emission wavelength is 470nm, the target emission intensity is 50LUX, and the target emission duration is 30 seconds.

[0072] For example, when the target fatigue level is moderate, the target emission wavelength ranges from 460nm to 490nm, the target emission intensity ranges from 100LUX to 200LUX, and the target emission duration ranges from 50 seconds to 70 seconds.

[0073] For example, when the target fatigue level is moderate, the target emission wavelength is 470nm, the target emission intensity is 150LUX, and the target emission duration is 60 seconds.

[0074] For example, when the target fatigue level is severe fatigue, the target emission wavelength ranges from 460nm to 490nm, the target emission intensity ranges from 250LUX to 450LUX, and the target emission duration ranges from 80 seconds to 120 seconds.

[0075] For example, when the target fatigue level is severe fatigue, the target emits a mixed light with wavelengths of 470nm and 490nm, the target emission intensity is 300LUX, and the target emission duration is 90 seconds.

[0076] This embodiment of the invention dynamically adjusts the target spectral parameters according to the driver's actual fatigue level. Therefore, it can ensure the fatigue intervention effect while avoiding the problem of the driver becoming accustomed to the intervention environment too early due to the direct use of the strongest intervention effect, thus causing the fatigue intervention to fail prematurely, and ensuring the fatigue relief effect on the driver.

[0077] Optionally, in some embodiments of this disclosure, the method further includes: When the target's fatigue level is severe, perform target intervention operations; The target intervention operation includes at least one of the following: playing target audio, controlling the vehicle's steering wheel to vibrate at the target vibration frequency, and controlling the vehicle's in-vehicle display screen to display target information.

[0078] In this embodiment, if the driver is determined to be severely fatigued, it indicates a high risk of driver fatigue driving, and the effect of intervening in driver fatigue by changing the lighting environment may be limited. In this case, while controlling the cabin lighting device to emit light based on the spectral parameters corresponding to severe fatigue, the vehicle is controlled to perform a target intervention operation. This target intervention operation enhances the fatigue intervention effect and simultaneously reminds the driver to stop and rest as soon as possible.

[0079] For example, the targeted intervention includes playing a targeted audio message. For example, the targeted audio message could be a reminder voice prompting the driver to stop and rest as soon as possible. For example, the targeted audio message could be music with a strong rhythm and high volume, stimulating the driver's auditory nervous system and thus encouraging the driver to remain alert.

[0080] For example, the targeted intervention operation includes controlling the vehicle's steering wheel to vibrate at a target vibration frequency. By vibrating the steering wheel, the driver is reminded to take a break, and the physical intervention stimulates the driver's nerves to prevent drowsiness.

[0081] For example, the target intervention operation includes displaying target information via an in-vehicle display screen. This in-vehicle display screen includes, but is not limited to, a digital instrument cluster, head-up display, vehicle infotainment display, and central control display. For example, the target information could be "You are driving while fatigued; please stop and rest as soon as possible."

[0082] This embodiment of the present disclosure enhances the level of intervention on the driver by performing targeted intervention operations when severe driver fatigue is detected, while simultaneously intervening with the driver through the cockpit lighting device and reminding the driver to stop and rest, thereby maximizing driving safety.

[0083] In some embodiments of this disclosure, optionally, Figure 3 A second flowchart illustrating a vehicle control method according to some embodiments of the present disclosure is shown, such as... Figure 3 As shown, after the cockpit lighting device emits light at the target emission wavelength and target emission intensity during the target emission duration, the method further includes: S302, update driver fatigue level.

[0084] In this embodiment of the disclosure, during the process of the driver driving the vehicle, the vehicle obtains the driver's physiological characteristic data in real time through the driver monitoring system and updates the driver's fatigue level in real time.

[0085] After the cockpit lighting system intervenes in driver fatigue, the updated driver fatigue level can reflect the effectiveness of the cockpit lighting system, which operates based on target spectral parameters, in inducing driver fatigue.

[0086] S304, if the updated fatigue level is less than the fatigue level threshold, control the cockpit lighting device to emit light at the initial emission wavelength and initial emission intensity, and generate intervention log information.

[0087] The fatigue threshold is used to determine whether the driver is fatigued. If the updated fatigue level is lower than the threshold, it indicates that the driver's fatigue has been alleviated. At this point, the cockpit lighting is restored to its initial emission wavelength and intensity to prevent prolonged environmental interference from causing the user's physical susceptibility to fatigue.

[0088] Simultaneously, the vehicle's BAWS (Balanced Access Controller) generates intervention log information based on this intervention event. For example, the intervention log information records the time when the driver became fatigued, the duration of the fatigue state, the target spectral parameters, and the time it took for the driver to recover from fatigue. Users can view the intervention log information safely.

[0089] S306, when the updated fatigue level is greater than or equal to the fatigue level threshold, increases the fatigue level and controls the cabin lighting device in the vehicle to emit light based on the target spectral parameters corresponding to the increased fatigue level.

[0090] In this embodiment of the disclosure, if the driver's updated fatigue level is still greater than or equal to the fatigue level threshold after the cockpit lighting device emits light based on the target spectral parameters, that is, the driver is still in a state of fatigue, then the fatigue intervention is ineffective.

[0091] At this point, BAWS increases the driver's fatigue level, with the increased fatigue level corresponding to a target spectral parameter with a stronger bio-regulatory effect. Using this stronger target spectral parameter, the vehicle's cabin lighting is then controlled again to continue fatigue intervention on the driver.

[0092] For example, after the driver's fatigue level increases to severe fatigue, and the cockpit lighting is activated based on the spectral parameters of a large target corresponding to severe fatigue, if the updated fatigue level is still greater than or equal to the fatigue threshold, it indicates that the fatigue intervention system is no longer able to alleviate the driver's fatigue state. At this point, preset safety actions can be performed. For example, these safety actions include activating the vehicle's hazard lights, playing an alarm audio, initiating a call to the driver's designated emergency contact, and reminding the driver to stop and rest as soon as possible.

[0093] This embodiment updates the driver's fatigue level in real time and performs corresponding operations based on a comparison between the updated fatigue level and a fatigue threshold. If the driver recovers from fatigue, the intervention is stopped to prevent the driver from developing a habit. If the driver is still fatigued, the fatigue level is increased to enhance the biological regulatory effect, thereby maximizing driving safety.

[0094] Optionally, in some embodiments of this disclosure, the method further includes: The driver's identity information is determined based on physiological characteristic data and the preset mapping relationship between physiological characteristic data and identity information; The target spectral parameters are determined based on the degree of fatigue, including: The initial spectral parameters are determined based on the driver's identity information and the user feature database; the user feature database stores at least one initial spectral parameter corresponding to an identity information. The target spectral parameters are determined based on the degree of fatigue and the initial spectral parameters.

[0095] In this embodiment of the disclosure, the vehicle's BAWS (Browser-Assisted Weather Approach) includes, exemplarily, a personalized adaptation module. For example, different drivers have different sensitivities to light. The same target spectral parameters may produce different biomodulation effects in different drivers.

[0096] In this embodiment, the present disclosure records initial spectral parameters through a personalized adaptation module. For example, the personalized adaptation module stores a mapping relationship between physiological characteristic data and identity information, that is, establishing an independent physiological characteristic database for each driver of the vehicle.

[0097] After the driver gets into the vehicle, the driver's physiological characteristic data is acquired through the DMS. The driver's identity information is then identified through a preset mapping relationship between the physiological characteristic data and identity information.

[0098] Meanwhile, the personalized adaptation module also includes a user feature database that stores the mapping relationship between different identity information and initial spectral parameters. After determining the current driver's identity information, inputting the identity information into the user feature database allows the system to retrieve the initial spectral parameters that match the current driver.

[0099] The initial spectral parameters include corrected data for the target spectral parameters under different fatigue levels.

[0100] After obtaining the current driver's fatigue level, the corresponding spectral parameters are first determined based on the fatigue level, and then the spectral parameters are corrected using the initial spectral parameters to obtain the corrected target spectral parameters.

[0101] The embodiments disclosed herein can generate personalized target spectral parameters for different drivers, thereby enabling drivers with different sensitivities to obtain appropriate bio-regulatory effects and ensuring fatigue relief for drivers.

[0102] This disclosure also provides a vehicle control device. Figure 4 Structural block diagrams of vehicle control devices according to some embodiments of the present disclosure are shown, such as... Figure 4 As shown, the control device 400 includes an acquisition module 402, a determination module 404, and a control module 406.

[0103] The acquisition module 402 is used to acquire the physiological characteristic data of the driver of the vehicle and determine the driver's fatigue level based on the physiological characteristic data; The determination module 404 is used to determine the corresponding target spectral parameters based on the degree of fatigue; the target spectral parameters are used to define the target lighting effect of the cockpit lighting device for bio-regulation of the driver. The control module 406 is used to control the cockpit lighting device to emit light based on the target spectral parameters.

[0104] In this embodiment, when driver fatigue is detected based on physiological data, the vehicle's existing cabin lighting is controlled to emit light according to target spectral parameters corresponding to the driver's level of fatigue. This specific light emission method stimulates melanopsin, thereby inhibiting melatonin secretion and increasing cortisol levels, thus enhancing the driver's neural excitability and physiologically alleviating fatigue. Therefore, it can reduce driver fatigue and improve driving safety without interfering with the driving process.

[0105] Optionally, in some embodiments of this disclosure, the target spectral parameters include the target emission wavelength, the target emission intensity, and the target emission duration; The control module is also used to control the cockpit lighting device to emit light at the target emission wavelength and target emission intensity during the target emission duration.

[0106] This embodiment of the invention, by adjusting parameters such as the emission wavelength, emission intensity, and emission duration of the vehicle's original cabin lighting device, can achieve non-physical intervention for driver fatigue without increasing additional hardware costs. While not affecting the driver's normal driving behavior, it reduces driver fatigue, thus effectively lowering the probability of accidents caused by driver fatigue.

[0107] In some embodiments of this disclosure, optionally, the control module is further configured to control the cockpit lighting device to gradually increase the luminous intensity and adjust the luminous wavelength starting from the initial luminous wavelength and initial luminous intensity, until the luminous wavelength of the cockpit lighting device reaches the target luminous wavelength, and after the luminous intensity of the cockpit lighting device reaches the target luminous intensity, control the cockpit lighting device to emit light continuously at the target luminous wavelength and target luminous intensity until the target luminous duration.

[0108] In this embodiment of the invention, when the driver is fatigued by controlling the cabin lighting device with target spectral parameters, the cabin lighting device is controlled to slowly and gradually change the emission wavelength and emission intensity. Therefore, it can prevent the driver from being distracted by sudden changes in the vehicle's interior lighting, minimize interference with driving behavior, and ensure driving safety.

[0109] In some embodiments of this disclosure, optionally, the determining module is further configured to determine the target spectral parameters corresponding to the target fatigue level based on the fatigue level and a preset mapping relationship between fatigue level and spectral parameters. The fatigue level corresponds to the target fatigue level, which is one of mild fatigue, moderate fatigue, and severe fatigue. The bioregulatory effect of the spectral parameters corresponding to mild fatigue, moderate fatigue, and severe fatigue increases progressively.

[0110] This embodiment of the invention dynamically adjusts the target spectral parameters according to the driver's actual fatigue level. Therefore, it can ensure the fatigue intervention effect while avoiding the problem of the driver becoming accustomed to the intervention environment too early due to the direct use of the strongest intervention effect, thus causing the fatigue intervention to fail prematurely, and ensuring the fatigue relief effect on the driver.

[0111] Optionally, in some embodiments of this disclosure, the control module is further configured to perform target intervention operations when the target fatigue level is severe fatigue; The target intervention operation includes at least one of the following: playing target audio, controlling the vehicle's steering wheel to vibrate at the target vibration frequency, and controlling the vehicle's in-vehicle display screen to display target information.

[0112] This embodiment of the present disclosure enhances the level of intervention on the driver by performing targeted intervention operations when severe driver fatigue is detected, while simultaneously intervening with the driver through the cockpit lighting device and reminding the driver to stop and rest, thereby maximizing driving safety.

[0113] Optionally, in some embodiments of this disclosure, the control device may further include an update module for updating the driver's fatigue level; The control module is also used to control the cockpit lighting device to emit light at the initial emission wavelength and initial emission intensity when the updated fatigue level is less than the fatigue level threshold, and to generate intervention log information. Furthermore, if the updated fatigue level is greater than or equal to the fatigue level threshold, the fatigue level is increased, and the cabin lighting device in the vehicle is controlled to emit light based on the target spectral parameters corresponding to the increased fatigue level.

[0114] This embodiment updates the driver's fatigue level in real time and performs corresponding operations based on a comparison between the updated fatigue level and a fatigue threshold. If the driver recovers from fatigue, the intervention is stopped to prevent the driver from developing a habit. If the driver is still fatigued, the fatigue level is increased to enhance the biological regulatory effect, thereby maximizing driving safety.

[0115] In some embodiments of this disclosure, optionally, the determining module is further configured to determine the driver's identity information based on physiological characteristic data and a preset mapping relationship between physiological characteristic data and identity information; Furthermore, the initial spectral parameters are determined based on the driver's identity information and the user feature database; the user feature database stores the initial spectral parameters corresponding to at least one identity information; and the target spectral parameters are determined based on the fatigue level and the initial spectral parameters.

[0116] The embodiments disclosed herein can generate personalized target spectral parameters for different drivers, thereby enabling drivers with different sensitivities to obtain appropriate bio-regulatory effects and ensuring fatigue relief for drivers.

[0117] This disclosure also provides a computer-readable storage medium storing a computer program thereon. When the computer program is executed by a processor, it implements the method steps as described in any of the above method embodiments. Therefore, this computer-readable storage medium can also achieve all the same technical effects. To avoid repetition, further details are omitted here.

[0118] This disclosure also provides a vehicle, Figure 5 Structural block diagrams of vehicles according to some embodiments of this disclosure are shown, such as Figure 5 As shown, vehicle 500 includes memory 502, processor 504, and computer program 506. The computer program 506 is stored in memory 502 and configured to be executed by processor 504 to implement the method steps as described in any of the above method embodiments; therefore, the vehicle can also achieve all the same technical effects. To avoid repetition, further details are omitted here.

[0119] It should be noted that, in this document, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0120] The above description is merely a specific embodiment of this disclosure, enabling those skilled in the art to understand or implement it. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of this disclosure. Therefore, this disclosure is not to be limited to the embodiments described herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A method for controlling a vehicle, characterized in that, The method includes: Acquire physiological characteristic data of the vehicle's driver, and determine the driver's fatigue level based on the physiological characteristic data; The target spectral parameters are determined based on the fatigue level; the target spectral parameters are used to define the target illumination effect of the cockpit lighting device for bio-regulating the driver. Based on the target spectral parameters, the cockpit lighting device is controlled to emit light.

2. The method according to claim 1, characterized in that, The target spectral parameters include the target emission wavelength, target emission intensity, and target emission duration; Controlling the cockpit lighting device to emit light includes: The cockpit lighting device is controlled to emit light at the target emission wavelength and the target emission intensity during the target emission duration.

3. The method according to claim 2, characterized in that, The control of the cockpit lighting device to emit light at the target emission wavelength and the target emission intensity during the target emission duration includes: The cockpit lighting device is controlled to gradually increase the luminous intensity and adjust the luminous wavelength starting from the initial luminous wavelength and initial luminous intensity, until the luminous wavelength of the cockpit lighting device reaches the target luminous wavelength and the luminous intensity of the cockpit lighting device reaches the target luminous intensity. After that, the cockpit lighting device is controlled to emit light continuously at the target luminous wavelength and target luminous intensity until the target luminous duration is reached.

4. The method according to claim 1, characterized in that, Determining the corresponding target spectral parameters based on the fatigue level includes: Based on the fatigue level and the preset mapping relationship between fatigue level and spectral parameters, the target spectral parameters corresponding to the target fatigue level are determined. The fatigue level corresponds to the target fatigue level, which is one of mild fatigue, moderate fatigue, and severe fatigue. The bioregulatory effect of the spectral parameters corresponding to mild fatigue, moderate fatigue, and severe fatigue increases in that order.

5. The method according to claim 4, characterized in that, The method further includes: If the target fatigue level is severe fatigue, perform a target intervention operation; The target intervention operation includes at least one of the following: playing target audio, controlling the vehicle's steering wheel to vibrate at the target vibration frequency, and controlling the vehicle's in-vehicle display screen to display target information.

6. The method according to claim 3, characterized in that, After the cockpit lighting device emits light at the target emission wavelength and the target emission intensity during the target emission duration, the method further includes: Update the driver's fatigue level; If the updated fatigue level is less than the fatigue level threshold, the cockpit lighting device is controlled to emit light at the initial emission wavelength and the initial emission intensity, and intervention log information is generated. If the updated fatigue level is greater than or equal to the fatigue level threshold, the fatigue level is increased, and the cabin lighting device in the vehicle is controlled to emit light based on the target spectral parameters corresponding to the increased fatigue level.

7. The method according to any one of claims 1 to 5, characterized in that, The method further includes: The driver's identity information is determined based on the physiological characteristic data and the preset mapping relationship between physiological characteristic data and identity information; Determining the corresponding target spectral parameters based on the fatigue level includes: Initial spectral parameters are determined based on the driver's identity information and the user feature database; the user feature database stores at least one initial spectral parameter corresponding to an identity information. The target spectral parameters are determined based on the fatigue level and the initial spectral parameters.

8. A vehicle control device, characterized in that, The device includes: The acquisition module is used to acquire the physiological characteristic data of the driver of the vehicle and determine the driver's fatigue level based on the physiological characteristic data. A determination module is used to determine the corresponding target spectral parameters based on the fatigue level; the target spectral parameters are used to define the target illumination effect of the cockpit lighting device for bio-regulating the driver. The control module is used to control the cabin lighting device to emit light based on the target spectral parameters.

9. A computer-readable storage medium having a computer program stored thereon, characterized in that, When the computer program is executed by a processor, it implements the method as described in any one of claims 1-7.

10. A vehicle, characterized in that, include: Memory; processor; as well as Computer programs; The computer program is stored in the memory and configured to be executed by the processor to implement the method as described in any one of claims 1-7.

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