CN-121989682-A - Vehicle-mounted HUD self-adaptive parameter adjustment method based on multi-mode fatigue monitoring

CN121989682ACN 121989682 ACN121989682 ACN 121989682ACN-121989682-A

Abstract

The invention relates to the technical field of automobiles, in particular to a vehicle-mounted HUD self-adaptive parameter adjustment method based on multi-mode fatigue monitoring, which comprises the steps of obtaining fatigue monitoring information and environmental light parameters of a driver in a vehicle to which the vehicle-mounted HUD belongs, wherein the fatigue monitoring information is obtained by processing according to the physiological characteristics of the monitored current driver; according to fatigue monitoring information, environment light parameters and a pre-established HUD parameter adjustment strategy, HUD parameter adjustment information which is adapted to eyes of a driver at the current moment is obtained, and according to the HUD parameter adjustment information, self-adaptive adjustment is carried out on HUD parameters. According to the invention, the HUD display parameters are dynamically adjusted based on the preset strategy by monitoring the fatigue monitoring information of the driver and the environmental light parameters in real time, so that intelligent self-adaptive adjustment is realized, multiple parameters can be automatically optimized according to the fatigue degree, visual fatigue is effectively relieved, eye comfort and driving safety are improved, and the distraction of manual adjustment is avoided.

Inventors

Han Tailong
LIANG GENGLONG
ZHANG GUONA
Jiao Demin
WANG XIAOGANG
WANG JUNYANG
ZHANG HUIFANG

Assignees

北京新能源汽车股份有限公司

Dates

Publication Date: 20260508
Application Date: 20251229

Claims (10)

1. A vehicle-mounted HUD self-adaptive parameter adjustment method based on multi-mode fatigue monitoring is characterized by comprising the following steps: the method comprises the steps of acquiring fatigue monitoring information and environmental light parameters of a driver in a vehicle to which a vehicle-mounted HUD belongs, wherein the fatigue monitoring information is obtained by processing according to the monitored physiological characteristics of the current driver; According to the fatigue monitoring information, the ambient light parameters and the pre-established HUD parameter adjustment strategy, HUD parameter adjustment information of the eyes of the driver at the current moment is obtained; And carrying out self-adaptive adjustment on the HUD parameters according to the HUD parameter adjustment information.
2. The method according to claim 1, wherein the method further comprises: receiving HUD parameter adjustment information input by a driver; And generating HUD parameter adjustment information which is adapted to eyes of the driver at the current moment according to HUD parameter adjustment information input by the driver, the fatigue monitoring information, the ambient light parameters and a pre-established HUD parameter adjustment strategy.
3. The method according to claim 1, wherein obtaining HUD parameter adjustment information adapted to the eyes of the driver at the current moment according to the fatigue monitoring information, the ambient light parameters and a pre-established HUD parameter adjustment strategy comprises: According to the fatigue monitoring information and the ambient illuminance determined by the ambient light parameters, corresponding HUD parameter adjustment information is obtained through calculation according to a mapping formula in at least one HUD parameter adjustment strategy: The brightness adjustment formula: Wherein L is fatigue grade in fatigue monitoring information, L E is reference brightness adjusted based on ambient illuminance, K Brightness of light is brightness adjustment coefficient, L Flicker and flash is flicker brightness increment, theta Fatigue of is brightness correction function, when the fatigue grade is highest, 1 is obtained, otherwise, 0 is obtained; contrast adjustment formula: Wherein, C E is the reference contrast adjusted based on ambient illuminance, K Contrast ratio is the contrast adjustment coefficient; Color temperature adjusting formula: Wherein T E is a reference color temperature adjusted based on ambient illuminance, K Color temperature is a color temperature adjustment coefficient, I is a night mode indication function, night is 1, and day is 0; refresh rate adjustment formula: Wherein K Refresh rate is a refresh rate adjustment coefficient.
4. A method according to claim 3, characterized in that the method further comprises: HUD parameter adjusting information input by a driver in a historical time period and fatigue monitoring information of the driver obtained during the input of the driver are obtained, and adjusting coefficients in the HUD parameter adjusting strategy are optimized and updated based on the HUD parameter adjusting information and the corresponding fatigue monitoring information.
5. The method of claim 1, wherein adaptively adjusting the HUD parameter according to the HUD parameter adjustment information comprises: According to the HUD parameter adjustment information, the HUD is controlled to adjust display parameters in a smooth transition mode so as to avoid visual discomfort caused by parameter mutation; wherein the smooth transition comprises at least one of: Controlling the change rate of the brightness parameter not to exceed a preset brightness change threshold; controlling the refresh rate parameter to adjust with a preset stepping amplitude; controlling the color temperature parameter and the contrast parameter to gradually change to a target value in a continuous or stepping mode; Controlling the switching of the display content is accompanied by a graphical transitional effect.
6. The method of claim 1, wherein prior to obtaining fatigue monitoring information of a driver in a vehicle to which the vehicle-mounted HUD belongs, the method further comprises: acquiring physiological characteristics of a current driver in real time; preprocessing physiological characteristics, inputting a specified fatigue quantization level model, and obtaining fatigue monitoring information with fatigue level.
7. The method according to claim 1, wherein the method further comprises: If the fatigue monitoring information is the fatigue monitoring information with the specified level or more, the prompting information for alarming is sent to the vehicle-mounted system, so that the vehicle-mounted system alarms the current driver according to the prompting information.
8. A vehicle-mounted HUD, comprising: The HUD control unit is used for receiving fatigue monitoring information and environment light parameters of a driver in a vehicle to which the vehicle-mounted HUD belongs, and generating HUD parameter adjustment information according to the fatigue monitoring information, the environment light parameters and a preset HUD parameter adjustment strategy; and the HUD display unit is used for adjusting display parameters according to the HUD parameter adjustment information.
9. A vehicle comprising an onboard HUD according to claim 8, a plurality of monitoring devices and an onboard control device; the monitoring devices are used for collecting physiological characteristics of a driver and collecting environmental light parameters; The vehicle-mounted control device is used for acquiring fatigue monitoring information according to the physiological characteristics acquired by the monitoring device; The vehicle-mounted HUD is used for receiving the fatigue monitoring information from the vehicle-mounted control device and the ambient light parameters from the monitoring device, and generating HUD parameter adjustment information according to the fatigue monitoring information, the ambient light parameters and a preset HUD parameter adjustment strategy so as to adjust display parameters.
10. The vehicle according to claim 9, wherein the in-vehicle control device is further configured to generate a prompt message for warning when the fatigue monitoring information is fatigue monitoring information of a specified level or more; the vehicle also comprises a vehicle-mounted alarm device which is used for triggering safety reminding according to the prompt information.

Description

Vehicle-mounted HUD self-adaptive parameter adjustment method based on multi-mode fatigue monitoring Technical Field The invention relates to the technical field of automobiles, in particular to a vehicle-mounted HUD self-adaptive parameter adjusting method based on multi-mode fatigue monitoring. Background Along with the intelligent development of automobiles, a vehicle-mounted head-up display system (HUD) has become an important configuration for improving driving safety because the HUD can project key driving information in front of a driver, so that sight line transfer is reduced. However, the currently mainstream HUD parameter adjustment schemes have significant shortcomings that on one hand, most systems only support fixed parameters or rely on drivers to manually adjust through a vehicle screen and physical keys, the mode cannot respond according to the physiological state of the drivers changing in real time, and on the other hand, the existing schemes generally neglect the influence of the fatigue state of the drivers on visual perception. Fixed or improper HUD display parameters can exacerbate visual fatigue and even lead to the inability of critical information to be clearly identified, buried potential safety hazards. Accordingly, there is a need to provide a solution to the above-mentioned problems. Disclosure of Invention In order to solve the technical problems, the invention provides a vehicle-mounted HUD self-adaptive parameter adjusting method based on multi-mode fatigue monitoring. In a first aspect, the invention provides a vehicle-mounted HUD self-adaptive parameter adjustment method based on multi-mode fatigue monitoring, which has the following technical scheme: the method comprises the steps of acquiring fatigue monitoring information and environmental light parameters of a driver in a vehicle to which a vehicle-mounted HUD belongs, wherein the fatigue monitoring information is obtained by processing according to the monitored physiological characteristics of the current driver; According to the fatigue monitoring information, the ambient light parameters and the pre-established HUD parameter adjustment strategy, HUD parameter adjustment information of the eyes of the driver at the current moment is obtained; And carrying out self-adaptive adjustment on the HUD parameters according to the HUD parameter adjustment information. The vehicle-mounted HUD self-adaptive parameter adjusting method based on multi-mode fatigue monitoring has the following beneficial effects: According to the method, the fatigue monitoring information and the ambient light parameters of the driver are monitored in real time, the HUD display parameters are dynamically adjusted based on the preset strategy, intelligent self-adaptive adjustment is achieved, multiple parameters can be automatically optimized according to the fatigue degree, visual fatigue is effectively relieved, eye comfort and driving safety are improved, and the distraction of manual adjustment is avoided. Based on the scheme, the vehicle-mounted HUD self-adaptive parameter adjusting method based on the multi-mode fatigue monitoring can be improved as follows. In an alternative, the method further comprises: receiving HUD parameter adjustment information input by a driver; And generating HUD parameter adjustment information which is adapted to eyes of the driver at the current moment according to HUD parameter adjustment information input by the driver, the fatigue monitoring information, the ambient light parameters and a pre-established HUD parameter adjustment strategy. In the above optional manner, by receiving the HUD parameter adjustment information input by the driver and using the HUD parameter adjustment information, fatigue monitoring information and ambient light parameters together to generate final HUD parameter adjustment information, the automatic adjustment is achieved, and meanwhile, the personal preference and manual intervention of the user are respected and responded immediately, so that the display effect conforming to the current subjective feeling of the driver can be obtained at any moment, and the good balance between automation and manual control right is achieved. In an optional manner, according to the fatigue monitoring information, the ambient light parameter and the pre-established HUD parameter adjustment policy, obtaining HUD parameter adjustment information adapted to eyes of the driver at the current moment includes: According to the fatigue monitoring information and the ambient illuminance determined by the ambient light parameters, corresponding HUD parameter adjustment information is obtained through calculation according to a mapping formula in at least one HUD parameter adjustment strategy: The brightness adjustment formula: Wherein L is fatigue grade in fatigue monitoring information, L E is reference brightness adjusted based on ambient illuminance, K Brightness of light is brightness adjustment coef