A method and system for monitoring and warning of fatigue driving

Abstract

The present invention discloses a method and system for monitoring and warning of fatigue driving. Hardware configuration is carried out on an automobile, and at least an input sensor group, a reminder device group and a fatigue warning integration assembly are configured. The fatigue warning integration assembly is connected to a controller on the automobile through at least one communication method, and the method includes the following steps: S1. A warning controller in the fatigue warning integration assembly receives input signals of the input sensor group, and makes a fatigue driving warning judgment according to the input signals of the input sensor group and feedback signals of the controller on the automobile; S2. The warning controller outputs a fatigue driving warning signal to drive the reminder device group, and uses a composite reminder method to give a targeted and progressive fatigue driving warning to the driver; Through the implementation of the present invention, the intervention measures are enriched, the accuracy and reliability of fatigue warning are improved, and significant improvements are achieved in terms of pertinence and progressiveness.

Description

Technical Field

[0001] The present invention relates to the technical field of automotive safety, and particularly to a method and system for monitoring and warning of fatigue driving. Background Art

[0002] With the rapid development and technological progress of the automotive industry, traffic accidents caused by driver fatigue are not uncommon. Traditional in-vehicle fatigue monitoring systems mainly rely on visual detection, physiological signal monitoring and other methods to determine whether the driver is in a fatigued state. When it is found that the driver may be fatigued, the existing intervention measures are relatively single, usually limited to sound or light alarms, and the reminder methods are relatively single. There are certain deficiencies in the pertinence and progression of the warning reminder methods.

[0003] In summary, a method and system for monitoring and warning of fatigue driving are needed to solve the deficiencies existing in the prior art. Summary of the Invention

[0004] In view of the deficiencies of the prior art, the present invention provides a method and system for monitoring and warning of fatigue driving, aiming to solve the above problems.

[0005] To achieve the above object, the present invention provides the following technical solution: A method for monitoring and warning of fatigue driving, which performs hardware configuration on an automobile, and is at least configured with an input sensor group, a reminder device group, and a fatigue warning integration assembly. The fatigue warning integration assembly is connected to the controller on the automobile through at least one communication method, and the controller is connected to an actuator, and includes the following steps:

[0006] S1. The warning controller in the fatigue warning integration assembly receives the input signals of the input sensor group, and makes a fatigue driving warning judgment according to the input signals of the input sensor group and the feedback signals of the controller on the automobile.

[0007] S2. The warning controller outputs a fatigue driving warning signal to drive the reminder device group, and uses a composite reminder method to perform targeted and progressive fatigue driving warning on the driver. At the same time, the warning controller provides the fatigue driving warning signal to the controller on the automobile.

[0008] S3. The controller and the actuator on the automobile perform further fatigue driving warning according to the settings. By outputting a fatigue driving warning signal through the warning controller to drive the reminder device group to perform a composite reminder method to perform targeted and progressive fatigue driving warning on the driver, and combining with further fatigue driving warning, the intervention measures are enriched, the accuracy and reliability of the fatigue warning are improved, and there is a significant improvement in pertinence and progression.

[0009] Further, in the step S2, the method for performing targeted and progressive fatigue driving warning on the driver by using a composite reminder method includes the following steps:

[0010] S21. Record the standard pressure distribution of the driver's hands on the steering wheel in the non-fatigued state through the input sensor group during the initial calibration phase;

[0011] S22. The warning controller receives the data from the input sensor group and analyzes it to determine the area where pressure is applied and the magnitude of the pressure applied in that area;

[0012] S23. Compare with the pre-recorded standard pressure distribution to judge the specific area where the current driver's palm is located;

[0013] S24: Establish the mapping relationship between the input sensor group and the reminder device group, and determine the corresponding linear resonance actuator module in the reminder device group according to the judgment result of the area where the palm is located;

[0014] S25: When it is judged that the specific area where the current driver's palm is located is area A, dynamically select and activate the linear resonance actuator module in area A based on the specific area where the palm is located M A and the linear resonance actuator modules in the two side areas M A-1 The linear resonance actuator module M A+1 , and set the priority of the linear resonance actuator module M A to be higher than that of the linear resonance actuator module M A-1 and the linear resonance actuator module M A+1 ;

[0015] S26: Adjust the vibration intensity and frequency of the linear resonance actuator module M A and the linear resonance actuator modules in the two side areas M A-1 The linear resonance actuator module M A+1 based on predefined rules or learned driver preferences.

[0016] Furthermore, in step S23, the formula for judging the specific area where the current driver's palm is located is as follows:

[0017] ,

[0018] where is the score of the j-th palm position, n is the number of input sensors, is the pressure value measured by the i-th pressure sensor, is a preset threshold for distinguishing whether there is palm contact with the input sensor. is the importance weight of the area corresponding to the i-th input sensor. is the correlation coefficient between the i-th input sensor and the j-th palm position.

[0019] Further, in step S26, adjusting the linear resonance execution module M A and the linear resonance execution modules in the two side regions M A-1 , the linear resonance execution module M A+1 The method for the vibration intensity and frequency includes the following steps:

[0020] S261. First, set the reference intensity and frequency when the driver is awake for each linear resonance execution module in the reminder device group, and adjust the increment of the reference value according to the warning level;

[0021] S262. The warning controller controls the linear resonance execution module M A to perform feedback reminder with the reference intensity and frequency;

[0022] S263. Continuously monitor the driver's status data through the fatigue warning integration assembly, and transmit the data to the warning controller. The warning controller analyzes the driver's status change according to the received data;

[0023] S264. When it is judged that the driver's status changes to awake, keep the corresponding linear resonance execution module working at the reference intensity and frequency for a specified time. When it is judged that the driver's status does not change, further activate the linear resonance execution module M A-1 and the linear resonance execution module M A+1 , and increase the increment of the reference value of the linear resonance execution module M A to perform feedback reminder;

[0024] S265. When the driver's status continues not to change, judge the current status as severe fatigue, and activate all the linear resonance execution modules in the reminder device group for comprehensive feedback reminder;

[0025] S266. Dynamically adjust the proportional factor according to the driver's reaction to different vibration intensities and frequencies for more personalized warning prompts.

[0026] Further, in step S26, adjusting the linear resonance execution module M A and the linear resonance execution modules in the two side regionsM A-1 and the linear resonance execution module M A+1 has the following formulas for vibration intensity and frequency:

[0027] ;

[0028] ;

[0029] wherein, is the reference intensity of the linear resonance execution module M A , is the reference frequency of the linear resonance execution module M A , is the default intensity reference value of the system, is the default frequency reference value of the system, and are both increments relative to the reference value, is the intensity of the linear resonance execution module M A-1 , is the frequency of the linear resonance execution module M A+1 , is the scale factor of the vibration intensity, is the scale factor of the vibration frequency.

[0030] Furthermore, in the step S3, the controller and actuator on the vehicle perform further fatigue driving warnings according to the settings, including specifically adjusting the in-vehicle environment settings to promote the driver's wakefulness.

[0031] Furthermore, the method for adjusting the in-vehicle environment settings includes the following steps:

[0032] Step 31: Based on the in-vehicle fatigue monitoring system detecting that there are still potential signs of fatigue driving, then obtain the current air-conditioning mode information in the vehicle through the controller on the vehicle;

[0033] Step 32: If the air-conditioning mode is in the recirculation state, then change the recirculation mode to the fresh air mode; if the air-conditioning mode is in the fresh air mode, then control to open the window and at the same time control to turn off the steering wheel heating.

[0034] Furthermore, the method for specifically adjusting the in-vehicle environment settings further includes a personalized warning optimization step based on historical data analysis, specifically as follows:

[0035] Step 33: The fatigue warning integration assembly collects and stores the driver's behavior data during each driving process;

[0036] Step 34: Analyze the above historical data through a machine learning algorithm to identify the unique driving habits and fatigue tendency patterns of each driver;

[0037] Step 35: According to the identified patterns, customize personalized warning thresholds and reminder strategies for each driver to improve the effectiveness and pertinence of warnings.

[0038] On the other hand, a fatigue driving monitoring and warning system uses a fatigue driving monitoring and warning method as described above and is connected to the controller on the vehicle through a communication bus. It includes an input sensor group for detecting the pressure on the current steering wheel, a first reminder device group configured on the inner layer of the rim of the steering wheel, a second reminder device group, and a fatigue warning integration assembly configured at the trim cover bracket. The fatigue warning integration assembly includes a communication device for connecting to the communication bus, a display module for human-computer interaction, and a warning controller for fatigue driving warning monitoring. The warning controller receives the input signals of the input sensor group to make a fatigue driving warning judgment. When it is judged as a fatigue driving warning, the warning controller outputs a fatigue driving warning signal to drive the first reminder device group and the second reminder device group to act, and gives a targeted and progressive fatigue driving warning to the driver. The warning controller is connected to the CAN bus through the communication device and provides a fatigue driving warning signal to the controller and actuator on the vehicle, and the controller on the vehicle performs further fatigue driving warnings according to the settings.

[0039] Furthermore, the input sensor group and the first reminder device group are array-mounted on the rim of the steering wheel, the second reminder device group is embedded in the rim of the steering wheel, the communication device and the warning controller are both mounted on one side of the trim cover bracket close to the rim of the steering wheel, the display module is fixedly mounted on the other side of the trim cover bracket away from the communication device and the warning controller, and a trim cover and a display screen cover plate for protecting the display module are mounted on the trim cover bracket.

[0040] Substantive effects of the present invention:

[0041] 1. In the present invention, by setting the warning controller to output a fatigue driving warning signal to drive the reminder device group to perform a composite reminder method to give a targeted and progressive fatigue driving warning to the driver, and combining with further fatigue driving warnings, the intervention measures are enriched, the accuracy and reliability of fatigue warnings are improved, and there is a significant improvement in terms of pertinence and progressiveness.

[0042] 2. In the present invention, by setting the first reminder device group and the second reminder device group, the reminder intensity is gradually increased in a progressive manner to ensure that the driver can notice the warning information in time, while avoiding excessive stimulation from affecting driving safety.

[0043] 3. In the present invention, by making targeted adjustments to the in-vehicle environment, functions such as automatically adjusting the air-conditioning mode, the degree of window opening and closing, and steering wheel heating are adjusted, enhancing the driver's perception of changes in the driving environment, creating a driving environment that is more conducive to maintaining wakefulness, thereby achieving the effect of combined reminders. BRIEF DESCRIPTION OF THE DRAWINGS

[0044] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings.

[0045] Figure 1 It is a flowchart of the present invention.

[0046] Figure 2 It is a system principle block diagram of the present invention.

[0047] Figure 3 It is an exploded view of the steering wheel structure of the present invention.

[0048] Figure 4 It is a system principle block diagram of Embodiment 4 of the present invention.

[0049] In the figure: 100 - steering wheel, 101 - trim cover bracket, 1011 - trim cover; 10 - input sensor group, 20 - first reminder device group, 30 - second reminder device group, 40 - fatigue warning integration assembly, 41 - communication device, 42 - display module, 421 - display screen cover plate, 43 - warning controller; 200 - controller; 300 - actuator. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0050] To facilitate the understanding of the present invention, the following will provide a more detailed description of the present invention in conjunction with the drawings and specific embodiments. It should be noted that when an element is described as "fixed to" another element, it can be directly on the other element, or there can be one or more intermediate elements therebetween. When an element is described as "connected to" another element, it can be directly connected to the other element, or there can be one or more intermediate elements therebetween. The terms "vertical", "horizontal", "left", "right" and similar expressions used in this specification are only for the purpose of illustration.

[0051] Unless otherwise defined, all technical and scientific terms used in this specification have the same meaning as commonly understood by those skilled in the technical field to which this invention belongs. The terms used in the specification of this invention are only for the purpose of describing specific embodiments and are not intended to limit the invention. The term "and / or" used in this specification includes any and all combinations of one or more of the related listed items. Example 1:

[0052] As Figure 1 shown, this embodiment provides a fatigue driving monitoring and warning method. Hardware configuration is carried out on an automobile, at least including an input sensor group, a reminder device group, and a fatigue warning integration assembly. The fatigue warning integration assembly is connected to the controller on the automobile through at least one communication method. The controller is connected to an actuator, and the method includes the following steps:

[0053] S1. The warning controller in the fatigue warning integration assembly receives the input signals of the input sensor group, and makes a fatigue driving warning judgment based on the input signals of the input sensor group and the feedback signals of the controller on the automobile.

[0054] S2. The warning controller outputs a fatigue driving warning signal to drive the reminder device group, and uses a composite reminder method to give a targeted and progressive fatigue driving warning to the driver. At the same time, the warning controller provides the fatigue driving warning signal to the controller on the automobile.

[0055] S3. The controller and actuator on the automobile perform further fatigue driving warnings according to the settings.

[0056] As Figure 2 , Figure 3As shown in the figure, Embodiment 1 of the present invention further provides a fatigue driving monitoring and warning system, which uses the fatigue driving monitoring and warning method as described above and is connected to the controller 200 on the vehicle through a communication bus. The system includes an input sensor group 10 for detecting the pressure on the current steering wheel 100, a first reminder device group 20 configured on the inner layer of the rim of the steering wheel 100, a second reminder device group 30, and a fatigue warning integration assembly 40 configured at the trim cover bracket 101. The fatigue warning integration assembly 40 includes a communication device 41 for connecting to the communication bus, a display module 42 for performing human-computer interaction, and a warning controller 43 for performing fatigue driving warning monitoring. The warning controller 43 receives the input signal of the input sensor group 10 to make a fatigue driving warning judgment. When it is judged as fatigue driving, the warning controller 43 outputs a fatigue driving warning signal to drive the first reminder device group 20 and the second reminder device group 30 to act, so as to give a targeted and progressive fatigue driving warning to the driver. The warning controller 43 is connected to the CAN bus through the communication device 41 and provides a fatigue driving warning signal to the controller 200 and the actuator 300 on the vehicle. The controller 200 on the vehicle performs further fatigue driving warning according to the setting.

[0057] As an implementation manner, the input sensor group 10 and the first reminder device group 20 are array-mounted on the rim of the steering wheel 100, the second reminder device group 30 is embedded in the rim of the steering wheel 100, the communication device 41 and the warning controller 43 are both mounted on one side of the trim cover bracket 101 close to the rim of the steering wheel 100, the display module 42 is fixedly mounted on one side of the trim cover bracket 101 away from the communication device and the warning controller, and a trim cover 1011 and a display screen cover plate 421 for protecting the display module 42 are mounted on the trim cover bracket 101.

[0058] As an implementation manner, the input sensor group 10 is a sensor array composed of several thin-film pressure sensors, the first reminder device group 20 is a motor array composed of several linear resonance actuator modules, the number of thin-film pressure sensors is the same as that of the linear resonance actuator modules, and the second reminder device group 30 is a resistance heating wire embedded in the inner layer material of the rim of the steering wheel 100. Embodiment 2:

[0059] As Figure 1 As shown in the figure, the present embodiment provides a fatigue driving monitoring and warning method, which performs hardware configuration on a vehicle, and at least configures an input sensor group, a reminder device group, and a fatigue warning integration assembly. The fatigue warning integration assembly is connected to the controller on the vehicle through at least one communication method, and the controller is connected to an actuator. The method includes the following steps:

[0060] S1. The warning controller in the fatigue warning integration assembly receives the input signals from the input sensor group, and makes a judgment on fatigue driving warning according to the input signals from the input sensor group and the feedback signals from the controllers on the vehicle.

[0061] S2. The warning controller outputs a fatigue driving warning signal to drive the reminder device group, and uses a composite reminder method to give a targeted and progressive fatigue driving warning to the driver. At the same time, the warning controller provides the fatigue driving warning signal to the controller on the vehicle.

[0062] As an implementation manner, in step S2, the method of using a composite reminder method to give a targeted and progressive fatigue driving warning to the driver includes the following steps:

[0063] S21. Record the standard pressure distribution of the driver's hands on the steering wheel in the non-fatigued state through the input sensor group during the initial calibration stage.

[0064] S22. The warning controller receives the data from the input sensor group and analyzes it to determine the area where pressure is applied and the magnitude of the pressure applied in this area.

[0065] S23. Compare with the pre-recorded standard pressure distribution to judge the specific area where the current driver's palm is located and whether there are abnormal conditions.

[0066] As an implementation manner, in step S23, the formula for judging the specific area where the current driver's palm is located is as follows:

[0067] ,

[0068] where, is the score of the jth palm position, n is the number of input sensors, is the pressure value measured by the ith input sensor, is a preset threshold for distinguishing whether there is a palm touching this input sensor, is the importance weight of the area corresponding to the ith input sensor, is the correlation coefficient between the ith input sensor and the jth palm position, reflects the importance degree of this sensor for determining a specific palm position;

[0069] As an implementation manner, in step S23, when it is judged that the current driver's palm is not on the steering wheel, it is considered that there are abnormal conditions in the current driver's state.

[0070] S24: Establish a mapping relationship between the input sensor group and the reminder device group, and determine the corresponding linear resonance actuator module in the reminder device group according to the judgment result of the area where the palm is located.

[0071] S25: When it is determined that the specific area where the current driver's palm is located is area A, based on the specific area where the palm is located, dynamically select and activate the linear resonance execution module in area A M A and the linear resonance execution modules in the two side areas M A-1 and the linear resonance execution module M A+1 , and set the priority of the linear resonance execution module M A to be higher than that of the linear resonance execution module M A-1 and the linear resonance execution module M A+1 ;

[0072] S26: Based on predefined rules or learned driver preferences, adjust the vibration intensity and frequency of the linear resonance execution module M A and the linear resonance execution modules in the two side areas M A-1 and the linear resonance execution module M A+1 .

[0073] As an implementation manner, in step S26, the method for adjusting the vibration intensity and frequency of the linear resonance execution module M A and the linear resonance execution modules in the two side areas M A-1 and the linear resonance execution module M A+1 includes the following steps:

[0074] S261: First, set the reference intensity and frequency when the driver is awake for each linear resonance execution module in the reminder device group, and adjust the increment of the reference value according to the warning level;

[0075] S262: The warning controller controls the linear resonance execution module M A to give feedback reminders at the reference intensity and frequency;

[0076] S263: Continuously monitor the driver's status data through the fatigue warning integration assembly, and transmit the data to the warning controller. The warning controller analyzes the driver's status change according to the received data;

[0077] S264: When it is determined that the driver's status changes to awake, make the corresponding linear resonance execution module work at the reference intensity and frequency for a specified time. When it is determined that the driver's status does not change, further activate the linear resonance execution moduleM A-1 and the linear resonance execution module M A+1 , and increase the linear resonance execution module M A The increment of the reference value is fed back for reminder;

[0078] S265. When the driver's state remains unchanged, it is determined that the current state is severe fatigue, and all the linear resonance execution modules in the reminder device group are activated for comprehensive feedback reminder;

[0079] S266. According to the driver's reaction to different vibration intensities and frequencies, dynamically adjust the proportionality factor for more personalized warning prompts.

[0080] As an implementation, in step S26, adjust the linear resonance execution module M A and the linear resonance execution modules in both side regions M A-1 、the linear resonance execution module M A+1 The formulas for the vibration intensity and frequency are as follows:

[0081] ;

[0082] ;

[0083] Among them, is the reference intensity of the linear resonance execution module M A , is the reference frequency of the linear resonance execution module M A , is the default intensity reference value of the system, is the default frequency reference value of the system, and are both increments relative to the reference value and can be adjusted according to different warning levels, is the intensity of the linear resonance execution module M A-1 , is the frequency of the linear resonance execution module M A+1 , is the proportionality factor of the vibration intensity, is the proportionality factor of the vibration frequency ( and are used to adjust the linear resonance execution module M A-1 and the linear resonance execution module MA+1 Relative to the linear resonance execution module M A (intensity and frequency).

[0084] S3. The controller and actuator on the vehicle perform further fatigue driving warnings according to the settings.

[0085] As an implementation manner, in step S3, the controller and actuator on the vehicle perform further fatigue driving warnings according to the settings, including specifically adjusting the in-vehicle environment settings to promote the driver's wakefulness.

[0086] As an implementation manner, the method for specifically adjusting the in-vehicle environment settings includes the following steps:

[0087] Step 31: Based on the in-vehicle fatigue monitoring system detecting that there are still potential signs of fatigue driving, then obtain the current air-conditioning mode information in the vehicle through the controller on the vehicle;

[0088] Step 32: If the air-conditioning mode is in the recirculation state, then change the circulation mode to the fresh air mode; if the air-conditioning mode is in the fresh air mode, then control to open the window and at the same time control to turn off the steering wheel heating.

[0089] As an implementation manner, through the specific adjustment of the in-vehicle environment settings, increase the changes in the driving environment, promote the driver's perception of the environmental changes, and thus achieve the effect of combined reminder.

[0090] As an implementation manner, the method for specifically adjusting the in-vehicle environment settings also includes a personalized warning optimization step based on historical data analysis, specifically as follows:

[0091] Step 33: The fatigue warning integration assembly collects and stores the driver's behavior data during each driving process, including but not limited to the steering wheel operation mode, reaction time, physiological parameters, and responses to different warning levels;

[0092] Step 34: Analyze the above historical data through machine learning algorithms to identify the unique driving habits and fatigue tendency patterns of each driver;

[0093] Step 35: According to the identified patterns, customize personalized warning thresholds and reminder strategies for each driver to improve the effectiveness and pertinence of the warnings.

[0094] On the other hand, such as Figure 2 、 Figure 3As shown in the figure, this embodiment provides a fatigue driving monitoring and warning system, which uses the fatigue driving monitoring and warning method as described above and is connected to the controller 200 on the vehicle through a communication bus. The system includes an input sensor group 10 for detecting the pressure on the current steering wheel 100, a first reminder device group 20 configured on the inner layer of the rim of the steering wheel 100, a second reminder device group 30, and a fatigue warning integration assembly 40 configured at the trim cover bracket 101. The fatigue warning integration assembly 40 includes a communication device 41 for connecting to the communication bus, a display module 42 for performing human-machine interaction, and a warning controller 43 for performing fatigue driving warning monitoring. The warning controller 43 receives the input signal of the input sensor group 10 to make a fatigue driving warning judgment. When it is judged as fatigue driving, the warning controller 43 outputs a fatigue driving warning signal to drive the first reminder device group 20 and the second reminder device group 30 to act, so as to perform targeted and progressive fatigue driving warnings on the driver. The warning controller 43 is connected to the CAN bus through the communication device 41 and provides a fatigue driving warning signal to the controller 200 and the actuator 300 on the vehicle. The controller 200 on the vehicle performs further fatigue driving warnings according to the settings.

[0095] As an implementation manner, the input sensor group 10 and the first reminder device group 20 are installed on the rim of the steering wheel 100 in an array manner, the second reminder device group 30 is embedded in the rim of the steering wheel 100, the communication device 41 and the warning controller 43 are both installed on one side of the trim cover bracket 101 close to the rim of the steering wheel 100, the display module 42 is fixedly installed on the side of the trim cover bracket 101 far from the communication device and the warning controller, and a trim cover 1011 and a display screen cover plate 421 for protecting the display module 42 are installed on the trim cover bracket 101.

[0096] As an implementation manner, the input sensor group 10 is a sensor array composed of a plurality of capacitive pressure sensors, and the first reminder device group 20 is a motor array composed of a plurality of rotating eccentric mass motors. The second reminder device group 30 is a resistance heating wire embedded in the inner layer material of the rim of the steering wheel 100. Embodiment 3:

[0097] This embodiment is basically the same as Embodiment 2, except that in this embodiment, to prevent discomfort caused by starting the fatigue driving monitoring and warning method, the initial operation and startup of the fatigue driving monitoring and warning method in this embodiment require the confirmation of the user. At the same time, the user confirmation effect in this embodiment needs to be reactivated as the time when the warning part in the fatigue driving monitoring and warning method is not activated prolongs. That is, in the case of not starting the warning for a long time, even if the initial confirmation has been passed, the fatigue driving monitoring and warning method in this embodiment still requires the driver to perform a startup confirmation operation. At the same time, if the controller 200 on the vehicle determines that the current driver is a person who is driving this vehicle for the first time, the fatigue driving monitoring and warning method in this embodiment also needs to perform a confirmation. In this embodiment, whether it is determined that the fatigue driving monitoring and warning method is in its initial operation and the warning part needs to be reactivated for subsequent confirmation is directly obtained by the fatigue warning integration assembly 40 based on the number of times the fatigue driving monitoring and warning method has run and the non-activated time. And the signal indicating that the current driver is a person who is driving this vehicle for the first time is sent by the controller 200 on the vehicle with this function and transmitted to the fatigue warning integration assembly 40 via the CAN bus for execution. When the startup of the fatigue driving monitoring and warning method in this application requires the driver's confirmation, the driver performs a startup confirmation and gives notice through the display module 42 (touch display screen) for human-machine interaction. After being confirmed by the driver, the vehicle performs one or two complete targeted progressive fatigue driving warning actions in the non-driving state in place, and then the driver confirms and agrees to officially start the fatigue driving monitoring and warning method. In this method, it is necessary to remind the driver at the beginning to perform a startup confirmation through the display module 42 for human-machine interaction. This confirmation step also includes the meaning of manually detecting whether the fatigue driving monitoring and warning method can operate normally. At the same time, during the human-machine interaction process, various parameters of the fatigue driving monitoring and warning can be set, such as amplitude, frequency, interval time, preset maximum time, etc., and the execution feedback is performed, so that the manual confirmation can include such content. In addition, it should be noted that the fatigue driving monitoring and warning method cannot be started without the driver's confirmation. Therefore, the display module 42 is set to flash at a certain frequency to attract the driver's attention, and an output corresponding confirmation signal to the CAN bus is reserved. Therefore, when conditions permit, various vehicles can play a voice or a prompt tone to remind the startup of this action according to this signal. Of course, during the human-machine interaction process, the driver can also turn off the fatigue driving monitoring and warning method at any time to make it enter the sleep state. Embodiment 4:

[0098] As Figure 4As shown, the fatigue judgment in this embodiment is based on the existing vehicle-mounted fatigue monitoring system on the car received through the CAN bus communication as the main judgment data, that is, when the existing vehicle-mounted fatigue monitoring system on the car determines that the current driver is in a fatigue driving state, the controller 200 on the car will receive the fatigue judgment signal of the existing vehicle-mounted fatigue monitoring system, and this signal will be forwarded by the controller 200 on the car or directly sent by the vehicle-mounted fatigue monitoring system to the fatigue warning integrated assembly 40 through the CAN bus. In this embodiment, the fatigue warning integrated assembly 40 only needs to determine whether the received predetermined format data is a fatigue judgment signal. If so, the current driver is in a fatigue driving state, and the warning part can be activated immediately to execute the corresponding steps. If not, the current driver is not in a fatigue driving state, and the corresponding warning release action can be executed. Obviously, due to the existence of the existing vehicle-mounted fatigue monitoring system on the car, the function of fatigue judgment in this embodiment is only to receive the signal of the system, and use the signal as the main or only judgment standard and perform subsequent actions.

[0099] If the vehicle is not equipped with an on-board fatigue monitoring system, the input sensor group 10 in this embodiment can be used as an input device for fatigue driving status detection to perform a certain degree of detection. However, it should be noted that in this embodiment, the input sensor group 10 in this embodiment can be used as an input device for fatigue driving status detection. The effect cannot replace the existing general on-board fatigue monitoring system, and can only be used as an imperfect alternative solution to the existing general on-board fatigue monitoring system. The judgment logic of this part is that if the maximum fluctuation value, fluctuation mean value and other data of the input signal of the current input sensor group 10 exceed the threshold within a certain period of time, it can be determined that the current driver has the possibility of fatigue driving.

[0100] It should be noted that the preferred embodiments of the present invention are given in the specification and drawings of the present invention. However, the present invention can be implemented in many different forms and is not limited to the embodiments described in this specification. These embodiments are not intended to be additional limitations on the content of the present invention. The purpose of providing these embodiments is to make the understanding of the disclosure of the present invention more thorough and comprehensive. In addition, the above-mentioned technical features continue to be combined with each other to form various embodiments not listed above, which are all considered to be within the scope of the present invention; further, for ordinary technicians in this field, they can be improved or transformed according to the above description, and all these improvements and transformations should belong to the scope of protection of the claims attached to the present invention.

Claims

1. A fatigue driving monitoring and early warning method, characterized in that: Performing hardware configuration on a vehicle, at least configuring an input sensor group, a reminder device group, and a fatigue warning integrated assembly, wherein the fatigue warning integrated assembly is connected to a controller on the vehicle through at least one communication method, and the controller is connected to an actuator, including the following steps: S1, the warning controller in the fatigue warning integrated assembly receives the input signal of the input sensor group, and performs fatigue driving warning judgment according to the input signal of the input sensor group and the feedback signal of the controller on the vehicle; S2, the warning controller outputs a fatigue driving warning signal to drive the reminder device group, and uses a composite reminder method to provide a targeted and progressive fatigue driving warning to the driver. At the same time, the warning controller provides a fatigue driving warning signal to a controller on the vehicle; The method of using a composite reminder method to provide a targeted and progressive fatigue driving warning to the driver includes the following steps: S21, recording the standard pressure distribution of the driver's hands placed on the steering wheel in a non-fatigue state through the input sensor group during the initial calibration phase; S22, the early warning controller receives the data from the input sensor group and analyzes to determine the area where pressure is applied and the magnitude of the pressure applied in the area; S23, comparing the pre-recorded standard pressure distribution to determine the specific area where the current driver's palm is located; S24: establishing a mapping relationship between the input sensor group and the reminder device group, and determining a corresponding linear resonance execution module in the reminder device group according to a determination result of the area where the palm is located; S25: When it is determined that the specific area where the palm of the current driver is located is area A, based on the specific area where the palm is located, dynamically select and activate the linear resonance execution module in area A M A And the linear resonance execution modules on both sides M A-1 , Linear Resonance Execution Module M A+1 , and set the linear resonance execution module M A The priority is higher than the linear resonance execution module M A-1 and Linear Resonance Actuator M A+1 ; S26: Adjust the linear resonant actuator module based on predefined rules or learned driver preferences M A And the linear resonance execution modules on both sides M A-1 , Linear Resonance Execution Module M A+1 Vibration intensity and frequency; Adjusting the Linear Resonance Execution Module M A And the linear resonance execution modules on both sides M A-1 , Linear Resonance Execution Module M A+1 The method of determining the vibration intensity and frequency comprises the following steps: S261, firstly, setting a reference intensity and frequency when the driver is awake for each linear resonance execution module in the reminder device group, and adjusting the increment of the reference value according to the warning level; S262, the early warning controller controls the linear resonance execution module M A Provide feedback reminders at a baseline intensity and frequency; S263, continuously monitoring the driver's status data through the fatigue warning integrated assembly, and transmitting the data to the warning controller, which analyzes the driver's status changes based on the received data; S264: when it is determined that the driver's state has changed to awake, the corresponding linear resonance execution module is made to maintain the reference intensity and frequency for a specified time; when it is determined that the driver's state has not changed, the linear resonance execution module is further activated. M A-1 and Linear Resonance Actuator M A+1 , and increase the linear resonance execution module M A Provide feedback reminders based on the increment of the baseline value; S265, when the driver's state continues to not change, the current state is determined to be severe fatigue, and all linear resonance execution modules in the reminder device group are activated to provide comprehensive feedback reminders; S266, dynamically adjust the proportional factor to provide more personalized warning prompts based on the driver's response to different vibration intensities and frequencies; S3. The controller and actuator on the vehicle perform further fatigue driving warning according to the settings.

2. A fatigue driving monitoring and early warning method according to claim 1, characterized in that: In step S23, the formula for determining the specific area where the current driver's palm is located is as follows: ， in, is the score of the jth palm position, n is the number of input sensors, is the pressure value measured by the i-th input sensor, is a preset threshold for distinguishing whether a palm is in contact with the input sensor, is the importance weight of the area corresponding to the i-th input sensor, is the correlation coefficient between the i-th input sensor and the j-th palm position.

3. A fatigue driving monitoring and early warning method according to claim 1, characterized in that: In step S26, the linear resonance execution module is adjusted M A And the linear resonance execution modules on both sides M A-1 , Linear Resonance Execution Module M A+1 The formula for vibration intensity and frequency is as follows: ， ， in, is the baseline strength of the linear resonance execution module MA, is the reference frequency of the linear resonance execution module MA, is the default strength reference value of the system, is the default frequency reference value of the system, and are increments relative to the baseline value. Linear Resonance Execution Module M A-1 The strength of Linear Resonance Execution Module M A+1 The frequency, is the proportionality factor of the vibration intensity, is the proportional factor of the vibration frequency.

4. A fatigue driving monitoring and early warning method according to claim 1, characterized in that: In step S3, the controller and actuator on the vehicle perform further fatigue driving warning according to the settings, including targeted adjustment of the in-vehicle environment settings to promote the driver's sobriety.

5. A fatigue driving monitoring and early warning method according to claim 4, characterized in that: The method for adjusting the in-vehicle environment settings comprises the following steps: Step 31: Based on the on-board fatigue monitoring system detecting that there are still potential signs of fatigue driving, the current air conditioning mode information in the vehicle is obtained through the controller on the vehicle; Step 32: When the air-conditioning mode is in the internal circulation state, the circulation mode is changed to the external circulation state; when the air-conditioning mode is in the external circulation state, the vehicle windows are controlled to be opened, and the steering wheel heating is controlled to be closed.

6. A fatigue driving monitoring and early warning method according to claim 5, characterized in that: It also includes personalized early warning optimization steps based on historical data analysis, as follows: Step 33: The fatigue warning integrated assembly collects and stores the driver's behavior data during each driving process; Step 34: Analyze the historical data using a machine learning algorithm to identify each driver's unique driving habits and fatigue tendency patterns; Step 35: Based on the identified patterns, customized warning thresholds and reminder strategies are provided for each driver to improve the effectiveness and relevance of warnings.

7. A fatigue driving monitoring and early warning system, used in the fatigue driving monitoring and early warning method as claimed in claim 1, connected to a controller on a car through a communication bus, characterized in that: The system comprises an input sensor group for detecting the current pressure on the steering wheel, a first reminder device group arranged on the inner layer of the rim of the steering wheel, a second reminder device group and a fatigue warning integrated assembly arranged at the decorative cover bracket, the fatigue warning integrated assembly comprises a communication device for connecting to a communication bus, a display module for human-computer interaction, and a warning controller for fatigue driving warning monitoring, the warning controller receives an input signal from the input sensor group to make a fatigue driving warning judgment, when it is judged as a fatigue driving warning, the warning controller outputs a fatigue driving warning signal to drive the first reminder device group and the second reminder device group to operate, and provides a targeted and progressive fatigue driving warning to the driver, the warning controller is connected to the CAN bus through the communication device and provides a fatigue driving warning signal to the controller and actuator on the vehicle, and the controller on the vehicle performs further fatigue driving warning according to the setting.

8. A fatigue driving monitoring and early warning system according to claim 7, characterized in that: The input sensor group and the first reminder device group are installed in an array on the rim of the steering wheel, the second reminder device group is embedded in the rim of the steering wheel, the communication equipment and the warning controller are both installed on the side of the decorative cover bracket close to the rim of the steering wheel, the display module is fixedly installed on the side of the decorative cover bracket away from the communication equipment and the warning controller, and the decorative cover bracket is installed with a decorative cover and a display screen cover for protecting the display module.

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