Fatigue driving monitoring and early warning method and system

Abstract

The invention discloses a fatigue driving monitoring and early warning method and system, hardware configuration is carried out on an automobile, at least an input sensor group, a reminding device group and a fatigue early warning integrated assembly are configured, and the fatigue early warning integrated assembly is connected with a controller on the automobile through at least one communication mode. Comprising the following steps that S1, an early warning controller in a fatigue early warning integrated assembly receives an input signal input into a sensor group, and fatigue driving early warning judgment is conducted according to the input signal input into the sensor group and a feedback signal of a controller on an automobile; s2, the early warning controller outputs a fatigue driving early warning signal to drive a reminding device set, and targeted progressive fatigue driving early warning is conducted on a driver in a composite reminding mode; through the implementation of the method, intervention measures are enriched, the accuracy and reliability of fatigue early warning are improved, and the pertinence and progression are remarkably improved.

Description

Technical Field

[0001] The present invention relates to the field of automobile safety technology, and in particular to a fatigue driving monitoring and early warning method and system. Background Art

[0002] With the rapid development of the automobile industry and technological progress, traffic accidents caused by driver fatigue are common. Traditional vehicle fatigue monitoring systems mainly rely on visual detection, physiological signal monitoring and other methods to determine whether the driver is in a state of fatigue. When it is found that the driver may be fatigued, the existing intervention measures are relatively simple, usually limited to sound or light alarms, and the reminder methods are relatively simple. The early warning reminder method is lacking in pertinence and gradualness.

[0003] In summary, a fatigue driving monitoring and early warning method and system are needed to address the deficiencies in the prior art. Summary of the invention

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

[0005] To achieve the above object, the present invention provides the following technical solution: a fatigue driving monitoring and early warning method, which performs hardware configuration on a vehicle, is configured with at least an input sensor group, a reminder device group, and a fatigue early warning integrated assembly, the fatigue early 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, comprising 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; S3. The controller and actuator on the car perform further fatigue driving warning according to the settings. The warning controller outputs the fatigue driving warning signal to drive the reminder device group to perform a composite reminder to provide the driver with a targeted and progressive fatigue driving warning. In addition, combined 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 targeting and progression.

[0006] Furthermore, in step S2, 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.

[0007] Furthermore, 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 pressure 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.

[0008] Furthermore, 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 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. Based on the driver's response to different vibration intensities and frequencies, the proportional factor is dynamically adjusted to provide more personalized warning prompts.

[0009] Furthermore, 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: ; ;

[0010] in, Linear Resonance Execution Module M AThe baseline strength, Linear Resonance Execution Module M A The base frequency, is the default strength reference value of the system, is the default frequency reference value of the system, and They are all increments relative to the reference value. Linear Resonance Execution Module M A-1 The strength of Linear Resonance Execution Module M A+1 The frequency, is the proportional factor of the vibration intensity, is the proportional factor of the vibration frequency.

[0011] Furthermore, 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.

[0012] Furthermore, 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.

[0013] Furthermore, the method for targeted adjustment of the in-vehicle environment settings also includes a personalized warning optimization step based on historical data analysis, which is 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.

[0014] On the other hand, a fatigue driving monitoring and warning system uses a fatigue driving monitoring and warning method as described above, is connected to a controller on a car through a communication bus, includes 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 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 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 car, and the controller on the car performs further fatigue driving warnings according to the settings.

[0015] Furthermore, 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.

[0016] Substantial effects of the present invention: 1. In the present invention, a warning controller is set to output a fatigue driving warning signal to drive a reminder device group to perform a composite reminder method to provide a targeted and progressive fatigue driving warning to the driver, and combined 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 targeting and progression.

[0017] 2. In the present invention, by setting up the first reminder device group and the second reminder device group, the reminder intensity is gradually enhanced to ensure that the driver can pay attention to the warning information in time, while avoiding excessive stimulation that affects driving safety.

[0018] 3. In the present invention, by targeted adjustment of the in-vehicle environment settings, the air-conditioning mode, window opening and closing degree, steering wheel heating and other functions are automatically adjusted, the changes in the driving environment are increased, the driver's perception of environmental changes is promoted, and a driving environment that is more conducive to staying awake is created, thereby achieving a compound reminder effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0020] Figure 1 It is a schematic diagram of the process of the present invention.

[0021] Figure 2 It is a system principle block diagram of the present invention.

[0022] Figure 3 It is an exploded schematic diagram of the steering wheel structure of the present invention.

[0023] Figure 4 This is a system principle block diagram of embodiment 4 of the present invention.

[0024] In the figure: 100-steering wheel, 101-decoration cover bracket, 1011-decoration cover; 10-input sensor group, 20-first reminder device group, 30-second reminder device group, 40-fatigue warning integrated assembly, 41-communication equipment, 42-display module, 421-display cover, 43-warning controller; 200-controller; 300-actuator. DETAILED DESCRIPTION

[0025] In order to facilitate the understanding of the present invention, the present invention is described in more detail below in conjunction with the accompanying 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 centered 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 centered elements therebetween. The terms "vertical", "horizontal", "left", "right" and similar expressions used in this specification are for illustrative purposes only.

[0026] Unless otherwise defined, all technical and scientific terms used in this specification have the same meaning as those commonly understood by those skilled in the art of the present invention. The terms used in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The term "and / or" used in this specification includes any and all combinations of one or more of the related listed items. Embodiment 1:

[0027] like Figure 1As shown, this embodiment provides a fatigue driving monitoring and warning method, which performs hardware configuration on a car, and is configured with at least an input sensor group, a reminder device group, and a fatigue warning integrated assembly, the fatigue warning integrated assembly is connected to a controller on the car 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; S3. The controller and actuator on the vehicle perform further fatigue driving warning according to the settings.

[0028] like Figure 2 , Figure 3 As shown, this embodiment 1 also provides a fatigue driving monitoring and warning system, which uses the fatigue driving monitoring and warning method as described above, is connected to the controller 200 on the car through a communication bus, and includes an input sensor group 10 for detecting the current pressure on the 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 integrated assembly 40 configured at the decorative cover bracket 101. The fatigue warning integrated assembly 40 includes a communication device 41 for connecting to the communication bus, a display module 42 for human-computer interaction, and a display module 43 for fatigue driving. The warning controller 43 is used for 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 operate, and provides 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 car. The controller 200 on the car performs further fatigue driving warning according to the settings.

[0029] As an embodiment, the input sensor group 10 and the first reminder device group 20 are installed in an array 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 installed on the side of the decorative cover bracket 101 close to the rim of the steering wheel 100, the display module 42 is fixedly installed on the side of the decorative cover bracket 101 away from the communication device and the warning controller, and the decorative cover bracket 101 is installed with a decorative cover 1011 and a display screen cover 421 for protecting the display module 42.

[0030] As an implementation mode, the input sensor group 10 is a sensor array composed of a plurality of thin film pressure sensors, the first reminder device group 20 is a motor array composed of a plurality of linear resonance execution modules, the number of thin film pressure sensors and linear resonance execution modules is the same, 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:

[0031] like Figure 1 As shown, this embodiment provides a fatigue driving monitoring and warning method, which performs hardware configuration on a car, and is configured with at least an input sensor group, a reminder device group, and a fatigue warning integrated assembly, the fatigue warning integrated assembly is connected to a controller on the car 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; As an implementation mode, in step S2, the method for providing a targeted and progressive fatigue driving warning to the driver by using a composite reminder method 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 and whether there is an abnormality; As an implementation manner, 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, This reflects the importance of this sensor in determining the position of a specific palm; As an implementation mode, in step S23, when it is determined that the palm of the current driver is not on the steering wheel, it is determined that there is an abnormality in the state of the current driver.

[0032] 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.

[0033] As an implementation method, 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 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. Based on the driver's response to different vibration intensities and frequencies, the proportional factor is dynamically adjusted to provide more personalized warning prompts.

[0034] As an implementation method, 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: ; ;

[0035] in, Linear Resonance Execution Module M A The baseline strength, Linear Resonance Execution Module M A The base frequency, is the default strength reference value of the system, is the default frequency reference value of the system, and They are all increments relative to the baseline value and can be adjusted according to different warning levels. Linear Resonance Execution Module M A-1 The strength of Linear Resonance Execution Module M A+1 The frequency, is the proportional factor of the vibration intensity, is the proportional factor of the vibration frequency ( and For adjusting the linear resonant actuator module M A-1 and Linear Resonance Actuator M A+1 Relative to the linear resonant actuator M A intensity and frequency).

[0036] S3. The controller and actuator on the vehicle perform further fatigue driving warning according to the settings.

[0037] As an implementation mode, in step S3, the controller and the 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.

[0038] As an implementation method, the method for specifically adjusting the in-vehicle environment settings includes 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.

[0039] As an implementation method, targeted adjustments are made to the in-vehicle environment settings to increase changes in the driving environment and promote the driver's perception of environmental changes, thereby achieving a composite reminder effect.

[0040] As an implementation method, the method for targeted adjustment of in-vehicle environment settings also includes a personalized warning optimization step based on historical data analysis, which is as follows: Step 33: The fatigue warning integrated assembly collects and stores the driver's behavior data during each driving process, including but not limited to steering wheel operation mode, reaction time, physiological parameters, and responses to different warning levels; 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.

[0041] On the other hand, Figure 2 , Figure 3As shown, this embodiment provides a fatigue driving monitoring and warning system, which uses the fatigue driving monitoring and warning method as described above, is connected to the controller 200 on the car through a communication bus, includes an input sensor group 10 for detecting the current pressure on the steering wheel 100, a first reminder device group 20 and a second reminder device group 30 arranged on the inner layer of the wheel rim of the steering wheel 100, and a fatigue warning integrated assembly 40 arranged at the decorative cover bracket 101, the fatigue warning integrated assembly 40 includes a communication device 41 for connecting to the communication bus, a display module 42 for human-computer interaction, and a warning controller 43 for 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, and performs targeted and progressive fatigue driving warning for 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 car, and the controller 200 on the car performs further fatigue driving warning according to the setting.

[0042] As an embodiment, the input sensor group 10 and the first reminder device group 20 are installed in an array 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 installed on the side of the decorative cover bracket 101 close to the rim of the steering wheel 100, the display module 42 is fixedly installed on the side of the decorative cover bracket 101 away from the communication device and the warning controller, and the decorative cover bracket 101 is installed with a decorative cover 1011 and a display screen cover 421 for protecting the display module 42.

[0043] As an implementation, the input sensor group 10 is a sensor array composed of a plurality of capacitive pressure sensors, the first reminder device group 20 is a motor array composed of a plurality of rotating eccentric mass motors, 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 3:

[0044] This embodiment is basically the same as the second embodiment, except that, in this embodiment, in order to prevent the inadaptability caused by starting the fatigue driving monitoring and early warning method, the initial operation and start-up of the fatigue driving monitoring and early warning method of this embodiment need to be confirmed by the user. At the same time, the user confirmation effect of this embodiment needs to be reactivated as the warning part of the fatigue driving monitoring and early warning method is extended. That is, in the case of long-term failure to start the warning, even if the initial confirmation has been passed, the fatigue driving monitoring and early warning method of this embodiment still requires the driver to perform a start-up confirmation. At the same time, if the controller 200 on the car determines that the current driver is a person who drives the car for the first time, the fatigue driving monitoring and early warning method of this embodiment also needs to be confirmed. In this embodiment, the judgment of whether the fatigue driving monitoring and early warning method is the first operation and the warning part needs to be reactivated for subsequent confirmation, which is directly obtained by the fatigue early warning integrated assembly 40 according to the number of operations and the inactivation time of the fatigue driving monitoring and early warning method, and the signal for judging that the current driver is a person who drives the car for the first time is sent by the controller 200 on the car with this function. The signal is transmitted to the fatigue early warning integrated assembly 40 via the CAN bus and then executed. When the application requires the driver to confirm the start of the fatigue driving monitoring and early warning method, the driver confirms the start and informs through the display module 42 (touch screen) for human-computer interaction. After the driver confirms, the car performs one to two complete targeted progressive fatigue driving warning actions in the non-driving state, and then the driver confirms and agrees to formally start the fatigue driving monitoring and early warning method. In this method, it is necessary to remind the driver to start the confirmation through the display module 42 for human-computer interaction at the beginning. The confirmation step also includes the meaning of manually detecting whether the fatigue driving monitoring and early warning method can operate normally. At the same time, in the process of human-computer interaction, various parameters of the fatigue driving monitoring and early warning can be set, such as amplitude, frequency, interval time, preset maximum time, etc., and this is executed and fed back, so that the manual confirmation can include such content. In addition, it should be noted that the fatigue driving monitoring and early warning method cannot be started if the driver does not confirm. Therefore, the display module 42 is set to flash at a certain frequency to attract the driver's attention, and the corresponding confirmation signal is reserved for outputting to the CAN bus. Therefore, when conditions permit, various cars can play voice or prompt sounds according to the signal to remind the start of the action. Of course, during the human-computer interaction process, the driver can also turn off the fatigue driving monitoring and warning method at any time and put it into a dormant state. Embodiment 4:

[0045] like 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.

[0046] 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.

[0047] 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; 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 S2, 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.

3. A fatigue driving monitoring and early warning method according to claim 2, 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.

4. A fatigue driving monitoring and early warning method according to claim 3, 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 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. Based on the driver's response to different vibration intensities and frequencies, the proportional factor is dynamically adjusted to provide more personalized warning prompts.

5. A fatigue driving monitoring and early warning method according to claim 4, 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, Linear Resonance Execution Module M A The baseline strength, Linear Resonance Execution Module M A The base frequency, 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.

6. A fatigue driving monitoring and early warning method according to claim 5, 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.

7. A fatigue driving monitoring and early warning method according to claim 6, 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.

8. A fatigue driving monitoring and early warning method according to claim 7, 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.

9. 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.

10. A fatigue driving monitoring and early warning system according to claim 9, 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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