An assisted driving system

Abstract

An assisted driving system of the present disclosure comprises a wearable device, a vehicle information entertainment module and an assisted driving controller, the wearable device is used to collect current sleep data of a user, the wearable device comprises historical sleep data of the user, the wearable device evaluates the current sleep data according to the historical sleep data of the user and outputs a driving state parameter, the driving state parameter comprises a fatigue driving state and a normal driving state; the vehicle information entertainment module is in communication connection with the wearable device to receive the driving state parameter; the assisted driving controller receives the driving state parameter through the vehicle information entertainment module and adjusts an assisted parameter of the assisted driving system based on the driving state parameter, the assisted parameter comprises a standard and a sensitivity, when the driving state parameter is the fatigue driving state, the assisted driving controller adjusts the assisted parameter to the sensitivity based on the fatigue driving parameter.

Description

Technical Field

[0001] This invention relates to the field of automotive driver assistance systems, and more specifically, to a driver assistance system. Background Technology

[0002] Many vehicle users experience high work pressure, long hours, poor sleep, and irregular schedules. In addition, an increasing number of people suffer from hypertension, diabetes, cardiovascular and cerebrovascular diseases, and are in a state of sub-health for a long time. If they experience fatigue, sudden blood sugar imbalance, or cardiovascular and cerebrovascular diseases while driving, it not only poses a driving safety hazard, but also means they cannot receive timely medical treatment. Summary of the Invention

[0003] To address at least one aspect of the aforementioned problems, the present invention provides a driver assistance system, comprising: a wearable device for collecting a user's current sleep data, the wearable device including the user's historical sleep data, the wearable device evaluating the current sleep data based on the user's historical sleep data and outputting driving state parameters, the driving state parameters including fatigue driving state and normal driving state; an in-vehicle infotainment module communicatively connected to the wearable device to receive the driver state parameters; and a driver assistance controller, the driver assistance controller receiving the driving state parameters through the in-vehicle infotainment module and adjusting the assistance parameters of the driver assistance system based on the driving state parameters, the assistance parameters including standard and sensitive, wherein when the driving state parameter is fatigue driving state, the driver assistance controller adjusts the assistance parameter to sensitive based on the fatigue driving parameter.

[0004] Preferably, the wearable device generates standard sleep quality based on the user's historical sleep data. The standard sleep quality includes standard sleep duration and standard deep sleep duration. The sleep data includes current sleep duration and current deep sleep duration. When the current sleep duration is less than the standard sleep duration and the current deep sleep duration is less than the standard deep sleep duration, the wearable device outputs a fatigue driving state.

[0005] Preferably, the wearable device further includes a duration coefficient and a quality coefficient, wherein the standard sleep duration is equal to the product of the average historical sleep duration in the user's historical sleep data and the duration coefficient, and the standard quality coefficient is equal to the product of the average historical deep sleep duration in the user's historical sleep data and the quality coefficient.

[0006] Preferably, the in-vehicle infotainment module further includes a fatigue driving warning unit, which includes a preset driving threshold. The fatigue driving warning unit receives driving time through the in-vehicle controller, and outputs a fatigue driving warning when the driving time is greater than or equal to the preset driving threshold. The in-vehicle infotainment module shortens the preset driving threshold in response to the received fatigue driving state.

[0007] Preferably, when the driving state parameter is a fatigued driving state, the driver assistance controller takes over the vehicle controller based on the fatigued driving state and controls the vehicle movement based on a preset route.

[0008] Preferably, the wearable device further includes a Bluetooth module, which connects to a health data collector. The wearable device acquires real-time health data through the health data collector. The wearable device also includes a user health threshold range. When the real-time health data is greater than or less than the user health threshold range, the wearable device outputs a voice wake-up command. The voice wake-up command is used to control the in-vehicle infotainment module to make an emergency call.

[0009] Preferably, when the real-time health data is greater than or less than the user's health threshold range, the wearable device outputs abnormal health information. The driver assistance controller receives the abnormal health information through the in-vehicle infotainment module. Based on the abnormal health information, the driver assistance controller takes over the in-vehicle controller and controls the vehicle's movement based on the planned route. The starting point of the planned route is the vehicle's current location, and the ending point is the nearest hospital to the vehicle.

[0010] Preferably, the in-vehicle infotainment module dials a preset contact number based on the abnormal health information.

[0011] Preferably, the in-vehicle infotainment module obtains the vehicle's current location information and the nearest hospital information based on the abnormal health information, and sends the vehicle's current location information, vehicle license plate, and user health data to the hospital.

[0012] Preferably, the real-time health data also includes blood glucose, blood pressure, heart rate, and blood oxygen saturation.

[0013] The driver assistance system of this invention has the following beneficial effects: First, by connecting to more body monitoring devices (such as a continuous glucose monitoring device) through a wearable device, more accurate body data is collected; second, the wearable device transmits data to the in-vehicle infotainment module via Wi-Fi, and the in-vehicle infotainment module automatically adjusts the driver assistance standards according to the driver's physical condition, improving safe driving; finally, by monitoring the driver's physical condition in real time, when hypoglycemia, cardiovascular and cerebrovascular diseases occur, the system provides voice prompts to the driver and automatically dials E-call for rescue, contacting emergency contacts. At the same time, the vehicle network backend provides accurate vehicle location data, saving time for patient rescue. Attached Figure Description

[0014] To better understand the above and other objects, features, advantages, and functions of the present invention, reference can be made to the embodiments shown in the accompanying drawings. The same reference numerals in the drawings refer to the same parts. Those skilled in the art should understand that the drawings are intended to schematically illustrate preferred embodiments of the invention and do not limit the scope of the invention in any way; the parts in the drawings are not drawn to scale.

[0015] Figure 1 A structural block diagram of an assisted driving system according to an embodiment of the present invention is shown. Detailed Implementation

[0016] The exemplary embodiments of this disclosure are described below with reference to the accompanying drawings, including various details of the embodiments to aid understanding, and should be considered merely exemplary. Therefore, those skilled in the art will recognize that various changes and modifications can be made to the embodiments described herein without departing from the scope and spirit of this disclosure. Similarly, for clarity and brevity, descriptions of well-known functions and structures are omitted in the following description.

[0017] The term "comprising" and its variations as used herein signify open inclusion, i.e., "including but not limited to". Unless otherwise stated, the term "or" means "and / or". The term "based on" means "at least partially based on". The terms "one example embodiment" and "one embodiment" mean "at least one example embodiment". The term "another embodiment" means "at least one additional embodiment". The terms "first", "second", etc., may refer to different or the same objects. Other explicit and implicit definitions may also be included below.

[0018] To at least partially address one or more of the aforementioned problems and other potential issues, embodiments of this disclosure propose a driver assistance system, comprising: a wearable device, an in-vehicle infotainment module, and a driver assistance controller. The wearable device collects current sleep data of a user, and includes the user's historical sleep data. The wearable device evaluates the current sleep data based on the user's historical sleep data and outputs driving state parameters, including fatigue driving state and normal driving state. The in-vehicle infotainment module is communicatively connected to the wearable device to receive the driving state parameters. The driver assistance controller receives the driving state parameters through the in-vehicle infotainment module and adjusts the assistance parameters of the driver assistance system based on the driving state parameters. The assistance parameters include standard and sensitive parameters. When the driving state parameter indicates fatigue driving state, the driver assistance controller adjusts the assistance parameter to sensitive based on the fatigue driving parameter.

[0019] Specifically, the wearable device is an intelligent data collection device worn by the vehicle user. The wearable device includes a communication unit, a data storage unit, and a data processing unit. The wearable device connects to a health data collector via the communication unit, which is either a user health data monitoring device or a user health data monitoring device. The wearable device also connects to the in-vehicle infotainment module via the communication unit.

[0020] The wearable device acquires current sleep data by connecting to a sleep data acquisition device. Alternatively, in another embodiment, the wearable device further includes a sleep data acquisition module that employs existing sleep data acquisition technology. The user collects current sleep data by wearing the device. In some embodiments, the current sleep data is the user's sleep data from the night before driving, for example, sleep data between 8 PM the previous night and 8 AM the current day; or, the current sleep data is sleep data within a preset time period (e.g., ten hours, twelve hours, etc.) before the user drives.

[0021] User's historical sleep data is stored in the data storage unit of the wearable device. In response to received current sleep data, the data processing unit evaluates the current sleep data based on the user's historical sleep data. In some embodiments, the wearable device generates standard sleep quality based on the user's historical sleep data. Standard sleep quality includes standard sleep duration and standard deep sleep duration. The sleep data includes current sleep duration and current deep sleep duration. When the current sleep duration is less than the standard sleep duration and the current deep sleep duration is less than the standard deep sleep duration, the wearable device outputs a fatigue driving state. When the current sleep duration is less than the standard sleep duration and the current deep sleep duration is greater than or equal to the standard deep sleep duration, or when the current sleep duration is less than the standard sleep duration, the wearable device outputs a normal driving state. Alternatively, in another embodiment, the standard sleep quality is the average deep sleep duration in the user's historical sleep data. The current sleep data includes the current deep sleep duration. When the current deep sleep duration is less than the standard sleep quality, the wearable device outputs a fatigue driving state; when the current deep sleep duration is greater than or equal to the standard sleep quality, the wearable device outputs a normal driving state.

[0022] Standard sleep duration is the average sleep duration from the user's historical sleep data, and standard deep sleep duration is equal to the average deep sleep duration from the user's historical sleep data. In some embodiments, the wearable device also includes a duration coefficient and a quality coefficient. The standard sleep duration is equal to the product of the average historical sleep duration from the user's historical sleep data and the duration coefficient, and the standard quality coefficient is equal to the product of the historical deep sleep duration from the user's historical sleep data and the quality coefficient. The duration coefficient and quality coefficient are preset parameters set according to the user's actual sleep conditions; for example, both the duration coefficient and quality coefficient are values ​​greater than or equal to 0.8 and less than or equal to 1.2. Evaluating current sleep data using the user's historical sleep data allows for differentiated evaluation needs among different users, increasing the accuracy of the evaluation results.

[0023] The wearable device connects to the vehicle's hotspot via Wi-Fi and transmits the monitored user health data (including current sleep data) to the vehicle's infotainment module. The vehicle's driver assistance controller then performs calculations based on the user's health data.

[0024] The driver assistance controller receives driving status parameters through the in-vehicle infotainment module and adjusts the auxiliary parameters of the driver assistance system based on the driving status parameters. The auxiliary parameters include standard and sensitive parameters. When the driving status parameters indicate fatigue driving, the driver assistance controller adjusts the auxiliary parameters to sensitive based on the fatigue driving parameters.

[0025] The in-vehicle infotainment module communicates via CAN bus to send driving status parameters to the driver assistance controller. These parameters are used to calibrate the response speed of the driver assistance system. For example, driver assistance systems include pre-collision systems, Predictive Cruise Control (PACC), Lane Keeping Assist (LAS), and other FAS (Driver Assist System) technologies. When the assist parameters are in a sensitive state, the response speed is faster than when the assist parameters are in a standard state. By modifying the driver assistance parameters based on the driving status parameters, the system addresses the issue of insufficient attention when the user is sleep-deprived, achieving intelligent adjustment based on the user's health status.

[0026] In some embodiments, the in-vehicle infotainment module further includes a fatigue driving warning unit, which includes a preset driving threshold. The fatigue driving warning unit receives driving time through the vehicle controller and outputs a fatigue driving warning when the driving time is greater than or equal to the preset driving threshold. The in-vehicle infotainment module shortens the preset driving threshold in response to the received fatigue driving state.

[0027] Specifically, the preset driving threshold is used to determine the duration of user fatigue driving. For example, if the preset driving threshold is 2 hours, the in-vehicle infotainment module obtains the vehicle's power-on time through the vehicle controller. When the vehicle's power-on time reaches 2 hours, the fatigue driving warning unit outputs a fatigue driving warning. When the in-vehicle infotainment module receives a fatigue driving status through the wearable device, it modifies the preset driving threshold, for example, reducing the frequency from once every 2 hours to once every half hour.

[0028] In some embodiments, when the driving state parameter is a fatigued driving state, the driver assistance controller takes over the vehicle controller based on the fatigued driving state and controls the vehicle movement based on a preset route.

[0029] Specifically, when the driver assistance controller receives driving status parameters indicating fatigue driving from the in-vehicle infotainment module, it takes over the vehicle controller to drive the vehicle and follows a preset route to safely transport the driver to their destination. The preset route is a navigation route obtained by the user based on their current location and destination.

[0030] In some embodiments, the wearable device further includes a Bluetooth module, which connects to a health data collector. The wearable device acquires real-time health data through the health data collector. The wearable device also includes a user health threshold range. When the real-time health data is greater than or less than the user's health threshold range, the wearable device outputs a voice wake-up command, which is used to control the in-vehicle infotainment module to dial an emergency call. Specifically, the health data collector includes a smartwatch, a subcutaneous continuous glucose monitor, a blood pressure monitor, etc. The wearable device connects to the health data collector via a Bluetooth module to obtain real-time health data. In some embodiments, the real-time health data also includes blood glucose, blood pressure, heart rate, and blood oxygen saturation. The wearable device acquires sleep duration and sleep quality by connecting to a smartwatch; it acquires dynamic blood glucose data by connecting to a subcutaneous continuous glucose monitor; and it monitors heart rate through a smartwatch or by connecting to a heart rate monitor to measure dynamic heart rate. The user health threshold range includes a blood glucose threshold range, a heart rate threshold range, and a blood pressure threshold range. The blood glucose threshold range includes a maximum and a minimum blood glucose value; the heart rate threshold range includes a maximum and a minimum heart rate; and the blood pressure threshold range includes a maximum and a minimum blood pressure value. When the real-time blood glucose is lower than the minimum blood glucose value, or the real-time heart rate is lower than the minimum heart rate value, or the real-time blood pressure is lower than the minimum blood pressure value, the wearable device outputs a voice wake-up command, and the in-vehicle infotainment module responds to the voice wake-up command to dial an emergency call.

[0031] In some embodiments, when real-time health data is greater than or less than the user's health threshold range, the wearable device outputs abnormal health information. The driver assistance controller receives this information through the in-vehicle infotainment module. Based on this information, the driver assistance controller takes over the in-vehicle controller and controls the vehicle's movement according to a planned route. The planned route starts at the vehicle's current location and ends at the nearest hospital. In some embodiments, the in-vehicle infotainment module dials a preset contact number based on the abnormal health information. In other embodiments, the in-vehicle infotainment module obtains the vehicle's current location information and the nearest hospital information based on the abnormal health information, and sends the vehicle's current location information, license plate number, and user health data to the hospital. For example, when the driver's physical indicators are abnormal, an E-call connection is established with the backend. The backend then sends the hospital's address to the in-vehicle infotainment system via OTA technology. The vehicle then automatically activates navigation and drives to the hospital along the designated route.

[0032] Specifically, the wearable device monitors various indicators of the human body through a health data collector, such as heart rate, blood oxygen saturation, blood sugar level, and sleep time. The wearable device connects to the in-vehicle infotainment module via Wi-Fi and transmits the monitored data to the in-vehicle infotainment module. The in-vehicle infotainment module calculates the data to determine whether the driver is fatigued or has suffered a sudden cardiovascular or cerebrovascular disease while driving. It also provides voice prompts to the driver to turn on navigation to the nearest hospital or to call E-call for rescue, while simultaneously calling emergency contacts.

[0033] For example, the device can acquire sleep data from a smartwatch, which can then calculate sleep duration and deep sleep duration. If a user's sleep duration is less than the standard sleep duration (e.g., 4 hours) and deep sleep duration is less than the standard deep sleep duration, and the user still needs to drive to work the next day, the device will send the sleep data to the in-vehicle infotainment module via Wi-Fi when the user gets in the car. The in-vehicle infotainment module will then determine whether the user is driving while fatigued based on the sleep data. If the driving status parameters indicate fatigued driving, the fatigue driving warning will be modified, reducing the frequency from once every 2 hours to once every half hour. Furthermore, the device will automatically modify the auxiliary parameters of the driver assistance system, such as upgrading the pre-collision system, PACC (predictive adaptive cruise control), and LAS (lane keeping assist) systems from standard to more sensitive settings, thereby ensuring the driver's safety.

[0034] The continuous glucose monitoring device uses a subcutaneous continuous glucose meter, which connects to the wearable device via Bluetooth and transmits dynamic blood glucose values. The wearable device then transmits the data to the in-vehicle infotainment module via Wi-Fi. For example, if the driver has diabetes, the blood glucose threshold range includes both the maximum and minimum blood glucose levels. When driving, the blood glucose monitoring device detects an increase in blood glucose and transmits this information to the in-vehicle infotainment module. The in-vehicle infotainment module determines that the driver's blood glucose is elevated based on the maximum blood glucose level and outputs health alerts, such as suggesting medication or insulin injections. When the in-vehicle infotainment module determines that the blood glucose level is below the minimum blood glucose level, it alerts the driver that their blood glucose has decreased and provides prompts such as whether to activate navigation to the nearest hospital, use E-call for roadside assistance, or contact emergency contacts to ensure timely assistance for the patient.

[0035] Cardiovascular and cerebrovascular diseases are common and frequently occurring illnesses. Tragically, there have been numerous cases of drivers dying in their vehicles due to sudden heart attacks, myocardial infarctions, or cerebral infarctions, without receiving timely assistance. Individuals with hypertension, hyperglycemia, and hyperlipidemia are at high risk for cardiovascular and cerebrovascular diseases. Wearing a device identifies high-risk individuals based on the driver's medical examination information. If the driver is identified as high-risk, the device provides voice prompts via two-way communication when their heart rate is too fast or their blood oxygen saturation is low, instructing them to activate navigation to the nearest hospital and to use E-call to contact emergency contacts. Simultaneously, the service platform provides precise vehicle location information, saving valuable time for patient rescue.

[0036] The various embodiments of this disclosure have been described above. These descriptions are exemplary and not exhaustive, nor are they limited to the disclosed embodiments. Many modifications and variations will be apparent to those skilled in the art without departing from the scope and spirit of the described embodiments. The terminology used herein is chosen to best explain the principles, practical application, or technical improvements to the embodiments in the market, or to enable others skilled in the art to understand this document.

Claims

1. A driver assistance system, characterized in that, include: A wearable device is used to collect the user's current sleep data, the wearable device includes the user's historical sleep data, the wearable device evaluates the current sleep data based on the user's historical sleep data and outputs driving status parameters, the driving status parameters include fatigue driving status and normal driving status; An in-vehicle infotainment module, which is communicatively connected to the wearable device to receive the driving status parameters; The driver assistance controller receives the driving state parameters through the in-vehicle infotainment module and adjusts the assistance parameters of the driver assistance system based on the driving state parameters. The assistance parameters include standard and sensitive parameters. When the driving state parameters indicate a fatigued driving state, the driver assistance controller adjusts the assistance parameters to sensitive based on the fatigued driving parameters.

2. The system according to claim 1, characterized in that, The wearable device generates standard sleep quality based on the user's historical sleep data. The standard sleep quality includes standard sleep duration and standard deep sleep duration. The sleep data includes current sleep duration and current deep sleep duration. When the current sleep duration is less than the standard sleep duration and the current deep sleep duration is less than the standard deep sleep duration, the wearable device outputs a fatigue driving state.

3. The system according to claim 2, characterized in that, The wearable device also includes a duration coefficient and a quality coefficient. The standard sleep duration is equal to the product of the average historical sleep duration in the user's historical sleep data and the duration coefficient. The standard quality coefficient is equal to the product of the average historical deep sleep duration in the user's historical sleep data and the quality coefficient.

4. The system according to claim 3, characterized in that, The in-vehicle infotainment module also includes a fatigue driving warning unit. The fatigue driving warning unit includes a preset driving threshold. The fatigue driving warning unit receives driving time through the vehicle controller. When the driving time is greater than or equal to the preset driving threshold, it outputs a fatigue driving warning. The in-vehicle infotainment module shortens the preset driving threshold in response to the received fatigue driving state.

5. The system according to claim 4, characterized in that, When the driving status parameter indicates a fatigued driving state, the driver assistance controller takes over the vehicle controller based on the fatigued driving state and controls the vehicle movement based on a preset route.

6. The system according to claim 1, characterized in that, The wearable device also includes a Bluetooth module, which connects to a health data collector. The wearable device acquires real-time health data through the health data collector. The wearable device also includes a user health threshold range. When the real-time health data is greater than or less than the user health threshold range, the wearable device outputs a voice wake-up command. The voice wake-up command is used to control the in-vehicle infotainment module to make an emergency call.

7. The system according to claim 6, characterized in that, When the real-time health data is greater than or less than the user's health threshold range, the wearable device outputs abnormal health information. The driver assistance controller receives the abnormal health information through the in-vehicle infotainment module. Based on the abnormal health information, the driver assistance controller takes over the in-vehicle controller and controls the vehicle's movement based on the planned route. The starting point of the planned route is the vehicle's current location, and the ending point is the nearest hospital to the vehicle.

8. The system according to claim 7, characterized in that, The in-vehicle infotainment module dials a preset contact number based on the abnormal health information.

9. The system according to claim 8, characterized in that, The in-vehicle infotainment module obtains the vehicle's current location information and the nearest hospital information based on the abnormal health information, and sends the vehicle's current location information, vehicle license plate, and user health data to the hospital.

10. The system according to claim 9, characterized in that, The real-time health data also includes blood glucose, blood pressure, heart rate, and blood oxygen saturation.

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