Intelligent rest control method and system based on in-vehicle passenger monitoring

Abstract

The invention provides an intelligent rest control method and system based on in-vehicle passenger monitoring, and relates to the field of vehicle intelligent control. The method comprises the steps that vehicle information is obtained, and whether an electronic hand brake is started or not is judged; if yes, whether the driving gear is a P gear or not is judged; if yes, judging whether a triggering condition of the rest mode is obtained or not; if yes, whether all vehicle conditions meet the requirement for automatically starting a rest mode or not is judged; if yes, all functions of the intelligent rest mode start to run, and when any rest mode exit condition is obtained, the intelligent rest mode is automatically exited. According to the vehicle, the rest mode can be intelligently recognized and judged to be started according to the behaviors and states of the user, the user does not need to start the rest function through tedious operation, and the comfort of the user using the rest function and the intelligent vehicle using experience are greatly improved.

Description

Technical Field

[0001] The present invention relates to the field of vehicle intelligent control technology, and in particular to an intelligent nap control method and system based on in-vehicle occupant monitoring. Background Art

[0002] As automobiles are promoted towards the "new four directions" of electrification, intelligence, networking and sharing, users' demand for the intelligence of new energy vehicles is also increasing. Vehicle manufacturers are designing a variety of functions to meet users' growing needs.

[0003] The existing smart car nap function solutions have the following defects. First, the vehicle must add a nap mode switch, and the user must operate or voice control the switch before using the energy-saving function. The execution of the function is relatively cumbersome, and the user's intelligent experience is low. Second, under the existing technical solution, the user must adjust the nap mode seat to the appropriate position by electric adjustment, and the seat position memory module will memorize it. The user also needs to perform a series of operations to turn on the seat massage function, and the experience is relatively cumbersome. Third, when the vehicle air conditioner is turned on in AUTO mode in nap mode, the temperature is automatically adjusted according to the temperature inside and outside the car, and no more precise adjustment is made based on the user's body sensation. Summary of the invention

[0004] Based on this, the purpose of the present invention is to provide an intelligent nap control method and system based on in-vehicle occupant monitoring, which is used to solve the technical problem that the vehicle nap function solution in the prior art requires a low level of intelligence.

[0005] In one aspect, the present invention provides an intelligent nap control method based on in-vehicle occupant monitoring, comprising:

[0006] Obtain vehicle information and determine whether the electronic parking brake is enabled based on the vehicle information;

[0007] If the electronic parking brake is already activated, determine whether the driving gear is in P gear;

[0008] If the driving gear is in P gear, determining whether the triggering conditions of the nap mode have been obtained, wherein the triggering conditions include a voice command triggering the nap mode, a driver status triggering the nap mode, and a timer triggering the nap mode;

[0009] If the triggering conditions for the nap mode have been obtained, determine whether all vehicle conditions are met to automatically activate the nap mode;

[0010] If all vehicle conditions are met to automatically start the nap mode, all functions of the smart nap mode will start to run until any nap mode exit condition is obtained, then the smart nap mode will be automatically exited.

[0011] The above-mentioned intelligent nap control method based on in-vehicle occupant monitoring can enable the vehicle to intelligently identify and judge the nap mode based on the user's behavior and status, without the user having to turn on the nap function through cumbersome operations. Specifically, the present invention combines the in-vehicle occupant monitoring system to collect information such as user behavior, status, body temperature, body shape, age, gender, etc., and adjusts the seat position, seat massage style, and temperature and air volume in the air conditioning AUTO mode in combination with the corresponding algorithm, greatly improving the user's comfort when using the nap function and the intelligent car experience.

[0012] In addition, the intelligent nap control method based on in-vehicle occupant monitoring according to the present invention may also have the following additional technical features:

[0013] Furthermore, the method for triggering the nap mode by the driver's status includes:

[0014] The occupant monitoring system obtains the driver's status;

[0015] Determining whether the occupant is tired or has closed his eyes for more than a first preset time according to the driver's state;

[0016] If the occupant is tired or closes his eyes for more than a first preset time, the nap mode is triggered.

[0017] Furthermore, the method for triggering the timed nap mode includes:

[0018] When the driving gear is in P gear, the delay timing starts to obtain the timing status;

[0019] Determine whether the timing time reaches a second preset time according to the timing state;

[0020] If the timing time reaches the second preset time, the nap mode is triggered.

[0021] Furthermore, the method for triggering the nap mode by voice command includes:

[0022] When the driving gear is in P gear, determine whether to obtain the voice command to start the nap mode;

[0023] If the voice command to start the nap mode is obtained, the nap mode will be triggered.

[0024] Further, in the step of determining whether all vehicle conditions are satisfied for automatically starting the nap mode, the vehicle conditions include a first condition and a second condition:

[0025] The first condition is whether the four doors, hood and trunk lid of the vehicle are all closed;

[0026] The second condition is that the power battery SOC is greater than a first threshold or the vehicle is in a charging state.

[0027] Furthermore, if all vehicle conditions are met to automatically start the nap mode, then in the step of starting all functions of the intelligent nap mode, all functions of the nap mode include:

[0028] The instrument panel is off, the large screen brightness is reduced, the dynamic screen saver is switched, and music is played;

[0029] The alarm starts counting and displays the countdown time;

[0030] The occupant monitoring system scans the user's body shape and calculates the target position of the seat and backrest;

[0031] The occupant monitoring system identifies the user's gender and age and determines the target style of seat massage;

[0032] Combine the temperature inside and outside the car with the user's body temperature scanned by the occupant monitoring system to determine whether the seat is heated or ventilated;

[0033] The air conditioning ECU calculates the target temperature and air volume in the air conditioning AUTO mode based on the user's body temperature scanned by the occupant monitoring system;

[0034] Some interior and exterior lights automatically shut off;

[0035] The whole vehicle is automatically locked;

[0036] The whole vehicle has automatic window raising;

[0037] The fragrance turns on automatically.

[0038] Further, in the step of automatically exiting the smart nap mode until any nap mode exit condition is obtained, the nap mode exit condition includes:

[0039] The nap mode countdown is up, the alarm will sound, and the alarm will play;

[0040] The occupant monitoring system detects that the user wakes up and sits up or stretches while lying down;

[0041] The whole vehicle exits high voltage;

[0042] Exit the P gear from the driving position;

[0043] The power battery SOC is less than the second threshold and the vehicle is not in a charging state;

[0044] The electronic parking brake is not activated.

[0045] Furthermore, until any nap mode exit condition is obtained, the step of automatically exiting the smart nap mode also includes:

[0046] Automatically exit Smart Nap Mode, and all Nap Mode functions except air conditioning return to the state before Nap Mode was turned on.

[0047] Another aspect of the present invention provides an intelligent nap control system based on in-vehicle occupant monitoring, comprising a main control ECU and an occupant monitoring system, a brake control system, a power control system, an air conditioning control system, a seat control system and a cabin vehicle control system respectively connected to the main control ECU; the system also includes a regional controller connected to the main control ECU, wherein:

[0048] The occupant monitoring system is used to collect basic information about the occupant's mental state, body shape, gender, age, and body temperature, and send the information to the main control ECU, and send the occupant's body temperature information to the air conditioning control;

[0049] Braking control system, used to send the electronic handbrake status to the main control ECU;

[0050] The power control system is used to send the vehicle's high voltage status, driving gear status, charging status, and power battery SOC to the main control ECU;

[0051] Air conditioning control system, used to accurately adjust the cabin temperature based on the air conditioning AUTO control request sent by the main control ECU and the passenger's body temperature information;

[0052] The seat control system is used to feed back the seat position, heating / ventilation, and massage status to the main control ECU, and adjust the seat according to the seat position adjustment request, heating / ventilation request, and massage request sent by the main control ECU;

[0053] The cockpit vehicle control system is used to feedback the status of the large screen, instrument and multimedia to the main control ECU, send user voice commands, and receive instrument screen off, large screen brightness adjustment, music playback, countdown display, alarm playback, voice confirmation, information display requests sent by the main control ECU, and control the vehicle to perform corresponding actions;

[0054] The regional controller is used to feedback the status of four doors and two lids, interior lights, exterior lights, door locks, and windows to the main control ECU, and receive the control requests for interior lights, exterior lights, door locks, and windows sent by the main control ECU, and execute the actions of turning on or off the interior and exterior lights, unlocking the door locks, and raising and lowering the windows;

[0055] The main control ECU has a built-in RTC crystal oscillator timer, which is responsible for delay timing judgment; the main control ECU is also used to judge the low-voltage power supply mode, and based on all the information obtained and combined with its own software logic strategy, it controls the opening, operation and exit of the smart nap mode function, and enters or exits. BRIEF DESCRIPTION OF THE DRAWINGS

[0056] Figure 1 is a flow chart of an intelligent nap control method based on in-vehicle occupant monitoring in an embodiment of the present invention;

[0057] Figure 2 Schematic diagram of the architecture of an intelligent nap control system based on in-vehicle occupant monitoring in an embodiment of the present invention;

[0058] The following specific implementation manner will further illustrate the present invention in conjunction with the above-mentioned drawings. DETAILED DESCRIPTION

[0059] In order to facilitate the understanding of the present invention, the present invention will be described more fully below with reference to the relevant drawings. Several embodiments of the present invention are given in the drawings. However, the present invention can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the present invention more thorough and comprehensive.

[0060] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art of the present invention. The terms used herein 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 herein includes any and all combinations of one or more related listed items.

[0061] In order to solve the technical problem that the vehicle nap function solution in the prior art requires a low level of intelligence, the present application provides an intelligent nap control method and system based on in-vehicle occupant monitoring. The vehicle can intelligently identify and judge the start of the nap mode based on the user's behavior and status, without the user having to turn on the nap function through cumbersome operations. The present invention combines the in-vehicle occupant monitoring system to collect information such as user behavior, status, body temperature, body shape, age, gender, etc., and adjusts the seat position, seat massage style, and temperature and air volume in the air conditioning AUTO mode in combination with the corresponding algorithm, greatly improving the user's comfort when using the nap function and the intelligent car experience.

[0062] In order to facilitate understanding of the present invention, several embodiments of the present invention are provided below. However, the present invention can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the present invention more thorough and comprehensive.

[0063] Embodiment 1

[0064] See also Figure 1 , which shows an intelligent nap control method based on in-vehicle occupant monitoring in a first embodiment of the present invention, and the method includes steps S101 to S108:

[0065] S101. Obtain vehicle information.

[0066] S102. Determine whether the electronic parking brake is enabled according to vehicle information.

[0067] If the electronic parking brake is not activated, return to step S101;

[0068] If the electronic parking brake is already activated, execute step S103;

[0069] S103: Determine whether the driving gear is in P gear.

[0070] If the driving gear is in the P gear, execute step S104;

[0071] If the driving gear is not in the P gear, return to step S101;

[0072] S104: Determine whether a trigger condition for the nap mode has been obtained.

[0073] In this embodiment, the triggering conditions include voice command triggering nap mode, driver status triggering nap mode, and timer triggering nap mode. The method for triggering the nap mode by the driver status includes: the occupant monitoring system obtains the driver status; determines whether the occupant is tired or has closed his eyes for more than a first preset time according to the driver status; if the occupant is tired or has closed his eyes for more than the first preset time, the nap mode is triggered; if the occupant is tired or has not closed his eyes for more than the first preset time, the process returns to the step of executing the occupant monitoring system obtaining the driver status.

[0074] The triggering method of the timer-triggered nap mode includes: when the driving gear is in the P gear, starting the delayed timing to obtain the timing status; judging whether the timing time reaches the second preset time according to the timing status; if the timing time reaches the second preset time, triggering the nap mode; if the timing time does not reach the second preset time, returning to the step of starting the delayed timing to obtain the timing status.

[0075] The method for triggering the nap mode by voice command includes: when the driving gear is in P gear, determining whether a nap mode voice activation command is obtained; if the nap mode voice activation command is obtained, triggering the nap mode.

[0076] If the triggering condition of the nap mode has been obtained, execute step S105;

[0077] S105: Determine whether all vehicle conditions are met to automatically start the nap mode.

[0078] The vehicle conditions include a first condition and a second condition; the first condition is whether the four doors, hood and trunk lid of the vehicle are all closed; the second condition is that the power battery SOC is greater than a first threshold or the vehicle is in a charging state.

[0079] If all vehicle conditions are met to automatically start the nap mode, step S106 is executed;

[0080] S106: All functions of the smart nap mode start running.

[0081] All functions of the nap mode include: the instrument panel is turned off, the brightness of the large screen is reduced, the dynamic screen saver is switched, and music is played; the alarm starts timing and the countdown time is displayed; the occupant monitoring system scans the user's body shape and calculates the target position of the seat and backrest; the occupant monitoring system identifies the user's gender and age, and determines the target style of seat massage; the seat heating / ventilation is determined by combining the inside and outside temperatures of the vehicle with the user's body temperature scanned by the occupant monitoring system; the air-conditioning ECU calculates the target temperature and air volume in the air-conditioning AUTO mode based on the user's body temperature scanned by the occupant monitoring system; some interior and exterior lights are automatically turned off; the entire vehicle is automatically locked; the entire vehicle windows are automatically raised; and the fragrance is automatically turned on.

[0082] S107: Determine whether any nap mode exit condition is obtained.

[0083] The conditions for exiting nap mode include: the nap mode countdown is up, the alarm is prompted, and the alarm is played; the occupant monitoring system detects that the user has woken up and has sat up or stretched out; the vehicle exits high voltage; the driving gear exits P gear; the power battery SOC is less than the second threshold and the vehicle is not in a charging state; the electronic handbrake is not enabled.

[0084] If any nap mode exit condition is obtained, execute step S108;

[0085] If any nap mode exit condition is not obtained, return to step S106;

[0086] S108. Automatically exit the smart nap mode.

[0087] As a specific example, until any nap mode exit condition is obtained, the step of automatically exiting the smart nap mode also includes: automatically exiting the smart nap mode, and other nap mode functions except air conditioning return to the state before the nap mode is turned on.

[0088] The technical solution of this application, on the one hand, is different from the existing nap mode in the industry. It does not require the user to trigger through various switch operation modes. The vehicle will combine the power mode, high voltage state, driving gear, electronic handbrake, charging state, occupant status identified by the in-vehicle occupant monitoring system, power battery SOC, delay timing and other data for statistical analysis, combined with the main control ECU software algorithm arbitration judgment, to intelligently turn on the nap mode;

[0089] Secondly, after the existing nap mode in the industry is running, the seat position, heating / ventilation, and massage adjustment need to be operated according to the state set in advance by the user. A new user needs to re-set it in advance before it can be used normally. The present invention does not require the user to make any settings. The main control ECU will combine the occupant's body shape, gender, age, and body temperature information scanned by the in-vehicle occupant monitoring system, and combine its own algorithm to calculate the target seat position, heating / ventilation gear, and massage style, and send the corresponding control request to the seat control ECU to automatically complete the adjustment according to the user's needs;

[0090] On the other hand, the temperature adjustment algorithm in the AUTO mode of the existing industry is mainly adjusted according to the temperature inside and outside the car after the nap mode is running. In the present invention, the in-car occupant monitoring system will obtain the occupant's body temperature information through infrared scanning and send the body temperature information to the air conditioning control ECU. The air conditioning ECU will upgrade the temperature adjustment algorithm in the AUTO mode, combine the occupant's body temperature information and the temperature information inside and outside the car, and adjust the cabin temperature to the user's best comfort experience.

[0091] In summary, the intelligent nap control method based on in-vehicle occupant monitoring in the above embodiments of the present invention can enable the vehicle to intelligently identify and judge the nap mode based on the user's behavior and status, without the user having to turn on the nap function through cumbersome operations. Specifically, the present invention combines the in-vehicle occupant monitoring system to collect information such as user behavior, status, body temperature, body shape, age, gender, etc., and adjusts the seat position, seat massage style, and temperature and air volume in the air conditioning AUTO mode in combination with the corresponding algorithm, greatly improving the user's comfort when using the nap function and the intelligent car experience.

[0092] Embodiment 2

[0093] See also Figure 2 , which shows an intelligent nap control system based on in-vehicle occupant monitoring in a second embodiment of the present invention, including a main control ECU and an occupant monitoring system, a brake control system, a power control system, an air conditioning control system, a seat control system and a cockpit vehicle control system respectively connected to the main control ECU; the system also includes a regional controller connected to the main control ECU, wherein:

[0094] The occupant monitoring system is used to collect basic information about the occupant's mental state, body shape, gender, age, and body temperature, and send the information to the main control ECU, and send the occupant's body temperature information to the air conditioning control;

[0095] Braking control system, used to send the electronic handbrake status to the main control ECU;

[0096] The power control system is used to send the vehicle's high voltage status, driving gear status, charging status, and power battery SOC to the main control ECU;

[0097] Air conditioning control system, used to accurately adjust the cabin temperature based on the air conditioning AUTO control request sent by the main control ECU and the passenger's body temperature information;

[0098] The seat control system is used to feed back the seat position, heating / ventilation, and massage status to the main control ECU, and adjust the seat according to the seat position adjustment request, heating / ventilation request, and massage request sent by the main control ECU;

[0099] The cockpit vehicle control system is used to feedback the status of the large screen, instrument and multimedia to the main control ECU, send user voice commands, and receive instrument screen off, large screen brightness adjustment, music playback, countdown display, alarm playback, voice confirmation, information display requests sent by the main control ECU, and control the vehicle to perform corresponding actions;

[0100] The regional controller is used to feedback the status of four doors and two lids, interior lights, exterior lights, door locks, and windows to the main control ECU, and receive the control requests for interior lights, exterior lights, door locks, and windows sent by the main control ECU, and execute the actions of turning on or off the interior and exterior lights, unlocking the door locks, and raising and lowering the windows;

[0101] The main control ECU has a built-in RTC crystal oscillator timer, which is responsible for delay timing judgment; the main control ECU is also used to judge the low-voltage power supply mode, and based on all the information obtained and combined with its own software logic strategy, it controls the opening, operation and exit of the smart nap mode function, and enters or exits.

[0102] In summary, the intelligent nap control system based on in-vehicle occupant monitoring in the above embodiments of the present invention can enable the vehicle to intelligently identify and judge the nap mode based on the user's behavior and status, without the user having to turn on the nap function through cumbersome operations. Specifically, the present invention combines the in-vehicle occupant monitoring system to collect information such as user behavior, status, body temperature, body shape, age, gender, etc., and adjusts the seat position, seat massage style, and temperature and air volume in the air conditioning AUTO mode in combination with the corresponding algorithm, greatly improving the user's comfort when using the nap function and the intelligent car experience.

[0103] The logic and / or steps represented in the flowchart or otherwise described herein, for example, can be considered as an ordered list of executable instructions for implementing logical functions, and can be embodied in any computer-readable medium for use by an instruction execution system, device or apparatus (such as a computer-based system, a system including a processor, or other system that can fetch instructions from an instruction execution system, device or apparatus and execute instructions), or in conjunction with such instruction execution systems, devices or apparatuses. For the purposes of this specification, "computer-readable medium" can be any device that can contain, store, communicate, propagate or transmit a program for use by an instruction execution system, device or apparatus, or in conjunction with such instruction execution systems, devices or apparatuses.

[0104] More specific examples of computer-readable media (a non-exhaustive list) include the following: an electrical connection with one or more wires (electronic device), a portable computer disk case (magnetic device), a random access memory (RAM), a read-only memory (ROM), an erasable and programmable read-only memory (EPROM or flash memory), a fiber optic device, and a portable compact disk read-only memory (CDROM). In addition, the computer-readable medium may even be a paper or other suitable medium on which the program is printed, since the program may be obtained electronically, for example, by optically scanning the paper or other medium, followed by editing, deciphering or, if necessary, processing in another suitable manner, and then stored in a computer memory.

[0105] It should be understood that the various parts of the present invention can be implemented by hardware, software, firmware or a combination thereof. In the above-mentioned embodiments, a plurality of steps or methods can be implemented by software or firmware stored in a memory and executed by a suitable instruction execution system. For example, if implemented by hardware, as in another embodiment, it can be implemented by any one of the following technologies known in the art or their combination: a discrete logic circuit having a logic gate circuit for implementing a logic function for a data signal, a dedicated integrated circuit having a suitable combination of logic gate circuits, a programmable gate array (PGA), a field programmable gate array (FPGA), etc.

[0106] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner.

[0107] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. An intelligent nap control system based on in-vehicle occupant monitoring, characterized in that: The system comprises a main control ECU and an occupant monitoring system, a brake control system, a power control system, an air conditioning control system, a seat control system and a cockpit vehicle control system respectively connected to the main control ECU; the system also comprises a regional controller connected to the main control ECU, wherein: The occupant monitoring system is used to collect basic information about the occupant's mental state, body shape, gender, age, and body temperature, and send the information to the main control ECU, and send the occupant's body temperature information to the air conditioning control; Braking control system, used to send the electronic handbrake status to the main control ECU; The power control system is used to send the vehicle's high voltage status, driving gear status, charging status, and power battery SOC to the main control ECU; Air conditioning control system, used to accurately adjust the cabin temperature based on the air conditioning AUTO control request sent by the main control ECU and the passenger's body temperature information; The seat control system is used to feed back the seat position, heating / ventilation, and massage status to the main control ECU, and adjust the seat according to the seat position adjustment request, heating / ventilation request, and massage request sent by the main control ECU; The cockpit vehicle control system is used to feedback the status of the large screen, instrument and multimedia to the main control ECU, send user voice commands, and receive instrument screen off, large screen brightness adjustment, music playback, countdown display, alarm playback, voice confirmation, information display requests sent by the main control ECU, and control the vehicle to perform corresponding actions; The regional controller is used to feedback the status of four doors and two lids, interior lights, exterior lights, door locks, and windows to the main control ECU, and receive the control requests for interior lights, exterior lights, door locks, and windows sent by the main control ECU, and execute the actions of turning on or off the interior and exterior lights, unlocking the door locks, and raising and lowering the windows; The main control ECU has a built-in RTC crystal oscillator timer, which is responsible for delay timing judgment; the main control ECU is also used to judge the low-voltage power supply mode, and based on all the information obtained and combined with its own software logic strategy, it controls the opening, operation and exit of the smart nap mode function, and enters or exits.

2. An intelligent nap control method based on in-vehicle occupant monitoring, characterized in that: Applied to the intelligent nap control system based on in-vehicle occupant monitoring as described in claim 1 above, the method comprises: Obtain vehicle information and determine whether the electronic parking brake is enabled based on the vehicle information; If the electronic parking brake is already activated, determine whether the driving gear is in P gear; If the driving gear is in P gear, determining whether the triggering conditions of the nap mode have been obtained, wherein the triggering conditions include a voice command triggering the nap mode, a driver status triggering the nap mode, and a timer triggering the nap mode; If the triggering conditions for the nap mode have been obtained, determine whether all vehicle conditions are met to automatically activate the nap mode; If all vehicle conditions are met to automatically start the nap mode, all functions of the smart nap mode will start to run until any nap mode exit condition is obtained, then the smart nap mode will be automatically exited.

3. The intelligent nap control method based on in-vehicle occupant monitoring according to claim 2 is characterized in that: Driver status triggers nap mode in the following ways: The occupant monitoring system obtains the driver's status; Determining whether the occupant is tired or has closed his eyes for more than a first preset time according to the driver's state; If the occupant is tired or closes his eyes for more than a first preset time, the nap mode is triggered.

4. The intelligent nap control method based on in-vehicle occupant monitoring according to claim 2 is characterized in that: The timer-triggered nap mode can be triggered by: When the driving gear is in P gear, the delay timing starts to obtain the timing status; Determine whether the timing time reaches a second preset time according to the timing state; If the timing time reaches the second preset time, the nap mode is triggered.

5. The intelligent nap control method based on in-vehicle occupant monitoring according to claim 2 is characterized in that: The methods for triggering the nap mode by voice command include: When the driving gear is in P gear, determine whether to obtain the voice command to start the nap mode; If the voice command to start the nap mode is obtained, the nap mode will be triggered.

6. The intelligent nap control method based on in-vehicle occupant monitoring according to claim 2 is characterized in that: In the step of determining whether all vehicle conditions are satisfied for automatically starting the nap mode, the vehicle conditions include a first condition and a second condition: The first condition is whether the four doors, hood and trunk lid of the vehicle are all closed; The second condition is that the power battery SOC is greater than a first threshold or the vehicle is in a charging state.

7. The intelligent nap control method based on in-vehicle occupant monitoring according to claim 2 is characterized in that: If all vehicle conditions are met to automatically start the nap mode, all functions of the intelligent nap mode will start to operate. All functions of the nap mode include: The instrument panel is off, the large screen brightness is reduced, the dynamic screen saver is switched, and music is played; The alarm starts counting and displays the countdown time; The occupant monitoring system scans the user's body shape and calculates the target position of the seat and backrest; The occupant monitoring system identifies the user's gender and age and determines the target style of seat massage; Combine the temperature inside and outside the car with the user's body temperature scanned by the occupant monitoring system to determine whether the seat is heated or ventilated; The air conditioning ECU calculates the target temperature and air volume in the air conditioning AUTO mode based on the user's body temperature scanned by the occupant monitoring system; Some interior and exterior lights automatically shut off; The whole vehicle is automatically locked; The whole vehicle has automatic window raising; The fragrance turns on automatically.

8. The intelligent nap control method based on in-vehicle occupant monitoring according to claim 2 is characterized in that: In the step of automatically exiting the smart nap mode until any nap mode exit condition is obtained, the nap mode exit condition includes: The nap mode countdown is up, the alarm will sound, and the alarm will play; The occupant monitoring system detects that the user wakes up and sits up or stretches while lying down; The whole vehicle exits high voltage; Exit the P gear from the driving position; The power battery SOC is less than the second threshold and the vehicle is not in a charging state; The electronic parking brake is not activated.

9. The intelligent nap control method based on in-vehicle occupant monitoring according to claim 2 is characterized in that: When any of the nap mode exit conditions is obtained, the step of automatically exiting the smart nap mode also includes: Automatically exit Smart Nap Mode, and all Nap Mode functions except air conditioning return to the state before Nap Mode was turned on.

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