TWI663581B - Vehicle driver anti-sleep integration system and vehicle driver anti-sleep method - Google Patents

Abstract

A vehicle driver anti-sleepy integrated system includes: an eye state monitoring unit, a rear seat state monitoring unit, a seat belt state monitoring unit, a vehicle speed monitoring unit, an occupant reminding unit, a driver reminding unit, and a processing unit. The eye state monitoring unit is used to monitor the driver's eye state. The rear seat status monitoring unit is used to monitor the rear seat status of the vehicle. The seat belt status monitoring unit is used to monitor the rear seat belt status of the vehicle. The vehicle speed monitoring unit is used to monitor the vehicle speed. The occupant reminder unit is used to send out occupant reminder signals. The driver reminder unit is used to send a driver reminder signal. The processing unit is used to make judgments based on the received eye state monitoring signals, rear seat state monitoring signals, seat belt state monitoring signals, and vehicle speed signals to control the driver reminder unit and the occupant reminder unit.

Description

Vehicle driver anti-drowsiness integration system and vehicle driver anti-drowsiness method

The invention relates to a vehicle driver anti-sleepiness integration system and a vehicle driver anti-sleepiness method.

The driver of the vehicle may doze off due to fatigue when driving for a long time or driving at night, so many different anti-sleeping devices appear on the market to prevent the driver from dozing off. However, these anti-sleepy devices are only aimed at how to remind or wake up the driver to make improvements, and there are still deficiencies. In addition, the rear seat passengers cannot clearly know whether the driver is driving in a doze state, causing rear passengers' doubts.

In view of this, the present inventor has been engaged in the development and design of related products for many years, and feels that the above-mentioned deficiency can be improved. It is especially dedicated to research and cooperate with the application of theory, and finally proposes a present invention with reasonable design and effective improvement of the above-mentioned deficiency.

The main purpose of the present invention is to provide a vehicle driver anti-sleepiness integrated system and a vehicle driver anti-sleepiness method to solve the above problems.

The present invention provides an integrated system for preventing driver doze of a vehicle, which is suitable for a vehicle and includes: an eye state monitoring unit for monitoring the driver's eye state and correspondingly outputting an eye state monitoring signal, the eye state The monitoring signal is used to determine whether the driver is in a doze state; a rear seat state monitoring unit is used to monitor the rear seat state of the vehicle and correspondingly output a rear seat state monitoring signal, which monitors the rear seat state. The test signal is used to judge whether there is an occupant in the rear seat of the vehicle; a seat belt status monitoring unit is used to monitor the status of the rear seat belt of the vehicle, and correspondingly outputs a seat belt status monitoring signal, which is It is used to judge whether the rear seat belt of the vehicle is fastened; a vehicle speed monitoring unit to monitor the vehicle speed and correspondingly output a vehicle speed signal. The vehicle speed signal is used to judge whether the vehicle is running; an occupant reminder unit For sending occupant reminding signals; a driver reminding unit for sending driver reminding signals; and a processing unit, electrically coupled to the eye state monitoring unit, the rear seat state monitoring unit, and the seat belt status The monitoring unit, the vehicle speed monitoring unit, the occupant reminding unit and the driver reminding unit, the processing unit is used to receive the eye state monitoring signal, the rear seat state monitoring signal, the seat belt state monitoring signal, the The vehicle speed signal is judged to control the driver reminder unit and the occupant reminder unit, and when it is judged that the vehicle is running When the driver enters the doze state and there is an occupant in the rear seat of the vehicle, the driver reminder unit and the occupant reminder unit are respectively controlled to issue the driver reminder signal and the occupant reminder signal indicating that the driver enters the doze state at the same time .

Preferably, the eye state monitoring unit has a frame, and the frame includes a connected frame and a temple, the frame is provided with at least one electrode for collecting eye movement wave signals, and the mirror is provided with at least one An image capture unit for collecting eye image signals.

Preferably, the eye state monitoring signal includes an eye movement wave signal and an eye image signal, and the processing unit is used to determine whether the driver enters a doze state according to the eye movement wave signal and the eye image signal.

Preferably, the integrated anti-sleepy system for the driver of the vehicle further includes a touch monitoring unit for monitoring the status of the steering wheel of the vehicle, and correspondingly outputs a status monitoring signal for the steering wheel, which is used to determine whether the steering wheel of the vehicle is The driver touched.

Preferably, the processing unit is further used to determine whether the driver enters the doze state according to the steering wheel state monitoring signal.

Preferably, the rear seat state monitoring unit is a weight sensor, which is provided at the rear seat of the vehicle.

Preferably, the seat belt state monitoring unit is a contact switch, which is provided in the rear seat belt of the vehicle.

Preferably, the occupant reminding unit is one or a combination of a vibration element, a pronunciation element, or a light-emitting element, and is provided in a rear seat belt of the vehicle.

Preferably, the driver reminding unit is one or a combination of a vibration element, a pronunciation element, or a light-emitting element, and is provided on the frame.

The invention further provides a method for preventing the driver from falling asleep, including the following steps: providing the above-mentioned integrated system for preventing the driver from falling asleep; using the vehicle speed monitoring unit to monitor the vehicle speed and determine whether the vehicle is running; When the vehicle is running, use the rear seat status monitoring unit to monitor the rear seat status of the vehicle and determine whether there is an occupant in the rear seat of the vehicle; if it is determined that the vehicle has an occupant, use the seat belt status monitoring The unit monitors the vehicle ’s rear seat belt status and determines whether the vehicle ’s rear seat belt is fastened; if it is determined that the vehicle ’s rear seat belt is fastened, the driver ’s Eye state, and determine whether the driver has entered a doze state; and if it is determined that the driver has entered a doze state, control the driver reminder unit and the occupant reminder unit to simultaneously issue a signal indicating that the driver has entered a doze state The driver reminder signal and the occupant reminder signal.

Therefore, the vehicle driver anti-drowsiness integration system and vehicle driver anti-drowsiness method provided by the present invention can control the driver reminder unit and The occupant reminder unit simultaneously sends out a driver reminder signal indicating that the driver is in a doze state The wake-up signal can not only wake up the driver through the driver reminder unit, but also remind the occupant to doze through the occupant reminder unit, so that the occupant wakes up the driver, effectively solving the existing technology To ensure the life safety of drivers and occupants when driving.

1‧‧‧Eye Condition Monitoring Unit

10‧‧‧Frame

11‧‧‧Frame

111‧‧‧electrode

12‧‧‧Mirror feet

121‧‧‧Image capture unit

2‧‧‧ Rear seat status monitoring unit

3‧‧‧ Seat belt status monitoring unit

4‧‧‧Speed monitoring unit

5‧‧‧ crew reminder unit

6‧‧‧ Driver reminder unit

7‧‧‧Processing unit

71‧‧‧ First processor

72‧‧‧second processor

8‧‧‧Touch monitoring unit

900‧‧‧Vehicle

901‧‧‧back seat

902‧‧‧Back seat belt

9021‧‧‧Lock

9022‧‧‧ Buckle

9023‧‧‧Body

903‧‧‧steering wheel

S103 ~ S121‧‧‧Step

FIG. 1 is a schematic diagram of an integrated system for preventing driver doze of the present invention.

2 is a schematic diagram of the application of the eye state monitoring unit of the integrated system for preventing driver doze of the driver of the present invention.

3 is a schematic diagram of the application of the seat belt state monitoring unit of the integrated system for preventing driver doze of the driver of the present invention.

FIG. 4 is a schematic diagram of another vehicle driver anti-sleepiness integrated system of the present invention.

5 is a schematic diagram of the application of the touch monitoring unit of the integrated system for preventing driver's doze of the driver of the present invention.

FIG. 6 is a schematic diagram of another vehicle driver anti-sleepiness integration system of the present invention.

7 is a schematic flowchart of the method of the present invention.

In order to understand the features and technical contents of the present invention further, please refer to the following detailed description and drawings of the present invention. However, the drawings are provided for reference and explanation only, and are not intended to limit the scope of the present invention. And, the concept of the present invention may be embodied in many different forms, and should not be construed as being limited to the exemplary embodiments set forth herein.

Please refer to FIG. 1 to FIG. 3, the vehicle driver anti-sleeping integrated system of this embodiment includes an eye status monitoring unit 1, a rear seat status monitoring unit 2, a seat belt status monitoring unit 3, a vehicle speed monitoring unit 4, an occupant reminder Unit 5, driver reminder unit 6, and processing unit 7.

The eye state monitoring unit 1 is used to monitor the driver's eye state The eye state monitoring signal appears, and the eye state monitoring signal is used to determine whether the driver has entered a doze state. In practice, the eye state monitoring unit 1 may be eye movement wave monitoring glasses or eye image monitoring glasses. Eye-moving monitoring glasses collect the changes of eye-moving waves through the electrodes installed on the glasses, and then output the eye-moving wave signals, and interpret the eye-moving wave signals to distinguish whether the person is in a doze state. The eye image monitoring glasses collect the changes of the eye image through the image capturing unit installed on the glasses, and then output the eye image signal, and interpret the signal of the eye image signal to distinguish whether the person has fallen asleep. .

In this embodiment, the eye state monitoring unit 1 may be an integrated monitoring glasses (as shown in FIG. 2), which has a frame 10, and the frame 10 includes a frame 11 and a temple 12 connected to each other, and the frame 11 is provided There is at least one electrode 111, and the temple 12 is provided with at least one image capturing unit 121. The electrode 111 and the image capturing unit 121 are respectively used to collect eye movement wave signals and eye image signals, that is, the eye state monitoring The signal is output to the processing unit 7. The processing unit 7 can distinguish whether the driver is in a doze state according to the strength of the eye movement signal. When the eye movement signal is strong, it indicates that there is strong eye movement, indicating that the driver is Sober, when the eye movement signal decreases, it means that the driver has begun to enter a doze state, and the processing unit 7 can also make a subsidy judgment based on the eye image signal, that is, the image corresponding to the eye image signal is an open-eye image or The closed-eye image is used for auxiliary judgment, that is, when the eye movement wave signal decreases and the image corresponding to the eye image signal is the closed-eye image, the processing unit 7 can more accurately determine whether the driver is in a doze state .

The rear seat state monitoring unit 2 is used to monitor the rear seat state of the vehicle 900 and correspondingly output a rear seat state monitoring signal, and the rear seat state monitoring signal is used to determine whether the rear seat 901 of the vehicle 900 has an occupant. In practice, the rear seat state monitoring unit 2 may be a weight sensor (as shown in FIG. 3), which is provided in the rear seat 901 of the vehicle 900. When there is an occupant sitting on the rear seat 901, the weight sensor can output that there is an occupant after sensing the weight of the occupant The sensing signal of, that is, the rear seat state monitoring signal is sent to the processing unit 7, and the processing unit 7 can determine that the rear seat 901 of the vehicle 900 is occupied.

The seat belt status monitoring unit 3 is used to monitor the rear seat belt status of the vehicle 900 and correspondingly output a seat belt status monitoring signal, and the seat belt status monitoring signal is used to determine whether the rear seat belt 902 of the vehicle 900 is fastened. In practice, the seat belt state monitoring unit 3 may be a contact switch provided in the rear seat belt 902 (see FIG. 3), or it may be a contact switch provided in the lock 9021 of the rear seat belt 902. When the buckle 9022 of the rear seat belt 902 is inserted into the lock 9021 of the rear seat belt 902, the contact switch can be closed to output a switch signal indicating that there is a tie, that is, the seat belt status monitoring signal to the processing unit 7. The processing unit 7 can determine whether the rear seat belt 902 of the vehicle 900 is fastened.

The vehicle speed monitoring unit 4 is used to monitor the vehicle speed of the vehicle 900 and correspondingly output a vehicle speed signal, and the vehicle speed signal is used to determine whether the vehicle 900 is traveling. In practice, the vehicle speed monitoring unit 4 may be a Hall-effect vehicle speed sensor or a photoelectric vehicle speed sensor, which is installed on the wheel or gearbox of the vehicle 900, but may also be a GPS that is easier to integrate and has a lower cost The vehicle speed sensor is provided on the frame 10 or the rear seat belt 902.

The occupant reminder unit 5 is used to issue a occupant reminder signal, and the driver reminder unit 6 is used to issue a driver reminder signal. The occupant reminding unit 5 and the driver reminding unit 6 are respectively one or a combination of a vibration element, a sounding element, or a light emitting element. In practice, the vibration element may be a vibration motor, the sounding element may be a buzzer, and the light-emitting element may be a light-emitting diode. Therefore, the occupant reminder signal and the driver reminder signal may be one or a combination of vibration signal, sound signal, or light signal, respectively. In this embodiment, the occupant reminder unit 5 may be installed on the rear seat belt 902 (see FIG. 3), that is, on the belt body 9023 of the rear seat belt 902 or on the lock 9021 of the rear seat belt 902 while driving The reminder unit 6 is preferably installed on the frame 10, but may also be installed on the dashboard of the vehicle 900. In addition, it should be understood that the occupant reminding unit 5 may also be provided in The seat belt of the front passenger seat, that is, the belt body of the seat belt of the front passenger seat, or the buckle of the seat belt of the front passenger seat.

The processing unit 7 may be a single or multiple microprocessors (MCU) or an embedded controller, which controls the cooperative work of the entire system. In this embodiment, as shown in FIG. 1, the processing unit 7 is electrically coupled to the eye state monitoring unit 1, the rear seat state monitoring unit 2, the seat belt state monitoring unit 3, the vehicle speed monitoring unit 4, the occupant reminding unit 5 、 和 司机 更新 组 6. The processing unit 7 is used to make judgments based on the received eye state monitoring signals, rear seat state monitoring signals, seat belt state monitoring signals, and vehicle speed signals to control the driver reminder unit 6 and the occupant reminder unit 5. Therefore, when the processing unit 7 determines that the driver is in a doze state according to the eye state monitoring signal and determines that the rear seat 901 of the vehicle 900 is occupied by the rear seat state monitoring signal, the driver reminding unit 6 and the occupant reminder are controlled The unit 5 simultaneously sends out the driver reminder signal and the occupant reminder signal indicating that the driver enters the doze state, thereby not only the driver reminding unit 6 can be used to wake up the driver, but also the occupant reminding unit 5 The occupant is reminded that his driver is dozing off, so that the occupant wakes up the driver, which effectively solves the deficiencies of the existing technology, and thus better and more fully protects the life safety of the driver and the occupant when driving. Furthermore, the occupant reminder signal indicating that the driver is in a doze state may be a relatively low-intensity and higher-intensity vibration signal, which can cause the sleeping occupant to be woken up by the seat belt, thereby forcing the occupant to wake up to wake up the driver.

As a preferred solution, as shown in FIGS. 4 and 5, the vehicle driver anti-sleeping integrated system may further include a touch monitoring unit 8, which is electrically coupled to the processing unit 7. In practice, the touch monitoring unit 8 may be at least one resistive touch sensor or a capacitive touch sensor, which is disposed on the steering wheel 903 of the vehicle 900. Moreover, the touch monitoring unit 8 is used to monitor the state of the steering wheel of the vehicle 900, that is, to monitor whether the steering wheel 903 is touched, and it can also be said to monitor whether the driver's hand is placed on or holding the vehicle 900 Steering wheel 903, and correspondingly output the steering wheel status monitoring signal, that is, the high / low level touch signal. In this way, by monitoring whether the driver's hand is placed on or holding the steering wheel 903 of the vehicle 900, it can assist in determining whether the driver is currently dozing off, thereby further ensuring driving safety. Therefore, the processing unit 7 can not only judge based on the eye state monitoring signal, but also perform auxiliary judgment based on the steering wheel state monitoring signal, and when it is determined that the driver is in a doze state and the rear of the vehicle 900 is determined based on the rear seat state monitoring signal When there is a occupant in the seat 901, the driver reminder unit 6 and the occupant reminder unit 5 are simultaneously controlled to issue a driver reminder signal and an occupant reminder signal indicating that the driver is in a doze state. In more detail, the processing unit 7 can determine that the steering wheel 903 of the vehicle 900 has not been touched for a predetermined time (3 seconds) according to the steering wheel state monitoring signal, and determine whether the driver is in a doze state.

As a preferred solution, as shown in FIG. 6, the processing unit 7 may include a first microprocessor 71 and a second microprocessor 72, and the first microprocessor 71 may be disposed at an appropriate position of the frame 10, The second microprocessor 72 may be disposed at an appropriate position of the rear seat belt 902, and the first microprocessor 71 and the second microprocessor 72 may be connected by wire or wirelessly. In this embodiment, the first microprocessor 71 is electrically coupled between the vehicle speed monitoring unit 4, the eye state monitoring unit 1 and the driver reminder unit 6, and the second microprocessor 72 is electrically coupled to the rear Between the seat state monitoring unit 2, the seat belt state monitoring unit 3 and the occupant reminding unit 5. When the first microprocessor 71 determines from the eye state monitoring signal and the vehicle speed signal that the driver of the vehicle 900 is entering the doze state, it will send a first synchronization signal to the second microprocessor 72 to make the driver remind the unit 6 and the occupant reminding unit 5 simultaneously send out a driver reminding signal and an occupant reminding signal indicating that the driver enters the doze state. In addition, when the second microprocessor 72 determines that the occupant ’s rear seat belt 902 is not fastened according to the rear seat status monitoring signal and the seat belt status monitoring signal, it sends a second synchronization signal to the first microprocessor 71, So that the driver reminder unit 6 and the occupant reminder unit 5 send The driver reminder signal and the occupant reminder signal that the rear seat belt 902 is not fastened are displayed. The aforementioned signal may be only a flashing light signal, which allows the driver to remind the occupant to fasten the seatbelt after seeing it.

Based on the above-mentioned embodiments, the present invention can be summarized as a method for preventing the driver from falling asleep. For a schematic diagram of the process, please refer to FIG. 7, and please refer to FIGS. 1 to 6 as appropriate. The vehicle driver anti-sleepiness method of the present invention is applicable to a vehicle driver anti-sleepiness integrated system (for example, the vehicle driver anti-sleepiness integrated system of the above embodiment).

First, in step S103, the vehicle speed monitoring unit 4 monitors the vehicle speed of the vehicle 900. Go to step S105.

In step S105, it is determined whether the vehicle 900 is running.

If the result of the determination in step S105 is YES, that is, it is determined that the vehicle 900 is running, the process proceeds to step S107.

In step S107, the rear seat state monitoring unit 2 is used to monitor the rear seat state of the vehicle 900. Go to step S109.

In step S109, it is determined whether there is an occupant in the rear seat 901 of the vehicle 900.

If the determination result in step S109 is negative, that is, it is determined that there is no occupant in the rear seat 901 of the vehicle 900, skip to step S110. In step S110, the eye state monitoring unit 1 is used to monitor the driver's eye state. Go to step S112. In step S112, it is determined whether the driver has entered a doze state. If the judgment result of step S112 is YES, it proceeds to step S114. In step S114, the driver reminder unit 6 is controlled to issue a driver reminder signal indicating that the driver is in a doze state.

If the result of the determination in step S109 is yes, that is, it is determined that the rear seat 901 of the vehicle 900 is occupant, the process proceeds to step S111.

In step S111, the seat belt state monitoring unit 3 is used to monitor the rear seat belt state of the vehicle 900. Go to step S113.

In step S113, it is determined whether the rear seat belt 902 of the vehicle 900 is fastened.

If the judgment result in step S113 is negative, that is, it is judged that the rear seat belt 902 of the vehicle 900 is not fastened, and the process proceeds to step S115. In step S115, the driver reminder unit 6 and the occupant reminder unit 5 are controlled to simultaneously issue a driver reminder signal and an occupant reminder signal indicating that the occupant does not wear a seat belt. Jump back to step S111.

If the judgment result in step S113 is yes, that is, it is judged that the rear seat belt 902 of the vehicle 900 is fastened, and the process proceeds to step S117.

In step S117, the eye state monitoring unit 1 is used to monitor the driver's eye state. In a preferred solution, the touch monitoring unit 8 can also be used to monitor whether the steering wheel 903 of the vehicle 900 is touched.

In step S119, it is determined whether the driver has entered a doze state.

If the result of the determination in step S119 is yes, that is, it is determined that the driver is in a doze state, and the process proceeds to step S121.

In step S121, the driver reminder unit 6 and the occupant reminder unit 5 are controlled to simultaneously issue a driver reminder signal and an occupant reminder signal indicating that the driver enters the doze state.

In summary, the vehicle driver anti-sleepiness integrated system and the vehicle driver anti-sleepiness method provided by the present invention can control the driver to remind the driver when it is determined that the driver is in a drowsy state and the rear seat of the vehicle is judged to be occupied The unit and the occupant reminder unit simultaneously send out the driver reminder signal and occupant reminder signal indicating that the driver is in a doze state, thereby not only playing the role of awakening the driver through the driver reminder unit, but also reminding the occupant The unit reminds the occupant that his driver is dozing off, so that the occupant wakes up the driver, effectively solving the shortcomings of the existing technology, so as to better and more fully protect the life safety of the driver and the occupant when driving.

The above are only preferred embodiments of the present invention, and are not intended to limit the scope of patent protection of the present invention. Therefore, any equivalent changes in the description and drawings of the present invention are included in the protection of the rights of the present invention Within the scope, together with Chen Ming.

Claims (10)

A vehicle driver's anti-sleepiness integrated system, suitable for a vehicle, includes: an eye state monitoring unit for monitoring the driver's eye state, and correspondingly outputting an eye state monitoring signal, the eye state monitoring signal is used To determine whether the driver is in a doze state; a rear seat status monitoring unit is used to monitor the rear seat status of the vehicle and correspondingly output a rear seat status monitoring signal, which is used to determine the rear seat status of the vehicle Whether there are occupants in the seat; a seat belt status monitoring unit to monitor the rear seat belt status of the vehicle and correspondingly output a seat belt status monitoring signal, which is used to judge the rear seat belt of the vehicle Whether it is fastened; a vehicle speed monitoring unit to monitor the vehicle speed and corresponding output speed signal, the vehicle speed signal is used to determine whether the vehicle is running; an occupant reminder unit is used to send occupant reminder signal; a driving A reminder unit for the driver to issue a reminder signal for the driver; and a processing unit electrically coupled to the eye state monitoring unit, Rear seat status monitoring unit, the seat belt status monitoring unit, the vehicle speed monitoring unit, the occupant reminder unit and the driver reminder unit, the processing unit is used to monitor the eye state monitor signal and the rear seat status monitor Signal, the seat belt status monitoring signal, and the vehicle speed signal are judged to control the driver reminder unit and the occupant reminder unit, and when it is judged that the vehicle is running, the driver is in a doze state and the rear seat of the vehicle is When there is an occupant, the driver reminder unit and the occupant reminder unit are controlled to simultaneously issue the driver reminder signal and the occupant reminder signal indicating that the driver enters the doze state. The integrated anti-sleepy system for vehicle drivers according to claim 1, wherein the eye state monitoring unit has a frame, and the frame includes a connected frame and temples, and the frame is provided with at least one for collecting eyes For the electrode of the moving wave signal, the temple is provided with at least one image capturing unit for collecting eye image signals. The vehicle driver's anti-sleepiness integrated system according to claim 2, wherein the eye state monitoring signal includes an eye movement wave signal and an eye image signal, and the processing unit is used to determine the eye movement wave signal and the eye image signal Determine whether the driver is in a doze state. The integrated system for preventing the driver from falling asleep as described in claim 1 further includes a touch monitoring unit for monitoring the status of the steering wheel of the vehicle and correspondingly outputting a steering wheel status monitoring signal. The steering wheel status monitoring signal is used to determine the Whether the steering wheel of the vehicle was touched by the driver. The integrated system for preventing drowsiness of a vehicle driver according to claim 4, wherein the processing unit is further used to determine whether the driver is in a drowsy state according to the steering wheel state monitoring signal. The integrated anti-sleepy system for a driver of a vehicle according to claim 1, wherein the rear seat state monitoring unit is a weight sensor and is provided in the rear seat of the vehicle. The vehicle driver's anti-sleepiness integrated system according to claim 1, wherein the seat belt state monitoring unit is a contact switch, which is provided in the rear seat belt of the vehicle. The vehicle driver anti-sleepiness integrated system according to claim 1, wherein the occupant reminding unit is one or a combination of a vibration element, a pronunciation element, or a light-emitting element, and is provided in a rear seat belt of the vehicle. The integrated anti-sleepy system for a vehicle driver according to claim 2, wherein the driver reminding unit is one or a combination of a vibrating element, a sounding element, or a light emitting element, and is disposed on the frame. A vehicle driver anti-sleepy method includes the following steps: providing a vehicle driver anti-sleepy integrated system as in item 1; using the vehicle speed monitoring unit to monitor the vehicle speed and determine whether the vehicle is driving; if it is determined that When the vehicle is running, use the rear seat status monitoring unit to monitor the vehicle's rear seat status and determine whether the vehicle's rear seat has an occupant; if it is determined that the vehicle's rear seat has an occupant, use the seat belt status monitoring unit Monitor the status of the rear seat belt of the vehicle and determine whether the rear seat belt of the vehicle is fastened; if it is determined that the rear seat belt of the vehicle is fastened, use the eye state monitoring unit to monitor the driver ’s eyes State, and determine whether the driver is in a doze state; and if it is determined that the driver is in a doze state, control the driver reminder unit and the occupant reminder unit to send out the The driver reminder signal and the occupant reminder signal.