阅读说明：本技术 疲劳驾驶提醒方法、装置及系统 (Fatigue driving reminding method, device and system ) 是由 胡亮亮 朱志文 倪震 唐杰 许杨中 刘洋 于 2021-06-30 设计创作，主要内容包括：本申请公开了一种疲劳驾驶提醒方法、装置及系统,疲劳驾驶提醒方法包括：获取驾驶员的面部信息；根据所述面部信息判断所述驾驶员是否处于疲劳驾驶；在判断出所述驾驶员处于疲劳驾驶的情况下,发送控制信息至座椅激振器,以使所述座椅激振器与座椅发生第一共振,和/或发送所述控制信息至方向盘激振器,以使所述方向盘激振器与方向盘发生第二共振。(The application discloses a method, a device and a system for reminding fatigue driving, wherein the method for reminding fatigue driving comprises the following steps: acquiring facial information of a driver; judging whether the driver is in fatigue driving according to the facial information; and sending control information to a seat vibration exciter to enable the seat vibration exciter and a seat to generate first resonance under the condition that the driver is judged to be in fatigue driving, and/or sending the control information to a steering wheel vibration exciter to enable the steering wheel vibration exciter and a steering wheel to generate second resonance.)

1. A fatigue driving reminding method is characterized by comprising the following steps:

acquiring facial information of a driver;

judging whether the driver is in fatigue driving according to the facial information;

and sending control information to a seat vibration exciter to enable the seat vibration exciter and a seat to generate first resonance under the condition that the driver is judged to be in fatigue driving, and/or sending the control information to a steering wheel vibration exciter to enable the steering wheel vibration exciter and a steering wheel to generate second resonance.

2. The method of claim 1, wherein the facial information comprises at least one of: the frequency of blinking, eye openness, and frequency of yawning of the driver.

3. A method according to claim 1, wherein after sending control information to a seat exciter to cause a first resonance of the seat exciter with a seat and/or sending the control information to a steering wheel exciter to cause a second resonance of the steering wheel exciter with a steering wheel, the method further comprises:

after the first resonance and/or the second resonance are/is finished, judging whether the driver stops for a rest;

under the condition that the driver does not stop for rest, whether the driver is still in fatigue driving is judged again;

and under the condition that the driver is still in fatigue driving, sending control information to the seat vibration exciter again to enable the seat vibration exciter and the seat to generate third resonance, and/or sending a judgment result to the steering wheel vibration exciter to enable the steering wheel vibration exciter and the steering wheel to generate fourth resonance.

4. The method of claim 3, wherein the third resonance has a vibration speed greater than the first resonance, and the fourth resonance has a vibration speed greater than the second resonance.

5. A fatigue driving warning device, comprising:

the acquisition module is used for acquiring the facial information of the driver;

the judging module is used for judging whether the driver is in fatigue driving according to the facial information;

the transmitting module is used for transmitting control information to a seat vibration exciter to enable the seat vibration exciter and a seat to generate first resonance under the condition that the driver is judged to be in fatigue driving, and/or transmitting the control information to a steering wheel vibration exciter to enable the steering wheel vibration exciter and a steering wheel to generate second resonance.

6. The apparatus of claim 5, wherein the facial information comprises at least one of: the frequency of blinking, eye openness, and frequency of yawning of the driver.

7. The apparatus of claim 5,

the judging module is further used for judging whether the driver stops for a rest or not after the first resonance and/or the second resonance are finished; under the condition that the driver does not stop for rest, whether the driver is still in fatigue driving is judged again;

the sending module is further configured to send control information to the seat vibration exciter again to enable the seat vibration exciter and the seat to generate third resonance and/or send a determination result to the steering wheel vibration exciter to enable the steering wheel vibration exciter and the steering wheel to generate fourth resonance under the condition that the driver is still in fatigue driving, wherein the vibration speed of the third resonance is greater than that of the first resonance, and the vibration speed of the fourth resonance is greater than that of the second resonance.

8. A fatigue driving warning system, the system comprising: the device as claimed in any one of claims 5 to 7, an image acquisition unit for acquiring facial information of a driver, and a vibration reminding unit, wherein the vibration reminding unit comprises a seat exciter mounted on a seat and/or a steering wheel exciter mounted on a steering wheel, and the seat exciter and/or the steering wheel exciter is used for giving a vibration reminding to the driver.

9. A system according to claim 8, wherein the seat exciter is mounted on a track of the seat and/or the steering wheel exciter is mounted on a steering column of the steering wheel.

10. The system of claim 8, further comprising: a first wireless communication unit, a second wireless communication unit, and/or a third wireless communication unit, wherein,

the first wireless communication unit is arranged in the fatigue driving reminding device;

the second wireless communication unit is arranged in the seat vibration exciter;

the third wireless communication unit is arranged in the steering wheel vibration exciter.

Technical Field

The application belongs to the technical field of automobile safety, and particularly relates to a fatigue driving reminding method, device and system.

Background

At present, the phenomenon of fatigue driving of drivers is increasing, and fatigue driving is just one of the main hidden troubles of traffic accidents. Therefore, in view of fatigue driving, many warning devices for fatigue driving are available in the market, and these warning devices can detect whether the driver is in fatigue driving and warn the driver when the driver is in fatigue driving, thereby avoiding traffic accidents caused by fatigue driving.

The existing fatigue driving reminding device mostly reminds a driver of having a rest through a vibrating motor or a Bluetooth earphone type alarm, and the reminding effect of the vibrating motor and the Bluetooth earphone is not good enough, so that the purpose of having a rest for the driver cannot be achieved.

Disclosure of Invention

The embodiment of the application aims to provide a method, a device and a system for reminding fatigue driving, which can effectively remind a driver to have a rest.

In a first aspect, an embodiment of the present application provides a fatigue driving reminding method, including: acquiring facial information of a driver; judging whether the driver is in fatigue driving according to the facial information; and sending control information to a seat vibration exciter to enable the seat vibration exciter and a seat to generate first resonance under the condition that the driver is judged to be in fatigue driving, and/or sending the control information to a steering wheel vibration exciter to enable the steering wheel vibration exciter and a steering wheel to generate second resonance.

In a second aspect, an embodiment of the present application provides a fatigue driving reminding device, including: the acquisition module is used for acquiring the facial information of the driver; the judging module is used for judging whether the driver is in fatigue driving according to the facial information; the transmitting module is used for transmitting control information to a seat vibration exciter to enable the seat vibration exciter and a seat to generate first resonance under the condition that the driver is judged to be in fatigue driving, and/or transmitting the control information to a steering wheel vibration exciter to enable the steering wheel vibration exciter and a steering wheel to generate second resonance.

In a third aspect, an embodiment of the present application provides a fatigue driving reminding system, including: the device of the second aspect, gather the image acquisition unit and the vibration of driver's facial information and remind the unit, wherein, the vibration is reminded the unit and is included seat vibration exciter and/or steering wheel vibration exciter, the seat vibration exciter is installed on the seat, the steering wheel vibration exciter is installed on the steering wheel, the seat vibration exciter and/or the steering wheel vibration exciter be used for to the driver sends the vibration and reminds.

In the embodiment of the application, the face information of the driver is acquired; judging whether the driver is in fatigue driving according to the facial information; and sending control information to a seat vibration exciter to enable the seat vibration exciter and the seat to generate first resonance under the condition that the driver is judged to be in fatigue driving, and/or sending the control information to a steering wheel vibration exciter to enable the steering wheel vibration exciter and a steering wheel to generate second resonance, so that the driver is effectively reminded to have a rest, and traffic accidents caused by fatigue driving are avoided.

Drawings

Fig. 1 is a schematic flow chart of a fatigue driving reminding method according to an embodiment of the present application;

fig. 2 is a schematic structural diagram of a fatigue driving reminding device provided in an embodiment of the present application;

fig. 3 is a schematic structural diagram of a fatigue driving reminding system provided in an embodiment of the present application;

FIG. 4 is a schematic diagram of a seat exciter provided in an embodiment of the present application and mounted on a seat;

fig. 5 is a schematic structural diagram of a steering wheel exciter mounted on a steering wheel according to an embodiment of the present application.

Detailed Description

The technical solutions in the embodiments of the present application will be described clearly below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are some, but not all, embodiments of the present application. All other embodiments that can be derived by one of ordinary skill in the art from the embodiments given herein are intended to be within the scope of the present disclosure.

The terms first, second and the like in the description and in the claims of the present application are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It will be appreciated that the data so used may be interchanged under appropriate circumstances such that embodiments of the application may be practiced in sequences other than those illustrated or described herein, and that the terms "first," "second," and the like are generally used herein in a generic sense and do not limit the number of terms, e.g., the first term can be one or more than one. In addition, "and/or" in the specification and claims means at least one of connected objects, a character "/" generally means that a preceding and succeeding related objects are in an "or" relationship.

The fatigue driving reminding device and method provided by the embodiment of the present application are described in detail below with reference to the accompanying drawings through specific embodiments and application scenarios thereof.

Fig. 1 is a schematic flow chart of a fatigue driving reminding method according to an embodiment of the present application, and as shown in fig. 1, the method 100 includes:

s110: facial information of a driver is acquired.

In the embodiment of the application, before the facial information of the driver is acquired, the facial information of the driver needs to be acquired, and after the acquisition is finished, the acquired facial information of the driver is sent to the fatigue identification unit.

In one possible implementation, the face information may include at least one of: the frequency of blinking, eye openness, and frequency of yawning of the driver.

S120: and judging whether the driver is in fatigue driving or not according to the facial information.

For example, whether the driver is in fatigue driving may be determined according to the blinking frequency of the driver, and when the blinking frequency of the driver exceeds a preset threshold, the driver is determined to be in fatigue driving.

S130: and sending control information to a seat vibration exciter to enable the seat vibration exciter and a seat to generate first resonance under the condition that the driver is judged to be in fatigue driving, and/or sending the control information to a steering wheel vibration exciter to enable the steering wheel vibration exciter and a steering wheel to generate second resonance.

In the embodiment of the application, the resonance theory is utilized, so that the seat vibration exciter and the seat generate first resonance, and the steering wheel vibration exciter and the steering wheel generate second resonance. Specifically, the natural modal frequency exists in the whole vehicle steering wheel and the seat, generally, the first-order constraint modal frequency of the steering wheel is about 40Hz, the first-order constraint modal frequency of the whole vehicle seat track is about 18-22Hz, and by adopting the resonance theory, a vibration exciter, namely a seat vibration exciter and/or a steering wheel vibration exciter, can be mounted on the steering wheel and/or the seat track, the vibration exciting frequency of the seat vibration exciter can be about 20Hz, and the vibration exciting frequency of the steering wheel vibration exciter can be about 40 Hz. When the seat vibration exciter works, the seat vibration exciter and the seat can be caused to generate first resonance, and when the steering wheel vibration exciter works, the steering wheel vibration exciter and the seat can be caused to generate second resonance. Because the buttocks and the back of the driver are in direct contact with the seat and the hands are in direct contact with the steering wheel, when the seat and/or the steering wheel vibrate, the driver can sense the vibration in all directions. In a particular application, the excitation energy of the seat exciter and/or the steering wheel exciter may be adjusted so as to control the vibration acceleration of the first resonance and the second resonance, for example, the vibration velocity of the first vibration may be made 0.1m/s 2, and the vibration velocity of the second vibration may be made 1m/s 2. The vibration acceleration may be set according to specific conditions, and the present application is not particularly limited.

In one possible implementation manner, after sending control information to the seat exciter to enable the seat exciter to generate a first resonance with the seat, and/or sending the control information to the steering wheel exciter to enable the steering wheel exciter to generate a second resonance with the steering wheel, the method may further include: after the first resonance and/or the second resonance are/is finished, judging whether the driver stops for a rest; under the condition that the driver does not stop for rest, whether the driver is still in fatigue driving is judged again; and under the condition that the driver is still in fatigue driving, sending control information to the seat vibration exciter again to enable the seat vibration exciter and the seat to generate third resonance, and/or sending a judgment result to the steering wheel vibration exciter to enable the steering wheel vibration exciter and the steering wheel to generate fourth resonance.

In this possible implementation manner, the duration of the first resonance and/or the second resonance may be set to 30s, and when the first resonance and/or the second resonance is over, and the driver does not stop to rest, the seat exciter and the seat may be caused to generate the third resonance and/or the steering wheel exciter and the steering wheel may be caused to generate the fourth resonance, so as to remind the driver of stopping to rest again.

In one possible implementation manner, the vibration speed of the third resonance may be greater than the vibration speed of the first resonance, and the vibration speed of the fourth resonance may be greater than the vibration speed of the second resonance. Specifically, the excitation energy of the seat exciter and/or the steering wheel exciter may be adjusted, for example, the excitation energy of the seat exciter may be increased by 10 times, so that the vibration acceleration of the third resonance is 1m/s 2, and/or the excitation energy of the steering wheel exciter may be increased by 10 times, so that the vibration acceleration of the fourth resonance is 10m/s 2. At the moment, the vibration felt by the body of the driver is very obvious, so that the body of the driver is obviously uncomfortable, if the driver does not stop the vehicle for rest, the vibration can be continuously generated, so that the driver cannot continue to drive normally, and the purpose of forcing the driver to rest is achieved.

The embodiment of the application adopts a resonance theory, combines the inherent modal frequency attribute of a steering wheel and a seat, reminds a driver by exciting the seat and/or the obvious resonance generated by the steering wheel through a vibration exciter, and can achieve the purpose of double-insurance reminding when the seat vibration exciter and the steering wheel vibration exciter are simultaneously arranged. In addition, two-stage vibration reminding is arranged, and the primary vibration reminding (first vibration and/or second vibration) enables a driver to sense fatigue driving everywhere, so that the driver is reminded to stop for rest. If after the primary vibration reminding is finished, the driver can drive continuously regardless of the vibration reminding, the information of the driver is continuously collected, if the driver is judged to be still in fatigue driving, the excitation energy is improved, the vibration exciter is triggered again to vibrate for reminding again (third vibration and fourth vibration), the body of the driver feels obvious discomfort due to the fact that the steering wheel and the seat guide rail vibrate too much, the vibration is continued all the time, the driver can not drive normally continuously, and timely forced parking and rest are achieved, so that the risk that personal safety is harmed by traffic accidents caused by fatigue driving is effectively reduced.

Fig. 2 is a schematic structural diagram of a fatigue driving reminding device provided in an embodiment of the present application. As shown in fig. 2, the fatigue driving warning apparatus 200 includes:

an obtaining module 210 for obtaining facial information of a driver;

a judging module 220, configured to judge whether the driver is in fatigue driving according to the facial information;

the sending module 230 is configured to send control information to a seat vibration exciter to enable the seat vibration exciter and a seat to generate first resonance and/or send the control information to a steering wheel vibration exciter to enable the steering wheel vibration exciter and a steering wheel to generate second resonance when it is determined that the driver is in fatigue driving.

In one possible implementation, the face information includes at least one of: the frequency of blinking, eye openness, and frequency of yawning of the driver.

In a possible implementation manner, the determining module 220 may be further configured to determine whether the driver stops to have a rest after the first resonance and/or the second resonance is ended; under the condition that the driver does not stop for rest, whether the driver is still in fatigue driving is judged again; the sending module 230 may be further configured to send control information to the seat exciter again to enable the seat exciter and the seat to generate a third resonance, and/or send a determination result to the steering wheel exciter to enable the steering wheel exciter and the steering wheel to generate a fourth resonance, where a vibration speed of the third resonance is greater than a vibration speed of the first resonance, and a vibration speed of the fourth resonance is greater than a vibration speed of the second resonance, when it is determined that the driver is still in fatigue driving.

Fig. 3 is a schematic structural diagram of a fatigue driving reminding system according to an embodiment of the present application, and as shown in fig. 3, the system 300 includes: the driver fatigue driving reminding device comprises a fatigue driving reminding device 200, an image acquisition unit 310 for acquiring facial information of a driver, and a vibration reminding unit 320, wherein the vibration reminding unit 320 comprises a seat vibration exciter 321 and/or a steering wheel vibration exciter 322, the seat vibration exciter 321 is installed on a seat, the steering wheel vibration exciter 322 is installed on a steering wheel, and the seat vibration exciter 321 and/or the steering wheel vibration exciter 322 are used for sending vibration reminding to the driver.

In the embodiment of the present application, the image capturing unit 310 may be an infrared camera, and the infrared camera may capture facial information of the driver in real time, such as the blinking frequency, the eye opening degree, and the yawning frequency of the driver. The device 200 acquires the information output by the image acquisition unit 310 and performs big data analysis on the information to judge whether the driver is in fatigue driving. If the driver is determined to be in fatigue driving, control information is sent to the vibration reminding unit 320 to control the seat vibration exciter 321 and/or the steering wheel vibration exciter 322 to send a vibration reminding to the driver.

In a specific application, the seat exciter 321 and/or the steering wheel exciter 322 may be a miniature single-frequency exciter, and excitation energy of the seat exciter 321 and the steering wheel exciter 322 may be adjustable, so that a resonant acceleration of the seat exciter 321 and the seat and a resonant acceleration of the steering wheel exciter 322 and the steering wheel may be controlled.

In one possible implementation, the seat exciter 321 may be mounted on a rail of the seat, and/or the steering wheel exciter 322 may be mounted on a steering column of the steering wheel. In particular applications, seat exciter 321 and/or steering wheel exciter 322 may be rigidly mounted. As shown in fig. 4, the seat exciter 321 is mounted on a rail of the seat, and when the seat exciter 321 is operated, the vibration acceleration at the position where the seat exciter 321 is mounted in fig. 4 is the resonance acceleration of the seat exciter 321 and the seat, and the vibration acceleration at other positions of the seat is reduced accordingly. As shown in fig. 5, the steering wheel exciter 322 is mounted on the steering column of the steering wheel, and when the steering wheel exciter 322 is operated, the vibration acceleration at the 12 o' clock direction position of the steering wheel is the resonance acceleration of the steering wheel exciter 322 and the steering wheel, and the vibration acceleration at other positions of the steering wheel is reduced accordingly.

In a possible implementation manner, the system 300 further includes a first wireless communication unit 331, a second wireless communication unit 332, and/or a third wireless communication unit 333, wherein the first wireless communication unit 331 is disposed in the apparatus 200; the second wireless communication unit is arranged in the seat vibration exciter 321; the third wireless communication unit is disposed in the steering wheel exciter 322.

In a specific application, the first wireless communication unit 331 may be integrated into the apparatus 200, and the first wireless communication unit 331 may be configured to transmit control information of the apparatus 200 to the second wireless communication unit 332 and/or the third wireless communication unit 333; the second wireless communication unit 332 may be integrated in the seat vibration exciter 321, and the second wireless communication unit 332 may be configured to receive the control information and trigger the seat vibration exciter 321 to operate; a third wireless communication unit 333 is integrated in the steering wheel exciter 322, and the third wireless communication unit may be configured to receive the control information and trigger the operation of the steering wheel exciter 322.

The fatigue driving reminding system according to the embodiment of the present application can enable the image acquisition unit 310 to acquire facial information of a driver by providing the device 200, the image acquisition unit 310, the seat exciter 321 and/or the steering wheel exciter 322 according to any one of claims 5 to 7, the device 200 determines whether the driver is in fatigue driving according to the facial information, when the driver is in fatigue driving, the device 200 sends control information to the seat exciter 321 and/or the steering wheel exciter 322 to enable the seat exciter 321 and/or the steering wheel exciter 322 to operate, and the seat exciter 321 and/or the steering wheel exciter 322 vibrate the seat and/or the steering wheel by using a resonance principle, so as to effectively remind the driver to rest and avoid traffic accidents.

While the present embodiments have been described with reference to the accompanying drawings, it is to be understood that the invention is not limited to the precise embodiments described above, which are meant to be illustrative and not restrictive, and that various changes may be made therein by those skilled in the art without departing from the spirit and scope of the invention as defined by the appended claims.