TWI590203B - Wearable smart eyeglasses system for dozing warning - Google Patents

Description

Wearable smart glasses sleepy warning vehicle system

The invention relates to a wearable smart glasses sleep warning vehicle system, in particular to a smart glasses vehicle system for detecting the interval between opening and closing of a driver's eyes by a light sensor, and capable of issuing a warning signal to the buzzer Alert the driver and control the vehicle to slow down, flash the warning light and open the window to avoid a car accident when the driver is asleep.

According to the development of the industrial revolution, the first generation of automobiles has undergone considerable changes and progress since its inception. People’s pursuit of speed has led to the development of engines and bodies for various car manufacturers. Improvement has promoted the rapid development of the automobile industry. However, nowadays, people no longer only pay attention to the performance and speed of vehicles, and gradually pay more attention to the comfort and safety of vehicles. Suspension systems and braking systems have become the focus of vehicle development. The development of the brake system enables the vehicle to generate a large amount of friction to stop the vehicle, but the excessive braking force will cause the vehicle to be out of control. Therefore, in recent years, the automobile industry has focused more on the development of electronic auxiliary systems. Combined with electronic circuits, using various detection methods and protective measures, the driver has a higher chance of survival in the event of an accident. In addition, in addition to the protection measures at the time of the accident, it is more important to prevent the occurrence of a car accident. Damage is reduced to a minimum.

In order to prevent car accidents, you must first understand the cause of the car accident. Usually, the accident will occur during the high-speed travel of the vehicle, so the driver must stay awake while driving. And a high degree of concentration, to respond to the sudden situation between the roads at any time, and according to the statistics of the Ministry of Communications of the Republic of China, the distraction or fatigue of the driver accounted for about 20% of the cause of the accident. It can be seen that the driver is in the car. The concentration of driving is very important. The occurrence of a car accident is often in the blink of an eye. Once distracted, it may cause a car accident, which not only affects its own safety, but also causes other passers-by.

For the part of distraction and fatigue driving, there is a system for warning when the driver is fatigued. The Republic of China Patent Bulletin No. TW M512526 U "Fatigue Driving Monitoring Device" discloses that the detecting device is placed on a seat belt or a steering wheel. Monitor the driver's breathing condition and the changes in the hands' contact with the steering wheel force to analyze the driver's usual driving habits, determine whether the driver is fatigued, and can be sent by a buzzer or a light-emitting diode. Alert the sound or light to alert the driver. Further, the Republic of China Patent Publication No. TW 201535330 A "Optical glasses and an alarm system having the same" discloses that the detecting device is disposed on the glasses, and the image of the driver's eye can be continuously photographed to determine the driver's eye diagram. Whether there is a change, and whether the number of blinks is higher than a preset value, thereby judging whether the driver is in a state of fatigue, and an alarm sounds to alert the driver.

In addition, the Chinese Patent Publication No. CN 204632055 U "an eyeglass type high-efficiency anti-fatigue driving device" discloses a device for detecting whether a driver is fatigued by using a slider mechanism, and the driver needs to attach a U-shaped ear clip to the ear, and recognizes that When the driver is tired, the heating coil of the U-shaped ear clip starts to heat up, and the movement of the slider will make the driver feel the heat and pain, but the detection method of the slider mechanism may be caused by the driver's movement. Causes detection errors. As can be seen from the above-mentioned prior patents, there are many ways to deal with fatigue driving; however, the wind-cutting sound generated during driving of the car and the noise generated by the chassis and the road surface are quite noisy, and it is not easy to wake up only by using the warning sound system. The lack of the driver, and the use of the light of the light-emitting diode to remind the driver will also cause the eyes to be stimulated by the light, but have the disadvantage of possibly inducing other dangers. Therefore, providing good detection The method of measurement and the appropriate reminder device are the directions that the inventors want to explore.

Nowadays, the inventor is considering that the above-mentioned existing sleepiness warning vehicle system still has many defects in actual implementation, so it is a tireless spirit and is supplemented by its rich professional knowledge and years of practical experience. Improvements have been made and the present invention has been developed based on this.

The main purpose of the present invention is to provide a wearable smart glasses sleep warning vehicle system, which is a smart glasses vehicle system that detects the interval between opening and closing of a driver's eyes by a light sensor, and can issue a warning signal to alert the buzzer. The driver can control the vehicle to slow down, flash the warning light and open the window to prevent the driver from having a car accident while sleeping.

In order to achieve the above-mentioned implementation, the present invention relates to a wearable smart glasses sleepiness warning vehicle system, which includes a smart glasses, including a light sensor, a microprocessor electrically connected to the light sensor, and a power module. The photo sensor detects the interval between the driver's eyes opening and closing. If the photo sensor detects that the interval is more than 1 second, the microprocessor outputs a warning signal; a car infotainment system (In-Vehicle Infotainment system) ), receiving a warning signal and having a buzzer to alert the driver; an on-board diagnostic system (OBDII-bridge) electrically connecting the vehicle infotainment system to receive the warning signal; and a controller area network (CAN bus), electrically connected to the OBDII-bridge and receives warning signals to control vehicle deceleration, flashing warning lights and opening the window.

In an embodiment of the invention, the car infotainment system further includes a mobile network to upload the alert signal to the cloud storage.

In an embodiment of the invention, the microprocessor and the car infotainment system have a built-in Bluetooth to output and receive warning signals.

In one embodiment of the invention, the Bluetooth system can be, for example, a Bluetooth Low Energy with a frequency of 2.4 GHz.

In an embodiment of the invention, the photo sensor can comprise, for example, an infrared light emitting diode, an optical filter, and a photoelectric crystal.

In an embodiment of the invention, the infrared light emitting diode system emits infrared invisible light having a wavelength of, for example, 950 nm.

In an embodiment of the present invention, the power module may include, for example, a transformer electrically connected to the photo sensor, a secondary battery electrically connected to the transformer, and a charging unit electrically connected to the secondary battery.

In an embodiment of the present invention, the vehicle entertainment information system has a function of displaying information such as fuel consumption, tire pressure, water tank temperature, vehicle speed, rotational speed, and battery voltage.

(1)‧‧‧Smart glasses

(11)‧‧‧Light sensor

(12)‧‧‧Microprocessor

(13)‧‧‧Power Module

(2) ‧‧‧Car infotainment system

(3)‧‧‧OBDII-bridge

(4) ‧‧‧Controller Area Network

First Figure: Architecture diagram of a preferred embodiment of the present invention

Second: a perspective view of a smart glasses according to a preferred embodiment of the present invention

Third Figure: Architecture connection block diagram of a preferred embodiment of the present invention

Fourth Figure: Startup flow chart of a preferred embodiment of the present invention

Fifth: detection flow chart of a preferred embodiment of the present invention

Figure 6 is a flow chart of the operation of the infotainment system for a vehicle according to a preferred embodiment of the present invention

Figure 7: Voltage line diagram of a preferred embodiment of the present invention

Figure 8: Signal transmission diagram of a preferred embodiment of the present invention

The object of the present invention and its structural and functional advantages will be explained in conjunction with the specific embodiments according to the structure shown in the following drawings, so that the reviewing committee can have a more in-depth and specific understanding of the present invention.

Referring to the first to third figures, the wearable smart glasses sleepiness warning vehicle system is capable of being used between vehicles, and includes a smart glasses (1) including a light sensor (11), Electrically connected to one of the microprocessor (12) and the power module (13), wherein the power module (13) is to provide the entire wisdom The power source of the type glasses (1), the light sensor (11) detects the interval between the driver's eyes opening and closing, and if the light sensor (11) detects an interval of more than 1 second, the microprocessor (12) Output a warning signal; a car infotainment system (2) receives a warning signal and has a buzzer to alert the driver; an OBDII-bridge (3), electrically connected to the car infotainment system (2 To receive the warning signal; and a controller area network (4) (CAN bus), electrically connect OBDII-bridge (3) and receive warning signals to control vehicle deceleration, flashing warning lights and opening the window.

Among them, the car infotainment system further includes a mobile network to upload warning signals to the cloud storage, complete recording of fatigue information; the microprocessor (12) and the car infotainment system (2) have a built-in frequency 2.4GHz low-power Bluetooth Low Energy for outputting and receiving warning signals; and the photo sensor (11) can include, for example, an infrared light-emitting diode, an optical filter, and a photoelectric crystal, infrared The light emitting diode can emit an infrared invisible light, which can be, for example, a wavelength of 950 nm; the power module (13) can include, for example, a transformer electrically connected to the light sensor (11) and a second electrical connection transformer. The battery and a charging unit electrically connected to the secondary battery provide the power required by the overall circuit by the secondary battery, and the charging unit can be connected to the external power source to charge the secondary battery; the vehicle entertainment information system has a display, for example The function of fuel consumption, tire pressure, water tank temperature, vehicle speed, speed and battery voltage.

In addition, the scope of the invention may be further exemplified by the following specific examples, which are not intended to limit the scope of the invention.

Please refer to the fourth to eighth diagrams. First, the driver first turns on the switch of the smart glasses (1), the system will start and stand by. When the initial button is pressed, the preparation process will start, and the driver's When the voltage of the eye is closed for 1 second, the infrared illuminating diode in the photo sensor (11) emits infrared opaque light having a wavelength of 950 nm to the eyelid of the driver, and is reflected onto the photoelectric crystal to sense the reflected brightness and then output the voltage. , wherein the optical filter can help the photoelectric crystal filter out other wavelengths of light and improve the photoelectric crystal Anti-noise ability, after 12 times of repeated detection, the average voltage value is 2.048V, then the average voltage value is transmitted to the car infotainment system (2) by the microprocessor (12), internal The buzzer will sound to inform the driver that the recording is complete. In addition, when the light sensor (11) detects the closed eye voltage for 12 times, it also detects the voltage value when the eye is opened, and the average voltage value is 1.686V. Since the infrared light is irradiated on the pupil when the eye is opened, it is almost The all-black pupil reduces the infrared light that is reflected to the photo-electric crystal. Therefore, the output voltage value when the eye is opened is relatively low when the eye is closed.

When the car infotainment system (2) records the average voltage value, the driver presses the button again, and the worn smart glasses (1) begin to enter the mode of detecting fatigue, and the driver can drive on the road. And continuously detect the driver's eye voltage value to know that the current eye system is in an open or closed state. If the output voltage of the light sensor (11) is higher than the average value of 2.048V, the driving will be judged again. If the person closes his eyes for more than 1 second, the voltage value will remain above the average value when the eyes are not open, that is, when it is determined that fatigue driving, the microprocessor (12) immediately outputs a warning signal to the vehicle through the Bluetooth. With the infotainment system (2); when it is determined that the driver is not in fatigue driving, the voltage value of the eye is continuously detected by the light sensor (11).

Furthermore, the original car infotainment system (2) is in standby mode and can display various data such as fuel consumption, tire pressure, water tank temperature, vehicle speed, speed and battery voltage when the vehicle is traveling, when the built-in blue When the bud receives the warning signal, it will immediately make the buzzer sound an alarm to alert the driver. Further, the warning signal will be uploaded to the cloud storage by the mobile information entertainment system (2) mobile network to record the driver. The fatigue driving situation, as well as the transmission of warning signals to the vehicle's controller area network (4) via OBDII-bridge(3), which can control all the electronic devices on the vehicle, so when it is currently judged that there is a danger of fatigue driving, Actively control the vehicle to open the window, let the wind outside the car flow into the car to make the driver awake, and at the same time control the electronic throttle of the vehicle to gradually slow down, and can flash the warning light of the vehicle to remind the rear of the car to pay attention The surrounding vehicles know that there is a problem with the car and reduce the danger of other passers-by.

It can be seen from the above description that the present invention has the following advantages compared with the prior art:

1. The wearable smart glasses of the present invention is used to detect the opening and closing state of the driver's eyes, and the infrared light of the light sensor is used to illuminate the eyelids or the pupils, and the average voltage value of the output is used as a reference for judging fatigue driving. Compared with the previous fatigue detection method, it is more accurate, and the space occupied by the photo sensor is relatively small.

2. The wearable smart glasses sleepy warning vehicle system of the present invention, the connected OBDII-bridge can drive the controller area network to achieve the functions of controlling vehicle deceleration, flashing warning lights and opening the window, etc., compared with the previous use only Sound, lighting, or other means is a new way, and it is more of a reminder to tired drivers, but it can also be noticed by passers-by around to reduce the chance of a car accident.

In summary, the wearable smart glasses sleepiness warning vehicle system of the present invention can achieve the intended use efficiency by the above disclosed embodiments, and the present invention has not been disclosed before the application, and the company has fully complied with the patent. The rules and requirements of the law.爰Issuing an application for a patent for invention in accordance with the law, and asking for a review, and granting a patent, is truly sensible.

The illustrations and descriptions of the present invention are merely preferred embodiments of the present invention, and are not intended to limit the scope of the present invention; those skilled in the art, which are characterized by the scope of the present invention, Equivalent variations or modifications are considered to be within the scope of the design of the invention.

(1)‧‧‧Smart glasses

(2) ‧‧‧Car infotainment system

(3)‧‧‧OBDII-bridge

(4) ‧‧‧Controller Area Network

Claims (8)

A wearable smart glasses sleepiness warning vehicle system includes: a smart eyeglass, comprising a light sensor, a microprocessor electrically connected to the light sensor, and a power module, wherein the light sensor The device detects the interval between the driver's eyes opening and closing. If the photo sensor detects that the interval is more than 1 second, the microprocessor outputs a warning signal; an In-Vehicle Infotainment system Receiving the warning signal and having a buzzer to alert the driver; an on-board diagnostic system (OBDII-bridge) electrically connecting the vehicle infotainment system to receive the warning signal; and a controller area The CAN bus is electrically connected to the on-board diagnostic system (OBDII-bridge) and receives the warning signal to control the vehicle to slow down, flash the warning light and open the window. The wearable smart glasses sleep warning in-vehicle system of claim 1, wherein the car infotainment system further comprises a mobile network to upload the alert signal to the cloud storage. The wearable smart glasses sleep warning vehicle system according to claim 1, wherein the microprocessor and the car infotainment system have a built-in blue chip for outputting and receiving the warning signal. The wearable smart glasses sleep warning vehicle system according to claim 3, wherein the Bluetooth low energy Bluetooth Low Energy has a frequency of 2.4 GHz. The wearable smart glasses sleepiness warning vehicle system according to claim 1, wherein the light sensor comprises an infrared light emitting diode, an optical filter and a photoelectric crystal. The wearable smart glasses sleepiness warning on-vehicle system according to claim 5, wherein the infrared light emitting diode system emits infrared invisible light having a wavelength of 950 nm. The wearable smart glasses sleepiness warning vehicle system according to claim 1, wherein the power module comprises a transformer electrically connected to the photo sensor, a secondary battery electrically connected to the transformer, and a battery The charging unit of the secondary battery is electrically connected. The wearable smart glasses sleep warning vehicle system according to claim 1, wherein the vehicle entertainment information system has the functions of displaying fuel consumption, tire pressure, water tank temperature, vehicle speed, rotation speed and battery voltage.