KR102063881B1 - accident-preventing helmet and driving method thereof - Google Patents

Abstract

A road driving accident prevention helmet according to an embodiment of the present invention comprises: a main body worn on the head of a user; a first sensing unit for sensing an object located at a predetermined distance from the side and rear of the main body through an optical wavelength; an impact detection unit that detects impact applied to the main body; a second sensing unit which senses an acceleration value of biaxial movement of the main body; MCU for generating signal information according to detection information sensed by the first detection unit, the impact detection unit, and the second detection unit; and a display unit provided on the rear surface of the main body and displaying signal information generated by the MCU. According to an embodiment of the present invention, there is an advantage of preventing the occurrence of collision accident.

Description

Road Accident Prevention Helmet and its operation method {accident-preventing helmet and driving method

It relates to a road accident accident prevention helmet and its operation method.

When a motorcyclist or a bicycle rides on the road, the driver who approaches the vehicle is not aware of the existence of the motorcycle or the bicycle, and it is very likely to cause a serious accident such as a collision, a crash of the occupant, or serious injury. In fact, more than half of motorcycle or bicycle accidents occur at night.

Motorcycles and bicycles, which are one of the pillars of transportation and transportation, are actually attracting attention as alternative transportation and leisure industries in the low-growth high oil price era. It is used.

However, more than 70% of head injuries are caused by motorcycle or bicycle injuries, and mandatory to wear a hard hat.

On the other hand, the conventional two-wheeled safety helmet or inline skate safety helmet simply has a function to protect the wearer's head in the event of an accident, there is no means to alert the approaching motorists, etc. from the outside, the car or other traffic It was very vulnerable to collision with Sudan and collision.

As a result, during the day and night driving of smart personal mobility such as electric kickboards, electric wheels, motorcycles, and bicycles, motorists approaching from behind easily recognize the presence of motorcycles and bicycles, thus preventing traffic accidents caused by collisions or collisions. To prevent this problem, a means to ensure a sufficient safety distance is needed.

Republic of Korea Patent Publication No. 10-2015-0042065

The problem to be solved by the present invention is to provide a road driving accident prevention helmet and its operation method that can solve the conventional problems.

Road driving accident prevention helmet according to an embodiment of the present invention for solving the problem is a helmet body worn on the head of the user; An object detecting unit detecting an object located at a predetermined distance from the side and the rear of the helmet main body; An impact sensor configured to detect an external impact amount and an internal impact amount of the helmet main body; An acceleration sensor for sensing an acceleration value of three-axis movement of the helmet main body; MCU for generating feedback information corresponding to the sensing information detected by each of the object detecting unit, the impact detecting unit, and the acceleration detecting unit: a display unit provided on a rear surface of the helmet body and displaying the feedback information; A vibration unit provided in the helmet body and vibrating based on the feedback information; And an alarm unit provided in the helmet body and outputting a warning sound based on the feedback information, wherein the MCU moves the head of the helmet wearer from the first position to the second position through the acceleration detected by the acceleration detection unit. After the movement, if it is maintained for a predetermined time, the determination result signal that is recognized as a situation only forward front state is provided to the display unit, the vibration unit, the alarm unit, based on the intensity of the scan signal output from the object detection unit Providing display information (flashing signal and voice signal) for confirming the position of the Helvet wearer to the display unit and the alarm unit, and when the detection information of the impact detector or the acceleration detector exceeds a preset value, Characterized by requesting the communication unit to send the location information and emergency call signal to the terminal.

The operation method of the road accident accident helmet according to an embodiment of the present invention for solving the problem is an object located at a predetermined distance from the accident prevention helmet, the amount of impact applied to the accident prevention helmet and the movement of the accident prevention helmet Sensing acceleration; In the MCU of the accident prevention helmet, feedback information is generated according to the type of detection information detected by each of the object detection unit, the impact detection unit, and the acceleration detection unit, the number of the detection information, and the detection order of the detection information. Providing at least one of eastern; And operating based on the feedback information in the display unit, the alarm unit, and the vibration unit, wherein the MCU moves the head of the helmet wearer to the second position at the first position through the acceleration detected by the acceleration detection unit. After moving to a position, if it is maintained for a predetermined time, the determination result signal recognized as a forward circumstance only condition is provided to the display unit, the vibration unit, and the alarm unit, and the intensity of the scan signal output from the object detection unit is applied. Providing display information (flashing signal and voice signal) for confirming the position of the Hevett wearer to the display unit and the alarm unit based on the detection information, and the detection information of the impact detector or the acceleration detector exceeds a preset value. The external terminal may request the communication unit to send the location information and the emergency call signal.

A wearer wearing a road accident prevention helmet according to an embodiment of the present invention has an advantage of preventing collision accidents due to negligence when driving a smart personal mobility.

In addition, by displaying a variety of pattern information of the driving state of the wearer to the external driver visually, by indicating whether the collision between the external driver and the wearer, there is an advantage that can prevent the occurrence of a crash.

In addition, it is determined whether an accident occurs through the motion of the helmet wearer, and if an accident occurs, by providing an emergency rescue message or emergency rescue request to an external terminal or an external server, there is an advantage that it is possible to prompt first aid even after an accident.

1 is an exemplary view showing a road driving accident prevention helmet according to an embodiment of the present invention.
Figure 2 is a block diagram showing the detailed configuration of the road accident prevention helmet shown in FIG.
3 is a flowchart illustrating an operation method of a road driving accident prevention helmet according to an embodiment of the present invention.
4 to 7 are flowcharts illustrating examples of various operation patterns of the process S720 illustrated in FIG. 3.

DETAILED DESCRIPTION Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings so that those skilled in the art may easily implement the present invention. As those skilled in the art would realize, the described embodiments may be modified in various different ways, all without departing from the spirit or scope of the present invention.

In order to clearly describe the present invention, parts irrelevant to the description are omitted, and like reference numerals designate like elements throughout the specification. In addition, some embodiments of the invention will be described in detail with reference to exemplary drawings. In adding reference numerals to components of each drawing, the same components may have the same reference numerals as much as possible even though they are shown in different drawings. In addition, in describing the present invention, when it is determined that the detailed description of the related well-known configuration or function may obscure the gist of the present invention, the detailed description may be omitted.

In describing the components of the present invention, terms such as first, second, A, B, (a), and (b) can be used. These terms are only to distinguish the components from other components, and the terms are not limited in nature, order, order or number of the components. If a component is described as being "connected", "coupled" or "connected" to another component, that component may be directly connected to or connected to that other component, but between components It is to be understood that the elements may be "interposed" or each component may be "connected", "coupled" or "connected" through another component.

delete

In addition, in the implementation of the present invention may be described by subdividing the components for convenience of description, these components may be implemented in one device or module, or one component is a plurality of devices or modules It can also be implemented separately.

Or less, on the basis of the accompanying drawings will be described in more detail the road driving accident prevention helmet and its operation method according to an embodiment of the present invention.

1 is an exemplary view of a road driving accident prevention helmet according to an embodiment of the present invention, Figure 2 is a block diagram showing a detailed configuration of the road driving accident prevention helmet shown in FIG.

As shown in Figure 1 and 2, the road accident prevention helmet 100 according to an embodiment of the present invention can be used as a variety of helmets for wearing for motorbikes, cycles, outdoor leisure.

The road accident prevention helmet 100 is the main body 110, the object detection unit 120, the shock detection unit 130, the acceleration detection unit 140, MCU 150, the display unit 160 and the communication unit 170 It may include.

The helmet body 110 may be configured to be worn to protect the user's head from an external impact.

The helmet body 110 may be manufactured in a double structure including an outer shell and an inner shell. The outer shell is molded of high strength plastic, and the inner shell is made of mixed materials such as FRP, aramid fiber, pulley ethylene fiber, vinyl cone, and carbon fiber.

The object detecting unit 120 detects an object located at a predetermined distance from the side and the rear of the helmet body 110 through ultrasonic waves.

The object detecting unit 120 may be located in an insertion hole formed in the front, side, and rear of the helmet body 110.

The object detecting unit 120 emits an ultrasonic wave having a predetermined frequency (period), and receives the reflected ultrasonic wave that the ultrasonic wave hits the object and returns, and detects the object by measuring the interval between the transmitting time and the receiving time of the ultrasonic wave. do.

The object detecting unit 120 includes a signal transmitting and receiving unit and a distance calculation unit.

The signal transceiver may include at least one of an ultrasonic wave and a radar radar, but is not limited thereto. In addition, the signal transceiver generates a transmission signal having a frequency, it may be selected as a high sensitivity frequency for object detection. For reference, the present disclosure describes the signal transmitter as an ultrasonic sensor for convenience of description. Here, the frequency of the ultrasound may be 40kHz to 50kHz.

In this case, the signal transmitter may generate a transmission signal having two or more different frequencies. That is, by alternately generating transmission signals having different frequencies, frequency transmission signals having a specific pattern may be radiated.

On the other hand, the signal transmission and reception unit emits a frequency transmission signal to the surroundings, and receives the reflection signal reflected by the frequency transmission signal reflected on the object.

In this case, a pulse-echo method is generally used as a method for measuring the distance. That is, the distance between the object and the helmet can be calculated by measuring a time interval t between the time of transmitting the transmission signal and the time of receiving the reflected signal from the signal transmission receiver, and the distance between the object and the helmet is expressed by the equation L = (t * υs) / 2. It can be represented as.

Here, t is the time interval of the transmission and reception signal, υs is the propagation speed of the transmission signal in the air, so the distance L between the helmet and the object is repeatedly measured using the above equation, whereby the position of the object around the helmet is measured in real time. Can be detected.

Meanwhile, the receiver of the signal transceiver may convert an ultrasonic wave received signal into an electrical signal. The receiver may be formed by combining a plurality of transducer elements, and when an ultrasonic signal is emitted to the object by the transducer, if an interface having different acoustic impedances exists during the radio wave every day, reflection occurs at the interface. This will occur. At this time, part of the signal is transmitted, and if there are several interfaces, echoes are sequentially reflected and returned. The reflected echo returns a pressure on the piezoelectric element of the transducer and generates an electric field proportional to the echo intensity, thereby converting the electrical signal into a scan signal.

Next, the shock detection unit 130 detects the shock applied to the outside and the inside of the helmet body 110 through a force sensor. Therefore, the force sensor of the impact sensor 130 may be mounted on the outer shell and the inner shell of the helmet body, respectively.

The shock detector 130 may detect the external shock applied to the helmet body 110 and the internal shock applied to the helmet body, and calculate and provide a difference between the external shock and the internal shock.

Next, the acceleration sensor 140 detects the acceleration value of the two-axis movement of the helmet body 110.

The acceleration detecting unit 140 is a three-axis acceleration sensor, and measures the acceleration according to the movement of the helmet body. At this time, the movement signal of the helmet body may include the position values of the x, y, z axis and the angle values of alpha, beta, gamma.

The MCU 150 generates signal information according to the sensing information detected by the object detector 120, the shock detector 130, and the acceleration detector 140.

The MCU 150 determines the head movement and position of the helmet wearer based on the acceleration detected by the acceleration detector 140, and provides display information and / or voice information corresponding to the determination result signal.

For example, when the head movement of the helmet wearer is maintained for more than 3 seconds in the (x, -z) direction, the MCU 150 outputs a determination result signal recognized as a situation in frontal appearance, and the determination result signal is described below. It is output as a flashing signal, a flashing signal, a vibration signal and an alarm signal through the vibration unit and the alarm unit.

In addition, the MCU 150 may generate display information according to a result detected by each sensing unit, or may generate emergency display information and an emergency message call request signal based on at least two detection results.

For example, the MCU 150 may display display information (for example, a flashing signal and a voice signal) for identifying the position of the helmet wearer in the vicinity based on the strength of the scan signal output from the object detecting unit 120. And alarm unit.

In addition, when the difference between the external shock and the internal shock detected by the shock detection unit 130 exceeds the standard shock amount, the MCU 150 requests an emergency call message or a communication unit to describe an emergency call as described below, Display information (for example, a blinking signal) for informing the situation is provided to a display unit described later.

In addition, when the acceleration detected by the acceleration sensing unit 140 exceeds the reference acceleration, the MCU 150 may request an emergency call message transmission or an emergency call to a communication unit to be described later.

The display unit 160 is provided on the rear of the helmet body 110 and displays a character and a shape corresponding to the determination signal generated by the MCU 150.

The display unit 160 provides display information or instruction information for confirming the physical condition of the accident prevention helmet wearer to the driver or pedestrian in front and rear.

The display unit 160 may emit light having a color and shape set in at least one direction, preferably, front and rear of the user at night or during a disaster.

In addition, the display unit 160 may include a liquid crystal display (LCD), a thin film transistor liquid crystal display (TFT LCD), an organic light-emitting diode (OLED), and a flexible display. The display device may include at least one of a flexible display, a 3D display, an e-ink display, and a light emitting diode (LED).

The communication unit 170 transmits the user's location information and emergency call signal to an external terminal and / or an external server when the detected information of the shock detector 130 or the acceleration detector 140 exceeds a preset value. .

The communication unit 170 includes a GPS transceiver 171 and a mesh transmission unit 172. The GPS transceiver 171 is embedded in the helmet body 110 and provides location information of the user wearing the helmet body 110 through the approval of the MCU.

The message transmitter 172 transmits an emergency call message based on the message transmission request signal output from the MCU 150.

In addition, the communication unit 170 disclosed herein communicates with any component inside or any at least one terminal outside via a wired / wireless communication network.

In this case, the external arbitrary terminal may include a server (not shown), another terminal (not shown), and the like. Here, the wireless Internet technologies include a wireless LAN (WLAN), a digital living network alliance (DLNA), a wireless broadband (Wibro), a WiMAX (World Interoperability for Microwave Access: Wimax), and an HSDPA (High Speed Downlink Packet Access). ), HSUPA (High Speed Uplink Packet Access), IEEE 802.16, Long Term Evolution (LTE), Long Term Evolution-Advanced (LTE-A), Wireless Mobile Broadband Service (WMBS), etc. In this case, the communication unit 170 transmits and receives data according to at least one wireless Internet technology in a range including the Internet technologies not listed above. In addition, near field communication technologies include Bluetooth, Radio Frequency Identification (RFID), Infrared Data Association (IrDA), Ultra Wideband (UWB), ZigBee, and Near Field Communication (NFC). Ultrasound Communication (USC), Visible Light Communication (VLC), Wi-Fi, Wi-Fi Direct, and the like may be included. In addition, the wired communication technology may include power line communication (PLC), USB communication, Ethernet, serial communication, serial communication, optical / coaxial cable, and the like.

In addition, the communication unit 170 may mutually transmit information with an arbitrary terminal through a universal serial bus (USB).

In addition, the communication unit 170 may be a technical standard or a communication method for mobile communication (for example, Global System for Mobile communication (GSM), Code Division Multi Access (CDMA), Code Division Multi Access 2000 (EVD2000), EV). Enhanced Voice-Data Optimized or Enhanced Voice-Data Only (DO), Wideband CDMA (WCDMA), High Speed Downlink Packet Access (HSDPA), High Speed Uplink Packet Access (HSUPA), Long Term Evolution (LTE), LTE-A (Long Term Evolution-Advanced) and the like to transmit and receive a radio signal with the base station, the server, the other terminal and the like on a mobile communication network.

3 is a flowchart illustrating an operation method of a road driving accident prevention helmet according to an embodiment of the present invention.

As shown in Figure 3, the operation method of the road driving accident prevention helmet (S700) according to an embodiment of the present invention, first, detecting the object located at a predetermined distance from the accident prevention helmet, the amount of impact applied to the accident prevention helmet And it detects the acceleration according to the movement of the accident prevention helmet (S710).

Subsequently, feedback information according to the type of sensing information detected by the object detecting unit 120, the impact detecting unit 130, and the acceleration detecting unit 140, the number of sensing information, and the sensing order of the sensing information is detected by the MCU 150. When the display unit 160, the alarm unit 180, and the vibration unit 190 are provided to at least one or more (S720), the display unit, the alarm unit, and the vibration unit may operate based on the feedback information (S730). ) Process.

The feedback information may include at least one of a blinking pattern of the display unit 160, color information, a vibration pattern of the vibration unit 190, a vibration intensity, an alarm pattern of the alarm unit 180, and an alarm intensity. .

The S720 process includes an emergency call message or request information requesting an emergency call when the difference between the external shock amount and the internal shock amount detected by the shock detector 130 in the MCU 150 exceeds the reference shock amount, referring to FIG. 4. It may include a process of generating feedback information.

In addition, in the S720 process, the motion value including the head movement and the position of the helmet wearer of the helmet wearer is determined based on the acceleration detected by the acceleration detector 140 in the MCU 150, and the motion of the user is stopped. When the time exceeds the set value, any one or more of the display unit, the alarm unit, and the vibration unit is controlled to output the display information and / or the voice information and / or the vibration information.

For example, when the head movement of the helmet wearer is maintained for more than 3 seconds in the (x, -z) direction, the MCU 150 outputs a determination result signal recognized as a situation in frontal appearance, and the determination result signal is described below. It is output as a flashing signal, a flashing signal, a vibration signal and an alarm signal through the vibration unit and the alarm unit.

6, the difference between the external shock and the internal shock detected by the shock detector 130 in the MCU 150 exceeds the reference shock amount, and the acceleration detected by the acceleration detector 140 refers to FIG. 6. A motion value including a head movement and a position of a helmet wearer, and a feedback including an emergency call message corresponding to the pattern or request information requesting an emergency call when the time at which the user's motion is stopped exceeds a set value; Generating information to control the operation of the display unit, the vibrator unit, and / or the alarm unit.

In the S720 process, referring to FIG. 7, the type of sensing information detected by each of the object detecting unit 120, the shock detecting unit 130, and the acceleration detecting unit 140 in the MCU 150, the number of detecting information, and the like. After generating feedback information according to the sensing order of sensing information and providing the feedback information to at least one of the display unit 160, the alarm unit 180, and the vibrator 190, the feedback from the display unit, the alarm unit, and the vibration unit is performed. It may include a process of operating based on the information.

Therefore, the use of the road driving accident prevention helmet according to an embodiment of the present invention, there is an advantage that can be prevented in advance accidents due to inadvertent driving, such as the negligence of the front of the wearer of the accident prevention helmet during road driving.

Those skilled in the art to which the present invention pertains will understand that the present invention can be implemented in other specific forms without changing the technical spirit or essential features. Therefore, the above-described embodiments are to be understood as illustrative and not restrictive in all respects, and the scope of the present invention is indicated by the appended claims rather than the foregoing description, and the meaning and scope of the claims and All changes or modifications derived from the equivalent concept should be interpreted as being included in the scope of the present invention.

100: road accident helmet
110: helmet body
120: object detection unit
130: shock detection unit
140: acceleration detection unit
150: MCU
160: display unit
170: communication unit
171: GPS transceiver
172: message transmission unit
180: alarm unit
190: vibration unit

Claims (9)

A helmet body worn on the head of the user;
An object detecting unit detecting an object located at a predetermined distance from the side and the rear of the helmet main body;
An impact sensor configured to detect an external impact amount and an internal impact amount of the helmet main body;
An acceleration sensor for sensing an acceleration value of three-axis movement of the helmet main body;
MCU for generating feedback information corresponding to the sensing information detected by each of the object detector, the shock detector, and the acceleration detector:
A display unit provided at a rear surface of the helmet body and displaying the feedback information;
A vibration unit provided in the helmet body and vibrating based on the feedback information; And
An alarm unit provided in the helmet body and outputting a warning sound based on the feedback information;
The MCU
When the head movement of the helmet wearer moves from the first position to the second position through the acceleration sensed by the acceleration detection unit and is maintained for a predetermined time, the display unit outputs a determination result signal recognized as a situation in frontal appearance. The vibration unit and the alarm unit,
Providing display information (flashing signal and audio signal) to the display unit and the alarm unit for identifying the position of the Helvett wearer in the vicinity based on the intensity of the scan signal output from the object detecting unit;
When the detection information of the impact detection unit or the acceleration detection unit exceeds a predetermined value, the road driving accident prevention helmet requesting the communication unit to send the location information and emergency call signal to an external terminal.
delete The method of claim 1,
The object detecting unit emits ultrasonic signals having different periods to the object, receives the ultrasonic signal reflected from the object, and based on the time interval between the transmission time of the ultrasonic signal and the reception time of the reflected ultrasonic signal. Calculate the distance between the helmet and the body,
Road accident prevention helmet for converting the reflected ultrasonic signal into an electrical signal using the plurality of transducer elements.
delete The method of claim 1,
The MCU
The road driving accident prevention helmet requesting an emergency call message or emergency call to the communication unit when the difference between the external shock and the internal shock detected by the shock detection unit exceeds the standard shock.
The method of claim 1,
The feedback information is
Road flashing accident prevention helmet including a flashing pattern of the display unit, color information, the vibration pattern of the vibration unit, the vibration intensity, the alarm pattern of the alarm unit, the alarm intensity.
Detecting an object located at a predetermined distance from the accident prevention helmet, an impact amount applied to the accident prevention helmet, and an acceleration according to the movement of the accident prevention helmet;
In the MCU of the accident prevention helmet, feedback information is generated according to the type of detection information detected by each of the object detection unit, the impact detection unit, and the acceleration detection unit, the number of the detection information, and the detection order of the detection information. Providing at least one of eastern; And
Operating on the display unit, the alarm unit and the vibration unit based on the feedback information,
The MCU
When the head movement of the helmet wearer moves from the first position to the second position through the acceleration detected by the acceleration detection unit, and is maintained for a predetermined time, the display unit, the determination result signal recognized as the situation of the front circumference The vibration unit and the alarm unit,
Providing display information (flashing signal and audio signal) to the display unit and the alarm unit for identifying the position of the Helvett wearer in the vicinity based on the intensity of the scan signal output from the object detecting unit;
When the detection information of the impact detection unit or the acceleration detection unit exceeds a predetermined value, the operation method of the road accident accident prevention helmet requesting the communication unit to send the location information and emergency call signal to an external terminal.
The method of claim 7, wherein
The feedback information is
Operating method of the road accident accident helmet including at least one of the flashing pattern of the display unit, color information, the vibration pattern of the vibration unit, the vibration intensity, the alarm pattern of the alarm unit, the alarm intensity.
The method of claim 7, wherein
Generating the feedback information
When the difference between the external shock and the internal shock detected by the shock detection unit in the MCU exceeds the standard shock amount, generating a feedback information including an emergency call message or request information requesting an emergency call of the road driving accident prevention helmet How it works.

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