KR102682274B1 - Iot-based smart driver attention notification method for pedestrian protection - Google Patents

Abstract

The present invention relates to an IoT-based smart driver attention notification method for pedestrian protection, comprising: detecting a pedestrian in a pedestrian area including at least a crosswalk through a pedestrian detection unit and generating a pedestrian detection signal; Generating a vehicle detection signal by detecting the vehicle in an entry area of a driving area formed along a driving path of a vehicle traveling in the direction of the pedestrian area through a vehicle detection unit; and a plurality of devices configured to receive the pedestrian detection signal and the vehicle detection signal, through an integrated control unit, and to project lights toward the road in the vicinity of the driving area along the driving path when a preset situation condition is met. It includes; controlling the operation of the gaze guiding lights.

Description

IoT-based smart driver attention notification method for pedestrian protection {IOT-BASED SMART DRIVER ATTENTION NOTIFICATION METHOD FOR PEDESTRIAN PROTECTION}

The present invention relates to pedestrian protection technology, and more specifically, an IoT-based smart driver attention notification method for pedestrian protection that can prevent traffic accidents in advance by providing safety information to both drivers and pedestrians at right turn intersections or crosswalks. It's about.

A traffic accident can be defined as an accident in which other transportation vehicles, objects, drivers, pedestrians, etc. are damaged or killed due to collisions, derailments, falls, etc. that occur during the operation of transportation devices such as vehicles. In particular, it is calculated that 49.2% of all traffic accidents occur at intersections, and as most traffic accidents at intersections occur between 16:00 and 20:00, the need to collect measures to reduce traffic accidents at intersections at night is increasing. there is.

Accordingly, there is a movement by the government to revise the Road Traffic Act to expand vehicle drivers' obligations to protect pedestrians crossing crosswalks, and from a system perspective, technologies are being developed to provide safety information to pedestrians. As a representative example, floor traffic lights, a walking assistance device made by installing LED panels on the floor of the crosswalk waiting line in connection with traffic lights, are vulnerable to shock and flooding and have limitations due to the lack of a driver recognition system.

As another example, crosswalk lights, which are safety facilities that brightly illuminate crosswalks so that drivers can more easily identify pedestrians, can provide visual information to drivers, but the spatial distance is insufficient for drivers to recognize crosswalks in advance. There may be a risk of traffic accident. In addition, the crosswalk smart sensor, which provides a voice warning when jaywalking by installing a human body sensor at the crosswalk waiting line, lacks a device to provide information to drivers and may cause frequent civil complaints around residential areas due to voice sounds at night. You can.

Recently, smart crosswalks, which immediately recognize dangerous situations on the road through artificial intelligence (AI) and provide information through various information providing devices, are at risk of large traffic accidents due to frequent malfunctions such as false positives due to vehicle lights coming through cameras at night. There are risks, and the cost of installing crosswalk safety devices may be excessive.

Korean Patent No. 10-1863607 (2018.05.28)

An embodiment of the present invention seeks to provide an IoT-based smart driver attention notification method for pedestrian protection that can prevent traffic accidents by providing safety information to both drivers and pedestrians at right-turn intersections or crosswalks.

Among embodiments, an IoT-based smart driver attention notification method for pedestrian protection includes the steps of detecting a pedestrian on a pedestrian area including at least a crosswalk through a pedestrian detection unit and generating a pedestrian detection signal; Generating a vehicle detection signal by detecting the vehicle in an entry area of a driving area formed along a driving path of a vehicle traveling in the direction of the pedestrian area through a vehicle detection unit; and a plurality of devices configured to receive the pedestrian detection signal and the vehicle detection signal, through an integrated control unit, and to project lights toward the road in the vicinity of the driving area along the driving path when a preset situation condition is met. It includes; controlling the operation of the gaze guiding lights.

Generating the pedestrian detection signal may include detecting whether the pedestrian enters, passes, or leaves the pedestrian area through at least one detection sensor installed near the pedestrian area.

The step of generating the pedestrian detection signal includes collecting pedestrian images of the pedestrian area through the camera sensor when the detection sensor is a camera sensor and detecting the pedestrian through object detection for the pedestrian image. Steps may be included.

Generating the vehicle detection signal may include measuring the driving speed of the vehicle along with the vehicle detection signal through a radar sensor or camera sensor installed near the entry area.

Generating the vehicle detection signal may include predicting traffic volume within the driving area based on information collected through the radar sensor or camera sensor.

The step of controlling the operation may include visually providing a pedestrian caution notification to the driver of the vehicle by adjusting the brightness and color temperature of each of the plurality of eye-directing lights when the situation condition is met.

The step of controlling the operation may include adjusting the brightness and color temperature of the eye-guiding light according to the season or dynamically adjusting the brightness and color temperature of the eye-guiding light according to the traffic volume in the driving area and the driving speed of the vehicle. .

Controlling the operation may include providing at least one of detection information of the pedestrian and operation information of the vehicle through a display module installed near the entry area.

The disclosed technology can have the following effects. However, since it does not mean that a specific embodiment must include all of the following effects or only the following effects, the scope of rights of the disclosed technology should not be understood as being limited thereby.

The IoT-based smart driver caution notification method for pedestrian protection according to an embodiment of the present invention is installed at night intersections and sections without crosswalks, detects pedestrians, visually informs vehicles of danger precautions, and provides gaze guidance lights. Traffic accidents can be prevented by informing of dangerous situations in advance.

The IoT-based smart driver attention notification method for pedestrian protection according to an embodiment of the present invention has low power consumption and operates the gaze guidance light relatively low in normal times and operates relatively high when a pedestrian is detected, thereby reducing vehicle traffic. It can enable efficient operation while saving energy in the area.

1 is a diagram illustrating a smart driver attention notification system according to the present invention.
FIG. 2 is a diagram explaining the system configuration of the attention notification device of FIG. 1.
FIG. 3 is a diagram explaining the functional configuration of the attention notification device of FIG. 1.
Figure 4 is a flowchart explaining the IoT-based smart driver attention notification method for pedestrian protection according to the present invention.
Figure 5 is a diagram illustrating an embodiment of an operation process in a right turn intersection section according to the present invention.
Figure 6 is a diagram illustrating an embodiment of an operation process in a section without traffic lights according to the present invention.
Figure 7 is a diagram explaining an embodiment of a safety fence according to the present invention.

Since the description of the present invention is only an example for structural or functional explanation, the scope of the present invention should not be construed as limited by the examples described in the text. In other words, since the embodiment can be modified in various ways and can have various forms, the scope of rights of the present invention should be understood to include equivalents that can realize the technical idea. In addition, the purpose or effect presented in the present invention does not mean that a specific embodiment must include all or only such effects, so the scope of the present invention should not be understood as limited thereby.

Meanwhile, the meaning of the terms described in this application should be understood as follows.

Terms such as “first” and “second” are used to distinguish one component from another component, and the scope of rights should not be limited by these terms. For example, a first component may be named a second component, and similarly, the second component may also be named a first component.

When a component is referred to as being “connected” to another component, it should be understood that it may be directly connected to the other component, but that other components may exist in between. On the other hand, when a component is said to be “directly connected” to another component, it should be understood that there are no other components in between. Meanwhile, other expressions that describe the relationship between components, such as “between” and “immediately between” or “neighboring to” and “directly neighboring to”, should be interpreted similarly.

Singular expressions should be understood to include plural expressions unless the context clearly indicates otherwise, and terms such as “comprise” or “have” refer to implemented features, numbers, steps, operations, components, parts, or them. It is intended to specify the existence of a combination, and should be understood as not excluding in advance the possibility of the presence or addition of one or more other features, numbers, steps, operations, components, parts, or combinations thereof.

For each step, identification codes (e.g., a, b, c, etc.) are used for convenience of explanation. The identification codes do not explain the order of each step, and each step clearly follows a specific order in context. Unless specified, events may occur differently from the specified order. That is, each step may occur in the same order as specified, may be performed substantially simultaneously, or may be performed in the opposite order.

The present invention can be implemented as computer-readable code on a computer-readable recording medium, and the computer-readable recording medium includes all types of recording devices that store data that can be read by a computer system. . Examples of computer-readable recording media include ROM, RAM, CD-ROM, magnetic tape, floppy disk, and optical data storage devices. Additionally, the computer-readable recording medium can be distributed across computer systems connected to a network, so that computer-readable code can be stored and executed in a distributed manner.

All terms used herein, unless otherwise defined, have the same meaning as commonly understood by a person of ordinary skill in the field to which the present invention pertains. Terms defined in commonly used dictionaries should be interpreted as consistent with the meaning they have in the context of the related technology, and cannot be interpreted as having an ideal or excessively formal meaning unless clearly defined in the present application.

1 is a diagram illustrating a smart driver attention notification system according to the present invention.

Referring to FIG. 1, the smart driver caution notification system 100 may include a safety fence 110, a caution notification device 130, and a database 150.

The safety fence 110 may correspond to a facility installed for the purpose of preventing accidents such as collisions between vehicles and pedestrians by physically separating the roadway on which vehicles travel and the sidewalk on which pedestrians walk. The safety fence 110 may be designed in various structures and shapes, and may be implemented to operate in conjunction with the caution notification device 130. For example, the safety fence 110 can be implemented in combination with a smart gaze guidance light that works in conjunction with the caution notification device 130. In other words, the smart gaze guidance light can be installed while supported on the physical structure of the safety fence 110, and can perform operations to protect pedestrians while the vehicle is driving. Accordingly, the smart gaze guidance light is placed on the safety fence 110 of a relatively low height and projects light toward the roadway, thereby performing the role of a low streetlight.

In addition, the safety fence 110 can be implemented as a device constituting the smart driver caution notification system 100, and the smart driver caution notification system 100 provides IoT-based smart driver caution notification for the purpose of protecting pedestrians. It can be transformed and implemented in various forms. For example, the safety fence 110 may be connected to the caution notification device 130 through a network, and a plurality of safety fences 110 may be connected to the caution notification device 130 at the same time.

In one embodiment, the safety fence 110 may be installed in the form of a fence at the peripheral edge of the road, and may include at least one LED light, a switching mode power supply (SMPS), and a lighting control unit. The detailed configuration of the safety fence 110 will be described in more detail with reference to FIG. 7.

The caution notification device 130 may be implemented as a server corresponding to a computer or program that performs the IoT-based smart driver caution notification method for pedestrian protection according to the present invention. For example, the caution notification device 130 may be implemented as a gateway terminal or master terminal that interfaces with a server. In this case, the IoT-based smart driver for pedestrian protection according to the present invention interfaces with the server. A caution notification method can be performed. Additionally, the attention notification device 130 may be implemented to operate in connection with an independent external system (not shown in FIG. 1).

The database 150 may correspond to a storage device that stores various information required during the operation of the attention notification device 130. For example, the database 150 may store information about sensor data and detection algorithms for detecting pedestrians and vehicles, or may store information for a caution notification operation, but is not necessarily limited thereto, and the caution notification device 130 In the process of performing the IoT-based smart driver attention notification method for pedestrian protection according to the present invention, information collected or processed in various forms can be stored.

In addition, in FIG. 1, the database 150 is shown as a device independent of the caution notification device 130, but is not necessarily limited thereto, and may be implemented as a logical storage device included in the caution notification device 130. Of course.

FIG. 2 is a diagram explaining the system configuration of the attention notification device of FIG. 1.

Referring to FIG. 2 , the attention notification device 130 may include a processor 210, a memory 230, a user input/output unit 250, and a network input/output unit 270.

The processor 210 can execute an IoT-based smart driver attention notification procedure for pedestrian protection according to an embodiment of the present invention, and manage the memory 230 that is read or written in this process. You can schedule the synchronization time between volatile memory and non-volatile memory. The processor 210 can control the overall operation of the attention notification device 130 and is electrically connected to the memory 230, the user input/output unit 250, and the network input/output unit 270 to control the data flow between them. You can. The processor 210 may be implemented as a Central Processing Unit (CPU) or a Graphics Processing Unit (GPU) of the attention notification device 130.

The memory 230 may be implemented as a non-volatile memory such as a solid state disk (SSD) or a hard disk drive (HDD) and may include an auxiliary memory used to store all data required for the caution notification device 130. It may include a main memory implemented as volatile memory such as RAM (Random Access Memory). In addition, the memory 230 can store a set of instructions for executing the IoT-based smart driver attention notification method for pedestrian protection according to the present invention by being executed by the electrically connected processor 210.

The user input/output unit 250 includes an environment for receiving user input and an environment for outputting specific information to the user, and includes an input adapter such as, for example, a touch pad, a touch screen, an on-screen keyboard, or a pointing device. It may include an output device including a device and an adapter such as a monitor or touch screen. In one embodiment, the user input/output unit 250 may correspond to a computing device connected through a remote connection, and in such case, the attention notification device 130 may be performed as an independent server.

The network input/output unit 270 provides a communication environment for connection to the safety fence 110 through a network, for example, LAN (Local Area Network), MAN (Metropolitan Area Network), WAN (Wide Area Network), and It may include an adapter for communication such as VAN (Value Added Network). Additionally, the network input/output unit 270 may be implemented to provide short-range communication functions such as WiFi and Bluetooth or wireless communication functions of 4G or higher for wireless transmission of data.

FIG. 3 is a diagram explaining the functional configuration of the attention notification device of FIG. 1.

Referring to FIG. 3, the caution notification device 130 can perform the IoT-based smart driver caution notification method for pedestrian protection according to the present invention. To this end, the caution notification device 130 may include a pedestrian detection unit 310, a vehicle detection unit 330, an integrated control unit 350, a gaze guiding light 370, and a display module 390.

At this time, the embodiment of the present invention does not need to include all of the above configurations at the same time, and depending on each embodiment, some of the above configurations are omitted or some or all of the above configurations are selectively included. It could be. Hereinafter, the operation of each component will be described in detail.

The pedestrian detection unit 310 may detect pedestrians in a pedestrian area including at least a crosswalk and generate a pedestrian detection signal. Here, the pedestrian area is an area formed near a crosswalk formed on the roadway and may correspond to an area where pedestrians wait for a signal to cross the crosswalk. A pedestrian area can be virtually formed on a sidewalk located in an entry area of a crosswalk, and the pedestrian detection unit 310 can sense and detect pedestrians within the pedestrian area. The pedestrian detection unit 310 may generate a pedestrian detection signal when it detects a pedestrian within the pedestrian area, and the pedestrian detection signal may be transmitted to the integrated control unit 350. At this time, the pedestrian detection signal may be transmitted through a wireless method such as Zigbee, LoRa, 5G, LTE, CDMA, or a wired method such as RS485, RS232, or PLC, but is of course not limited to this. .

In one embodiment, the pedestrian detection unit 310 may detect whether a pedestrian enters, passes, or leaves the pedestrian area through at least one detection sensor installed near the pedestrian area. The pedestrian detection unit 310 may analyze sensor data collected from various detection sensors to detect movement of a pedestrian entering, passing, or leaving a pedestrian area. For example, the pedestrian detection unit 310 can detect pedestrians using a PIR (Passive Infrared) sensor or a method combining a radar sensor and an intelligent camera, and can also perform pedestrian detection operations through various methods. .

In one embodiment, when the detection sensor is a camera sensor, the pedestrian detection unit 310 may collect pedestrian images of the pedestrian area through the camera sensor and detect the pedestrian through object detection for the pedestrian image. there is. At this time, the camera sensor may correspond to an intelligent camera, and like an intelligent CCTV, an intelligent camera uses a CCTV camera to analyze video-based behavior, detect abnormal behavior, or automatically recognize and process specific situations such as entering a pedestrian area. It may correspond to a camera system that uses That is, the pedestrian detection unit 310 can receive situational information such as entry, passage, and departure from the pedestrian area along with whether or not a pedestrian is detected from the camera sensor, and transmits the pedestrian detection signal to the integrated control unit 350 to provide situational information. can be delivered together.

The vehicle detection unit 330 may generate a vehicle detection signal by detecting a vehicle in an entry area of the driving area formed along the driving path of a vehicle traveling in the direction of the pedestrian area. Here, the driving area may correspond to a virtual space formed on the roadway for a predetermined length in front of the pedestrian area. Therefore, when a vehicle drives normally along the roadway, it may pass through the driving area and then enter the pedestrian area. In this case, the pedestrian area may correspond to a crosswalk formed on the roadway. Additionally, the entry area may correspond to a virtual space formed on the roadway that passes before entering the driving area based on the driving direction of the vehicle. For example, the driving area may correspond to an area ranging from 20 to 50 m in front of the crosswalk, and the entry area may correspond to an area ranging from 3 to 5 m in front of the driving area.

Additionally, the vehicle detection unit 330 may generate a vehicle detection signal when detecting a vehicle within the entry area, and the vehicle detection signal may be transmitted to the integrated control unit 350. At this time, the vehicle detection signal may be transmitted through a wireless method such as Zigbee, LoRa, 5G, LTE, CDMA, or a wired method such as RS485, RS232, or PLC, but is of course not limited to this. .

In one embodiment, the vehicle detection unit 330 may measure the driving speed of the vehicle along with the vehicle detection signal through a radar sensor or camera sensor installed near the entry area. In this case, the RADAR sensor can be placed and operated toward the roadway where the vehicle is driving. It emits radio waves of a specific frequency toward the vehicle and measures the propagation speed and propagation time of the radio waves reflected through the vehicle to determine the vehicle's speed. The distance and speed can be calculated. For example, recent radar sensors can be divided into SRR (Short Range Radar), which detects short distances, and LRR (Long Range Radar), which detects long distances. Additionally, the camera sensor can measure the moving speed of the vehicle by analyzing real-time images collected through the sensor. In other words, the camera sensor can calculate the driving speed of a moving vehicle according to a predetermined algorithm through changes in the image capturing the same space.

In one embodiment, the vehicle detection unit 330 may predict the traffic volume within the driving area based on information collected through a radar sensor or a camera sensor. The vehicle detection unit 330 can count the number of vehicles entering the driving area during a specific time (for example, 1 hour) based on the vehicle detection result, and calculate the traffic volume for each time slot based on this. Additionally, the vehicle detection unit 330 can calculate the ratio of traffic capacity to traffic volume for each time zone (i.e., time traffic/traffic capacity). Here, traffic capacity may correspond to the maximum traffic volume expected to pass without excessive force through one section or point of the road during a unit time (for example, 15 minutes) under given road conditions, traffic conditions, and traffic control conditions. there is.

The integrated control unit 350 receives a pedestrian detection signal and a vehicle detection signal, and when preset situation conditions are met, a plurality of gaze guidance lights (370) are installed along the driving path in the vicinity of the driving area and implemented to project light toward the road. ) can control their operations. For example, the integrated control unit 350 may determine that the situation condition is met when a vehicle enters the driving area while a pedestrian is detected in the pedestrian area. When the situation conditions are met, the integrated control unit 350 can notify situation information through the gaze guidance light 370 so that the driver of the vehicle can drive with attention to pedestrians. At this time, the plurality of eye-directing lights 370 are arranged at regular intervals along the driving path and project a light source with a certain color temperature and brightness toward the roadway to draw the attention of the vehicle driver.

In one embodiment, the integrated control unit 350 may adjust the brightness and color temperature of each of the plurality of eye-directing lights 370 when a situation condition is met to visually provide a pedestrian caution notification to the driver of the vehicle. For example, the gaze guiding light 370 may be controlled to project a light source with a color temperature of 5000K (white series) or 3000K (yellow series) at an intensity of 3W. The integrated control unit 350 can increase the brightness of the gaze guidance light 370 from 3W to 10W when a pedestrian is detected in the pedestrian area, the vehicle enters the driving area, and the situation conditions requiring pedestrian caution are met, which allows the vehicle to The driver of can recognize that there is a pedestrian ahead in the driving direction and that careful driving is required.

In one embodiment, the integrated control unit 350 may adjust the brightness and color temperature of the eye-directing light according to the season or may dynamically adjust the brightness (dimming) and color temperature of the eye-directing light according to the traffic volume in the driving area and the driving speed of the vehicle. For example, the integrated control unit 350 can control the gaze guiding light 370 to project light with a cool color temperature (white color of about 4100K) in summer and warm in winter. The gaze guiding light 370 can be controlled to project light with a desired color temperature (red color of approximately 2700K). As another example, the integrated control unit 350 increases the brightness of the gaze guidance light 370 in a specific situation, that is, when there is a lot of traffic in the driving area or when the vehicle's driving speed is high, to induce the vehicle driver's attention to increase. You can.

In one embodiment, the integrated control unit 350 grades the ratio of traffic capacity to the traffic volume by time zone (i.e., time traffic/traffic capacity) calculated through the vehicle detection unit 330 and provides gaze guidance, etc. according to the grading results. Dimming control for (370) can be performed. For example, the integrated control unit 350 can classify the time traffic volume/traffic capacity calculated for each hour based on the traffic volume by time zone into cases of less than 30%, 30-60%, and more than 60%, and use gaze guidance lights according to the corresponding grade. The brightness of (370) can be adjusted.

In one embodiment, the integrated control unit 350 may dynamically adjust the interval between lights projected on the roadway according to the driving speed of the vehicle entering the driving area. For example, the integrated control unit 350 can adjust the interval between the gaze guidance lights that project light to be shorter as the driving speed of the vehicle entering the driving area increases. That is, the integrated control unit 350 can adjust the spacing between lights by selectively controlling the gaze guiding lights that form a predetermined interval among the plurality of gaze guiding lights to project light. If the driving speed of the vehicle entering the driving area is high, the integrated control unit 350 can reduce the gap between lights projected on the roadway by increasing the number of eye-guiding lights that project light among the plurality of eye-guiding lights. Conversely, if the vehicle's driving speed is slow, the number of eye-guiding lights participating in projecting lights decreases, and as a result, the gap between lights projected on the roadway may increase.

In one embodiment, the integrated control unit 350 may provide at least one of pedestrian detection information and vehicle operation information through a display module 390 installed near the entry area. For example, the display module 390 may be disposed in combination with a sign, streetlight, or traffic light installed near the entry area, and may display a pedestrian caution notification while placed in a direction recognizable by the driver of the vehicle, or display a warning about the current vehicle. The driving speed can be displayed and notified. The integrated control unit 350 may transmit a control signal to the display module 390, and the display module 390 may perform related operations according to the control signal.

The gaze guiding light 370 may be installed along the driving path in the vicinity of the driving area and implemented to project light toward the road. For example, the gaze guiding light 370 may be placed on the safety fence 110, which is a facility to separate the roadway from the sidewalk and prevent pedestrians from entering the roadway. In this case, the gaze guidance lights 370 may be arranged in plural numbers at regular intervals along the roadway, and project light of a certain brightness toward the roadway in the section where the safety fence 110 is installed, thereby providing a warning to the driver of the vehicle driving in the section. It can play a role in drawing attention. The gaze guidance light 370 is connected to the integrated control unit 350 and can operate according to control signals from the integrated control unit 350, and may be linked to the integrated control unit 350 through the safety fence 110 system.

The display module 390 may correspond to a visual display device installed near the entry area. For example, the display module 390 can be implemented as a vehicle electronic signboard and can output various media contents such as text, characters, and videos. The display module 390 may be installed near the driving area of the vehicle, and may provide vehicle driving information such as pedestrian detection information or driving speed to the driver of the vehicle when entering the driving area. Additionally, the display module 390 may provide additional information such as today's weather, fine dust, and traffic volume, as needed. The display module 390 is connected to the integrated control unit 350 and can operate according to control signals from the integrated control unit 350.

Figure 4 is a flowchart explaining the IoT-based smart driver attention notification method for pedestrian protection according to the present invention.

Referring to FIG. 4, the caution notification device 130 may perform an IoT-based smart driver caution notification method for pedestrian protection according to the present invention. Specifically, the caution notification device 130 may detect a pedestrian in a pedestrian area including at least a crosswalk through the pedestrian detection unit 310 and generate a pedestrian detection signal (step S410). The caution notification device 130 may generate a vehicle detection signal by detecting a vehicle in the entry area of the driving area formed along the driving path of the vehicle traveling in the direction of the pedestrian area through the vehicle detection unit 330 (step S430). In other words, the caution notification device 130 can detect a vehicle entering the driving area and determine whether it is a situation in which caution must be notified to the driver of the vehicle through this.

In addition, the caution notification device 130 may provide pedestrian and vehicle information to the driver of the vehicle through the display module 390 installed near the entry position of the driving area through the integrated control unit 350 (step S450). In other words, the display module 390 can visually display whether there are pedestrians waiting to cross the crosswalk in front, and can guide the driver to drive safely by displaying the current driving speed of the vehicle in specific numbers. . In addition, the caution notification device 130 receives a pedestrian detection signal and a vehicle detection signal through the integrated control unit 350, and when preset situation conditions are met, it is installed along the driving path near the driving area and lights up toward the road. The operation of a plurality of gaze guiding lights 370 implemented to project can be controlled (step S470).

Figure 5 is a diagram explaining an embodiment of an operation process in a right turn intersection section according to the present invention.

Referring to FIG. 5, the caution notification device 130 may provide right turn safety information to the driver of a vehicle in a right turn intersection section. First, the caution notification device 130 may receive a pedestrian detection signal from a pedestrian detection device (corresponding to the pedestrian detection unit) installed near the pedestrian area. Additionally, the caution notification device 130 may receive a vehicle detection signal from a vehicle detection device (corresponding to the vehicle detection unit) installed near the driving area formed on the driving path of the vehicle traveling in the pedestrian area. Thereafter, the caution notification device 130 may control the gaze guidance lights placed on the vehicle's driving path using the pedestrian detection signal and the vehicle detection signal.

For example, when entering the driving area of a vehicle while a pedestrian is detected, the caution notification device 130 can adjust the brightness of the gaze guiding light, and the driver of the vehicle driving in the driving area can look forward through the brightened gaze guiding light. The presence of pedestrians can be indirectly recognized. At this time, the pedestrian detection device and the vehicle detection device may be connected to the caution notification device 130 by wire or wirelessly, and the caution notification device 130 may operate by being connected to the gaze guidance light by wire or wirelessly.

Figure 6 is a diagram illustrating an embodiment of an operation process in a section without traffic lights according to the present invention.

Referring to FIG. 6, the caution notification device 130 can provide pedestrian safety information to the driver of a vehicle in a section without traffic lights. First, the caution notification device 130 can detect pedestrians in the pedestrian area near the crosswalk waiting line through a pedestrian detection device. Additionally, the caution notification device 130 can detect the entry of a vehicle into a driving area approximately 50 m in front of the crosswalk. In this case, the caution notification device 130 can sequentially control a plurality of gaze guiding lights installed at regular intervals along the roadway within the driving area to inform the driver of the vehicle of pedestrian caution information.

At this time, the caution notification device 130 controls the brightness of a plurality of gaze guidance lights to continuously increase within a specific range along the driving direction of the vehicle so that the driver drives with more caution as the vehicle approaches the crosswalk. can do. Additionally, the attention notification device 130 may dim the gaze guidance light to a relatively lower brightness than the original brightness when the vehicle has completely passed the driving area.

Figure 7 is a diagram explaining an embodiment of a safety fence according to the present invention.

Referring to FIG. 7 , the safety fence 110 may include at least one LED light 710, a Switching Mode Power Supply (SMPS) 730, and a lighting control unit 750.

The LED lights 710 are installed on the safety fence 110 and can radiate light horizontally to the road floor. Here, the LED lighting 710 may be implemented as the gaze guiding light 370 of FIG. 3. In one embodiment, the LED lighting 710 may be installed on the safety fence 110 to be height adjustable. The LED lights 710 can be installed on the upper front of the safety fence 110 facing the road, and are installed so that they can illuminate evenly in the horizontal direction across the road while being biased downward to prevent dazzling the vehicle driver. At the same time, light loss can be minimized. A plurality of LED lights 710 may be arranged in a row on the safety fence 110 along the road, and may be electrically connected to each other in series. Here, electrical wiring may be made through the inside of the frame constituting the safety fence 110.

In addition, the LED lighting 710 can automatically turn on and off in conjunction with the lighting control unit 750, and can distinguish between normal lighting and notification lighting. That is, the LED lighting 710 can provide a unique lighting function to a predetermined area in response to a control signal from the lighting control unit 750, and at this time, the color temperature or dimming of the LED can be changed. Each of the LED lights 710 is connected to a power line 720 to the SMPS 730 and can operate by receiving power required for operation from the SMPS 730 through the corresponding power line 720. The LED lights 710 are connected in series through a communication and control line 740 and connected to the lighting control unit 750 through the communication and control line 740, so that they can operate in conjunction with the lighting control unit 750.

The SMPS (730) receives external alternating current (AC) power, converts it into direct current (DC) power required for the operation of the LED lighting 710, and supplies direct current (DC) power to the LED lighting 710 through the power line 720. can be supplied. Here, external alternating current (AC) power may be supplied from the outside, but is not necessarily limited thereto.

The lighting control unit 750 can control the operation of LED lights 710 connected in series. Here, the lighting control unit 750 may be implemented to interoperate with the integrated control unit 350 of FIG. 3 and, if necessary, may be implemented by being included in the integrated control unit 350. The lighting control unit 750 can basically control the turning on and off of the LED lighting 710. The lighting control unit 750 may perform color temperature or dimming control while the LED lighting 710 is turned on. That is, the lighting control unit 750 can provide spot lighting in front of an entering vehicle by varying the color temperature or adjusting the brightness of the LED light 710 depending on whether pedestrian or vehicle entry is detected.

In addition, the lighting control unit 750 detects a pedestrian at an intersection or crosswalk where the safety fence 110 is installed and detects a vehicle entering the installation location of the safety fence 110, and displays a light of a specific color or brighter than usual in front of the vehicle. It is possible to provide a visual pedestrian caution warning to the driver, and to minimize power waste by turning off the LED lights 710 or performing power-saving operations during times when there are no pedestrians or approaching vehicles.

Although the present invention has been described above with reference to preferred embodiments, those skilled in the art may make various modifications and changes to the present invention without departing from the spirit and scope of the present invention as set forth in the claims below. You will understand that you can do it.

100: Smart driver attention notification system
110: safety fence 130: caution notification device
150: database
210: Processor 230: Memory
250: user input/output unit 270: network input/output unit
310: pedestrian detection unit 330: vehicle detection unit
350: Integrated control unit 370: Gaze guiding light
390: Display module
710: LED lighting 720: Power line
730: SMPS 740: Communication and control lines
750: Lighting control unit

Claims (8)

Generating a pedestrian detection signal by detecting a pedestrian in a pedestrian area including at least a crosswalk through a pedestrian detection unit;
Through the vehicle detection unit, the vehicle is detected in the entry area of the driving area formed along the driving path of the vehicle traveling in the direction of the pedestrian area, and a vehicle detection signal is generated, which is projected on the roadway according to the driving speed of the vehicle. Dynamically controlling the spacing between lights and increasing the brightness of the lights according to detection of the pedestrian entering the pedestrian area and the vehicle entering the driving area; and
A plurality of lines of sight installed along the driving path in the vicinity of the driving area and implemented to project lighting toward the road when the pedestrian detection signal and the vehicle detection signal are received through the integrated control unit and a preset situation condition is met. IoT-based smart driver attention notification method for pedestrian protection, including the step of controlling the operation of guidance lights.
The method of claim 1, wherein generating the pedestrian detection signal
IoT-based smart driver attention notification for pedestrian protection, comprising the step of detecting whether the pedestrian enters, passes, or leaves the pedestrian area through at least one detection sensor installed near the pedestrian area. method.
The method of claim 2, wherein generating the pedestrian detection signal
The detection sensor is a camera sensor, and collecting a pedestrian image of the pedestrian area through the camera sensor and detecting the pedestrian through object detection for the pedestrian image. IoT-based smart driver attention notification method for protection.
The method of claim 1, wherein generating the vehicle detection signal
An IoT-based smart driver attention notification method for pedestrian protection, comprising the step of measuring the driving speed of the vehicle along with the vehicle detection signal through a radar sensor or camera sensor installed near the entry area.
The method of claim 4, wherein generating the vehicle detection signal
An IoT-based smart driver attention notification method for pedestrian protection, comprising predicting traffic volume in the driving area based on information collected through the radar sensor or camera sensor.
The method of claim 1, wherein controlling the operation includes
IoT-based smart driver caution for pedestrian protection, comprising the step of visually providing a pedestrian caution notification to the driver of the vehicle by adjusting the brightness and color temperature of each of the plurality of gaze guiding lights when the situation condition is met. Notification method.
The method of claim 6, wherein controlling the operation includes
IoT for pedestrian protection, comprising the step of adjusting the brightness and color temperature of the gaze guiding light according to the season or dynamically adjusting the brightness and color temperature of the gaze guiding light according to the traffic volume in the driving area and the driving speed of the vehicle. Based smart driver attention notification method.
The method of claim 1, wherein controlling the operation includes
An IoT-based smart driver attention notification method for pedestrian protection, comprising providing at least one of detection information of the pedestrian and operation information of the vehicle through a display module installed near the entry area.