KR102337088B1 - Accident Prevention System for School Zone - Google Patents

Abstract

The present invention relates to a system for school zone accident prevention. According to the present invention, a vehicle driver driving in a school zone and a child pedestrian in the school zone can be alerted at the same time, each of them can pay attention, and thus a traffic accident can be prevented. The system includes: a vehicle speed detector detecting the speed of a vehicle traveling in a school zone; a pedestrian speed detector detecting the speed of a pedestrian walking in the school zone; an imaging unit imaging the pedestrian's behavior in the school zone; a control unit performing control based on the data detected and imaged by the vehicle speed detector, the pedestrian speed detector, and the imaging unit such that each of the driver of the traveling vehicle and the pedestrian can be alerted with one or more selected from a warning voice, a warning text, and a warning light; and a guide unit alerting the driver and the pedestrian based on the control of the control unit.

Description

Accident Prevention System for School Zone

The present invention relates to an accident prevention system for a child protection area, and more particularly, to prevent accidents by guiding child pedestrians and driving vehicles to pay attention to each other according to the presence of child pedestrians and driving vehicles in the child protection area. It is about the local accident prevention system.

A certain area of the road adjacent to the school is designated as a school zone, allowing vehicles traveling on the road to slow down and drive with caution. Accidents between vehicles are prevented.

The speed limit of vehicles in these child protection zones is limited to 30 k/m, which is lower than the speed limit of vehicles on other roads. Nevertheless, a large number of traffic accidents in the child protection zone occur every year.

Therefore, in recent years, various technologies for reducing traffic accidents in child protection zones have been developed. As a prior art for this purpose, a school zone enforcement system (hereinafter referred to as 'patent literature') of Korean Patent Publication No. 2134757 is disclosed.

The school zone enforcement system disclosed in the above patent document includes a control center; A camera (CAM) including a road monitoring CAM that cracks down on passing vehicles in the school zone, and an enforcement CAM that cracks down on vehicles illegally parked and stopped on the back road in the school zone; an informator that communicates with the control center and outputs vehicle information passing through the school zone as audio or video; Receiving the image information photographed through the camera through the control center, and a related institution server for sharing information with the control center, wherein the camera (CAM) performs vehicle detection in the school zone, the camera ( CAM) improves the vehicle detection rate by performing multiple detection on the captured image, the control center, the camera (CAM), an informator and a communication unit for communicating with the server of the relevant institution; an image information receiving unit for receiving image information photographed from a camera (CAM); an image information transmission unit for transmitting the received image information to a related institution server; Vehicle information DB for storing vehicle information; Control exclusion point DB that stores information on points where enforcement is excluded; and an analysis unit for performing a predetermined analysis based on the image information received through the image information receiving unit, wherein the analysis unit includes a license plate number trigger area and an image trigger area on the image information received through a camera (CAM) to perform multiple detection by classifying, the multiple detection detects a vehicle primarily in the laser detection area based on image information If detection is performed and vehicle detection is not performed in the license plate number trigger area, the third vehicle detection is performed in the image trigger area, and if vehicle detection is not performed in the previous round, a total of three times are sequentially detected in the next round. By performing as , the detection rate of the vehicle in the corresponding image information is improved.

The conventional school zone enforcement system as described above is configured to detect the speed of a driving vehicle in order to reduce traffic accidents in the child protection zone, and to control the speeding vehicle through this, although it is possible to reduce the speed of the driving vehicle through this However, there is a problem that cannot be prevented for traffic accidents caused by the carelessness of children and pedestrians.

Therefore, in order to reduce traffic accidents that occur in the child protection zone, the development of an improved child protection zone accident prevention system is required to provide attention to both driving vehicles and pedestrians at the same time.

KR 10-2134757 B1 (2020. 07. 10.) KR 10-1663929 B1 (2016. 09. 30.) KR 10-2013-0115041 A (2013. 10. 21.) KR 10-1256041 B1 (2013. 04. 12.) KR 10-0965929 B1 (2010. 06. 16.) KR 10-2010-0087438 A (2010. 08. 05.)

The present invention has been devised to solve the problems of the conventional child protection zone accident prevention system as described above, and the problem to be solved by the present invention is, The goal is to provide an accident prevention system for a child protection area that can prevent traffic accidents by giving pedestrians a sense of alert at the same time so that they can pay attention to each other.

A child protection zone accident prevention system according to an embodiment of the present invention, a vehicle speed detection unit for detecting the speed of a driving vehicle in the child protection zone; Pedestrian speed detection unit for detecting the walking speed of pedestrians in the child protection zone; an image photographing unit for photographing a behavior image of a pedestrian in the child protection zone; A control unit for controlling to provide at least one caution guide selected from a warning sound, a warning text, and a warning light to a driver and a pedestrian of a driving vehicle, respectively, based on the data detected and photographed by the vehicle speed detection unit, the pedestrian speed detection unit, and the image photographing unit; and a guide for guiding attention to the driver and pedestrian of the driving vehicle through the control of the controller.

Another feature of the present invention is that a safety fence is installed along the boundary between the sidewalk and the road adjacent to the crosswalk, and a plurality of warning lights that are turned on through the control of the controller along the length are installed in the safety fence. do it with

In addition, in the present invention, when a pedestrian is detected adjacent to the crosswalk through the image capturing unit, the control unit provides caution guidance to the driving vehicle through the guide unit on the road side, and when the vehicle is detected through the vehicle speed sensing unit , it is characterized in that the control unit controls to provide attention guidance to the pedestrian through the guide on the side of the crosswalk.

In addition, the present invention controls to provide attention guidance so that the pedestrian moves below the reference speed through the guide unit on the side of the crosswalk when the movement speed of the pedestrian is detected as higher than the reference speed through the pedestrian speed detection unit is another feature.

And in the present invention, when a pedestrian or a driving vehicle is detected at night, the control unit turns on the light on the side of the crosswalk to check whether the pedestrian is a pedestrian, and turns on another light on the side of the road to illuminate the virtual bump on the road. It is another feature to control so that it is irradiated.

According to the present invention, it is possible to provide a caution guide for each situation to a driving vehicle and a pedestrian in the child protection zone, and through this, the effect of reducing the occurrence of traffic accidents in the child protection zone can be expected.

In addition, by analyzing the movement speed and direction of pedestrians, it is possible to predict whether or not to cross the crosswalk through machine learning in advance, and through this, there is an advantage in that it is possible to quickly provide attention to the driver of a driving vehicle according to an urgent situation.

1 is a schematic diagram of a child protection area accident prevention system according to the present invention.
Figure 2 is a view showing an example of a holding for a child protection area accident prevention system according to the present invention.
Figure 3 is a configuration diagram showing an example of a child protection area accident prevention system according to the present invention.
4 is a block diagram showing an example of a control unit according to the present invention.
5 is a view showing an example of a warning light installed on a post according to the present invention.
6 is a view showing an example of a warning light installed on the safety fence according to the present invention.
7 is a view showing an example in which light is irradiated to a virtual bump through a lighting lamp according to the present invention.

Hereinafter, a preferred embodiment of the present invention will be described in detail with reference to the accompanying drawings.

The present invention is to provide an accident prevention system for a child protection area that can prevent a traffic accident by giving a warning to a vehicle driver in the road area within the child protection area and a child pedestrian in the sidewalk area at the same time so that they can pay attention to each other As shown in FIG. 1, the present invention provides a safety fence (2) installed along the road boundary on both sides based on the crosswalk (1) installed in the child protection zone, and both sides of the crosswalk (1) It includes a post (3) installed to have a length perpendicular to the crosswalk (1) and a virtual bump (4) of a predetermined width painted to have a three-dimensional effect on the road spaced a predetermined distance from the crosswalk (1).

And as shown in FIGS. 2 and 3, the pole 3 is provided with a vehicle speed sensor 10, a pedestrian speed sensor 20, an image capture unit 30, a control unit 40, and a guide unit 50. , Hereinafter, the above configurations will be described in detail.

The vehicle speed detection unit 10 is configured to detect the speed of a vehicle traveling on a road in the child protection zone, and transmit the detected speed information to the control unit 40 to be described later.

The vehicle speed sensor 10 may be configured as a Doppler speed sensor that irradiates a laser light to a moving object, detects a change in the frequency of the scattered light, and measures the moving speed and the moving direction of the object.

In addition, the vehicle speed sensing unit 10 is configured to detect all the speeds of vehicles traveling on the road, such as motorcycles and bicycles, as well as cars traveling on the road.

Although it has been described above that the vehicle speed sensing unit 10 is configured as a Doppler speed sensor, it may be configured as a camera for photographing a road in a child protection zone, and a moving object in the image captured by the camera will be described later. The control unit 40 may be configured to separately recognize and estimate the speed.

The pedestrian speed detection unit 20 is configured to detect the movement speed of a pedestrian, such as a child moving on the sidewalk in the child protection zone, and transmit the detected speed information to the controller 40 to be described later.

The pedestrian speed detection unit 20 quickly detects the speed of a vehicle such as a bicycle or a motorcycle traveling along the sidewalk, and through this, when necessary, it is possible to quickly provide caution to a vehicle traveling on the road.

The pedestrian speed detecting unit 20 as described above may be configured as a Doppler speed detecting sensor like the vehicle speed detecting unit 10 .

The image photographing unit 30 is configured to photograph a pedestrian located on the sidewalk in the child protection zone, and transmit the photographed image to the control unit 40 .

This image capturing unit 30 may be configured as a CCTV camera as shown in FIG. 2 , and this image capturing unit 30 includes a crosswalk (1) area, a sidewalk area and a road adjacent to the crosswalk (1). It may be composed of a plurality of CCTV cameras so that each area is photographed.

The control unit 40 is a guide to be described later to give attention to the driving vehicle and pedestrians when necessary based on the speed and image information transmitted from the vehicle speed detecting unit 10, the pedestrian speed detecting unit 20 and the image capturing unit 30, respectively. It is a configuration for controlling the operation of the unit (50).

As shown in FIG. 4 , the control unit 40 includes an object extraction unit 41 for extracting a moving object photographed through the image capturing unit 30 , and traversing among the moving objects extracted by the object extraction unit 41 . A monitoring object determination unit 42 that determines a monitoring object using movement, etc. adjacent to the sidewalk 1 or toward the crosswalk 1, and the movement determined as a monitoring object through the monitoring object determination unit 42 A state monitoring unit 43 for continuously tracking and monitoring the movement of an object; A warning sound output control unit 45 for controlling the speaker 51 of the guide unit 50 to output a warning sound when necessary to the monitoring object monitored through 43 and the driving vehicle, and the state monitoring unit 43 A warning text output control unit 46 that controls the electronic sign 52 of the guide 50 to output a warning text to a driving vehicle when necessary according to the dangerous behavior of the monitored object, the speaker 51, the electronic sign ( 52), the warning light lighting control unit 47 that controls the lighting of the warning light 53 installed on the safety fence 2 and the post 3, respectively, and the crosswalk (1) and virtual bump (4) at night and a lighting control unit 48 for controlling the illumination lamp 54 of the guide unit 50 to irradiate the light to the light.

Here, the object extraction unit 41 analyzes a moving object from the image captured by the image capturing unit 30, and analyzes the size, movement speed, behavior pattern, etc. of the moving object to classify people, animals, bicycles, motorcycles, etc. to extract it as a separate object, and the monitoring target determination unit 42 assigns a weight to an object that is highly likely to cross the road through the crosswalk 1 among the objects classified into people, animals, bicycles and motorcycles, is configured to be judged as

For example, a person and a bicycle are likely to cross a road through a crosswalk (1), and an animal traveling with a person is likely to cross a crosswalk (1) with a person, weighted by default to be judged as a target for monitoring.

Here, even if it is an object determined to be a bicycle, its speed decreases as it approaches the crosswalk (1), or if it is stopped on the sidewalk toward the crosswalk (1), it is determined that the object is crossing the crosswalk (1) and the object to be monitored Conversely, if the speed does not decrease even if it approaches the crosswalk 1, it is determined that the object does not cross the crosswalk 1, so that it can be configured to be excluded from the monitoring object.

In addition, the motorcycle is excluded from the priority monitoring target because it is judged that the probability of crossing the crosswalk (1) is low, except when the speed decreases as it approaches the crosswalk (1) or when it stops at the crosswalk (1) make it possible

And in the case of an animal that does not move with humans, it is difficult to specify the behavioral pattern, so in this case, the speaker 51, the electric sign 52, and the warning light 53 are used immediately so that the driving vehicle can respond to an unexpected situation. guide

In addition, it predicts behavioral patterns through machine learning (machine learning technique) for people, bicycles, and motorcycles crossing the crosswalk (1), and through this, predicts whether or not the crosswalk (1) will be crossed more quickly, and the driving vehicle and to give attention to pedestrians, and as a result, to further reduce traffic accidents occurring within the child protection zone.

On the other hand, the control unit 40 controls the speaker 51 through the warning sound output control unit 45 to prevent a traffic accident when the speed of the vehicle detected through the vehicle speed detection unit 10 is faster than the speed limit (overspeed). Through this, the deceleration driving guidance voice is output, and if necessary, the vehicle number is extracted from the image of the speeding vehicle through the image capturing unit 30 and stored in the storage unit 44, and then used as speeding enforcement information. can be configured.

At this time, the control unit 40 transmits the speeding vehicle number stored in the storage unit 44 to the competent police station, etc., and the vehicle speed detecting unit 10, the pedestrian speed detecting unit 20, the image capturing unit 30 and the guide unit 50. and a communication unit (not shown) for transmitting and receiving data by wire or wirelessly may be further provided.

Here, the communication unit is composed of a wireless communication module such as WLAN (Wireless LAN) (Wi-Fi), Wibro (Wireless broadband), Wimax (World Interoperability for Microwave Access), HSDPA (High Speed Downlink Packet Access), WiFi, etc., or Bluetooth It can be composed of short-distance communication technology modules such as (Bluetooth), RFID (Radio Frequency Identification), infrared communication (IrDA, infrared Data Association), UWB (Ultra Wideband), and ZigBee.

In addition, the moving speed of the moving object detected through the pedestrian speed detecting unit 20 is faster than the set speed (hereinafter referred to as the 'reference speed') and moves toward the crosswalk 1, and at the same time, the vehicle speed detecting unit 10 When a driving vehicle is detected through the crosswalk (1), an acoustic signal is generated through the warning sound output control unit 45 to prevent a traffic accident that occurs when crossing the crosswalk (1), and to the driving vehicle and the pedestrian (or the vehicle on the sidewalk) At the same time, a warning sound may be output through the speaker 51 .

In addition, if the speed detected by the vehicle speed detecting unit 10 and the pedestrian speed detecting unit 20 is faster than the limit speed and the reference speed, the safety fence 2 as shown in FIGS. 5 and 6 through the warning light lighting control unit 47 ) and the warning light 53 installed on the post 3 may be controlled to turn on and guide the driving vehicle and pedestrians and vehicles on the sidewalk to pay attention.

Here, the speed limit may be set to 30 km/h, and the reference speed may be set to 5 km/h.

Meanwhile, the storage unit 44 stores received data and programs and various data for object monitoring. can

In addition, the lighting control unit 48 is configured to turn on the lighting lamp 54 by generating a signal at night, so that the driving vehicle and the pedestrian can easily recognize each other.

The guide unit 50 is configured to provide attention guidance to driving vehicles and pedestrians, and includes a speaker 51 , an electric sign 52 , a warning light 53 , and an illumination light 54 as shown in FIG. 4 .

The speaker 51 is configured to generate a warning sound based on the sound signal generated by the warning sound output control unit 45 of the control unit 40. can be composed of

In addition, the electric sign 52 has a plurality of LEDs arranged in a matrix structure so that the vehicle speed sensed through the vehicle speed sensing unit 10 is output in real time, and if necessary, the warning text output control unit 46 of the control unit 40 is provided. It is configured to output a warning message through the system, and through this, the driver of the driving vehicle can easily recognize whether the vehicle is speeding and decelerate the vehicle.

And a plurality of warning lights 53 are installed on the post 3 as shown in FIG. 5, and may be installed along the safety fence 2 as shown in FIG. 6, and these warning lights 53 are the speaker ( 51) or may be configured to be lit together with the operation of the electric sign 52.

In addition, the lighting lamp 54 is configured to irradiate light to a sidewalk area adjacent to the crosswalk 1 and a road area adjacent to the crosswalk 1, and through this, a driving vehicle and a pedestrian can be easily recognized each other.

At this time, in the case of irradiating light to the road area, as shown in FIG. 7 , the illumination light is irradiated to the virtual bump 4 constructed on the road, and through this, the driving vehicle sees the virtual bump 4 at night. It can be recognized from a distance and induce deceleration in advance.

On the other hand, although it has been described above that the virtual bump 4 is painted to have a three-dimensional effect, a plurality of protrusions having a predetermined width and length may be included in addition to this.

As described above, the present invention can provide a caution guide for driving vehicles and pedestrians in the child protection zone for each situation, thereby reducing the occurrence of traffic accidents in the child protection zone, and also, the movement speed and direction of pedestrians It is possible to predict whether or not to cross a crosswalk in advance through repeated learning (deep learning or machine learning) by analyzing etc.

In the above description, for convenience of explanation, reference numerals and names are given to the drawings showing preferred embodiments and configurations shown in the drawings, but this is an embodiment according to the present invention. It should not be construed as being limited, and simple substitutions from the description of the invention to changes in various shapes that can be predicted and to a configuration having the same function are within the scope of change for those skilled in the art to easily implement. It will be seen as extremely self-explanatory.

1: Crosswalk 2: Safety fence
3: Shore 4: Virtual Bump
10: vehicle speed detection unit 20: pedestrian speed detection unit
30: image capturing unit 40: control unit
41: object extraction unit 42: monitoring object determination unit
43: status monitoring unit 44: storage unit
45: warning sound output control unit 46: warning text output control unit
47: warning lamp lighting control unit 48: lighting lamp lighting control unit
50: guide 51: speaker
52: electric sign 53: warning light
54: light

Claims (5)

In the accident prevention system installed in the crosswalk (1) where no traffic lights are installed in the child protection zone,
A vehicle speed detection unit 10 for detecting the speed of a driving vehicle in the child protection zone;
Pedestrian speed detection unit 20 for detecting the walking speed of pedestrians in the child protection zone;
an image photographing unit 30 for photographing a behavioral image of a pedestrian in the child protection zone;
On the basis of the data detected and photographed by the vehicle speed detecting unit 10, the pedestrian speed detecting unit 20, and the image capturing unit 30, at least one selected from a warning sound, a warning text, and a warning light to the driver and pedestrian of the driving vehicle, respectively a control unit 40 that controls to provide an attention guide; and
a guide unit 50 for guiding attention to the driver and pedestrian of the driving vehicle through the control of the control unit 40;
including,
When a pedestrian is detected adjacent to the crosswalk 1 through the image capturing unit 30,
The control unit 40 provides caution guidance to the driving vehicle through the guide unit 50 on the road side,
When a vehicle is detected through the vehicle speed detection unit 10,
Controls the control unit 40 to provide attention guidance to pedestrians through the guide unit 50 on the side of the crosswalk (1),
When it is detected that the moving speed of the pedestrian is greater than or equal to the reference speed through the pedestrian speed detection unit 20,
The child protection zone accident prevention system, characterized in that the control unit 40 controls to provide a caution guide so that the pedestrian moves at a speed less than a reference speed through the guide unit 50 on the side of the crosswalk (1).
The method according to claim 1,
A safety fence (2) is installed along the boundary between the sidewalk and the road adjacent to the crosswalk (1),
In the safety fence (2),
A child protection area accident prevention system, characterized in that a plurality of warning lights (53) that are turned on under the control of the control unit (40) are installed along the length.
delete delete The method according to claim 1 or 2,
When a pedestrian or driving vehicle is detected at night,
The control unit 40 turns on the lighting lamp 54 on the side of the crosswalk 1 to check whether there is a pedestrian, and turns on another lighting lamp 54 on the road side to illuminate the virtual bump 4 on the roadway. A child protection area accident prevention system, characterized in that it controls the light to be irradiated.

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