KR102433537B1 - Sensor-based secondary traffic accident prevention system - Google Patents

Abstract

The present invention relates to a sensor-based secondary traffic accident prevention system comprising: a radar sensor installed at an accident site and for detecting rear monitoring information including whether a vehicle is approaching from the rear of the accident site and the speed and distance of the approaching vehicle; a monitoring server for collecting the rear monitoring information detected by the radar sensor, analyzing the collected rear monitoring information to monitor the rear of the accident site and predict the risk of a secondary accident caused by the vehicle, and providing a notification on the risk of the secondary accident; and an alarm terminal for warning of the risk of the secondary accident at the accident site by being linked with the radar sensor and the monitoring server through a dedicated application. Therefore, the present invention can effectively prevent the secondary accident by enabling people at the accident site to recognize and cope with a vehicle moving in the rear.

Description

Sensor-based secondary traffic accident prevention system {SENSOR-BASED SECONDARY TRAFFIC ACCIDENT PREVENTION SYSTEM}

The present invention relates to a secondary accident prevention technology on a highway, and more specifically, a sensor-based sensor-based system that monitors the rear of the accident site based on a sensor and activates an alarm in case of an accident to secure the safety of police officers or related persons who are handling the accident It is related to the secondary traffic accident prevention system of

Traffic accidents that occur on the road cause great damage by themselves, but it is a more serious problem that it causes secondary traffic accidents and increases the damage. A secondary accident refers to an accident in which a vehicle (person) that has been stopped due to a preceding accident or breakdown collides with a vehicle following the collision.

According to the Korea Expressway Corporation data, over the past three years, an average of 37 people died in secondary accidents on highways, and the fatality rate was 5.6 times higher than that of general accidents. As 97.4% of secondary accidents were investigated due to driver negligence, the best way to prevent secondary accidents on highways is to know in advance about vehicles moving from the rear and to deal with them.

To prevent such secondary accidents, the accident driver installs a broken car sign (safety tripod) at least 100m behind the car during the day, and installs a flashing signal that can be identified at 500m at night along with the safety tripod 200m or more behind the car. making it compulsory

In addition, in the police traffic accident site manual, 200 m or more, 100 m during the day (200 m at night), and 50 m or more from the accident site are designated as deceleration guidance zones, defense zones, and treatment zones, respectively, and patrol cars are placed in each zone to prevent collision accidents. Lift warning lights, rubber cones, and flame signals are used to enhance visibility around the accident site to notify the accident ahead.

Existing secondary accident prevention devices or systems are focused on notifying vehicles approaching from the rear of the accident situation ahead while ensuring the safety of the accident driver.

However, police officers and officials who are directly concentrating on accident handling are exposed to secondary accidents, so a system that protects precious lives by informing them of the risk of secondary accidents in advance is necessary.

Korean Patent Publication No. 10-2015-0031972 (2015.03.25) Korean Patent No. 10-1306759 (2013.09.04)

An embodiment of the present invention provides a sensor-based secondary traffic accident prevention system that monitors the rear of the accident site based on a sensor and activates an alarm in case of an accident to secure the safety of police officers or persons involved in accident handling. want to

An embodiment of the present invention is a sensor-based secondary that can prevent a secondary accident by detecting vehicle entry into the boundary area behind the accident site through a radar sensor and providing a warning alarm through a patrol car speaker dispatched to the scene We want to provide a traffic accident prevention system.

An embodiment of the present invention detects the distance and speed of a vehicle approaching the scene through a radar sensor and, in the case of a set alarm range, informs the accident handling police officer and the surroundings of the risk of a secondary accident through at least one of light, sound, and vibration We want to provide a sensor-based secondary traffic accident prevention system.

Among the embodiments, the sensor-based secondary traffic accident prevention system includes: a radar sensor installed at an accident site and detecting rear monitoring information including whether or not a vehicle approaches from the rear of the accident site, and the speed and distance of an approaching vehicle; The rear monitoring information detected by the radar sensor is collected and the collected rear monitoring information is analyzed to predict the risk of a secondary accident caused by the vehicle while monitoring the rear of the accident site, and notify the secondary accident risk monitoring server to provide; and an alarm terminal for alerting the accident site to the risk of a secondary accident by interworking with each of the radar sensor and the monitoring server through a dedicated application.

The radar sensor is movable or fixed to a vehicle, and may perform an operation of detecting a vehicle entering within a set boundary area behind the installation or measuring a distance and speed from the detected vehicle.

The monitoring server includes: a rear monitoring information collecting unit for collecting rear monitoring information through the radar sensor; The collected rear monitoring information is analyzed to determine whether an object exists within the sensor detection distance of the radar sensor, and if an object exists, whether it is an approaching object or a retreating object. a secondary accident prediction unit for predicting the possibility of a secondary accident by calculating the speed and the distance to the installation location of the radar sensor; and an alarm operation unit that operates the alarm terminal when predicting a secondary accident and provides a notification of a secondary accident risk through at least one of light, sound, and vibration.

The rear monitoring information collection unit collects images around the accident site taken through a CCTV video surveillance system installed around the accident site or a user's personal portable terminal in the process of accident processing, and stores the collected accident site rear monitoring information and image information. Based on the stored information, machine learning or deep learning can be performed to build big data that generates a secondary accident prediction model.

The secondary accident prediction unit determines whether the vehicle is within the radar range based on the rear monitoring information, and when the vehicle is present in a specific space, divides the vehicle into a first state in which the vehicle approaches and a second state in which the vehicle moves away. It is possible to predict the possibility of two accidents by tracking whether the vehicle is approaching, and detecting whether the speed and distance of the approaching vehicle are within the set reference alarm range.

The secondary accident prediction unit may set the reference alarm range in three stages of caution, warning and danger, and predict the speed and distance of an approaching vehicle in stages, so that notifications are provided in predicted stages.

The warning operation unit may operate a warning light in a patrol car disposed at the accident site to inform the risk of a secondary accident.

The alarm terminal is a wearable device including an LED lamp, worn on the clothes of a police officer who handles an accident scene, and can alert a police officer who is dealing with an accident risk of a secondary accident through light emission of an LED.

The disclosed technology may have the following effects. However, this does not mean that a specific embodiment should include all of the following effects or only the following effects, so the scope of the disclosed technology should not be construed as being limited thereby.

The sensor-based secondary traffic accident prevention system according to an embodiment of the present invention monitors the rear of the accident site based on the sensor and activates an alarm in case of an unexpected situation to secure the safety of police officers or related persons who are handling the accident. .

The sensor-based secondary traffic accident prevention system according to an embodiment of the present invention detects vehicle entry into the boundary area behind the accident site through a radar sensor and provides a warning alarm through the speaker of a patrol car dispatched to the site. Secondary accidents can be prevented.

The sensor-based secondary traffic accident prevention system according to an embodiment of the present invention detects the distance and speed of an on-site approach vehicle through a radar sensor, and when the alarm range is set, the accident is handled through at least one of light, sound, and vibration It can notify the police and the surrounding area of the risk of secondary accidents.

1 is a view for explaining a sensor-based secondary traffic accident prevention system according to the present invention.
FIG. 2 is a view for explaining an embodiment of the radar sensor shown in FIG. 1 .
FIG. 3 is a diagram for explaining a functional configuration of the monitoring server of FIG. 1 .
4 is a flowchart illustrating an embodiment of the operation process of the secondary traffic accident prevention system according to the present invention.
FIG. 5 is a diagram illustrating an embodiment of a graph of a Fast Fourier Transform (FFT) result for the detection signal of the radar sensor of FIG. 1 .
6 is an exemplary diagram illustrating the alarm terminal of FIG. 1 .

Since the description of the present invention is merely an embodiment for structural or functional description, the scope of the present invention should not be construed as being limited by the embodiment described in the text. That is, since the embodiment is capable of various changes and may have various forms, it should be understood that the scope of the present invention includes equivalents capable of realizing the technical idea. In addition, since the object or effect presented in the present invention does not mean that a specific embodiment should include all of them or only such effects, it should not be understood that the scope of the present invention is limited thereby.

On the other hand, the meaning of the terms described in the present application should be understood as follows.

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

When a component is referred to as being “connected” to another component, it may be directly connected to the other component, but it should be understood that other components may exist in between. On the other hand, when it is mentioned that a certain element is "directly connected" to another element, it should be understood that the other element does not exist in the middle. On the other hand, other expressions describing the relationship between elements, that is, "between" and "between" or "neighboring to" and "directly adjacent to", etc., should be interpreted similarly.

The singular expression is to be understood to include the plural expression unless the context clearly dictates otherwise, and terms such as "comprises" or "have" refer to the embodied feature, number, step, action, component, part or these It is intended to indicate that a combination exists, and it should be understood that it does not preclude the possibility of the existence or addition of one or more other features or numbers, steps, operations, components, parts, or combinations thereof.

Identifiers (eg, a, b, c, etc.) in each step are used for convenience of description, and the identification code does not describe the order of each step, and each step clearly indicates a specific order in context. Unless otherwise specified, it may occur in a different order 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 reverse order.

The present invention can be embodied as computer-readable codes on a computer-readable recording medium, and the computer-readable recording medium includes all types of recording devices in which data readable by a computer system is stored. . Examples of the computer-readable recording medium include ROM, RAM, CD-ROM, magnetic tape, floppy disk, optical data storage device, and the like. In addition, the computer-readable recording medium may be distributed in a network-connected computer system, and the computer-readable code may be stored and executed in a distributed manner.

All terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs, unless otherwise defined. Terms defined in general used in the dictionary should be interpreted as having the meaning consistent with the context of the related art, and cannot be interpreted as having an ideal or excessively formal meaning unless explicitly defined in the present application.

1 is a view for explaining a sensor-based secondary traffic accident prevention system according to the present invention.

Referring to FIG. 1 , the secondary traffic accident prevention system 100 may include a radar sensor 110 , a monitoring server 130 , and an alarm terminal 150 .

The radar sensor 110 may be installed at the accident site to monitor surroundings including the rear of the accident site. The radar sensor 110 may be of a fixed type that is fixedly installed at a specific location of a patrol vehicle dispatched to the scene of an accident, or a movable type that is arbitrarily installed at a desired location.

The radar sensor 110 may collect rear monitoring information such as whether or not a vehicle approaches the rear of the accident site, and the distance and speed of the approaching vehicle by using a Doppler-type radar. More specifically, the radar sensor 110 may extract various characteristic information such as signal strength, change amount, and change pattern from the received signal, and may determine various situation information for situation monitoring based on this. For example, contextual information may include whether the vehicle is approaching or moving away from the site of the accident. The context information may include the speed and distance of an approaching vehicle.

The radar sensor 110 may be connected to the monitoring server 130 through a network, and if necessary, a plurality of radar sensors 110 may be installed and operated at the same accident site. In an embodiment, the radar sensor 110 may be network-connected to the monitoring server 130 via a gateway, if necessary.

In addition, the radar sensor 110 may be implemented including an antenna and a receiver for transmitting and receiving radio signals, an amplifier for signal amplification, a signal processor for signal processing, and the like. The radar sensor 110 may use various wireless signals to detect a rear vehicle, and may perform a rear vehicle detection operation using only a predetermined frequency by specifying a frequency band as necessary.

The monitoring server 130 is a server corresponding to a computer or program that can predict the possibility of a secondary accident by analyzing the rear monitoring information collected at the accident site, and remotely controls the alarm terminal 150 to prevent the occurrence of a secondary accident. can be implemented. That is, the monitoring server 130 may analyze the collected information and generate information such as vehicle approach to the rear boundary area of the accident site, possible collision speed and distance of the approaching vehicle as an analysis result, and through this, a monitoring function is provided can do.

The monitoring server 130 may interwork with the gateway through Ethernet, Wi-Fi, etc., and store and manage information collected through the gateway in a database (DBMS).

Meanwhile, the monitoring server 130 may operate in conjunction with an external system. For example, when the monitoring server 130 recognizes the occurrence of a secondary accident, it may be connected to a hospital, 119, police, etc. necessary for emergency rescue to provide related information for a quick response.

The alarm terminal 150 receives on-site rear monitoring information and a notification according to the occurrence of an unexpected situation through the secondary traffic accident prevention system 100, and can alert nearby officials, including police officers, who are handling the accident in various ways. It may correspond to a computing device in the The alarm terminal 150 may be connected to the radar sensor 110 or the monitoring server 130 to perform an operation, may be implemented in the form of a wearable wearable device, is not necessarily limited thereto, and is a device that can be mounted on a patrol car. can also be implemented.

Also, the alarm terminal 150 may install and execute a dedicated program or application for interworking with the monitoring server 130 . Through this, the alarm terminal 150 may use various services provided by the monitoring server 130 .

Also, the alarm terminal 150 may set parameters for interworking with the radar sensor 110 through a dedicated WiFi module app. For example, the alarm terminal 150 may set an IP of a remote server or may set an SSID and password for connection with the WiFi router.

In an embodiment, the warning terminal 150 may notify a police officer at the accident scene of a danger warning of approaching a rear vehicle. To this end, the alarm terminal 150 may include at least one of a speaker, a warning light, and a police officer's smartphone. In particular, the smartphone may be possessed by each police officer and may use sound or vibration. A warning light may be installed on a patrol vehicle deployed at the scene of an accident, and may use sound or light. The alarm terminal 150 implements the LED lamp in the form of an independent wearable device and may be worn by a police officer, and may use the lighting of the LED lamp.

FIG. 2 is a view for explaining an embodiment of the radar sensor shown in FIG. 1 .

Referring to FIG. 2 , the radar sensor 110 may include two types: a movable type (a) and a fixed type (b). The mobile radar sensor 110 may operate by installing a tripod or the like in the rear close to the accident site and then fixedly mounted on the tripod. The fixed radar sensor 110 may be fixedly installed and operated in a patrol vehicle disposed in the rear close to the accident site. The fixed radar sensor 110 may be fixedly installed in various positions of the patrol vehicle by providing a support unit 210 at the bottom thereof, and may be coupled to a neck 230 protruding from the center of the support unit 210, In this case, an angle adjusting unit 250 is provided at the coupling portion to adjust the angle of the radar sensor 110 in a desired direction. Meanwhile, the radar sensor 110 is not limited to the content illustrated in FIG. 2 , and may be implemented in various shapes and sizes depending on the measurement environment.

The radar sensor 110 may detect a vehicle entering within a set boundary area behind the installation or may perform an operation of measuring a distance and speed from the detected vehicle. That is, the radar sensor 110 may include a configuration for detecting vehicle entry into the rear boundary area. In FIG. 2 , the radar sensor 110 may generate a rear monitoring signal as a result of receiving the reflected signal after transmitting the radar signal into the sensor sensing area formed in front of the front part. Here, the sensor detection area may mean a set rear boundary area. For example, the sensor detection area may be formed at a distance of 200 m from the front of the radar sensor 110 and the detection speed may be up to 200 km/h. Based on the police traffic accident site manual, the sensor detection distance can be set to a point 200m behind the accident site that can induce deceleration and lane change to prevent collision accidents.

In an embodiment, the radar sensor 110 may perform an alarm operation. Specifically, the radar sensor 110 may be implemented to include a speaker for voice reproduction, and through this, a situation propagation operation according to the occurrence of an unexpected situation may be performed. The radar sensor 110 may detect a collision situation with a vehicle and notify the surrounding environment through a sound effect or voice guidance.

FIG. 3 is a diagram for explaining a functional configuration of the monitoring server of FIG. 1 .

Referring to FIG. 3 , the monitoring server 130 may include a rear monitoring information collection unit 310 , a secondary accident prediction unit 330 , an alarm operation unit 350 , and a control unit 370 .

The rear monitoring information collecting unit 310 may collect rear monitoring information through the radar sensor 110 . The rear monitoring information collecting unit 310 may collect rear monitoring information including whether a vehicle enters the rear boundary area, the speed and distance of the vehicle entering through the radar sensor 110 installed at the rear of the accident site. In one embodiment, the rear monitoring information collecting unit 310 may collect an accident scene image taken through a video surveillance system such as CCTV installed around the accident site or a user terminal of an accident handling police officer. The rear monitoring information collection unit 310 may build big data by storing the collected accident site rear monitoring information and accident site image information. The monitoring server 130 performs artificial intelligence (AI)-based machine learning or deep learning based on the data collected and stored by the rear monitoring information collection unit 310, It is possible to analyze the cause of occurrence and create a model for predicting the occurrence of secondary accidents.

The secondary accident prediction unit 330 may analyze the collected rear monitoring information to predict the possibility of the occurrence of a secondary accident while performing rear monitoring on the accident site. The secondary accident prediction unit 330 may determine whether an object exists within a sensor detection distance of the radar sensor 110 based on the rear monitoring information, and if the object exists, it may determine whether the object is approaching or retreating. When it is determined that the secondary accident predictor 330 is an approaching object, the speed according to the movement of the object and the distance (m) to the installation location of the radar sensor 110 may be calculated. More specifically, the secondary accident prediction unit 330 may determine whether the vehicle is within the radar range based on the rear monitoring information. When a vehicle exists in a specific space, it may be divided into a first state in which the vehicle approaches and a second state in which the vehicle moves away. The secondary accident prediction unit 330 may track whether the vehicle approaches while the vehicle is present within the radar range. That is, when the distance between the sensor and the vehicle according to the movement of the vehicle is shortened, the secondary accident prediction unit 330 may process the vehicle as approaching.

In an embodiment, the secondary accident prediction unit 330 detects whether each of the approaching vehicle speed and distance falls within a preset reference alarm range, and when the approaching vehicle speed and distance falls within the preset reference alarm range, a secondary accident occurs It can be predicted that there is a possibility. Here, the reference alarm range may correspond to the approach vehicle speed and distance obtained as a learning result through the secondary accident prediction learning model. In one embodiment, the secondary accident prediction unit 330 may set the reference alarm range to three stages of caution, warning and danger, and predict the possibility of secondary accidents of the speed and distance of the approaching vehicle belonging to the reference alarm range in stages. .

In one embodiment, the secondary accident prediction 330 may build a learning model for performing secondary accident prediction by learning characteristic information about the distribution pattern and distribution ratio of each step. More specifically, the secondary accident prediction unit 330 may generate a feature map for each step-by-step distribution pattern, and may extract a feature vector from the feature map as feature information. In addition, the secondary accident prediction unit 330 may generate a feature vector related to the step-by-step distribution ratio, and may build a learning model by learning the step-by-step distribution pattern and the feature vector related to the distribution ratio as learning data.

In this case, the feature map for the step-by-step distribution pattern may be used independently, or may be used after being integrated into one feature map if necessary. The learning model can receive the characteristic information about the distribution pattern and distribution ratio by stage as input and generate the secondary accident prediction result as an output. Accordingly, the secondary accident prediction unit 330 may determine the possibility of the secondary accident in stages based on monitoring information regarding the speed and distance of the approaching vehicle through the learning model.

The alarm operation unit 350 may differentially perform the alarm operation according to the secondary accident prediction stage. The alarm operation unit 350 operates the alarm terminal 150 when a secondary accident is predicted to provide a notification of the secondary accident risk during accident handling through at least one of light, sound, and vibration. In one embodiment, the alarm operation unit 350 may notify the secondary accident risk with one of notification means of light, sound, and vibration in the secondary accident prediction caution stage, and in the warning stage, light and sound, sound and vibration , light and vibration can be operated at the same time to notify the risk of a secondary accident.

In an embodiment, the alarm operation unit 350 may remotely control a warning light installed on a patrol car disposed at the accident site to notify a police officer handling the accident scene and surrounding people of the risk of a secondary accident. In another embodiment, the alarm operation unit 350 may operate the alarm terminal 150 owned by the police officer who is processing the accident scene to notify the police officer of the risk of a secondary accident. The alarm operation unit 350 may display the speed and distance of an approaching vehicle in conjunction with a personal mobile phone at the accident site. Through this display, a police officer or a person in charge of handling an accident can check how far away the vehicle behind is, etc.

The control unit 350 may control the overall operation of the monitoring server 130 , and manage the control flow or data flow between the rear monitoring information collection unit 310 , the secondary accident prediction unit 330 , and the alarm operation unit 350 . have.

4 is a flowchart illustrating an embodiment of the operation process of the secondary traffic accident prevention system according to the present invention.

Referring to FIG. 4 , the secondary traffic accident prevention system 100 detects the entrance of a vehicle on the rear boundary area of the accident site through the monitoring server 130 based on the rear monitoring signal collected by the radar sensor 110 and It is possible to prevent secondary accidents by providing a notification about this.

At this time, the secondary traffic accident prevention system 100 may monitor the approaching vehicle through the radar sensor 110 installed in the rear close to the accident site (step S410). That is, the radar sensor 110 may detect a vehicle approaching within the boundary area behind the installed accident site, and the monitoring server 130 may receive rearward monitoring information from the radar sensor 110 . The rear monitoring information may include whether the vehicle is approaching, the speed and distance of the approaching vehicle.

Thereafter, the secondary traffic accident prevention system 100 may analyze the rear monitoring information through the monitoring server 130 and predict the occurrence of the secondary accident with reference to the analysis result (step S430). Here, the monitoring server 130 may determine whether or not the vehicle approaches, and may predict the occurrence of a secondary accident based on the speed and distance of the approaching vehicle.

On the other hand, the secondary traffic accident prevention system 100 may promptly secure the safety of a police officer who is handling an accident when the occurrence of a secondary accident is predicted and perform an alarm operation for accident prevention (step S450). For example, the monitoring server 130 may operate a speaker or a warning light of a patrol car disposed at the accident site to notify the approach of the rear vehicle, and a notification text message regarding vibration or accident risk in conjunction with a personal mobile phone at the accident site can be sent to evacuate quickly.

FIG. 5 is a diagram illustrating an embodiment of a graph of a Fast Fourier Transform (FFT) result for a detection signal of the radar sensor of FIG. 1 .

5, (a) shows the road condition, (b) shows the detection state of the radar sensor for the road condition of (a), (c) is a graph of the FFT result in the detection state of (b) to be.

Referring to (b) and (c) of FIG. 5 , the zero speed is located at the center of the x-axis and the distance is increased on the y-axis. Approaching objects are shown on the left and objects with zero velocity are shown in the center. Objects retracting are displayed to the right of zero velocity. Through this, it can be seen that the blue vehicle and the black vehicle displayed on the right are moving away from the radar sensor 110 and the white vehicle displayed on the left is approaching the radar sensor 110 . Also, it can be seen that the blue vehicle is moving twice as fast as the black vehicle based on the zero speed.

The secondary traffic accident prevention system 100 may analyze whether the vehicle approaches, the speed and distance of the approaching vehicle, etc., and predict the occurrence of the secondary accident through the FFT result interpretation of the output of the radar sensor 110 .

6 is an exemplary diagram illustrating the alarm terminal of FIG. 1 .

Referring to FIG. 6 , the alarm terminal 150 includes a red-light-emitting diode (LED) 610 and a blue-LED 630 , and may alert a secondary accident risk through LED light emission. The alarm terminal 150 may include a clamp member 650 to be worn on the clothes of a police officer dispatched to the scene of an accident. The alarm terminal 150 emits light to display the risk of an accident when a vehicle approaches from the rear of the police officer who is handling the accident through the radar sensor 110 or the monitoring server 130 and the occurrence of a secondary accident is predicted. to be able to obtain

The sensor-based secondary traffic accident prevention system according to an embodiment is different from the existing prevention system that notifies the vehicle behind the accident site of the occurrence of the accident in the front and bypasses it, the situation of approaching the vehicle from the rear to people who are handling the accident at the accident site It is possible to increase the effectiveness of preventing secondary accidents by making it possible to respond to them.

Although the above has been described with reference to preferred embodiments of the present invention, those skilled in the art can variously modify and change the present invention within the scope without departing from the spirit and scope of the present invention as set forth in the claims below. You will understand that it can be done.

100: sensor-based secondary traffic accident prevention system
110: radar sensor 130: monitoring server
150: alarm terminal
210: support 230: neck
250: angle adjustment unit
310: rear monitoring information collection unit 330: secondary accident prediction unit
350: alarm operation unit 370: control unit
610: red-LED 630: blue-LED
650: clamp member

Claims (8)

a radar sensor installed at the accident site and detecting rear monitoring information including whether or not a vehicle approaches from the rear of the accident site, and the speed and distance of the approaching vehicle;
The rear monitoring information detected by the radar sensor is collected and the collected rear monitoring information is analyzed to predict the risk of a secondary accident caused by the vehicle while monitoring the rear of the accident site, and notify the secondary accident risk monitoring server to provide; and
Including an alarm terminal for alerting the risk of a secondary accident to the accident site by interworking with each of the radar sensor and the monitoring server through a dedicated application,
The monitoring server
a rear monitoring information collecting unit for collecting rear monitoring information through the radar sensor;
Analyzes the collected rear monitoring information to determine whether an object exists within the sensor detection distance of the radar sensor. a secondary accident prediction unit for predicting the possibility of a secondary accident by calculating the speed and the distance to the installation location of the radar sensor; and
A sensor-based secondary traffic accident prevention system, characterized in that it operates the alarm terminal when predicting a secondary accident and includes an alarm operation unit that provides notification of a secondary accident risk through at least one of light, sound, and vibration.
According to claim 1, wherein the radar sensor
Sensor-based secondary traffic accident characterized in that it is made of a mobile or fixed type installed in a vehicle, and performs an operation to detect a vehicle entering within a set boundary area behind the installation or measure the distance and speed from the detected vehicle prevention system.
delete According to claim 1, wherein the rear monitoring information collecting unit
Based on the information stored by collecting the images around the accident site taken through the CCTV video surveillance system installed in the vicinity of the accident site or the user's personal portable terminal in the process of accident processing, and storing the collected accident site rear monitoring information and image information, the machine A sensor-based secondary traffic accident prevention system, characterized in that it builds big data that generates a secondary accident occurrence prediction model by performing learning or deep learning.
According to claim 1, wherein the secondary accident prediction unit
It is determined whether the vehicle is within the radar range based on the rearward monitoring information, and when the vehicle is present in a specific space, the vehicle approaches the vehicle by dividing it into a first state in which the vehicle approaches and a second state in which the vehicle moves away. A sensor-based secondary traffic accident prevention system, characterized in that it predicts the possibility of two accidents by detecting whether the speed and distance of an approaching vehicle belong to a set standard alarm range.
The method of claim 5, wherein the secondary accident prediction unit
Sensor-based secondary traffic accident prevention, characterized in that the reference alarm range is set in three stages of caution, warning and danger, and the speed and distance of an approaching vehicle are predicted in stages to provide notifications in the predicted stages system.
The method of claim 1, wherein the alarm operation unit
A sensor-based secondary traffic accident prevention system, characterized in that it notifies the risk of secondary accidents by operating the warning lights on the patrol cars deployed at the accident site.
According to claim 1, wherein the alarm terminal
A sensor-based secondary traffic accident prevention system, which is worn on the clothes of a police officer handling an accident scene with a wearable device including an LED lamp and alerts the police officer who is handling the accident through the light of the LED, characterized in that it is a secondary accident prevention system.

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