KR20230157756A - A electric vehicle safety driving system - Google Patents

Abstract

The present invention relates to a system that can prevent safety accidents by monitoring the driving conditions of electric vehicles and report accidents to guardians and government offices when an accident occurs. The electric vehicle driving safety system according to an embodiment of the present invention senses the driving information of the electric car, and shares mutual location information with the driving safety device and the electric car and surrounding vehicles to determine whether there is an accident based on the driving information, and It includes a user terminal that determines whether the electric vehicle is dangerous and whether it is running normally based on at least one of driving information and the mutual location information, and outputs a control signal according to the determination result, and the driving safety device receives the control signal. A warning signal is output accordingly.

Description

Electric vehicle driving safety system {A ELECTRIC VEHICLE SAFETY DRIVING SYSTEM}

The present invention relates to a system that can prevent safety accidents by monitoring the driving conditions of electric vehicles and report accidents to guardians and government offices when an accident occurs.

In rural areas, the rate of train falls, falls, overturns, and traffic accidents is higher than in urban areas, and when an accident occurs, follow-up treatment is slower than in urban areas.

This is because in rural areas, many elderly drivers use electric vehicles as their main means of transportation, and because there are few people in the driving area, it is common for accidents to be not reported quickly even if an accident occurs.

Conventionally, when an electric train accident occurs, there is a technology that reports to the police station in batches through a mobile app when an impact amount exceeding a certain threshold is detected for rapid after-treatment.

However, in the case of conventional technology, there is a problem that train accidents cannot be prevented in advance, and when an impact amount exceeding a threshold is detected in a train, the accident is reported to government offices in bulk without judging the severity of the accident, resulting in unnecessary social costs.

The purpose of the present invention is to prevent safety accidents by monitoring the driving conditions of electric trains in real time.

The purpose of the present invention is to determine whether an electric vehicle has been in an accident and whether it is running normally, and to report the accident according to the judgment results.

The objects of the present invention are not limited to the objects mentioned above, and other objects and advantages of the present invention that are not mentioned can be understood by the following description and will be more clearly understood by the examples of the present invention. Additionally, it will be readily apparent that the objects and advantages of the present invention can be realized by the means and combinations thereof indicated in the patent claims.

The electric vehicle driving safety system according to an embodiment of the present invention to achieve the above-mentioned purpose includes a driving safety device that senses the driving information of the electric car and determines whether an accident occurs based on the driving information, and a mutual safety system for the electric car and surrounding vehicles. A user terminal that shares location information, determines whether the train is dangerous and runs normally based on at least one of the driving information and the mutual location information, and outputs a control signal according to the determination result, The driving safety device outputs a warning signal according to the control signal.

The driving safety device includes a sensor unit that detects driving information of the electric vehicle, a warning output unit that outputs the warning signal, a warning output unit that determines whether an accident has occurred based on the driving information, and a warning output unit according to the determination result. Includes a control unit that controls.

The sensor unit includes an acceleration sensor that senses the inclination of the train and a gyro sensor that senses the angular velocity of the train.

The driving safety device outputs the warning signal when the sensing values of the acceleration sensor and the gyro sensor are greater than a preset value.

If an accident is determined by the driving safety device, the user terminal outputs an accident confirmation interface and outputs the alarm signal depending on whether a user operation is input through the accident confirmation interface.

The alarm signal transmits accident occurrence data to a preset guardian and government office through at least one of text and phone calls, and the accident occurrence data includes the location of the user terminal and information about the occupants.

The user terminal senses the user's location information through an internal location sensor, calculates the distance between the train and the surrounding vehicle based on the mutual location information, and determines a dangerous situation if the calculated distance is within a preset distance. .

The user terminal identifies surrounding vehicles within a preset distance from the train based on the mutual location information, and determines the train to be in a dangerous situation according to the direction angle of the surrounding vehicle with respect to the train.

When the electric vehicle is determined to be in a dangerous situation, the user terminal outputs the control signal to the driving safety device and the surrounding vehicles, and the driving safety device and the surrounding vehicles output a warning signal according to the control signal.

The user terminal senses current location information and determines a risk situation depending on whether the location information is within a preset geofence.

It further includes a server that stores driving data for each driving road of the electric vehicle, wherein the server identifies the driving road according to the location information of the user terminal, and compares the driving information with driving data corresponding to the identified driving road. Therefore, it is determined whether normal driving is possible according to the comparison result.

The server determines whether the electric vehicle is running normally according to the error value of the driving data and current driving information.

When the user terminal determines abnormal driving by the server, it outputs an alarm signal and the control signal.

According to the present invention, by monitoring the driving state of an electric train in real time and outputting a warning signal according to the driving state, drivers of the electric train and surrounding vehicles can drive on the road with alertness.

According to the present invention, unnecessary social costs can be avoided by determining whether an electric vehicle has been in an accident and whether it is running normally, and reporting the accident according to the judgment results.

In addition to the above-described effects, specific effects of the present invention are described below while explaining specific details for carrying out the invention.

1 is a diagram showing the electric vehicle driving safety system of the present invention.
Figure 2 is a diagram showing the configuration of the driving safety device of the present invention.
Figures 3 and 4 are diagrams showing the procedure for determining whether an electric train has been in an accident.
Figure 5 is a diagram showing the procedure for determining whether a train is dangerous according to the distance between the train and surrounding vehicles.
Figure 6 is a diagram showing the procedure for determining whether a train is dangerous according to the direction angle of surrounding vehicles with respect to the train.
Figure 7 is a diagram showing the concept of direction angle.
Figure 8 is a diagram illustrating the concept of determining whether a train is dangerous depending on the direction angle of surrounding vehicles with respect to the train.
Figure 9 is a diagram showing the procedure for determining whether or not a train is dangerous in relation to whether or not it enters a geofence.
Figure 10 is a diagram showing an embodiment of determining whether an electric train is running normally.
Figure 11 is a diagram showing another embodiment of determining whether an electric train is running normally.

The above-mentioned objects, features, and advantages will be described in detail later with reference to the attached drawings, so that those skilled in the art will be able to easily implement the technical idea of the present invention. In describing the present invention, if it is determined that a detailed description of known technologies related to the present invention may unnecessarily obscure the gist of the present invention, the detailed description will be omitted. Hereinafter, preferred embodiments according to the present invention will be described in detail with reference to the attached drawings. In the drawings, identical reference numerals are used to indicate identical or similar components.

In this specification, first, second, etc. are used to describe various components, but of course, these components are not limited by these terms. These terms are only used to distinguish one component from another component, and unless specifically stated to the contrary, the first component may also be a second component.

Additionally, in this specification, when a component is described as being “connected,” “coupled,” or “connected” to another component, the components may be directly connected or connected to each other, but there are other components between each component. It should be understood that elements may be “interposed,” or each component may be “connected,” “combined,” or “connected” through other components.

Additionally, as used herein, singular expressions include plural expressions, unless the context clearly dictates otherwise. In the present application, terms such as “consists of” or “comprises” should not be construed as necessarily including all of the various components or steps described in the specification, and some of the components or steps may include It may not be included, or it should be interpreted as including additional components or steps.

In addition, in this specification, when referring to "A and/or B", this means A, B or A and B, unless otherwise specified, and when referring to "C to D", this means unless specifically stated to the contrary. Unless otherwise stated, it means C or higher and D or lower.

The present invention relates to a system that can prevent safety accidents by monitoring the driving conditions of electric vehicles and report accidents to guardians and government offices when an accident occurs.

Hereinafter, an electric vehicle driving safety system according to an embodiment will be described in detail with reference to FIGS. 1 to 11.

Figure 1 is a diagram showing the electric vehicle driving safety system of the present invention.

Figure 2 is a diagram showing the configuration of the driving safety device of the present invention.

Figures 3 and 4 are diagrams showing the procedure for determining whether an electric train has been in an accident.

Figure 5 is a diagram showing the procedure for determining whether a train is dangerous depending on the distance between the train and surrounding vehicles.

Figure 6 is a diagram showing the procedure for determining whether or not a train is dangerous according to the direction angle of surrounding vehicles with respect to the train.

Figure 7 is a diagram illustrating the concept of direction angle.

Figure 8 is a diagram illustrating the concept of determining whether a train is dangerous depending on the direction angle of surrounding vehicles with respect to the train.

Figure 9 is a diagram illustrating the procedure for determining whether or not a train is dangerous for entering a geofence.

Figure 10 is a diagram showing an embodiment of determining whether an electric train is running normally.

Figure 11 is a diagram showing another embodiment of determining whether an electric train is running normally.

Referring to FIG. 1, the electric vehicle driving safety system 10 may include a driving safety device 100, a user terminal 200, and a server 300. However, the electric vehicle driving safety system 10 shown in FIG. 1 is according to one embodiment, and the components forming the invention are not limited to the embodiment shown in FIG. 1, and some components can be added, changed, or deleted as necessary. It can be.

Referring to FIG. 2, the driving safety device 100 can sense the driving information of the electric vehicle, determine whether there is an accident based on the driving information, and output a warning signal according to the control signal of the user terminal 200, which will be described later. You can.

The driving safety device 100 may include a sensor unit 110, a warning output unit 120, a camera 130, and a control unit 140.

The sensor unit 110 can detect driving information of the train, including an acceleration sensor 111 that senses the inclination of the train, and a gyro sensor 112 that senses the angular speed of the train. The sensor unit 110 may include various sensors capable of detecting the driving state of the electric vehicle in addition to the acceleration sensor 111 and the gyro sensor 112 described above.

The warning output unit 120 includes a speaker 121 that outputs a warning sound and a lamp 122 that blinks light to output a warning signal.

At this time, the warning output unit 120 may be operated by the control unit 140, which will be described later. In addition to the speaker 121 and the lamp 122, the warning output unit 120 may include various devices that output warning signals that can be recognized by users and people around them.

The camera 130 photographs the front and rear of the electric train, and the driving safety device 100 can transmit the image captured by the camera 130 to the user terminal 200. Accordingly, the driving safety device 100 can perform the same role as a black box. In contrast, when the driving safety device 100 does not separately include the camera 130, the driving safety device 100 may be embedded in a black box installed in an existing electric vehicle.

The control unit 140 may determine whether an accident has occurred based on the driving information and control the warning output unit 120 according to the determination result.

Referring again to FIG. 1, the user terminal 200 can sense its current location and share mutual location information with the driving safety device 100 and surrounding vehicles. In addition, the user terminal 200 determines whether the electric vehicle is dangerous and whether it is running normally based on at least one of the driving information and mutual location information previously sensed by the driving safety device 100, and outputs a control signal according to the judgment result. can do.

Meanwhile, hereinafter, it should be understood that the location information sensed by the user terminal 200 is the same as the location information of the electric train.

The user terminal 200 may be any device capable of wireless communication with the driving safety device 100 and the server 300, and may include, for example, a smartphone, laptop, tablet, or PC. However, hereinafter, the user terminal 200 will be described as being implemented as a smartphone.

An application that can monitor the driving of an electric train may be pre-installed on the user terminal 200. The application can determine whether the train is dangerous and running normally, which will be described later, and output a control signal.

The server 300 may store driving data for each road of the electric vehicle. The operation of the server 300 will be described later.

Figure 3 shows the sequence in which the driving safety device 100 determines whether an accident has occurred.

The driving safety device 100 may output the warning signal when the sensing values of the acceleration sensor 111 and the gyro sensor 112 of the electric vehicle are greater than a preset value. In detail, the driving safety device 100 compares the sensed acceleration of the electric vehicle with the reference value (S10). If the sensing value is greater than the reference value, the sensed value of the angular velocity of the train can be compared (S20).

If both the acceleration and angular velocity sensing values are greater than the reference value, the control unit 140 may determine that an accident has occurred and control the warning output unit 120 to output a warning (S30). Accordingly, the warning output unit 120 can notify the user and nearby passers-by of the occurrence of an accident by flashing the lamp 122 and outputting a warning sound from the speaker 121.

Next, FIG. 4 shows the operations performed by the user terminal 200 when an accident is determined by the driving safety device 100.

If an accident is determined by the driving safety device 100, the user terminal 200 outputs an accident confirmation interface (S40), checks whether a user operation is input through the accident confirmation interface (S50), and determines the result. An alarm signal can be output according to (S60).

The alarm signal is a signal (e.g., text and/or phone call) transmitted to a preset guardian terminal and a government office terminal and includes accident occurrence data, and the accident occurrence data includes current location information sensed by the user terminal 200 and passenger information. , may include a captured image captured by the camera 130 of the driving safety device 100.

In more detail, when an accident is determined, the user terminal 200 can automatically run an electric vehicle driving monitoring application and receive user input. As an example, the application may display the message “Has an accident occurred?” You can encourage user operation by printing the message and the 'accident release' button. If the user inputs a user operation by pressing the 'accident release' button within a preset time (eg, 30 seconds, 60 seconds), the accident situation may be ended.

On the other hand, if the user fails to press the 'accident release' button within the preset time, the user terminal 200 sends the user terminal 200 to the preset guardian (e.g., child, social worker) terminal and government office (e.g., 119, police station) terminal. Current location information and passenger information can be transmitted by text and/or phone.

Since the user terminal 200 automatically transmits accident occurrence data to the preset guardian terminal and government office terminal, there is an effect that immediate action can be taken even if an accident occurs in a train in a sparsely populated place.

FIG. 5 shows a sequence of an embodiment in which the user terminal 200 determines whether an electric train is dangerous.

The user terminal 200 calculates the distance (d) between the train and surrounding vehicles based on mutual location information, and if the calculated distance (d) is within a preset distance, it can be judged to be a dangerous situation.

In detail, the user terminal 200 can transmit and receive current mutual location information with surrounding vehicles (S100). At this time, the user terminal 200 can communicate with the vehicle's V2X (Vehicle to Everything) device to transmit and receive mutual location information with surrounding vehicles.

The user terminal 200 may calculate the distance between the current location of the train and surrounding vehicles (S110) and determine whether the calculated value is within a preset distance (eg, 50 m) (S120). If the surrounding vehicle is within a preset distance, the user terminal 200 may determine that the electric train is in a dangerous situation and output a control signal (S130). At this time, the control signal can be simultaneously output to the driving safety device 100 and surrounding vehicles, and the driving safety device 100 and surrounding vehicles can output a warning signal according to the control signal.

The driving safety device 100 that receives the control signal can output a warning message from the speaker 121 or flash the lamp 122 to warn the user of vehicle approach, and surrounding vehicles that have received the control signal can alert the driver. The current location information and identification information of the train can be notified so that the driver can pay attention.

Figure 6 shows the sequence of another embodiment in which the user terminal 200 determines whether an electric train is dangerous.

The user terminal 200 identifies surrounding vehicles within a preset distance from the current location information of the train based on mutual location information, and determines the train as a dangerous situation according to the assumed azimuth of the surrounding vehicles with respect to the train. You can.

After receiving the location information of surrounding vehicles (S200), the user terminal 200 first calculates the distance between the current location of the train and the surrounding vehicles (S210), and determines whether the calculated value is within a preset distance (e.g., 50 m). You can make a judgment (S220). If the surrounding vehicle is within a preset distance, the user terminal 200 can next calculate the direction angle of the surrounding vehicle with respect to the electric train (S240).

The direction angle is the angle with respect to the direction of travel of the electric vehicle (EV). Referring to FIG. 7, it can be seen that the surrounding vehicle (V) is located at a direction angle (-a degree to a degree) centered on the current position of the electric vehicle.

Subsequently, if the direction angle of the surrounding vehicle relative to the train is other than a preset angle (e.g., -60 degrees to 60 degrees), the user terminal 200 determines that the train is in a dangerous situation and outputs a control signal ( S250) You can.

In detail with reference to FIG. 8, when the reference direction angle (-a degree to a degree) is set centered on the current position of the electric train (EV), V1 is located within the reference direction angle, so the user terminal 200 is at risk. Don't judge by the situation. However, because V2 is located outside of the reference direction angle, the user terminal 200 may determine this situation to be a dangerous situation and output a control signal.

The control signal that is simultaneously output to the driving safety device 100 and surrounding vehicles has been described previously, so detailed explanation will be omitted here.

In general, train users can easily recognize vehicles approaching from the front, but it is more difficult to recognize vehicles approaching from the rear. Therefore, the present invention has the effect of outputting a warning signal to the user only in essential situations by outputting a warning signal only when a vehicle approaches from the rear of the train.

FIG. 9 shows a sequence of another embodiment in which the user terminal 200 determines whether an electric train is dangerous.

The user terminal 200 can determine a dangerous situation depending on whether the location information of the electric train is within a preset geofence.

Geofence refers to a virtual radius demarcated on actual terrain. In the embodiment of the present invention, the geofence is a steep slope section, an area with difficult visibility, an accident-prone area, a landslide section, a falling rock caution section, a school zone, etc. It can be.

The user terminal 200 may sense the current location information of the train (S300) and determine whether the current location information is within the geofence (S310). If it is determined that the current location information is within the geofence, the user terminal 200 may output a control signal to the driving safety device 100 (S320). The driving safety device 100 that receives the control signal can output a caution message from the speaker 121 or flash the lamp 122 to allow the user to bypass the geofence.

Figure 10 shows an embodiment in which the server 300 determines whether the electric car is running normally.

The server 300 can receive and store the driving information of the electric train from the user terminal 200 (S400). Next, the server 300 may analyze driving information based on a deep learning model (eg, RNN, LSTM, etc. model) (S410). Specifically, the server 300 can use a deep learning model to extract features of various continuous driving information in time series, calculate the average value for each driving information, and use the calculated value as a reference driving behavior value. Can be set (S420).

The driving behavior value setting operation using this deep learning model can be performed whenever driving information of an electric vehicle is received. Specifically, the server 300 can continuously utilize the driving information of electric vehicles that are additionally collected in time series as input data for a deep learning model. Accordingly, the deep learning model can learn the user's driving habits, and the server 300 can set a reference driving behavior value using the continuously learned deep learning model.

The server 300 may compare the driving behavior value and the error value of the current driving information with a preset reference value (S430). If the error value is greater than the reference value, the server 300 may determine that the electric car is running abnormally.

If the server 300 determines that the electric vehicle is running abnormally, the user terminal 200 may output a control signal to the driving safety device 100 (S440) and output an alarm signal to a preset guardian terminal. The driving safety device 100 that receives the control signal can output a caution message from the speaker 121 or flash the lamp 122 to warn the driver. Additionally, the user can prepare for a dangerous situation by sending the current situation via text and/or phone call to the preset guardian terminal.

Figure 11 shows another embodiment in which the server 300 determines whether the electric train is running normally.

The server 300 identifies the driving road according to the current location information of the electric vehicle received from the user terminal 200, compares the driving information with the driving data corresponding to the identified driving road, and determines whether the driving is normal according to the comparison result. You can judge.

More specifically, the server 300 may store driving data for each driving road as shown in Table 1 below, and the driving data may be stored not only for each driving road but also for time. Driving data may include a movement path for each driving road, a movement speed for each driving road, and a movement direction for each driving road.

At this time, the movement path is the direction in which the train moves when moving on the road, the moving speed is the speed at which the train moves when moving on the road, and the direction of movement is the direction in which the train moves during a certain time (e.g., breakfast, lunch, and dinner time). It may be the direction of movement. The server 300 can determine whether the electric vehicle is running abnormally (e.g., sudden stop, departure from route, or deviating driving) through the driving data.

[Driving road] [Driving data] A {Da} B {Db} C {DC}

Referring again to FIG. 11 and Table 1, the server 300 may receive the current location information ((xe, ye)) of the electric vehicle (EV) from the user terminal 200. When the server 300 identifies that the electric vehicle (EV) is driving on the road B, the server 300 compares the location information ((xe, ye)) and the driving data ({Db}), and according to the comparison result, the electric vehicle (EV) ) can be determined whether it is driving normally.

At this time, the server 300 can determine whether the electric vehicle is running normally according to the error value of the driving data and the current driving information. In other words, if the error value between the driving data and the current driving information is greater than a preset value, the server 300 may determine that the electric vehicle is running abnormally.

When the server 300 determines that the electric vehicle is running abnormally, the operations of the user terminal 200 and the driving safety device 100 have been described above, so detailed descriptions will be omitted here.

According to the present invention, by monitoring the driving state of an electric train in real time and outputting a warning signal according to the driving state, drivers of the electric train and surrounding vehicles can drive on the road with alertness.

According to the present invention, unnecessary social costs can be avoided by determining whether an electric vehicle has been in an accident and whether it is running normally, and reporting the accident according to the judgment results.

As described above, the present invention has been described with reference to the illustrative drawings, but the present invention is not limited to the embodiments and drawings disclosed herein, and various modifications may be made by those skilled in the art within the scope of the technical idea of the present invention. It is obvious that transformation can occur. In addition, although the operational effects according to the configuration of the present invention were not explicitly described and explained while explaining the embodiments of the present invention above, it is natural that the predictable effects due to the configuration should also be recognized.

Claims (13)

A driving safety device that senses driving information of an electric vehicle and determines whether an accident has occurred based on the driving information; and
Shares mutual location information with the driving safety device and surrounding vehicles, determines whether the electric vehicle is dangerous and runs normally based on at least one of the driving information and the mutual location information, and sends a control signal according to the determination result. Includes a user terminal that outputs,
The driving safety device outputs a warning signal according to the control signal.
Electric vehicle driving safety system.
According to paragraph 1,
The driving safety device is
A sensor unit that detects driving information of the train,
A warning output unit that outputs the warning signal,
A control unit that determines whether an accident has occurred based on the driving information and controls the warning output unit according to the determination result.
Electric vehicle driving safety system.
According to paragraph 2,
The sensor unit
An acceleration sensor that senses the inclination of the train and
Containing a gyro sensor that senses the angular velocity of the train
Electric vehicle driving safety system.
According to paragraph 3,
The driving safety device outputs the warning signal when the sensing values of the acceleration sensor and the gyro sensor are greater than a preset value.
Electric vehicle driving safety system.
According to paragraph 1,
If an accident is determined by the driving safety device, the user terminal outputs an accident confirmation interface and outputs the alarm signal depending on whether a user operation is input through the accident confirmation interface.
Electric vehicle driving safety system.
According to clause 5,
The alarm signal transmits accident occurrence data to the preset guardian and government office by at least one of text and phone, and the accident occurrence data includes the location of the user terminal and passenger information.
Electric vehicle driving safety system.
According to paragraph 1,
The user terminal senses the user's location information through an internal location sensor, calculates the distance between the train and the surrounding vehicle based on the mutual location information, and determines a dangerous situation if the calculated distance is within a preset distance.
Electric vehicle driving safety system.
According to paragraph 1,
The user terminal identifies surrounding vehicles within a preset distance from the train based on the mutual location information, and determines the train as a dangerous situation according to the direction angle of the surrounding vehicle with respect to the train.
Electric vehicle driving safety system.
According to paragraphs 7 and 8,
When the user terminal determines that the electric vehicle is in a dangerous situation, the user terminal outputs the control signal to the driving safety device and the surrounding vehicles,
The driving safety device and the surrounding vehicles output a warning signal according to the control signal.
Electric vehicle driving safety system.
According to paragraph 1,
The user terminal determines a dangerous situation depending on whether the location information of the train is within a preset geofence.
Electric vehicle driving safety system.
According to paragraph 1,
Further comprising a server that stores driving data for each driving road of the electric vehicle,
The server identifies a driving road according to the location information of the user terminal, compares the driving information with driving data corresponding to the identified driving road, and determines whether driving is normal according to the comparison result.
Electric vehicle driving safety system.
According to clause 11,
The server determines whether the electric vehicle is running normally according to the error value of the driving data and current driving information.
Electric vehicle driving safety system.
According to clause 12,
When the user terminal determines abnormal driving by the server, the user terminal outputs an alarm signal and the control signal.
Electric vehicle driving safety system.

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