KR102153487B1 - Smart traffic safety mirror - Google Patents

Abstract

Provided is a smart road reflector. A foldable reflector includes a first reflector and a second reflector so as to identify vehicles coming in directions different from each other, respectively. A vehicle approach display part displays approaches of the vehicles by using a plurality of light emitting diodes. A control device can determine whether the vehicles approach by using a sensing signal received from a sensing device sensing the approaching vehicles and control the vehicle approach display part so as to display the approaches of the vehicles when determined that the vehicles are approaching.

Description

Smart traffic safety mirror

The present invention relates to a smart road reflector, and more particularly, to a smart road reflector capable of actively recognizing and guiding an obstacle approach in a blind spot.

A general road reflector refers to a reflective mirror that installs a convex mirror at a blind spot of a road or a passage so that a driver who is driving from the opposite side of a vehicle or pedestrian entering the blind spot can identify the pedestrian.

Since the existing road reflector shows vehicles or pedestrians entering the blind spot, the driver judges whether an obstacle is approaching based on the driver's field of view, and therefore, the road reflector does not provide a function to detect vehicle access separately. have.

Therefore, it is common for a driver who uses a reflector to have poor vision or delay recognition of obstacles due to surrounding environments such as weather.

In addition, the convex mirror installed to secure a large viewing angle may cause confusion in the driver's grasp of the position of an obstacle. For example, there is a case of instantaneous misunderstanding whether an object on a convex mirror is your vehicle or a vehicle approaching a blind spot.

Accordingly, the driver or pedestrian subjectively judges the perception of the image generated by the road reflector, and the road reflector cannot actively provide information on the obstacle.

Domestic Patent Registration No. 10-1495709 (registered on February 16, 2015)

In order to solve the above-described problem, the technical problem to be achieved by the present invention is a smart road reflector capable of actively recognizing the approach of an obstacle in the visual zone and actively providing information on the obstacle in place of the existing passive road reflector. To present.

The problem of the present invention is not limited to those mentioned above, and other problems that are not mentioned will be clearly understood by those skilled in the art from the following description.

As a means for solving the above technical problem, according to an embodiment of the present invention, a smart road reflector includes: a folding reflector including a first reflector and a second reflector to identify vehicles coming from different directions; A vehicle access display unit for indicating that the vehicle is approaching using a plurality of light emitting elements; And a control for determining whether the vehicle is approaching using a sensing signal received from a sensing device for sensing the approaching vehicle, and controlling the vehicle access display unit to indicate that the vehicle is approaching when it is determined that the vehicle is approaching. Device; includes.

The control device calculates the access risk of the vehicle in consideration of at least one of a distance from the approaching vehicle, a large vehicle, and a moving speed of the vehicle, and a display state of the vehicle access display unit according to the calculated access risk Adjust.

The control device adjusts the display state of the vehicle approach display unit by using a combination of flashing speeds and light emission colors of light emitting devices set in advance for each of the calculated access risk levels.

The plurality of light-emitting elements are provided to surround the outer periphery of the foldable reflector, and the control device, when it is determined that the vehicle is approaching, is located on the outer periphery of the reflector showing the approaching vehicle among the first and second reflectors. The light emitting devices are processed to indicate that the vehicle is approaching.

The plurality of light-emitting elements are attached to the surfaces of the first and second reflectors to indicate that the vehicle is approaching in the form of at least one of letters and symbols, and the control device, when it is determined that the vehicle is approaching, Among the first and second reflectors, light-emitting elements attached to the surface of the reflecting mirror showing the approaching vehicle are processed to emit light.

The vehicle access display unit includes display panels provided in the form of wings on the left and right sides of the foldable reflector to indicate that the vehicle is approaching using light emitting elements, and the control device determines that the vehicle is approaching Then, processing is performed to display that the vehicle is approaching on a display panel provided in a reflector showing the approaching vehicle among the first and second reflectors.

It further includes an angle adjusting device provided on the rear surface of the folding reflector to adjust the vertical, left and right angles of the first and second reflectors according to the blind spot.

The first reflector and the second radius are physically divided around a center line formed in a vertical direction in the center of the foldable reflector, and vertical, left, and right angles are respectively adjusted by the angle adjusting device.

On the other hand, according to another embodiment of the present invention, a smart road reflector includes: a folding reflector including a first reflector and a second reflector to identify vehicles coming from different directions; A vehicle access display unit displaying that a vehicle is approaching using a plurality of light emitting elements provided in the first and second reflectors; And an angle adjusting device provided on the rear surface of the folding reflector to adjust the vertical, left and right angles of the first reflector and the second reflector.

The first reflector and the second radius are physically divided around a center line formed in a vertical direction in the center of the foldable reflector, and vertical, left and right angles are respectively adjusted by the angle adjusting device.

According to the present invention, the road reflector is divided into two, and each reflector is allocated to illuminate the road where obstacles such as vehicles may occur, and the light emission state of the divided reflector is adjusted according to the risk of obstacles approaching from different directions. Alternatively, it is possible to allow pedestrians to intuitively recognize the degree of danger as well as whether or not an obstacle is approaching.

In addition, according to the present invention, it is possible to increase the effect of road traffic safety by applying a smart road reflector to various roads such as corners of intersections with blind spots, roads on the back side where sidewalks and roadways are not clearly separated, alleyways, and sharp curves. .

In addition, according to the present invention, it is possible to prevent the occurrence of problems such as erroneous judgment and erroneous information of approaching obstacles by dualizing the emergency situation identification procedure with intelligent CCTV image analysis and auxiliary sensors (noise, emergency bell, etc.).

The effects of the present invention are not limited to those mentioned above, and other effects that are not mentioned will be clearly understood by those skilled in the art from the following description.

1 is a diagram schematically showing a first smart road reflector according to an embodiment of the present invention;
FIG. 2 is an exemplary view when the first smart road reflector shown in FIG. 1 is installed at an intersection;
3 is a block diagram illustrating a first smart road reflector shown in FIG. 1;
4 and 5 are views showing the front and rear surfaces of a folding road reflector according to an embodiment of the present invention;
6 is an exemplary view of first and second left and right angle adjustment devices,
7A, 7B, and 7C are views showing a front view, a rear view, and a plan view of a smart road reflector when light emitting elements are provided on the outer side of the folding reflector.
8 and 9 are diagrams showing a front view of a smart road reflector when third and fourth light emitting devices are further provided on the surface of the foldable reflector;
10A, 10B, 10C, and 11 are views showing a front view, a rear view, and a plan view of the smart road reflector when the fifth and sixth light emitting devices are provided on the side of the foldable reflector, and,
12 is a diagram illustrating an example of a color configuration of light emitting devices.

The above objects, other objects, features, and advantages of the present invention will be easily understood through the following preferred embodiments related to the accompanying drawings. However, the present invention is not limited to the embodiments described herein and may be embodied in other forms. Rather, the embodiments introduced herein are provided so that the disclosed content may be thorough and complete, and the spirit of the present invention may be sufficiently conveyed to those skilled in the art.

In the present specification, when an element, component, device, or system is referred to as including a program or a component made of software, the element, component, device, or system is the program or software, even if there is no explicit mention. It should be understood as including hardware (e.g., memory, CPU, etc.) or other programs or software (e.g., a driver required to drive an operating system or hardware) required to execute or operate.

In addition, it should be understood that an element (or component) may be implemented in software, hardware, or any form of software and hardware, unless otherwise specified in the implementation of any element (or component).

In addition, terms used in the present specification are for describing exemplary embodiments and are not intended to limit the present invention. In this specification, the singular form also includes the plural form unless specifically stated in the phrase. As used in the specification, "comprises" and/or "comprising" does not exclude the presence or addition of one or more other elements.

Hereinafter, with reference to the accompanying drawings, specific technical content to be implemented in the present invention will be described in detail. In some cases, it is mentioned in advance that parts that are commonly known in describing the invention and are not largely related to the invention are not described in order to avoid confusion in the description of the invention without any reason.

Each configuration of the smart road reflector 100 shown in FIG. 3 indicates that it may be functionally and/or logically separated, meaning that each configuration is separated into a separate physical device or written in a separate code. It may be easily inferred by the average expert in the art of the present invention.

1 is a diagram schematically showing a smart road reflector 100 according to an embodiment of the present invention, and FIG. 2 is an exemplary view when the smart road reflector 100 shown in FIG. 1 is installed at an intersection.

1 and 2, the smart road reflector 100 according to an embodiment of the present invention is provided on the post 10, and blind spots such as road intersections, rear roads, and sharp curves occur in different directions. It may be installed in a place where it is difficult for the user to easily recognize the vehicle being approached.

The smart road reflector 100 recognizes the approach of an obstacle existing in the blind spot based on a sensing signal received from the sensing device 500 that senses a vehicle approaching from a different direction, and determines the risk caused by the obstacle in another direction. It can be provided so that the user (or driver) located at can recognize it.

The sensing device 500 includes first and second cameras 510 and 520 provided in the post 10, loop sensors (not shown) buried in the road surface, magnetic sensors (not shown), The presence of a vehicle may be sensed using at least one of piezo sensors (not shown) and microwave sensors (not shown) that check whether the vehicle exists through contact with the vehicle's wheels. 1 illustrates the first and second cameras 510 and 520 as an example of the sensing device 500, but is not limited thereto.

In the case of FIG. 2, P and Q are roads, A and B are vehicles running in the direction of the arrows on roads P and Q, respectively, and obstacles T are objects that block the view of the drivers of vehicles A and B. Forest, signboard, Buildings, etc., and R and S indicated by dotted lines are the first and second stop lines designated by the manager in advance, and are designated at the end points where each road P and R intersect. The positions of the first and second stop lines R and S can be changed according to the position where the sensing device 500 is provided, and become a reference when calculating the separation distance to be described later.

In addition, at the intersection as shown in FIG. 2, the smart road reflector 100 is installed at a position diagonally opposite to the obstacle T, and the vehicle B is the smart road reflector 100 from the perspective of the driver of the vehicle A. The image b is shown on the right side of (that is, the first reflector 210), and from the perspective of the driver of the vehicle B, the vehicle A is on the left side of the smart road reflector 100 (that is, the second reflector 220). Can be seen.

When the first and second cameras 510 and 520 are applied as a sensing device, the first camera 510 is installed to photograph an area including the first reference line R set on the road P, and the second camera ( The 520 may be installed to photograph an area including the second reference line S set on the road Q. The first camera 510 and the second camera 520 may respectively photograph roads P and Q and transmit a video to the smart road reflector 100.

In addition, when loop sensors are applied as a sensing device, the loop sensors (not shown) may transmit a sensing signal to the smart road reflector 100 whenever vehicle contact is sensed on the road.

3 is a block diagram illustrating the smart road reflector 100 shown in FIG. 1.

Referring to FIG. 3, the smart road reflector 100 may include a folding road reflector 200, a vehicle access display unit 300, and a control device 400.

The folding road reflector 200 includes a first reflector 210 and a second reflector 220 to identify vehicles coming from different directions, respectively. The'other direction' may include other driving directions other than this driving direction based on the driving direction of the driver. In the case of FIG. 2, based on the vehicle A, it may be said that the vehicle B driving on the road R is approaching from a direction different from the vehicle A.

4 and 5 are views showing in detail the front and rear surfaces of the foldable road reflector 200 according to an embodiment of the present invention.

4 and 5, the folding road reflector 200 includes a first reflector 210, a second reflector 220, a center line 230, a first rear panel 240, and a second rear panel 245. , Hinge 250, a first left and right angle adjusting device 260, a second left and right angle adjusting device 265, an up and down angle adjusting device 270, a central shaft 280, a first cover 290 and a second cover (295) may be included.

The first reflector 210 and the second reflector 220 are physically divided around a center line 230 formed in the vertical direction in the center of the folding road reflector 200, and a convex mirror may be used.

The first rear panel 240 and the second rear panel 245 are also physically divided around the center line 230. The first reflector 210 and the first rear panel 240 form a pair and move together, and the second reflector 220 and the second rear panel 245 form a pair and move together. For this, it may be described that the first reflector 210 and the second reflector 220 move.

The first reflector 210 and the second reflector 220 may have vertical, left and right angles adjusted by angle adjusting devices 260, 265, and 270, respectively. Accordingly, the first reflector 210 must be illuminated according to the surrounding environment in which the smart road reflector 100 is installed, the road environment (eg, curve rate, presence of sharp curves, etc.), and the size of obstacles (trees, buildings, etc.). The angle may be adjusted so that the driver of the road Q can visually check the road illuminated by the first reflector 210 while illuminating the road to be performed (eg, road P). This is the same for the second reflector 220.

The hinge 250 connects the first rear panel 240 and the second rear panel 245.

The first left and right angle adjusting device 260, the second left and right angle adjusting device 265, and the vertical angle adjusting device 270 are provided on the rear side of the folding road reflector 200, and the smart road reflector 100 is provided. The angles of the first reflector 210 and the second reflector 220 may be adjusted according to the degree of the radius of rotation of the curve or the environment of the blind spot.

In detail, the first left and right angle adjustment device 260 is connected to the first rear panel 240 and the central axis 280, the angle (or inclination) of the first reflector 210 with respect to the central axis 280 ) Can be adjusted. The image projected by the first reflector 210 is changed according to the angle of the first reflector 210.

The second left and right angle adjusting device 265 is connected to the second rear panel 245 and the central axis 280, and can adjust the angle (or inclination) of the second reflector 220 based on the central axis 280. have. The image projected by the second reflector 220 is changed according to the angle of the second reflector 220.

The vertical angle adjustment device 270 is connected to the central axis 280 and the post 10 to adjust the vertical angles of the first and second reflectors 210 and 220. Directions such as the first reflector 210 and the second reflector 220 facing the ground, the sky, or the front may be adjusted according to the adjustment of the vertical angle.

In FIG. 5, one vertical angle adjusting device 270 is shown, but the present invention is not limited thereto, and each of the vertical angle adjusting devices (not shown) is provided on the first rear panel 240 and the second rear panel 245. It is provided, and one end of the vertical angle adjustment devices (not shown) may be connected to the post 10 to individually adjust the vertical angles of the first and second reflectors 210 and 220.

6 is an exemplary view of the first and second left and right angle adjustment devices 260 and 265.

Referring to FIG. 6, the first and second left and right angle adjusting devices 260 and 265 are fixed to the first and second rear panels 240 and 245 in the form of hooks or pressing plates, and The angle can be adjusted by the length adjustment device.

The central axis 280 may be provided with respect to the center line 230.

Referring back to FIG. 3, the vehicle access display unit 300 may display that the vehicle is approaching from a different direction using the first and second light emitting devices 310 and 320. The first and second light emitting devices 310 and 320 may be a light-emitting diode (LED) device. The vehicle access display unit 300 may be a module including a driving unit for driving the light emitting device as well as the light emitting device.

7A, 7B, 7C, 8, and 9 are diagrams for describing various embodiments of the vehicle access display unit 300.

7A, 7B, and 7C show a front view, a rear view, and a plan view of the smart road reflector 100 when the first and second light emitting devices 310 and 320 are provided outside the foldable road reflector 200 It is a diagram showing.

Referring to FIGS. 7A, 7B, and 7C, the first and second light emitting devices 310 and 320 of the vehicle access display unit 300 may be provided to surround the outer periphery of the folding road reflector 200. The first light-emitting elements 310 provided outside the first reflector 210 and the second light-emitting elements 320 provided outside the second reflector 220 include a first reflector 210 and a second reflector. The light may be selectively emitted according to the road conditions (ie, the access risk of the vehicle being driven) respectively illuminated by the 220, and the flashing speed and color of the light emission may be changed.

8 and 9 are views illustrating a front view of the smart road reflector 100 when the third and fourth light emitting devices 330 and 340 are further provided on the surface of the foldable road reflector 200.

8 and 9, the vehicle access display unit 300 further includes third and fourth light emitting elements 330 and 340 attached to the surfaces of the first and second reflectors 210 and 220. Using at least one of a letter and a symbol indicating that the vehicle is approaching may be displayed. The third and fourth light emitting devices 330 and 340 displayed in the form of letters or symbols may change their flashing speed or light emission color according to an approach risk of a driving vehicle. For example, when there is no vehicle approaching in both directions, since it is in a safe state, all of the third and fourth light emitting devices 330 and 340 may be turned off or emit green.

10A, 10B, 10C, and 11 are front and rear views of the smart road reflector 100 when the fifth and sixth light emitting devices 350 and 360 are provided on the side of the folding road reflector 200 It is a diagram showing a diagram and a plan view.

10A, 10B, 10C, and 11, the vehicle approach display unit 300 displays first and second light emitting devices 350 and 360 indicating that the vehicle is approaching. Display panels 370 and 380 may be included. The first and second display panels 370 and 380 may be provided in the form of wings on the left and right sides of the foldable road reflector 200, and the fifth and sixth light emitting devices 350 and 360 are letters or symbols. You can display the access risk of the vehicle being driven by using.

Referring back to FIG. 3, the control device 400 uses a sensing signal received from a sensing device 500 that senses a vehicle approaching a road with a smart road reflector 100 or a vehicle approaching from a blind spot. When it is determined whether or not the vehicle is approaching, and when it is determined that the vehicle is approaching, the vehicle access display unit 300 may be controlled to indicate that the vehicle is approaching. The control device 400 may be provided between, for example, the first reflector 210 and the first rear panel 240, or may be provided near a road where the smart road reflector 100 is provided.

To this end, the control device 400 may include a communication interface unit 410, a storage unit 420 and a control unit 430.

The communication interface unit 410 may perform one-way or two-way communication with the sensing device 500 and may receive a sensing signal from the sensing device 500 and transmit it to the controller 430.

The storage unit 420 may include a volatile memory and/or a nonvolatile memory, and in order to implement and/or provide an operation, function, etc. provided by the control device 400, the components 410 to 430 Related instructions or data, one or more programs and/or software, and the like may be stored.

The program stored in the storage unit 420 may include a vehicle access determination program for calculating an access risk of a vehicle approaching from a blind spot and controlling the operation of the vehicle access display unit 300 according to the calculated access risk. .

In addition, in the storage unit 420, a mapping table for controlling the display state of the vehicle access display unit 300 according to the access risk of the vehicle to be described later may be stored as shown in [Table 1].

Vehicle approach risk (f) Classification of risk LED color Flashing speed 0.7<f≤1 High risk All red High speed (3 times/sec) 0.2<f≤0.7 Medium risk Red (2/3) + yellow (1/3) mixed Medium speed (2 times/sec) 0<f≤0.2 Low risk Red (1/3) + yellow (2/3) mixed Low speed (1 time/second) 0 safety All green stop

In [Table 1], for example, in the case of an intermediate danger state, the first and second light emitting devices 310 and 320 are arranged in the order of red, red, yellow, red, red, and yellow colors as shown in FIG. It emits light and can flicker at a rate of 2 times per second. 'Safety' means that no vehicles are approaching from the blind spot.

The controller 430 may control the operation of the control device 400 and the vehicle access display unit 300 by executing one or more programs stored in the storage unit 420. For example, the control unit 430 calculates the access risk by executing the stored vehicle access determination program, and controls the driving of the light emitting elements 310 to 360 displayed on the vehicle access display unit 300 according to the calculated access risk. can do.

In detail, the control unit 430 calculates the access risk of the vehicle in consideration of at least one of the distance from the vehicle approaching in the blind spot, the presence of a large vehicle, and the moving speed of the vehicle, and the vehicle access display unit according to the calculated access risk The display state of 300 can be adjusted. [Equation 1] is an equation for calculating the approach risk of a vehicle.

In [Equation 1], the separation distance refers to the distance between the stop line determined in advance on the road and the vehicle approaching with the smart road reflector 100, the driving speed refers to the speed of the vehicle, and the large vehicle refers to a large vehicle classified according to the standard in advance. .

The weight of whether the vehicle is a large vehicle indicates that the larger the approaching vehicle is, the more dangerous it is, and may have a value between 0 and 1. That is, among vehicles that can be driven on the road, the largest and heaviest vehicle is 1, the smallest and lightest vehicle is 0, and the middle vehicle has a value greater than 0 and less than 1.

For example, in the case of a general national highway that classifies vehicle types into 12 types, 0 is input for the weight of whether a vehicle is a type 1 vehicle or a large vehicle, 0.1 for type 2 and type 3, and 0.2, ??, 12 for type 4 vehicles. In the case of a vertical vehicle, 1 may be input to the weight of whether the vehicle is a large vehicle. To this end, the storage unit 420 may store a value for a weight of whether a large vehicle is used for each of 12 vehicle types.

Or, if the vehicle is less than 1 ton, the weight of whether it is a large vehicle is 0, for a 1 to 4 ton vehicle, 0.25 for a 5 to 10 ton vehicle, 0.5 for 5 to 10 ton vehicle, 0.75 for 11 to 40 ton vehicle, and large vehicle for 41 ton or more vehicles. 1 may be input as whether or not the weight. To this end, the storage unit 420 may store a value for a weight of whether a large vehicle is based on the weight of the vehicle.

Alternatively, the control unit 430 may calculate the weight of whether a large vehicle is based using [Equation 2].

Here, Y is the weight of whether or not a large vehicle is large, and X is the vehicle weight (ton), which is a maximum of 42 tons.

는 스마트 도로 반사경(100)이 구비되는 현장의 여건을 고려하여 변경가능하다. 예를 들어, 현장에 대형차가 주행하는 빈도가 사전에 정해진 기준보다 높은 경우,

의 비율을 높이고,

와

를 낮추며, 현장에서 고속으로 다니는 차량이 기준보다 많을수록

의 비율을 높이고,

와

의 비율을 낮출 수 있다.Also,

Can be changed in consideration of the conditions of the site where the smart road reflector 100 is provided. For example, if the frequency of large vehicles driving on the site is higher than a predetermined standard,

Increase the ratio of,

Wow

And the more vehicles traveling at high speed in the field, the more

Increase the ratio of,

Wow

You can lower the rate of

When the sensing device 500 includes the first camera 510 and the second camera 520 described with reference to FIG. 2, the first camera 510 or the second camera 520 captures a video of the road. It can be transmitted as a sensing signal. Hereinafter, a case where the first camera 510 photographs the road P will be described as an example.

The control unit 430 analyzes, for example, a 1/32 frame still image among the moving picture signals received from the first camera 510, and the vehicle and the stop line R approaching the stop line (for example, R in FIG. 2) ) Can be calculated. For example, the controller 430 may calculate a separation distance by comparing an actual surrounding structure near the stop line R with a surrounding structure existing in the still image.

In addition, the controller 430 may calculate a vehicle speed by calculating a position change amount of a vehicle positioned in continuously received frames (ie, still images).

In addition, the controller 430 may determine whether the vehicle is a large vehicle by using the pixel occupancy amount occupied by the object determined as the vehicle in the still image of 1/32 frame.

On the other hand, when the sensing device 500 is a roof sensor embedded in a road, the controller 430 calculates the separation distance by estimating the vehicle's moving position according to the vehicle speed and time change based on the buried position of the fixed roof sensor. can do.

In addition, the control unit 430 may calculate the vehicle driving speed by using the reaction time of two roof sensors of the same size that are buried at a certain distance apart.

In addition, the controller 430 may determine whether the vehicle is a large vehicle by using data of a time during which the vehicle occupies the roof sensor and driving speed data.

The control unit 430 may selectively use various well-known technologies for the algorithm for calculating/determining whether or not a distance, a driving speed, and whether a large vehicle is a large vehicle from the sensing signal of the sensing device 500, and thus a detailed description thereof will be omitted.

When the approach risk of the vehicle is calculated by applying the calculated or determined separation distance, driving speed, and large vehicle to [Equation 1], the controller 430 performs the calculated access risk in advance as shown in [Table 1]. The display state of the vehicle access display unit 300 may be adjusted by using a combination of the set flashing speed and emission color of the light emitting devices.

According to [Table 1], the controller 430 increases the flashing speed of the light emitting devices 310 to 360 as the calculated access risk increases, and the plurality of light emitting devices 310 to 360 all emit red light. And, as the calculated access risk is lower, the flashing speed of the light-emitting devices may be reduced, and the ratio of emitting red light among the plurality of light-emitting devices 310 to 360 may be reduced. In addition, when the calculated access risk is 0, the control unit 430 stops the flashing of the light-emitting elements 310 to 360, and the vehicle access display unit ( 300) can be adjusted.

For example, when the vehicle access display unit 300 is provided as shown in FIG. 8, the control unit 430 may display the first to fourth levels according to the calculated access risk for the vehicle approaching on the road illuminated by the first reflector 210. The blinking speed and light emission color of the light emitting devices 310 to 340 can be adjusted. At this time, if the vehicle is approaching from both directions, that is, the vehicle is approaching on the road illuminated by the first reflector 210 and the road illuminated by the second reflector 220, and the calculated access risk of the vehicle is high and safety, , The controller 430 emits light in the first light-emitting device 310 and the third light-emitting device 330 in red, and the second light-emitting device 320 and the fourth light-emitting device 340 in green Can be controlled to do.

On the other hand, although it has been described and illustrated in connection with a preferred embodiment for exemplifying the technical idea of the present invention, the present invention is not limited to the configuration and operation as shown and described as described above, and deviates from the scope of the technical idea. It will be appreciated by those skilled in the art that a number of changes and modifications can be made to the present invention. Accordingly, all such appropriate changes, modifications, and equivalents should be considered to be within the scope of the present invention. Therefore, the true technical protection scope of the present invention should be determined by the technical idea of the attached registration claims.

100: smart road reflector 200: foldable road reflector
210, 220: first and second reflectors 230: center line
240, 245: first and second rear panels 250: hinge
260, 265: first and second left and right angle adjustment devices
270: vertical angle adjustment device 280: central axis
290, 295: first and second covers 300: vehicle access indicator
310~360: first and sixth light emitting devices 370, 380: first and second display panels
400: control device 410: communication interface unit
420: storage unit 430: control unit
500: sensing device

Claims (10)

A folding road reflector including a first reflector and a second reflector, and a first rear panel and a second rear panel provided on rear surfaces of the first and second reflectors to identify vehicles coming from different directions, respectively;
A vehicle access display unit for indicating that the vehicle is approaching using a plurality of light emitting elements; And
Determine whether the vehicle is approaching using a sensing signal received from a sensing device that senses the approaching vehicle, and when it is determined that the vehicle is approaching, the vehicle access display unit is controlled to indicate that the vehicle is approaching, and the A control device for calculating an access risk of the vehicle in consideration of at least one of a distance to an approaching vehicle, a large vehicle, and a moving speed of the vehicle, and then adjusting a display state of the vehicle access display unit according to the calculated access risk; Including,
The first and second radiuses,
It is physically divided around a center line formed in a vertical direction in the center of the folding road reflector,
The folding road reflector,
A first left and right angle adjusting device connected to a first rear panel and a central axis on the rear surface of the folding road reflector to adjust a left and right angle of the first reflector based on the central axis;
A second left and right angle adjusting device connected to the second rear panel and the central axis on the rear surface of the folding road reflector to adjust a left and right angle of the second reflector based on a central axis; And
A vertical angle adjustment device connected to the central axis and the support to adjust the vertical angle of the first and second reflectors; further comprising,
The center line, the central axis, the vertical angle adjustment device and the support are provided to be in a straight line in a direction facing the folding road reflector,
The control device adjusts the display state of the vehicle access display unit using a combination of flashing speeds and light emission colors of light emitting devices set in advance for each of the calculated access risk,
When the plurality of light emitting devices are provided to surround the outer periphery of the folding road reflector, the control device,
If it is determined that the vehicle is approaching, processing to display that the vehicle is approaching to light-emitting elements provided on the outer side of the reflecting mirror showing the approaching vehicle among the first and second reflectors,
When the vehicle access display unit includes display panels provided in the form of wings on the left and right sides of the foldable road reflector to indicate that the vehicle is approaching using light emitting elements, the control device,
If it is determined that the vehicle is approaching, processing to display that the vehicle is approaching on a display panel provided on a reflector showing the approaching vehicle among the first and second reflectors,
The control device is a smart road reflector, characterized in that calculating the access risk of the vehicle using the following equation:

Here, α is 0.65, β is 0.25, γ is 0.10, the separation distance is the distance between the stop line determined in advance and the vehicle approaching with the folding road reflector, the driving speed is the speed of the approaching vehicle, whether the large vehicle is The weight has a larger value as the approaching vehicle is a large vehicle. delete delete delete The method of claim 1,
The plurality of light emitting devices are attached to the surfaces of the first and second reflectors to indicate that the vehicle is approaching in at least one of a letter and a symbol,
The control device,
When it is determined that the vehicle is approaching, the light emitting elements attached to the surface of the reflecting mirror showing the approaching vehicle among the first and second reflectors are processed to emit light. delete delete delete delete delete

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