KR102459554B1 - Visual vehicle recognition system for pedestrians - Google Patents

Abstract

The present invention relates to a vehicle recognition system for pedestrians, and more particularly, a vehicle detection unit having a plurality of detection sensors spaced apart from each other at regular intervals detects the presence or absence of a vehicle, and the control unit detects the presence of the vehicle. Based on the information, the vehicle position, the vehicle speed, and the vehicle traveling direction are specified, and the danger section and warning section are calculated based on the specified vehicle information, and the lighting driver is based on the information of the calculated risk section and warning section. Based on the first signal for lighting the danger section and the second signal for lighting the warning section, the lighting unit receives the first signal and the second signal and turns on the red indicating the danger section according to the first signal, It relates to a visual vehicle recognition system for pedestrians that lights a blue color indicating a warning section according to a second signal, and is installed on the left and right outskirts of the road to visually confirm the risk of the vehicle to the pedestrian.

Description

Visual vehicle recognition system for pedestrians

The present invention relates to a visual vehicle recognition system for pedestrians, and more particularly, to specify the position, direction and speed of the vehicle based on the weight of the vehicle sensed by a vehicle detection unit having a plurality of pressure sensors, The danger zone is set based on the specified vehicle information and the lighting in the danger zone is turned on to visually recognize the danger zone when pedestrians cross the road. It relates to a visual vehicle recognition system for pedestrians that can visually recognize that a vehicle is in a dangerous area through a lighting unit that is turned on even when the vehicle does not recognize the vehicle using a smart phone or the like.

According to a press release released by the Road Traffic Authority, the average number of pedestrian traffic accidents per 100,000 population in Korea in 2019 measured by the Traffic Accident Analysis System (TAAS) was 2.51, which is the OECD average of pedestrian traffic accidents per 100,000 population. This is about 2.5 higher than the number of deaths of 1.0*.

Also, by age, 0.34 people under 14, 0.49 between 15 and 20, 0.75 between 21 and 30, 0.5 between 31 and 40, 1.16 between 41 and 50, 2.7 between 51 and 60, and 2.7 between 61 and 64 With 3.46 people and 9.26 people over 65, elderly pedestrians over 65, who have relatively poor cognitive abilities, account for 57% of traffic accident deaths.

Accordingly, there is a need to develop a system for recognizing a vehicle to a pedestrian even if the pedestrian does not recognize the vehicle when there is a vehicle on the road.

As an example of a conventional system for recognizing a vehicle to a pedestrian, it is disclosed in Korean Patent Laid-Open No. 10-2006-0088433 (published on Aug. 4, 2006). In brief, when a vehicle traveling at night is detected by a vehicle detection unit installed on the road, the lighting unit installed in the crosswalk is turned on, so that the vehicle driver can accurately recognize the location of the crosswalk, and pedestrians can detect the proximity of the vehicle. A safety system for crosswalks that is configured to be known is posted.

As another example of a conventional system for recognizing a vehicle to a pedestrian, it is disclosed in Korean Patent Registration No. 10-1270126 (registered on May 27, 2013). In brief, when a vehicle traveling at night is detected by two vehicle detection units installed on the road, the speed of the vehicle is specified by the time difference when the vehicle is detected by each vehicle detection unit, and the brightness of the lighting unit installed in the crosswalk is measured. A safety system for crosswalks has been posted so that the vehicle driver can accurately recognize the location of the crosswalk by adjusting it, and the pedestrian can know the degree of approach of the vehicle by the brightness of the lighting unit.

However, in the system for recognizing a vehicle to a pedestrian of the prior art, the area in which the pedestrian can recognize the vehicle is limited to a part of the road rather than the entire road, and the lighting unit is installed on the road so that the There is a problem in that there is a restriction on the passage of vehicles.

Republic of Korea Patent Publication No. 10-2006-0088433 (published on Aug. 4, 2006) Republic of Korea Patent Registration No. 10-1270126 (Registered on May 27, 2013)

The present invention specifies the position, direction, and speed of the vehicle based on the weight of the vehicle sensed by the vehicle detection unit having a plurality of pressure-sensitive sensors, so that the stopping distance according to the speed of the vehicle from the location of the vehicle is determined in the dangerous section. The purpose is to provide a visual vehicle recognition system for pedestrians that can be set as

In addition, the present invention turns on the lighting unit in the danger zone so that when a pedestrian crosses the roadway, the danger zone can be visually recognized from the illuminated lighting part. The purpose of this is to provide a visual vehicle recognition system for pedestrians that can visually recognize that it is a dangerous section in which a threat of a vehicle exists even when the vehicle is not recognized using the

In addition, the present invention can recognize the warning section visually from the illuminated lighting section when the pedestrian crosses the road by turning on the lighting unit in the warning section, so that the vehicle is present in the blind spot of the pedestrian's view, or the pedestrian is using a smartphone, etc. The purpose of this is to provide a visual vehicle recognition system for pedestrians that can visually recognize that the warning section is a warning section in which a vehicle threat exists even when the vehicle is not recognized using the

In addition, an object of the present invention is to provide a visual vehicle recognition system for pedestrians that is installed so that the lighting unit installed on the road does not limit the height of the vehicle.

The present invention, detecting the presence or absence of a vehicle, a vehicle detection unit having a plurality of detection sensors spaced apart from each other at regular intervals; a control unit for specifying a position of a vehicle, a speed of a vehicle, and a traveling direction of the vehicle based on the information sensed by the vehicle detection unit, and calculating a dangerous section and a safe section based on the specified vehicle information; a lighting driver for generating a first signal for illuminating the danger section and a second signal for illuminating the warning section based on the information on the danger section and the safety section calculated by the control unit; and receiving the first signal and the second signal of the lighting driving unit, turning on red indicating the danger section according to the first signal, turning on blue indicating the warning section according to the second signal, and turning on the left and right outer edges of the road It includes; a lighting unit installed on the road.

In addition, the dangerous section calculated by the control unit of the present invention is formed with a constant length in the traveling direction of the vehicle based on the vehicle, and the length of the dangerous section is 9m when the speed of the vehicle is 20km, and 15m when the speed of the vehicle is 30km , 22m when the vehicle speed is 40km, 32m when the vehicle speed is 50km, 44m when the vehicle speed is 60km, 58m when the vehicle speed is 70km, 76m when the vehicle speed is 80km, and the vehicle speed is At 100 km, it is 112 m.

In addition, the warning section calculated by the control unit is formed with a length corresponding to 10m or 20m at the point where the dangerous section ends in the traveling direction of the vehicle with respect to the vehicle.

In addition, when the warning section and the dangerous section calculated by the presence of a plurality of vehicles on the road overlap, the controller of the present invention determines the overlapping section as a dangerous section.

In addition, the lighting unit of the present invention can be lit in red or blue according to the control of the current, and can be formed of luminol paint, the brightness of which can be adjusted according to the control of the current.

In addition, the lighting unit of the present invention can be lit in red, blue, or white according to the control of the current, and can be formed of a three-color LED capable of adjusting the brightness according to the control of the current.

The present invention specifies the position, direction, and speed of the vehicle based on the weight of the vehicle sensed by the vehicle detection unit having a plurality of pressure-sensitive sensors, so that the stopping distance according to the speed of the vehicle from the location of the vehicle is determined in the dangerous section. There is an effect that can be set to .

In addition, the present invention turns on the lighting unit in the danger zone so that when a pedestrian crosses the roadway, the danger zone can be visually recognized from the illuminated lighting part. Even if the vehicle is not recognized using the

In addition, the present invention can recognize the warning section visually from the illuminated lighting section when the pedestrian crosses the road by turning on the lighting unit in the warning section, so that the vehicle is present in the blind spot of the pedestrian's view, or the pedestrian is using a smartphone, etc. Even if the vehicle is not recognized using the

In addition, the present invention has an effect of being installed so that the lighting unit installed on the road does not limit the height of the vehicle.

1 is a block diagram of a visual vehicle recognition system for a pedestrian according to an embodiment of the present invention.
2 is a view showing a state in which a danger section and a warning section are lit on the road compared to the position of the vehicle according to an embodiment of the present invention;
3 is a view showing a state in which a danger section and a warning section are lit on the road compared to the position of the vehicle when a plurality of vehicles having different traveling directions are located at a sufficiently distant distance according to an embodiment of the present invention;
4 is a diagram illustrating a state in which a dangerous section and a warning section are lit on a road compared to the position of the vehicle when a plurality of vehicles having different traveling directions are located at an intermediate distance from each other according to an embodiment of the present invention;
5 is a diagram illustrating a state in which a dangerous section and a warning section are lit on a road compared to the position of the vehicle when a plurality of vehicles having different traveling directions are located at a close distance according to an embodiment of the present invention;
6 is a view showing a state in which a danger section and a warning section are lit on a road compared to the position of the vehicle when a plurality of vehicles pass each other according to an embodiment of the present invention;

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings. In adding reference numerals to the components of each drawing, it should be noted that the same components are given the same reference numerals as much as possible even though they are indicated on different drawings. In addition, in describing the present invention, if it is determined that a detailed description of a related known configuration or function may obscure the gist of the present invention, the detailed description thereof will be omitted.

In addition, in describing the components of the present invention, terms such as first, second, A, B, (a), (b), etc. may be used. These terms are only for distinguishing the elements from other elements, and the essence, order, or order of the elements are not limited by the terms. When it is described that a component is "connected", "coupled" or "connected" to another component, the component may be directly connected to or connected to the other component, but another component is between each component. It will be understood that elements may be "connected," "coupled," or "connected."

Referring to FIG. 1 , the present invention is configured to include a vehicle sensing unit 10 , a lighting unit 20 , a control unit 30 , and a lighting driving unit 40 .

The vehicle detection unit 10 includes a plurality of detection sensors 11 , and the plurality of detection sensors are installed on the road 1 at regular intervals to detect the presence or absence of the vehicle 2 . The vehicle detection unit 10 is connected to the control unit 30 .

The detection sensor 11 may be a pressure sensor typically installed on the lower surface of the road 1 and operating a switch contact depending on the weight of the vehicle 2 , and a laser transmitter and a laser receiver on the left and right sides of the road 1 . is installed and may be a laser sensor that detects that the laser transmitted by the laser transmitter does not reach the laser receiver when the vehicle 2 is present.

When the vehicle 2 located on the road 1 is sensed, the detection sensor 11 of the vehicle detection unit 10 transmits the detection fact of the vehicle 2 to the control unit 30 in real time.

The lighting unit 20 has a configuration in which a plurality of lights 21 are installed on the outskirts of the road 1 or in a lane of the road, and the lights are turned on under the control of the lighting driver 40 to be described later. The lighting unit 20 may be connected to the lighting driving unit 40 to adjust the color or intensity of light under the control of the lighting driving unit 40 . Since the lighting unit 20 is applied or installed on the road surface of the road 1, it does not obstruct the passage of the vehicle.

The lighting 21 may be a luminol paint that is applied to the outside of the road 1 or on the road 1 and emits light by reacting with an oxidizing agent in a small amount when electrically stimulated, It may be a tri-color LED that lights the LED.

Luminol paint is a paint that does not emit light when no current flows, emits light when current flows, and has the effect of changing the intensity or color of light according to the control of the current.

The tri-color LED does not emit light when no current flows, and has the effect of emitting light of various colors by emitting red, blue, and green LEDs according to the control of the current.

The control unit 30 is connected to the vehicle sensing unit 10 and the lighting driving unit 40 .

The control unit 30 specifies the position of the vehicle 2 based on the detection information of the vehicle 2 sensed by the vehicle detection unit 10 .

The control unit 30 calculates the time during which the specified position of the vehicle 2 changes based on the time sensed by the detection sensor 11 installed at regular intervals to specify the speed and the traveling direction of the vehicle.

The control unit 30 determines a section corresponding to the speed of the vehicle 2 from the position of the vehicle 2 in the traveling direction of the vehicle 2 based on the location, speed, and traveling direction information of the vehicle 2 by a stopping distance corresponding to the speed of the vehicle 2 . Calculate and set as the risk section (A).

The stopping distance is calculated as the sum of the idle distance and the braking distance.

The driving distance is the distance traveled by the vehicle 2 until the brake is applied when the driver senses a danger and steps on the brake, and the braking distance is the distance the vehicle travels until the vehicle 2 comes to a complete stop after the brake is applied.

For a vehicle at 20 km/h, a stopping distance of 9 m is calculated. For a vehicle at 30 km/h, a stopping distance of 15 m is calculated. For a vehicle at 40 km/h, a stopping distance of 22 m is calculated. For a vehicle at 50 km/h, a stopping distance of 32 m is calculated. For a vehicle at 60 km/h, a stopping distance of 44 m is calculated. For a vehicle at 70 km/h, a stopping distance of 58 m is calculated. For a vehicle at 80 km/h, a stopping distance of 76 m is calculated. For a vehicle at 100 km/h, a stopping distance of 112 m is calculated.

By raising the speed of the vehicle by 10 to specify a wider stopping distance, the stability of pedestrians is increased.

The calculated stopping distance may change depending on the climate.

The stopping distance is calculated by 1.5 times when it rains and 3 times when the road surface is frozen.

The control unit 30 sets a certain range located on the side of the vehicle 2 in the traveling direction in the danger section A as the warning section B. The range of the warning section (B) may be 10m or 20m.

The control unit 30 transmits the position information of the set danger section (A) and warning section (B) to the lighting driving unit (40).

1 and 2, the lighting driving unit 40 generates a first signal that turns on the red indicating the danger section (A) in the lighting 21 of the lighting unit 20 corresponding to the danger section (A), and , generates a second signal for illuminating the blue indicating the warning section (B) on the lighting 21 corresponding to the warning section (B).

The lighting driver 40 may control the current transmitted to the lighting 21 of the lighting part 20 corresponding to the dangerous section to turn on the bright red light.

The lighting driving unit 40 is brighter as the lighting 21 is closer to the position of the vehicle 2 among the lighting 21 of the lighting unit 20 corresponding to the dangerous section, and the lighting 21 farther from the position of the vehicle 2 is relative. can be dimly lit.

The illumination driving unit 40 controls the current transmitted to the illumination 21 of the illumination unit 20 corresponding to the warning section to turn on the bright blue light.

The lighting driving unit 40 lights not only the lighting 21 installed in the lane on the traveling direction side of the vehicle 2 but also the lighting 21 installed in the opposite lane, so that pedestrians can recognize it as much as possible.

3 and 4 , when a plurality of vehicles 2 approach from opposite lanes in different traveling directions, the lighting driving unit 40 illuminates the danger zone A rather than the warning zone B.

5 and 6 , when a plurality of vehicles 2 pass in different traveling directions in opposite lanes, the lighting driving unit 40 provides a danger zone (A) and a warning zone (B) from the location of each vehicle. ) and turn it on.

In the above, even if all the components constituting the embodiment of the present invention are described as being combined or operating in combination, the present invention is not necessarily limited to this embodiment. That is, within the scope of the object of the present invention, all the components may operate by selectively combining one or more. In addition, although all the components may be implemented as one independent hardware, some or all of the components are selectively combined to perform some or all of the functions of one or a plurality of pieces of hardware. It may be implemented as a computer program having Codes and code segments constituting the computer program can be easily deduced by those skilled in the art of the present invention. Such a computer program is stored in a computer-readable storage medium, read and executed by the computer, thereby implementing the embodiment of the present invention. The storage medium of the computer program may include a magnetic recording medium, an optical recording medium, a carrier wave medium, and the like.

In addition, terms such as "comprises", "comprises" or "have" described above mean that the corresponding component may be embedded, unless otherwise stated, excluding other components. Rather, it should be construed as being able to include other components further. All terms, including technical and scientific terms, have the same meaning as commonly understood by one of ordinary skill in the art to which the present invention belongs, unless otherwise defined. Terms commonly used, such as those defined in the dictionary, should be interpreted as being consistent with the meaning in the context of the related art, and are not interpreted in an ideal or excessively formal meaning unless explicitly defined in the present invention.

The above description is merely illustrative of the technical spirit of the present invention, and those of ordinary skill in the art to which the present invention pertains can implement the present invention in other specific forms without changing the technical spirit or essential features. You will understand that there is Therefore, it should be understood that the above-described embodiments are illustrative in all respects and not restrictive. The scope of the present invention is indicated by the following claims rather than the above detailed description, and the meaning and scope of claims And all changes or modifications derived from the concept of equivalents should be construed as being included in the scope of the present invention.

10: vehicle detection unit
20: lighting unit
30: control unit
40: lighting driving unit
A : danger zone
B : Warning section

Claims (6)

a vehicle detection unit installed on a road to detect the presence of a vehicle and having a plurality of detection sensors spaced apart from each other at regular intervals;
The position of the vehicle, the speed of the vehicle, and the traveling direction of the vehicle are specified based on the information detected by the vehicle detection unit, and a danger section and a warning section from the vehicle are calculated based on the specified vehicle information. a control unit;
a lighting driver for generating a first signal for illuminating the danger section and a second signal for illuminating the warning section on the basis of the information of the danger section and the warning section calculated by the control unit; and
Receives the first signal and the second signal of the lighting driving unit, turns on the red indicating the danger section according to the first signal, turns on the blue color indicating the warning section according to the second signal, the left side of the road and A visual vehicle recognition system for pedestrians including; a lighting unit installed on the road outside the right side. The method according to claim 1,
The dangerous section calculated by the control unit is formed with a constant length in the traveling direction of the vehicle with respect to the vehicle,
The constant length of the dangerous section is 9m when the speed of the vehicle is 20km, 15m when the speed of the vehicle is 30km, 22m when the speed of the vehicle is 40km, 32m when the speed of the vehicle is 50km, 32m, the vehicle's A visual vehicle recognition system for pedestrians whose speed is 44 m when the speed is 60 km, 58 m when the speed of the vehicle is 70 km, 76 m when the speed of the vehicle is 80 km, and 112 m when the speed of the vehicle is 100 km. The method according to claim 1,
The warning section calculated by the controller is a visual vehicle recognition system for pedestrians that is formed with a length corresponding to 10m or 20m from the end of the danger section in the traveling direction of the vehicle, based on the vehicle. The method according to claim 1,
The control unit is a visual vehicle recognition system for pedestrians for determining the overlapping section as a dangerous section when the warning section calculated by the presence of a plurality of vehicles on the road and the dangerous section overlap. The method according to claim 1,
The lighting unit is a visual vehicle recognition system for pedestrians that is formed of luminol paint that can be lit in red or blue according to the control of the current, and whose brightness can be adjusted according to the control of the current. The method according to claim 1,
The lighting unit can be lit in red, blue, or white according to the control of the current, and is formed of a three-color LED that can control the brightness according to the control of the current. A visual vehicle recognition system for pedestrians.

Images