KR101679304B1 - Crosswalk guide system - Google Patents

Crosswalk guide system Download PDF

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Publication number
KR101679304B1
KR101679304B1 KR1020150167652A KR20150167652A KR101679304B1 KR 101679304 B1 KR101679304 B1 KR 101679304B1 KR 1020150167652 A KR1020150167652 A KR 1020150167652A KR 20150167652 A KR20150167652 A KR 20150167652A KR 101679304 B1 KR101679304 B1 KR 101679304B1
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KR
South Korea
Prior art keywords
pedestrian
signal
crosswalk
monitoring means
speaker
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KR1020150167652A
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Korean (ko)
Inventor
이민석
Original Assignee
주식회사 어반어소시에이츠
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    • G—PHYSICS
    • G08—SIGNALLING
    • G08G—TRAFFIC CONTROL SYSTEMS
    • G08G1/00—Traffic control systems for road vehicles
    • G08G1/005—Traffic control systems for road vehicles including pedestrian guidance indicator
    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01F—ADDITIONAL WORK, SUCH AS EQUIPPING ROADS OR THE CONSTRUCTION OF PLATFORMS, HELICOPTER LANDING STAGES, SIGNS, SNOW FENCES, OR THE LIKE
    • E01F9/00—Arrangement of road signs or traffic signals; Arrangements for enforcing caution
    • E01F9/60—Upright bodies, e.g. marker posts or bollards; Supports for road signs
    • E01F9/604—Upright bodies, e.g. marker posts or bollards; Supports for road signs specially adapted for particular signalling purposes, e.g. for indicating curves, road works or pedestrian crossings
    • E01F9/608—Upright bodies, e.g. marker posts or bollards; Supports for road signs specially adapted for particular signalling purposes, e.g. for indicating curves, road works or pedestrian crossings for guiding, warning or controlling traffic, e.g. delineator posts or milestones
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
    • G01S13/00—Systems using the reflection or reradiation of radio waves, e.g. radar systems; Analogous systems using reflection or reradiation of waves whose nature or wavelength is irrelevant or unspecified
    • G01S13/02—Systems using reflection of radio waves, e.g. primary radar systems; Analogous systems
    • G01S13/04—Systems determining presence of a target
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
    • G01S15/00—Systems using the reflection or reradiation of acoustic waves, e.g. sonar systems
    • G01S15/02—Systems using the reflection or reradiation of acoustic waves, e.g. sonar systems using reflection of acoustic waves
    • G01S15/04—Systems determining presence of a target
    • G01S17/026—
    • G—PHYSICS
    • G08—SIGNALLING
    • G08G—TRAFFIC CONTROL SYSTEMS
    • G08G1/00—Traffic control systems for road vehicles
    • G08G1/16—Anti-collision systems
    • G08G1/166—Anti-collision systems for active traffic, e.g. moving vehicles, pedestrians, bikes

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  • Engineering & Computer Science (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Acoustics & Sound (AREA)
  • Traffic Control Systems (AREA)

Abstract

The present invention relates to a crosswalk guide system which includes a pedestrian traffic light (120), a first pedestrian monitoring sensor (301) that monitors a first area (103a) on a crosswalk, a second pedestrian monitoring sensor (302) that monitors a second area (103b) on the crosswalk, a crosswalk voice guidance device (500), a central control device (201) that controls the crosswalk voice guidance device based on signals received from the pedestrian traffic light, the first pedestrian monitoring sensor and the second pedestrian monitoring sensor, and a warning light device (115) that selectively outputs a warning light signal to surrounding driving vehicles based on a signal input by the second pedestrian monitoring sensor to the central control device, so that safety and functions thereof may be improved.

Description

Crosswalk guide system [0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a pedestrian guidance system, and more particularly, to a pedestrian pedestrian guidance system that can be safely used by a general pedestrian or a visually impaired person, And to provide a pedestrian guidance system capable of preventing traffic accidents by alarming the surrounding vehicles.

In general, various campaigns and measures are being proposed to reduce traffic accidents. Since traffic accidents are serious problems related to people's lives, various safety devices are being developed, and many devices and systems related to pedestrian traffic lights are being developed, especially on pedestrian crossings.

A large number of traffic accidents occur on the crosswalk. Most traffic accidents that occur on the crosswalk are caused by the carelessness of the driver, but there are also many due to carelessness of the pedestrian. For example, when a pedestrian is attempting to cross before a gait light turns to a green light that allows crossing, or even when a green light that allows crossing is turned off, the gait signal of a pedestrian crossing may go to a red light Even in the lit state, pedestrians are often exposed to dangerous situations, such as entering a driveway in a hasty mind, waiting in a roadway, and not waiting in a safe car. Therefore, there is a need to ventilate the pedestrian so that the pedestrian is not exposed to danger.

In the pedestrian crossing, a pedestrian voice guidance device for ventilating the surroundings so as not to be exposed to danger is disclosed in Korean Patent Registration No. 10-0372095. A transverse walkway voice guidance apparatus disclosed in Korean Patent No. 10-0372095 includes human body detection means for detecting a human body; A gait signal light sensing means for sensing a gait signal state of a pedestrian crossing; Control means for controlling the human body sensing means to generate a predetermined warning sound when the human body sensing means senses the human body in a state in which the red light of the walking signal or the like is lit up; And voice processing means for outputting a warning sound through a speaker under the control of the control means.

On the other hand, the crosswalk is equipped with various devices and facilities to help the disabled person to move to the desired place and to view the desired work with the power of the disabled, so that the disabled can perform social activities. Among the typical facilities for the visually impaired, there is an acoustic signaling device for the visually impaired, which is installed on a gait signal and informs the user of the presence of a crossing by a dial tone.

The acoustic signaler is an acoustic indication of the lighting status of the gait signal because the visually impaired can not see the traffic light on the pedestrian crossing. In other words, the lights of the red lights and the lights of the blue lights are generated by different sounds or by voice, so that the visually impaired hears sound and voice guidance and crosses the crosswalk. The acoustic signaling device for a visually impaired person is installed to be able to be driven when a sound signal operating button provided on a support of a walking signal lamp is pressed, for example. In the pedestrian crossing, the gait lights are installed on both the waiting side and the opposite side, and both the gait lights send and receive with the prescribed radio signal. In Korea, gait signals transmit and receive signals at a frequency of 235.3 MHz.

Therefore, when one acoustic signal activating button is pressed, it is notified that the acoustic signal for the visually impaired is driven to the gait signal provided on the opposite side with the radio wave signal of 235.3 MHz. The audible signal for the visually impaired is different from the warning sound on the opposite side and the warning sound on the opposite side so that the visually handicapped person crosses the pedestrian crossing and finds that he is getting closer to the opposite traffic light.

The audible signal for the visually impaired informs the gait signal of the pedestrian crossing with a blue indicator light as an acoustic signal only when the acoustic signal activating button provided on the support of the gait signal is pressed. On the other hand, a pedestrian voice guidance device is a device for letting a pedestrian who wants to cross a pedestrian crossway to wait indoors while the red light is on, and to safely cross the pedestrian crosswalk while the blue light is on.

The conventional pedestrian transit voice guidance apparatus configured as described above is provided with an acoustic signal activating button for a visually impaired person in a general pedestrian crossing system so as to guide the visually impaired person to the acoustic path. Or a pedestrian warning in case of a violation of a pedestrian signal, the safety of pedestrian crossing is limited.

Korean Patent No. 10-0372095

SUMMARY OF THE INVENTION The present invention has been made in order to solve the above-mentioned problems, and it is an object of the present invention to provide a pedestrian warning device for providing pedestrian crossing information to a general pedestrian or visually impaired person, And an alarm means capable of notifying the presence of a walking signal violator in the surrounding driving vehicle.

Another object of the present invention is to provide a crosswalk guidance system with improved safety and function as compared with the conventional crosswalk guidance system.

In order to achieve these objects, the crosswalk guidance system of the present invention,

A first monitoring means for monitoring the first area on the pedestrian crossing, a second monitoring means for pedestrians for monitoring the second area on the pedestrian crossing, a pedestrian crossing voice guidance device, A central control device for controlling the pedestrian transit voice guidance device in accordance with a signal received from the first monitoring means for the pedestrian and the second monitoring means for the pedestrian, and a signal input from the second monitoring means for the pedestrian to the central control device And an alarm device for selectively outputting a light signal to the traveling vehicle around the crosswalk.

Further, the present invention is further characterized by a signal input means for a visually impaired person which can be connected to the central control apparatus via a wired or wireless communication.

In the pedestrian transit voice guidance apparatus, a pedestrian guidance mode and a visually impaired guidance mode are constituted. When the pedestrian guidance signal input means and the central control apparatus are connected, So that the voice guidance is performed.

The first area is set at a boundary between the guide and the roadway on both sides of the bridgewalk, and the second area is set at the center part on the crosswalk with the first area on both sides.

The first monitoring means for the pedestrian and the second monitoring means for the pedestrian may comprise at least one of an ultrasonic sensor, an infrared sensor, a laser sensor and an image sensing device.

Further, the first monitoring means for the pedestrian, the second monitoring means for the pedestrian, the pedestrian voice guidance device, and the central control device are fixed to a control box and a signal lamp supporter to which the walking signal lamp is installed .

The pedestrian crossing guidance system of the present invention includes a walking signal lamp 120, a first monitoring sensor 301 for a pedestrian monitoring a first area 103a on a pedestrian crossing, and a second area 103b on a pedestrian crossing Pedestrian voice guidance apparatus 500, pedestrian voice guidance apparatus 500, pedestrian-side first surveillance sensor, pedestrian-side second surveillance sensor, (115) for selectively outputting a light signal to a traveling vehicle around the pedestrian crossing in accordance with a signal input from the second monitoring sensor for pedestrian to the central control unit It is possible to obtain the effect of greatly improving the guidance of the pedestrian crossing and the pedestrian guiding function.

When a pedestrian entering the first area 103a of the pedestrian crossing enters the boundary area of the pedestrian crossing in violation of the gait signal or enters the dangerous second area 103b and does not cross the pedestrian crossing It is possible to provide a voice guidance promptly when a pedestrian occurs, and to alert a driver of a vehicle around the crosswalk to a warning by using a lightening method or the like, thereby preventing a traffic accident from occurring.

1 is a schematic diagram showing an example of a crosswalk guidance system according to the present invention.
FIG. 2 is a view illustrating a state in which a walk signal lamp and a control box are installed in the pedestrian crossing guide system according to the present invention.
3 is a three-dimensional view showing an example of a control box of the present invention,
4 is a three-dimensional view showing a state in which the cover of the control box of the present invention is opened.
5 is a block diagram illustrating an example of a crosswalk guidance system in accordance with the present invention.
6 is a flowchart for explaining the operation of the pedestrian guidance system according to the present invention.

Hereinafter, the technical construction and operation of the crosswalk guidance system of the present invention will be described in detail with reference to the accompanying drawings.

1 and 2, the crosswalk guidance system 100 is provided with a signal lamp support 110 on both sides of the roadway, and each of the signal lamp supports 110 includes a walk signal lamp 120, a control box 130 Is fixed. Each of the control boxes 130 is connected to the wireless transceiver 140 to enable short-range communication with a mobile device (not shown) carried by the visually impaired. The wireless transceiver 140 detects a signal output from the mobile device when the visually impaired person carrying the mobile device approaches the portion of the pedestrian crossing 105 of the crosswalk by being fixed to the signal lamp supporter 110 or mounted on the control box 130, So that the pedestrian guidance system can be switched to the visually impaired guidance mode.

In addition to the wireless transceiver 140, the button 150 installed on the signal lamp support 110 may be pushed to switch the crosswalk guidance system to the visually impaired guide mode.

A mobile device (not shown), button 150 carried by a visually impaired person acts as a signal input means for the visually impaired to switch the pedestrian guidance system to the visually impaired guide mode.

A crosswalk 103 is provided across the roadway 101 and a boundary stone 105 is provided at a position slightly inward from the boundary between the roadway 101 and the both ends. The line on which the boundary stone 105 is located is a reference line that prevents the pedestrian from passing over the roadway in the red light state.

The walking signal lamp 120 is composed of a red display lamp 121, a green display lamp 123 and a green remaining time display unit 125 as shown in Fig.

The crosswalk 103 across the roadway has a first area 103a set to the road 101 from each of the boundary seats 105 and a second area 103a defined between the first and second areas, Area 103b. The first area 103a is a section for guiding the pedestrian only through the pedestrian crossing voice guidance device so that the pedestrian can be withdrawn from the pedestal 105 when the pedestrian enters the state where the red light 121 such as the gait signal is lighted. Is set to be about 1 to 1.5 m in width.

Reference numeral 115, which is not described in FIGS. 1 and 2, indicates a danger to the surrounding vehicle driver when the pedestrian is located in the second area 103a of the pedestrian in a state in which the red indicator lamp 121 such as a gait signal is lit For example, it can be configured by using a lightener. The light controller 115 does not affect the signal system of the gait signal, and the driving of the light controller 115 is controlled by the control of the central controller to be described later.

The control box 130 in which the central control unit is installed will be described in detail with reference to FIGS. 3 and 4. FIG.

The control box 130 includes a first monitoring sensor 301 for a pedestrian that monitors the first area 103a of the pedestrian, a second monitoring sensor 302 for a pedestrian that monitors the second area 103b of the pedestrian, And a speaker 235 constituting a pedestrian voice guidance device.

The control box 130 is formed with a pair of fastening arms 131 and 132 so as to be easily fixed to the signal lamp supporter 110 and fasteners 131a and 132a are formed at the ends of the fastening and rocking arms. The speaker mounting portion 335 formed in the control box includes an angle adjusting groove 336 for easily adjusting the installation angle of the speaker after the speaker 235 is installed and a hole communicating with the speaker 235, And a curtain film 337 serving to guide the sound in one direction so as not to scatter the sound.

On the other hand, the first monitoring sensor 301 for a pedestrian or the second surveillance sensor 302 for a pedestrian detects whether a pedestrian exists in the first area 103a and the second area 103b of the pedestrian crossing, Infrared sensor, a laser sensor, or an image sensing device for transmitting the image data to the central control device 201. [

Particularly, the first monitoring sensor 301 for the pedestrian and the second monitoring sensor 302 for the pedestrian should be constructed so as to accurately distinguish the traveling vehicle and the pedestrian. An example of a method of distinguishing between a traveling vehicle and a pedestrian is a method in which a traveling direction of a traveling vehicle and a traveling direction of a pedestrian crossing a pedestrian cross are substantially perpendicular to each other, Or to transmit the signal, or to discriminate the movement of the pedestrian using the screen data of the video apparatus and to transmit the detection signal.

The first monitoring sensor 301 for the pedestrian and the second monitoring sensor 302 for the pedestrian are configured to operate only while the gait signal is illuminated by the red display 121 and are illuminated by the green display 123 In this case, operation stops.

When a signal is transmitted to the central control device 201 when the first monitoring sensor 301 detects a pedestrian entering the first area 103a in a state in which the red display lamp 123 of the walking signal or the like is on, The apparatus controls the speaker 235 to output a warning guiding sound such as "Please wait for the green signal in the roadway is dangerous so that it is dangerous to backward" so as to stand back to a safe position outside the boundary seat 105. [ When the green light is turned on, for example, it is controlled to output the guidance sound "It is good to cross the crosswalk".

When the second monitoring sensor 302 detects a pedestrian entering the second area 103b in a state in which the red display lamp 121 such as a walk signal is turned on, the signal is transmitted to the central control device 201 The central control unit drives the light guide 115 to inform the surrounding vehicle driver that there is a pedestrian on the pedestrian crossing so that a traffic accident can be prevented in advance.

Next, the operational process of the pedestrian guidance system 100 of the present invention will be described with reference to the block diagram of FIG. 5 and the flowchart of FIG.

First, the pedestrian guidance system 100 is initialized (step S10).

Then, the central control device 201 determines whether the gait signal lamp 120 operates normally. If the gait signal lamp 120 does not operate normally, the flow proceeds to step S30, where the red display lamp 121 is turned on So that the power of the walking signal or the like is cut off.

When the walk signal lamp 120 operates normally, the red display lamp 121 is turned on in step S40 in accordance with the signal cycle of the walk signal or the like, and the green display lamp 123 is turned on in step S50.

When the red indicator lamp 121 is turned on in step S40, the central control unit 201 proceeds to step S60 to switch the first detection sensor 301 and the second detection sensor 302 on.

After the first sensing sensor 301 and the second sensing sensor 302 are turned ON, the central control device 201 proceeds to step S70 or step S80 to select the first sensing sensor 301 and the second sensing sensor 302 It is determined whether a pedestrian detection signal is detected from the detection sensor 302.

When the first sensing sensor 301 senses a pedestrian entering the first area 103a in step S70, the central control device 201 proceeds to step S110 so that the pedestrian can move out of the safety line 105 And drives and controls the voice guidance apparatus 500.

When the second detection sensor 302 detects a pedestrian entering the second area 103b in step S80, the central control device 201 proceeds to step S90 to control the light control device 115 to drive, The driver of the vehicle is notified of the presence of a pedestrian crossing through the warper 115 to ventilate the surroundings.

On the other hand, when the green indicator light 123 is turned on in step S50, the central control device 201 proceeds to step S100 to turn off the first detection sensor 301 and the second detection sensor 302 , The flow advances to step S110 to drive and control the pedestrian transit voice guidance device 500. [

When the pedestrian transit voice guidance apparatus 500 is driven through step S70 or step S100, the central control apparatus 201 receives the signal from the blind signal input means 250 constituted by the radio transceiver 140 or the button 150 (ON) signal is received (step S120).

When the signal input means 250 for the visually impaired is turned off, the central control device 201 proceeds to step S130 to switch to the general pedestrian guidance mode 410, The central control device 201 proceeds to step S140 and performs switching control to the blind person guidance mode 420. [

Subsequently, the process proceeds to step S150, and guidance sound is output through the speaker 235. [

The guide sound outputted through the speaker 235 is controlled so that another guidance sound can be output in accordance with the step S70 and the driving routine of the pedestrian transit voice guidance apparatus 500 according to the step S100.

For example, when the pedestrian transit voice guidance apparatus 500 is driven in accordance with the routine of step S70, control is performed so as to output a warning guiding sound "Please wait for the green signal in the roadway to come back, so it is dangerous to leave behind" And controls to output a guidance sound "It is OK to cross the crosswalk" when the pedestrian voice guidance apparatus 500 is driven according to the routine.

In addition, in the case of switching to the visually impaired guidance mode 420 and outputting a warning or guidance sound, a more specialized guidance sound (the remaining lighting time of the green indicator, the guidance sound according to the transverse distance, The output strength of the pedestrian waiting line, and the position of the waiting line of the pedestrian).

The present invention is not limited to the above description and drawings, and various changes and modifications may be made by those skilled in the art without departing from the scope of the present invention. Should be included in the scope of the claims set forth in the claims of the present invention.

100: Catholicism guide system
101: Driveway
102: India
103: Pedestrian crossing
103a: first region
103b: second area
105: Bound stone
110: Traffic light support
115: Cyclone
130: Control box
140: wireless transceiver
150: Button
201: Central control device
250: Input means for the visually impaired
301: first sensor for pedestrian
302: second sensor for pedestrian
410: General pedestrian guidance mode
420: Visually impaired guide mode
500: Pedestrian voice guidance device

Claims (6)

A walking signal lamp; A first monitoring means for a pedestrian that monitors a first area set at a boundary between the guide and the roadway on both sides of the crosswalk; Second monitoring means for monitoring a second region set at a central portion on the crosswalk with the first region on both sides; A speaker constituting a pedestrian voice guidance device; A central control unit for controlling the loudspeaker according to a signal received from the first monitoring means for the pedestrian and the second monitoring means for the pedestrian while the gait signal is illuminated by the red light; An alarm device for selectively outputting a light signal to a traveling vehicle around the crosswalk in accordance with a signal input from the second monitoring means for the pedestrian to the central control device while the gait signal is illuminated by a red light; A signal input means for a visually impaired person which can be connected to the central control apparatus via a wired or wireless means; The first monitoring means for the pedestrian, the second monitoring means for the pedestrian, the speaker, and the control box to which the central control device is mounted,
Wherein the speaker comprises a general pedestrian guidance mode and a visually impaired guide mode, and when the signal input means for the visually impaired is connected to the central control device, the speaker is switched to the visually impaired guidance mode to perform voice guidance,
The control box includes a speaker mounting portion having an angle adjusting groove for adjusting an installation angle of the speaker, and an obscuration film for preventing penetration of rainwater through the hole communicating with the speaker and guiding sound to be scattered, And a pair of fixing arms fixed to the signal lamp supporter via the guide rails. delete delete delete The method according to claim 1,
Wherein the first monitoring means for the pedestrian and the second monitoring means for the pedestrian comprise at least one of an ultrasonic sensor, an infrared sensor, a laser sensor, and an image sensing device. delete
KR1020150167652A 2015-11-27 2015-11-27 Crosswalk guide system KR101679304B1 (en)

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Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR102050064B1 (en) 2019-01-11 2019-11-28 디노플러스 (주) Crosswalk pedestrian safety system
KR20190134948A (en) 2018-05-24 2019-12-05 주식회사 어반어소시에이츠 A system for controlling light at crosswalk
KR20190134954A (en) 2018-05-25 2019-12-05 주식회사 어반어소시에이츠 A system for controlling light at crosswalk
KR20200145237A (en) 2019-06-21 2020-12-30 신봉일 A Safety Guiding System for a Crosswalk
CN113299091A (en) * 2021-04-28 2021-08-24 深圳市文业照明实业有限公司 Intelligent traffic road surface illumination warning method and system
KR102389200B1 (en) * 2021-12-29 2022-04-22 주식회사 안전지대 Controlling method of display for pedestrian safety and system thereof
KR20220107731A (en) 2021-01-26 2022-08-02 주식회사 어반어소시에이츠 Crosswalk guide system
KR102457278B1 (en) * 2021-08-20 2022-10-21 한국아이씨티 주식회사 Notification system and service method for pedestrian crossing signals for the visually impaired
KR102557386B1 (en) * 2023-02-07 2023-07-20 주식회사 비앤씨플러스 Bracket type light for pedestrian signals with bicycle road side sensing control

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR200274421Y1 (en) * 2001-12-10 2002-05-08 한광수 Apparatus for controlling pedestrian signal lamp for both common people and the handcapped
KR200431962Y1 (en) * 2006-08-11 2006-11-27 김경수 The warning light system using an infrared light sensor that show a pedestrian's passing on a crosswalk
KR101554971B1 (en) * 2014-12-16 2015-09-22 임철수 Safety system on a crosswalk for pedestrian

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR200274421Y1 (en) * 2001-12-10 2002-05-08 한광수 Apparatus for controlling pedestrian signal lamp for both common people and the handcapped
KR200431962Y1 (en) * 2006-08-11 2006-11-27 김경수 The warning light system using an infrared light sensor that show a pedestrian's passing on a crosswalk
KR101554971B1 (en) * 2014-12-16 2015-09-22 임철수 Safety system on a crosswalk for pedestrian

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20190134948A (en) 2018-05-24 2019-12-05 주식회사 어반어소시에이츠 A system for controlling light at crosswalk
KR20190134954A (en) 2018-05-25 2019-12-05 주식회사 어반어소시에이츠 A system for controlling light at crosswalk
KR102050064B1 (en) 2019-01-11 2019-11-28 디노플러스 (주) Crosswalk pedestrian safety system
KR20200145237A (en) 2019-06-21 2020-12-30 신봉일 A Safety Guiding System for a Crosswalk
KR20220107731A (en) 2021-01-26 2022-08-02 주식회사 어반어소시에이츠 Crosswalk guide system
CN113299091A (en) * 2021-04-28 2021-08-24 深圳市文业照明实业有限公司 Intelligent traffic road surface illumination warning method and system
KR102457278B1 (en) * 2021-08-20 2022-10-21 한국아이씨티 주식회사 Notification system and service method for pedestrian crossing signals for the visually impaired
KR102389200B1 (en) * 2021-12-29 2022-04-22 주식회사 안전지대 Controlling method of display for pedestrian safety and system thereof
KR102557386B1 (en) * 2023-02-07 2023-07-20 주식회사 비앤씨플러스 Bracket type light for pedestrian signals with bicycle road side sensing control

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