Safety Board System

Abstract

To provide a safety board system for a pedestrian crossing.SOLUTION: The present invention is a pedestrian crossing safety board system which is installed on a pedestrian crossing and assists a movement of a traffic vulnerable person, and includes: a pair of lift platforms formed on walkways on both sides of the pedestrian crossing; one or more shuttles which travel along a scheduled travel route within a travel area, shuttle between the pair of lift platforms, and transport a passenger to the other lift platform, while the travel area is set on the pedestrian crossing; a travel device for moving the shuttles; and a control device for selectively operating the travel device. As a result, the present invention can directly assist the traffic vulnerable person in crossing the pedestrian crossing, guiding her to cross quickly and safely.SELECTED DRAWING: Figure 2a

Description

[Technical field]

[0001] The present invention relates to a safety board system that is installed at a crosswalk to help vulnerable road users cross the crosswalk safely, and more specifically, to a safety board system in which a shuttle carrying passengers travels back and forth across the crosswalk to transport the passengers to a lifting platform on the other side, and when the shuttle approaches the lifting platform, it turns at a certain angle to position a door section installed on the side of the shuttle on the lifting platform and is selectively operated by a control device. [Background technology]

[0002] People who experience difficulties in moving around in their daily lives are called vulnerable road users, and typically these include the disabled, the elderly, pregnant women, those with infants, and children. In order to guarantee the dignity, value, and right to pursue happiness as a human being as stipulated in the constitution, the Mobility Convenience Promotion Act for the Transportation Vulnerable was enacted in Korea in 2005 with the aim of establishing mobility convenience facilities to guarantee the right of people who are not vulnerable road users to use all means of transportation, passenger facilities, and roads used by people who are not transportation vulnerable in a safe and convenient manner without discrimination.

[0003] The Act on Promoting Mobility Convenience for the Transportation Vulnerable defines mobility convenience facilities as facilities and equipment that enable the transportation vulnerable to move conveniently when using transportation means, passenger facilities, or roads, such as wheelchair access facilities, elevators for the disabled, sidewalks for the disabled, and rest facilities for breastfeeding.

[0004] Meanwhile, crosswalks, which are typical road accessories installed at railroad crossings, are also extremely dangerous places for ordinary pedestrians, and in 2020, there were 36,601 pedestrian traffic accidents in South Korea, resulting in 1,093 deaths and 36,939 injuries. Of these, there were 9,739 traffic accidents involving elderly pedestrians, with 628 deaths and 9,233 injuries, and 2,079 traffic accidents involving children, with 16 deaths and 2,135 injuries.

[0005] Of the large number of traffic accidents that occur at crosswalks, those involving vulnerable road users make up a significant proportion. Despite this, the only mobility facilities currently installed at crosswalks are audio signals, braille blocks, lowered boundary stones, and LED blocks, and the reality is that no facilities for vulnerable road users are being proactively installed.

[0006] In particular, elderly people, who walk slower than the general population, are often exposed to danger when pedestrian signals are changed even though they have not yet crossed the street. This has led to traffic accidents caused by right-turning vehicles and careless drivers.

[0007] Prior art documents proposed for vulnerable road users to crosswalks include Korean Patent Publication No. 10-2021-0061975 (published on May 28, 2021, hereinafter referred to as "Prior Art Document 1"). Prior Art Document 1 proposed a moving walkway 1 for pedestrians to move on, a piezoelectric sensor 2 for recognizing when pedestrians board, a camera 3 for detecting vehicles and pedestrians, an opening and closing device 4 for preventing pedestrians from crossing the street without permission, and a signal light 5 linked to the camera 3, as shown in FIG. 1a.

[0008] Prior Art Document 1 is a technology proposed at the idea stage for the convenience of the socially vulnerable. Since the moving walkway 1 is installed above the road on which vehicles move, it is difficult to ensure durability against the load of vehicles traveling on it, and the construction and maintenance of the moving walkway 1 is very expensive, so it has not been put to practical use.

[0009] There is also Korean Patent Registration No. 10-1792112 (registered on October 25, 2017, hereinafter referred to as "Prior Art Document 2"), which proposes that, as shown in Fig. 1b, a guide rail 6 is formed along the boundary of a pedestrian crossing, and when a robot 7 moves along the guide rail 6 and detects an obstacle based on signal information transmitted from a controller 8, various warning signals are sent out.

[0010] Prior Art Document 2 proposed a system for pedestrian safety that grasps location information in real time and moves pedestrians to a safe location, but it had limitations in that it could not provide direct assistance to physically disadvantaged road users.

[0011] There is also Korean Patent Registration No. 10-2381877 (registered on March 29, 2022, hereinafter referred to as "Prior Art Document 3"). Prior Art Document 3 proposes that an unmanned electric cart 9 can operate unmanned by sending and receiving signals between the cart and a driving guide unit 9a installed at a crosswalk, as shown in FIG. 1c.

[0012] Prior Art Document 3 proposes that elderly people and the like can ride on electric carts 9 and cross the crosswalk within the designated pedestrian crossing signal. However, since the electric carts 9 can only move back and forth without changing direction, there must be sufficient space on the sidewalk to leave the road and enter the sidewalk to allow passengers to board and disembark. This means that not only is it impossible to install the electric carts on narrow sidewalks, but even in the case of wide sidewalks, the width of the sidewalk becomes significantly narrower, causing inconvenience to pedestrians. [Prior art documents] [Patent documents]

[0013] [Patent Document 1] Korean Patent Publication No. 10-2021-0061975 (Published on May 28, 2021) [Patent Document 2] Korean Patent No. 10-1792112 (registered October 25, 2017) [Patent Document 3] Korean Patent No. 10-2381877 (registered March 29, 2022) Summary of the Invention [Problem to be solved by the invention]

[0014] The present invention has been devised to solve such problems, and its purpose is to provide a crosswalk safety board system that directly assists vulnerable road users to cross the crosswalk safely, and not only ensures stability for the movement of vulnerable road users, but also does not impede the safe movement of other pedestrians.

[0015] Another object of the present invention is to provide a safety board system that allows shuttles to smoothly change direction even in narrow spaces, thereby minimizing the reduction in sidewalk width caused by lifting platforms installed on sidewalks and reducing inconvenience to pedestrians.

[0016] Another object of the present invention is to provide a safety board system that can prevent vehicles from overspeeding and violating traffic signals when crossing a pedestrian crossing, and can ensure safety by slowing down or stopping the vehicle when a person, vehicle, or other object enters or is expected to enter within a safe distance.

[0017] Another object of the present invention is to provide a safety board system that can promote smooth traffic flow by enabling vulnerable road users to complete crossing within the designated pedestrian signal time, thereby contributing to a reduction in the occurrence of traffic accidents on pedestrian crossings, and can also assist in the safety of pedestrians by guiding pedestrians to walk on the right side of the crosswalk.

[0018] Another object of the present invention is to provide a safety board system that is designed with consideration for the aesthetics of the city, creates a new concept for the city, and enhances the brand power of the city. [Means for solving the problem]

[0019] The safety board system of the present invention, which aims to achieve the above-mentioned object and to eliminate the problems of the prior art, is a safety board system that is installed on a crosswalk and assists the movement of vulnerable road users. The safety board system has a pair of lifting platforms formed on the sidewalks on both sides of the crosswalk, and a vehicle that moves along a planned running route within a running area set on the crosswalk and shuttles passengers between the pair of lifting platforms. Transport from one lifting platform to another The system includes one or more shuttles, a travel device for moving the shuttles, and a control device for selectively operating the travel device.

[0020] The traveling device is provided on the shuttle, and a plurality of wheels 32 are rotated by a driving unit, and the sensing unit recognizes the position and direction of the traveling route and can steer the wheels.

[0021] In addition, a pair of travel routes may be set up on the crosswalk to allow bidirectional movement, and both ends of the pair of travel routes may be connected to each other by a pair of turning points to form a loop structure in which the shuttles circulate.

[0022] In addition, the lift platform may be formed in a structure that faces a door provided on the side when the shuttle is turned at a certain angle from a traveling path parallel to the crosswalk.

[0023] The shuttle may also include a direction-changing device that rotates the shuttle so that a door portion of the shuttle entering the lifting platform faces the lifting platform, and rotates the shuttle so that the shuttle exiting the lifting platform is parallel to the travel path.

[0024] The direction changing device may include a pivot shaft accommodated in a protruding structure at the entrance end of the shuttle, and a plurality of wheel units that are installed to be accommodated in the shuttle at a position different from the pivot shaft and that protrude from the bottom of the shuttle together with the pivot shaft to drive the shuttle and rotate it around the pivot shaft.

[0025] In addition, the direction changing device may include a steering unit that is connected to a pair of wheels provided at the forward end of the shuttle to constitute the traveling device, changes the direction of each of the connected wheels to different predetermined angles, and rotates the shuttle by driving the changed pair of wheels.

[0026] In addition, the direction changing device may be provided symmetrically in the front-to-rear direction on the shuttle, and may form a pair of entry end center rotation parts that rotate the shuttle entering the lifting platform by a certain angle around the entry end to allow it to enter the lifting platform, and reverse the rotation of the shuttle that has completed its entry by a certain angle around the entry end to allow it to advance to the running path at the time of entry.

[0027] In addition, the direction changing device may include an entry end center rotation section that is provided on the shuttle and rotates the shuttle entering the lifting platform by a fixed angle around the entry end to allow it to enter the lifting platform, and an exit end center rotation section that is provided at another position on the shuttle and rotates the shuttle that has completed entry by a fixed angle around the exit end to allow it to advance along a travel path different from the travel path at the time of entry.

[0028] The vehicle also includes an overspeed detection device that captures images of vehicles traveling in the vicinity and detects and records the traveling speed of the vehicles, and when the traveling speed of the detected vehicle exceeds a predetermined reference speed, the overspeed detection device can transmit the image of the vehicle and traveling speed information to a designated server.

[0029] In addition, the sensing unit recognizes the position and direction of the boundary line formed on the road surface of the crosswalk, and if the shuttle deviates from a certain area of ​​the boundary line, the control unit re-steers the shuttle to prevent it from departing. The collision prevention sensor detects people or objects ahead of the shuttle's traveling path, and if the detected person or object is within a safe distance or is expected to enter, the control unit can slow down or stop the shuttle so that it travels while maintaining the safe distance.

[0030] In addition, LED lights are installed on the outside of the shuttle. Wait Shuttle through colors and flashes but normal To Operation Is Whether or not, No. Condition or emergency situation but display Be It is possible.

[0031] In addition, when a person or object is detected by the collision prevention sensor, a movement command can be output from the shuttle's speaker.

[0032] The shuttle also includes a passenger detection device that obtains information regarding the number or location of passengers aboard the shuttle, and if the passenger detection device detects a passenger leaving their seat while the shuttle is moving, a command to take a seat can be output from the shuttle's speaker.

[0033] The control device can also suspend operation of the running gear until all passengers are seated in their seats. Effect of the Invention

[0034] According to the safety board system of the present invention, a shuttle that moves along a planned traveling route within a traveling area set on the crosswalk travels back and forth between the lifting platforms on either side of the crosswalk, transporting passengers to the lifting platform on the other side, thereby directly assisting the movement of vulnerable road users crossing the crosswalk and guiding them to cross quickly and safely.

[0035] In particular, it is possible to minimize the reduction in sidewalk width caused by the lift platform installed on the sidewalk, thereby reducing inconvenience for pedestrians and maximizing space utilization.

[0036] In some embodiments, an overspeed prevention device that detects vehicles passing through a crosswalk exceeding the speed limit can reduce accidents caused by speeding vehicles and establish safe traffic order by preventing vehicles from exceeding the speed limit.

[0037] In addition, an openable threshold is formed on the underside of the shuttle's door, preventing passenger belongings from falling out of the shuttle when it is moving or stopped, and a screen door is installed on the lifting platform in conjunction with the control device's signal system, so that the shuttle will operate or the signal system will change when the screen door is closed and the door is closed, or the safety bar on the seat is lowered, thereby guiding passengers to board safely.

[0038] In addition, the LED lights installed on the outside of the shuttle change color, allowing pedestrians in the vicinity to quickly recognize the shuttle's status, thereby ensuring the safety of pedestrians in the vicinity.

[0039] The shuttle will also be equipped with cameras to record inside and outside the vehicle, as well as an emergency call bell in cooperation with the National Police Agency, to help reduce crime inside the shuttle and around the lift platforms.

[0040] As a result, the safety board system of the present invention enables vulnerable road users to safely complete crossing within the designated pedestrian signal time, contributes to reducing the occurrence of traffic accidents on crosswalks, promotes the smooth flow of road traffic, and ultimately encourages pedestrians to walk on the right side of the crosswalk, ensuring their safety.

[0041] Not only that, but based on a design that takes into consideration the aesthetics of the city, it will be possible to create a new concept for the city and enhance the city's brand power.

[0042] In addition, if the passenger detection device detects a passenger who has left their seat, a command to take a seat is output from the shuttle's speaker, and the shuttle's running gear is stopped until all passengers are seated, providing a safe operating environment.

[0043] In addition, if the collision prevention sensor detects a person or object on the movement path, a movement command can be output from the shuttle's speaker, and if an object is detected within a particularly dangerous distance, the braking system can first be activated and the walking signal of the traffic signal system can be extended.

[0044] Also, a display unit can be installed on one side of the shuttle to provide various information and advertisements. [Brief description of the drawings]

[0045] [Figure 1a] FIG. 1 is a conceptual diagram showing a prior art (Patent Document 1) proposed for pedestrians crossing a road. [Figure 1b] FIG. 1 is a conceptual diagram showing a prior art (Patent Document 2) proposed for pedestrians crossing a road. [Figure 1c] FIG. 1 is a conceptual diagram showing a prior art (Patent Document 3) proposed for pedestrians crossing a road. [Figure 2a] 1 is a plan view showing a schematic diagram of an embodiment of a safety board system of the present invention. [Figure 2b] FIG. 11 is a plan view illustrating a schematic configuration of another embodiment of the safety board system of the present invention. [Figure 2c] 13 is a plan view generally illustrating yet another embodiment of the safety board system of the present invention. FIG. [Diagram 3] 1 is a schematic plan view of a lift platform according to an embodiment of the present invention; [Figure 4a] FIG. 2 is a perspective view of a shuttle according to an embodiment of the present invention. [Figure 4b] FIG. 2 is a front view of a shuttle according to an embodiment of the present invention. [Figure 4c] FIG. 2 is a side view of a shuttle according to an embodiment of the present invention. [Figure 5a] 1 is a block diagram conceptually illustrating the operating principle of a collision prevention sensor according to an embodiment of the present invention; [Figure 5b] FIG. 4 is a block diagram conceptually illustrating the operating principle of a collision prevention sensor according to another embodiment of the present invention. [Figure 6]1 is a block diagram conceptually illustrating the operating principle of an occupant detection device according to an embodiment of the present invention; [Figure 7] 1 is a plan view showing a schematic diagram of a turning device according to an embodiment of the present invention; [Figure 8] FIG. 13 is a plan view illustrating a turning device according to another embodiment of the present invention. [Figure 9] 4 is a plan view illustrating a state in which a pair of wheels are adjusted to different angles by a steering unit according to an embodiment of the present invention; FIG. [Figure 10] 1 is a plan view showing a process in which a shuttle enters and leaves a lift platform by a direction changing device according to an embodiment of the present invention; [Figure 11] 13 is a plan view showing a process in which a shuttle enters and exits a lift platform using a direction changing device according to another embodiment of the present invention. FIG. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0046] Hereinafter, a preferred embodiment of the present invention will be described in detail based on the matters shown in the drawings. However, if it is determined that a specific description of related well-known functions or configurations may unnecessarily obscure the gist of the present invention, such detailed description will be omitted.

[0047] In the following description, the "approaching end" and the "leaving end" are based on the direction in which the shuttle 20 approaches the lifting platform 10, and the "approaching end" is defined as an end relatively close to the lifting platform 10 when the shuttle 20 moving along the travel path C approaches the lifting platform 10, and the "leaving end" is defined as an end located opposite the "approaching end" and relatively far away from the lifting platform 10. Therefore, the exiting end and the approaching end of the shuttle 20 can be alternated depending on the travel direction.

[0048] As shown in Figures 2a and 2b, the pedestrian crossing safe board system according to an embodiment of the present invention includes a lifting platform 10, a shuttle 20, a running device 30 and a control device 40, and the shuttle 20, which moves along a travel path C by the running device 30, travels back and forth between a pair of lifting platforms 10, transporting passengers to the opposite lifting platform 10.

[0049] Meanwhile, the safety board system according to one embodiment of the present invention may be configured in a two-way manner in which a pair of shuttles 20 move back and forth along a pair of travel paths C in different directions as shown in FIG. 2a, and the safety board system according to another embodiment of the present invention may be configured in a one-way manner in which a single shuttle 20 moves back and forth along a travel path C as shown in FIG. 2b.

[0050] In addition, the pair of travel paths C included in the two-way type safety board system may have both ends connected to each other to form a loop structure. That is, as shown in Fig. 2c, both ends of a pair of travel paths C formed in a direction crossing a road may be connected to each other by a pair of direction change parts J to form a loop structure, and each shuttle 20 always moves in a different direction from the straight travel path C, moves to another adjacent travel path C through the direction change part J, and then circulates by moving in a different direction from each other.

[0051] Such a travel route C can be formed by an image line painted so as to move along a planned route within a travel area S set at a crosswalk, an electromagnetic induction rail 60 embedded along a planned route within the travel area S, or an induction signal generating means installed on the lifting platform 10 to send out an induction signal.

[0052] In this case, the running area S is a virtual area, and the image line or guide rail may be formed as a single line in the running area S, or may be formed as a pair of lines on the outside to form the running area S.

[0053] The traveling device 30 of the present invention drives the shuttle 20 in an autonomous traveling manner. That is, the traveling device 30 of the present invention includes a function of recognizing an image line captured by a camera in response to the traveling route C and steering the shuttle 20, a function of steering the shuttle 20 in response to an electromagnetic guide rail 60, or a function of steering the shuttle 20 in response to a guide signal, and is an unmanned type, and can be realized as an autonomous traveling type in which the shuttle 20 moves by itself under the control of the traveling device 30 to the lifting platform 10 on the other side.

[0054] For example, although not shown, an unmanned system can be used in which rails extending along the driving path C are installed on the road surface, and rollers that move along the rails are formed on the bottom of the shuttle 20, so that the shuttle 20 moves along the physical rails. In this invention, this embodiment is also defined as being included in the autonomous driving system.

[0055] Such a travel path C may be formed in the center of the crosswalk or on both sides of the crosswalk. However, if the travel path C is formed on both sides of the crosswalk, there is a possibility of a collision with a vehicle that has departed from the stop line, so it is preferable to form it in the center.

[0056] However, if the travel route C is formed in the center of the crosswalk, there is a risk of interference with general pedestrians, so boundary facilities 70 such as bollards and plates can be selectively made to appear and then disappear again at the boundary of the travel area S in which the shuttle 20 moves. This allows general pedestrians to move without interference, as they may be alerted by the boundary facilities 70 and when the pedestrian signal is changed again, the boundary facilities 70 disappear again.

[0057] The lifting platform 10 is a structure formed adjacent to a crosswalk, and is preferably formed by lowering the boundary so that a part of the sidewalk side is recessed. As shown in Fig. 2a and Fig. 2b, the lifting platform 10 is formed on the sidewalk on both sides of the crosswalk, and as shown in Fig. 3, it may include a waiting space 11 where passengers wait, a stopping space 12 where the shuttle 20 stops, a screen door 13 for guiding passengers to safely board and disembark, a charging device 14 for charging the shuttle 20 stopped in the stopping space 12, a display device 15 for displaying information and advertisements, an emergency call bell 16 in cooperation with the police agency, a fence 17 for separating the lifting platform 10 from the sidewalk, and a roof for protecting passengers and surrounding pedestrians from sunlight or snow / rain.

[0058] In this case, the screen door 13 can be configured to be opened before the pedestrian crossing signal by a control device 40 connected to the crosswalk signal system and closed after passengers have boarded, preferably after all passengers have boarded based on analysis of images captured by a camera 18 provided on the lift platform 10.

[0059] On the other hand, to ensure passenger safety, the shuttle 20 can be designed so that, when boarding, the door section 22 and the safety bar that prevents passengers from escaping are lowered, even after all passengers waiting on the lifting platform 10 have boarded the shuttle 20, and the shuttle 20 will only operate with these bars lowered.

[0060] In addition, when passengers disembark, the shuttle comes to a complete halt and the screen door 13 opens after the pedestrian signal is changed, allowing passengers to disembark safely and preventing pedestrians from crossing the street without permission.

[0061] Furthermore, it goes without saying that an announcement can be made via speaker 19 to alert passengers before the screen door 13 opens or closes.

[0062] In addition, the charging device 14 may be a plug-type charger that protrudes from the lifting platform 10 and is connected to the shuttle 20 during the dawn hours when the shuttle 20 is not operating, or may be a wireless charger that forms an electromagnetic field in the parking space 12 and charges the shuttle 20 by induced current when the shuttle 20 is stopped.

[0063] In addition, a solar power generation device 50 can be provided on the upper part of the lifting platform 10, and can be configured to charge a portion of the electricity used by the lifting platform 10 through self-generation, and such a solar power generation device 50 can also be provided on the upper part of the shuttle 20.

[0064] When installing such a lifting platform 10 on a sidewalk, the waiting space 11 is formed with a sufficient area and is configured to face a door section 22 provided on the side of the shuttle 20 that has been redirected at a certain angle from the travel path C that is parallel to the crosswalk, thereby minimizing the area occupied by the lifting platform 10 on the sidewalk and minimizing the inconvenience to pedestrians when walking on the sidewalk.

[0065] In other words, it is preferable that the shuttle 20 is formed in a rectangular structure so that it can carry as many passengers as possible in one trip, and if the lifting platform 10 is configured so that such a rectangular shuttle 20 stops at a position that intersects with the sidewalk, depending on the structure of the sidewalk, it may not be possible to secure a sufficient area for the waiting space 11, which will significantly reduce the width of the sidewalk available for pedestrians to move around, causing inconvenience to pedestrians.

[0066] Accordingly, the stopping space 12 of the lift platform 10 is formed so that the shuttle 20 can stop after being turned at a certain angle from the travel route C, and the waiting space 11 is preferably formed in a structure facing the door 22 of the shuttle 20 stopped in the stopping space 12. In this case, it is generally most advantageous for the turning angle to be 90°, but it can be formed at various other angles taking into consideration the characteristics of the sidewalks and roads, and even in that case, it is preferable to form it in a direction that minimizes the inconvenience to pedestrians caused by the reduction in the width of the sidewalk while still ensuring a sufficient area for the air space 11.

[0067] The shuttle 20 moves along a planned travel route C within a travel area S set on a crosswalk, shuttles between a pair of lifting platforms 10 formed on both sides of the road, and transports passengers to the lifting platform 10 on the other side.

[0068] For this purpose, the shuttle 20 may include, as shown in Figs. 4a to 4c, seats 21 for passengers to sit on, doors 22 for getting on and off, one or more cameras 23 for taking images of the inside and outside of the shuttle 20, and one or more LED lamps 24 attached to the outside of the shuttle 20 to display the status of the shuttle 20 or the signal system, and the LED lamps 24 may be formed in a line shape extending from the front to the rear of the shuttle 20, and may display information such as the status of the signal system of the shuttle 20, whether it is operating normally, and emergency situations such as the sudden entry of a vehicle or pedestrian, by flashing green when the shuttle 20 is moving, red when the shuttle is stopped, and red and green repeatedly in an emergency.

[0069] Meanwhile, the door section 22 is formed in a structure that opens on one side of the shuttle 20 to control passengers getting on and off, and a safety bar (not shown) can be operated to prevent passengers from leaving during operation. The door section 22 can be opened after the screen door 13 is opened by the control device 40, and closed after the screen door 13 is closed, and the door section 22 is formed to face the screen door 13 when the shuttle 20 stops in the parking space section 12. The door section 22 provided on the side of the rectangular shuttle 20 can have a wide width, thereby realizing a quick and safe environment for getting on and off.

[0070] In addition, a threshold 26 for preventing passengers' belongings from falling off the shuttle 20 when the shuttle is moving or stopped may be formed in an openable and closable structure at the lower end of the door portion 22 provided on the side of the shuttle 20. That is, the threshold 26 has a lower end connected to a horizontal hinge shaft 27 provided on the shuttle 20 and is connected to an actuator (not shown) so that the threshold 26 can be rotated around the hinge shaft 27 by the operation of the actuator to stand up or fall down, and when it falls down, it protrudes to the side of the shuttle 20 and is connected to the waiting space portion 11 of the lifting platform 10, thereby realizing a safer boarding and alighting environment.

[0071] In addition, an advertising display unit 25 is provided on the body of the shuttle 20, and various information and advertisements can be displayed.

[0072] The running device 30 is provided on the shuttle 20 to move the shuttle 20, and as shown in Figures 4a to 4c, may include a drive unit 31 consisting of a motor or an engine, and a plurality of wheels 32 rotated by the drive unit 31, and some of the plurality of wheels 32 may rotate by receiving power from the drive unit 31, or all of the plurality of wheels 32 may rotate by receiving power from the drive unit 31, or a drive unit 31 may be installed on each of the plurality of wheels 32, and the plurality of wheels 32 may rotate independently.

[0073] In this way, the traveling device 30 is provided on the shuttle 20 and functions to control the overall operation of the shuttle 20 while moving together with the shuttle 20. The traveling device 30 includes a sensing unit 34 for recognizing the image line, electromagnetic guide rail 60 or guide signal to recognize the position and direction of the traveling path C, and a control unit 33 for controlling in real time whether the driving unit 31 is operated, and the direction and speed according to the signal transmitted from the sensing unit 34.

[0074] Meanwhile, the control device 40 controls the lift platform 10 and the shuttle 20, and is preferably installed in a control panel installed adjacent to the crosswalk so as to perform a control function in conjunction with the traffic signal device of the crosswalk. The control device 40, the traffic signal device, a power source, a communication module, etc. may be installed together in the control panel.

[0075] The control device 40 can communicate with the control unit 33 of the shuttle 20 via a communication module, either wired or wirelessly, to link with the signal system, and the control unit 33 for controlling the running device 30 of the shuttle 20 may also be integrated into the control device 40 rather than the shuttle 20.

[0076] Such a control device 40 includes a function of opening and closing the screen door 13 provided on the lifting platform 10 in coordination with the traffic signal of the traffic signal device, a function of turning on the LED lamp 24 in response to the state of the shuttle 20, and a function of controlling the running device 30 in conjunction with the traffic signal.

[0077] Meanwhile, the running device 30 can function to decelerate the shuttle 20 or temporarily halt its operation when an abnormal situation is detected by the sensing unit 34, such as a collision prevention sensor 80 or a camera, installed on the shuttle 20.

[0078] According to one embodiment, a collision prevention sensor 80 for detecting objects such as people and vehicles existing in the moving direction of the shuttle 20 may be installed on the shuttle 20 or at a position extending in the moving direction of the shuttle 20. The collision prevention sensor 80 can determine whether or not there is a person or object ahead by using a laser sensor such as a lidar or radar or an ultrasonic sensor, and can further measure the distance between the shuttle 20 and the detected object in real time by linking with a sensing unit 34 such as a camera.

[0079] 5a, when a detected object is detected by the collision prevention sensor 80, a movement command can be output from the speaker 28 of the shuttle 20. In particular, when the collision prevention sensor 80 detects a detected object at a distance D within a set safety distance d, the control unit 33 can operate the braking device 29 of the shuttle 20 to slow down or stop the shuttle 20 so that the shuttle 20 maintains the safe distance from the detected object.

[0080] In other words, if the collision prevention sensor 80 detects an object at a distance greater than the safety distance d, it will immediately output a movement command, and if the object does not move despite this until it reaches the safety distance d, the shuttle 20 will be decelerated and eventually stopped, and in some cases, the running device 30 will communicate with the control device 40 to extend the walking signal of the traffic signal device, thereby preventing accidents caused by the vehicle's movement.

[0081] In addition, as shown in FIG. 5b, when the camera 111 and the collision prevention sensor 80 detect the position and distance of a vehicle or other moving object in the vicinity, the speed detector 112 can measure the speed of the vehicle or object to determine whether there is a risk of collision, and if a collision is predicted, the braking device 29 can be operated to decelerate and stop the vehicle in advance.

[0082] Meanwhile, the running gear 30 may be provided with a function to prevent the shuttle 20 from moving when there are no passengers, thereby reducing unnecessary energy waste. A passenger detection device 90 for realizing this function may be installed in the shuttle 20, and the passenger detection device 90 may be manufactured using various sensors. In one embodiment, an infrared sensor may be used to immediately grasp the number and positions of passengers, and in another embodiment, a load cell may be installed under the seats 21 to grasp the number and positions of passengers.

[0083] In particular, if the passenger detection device 90 detects any passengers who have left their seats 21 while the shuttle 20 is moving, a command to take a seat is output from the speaker 28 of the shuttle 20, and the shuttle 20 can be stopped from moving until it is confirmed that all passengers are seated. Furthermore, a safer usage environment can be realized by limiting the number of passengers on board to within the allowable number based on the number of passengers detected by the passenger detection device 90.

[0084] Meanwhile, a separation prevention device for preventing the shuttle 20 moving along the travel path C within the travel area S from separating from the travel area S due to a malfunction or error may be installed at a position extending in the shuttle 20 or in the moving direction of the shuttle 20. The separation prevention device photographs a line image formed to extend along the edge of the travel area S.

[0085] When a separation prevention device is installed on the shuttle 20, it is realized in the form of a camera, which is the above-mentioned sensing unit 34, and can grasp the direction and distance of the boundary line. When the position of the shuttle 20 grasped by the separation prevention device is within a set range from the boundary line, the traveling device 30 steers the shuttle 20 so that the shuttle 20 moves away from the boundary line and moves to the target lifting platform 10.

[0086] Therefore, the shuttle 20 can move safely without guiding the shuttle 20 along the travel path C using a physical guide means such as a rail.

[0087] Meanwhile, an overspeed detection device 110 may be installed on the body of the shuttle 20 or on the lifting platform 10. As shown in Fig. 3, the overspeed detection device 110 includes a camera 111 for capturing images of vehicles traveling nearby and a speed detector 112 for detecting the traveling speed of the vehicle. Information obtained from the camera 111 and the speed detector 112 is transmitted to the control device 40, and when the traveling speed of the detected vehicle exceeds a predetermined reference speed, the control device 40 transmits the image of the vehicle and the traveling speed information to a designated server. Such an overspeed detection device 110 can prevent vehicles passing through the crosswalk from exceeding the speed limit, thereby ensuring the safety of pedestrians crossing the crosswalk and vulnerable road users aboard the shuttle.

[0088] Meanwhile, the shuttle 20 is rotated so that the door portion 22 of the shuttle 20 entering the lifting platform 10 faces the screen door 13 of the lifting platform 10, and the shuttle 20 exiting the lifting platform 10 is rotated so that it is parallel to the travel path C, and a direction changing device 120 may be provided to minimize the turning radius of the shuttle 20.

[0089] 7 and 10, the direction changing device 120 according to an embodiment of the present invention may have a pair of entry end center rotation parts 130 provided on the shuttle 20 so as to be symmetrical in the front-rear direction of the shuttle 20. When the pair of entry end center rotation parts 130 enter the lift-up platform 10, the entry end center rotation part 130 located at the exit end is operated to rotate the shuttle 20 by a certain angle around the entry end, thereby allowing the shuttle 20 to enter the lift-up platform 10, and the entry end center rotation part 130 used during entry is operated again to rotate the shuttle 20 that has completed entry by a certain angle again around the entry end, thereby allowing the shuttle 20 to proceed directly to the running line at the time of entry.

[0090] Preferably, the vehicle may rotate 90 degrees to enter and then rotate 90 degrees again to exit. However, depending on the characteristics of the sidewalk and road, the vehicle may enter at an angle other than 90 degrees and then exit at another angle in consideration of space utilization while ensuring sufficient sidewalk and waiting space 11 for boarding convenience.

[0091] This direction changing device 120 is suitable for a one-way type safety board system in which one shuttle 20 moves back and forth, but taking into account circumstances such as an environment where a crosswalk is installed, a two-way type safety board system in which two shuttles 20 move back and forth can also be applied. The entrance end of one lifting platform 10 is changed to the exit end of the other lifting platform 10, so that one of the entrance end central rotating parts 130 on one lifting platform 10 operates repeatedly to allow the shuttle 20 to enter and exit, and the other entrance end central rotating part 130 on the other lifting platform 10 operates repeatedly to allow the shuttle 20 to enter and exit.

[0092] The entry end central rotation part 130 according to one embodiment of the present invention, which is provided symmetrically in the front-to-rear direction of the shuttle 20, may include a pivot shaft 121 and a plurality of wheel units 122, and the pivot shaft 121 is accommodated in a structure that allows it to protrude from the bottom of the entry end of the shuttle 20, and the wheel units 122 are accommodated in the shuttle 20 at a position different from the pivot shaft 121, but protrude from the bottom of the shuttle 20 together with the pivot shaft 121 and are driven, rotating toward the side of the shuttle 20 while in close contact with the ground, thereby rotating the shuttle 20 around the pivot shaft 121.

[0093] In this manner, the pivot shaft 121 and wheel unit 122 constituting the entry end central rotation part 130 protrude at a height lower than the wheels 32 so that the wheels 32 can be separated from the ground when protruding, and can be accommodated inside the shuttle 20 so that the wheels 32 can run on them after the shuttle 20 has completed changing direction.

[0094] As shown in FIG. 8 and FIG. 9, the entrance end center rotation unit 130 according to another embodiment of the present invention may include a steering unit 123 that is connected to a pair of wheels 32 provided at the entrance end of the shuttle 20 to constitute a traveling device 30, changes the direction of each of the connected wheels 32 at a predetermined angle different from each other, and rotates the shuttle 20 around the entrance end by driving the changed pair of wheels 32.

[0095] In this case, the steering unit 123 includes a support 124 that supports a pair of wheels 32 in a steerable structure, and a steering cylinder 125 that is connected to the pair of wheels 32 supported by the support 124 to change the direction of the wheels 32. The steering cylinder 125 changes the direction of each wheel 32 to the side of the shuttle 20, but changes the direction at a predetermined angle different from each other so that each wheel 32 has a posture parallel to the tangent of a circle O whose center is the center of rotation of the shuttle 20 at each position, and the shuttle 20 is rotated around the entrance end by driving the changed pair of wheels 32.

[0096] Meanwhile, as shown in Fig. 11, a direction changing device 120 according to another embodiment of the present invention has an entrance end center rotation part 130 and an exit end center rotation part 140 which is provided on the shuttle 20 so as to be located at a position different from the entrance end center rotation part 130 and rotates the shuttle 20 which has completed entering by a certain angle around the exit end to advance to a traveling path C different from the traveling path C at the time of entering. Such a direction changing device 120 is suitable for a two-way type safety board system in which two shuttles 20 move along different traveling paths C.

[0097] Meanwhile, the advancing end center rotation part 140 may include a pivot shaft 121 and a plurality of wheel units 122, like the entering end center rotation part 130, or may include a steering part 123 that is connected to a pair of wheels 32 provided at the entering end of the shuttle 20 to constitute a traveling device 30, changes the direction of each of the connected wheels 32 to a predetermined angle different from each other, and rotates the shuttle 20 around the advancing end by driving the changed pair of wheels 32. The configuration of the advancing end center rotation part 140 is substantially the same as that of the entering end center rotation part 130, and only the operating direction is different, so a detailed description of the advancing end center rotation part 140 will be omitted.

[0098] As described above, since the advancing end and the advancing end of the shuttle 20 are alternately switched depending on the traveling direction, the advancing end central rotating unit 130 and the advancing end central rotating unit 140 are also alternately switched depending on the traveling direction even though they are realized by the same physical direction changing device 120.

[0099] The entrance end central rotation part 130 and the exit end central rotation part 140 as described above minimize the turning radius of the shuttle 20, allowing the shuttle 20 to smoothly change direction even in a narrow space, thereby minimizing the area of ​​the parking space part 12 required when configuring the lifting platform 10, and also reducing the reduction in sidewalk width due to the lifting platform 10.

[0100] It will be understood by those having ordinary skill in the art in which the present invention pertains that the pedestrian crossing safety board system according to the present invention described above can be embodied in other specific forms without changing the technical concept or essential features of the present invention.

[0101] Therefore, the above-described embodiments should be understood to be illustrative in all respects and not limiting. The scope of the present invention is indicated by the claims set forth below rather than by the above detailed description. All modifications and variations derived from the meaning and scope of the claims and equivalent concepts should be construed as being included in the scope of the present invention. [Explanation of symbols]

[0102] 10 Lifting platform 11 Waiting space 12 Parking space 13. Screen Door 14 Charging device 15 Display device 16 Emergency call bell 17. Fence 18 Camera 19 Speakers 20 Shuttle 21 seats 22 Door section 23 Camera 24 LED lamps 26 Threshold 28 Speakers 29 Braking device 30 Running gear 31 Drive unit 32 wheels 33 Control Unit 34 Sensing section 40 Control device 50 Solar power generation equipment 60 Electromagnetic Induction Rail 70 Border Facilities 80 Anti-collision sensor 90 Passenger detection device 110 Overspeed detection device 111 Camera 112 Speed ​​detector 120 Directional device 121 Pivot axis 122 Wheel unit 123 Steering section 124 Support 125 Steering cylinder 130 Entry end center rotation part 140 Outlet end central rotating part

Claims

1. A safety board system that is installed on a pedestrian crossing to assist the movement of vulnerable road users, A pair of lifting platforms are formed on the sidewalks on both sides of the crosswalk, respectively; one or more shuttles that move along a planned travel path within a travel area established on the crosswalk and shuttle between a pair of lift platforms to transport passengers from one lift platform to the other; A running device for moving the shuttle; A crosswalk safety board system comprising: a control device that selectively operates the traveling device.

2. 2. The crosswalk safety board system according to claim 1, wherein the traveling device is provided on a shuttle, a plurality of wheels are rotated by a driving unit, and a sensing unit recognizes the position and direction of the traveling route and steers the wheels.

3. 2. The crosswalk safety board system according to claim 1, wherein a pair of travel routes is set on the crosswalk to allow bidirectional movement, and both ends of the pair of travel routes are connected to each other by a pair of turning points to form a loop structure in which the shuttle circulates.

4. 2. The crosswalk safety board system according to claim 1, wherein the lifting platform is formed in a structure that faces a door portion provided on a side of the shuttle when the shuttle is turned at a certain angle from a traveling path parallel to the crosswalk.

5. 2. The pedestrian crossing safety board system according to claim 1, further comprising a direction-changing device that rotates the shuttle so that a door portion of the shuttle entering the lift platform faces the lift platform, and rotates the shuttle so that a shuttle exiting the lift platform is parallel to a travel path.

6. The direction changing device is a pivot shaft housed in a projectable structure at the entry end of the shuttle; and a plurality of wheel units that are installed so as to be accommodated in the shuttle at a position different from the pivot shaft, and that protrude from the bottom of the shuttle together with the pivot shaft to drive the shuttle and rotate it around the pivot shaft.

7. The direction changing device is 6. The crosswalk safety board system according to claim 5, further comprising a steering unit that is connected to a pair of wheels provided at the forward end of the shuttle to constitute the running device, changes the direction of each of the connected wheels at different predetermined angles, and rotates the shuttle by driving the changed pair of wheels.

8. The direction changing device is 8. The pedestrian crossing safety board system according to claim 6 or 7, further comprising a pair of entry end center rotation parts which are provided symmetrically on the shuttle in the front-rear direction, rotate the shuttle entering the lifting platform by a certain angle about the entry end to enter the lifting platform, and reverse the rotation of the shuttle that has completed entry by a certain angle about the entry end to advance it to the running path at the time of entry.

9. The direction changing device is an entry end center rotation unit provided on the shuttle, which rotates the shuttle entering the lift platform by a certain angle around the entry end to allow the shuttle to enter the lift platform; and a rotation part around the exit end, which is provided at another position of the shuttle and rotates the shuttle that has completed its entry by a certain angle around the exit end to advance to a travel path different from the travel path at the time of entry.

10. An overspeed detection device that captures images of vehicles traveling in the vicinity and detects and records the traveling speed of the vehicles, 2. The crosswalk safety board system according to claim 1, wherein the overspeed detection device transmits an image of the vehicle and information on the vehicle's speed to a designated server when the vehicle's speed exceeds a predetermined reference speed.

11. The sensing unit recognizes the position and direction of the boundary line formed on the road surface of the crosswalk, and if the shuttle deviates from a certain area of ​​the boundary line, the control unit steers the shuttle again to prevent it from escaping.

2. The pedestrian crossing safety board system according to claim 1, wherein the collision prevention sensor detects a person or object ahead of the shuttle's travel path, and when the detected person or object is within a safe distance, the control unit slows down or stops the shuttle so that the shuttle continues traveling while maintaining the safe distance.

12. The pedestrian crossing safety board system according to claim 1, characterized in that an LED lamp is attached to the outside of the shuttle, and whether the shuttle is operating normally, the status of the signal, or an emergency situation is displayed through color and flashing.

13. The crosswalk safety board system according to claim 11, wherein when the collision prevention sensor detects a person or object, a movement command is output from a speaker of the shuttle.

14. a passenger detection device that ascertains information regarding the number or location of passengers aboard said shuttle; 2. The pedestrian crossing safety board system according to claim 1, wherein if the passenger detection device detects a passenger leaving his / her seat while the shuttle is moving, a command to take a seat is output from a speaker of the shuttle.

15. 15. The pedestrian crossing safety board system according to claim 14, wherein the control device stops operation of the traveling device until all passengers are seated in their seats.

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