Intersection ground signal operation system and road ground signal device

Abstract

An intersection ground signal operation system and a road ground signal device, according to the present invention, have high day / night-visibility ground signal lights provided on ground surfaces such as those of passageways in industrial sites and unsignalized intersections in which vehicles such as four-wheelers and two-wheelers, pedestrians and the like intermingle, such that information about objects on the road is indirectly recognized through lighting color (blue / red), thereby enabling accidents to be prevented and vehicle drivers / pedestrians to be protected even if there are blind spots; and are structured to allow ground signal lights to turn blue or red according to whether objects (vehicles, pedestrians) on the road are detected by an infrared sensor or camera and the like without a complicated PLC or PC program, and thus are technologies that can efficiently provide safety accident prevention functions with merely a simple system / device configuration.

Description

Intersection floor signal operation system and road floor signal device

[0001] The present invention relates to an intersection floor signal operation system and a road floor signal device, which can efficiently provide a safety accident prevention function only with a device configuration using a simple system (embedded microprocessor), by providing a structure in which floor signal lights with high daytime and nighttime visibility are installed on the floor of a non-signalized intersection where vehicles such as four-wheeled vehicles or two-wheeled vehicles and pedestrians pass together, a passageway in an industrial site, etc., so that information on objects within the road can be indirectly recognized through the lighting color (e.g., blue, red), thereby preventing accidents from occurring even when blind spots occur and protecting vehicle drivers / pedestrians, and by providing a structure in which floor signal lights light in a traffic signal color according to whether objects (vehicles, pedestrians) within the road are detected by an infrared sensor or camera, etc., without a complex PLC and PC program.

[0002] Currently, traffic control devices such as traffic lights that display signals at set intervals are installed on general roadways and intersections, and drivers of vehicles on each road drive their vehicles according to the directions of the traffic light colors, regardless of the presence of vehicles on the opposite road.

[0003] However, traffic control measures such as traffic lights are usually installed only on roads exclusively for vehicles with frequent vehicle traffic, and in places such as residential areas and alleyways where separate traffic control measures are not provided for each vehicle entrance, accidents frequently occur when two or more vehicles enter an intersection at the same time, either because they cannot proceed in their respective directions and reach a deadlock, or because one vehicle attempts to proceed unilaterally.

[0004] To prevent these problems, efforts are being made to install means of securing visibility such as mirrors at intersections, or to install signs with warning messages, but in many alleys or intersections where there are no separate traffic signals, as two or more vehicles enter an intersection at the same time, the driver of each vehicle is left to rely solely on their own conscience to proceed, resulting in a high accident rate and frequent disputes after accidents.

[0005] Accordingly, the present invention improves the problems of the prior art, and provides a new type of intersection floor signal operation system and road floor signal device in which objects (vehicles, pedestrians) on m roads entering a non-signalized intersection are detected, m floor signal lights are assigned to each of the m roads, and color lighting for traffic signals is output in a manner that is differentiated by road and driving field of view, so that vehicle drivers on each of the m roads can easily and conveniently recognize whether they can enter another road by simply securing a driving field of view in the direction of travel or recognizing information about the direction of travel, or pedestrians on each of the m roads can easily and conveniently recognize whether they can safely cross the road by simply checking the floor signal lights, thereby reducing waiting time at intersections and protecting vehicle drivers / pedestrians while preventing accidents even when blind spots occur.

[0006]

[0007] And the present invention provides a structure in which a floor signal light turns blue or red depending on whether an object (vehicle, pedestrian) on the road is detected by an infrared sensor for object detection or a camera for object recognition, thereby providing a new type of intersection floor signal operation system and road floor signal device that can efficiently provide a safety accident prevention function with only a device configuration using a simple system (embedded microprocessor) without a complex PLC and PC program.

[0008]

[0009] In addition, the present invention aims to provide a new type of intersection floor signal operation system and road floor signal device, in which the illuminance of the irradiated light source is maintained and visibility is increased by forming the light-emitting surface of the floor signal light to be inclined so as not to allow direct sunlight to shine thereon, and a stable signal transmission system is established by allowing the light to be recognized only in the driver's field of vision in the driving direction.

[0010] And the present invention aims to provide a new type of intersection floor signal operation system and road floor signal device in which the light source itself for color lighting (e.g., blue lighting, red lighting) for traffic signals is transmitted through an optical fiber cable buried underground, and a light block unit buried in the road surface is used as a floor signal light, thereby preventing damage or failure of the system / device due to water leakage and electric leakage, and improving the stability of system / device operation.

[0011] According to a feature of the present invention for achieving the above-described object, the present invention is a system for operating a floor signal of an intersection (10) where m roads (20) intersect each other, comprising m sets of floor signal lights (100') installed in each of m divided areas on the floor surface of a set point of the intersection (10) and allocated so that only a vehicle driver / pedestrian of each road (20) can check the lighting color, and each set of floor signal lights (100') outputs m lighting signals according to a lighting control signal, wherein the lighting signals of the floor signal lights (100') are colored lighting for traffic signals that light up in different colors; an object detection module (200) installed on each road (20) and detecting in real time a vehicle object and a pedestrian object located on a lane (21) or a crosswalk of the corresponding road (20) to generate an object detection signal in real time; A control module (300) that receives an object detection signal in real time from the object detection module (200) and, depending on whether an object is detected on each road (20), generates a color lighting control signal for a traffic signal in real time for each road (20) and transmits it to m sets of floor signal lights (100') constituting the floor signal device (100);

[0012] Provided is an intersection floor signal operation system characterized in that it enables a driver / pedestrian of each road (20) to determine whether it is possible to safely enter another road (20) from the lighting color of the floor signal light (100') assigned to the road (20).

[0013]

[0014] In the intersection floor signal operation system according to the present invention, the floor signal device (100) may be configured so that a floor signal light (100') is installed on the floor surface of the intersection entry area (12) of each road (20) connected to the intersection (10), or a floor signal light (100') facing each road (20) is installed on the floor surface of the intersection central area (11).

[0015]

[0016] According to another feature of the present invention for achieving the above-described object, the present invention provides a road floor signal device installed on the floor surface of a passage setting point of an intersection or an industrial site where m roads intersect, the device including: a control signal receiving unit (110) that receives a lighting control signal from the outside for indicating whether entry into each road is possible depending on whether an object is detected on each road, wherein the lighting control signal is a control signal for lighting a color for a traffic signal that lights up in different colors; a light emitting unit (120) that receives the lighting control signal received from the control signal receiving unit (110) and generates a color lighting light source for a traffic signal allocated to each floor signal lamp (100') corresponding to each road according to the lighting control signal; The present invention provides a road floor signal device characterized by comprising a configuration including: a light block unit (130) in which m light-emitting blocks (132) are installed corresponding to each road as floor signal lights (100'), and a color light source for traffic signals transmitted from the light-emitting unit (120) is transmitted through each light-emitting block (132) so that a light color indicating whether entry to each of the m roads can be identified by a driver of a vehicle on each road; and an optical fiber cable unit (140) including a plurality of optical fiber cables (140') for transmitting the light source allocated to each floor signal light (100') corresponding to each road of the light-emitting unit (120) to each light-emitting block (132) of the light-emitting block unit (130).

[0017]

[0018] In the road floor signal device according to the present invention, the light emitting unit (120) may be configured to include a plurality of relays (1211) that receive a lighting control signal from the control signal receiving unit (110); a plurality of LED modules (122) for lighting colors, each of which is formed of a blue LED (1222) and a red LED (1221) that are turned on and off by each relay (1211); a plurality of reflectors (123) that are connected to each of the LED modules (122) for lighting colors and each of which receives a light source selected from a blue light source and a red light source; a reflector box (124) in which a plurality of relays (1211), LED modules for lighting colors (122), and reflectors (123) are arranged internally; and an optical terminal box (125) in which one end of a plurality of optical fiber cables (140') are arranged and which is coupled to the reflector box (124).

[0019] The above-mentioned light-transmitting block unit (130) may be configured to include a plurality of reflectors (131) to which the other end of the optical fiber cable (140') is connected; a plurality of light-transmitting blocks (132) that are connected to each reflector (131) to receive a light source and have a light-transmitting surface (1321) made of a transparent material to irradiate the light source to the outside.

[0020]

[0021] In the road floor signal device according to the present invention, the optical fiber cable (140') comprises: an optical core (141) passing through a central portion; an inner cladding (142) surrounding the optical core (141); an inner covering (143) surrounding the inner cladding (142); an outer covering (144) surrounding the inner covering (143); And it is composed of a configuration including an end cladding (145) for light transmission that wraps around one end and the other end of the optical core (141), respectively, and is made of a transparent material and transmits the light source transmitted to the optical core (141); wherein the end cladding (145) for light transmission at one end of the optical core (141) constituting the optical fiber cable (140') may be connected to a reflector (123) of the light emitting unit (120), and the end cladding for light transmission at the other end of the optical core (141) may be connected to a reflector (131) of the light transmitting block (132).

[0022]

[0023] In the road floor signal device according to the present invention, the reflector (131) may further include a guide (1311) having a plurality of guide pieces (13112) that form cladding fixing holes into which the end claddings (145) for light transmission of the optical fiber cables (140') are respectively inserted and fixed, the number of which is the same as the number of roads (20) intersecting at the intersection (10).

[0024]

[0025] In the road floor signal device according to the present invention, the light-emitting block (132) has 1) a light-emitting surface (1321) that is arranged to be inclined at an angle of 45° to 125° with respect to the horizontal road surface so that sunlight does not shine directly on the light-emitting surface (1321), or 2) a light-emitting surface (1321) that is arranged to be inclined at an angle of 125° to 165° with respect to the horizontal road surface and a reflective mirror (1323) that is fixed to the bottom surface of a mirror fixing piece (1322) that protrudes horizontally from the upper end portion of the light-emitting block (132) so that sunlight does not shine directly on the light-emitting surface (1321), or 3) a light-emitting surface (1321) that is arranged to be inclined at an angle of 15° to 45° with respect to the horizontal road surface and a reflective mirror (1323) that is fixed to the bottom surface of a mirror fixing piece (1322) that protrudes horizontally from the upper end portion of the light-emitting block (132) so that sunlight does not shine directly on the light-emitting surface (1321). By having a reflective mirror (1323) fixed to the bottom surface of an extended mirror fixing piece (1322) and a reflective mirror (1323) fixed to the road surface, sunlight can be prevented from directly hitting the light-transmitting surface (1321).

[0026]

[0027] In the road floor signal device according to the present invention, the light block (132) of the light block unit (130) is formed in a shape and size that is only recognized in the driving direction field of view of the vehicle driver, and may be installed flush with the road surface or may be installed so as to gradually protrude from the road surface as it moves toward the center.

[0028]

[0029] In the road floor signal device according to the present invention, the light-emitting block (132) is formed as a set of a plurality of unit blocks (132') arranged in a straight line, and the height of the unit blocks (132') may be increased as they go toward the central area (11) of the intersection.

[0030]

[0031] According to the intersection floor signal operation system and road floor signal device according to the present invention, objects (vehicles, pedestrians) on m roads entering a non-signalized intersection are detected, and m floor signal lights are assigned to each of the m roads, and a structure is provided in which color lighting for traffic signals is output to be distinguished by road, so that vehicle drivers on each of the m roads can easily and conveniently recognize whether they can enter another road by simply securing a field of vision in the direction of travel or recognizing information about the direction of travel, or pedestrians on each road can easily and conveniently recognize whether they can safely cross the road by simply checking the floor signal lights, thereby reducing waiting time at intersections and preventing accidents even when blind spots occur, thereby protecting vehicle drivers / pedestrians. In addition, according to the intersection floor signal operation system and road floor signal device according to the present invention, a structure is provided in which the floor signal light turns on the color of a traffic signal according to whether an object (vehicle, pedestrian) on the road is detected by an infrared sensor or a camera, etc., without a complex PLC and PC program, so that a safety accident prevention function can be efficiently provided even with a device configuration using a simple system (embedded microprocessor), and the light source itself for the color lighting of the traffic signal is transmitted through an optical fiber cable buried underground, and since a light block unit buried in the road surface is used as the floor signal light, compared to the conventional technology that directly injects LEDs, damage or failure of the system / device due to water leakage or current leakage is prevented, thereby improving the stability of system / device operation.

[0032] Figure 1 is an example diagram of an intersection to which the present invention can be applied;

[0033] Figure 2 is a basic configuration block diagram of an intersection floor signal operation system according to an embodiment of the present invention;

[0034] FIG. 3 is a conceptual diagram showing the configuration of a road floor signal device according to an embodiment of the present invention;

[0035] FIG. 4 is a drawing showing a light source transmission structure of a road floor signal device according to an embodiment of the present invention;

[0036] FIG. 5 is a drawing showing the configuration of an optical fiber cable according to an embodiment of the present invention;

[0037] FIG. 6 is a conceptual diagram showing a bonding structure of an optical fiber cable and a light-emitting unit-side reflector according to an embodiment of the present invention;

[0038] FIG. 7 is a drawing showing a bonding structure of an optical fiber cable and a reflector on the light-transmitting block unit side according to an embodiment of the present invention;

[0039] Figures 8 (a) and (b) are exemplary views of the shape structure of a guide of a light-emitting block unit side reflector according to an embodiment of the present invention;

[0040] FIG. 9 is a drawing showing a light-emitting block according to an embodiment of the present invention;

[0041] Figure 10 (a) and (c) are structural illustrations of a light-transmitting block according to an embodiment of the present invention.

[0042] Hereinafter, embodiments of the present invention will be described in detail with reference to the attached drawings. In the drawings and detailed description, descriptions and illustrations of components and operations readily apparent to those skilled in the art have been simplified or omitted. In particular, in the drawings and detailed descriptions, detailed descriptions and illustrations of specific technical components and operations of elements not directly related to the technical features of the present invention have been omitted, and only technical components related to the present invention have been briefly illustrated or described.

[0043]

[0044] The intersection floor signal operation system of the present invention relates to a system for operating the floor signal of an intersection (10) where m roads (20) (the number of roads connected to the intersection) intersect each other as shown in Fig. 1, and allows a vehicle driver / pedestrian of each road (20) to determine whether or not it is possible to safely enter another road (20) from the lighting color of the floor signal light (100') assigned to the road (20). Here, the road (20) means a road composed of one or more lanes (21).

[0045] That is, the intersection floor signal operation system of the present invention is a system that can quickly and easily check whether all other roads can be individually entered from each of the m roads connected to the intersection (10) as shown in Fig. 1 by looking ahead, thereby reducing the waiting time at the intersection. For example, in the case of an intersection where four roads are connected, whether straight progress is possible on the road ahead, whether a left turn is possible on the road on the left, and whether a right turn is possible on the road on the right can all be checked by looking ahead.

[0046] To this end, the intersection floor signal operation system of the present invention has floor signal lights (100') installed in each m-divided area on each road (20) connected to the intersection (10), and the floor signal lights (100') in each divided area of ​​each road (20) output m lighting signals according to a lighting control signal.

[0047] The intersection floor signal operation system according to an embodiment of the present invention is configured to include a floor signal device (100), an object detection module (200), and a control module (300) as shown in FIG. 2.

[0048]

[0049] The floor signal device (100) includes m sets of floor signal lights (100') that are installed in each of m divided areas on the floor surface at a set point of an intersection (10) so that only vehicle drivers / pedestrians on each road (20) can check the lighting color. Here, the floor signal lights (100') may be installed in each of m divided areas by being embedded in the floor surface of the intersection entry area (12) of each road (20) connected to the intersection (10), or may be installed in each of m divided areas by having floor signal lights (100') facing each road (20) embedded in the floor surface of the central area (11) of the intersection. In this way, the floor signal lights (100') are preferably installed as embedded signal lights that are installed buried from the road surface, but may also be exposed signal lights that are installed so as to be exposed to the road surface.

[0050] And one set of floor traffic lights (100') has m distinct light-emitting blocks (132) corresponding to m roads (20) entering the intersection (10). Each light-emitting block (132) is assigned to each road (20) and outputs a color light for a traffic signal that lights up in a different color. The color light for a traffic signal may be blue light or red light, but is not limited to this color. (However, for convenience, the following examples are distinguished as blue light and red light.) Here, the blue light indicates that there is no object (vehicle, pedestrian) on the corresponding road (20), and the red light is a signal indicating that there is an object on the corresponding road (20).

[0051] In this way, each set of floor signal lights (100') outputs m lighting signals according to the lighting control signal, and the lighting signal of the floor signal lights (100') is one selected from among a blue lighting light source and a red lighting light source.

[0052]

[0053] The object detection module (200) is installed on each road (20) and detects vehicle objects and pedestrian objects located on the lane (21) or crosswalk of the road (20) in real time to generate an object detection signal in real time. An infrared sensor (210) for object detection or an object recognition camera (220) that can detect and distinguish between people and objects can be used as the object detection module (200).

[0054]

[0055] The control module (300) receives an object detection signal in real time from the object detection module (200), and depending on whether an object is detected on each road (20), it generates in real time one of the blue lighting control signal and the red lighting control signal for each road (20) and transmits it to the m sets of floor signal lights (100') that constitute the floor signal device (100).

[0056]

[0057] The intersection floor signal operation system according to the embodiment of the present invention configured as described above outputs blue / red lighting for each road from the floor signal lights (100') assigned to each road (20) depending on whether an object (vehicle, pedestrian) is detected on each road (20) entering a non-signalized intersection (10), so that the driver of a vehicle on each road (20) can easily and conveniently recognize whether he or she can enter another n-lane road by simply securing a driving field of vision in the direction of travel or recognizing information about the direction of travel, or the pedestrian on each road (20) can easily and conveniently recognize whether he or she can safely cross the road by simply checking the floor signal, thereby shortening the waiting time at the intersection and preventing accidents even when a blind spot occurs, thereby protecting the driver of the vehicle / pedestrian.

[0058] Of course, the intersection floor signal operation system according to the present invention can be applied to an intersection equipped with a signal system and used in a form in which signals are transmitted from an existing road signal system and auxiliary signals of existing traffic lights are provided.

[0059]

[0060] Meanwhile, the road floor signal device according to the present invention can be applied to an intersection where m roads intersect, or can be applied to a passageway in an industrial site. The road floor signal device according to the present invention is described based on a road floor signal device installed on the floor surface of a set point of an intersection (10) where m roads (20) intersect each other.

[0061] For this purpose, a road floor signal device (100) according to an embodiment of the present invention is configured to include a control signal receiving unit (110), a light emitting unit (120), a light-emitting block unit (130), and an optical fiber cable unit (140) as shown in FIG. 3. Here, FIGS. 3 and 4 illustrate the structure of a road floor signal device (100) based on an intersection (10) where four (m=4) roads (20) intersect.

[0062]

[0063] The control signal receiving unit (110) receives a lighting control signal from the outside, which indicates whether entry into each road (20) is possible, depending on whether an object is detected on each road (20). The lighting control signal can be transmitted from the control module (300) of the intersection floor signal operation system according to an embodiment of the present invention. Here, the lighting control signal is one selected from a blue lighting control signal and a red lighting control signal.

[0064]

[0065] The light emitting unit (120) receives a lighting control signal from the control signal receiving unit (110), and generates a blue lighting light source and a red lighting light source allocated to each floor signal light (100') corresponding to each road (20) according to the lighting control signal.

[0066] The light emitting unit (120) according to the embodiment of the present invention is configured to include a plurality of relays (1211), a plurality of LED modules for lighting colors (122), a plurality of reflectors (123), a reflector box (124), and an optical terminal box (125), as shown in FIGS. 3 and 4.

[0067] A plurality of relays (1211) receive a lighting control signal from a control signal receiving unit (110), and a plurality of relays (1211) constitute a relay module (121).

[0068] The LED modules (122) for multiple lighting colors are composed of blue LEDs (1222) and red LEDs (1221) that are turned on and off by each relay (1211). The light-emitting unit (120) of FIGS. 3 and 4 illustrates four LED modules (122) for lighting colors.

[0069] A plurality of reflectors (123) are connected to each LED module (122) for lighting color and each receives one light source selected from a blue light source and a red light source. The light emitting unit (120) of FIGS. 3 and 4 illustrates four reflectors (123), and each reflector (123) is composed of a set of four sub-reflectors to indicate whether entry is possible for each of the four roads (20).

[0070] The reflector box (124) has multiple relays (1211), LED modules for lighting color (122), and reflectors (123) arranged internally.

[0071] The optical terminal box (125) is where one end of a plurality of optical fiber cables (140') is placed and is connected to the reflector box (124).

[0072]

[0073] The light block unit (130) is provided with m light blocks (132) installed corresponding to each road (20) intersecting at an intersection (10) as a floor signal light (100'), and the blue light source or the red light source transmitted from the light emitting unit (120) is transmitted through each light block (132) so that the light color indicating whether entry to the m roads (20) is possible is identified by the driver of the vehicle on each road (20).

[0074] Here, the light-emitting block unit (130) according to the embodiment of the present invention is configured to include a plurality of reflectors (131) and a plurality of light-emitting blocks (132).

[0075] The reflector (131) is connected to the other end of the optical fiber cable (140'), and a plurality of light-transmitting blocks (132) are connected to each reflector (131) to receive a light source. The light-transmitting blocks (132) have a light-transmitting surface (1321) made of a transparent material to irradiate the light source to the outside.

[0076] In addition to using a reflector (131), the light-transmitting surface (1321) of the light-transmitting block (132) is formed into a triangular shape, a square shape, a cylindrical shape, a polyhedral shape, etc., so that the illumination is concentrated when the light source is irradiated externally. This allows the illumination to be recognized only in the driver's field of vision in the driving direction.

[0077]

[0078] The optical fiber cable unit (140) is composed of a plurality of optical fiber cables (140') that transmit the lighting light source allocated to each floor signal light (100') corresponding to each road (20) of the light emitting unit (120) to each light projection block (132) of the light projection block unit (130), as shown in FIG. 4.

[0079] Here, the optical fiber cable (140') according to the embodiment of the present invention is configured to include an optical core (141), an inner cladding (142), an inner covering (143), an outer covering (144), and an end cladding (145) for light transmission, as shown in FIG. 5.

[0080] The optical core (141) passes through the central portion and transmits the lighting light source. The inner cladding (142) surrounds the optical core (141), the inner covering (143) surrounds the inner cladding (142), and the outer covering (144) surrounds the inner covering (143).

[0081] The end cladding (145) for light transmission wraps around one end and the other end of the optical core (141), and is made of a transparent material to transmit the light source transmitted to the optical core (141).

[0082] Here, the end cladding (145) for light transmission at one end of the optical core (141) constituting the optical fiber cable (140') is connected to the reflector (123) of the light emitting unit (120) as shown in FIG. 6, and the end cladding (145) for light transmission at the other end of the optical core (141) is connected to the reflector (131) of the light transmitting block (132) as shown in FIG. 7. In this way, the structure in which the end cladding (145) for light transmission of the optical fiber cable (140') is directly connected to the reflector (123) (131) minimizes the loss of the light source. And, by moving the reflector (131) of the light-transmitting block (132) to which the end cladding (145) for light transmission at the other end of the light core (141) is connected, the distance from the light-transmitting surface (1321) can be adjusted, thereby enabling illuminance control.

[0083] In particular, a guide (1311) having a plurality of guide pieces (13112) is formed in the reflector (131) of the light-transmitting block (132) according to an embodiment of the present invention, as shown in FIG. 7. The guide (1311) forms a cladding fixing hole into which the end cladding (145) for light transmission of the same number of optical fiber cables (140') as the number of roads (20) intersecting at the intersection (10) are respectively inserted and fixed, as shown in FIG. 7, through the plurality of guide pieces (13112). The guide (1311) prevents the end cladding (145) for light transmission from being pressed or crushed by an external force during use. The guide (1311) is made of a transparent material.

[0084] A plurality of guide pieces (13112) are connected and arranged on the inner side of the guide flange (13111) forming the outer perimeter of the guide (1311).

[0085] When four roads (20) intersect at an intersection (10), a square guide (1311a) is provided as in (a) of Fig. 8, and when eight roads (20) intersect at an intersection (10), an octagonal guide (1311b) is provided as in (b) of Fig. 8.

[0086] Instead of such a guide (1311), a film made of transparent material can be formed.

[0087]

[0088] In addition, a grid-structured slide to which an LED module (122) for lighting color can be fastened may be provided at one end of the reflector (123) of the light-emitting unit (120), and a spiral-structured hole for heat dissipation or moisture evaporation of the LED module (122) for lighting color can be formed.

[0089]

[0090] In addition, the reflector (123) of the light emitting unit (120) and the reflector (131) of the light-transmitting block (132) have an openable structure at the end portion where the optical core (141) and the light-transmitting end cladding (145) are fixed, thereby enabling smooth fixing and release of the optical core (141) and the light-transmitting end cladding (145).

[0091]

[0092] Meanwhile, the light block (132) of the light block unit (130) according to the embodiment of the present invention may be formed of a set of a plurality of unit blocks (132') arranged in a straight line as shown in FIG. 9. This allows the space occupation ratio to be increased compared to a traffic light in the form of a road sign, thereby expanding the recognition range, and thus reducing the risk of accidents. In addition, the light block (132) of the light block unit (130) may be installed flush with the road surface, or may be installed so as to gradually protrude from the road surface as it moves toward the center. In addition, the light block (132) may have the height of the unit block (132') increase as it moves toward the central area (11) of the intersection, thereby increasing the visibility of the floor signal light (100') from the driving field of view of the vehicle driver.

[0093] And the light-emitting block (132) can have a light-emitting surface (1321) that is arranged to be inclined at an angle of 45° to 125° with respect to the horizontal road surface as shown in (a) of Fig. 10, so that sunlight does not directly shine on the light-emitting surface (1321), thereby maintaining the illuminance of the light source irradiated externally through the light-emitting block (132) and improving visibility.

[0094] Alternatively, as in (b) of FIG. 10, the light-transmitting surface (1321) may be inclined at an angle ranging from 125° to 165° with respect to the horizontal road surface, and as in (c) of FIG. 10, the light-transmitting surface (1321) may be inclined at an angle ranging from 15° to 45° with respect to the horizontal road surface. In this case, the light-transmitting block (132) is provided with a mirror fixing piece (1322) and a reflecting mirror (1323) as in (b) and (c) of FIG. 10. Through this structure, sunlight is prevented from directly hitting the light-transmitting surface (1321), so that the illuminance of the external light source irradiated through the light-transmitting block (132) is maintained and visibility is improved.

[0095] The mirror fixing piece (1322) is formed by protruding horizontally from the upper end of the light-transmitting block (132). The reflecting mirror (1323) is fixed to the bottom surface of the mirror fixing piece (1322) or the road surface, and reflects light irradiated to the outside through the light-transmitting surface (1321).

[0096]

[0097] The intersection floor signal operation system and road floor signal device according to the embodiment of the present invention configured as described above provide a structure in which the floor signal light turns blue or red depending on whether an object (vehicle, pedestrian) on the road is detected by an infrared sensor (210) for object detection or a camera (220) for object recognition, thereby efficiently providing a safety accident prevention function with only a device configuration using a simple system (embedded microprocessor) without a complex PLC and PC program.

[0098] And, in the intersection floor signal operation system and road floor signal device according to the embodiment of the present invention, a lighting signal is transmitted through an optical fiber cable (140') buried underground, and since a light-emitting block unit (130) buried in the road surface is used as a floor signal light (100'), damage or failure of the system / device due to water leakage or current leakage is prevented, thereby improving the stability of system / device operation.

[0099] In addition, the intersection floor signal operating system and the road floor signal device according to the embodiment of the present invention have the light-emitting surface (1321) of the floor signal light (100') formed to be inclined so that sunlight does not shine directly on it, so that the illuminance of the irradiated light source is maintained and visibility is increased, and at the same time, it is recognized only in the field of vision in the driving direction of the vehicle driver, so that a stable signal transmission system can be established. In addition, the intersection floor signal operating system and the road floor signal device according to the embodiment of the present invention have the floor signal light (100') installed flush with the road surface or installed so that it gradually protrudes toward the center, so that installation and operation can be performed according to the installation location and purpose.

[0100]

[0101] As described above, the intersection floor signal operation system and the road floor signal device according to the embodiment of the present invention have been illustrated in accordance with the above description and drawings, but this is merely an example, and those skilled in the art will readily understand that various changes and modifications are possible within the scope that does not depart from the technical spirit of the present invention.

[0102] According to the intersection floor signal operating system and the road floor signal device according to the present invention, the light-emitting surface of the floor signal light is formed to be inclined so as to prevent direct sunlight, thereby maintaining the illuminance of the irradiated light source and increasing visibility, while making it possible to establish a stable signal transmission system by making it recognized only in the field of vision of the vehicle driver in the driving direction. In addition, according to the intersection floor signal operating system and the road floor signal device according to the present invention, the floor signal light can be installed flush with the road surface or gradually protruded toward the center, thereby enabling installation and operation suited to the installation location and purpose.

Claims

In a system for operating a floor signal at an intersection (10) where 1.m roads (20) intersect each other, A floor signal device (100) comprising m sets of floor signal lights (100') installed in each of m divided areas at the set point of the intersection (10) and allocated so that only drivers / pedestrians of vehicles on each road (20) can check the lighting color, each set of floor signal lights (100') outputs m lighting signals according to a lighting control signal, and the lighting signals of the floor signal lights (100') are colored lighting for traffic signals that light up in different colors; An object detection module (200) installed on each road (20) and detecting vehicle objects and pedestrian objects located on the lane (21) or crosswalk of the road (20) in real time and generating an object detection signal in real time; A control module (300) that receives an object detection signal in real time from the object detection module (200) and, depending on whether an object is detected on each road (20), generates a color lighting control signal for a traffic signal in real time for each road (20) and transmits it to m sets of floor signal lights (100') constituting the floor signal device (100); An intersection floor signal operation system characterized in that it enables drivers / pedestrians of each road (20) to determine whether they can safely enter another road (20) from the lighting color of the floor signal light (100') assigned to the road (20).

2. In paragraph 1, The above-mentioned floor signal light (100') is installed in each area divided into m by being embedded in the floor surface of the intersection entry area (12) of each road (20) connected to the intersection (10), or An intersection floor signal operation system characterized in that it is installed in each area divided into m sections while being buried in the floor surface of the central area of ​​the intersection (11) facing each road (20). In a road floor signal device installed on the floor surface of a passage setting point at an intersection where 3.m roads intersect or an industrial site, A control signal receiving unit (110) that receives a lighting control signal from the outside to indicate whether or not entry into each road is possible based on whether or not an object is detected on each road, wherein the lighting control signal is a control signal for lighting up traffic signals in different colors; A light emitting unit (120) that receives a lighting control signal received from the control signal receiving unit (110) and generates a color lighting light source for a traffic signal allocated to each floor traffic light (100') corresponding to each road according to the lighting control signal; A floor traffic light (100') is provided with m projecting blocks (132) installed corresponding to each road, and a traffic signal color lighting light source transmitted from the light emitting unit (120) is transmitted through each projecting block (132) so that the lighting color indicating whether entry to the m roads can be identified by the projecting block unit (130); A road floor signal device characterized by comprising a configuration including an optical fiber cable unit (140) comprising a plurality of optical fiber cables (140') that transmit a lighting source allocated to each floor signal light (100') corresponding to each road of the light-emitting unit (120) to each light-emitting block (132) of the light-emitting block unit (130).

4. In paragraph 3, The above light emitting unit (120) is A plurality of relays (1211) that receive a lighting control signal from the above control signal receiving unit (110); A plurality of LED modules (122) for lighting colors, each comprising a blue LED (1222) and a red LED (1221), which are turned on and off by each relay (1211); A plurality of reflectors (123) connected to each LED module (122) for each lighting color and each receiving one light source selected from among a blue light source and a red light source; A reflector box (124) having a plurality of relays (1211), LED modules for lighting color (122), and reflectors (123) arranged internally; It is composed of a configuration including an optical terminal box (125) in which one end of a plurality of optical fiber cables (140') is arranged and coupled with the reflector box (124); The above light block unit (130) is A plurality of reflectors (131) to which the other end of the optical fiber cable (140') is connected; A road floor signal device characterized by comprising a configuration including a plurality of light-emitting blocks (132) that are connected to each reflector (131) to receive a light source and have a light-emitting surface (1321) made of a transparent material to irradiate the light source to the outside.

5. In paragraph 3, The above optical fiber cable (140') is An optical core (141) passing through the central portion; an inner cladding (142) surrounding the optical core (141); an inner covering (143) surrounding the inner cladding (142); an outer covering (144) surrounding the inner covering (143); and It is composed of a configuration including an end cladding (145) for light transmission that wraps around one end and the other end of the optical core (141), and is made of a transparent material to transmit the light source transmitted to the optical core (141). A road floor signal device characterized in that the end cladding (145) for light transmission at one end of the optical core (141) constituting the optical fiber cable (140') is connected to the reflector (123) of the light-emitting unit (120), and the end cladding for light transmission at the other end of the optical core (141) is connected to the reflector (131) of the light-transmitting block (132).

6. In paragraph 5, The above reflector (131) is A road floor signal device characterized by further comprising a guide (1311) having a plurality of guide pieces (13112) that form cladding fixing holes into which end claddings (145) for optical transmission of the same number of optical fiber cables (140') as the number of roads (20) intersecting at the intersection (10) are respectively inserted and fixed.

7. In paragraph 3, The above light block (132) is 1) The light-transmitting surface (1321) is arranged at an angle of 45° to 125° with respect to the horizontal road surface so that sunlight does not directly shine on the light-transmitting surface (1321), or 2) A light-emitting surface (1321) is arranged to be inclined at an angle of 125° to 165° with respect to a horizontal road surface, and a reflective mirror (1323) is fixed to the bottom of a mirror fixing piece (1322) that is horizontally protruded and extended from the upper end of the light-emitting block (132) so that sunlight does not directly shine on the light-emitting surface (1321), or 3) A road floor signal device characterized in that it has a light-emitting surface (1321) arranged to be inclined at an angle of 15° to 45° with respect to a horizontal road surface, a reflective mirror (1323) fixed to the lower surface of a mirror fixing piece (1322) that is formed by protruding horizontally from the upper end of the light-emitting block (132) and extending, and a reflective mirror (1323) fixed to the road surface so that sunlight does not directly shine on the light-emitting surface (1321).

8. In paragraph 3, The above-mentioned light block (132) is formed in a shape and size that is only recognized in the driving direction field of view of the vehicle driver, and is installed flush with the road surface or is installed so that it gradually protrudes from the road surface as it goes toward the center, and the above-mentioned floor signal light (100') is installed in each of m-divided areas while being embedded in the floor surface of the intersection entry area (12) of each road (20) connected to the intersection (10), or is installed in each of m-divided areas while being embedded in the floor surface of the central area (11) of the intersection facing each road (20).

9. In paragraph 3, The above light-emitting block (132) is composed of a set of multiple unit blocks (132') arranged in a straight line. A road floor signal device characterized in that the height of the unit block (132') increases as it goes toward the central area (11) of the intersection.

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