KR20210004632A - Road lighting device for preventing illegal parking - Google Patents

Abstract

The present invention relates to a road lighting device for illuminating differentiated light based on whether a vehicle is detected within a certain range around the device. The road lighting device comprises: a sensing unit; a processor; and a top lighting unit.

Description

Road lighting device for preventing illegal parking

Hereinafter, a technology related to a road lighting device that illuminates light classified according to an illumination mode is provided.

Existing road lighting facilities are installed and used for the purpose of securing the visibility of pedestrians and vehicle drivers at night, traffic safety, and crime prevention. Road lighting facilities occupy a lot of space compared to the function of securing the visibility of pedestrians and vehicle drivers, and their utility is inferior to the installation cost.

In addition, illegal parking and stopping vehicles only perform crackdowns while driving around the enforcement area, and methods and devices for improving citizens' perception of illegal parking and stopping are insufficient.

Korean Patent Publication No. 10-2013-0055872 (Publication date: May 29, 2013) Korean Patent Publication No. 10-2017-0092841 (Publication date: August 14, 2017)

According to an embodiment, the road lighting device detects whether there is a vehicle within a certain range around the road lighting device and generates vehicle detection information, based on the vehicle detection information generated by the sensing unit. In response to the determination that the vehicle is present, a processor for selecting one of at least two lighting modes, an upper end disposed on the top of the road lighting device and illuminating the light according to the selected lighting mode toward the vehicle It may include a lighting unit.

According to an embodiment, the road lighting device further counts the length of time the vehicle is detected by the sensing unit, is disposed on the side of the road lighting device, and is lit to project a warning sign. And the processor may transmit a projection signal to at least one of the upper lighting unit and the side lighting unit in response to a time length at which the vehicle is detected is greater than or equal to a threshold time length.

In addition, at least one of the upper lighting unit and the side lighting unit is lit to enable projection of a warning sign related to illegal parking and stopping, and in response to receiving the projection signal, the warning sign may be projected toward the vehicle.

According to an embodiment, the sensing unit may sense a distance from the upper lighting unit to the upper portion of the vehicle, and the processor may determine a size of the warning mark projected from the upper lighting unit based on the distance.

In addition, the sensing unit may sense a distance from the side lighting unit to the side of the vehicle, and the processor may determine a size of the warning mark projected from the side lighting unit based on the distance.

The sensing unit of the road lighting device according to an embodiment may detect whether the vehicle is within a predetermined range around the road lighting device based on a point corresponding to at least one of the top lighting unit and the side lighting unit.

According to an embodiment, the processor calculates an area occupied by the vehicle among the areas detectable by the sensing unit, and in response to a case where the area occupied by the vehicle is greater than or equal to a critical area, the vehicle is located around the road lighting device Can be determined.

In addition, in each of the at least two lighting modes, at least one of the lighting color and the blinking method of the lighting unit is set differently, and the first lighting mode and the color in the second wavelength band are configured to light the lighting unit with a color within the first wavelength band. It may include a second lighting mode configured to light the lighting unit.

The sensing unit of the apparatus according to an embodiment may generate the vehicle detection information by emitting a signal having a predetermined wavelength and sensing a reflected signal from which the radiated signal is reflected.

1 is a block diagram showing a general configuration of a road lighting device according to an embodiment.
2 is a block diagram showing a general configuration of a road lighting device according to another embodiment.
3 is a flowchart illustrating a method of operating a road lighting device according to an exemplary embodiment.
4 is a diagram illustrating that a road lighting device according to an embodiment detects whether a vehicle is within a predetermined range around the device.
5 is a diagram illustrating a method of detecting whether a vehicle is within a predetermined range around the device by a road lighting device according to an exemplary embodiment.
6 is a diagram illustrating that the upper and side lighting units of the road lighting apparatus illuminate a vehicle according to an exemplary embodiment.

Specific structural or functional descriptions of the embodiments are disclosed for illustrative purposes only, and may be changed in various forms and implemented. Accordingly, the embodiments are not limited to a specific disclosure form, and the scope of the present specification includes changes, equivalents, or substitutes included in the technical idea.

Although terms such as first or second may be used to describe various components, these terms should be interpreted only for the purpose of distinguishing one component from other components. For example, a first component may be referred to as a second component, and similarly, a second component may be referred to as a first component.

When a component is referred to as being "connected" to another component, it is to be understood that it may be directly connected or connected to the other component, but other components may exist in the middle.

Singular expressions include plural expressions unless the context clearly indicates otherwise. In the present specification, terms such as "comprise" or "have" are intended to designate that the described feature, number, step, action, component, part, or combination thereof exists, but one or more other features or numbers, It is to be understood that the presence or addition of steps, actions, components, parts or combinations thereof does not preclude the possibility of preliminary exclusion.

Unless otherwise defined, all terms, including technical or scientific terms, used herein have the same meaning as commonly understood by one of ordinary skill in the relevant technical field. Terms as defined in a commonly used dictionary should be interpreted as having a meaning consistent with the meaning in the context of the related technology, and should not be interpreted as an ideal or excessively formal meaning unless explicitly defined in this specification. Does not. Hereinafter, embodiments will be described in detail with reference to the accompanying drawings. The same reference numerals in each drawing indicate the same members.

1 is a block diagram showing a general configuration of a road lighting apparatus 100 according to an embodiment.

The road lighting apparatus 100 may include a sensing unit 110, a processor 120, an upper lighting unit 130, and a side lighting unit 140. The sensing unit 110 may detect whether there is a vehicle within a certain range around the device 100 and generate vehicle detection information. The vehicle detection information may be basic information for detecting whether there is a vehicle, and may be information on whether there is a vehicle generated based on the basic information. Vehicle detection information is generated based on the sensing unit 110 radiating at least one of a sound signal, an optical signal, and an electromagnetic wave signal of a predetermined wavelength toward the vehicle position and sensing the reflected reflected signal. ) May include the distance between. For example, the sound signal may be an ultrasonic band, and the optical signal may be an infrared band. In addition, the electromagnetic wave signal may be a radar sensor. However, the types of signals of a certain wavelength radiated by the sensing unit are not limited thereto. If the processor 120 determines that the sensed distance is within the threshold distance, it may determine that there is a vehicle.

The processor 120 may select one of at least two lighting modes in response to a case in which it is determined that the vehicle exists based on vehicle detection information generated by the sensing unit 110. At least one of the upper lighting unit 130 and the side lighting unit 140 may illuminate the vehicle in the lighting mode selected by the processor 120. An illumination mode in which the upper illumination unit 130 and the side illumination unit 140 illuminate light will be described in detail later with reference to FIG. 3.

2 is a block diagram showing a general configuration of a road lighting device 200 according to another embodiment.

According to another embodiment, the road lighting device 200 may include a sensing unit 210, a calculation unit 221, a determination unit 220, an upper lighting unit 230, and a side lighting unit 240. The calculation unit 221 and the determination unit 220 calculate data sensed by the processor and memory of the device 200, and determine whether a vehicle is within a certain range around the device 200 based on the calculated data. I can. Since the sensing unit 210, the upper lighting unit 230, and the side lighting unit 240 have been previously described with reference to FIG. 1, detailed descriptions are omitted.

According to an embodiment, the calculation unit 221 may count a time when the vehicle is detected by the sensing unit 210. In addition, the calculation unit 221 may calculate a distance from the top lighting unit 230 to the top of the vehicle and a distance from the side lighting unit 240 to the side of the vehicle. The calculation unit 221 may calculate an area occupied by the vehicle among the areas detectable by the sensing unit 210.

The determination unit 220 may determine whether there is a vehicle within a certain range around the device 200, based on the data calculated by the calculation unit 221, among the upper lighting unit 230 and the side lighting unit 240 At least one illumination mode can be determined. In addition, the determination unit 220 may determine the size and angle of the warning mark projected from at least one of the top lighting unit 230 and the side lighting unit 240.

3 is a flowchart illustrating a method of operating a road lighting device according to an exemplary embodiment.

In step 310, the device may detect vehicle detection information related to a vehicle within a predetermined range around the road lighting device.

In step 320, the device may determine whether a vehicle exists within a certain range around the road lighting device based on the vehicle detection information.

When the device determines that the vehicle exists within a certain range around the device, in step 330, the device may illuminate light toward the vehicle in the first illumination mode. The first lighting mode may be a warning lighting mode. For example, the warning lighting mode is a lighting mode in which the upper lighting unit illuminates a red light, and may illuminate a light of a color that raises awareness to pedestrians and illegally parked vehicle drivers.

In contrast, when it is determined that the vehicle does not exist within a certain range around the device, in step 331, the device may illuminate light toward the vehicle in the second illumination mode. The second lighting mode may be a basic lighting mode. As an example, the basic illumination mode is an illumination mode in which the upper illumination unit illuminates white or daylight color light, and may illuminate light of an illumination color suitable for securing visibility of pedestrians and driving vehicles.

The first lighting mode may be configured to light the lighting unit with a color within the first wavelength band, and the second lighting mode may be configured to light the lighting unit with a color within the second wavelength band. The color in the first wavelength band may be a color that causes an alert to a driver of a vehicle that is illegally parked or stopped. The color in the second wavelength band may be a color suitable for securing visibility of pedestrians and driving drivers. For example, the color in the first wavelength band may be red, and the color in the second wavelength band may be daylight color and white color. Accordingly, the road lighting device can operate in two or more modes depending on whether a vehicle is detected, and thus can be used efficiently. The first wavelength band and the second wavelength band may be distinct wavelength bands, but are not limited thereto, and the second wavelength band may belong to the first wavelength band, and vice versa. For example, when light in the first wavelength band is red light and light in the second wavelength band is white light, the first wavelength band may be included in the second wavelength band.

In step 340, the device counts the time when the vehicle is detected, and determines whether the length of time when the vehicle is detected is equal to or greater than the threshold time length. When the length of time at which the vehicle is sensed is greater than or equal to the threshold length of time, a projection signal may be transmitted to at least one of the upper lighting unit and the side lighting unit. The length of time the vehicle is detected may be a length of time that the vehicle is continuously detected by the sensing unit. If the device does not continuously detect the vehicle for more than a critical length of time, the operation process of the device may be terminated or the lighting mode of the lighting unit may be switched to the basic lighting mode.

In step 350, at least one of the top lighting part and the side lighting part of the device may be lit so as to project a warning sign related to illegal parking and stopping, and when a projection signal is received, the warning sign may be projected toward the vehicle. A warning sign related to illegal parking may be a sign that instructs or warns a pedestrian or a driver of an illegal parking vehicle. For example, the warning mark may be an exclamation mark or an X (X) mark, and may be a sign indicating the phrase "Illegal Parking".

According to an embodiment, when the device for projecting the warning sign does not detect a vehicle within a predetermined range around the device, at least one of the upper lighting unit and the side lighting unit of the device may be switched to the basic lighting mode.

According to the above embodiment, when the driver illegally parks or stops, at least one of the upper and side lighting units of the device illuminates the vehicle, thereby recognizing that the driver is receiving attention. It can make the driver self-aware of wrong behavior, and it can induce the driver to do the right thing unconsciously.

4 is a diagram illustrating that the road lighting device according to an embodiment detects whether the vehicle 400 is within a predetermined range around the device.

The sensing unit of the road lighting device may include an upper sensing unit 410 disposed at a point corresponding to the upper lighting unit 430, and a side sensing unit 411 disposed at a point corresponding to the side lighting unit 440. The upper sensing unit 410 and the side sensing unit 411 may detect whether the vehicle 400 is within a certain range around the road lighting device. The device can accurately sense the vehicle 400 by sensing whether the vehicle 400 is present at a location that is distinct from each other. For example, even when the upper sensing unit 410 cannot sense the vehicle 400, the side sensing unit 411 may sense the vehicle 400, and vice versa.

According to an embodiment, the upper sensing unit 410 may sense a distance from at least one of the upper lighting unit 430 and the upper sensing unit 410 to the upper portion of the vehicle 400. A distance to the upper portion of the vehicle 400 may be sensed based on a signal having a predetermined wavelength that is radiated from the upper sensing unit 410 and reflected again. The signal having a predetermined wavelength may be at least one of a sound signal, an optical signal, and an electromagnetic wave signal. For example, the sound signal may be an ultrasonic band, and the optical signal may be an infrared band. In addition, the electromagnetic wave signal may be a radar sensor. However, the types of signals having a predetermined wavelength radiated by the upper sensing unit 410 are not limited thereto. For example, when the upper sensing unit 410 is an ultrasonic sensor, the upper sensing unit 410 measures the length of time during which ultrasonic waves emitted by the ultrasonic sensor are reflected back to the upper sensing unit 410 and return, Half of the length multiplied by the traveling speed of the ultrasonic wave may be calculated as the distance from the upper sensing part 410 to the upper part of the vehicle 400.

According to another embodiment, the side sensing unit 411 may sense a distance from at least one of the side lighting unit 440 and the side sensing unit 411 to a side of the vehicle 400. Since the method of sensing the distance to the side of the vehicle 400 is similar to the method of sensing the distance to the upper part of the vehicle 400 described above, a detailed description will be omitted.

5 is a diagram illustrating a method of detecting whether a vehicle is within a predetermined range around the device by a road lighting device according to an exemplary embodiment.

The processor of the device may calculate an area occupied by the vehicle among the areas detectable by the sensing unit, and determine that there is a vehicle around the device in response to a case where the area occupied by the vehicle is greater than or equal to the critical area. The sensing unit may include an upper sensing unit 510 disposed at a position corresponding to the upper lighting unit 530, and the upper sensing unit 510 may sense a vehicle within a predetermined area. For example, the upper sensing unit 510 may sense whether a vehicle is inside the circle 520 having a predetermined area on the ground. The upper sensing unit 510 may determine that there is a vehicle in response to a case where a vehicle occupies 30% or more of the predetermined area of the circle 520.

In addition, the sensing unit may include a side sensing unit 511 disposed at a position corresponding to the side lighting unit 540, and the side sensing unit 511 may sense a vehicle within a predetermined area. When the area occupied by the vehicle is greater than or equal to the critical area, the side sensing unit 511 may determine that there is a vehicle around the device.

According to an embodiment, when the length of time for detecting the vehicle is greater than or equal to the threshold length of time, the device may determine that there is a vehicle around the device. At this time, the critical time length for determining that there is a vehicle around the device is referred to as the first critical time length, and at least one of the upper lighting unit 530 and the side lighting unit 540 is lit to enable projection of a warning sign related to illegal parking and stopping. The critical time length may be referred to as the second critical time length. The first critical time length may be shorter than the second critical time length, and the device may determine that there is a vehicle around the device, and after a certain time elapses, a warning sign related to illegal parking and stopping may be projected.

6 is a diagram illustrating that the upper lighting unit 630 and the side lighting unit 640 of the road lighting apparatus according to an embodiment illuminate a vehicle.

The processor may select one of at least two lighting modes depending on whether a vehicle is detected. At least one of the upper lighting unit 630 and the side lighting unit 640 may illuminate the light toward the vehicle according to the lighting mode selected by the processor.

The lighting mode may include a first lighting mode and a second lighting mode. When it is determined that there is a vehicle, the processor may select a first lighting mode from among at least two lighting modes, and when it is determined that there is no vehicle, the processor may select a second lighting mode.

In response to a time length at which the vehicle is sensed is greater than or equal to the threshold time length, the processor may transmit a projection signal to at least one of the upper lighting unit 630 and the side lighting unit 640. At least one of the upper lighting unit 630 and the side lighting unit 640 may project warning signs 650 and 651 related to illegal parking and stopping toward the vehicle in response to receiving a projection signal.

According to an embodiment, the upper sensing unit 610 senses the distance from the upper lighting unit 630 to the upper part of the vehicle, and the processor is a warning projected from the upper lighting unit 630 based on the distance to the upper part of the vehicle. The size of the mark 651 can be determined. The projected warning mark 651 may be set smaller than the width of the vehicle so as not to deviate from the top of the vehicle. Since the height of the vehicle may be different for each sensed vehicle, the size of the warning mark 651 to be projected from the upper lighting unit 630 may be set differently. For example, when the distance from the upper lighting part 630 to the upper part of the vehicle is short, the size of the warning mark 651 projected by the upper lighting part 630 may be small. On the other hand, when the distance from the upper lighting part 630 to the upper part of the vehicle is long, the size of the warning mark 651 projected by the upper lighting part 630 may be large.

According to an embodiment, the side sensing unit 611 senses the distance from the side lighting unit 640 to the side of the vehicle, and the processor is a warning projected from the side lighting unit 640 based on the distance to the side of the vehicle. The size of the mark 650 can be determined. A method of determining the size of the warning mark 650 corresponding to the side lighting unit 640 is similar to the method of determining the size of the warning mark 651 corresponding to the upper lighting unit 630, and thus a detailed description thereof will be omitted.

According to an embodiment, based on the position of the vehicle sensed by the sensing units 610 and 611, the processor includes the warning signs 650 and 651 projected from at least one of the upper lighting unit 630 and the side lighting unit 640. You can determine the projection angle. The projection angle of the upper lighting unit 630 may have a range of 180 degrees toward the ground based on a virtual line horizontal to the ground. The projection angle of the side lighting unit 640 may have a projection angle in a range corresponding to the projection angle of the upper lighting unit 630.

The embodiments described above may be implemented as a hardware component, a software component, and/or a combination of a hardware component and a software component. For example, the devices, methods, and components described in the embodiments include, for example, a processor, a controller, an arithmetic logic unit (ALU), a digital signal processor, a microcomputer, a field programmable gate (FPGA). array), programmable logic unit (PLU), microprocessor, or any other device capable of executing and responding to instructions, such as one or more general purpose computers or special purpose computers. The processing device may execute an operating system (OS) and one or more software applications executed on the operating system. In addition, the processing device may access, store, manipulate, process, and generate data in response to the execution of software. For the convenience of understanding, although it is sometimes described that one processing device is used, one of ordinary skill in the art, the processing device is a plurality of processing elements and/or a plurality of types of processing elements. It can be seen that it may include. For example, the processing device may include a plurality of processors or one processor and one controller. In addition, other processing configurations are possible, such as a parallel processor.

The software may include a computer program, code, instructions, or a combination of one or more of these, configuring the processing unit to behave as desired or processed independently or collectively. You can command the device. Software and/or data may be interpreted by a processing device or to provide instructions or data to a processing device, of any type of machine, component, physical device, virtual equipment, computer storage medium or device. , Or may be permanently or temporarily embodyed in a transmitted signal wave. The software may be distributed over networked computer systems and stored or executed in a distributed manner. Software and data may be stored on one or more computer-readable recording media.

The method according to the embodiment may be implemented in the form of program instructions that can be executed through various computer means and recorded in a computer-readable medium. The computer-readable medium may include program instructions, data files, data structures, and the like alone or in combination. The program instructions recorded on the medium may be specially designed and configured for the embodiment, or may be known and usable to those skilled in computer software. Examples of computer-readable recording media include magnetic media such as hard disks, floppy disks, and magnetic tapes, optical media such as CD-ROMs and DVDs, and magnetic media such as floptical disks. -A hardware device specially configured to store and execute program instructions such as magneto-optical media, and ROM, RAM, flash memory, and the like. Examples of program instructions include not only machine language codes such as those produced by a compiler but also high-level language codes that can be executed by a computer using an interpreter or the like. The hardware device described above may be configured to operate as one or more software modules to perform the operation of the embodiment, and vice versa.

As described above, although the embodiments have been described by the limited drawings, a person of ordinary skill in the art can apply various technical modifications and variations based on the above. For example, the described techniques are performed in a different order from the described method, and/or components such as a system, structure, device, circuit, etc. described are combined or combined in a form different from the described method, or other components Alternatively, even if substituted or substituted by an equivalent, an appropriate result can be achieved.

Claims (19)

In the road lighting device,
A sensing unit for generating vehicle detection information by detecting whether there is a vehicle within a predetermined range around the road lighting device;
A processor for selecting one of at least two lighting modes in response to determining that a vehicle exists based on the vehicle detection information generated by the sensing unit;
A top lighting unit disposed on the upper end of the road lighting device and illuminating light according to the selected lighting mode toward the vehicle
Road lighting device comprising a. The method of claim 1,
The processor,
Counting the length of time the vehicle is sensed by the sensing unit
Road lighting device The method of claim 2,
A side lighting unit that is disposed on the side of the road lighting device and is lit to project a warning sign
Including more,
The processor,
In response to the time length at which the vehicle is detected is greater than or equal to a threshold time length, transmitting a projection signal to at least one of the upper lighting unit and the side lighting unit
Road lighting devices. The method of claim 3,
At least one of the top lighting unit and the side lighting unit,
Lights up to enable projection of warning signs related to illegal parking,
In response to receiving the projection signal, projecting the warning sign toward the vehicle
Road lighting devices. The method of claim 4,
The sensing unit,
Sensing the distance from the upper lighting part to the upper part of the vehicle,
The processor,
Based on the distance, to determine the size of the warning mark projected from the top lighting unit
Road lighting devices. The method of claim 4,
The sensing unit,
Sensing the distance from the side lighting unit to the side of the vehicle,
The processor,
Based on the distance, to determine the size of the warning mark projected from the side lighting unit
Road lighting devices. The method of claim 4,
The sensing unit,
To detect whether the vehicle is within a predetermined range around the road lighting device based on a point corresponding to at least one of the top lighting unit and the side lighting unit,
Road lighting devices. The method of claim 1,
The processor,
Calculate an area occupied by the vehicle among the areas detectable by the sensing unit,
In response to a case where the area occupied by the vehicle is greater than or equal to a critical area, determining that there is a vehicle around the road lighting device
Road lighting devices. The method of claim 1,
Each of the at least two lighting modes,
At least one of the lighting color and flashing method of the lighting unit is set differently,
Road lighting devices. The method of claim 1,
The lighting mode,
A first illumination mode configured to light the illumination unit with a color within the first wavelength band; And
A second illumination mode configured to light the illumination unit with a color within the second wavelength band
Road lighting device comprising a. The method of claim 1,
The sensing unit,
To generate the vehicle detection information by emitting a signal of a certain wavelength and sensing a reflected signal from which the radiated signal is reflected
Road lighting devices. In the road lighting device,
A sensing unit that detects vehicle detection information related to a vehicle within a predetermined range around the road lighting device;
A processor that determines whether a vehicle exists within a predetermined range around the road lighting device based on the vehicle detection information, and selects one of at least two lighting modes in response to the determination that the vehicle exists;
A top lighting unit disposed on an upper end of the road lighting device and illuminating light according to the selected lighting mode toward the vehicle;
A side lighting unit disposed on the side of the road lighting device and illuminating light according to the selected lighting mode toward the vehicle
Road lighting device comprising a. The method of claim 12,
The processor,
Counting the length of time the vehicle is sensed by the sensing unit
Road lighting device The method of claim 13,
In response to the time length at which the vehicle is detected is greater than or equal to a threshold time length, transmitting a projection signal to at least one of the upper lighting unit and the side lighting unit
Road lighting devices. The method of claim 14,
At least one of the top lighting unit and the side lighting unit,
Lights up to enable projection of warning signs related to illegal parking,
In response to receiving the projection signal, projecting the warning sign toward the vehicle
Road lighting devices. The method of claim 12,
The processor,
Calculate an area occupied by the vehicle among the areas detectable by the sensing unit,
In response to a case where the area occupied by the vehicle is greater than or equal to a critical area, determining that there is a vehicle around the road lighting device
Road lighting devices. The method of claim 12,
The sensing unit,
To generate the vehicle detection information by emitting a signal of a certain wavelength and sensing a reflected signal from which the radiated signal is reflected
Road lighting devices. In the method of operating the road lighting device,
Detecting whether there is a vehicle within a predetermined range around the road lighting device;
Generating vehicle detection information based on whether the vehicle is present;
Determining whether a vehicle exists based on the generated vehicle detection information;
Selecting one of at least two lighting modes based on a determination as to whether the vehicle is present or not; And
Illuminating light toward the vehicle according to the selected lighting mode
A method of operating a road lighting device comprising a. In the method of operating the road lighting device,
Detecting vehicle detection information related to a vehicle within a predetermined range around the road lighting device;
Determining whether a vehicle exists within a predetermined range around the road lighting device based on the vehicle data;
In response to determining that the vehicle is present, selecting one of at least two lighting modes; And
Illuminating light toward the vehicle from at least one of an upper end and a side surface of the road lighting device according to the selected lighting mode
A method of operating a road lighting device comprising a.

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