Method and system for controlling street light

Abstract

According to an embodiment of the present application, provided is a method for controlling a plurality of street lights through a first control operation based on the travel speed of a moving object and a second control operation based on traffic volume. The first control operation in the method comprises: a step in which a first street light detects at least one moving object that approaches within a predetermined detection range and the travel speed of the moving object; a step in which a lighting area size and a lighting duration in the travel direction of the moving object are determined from the first street light according to the detected speed of the moving object; a step in which a lighting activation signal is transmitted to one or more second street lights, successively arranged spaced apart from the first street light in the travel direction, according to the determined size of the lighting area; and a step in which the second street light is lit by controlling the brightness of the second street lights and the lighting duration on the basis of the lighting activation signal. The second control operation in the method comprises: a step in which the first street light detects the number of moving objects traveling in a predetermined travel section on the basis of a wireless communication connection; a step in which the current traffic volume of the travel section is determined according to the number of moving objects; and a step in which, when the current traffic volume is equal to or greater than a predetermined reference value, the first control operation is stopped for a plurality of third street lights in the travel section including the first street light, and the third street lights are kept lit at a constant brightness.

Description

Control method and control system for streetlights

[0001] The present application relates to a control method and a control system for streetlights.

[0002] Generally, multiple streetlights are installed at regular intervals along roads to ensure the safety of pedestrians and vehicles. These streetlights primarily illuminate the road and surroundings at night, helping drivers and pedestrians move safely. In particular, the lighting provided by streetlights plays a crucial role in reducing the risk of traffic accidents by improving visibility in dark environments, and in providing a safe walking environment for pedestrians. Furthermore, streetlights are an essential element on roads in suburban areas as well as urban centers, offering visual clarity while driving that allows drivers to easily recognize road directions, signs, and obstacles.

[0003] However, most existing streetlights remain lit at a constant brightness regardless of whether there are vehicles or pedestrians on the road. This approach is inefficient in terms of energy efficiency and leads to excessive power consumption because lighting is not concentrated only where it is actually needed. For example, during nighttime hours, all streetlights remain continuously illuminated at the same brightness even on road sections with little traffic or few pedestrians, resulting in unnecessary energy waste.

[0004] The method of turning multiple streetlights on or off simultaneously is one of the main causes of excessive electricity costs. Particularly in large-scale road networks, this inefficient lighting management can lead to a surge in maintenance costs, which can have a negative impact on the environment in the long run. Therefore, a more efficient road lighting system is required to address these issues, necessitating measures that can save energy and reduce costs while continuously ensuring the safety of road users.

[0005] The present application aims to provide a control method and a control system for streetlights.

[0006] According to an embodiment of the present application, a method for controlling a plurality of streetlights is provided through a first control operation based on the driving speed of a moving object and a second control operation based on traffic volume. The method comprises: a first control operation including the step of detecting at least one moving object approaching within a predetermined detection range and the driving speed of said moving object by a first streetlight; a step of determining the size of a lighting area and the lighting maintenance time in the driving direction of said moving object from the first streetlight according to the detected speed of said moving object; a step of transmitting a lighting activation signal to at least one second streetlight spaced apart from the first streetlight in the driving direction according to the determined size of the lighting area; and a step of controlling the brightness and the lighting maintenance time of said second streetlight based on the lighting activation signal to light up said second streetlight; and a second control operation including the step of at least one first streetlight detecting the number of said moving objects driving within a predetermined driving section based on a wireless communication connection; and a step of determining the current traffic volume of said driving section according to the number of said moving objects. And when the current traffic volume is greater than or equal to a predetermined threshold, the method may include the step of stopping the first control operation for a plurality of third streetlights within the driving section including the first streetlight, and maintaining the third streetlights in a state of being lit at a constant brightness.

[0007] In addition, the first control operation and the second control operation may be activated within a predetermined reference time range, or when the ambient illuminance detected by at least one of the plurality of streetlights is below a predetermined reference value.

[0008] Additionally, when the first control operation is activated, if the first street light simultaneously detects a first moving body and a second moving body of different driving speeds approaching within the detection range, the step of determining the size of the lighting area and the lighting maintenance time may include determining the size of the lighting area based on the faster speed between the first driving speed of the first moving body and the second driving speed of the second moving body, and determining the lighting maintenance time based on the smaller speed.

[0009] Additionally, the step of determining the size of the lighting area and the lighting maintenance time further includes the step of determining whether the difference between the first driving speed of the first moving body and the second driving speed of the second moving body corresponds to a predetermined effective speed range, and the step of determining the size of the lighting area based on the faster speed and determining the lighting maintenance time based on the smaller speed can be performed if the difference between the first driving speed and the second driving speed is within the effective speed range.

[0010] Additionally, the first control operation may further include the step of acquiring weather data; and the step of setting the size of the lighting area according to the driving speed of the moving body based on the weather data.

[0011] Additionally, the first control operation further includes the step of acquiring weather data including the amount of precipitation and the duration of precipitation in the installation area of ​​the plurality of streetlights, and the step of turning on the second streetlight may include, when the amount of precipitation and the duration of precipitation are greater than or equal to a predetermined standard amount of precipitation and standard duration, turning on the brightness of the first streetlight where the entry of a moving object is detected at a first brightness that minimizes road surface reflection, and turning on at least one second streetlight corresponding to the size of the lighting area at a second brightness higher than the first brightness.

[0012] Additionally, the first control operation further includes the step of acquiring weather data including the amount of precipitation and the duration of precipitation in the installation area of ​​the plurality of streetlights, and the step of turning on the second streetlight may include, when the amount of precipitation and the duration of precipitation are greater than or equal to a predetermined standard amount of precipitation and standard duration, turning on the brightness of the first streetlight where the entry of a moving object is currently detected and at least one fourth streetlight adjacent to the first streetlight among the plurality of second streetlights to a first brightness that minimizes road surface reflection, and turning on the remaining streetlights among the plurality of second streetlights, excluding the fourth streetlight, to a second brightness higher than the first brightness.

[0013] A computer program is provided according to an embodiment of the present application. The program may be stored on a recording medium to execute a method according to an embodiment of the present application.

[0014] According to the embodiments of the present application, traffic volume is determined based on the detection of a moving object, and a first control operation and a second control operation are performed according to the traffic volume, thereby enabling more efficient control of the streetlights.

[0015] According to the embodiments of the present application, when a single street light simultaneously detects multiple moving objects with different speeds, the size of the lighting area is set based on the moving object with the faster speed, and the lighting duration is set based on the moving object with the slower speed, thereby resolving the problem of the street light flashing excessively in response to the detection of multiple moving objects.

[0016] According to the embodiments of the present application, by changing the size of the lighting area to reflect weather conditions with poor visibility based on weather data, the effect of preventing safety accidents of a moving object can be increased.

[0017] According to the embodiments of the present application, the size of the lighting area is set according to the movement speed of the moving object to illuminate the streetlight in front, and when road surface reflection is predicted due to weather conditions, the brightness of the streetlight that detects the moving object is controlled to a low level, thereby preventing the risk of accidents caused by road surface reflection.

[0018] The effects obtainable from the embodiments of the present application are not limited to those mentioned above, and other unmentioned effects will be clearly understood by those skilled in the art to which the present application belongs from the description below.

[0019] A brief description of each drawing is provided to help to better understand the drawings cited in this application.

[0020] FIG. 1 is a drawing for explaining a street light control system according to an embodiment of the present application.

[0021] FIG. 2 is a block diagram of a street light control device according to an embodiment of the present application.

[0022] FIG. 3 is a flowchart of a method for controlling a plurality of streetlights through a first control operation based on the driving speed of a moving body and a second control operation based on traffic volume according to an embodiment of the present application.

[0023] FIG. 4 is a drawing for exemplarily illustrating a second control operation according to an embodiment of the present application.

[0024] FIGS. 5 and FIGS. 6 are flowcharts of a first control operation according to an embodiment of the present application.

[0025] FIG. 7 is a drawing for exemplarily illustrating a first control operation according to an embodiment of the present application.

[0026] FIG. 8 is a flowchart of a first control operation according to an embodiment of the present application.

[0027] FIGS. 9 and FIGS. 10 are drawings for illustratively explaining a first control operation according to an embodiment of the present application.

[0028] The technical concept of the present application is subject to various modifications and may have various embodiments, and specific embodiments are illustrated in the drawings and described in detail. However, this is not intended to limit the technical concept of the present application to specific embodiments, and it should be understood that it includes all modifications, equivalents, and substitutions that fall within the scope of the technical concept of the present application.

[0029] In explaining the technical concept of the present application, detailed descriptions of related prior art are omitted if it is determined that such descriptions may unnecessarily obscure the essence of the present application.

[0030] The terms used herein are for describing embodiments and are not intended to limit or / or restrict the present application. Singular expressions include plural expressions unless the context clearly indicates otherwise. Additionally, numbers used herein (e.g., First, Second, etc.) are merely identifiers to distinguish one component from another.

[0031] In this specification, when it is stated that a part is connected to another part, this includes not only cases where they are directly connected, but also cases where they are indirectly connected with other components in between. Furthermore, when it is stated that a part includes a certain component, this means that, unless specifically stated otherwise, it does not exclude other components but may include additional components.

[0032] Furthermore, in this application, the term "or" is intended to mean an implicit "or" rather than an exclusive "or." That is, unless otherwise specified or evident from the context, "X uses A or B" is intended to mean one of the natural implicit substitutions. In other words, if X uses A; if X uses B; or if X uses both A and B, "X uses A or B" may apply to any of these cases. Additionally, the term "and / or" as used herein should be understood to refer to and include all possible combinations of one or more of the enumerated related configurations.

[0033] In addition, terms such as “~part,” “~device,” “~device,” and “~module” described in this application refer to a unit that processes at least one function or operation, and this can be implemented as hardware or software or a combination of hardware and software, such as a processor, microprocessor, microcontroller, CPU (Central Processing Unit), GPU (Graphics Processing Unit), APU (Accelerate Processor Unit), DSP (Digital Signal Processor), ASIC (Application Specific Integrated Circuit), FPGA (Field Programmable Gate Array), etc.

[0034] Furthermore, it is intended to clarify that the classification of the components in this application is merely based on the primary function each component is responsible for. That is, two or more components described below may be combined into a single component, or a single component may be divided into two or more components based on more subdivided functions. Additionally, each component described below may additionally perform some or all of the functions performed by other components in addition to its own primary function, and it is obvious that some of the primary functions performed by each component may be exclusively performed by other components.

[0035]

[0036] The method according to the embodiment of the present application may be performed on a personal computer, workstation, server computer device, etc., equipped with computing power, or on a separate device for this purpose.

[0037] Additionally, the method may be performed on one or more computing devices. For example, at least one step of the method according to an embodiment of the present application may be performed on a client device, and other steps may be performed on a server device. In this case, the client device and the server device may be connected via a network to transmit and receive computation results. Alternatively, the method may be performed by distributed computing technology.

[0038]

[0039] Hereinafter, embodiments of the present application will be described in detail in turn.

[0040]

[0041] FIG. 1 is a drawing for explaining a street light control system according to an embodiment of the present application.

[0042] Referring to FIG. 1, the street light control device (200) may include a plurality of street lights (100-1 to 100-n), a plurality of street light control devices (200-1 to 200-n), and a server (10).

[0043] A plurality of streetlights (100-1 to 100-n) are installed at regular intervals along the road, and can be turned on or off, or have their brightness controlled, according to the control of the streetlight control device (200-1 to 200-n) and the server (10). In an embodiment, the plurality of streetlights (100-1 to 100-n) can be controlled by one of a first control operation (or first control mode) based on the speed of a moving object and a second control operation (or second control mode) based on traffic volume.

[0044] In an embodiment, the first control operation and the second control operation may be activated within a predetermined reference time range, or when the ambient illuminance detected by at least one of the plurality of streetlights is below a predetermined reference value. That is, the plurality of streetlights (100-1 to 100-n) may be implemented to be activated by either the first control operation or the second control operation from a first time close to sunset to a second time after sunrise, and to remain in a turned-off state during other times. Additionally, the plurality of streetlights (100-1 to 100-n) may be implemented to be activated by either the first control operation or the second control operation when the ambient illuminance is below a certain reference illuminance value, and to remain in a turned-off state when it exceeds the reference illuminance value.

[0045] A plurality of street light control devices (200-1 to 200-n) may be installed on each of the street lights (100-1 to 100-n) or on at least some of them to control the operation of the street lights (100-1 to 100-n). At this time, the street light control devices (200-1 to 200-n) include a communication unit, through which the plurality of street lights (100-1 to 100-n) may be connected via communication to exchange signals and / or data with each other or with a server (10).

[0046] In an embodiment, the street light control device (200-1 to 200-n) may be connected to a mobile object via wireless communication, and based on this, the street light control device (200-1 to 200-n) and / or the server (10) may calculate the traffic volume of a specific area. Here, the mobile object may be a vehicle, but is not limited thereto, and may include various objects detectable through the sensor unit, such as pedestrians and bicycles.

[0047] The street light control device (200-1 to 200-n) may include a sensor unit. The sensor unit may be composed of at least one sensor. In an embodiment, the street light control device (200-1 to 200-n) may detect a moving object and the speed of the moving object through the sensor unit.

[0048] The server (10) is connected to the street light control device (200-1 to 200-n) via wireless communication and can receive data (whether it is flashing, brightness, etc.) regarding the status of each street light (100-1 to 100-n) from the street light control device (200-1 to 200-n) or transmit a signal to control the operation of the street lights (100-1 to 100-n).

[0049] Meanwhile, the configuration of the street light control system illustrated in FIG. 1 is exemplary, and various configurations may be applied according to the embodiments of the present application. For example, the street light control system may be configured to control the operation of the street lights (100-1 to 100-n) through wired or wireless communication between the street light control devices (200-1 to 200-n) or wireless communication connection with an external device, without including a server (10).

[0050]

[0051] FIG. 2 is a block diagram of a street light control device according to an embodiment of the present application.

[0052] Referring to FIG. 2, the street light control device (200) may include a communication unit (210), a sensor unit (220), a memory (230), and a processor (240).

[0053] In an embodiment, the street light control device (200) may be installed on each of the plurality of street lights or on at least some of them to control the plurality of street lights through a first control operation, a second control operation, etc. Additionally, in an embodiment, the street light control device (200) may control the operation of the plurality of street lights by linking with a server connected via wireless communication. Additionally, in an embodiment, some of the components of the street light control device (200) may be installed on different street lights and linked with each other to control the operation of the plurality of street lights. For example, a communication unit (210) and a sensor unit (220) may be installed on each street light, and a memory (230) and a processor (240) may be installed on some of the main control street lights so that the main control street lights control the operation of the plurality of street lights installed in the surrounding area.

[0054] The communication unit (210) can receive or transmit data from inside or outside. The communication unit (210) may include a wired or wireless communication unit. If the communication unit (210) includes a wired communication unit, the communication unit (210) may include one or more components that enable communication through a Local Area Network (LAN), a Wide Area Network (WAN), a Value Added Network (VAN), a mobile radio communication network, a satellite communication network, and combinations thereof. Additionally, if the communication unit (210) includes a wireless communication unit, the communication unit (210) may transmit or receive data or signals wirelessly using cellular communication, wireless LAN (e.g., Wi-Fi), infrared communication, etc. In an embodiment, the communication unit (210) may transmit or receive data or signals to and from an external device (a street light control device installed on another street light) or an external server under the control of a processor (240).

[0055] In an embodiment, the communication unit (210) may transmit a lighting activation signal generated by the processor (240) to at least one other street light, or receive a lighting activation signal from the communication unit (210) of another street light. A plurality of street lights may be lit with a predetermined brightness and lighting duration based on this lighting activation signal.

[0056] In an embodiment, the communication unit (210) may be connected via wireless communication with a mobile body or a terminal of a passenger on board the mobile body. Through this, the street light control device (200) and / or server can calculate the traffic volume of a specific area. To this end, the communication unit (210) may be implemented to enable wireless communication connection with the mobile body based on vehicle-to-everything communication, such as V2X (Vehicle to Everything), for example.

[0057] The sensor unit (220) can detect at least one of ambient light, weather conditions, the approach of a moving object, the speed of a moving object, and the height of a moving object to generate a detection signal and transmit it to a processor (240), an external device, and / or an external server. To this end, the sensor unit (220) may include at least one sensor. For example, the sensor unit (220) may include an illuminance sensor, a weather sensor (humidity sensor, temperature sensor, fine dust sensor, etc.), a speed sensor, an infrared sensor, a motion detection sensor, etc.

[0058] The memory (230) can store programs and / or program instructions for the operation of the processor (240) and can temporarily or permanently store input / output data. The memory (230) may include at least one type of storage medium among flash memory type, hard disk type, multimedia card micro type, card type memory (e.g., SD or XD memory, etc.), RAM, SRAM, ROM, EEPROM, PROM, magnetic memory, magnetic disk, and optical disk.

[0059] Additionally, the memory (230) can store various data, programs (one or more instructions), applications, software, commands, codes, etc. for driving and controlling the street light control device (200).

[0060] The processor (240) can control the overall operation of the street light control device (200). The processor (240) can execute one or more programs or software stored in memory (230). In an embodiment, the processor (240) may refer to a dedicated processor on which the methods according to the embodiments of the present application are performed. For example, the processor (240) may be implemented through a Micro Controller Unit (MCU).

[0061] In an embodiment, the processor (240) can control at least some of the streetlights so that the streetlights perform at least one of a first control operation based on the driving speed of a moving object and a second control operation based on traffic volume.

[0062] The specific methods of the first control operation and the second control operation will be described in detail below with reference to FIGS. 3 to 10.

[0063] The configuration of the street light control device (200) shown in FIG. 2 is exemplary, and various configurations may be applied according to the embodiments of the present application.

[0064]

[0065] FIG. 3 is a flowchart of a method for controlling a plurality of streetlights through a first control operation based on the driving speed of a moving body and a second control operation based on traffic volume according to an embodiment of the present application, and FIG. 4 is a diagram for exemplarily explaining a second control operation according to an embodiment of the present application.

[0066] Referring to FIG. 3, the first control operation (i.e., the first control mode) and the second control operation (i.e., the second control mode) can be selectively activated depending on the traffic volume of a moving object traveling on a road where streetlights are installed.

[0067] In step S310, at least one first street light can detect the number of moving objects traveling within a predetermined driving section based on a wireless communication connection.

[0068] For example, referring to FIG. 4, a communication unit included in a street light control device (411) of at least one first street light (410) may be directly wirelessly connected to a mobile body (20) or wirelessly connected to a terminal of a passenger riding on the mobile body (20), and the street light control device (411) and / or server (10 in FIG. 1) may detect the number of mobile bodies (20) currently driving in a specific driving section (e.g., wireless communication range (A) of at least one first street light (410)) by counting the number of mobile bodies (20) or passenger terminals wirelessly connected to the first street light (410).

[0069] In steps S320 and S330, the street light control device and / or server can determine the current traffic volume of the driving section based on the number of moving objects and compare the current traffic volume with a predetermined reference value.

[0070] If the current traffic volume is below a preset threshold, proceed to step S340, activate the first control mode (or operation), and control of the streetlight based on the speed of the moving object can be performed. The first control operation will be described in detail with reference to FIGS. 5 to 9. At this time, if the second control mode was previously activated, the streetlight control device and / or server will stop the second control mode and activate the first control mode.

[0071] Meanwhile, if the current traffic volume exceeds a preset threshold, it is determined that there is heavy traffic on the road, and the process proceeds to step S350 to activate the second control mode (or operation). At this time, if the first control mode was previously activated, the street light control device and / or server will stop the first control mode and activate the second control mode.

[0072] Referring again to FIG. 4, in the second control mode, a plurality of streetlights (420, i.e., streetlights within the driving section including the first streetlight) installed within a driving section where the traffic volume is determined to be above a certain threshold can be controlled to maintain a state of being lit at a constant brightness. That is, when the traffic volume is high, streetlight control based on the speed of the moving body (20) is meaningless, so in the second control mode, the streetlights (420) in the driving section can be maintained at a constant brightness.

[0073] Steps S310 through S350 may be repeated during a certain time period after sunset (e.g., from 7:00 PM to 6:00 AM) or when the external illuminance is below a predetermined standard value.

[0074]

[0075] The method (300) illustrated in FIG. 3 is exemplary, and various configurations may be applied according to embodiments of the present application.

[0076]

[0077] FIGS. 5 and FIGS. 6 are flowcharts of a first control operation according to an embodiment of the present application.

[0078] In step S510, the first street light can detect at least one moving object approaching within a predetermined detection range and the driving speed of the moving object. Before the first street light detects the moving object, the remaining street lights arranged continuously from the first street light in the driving direction of the moving object may remain lit at a first brightness (i.e., low brightness).

[0079] At this time, detection of the moving body and the driving speed of the moving body can be performed by the sensor unit of the street light control device installed in the first street light.

[0080] In step S520, depending on the speed of the detected moving object, the size of the lighting area in the direction of travel of the moving object and the lighting duration can be determined from the first street light.

[0081] At this time, the size of the illuminated area can be set larger as the driving speed of the moving object increases. For example, when a moving object traveling at 80 km / h is detected, the size of the illuminated area can be set to 4, and when a moving object traveling at 60 km / h is detected, the size of the illuminated area can be set to 3. Here, the size of the illuminated area may refer to the number of streetlights to be illuminated in advance in front of the first streetlight (i.e., in front of the driving direction of the moving object).

[0082] Additionally, the lighting duration may be set to be shorter as the driving speed of the moving object increases. In the embodiment, the lighting duration may be set differently for each of the multiple streetlights within the size of the lighting area.

[0083] In step S530, depending on the size of the determined lighting area, a lighting activation signal may be transmitted to at least one second street light spaced apart from the first street light in the direction of travel. The lighting activation signal may include information regarding at least one of lighting brightness and lighting duration.

[0084] For example, if the size of the lighting area is determined to be 4, a lighting activation signal can be transmitted to 4 second streetlights arranged in succession from the first streetlight.

[0085] In the embodiment, steps S520 and S530 may be performed by a street light control device of the first street light that detects a moving object, or by a server that receives a detection signal of the moving object and driving speed data from the street light control device of the first street light.

[0086] In step S540, the second street light can be turned on by controlling its brightness and the duration of the lighting based on the lighting activation signal. At this time, the second street light can be turned on at a second brightness that is brighter than the first brightness, and the first street light that detects a moving object can also be turned on at the second brightness.

[0087] The second street light can be controlled to turn on again at the first brightness level after the lighting maintenance time has elapsed. Meanwhile, if one of the second street lights detects a moving object within the lighting maintenance time due to the movement of the moving object, the lighting maintenance time is reset, and the second brightness level can be continuously maintained as long as the detection of the moving object is maintained.

[0088] In addition, steps S520 through S540 can be repeated identically based on the second street light that detects a new moving object.

[0089] The method (500) illustrated in FIG. 5 is exemplary, and various configurations may be applied according to embodiments of the present application.

[0090]

[0091] FIG. 6 is a flowchart of a first control operation according to an embodiment of the present application, and FIG. 7 is a drawing for exemplarily explaining a first control operation according to an embodiment of the present application.

[0092] Referring to FIGS. 6 and 7, a control operation is illustrated when a plurality of moving bodies traveling at different speeds are detected from a single street light in the activated state of the first control operation.

[0093] In step S610, the street light control device (711) of the first street light (710) can detect the first moving body (21) and the second moving body (22) of different driving speeds approaching within the detection range and their driving speeds.

[0094] At this time, the driving speed of the first moving body (21) may be greater than the driving speed of the second moving body (22).

[0095] Meanwhile, before the first street light (710) detects the first moving body (21) and the second moving body (22), the second street light (720) can maintain a lighting state of the first brightness.

[0096] In step S620, the size of the lighting area can be determined based on the faster speed between the first driving speed of the first moving body (21) and the second driving speed of the second moving body (22), and the lighting duration can be determined based on the smaller speed.

[0097] For example, if the driving speed of the first moving body (21) is 80 km / h and the corresponding lighting area size is 4, and the driving speed of the second moving body (22) is 20 km / h and the corresponding lighting area size is 1, the lighting area size can be determined as 4 based on the faster speed of 80 km / h. Additionally, the lighting maintenance time can be set based on the slower speed of 40 km / h so that even if the first moving body (21) moves out of the lighting area size, the second street light (720) described below can be implemented to maintain a lighting state of the second brightness as long as the second moving body (22) is within the lighting area size.

[0098] At this time, the lighting duration can be set differently for each second street light (720).

[0099] Subsequently, in steps S630 and S640, according to the size of the determined lighting area, a lighting activation signal is transmitted to at least one second street light (720) that is spaced apart from the first street light (710) in the driving direction, thereby controlling the brightness and the lighting duration to light up the second street light (720). At this time, the second street light (720) may be lit up with a second brightness that is brighter than the first brightness.

[0100] The method (600) illustrated in FIG. 6 is exemplary, and various configurations may be applied according to embodiments of the present application.

[0101]

[0102] FIG. 8 is a flowchart of a first control operation according to an embodiment of the present application, and FIG. 9 and FIG. 10 are drawings for exemplarily explaining a first control operation according to an embodiment of the present application.

[0103] Referring to FIGS. 8 to 10, a process of controlling a street light based on weather data and the speed of a moving object is illustrated when the first control operation is activated.

[0104] In step S810, weather data can be obtained. This weather data can be obtained from an open API of an external server (such as a weather agency server) that provides weather information. For example, weather data can be obtained by the server (10) described above in FIG. 1 and transmitted to the street light control device (911).

[0105] Weather data may include various weather-related information, such as the presence or absence of precipitation or snowfall, amount of precipitation, amount of snowfall, duration of precipitation, duration of snowfall, and whether fog occurs.

[0106] In step S820, the size of the lighting area for each driving speed of the moving body (20) can be set based on weather data.

[0107] In the embodiment, step S820 is performed by the server (10) described above in FIG. 1, and data regarding the set lighting area size can be transmitted to the street light control device (911).

[0108] For example, if the size of the lighting area corresponding to a speed of 40 km / h based on clear weather is 2, when it is determined that there is fog based on weather data, the size of the lighting area corresponding to a speed of 40 km / h can be reset to a larger size, such as 4 or 6.

[0109] Subsequently, in steps S830 to S860, the first street light (910) detects the moving body (20) and the driving speed of the moving body (20), determines the size of the lighting area corresponding to the driving speed and the lighting maintenance time based on the information set in step S820, and generates and transmits a lighting activation signal, thereby enabling control of the second street light (920). Steps S830 to S860 can be performed in the same manner as steps S510 to S540 of the method (500) described above with reference to FIG. 5.

[0110] In the embodiment, step S860 can control the first street light (910) currently detecting a moving object (20) and / or at least one third street light (930) adjacent to the first street light (910) to light up at a lower brightness than that of another second street light (920) within the lighting area, so as to minimize road surface reflection when the amount of precipitation and the duration of precipitation are greater than a predetermined standard amount of precipitation and standard duration. That is, when the amount of precipitation and the duration of precipitation are greater than a certain standard value, the road surface may get wet or puddles may form, creating a risk of safety accidents caused by road surface reflection. To prevent this, the brightness of the first street light (910) currently entering or passing through and / or the third street light (930) adjacent to the first street light (910) can be controlled to be relatively low to minimize glare for the driver.

[0111] That is, for example, as illustrated in FIG. 9, the first street light (910) currently detecting the moving object (20) can be controlled to light up with a relatively low first brightness, while the second street light (920) within the lighting area can be controlled to light up with a second brightness that is brighter than the first brightness.

[0112] Additionally, as illustrated in FIG. 10, in addition to the first street light (910) currently detecting the moving object (20), the brightness of the third street light (930) immediately adjacent to the first street light (910) among the second street lights (920) can be controlled to be lit at a first brightness, and the remaining second street lights (920) can be lit at a second brightness that is brighter than this.

[0113] The method (800) illustrated in FIG. 8 is exemplary, and various configurations may be applied according to embodiments of the present application.

[0114]

[0115] The method according to an embodiment of the present application may be implemented in the form of program instructions that can be executed through various computer means and recorded on a computer-readable medium. The computer-readable medium may include program instructions, data files, data structures, etc., either alone or in combination. The program instructions recorded on the medium may be those specifically designed and configured for the present application or may be those known and available to those skilled in the art of computer software. Examples of computer-readable recording media include magnetic media such as hard disks, floppy disks, and magnetic tapes; optical recording media such as CD-ROMs and DVDs; magneto-optical media such as floptical disks; and hardware devices specifically configured to store and execute program instructions, such as ROM, RAM, and flash memory. Examples of program instructions include machine code, such as that generated by a compiler, as well as high-level language code that can be executed by a computer using an interpreter, etc.

[0116] Additionally, the method according to the disclosed embodiments may be provided by being included in a computer program product. The computer program product may be traded between a seller and a buyer as a product.

[0117] A computer program product may include a software program and a computer-readable storage medium on which the software program is stored. For example, a computer program product may include a product in the form of a software program (e.g., a downloadable app) that is electronically distributed through a manufacturer of an electronic device or an electronic market (e.g., Google Play Store, App Store). For electronic distribution, at least a portion of the software program may be stored on a storage medium or temporarily created. In this case, the storage medium may be a server of the manufacturer, a server of the electronic market, or a storage medium of a relay server that temporarily stores the software program.

[0118] A computer program product may include a storage medium of a server or a storage medium of a client device in a system composed of a server and a client device. Alternatively, if there is a third device (e.g., a smartphone) that communicates with the server or the client device, the computer program product may include a storage medium of the third device. Alternatively, the computer program product may include the S / W program itself that is transmitted from the server to the client device or the third device, or transmitted from the third device to the client device.

[0119] In this case, one of the server, the client device, and the third device may execute the computer program product to perform the method according to the disclosed embodiments. Alternatively, two or more of the server, the client device, and the third device may execute the computer program product to perform the method according to the disclosed embodiments in a distributed manner.

[0120] For example, a server (e.g., a cloud server or an artificial intelligence server, etc.) can execute a computer program product stored on the server to control a client device connected to the server in communication to perform a method according to the disclosed embodiments.

[0121]

[0122] Although the embodiments have been described in detail above, the scope of the present application is not limited thereto, and various modifications and improvements by those skilled in the art using the basic concept of the present application as defined in the following claims also fall within the scope of the present application.

Claims

1. A method for controlling a plurality of streetlights through a first control operation based on the driving speed of a moving object and a second control operation based on traffic volume, The above first control operation is, A step of detecting at least one moving object approaching a first street light within a predetermined detection range and the driving speed of said moving object; A step of determining the size of the lighting area and the duration of lighting in the direction of travel of the moving body from the first street light according to the detected speed of the moving body; A step of transmitting a lighting activation signal to at least one second street light spaced apart from the first street light in the driving direction according to the size of the determined lighting area; and Based on the above-mentioned lighting activation signal, the method includes the step of controlling the brightness of the second street light and the lighting maintenance time to light up the second street light. The above second control operation is, A step in which at least one of the first streetlights detects the number of moving bodies traveling within a predetermined driving section based on a wireless communication connection; A step of determining the current traffic volume of the driving section according to the number of the moving bodies; and A method comprising the step of, when the current traffic volume is greater than or equal to a predetermined threshold, stopping the first control operation for a plurality of third streetlights within the driving section including the first streetlight, and maintaining the third streetlights in a state of being lit at a constant brightness.

2. In Paragraph 1, A method in which the first control operation and the second control operation are activated within a predetermined reference time range or when the ambient illuminance detected by at least one of a plurality of streetlights is below a predetermined reference value.

3. In Paragraph 2, With the above first control operation activated, When the first street light simultaneously detects a first moving body and a second moving body of different driving speeds approaching within the detection range, The step of determining the size of the lighting area and the lighting maintenance time above is, A method comprising the step of determining the size of the lighting area based on the faster of the first driving speed of the first moving body and the second driving speed of the second moving body, and determining the lighting maintenance time based on the smaller speed.

4. In Paragraph 3, The step of determining the size of the lighting area and the lighting maintenance time above is, The method further includes a step of determining whether the difference between the first driving speed of the first moving body and the second driving speed of the second moving body corresponds to a predetermined effective speed range. A method in which the step of determining the size of the lighting area based on the above high speed and determining the lighting maintenance time based on the above low speed is performed when the difference between the first driving speed and the second driving speed is within the above effective speed range.

5. In Paragraph 1, The above first control operation is, Step of acquiring weather data; and A method further comprising the step of setting the size of the lighting area according to the driving speed of the moving body based on the above weather data.

6. In Paragraph 1, The above first control operation is, The method further includes the step of obtaining weather data including the amount of precipitation and the duration of precipitation in the installation area of ​​the plurality of streetlights mentioned above. The step of turning on the second street light is, A method comprising the step of, when the above amount of precipitation and the above duration of precipitation are greater than or equal to a predetermined standard amount of precipitation and standard duration, illuminating the first street light where the entry of a moving object is currently detected at a first brightness that minimizes road surface reflection, and illuminating at least one second street light corresponding to the size of the illuminated area at a second brightness higher than the first brightness.

7. In Paragraph 1, The above first control operation is, The method further includes the step of obtaining weather data including the amount of precipitation and the duration of precipitation in the installation area of ​​the plurality of streetlights mentioned above. The step of turning on the second street light is, A method comprising the step of, when the above amount of precipitation and the above duration of precipitation are greater than or equal to a predetermined standard amount of precipitation and standard duration, illuminating at least one fourth street light adjacent to the first street light among the plurality of second street lights and the first street light where the entry of a moving object is currently detected at a first brightness that minimizes road surface reflection, and illuminating the remaining street lights among the plurality of second street lights, excluding the fourth street light, at a second brightness higher than the first brightness.

8. A computer program stored on a recording medium to execute a method according to any one of paragraphs 1 through 7.

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