KR102679154B1 - The Method and System That Operate An Smart Street Light According to A Detected Vehicle - Google Patents

Abstract

The present invention is a method and system for operating a smart streetlight according to a detected vehicle, receiving pre-stored profile information from a gateway, detecting a running vehicle, broadcasting its ID information, and detecting the vehicle. It relates to a method and system for operating a smart streetlight, which controls the streetlight to operate according to a dimming schedule and controls the smart streetlight to operate according to the user's preset rules when receiving ID information from another smart device.

Description

{The Method and System That Operate An Smart Street Light According to A Detected Vehicle}

The present invention is a method and system for operating a smart streetlight according to a detected vehicle, receiving pre-stored profile information from a gateway, detecting a running vehicle, broadcasting its ID information, and detecting the vehicle. It relates to a method and system for operating a smart streetlight, which controls the streetlight to operate according to a dimming schedule and controls the smart streetlight to operate according to the user's preset rules when receiving ID information from another smart device.

If you look at recent traffic accident cases, you can see that many accidents occur at night time at intersections, crosswalks, child protection areas, and icy areas. This is because the driver's field of vision is narrowed at night, making it difficult to properly recognize other objects while driving. As these accidents repeat, the role of street lights on the road becomes increasingly important to prevent accidents and crimes by securing visibility for drivers and pedestrians. Meanwhile, street lights account for an absolute proportion of public sector electricity use, but there are many causes of waste due to unnecessary power consumption. For example, continuing to operate streetlights on roads with few vehicles or people may be a waste due to unnecessary power consumption. In the end, it can be seen that recent streetlight technology should be developed with a focus on safety and energy conservation.

Recently, smart streetlight technology has been developed that utilizes sensor technology in streetlights installed mainly to secure visibility at night and keep road traffic safe. However, in the conventional smart streetlight technology, the smart streetlight controller is connected to the gateway and It corresponds to a technology that controls the turning on and off of street lights by sending and receiving signals through communication. However, since smart streetlights are usually physically far away from the gateway, the strength of the communication signal must be higher than a certain level for long-distance power transmission, and depending on the increased strength of the communication signal, a large amount of power is required during communication between the smart streetlight and the gateway. It's a situation. In addition, in order to control the lighting of smart streetlights, continuous communication must be repeated between the smart streetlights and gateways located at a long distance, resulting in a large amount of additional communication.

Because these problems occur, there is a need to develop technology that can prevent traffic by reducing the communication volume and power of smart streetlights, improve network stability, and ensure the safety of drivers and pedestrians.

The present invention is a method and system for operating a smart streetlight according to a detected vehicle, receiving pre-stored profile information from a gateway, detecting a running vehicle, broadcasting its ID information, and detecting the vehicle. The purpose is to provide a method and system for operating a smart streetlight that controls the streetlight to operate according to a dimming schedule and, when receiving ID information from another smart device, to operate the smart streetlight according to the user's preset rules. do.

In order to solve the above problems, in one embodiment of the present invention, it has one or more processors and one or more memories, a plurality of street lights, a plurality of smart devices connected to each street light, and a wireless or wired device to the smart devices. A smart streetlight system including a gateway connected to a smart streetlight includes a streetlight and a smart device connected to the streetlight, and each smart device has a profile that receives profile information including a dimming schedule from the connected gateway Receiving stage; A vehicle detection step of detecting whether a vehicle enters the set detection area of each smart device; A detection information propagation step of disseminating detection information including ID information of the vehicle and the speed of the detected vehicle when the vehicle is detected in the vehicle detection step; A first dimming control step of controlling connected street lights to operate according to a received dimming schedule when a vehicle is detected in the vehicle detection step; and a second dimming control step of controlling the streetlight to operate according to the received dimming schedule based on its preset rules when sensing information is received from another smart device. .

In one embodiment of the present invention, the dimming schedule includes an upward dimming schedule that increases the amount of light during a preset first time period; A maintenance dimming schedule that maintains the amount of light during a preset second time period; and a downward dimming schedule that reduces the amount of light during a preset third time period.

In one embodiment of the present invention, while the smart device is operating the streetlight according to the dimming schedule by the second dimming control step, if detection information is additionally received and the second dimming control step is additionally performed, The dimming schedule of the additionally performed second dimming control step takes priority, and the streetlight operates, and while the smart device operates the streetlight according to the dimming schedule by the second dimming control step, the entry of a vehicle is detected. Thus, when the first dimming control step is performed, the dimming schedule of the first dimming control step performed later has priority, so that the streetlight can operate.

In one embodiment of the present invention, each smart device does not perform the detection information propagation step within a preset time after the first dimming control step starts, even if a vehicle is detected in the vehicle detection step. , traffic congestion caused by frequent performance of the detection information propagation step by smart devices can be prevented.

In one embodiment of the present invention, the preset rule in the second dimming control step is set in each smart device, and the preset rule is a detection signal received by performing the detection information propagation step of another smart device. The information may include ID information or information about whether to operate a dimming schedule based on the speed of the detected vehicle.

In one embodiment of the present invention, the amount of power consumed in long-distance communication is reduced by reducing the strength of the communication signal required for long-distance communication by operating the street light through communication between a plurality of smart devices that are relatively short compared to the physical distance between the street light and the gateway. This can have the effect of saving energy.

In one embodiment of the present invention, the streetlights are normally turned on only at the minimum light amount in power saving mode, and when a driving vehicle is detected, the light amount is gradually increased to the maximum light amount, and after maintaining the maximum light amount, the light amount is gradually increased back to the minimum light amount. By lowering it, you can have the effect of saving energy.

In one embodiment of the present invention, a plurality of smart devices communicate with each other to prevent traffic congestion by reducing the amount of continuous communication that occurs between streetlights, gateways, and control platforms for continuous vehicle entry information every time a vehicle is detected. It can have the effect of:

In one embodiment of the present invention, when operating a streetlight by detecting an approaching vehicle or receiving detection information from another smart device, the dimming schedule performed later is given priority, thereby increasing the stability of the driver's field of view of the entering vehicle. It can be performed.

In one embodiment of the present invention, after a smart device detects an entering vehicle and broadcasts to other smart devices, it does not broadcast to other smart devices even if it detects another entering vehicle for a preset time, thereby reducing unnecessary communication volume. By reducing traffic congestion and preventing traffic congestion, network stability can be improved and the response time required to transmit information can be reduced.

Figure 1 schematically shows the communication process of a smart streetlight system according to an embodiment of the present invention.
Figure 2 schematically shows the components of a smart streetlight system according to an embodiment of the present invention.
Figure 3 schematically shows the execution steps of a method of operating a smart streetlight according to a detected vehicle performed in a smart streetlight system according to an embodiment of the present invention.
Figure 4 schematically shows the lighting process of streetlights according to the minimum stopping sight distance according to an embodiment of the present invention.
Figure 5 schematically shows a dimming schedule applied to each streetlight according to an embodiment of the present invention.
Figure 6 schematically shows the execution process of the detection information propagation step according to an embodiment of the present invention.
Figure 7 schematically shows a matrix for whether or not streetlights are turned on based on received ID information according to an embodiment of the present invention.
Figure 8 schematically shows a matrix for whether or not streetlights are turned on based on received ID information and approaching vehicle speed according to another embodiment of the present invention.
Figure 9 exemplarily shows the internal configuration of a computing device according to an embodiment of the present invention.

BRIEF DESCRIPTION OF THE DRAWINGS Various embodiments and/or aspects are now disclosed with reference to the drawings. In the following description, for purposes of explanation, numerous specific details are set forth to facilitate a general understanding of one or more aspects. However, it will also be appreciated by those skilled in the art that this aspect(s) may be practiced without these specific details. The following description and accompanying drawings set forth in detail certain example aspects of one or more aspects. However, these aspects are illustrative and some of the various methods in the principles of the various aspects may be utilized, and the written description is intended to encompass all such aspects and their equivalents.

Additionally, various aspects and features may be presented by a system that may include multiple devices, components and/or modules, etc. It is also understood that various systems may include additional devices, components and/or modules, etc. and/or may not include all of the devices, components, modules, etc. discussed in connection with the drawings. It must be understood and recognized.

As used herein, “embodiments,” “examples,” “aspects,” “examples,” etc. may not be construed to mean that any aspect or design described is better or advantageous over other aspects or designs. . The terms '~part', 'component', 'module', 'system', 'interface', etc. used below generally refer to computer-related entities, such as hardware, hardware, etc. A combination of and software, it can mean software.

Additionally, the terms "comprise" and/or "comprising" mean that the feature and/or element is present, but exclude the presence or addition of one or more other features, elements and/or groups thereof. It should be understood as not doing so.

Additionally, terms including ordinal numbers, such as first, second, etc., may be used to describe various components, but the components are not limited by the terms. The above terms are used only for the purpose of distinguishing one component from another. For example, a first component may be named a second component, and similarly, the second component may also be named a first component without departing from the scope of the present invention. The term and/or includes any of a plurality of related stated items or a combination of a plurality of related stated items.

In addition, in the embodiments of the present invention, unless otherwise defined, all terms used herein, including technical or scientific terms, are generally understood by those skilled in the art to which the present invention pertains. It has the same meaning as Terms defined in commonly used dictionaries should be interpreted as having a meaning consistent with the meaning in the context of the related technology, and unless clearly defined in the embodiments of the present invention, have an ideal or excessively formal meaning. It is not interpreted as

Figure 1 schematically shows the communication process of a smart streetlight system according to an embodiment of the present invention.

As shown in FIG. 1, the smart streetlight system is implemented including a plurality of streetlights (3000.1 to 3000.3, hereinafter referred to as 3000), a plurality of smart devices (1000.1 to 1000.3, hereinafter referred to as 1000), and a gateway (2000). The plurality of smart devices 1000 communicate with each other, and each smart device 1000 receives information from the gateway 2000. Each of the smart devices 1000 operates the street lights 3000 connected thereto based on information received from the gateway 2000.

Specifically, a smart device 1000 is installed at each streetlight 3000, and a plurality of smart devices 1000 existing in a predetermined area based on regional proximity are connected to a gateway 2000 in charge of the area. Additionally, a plurality of streetlights 3000 existing in the area may be connected to a control platform (not shown) through the gateway 2000. A plurality of smart devices 1000 connected to the same gateway 2000 are grouped and managed, and can receive data from the gateway 2000. Additionally, a plurality of smart devices 1000 can be connected to each other through wireless communication to form a small wireless network. The gateway 2000, as an embodiment of the present invention, can be connected to the control platform through LTE or wired Ethernet, and provides a communication path between a plurality of smart devices 1000 and the control platform. The gateway 2000 receives profile information stored in the database of the control platform and transmits the corresponding profile information to each smart device 1000.

Meanwhile, for convenience of explanation, only three smart devices 1000 and three street lights 3000 are shown in FIG. 1, but in reality, in the present invention, the number of smart devices 1000 and street lights 3000 shown in FIG. 1 Without being limited thereto, the smart streetlight system of the present invention may include a plurality of smart devices 1000 and a plurality of streetlights 3000.

Figure 2 schematically shows the components of a smart streetlight system according to an embodiment of the present invention.

As shown in FIG. 2, it has one or more processors and one or more memories, a plurality of street lights 3000, a plurality of smart devices 1000 connected to each street light 3000, and a smart device 1000. As a smart streetlight system including a gateway 2000 connected wirelessly or wired, the smart streetlight includes a streetlight 3000 and a smart device 1000 connected to the streetlight 3000, and each smart device (1000) includes a profile receiving step (S10) of receiving profile information including a dimming schedule from a connected gateway (2000); A vehicle detection step (S20) that detects whether a vehicle enters the set detection area of each smart device 1000; When a vehicle is detected in the vehicle detection step (S20), a detection information propagation step (S30) of disseminating detection information including its ID information and the speed of the detected vehicle; A first dimming control step (S40) for controlling the connected street lights (3000) to operate according to the dimming schedule received when a vehicle is detected in the vehicle detection step (S20); And when receiving detection information from another smart device 1000, a second dimming control step (S50) that controls the connected streetlight 3000 to operate according to the dimming schedule received by the streetlight, based on its preset rules. ); is performed.

Specifically, each of the plurality of smart devices 1000 includes a profile receiver (1100.1 to 1100.2, hereinafter 1100), a vehicle detection unit (1200.1 to 1200.2, hereinafter 1200), a detection information propagation unit (1300.1 to 1300.2, hereinafter 1300), and a dimming control unit. Includes (1400.1 to 1400.2, hereinafter 1400). Figure 2 shows an embodiment of the present invention, in which two smart devices 1000 communicate with a single gateway 2000. The first smart device (1000.1) is installed on the first streetlight (3000.1) and operates the first streetlight (3000.1) through the first dimming control unit (1400.1), and the second smart device (1000.2) operates the second streetlight ( 3000.2), and operates the second street light (3000.2) through the second dimming control unit (1400.2).

The profile receiving unit 1100 performs the profile receiving step (S10) and receives the profile information from the gateway 2000. The profile information is information received by the gateway 2000 from the control platform, including the number of street lights 3000 to be turned on simultaneously according to the preset stopping sight distance of the road, and dimming for the time-dependent operation of the street lights 3000. It includes a schedule, ID information assigned to each of the plurality of street lights 3000, and preset rules regarding the operation of the street lights 3000.

The vehicle detection unit 1200 performs the vehicle detection step (S20). In a random road area, the first vehicle detection unit (1200.1) installed on the first streetlight (3000.1) at the head first detects an approaching vehicle, and according to the driving direction of the approaching vehicle, the second vehicle detection unit (1200.2) The third vehicle detection unit (1200.3) sequentially detects the entering vehicle. In one embodiment of the present invention, the vehicle detection unit 1200 extracts the location information of the entering vehicle, and in another embodiment of the present invention, the vehicle detection unit 1200 extracts the location information of the entering vehicle and the speed of the entering vehicle. Extract information. A detailed description of the one embodiment and the other embodiments will be described later with reference to FIGS. 7 and 8.

The detection information propagation unit 1300 performs the detection information propagation step (S30). When the vehicle detection unit 1200 included in the smart device 1000 detects an approaching vehicle, the detection information propagation unit 1300 transmits the detection information to the vehicle driving direction based on the location of the smart device 1000. The corresponding plurality of smart devices 1000 simultaneously broadcast to each sensing information propagation unit 1300. The detection information includes ID information of the streetlight 3000 on which the smart device 1000 is installed, the location of the streetlight, and the speed of the detected vehicle, and the ID information is used for integrated control and interaction of the plurality of streetlights 3000. This corresponds to the unique identification information of the streetlight 3000 for communication. In other words, the fact that the second smart device (1000.2) has received the ID information of the first streetlight (3000.1) means that the first vehicle detection unit (1200.1) of the first smart device (1000.1) has detected an approaching vehicle. . Meanwhile, in another embodiment of the present invention, the sensing information propagation unit 1300 can transmit sensing information to the gateway 2000, and transmit the sensing information from the gateway 2000 to each smart device 1000. there is.

The dimming control unit 1400 performs the first dimming control step (S40) and the second dimming control step (S50). The first dimming control step (S40) controls the amount of light of the streetlight (3000) so that the smart device (1000), which detects the approaching vehicle, operates according to the dimming schedule received in the profile receiving step (S10). The second dimming control step (S50) is performed when the second detection information propagation unit (1300.2) receives detection information of the first streetlight (3000.1) from the first detection information propagation unit (1300.1). The smart device (1000.2) operates the second street light (3000.2) based on the preset rules and dimming schedule received from the gateway (2000). A detailed description of the preset rules will be described later in FIG. 5.

Meanwhile, in another embodiment of the present invention, in order to collect information on the surrounding environment of the streetlight 3000, the smart device 1000 further includes a humidity sensor, a fine dust sensor, etc., and a plurality of smart devices 1000 If it is determined that there is thick fog or a lot of fine dust has flowed into the area around the plurality of street lights (3000) through communication between the plurality of street lights (3000), by changing the existing lighting method, such as increasing the lighting time of the plurality of street lights (3000). , it can be effective in securing the visibility of drivers and pedestrians and preventing traffic accidents.

Figure 3 schematically shows the execution steps of a method of operating a smart streetlight according to a detected vehicle performed in a smart streetlight system according to an embodiment of the present invention.

As shown in FIG. 3, the smart device 1000 simultaneously broadcasts the detection information to a plurality of smart devices 1000 in response to the vehicle's direction of travel based on the vehicle detection information. That is, based on the position of the first streetlight (3000.1) that first detected the approaching vehicle, the second streetlight (3000.2), the third streetlight (3000.3), and the fourth streetlight (3000.4) located in the direction of travel of the detected vehicle. Through simultaneous communication, the first detection information of the first street light (3000.1) is simultaneously broadcasted. Thereafter, the second device (1000.2) to the fourth device (1000.4) analyzes the first sensing information and controls the lighting of the street lamp (3000) connected to each other based on the analysis result.

Specifically, the first smart device 1000.1 to the fourth smart device 1000.4 each receive corresponding profile information from the gateway 2000 (S10). Preferably, the profile information includes a plurality of ID information that is unique identification information for each streetlight (3000); Dimming schedule; and different preset rules for each streetlight 3000; Includes etc. If the first vehicle detection unit (1200.1) of the first smart device (1000.1) first detects an entering vehicle (S20) in accordance with the driving direction of the vehicle, then the first detection information of the first smart device (1000.1) is propagated The unit 1300.1 broadcasts the first detection information including the first ID information, which is its unique identification information, to the second smart device 1000.2 to the fourth smart device 1000.4 (S30). Afterwards, the first dimming control unit 1400.1 of the first smart device 1000.1, which detects the entering vehicle, operates the first street light 3000.1 according to the dimming schedule (S40). Meanwhile, the second smart device (1000.2) to the fourth smart device (1000.4) receives the first ID information from the first smart device (1000.1) and their respective preset rules received in the profile receiving step (S10). ; is compared and analyzed, and based on the respective analysis results, the streetlight 3000 is operated or deactivated according to the dimming schedule (S50).

As an embodiment of the present invention shown in Figure 3, the preset rule of the second smart device (1000.2) states that when the second smart device (1000.2) receives the first ID information, the second streetlight (3000.2) lights up according to the dimming schedule. ), and the preset rule of the third smart device (1000.3) states that when the third smart device (1000.3) receives the first ID information, the third street light (3000.3) turns on according to the dimming schedule. It contains command information that turns on.

On the other hand, the preset rule of the fourth smart device (1000.4) includes command information not to turn on the fourth street light (3000.4) even when the fourth smart device (1000.4) receives the first ID information. , the fourth street light (3000.4) is not illuminated, unlike the second street light (3000.2) and the third street light (3000.3). Meanwhile, the preset rule is preferably set according to the number of street lights 3000 that must be turned on at the same time based on the minimum stopping sight distance of the road (the minimum distance that the vehicle moves even if the driver applies the brakes), as shown in FIG. 3 The preset rule in one embodiment of the present invention corresponds to the rule in which the number of streetlights 3000 that must be turned on simultaneously is set to three. A more detailed description of the preset rules will be provided later with reference to FIGS. 7 and 8.

Figure 4 schematically shows the lighting process of the streetlight 3000 according to the minimum stopping sight distance according to an embodiment of the present invention.

As shown in FIG. 4, when the vehicle detection unit 1200 detects an approaching vehicle, a plurality of street lights 3000 within a minimum stopping sight distance range corresponding to the traveling direction of the entering vehicle are turned on simultaneously.

Specifically, according to the Ministry of Land, Infrastructure and Transport, roads typically have a stopping sight distance (the distance a vehicle moves even when the driver applies the brakes) of a certain distance or more depending on the design speed of the road. The stopping sight distance corresponds to the distance for the safety of the driver and the object when the driver recognizes the danger of an object in front while driving a vehicle on the road and applies the brakes. A plurality of street lights (3000) within the minimum stopping sight distance range from the driver's vehicle location in the vehicle driving direction operate simultaneously according to a dimming schedule to accurately reduce the risk to objects in front within a distance at which the driver can stop. By enabling awareness, it can be effective in preventing traffic accidents in advance. For example, if the design speed of the road is 100 km/h, the minimum stopping sight distance is 170 m, and when an entering vehicle is detected by the vehicle detection unit 1200, the direction of travel of the entering vehicle from the location of the entering vehicle As a result, a plurality of street lights 3000 within a range of 170 m are turned on simultaneously according to a dimming schedule. Afterwards, when the driver of the entering vehicle recognizes a dangerous object at a distance of 170 m from the entering vehicle, he or she can prevent a traffic accident by stepping on the brakes.

Meanwhile, in another embodiment of the present invention, for the safety of drivers and pedestrians on low-speed designed roads with a short minimum stopping sight distance, street lights (3000.1) turn on simultaneously regardless of the minimum stopping sight distance of the road when the first street light (3000.1) detects an approaching vehicle. ) can be set.

Figure 5 schematically shows a dimming schedule applied to each streetlight 3000 according to an embodiment of the present invention.

As shown in Figure 5, the dimming schedule includes an upward dimming schedule that increases the amount of light during a preset first time period; A maintenance dimming schedule that maintains the amount of light during a preset second time period; and a downward dimming schedule that reduces the amount of light during a preset third time period.

In addition, while the smart device 1000 operates the streetlight 3000 according to the dimming schedule in the second dimming control step (S50), the second dimming control step (S50) is additionally received by additionally receiving detection information. When performed, the dimming schedule of the additionally performed second dimming control step (S50) takes priority, the streetlight 3000 operates, and the smart device 1000 operates by the second dimming control step (S50). While operating the streetlight 3000 according to the dimming schedule, when the entry of a vehicle is detected and the first dimming control step (S40) is performed, the dimming schedule of the first dimming control step (S40) performed later is Given priority, the streetlight 3000 operates.

The smart streetlight, which will be described later for the convenience of understanding the present invention, includes a streetlight 3000 and a smart device 1000 connected to the streetlight 3000, and includes the streetlight 3000 and the smart device ( 1000).

Specifically, the dimming schedule information received by each smart device 1000 from the gateway 2000 is all the same. The dimming schedules of the first to third smart streetlights shown in FIG. 5 all include the same upward dimming schedule, the maintenance dimming schedule, and the downward dimming schedule. The upward dimming time shown in FIG. 5 is the preset first time section, the maximum light intensity maintenance time is the preset second time section, and the downward dimming time is the preset third time section.

According to one embodiment of the present invention, the preset first time section corresponds to 1 to 2 seconds, the preset second time section corresponds to 10 seconds or more, and the preset third time section corresponds to 2 seconds. It is desirable that it corresponds to seconds. Meanwhile, the gateway 2000 does not limit the preset first time section, the preset second time section, and the preset third time section to the above-mentioned times, but also the shape of the road and the spacing of smart street lights installed on the road. Alternatively, a new dimming schedule can be derived by reflecting various external factors such as bad weather, and different dimming schedules can be transmitted to each smart device (1000).

Meanwhile, although not shown in FIG. 5, the smart streetlight normally waits while maintaining the minimum light amount as in power saving mode, and when an approaching vehicle is detected, it turns on according to the upward dimming schedule and the maintenance dimming schedule, and turns on after a preset time has passed. By reducing the amount of light to the minimum and maintaining the amount of light according to the downward dimming schedule, the effect of saving energy normally wasted in conventional street lighting technology can be achieved.

More specifically, the L1 graph shown in FIG. 5 shows the amount of light per time (t) of the first smart streetlight at which the first dimming control step (S40) is performed when an entering vehicle is first detected by the first smart streetlight ( D) is displayed. After the first smart streetlight detects an approaching vehicle, it immediately broadcasts the first detection information to the second smart streetlight and the third smart streetlight. The L2 graph shown in FIG. 5 displays the amount of light per hour of the second smart streetlight in which the second dimming control step (S50) is performed by the first smart streetlight, and the L4 graph shown in FIG. Displays the amount of light per hour of the third smart streetlight for which the second dimming control step (S50) is performed by the smart streetlight. That is, when the first smart streetlight first detects the entering vehicle, the first to third smart streetlights all perform the same operation at the same time, such as the L1 graph, L2 graph, and L4 graph.

After some time has passed after the first smart streetlight detects the entering vehicle, when the second smart streetlight detects the entering vehicle, the second smart streetlight performs a first dimming control step (S40) as shown in the L3 graph. Perform. At this time, the lighting control by the second dimming control step (S50) of the second smart street light and the lighting control by the first dimming control step (S40) collide, as if a certain portion of the L2 graph and the L3 graph overlap. do. In this case, the second smart streetlight gives priority to the dimming schedule (L3 graph) of the first dimming control step (S40) performed later, but does not operate to increase the light amount again from the minimum light amount during the upward dimming time of the L3 graph, and already Priority is given to the dimming schedule corresponding to the L2 graph operating at maximum light intensity. In other words, among conflicting lighting controls, the smart streetlight operates by prioritizing the high light intensity. In this way, the smart streetlight can maintain a stable view of the driver of the entering vehicle by maintaining the lighting without interruption.

Additionally, when the second smart streetlight detects the approaching vehicle, the second smart streetlight broadcasts the second detection information to the third smart streetlight immediately after detection. The L5 graph shown in FIG. 5 displays the amount of light per hour of the third smart streetlight for which the second dimming control step (S50) is performed by the second smart streetlight. At this time, as if there is a certain overlapping area between the L4 graph and the L5 graph, the lighting control of the second dimming control step (S50) performed by the first smart streetlight of the third smart streetlight and the lighting control performed by the second smart streetlight The lighting control of the second dimming control step (S50) conflicts. In this case, the third smart streetlight gives priority to the dimming schedule (L5 graph) of the second dimming control step (S50) performed by the additionally performed second smart streetlight, but as described above, in the upward dimming time of the L5 graph By maintaining the amount of light at the maximum amount of light in the L4 graph, the effect of stably securing the field of view of the driver of the entering vehicle can be achieved.

Figure 6 schematically shows the process of performing the detection information propagation step (S30) according to an embodiment of the present invention.

As shown in FIG. 6, each smart device 1000 is within a preset time after the first dimming control step (S40) starts, even if another entering vehicle is detected in the vehicle detection step (S20). , By not performing the detection information propagation step (S30), traffic congestion caused by frequent performance of the detection information propagation step (S30) of the smart device 1000 is prevented.

Specifically, Figure 6 (a) shows a case where the first smart streetlight detects the first entering vehicle, performs the detection information propagation step (S30), and then turns on according to the dimming schedule. As an example of Figure 6, assuming that there are three smart streetlights that detect an approaching vehicle based on the stopping sight distance and turn on simultaneously, the first to third smart streetlights are turned on according to a dimming schedule, and the third smart streetlight is turned on according to the dimming schedule. 4Smart street lights do not turn on. Meanwhile, within a preset time after the first smart streetlight performs the detection information propagation step (S30), as shown in (b) of FIG. 6, the first smart streetlight detects the second entering vehicle. Even so, since the second smart streetlight and the third smart streetlight are already turned on by the second dimming control step (S50) during the preset time, the first smart streetlight does not necessarily perform the detection information propagation step (S30). I never do that. However, if the first smart streetlight detects the entry of the second entering vehicle after the preset time has passed, the first smart streetlight may perform a detection information propagation step (S30) for detecting the second entering vehicle. .

In addition, during the preset time after the first smart streetlight detects the first entering vehicle, as shown in (c) of FIG. 6, even if the second smart streetlight detects the first entering vehicle, The second smart streetlight can perform the detection information propagation step (S30), and the second to fourth smart streetlights are turned on according to the dimming schedule. However, as in the case shown in (b) of FIG. 6, within a preset time generated for the second smart streetlight after the second smart streetlight performs the detection information propagation step (S30), the second smart streetlight Even if the streetlight detects the entry of the second vehicle, the detection information propagation step (S30) cannot be performed.

In this way, by omitting unnecessary steps between each smart streetlight and reducing the amount of wasted communication, traffic congestion that occurs during smart streetlight operation is prevented, network stability is improved, and the response time required to transmit information is reduced. can be demonstrated.

Figure 7 schematically shows a matrix for whether or not a streetlight 3000 is turned on based on received ID information according to an embodiment of the present invention.

As shown in FIG. 7, the preset rule in the second dimming control step (S50) is set in each smart device 1000, and the preset rule is the detection information of another smart device 1000. It includes information on whether to operate a dimming schedule for ID information included in the detection information received by performing the propagation step (S30).

Specifically, the gateway (2000) transmits profile information to which rules set differently for each smart streetlight are applied to each smart streetlight, and each smart device (1000) transmits the preset information received from the gateway (2000). Based on the rule, the smart streetlight connected to each smart device (1000) is operated.

The matrix shown in FIG. 7 displays preset rules for smart streetlights as an embodiment of the present invention. In the case of the matrix shown in FIG. 7, when the first to seventh smart street lights located in the direction of movement of the detected vehicle are installed on the road, based on the position of the first smart street light that first detected the entry of the vehicle It includes 7 * 7 pixels, and in the matrix, the columns include the first to seventh smart street lights, and the rows of the matrix include ID information received by the smart street lights. In addition, the Nth ID information (1st ID to 7th ID) shown in FIGS. 7 to 8 corresponds to unique identification information of the Nth smart street light, and N corresponds to a natural number.

Meanwhile, the pixel value on the matrix corresponds to each preset rule corresponding to a specific row and a specific column, and preferably determines whether the specific smart streetlight operates when the specific smart streetlight receives specific ID information of another smart streetlight. corresponds to Meanwhile, in one embodiment of the present invention, the number of smart street lights that are turned on simultaneously according to the stopping sight distance of the relevant road is set to three.

For example, in the matrix shown in FIG. 7, the pixel value (○) at the (3, 5) position corresponds to the 3rd row and the 3rd ID information, which is the unique identification information of the 3rd smart street light, corresponds to the 5th column. This corresponds to whether or not the 5th smart streetlight is turned on when the 5th smart streetlight receives it. In the pixel value, the ○ value means that the smart streetlight corresponding to the corresponding row operates according to the dimming schedule, and the Χ value means that the smart streetlight corresponding to the corresponding column does not operate. That is, the pixel value at the (3, 5) position in the matrix shown in FIG. 7 is ○, so when the third smart streetlight detects an approaching vehicle and broadcasts the third ID information to the fifth smart streetlight, the This means that the fifth smart street light operates according to the dimming schedule according to the preset rules included in the profile information.

Meanwhile, the pixel value at the (3, 6) position in the matrix shown in FIG. 7 is Χ, so when the third smart streetlight detects an approaching vehicle and broadcasts the third ID information to the sixth smart streetlight, the device This means that the sixth smart streetlight is not turned on due to the number of smart streetlights that are turned on simultaneously according to the set rule and the stop sight distance set in one embodiment of the present invention. In addition, taking the (6, 2) pixel in the matrix as an example, even if the 6th smart streetlight recognizes an entering vehicle, the 2nd smart streetlight located in the opposite direction to the traveling direction of the entering vehicle is not at all similar to the entering vehicle that has already passed. There is no connection. Therefore, the pixel values shaded in the matrix may be stored as Χ values in the database of the gateway 2000 and the control platform.

Meanwhile, in another embodiment of the present invention, the number of rows and columns of the matrix for the preset rule is not limited to 7, but is set to the total number of smart street lights included in one gateway, or in another embodiment It can be set based on the propagation distance according to the strength of communication power.

Figure 8 schematically shows a matrix for whether or not the streetlight 3000 is turned on based on received ID information and approaching vehicle speed according to another embodiment of the present invention.

As shown in FIG. 8, in another embodiment of the present invention, the detection information broadcast by the smart streetlight 3000 that detects a vehicle may additionally include speed information of an entering vehicle traveling on the road. In another embodiment of the present invention, whether or not each smart streetlight 3000 is turned on can be newly set based on the speed information of the entering vehicle along with the ID information included in one embodiment of the present invention.

Specifically, in another embodiment of the present invention shown in FIG. 8, like the embodiment shown in FIG. 7, the number of smart street lights that are turned on simultaneously according to the stopping sight distance of the relevant road is set to three, and the number of smart street lights that are turned on simultaneously is set to three, and The displayed preset rules are generated based on them. In one embodiment of the present invention shown in Figure 7, as described above, when the first smart streetlight first detects an entering vehicle, the second smart streetlight and the third smart streetlight are activated according to the preset rule received by each smart streetlight. lights up. Meanwhile, when the entering vehicle is detected from the first smart street light, if the speed of the entering vehicle exceeds the preset speed according to the road environment, the entering vehicle may reach the fourth smart street light within a short period of time. It can happen.

Therefore, in another embodiment of the present invention, in addition to the technology for operating smart streetlights by broadcasting ID information, which is the embodiment described above in the description of FIG. 7, the technology for operating smart streetlights based on the speed of the entering vehicle is additionally applied. can do. In another embodiment of the present invention, the vehicle detection unit 1200 measures the speed of an entering vehicle. Figure 8 shows a preset rule in which the speed condition of the entering vehicle is added by dividing the speed range of the entering vehicle into three areas according to the ID information received by the smart streetlight. The matrix shown in FIG. 8 includes 18 * 6 pixels, the columns of the matrix include the first to sixth smart street lights, and the rows of the matrix receive smart street lights corresponding to each column. It includes ID information and speed information of the entering vehicle measured by the vehicle detection unit 1200 of each smart streetlight.

Meanwhile, the pixel values on the matrix correspond to each preset rule corresponding to a specific row and a specific column, and preferably, a specific smart streetlight receives specific ID information of another smart streetlight and changes depending on the speed of the entering vehicle. This corresponds to whether or not the specific smart streetlight is operating. For example, looking at the pixel value (○) at the (2, 3) position in the matrix shown in FIG. 8, the first ID information of the first smart street light corresponding to the second row is divided into the third smart street light corresponding to the third column. When the streetlight receives the signal and the speed of the entering vehicle detected by the first smart streetlight is less than 90km/h and more than 50km/h, it can be seen that the third smart streetlight operates according to the dimming schedule. The meanings of pixel values corresponding to ○ and Χ are the same as described above in FIG. 7.

Meanwhile, the pixel value corresponding to ● shown in FIG. 8 means that the smart streetlight operates according to a dimming schedule based on the ID information received by the smart streetlight and the speed of the entering vehicle. As an example, the pixel value (●) at the (4, 5) position in the matrix shown in FIG. 8 is the 2nd ID information of the 2nd smart streetlight corresponding to the 4th row and the 5th smart streetlight corresponding to the 5th column. This means that when the speed of the entering vehicle detected by the second smart street light is 90 km/h or higher, the fifth smart street light operates according to the dimming schedule.

Just as whether or not smart streetlights are turned on in one embodiment of the present invention shown in FIG. 7 is different from whether or not smart streetlights are turned on in another embodiment of the present invention shown in FIG. 8, the present invention is applicable to various conditions such as the shape of the road environment. It can also have the effect of changing pre-established rules and ensuring the safety of drivers of entering vehicles and/or pedestrians. Meanwhile, the speed condition of the entering vehicle shown in Figure 8 is an example of several embodiments of the present invention, and is not limited to the range shown, and the range of the speed of the entering vehicle may vary depending on the road environment. there is.

FIG. 9 exemplarily shows the internal configuration of a computing device 11000 according to an embodiment of the present invention.

The smart streetlight system mentioned in the description of FIG. 1 may include components of the computing device 11000 shown in FIG. 9, which will be described later.

As shown in FIG. 9, the computing device 11000 includes at least one processor 11100, a memory 11200, a peripheral interface 11300, and an input/output subsystem ( It may include at least an I/O subsystem (11400), a power circuit (11500), and a communication circuit (11600).

Specifically, the memory 11200 may be, for example, high-speed random access memory, magnetic disk, SRAM, DRAM, ROM, flash memory, or non-volatile memory. may include. The memory 11200 may include software modules, instruction sets, or other various data necessary for the operation of the computing device 11000.

At this time, access to the memory 11200 from other components such as the processor 11100 or the peripheral device interface 11300 may be controlled by the processor 11100. The processor 11100 may be composed of a single processor or a plurality of processors, and may include GPU and TPU type processors to improve calculation processing speed.

The peripheral device interface 11300 may couple input and/or output peripheral devices of the computing device 11000 to the processor 11100 and the memory 11200. The processor 11100 may execute a software module or instruction set stored in the memory 11200 to perform various functions for the computing device 11000 and process data.

The input/output subsystem 11400 can couple various input/output peripheral devices to the peripheral device interface 11300. For example, the input/output subsystem 11400 may include a controller for coupling peripheral devices such as a monitor, keyboard, mouse, printer, or, if necessary, a touch screen or sensor to the peripheral device interface 11300. there is. According to another aspect, the input/output peripheral devices may be coupled to the peripheral interface 11300 without going through the input/output subsystem 11400.

The power circuit 11500 may supply power to all or part of the components of the terminal. For example, the power circuit 11500 may include a power management system, one or more power sources such as batteries or alternating current (AC), a charging system, a power failure detection circuit, a power converter or inverter, a power status indicator, or It may include any other components for power generation, management, and distribution.

The communication circuit 11600 may enable communication with another computing device using at least one external port. Alternatively, as described above, if necessary, the communication circuit 11600 may include an RF circuit to transmit and receive RF signals, also known as electromagnetic signals, to enable communication with other computing devices.

This embodiment of FIG. 9 is only an example of the computing device 11000, and the computing device 11000 may omit some components shown in FIG. 9 or further include additional components not shown in FIG. 9. , may have a configuration or arrangement that combines two or more components. For example, a computing device for a communication terminal in a mobile environment may further include a touch screen or a sensor in addition to the components shown in FIG. 9, and the communication circuit 1160 may include various communication methods (Wi-Fi, Circuits for RF communication (3G, LTE, 5G, 6G, Bluetooth, NFC, Zigbee, etc.) may be included. Components that can be included in the computing device 11000 may be implemented as hardware, software, or a combination of both hardware and software, including an integrated circuit specialized for one or more signal processing or applications.

Methods according to embodiments of the present invention may be implemented in the form of program instructions that can be executed through various computing devices and recorded on a computer-readable medium. In particular, the program according to this embodiment may be composed of a PC-based program or a mobile terminal-specific application. The application to which the present invention is applied can be installed on a user terminal through a file provided by a file distribution system. As an example, the file distribution system may include a file transmission unit (not shown) that transmits the file according to a request from the user terminal.

The device described above may be implemented with hardware components, software components, and/or a combination of hardware components and software components. For example, devices and components described in embodiments may include, for example, a processor, a controller, an arithmetic logic unit (ALU), a digital signal processor, a microcomputer, a field programmable gate array (FPGA), etc. , may be implemented using one or more general-purpose or special-purpose computers, such as a programmable logic unit (PLU), microprocessor, or any other device capable of executing and responding to instructions. The processing device may execute an operating system (OS) and one or more software applications running on the operating system. Additionally, a processing device may access, store, manipulate, process, and generate data in response to the execution of software. For ease of understanding, a single processing device may be described as being used; however, those skilled in the art will understand that a processing device includes multiple processing elements and/or multiple types of processing elements. It can be seen that it may include. For example, a processing device may include multiple processors or one processor and one controller. Additionally, other processing configurations, such as parallel processors, are possible.

Software may include a computer program, code, instructions, or a combination of one or more of these, which may configure a processing unit to operate as desired, or may be processed independently or collectively. You can command the device. Software and/or data may be used by any type of machine, component, physical device, virtual equipment, computer storage medium or device to be interpreted by or to provide instructions or data to a processing device. , or may be permanently or temporarily embodied in a transmitted signal wave. Software may be stored or executed in a standardized manner on a networked computing device. 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 on a computer-readable medium. The computer-readable medium may include program instructions, data files, data structures, etc., singly or in combination. Program instructions recorded on the medium may be specially designed and configured for the embodiment or may be 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 media such as CD-ROMs and DVDs, and magnetic media such as floptical disks. -Includes optical media (magneto-optical media) and hardware devices specifically configured to store and execute program instructions, such as ROM, RAM, flash memory, etc. Examples of program instructions include machine language code, such as that produced by a compiler, as well as high-level language code that can be executed by a computer using an interpreter, etc. The hardware devices described above may be configured to operate as one or more software modules to perform the operations of the embodiments, and vice versa.

In one embodiment of the present invention, the amount of power consumed in long-distance communication is reduced by reducing the strength of the communication signal required for long-distance communication by operating the street light through communication between a plurality of smart devices that are relatively short compared to the physical distance between the street light and the gateway. This can have the effect of saving energy.

In one embodiment of the present invention, the streetlights are normally turned on only at the minimum light amount in power saving mode, and when a driving vehicle is detected, the light amount is gradually increased to the maximum light amount, and after maintaining the maximum light amount, the light amount is gradually increased back to the minimum light amount. By lowering it, you can have the effect of saving energy.

In one embodiment of the present invention, a plurality of smart devices communicate with each other to prevent traffic congestion by reducing the amount of continuous communication that occurs between streetlights, gateways, and control platforms for continuous vehicle entry information every time a vehicle is detected. It can have the effect of:

In one embodiment of the present invention, when operating a streetlight by detecting an entering vehicle or receiving detection information from another smart device, the dimming schedule performed later is given priority, thereby increasing the stability of the driver's field of view of the entering vehicle. It can be performed.

In one embodiment of the present invention, after a smart device detects an entering vehicle and broadcasts to other smart devices, it does not broadcast to other smart devices even if it detects another entering vehicle for a preset time, thereby reducing unnecessary communication volume. By reducing traffic congestion and preventing traffic congestion, network stability can be improved and the response time required to transmit information can be reduced.

As described above, although the embodiments have been described with limited examples and drawings, various modifications and variations can be made by those skilled in the art from the above description. For example, the described techniques are performed in a different order than the described method, and/or components of the described system, structure, device, circuit, etc. are combined or combined in a different form than the described method, or other components are used. Alternatively, appropriate results may be achieved even if substituted or substituted by an equivalent. Therefore, other implementations, other embodiments, and equivalents of the claims also fall within the scope of the claims described below.

Claims (5)

A smart streetlight system having one or more processors and one or more memories, and including a plurality of streetlights, a plurality of smart devices connected to each streetlight, and a gateway wirelessly or wiredly connected to the smart devices,
Smart streetlights include streetlights and smart devices connected to the streetlights,
Each smart device,
A profile receiving step of receiving profile information including a dimming schedule from a connected gateway;
A vehicle detection step of detecting whether a vehicle enters the detection area set for each smart device;
A detection information propagation step of disseminating detection information including ID information of the vehicle and the speed of the detected vehicle when the vehicle is detected in the vehicle detection step;
A first dimming control step of controlling connected street lights to operate according to a received dimming schedule when a vehicle is detected in the vehicle detection step; and
When receiving detection information from another smart device, a second dimming control step of controlling the streetlight to operate according to the received dimming schedule based on its preset rules,
The dimming schedule is,
An upward dimming schedule that increases the amount of light during a preset first time period;
A maintenance dimming schedule that maintains the amount of light during a preset second time period; and
Includes a downward dimming schedule that reduces the amount of light during a preset third time period,
The preset first to third time sections are derived based on external factors including one or more of the shape of the road, the spacing of smart street lights installed on the road, and weather conditions,
The preset rule is set according to the number of street lights that must be turned on simultaneously based on the minimum stopping sight distance of the road,
The number of street lights that must be turned on at the same time is set according to the area into which the detected speed range of the vehicle is divided,
While the smart device is operating the streetlight according to the dimming schedule by the second dimming control step, if the second dimming control step is additionally performed by additionally receiving detection information, the second dimming control step is additionally performed. The dimming schedule takes priority, and the streetlight operates.
While the smart device is operating the streetlight according to the dimming schedule by the second dimming control step, if the entry of a vehicle is detected and the first dimming control step is performed, the first dimming control step is performed later. A smart streetlight system in which the dimming schedule takes priority and the streetlight operates.
delete delete In claim 1,
Each smart device,
After the first dimming control step starts, within a preset time, even if a vehicle is detected in the vehicle detection step, the detection information propagation step is not performed, thereby causing traffic due to frequent performance of the detection information propagation step of the smart device. A smart street lighting system that prevents runaway.
In claim 1,
The preset rules in the second dimming control step are set in each smart device,
The preset rules are:
A smart streetlight system that includes ID information included in the detection information received by performing the detection information propagation step of another smart device or information on whether to operate a dimming schedule for the speed of the detected vehicle.