KR20230019719A - Multifunctional lighting control system - Google Patents

Abstract

An objective of the present invention is to provide a multifunctional lighting control system which can provide brightness in a prescribed space of a rest place, prevent accidents, and provide safe directions. According to a proper embodiment of the present invention, the multifunctional lighting control system comprises: a transceiving part receiving space sensing information for a plurality of spaces in a prescribed place; a space occupying information generation part generating space occupying information for the plurality of spaces in accordance with the space sensing information and preset sampling time; a submap generation part using the space occupying information and map information for the prescribed place to generate a plurality of submaps consisting of a plurality of grids; a heatmap generation part synthesizing at least a portion of the plurality of submaps in accordance with a provided service to generate a synthesis map, designating at least two reference points on the synthesis map, and forming a moving path on the synthesis map based on the reference points to generate a heatmap; and a control part using the heatmap to control a plurality of lights distributed in the prescribed place.

Description

Multifunctional lighting control system {MULTIFUNCTIONAL LIGHTING CONTROL SYSTEM}

The present invention relates to a multifunctional lighting control system.

BACKGROUND OF THE INVENTION In recent years, the number of people who visit resting places such as parks is increasing according to the increase in leisure time. Various facilities are located in these places, and people generally check the location of the facility through a simple map that informs the location of the facility at the entrance or their mobile phone application.

On the other hand, recently, people are using various facilities located in resting places such as parks not only for breakfast and lunch but also after the evening. The frequency of accidents, such as fights between people or crimes, is increasing in spaces where people are rare in these resting places.

In this way, as the use time and accidents of people increase in the recent resting place, the service that guides the movement direction (road) with lighting naturally according to the purpose of the service at the resting place, energy saving service, and resting place through lighting It is required to provide brightness in a predetermined space, prevent accidents, and guide safe roads.

Republic of Korea Patent No. 10-2093290

Therefore, the present invention has been devised in view of the above circumstances, and an object of the present invention is to provide a multifunctional lighting control system capable of providing brightness in a predetermined space of a resting place, preventing accidents, and providing safe road guidance.

Multifunctional lighting control system according to a preferred embodiment of the present invention for achieving the above object, a transceiver for receiving space sensing information for each of a plurality of spaces in a predetermined place; a space occupancy information generator configured to generate space occupancy information for each of the plurality of spaces according to the space sensing information and a predetermined sampling time; a submap generating unit generating a plurality of submaps composed of a plurality of grids using the space occupancy information and the map information on the predetermined place; A composite map is generated by synthesizing at least some of the plurality of submaps according to a service provided, at least two or more reference points are designated in the composite map, and a movement path is formed in the composite map based on the reference points to hit a hit. a heat map generating unit generating a map; and a control unit controlling a plurality of lighting lamps distributed in the predetermined place by using the heat map.

The space sensing information may be acquired from a plurality of sensor devices distributed in the predetermined place.

The plurality of sensor devices may include a microwave sensor, an ultrasonic sensor, and an infrared sensor.

The space occupation information generation unit may calculate whether the space occupation information is continuity from the space sensing information using a moving average value.

The plurality of submaps include an instantaneous occupancy map including a space occupied by a user for a certain period of time, a space occupancy map prepared by accumulating the instantaneous occupancy map, an obstacle map including a space where a user cannot move, and a facility location. It may include a facility location map including a space where an accident history exists, an accident history map including a space where an accident history exists, and a lighting location map including a space where a lighting lamp is located.

The submap generator may generate the instantaneous occupancy map, the space occupancy map, the obstacle map, the facility location map, and the lighting location map when the services are a lighting power saving service and a facility guidance service.

The heat map generator generates a first composite map by synthesizing the space occupancy map, the facility location map, and the lighting location map, sets the at least two or more reference points in the first composite map, and sets the at least two reference points to the first composite map. A minimum path between two or more reference points can be set.

The heat map generating unit may generate a secondary composite map by forming a movement path in the obstacle map based on the minimum path, and generate the heat map by synthesizing the secondary composite map and the lighting location map. .

The submap generator may generate the instantaneous occupancy map, the space occupancy map, the obstacle map, the accident history map, and the lamp location map when the service is an accident prevention service.

The heat map generator generates a first composite map by synthesizing the space occupancy map and the lighting location map, generates a movement restriction map by synthesizing the obstacle map and the accident history map, and generates the first composite map. At least two or more reference points may be set, and a minimum path between the at least two or more reference points may be set.

The heat map generator may form a movement path in the movement restriction map based on the minimum path to generate a secondary composite map, and synthesize the secondary composite map and the lighting location map to generate the heat map. there is.

The submap generator may generate the instantaneous occupancy map, the space occupancy map, the obstacle map, and the lamp location map when the service is a safe walking service.

The heat map generator generates a first composite map by synthesizing the space occupancy map and the lighting location map, sets the at least two or more reference points in the first composite map, and sets a space between the at least two reference points. You can set the minimum path for

The heat map generating unit may generate a secondary composite map by forming a movement path in the obstacle map based on the minimum path, and generate the heat map by synthesizing the secondary composite map and the lighting location map. .

The control unit sets a lighting time period in which lights located in the space-occupied grid are turned on when a space-occupied grid occurs at least twice or more in the heat map during a predetermined time period, and according to a section of the lighting time period Dimming control or on/off control may be performed on the lighting.

According to the multifunctional lighting control system and method according to a preferred embodiment of the present invention, lighting power saving, facility guidance, accident prevention, and safe route guidance are possible through the provision of brightness in a predetermined space of the resting place, thereby enabling people's safety at the resting place. It has the effect of preventing the occurrence of negative events caused by increased use time.

1 is a block diagram of a multifunctional lighting control system according to a preferred embodiment of the present invention.
Figure 2 is a flow chart of a multi-function lighting control method according to a preferred embodiment of the present invention.
3 is a diagram for explaining a submap and a heatmap according to a preferred embodiment of the present invention.
4 is a diagram for explaining a method for generating a movement path in a heat map according to a preferred embodiment of the present invention.
5 is a diagram showing a heat map generated by synthesizing an obstacle map and a light mask sensor map.
6 is a diagram showing a heat map including positions of control target lights.
Figure 7 is a detailed flow chart of the heat map generation step of Figure 2 for power saving and facility guidance service provision in the multi-function lighting control method according to a preferred embodiment of the present invention.
8 is a detailed flow chart of a heat map generating step of FIG. 2 for providing an accident prevention service in a multifunctional lighting control method according to a preferred embodiment of the present invention.
9 is a detailed flowchart of the heat map generation step of FIG. 2 for providing safe walking service in the multi-function lighting control method according to a preferred embodiment of the present invention.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. First, in adding reference numerals to components of each drawing, it should be noted that the same components have the same numerals as much as possible even if they are displayed on different drawings. In addition, although preferred embodiments of the present invention will be described below, the technical idea of the present invention is not limited or limited thereto and can be modified and implemented in various ways by those skilled in the art.

1 is a block diagram of a multifunctional lighting control system according to a preferred embodiment of the present invention.

Referring to FIG. 1, the multifunctional lighting control system 100 according to a preferred embodiment of the present invention includes space occupancy (instantaneous space occupancy, cumulative space occupancy), space occupancy distribution information, accident information, landmark location information, And it is characterized by providing various services such as lighting power saving, facility guidance, accident prevention, and safe road guidance by appropriately controlling a plurality of lights distributed in a specific place (eg, park) using facility location information, etc. do.

In addition, the multifunctional lighting control system 100 controls a plurality of lights using the user's entry point in a specific place, the user's target position, and operation setting information (base lighting, location setting, etc.) to prevent the use of unnecessary lights. It is possible to provide a lighting operation strategy service that reduces the power consumption of a plurality of lighting lamps.

In addition, the multifunctional lighting control system 100 may provide an accident prevention service by controlling the light irradiation of lighting in consideration of the cumulative space occupancy or accident information in a specific place.

In addition, the multifunctional lighting control system 100 controls the lighting using space occupancy and space occupation distribution information so that the route guidance path is distributed through the lighting of a plurality of lighting lights in a specific place, such as distance between users. Safe walking service can be provided.

In addition, the multifunctional lighting control system 100 may provide a route guidance service for guiding a user movement path by controlling lighting of a plurality of lights so as to induce a user to move to a main facility in a specific place.

The multifunctional lighting control system 100 may include a transceiver 110, a space occupancy information generator 120, a submap generator 130, a heat map generator 140, and a control unit 150. there is.

The transceiver 110 may receive spatial sensing information from the sensor device 200 . Here, the sensor device 200 may be properly distributed and installed in a plurality of spaces of a specific place (eg, park). The sensor device 200 may generate space sensing information by sensing a user's occupancy level for each of a plurality of spaces for a predetermined period of time. The sensor device 200 may determine the occupancy degree of users based on the number of users located in each of a plurality of spaces. In one embodiment, the sensor device 200 may include a microwave sensor, an ultrasonic sensor, and an infrared sensor.

The space occupancy information generation unit 120 may generate space occupancy information in consideration of the number of users located in a predetermined space of a specific place included in the space sensing information. The space occupancy information generation unit 120 may generate space occupancy information for a predetermined space in a specific place according to a preset sampling time.

The space occupation information generation unit 120 may check whether the space occupation information obtained according to the sampling time is continuity. The space occupation information generating unit 120 may calculate the continuity of the space occupation information using the moving average value. In one embodiment, a weight may be determined such that the sum of each of the moving average values N=5 or N=10 is 1.

The submap generator 130 may receive space occupation information from the space occupation information generator 120 . The submap generator 130 may generate various submaps using space occupancy information and previously prepared map information. Map information may be related to a specific place. Types of submaps may include instantaneous occupancy maps, space occupancy maps, obstacle maps, facility location maps, accident history maps, and lighting location maps. Submap types will be described later in detail with reference to FIGS. 3 to 6 .

In one embodiment, the submap generator 130 may generate an instantaneous occupancy map, a space occupancy map, an obstacle map, a facility location map, and a lighting location map when providing a lighting power saving service and a facility guidance service. there is.

In one embodiment, the submap generation unit 130 may generate an instantaneous occupancy map, a space occupancy map, an obstacle map, an accident history map, and a lighting location map when an accident prevention service is provided.

In an embodiment, the submap generation unit 130 may generate an instantaneous occupancy map, a space occupancy map, an obstacle map, and a light location map when providing a safe walking service.

The heat map generating unit 140 may generate a first composite map by synthesizing at least some of a plurality of submaps according to a service to be provided.

In one embodiment, the heat map generation unit 140 may appropriately synthesize an instantaneous occupancy map, a space occupancy map, an obstacle map, a facility location map, and a lighting location map when providing a lighting power saving service and a facility guidance service. can

In one embodiment, the heat map generation unit 140 may appropriately synthesize an instantaneous occupancy map, a space occupancy map, an obstacle map, an accident history map, and a lighting location map when providing an accident prevention service.

In one embodiment, the heat map generation unit 140 may appropriately synthesize an instantaneous occupancy map, a space occupancy map, an obstacle map, and a lighting location map when providing a safe walking service.

The heat map generator 140 may designate a plurality of reference points in the first composite map. In one embodiment, there may be n reference points. n is an integer greater than or equal to 2;

The heat map generator 140 may set a minimum path between a plurality of reference points of the first composite map using a pre-prepared algorithm. The heat map generator 140 may generate a minimum path between reference points by repeating a predetermined number of times. The predetermined number of times may be n*(n-1)/2). Thereafter, the heat map generating unit 140 may generate a movement path lattice indicating a possible movement path in the primary composite map using a previously prepared path generation algorithm and a minimum path. Here, the pre-prepared algorithm may be a Bellman-Ford algorithm, but is not limited thereto. The heat map generator 140 may set a threshold value of the space occupancy value at the reference point. The heat map generator 140 may set a user's movement path according to the heat map generation period when the space occupancy of the reference point exceeds a threshold value.

Through this, the heat map generator 140 may generate a heat map in which a movement path is formed. The heat map generator 140 may transmit the generated heat map to the controller 150 .

The controller 150 may receive the heat map from the heat map generator 140 . The controller 150 may generate a control signal for controlling a plurality of lighting lamps distributed in a predetermined space in a specific place by using the heat map.

A plurality of lights may be turned on according to a control signal from the controller 150 . The control unit 150 may set gains for weights to determine turn-on times of lights for each of a plurality of spaces. An accumulating method and a maximum limit value may be applied to determining the lighting time.

At this time, a movement path through illumination of a lighting lamp may be implemented in a specific place. People can easily move toward a desired destination through a moving path through illumination of a lighting lamp.

The control unit 150 may control the lighting to be turned on or off by using a heat map obtained by synthesizing the lighting location map and the instantaneous occupancy map. The controller 150 may preferentially control the lighting lamps located in the space-occupied lattice of the heat map.

The control unit 150 checks whether the space is occupied by the sensor at regular intervals, and if the space occupancy state occurs twice or more, the lighting time period (on time interval) in which the lights located in the space are turned on is set. can be set

The control unit 150 maintains the lighting in an ON state for the corresponding on-time period, controls dimming in the last section of the on-time interval, or turns it off at the end of the on-time period. ) can be controlled.

The control unit 150 may perform ON control by setting an on-time interval for lights existing in a movement path prepared through the process of creating a movement path according to various services described above.

The instantaneous occupancy map is continuously generated according to the sampling period of the sensor device 200, and the movement path of the heat map may be generated periodically. Accordingly, an on-time cycle of a control signal for controlling a lighting lamp may be repeatedly generated.

Meanwhile, there may be two on-time control methods.

First, when a new on-time cycle is generated, there is a method of overwriting a new cycle on an existing cycle.

Second, when a new on time period is generated, there is a method of adding a new period to an existing period. In the case of the method of adding the on-time period, since there is a saturation effect according to the repetition period, it is necessary to set a limiting area for the maximum value.

Figure 2 is a flow chart of a multi-function lighting control method according to a preferred embodiment of the present invention.

Referring to FIG. 2 , the multifunctional lighting control method according to a preferred embodiment of the present invention includes a receiving step (S310), a space occupation information generating step (S320), a submap generating step (S330), a submap synthesizing step (S340), a heat A map generation step (S350) and a lighting control step (S360) are included.

In the receiving step ( S310 ), the transceiver 110 receives space sensing information from the sensor device 200 . Here, the sensor device 200 may be distributed and installed in a plurality of spaces within a specific place. The sensor device 200 may generate space sensing information by sensing the number of users located in an individual space at predetermined time intervals. The sensor device 200 may transmit space sensing information to the transceiver 110 .

In step S320 of generating space occupation information, the space occupation information generator 120 may receive space sensing information from the transceiver 110 and generate space occupation information using the received space sensing information. The space occupancy information generation unit 120 may check the degree of occupancy of a space based on the number of users occupying a predetermined space at each predetermined sampling time interval. In addition, the space occupation information generation unit 120 may check whether space occupation is continuity at each sampling time interval. The space occupation information generating unit 120 may calculate space occupation continuity using a moving average value. The space occupation information generation unit 120 may generate space occupation information based on the calculated space occupation continuity. The space occupation information generator 120 may transmit the generated space occupation information to the submap generator 130 .

In the submap generation step (S330), the submap generation unit 130 receives the space occupancy information from the space occupancy information generation unit 120, and generates a plurality of submaps using the space occupancy information and the previously prepared map information. can Map information may be related to a specific place. The plurality of submaps may have different configurations depending on services to be provided.

In one embodiment, the submap generator 130 may generate an instantaneous occupancy map, a space occupancy map, an obstacle map, a facility location map, and a lighting location map when providing a lighting power saving service and a facility guidance service. there is.

In one embodiment, the submap generation unit 130 may generate an instantaneous occupancy map, a space occupancy map, an obstacle map, an accident history map, and a lighting location map when an accident prevention service is provided.

In an embodiment, the submap generation unit 130 may generate an instantaneous occupancy map, a space occupancy map, an obstacle map, and a light location map when providing a safe walking service.

In the submap synthesizing step ( S340 ), the heat map generating unit 140 may generate a synthesized map by appropriately synthesizing a plurality of submaps. In one embodiment, the heat map generation unit 140 may appropriately synthesize an instantaneous occupancy map, a space occupancy map, an obstacle map, a facility location map, and a lighting location map when providing a lighting power saving service and a facility guidance service. can

In one embodiment, the heat map generation unit 140 may appropriately synthesize an instantaneous occupancy map, a space occupancy map, an obstacle map, an accident history map, and a lighting location map when providing an accident prevention service.

In one embodiment, the heat map generation unit 140 may appropriately synthesize an instantaneous occupancy map, a space occupancy map, an obstacle map, and a lighting location map when providing a safe walking service.

In the heat map generating step ( S350 ), the heat map generating unit 140 may generate a heat map by forming a movement path lattice in the synthetic map. In one embodiment, the heat map generation unit 140 may set a reference point based on the composite map. There may be n number of reference points. n is an integer greater than or equal to 2;

The heat map generator 140 may generate a minimum path between reference points by repeating a predetermined number of times. The predetermined number of times may be n*(n-1)/2. Thereafter, the heat map generation unit 140 may generate a movement path lattice indicating a possible movement path in the synthetic map using a previously prepared path generation algorithm and a minimum path. Through this, the heat map generator 140 may generate a heat map in which a movement path is formed. The heat map generator 140 may transmit the heat map to the controller 150 .

In the lighting control step (S360), the control unit 150 receives the heat map on which the movement path is formed from the heat map generator 140, and generates a control signal for controlling the lighting lamp using the received heat map. . The controller 150 may transmit a control signal to the transceiver 110 . The transceiver 110 may transmit a control signal to the lighting lamps 300 distributed in a plurality of spaces within a specific place. Through this, the plurality of lighting lamps 300 are turned on according to a control signal, and a movement path is implemented in a specific place through lighting, thereby providing brightness in a predetermined space and guiding users to various facility locations.

3 is a diagram for explaining a submap and a heatmap according to a preferred embodiment of the present invention.

Figure 3 (a) shows an obstacle map (obstacle map). The obstacle map may be a grid-type map in which a movable space (AS) to which the user can move and an obstacle space (OS) to which the user cannot move are displayed. One grid can be displayed as 1x1. This can be equally applied to all maps. Basically, an obstacle map can be created regardless of the type of service. An obstacle map may be created based on map information related to a specific place.

FIG. 3(b) shows an inverse obstacle masked map obtained by inverting the obstacle map of FIG. 3(a). The inverted obstacle map of FIG. 3(b) may be used to generate a current sensor mask map to be described later in FIG. 3(d).

3(c) shows a current sensor map created through random variables input to the sensor. In the current sensor map, the number 1 may indicate a space where an motion sensor is located, and the number 0 may indicate a space where an inactive sensor is located or no sensor is located. In reality, FIG. 3(b) and FIG. 3(c) may not be expressed.

FIG. 3(d) shows a current sensor masked map created by ANDing the maps of FIGS. 3(c) and 3(d). The current sensor mask map may indicate a space occupied by the user by the sensor device 200 detecting the user for a certain period of time. The current sensor mask map can be defined as an instantaneous occupancy map. In one embodiment, the sensor device 200 may be mounted on the lighting lamp 300, or the sensor device 200 may be installed in a space constituting a separate movement path. The instantaneous occupancy map may be used to generate a spatial occupancy map to be described later.

(e) of FIG. 3 shows a sum of masked sensor map. The mask sensor composite map can be defined as a space occupancy map. The space occupancy map may be created by accumulating the instantaneous occupancy map of FIG. 3(d) over time. The space occupancy map in (e) of FIG. 3 is in a state in which loopcount is generated once with 0, and is in the same state as in (d) in FIG. 3, but is not limited thereto.

FIG. 3(f) shows a lighting map indicating locations of a plurality of lighting lamps installed in a predetermined space in a specific place. In particular, the light location map may indicate a space in which light distribution of the light has an influence.

FIG. 3(g) shows a lighting masked sensor map created by ANDing the maps of FIGS. 3(d) and 3(f). That is, the light mask sensor map may indicate a position of a light located in a space occupied by a user. The illumination mask sensor map of FIG. 3(g) may be used to generate a movement path to be described later.

4 is a diagram for explaining a method for generating a movement path in a heat map according to a preferred embodiment of the present invention.

Referring to FIG. 4 , it can be seen that approximately 15 movement paths are created in the light mask sensor map. In one embodiment, when 6 reference points that can be a starting point and an ending point are designated based on the light mask sensor map, and a minimum path is set between each reference point, approximately 15 moving paths can be created. This can be calculated in the form of 6C2 (6*5/2=15).

5 is a diagram showing a heat map generated by synthesizing an obstacle map and a light mask sensor map.

Referring to FIG. 5 , a path planning result according to synthesis of the obstacle map of FIG. 3 (a) and the illumination mask sensor map in which the moving path PS of FIG. 4 is formed can be checked. This can be defined as a heat map. The movement path PS of the heat map may be composed of a plurality of grids.

6 is a diagram showing a heat map including positions of control target lights.

Referring to FIG. 6 , it is possible to check a heat map including the position of the control target light LS prepared by synthesizing the light location map of FIG. 3(f) and the heat map of FIG. 5 . That is, the heat map may include a plurality of grids representing the positions of the control target lighting LS. Such a heat map may be used for lighting control.

Meanwhile, in the process of generating the heat map in FIGS. 3 to 6 , separate facility location maps and accident history maps may be additionally generated according to service functions. It can be created and managed by an administrator. The facility location map may indicate a space where facilities are located in a specific place. When calculating the movement route, the facility location map may be processed in the same way as the light mask sensor map of FIG. 3(a) and used to generate the movement route. The accident history map may indicate a space where an accident history exists in a specific place. The accident history map is processed in the same way as the obstacle map when calculating the movement path, so it may not be used as a movement path space.

Figure 7 is a detailed flow chart of the heat map generation step of Figure 2 for power saving and facility guidance service provision in the multi-function lighting control method according to a preferred embodiment of the present invention.

2 and 7, the heat map generation step (S350) of the multifunctional lighting control method according to a preferred embodiment of the present invention can be further subdivided in the case of providing power saving and facility guidance services, and the route setting step (S351a), a first synthesis step (S353a), and a second synthesis step (S355a).

Prior to this, in the submap synthesizing step (S340), the heat map generating unit 140 synthesizes a space occupancy map, a facility location map, and a lighting location map among a plurality of submaps according to power saving and facility guidance services to generate a first synthesized map. can create Here, an AND operation may be performed to synthesize the space occupancy map, the facility location map, and the lighting location map.

Then, in the route setting step (S351a), the heat map generation unit 140 designates a plurality of reference points that may be a starting point and an ending point in the first composite map, and sets a minimum path between the plurality of designated reference points. can

In the first synthesis step ( S353a ), the heat map generation unit 140 may create a second synthesis map by forming a movement path in the obstacle map based on the set minimum path.

In the second synthesis step (S355a), the heat map generation unit 140 may generate a heat map by synthesizing the secondary synthesis map and the lighting location map.

8 is a detailed flow chart of a heat map generating step of FIG. 2 for providing an accident prevention service in a multifunctional lighting control method according to a preferred embodiment of the present invention.

Referring to FIGS. 2 and 8 , the heat map generation step (S350) of the multifunctional lighting control method according to a preferred embodiment of the present invention can be further subdivided in the case of providing an accident prevention service, and the path setting step (S351b) , a first synthesis step (S353b), and a second synthesis step (S355b).

Prior to this, in the submap synthesizing step (S340), the heat map generating unit 140 may generate a first synthesized map by synthesizing a space occupancy map and a lighting location map among a plurality of submaps according to the accident prevention service. Here, an AND operation may be performed to synthesize the space occupancy map and the light position map. In addition, the submap generation unit 130 may generate a movement restriction map by synthesizing an obstacle map and an accident history map.

Then, in the path setting step (S351b), the heat map generator 140 may designate a plurality of reference points in the first composite map and set a minimum path between the plurality of designated reference points.

In the first synthesis step (S353b), the heat map generation unit 140 may generate a second synthesis map by forming a movement path in the movement restriction map based on the set minimum path.

In the second synthesis step (S355b), the heat map generation unit 140 may generate a heat map by synthesizing the secondary synthesis map and the lighting location map.

9 is a detailed flowchart of the heat map generating step of FIG. 2 for providing safe walking service in the multi-function lighting control method according to a preferred embodiment of the present invention.

Referring to FIGS. 2 and 9 , the heat map generation step (S350) of the multifunctional lighting control method according to the preferred embodiment of the present invention can be further subdivided in the case of providing a safe walking service, and the path setting step (S351c) , a first synthesis step (S353c), and a second synthesis step (S355c).

Prior to this, in the submap synthesizing step (S340), the heat map generating unit 140 may generate a first synthesized map by synthesizing a space occupancy map and a lighting location map among a plurality of submaps according to the safe walking service. Here, an AND operation may be performed to synthesize the space occupancy map and the light position map.

Then, in the path setting step ( S351c ), the heat map generator 140 may designate a plurality of reference points in the first composite map and set a minimum path between the plurality of designated reference points. Here, the reference point may be further subdivided in the grid area by further considering the x-axis and y-axis distribution of space occupancy information.

In the first synthesis step ( S353c ), the heat map generation unit 140 may create a second synthesis map by forming a movement path in the obstacle map based on the set minimum path.

In the second synthesis step ( S355c ), the heat map generation unit 140 may generate a heat map by synthesizing the secondary synthesis map and the lighting location map.

The above description is merely an example of the technical idea of the present invention, and those skilled in the art can make various modifications, changes, and substitutions without departing from the essential characteristics of the present invention. will be. Therefore, the embodiments disclosed in the present invention and the accompanying drawings are not intended to limit the technical idea of the present invention, but to explain, and the scope of the technical idea of the present invention is not limited by these embodiments and the accompanying drawings. .

Steps and/or actions in accordance with the present invention may occur concurrently in different embodiments, in different orders, or in parallel, or for different epochs, etc., as would be understood by one skilled in the art. can

In some embodiments, some or all of the steps and/or actions may include instructions, programs, interactive data structures, clients and/or servers stored on one or more non-transitory computer-readable media. At least some of them may be implemented or performed using one or more processors that do. The one or more non-transitory computer-readable media may illustratively be software, firmware, hardware, and/or any combination thereof. Additionally, the functions of a “module” discussed herein may be implemented in software, firmware, hardware, and/or any combination thereof.

100: multifunctional lighting control system
110: transceiver
120: space occupancy information generating unit
130: submap generation unit
140: heat map generator
150: control unit
200: sensor device
300: lighting

Claims (15)

a transceiver for receiving space sensing information for each of a plurality of spaces within a predetermined place;
a space occupancy information generator configured to generate space occupancy information for each of the plurality of spaces according to the space sensing information and a predetermined sampling time;
a submap generating unit generating a plurality of submaps composed of a plurality of grids using the space occupancy information and the map information on the predetermined place;
A composite map is generated by synthesizing at least some of the plurality of submaps according to a service provided, at least two reference points are designated in the composite map, a movement path is formed in the composite map based on the reference points, and a hit is hit. a heat map generating unit generating a map; and
a control unit controlling a plurality of lighting lamps distributed in the predetermined place using the heat map;
A multifunctional lighting control system that includes a. According to claim 1,
The spatial sensing information,
Multifunctional lighting control system, characterized in that obtained from a plurality of sensor devices distributed in the predetermined location. According to claim 2,
The plurality of sensor devices,
A multifunctional lighting control system comprising a microwave sensor, an ultrasonic sensor, and an infrared sensor. According to claim 1,
The space occupancy information generating unit,
Multifunctional lighting control system, characterized in that for calculating whether or not the continuity of the space occupancy information from the space sensing information using a moving average value. According to claim 1,
The plurality of submaps,
An instantaneous occupancy map including a space occupied by a user for a certain period of time, a space occupancy map prepared by accumulating the instantaneous occupancy map, an obstacle map including a space where a user cannot move, and a facility including a space where a facility is located A multifunctional lighting control system comprising a location map, an accident history map including a space where an accident history is located, and a lighting location map including a space where the lighting is located. According to claim 5,
The submap generator,
When the service is a lighting power saving service and a facility guidance service, the multifunctional lighting control system, characterized in that for generating the instantaneous occupancy map, the space occupancy map, the obstacle map, the facility location map, and the lighting location map. According to claim 6,
The heat map generator,
A first composite map is created by synthesizing the space occupancy map, the facility location map, and the lighting location map, the at least two or more reference points are set in the first composite map, and the distance between the at least two or more reference points is determined. A multifunctional lighting control system, characterized in that for setting the minimum path. According to claim 7,
The heat map generator,
Based on the minimum path, a movement path is formed on the obstacle map to generate a secondary composite map, and the heat map is generated by synthesizing the secondary composite map and the lamp location map. . According to claim 5,
The submap generator,
When the service is an accident prevention service, the multifunctional lighting control system, characterized in that for generating the instantaneous occupancy map, the space occupancy map, the obstacle map, the accident history map, and the lamp location map. According to claim 9,
The heat map generator,
A first composite map is created by synthesizing the space occupancy map and the lighting location map, a movement restriction map is generated by synthesizing the obstacle map and the accident history map, and the at least two criteria are generated in the first composite map. Multifunctional lighting control system, characterized in that for setting a point, and setting a minimum path between the at least two or more reference points. According to claim 10,
The heat map generator,
Based on the minimum path, a movement path is formed on the movement restriction map to generate a secondary composite map, and the heat map is generated by synthesizing the secondary composite map and the lamp location map. system. According to claim 5,
The submap generator,
When the service is a safe walking service, the multifunctional lighting control system, characterized in that for generating the instantaneous occupancy map, the space occupancy map, the obstacle map, the lamp location map. According to claim 12,
The heat map generator,
Creating a first composite map by synthesizing the space occupancy map and the lighting location map, setting the at least two or more reference points in the first composite map, and setting a minimum path between the at least two or more reference points A multifunctional lighting control system, characterized in that. According to claim 13,
The heat map generator,
Based on the minimum path, a movement path is formed on the obstacle map to generate a secondary composite map, and the heat map is generated by synthesizing the secondary composite map and the lamp location map. . According to claim 1,
The control unit,
When a space-occupied lattice occurs at least twice or more in the heat map during a predetermined time, a lighting time period in which lights located in the space-occupied lattice are turned on is set, and the lighting time period is set for the lighting lamp according to the section of the lighting time period. A multifunctional lighting control system characterized in that it performs dimming control or on-off control.

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