KR101246671B1 - Lighting system accooroding to wireless sensor network and lighting control method thereof - Google Patents

Abstract

A wireless sensor network based lighting system and lighting control method are provided. The wireless sensor network-based lighting control method controls a plurality of lights installed at different locations based on a result of detecting people through a plurality of sensors installed at different locations. This makes it possible to implement new lighting services that are intelligent to people.

Description

Lighting system accooroding to wireless sensor network and lighting control method

The present invention relates to a lighting system and a lighting control method, and more particularly, to a lighting system and a lighting control method in which lighting is controlled according to the surrounding environment and conditions.

In order to save energy, a lighting system has been commercialized to supply power for lighting by self-generation using solar power in a place such as a park.

In this lighting system, the lamp is lighted by using a charged power during the day and a charged power at night. Such charging and discharging is performed separately for each lamp.

As a result, no other convenience is provided other than the ability to automatically turn on the lights individually at night and to turn off the lights automatically at daytime. I feel lacking.

The present invention has been made to solve the above problems, an object of the present invention, wireless sensor network for controlling a plurality of lights in a variety of ways based on the sensed data detected through a plurality of sensors installed in different locations. The present invention provides a lighting system and a lighting control method.

In addition, another object of the present invention is to provide a wireless sensor network-based lighting system and lighting control method that can additionally provide information such as the surrounding environment and usage of the place where the lighting system is installed.

In accordance with an aspect of the present invention, there is provided a wireless sensor network-based lighting control method comprising: detecting people through a plurality of sensors installed at different locations; And controlling a plurality of lamps installed at the different positions based on the detection result in the sensing step.

The controlling may include: determining a moving direction of a person based on the detection result; And controlling the plurality of lamps to be gradually turned on in accordance with the moving direction identified in the grasping step.

In addition, the lighting control step, it is preferable to control the brightness of the plurality of lights differently based on the position of the person.

And, based on the detection result, determining whether or not a person enters; And if it is determined that a person has entered in the determining step, controlling the lighting of a specific range to be turned on.

In addition, the step of identifying the distribution of people based on the detection result in the detection step; And providing a grasping result in the grasping step.

Detecting a surrounding environment through a plurality of sensors installed at different locations; And providing a sensing result in the sensing step.

In addition, the providing step may provide the determination result or the detection result to other terminals connected through a network.

On the other hand, according to the present invention, the wireless sensor network-based lighting system, each of which is installed in a plurality of lights provided in different locations, a plurality of wireless sensor network devices for sensing the people located in the vicinity to transmit sensing data; A gateway for collecting sensed data transmitted by the plurality of wireless sensor network devices; And a management server controlling a plurality of lights provided at the different locations based on the sensed data received from the gateway.

As described above, according to the present invention, it is possible to control a plurality of lights in various ways based on the sensed data detected through a plurality of sensors installed in different locations. This enables new intelligent lighting services for people.

In addition, it is possible to learn the use status and environmental information in the area where the lighting is installed, and through this, it can be utilized for grasping and managing the use status of the installation area. In addition, the collected information is made available to a wider variety of people through the Web.

In addition, unlike the conventional solar-based lighting system that the lighting control is performed only at night, the lighting system and the lighting control method according to the present invention is controlled through a wireless sensor network during the day, to provide more convenient services to people It becomes possible.

1 is a diagram showing a wireless sensor network-based lighting system according to an embodiment of the present invention,
FIG. 2 is a detailed block diagram of the wireless sensor network device shown in FIG. 1;
FIG. 3 is a detailed block diagram of the gateway shown in FIG. 1, and
4 is a detailed block diagram of the park management server shown in FIG.

Hereinafter, with reference to the drawings will be described the present invention in more detail.

1 is a view showing a wireless sensor network-based lighting system according to an embodiment of the present invention. The wireless sensor network-based lighting system according to the present embodiment is applicable to the 'smart park' by the solar power generation method.

'Smart Park' is a park designed to provide intelligent services related to the park by a wireless sensor network. Specifically, a plurality of lights in the park are controlled by the wireless sensor network, as well as environment information and visitor distribution information in the park. It is a state-of-the-art park that can identify and provide real-time usage of parks.

Wireless sensor network-based lighting system according to the present embodiment applicable to such a smart park, as shown in Figure 1, wireless sensor network devices (100-1 to 100-7), the gateway 200 and the park The management server 300 is connected to be established to communicate with each other.

Specifically, the wireless sensor network devices 100-1 to 100-7 and the gateway 200 are connected to each other so as to communicate wirelessly by establishing a wireless sensor network, the gateway 200 and the park management server 300. Are connected to each other via a frame network (N) to be established.

Although the gateway 200 and the park management server 300 are illustrated in FIG. 1 as being connected by wire, this is only an example for convenience of illustration and illustration, and is wirelessly connected, not wired, and a communication method. There is no restriction on the / protocol.

In FIG. 1, the wireless sensor network devices 100-1 to 100-7 are respectively installed in a plurality of lamps provided in a smart park. The plurality of lights may be installed along roads in the smart park as shown in FIG. 1, or may be installed along a boundary of a specific area, or may be installed in a combined form.

Wireless sensor network devices (100-1 to 100-7), 1) detects the intensity of sunlight, 2) detects people entering the surroundings, 3) senses the surrounding environment, such as temperature / humidity, 4 ) Detect the battery level.

Sensing data generated by the wireless sensor network devices 100-1 to 100-7 is transferred to the gateway 200. In this case, the sensing data transfer may be directly transmitted from the wireless sensor network device to the gateway 200 or may be transferred to the gateway 200 by relaying an adjacent wireless sensor network device.

Meanwhile, the wireless sensor network devices 100-1 to 100-7 flash the lamps and adjust their brightness when the lamps are turned on. This operation is controlled by the park management server 300.

The gateway 200 collects sensed data generated by the wireless sensor network devices 100-1 to 100-7 and transmits the sensed data to the park management server 300. In addition, the gateway 200 transmits control data received from the park management server 300 to the wireless sensor network devices 100-1 to 100-7.

The park management server 300 uses the sensing data received from the wireless sensor network devices 100-1 to 100-7 through the gateway 200, and the wireless sensor network devices 100-1 to 100-7. ). In this process, the wireless sensor network-based lighting system illustrated in FIG. 1 may perform various functions, which will be described in detail below.

(One) sunlight  Lighting control by status

The park management server 300 may control the wireless sensor network devices 100-1 to 100-7 so that the lamps blink according to the sunlight condition of the place where the lamps are installed. For example, if it is determined after sunset, the park management server 300 may control the wireless sensor network devices 100-1 to 100-7 so that all the lights in the smart park are turned on.

On the other hand, the park management server 300 wireless sensor network devices 100-1 to 100-7 so that all / some lights in the smart park are turned on when it is determined that the intensity of sunlight is smaller than the set intensity even if not until sunset. Can be controlled.

(2) sunlight  Lighting control by status and set time

The park management server 300 may control the wireless sensor network devices 100-1 to 100-7 so that all the lights in the smart park are turned on for a set time after the sunset (for example, for 9 hours after the sunset). Can be.

In addition, the park management server 300 is a wireless sensor network devices (100-1 to 100) to turn on all / some of the lights in the smart park only during the set time (for example, from 9 pm to 6 am) -7) can be controlled.

(3) control of lighting according to battery level

The park management server 300 may control to turn off the lights of the wireless sensor network device determined that the battery level is insufficient. However, in the case of a wireless sensor network device that turns off the lighting, it is desirable to maintain data sensing and wireless communication. According to this, it is possible to prevent battery discharge of the wireless sensor network device.

(4) Control of lighting according to the presence of people around

The park management server 300 may control the wireless sensor network devices 100-1 to 100-7 to light only a lamp having a person around.

(5) Precedence lighting control

The park management server 300 recognizes the location of the wireless sensor network devices 100-1 to 100-7, that is, the location of a lamp. Therefore, when analyzing the human detection data received from the wireless sensor network devices (100-1 to 100-7), the park management server 300 can calculate the movement trajectory of the person as well as the movement based on this movement trajectory I can grasp the direction.

Thus, the park management server 300 may control the wireless sensor network devices 100-1 to 100-7 so that the lamps are gradually turned on, based on the identified movement direction.

For example, if a person is recognized in the order of 'wireless sensor network device-1 (100-1) → wireless sensor network device-2 (100-2) → wireless sensor network device-3 (100-3)', A person is expected to move in the direction of 'wireless sensor network device-4 (100-4) → wireless sensor network device-5 (100-5) → wireless sensor network device-6 (100-6)'. The apparatus 4, 5 (100-4, 5) is installed so as to control the lighting.

Then, if a person is recognized by the wireless sensor network device-4 (100-4), the park management server 300 is turned on the light is installed wireless sensor network device-6 (100-6), but the wireless sensor network device-1 (100) -1) Control the lamp to turn off.

According to this, two lamps are pre-lit according to the direction of movement of the person, and the number of pre-lit lamps can be changed as necessary.

In addition, the park management server 300 may control the wireless sensor network devices 100-1 to 100-7 so that the brightness of a lamp that a person is currently moving is brighter than the brightness of a preceding or trailing lamp.

(6) zone lighting control

When the smart park is divided into a plurality of zones, the park management server 300 uses the wireless sensor network devices 100-1 to 100-7 so that all lights installed in the zone are turned on when a person enters a specific zone. Can be controlled.

Whether a person has entered the area may be determined by whether any one of the wireless sensor network devices installed in the lights existing in the area is detected.

(7) audio service

The wireless sensor network devices 100-1 to 100-7 are provided with audio output elements. The park management server 300 may transmit audio data such as voice, sound, and music to the wireless sensor network devices 100-1 to 100-7, and in this case, the wireless sensor network devices 100-1 to 100-. 7) outputs the received audio data through the audio output element.

In this case, the park management server 300 may control to output only audio to all or a part of the wireless sensor network devices 100-1 to 100-7.

(8) Identify / provide the use of parks

The park management server 300 may determine which lights are present around people based on the person detection data received from the wireless sensor network devices 100-1 to 100-7.

Meanwhile, the person detection data is accumulated and stored in the park management server 300, and the park management server 300 may grasp the distribution of people in the smart park based on the accumulated person detection data. Specifically, it is determined that the distribution of people is high around the lighting lamp which frequently detects people, and if not, the distribution of people is determined to be low.

The park management server 300 may provide the result of the grasping to the administrator through a display and also deliver the result to another terminal through the web to the general public.

(9) Know / provide park weather

The park management server 300 may determine the weather of the smart park by synthesizing surrounding environment data such as temperature / humidity received from the wireless sensor network devices 100-1 to 100-7.

In addition, the park management server 300 may not only provide the manager with information about the weather in the smart park that has been identified, but also transmit the information to the other terminal to the external network to the general public.

Hereinafter, a detailed configuration of the devices configuring the wireless sensor network based lighting system shown in FIG. 1 will be described in detail.

1. Wireless sensor network device

FIG. 2 is a detailed block diagram of the wireless sensor network devices 100-1 to 100-7 shown in FIG. 1. Since the detailed configurations of the wireless sensor network devices 100-1 to 100-7 are the same, one wireless sensor network device representing them is denoted by reference numeral "100".

As shown in FIG. 2, the wireless sensor network device includes a solar cell 110, a battery 120, a lighting control unit 130, an audio output unit 140, a solar sensing unit 150, and power switching / resetting. The unit 160, the wireless sensor network communication unit 170, the temperature / humidity sensor 180, the human body sensor 190 is provided.

The solar cell 110 converts solar energy into electrical energy and supplies it to the battery 120. Accordingly, the battery 120 is charged with solar energy and supplies power to other devices.

The solar detector 150 detects the intensity of sunlight incident through the solar cell 110, and the temperature / humidity sensor 180 detects a surrounding environment such as temperature / humidity around a lamp, and detects a human body sensor ( 190 detects the presence of a person around the lamp, the wireless sensor network communication unit 170 detects the battery level.

The wireless sensor network communication unit 170 transmits solar detection data, ambient environment detection data, person detection data, and battery remaining detection data to the gateway 200. In some cases, the wireless sensor network communication unit 170 may transmit the sensed data to the gateway 200 through the relay of other wireless sensor network devices in the vicinity.

The lighting controller 130 controls the blinking of the lamp and the brightness of the lamp according to the control data received from the park management server 300. The audio output unit 140 outputs audio data received from the park management server 300.

The power switching / resetting unit 160 switches so that the power of the battery 120 is supplied only when the voltage of the battery 120 is greater than or equal to the threshold voltage. That is, when the voltage of the battery 120 is less than the threshold voltage, the power from the battery 120 is cut off to prevent the wireless sensor network device 100 from malfunctioning.

In addition, the power switching / resetting unit 160 generates a reset signal periodically so that the reset is retried when the wireless sensor network device 100 fails to reset. If the wireless sensor network device 100 successfully resets, the power switching / resetting unit 160 does not generate a reset signal.

2. Gate way

FIG. 3 is a detailed block diagram of the gateway 200 shown in FIG. 1. As shown in FIG. 3, the gateway 200 includes a solar cell 210, a battery charger 220, a battery 230, a controller 240, a wireless sensor network interface 250, and a network interface 260. It is provided.

The solar cell 210 converts solar energy into electrical energy and applies it to the battery charger 220. The battery charger 220 charges the battery 120 using electric energy applied from the solar cell 210. The battery 120 supplies power to other elements.

The wireless sensor network interface 250 is connected to communicate with the wireless sensor network devices 100-1 to 100-7. In addition, the network interface 260 is connected to communicate with the park management server 300.

The controller 240 transmits the sensing data collected from the wireless sensor network devices 100-1 to 100-7 through the wireless sensor network interface 250 to the park management server 300 through the network interface 260. .

In addition, the control unit 240 transmits the control data and the audio data received from the park management server 300 through the network interface 260 through the wireless sensor network interface 250 to the wireless sensor network devices 100-1 to 100-. 7) to pass.

3. Park Management Server

4 is a detailed block diagram of the park management server 300 shown in FIG. As shown in FIG. 4, the park management server 300 includes a network interface 310, a monitor 320, a central processing unit 330, a user input unit 340, and a storage unit 350.

The network interface 310 is connected to communicate with the gateway 200 to receive sensing data from the gateway 200. The network interface 310 is also connected to the web.

The monitor 320 is a display which displays visual information for the administrator to view, and displays the status of blinking lights, park usage and park weather.

The central processing unit 330 performs a manager's command input through the user input unit 340. Specifically, the central processing unit 330 uses the sensed data received through the network interface 310, 1) the lamp control according to the solar condition, 2) the lamp control according to the solar condition and the set time, 3 ) Lighting control based on battery level, 4) Lighting control based on the presence of people nearby, 5) Pre-lighting control, 6) Zone lighting control, 7) Audio service, 8) Park use / failure and 9) Park weather Perform identification / provision.

In addition to storing the sensed data received through the network interface 310, the storage 350 may also store the park usage status and the park weather identified by the central processing unit 330 by date.

4. Variant

Up to now, the preferred embodiment for the wireless sensor network-based lighting system has been described in detail. In the above embodiment, the wireless sensor network-based lighting system is assumed to be applied to a smart park, but this is merely an example for convenience of description. Of course, the present invention can be applied to a wireless sensor network-based lighting system that is applied to other than the smart park.

In addition, in the above embodiment, it is assumed that the wireless sensor network devices 100-1 to 100-7 are centrally controlled by the park management server 300, but this is also merely an example for convenience of description. It is deformable. For example, 1) lighting control based on solar conditions, 2) lighting control based on solar conditions and set time, 3) lighting control based on battery level, 4) lighting control based on presence of nearby people, etc. It is possible to implement the wireless sensor network devices 100-1 to 100-7 to perform their own operation without the control of the server 300.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the invention is not limited to the disclosed exemplary embodiments, but, on the contrary, It will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the present invention.

100, 100-1 to 100-7: wireless sensor network device
110: solar cell 120: battery
130: lighting control unit 140: audio output unit
150: solar detection unit 160: power switching / reset unit
170: wireless sensor network communication unit 180: temperature / humidity sensor
190: human body detection sensor 200: gateway
210: solar cell 220: battery charging unit
230: battery 240: control unit
250: wireless sensor network interface 260: network interface
300: park management server 310: network interface
320: monitor 330: central processing unit
340: user input unit 350: storage unit

Claims (8)

Detecting people through a plurality of sensors installed at different locations;
Controlling a plurality of lights installed at different positions based on the detection result in the sensing step;
Determining distribution of people for each of the plurality of lamps based on the detection frequency in the detecting step; And
And providing a distribution map of the people identified by the plurality of lighting lamps in the distribution map determining step.
The control step,
Determining a moving direction of a person based on the detection result; And
And controlling the plurality of lamps to be gradually turned on in accordance with the movement direction identified in the movement direction determining step.
The lighting control step,
A wireless sensor network-based lighting control method characterized by controlling the brightness of a lighting lamp that a person is currently moving brighter than the brightness of a preceding or following lighting lamp.
delete delete The method of claim 1,
Determining whether a person enters a specific range based on the detection result; And
If it is determined that the person entered in the determination step, the step of controlling the lighting lights of the specific range; Wireless sensor network based lighting control method comprising a.
delete The method of claim 1,
Detecting a surrounding environment through a plurality of sensors installed at different locations; And
The wireless sensor network-based lighting control method further comprising the step of providing a detection result in the surrounding environment detection step.
The method of claim 1,
The providing step,
Wireless sensor network-based lighting control method characterized in that it provides a distribution map of the people identified by the plurality of lights to other terminals connected through a network.
A plurality of wireless sensor network devices each installed in a plurality of lights provided at different locations and transmitting sensing data by detecting people located in the vicinity;
A gateway for collecting sensed data transmitted by the plurality of wireless sensor network devices; And
And a management server controlling a plurality of lights provided at the different locations based on the sensed data received from the gateway.
The management server includes:
Determine a moving direction of a person based on the detection result of the plurality of wireless sensor network devices, and control the plurality of lamps to be gradually turned on according to the determined moving direction,
To control the brightness of a moving light that a person is currently moving to be brighter than the brightness of a preceding or following light,
Based on the detection frequency of the plurality of wireless sensor network devices, grasp the distribution of people for each of the plurality of lights, and provides a distribution map of the people identified for each of the plurality of lights. .

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