KR101585925B1 - Method for controlling light using WoT broker - Google Patents

Abstract

The present invention relates to a lighting control method capable of optimally controlling illumination in real time using a web of things broker. A lighting control method according to the present invention is a lighting control method for a lighting control system, comprising the steps of: transmitting a signal corresponding to a user detection to a web server in a room sensor disposed at an entrance, The illuminance sensor transmits the first illuminance adjustment signal calculated on the basis of the first illuminance setting information and the ambient brightness to the overall illumination, and adjusts the illuminance according to the first illuminance adjustment signal received in the overall illumination. According to the present invention, lighting can be controlled in an optimal state in real time using a material web-based technology, and lighting conditions and energy usage can be monitored in real time

Description

[0001] The present invention relates to a method for controlling real-time lighting using a WoT broker,

The present invention relates to a lighting control method, and more particularly, to a lighting control method capable of optimally controlling illumination in real time using a web of things broker.

Generally, the lighting control of a hall or a parking lot of a building is controlled by a circuit by a photo sensor, a room sensor, a lamp, etc., and is controlled by a regular time schedule program Auto ignition, and off, using a method that allows for on-site operation. In addition, an infrared ray transmitter / receiver is used to manipulate the lighting load with a remote control or dimming control to be interlocked, and is used in conference rooms, seminar rooms, and the like.

In recent years, the importance of building energy management has emerged, and development of service - based technology has been demanded from the point of integrated management from the simple control and manual management system.

Accordingly, the lighting equipment system for monitoring and controlling the lighting equipment is configured as a server / client, and client programs are installed at various locations in addition to the main program to perform lighting monitoring and control.

However, existing building networks have been configured and operated separately by implementing subsystem such as lighting equipment system, power equipment system, and machine equipment system. Therefore, separate monitoring and control facilities are required for each system, which makes it difficult for new installation companies to enter the remodeling market.

Accordingly, if a building detection and control system is developed through inter-object communication, it is possible not only to solve the obstacle of the building network, but also to freely communicate between different types of equipment, thereby providing more various services.

Therefore, it is necessary to consider a method of controlling lighting in an optimal state in real time by applying a lightweight web service platform technology, which is a Web of Thing based technology, to a lighting device which is an essential device for building automation.

SUMMARY OF THE INVENTION Accordingly, it is an object of the present invention to provide a lighting control method capable of controlling lighting in an optimal state in real time using an object web-based technology.

According to an aspect of the present invention, there is provided a lighting control method including: transmitting a signal corresponding to user access detection to a web server in a room sensor disposed at an entrance; Transmitting a signal for controlling illumination to an illuminance sensor, transmitting a first illuminance adjustment signal calculated based on the first illuminance setting information and ambient brightness in the illuminance sensor to the overall light, Adjusting the illuminance according to the first illuminance adjustment signal.

According to another aspect of the present invention, there is provided a lighting control method comprising: transmitting a signal corresponding to a user detection to a web server in a room sensor disposed in a predetermined zone; A second illuminance adjustment signal and a third illuminance adjustment signal calculated on the basis of the second illuminance setting information and the ambient brightness are transmitted to the illuminance sensor, Adjusting the illuminance in accordance with the second illuminance adjustment signal in the overall illumination; And adjusting the illuminance in accordance with the third illuminance adjustment signal in the local illumination.

In order to achieve the above object, the present invention provides a recording medium readable by a processor that records a program for causing the processor to execute the method.

According to the present invention, it is possible to control illumination in an optimal state in real time using a material web-based technology, and to monitor illumination state and energy usage in real time. Further, according to the present invention, the initial construction cost can be reduced compared with the existing lighting control system by the low-power, ultra-small and low-cost network configuration, and the energy efficiency of the entire lighting control system can be saved.

1 is a diagram illustrating a system configuration to which a lighting control method according to an embodiment of the present invention is applied;
2 is a signal flow diagram provided in the description of a lighting control method according to an embodiment of the present invention;
3 is a diagram illustrating a system configuration to which a lighting control method according to another embodiment of the present invention is applied, and FIG.
4 is a signal flow diagram provided in the description of a lighting control method according to another embodiment of the present invention.

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

FIG. 1 illustrates a system configuration to which a lighting control method according to an embodiment of the present invention is applied. In this embodiment, the case of controlling the office lighting will be described as an example.

Referring to FIG. 1, an entrance hall sensor 100 is installed near an office entrance, and general lights 500a to 500c and illuminance sensors 400a to 400c are installed on a ceiling of an office.

General diffused lighting is employed in factories, offices, classrooms, etc. for the purpose of illuminating a single room with a uniform illuminance using a highly diffusible lighting fixture.

Workspace residential sensors 200a-200d and work area lights 600a-600d are installed in a workspace such as near a desk.

The web server 300 is installed to communicate with other devices inside or outside the office, and supports the object web broker structure. To do this, a related program can be loaded. The object web broker is classified into two layers of service layer and conversion layer. There are 6 functions such as service profile management FE, service control FE, service combination FE, service access control FE, resource management FE and resource ID management FE A functional entity (FE), and a plurality of agents.

The number of the workspace redundant sensors 200a to 200d, the illuminance sensors 400a to 400b, the overall lights 500a to 500c and the work area lights 600a to 600d may be larger or smaller can do.

The entrance area sensor 100, the work area sensor 200a to 200d, the web server 300, the illuminance sensors 400a to 400b, the overall lights 500a to 500c, and the work area lights 600a to 600d, Network (Mesh Network).

A mesh network is a self-organizing self-determination network consisting of nodes that automatically configure an ad hoc network and maintain mesh connectivity. The mesh network has a structure in which each node constituting the network can always operate the network irrespective of whether the other node is operable or not. Since the mesh network has no infrastructure, it operates as an ad hoc, guarantees the connectivity of IP between heterogeneous networks, can provide low cost, easy management, and reliable coverage.

In addition, the input room sensor 100, the work area occupancy sensors 200a to 200d, the web server 300, the illuminance sensors 400a to 400b, the overall lights 500a to 500c, and the work area lights 600a to 600d, The Web server 300 can communicate with each other using a Zigbee or CoAP (Constrained Application Protocol) protocol.

ZigBee is a data communication protocol based on the 802.15.4 LR-WPAN (Low Rate-Wireless Personal Area Network) PHY / MAC base, which uses the 868 MHz band in Europe, the 915 MHz band in the US and Australia, Frequency band is used. ZigBee is a wireless communication technology that offers low power, ultra-small size, low cost and ease of use, and enables a large-scale wireless sensor network by combining a ZigBee transceiver with a sensor.

On the other hand, CoAP is a method of requesting resource events (eg, temperature, humidity) between M2M nodes at a higher application layer including the transport layer including TCP and UDP, and how to make resource events asynchronously (REST) -based approach to designing the protocol to be transmitted to the node.

CoAP is designed as a sensor network protocol format and is currently registered with the RFC. It is mainly classified as a network protocol of the IOT era and is classified as a low power oriented protocol. It is mainly used for sensor data transmission and has an asynchronous request / response design structure.

The main details of the CoAP are as follows.

First, CoAP is a low-power network protocol, so there is a requirement to reduce the load as much as possible. Because of this, binary headers are applied to minimize network overhead.

CoAP is a UDP-based protocol. The UDP feature does not guarantee delivery, as TCP guarantees delivery of the data. Therefore, the broadcasting method is mainly utilized. However, CoAP has made several improvements by further improving such a method. For example, Confirmation Message, Non-Confirmation Message, and Reset Message.

Also, existing HTTP supports synchronous method, but CoAP operates asynchronously. However, there are some limitations over general asynchrony. The constraints are factors such as the time interval during M2M communication.

CoAP is based on RESTful, and originally RESTful does not support HTTP, but is applied to CoAP. RESTful GET, POST, PUT, and DELETE methods are supported.

This is a message format of CoAP. Confirmative Message that notifies when there is data lost when transmitting / receiving data by UDP method out of the typical UDP base, Non-Confirmative Message which is called UDP type message, And a reset message to be sent when there is an Ack Message and an Empty Message.

2 is a signal flow diagram provided in the description of a lighting control method according to an embodiment of the present invention. Hereinafter, for convenience of explanation, a case will be described in which there is only one general lighting, an illuminance sensor, and a work area illumination.

Referring to FIG. 2, when the user enters and exits the office, the entrance hall sensor 100 senses the entrance and exit of the user (S700), and transmits a signal corresponding to the user entrance / exit detection to the web server 300 (S705).

The web server 300 transmits a signal for controlling the illumination to the illuminance sensor 400 according to preset illuminance setting information (S710).

The illuminance sensor 400 transmits an illuminance adjustment signal for controlling the illuminance of the overall illumination 500 to the overall illumination 500 according to the illuminance setting information and the surrounding brightness at step S715, The illuminance is adjusted according to the adjustment signal (S720).

For example, when the office illuminance setting information is set to 500 lux and the indoor brightness is 100 Lux, the illuminance sensor 400 transmits the illuminance adjustment signal so that the illuminance of the overall illumination 500 becomes 400 Lux, 500Lux is maintained.

When the user moves to a work area such as a desk, the work area sensor 200 detects the user (S725), and transmits a signal corresponding to the user detection to the web server 300 (S730).

The web server 300 transmits a signal for controlling the illumination to the illuminance sensor 400 according to preset illuminance setting information (S735).

The illuminance sensor 400 transmits an illuminance control signal for illuminance control of the lamp 500 to the lamp 500 in step S740 and the lamp 500 adjusts the illuminance according to the received illuminance control signal S745).

The illuminance sensor 400 transmits an illuminance control signal for illuminance control of the working area illuminator 600 to the illuminator 600 in operation S750 and the illuminator 600 illuminates the illuminator The illuminance is adjusted (S755).

Accordingly, the illuminance of the main lighting 500 and the working area illumination 600 can be appropriately adjusted. For example, the work area illumination 600 may be adjusted to 400 Lux and the overall illumination 500 to be of the order of 100 Lux.

With this process, the office lighting can be adjusted to the optimum illumination in real time.

In addition, the office lighting can be adjusted by using the illuminance sensor installed inside the office and the illuminance sensor installed at the window. For example, when the morning sun rises, the indoor illumination is very high, so the dimming level of office lighting is adjusted to 0 to 20%. In case of cloudy day or darkness, the dimming level of the office lighting lights up to 50 ~ 70% and can be maintained at the optimum illumination. In the case of a bathtub, the lighting of the area can be dimmed to about 80% according to the detection signal of the motion sensor, and it can be configured to automatically turn off after a certain waiting time elapses after use.

FIG. 3 shows a system configuration to which a lighting control method according to an embodiment of the present invention is applied. In this embodiment, the case of controlling the conference room illumination will be described as an example.

Referring to FIG. 3, an entrance room sensor 100 is installed near the entrance of the conference room, and general lights 500a to 500c and illuminance sensors 400b to 400d are installed in the conference room ceiling.

In the PT zone, which is a presentation zone, a PT zone chamber sensor 250, an illuminance sensor 400a, and a PT zone illumination 650 are installed. The web server 300 is installed to be able to communicate with other devices inside or outside the conference room.

The number of the PT zone accommodation sensor 250, the illuminance sensors 400a to 400d, the overall lights 500a to 500c, and the PT zone lights 650 may be more or less than the number .

The entrance room sensor 100, the PT zone room sensor 250, the web server 300, the illumination sensors 400a to 400d, the overall lights 500a to 500c, and the PT zone light 650 are connected to a mesh network ).

The entrance room sensor 100, the PT zone room sensor 250, the web server 300, the illuminance sensors 400a to 400d, the general lights 500a to 500c, and the PT zone light 650 are the same as the above- They can communicate with each other using Zigbee or CoAP (Constrained Application Protocol) protocols.

4 is a signal flow diagram provided in the description of a lighting control method according to another embodiment of the present invention. Hereinafter, for convenience of explanation, a case will be described in which there is only one general lighting, an illuminance sensor, and a work area illumination.

Referring to FIG. 4, when the user enters and exits the conference room, the entrance hall sensor 100 senses the entrance and exit of the user (S800), and transmits a signal corresponding to the user entrance detection to the web server 300 (S805).

The web server 300 transmits a signal for controlling the illumination to the illuminance sensor 400 according to preset illuminance setting information (S810).

The illuminance sensor 400 transmits an illuminance control signal for controlling the illuminance of the overall illumination 500 to the overall illumination 500 according to the illuminance setting information and the surrounding brightness at step S815, The illuminance is adjusted according to the adjustment signal (S820).

For example, when the illuminance setting information at the time of user access is set to 300 Lux and the room brightness is 100 Lux, the illuminance of the primary illumination 500 is adjusted to be 200 Lux, so that the overall illuminance is maintained at 300 Lux.

When the user moves to the PT zone, the PT zone room sensor 250 detects the user (S825), and transmits a signal corresponding to the user detection to the web server 300 (S830).

The web server 300 transmits a signal for controlling the illumination to the illuminance sensor 400 according to preset illuminance setting information (S835).

The illuminance sensor 400 transmits an illuminance control signal for illuminance control of the lamp 500 to the lamp 500 in step S840 and the lamp 500 adjusts the illuminance according to the received illuminance control signal S845).

The illuminance sensor 400 transmits an illuminance control signal for illuminance control of the PT zone illuminator 650 to the PT zone illuminator 650 in operation S850 and the PT zone illuminator 650 illuminates, The illuminance is adjusted (S855).

Accordingly, the illuminance of the primary illumination 500 and the PT zone illumination 650 can be appropriately adjusted. For example, the PT zone illumination 600 may be adjusted to 300 Lux and the overall illumination 500 to be about 100 Lux.

With this process, the lighting of the conference room can be adjusted in real time, and the lighting of the conference room can be kept in the optimum state.

In addition, the color temperature of the overall illumination 500 can be adjusted by the schedule control to be concentrated without being tedious during a meeting in combination with various color temperatures, and the color temperature can be adjusted to the color temperature suitable for the human body rhythm by the schedule control.

Schedules can be scheduled using a Web server and a smart phone, and after the meeting, all of the lights can be controlled to be turned off after waiting time.

In addition, it is possible to control the lighting of the main window or the building corridor. For example, in the case of the spindle illumination control, the dimming level of the average illumination is maintained at 30%, and when the motion of the person or the vehicle is detected by the sensor, only the illumination of the designated area is dimmed to about 80% It can be maintained at 30% again.

In the case of lighting control of a building hall, the dimming level of the average illumination is maintained at 30%, and when the movement of a person is detected by the room sensor, only the illumination of the designated area is dimmed to about 80% %. ≪ / RTI >

Meanwhile, the present invention can be implemented as a code that can be read by a processor in a recording medium readable by the processor. The processor-readable recording medium includes all kinds of recording apparatuses in which data that can be read by the processor is stored. Examples of the recording medium readable by the processor include a ROM, a RAM, a CD-ROM, a magnetic tape, a floppy disk, an optical data storage device, and the like, and also a carrier wave such as transmission over the Internet. In addition, the processor readable recording medium may be distributed over networked computer systems so that code readable by the processor in a distributed manner can be stored and executed.

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 should be understood that various modifications may be made by those skilled in the art without departing from the spirit and scope of the present invention.

100: inlet chamber sensor 250: PT chamber chamber sensor
300: Web server 400a to 400c:
500a to 500c: general lighting

Claims (9)

Transmitting a signal corresponding to the user access detection to the web server from an entrance room sensor disposed at an entrance and transmitting a signal for controlling illumination according to preset first illuminance setting information to the illuminance sensor;
Transmitting the first illuminance adjustment signal calculated based on the first illuminance setting information and the ambient brightness in the illuminance sensor to the overall illumination;
Adjusting illuminance in accordance with the first illuminance adjustment signal in the overall illumination;
A signal corresponding to the user detection is transmitted to the web server from a room sensor disposed in a predetermined zone and a signal for controlling illumination is transmitted to the illuminance sensor according to the second illuminance setting information previously set in the web server step;
Transmitting the second illuminance adjustment signal and the third illuminance adjustment signal, which are calculated based on the second illuminance setting information and the ambient brightness, to the overall illumination and the local illumination, respectively;
Adjusting illuminance in accordance with the second illuminance adjustment signal in the overall illumination; And
Adjusting the illuminance in accordance with the third illuminance adjustment signal in the local illumination,
Wherein the occupant sensor, the illuminance sensor, the central lighting, and the local illumination are configured by a mesh network and communicate using any one of ZigBee and CoAP (Constrained Application Protocol). delete delete delete delete The method according to claim 1,
Wherein the preset specific area is one of a user work area and a presentation area. The method according to claim 1,
And adjusting the color temperature of the main lighting according to a preset schedule control. The method according to claim 1,
Further comprising setting a schedule for lighting control through communication with the web server. The method according to claim 1,
Wherein the web server is equipped with a program for supporting a object web broker structure.

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