Abstract: Disclosed are a safety communication system and a method thereof that provide a risk occurrence position and a notification function, and more particularly, disclosed is communication technology including a sensor based lighting for rapidly responding to a risk situation. The safety communication system according to an exemplary embodiment of the present invention includes: a device sensing a risk situation; a lighting crime prevention system analyzing risk situation data received from the device and including a position ID to generate situation data; and a lighting control system controlling an operation of a lighting depending on the situation data.

Abstract: Disclosed is a method and apparatus for integrally controlling lighting according to the status of power reserve stages. The apparatus for integrally controlling lighting according to power reserve stage, comprises: a lighting control result receiver for receiving lighting control result data generated by integrating a lighting identification number and control result information of the LED light source the brightness of which is controlled according to power reserve stage-based lighting control information; a power reserve stage determination unit for determining a power reserve stage based on the received lighting control result data; and a power reserve stage issuer for transmitting the determined power reserve stage to the lighting controller in real time.

Abstract: Disclosed herein are an LED lighting control apparatus and an LED lighting control system using the apparatus. The proposed system includes a wired lighting unit connected to LED lighting in a wired manner and configured to perform lighting control on LED lighting. A wireless lighting unit performs lighting control on the LED lighting via wireless communication with a wireless terminal and operates in conjunction with the wired lighting unit. A location communication unit allocates individual IDs of LED lighting and performs transmission/reception of data to/from an external terminal. A multi-sensor unit supports multiple sensors and analyzes sensor data collected from the multiple sensors. An active heat dissipation unit dissipates heat from the LED lighting based on analyzed sensor data. A processor control unit controls operations of the wired lighting unit, the wireless lighting unit, the location communication unit, the multi-sensor unit, and the active heat dissipation unit.

Abstract: Disclosed herein is an LED lighting control apparatus and method based on visible light communication. The LED lighting control apparatus includes lighting information collection means for collecting status information about lighting means and environmental information about surroundings of the lighting means, and transmitting the collected information to lighting control means.

Abstract: Disclosed herein are a visible light communication method and apparatus. The visible light communication method includes determining whether a current location is the start of a symbol of a transmission signal, setting a sample index, a signal accumulated value for an accumulation region of a front half portion of the symbol, and a signal accumulated value for an accumulation region of a rear half portion of the symbol, determining whether the sample index belongs to an accumulation region of the front or rear half portion of the symbol, and accumulating samples of the transmission signal in accordance with the location to which the sample index belongs, determining whether a current location corresponds to the end of the symbol, and outputting a Variable Pulse Position Modulation (VPPM) communication signal corresponding to the transmission signal.

Abstract: Disclosed herein are a Visual Light Communication (VLC) method and apparatus using a DMX-512 network. The VLC apparatus includes a DMX signal generation unit and a DMX signal transmission unit. The DMX signal generation unit generates VLC data packets each including a DMX header, fragmentation information, and a data fragment. The DMX signal transmission unit transmits the VLC data packets to an LED lighting apparatus coupled over a DMX-512 network in order to perform VLC.

Abstract: An apparatus and a method for measuring a position of a light are disclosed. The apparatus for measuring a position of a light includes: an inputting unit configured to receive position information on a building and a floor in which a user is positioned; a position coordinate calculating unit configured to measure distances between a position of the user and wall surfaces in the building in each direction and calculate a position coordinate of the user based on the distances in each direction; a position determining unit configured to apply the position coordinate to a plan view corresponding to the position information to determine an initial position of the user; and a position information combining unit configured to receive a light identifier depending on movement of the user and store position information of the light corresponding to the light identifier.

Abstract: Disclosed herein are an LED lighting control apparatus and an LED lighting control system using the apparatus. The proposed system includes a wired lighting unit connected to LED lighting in a wired manner and configured to perform lighting control on LED lighting. A wireless lighting unit performs lighting control on the LED lighting via wireless communication with a wireless terminal and operates in conjunction with the wired lighting unit. A location communication unit allocates individual IDs of LED lighting and performs transmission/reception of data to/from an external terminal. A multi-sensor unit supports multiple sensors and analyzes sensor data collected from the multiple sensors. An active heat dissipation unit dissipates heat from the LED lighting based on analyzed sensor data. A processor control unit controls operations of the wired lighting unit, the wireless lighting unit, the location communication unit, the multi-sensor unit, and the active heat dissipation unit.

Abstract: The present invention relates to an intelligent lighting control apparatus and method, which control an intelligent lighting unit including multiple sensors depending on time, place, scene, environment, or the like, based on the results of sensing by the sensors. The intelligent lighting control apparatus includes a multi-sensor unit including multiple sensors, the multi-sensor unit sensing motion of a person or an object within a set sensing area using at least one of the multiple sensors. A lighting control unit controls an operation of a lighting unit based on frequency data corresponding to results of sensing by the multi-sensor unit and a class of lighting type corresponding to the frequency data.

Abstract: The present invention relates to a real-time movement path estimation apparatus using visible light communication. A server for performing communication with an agent for tracking a location of a client which is a target to be tracked includes an agent management unit for setting the agent and the client. A server communication unit receives management information of the agent at intervals of a preset monitoring period. A path prediction unit derives a predicted path for a movement path of the client, based on the location information of the client included in the management information and tracked by a location determination device including a visible light communication device or an image capturing device in the agent.

Abstract: Disclosed herein is a visible light communication method and device using a DMX-512 network. In the visible light communication method, dimming data packets are received. Visible Light Communication (VLC) data packets are generated. The dimming data packets and the VLC data packets are scheduled so that one or more of the VLC data packets are transmitted to Light Emitting Diode (LED) lighting devices connected over a Digital Multiplex (DMX)-512 network between transmission times of the dimming data packets.

Abstract: The present invention relates to a method of processing a Digital Multiplex (DMX)-Visible Light Communication (VLC) address and a device using the method. In the method of processing a DMX-VLC address, a DMX-512 packet is received. It is determined whether the DMX-512 packet includes dimming data by using a start code of the DMX-512 packet. Lighting data is processed using an address recorded in a DMX-512 address field of a DMX-VLC address included in the DMX-512 packet if it is determined that the DMX-512 packet includes the dimming data. Non-lighting data is processed using an address recorded in a DMX-VLC extended address field of the DMX-VLC address if it is determined that the DMX-512 packet does not include dimming data.

Abstract: Disclosed herein are an apparatus and method for controlling a lighting network. The apparatus for controlling lighting network includes a control device and a plurality of control gears. The control device generates and transfers commands to control lighting. The plurality of control gears receives the commands from the control device and control lighting. The control device assigns a right to use a lighting network to the control gears, and the control gears send information about a change in a lighting state or error details to the control device using the right to use a lighting network.

Abstract: The present invention relates to a motion sensor and method of operating the motion sensor, which can adjust the range of a detection area. For this, the motion sensor according to the present invention includes a detection unit for outputting a variation signal corresponding to motion. A threshold level setting unit variably sets at least one changeable threshold level. A comparison unit detects the motion by performing a comparison operation based on the changeable threshold level and the variation signal at threshold sensitivity corresponding to the changeable threshold level.

Abstract: Disclosed herein are an apparatus and method for sensing an error and a variation in Light-Emitting Diode (LED) lighting. In the method, a PWM signal including required light emission information is generated. Tail data including operation information is generated. A CRC value based on the tail data is also generated. A tail-CRC signal is generated by combining the tail data with the CRC value. Finally, a PWM-tail signal is generated by combining the tail-CRC signal with the PWM signal.

Abstract: Disclosed herein is an apparatus and method for controlling a fault in a lighting network The apparatus includes power selection units respectively provided in a plurality of lighting units connected to one another over a network, each power selection unit being configured to compare a reference voltage with an output voltage sensed from power supply signals input from power supply units respectively provided in a lighting unit, located ahead of a faulty lighting unit, and the faulty lighting unit if a fault occurs in the lighting unit, and to select supply power to be supplied to the faulty lighting unit. Lighting control units control driving of the faulty lighting unit using the selected supply power.

Abstract: Disclosed herein are a visible light communication method and apparatus. The visible light communication method includes determining whether a current location is the start of a symbol of a transmission signal, setting a sample index, a signal accumulated value for an accumulation region of a front half portion of the symbol, and a signal accumulated value for an accumulation region of a rear half portion of the symbol, determining whether the sample index belongs to an accumulation region of the front or rear half portion of the symbol, and accumulating samples of the transmission signal in accordance with the location to which the sample index belongs, determining whether a current location corresponds to the end of the symbol, and outputting a Variable Pulse Position Modulation (VPPM) communication signal corresponding to the transmission signal.

Abstract: A pulse generator of an ultra wideband (UWB) system includes: a plurality of delay cells for receiving pulses, delaying the received pulses for a predetermined time, and outputting the delayed pulses; and an edge combiner connected to output ends of the plurality of delay cells for receiving the delayed pulses from the plurality of delay cells, outputting fine pulses corresponding to the delayed time, and generating one impulse signal with the outputted fine pulses. The edge combiner includes a plurality of XOR gates for receiving a first delayed pulse and a second delayed pulse from an nth delay cell and an (n+1)th delay cell among the plurality of delay cells and generating fine pulses, respectively, and an OR gate for receiving a first fine pulse and a second fine pulse respectively output from a first XOR gate and a second XOR gate included in the plurality of XOR gates.

Abstract: The present invention relates to an inter-vehicle communication apparatus and method using visible light communication. The inter-vehicle communication apparatus using visible light communication includes a spreading code application unit for applying a spreading code to transmission data desired to be transmitted, and a transmission unit for generating a transmission frame based on the transmission data to which the spreading code is applied, and transmitting the transmission frame via a lighting lamp of a vehicle. The transmission frame includes a preamble field required to synchronize the transmission frame, a data field required to transmit the transmission data, and a position field required to provide hopping information of the transmission data.

Abstract: Disclosed herein is an LED lighting control apparatus and method based on visible light communication. The LED lighting control apparatus includes lighting information collection means for collecting status information about lighting means and environmental information about surroundings of the lighting means, and transmitting the collected information to lighting control means.