Abstract:
In a light-installed area where a plurality of lights are installed, a light managing system senses a moving object that enters the light-installed area and predicts an predicted stop position of the moving object based on record information on a channel of movement corresponding to identification information on the moving object. The light managing system calculates a predicted channel of movement of the moving object based on the predicted stop position, and selects lights to be driven based on the calculated predicted channel of movement. The light managing system turns on the selected lights.
Abstract:
A high energy efficiency sensor node and an operating method thereof are provided. The high energy efficiency sensor node may include a sensing unit to generate sensed information and to store the sensed information in a database when a set period commences, and a control unit to obtain n pieces of sensed information corresponding to n periods from the database, and to transmit the n pieces of sensed information obtained to a first neighbor node when the n periods elapse.
Abstract:
A high energy efficiency sensor node and an operating method thereof are provided. The high energy efficiency sensor node may include a sensing unit to generate sensed information and to store the sensed information in a database when a set period commences, and a control unit to obtain n pieces of sensed information corresponding to n periods from the database, and to transmit the n pieces of sensed information obtained to a first neighbor node when the n periods elapse.
Abstract:
In a wireless sensor actuator network system, actuators to be actuated to correspond to a plurality of sensors are selected using an A-S matrix that represents relationship strength between a plurality of actuators and the plurality of sensors based on sensing data of the plurality of sensors, and only the selected actuators determine actuation values based on values of the A-S matrix.
Abstract:
A network managing apparatus and a transmission method thereof are provided. The transmission method includes: broadcasting a plurality of packets using a plurality of shared timeslots shared by a plurality of network nodes for downlink communication and a base channel; determining one or more missed packets that are not received by the plurality of network nodes among the plurality of packets; determining a distributor that is to transmit the one or more missed packets and a distribution timeslot and a distribution channel for transmission of the one or more missed packets; and broadcasting transmission schedule information including information on the distributor and information on the distribution timeslot and the distribution channel using the base channel.