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.
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:
In order to predict power consumption, previous measurements, which indicate the actual amount of power consumed in the past, and errors between previous estimates and the previous measurements, are used as first input data, and power consumption estimates for each prediction technique are simultaneously calculated by using the first input data in at least two prediction techniques. Next, the power consumption estimates calculated by each prediction technique and errors between the power consumption estimates and an actual measurement are used as second input data, and the final power consumption is predicted by making an additional power consumption prediction based on the second input data.
Abstract:
In a sensor network system including at least one sensor node and at least one actuator node, a group is formed based on attribute of each node. Sensing data is shared among the nodes in the group, and each node performs autonomous processing to process an event by comparing the sensing data with a preset event threshold value.