Abstract:
In order to detect an unmanned aerial vehicle (UAV) in a monitoring area using a rotatable camera, an integrated sensor configures a first detection area in the monitoring area by rotating the camera after fixing the focal length of the camera to an initial value, and configures a second detection area in the monitoring area by rotating the camera after changing at least one of the focal length of the camera and a rotation path representing a distance from the origin of the monitoring area.
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:
A method for transmitting, storing and managing data by compressing data packets to be transmitted and received over an advanced metering infrastructure (AMI) network with low-capacity memory and low-transfer rate. A number of transmission packets may be reduced using at least one of a bitmap interval algorithm that assigns a bitmap value to each interval, thereby reducing a number of request packets, a repeated-bitmap interval algorithm that represents sequential data values as bitmap values by toggling a bit value between 0 and 1 in each data value when a change occurs in the sequential data values, and a run-length encoding algorithm that compresses data by encoding run length of sequential identical data.