Abstract:
An automatic lighting system using 3-DOF robotic lamps and a laser scanner is proposed in this paper. The 3-DOF robotic lamp, which is designed with a spherical parallel mechanism with a unique forward kinematic solution, has a tilting motion to track a person and zoom-in and zoom-out motions to control the light intensity. In order to minimize the dynamic load, three actuators are installed at the base frame, and a counterbalancing design is considered. The positions of people are detected by a laser scanner, and the Kalman filter and a data association algorithm are applied in order to track the positions of people accurately. Therefore, multiple robotic lamps can track and illuminate each person continuously. We demonstrate experimentally that three robotic lamps mounted on the ceiling illuminate three people independently and control the intensity of the light according to the distance between a person and the robotic lamp.
Existing System:
In the existing system the lights are controlled manually by humans. Hence there will be a time lag in the operation of the light sources. There is no automatically control is available thus the way we go for the proposed system.
Proposed System: In the proposed system the lights are automatically switched on and off and their movements are controlled using a controller. In this system the PIR sensor are used to detect the presence of humans. And a stepper motor is used to control the motion of the light source. One PIR sensor is used to sense the presence of humans on one side and another PIR sensor is used to detect the presence on the other side of the room. When the PIR detects the humans, the light source on the one side of the room will rotate at 180 degree continuously till the human is present on one side of the room. This continues on the other side of the room in a similar manner.