Intelligent Desk Lamp with Real-time Environmental Sensing for Enhanced Energy Efficiency and User Interaction

Abstract

With the rapid advancement of electrical technology and the growing demand for a more convenient and efficient lifestyle, an intelligent desk lamp has become a vital component of modern living. However, the functionality of most desk lamps currently available in the market is primarily restricted to basic flexible light control. This paper introduces an intelligent desk lamp control system that, like many existing products, enables flexible lighting control. The distinguishing feature of the proposed system is its capability to perform real-time detection of surrounding human presence, natural light levels, and other environmental parameters to enhance energy efficiency. Specifically, the desk lamp automatically turns off when no one is present and activates only under low natural light conditions. Additionally, the system can be operated via an infrared remote control and displays time and date parameters on an LCD screen.To enhance data processing speed, the system employs the STC89C51 chip as the primary control unit in the hardware circuitry. The well-designed circuit structure integrates the main control microprocessor with an LCD1602 display, a clock chip, an LS5V photosensitive sensor, and a pyroelectric infrared sensor. This configuration facilitates seamless communication with infrared remote control devices, ensuring the overall efficiency of the hardware system.