APPARATUS FOR CONTROLLING ENERGY SUPPLY OF UBIQUITOUS SENSOR NETWORK SOLAR CELL STREET LIGHT

摘要

PURPOSE: A power supply control device of a ubiquitous sensor network (USN) solar street light is provided to improve energy management of a sensor node by effectively switching an input power source. CONSTITUTION: A rechargeable battery part is charged by receiving electric energy form a solar cell part. A communications part (350) transmits and receives data with an adjacent street light. A controller (350) determines an active mode or a sleep mode according to a driving state of a lamp. The controller delivers each state signal to a relay circuit part (330). The relay circuit part selectively switches in the communications part or the lamp according to the state signal. [Reference numerals] (300) Solar cell part; (310) Voltage detection part; (320) Recharging battery part; (330) Relay circuit part; (340) Communications part; (350) Controller; (360) Lamp