SENSOR NODE DEVICE AND WIRELESS SENSOR NETWORK SYSTEM, AND A COLLISION INFORMATION TRANSMISSION METHOD USING THE SAME

摘要

PURPOSE: A sensor node device and a wireless sensor network system, and a collision information transmission method using the same are provided to effectively warn other vehicles driving on a road about the occurrence of an accident ahead by enabling sensor node devices around the collision site to emit light or flash on and off.;CONSTITUTION: A sensor part(102) includes a sensor detecting a vehicle collision occurred to a guardrail. A control part(104) transmits collision occurrence information due to a collision through a communications part. A light-emitting part emits light. If a collision is detected, a light-emitting control part(105) makes the light-emitting part emit light or flash on and off according to the control of the control part. If a blink-triggering message is received through the communications part, the control part makes the light-emitting part flash on and off through the light-emitting control part.;COPYRIGHT KIPO 2013;[Reference numerals] (100) Sensor node device; (101) Power supply part; (1011) Solar cell; (1012) Charging part; (102) Sensor part; (1021) Impact detection part; (1022) Illumination sensor; (103) Communication sensor; (104) Control part; (105) Light-emitting control part; (106) Light-emitting part