Abstract:
PURPOSE: An information transmission method of a sensor network is provided to select a short message service of a broadband network or a bearer service according to the size of transmission object information. CONSTITUTION: A gateway receives sensor network information(S310). The gateway filters, analyzes, and classifies the information(S320). The gateway generates an information report message(S330). The gateway selects a transmission service of a relay network according to the size of the information report message(S340). If an SMS(Short Message Service) of broadband network is selected, the gateway edits the information report message as an SMS message(S350,S360).
Abstract:
PURPOSE: An error and distortion control method for a discharge hour meter in a wireless sensor network is provided to minimize sensor node activation period according to time by distinguishing all events in a sensor network. CONSTITUTION: Message transmission and reception time is measured between a parent sensor node(101) and a child sensor node(103). A first discharge hour meter is synchronized based on the measured transmission and reception time. The first discharge hour meter is corrected based on the result of distribution calculation for the transmission and reception time. A message including information related to a sensor node is constructed. The constructed message is transmitted and received by a sensor network. The sensor network includes the parent sensor node and the childe sensor node.
Abstract:
PURPOSE: A sensor node and a method for configuring a sensor node are provided to guarantee for sensor node hardware configuration required according to a condition and a situation. CONSTITUTION: When shape setting information for configuration of an in-module sensor is changed, a sensor module transmits a sensor setup signal to a node module(S504). The sensor module receives a control signal corresponding to the sensor setup signal from the node module(S505). The sensor module sets an embedded sensor(S506). After the set embedded sensor is activated, the sensor module transmits a completion signal to the node module(S507,S508).
Abstract:
무선 센서 네트워크에서의 선행적 데이터 필터링을 위한 센서노드의 센싱 데이터 전송장치 및 방법이 개시된다. 이 장치 및 방법은 센싱 데이터에 대한 요청 쿼리 및 타이머 파라미터를 수신하고, 수신된 요청쿼리에 따라 센서노드에 감지된 로컬센싱데이터를 검출하고, 요청쿼리를 기초로 타이머 파라미터를 적용한 타이머의 구동시간을 설정하여 설정된 타이머의 구동시간 동안 센서노드의 무선수신범위에 있는 이웃센서노드의 센싱 데이터를 오버히어링하여 로컬센싱데이터가 상기 이웃센서노드의 센싱 데이터와 중복되지 않는 경우에 로컬센싱데이터를 전송한다. 본 발명에 따르면, 데이터 전달 경로를 노드의 에너지 잔량을 고려하여 선정하게 함으로써 노드의 에너지 소진을 분산시켜 네트워크의 수명을 향상시키는 효과가 있다. 무선 센서 네트워크(Wireless Sensor Networks), 데이터 취합(Data Aggregation), 선행적 데이터 필터링(Proactive Data Filtering)