Abstract:
A wireless sensor network system comprises a sink node device and general node devices. The sink node device transmits a beacon message in a predetermined transmitting section. The sink node device receives sensing messages from the outside in each predetermined receiving section and transmits the sensing messages to the outside. The sink node device reads the sensing data stored in an internal memory unit; generates the sensing messages; and transmits the same to the outside. The sink node device senses the existence of a sensor module in the predetermined sensing section. The sink node device generates the sensing data including a sensing value and stores the same in the internal memory unit. The general node devices perform time synchronization by receiving the beacon message in the predetermined receiving section corresponding to the transmitting section of the sink node device. The general node devices read the sensing data stored in the internal memory unit in the predetermined transmitting section corresponding to one of the receiving sections of the sink node device; generate the sensing message; and transmit the sensing message to the sink node device. The general node devices sense the existence of the sensor module in the predetermined sensing section; generate the sensing data including the sensing value; and store the same in the internal memory unit. The general node devices are in a sleep mode during a section excluding the receiving section, the transmitting section, and the sensing section. When the beacon message is not received, the general node devices are transited to a rib state. The general node devices in the rib state sense the existence of the sensor module in the predetermined sensing section; output emergency warning while broadcasting an emergency warning message to the outside when the sensing value exceeds a predetermined emergency warning limit; and are in the sleep mode during a section excluding the sensing section. [Reference numerals] (100) Gateway;(102) Server;(104) Database;(AA) Server based sensor network system;(N5) Independent sensor network system
Abstract:
PURPOSE: An acoustic system, an acoustic transmitter, an acoustic transmitting method, and a computer-readable recording medium are provided to generate acoustic data compatible with a 2D image and a 3D image while minimizing the bandwidth. CONSTITUTION: A parameter extractor(111) extracts 3D acoustic parameters(SP3) from the received 3D image data(PI3). An encoder(112) generates a 2D acoustic data stream(SIS2) by encoding 2D acoustic data(SI2) corresponding to 2D image data. A packetizing device(114) generates a compatible stream(CS) by combining the 2D acoustic data stream with the 3D acoustic parameters. A 2D acoustic regenerator(150) regenerates a 2D sound based on the 2D acoustic data extracted from the compatible stream. A 3D acoustic regenerator(160) regenerates a 3D sound based on the 3D acoustic data and the 3D acoustic parameters included in the compatible stream. [Reference numerals] (111) Parameter extractor; (112) Encoder; (114) Packetizing device; (152,162) Decoder; (154,164) Depacketizing device; (156) 2D acoustic generator; (166) 3D acoustic generator; (AA) 2D acoustic; (BB) 3D acoustic; (CC) Channel
Abstract:
PURPOSE: A route multiplexing apparatus of a WSN(Wireless Sensor Network) is provided to offer the normal communication of the WSN regardless of a sync node and a gate way of the WSN by transmitting control signals to a control module. CONSTITUTION: A control module(208) selectively transmits data provided by a master or a slave apparatus(210,212) to a system according to a control signal provided by the master and the slave apparatus. The master apparatus monitors operating states of the slave apparatus and provides the control signal to the control module in an activation state. When the slave apparatus is operated in a deactivation state, the master apparatus provides a reset signal to the slave apparatus.
Abstract:
PURPOSE: An apparatus and a method for measuring snowfall are provided to accurately measure the snowfall based on a light emitting element regardless of weather and time and to omit electric wires for supplying electric power by using solar energy. CONSTITUTION: A system for measuring snowfall includes a controlling center, a snowfall measuring unit, and a wireless access point. The controlling center is connected based on Internet network or mobile radio communication network. The snowfall measuring unit is composed of a measuring part(200B) and an observing part(200A). A light emitting diode is formed at one side of a scale on the measuring part and measures snowfall based on self generated power using solar light. The light emitting diode is turned on/off based on a controlling signal from the controlling center to the snowfall measuring unit. The wireless access point relays signal transmissions between the snowfall measuring unit and the controlling center.
Abstract:
본 발명은 이동형 건강 관리 장치를 이용한 건강 모니터링 방법 및 그 시스템에 관한 것이다. 본 발명에 따른 이동형 건강 관리 장치를 이용한 건강 모니터링 방법은, 건강 관리 서버로부터 사용자에 대한 건강 정보 및 운동 처방 정보를 수신하는 단계, 사용자가 운동 중인 운동 기구로부터 측정된 운동량을 수신하는 단계, 측정된 운동량을 운동 처방 정보와 비교하여 분석하는 단계, 그리고 분석 결과에 대응하여 상기 운동 기구의 운동 강도를 조절하는 단계를 포함한다. 이와 같이 본 발명에 의하면, 이동형 건강 관리 장치를 이용하여 사용자의 과도한 운동으로 인하여 위급 상태가 발생하는 것을 방지할 수 있으며, 사용자의 건강 상태에 따라서 사용자가 적정한 운동을 진행할 수 있도록 운동 강도를 조절할 수 있다.
Abstract:
PURPOSE: An industrial disaster monitor system through link with a protocol type field sensor node apparatus for multiple processing and a monitoring method are provided to transmit situations sensed in real time in the field accurately and efficiently, and to improve reliability as to the industrial disaster monitoring by using a protocol of a multiple processor mode. CONSTITUTION: A control server(110) controls each server consisting of a system, monitors situations of industrial sites, processes processing situations of external devices interlocking with the system and proceeds to guide and control depending on the recognized situations of industrial sites. A communications server(120) receives sensing data determined based on a protocol transmitting system, which is sensed by a plurality of field sensor node apparatus installed predicted dangerous areas of industrial sites has an enhanced efficient disaster monitoring according to a control of the control server. A distinction server(130) treats each sensing data inputted from a plurality of field sensor node apparatus on the basis of disaster monitoring conditions controlled by the control server and determined in the system and determines conditions of the industrial sites. A database server(140) classifies the sensing data transmitted from a plurality of field sensor node apparatus through the communications server and make a database for various data processed to recognize disasters of the industrial sites treated in the system.
Abstract:
PURPOSE: A data processing apparatus and data processing method, using fat file system capable of fast file recovery are provided to recover the deleted file using FAT file system capable of high speed file recovery. CONSTITUTION: The name and deletion command of the delete file are inputted through the user input portion(20). In case the file is deleted from the storage(10), the recovery area storing the entry value of the FAT area corresponding to the delete file in which the controller(30) is deleted from the storage. The controller uses the FAT file system and data of the storage. In case the entry value of the FAT area which copes with the deleted file when being restored to normal the delete file empties, the controller stores the entry value corresponding to the delete file from the recovery area in the entry of the FAT area.
Abstract:
본 발명은 양방향 통신이 가능한 선형 구조를 갖는 무선 센서 네트워크 및 그 방법에 관한 것이다. 상기 무선 센서 네트워크는 모든 구성 노드들이 하나의 상위 노드 및 하나의 하위 노드와 연결되도록 하여 싱크 노드부터 단말 노드까지 선형적으로 연결되며, 각 노드는 기설정된 시간 간격을 갖는 활성 구간과 비활성 구간이 순차적으로 반복되며, 상기 활성 구간은 싱크노드로부터 단말 노드로의 데이터/명령어를 전송하는 다운링크 활성 구간, 휴지 구간, 단말 노드로부터 싱크 노드로의 데이터/명령어를 전송하는 업링크 활성 구간을 구비하며, 상기 다운링크 활성 구간 및 업링크 활성 구간은 각각 RX, TX, ACK가 순차적으로 구성되어, 활성 구간의 단일 주기내에서 싱크 노드와 단말 노드간의 양방향 통신을 수행할 수 있다. 본 발명에 의하여, 선형 구조를 갖는 무선 센서 네트워크에서 활성 구간의 단일 주기내에서 싱크 노드와 단말 노드간의 양방향 데이터 송수신이 가능해진다. 무선 센서 네트워크, 선형 구조
Abstract:
A real-time remote monitoring system based on a wireless sensor network is provided to perform bidirectional communication with each sensor node of the wireless sensor network and to transmit measuring data measured from each sensor node and image data to a center management server. A control module(220) controls the whole operation of a sensor node. A sensing module(210) senses special material or component or a particular state. A communications module(230) transmits and receives the other sensor node and data packet. A control module transmits measurement data sensed by the sensing module to the high node of the wireless sensor network and retransmits the data packet transmitted from the high node.
Abstract:
A firmware update method for nodes of a wireless sensor network is provided to be capable of changing firmware of each node by wirelessly transceiving data, therefore the firmware can be easily and quickly changed, consequently it is easy for function addition and maintenance. Firmware to be updated to a top node via a gateway from a server is transmitted(S10). The firmware is sequentially transmitted by using wireless communication to the lowest node from the top node, and each node records the firmware in self memories(S20). When the recording is completed, boot programs of each node are driven to record the stored firmware in program memories, and the recorded firmware is executed to make each node communicate with peripheral nodes to configure a new network(S40-S60).