Patent application number | Description | Published |
20100205596 | METHOD FOR UPDATING FIRMWARE OF SENSOR NODES ON THE WIRELESS SENSOR NETWORK - A method for updating firmware of a plurality of nodes constituting a wireless sensor network is disclosed. The wireless sensor network includes a server, a gateway and the plurality of nodes. The firmware to be updated is transmitted from the server through the gateway to an uppermost node. The firmware is sequentially transmitted to the plurality of nodes from the uppermost node to a lowermost node using wireless communication, and the respective nodes, which have received the firmware, record the firmware in their own memory. When the recording of the firmware is completed in all the nodes, boot programs of the respective nodes are run and the firmware, stored in the memory, is recorded in program memory, the firmware recorded in the nodes are executed, and the nodes constitute a new network while communicating with the peripheral nodes thereof. | 08-12-2010 |
20100208637 | METHOD OF TRANSMITTING/RECEIVING DATA FOR WIRELESS SENSOR NETWORK AND SENSOR NODE - A method of transmitting and receiving data for a wireless sensor network system is disclosed. Transmission and reception intervals for a small amount of data and for a large amount of data are set. A sensor node checks data requested to be transmitted. If the data is a small amount of data, the sensor node transmits the data to a higher or lower communication node during the transmission interval for a small amount of data. If the data is a large amount of data, the sensor node divides the large amount of data and then transmitting resulting data to the higher or lower communication node during the transmission interval for a large amount of data. The sensor node receives the small amount of data during the reception interval for a small amount of data and the large amount of data during the reception interval for a large amount of data. | 08-19-2010 |
20110001612 | COMMUNICATION METHOD FOR A MOBILE SENSOR NODE IN A WIRELESS SENSOR NETWORK - A communication method for a mobile sensor node in a wireless sensor network includes: in a state that the mobile sensor node performs synchronization by a message reception interrupt from a parent sensor node and determines an uplink active duration and a downlink active duration, transmitting a message to the parent sensor node in the transmitting duration of the uplink active duration, receiving and processing messages from the parent sensor node and sensor nodes linearly connected around the parent sensor node in the receiving duration of the uplink active duration, and resetting a new parent sensor node using the received signal strength indications RSSIs of the received messages; and transmitting a message to the parent sensor node in the transmitting duration of the downlink active duration, checking whether or not a message is received from the parent sensor node in the receiving duration of the downlink active duration, if the message is not received from the parent sensor node, determining that time synchronization fails and resetting a new parent sensor node, and if the message is received from the parent sensor node, performing time synchronization according to a message reception interrupt from the parent sensor node. | 01-06-2011 |
20110038252 | DOUBLE LINKED WIRELESS SENSOR NETWORK BEING CAPABLE OF BIDIRECTIONAL COMMUNICATION AND METHOD THEREOF - Provided are a double linked wireless sensor network capable of performing bidirectional communication and a method of transmitting and receiving data. In each of nodes constituting the wireless sensor network, an active duration and an inactive duration are alternately repeated, and the active duration is configured to include an upstream duration, an intermission duration, and a downstream duration. Each of the downstream duration and the upstream duration is configured to sequentially include a second receive slot, a second receive processing slot, a first receive slot, a first receive processing slot, a transmit slot, a transmit processing slot, a first acknowledge slot, a first acknowledge processing slot, a second acknowledge slot, and a second acknowledge processing slot, and wherein bidirectional communication can be performed between the sink node and the terminal node in a single period of the active duration. In the wireless sensor network, a transmit processing duration TXP is maintained in a receiving mode capable of receiving data from other nodes, so that a new node can be easily joined as a terminal node or an intermediate node. In addition, in the wireless sensor network, each of the upstream duration and the downstream duration is provided with consecutive two receiving durations, so that, although links to consecutive two nodes are disconnected, it is possible to simply recover the links. | 02-17-2011 |
20110047538 | METHOD FOR UPDATING FIRMWARE OF SENSOR NODES ON A WIRELESS SENSOR NETWORK AND FIRMWARE UPDATER USING FOR THE SAME METHOD - Provided is a firmware updating method for a new node in a wireless sensor network including a plurality of nodes. The firmware updating method for the new node (a) a new node searching for neighbor nodes located within a predetermined distance; (b) the new node designating a parent node among the searched neighbor nodes; (c) in the case where the plurality of nodes include a join receiving state for joining the new node to the wireless sensor network, the designated parent node and the new node establishing a communication link by using the join receiving state; (d) the parent node transmitting firmware to the new node through the established communication link; and (e) the new node receiving the firmware from the parent node, updating existing firmware with the received firmware, and driving the updated firmware to be jointed to the wireless network. In the case where the new node is to be joined to the wireless sensor network, it is possible to directly update the firmware of the new node on the spot without recalling the node to a factory. | 02-24-2011 |
20110069611 | WIRELESS SENSOR NETWORK - Provided is a wireless sensor network including: a plurality of sensor nodes connected linearly; a sink node connected to the uppermost node among the sensor nodes; a control server; a gateway connected between the sink node and the control server to transmit and receive data; and a plurality of relay gateways. In the case where the plurality of the sensor nodes are divided into a predetermined number of subgroups, the sensor nodes located at the highest levels in the divided subgroups and which are connected to the relay gateways are designated as relay nodes. In the case where an amount of data stored in the relay node exceeds a predetermined threshold value, the relay node transmits the stored data through the connected relay gateway to the control server. Accordingly, in the case where the data of the sensor nodes are increased, it is possible to minimize a problem in that the increased data are lost during transmission. | 03-24-2011 |
20110131010 | LAP TIME MEASUREMENT SYSTEM - Disclosed herein is a lap time measurement system. The lap time measurement system includes a management server and sensor nodes deployed at respective measurement points. Each of the sensor nodes includes a Global Positioning System (GPS) reception unit, a sensor unit for detecting whether a moving object has passed through a corresponding measurement point, a communication unit for transmitting and receiving data to and from the management server, and a control unit for updating an internal timer based on the time information, determining time data of the internal timer to be passage time data, and transmitting the determined passage time data. The management server receives the passage time data from the respective sensor nodes, calculates times at which the moving object has passed through the measurement points and lap times for respective measurement intervals based on the received passage time data, and provides the calculated times and calculated lap times. | 06-02-2011 |
20120147731 | APPARATUS OF MULTIPLEXING DATA TRANSMISSION PATH FOR WIRELESS SENSOR NETWORK - The present invention is to provide a method and apparatus for multiplexing a sync node and a gateway of a wireless sensor network, which is capable of allowing communication of the wireless sensor network to be normally performed by multiplexing paths of the sync node and the gateway of the wireless sensor network even in the case where any one of the sync node and the gateway abnormally operates and by transmitting upstream data and downstream data through a path selected among the duplexed paths according to characteristics of the wireless sensor network. | 06-14-2012 |
20130214917 | METHOD AND SYSTEM FOR PROVIDING A VEHICLE THEFT PREVENTION SERVICE - A vehicle theft prevention service method and system is capable of estimating theft of a vehicle even in the case where such a two-wheeled vehicle can be moved without start-up to be stolen and a vehicle theft prevention service method and system where a user is informed of location of a vehicle at the time of estimating theft of the vehicle, so that it is possible to accurately determine the theft based on the location of the vehicle at the time of estimating the theft of the vehicle. The vehicle theft prevention service system includes an electronic key and a theft monitoring device. The theft monitoring device is installed in a vehicle and determines that the vehicle is in a theft-estimated state and transmits an alarm message if a sensed acceleration value obtained by sensing a movement of the vehicle is a predetermined value or more. The electronic key outputs an alarm if the alarm message is received. Herein, the external apparatus may be a user terminal or a server. | 08-22-2013 |
20130329719 | TERMINAL NODE DEVICE AND WIRELESS SENSOR NETWORK SYSTEM USING THE TERMINAL NODE DEVICE - Provided is a terminal node device including: a communication module communicating with an external sink node device and another terminal node device; sensor modules; and a control unit allowing the terminal node device to be operated while allowing the terminal node device to transition into one of the initial, synchronous, and leave states. In the initial state, the control unit scans a received message; if a beacon message is received from a sink node device, the control unit transitions into the synchronous state; and if not for a predetermined time, the control unit transitions into the leave state. Accordingly, if a beacon message is received from the sink node device, the terminal node device transitions into the synchronous state to constitute a server-based wireless sensor network; and if not, the terminal node device transitions into the leave state to constitute an independent sensor network. | 12-12-2013 |
20140099066 | CONTENT PROCESSING APPARATUS FOR PROCESSING HIGH RESOLUTION CONTENT AND CONTENT PROCESSING METHOD THEREOF - A content processing apparatus is provided, which includes an inputter configured to receive an input of high resolution content, a data processor configured to generate video frames by processing the high resolution content, and a controller configured to control the data processor to configure an object that corresponds to the high resolution content as an object for low resolution and to add the object to the video frame if an output resolution of a display panel to display the video frames is a low resolution. | 04-10-2014 |
20140119712 | RECORDING MEDIUM, REPRODUCING DEVICE FOR PROVIDING SERVICE BASED ON DATA OF RECORDING MEDIUM, AND METHOD THEREOF - A reproducing device is provided. The reproducing device includes: a driver configured to load a recording medium in response to the recording medium being attached, wherein the recording medium records video data and additional information encoded according to a High Efficiency Video Coding (HEVC) method; a data processor configured to process the video data; a controller configured to provide a service corresponding to the additional information. The service includes at least one of a trick play service, an interested region enlargement service, and an object adjusting service. | 05-01-2014 |
Patent application number | Description | Published |
20100296793 | RECORDING MEDIUM FOR STORING INFORMATION FOR STILL PICTURE, RECORDING AND/OR REPRODUCING METHOD AND APPARATUS THEREFOR - A recording medium for storing information for still pictures, and a recording/reproducing method and apparatus therefor, stores data for a plurality of still pictures and audio data added thereto in one file or a space having a logically one-dimensional order, rather than in each file, and still picture group information for separating the still picture data into a predetermined maximum number of groups in order to manage the still pictures at a group level. The still picture group information includes general information for still picture groups, and information for still pictures in each still picture group. The general information for each still picture group includes the start position of a first still picture in each still picture group, and the information for still pictures in each still picture group includes the sizes of video data and audio data for each still picture. | 11-25-2010 |
20100310233 | RECORDING MEDIUM FOR STORING INFORMATION FOR STILL PICTURE, RECORDING AND/OR REPRODUCING METHOD AND APPARATUS THEREFOR - A recording medium for storing information for still pictures, and a recording/reproducing method and apparatus therefor, stores data for a plurality of still pictures and audio data added thereto in one file or a space having a logically one-dimensional order, rather than in each file, and still picture group information for separating the still picture data into a predetermined maximum number of groups in order to manage the still pictures at a group level. The still picture group information includes general information for still picture groups, and information for still pictures in each still picture group. The general information for each still picture group includes the start position of a first still picture in each still picture group, and the information for still pictures in each still picture group includes the sizes of video data and audio data for each still picture. | 12-09-2010 |
20120014666 | RECORDING MEDIUM FOR STORING INFORMATION FOR STILL PICTURE, RECORDING AND/OR REPRODUCING METHOD AND APPARATUS THEREFOR - A recordable and/or rewriteable recording medium for storing still picture data, and recording and/or reproducing method and apparatus therefor. The recording medium stores still picture group information for grouping a plurality of still pictures in order to manage the still picture at a group level, and stores audio group information for grouping additional audio data added to the still picture data after the still picture data are recorded. Therefore, large-capacity still picture data and additional audio data added thereto can be recorded using a minimum amount of management information. Further, during reproduction, data can be displayed and edited in units of the respective still pictures. Also, it is possible to cope with after-recording of the audio data. | 01-19-2012 |
20120014667 | RECORDING MEDIUM FOR STORING INFORMATION FOR STILL PICTURE, RECORDING AND/OR REPRODUCING METHOD AND APPARATUS THEREFOR - A recordable and/or rewriteable recording medium for storing still picture data, and recording and/or reproducing method and apparatus therefor. The recording medium stores still picture group information for grouping a plurality of still pictures in order to manage the still picture at a group level, and stores audio group information for grouping additional audio data added to the still picture data after the still picture data are recorded. Therefore, large-capacity still picture data and additional audio data added thereto can be recorded using a minimum amount of management information. Further, during reproduction, data can be displayed and edited in units of the respective still pictures. Also, it is possible to cope with after-recording of the audio data. | 01-19-2012 |
20120014668 | RECORDING MEDIUM FOR STORING INFORMATION FOR STILL PICTURE, RECORDING AND/OR REPRODUCING METHOD AND APPARATUS THEREFOR - A recordable and/or rewriteable recording medium for storing still picture data, and recording and/or reproducing method and apparatus therefor. The recording medium stores still picture group information for grouping a plurality of still pictures in order to manage the still picture at a group level, and stores audio group information for grouping additional audio data added to the still picture data after the still picture data are recorded. Therefore, large-capacity still picture data and additional audio data added thereto can be recorded using a minimum amount of management information. Further, during reproduction, data can be displayed and edited in units of the respective still pictures. Also, it is possible to cope with after-recording of the audio data. | 01-19-2012 |
Patent application number | Description | Published |
20100027434 | METHOD AND DEVICE OF MEASURING COMMUNICATION QUALITY FOR CONSTRUCTING WIRELESS SENSOR NETWORK - Provided is a communication quality measurement method and a portable communication quality measurement device for wireless sensor network. configuration. The communication quality measurement method for wireless sensor network configuration includes: a portable communication quality measurement device transmitting a communication quality detection request message to one or more of communication nodes in a wireless sensor network system at a location prepared for new installation; the one or more of the communication nodes in the wireless sensor network system receiving the communication quality detection request message to detect transmission quality information on the communication quality detection request message and adding the detected transmission quality information to a respond message to transmit the respond message to a next communication node; and the portable communication quality measurement device receiving the respond message transceived between the communication nodes to detect reception quality information and displaying the detected reception quality information and transmission quality information included in the respond message. | 02-04-2010 |
20100054165 | DATA TRASNMITTING AND RECEIVING METHOD AND COMMUNICATION SYSTEM THEREOF - A data transmitting and receiving method and a communication system using the method are provided. A transmitting node generates a plurality of data packets by dividing a large-sized data and transmits the data packets to a receiving node at one time, and after that, re-transmits only the non-received data packet(s) which is not received by the receiving node. Accordingly, the number of response packets which the receiving node is to transmit can be reduced, so that it is possible to increase transmission rate. | 03-04-2010 |
20100097988 | WIRELESS SENSOR NETWORK WITH LINEAR STRUCTURE BEING CAPABLE OF BIDIRECTIONAL COMMUNICATION AND METHOD THEREOF - Disclosed is a wireless sensor network with a linear structure capable of bidirectional communication. The wireless sensor network includes a plurality of nodes linearly connected from a sink node to a terminal node by connecting each node to a single upper-level node and a single lower-level node, each node has an active period for transmitting/receiving data to/from its upper-level node and lower-level node, the active period includes a downstream duration for transmitting data/commands from the sink node to the terminal node and an upstream duration for transmitting data/commands from the terminal node to the sink node, and each of the upstream and downstream durations sequentially includes RX, TX, and ACK intervals, so that bidirectional communication between the sink node and the terminal node can be performed within a single active period. | 04-22-2010 |
20100118736 | Routing method and wireless network system - A routing method of a wireless network system is provided. Paths of the wireless network system are divided into down-stream and up-stream paths. The up-stream paths are reset for each period, or whenever a network is changed, or whenever transmission of data fails more than a predetermined number of times. Accordingly, it is possible to secure an average lifetime of a wireless network system by previously preventing a bottleneck from occurring at a specific node, increase a transmission speed of data by reducing the hop count to the sink node connected to the information collector, and reduce power consumption of a battery. | 05-13-2010 |
20100218683 | GAS DETECTING APPARATUS AND AIR PURIFICATION SYSTEM - Provided are an indoor gas detecting apparatus and an indoor air purification system. The indoor gas detecting apparatus includes: a gas sensor unit composed of a plurality of gas sensors and a fine dust sensor; a controller controlling overall operations; a display unit; an alarm unit; and a communication unit transmitting/receiving data to/from an external apparatus. If a detected gas amount exceeds a predetermined permission level of each gas, the controller transmits an operation signal to an external automatic gas blocking apparatus or an external air purification apparatus so as to operate the automatic gas blocking apparatus or the air purification apparatus. Accordingly, not only fresh indoor air can be maintained but also an explosion or a fire can be prevented. | 09-02-2010 |