摘要:
A location-based content-centric networking method for location-based content is provided. The location-based content-centric networking method may include: naming location-based content in such a manner that the name given to the location-based content includes a hierarchical prefix corresponding to information contained in the location-based content; and forwarding the location-based content based on prefix information of the location-based content.
摘要:
There are provided an automatic vision sensor placement apparatus and method which analyze static spatial information in various aspects, calculate priorities of spaces using an agent that models the movement pattern of a user, suggest a method of effectively covering a given space, provide a camera placement method to appropriately install cameras with various levels of performance in a specified space, and calculate the optimal number of cameras to be installed based on installation cost.
摘要:
Provided are a pre-treatment apparatus and method for improving an adhesion of a thin film The pre-treatment apparatus includes: a gas compressor that compresses gas supplied from the outside and contained, and supplies a process gas that is compressed; a powder feeder for supplying a coating powder including a single metal or alloy supplied from the outside and contained; and a spray nozzle through which the process gas supplied from the gas compressor and the coating powder supplied from the powder feeder are cold sprayed on a surface of a base metal on which a thin film is to be deposited so as to form a porous metal coating layer on the surface of the base metal. The pre-treatment method includes: preparing a base metal including a single metal or alloy; preparing a coating powder including powder of one or more single metals or an alloy thereof; forming a porous metal coating layer on a surface of the base metal, on which a thin film is to be deposited, by cold-spraying the coating powder and a process gas to the surface of the base metal; and depositing the thin film on the coating layer, wherein the thin film includes metal.
摘要:
Provided are an apparatus and method for grouping multiple user data and transmitting the grouped data in a multiple antenna system. According to the method, a plurality of user groups are configured, and at least one antenna group is assigned to the plurality of user groups. Then, user signals for each user group are combined using at least one user multiplexing method to generate a user group signal, and a plurality of user group signals are combined using at least one group multiplexing method. Then, the combined user group signal is transmitted to a plurality of users belonging to the plurality of user groups using the at least one antenna group.
摘要:
A routing method for a cluster-based wireless sensor network is provided for improving lifespan of the network and reducing network traffic. A routing method is proposed for a wireless sensor network having a sensor field defined by a plurality of clusters each including a plurality of sensor nodes and a header node, one of the cluster is a head cluster including a sink node. The routing method includes announcing, at least one sensor node which is the sensor node detected an event, the event; requesting, at the sink node, the source node to transmit data required for ubiquitous services; and transmitting, at the at least one source node, data to the sink node. Announcing the event includes relaying, at the at least one source node, a data announcement packet from a source cluster to which the source node belongs to a destination cluster which is arranged along an ith second direction axis through the header nodes of the clusters arranged along a first direction axis of the source cluster. The routing method of the present invention reduces the transmission amounts of data request and data packets, thereby conserving the energy and bandwidth, resulting in improvement of network life time.
摘要:
A cooling system of a vehicle may include a high and low temperature radiators that cool a high and low temperature coolants respectively circulating an engine and passing a water cooled intercooler and a low exhaust gas recirculation cooler of a turbo charger, a cooling fan that blows air to the high temperature radiator and the low temperature radiator, a high temperature coolant pump that pumps the high temperature coolant, a low temperature coolant pump that pumps the low temperature coolant, and a control portion that controls the high temperature coolant pump, the low temperature coolant pump, and the cooling fan according to driving conditions of the vehicle and environmental conditions. A controlling method may include detecting driving conditions of the vehicle and environmental conditions, setting an operating target for the cooling system and/or a lubrication system, and determining operating conditions for the cooling system and/or the lubrication system.
摘要:
A system for supporting the diversity of a ubiquitous computing environment according to the present invention has a message bus including a message broker managing an intermediary role of delivering an actual message between the subsystems and a messaging adaptor managing an interface function between the message broker and the subsystems, wherein the messaging adaptor is installed in the subsystems and includes a first adaptor including a first application port for interfacing with the subsystems, and a second adaptor including a second application port for interfacing with the first adaptor and the broker port operating with the message broker.
摘要:
Provided are an apparatus and a method for tracking movements of objects to infer a topology of a network of multiple cameras. The apparatus infers the topology of the network formed of the multiple cameras that sequentially obtain images and includes an object extractor, a haunting data generator, and a haunting database (DB), and a topology inferrer. The object extractor extracts at least one from each of the obtained images, for the multiple cameras. The haunting data generator generates appearing cameras and appearing times at which the moving objects appear, and disappearing cameras and disappearing times at which the moving objects disappear, for the multiple cameras. The haunting DB stores the appearing cameras and appearing times and the disappearing cameras and disappearing times of the moving object, for the multiple cameras. The topology inferrer infers the topology of the network using the appearing cameras and appearing times and the disappearing cameras and disappearing times of moving objects. Therefore, the apparatus accurately infers topologies and distances among the multiple cameras in the network of the multiple cameras using the cameras and appearing and disappearing times at which the moving objects appear and disappear. As a result, the apparatus accurately track the moving objects in the network.
摘要:
Disclosed is a smart scheduler reflecting change of situation. The smart scheduler reflecting change of situation includes an interface unit and an alarm time decision unit. The interface unit both sends and receives contextual information to/from an external service-providing source. The alarm time decision unit reflects the contextual information that is received and updated from the external service-providing source, so that it may decide a final alarm time for performing a fixed schedule, even if any situation change occurs. The smart scheduler has the advantage that the determined schedule may be performed in the time in which a user designates, by differently setting up the alarm time according to the situation changes, whatever situation change brings about.
摘要:
A small broadband monopole antenna including a shorted patch and a probe with a strip line that are electromagnetically coupled with each other. The probe with a strip line has a length of about λ/4, where λ is a wavelength. The strip line may be one of a spiral type, a folded type and a helix type. A resonance frequency of the antenna can be adjusted by varying the inductance and the capacitance of the resonance circuits. In addition, a double-band antenna or a single-band antenna having a broad bandwidth can be designed in accordance with application purpose of the antenna.