Ajou University Industry Cooperation Foundation

We Duck Cho

Sang Jin Hong

Yun Young Nam

Dong Wook Lee

Jin Seok Lee

Kyoung Su Park

Jain Hoon Kim

Sung Young Jung

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.

Method of routing path in wireless sensor networks based on clusters

There is provided a method of tracking an object in a three-dimensional (3-D) space by using particle filter-based acoustic sensors, the method comprising selecting two planes in the 3-D space; executing two-dimensional (2-D) particle filtering on the two selected planes, respectively; and associating results of the 2-D particle filtering on the respective planes.

Method of object tracking in 3D space based on particle filter using acoustic sensors

There is provided a method for real-time target detection comprising detecting a preprocessed pixel as a target and/or a background, based on a library, and refining the library by extracting a sample from the target or the background.

Method for realtime target detection based on reduced complexity hyperspectral processing

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Seongnam-si, South Korea

We Duck Cho