Korea Electronics Technology Institute

Tai Gil Kwon

Yong Seong Kim

Jin Woong Cho

Yong Seok Lim

Yongju Park

Hae Yong Jung

Proposed are a method for data interworking between an application and an IoT device, and a middleware device for performing the method. The method may include generating matching information between an IoT device and a network protocol used by the IoT device based on IoT device profile information, and analyzing a request message received from an application device to extract IoT device information of a request target. The method may also include generating a request packet conforming to a network protocol used by a target IoT device based on the request message, the IoT device information of the target request, and the matching information, and transmitting the request packet to the target IoT device. The method may further include converting a response packet transmitted by the target IoT device in response to the request packet into a response message, and transmitting the response message to the application device.

Method for data interworking between application and IoT device and middleware device for performing the method

A wireless transmission scheduling method is proposed. The method may be a synchronous media access control (MAC) wireless transmission scheduling method optimized for a user datagram protocol (UDP) of a personal wireless network-based data transmission system. The method may include setting a superframe period, a beacon period, and a contention period by a master station in a network. The method may also include calculating transmission periods of one or more slave stations participating in the network and a transmission period of the master station. The method may further include transmitting information about the calculated transmission periods of the one or more slave stations to the one or more slave stations participating in the network. The method may further include transmitting data by the one or more slave stations and the master station in the transmission periods assigned to the one or more slave stations and the master station.

Wireless transmission scheduling method and apparatus based on unreliable network

The present invention provides a system tar wireless power transmission, wherein the system is a system for wireless power transmission detecting a foreign object, including a power transmitting coil for transmitting AC power, a power receiving coil for receiving the AC power transmitted from the power transmitting coil wherein the power receiving coil is spaced apart from the power transmitting coil, and a detection circuit for detecting a foreign object located between the power transmitting coil and the power receiving coil wherein a first resistor and a first detection coil connected in series, and a second resistor and a second detection coil connected in series are connected in parallel, and wherein at least one of the first detection coil and the second detection coil is disposed between the power transmitting coil and the power receiving coil.

System for wireless power transmission

Provided is a method for determining network link quality between a master station and slave stations in a wireless network system having a synchronous superframe structure. The method for determining link quality in a wireless network system includes determining whether the current station is a master or a slave, when the current station is a master, comparing a time value during which the latest packets were received from slaves and a maximum time value during which the slaves are not obliged to exchange packets with the master after accessing a network, and determining link quality between the slaves and the master according to the comparison result.

Method for determining link quality in wireless network system

The present invention relates to a system and method for changing a wireless personal area network (WPAN) channel when the quality of communication is degraded due to a change of a wireless environment. The system according to the present invention includes slaves configured to transmit/receive data, and a master connected to the slaves and configured to obtain communication state information of the slaves and select an adjacent channel search slave from among the slaves according to the obtained communication state information of the slaves.

Growing community of inventors

Goyang-si, South Korea

Tai Gil Kwon