Electronics and Telecommunications Research Institute

Byeong Cheol Choi

Young Il Kim

Geon Min Yeo

Dae Geun Park

Sun Hwa Lim

Soon Yong Song

Hyo Chan Bang

Jae Hong Ruy

Tae Joon Park

Wun Cheol Jeong

Dae Won Kim

In Hwan Lee

Hong Il Ju

Bo Heung Chung

Byung Bog Lee

Jin Yong Lee

Myung Nam Bae

Kye Seon Lee

Boo Sun Jeon

Hyun Sook Cho

Dong Wook Kang

Nae Soo Kim

Ik Kyun Kim

Bong Soo Kim

Jae Deok Lim

Se Han Kim

Byung Ho Chung

Jong-Arm Jun

Bong Wan Kim

Dong Il Seo

Seung Wan Han

Kyo Hoon Son

Juderk Park

Chang Won Lee

Joong Yong Choi

Kwang Sik Kim

Provided is a diversity antenna and an electronic device including the same. The diversity antenna according to various example embodiments includes a plurality of radiation elements having a tubular shape with apertured upper and lower portions, and a connection plate configured to connect the plurality of radiation elements to each other, the plurality of radiation elements is arranged in a vertical direction coaxially, and the connection plate includes an aperture configured to allow a power supply line to pass through.

Diversity antenna and electronic device including the same

An electronic device includes a peripheral device, a processor, an interrupt controller configured to manage interrupts generated by the peripheral device and the processor on the basis of a register, and a virtualizer, wherein the virtualizer may be configured to virtualize a portion of the processor and a portion of the at least one peripheral device to generate a first partition, generate first interrupt information corresponding to an interrupt usable in the first partition, generate first processor information corresponding to a portion of the processor usable in the first partition, check whether a configuration of the register is related to at least one of the first interrupt information and the first processor information when the register is configured by the first partition, and allow the configuration of the register when the configuration of the register is related to the at least one information.

Electronic device, interrupt configuration control method, and storage medium

Disclosed is a system for performing key management of an in-vehicle network. The key management system of the in-vehicle network includes a reception unit configured to receive a shared secret key of a central gateway and a domain gateway, a memory configured to store a program for performing key management of the in-vehicle network using the shared secret key, and a processor configured to execute the program. The processor generates a secret key to be stored in a node of the in-vehicle network using the shared secret key and a unique ID of the node.

System for key control for in-vehicle network

A method of transmitting control information by an end node in a wireless communication system supporting multi-channel transmission includes: transmitting control information to a center node on a first channel among multiple channels within a control period of a wireless frame when the first channel is in an idle state; transmitting the control information to the center node on a second channel when the first channel is not in the idle state and the second channel is in the idle state, the second channel being selected from channels other than the first channel among the multiple channels; and transmitting the control information to the center node in a subsequent wireless frame when the second channel is not in the idle state.

Method and device for operation based on multiple channels in sensor network

A logistics information processing server includes a data processor configured to receive environment sensing data collected from at least one environmental sensor disposed in a cargo storage device in which at least one cargo is stored and cargo related information collected from a cargo tag attached to the at least one cargo, and to perform processing by classifying the environment sensing data and the cargo related data into cargo storage environment data, cargo information, and transportation environment information according to data attributes; and a logistics trust index generator configured to generate a logistics trust index indicating a degree of influence exerted on the quality of the cargo from the cargo storage environment data, cargo information, and transportation environment information output by the data processor.

Method of processing logistics information, logistics information processing server using the same, and logistics managing apparatus using the same

A method for providing a traffic safety service of a traffic safety service server communicating with a client terminal includes: receiving sensor data of each sensor from the client terminal; classifying the sensor data into data according to at least one specific time slot for each sensor and calculating a safety score of each of the at least time slot; calculating an average of the safety scores of the at least time slot and calculating a safety score for each sensor, and calculating a safety index on the basis of the safety score for each sensor and a weight assigned to each sensor.

Method and apparatus for providing traffic safety service based on decision layer model

A method of controlling a wireless communication network, performed by a server, includes determining neighbor base stations adjacent to a target base station based on a connection relationship between a plurality of base stations; setting at least two reference base stations based on hop distances between the neighbor base stations; grouping terminals connected to the target base station into at least two groups based on information of the at least two reference base stations, and allocating a different time resource to each of the at least two groups.

Method for controlling wireless communication network and server therefor

A hybrid self-generation apparatus includes a vibration source based generation part installed in a mechanical apparatus and converting vibration energy generated during operation or movement of the mechanical apparatus into first electric energy; a wind power source based generation part installed in the mechanical apparatus and converting kinetic energy of air generated in periphery of the mechanical apparatus during operation or movement of the mechanical apparatus into second electric energy; and a power storage part storing the first electric energy and the second electric energy. Also, the wind power source based generation part includes at least one air controller, and the wind power source based generation part automatically operates or stops power generation according to a movement speed of the mechanical apparatus in accordance with operation of the at least one air controller.

Hybrid self-generation apparatus using vibration source and wind power source, and wireless sensor using the same

An operation method of a server in a communication network includes receiving a connection request message from each of a plurality of gateways connected to the server; identifying a service level of a terminal that has transmitted the connection request message based on information included in the connection request message; selecting a first gateway corresponding to the service level among the plurality of gateways as a gateway to which the terminal is to be connected; and transmitting a connection approval message, which is a response to the connection request message, to the terminal through the first gateway.

Access control method and apparatus based on service level

Disclosed is a device for controlling transmission power in CAN communication, including: a controller area network (CAN) interface configured to receive transmitted data through a CAN BUS; a message priority management unit configured to read an arbitration ID included in the received data, and determine a priority of the received data; and a transmission power level selection unit configured to determine a transmission power level according to the priority.

Apparatus and method for controlling transmission power in CAN communication

Disclosed is a method of avoiding channel interference by a sensor node including a multi transmission and reception unit in a wireless sensor network. The method includes setting channel A in channel group A for a first wireless transmission and reception unit, and setting channel B in channel group B for a second wireless transmission and reception unit, checking interference for the channel A, detecting interference for the channel B if interference is detected in the channel A, and performing communication through a channel where interference has not been detected among the channel A and the channel B.

Method and apparatus of interference avoidance based on multi transmission and reception

A system for detecting a global harmful video includes: a video determination policy generation unit for determining harmfulness of learning video segments from video learning information to analyze occurrence information of harmful learning video segments, and generating a global harmfulness determination policy based on the occurrence information; and a video determination policy execution unit for determining harmfulness of input video segments from information of an input video to analyze occurrence information of harmful input video segments, and determining whether the input video is harmful or not based on the occurrence information of the harmful input video segments and the global harmfulness determination policy.

System and method for detecting global harmful video

An apparatus for detecting specific human body parts in an image includes: a texture energy analysis unit for analyzing energy distribution in the image and generating texture energy maps; a candidate region-of-interest extraction unit for extracting candidate regions-of-interest for the specific body parts on a given texture energy map by applying a threshold to the given texture energy map, the given texture energy map being selected among the texture energy maps; a candidate mask application unit for performing convolution between candidate masks for the specific body parts and the candidate regions-of-interest and selecting candidate body parts based on results of the convolution; and a body part detection unit for detecting the specific body parts on the image by performing verification on the candidate body parts. The verification is performed by using machine-learning models for the specific body parts.

Method and apparatus for detecting specific external human body parts from texture energy maps of images by performing convolution

A low-power method for media access control on a semi-linear sensor network with multiple sensor nodes, includes: sensing a channel after waking up from a sleep mode by an arbitrary transmission sensor node that has obtained data; and generating a long preamble including a number of element preambles and sending to a destination sensor node after said channel sensing. This method further includes: sending said data to said destination sensor node after completion of transmission of said long preamble; and identifying duty cycle information of said destination sensor node after completion of transmission of said data and adjusting the number of said element preambles according to said duty cycle information.

Low-power method for media access control in semi-linear sensor network

A method for analyzing nudity of an image using a body part detection model includes: extracting a skin blob from an image; calculating a first probability value, which indicates a probability of determination on harmfulness of at least one of the image and the skin blob, using a harmfulness detection model; classifying the skin blob as a specific body part using a body part detection model, and calculating a second probability value which indicates a probability of certainty of said classifying; and rating nudity of the image based on the first probability value and the second probability value.

Method and apparatus for analyzing nudity of image using body part detection model, and method and apparatus for managing image database based on nudity and body parts

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Daejeon, South Korea

Byeong Cheol Choi