Electronics and Telecommunications Research Institute

Lg Chem, Ltd

Korea Advanced Institute of Science and Technology

Seung-Min Lee

Taek-Yong Nam

Sung-Won Sohn

Chee-Hang Park

Jong-Min Park

Dai-Gil Lee

Hyeok-Chan Kwon

Hyun-Chul Lee

Byung-Chul Kim

Yong-Hyuk Moon

Soon-Ho Yoon

Dae-Hee Seo

Jong-Kyung Ko

Jae-Hoon Nah

Hui-Yun Hwang

Dong-Il Seo

Ju-Young Sun

Woo-Seok Chin

Jae-Wook Kwon

An apparatus for balancing a battery according to the present disclosure includes: a voltage measuring unit configured to measure a voltage of each of a plurality of battery cells connected to each other; and a control unit configured to calculate a state of charge (SOC) of each of the battery cells from the voltage measured by the voltage measuring unit, select a standard cell and a target group on the basis of the calculated SOCs of the battery cells, choose one battery cell among battery cells belonging to the selected target group as a target cell, calculate a balancing time according to a difference between the SOC of the standard cell and the SOC of the target cell, and perform balancing to the battery cells belonging to the target group during the calculated balancing time.

Apparatus and method for balancing battery and battery pack including the same

Disclosed is an apparatus and method for managing a battery that may manage a surrounding environment and a usage history of the battery. The battery management apparatus senses a temperature of an environment to which the battery is exposed, and stores a period of time during which the battery is exposed to a high temperature when the sensed temperature corresponds to a preset first or second area. In this instance, the battery management apparatus may determine whether the battery is simply exposed to the high temperature or the battery is charged or discharged while exposed to the high temperature, and store a usage time together. According to the present disclosure, information about a time domain affecting the life or performance of the battery may be calculated in consideration of the temperature environment to which the battery is exposed.

Apparatus and method for managing battery application environment and usage history

A network correction security system. The network correction security system connected between a network node and a security-related external system, detects attacks on the network node, corrects weak parts of the performance of the network node, collects information for improving the security performance of the network node from a security-related external system, analyzes the information, monitors principal resources of the network node to detect a fault, and removes the fault according to a measure corresponding to a grade of the fault. The network correction security system carries out a recovery process when the fault has not been corrected, and recovers the functions of the network node according to a recovery mechanism when the fault has not been removed after the recovery process.

Network correction security system and method

An authentication apparatus for a non-real-time IPTV system decrypts a first encrypted value included in a contents request message received from a device using a preset session key, and then verifies the validity of the contents request message. If the verification results of the contents request message are valid, the authentication apparatus encrypts a variation between timestamps of the authentication apparatus and the device using the session key, and then generates a second encrypted value. After verification information by which the device is capable of verifying the authentication apparatus has been generated using the second encrypted value, the authentication apparatus sends verification information, together with contents corresponding to the contents request message, to the device.

Authentication apparatus and method for non-real-time IPTV system

A method is disclosed for testing bonded part integrity of bonded structures with increased sensitivity and in a nondestructive manner. The method includes the steps of: mixing a piezoelectric material or an electrically conductive material with an adhesive agent, curing the adhesive agent in between bonding target objects, electrically connecting the bonding target objects to one another, causing an electric current to flow through the bonding target objects to measure a quantity of electric charges flowing between the bonding target objects, and determining existence of bonding damage between the bonding target objects and the adhesive agent based on the quantity of electric charges and predicting a remaining life span of the bonded structures based on a data indicating a correlation between the quantity of electric charges and a predetermined fatigue life.

Nondestructive reliability monitoring method for adhesively bonded structures whose sensitivity is improved by using piezoelectric or conductive materials

Growing community of inventors

Daejeon, South Korea

Seung-Min Lee