Newdin Contents Co., Ltd.

Golfzon Co., Ltd.

Hyundai Motor Company

Samsung Electronics Co., Ltd.

Kia Motors Corporation

Kia Corporation

Research Cooperation Foundation of Yeungnam University

Industry-academic Cooperation Foundation, Yeungnam University

Se Hwan Kim

Sang Hyun Joo

Bong Kyung Ko

Jul Ki Seok

Mu Shin Kwak

Sung Kyu Kim

Su Hyun Bae

Won Kyoung Choi

Myoung Woo Han

Jun Mo Hwang

Yeong Jin Noh

A system for controlling a delivery device comprises a server to transmit a target temperature for transporting a delivery item, and a delivery device to control a temperature of a compartment by determining whether the compartment should be heated or cooled, based on the target temperature for the delivery item, which is received from the server, when the delivery item is determined as being placed in the compartment, and control an operation of a heat managing device to control flow of air based on the temperature of a controller, which controls an operation of the delivery device, and the temperature of the compartment.

System and method for controlling delivery device

Provided are an apparatus and method for sensing a moving ball, which extract a feature portion such as a trademark, a logo, etc. indicated on a ball from consecutive images of a moving ball, acquired by an image acquisition unit embodied by a predetermined camera device, and calculate a spin axis and spin amount of rotation the moving ball based on the feature portion and thus spin of the ball is simply, rapidly, and accurately calculated with low computational load, thereby achieving rapid and stable calculation of the ball in a relatively low performance system. The sensing apparatus includes an image acquisition unit for acquiring consecutive images, an image processing unit for extracting a feature portion from the acquired image, and a spin calculation unit for calculating spin using the extracted feature portion.

Method and apparatus for sensing moving ball

Disclosed herein are a device and method for sensing a moving ball configured to analyze continuously acquired images of the moving ball and to calculate information about the spin of the moving ball based on the analysis result. It is possible to calculate the spin of the moving ball without providing a specific marker on the ball. In the case in which a logo or a brand mark is present on the ball, or in which dimples or cracks, which are feature portions in an image, are also present on the ball, it is possible to easily, rapidly, and accurately calculate the spin of the moving ball using the same.

Device for sensing moving ball and method for the same

Disclosed are a ball-pitching control method of a pitching machine in a baseball practice system that is capable of automatically compensating for inclination of the pitching machine, which may occur depending on the installation environment of the pitching machine, based on the result of sensing performed by a sensing device for sensing a pitched ball or a hit ball without using a separate sensor or measurement device and that is capable of automatically self-correcting the displacement of the pitching machine from the original position thereof or the corrected position thereof over time due to external impact applied to the pitching machine or a manager's inaccurate correction of the pitching machine by analyzing the results periodically sensed by a sensing device and the cumulative results of set ball pitching information of the pitching machine, and a baseball practice system using the same.

Ball-pitching control method of pitching machine in baseball practice system and baseball practice system using the same

Disclosed are a ball-pitching control method of a pitching machine in a baseball practice system that is capable of sensing a pitched ball or a hit ball using a sensing device without using a separate sensor or measurement device and correcting the settings of the pitching machine based on the result of sensing such that the pitching machine pitches a ball at an accurate speed, and that is capable of analyzing the results periodically sensed by a sensing device and the cumulative results of set ball pitching information of the pitching machine such that the pitching machine automatically performs self-correction, thereby solving a problem in which the set speed of the ball is not accurately realized due to deterioration of the pitching machine over time or due to a change in the weight or the state of the ball, and a baseball practice system using the same.

Disclosed are a screen baseball system, in which a pitching machine installed behind a screen pitches a ball toward a batting area through a pitching hole formed in the screen and a user hits the ball in the batting area, configured such that the case in which a virtual pitcher in an image projected on the screen is a left-handed pitcher and the case in which the virtual pitcher is a right-handed pitcher are realized when a ball is pitched through a single pitching hole, whereby the user who hits the ball in the batting area is capable of experiencing the pitch from the left-handed pitcher and the pitch from the right-handed pitcher, and a method of realizing a left-handed pitcher and a right-handed pitcher using the same.

Screen baseball system and method of realizing left-handed pitcher and right-handed pitcher using the same

A screen baseball system includes: a screen portion arranged in front of a batter's box and having a pitching hole allowing a pitched ball to pass therethrough; a ball pitching device arranged behind the screen portion to pitch a ball toward the batter's box through the pitching hole; and a hole opening/closing device configured to operate to close the pitching hole when the ball pitching device does not pitch the ball and to open the pitching hole when the ball pitching device pitches the ball.

Screen baseball system, hole opening and closing apparatus and ball pitching apparatus utilized thereby, and method for controlling pitching of screen baseball system

Disclosed are an image-processing-type sensing device and sensing method that are capable of acquiring an image of the motion of a pitched ball or a hit ball and analyzing the acquired image in order to calculate an accurate and rapid motion model of the ball, which shows how the ball moves, in a baseball practice apparatus that allows a user to perform a baseball practice or to play a baseball game, whereby it is possible to very accurately and rapidly calculate various kinds of information necessary for conducting the baseball practice or the baseball game, such as motion parameters of the pitched ball or the hit ball, a baseball practice apparatus using the sensing device and the sensing method, and a method of controlling the baseball practice apparatus.

Sensing device and sensing method used in baseball practice apparatus, baseball practice apparatus using the sensing device and the sensing method, and method of controlling the baseball practice apparatus

Disclosed are an image-sensing-based sensing device and sensing method that are capable of acquiring an image of the motion of a pitched ball or a hit ball and analyzing the acquired image in order to calculate an accurate and rapid motion model of the ball, which shows how the ball moves, in a baseball practice apparatus that allows a user to perform a baseball practice or to play a baseball game, whereby it is possible to very accurately and rapidly calculate various kinds of information necessary for conducting the baseball practice or the baseball game, such as motion parameters of the pitched ball or the hit ball, a baseball practice apparatus using the sensing device and the sensing method, and a method of controlling the baseball practice apparatus.

A baseball practice apparatus includes: a ball pitching device configured to pitch a ball toward a batting area where a user bats; a detection sensor configure to sense whether the user is located in the batting area; and a control device configured to analyze sensing information of the detection sensor to determine whether the user has prepared for batting in the batting area and cause the ball pitching device to operate according to a preset process when it is determined that the user has prepared for batting.

Baseball practice apparatus, sensing device and sensing method utilized thereby, and method for controlling ball pitching

Disclosed are an apparatus for sensing a moving golf ball and a method for sensing the moving golf ball using the apparatus. The apparatus includes an image acquisition unit for acquiring consecutive images of a ball, an image processing unit for extracting a feature portion of the ball from the acquired images, and a spin calculation unit for performing any one of forward operation analysis and inverse operation analysis to calculate spin of the ball.

Provides a method for controlling an AC motor, including: receiving a torque command value; generating a command current based on the torque command, and a command voltage by using the generated command current in a current vector controller (CVC) current control mode; switching to a hexagon voltage manipulating controller (HVMC) voltage control mode when the command voltage enters a voltage limit area, and generating a command voltage in the HVMC voltage control mode; and controlling torque of an AC motor by using the command voltage that is generated in the CVC current control mode or the HVMC voltage control mode.

Method for controlling AC motor

Disclosed is a method for controlling a permanent magnet synchronous motor to maximize use of voltages of a battery by voltage phase control within weak magnetic flux area and to achieve compensation for a torque error through a torque compensator when driving the permanent magnet synchronous motor for hybrid vehicles. In particular, the method controls a permanent magnet synchronous motor so that voltage use can be maximized in a weak magnetic flux area by using voltage near maximum voltage through voltage phase control utilizing magnetic flux-based map data receiving a torque command and motor speed/batter output voltage as inputs and torque error can be compensated using a torque compensation filter when a motor constant is changed in the weak magnetic flux by a circumstance parameter, when the permanent magnet synchronous motor mounted in a hybrid vehicle and an electric vehicle is driven.

Method for controlling interior permanent magnet synchronous motor

A mobile terminal and sound pressure control method using sound saturation sensing are disclosed. The mobile terminal has a target digital value of an adequate output sound pressure level at a maximum volume level. The sound pressure control method includes: determining a digital value corresponding to a maximum output sound pressure level of an externally sourced audio material, wherein the externally sourced audio material is being replayed for the first time at a preset gain at the maximum volume level; comparing the determined digital value with the target digital value; adjusting, if the determined digital value is not equal to the target digital value, the gain so that a digital value corresponding to the adjusted gain is equal to the target digital value; and storing the adjusted gain as a gain value associated with the maximum volume level for the externally sourced audio material.

Growing community of inventors

Daegu, South Korea

Se Hwan Kim