Pub Date : 2017-02-28DOI: 10.6109/jkiice.2017.21.2.345
Jea-Duck Kim, Zhong Xiaolei, Seong-Yeol Choi, Yeong-Seuk Kim
In this paper, a unified potentiostat which can measure the current of both O2-based and H2O2-based blood glucose sensors with low supply voltage of 1.0V has been designed and verified by simulations and measurements. Potentiostat is composed of low-voltage operational transconductance amplifier, cascode current mirrors and mode-selection circuits. It can measure currents of blood glucose chemical reactions occurred by O2 or H2O2. The body of PMOS input differentional stage of the operational transconductance amplifier is forward-biased to reduce the threshold voltage for low supply voltage operation. Also, cascode current mirror is used to reduce current measurement error generated by channel length modulation effects. The proposed low-voltage potentiostat is designed and simulated using Cadence SPECTRE and fabricated in Magnachip 0.18um CMOS technology with chip size of 110μm×60μm. The measurement results show that consumption current is maximum 46μA at supply voltage of 1.0V. Using the persian potassium(K3Fe(CN)6) equivalent to glucose, the operation of the fabricated potentiostat was confirmed. 키워드 : 정전압분극장치, 혈당측정센서, 연산 트랜스컨덕턴스 증폭기, 캐스코드 전류거울 Key word : Potentiostat, Glucose Sensor, Operational Transconductance Amplifier, Cascode Current Mirror Received 04 October 2016, Revised 24 October 2016, Accepted 30 October 2016 * Corresponding Author Yeong-Seuk Kim(E-mail:kimys@cbnu.ac.kr Tel:+82-43-261-3137) Department of Semiconductor Engineering, Chungbuk National University, Cheongju 28644, Korea Open Access http://doi.org/10.6109/jkiice.2017.21.2.345 print ISSN: 2234-4772 online ISSN: 2288-4165 This is an Open Access article distributed under the terms of the Creative Commons Attribution Non-Commercial License(http://creativecommons.org/li-censes/ by-nc/3.0/) which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited. Copyright C The Korea Institute of Information and Communication Engineering. Journal of the Korea Institute of Information and Communication Engineering 한국정보통신학회논문지(J. Korea Inst. Inf. Commun. Eng.) Vol. 21, No. 2 : 345~352 Feb. 2017
{"title":"Design of 1.0V O2 and H2O2 based Potentiostat","authors":"Jea-Duck Kim, Zhong Xiaolei, Seong-Yeol Choi, Yeong-Seuk Kim","doi":"10.6109/jkiice.2017.21.2.345","DOIUrl":"https://doi.org/10.6109/jkiice.2017.21.2.345","url":null,"abstract":"In this paper, a unified potentiostat which can measure the current of both O2-based and H2O2-based blood glucose sensors with low supply voltage of 1.0V has been designed and verified by simulations and measurements. Potentiostat is composed of low-voltage operational transconductance amplifier, cascode current mirrors and mode-selection circuits. It can measure currents of blood glucose chemical reactions occurred by O2 or H2O2. The body of PMOS input differentional stage of the operational transconductance amplifier is forward-biased to reduce the threshold voltage for low supply voltage operation. Also, cascode current mirror is used to reduce current measurement error generated by channel length modulation effects. The proposed low-voltage potentiostat is designed and simulated using Cadence SPECTRE and fabricated in Magnachip 0.18um CMOS technology with chip size of 110μm×60μm. The measurement results show that consumption current is maximum 46μA at supply voltage of 1.0V. Using the persian potassium(K3Fe(CN)6) equivalent to glucose, the operation of the fabricated potentiostat was confirmed. 키워드 : 정전압분극장치, 혈당측정센서, 연산 트랜스컨덕턴스 증폭기, 캐스코드 전류거울 Key word : Potentiostat, Glucose Sensor, Operational Transconductance Amplifier, Cascode Current Mirror Received 04 October 2016, Revised 24 October 2016, Accepted 30 October 2016 * Corresponding Author Yeong-Seuk Kim(E-mail:kimys@cbnu.ac.kr Tel:+82-43-261-3137) Department of Semiconductor Engineering, Chungbuk National University, Cheongju 28644, Korea Open Access http://doi.org/10.6109/jkiice.2017.21.2.345 print ISSN: 2234-4772 online ISSN: 2288-4165 This is an Open Access article distributed under the terms of the Creative Commons Attribution Non-Commercial License(http://creativecommons.org/li-censes/ by-nc/3.0/) which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited. Copyright C The Korea Institute of Information and Communication Engineering. Journal of the Korea Institute of Information and Communication Engineering 한국정보통신학회논문지(J. Korea Inst. Inf. Commun. Eng.) Vol. 21, No. 2 : 345~352 Feb. 2017","PeriodicalId":136663,"journal":{"name":"The Journal of the Korean Institute of Information and Communication Engineering","volume":"26 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-02-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129819646","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2017-02-28DOI: 10.6109/JKIICE.2017.21.2.339
Ki-Yeong Ko, Yong-shig Choi
A novel structure of phase locked loop (PLL) which has small size and fast locking time with Early-late detector, Duty-rate modulator, and Lock status indicator (LSI) is proposed in this paper. The area of loop filter usually occupying the larger portion of the chip is minimized using a single small capacitor. While the conventional PLL with a single capacitor loop filter cannot work stably, the proposed PLL with two charge pumps works stably because the output voltage waveform of the proposed a single capacitor loop filter is the same as the output voltage waveform of the conventional 2nd-order loop filter. The two charge pumps are controlled by the Early-late detector which detects early-late status of UP and DN signals, and Duty-rate modulator which generates a steady duty-rate signal. Fast locking time is achieved using LSI. It has been simulated and proved by HSPICE in a CMOS 0.18 μ m 1.8V process.
提出了一种体积小、锁相时间快的锁相环结构，该锁相环由早-晚检测器、占空率调制器和锁相状态指示器(LSI)组成。环路滤波器的面积通常占用较大的部分的芯片是最小化使用一个小电容器。传统的带单电容环路滤波器的锁相环不能稳定工作，而带两个电荷泵的锁相环可以稳定工作，因为所提出的单电容环路滤波器的输出电压波形与传统二阶环路滤波器的输出电压波形相同。两个电荷泵由检测UP和DN信号的早-晚状态的早-晚检测器和产生稳定占空率信号的占空率调制器控制。采用大规模集成电路实现快速锁定时间。用HSPICE在CMOS 0.18 μ m 1.8V工艺上进行了仿真验证。
{"title":"Fast locking single capacitor loop filter PLL with Early-late detector","authors":"Ki-Yeong Ko, Yong-shig Choi","doi":"10.6109/JKIICE.2017.21.2.339","DOIUrl":"https://doi.org/10.6109/JKIICE.2017.21.2.339","url":null,"abstract":"A novel structure of phase locked loop (PLL) which has small size and fast locking time with Early-late detector, Duty-rate modulator, and Lock status indicator (LSI) is proposed in this paper. The area of loop filter usually occupying the larger portion of the chip is minimized using a single small capacitor. While the conventional PLL with a single capacitor loop filter cannot work stably, the proposed PLL with two charge pumps works stably because the output voltage waveform of the proposed a single capacitor loop filter is the same as the output voltage waveform of the conventional 2nd-order loop filter. The two charge pumps are controlled by the Early-late detector which detects early-late status of UP and DN signals, and Duty-rate modulator which generates a steady duty-rate signal. Fast locking time is achieved using LSI. It has been simulated and proved by HSPICE in a CMOS 0.18 μ m 1.8V process.","PeriodicalId":136663,"journal":{"name":"The Journal of the Korean Institute of Information and Communication Engineering","volume":"66 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-02-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130023583","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2017-02-28DOI: 10.6109/JKIICE.2017.21.2.259
Hyungsik Shin
Birth weight of a new born baby provides very important information in evaluating many clinical issues such as fetal growth restriction. This paper analyzes birth weight data of babies born in Korea from 2011 to 2013, and it shows that there is a biologically implausible distribution of birth weights in the data. This implies that some errors may be generated in the data collection process. In particular, this paper analyzes the relationship between gestational period and birth weight, and it is shown that the birth weight data mostly of gestational periods from 28 to 32 weeks have noticeable errors. Therefore, this paper employs the finite Gaussian mixture model to classify the collected data points into two classes: non-corrupted and corrupted. After the classification the paper removes data points that have been predicted to be corrupted. This adjustment scheme provides more natural and medically plausible percentile values of birth weights for all the gestational periods.
{"title":"Adjustment of Korean Birth Weight Data","authors":"Hyungsik Shin","doi":"10.6109/JKIICE.2017.21.2.259","DOIUrl":"https://doi.org/10.6109/JKIICE.2017.21.2.259","url":null,"abstract":"Birth weight of a new born baby provides very important information in evaluating many clinical issues such as fetal growth restriction. This paper analyzes birth weight data of babies born in Korea from 2011 to 2013, and it shows that there is a biologically implausible distribution of birth weights in the data. This implies that some errors may be generated in the data collection process. In particular, this paper analyzes the relationship between gestational period and birth weight, and it is shown that the birth weight data mostly of gestational periods from 28 to 32 weeks have noticeable errors. Therefore, this paper employs the finite Gaussian mixture model to classify the collected data points into two classes: non-corrupted and corrupted. After the classification the paper removes data points that have been predicted to be corrupted. This adjustment scheme provides more natural and medically plausible percentile values of birth weights for all the gestational periods.","PeriodicalId":136663,"journal":{"name":"The Journal of the Korean Institute of Information and Communication Engineering","volume":"87 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-02-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123303454","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2017-02-28DOI: 10.6109/JKIICE.2017.21.2.245
Ung-Hee Park
The proposed variable pawer divider in this paper is composed of one equal power 2-way Wilkinson power divider, two variable phase shifters with 90-degree phase variation to be connected two output paths of the 2-way power divider, and one branchline coupler to combine output signals of two variable phase shifter. The proposed variable power divider can theoretically have an arbitrary power division ratio ranging from 1: ∞ to ∞ :1 due to 90-degrees phase variation of two phase shifter. The proposed power divider circuit fabricates on laminated TLX-9(h=20 mil, er=2.5; Taconic) with a center frequency of 1.7 GHz. The power division ratio of the fabricated prototype varies from about 1:100 to 200:1, with an input reflection characteristic(S11) of below -16 dB, an insertion loss of about -1.0 dB, and an isolation characteristic of below -17 dB between two output ports in the range 1.65-1.75 GHz.
{"title":"A variable power divider circuit using the combine characteristic of the branchline coupler","authors":"Ung-Hee Park","doi":"10.6109/JKIICE.2017.21.2.245","DOIUrl":"https://doi.org/10.6109/JKIICE.2017.21.2.245","url":null,"abstract":"The proposed variable pawer divider in this paper is composed of one equal power 2-way Wilkinson power divider, two variable phase shifters with 90-degree phase variation to be connected two output paths of the 2-way power divider, and one branchline coupler to combine output signals of two variable phase shifter. The proposed variable power divider can theoretically have an arbitrary power division ratio ranging from 1: ∞ to ∞ :1 due to 90-degrees phase variation of two phase shifter. The proposed power divider circuit fabricates on laminated TLX-9(h=20 mil, er=2.5; Taconic) with a center frequency of 1.7 GHz. The power division ratio of the fabricated prototype varies from about 1:100 to 200:1, with an input reflection characteristic(S11) of below -16 dB, an insertion loss of about -1.0 dB, and an isolation characteristic of below -17 dB between two output ports in the range 1.65-1.75 GHz.","PeriodicalId":136663,"journal":{"name":"The Journal of the Korean Institute of Information and Communication Engineering","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-02-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125079310","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2017-02-28DOI: 10.6109/jkiice.2017.21.2.285
김완우, 허경용
줄넘기는 줄을 돌리는 손동작과 뛰어오르는 동작이 결합된 운동으로 정확한 카운트를 위해서는 두 동작을 함께 고려해야 한다. 이전의 연구들에서는 단순 반복적인 운동인 윗몸일으키기, 팔굽혀펴기, 아령 운동과 함께 치부하여 하나의 동작만을 체크하여 카운트 하였다. 이것은 실제 줄넘기 동작과는 차이가 있으며 두 동작 중 하나의 동작만을 하고 있다면 확인해내지 못하는 문제가 있다. 본 논문에서는 6축 가속도 자이로 센서를 이용하여 두 동작을 모두 확인하고 카운트하는 방법을 제안한다. 가속도 센서를 이용하여 뛰어오르는 동작을 확인하며 자이로 센서를 이용하여 손동작을 확인한다. 이때 확인되는 값의 파형을 이용하여 줄넘기 횟수를 카운트하게 된다. 제안하는 방법은 실제 실험을 통하여 카운트 방법의 성능을 확인할 수 있다.
{"title":"6축 가속도 자이로 센서를 이용한 줄넘기 회전운동 검출","authors":"김완우, 허경용","doi":"10.6109/jkiice.2017.21.2.285","DOIUrl":"https://doi.org/10.6109/jkiice.2017.21.2.285","url":null,"abstract":"줄넘기는 줄을 돌리는 손동작과 뛰어오르는 동작이 결합된 운동으로 정확한 카운트를 위해서는 두 동작을 함께 고려해야 한다. 이전의 연구들에서는 단순 반복적인 운동인 윗몸일으키기, 팔굽혀펴기, 아령 운동과 함께 치부하여 하나의 동작만을 체크하여 카운트 하였다. 이것은 실제 줄넘기 동작과는 차이가 있으며 두 동작 중 하나의 동작만을 하고 있다면 확인해내지 못하는 문제가 있다. 본 논문에서는 6축 가속도 자이로 센서를 이용하여 두 동작을 모두 확인하고 카운트하는 방법을 제안한다. 가속도 센서를 이용하여 뛰어오르는 동작을 확인하며 자이로 센서를 이용하여 손동작을 확인한다. 이때 확인되는 값의 파형을 이용하여 줄넘기 횟수를 카운트하게 된다. 제안하는 방법은 실제 실험을 통하여 카운트 방법의 성능을 확인할 수 있다.","PeriodicalId":136663,"journal":{"name":"The Journal of the Korean Institute of Information and Communication Engineering","volume":"100 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-02-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114874461","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2017-02-28DOI: 10.6109/JKIICE.2017.21.2.294
Mariam Yiwere, E. Rhee
본 논문에서는 에너지 기반 영역 선택과 TDOA에 의해 3차원에서 음원의 방위와 높이를 계산하여 음원 위치를 추정하는 방법을 제안한다. 본 연구의 목적은 음원 위치 추정에서 계산시간 감축으로, 수평면 3개 신호의 에너지 비교에 의한 영역 선택과 선택된 영역의 TDOA에 의해 방위각을 계산하고, 또 높이 계산을 위한 마이크로폰 신호와 가장 큰 에너지를 갖는 평면 신호와의 TDOA로 높이각을 추정하는 방법을 제안한다. 제안한 방법에 대한 음원 추정실험 결과 수평 방위각 추정에서 평균 0.778°, 높이각 추정에서 1.296°의 오류를 보여 기존의 방법과 정확도에서 유사하고, 추정은 1회 신호 에너지 비교와 2회의 TDOA계산으로 가능하여 처리 시간이 단축된다.
{"title":"3-D Sound Source Localization using Energy-Based Region Selection and TDOA","authors":"Mariam Yiwere, E. Rhee","doi":"10.6109/JKIICE.2017.21.2.294","DOIUrl":"https://doi.org/10.6109/JKIICE.2017.21.2.294","url":null,"abstract":"본 논문에서는 에너지 기반 영역 선택과 TDOA에 의해 3차원에서 음원의 방위와 높이를 계산하여 음원 위치를 추정하는 방법을 제안한다. 본 연구의 목적은 음원 위치 추정에서 계산시간 감축으로, 수평면 3개 신호의 에너지 비교에 의한 영역 선택과 선택된 영역의 TDOA에 의해 방위각을 계산하고, 또 높이 계산을 위한 마이크로폰 신호와 가장 큰 에너지를 갖는 평면 신호와의 TDOA로 높이각을 추정하는 방법을 제안한다. 제안한 방법에 대한 음원 추정실험 결과 수평 방위각 추정에서 평균 0.778°, 높이각 추정에서 1.296°의 오류를 보여 기존의 방법과 정확도에서 유사하고, 추정은 1회 신호 에너지 비교와 2회의 TDOA계산으로 가능하여 처리 시간이 단축된다.","PeriodicalId":136663,"journal":{"name":"The Journal of the Korean Institute of Information and Communication Engineering","volume":" 30","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-02-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"113951762","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2017-02-28DOI: 10.6109/JKIICE.2017.21.2.429
Jae-Hoon Kim
In a graph with vertices, there is an unique box which is finally laid on each vertex. Thus each vertex and box is both numbered from 1 to and the box should be laid on the vertex . But, the box is initially located on the vertex according to a permutation . In each step, the robot can walk along an edge of and can carry at most one box at a time. Also when arriving at a vertex, the robot can swap the box placed there with the box it is carrying. The problem is to minimize the total step so that every vertex has its own box, that is, the shuffled boxes are sorted. In this paper, we shall find an upper bound of the minimum number of steps and show that the movement of the robot is found in time when is a cycle.
{"title":"Minimum Movement of a Robot for Sorting on a Cycle","authors":"Jae-Hoon Kim","doi":"10.6109/JKIICE.2017.21.2.429","DOIUrl":"https://doi.org/10.6109/JKIICE.2017.21.2.429","url":null,"abstract":"In a graph with vertices, there is an unique box which is finally laid on each vertex. Thus each vertex and box is both numbered from 1 to and the box should be laid on the vertex . But, the box is initially located on the vertex according to a permutation . In each step, the robot can walk along an edge of and can carry at most one box at a time. Also when arriving at a vertex, the robot can swap the box placed there with the box it is carrying. The problem is to minimize the total step so that every vertex has its own box, that is, the shuffled boxes are sorted. In this paper, we shall find an upper bound of the minimum number of steps and show that the movement of the robot is found in time when is a cycle.","PeriodicalId":136663,"journal":{"name":"The Journal of the Korean Institute of Information and Communication Engineering","volume":"14 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-02-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122115066","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2017-02-28DOI: 10.6109/JKIICE.2017.21.2.309
Seong-Woo Kim
Recently it has drawn much attention on the technologies about Internet of Things (IoT) which connects objects with constrained resource and heterogenous communication module in order to communicate information via internet. We propose a real-time sensor monitoring system based on IPv6 over Bluetooth Low Energy (BLE), which is included in Bluetooth 4.2 Specification. Since this system uses a publish-subsribe based IoT protocol, so called Message Queueing Telemetry Transport (MQTT), neither transforming network data nor any proxy server is needed in order to transmit data. Through the web client connected to this system, you can monitor sensor data sent by BLE device in real-time, intermediated via MQTT broker and then delivered to the client via HTTP and websocket protocol. In this paper we evaluated network capacity and availability of the implemented test platform. Thus by using this system it is possible to make development cost low and to construct IoT network with heterogenous devices easily.
近年来，物联网技术引起了人们的广泛关注，它将具有约束资源的对象和异构通信模块连接起来，通过互联网进行信息通信。我们提出了一种基于IPv6 over Bluetooth Low Energy (BLE)的实时传感器监控系统，该系统包含在Bluetooth 4.2规范中。由于该系统使用基于发布-订阅的物联网协议，即所谓的消息队列遥测传输(MQTT)，因此既不需要转换网络数据，也不需要任何代理服务器来传输数据。通过连接到该系统的web客户端，可以实时监控BLE设备发送的传感器数据，通过MQTT代理进行中介，然后通过HTTP和websocket协议传递给客户端。本文对所实现的测试平台的网络容量和可用性进行了评估。因此，使用该系统可以降低开发成本，并且可以轻松构建异构设备的物联网网络。
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Pub Date : 2017-02-28DOI: 10.6109/jkiice.2017.21.2.265
Du-San Baek, Tae-sung Yoon
In this paper, a robust and more accurate trajectory tracking control method for a mobile robot is proposed using WIPDC(Weighted Integral Parallel Distributed Compensation) and T-S Fuzzy disturbance observer. WIPDC reduces the steady state error by adding weighted integral term to PDC. And, T-S Fuzzy disturbance observer makes it possible to estimate and cancel disturbances for a T-S fuzzy model system. As a result, the trajectory tracking controller based on T-S Fuzzy disturbance observer shows robust tracking performance. When the initial postures of a mobile robot and the reference trajectory are different, the initial control inputs to the mobile robot become too large to apply them practically. In this study, also, the problem is solved by designing an initial approach path using a path planning method which employs Bézier curve with acceleration limits. Performances of the proposed method are proved from the simulation results.
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Pub Date : 2017-02-28DOI: 10.6109/jkiice.2017.21.2.373
임지용, 오암석
온라인 쇼핑 시장이 성장하는 가운데 소비자의 구매 프로세스는 온·오프라인의 경계 없이 복잡해졌고, 지능적인 맞춤형 서비스를 원하는 스마트 컨슈머가 등장하였다. 변화하는 소비자 및 소비 환경에 따라 각 관련 분야의 기업들은 다양한 옴니채널과 O2O 서비스를 제공하고 있으나 패션업계에서의 대응은 많이 늦은 편이다. 그리고 최근에 사물인터넷 환경도 표준화 기반 오픈 플렛폼으로 변화하고 있으며 사물의 유형에 따른 지능적인 서비스의 다양화가 요구되고 있다. 본 논문 에서는 패션업계에 적합한 스마트 피팅 디스플레이를 활용한 패션 O2O 시스템을 제안한다. 제안하는 시스템은 오프라인 매장에서 사용자가 수행한 피팅에 관한 정보를 데이터베이스화하여 사용자에게 제공하며 오프라인에서 수행한 사용자의 활동들을 온라인에서도 지원함으로써, 사용자의 구매활동을 지속적으로 유지, 관리할 수 있도록 한다. 아울러, 매장관리시스템 및 배송시스템의 정보 연계를 통해 고객 중심의 지능적인 피팅 서비스가 가능할 것으로 기대한다.
{"title":"효율적인 피팅 서비스와 배송 프로세스를 위한 옴니채널 시스템에 대한 연구","authors":"임지용, 오암석","doi":"10.6109/jkiice.2017.21.2.373","DOIUrl":"https://doi.org/10.6109/jkiice.2017.21.2.373","url":null,"abstract":"온라인 쇼핑 시장이 성장하는 가운데 소비자의 구매 프로세스는 온·오프라인의 경계 없이 복잡해졌고, 지능적인 맞춤형 서비스를 원하는 스마트 컨슈머가 등장하였다. 변화하는 소비자 및 소비 환경에 따라 각 관련 분야의 기업들은 다양한 옴니채널과 O2O 서비스를 제공하고 있으나 패션업계에서의 대응은 많이 늦은 편이다. 그리고 최근에 사물인터넷 환경도 표준화 기반 오픈 플렛폼으로 변화하고 있으며 사물의 유형에 따른 지능적인 서비스의 다양화가 요구되고 있다. 본 논문 에서는 패션업계에 적합한 스마트 피팅 디스플레이를 활용한 패션 O2O 시스템을 제안한다. 제안하는 시스템은 오프라인 매장에서 사용자가 수행한 피팅에 관한 정보를 데이터베이스화하여 사용자에게 제공하며 오프라인에서 수행한 사용자의 활동들을 온라인에서도 지원함으로써, 사용자의 구매활동을 지속적으로 유지, 관리할 수 있도록 한다. 아울러, 매장관리시스템 및 배송시스템의 정보 연계를 통해 고객 중심의 지능적인 피팅 서비스가 가능할 것으로 기대한다.","PeriodicalId":136663,"journal":{"name":"The Journal of the Korean Institute of Information and Communication Engineering","volume":"127 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-02-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123520008","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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