• 제어로봇시스템학회:학술대회논문집
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• 제어로봇시스템학회 1987년도 한국자동제어학술회의논문집(한일합동학술편); 한국과학기술대학, 충남; 16-17 Oct. 1987
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• pp.863-869
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• 1987

INFOBUS, which has been designed as a system bus of a multiprocessor system, will be introduced. And the concepts of the multiple transfer and ORed write transfer will be described. These concepts make INFOBUS to be well suited for use as the system bus of the multiprocessor based programmable controller(MBPC). In addition, the mean data transfer time through INFOBUS, which is one of the most significant performance of a bus, will be obtained by analysis and simulation. Next, MBPC which uses INFOBUS as its system bus will be introduced, and some basic characteristics of MBPC will be described. The construction of exact model for MBPC will be given and simulated using SDL/SIM package. The reference system of our model will be briefly described also. Some results from the simulation will be given and validated.

• 제어로봇시스템학회:학술대회논문집
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• 제어로봇시스템학회 1988년도 한국자동제어학술회의논문집(국내학술편); 한국전력공사연수원, 서울; 21-22 Oct. 1988
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• pp.407-413
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• 1988

The architecture of a multiprocessor based programmable controller(MBPC) is presented. It consists of a host processor, processing elements, and Input/Output processors. Some problems in implementing such architecture are also described. To resolve them, we proposed and presented INFOBUS, a system bus for MBPC. The performances of INFOBUS and MBPC are analysed using both analytic models and simulations. Some results from the analysis will be given and validated. In case of 50% of BTI(Block Type Instruction) and 4 processors, the scanning time is shown to be 0.194msec/Kstep with some reasonable assumptions.

• 제어로봇시스템학회논문지
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• 제2권1호
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• pp.60-66
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• 1996

Model Based Predictive Control(MBPC) has been widely used in predictive control since 80's. GPC[1] which is the superset of many MBPC strategies a popular method, but GPC has some weakness, such as insufficient stability analysis, non-applicability to internally unstable systems. However, CRHPC[2] proposed in 1991 overcomes the above limitations. So we chose RHPC based on CRHPC for electric furnace control. An electric furnace which has nonlinear properties and large time delay is difficult to control by linear controller because it needs nearly perfect modelling and optimal gain in case of PID. As a result, those controls are very time-consuming. In this paper, we applied RHPC with equality constraint to electric furnace. The reults of experiments also include the case of RHPC with monotonic weighting improving the transient response and including unmodelled dynamics. So, This paper proved the practical aspect of RHPC for real processes.

• 대한전기학회:학술대회논문집
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• 대한전기학회 1998년도 추계학술대회 논문집 학회본부 C
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• pp.1037-1040
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• 1998

In this research a fault-tolerant and bumpless switching control is proposed for boiler systems used in the power plants. Firstly, three operating points are selected to control the nonlinear boiler through the full operational range, and the $H_{\infty}$ loop shaping controller and the model-based predictive controller(MBPC) are designed. To prevent the windup and bump problems which are caused by the actuator saturation and the controller switching, an anti-windup and bumpless transfer technique is adopted to the $H_{\infty}$ loop shaping controller. Also the constrained gain-scheduling technique is applied to MBPC to achieve the same objective. Secondly, the fault-tolerant control technique is proposed to continue the control action without stopping the boiler operation even in case of some faults. Through various simulation studies, the performances of the proposed control techniques are demonstrated.

• 대한전기학회:학술대회논문집
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• 대한전기학회 1998년도 추계학술대회 논문집 학회본부 B
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• pp.689-692
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• 1998

In this research a fault-tolerant and bumpless switching control is proposed for boiler systems used in the power plants. Firstly, three operating points are selected to control the nonlinear boiler through the full operational range, and the $H_{\infty}$ loop shaping controller and the model-based predictive controller(MBPC) are designed. To prevent the windup and bump problems which are caused by the actuator saturation and the controller switching, an anti-windup and bump less transfer technique is adopted to the $H_{\infty}$ loop shaping controller. Also the constrained gain-scheduling technique is applied to MBPC to achieve the same objective. Secondly, the fault-tolerant control technique is proposed to continue the control action without stopping the boiler operation even in case of some faults. Through various simulation studies, the performances of the proposed control techniques are demonstrated.

• 대한전기학회:학술대회논문집
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• 대한전기학회 1998년도 추계학술대회 논문집 학회본부A
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• pp.369-372
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• 1998

In this research a fault-tolerant and bumpless switching control is proposed for boiler systems used in the power plants. Firstly, three operating points are selected to control the nonlinear boiler through the full operational range, and the $H_{\infty}$ loop shaping controller and the model-based predictive controller(MBPC) are designed. To prevent the windup and bump problems which are caused by the actuator saturation and the controller switching, an anti-windup and bumpless transfer technique is adopted to the $H_{\infty}$ loop shaping controller. Also the constrained gain-scheduling technique is applied to MBPC to achieve the same objective. Secondly, the fault-tolerant control technique is proposed to continue the control action without stopping the boiler operation even in case of some faults. Through various simulation studies, the performances of the proposed control techniques are demonstrated.

• 보건의료산업학회지
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• 제9권3호
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• pp.255-266
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• 2015

Objective : The aim of this study was to examine the effects of the Home-based Multi-component Activity Program (Home-MAP) for the maintenance activities of daily living (ADL) for patients with mild Alzheimer's disease (AD) and on caregiver burden for caregivers. Methods : Nine mild AD patients and family caregivers. The Home-MAP was performed 1d/wk, for a total of 10 times over 10 weeks. Results : After the 10 sessions, participants' motor and process skills scores on the AMPS were found to have significantly improved (p=.028 and p=.028, respectively). The BPSD frequency score on the R-MBPC was found to be significantly reduced (p=.017). The BPSD symptoms related to caregiver reaction score on the R-MBPC and distress score on the NPI-Q were significantly reduced (p=.039 and p=.018, respectively). Conclusions : The Home-MAP appears to have contributed to the improvement of patients' capabilities in performing in ADL, to a reduction of BPSD, and to a reduction of burden related to BPSD.

• 한국식품과학회지
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• 제52권6호
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• pp.641-648
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• 2020

본 연구는 우리나라에서 재배되는 대두, 녹두, 적두 및 완두 4종 콩 원물을 한 번에 추출하여 만든 혼합농축콩단백을 이용하여 대체 소시지를 개발하여 물리화학적 특성을 닭 소시지와 비교하였다. 경제성과 영양학적 특성을 고려하여 4종 콩 원물의 최적 혼합 비율을 설정하여 혼합농축콩단백을 추출하였을 때 혼합 농축단백 100 g을 기준으로 한국인 성인 남성 기준의 필수 아미노산 하루 평균 필요량이 충족되었다. 혼합농축콩단백을 이용하여 대체 소시지, 부분적 대체 소시지 및 닭 소시지의 물리화학적 분석 결과, 대체 소시지가 닭 소시지에 비해 요리 손실량, 튀김 손실량 및 유화성이 유의적으로 낮게 나타났으며(p<0.05), 닭 소시지 보다 물리화학적 품질이 우수하였다. 개발된 소시지의 물성적 특성은 대체 소시지가 닭 소시지에 비해 경도, 응집성, 검성, 씹힘성 및 탄성이 유의하게 높았다(p<0.05). 개발된 소시지의 색도 특성은 대체 소시지의 적색도(a) 및 황색도(b)가 닭 소시지에 비해 유의하게 높았고(p<0.05), 명도(L)는 닭 소시지가 대체 소시지에 비해 유의하게 높았으며(p<0.05), 부분적 대체 소시지는 대체 소시지와 닭 소시지의 사이 특성을 보였다. 따라서 본 연구를 종합해 볼 때, 혼합농축콩단백 소재가 영양학적인 면이 강화되었음을 확인하여 대체육 식품 소재로써의 활용 가능할 것으로 판단된다. 또한, 육류가 조금 들어간 부분적 대체 소시지는 육제품의 섭취를 줄이고 싶은 소비자를 대상으로 하는 대체육 산업에 잠재적인 가능성을 보였으며, 본 연구에서 개발된 대체 소시지는 식품 개발에 기초자료로서 활용 가능성을 보였다.

• 제어로봇시스템학회:학술대회논문집
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• 제어로봇시스템학회 1995년도 Proceedings of the Korea Automation Control Conference, 10th (KACC); Seoul, Korea; 23-25 Oct. 1995
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• pp.22-25
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• 1995

This paper shows adaptive control using RHPC(Receding Horizon Predictive Control) with equality constraint which applied to Electric Furnace. The control strategy includes monotonic weighting (improving transient response) and pre-filtering (enhancing robustness), which is effective on real process. We can observe the performance of RHPC and confirm the practical aspect of RHPC with unmodelled dynamics through the experiment of Electric Furnace. Finally, this paper verifies the feasibility of RHPC to real process.

• 제어로봇시스템학회:학술대회논문집
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• 제어로봇시스템학회 2001년도 ICCAS
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• pp.166.5-166
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• 2001

In the teleoperation system, force, position and velocity signals are communicated between master and slave arm. The addition of force feedback for the teleoperation system benefits the operator by providing more information to perform given tasks especially for tasks requiring contact with environment. When the master and slave arms are located in different places, time delay is unavoidable. Also it is well known that the system can become unstable when a time delay exists in the communication channel. The proposed control strategy is to use predictive control method(MBPC). The predictive controller is used to control teleoperation´s position and force control. Also it is used to overcome time delay.