著者

才木 常正 荒木 望 武尾 正弘 吉田 陽一 前中 一介

出版者

一般社団法人 電気学会

雑誌

電気学会論文誌C(電子・情報・システム部門誌) (ISSN:03854221)

巻号頁・発行日

vol.136, no.7, pp.1033-1034, 2016-07-01 (Released:2016-07-01)

参考文献数

5

被引用文献数

1 2

---

In this study, we propose a novel fishing support system using millimeter size acceleration sensors for detecting fish bite. On the base of field test, rod top acceleration of vibration with fish bite and its human cognition were investigated by sensor measurement and verbal communication, respectively. As a result, it was shown that an experimental participant could not cognize all of fish bites that were detected by the sensor. Thus, the validity of the fishing support system with the acceleration sensor mounted on a rod top was confirmed.

著者

才木 常正 荒木 望 兼吉 高宏 武尾 正弘 吉田 陽一 前中 一介

出版者

一般社団法人 電気学会

雑誌

電気学会論文誌C(電子・情報・システム部門誌) (ISSN:03854221)

巻号頁・発行日

vol.137, no.5, pp.770-771, 2017-05-01 (Released:2017-05-01)

参考文献数

5

被引用文献数

2

---

In this study, we investigated about fishing gears control when surf casting by a participant. As a result, it was found that the casting distance became longer when the participant released fishing line at the period of time from the maximum to zero of a fishing rod rotation speed. Thus, the validity of a fishing support system, that automatically releases the fishing line at the optimum time decided by the rotation speed data obtained from an acceleration sensor mounted on the fishing rod, was confirmed.

著者

小坂 満隆 明石 吉三 水野 康彦

出版者

一般社団法人 電気学会

雑誌

電気学会論文誌C(電子・情報・システム部門誌) (ISSN:03854221)

巻号頁・発行日

vol.110, no.4, pp.263-272, 1990-04-20 (Released:2008-12-19)

参考文献数

7

---

The importance of SIS (Strategic Information System), which supports strategic business operation, has been increasing with the progress of information and communication technology. In SIS, the close connectivity between information and business is a critical success factor. In this paper the authors propose a methodology of planning SIS. First, introducing the business information system diagram, the role of information for business is clarified. Next, such concept is introduced that the information power as effectiveness for business is determined by the connectivity between information quality and information field representing the necessity of information. On the basis of this concept, a methodology of planning SIS, which consists of 3 factors, that is, steps, tools and frameworks, is proposed. The characteristic of the proposed methodology is to find a solution to the complex problem of planning SIS systematically by employing fixed steps, fixed tools and fixed frameworks.

著者

三森 定道

出版者

一般社団法人 電気学会

雑誌

電気学会論文誌C(電子・情報・システム部門誌) (ISSN:03854221)

巻号頁・発行日

vol.115, no.9, pp.1017-1021, 1995-08-20 (Released:2008-12-19)

参考文献数

9

著者

佐藤 立博 三橋 龍一 佐鳥 新 佐々木 一正

出版者

The Institute of Electrical Engineers of Japan

雑誌

電気学会論文誌. C, 電子・情報・システム部門誌 = The transactions of the Institute of Electrical Engineers of Japan. C, A publication of Electronics, Information and System Society (ISSN:03854221)

巻号頁・発行日

vol.129, no.6, pp.1094-1100, 2009-06-01

参考文献数

11

被引用文献数

4 1

---

In recent years, many universities have already launched small satellite on-orbit. Attitude information is important for satellite operation. However, many nano-satellite communication systems used amateur radio by narrow bandwidth frequency segment. Therefore, down-link of attitude information is expected to require substantial time. In this paper, we propose establishment of the attitude estimation method by means of the received radio power. And, satellite attitude information being estimated from the fluctuation of the received power. Then, comparison of satellite data obtained from on-board sensors with ground experiment. One major problem in this approach is the effect of Earth's ionosphere. As the radio signal passes through the ionosphere, the polarization angle is rotated by the Faraday Effect. The detection of attitude by the radiation pattern has been assumed that inaccurate. However, we are get data the spin satellite of liner polarization antenna. As a result, we can estimate 0.12rad/s accuracy of angular velocity measurement. This method can be applied to the attitude detection of many small satellites.

著者

松尾 徳朗 鮫島 正樹 橋本 喜代太

出版者

The Institute of Electrical Engineers of Japan

雑誌

電気学会論文誌. C, 電子・情報・システム部門誌 = The transactions of the Institute of Electrical Engineers of Japan. C, A publication of Electronics, Information and Systems Society (ISSN:03854221)

巻号頁・発行日

vol.133, no.3, pp.562-566, 2013-03-01

被引用文献数

1

---

This article describes innovations in tourism information systems and their changing after the Internet technologies have appeared. Airline companies in United States started to provide computer reservation system to be made air ticket reservation and to be confirmed their seats in the aircraft. These systems were provided to travel agency to help their business. After around 2000, as the Internet develops, the tourism information systems have been becoming an increasingly development for B2C. Recent research contributions are including innovative user support; user preferences on the web can be analyzed by data mining technology; and the system make a travel plan based on users' preferences.

著者

莅戸 立夫 裴 鐘石 水野 皓司

出版者

一般社団法人 電気学会

雑誌

電気学会論文誌C(電子・情報・システム部門誌) (ISSN:03854221)

巻号頁・発行日

vol.119, no.10, pp.1100-1104, 1999-10-01 (Released:2008-12-19)

参考文献数

24

著者

吉浦 紀晃 小野里 好邦 木村 博茂

出版者

一般社団法人 電気学会

雑誌

電気学会論文誌C(電子・情報・システム部門誌) (ISSN:03854221)

巻号頁・発行日

vol.124, no.8, pp.1538-1545, 2004 (Released:2004-11-01)

参考文献数

27

被引用文献数

1

---

In biometric authentication, the biometric data is registered and authentication is done by collation input biometric data with the registered biometric data. If the registered biometric data is stolen, there is a possibility that the the biometric data of registrants may be used improperly. It is very difficult to prevent such improper use because we no longer change biometric data. Therefore it is necessary to pay sufficient attention to the protection of biometric data. This paper proposes the application of one way function to biometric authentication in order to protect biometric data of registrants. We examine and discuss the possibility of application of one way function in biometric authentication.

著者

林田 智弘 山本 透 木下 拓矢 西崎 一郎 関崎 真也 平塚 尚人

出版者

一般社団法人 電気学会

雑誌

電気学会論文誌C(電子・情報・システム部門誌) (ISSN:03854221)

巻号頁・発行日

vol.137, no.2, pp.242-248, 2017-02-01 (Released:2017-02-01)

参考文献数

13

---

A single or multiple kinds of internal or external environmental variations of the system often cause the property variation of any system under control, and the readjustment of controller parameters is required. To maintain high performance of controlling and minimize the total cost for readjustments of the controller parameters, determination the appropriate timing for readjustment the controller parameters is important. This paper proposes new procedure to determine the appropriate timing for the readjustments based on the time-series data using the recurrent neural networks (RNNs). A well coordinated RNN with proper structure has high performance on the predication of time-series data with the assistance of its internal signal feedback structure. This paper conducts some numerical experiments to verify the availability of the proposed method to some systems. The experimental result indicates that the proposed method has higher performance than other existing method with the same aim.

著者

松村 幸輝 衣笠 智 白木 三秀

出版者

一般社団法人 電気学会

雑誌

電気学会論文誌C(電子・情報・システム部門誌) (ISSN:03854221)

巻号頁・発行日

vol.134, no.5, pp.718-728, 2014 (Released:2014-05-01)

参考文献数

18

---

This paper proposes the expat assessment system for global management personnel training utilizing the data mining employing evolutionary computation. This study follows the three steps. First step is to research those overseas temporary staff by direct hearing and having them answer the questionnaires. The second step is to make the data base with the results acquired from the step one. The third step is to construct the system to assess the prospective staff's aptitude or adaptability. The system would enable to promote the efficiency of assessment and to be useful in their training. This expat assessment system is built with the decision tree of evaluation standard based on the assorting problem solving method. For designing the non-terminal nodes of the decision tree, a new method is proposed utilizing the idea of the association rules, which is a powerful method in data mining. This is done to find out direct factors related to aptitude or suitability for overseas staff. The terminal nodes of the decision tree are to be optimized by Genetic Algorithm (GA) regarding a series of terminal nodes as the individuals forming the linear structure. As a result, the significant factors are found, which are strongly related to aptitude, adaptability and likeliness to be successful overseas. This research has revealed, by applying the system in practice, actual aptitude, skills and personalities required for expats.

著者

小林 康浩 大北 正昭 井上 倫夫

出版者

The Institute of Electrical Engineers of Japan

雑誌

電気学会論文誌. C (ISSN:03854221)

巻号頁・発行日

vol.96, no.8, pp.173-178, 1976-08-20 (Released:2008-12-19)

参考文献数

7

著者

稲田 脩二 梶原 祐輔 島川 博光

出版者

一般社団法人 電気学会

雑誌

電気学会論文誌C(電子・情報・システム部門誌) (ISSN:03854221)

巻号頁・発行日

vol.135, no.9, pp.1149-1150, 2015-09-01 (Released:2015-09-01)

参考文献数

3

---

The evaluation of past processes of production from farming records enables job-changing middle or advanced farmer to work more effectively. The paper proposes a method to discriminate farm works from viewpoint videos, reducing the load of farmers. In this method, farmers wear a camera embedded in a glasses to acquire viewpoint videos during their farm works. To confirm the effectiveness of the method, it is applied to the discrimination of watering, plowing, adding fertilizer, disbudding, and seeding. As a result, the method has discriminated watering and plowing with high accuracy using routing information of farm works. In addition, this paper has discussed important factor for farm-works discrimination and the problem of viewpoint video.

著者

依田 育士 細谷 大輔 坂上 勝彦

出版者

The Institute of Electrical Engineers of Japan

雑誌

電気学会論文誌. C, 電子・情報・システム部門誌 = The transactions of the Institute of Electrical Engineers of Japan. C, A publication of Electronics, Information and System Society (ISSN:03854221)

巻号頁・発行日

vol.124, no.3, pp.805-811, 2004-03-01

被引用文献数

9 11

---

Dozens of people are killed every year when they fall off of train platforms, making this an urgent issue to be addressed by the railroads, especially in the major cities. This concern prompted the present work that is now in progress to develop a Ubiquitous Stereo Vision based system for safety management at the edge of rail station platforms. In this approach, a series of stereo cameras are installed in a row on the ceiling that are pointed downward at the edge of the platform to monitor the disposition of people waiting for the train. The purpose of the system is to determine automatically and in real-time whether anyone or anything is in the danger zone at the very edge of the platform, whether anyone has actually fallen off the platform, or whether there is any sign of these things happening. The system could be configured to automatically switch over to a surveillance monitor or automatically connect to an emergency brake system in the event of trouble.

著者

萩原 朋道 荒木 光彦

出版者

一般社団法人 電気学会

雑誌

電気学会論文誌C(電子・情報・システム部門誌) (ISSN:03854221)

巻号頁・発行日

vol.110, no.4, pp.235-244, 1990-04-20 (Released:2008-12-19)

参考文献数

5

---

This paper studies properties of limiting zeros, which are defined as zeros of sampled-data systems resulting from continuous-time scalar systems preceded by zero-order hold with sufficiently small sampling period. Firstly, the regions are clarified in which the limiting zeros corresponding to the zeros of the original continuous-time system should exist. Secondly, other limiting zeros are studied, which are always yielded when the relative degree of the original continuous-time system is greater than or equal to 2 and do not have any counterpart of the original continuous-time system. To be specific, stability of such a zero is studied for the case where the relative degree of the original continuous-time system is 2. Using the above two results, a condition is derived on which all the limiting zeros are stable.Furthermore, relating to strong stabilizability of sampled-data systems, which is defined as possibility of being stabilized by a stable controller and is equivalent to the parity interlacing property (a condition on the location of real zeros and real poles), some criteria are given with which to examine whether limiting zeros are real or not.

著者

北山 哲士 安田 恵一郎

出版者

一般社団法人 電気学会

雑誌

電気学会論文誌C(電子・情報・システム部門誌) (ISSN:03854221)

巻号頁・発行日

vol.125, no.5, pp.813-820, 2005 (Released:2005-08-01)

参考文献数

24

被引用文献数

4 8

---

Particle Swarm Optimization (PSO) for mixed integer programming problems is proposed. PSO is mainly a method to find a global or quasi-minimum for a nonlinear and non-convex optimization problem, and few researches about optimization problems with discrete decision variables have been studied. In this paper, we present the treatment of discrete decision variables. To treat discrete decision variables as a penalty function, it is possible to treat all decision variables as a continuous decision variable. As a result, the penalty parameter for the penalty function is needed. In this paper, we also present how to determine the penalty parameter for the penalty function. Through mathematical and structural optimization problems, we examine the validity of PSO for the mixed decision variables.

著者

田村 宏樹 唐 政 石井 雅博

出版者

一般社団法人 電気学会

雑誌

電気学会論文誌C(電子・情報・システム部門誌) (ISSN:03854221)

巻号頁・発行日

vol.123, no.10, pp.1822-1829, 2003 (Released:2004-05-28)

参考文献数

10

---

Constraint satisfaction problem consists of the combination of some constraints, and it is a very difficult problem. The neural network is used as a method of solving constraint satisfaction problems. In this research, we proposed a method of solving constraint satisfaction problems by neural network having self-feedback. The feature of this proposed method is simplifying constraint satisfaction problems. It becomes easy to search an optimum solution by this proposed method. This proposed method was applied to N-queen problem and four-color problem which are constraint satisfaction problems. From Simulation result, this proposed method can solve the N-queen problem and four-color problem at high speed and high performance.

著者

山下 勝己 島袋 敦 Mohammaf R. Asharif

出版者

一般社団法人 電気学会

雑誌

電気学会論文誌C(電子・情報・システム部門誌) (ISSN:03854221)

巻号頁・発行日

vol.121, no.11, pp.1734-1739, 2001-11-01 (Released:2008-12-19)

参考文献数

8

被引用文献数

1

---

In the echo cancellation, the double-talk situation when both the near-end signal and far-end signal are presented degrades the performance of echo cancellation with the LMS or the NLMS algorithms. In order to obtain an acceptable performance even in the presence of the double-talk, the authors proposed the expanded correlation least mean squares (ECLMS) algorithm but this algorithm does not give a fast conver-gence characteristics still. The purpose of this paper is to derive an orthogonal ECLMS algorithm with the lattice strucure in order to speed up the convergence characteristics and to reduce the computational load for the adaptation. The validity of this algorithm is evaluated by computer simulations in the echo cancelling problem.

著者

Rikito Okamoto Shizuka Bando Akio Nozawa

出版者

一般社団法人 電気学会

雑誌

電気学会論文誌C(電子・情報・システム部門誌) (ISSN:03854221)

巻号頁・発行日

vol.136, no.8, pp.1142-1148, 2016-08-01 (Released:2016-08-01)

参考文献数

40

被引用文献数

2

---

There have been a number of investigations into image recognition and the assessment of human physiological states using infrared thermography. Assessing a human's physiological state by infrared thermography typically exploits the skin temperature of the nasal region and forehead, whereas other parts of the face are less frequently used. The present study has developed a method of analyzing facial thermal images (FTIs) by independent component analysis (ICA), a type of blind signal processing (BSP). ICA is a well-known statistical analysis tool that estimates the original source signal from observed mixture signals. When applied to thermal images, ICA is predicted to extract blind signals such as those from other parts of the face. In this study, the authors use ICA to conduct BSP on a series of FTIs. The extracted independent components are shown to represent temperature fluctuations from the opening and closing of the eyes, respiration, truncal sites such as the cheeks and forehead, and possibility of sympathetic nervous system activity. The FTIs reconstructed after the removal of artifacts indicate the local features that the blind signal cannot extract from the original FTIs.

著者

高橋 徹 田島 欣朗 白根 康次 松本 直樹

出版者

一般社団法人 電気学会

雑誌

電気学会論文誌C(電子・情報・システム部門誌) (ISSN:03854221)

巻号頁・発行日

vol.115, no.1, pp.167-168, 1994-12-20 (Released:2008-12-19)

参考文献数

2

著者

松山 智恵子 中島 豊四郎 石井 直宏

出版者

一般社団法人 電気学会

雑誌

電気学会論文誌C(電子・情報・システム部門誌) (ISSN:03854221)

巻号頁・発行日

vol.124, no.12, pp.2482-2488, 2004 (Released:2005-03-01)

参考文献数

25

被引用文献数

2 2

---

In general, mathematical subjects are used for programming education in universities. In this case, many students lose the interest in the programming because the students have the preconception that is difficult to program by using the mathematical expressions. Especially beginners of the programming are a tendency to lose the interest. Therefore it is pointed out to use the subjects which do not need mathematical knowledge as much as possible. In this paper the authors have tried to make animation that are generated by programs instead of the mathematical subjects in a beginners’ programming class using C language used in a wide-ranging field. The authors discuss about improvements of the interest of students for programming by the try that is to make animation by programs in a programming class and refer to its effects.