Remote Diagnosis System Research Articles

The Remote Warning and Diagnosis System for CNC Machine Tools

To meet the practical demands of some firms making CNC machine tools, a remote warning and diagnosis system is designed and introduced in this paper. The on-site information collection and communication module which is used to monitor the equipments can predict the failure before it occurs and send the data to the information center. It helps to reduce the failure and efficiently prevents serious accidents from happening. The advantage of the system is that it improves the remote service and repair, which makes it important for the designing of the remote monitoring system for large-scale mechanical and electrical integration products such as central air conditioning and elevator.

Remote Monitoring and Diagnosis System of Rolling Mill Based on CORBA and SOAP/Web Service Technology

A detailed solution to the remote monitoring and diagnosis system for a rolling mill is introduced. The hardware and software structure of remote monitoring and diagnosis system is presented. The structure of the system is made up of four subsystems, namely online monitoring subsystem, data servo subsystem, database service subsystem and www server subsystem. Software module of system includes seven parts, namely online monitoring module, data query module, fault information query module, trend analysis module, diagnosis analysis module, engineer station module and eigenvalue query module. The system adopts B/S model and integrates CORBA technology with SOAP/Web Service technology. It makes dynamic display and traversing for a great deal of on-line data and Firewall traversal possible. It has run a long time that proves that the system interface is friendly and easy to use. It has better security, good portability, expandability and stability. It can judge the running-condition of a rolling mill in real time.

A Grid-Based Remote Monitoring and Diagnosis System for the Railway Roadbed Roller Compaction

With the development of the high speed rail, it is significant to monitor the filler compaction quality of the railway roadbed roller compaction, which can ensure that the train runs securely and smoothly. In order to solve the problems about high subjectivity and low accuracy, the bad flexibility and the low compatibility of the monitoring center existing in the traditional roller compaction at present, especially the serious phenomenon “information islet”, the paper introduces Grid Technology to the roadbed roller compaction remote monitoring model. An example of application research is experimented in WuGuang dedicated passenger line, which has shown that the grid-based system can achieve more accurate remote monitoring and provide an intelligent integration information platform for different users to control the distributed monitoring information.

DSP를 적용한 전력용 DC 평활 커패시터의 이더넷 원격 고장진단시스템 개발

Electrolytic power capacitors today form essential components for virtually any power electronic system such as DC/DC converter or UPS. Frequently, electrolytic capacitors for DC link voltage smoothing are the key components which determine the life cycle of the whole unit and often are responsible for converter breakdown failures.<BR> In this paper, ethernet-based remote diagnosis system for DC voltage smoothing capacitor using DSP control board is developed. To estimate the status of the capacitor, the equivalent series resistor(ESR) of the component has to be determined. The ESR detection scheme is based on the determination of the capacitor ripple power losses calculated (Tom DC link voltage/current measurement. Experimental results show the veridity and reliability of the proposed ethernet-based remote on-line capacitor diagnosis system.

The Design of Remote Monitoring and Diagnosis System Based on Virtual Instrument

Based on the background of the continuous development and application extensive of the remote monitoring and diagnosis, we develop a remote fault diagnosis platform,which can be used as remote fault diagnosis service window. The client and the server can be used for data analysis and processing, also on data management to achieve remote monitoring and diagnosis. Meanwhile we design a remote data analysis system in LabVIEW environment to realize the signal analysis and transmission. In order to strengthen the system network measurement function, this paper introduces DataSocket and TCP/IP technology in the remote transmission, which is a new technique in improving the ability of the remote data transmission.

Study on XML-Based Apriori Algorithm Applying to Remote Diagnosis System for Hoist

According to the data characteristics in the hoister operation process and the network requirements of fault diagnosis system, this paper proposes a XML-based apriori algorithm, and the algorithm is applied to hoist remote fault diagnosis system. The experiment result shows that applying the system can make the hoist fault diagnosis more scientific, reasonable and improve the efficiency and accuracy of diagnosis.

Web Service and Multi-Agent Based Fault Diagnosis System for MSW Incinerators

Based on Web Service and Multi-agents technology, this paper proposes to build a remote distributed fault diagnosis system for equipments of an incineration plant which requires real-time diagnosis in a widely distributed environment. The system is modeled and implemented by multi-agent technology and is composed of a large number of agents, which are deployed at different web sites. To extend system capabilities, a user can provide additional diagnosis procedures, diagnosis services or data services. Based on diagnosis goals, relevant agents are assembled together to form a remote collaborative diagnosis system. The system can be used in any incineration plants, which greatly simplifies the deployment and maintenance efforts.

Design of embedded mobile GIS for customizable data wireless transmission

The embedded Geographics Information System ( GIS) system for customizable wireless data transmission consists of hardware component, data center server, and software system. Taking NXP ARM microprocessor as the core and combining the General Packet Radio Service ( GPRS) communication network characteristics, the authors focused on the design process of embedded GIS system for customizable data wireless transmission, proposed the implementation scheme in detail, analyzed the hardware component design process, the firmware program development process and customizable data based on Extensible Markup Language ( XML) implementation process. Finally, a confirming platform based on automobile remote faulty diagnosis and maintenance system was constructed. The experimental results show this system realizes the function of embedded GIS for customizable data wireless transmission system, and it has good flexibility, extendibility and maintainability.

Study on Medical Micro-Image Mosaic with SIFT Features

In order to obtain panoramic view of medical micro-image in remote medical diagnosis system, we should mosaic micro-image sequence accurately in remote node. SIFT features are invariant to image scaling, rotation and translation. The aim of this study is to mosaic micro-image sequence by extracting SIFT features. Firstly, search coordinate of potential features through Gaussian pyramid (with 7 octaves × 6 scales) and then filter pseudo-keypoints. Secondly, describe these features with 128-D vector. The next step is to calculate matching keypoint pairs between two time-successive images according to minimum Euclidean distance. In this step, standard deviation comparing is proposed to eliminate wrong matching pairs and appropriate threshold(8000) through experiment is used to insure matching pairs. Then, construct image motion equation considering rotation and translation and compute motion parameter by solving equation according matching pairs. Finally mosaic all images. These steps are applied in 5 micro-image sequences such as slices of lung tissue, spleen, kidney, frog blood cell and sunflower tissue. The experiment results show that the gap between two images is vanishing and the proposed method can satisfy with medical micro-images sequence mosaic.

REMOTE DIAGNOSIS SYSTEM OF HYDRO-GENERATOR SETS BASED ON WAVELET-NEURAL NETWORK

According to diversity and complexity of hydro-generator sets faults, a type of remote monitoring and diagnosis system is brought forward which is based on wavelet packet decomposition, BP Neural Network and Matlab Web Server.

Configurable remote diagnosis system based on SIC

A model of a configurable remote fault diagnosis system (FDS), with modules encapsulated into a software intelligent chip (SIC), is proposed. All the SICs of such a system are driven by the system data, the collected data of fault device or the data engendered during the diagnosing process. A prototype software platform for customizing FDS, include a system developer and a system builder, is developed. With the developer, a user can conveniently design their specific FDS to meet with the different requirements of diagnosis applications and flexibly configure the SICs of the FDS accordant with the logical diagnosing procedure. With the system builder, the configuration scheme of specific FDS completed with the developer can be loaded and then a practical FDS will be constructed to serve as the fault device. As an example, a case-based reasoning FDS is developed with the platform. The result shows that it is feasible and reliable .

植物形態画像による遠隔生育診断システムの開発

植物形態画像による遠隔生育診断システムの開発

Use of Dynamic Telepathology in Mohs Surgery

BACKGROUND Telepathology is an emerging technology for remote pathology consultation and diagnosis. OBJECTIVE To assess the diagnostic accuracy and utility of a dynamic telepathology system in the setting of Mohs surgery. METHODS Using a dynamic telepathology system, a single dermatopathologist at a remote site assessed the following cases: (1) 50 fixed-tissue slides of basal and squamous cell carcinomas for pathologic diagnosis; (2) 40 frozen-section slides from Mohs surgery for the presence or absence of tumor; (3) 20 frozen-section slides from Mohs surgery for intraoperative consultation with the Mohs surgeon. All 110 slides were then randomly reviewed by the same dermatopathologist by conventional light microscopy. Telepathology and conventional light microscopy diagnoses were then compared. RESULTS There was complete agreement between telepathology and conventional light microscopy diagnoses. CONCLUSION Dynamic telepathology is a convenient, useful, and accurate system for remote diagnosis and consultation in the setting of Mohs surgery.

Web-Based Fault Diagnostic and Learning System

Web-based technology holds great potential for enabling the rapid dissemination of information and facilitating distributed decision-making. This paper presents a novel knowledge-based multi-agent system for remote fault diagnosis, which is composed of diagnostic and learning agents (DLAs), machine agents (MAs) and a central management agent (CMA). Machines are remotely diagnosed by the DLAs through the communication channels between the MAs and the DLAs. In addition, the DLAs can learn new expertise from the users, and the CMA can update the central knowledge base (CKB) shared by all the DLAs with the valuable expertise. When faults that cannot be solved with the present knowledge base occur, the DLA can acquire new knowledge, translate it into rules using a rule builder, and update the rules into the CKB. The CKB will become mature through a continuous learning process. A prototype system has been developed and used for remote fault diagnostics of tool wear in computer numerically controlled (CNC) machining.

Case Report: Tele-Echo System: A Real-Time Telemedicine System Using Medical Ultrasound Image Sequence

A new for real-time telediagnosis using medical ultrasound (US) image sequences on a public digital network has been implemented and evaluated. The Tele-Echo System compresses and transmits US image sequences in real-time using a network bandwidth up to 1.5 Mbps. This system compresses US image sequences with Motion Picture Experts Group (MPEG) compression algorithm and transmits with Internet protocol (IP) and user datagram protocol (UDP). Experiments were conducted on the Tele-Echo System for US image sequences of the heart. The transmitted US image sequences contained 9% root-mean-square-error (RMSE) and a 30-dB peak signal-to-noise ratio (PSNR) when the size of images was 352 X 240 pixels, and the speed was about 27 frames per second. The experiments confirmed the clinical effectiveness of the Tele-Echo System for remote diagnosis. The transmission of US image sequences was conducted in a few seconds, and some contained noise. The enables real-time ultrasound imag...

Multimedia System for Remote Diagnosis of Complex Placement Machines

Placement machines demand a high availability standard to avoid costly interruptions of the manufacturing process and to ensure a profitable return on the high investment costs. The world-wide use of the machines and the usually complex nature of the occurring failures require the manufacturer to provide an efficient remote service. To solve this problem, a computeraided remote diagnostic system based on the Internet is being developed. It can also be used as the local diagnostic system at the machine. The basis is a central information system that keeps all relevant data for diagnosis. The operator and the expert are both supported by computer-aided tools. Communication between them is established by multimedia procedures.

病害虫の遠隔診断システム

本論文では，狭帯域回線上でビデオ画像通信による病害虫の診断を実施するための機能を提案する．本研究で提案する機能の特徴は，H.261のデータ階層構造を利用して，利用者が注目している画像領域の選択を可能することである．提案する機能により，アナログ電話回線程度の狭帯回線上でも1秒間に8フレーム程度の動きのある高品質の画像を送信することが可能となる．提案する機能をビデオツールに実装し，遠隔診断に適用した実験を行った．実験結果より，提案した機能が有効に働き，狭帯域回線で高品質の画像による遠隔診断が可能であることを確認した．

病害虫の遠隔診断システム

本論文では，コンピュータネットワークを使って，遠隔地から病害虫の診断を実施する遠隔診断システムを提案する．遠隔診断システムは，地理的に離れた場所に存在する利用者がコンピュータネットワークを通して画像データを利用することで，遠隔地に居ながらにして病害虫の診断を可能とするシステムの実現を目指すものである．本論文では，病害虫の遠隔診断システムに要求される機能を明らかにし，それを満足する実験システムを構築した．このシステムを用いて，実際の事例について遠隔診断に適用する実験を行った．実験の結果，システムは有効に機能し，画像による病害虫の遠隔診断が可能であることを確認した．

A telemedicine system for remote cooperative medical imaging diagnosis

Telemedicine is changing the classical form of health care delivery, by providing efficient solutions to an increasing number of new situations: here we consider those which require some type of computer-supported cooperative work (CSCW) between health care professionals located in different clinical sites. This paper presents the design and development of a telemedicine system for remote computer-supported cooperative medical imaging diagnosis. The main and novel component of our system is a new CSCW distributed architecture, comprised by a collaborative toolkit to add audioconferencing, telepointing, window sharing, user's coordination and application synchronization facilities, either to existing or new medical imaging diagnosis applications. In comparison with existing CSCW products, mainly based on centralized architectures, our distributed toolkit is specially designed for telemedicine applications: to allow different levels of sharing between participants, to improve user feedback in highly interactive user interfaces, and to optimize the required communication bandwidth in order to implement a telemedicine CSCW application on almost any telecommunication network. This telemedicine CSCW system has been applied to build a cooperative medical imaging diagnosis application, in which two doctors, located in different hospitals, need to achieve a cooperative diagnosis on haemodynamic studies using cardiac angiography images. The design of the graphical user interface for this kind of telemedicine CSCW systems, a critical component which conforms any telemedicine application, is also addressed with a new methodological approach, to assure the system usability and final user acceptance. The telemedicine cardiac angiography pilot has been implemented, tested and evaluated within the Research Project ‘FEST-Framework for European Services in Telemedicine’ funded by the EU AIM Programme.

A Multi-Windows Multimedia System for Tele-monitoring and Computer-supported Repair

The paper describes a multimedia-broadband communication system for remote ship monitoring, diagnosis, and repair using the screen-sharing facility of workstations and a satellite communication link. It is supposed that on the board a workstation is placed with the capability of sensor data collection from each workstation at shipyard, head office of the shipping company, spare parts stock, spare parts supplier, ship classification society etc.For implementation of screen-sharing feature the X-WINDOW technique has been used, embedded into INTERACTIVE UNIX as operating system, and for implementation of communication functions the Ethernet oriented TCP/IP protocol, that enables, via an IP/X.25 router, to transfer the data over any package-switching communication facility.Integrated into the X-WINDOW system is also a knowledge-based diagnostic system for ship engine, implemented in a hybrid combination of Turbo-PROLOG and C, in which the process of engine diagnosis can be triggered on on-board crew demand, or by an alarm signal within the engine. The system pilot installation has been developed within the MARIN ABC Project of RACE Program of EEC and should be used, along with other video/voice communication and tele-conferencing facilities, for increase the safety and efficiency of ship operation as well as for logistic support and improvement of overall system operation.