1997 IEEE Autotestcon Proceedings AUTOTESTCON '97. IEEE Systems Readiness Technology Conference. Systems Readiness Supporting Global Needs and Awareness in the 21st Century最新文献
Pub Date : 1997-09-22DOI: 10.1109/AUTEST.1997.633680
J.V. Collins, J. Spann
GDE Systems Inc. has created a prototype virtual training simulator of the advanced support equipment test set (a GDE Systems Inc. missile/bomb tester). This prototype incorporates CAD geometry, photo-specific texture maps, audio feedback, dynamic motion, and simulated human-machine interaction. We have developed methods to migrate these technologies to the desktop personal computer and distributed competing environment using Internet tools such as the virtual reality modeling language (VRML) this will enable wide distribution of virtual reality (VR) models to desktop users at air logistic centers, depots, and training facilities.
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Pub Date : 1997-09-22DOI: 10.1109/AUTEST.1997.633676
G. Guerra, R. Marsch
The Air Force currently has three major Automatic Test System for turboprop and jet engines the Automated Ground Engine Test Set (AGETS) Engine Test/Trim Automated System (ETTAS) second generation Engine Test/Trim Automated System (ETTAS II), and PACER COMET III (PC III). During the development and maintenance of engine software test programs used by the three systems a certain amount of on-site engine run time is required to develop, test and verify software changes. This on-site time is costly in TDY, contractor site visits, engine fuel used, man-hours and missed production time of the test cell. A real-time simulation of the engine with concurrent signals and stimulus that match test cell transducers would replace the on-site runtime needed of the engine and test cell crew. SAALC/LDAD, the engine tester program management office, has placed CACI International, Inc. on contract to produce a Real-Time, Multiple Signal, Dynamic Engine Simulator (RTMSDES) from COTS hardware and software. The program management office's goal is to develop a dynamic, real-time simultaneous set of stimuli for the engine testers mentioned above for software maintenance and development personnel. This paper details the COTS solution we are developing using, the latest VXIbus technology. Topics discussed include the methods we used to simulate the real-time stimulus of engines as well the selection of COTS hardware required to perform the stimulus. The paper also discusses our implementation of LabView 4.01 as the simulation software environment, and Windows NT as the operating system.
美国空军目前有三个主要的涡轮螺旋桨发动机和喷气发动机自动测试系统，即自动地面发动机试验台(AGETS)发动机测试/内饰自动化系统(ETTAS)第二代发动机测试/内饰自动化系统(ETTAS II)和PACER COMET III (PC III)。在开发和维护这三个系统使用的发动机软件测试程序期间，需要一定数量的现场发动机运行时间来开发、测试和验证软件更改。这种现场时间在TDY，承包商现场访问，发动机燃料使用，工时和测试单元错过的生产时间方面是昂贵的。与测试单元传感器相匹配的具有并发信号和刺激的发动机实时仿真将取代发动机和测试单元人员所需的现场运行时间。SAALC/LDAD发动机测试项目管理办公室已经与CACI国际公司签订了一份合同，由COTS硬件和软件生产实时、多信号、动态发动机模拟器(RTMSDES)。项目管理办公室的目标是为上述软件维护和开发人员的发动机测试人员开发一套动态的、实时的同步刺激。本文详细介绍了我们使用最新的vxi总线技术开发的COTS解决方案。讨论的主题包括我们用来模拟发动机实时刺激的方法，以及执行刺激所需的COTS硬件的选择。本文还讨论了以LabView 4.01为仿真软件环境，以Windows NT为操作系统的实现。
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Pub Date : 1997-09-22DOI: 10.1109/AUTEST.1997.633649
J. Molnár
A survey of common analog fault diagnostic techniques is provided. The focus is on providing information to facilitate the use of viable techniques suited for a problem definition. The level of understanding of the analog system is correlated with the type of techniques best suited for the diagnostic system. Reviewed are techniques from Control Theory, Probability Theory, Computational Expert Systems, and Computational Artificial intelligence. The Control Theory techniques are suited best for system diagnostic problems where the system model is accurately understood. Techniques that employ Probability Theory are valuable for addressing uncertainty that arises in diagnostics of systems affected by noise. Computational Expert Systems address the problem of diagnostics by creating a data situations where the diagnostic process is accurately understood. Computational Artificial Intelligence techniques are presented as being best suited for systems where little reliable knowledge is known. The analysis does not preclude the use of any technique, but rather addresses efficiency of application.
{"title":"Summary and applicability of analog fault detection/isolation techniques","authors":"J. Molnár","doi":"10.1109/AUTEST.1997.633649","DOIUrl":"https://doi.org/10.1109/AUTEST.1997.633649","url":null,"abstract":"A survey of common analog fault diagnostic techniques is provided. The focus is on providing information to facilitate the use of viable techniques suited for a problem definition. The level of understanding of the analog system is correlated with the type of techniques best suited for the diagnostic system. Reviewed are techniques from Control Theory, Probability Theory, Computational Expert Systems, and Computational Artificial intelligence. The Control Theory techniques are suited best for system diagnostic problems where the system model is accurately understood. Techniques that employ Probability Theory are valuable for addressing uncertainty that arises in diagnostics of systems affected by noise. Computational Expert Systems address the problem of diagnostics by creating a data situations where the diagnostic process is accurately understood. Computational Artificial Intelligence techniques are presented as being best suited for systems where little reliable knowledge is known. The analysis does not preclude the use of any technique, but rather addresses efficiency of application.","PeriodicalId":369132,"journal":{"name":"1997 IEEE Autotestcon Proceedings AUTOTESTCON '97. IEEE Systems Readiness Technology Conference. Systems Readiness Supporting Global Needs and Awareness in the 21st Century","volume":"4 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1997-09-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114966168","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 : 1997-09-22DOI: 10.1109/AUTEST.1997.633660
M. Ben-Bassat, I. Beniaminy, D. Joseph
This paper focuses on the use of commercial off-the-shelf (COTS) expert systems in integrated diagnostics (1D) for military applications. Expert systems have developed and matured over the past several years to become a viable tool capable of functioning as a procedural tool for identifying diagnostic requirements, analyzing test system capabilities, and providing seamless diagnostic data transfer from requirement to analysis to operations. The most important differentiating characteristics of expert systems are their modeling methods, and their architecture. The modeling method drastically affects the time required to build a model, and the architecture must be open enough to integrate with the many tools used in engineering, deployment, and maintenance of the supported equipment throughout its life cycle. In this article, we present the Fault Modeling method, which has been field-proven over the past decade as flexible enough to meet the challenges of different lifecycle tasks, as well as lending itself to learning-self-improvement over time, even when starting with no knowledge. Expert systems using this model feature rapid deployment, and are able to cover the entire ID process including: capture of existing data, analysis of fault detection and isolation capabilities of the unit under test, and a means to assess diagnostic system designs early in the development phase. The systems integrate easily with simulators, automatic test equipment (ATE), and portable maintenance aid (PMA) equipment.
{"title":"Improving test strategies and fault isolation with expert systems","authors":"M. Ben-Bassat, I. Beniaminy, D. Joseph","doi":"10.1109/AUTEST.1997.633660","DOIUrl":"https://doi.org/10.1109/AUTEST.1997.633660","url":null,"abstract":"This paper focuses on the use of commercial off-the-shelf (COTS) expert systems in integrated diagnostics (1D) for military applications. Expert systems have developed and matured over the past several years to become a viable tool capable of functioning as a procedural tool for identifying diagnostic requirements, analyzing test system capabilities, and providing seamless diagnostic data transfer from requirement to analysis to operations. The most important differentiating characteristics of expert systems are their modeling methods, and their architecture. The modeling method drastically affects the time required to build a model, and the architecture must be open enough to integrate with the many tools used in engineering, deployment, and maintenance of the supported equipment throughout its life cycle. In this article, we present the Fault Modeling method, which has been field-proven over the past decade as flexible enough to meet the challenges of different lifecycle tasks, as well as lending itself to learning-self-improvement over time, even when starting with no knowledge. Expert systems using this model feature rapid deployment, and are able to cover the entire ID process including: capture of existing data, analysis of fault detection and isolation capabilities of the unit under test, and a means to assess diagnostic system designs early in the development phase. The systems integrate easily with simulators, automatic test equipment (ATE), and portable maintenance aid (PMA) equipment.","PeriodicalId":369132,"journal":{"name":"1997 IEEE Autotestcon Proceedings AUTOTESTCON '97. IEEE Systems Readiness Technology Conference. Systems Readiness Supporting Global Needs and Awareness in the 21st Century","volume":"68 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1997-09-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114997815","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 : 1997-09-22DOI: 10.1109/AUTEST.1997.633666
G. Hardenburg
Traditional automatic test system (ATS) test programs are written in various versions of the abbreviated test language for all systems (ATLAS). Many of these versions are based on the commercial standard ATLAS 626 or the IEEE standard C/ATLAS 716. One of the key features of ATLAS is its ability to describe signals in an English-based, human readable format. This feature allows test engineers to write test programs utilizing verbs such as setup and apply, to identify signals such as AC signal and DC signal, and to utilize terms like voltage, frequency, and DC offset.
{"title":"Signal oriented test programs: fact or fiction?","authors":"G. Hardenburg","doi":"10.1109/AUTEST.1997.633666","DOIUrl":"https://doi.org/10.1109/AUTEST.1997.633666","url":null,"abstract":"Traditional automatic test system (ATS) test programs are written in various versions of the abbreviated test language for all systems (ATLAS). Many of these versions are based on the commercial standard ATLAS 626 or the IEEE standard C/ATLAS 716. One of the key features of ATLAS is its ability to describe signals in an English-based, human readable format. This feature allows test engineers to write test programs utilizing verbs such as setup and apply, to identify signals such as AC signal and DC signal, and to utilize terms like voltage, frequency, and DC offset.","PeriodicalId":369132,"journal":{"name":"1997 IEEE Autotestcon Proceedings AUTOTESTCON '97. IEEE Systems Readiness Technology Conference. Systems Readiness Supporting Global Needs and Awareness in the 21st Century","volume":"41 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1997-09-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128367859","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 : 1997-09-22DOI: 10.1109/AUTEST.1997.633637
M. Gooding
Precision physical dimensional measurements are required for many aerospace structures to assure adherence to demanding tolerances. Data collection devices have typically interfaced to specific dimensional gauges to measure physical attributes of a manufactured part. This data is usually transferred to a computer via cable. This paper describes a new approach to data collection at Boeing Defense and Space Group manufacturing centers. This new approach uses a wireless, precision data collector that incorporates an integral laser bar-code reader and interfaces to industry standard gauges. Data is transferred by an internal 2.4 GHz radio to the statistical process control (SPC) data base used throughout The Boeing Company.
{"title":"Handheld precision test data collector","authors":"M. Gooding","doi":"10.1109/AUTEST.1997.633637","DOIUrl":"https://doi.org/10.1109/AUTEST.1997.633637","url":null,"abstract":"Precision physical dimensional measurements are required for many aerospace structures to assure adherence to demanding tolerances. Data collection devices have typically interfaced to specific dimensional gauges to measure physical attributes of a manufactured part. This data is usually transferred to a computer via cable. This paper describes a new approach to data collection at Boeing Defense and Space Group manufacturing centers. This new approach uses a wireless, precision data collector that incorporates an integral laser bar-code reader and interfaces to industry standard gauges. Data is transferred by an internal 2.4 GHz radio to the statistical process control (SPC) data base used throughout The Boeing Company.","PeriodicalId":369132,"journal":{"name":"1997 IEEE Autotestcon Proceedings AUTOTESTCON '97. IEEE Systems Readiness Technology Conference. Systems Readiness Supporting Global Needs and Awareness in the 21st Century","volume":"12 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1997-09-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129367694","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 : 1997-09-22DOI: 10.1109/AUTEST.1997.643995
S. Navarro, L. Gearhart, G. Smith, J. B. Schroeder
The Joint Strike Fighter (JSF) is striving towards a unified support concept known as Autonomic Logistics. Autonomic Logistics implies that the various support systems (diagnostic, maintenance, mission planning, and logistics) function as "smart" systems that need not continually be fed data via human intervention. In order to achieve such autonomy the diagnostic, maintenance, mission planning, and logistics systems must be integrated. To achieve this integrated system of systems, a tool must be available to assist the system designers. This paper will describe the characteristics of such a system design tool and describe the work to date to develop such a tool.
{"title":"The integrated diagnostic virtual test bench","authors":"S. Navarro, L. Gearhart, G. Smith, J. B. Schroeder","doi":"10.1109/AUTEST.1997.643995","DOIUrl":"https://doi.org/10.1109/AUTEST.1997.643995","url":null,"abstract":"The Joint Strike Fighter (JSF) is striving towards a unified support concept known as Autonomic Logistics. Autonomic Logistics implies that the various support systems (diagnostic, maintenance, mission planning, and logistics) function as \"smart\" systems that need not continually be fed data via human intervention. In order to achieve such autonomy the diagnostic, maintenance, mission planning, and logistics systems must be integrated. To achieve this integrated system of systems, a tool must be available to assist the system designers. This paper will describe the characteristics of such a system design tool and describe the work to date to develop such a tool.","PeriodicalId":369132,"journal":{"name":"1997 IEEE Autotestcon Proceedings AUTOTESTCON '97. IEEE Systems Readiness Technology Conference. Systems Readiness Supporting Global Needs and Awareness in the 21st Century","volume":"38 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1997-09-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127379854","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 : 1997-09-22DOI: 10.1109/AUTEST.1997.633591
T. Timcho
This paper discusses a practical approach to the use of Commercial-Off-the-Shelf (COTS) tools to implement Automatic Test Equipment (ATE) and Unit Under Test (UUT) signal-based models to support both new Test Program Set (TPS) development and TPS rehost activities. This modeling technique also provides a standard to which existing and future ATEs and UUTs can be modeled and used for analysis and comparisons. The signal-based model is implemented via a Structured Query Language (SQL) Relational Data Base Management System (RDBMS). COTS Rapid Application Development (RAD) tools, such as Microsoft/sup (R)/ Visual Basic/sup (R)/ Microsoft Access/sup (R)/ and PowerBuilder/sup (R)/, are employed to implement interfaces to the SQL database model and to provide the necessary algorithms for data comparison, model reuse and other manipulations of the model data. After models are established for both the ATE and UUTs, ATU/UUT compatibility analysis can be performed to identify any potential incompatibilities. This information can be used to optimize the selection of a target ATE for a selected group of UUTs. It can also be used to identify any signal deficiencies in the target ATE that require ATE enhancements or Interface Test Adapter (ITA) signal conditioning, to ensure UUT compatibility.
本文讨论了一种使用商用现货(COTS)工具来实现自动测试设备(ATE)和测试下单元(UUT)信号模型的实用方法，以支持新的测试程序集(TPS)开发和TPS重新主机活动。这种建模技术还提供了一个标准，现有的和未来的ate和uut可以按照该标准建模，并用于分析和比较。基于信号的模型通过结构化查询语言(SQL)关系数据库管理系统(RDBMS)实现。采用Microsoft/sup (R)/ Visual Basic/sup (R)/ Microsoft Access/sup (R)/和PowerBuilder/sup (R)/等COTS快速应用开发(RAD)工具实现SQL数据库模型的接口，并为数据比较、模型重用和模型数据的其他操作提供必要的算法。在为ATE和UUT建立模型后，可以进行ATU/UUT兼容性分析，以识别任何潜在的不兼容性。此信息可用于为选定的uut组优化目标ATE的选择。它还可用于识别目标ATE中需要ATE增强或接口测试适配器(ITA)信号调理的任何信号缺陷，以确保UUT兼容性。
{"title":"Signal-based modeling of ATE and UUTs using COTS based software tools","authors":"T. Timcho","doi":"10.1109/AUTEST.1997.633591","DOIUrl":"https://doi.org/10.1109/AUTEST.1997.633591","url":null,"abstract":"This paper discusses a practical approach to the use of Commercial-Off-the-Shelf (COTS) tools to implement Automatic Test Equipment (ATE) and Unit Under Test (UUT) signal-based models to support both new Test Program Set (TPS) development and TPS rehost activities. This modeling technique also provides a standard to which existing and future ATEs and UUTs can be modeled and used for analysis and comparisons. The signal-based model is implemented via a Structured Query Language (SQL) Relational Data Base Management System (RDBMS). COTS Rapid Application Development (RAD) tools, such as Microsoft/sup (R)/ Visual Basic/sup (R)/ Microsoft Access/sup (R)/ and PowerBuilder/sup (R)/, are employed to implement interfaces to the SQL database model and to provide the necessary algorithms for data comparison, model reuse and other manipulations of the model data. After models are established for both the ATE and UUTs, ATU/UUT compatibility analysis can be performed to identify any potential incompatibilities. This information can be used to optimize the selection of a target ATE for a selected group of UUTs. It can also be used to identify any signal deficiencies in the target ATE that require ATE enhancements or Interface Test Adapter (ITA) signal conditioning, to ensure UUT compatibility.","PeriodicalId":369132,"journal":{"name":"1997 IEEE Autotestcon Proceedings AUTOTESTCON '97. IEEE Systems Readiness Technology Conference. Systems Readiness Supporting Global Needs and Awareness in the 21st Century","volume":"18 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1997-09-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132858027","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 : 1997-09-22DOI: 10.1109/AUTEST.1997.633640
Mouna Samaan, Stephen Cook
Complex systems such as an aircraft requires continuous development due to rapid changes in technology and the fast growing demands of users. Users are mainly interested in collecting test data to monitor performance of existing systems for future modifications due to demands imposed by users requirements. This is normally achieved through a series of instrumented test nights that telemeter data of interest to a night centre. The prime concern of this research work is the efficient utilisation of telemetry frame formats known as the Data Cycle Map (DCM). DCM represents parameters sampled at different rates during night testing compliant to a telemetry standard known as the Inter Range instrumentation Group (IRIG). In a previously reported research work, the author presented a methodology based on algorithms similar to those adopted in memory management techniques within a multi-environment operating systems to optimally utilise the space allocation for a telemetry frame. In this paper, the author adopts the previous work in an interactive user-friendly environment using Visual C++. This approach, will provide users with visualisation and flexibility to choose between different Past or intermediate DCM in a more efficient approach. The framework provides an effective DCM utilisation, yet requires the intervention of the user.
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Pub Date : 1997-09-22DOI: 10.1109/AUTEST.1997.643997
J. Arena
This paper describes some of the key issues developers must address in a test program set (TPS) rehosting plan. Examples and success stories are used to help describe the translation of three legacy test program sets onto modern board test equipment, thereby extending the useful life of fielded systems and preserving the considerable investment made in developing the TPSs.
{"title":"Rehosting legacy test program sets from military ATE","authors":"J. Arena","doi":"10.1109/AUTEST.1997.643997","DOIUrl":"https://doi.org/10.1109/AUTEST.1997.643997","url":null,"abstract":"This paper describes some of the key issues developers must address in a test program set (TPS) rehosting plan. Examples and success stories are used to help describe the translation of three legacy test program sets onto modern board test equipment, thereby extending the useful life of fielded systems and preserving the considerable investment made in developing the TPSs.","PeriodicalId":369132,"journal":{"name":"1997 IEEE Autotestcon Proceedings AUTOTESTCON '97. IEEE Systems Readiness Technology Conference. Systems Readiness Supporting Global Needs and Awareness in the 21st Century","volume":"2 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1997-09-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121809094","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}
1997 IEEE Autotestcon Proceedings AUTOTESTCON '97. IEEE Systems Readiness Technology Conference. Systems Readiness Supporting Global Needs and Awareness in the 21st Century
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