Pub Date : 2009-11-06DOI: 10.1109/AUTEST.2009.5314055
D. Lowenstein
Since the start of thermal testing it has always been an offline process. Therefore it has baffled the best industrial engineers for optimizing and balancing flows, added undo complexity for the test engineers to develop real-time tests and made it extremely expensive for low volumes especially in a depot setting. By throwing out all of our previous notions of how and what thermal testing should be, a new design and approach was invented. Using the Toyota Production System model of combining 6sigma and Lean Manufacturing, a new thermal process has been design and implemented. This has allowed the ability for real time testing under temperature in units of one, ability to debug under temperature, and dramatically reduced cycle times, energy and floor space costs. This paper will walk through the strategy, implementation and advantages of using this new approach.
{"title":"Adaptation of thermal testing for real - time testing in both the factory and depot","authors":"D. Lowenstein","doi":"10.1109/AUTEST.2009.5314055","DOIUrl":"https://doi.org/10.1109/AUTEST.2009.5314055","url":null,"abstract":"Since the start of thermal testing it has always been an offline process. Therefore it has baffled the best industrial engineers for optimizing and balancing flows, added undo complexity for the test engineers to develop real-time tests and made it extremely expensive for low volumes especially in a depot setting. By throwing out all of our previous notions of how and what thermal testing should be, a new design and approach was invented. Using the Toyota Production System model of combining 6sigma and Lean Manufacturing, a new thermal process has been design and implemented. This has allowed the ability for real time testing under temperature in units of one, ability to debug under temperature, and dramatically reduced cycle times, energy and floor space costs. This paper will walk through the strategy, implementation and advantages of using this new approach.","PeriodicalId":187421,"journal":{"name":"2009 IEEE AUTOTESTCON","volume":"55 3 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-11-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116568712","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 : 2009-11-06DOI: 10.1109/AUTEST.2009.5314098
L. Kirkland
Re-hosting Test Program Sets (TPS) is a diverse science. Methods of re-host are determined by many multifaceted factors. Some of these factors are: circuit complexity, customer requirements, documentation, optimal circuit coverage, schematics and data availability, existence of and obtainable test specs, legacy TPS History (no-fault-found and could-not duplicate problems or a high quality reliable TPS), quality of unit under test (UUT) data, technology of the TPS (digital, analog, hybrid, etc.), legacy ATEs, Software (SW) development environment, SW tools and translators, interface test adapters (ITA), contractual requirements; mating connectors, test connectors and fixtures and usability and accessibility of existing legacy TPS code. This paper will cover various TPS re-hosting philosophies (see table 1). Also, the paper will discuss the details of using the soft front panel method to duplicate a non-simulated digital legacy TPS.
{"title":"Re-host factors and a method to maintain the integrity of a test","authors":"L. Kirkland","doi":"10.1109/AUTEST.2009.5314098","DOIUrl":"https://doi.org/10.1109/AUTEST.2009.5314098","url":null,"abstract":"Re-hosting Test Program Sets (TPS) is a diverse science. Methods of re-host are determined by many multifaceted factors. Some of these factors are: circuit complexity, customer requirements, documentation, optimal circuit coverage, schematics and data availability, existence of and obtainable test specs, legacy TPS History (no-fault-found and could-not duplicate problems or a high quality reliable TPS), quality of unit under test (UUT) data, technology of the TPS (digital, analog, hybrid, etc.), legacy ATEs, Software (SW) development environment, SW tools and translators, interface test adapters (ITA), contractual requirements; mating connectors, test connectors and fixtures and usability and accessibility of existing legacy TPS code. This paper will cover various TPS re-hosting philosophies (see table 1). Also, the paper will discuss the details of using the soft front panel method to duplicate a non-simulated digital legacy TPS.","PeriodicalId":187421,"journal":{"name":"2009 IEEE AUTOTESTCON","volume":"73 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-11-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122031708","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 : 2009-11-06DOI: 10.1109/AUTEST.2009.5314014
W. Lowdermilk, F. Harris
This paper describes a new high speed Spectrum Analysis technique that tiles a spectral display using a rapid step and dwell spectral sweep. The step and dwell translation operates as a block down converter that translates successive frequency spans to an IF filter which is sampled, A-to-D converted, and processed by a high dynamic range FFT spectrum analyzer. The step and dwell sweep of the analog block down converter enables sequential spectral probes reminiscent of a swept frequency analyzer. The windowed FFT performed during the dwell synthesizes a parallel filter bank that partitions the spectral span into the same resolution bands as an FM spectral sweep through the same spectral span. By performing this second partition in parallel rather than sequentially we can reduce the time duration required to sweep the desired spectral span or we can implement post detection averaging by performing multiple FFTs during each dwell interval. The rapid spectral sweeps that can be realized by this technique make the analyzer well suited for analyzing transient and non periodic input signals.
{"title":"Wide spectral span Spectrum Analysis with an analog step and dwell translation pre-processor to a high dynamic range FFT based spectrum analyzer","authors":"W. Lowdermilk, F. Harris","doi":"10.1109/AUTEST.2009.5314014","DOIUrl":"https://doi.org/10.1109/AUTEST.2009.5314014","url":null,"abstract":"This paper describes a new high speed Spectrum Analysis technique that tiles a spectral display using a rapid step and dwell spectral sweep. The step and dwell translation operates as a block down converter that translates successive frequency spans to an IF filter which is sampled, A-to-D converted, and processed by a high dynamic range FFT spectrum analyzer. The step and dwell sweep of the analog block down converter enables sequential spectral probes reminiscent of a swept frequency analyzer. The windowed FFT performed during the dwell synthesizes a parallel filter bank that partitions the spectral span into the same resolution bands as an FM spectral sweep through the same spectral span. By performing this second partition in parallel rather than sequentially we can reduce the time duration required to sweep the desired spectral span or we can implement post detection averaging by performing multiple FFTs during each dwell interval. The rapid spectral sweeps that can be realized by this technique make the analyzer well suited for analyzing transient and non periodic input signals.","PeriodicalId":187421,"journal":{"name":"2009 IEEE AUTOTESTCON","volume":"26 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-11-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122629188","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 : 2009-11-06DOI: 10.1109/AUTEST.2009.5314085
Xin Zhao, M. Xiao, Yuehong Zhou
Open-architecture test systems were supposed to simplify TPS development, which is an effective way to preserve existing TPS investment from legacy ATE to new test systems. However, when developing test applications, we find it difficult to get perfect performance because of the formality of the interface protocols and Object-levels of granularity. Objects are fine grained and not sufficiently abstracted away from the implementation design. In this paper, Service Oriented Architecture (SOA) is introduced and adopted to solve this challenge. The focus of this paper is on consideration for service-oriented test software architecture, within which, test applications, user interface, diagnostic data and other assets are viewed as services. Each of these services can be mixed and matched to create new, flexible test software. By encapsulating a test application behind capability-based interfaces, these services can be reused and create new value from existing TPSs.
{"title":"Research on the TPS development based on SOA","authors":"Xin Zhao, M. Xiao, Yuehong Zhou","doi":"10.1109/AUTEST.2009.5314085","DOIUrl":"https://doi.org/10.1109/AUTEST.2009.5314085","url":null,"abstract":"Open-architecture test systems were supposed to simplify TPS development, which is an effective way to preserve existing TPS investment from legacy ATE to new test systems. However, when developing test applications, we find it difficult to get perfect performance because of the formality of the interface protocols and Object-levels of granularity. Objects are fine grained and not sufficiently abstracted away from the implementation design. In this paper, Service Oriented Architecture (SOA) is introduced and adopted to solve this challenge. The focus of this paper is on consideration for service-oriented test software architecture, within which, test applications, user interface, diagnostic data and other assets are viewed as services. Each of these services can be mixed and matched to create new, flexible test software. By encapsulating a test application behind capability-based interfaces, these services can be reused and create new value from existing TPSs.","PeriodicalId":187421,"journal":{"name":"2009 IEEE AUTOTESTCON","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-11-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130718148","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 : 2009-11-06DOI: 10.1109/AUTEST.2009.5314021
C. Gorringe
Over the past three years, the IEEE Std 1641 Signal & Test Definition standard has been evolving and maturing. This year its first revision is set to come out. This paper discusses the changes and improvements incorporated within the revised draft standard and identifies how this standard has been integrated into other test standards, such as ATML.
{"title":"IEEE Std 1641","authors":"C. Gorringe","doi":"10.1109/AUTEST.2009.5314021","DOIUrl":"https://doi.org/10.1109/AUTEST.2009.5314021","url":null,"abstract":"Over the past three years, the IEEE Std 1641 Signal & Test Definition standard has been evolving and maturing. This year its first revision is set to come out. This paper discusses the changes and improvements incorporated within the revised draft standard and identifies how this standard has been integrated into other test standards, such as ATML.","PeriodicalId":187421,"journal":{"name":"2009 IEEE AUTOTESTCON","volume":"16 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-11-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122263855","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 : 2009-11-06DOI: 10.1109/AUTEST.2009.5314033
M. Zachos, P. Srinivasa
This paper will cover the background, current spiral developments, roll out, and sustainment of the US Army's newest At-Platform Automatic Test Systems (APATS) equipment for TWVs (Tactical Wheeled Vehicles). The equipment, called the SWICE (Smart Wireless Internal Combustion Engine) system, was developed for vehicle diagnostics systems in at-platform and embedded applications, including prognostics.
{"title":"Vehicle embedded health monitoring and diagnostic system","authors":"M. Zachos, P. Srinivasa","doi":"10.1109/AUTEST.2009.5314033","DOIUrl":"https://doi.org/10.1109/AUTEST.2009.5314033","url":null,"abstract":"This paper will cover the background, current spiral developments, roll out, and sustainment of the US Army's newest At-Platform Automatic Test Systems (APATS) equipment for TWVs (Tactical Wheeled Vehicles). The equipment, called the SWICE (Smart Wireless Internal Combustion Engine) system, was developed for vehicle diagnostics systems in at-platform and embedded applications, including prognostics.","PeriodicalId":187421,"journal":{"name":"2009 IEEE AUTOTESTCON","volume":"171 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-11-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124172460","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 : 2009-11-06DOI: 10.1109/AUTEST.2009.5314012
J. Sheppard, Stephyn G. W. Butcher, P. Donnelly
The US Navy has been supporting the demonstration of several IEEE standards with the intent of implementing these standards for future automatic test system procurement. In this paper, we discuss the second phase of a demonstration focusing on the IEEE P1232 AI-ESTATE standard. This standard specifies exchange formats and service interfaces for diagnostic reasoners. The first phase successfully demonstrated the ability to exchange diagnostic models through semantically enriched XML files. The second phase is focusing on the services and has been implemented using a web-based, service-oriented architecture. Here, we discuss implementation issues and preliminary results.
{"title":"Standard Diagnostic Services for the ATS framework","authors":"J. Sheppard, Stephyn G. W. Butcher, P. Donnelly","doi":"10.1109/AUTEST.2009.5314012","DOIUrl":"https://doi.org/10.1109/AUTEST.2009.5314012","url":null,"abstract":"The US Navy has been supporting the demonstration of several IEEE standards with the intent of implementing these standards for future automatic test system procurement. In this paper, we discuss the second phase of a demonstration focusing on the IEEE P1232 AI-ESTATE standard. This standard specifies exchange formats and service interfaces for diagnostic reasoners. The first phase successfully demonstrated the ability to exchange diagnostic models through semantically enriched XML files. The second phase is focusing on the services and has been implemented using a web-based, service-oriented architecture. Here, we discuss implementation issues and preliminary results.","PeriodicalId":187421,"journal":{"name":"2009 IEEE AUTOTESTCON","volume":"3 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-11-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115928626","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 : 2009-11-06DOI: 10.1109/AUTEST.2009.5314026
M. Itskovich
This paper proposes an area efficient signal processing architecture to perform Iddt test calibration through vector multiplication. The design follows the Field Programmable Array organization, and capitalizes on the unique behavior of binary encoded signals to implement compact multiply elements. Vectors with 8 bit values were multiplied at a rate of 300kHz, independently of vector size.
{"title":"Area efficient vector multiplication for IDDT test calibration","authors":"M. Itskovich","doi":"10.1109/AUTEST.2009.5314026","DOIUrl":"https://doi.org/10.1109/AUTEST.2009.5314026","url":null,"abstract":"This paper proposes an area efficient signal processing architecture to perform Iddt test calibration through vector multiplication. The design follows the Field Programmable Array organization, and capitalizes on the unique behavior of binary encoded signals to implement compact multiply elements. Vectors with 8 bit values were multiplied at a rate of 300kHz, independently of vector size.","PeriodicalId":187421,"journal":{"name":"2009 IEEE AUTOTESTCON","volume":"13 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-11-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125325956","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 : 2009-11-06DOI: 10.1109/AUTEST.2009.5314047
Jiangbin Zhao, Jiankang K. Wu, T. Shi, Jianping Xuan
Autonomous smart sensor is a highly integrated turn-key device, operates independently and owns itself life cycle. Networked sensors exchange information with protocols; we designed an application-layer protocol named AgileSN making sensor nodes interoperable and interchangeable. AgileSN sensor node itself and captured data that protocol carried are self-descriptive, with these smart capabilities, sensor nodes can be automatically detected or searched by interested peers or sink nodes, and sensor data can be parsed dynamically on the fly without human intervention, made autonomous sensor nodes plug and play in the network world. Like WEB system, well accepted network protocol make networked sensors interchangeable and interoperable, universal sensor tools are possible to process sensed data. We have designed a component-based software tool for sensor application development. In this software environment, all application functionalities are realized through software components, each component is designed to finish a special task, like reading data from networked sensors, data processing, visual presentation, network or local file I/O, HMI, etc. sensor data is processed sequentially by several components through data flow. A component can operate in its own thread, carefully designed component makes the whole data processing flow operates in pipeline mode, greatly improve data processing throughput. Components and data routes can be created and destroyed at runtime, so the application system functionality is reconfigured. We apply the Petri Net tool to model components and the whole application system, investigate their function and performance, present a non-collision high-performance soft-bus for inter-component data transfer, investigate the hazard phenomenon that exists in a multi-input component, and propose technical means to eliminate it.
{"title":"Networked autonomous smart sensors and dynamic reconfigurable application development tool for online monitoring systems","authors":"Jiangbin Zhao, Jiankang K. Wu, T. Shi, Jianping Xuan","doi":"10.1109/AUTEST.2009.5314047","DOIUrl":"https://doi.org/10.1109/AUTEST.2009.5314047","url":null,"abstract":"Autonomous smart sensor is a highly integrated turn-key device, operates independently and owns itself life cycle. Networked sensors exchange information with protocols; we designed an application-layer protocol named AgileSN making sensor nodes interoperable and interchangeable. AgileSN sensor node itself and captured data that protocol carried are self-descriptive, with these smart capabilities, sensor nodes can be automatically detected or searched by interested peers or sink nodes, and sensor data can be parsed dynamically on the fly without human intervention, made autonomous sensor nodes plug and play in the network world. Like WEB system, well accepted network protocol make networked sensors interchangeable and interoperable, universal sensor tools are possible to process sensed data. We have designed a component-based software tool for sensor application development. In this software environment, all application functionalities are realized through software components, each component is designed to finish a special task, like reading data from networked sensors, data processing, visual presentation, network or local file I/O, HMI, etc. sensor data is processed sequentially by several components through data flow. A component can operate in its own thread, carefully designed component makes the whole data processing flow operates in pipeline mode, greatly improve data processing throughput. Components and data routes can be created and destroyed at runtime, so the application system functionality is reconfigured. We apply the Petri Net tool to model components and the whole application system, investigate their function and performance, present a non-collision high-performance soft-bus for inter-component data transfer, investigate the hazard phenomenon that exists in a multi-input component, and propose technical means to eliminate it.","PeriodicalId":187421,"journal":{"name":"2009 IEEE AUTOTESTCON","volume":"6 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-11-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125215316","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 : 2009-11-06DOI: 10.1109/AUTEST.2009.5314003
Manzar Abbas, G. Vachtsevanos
In complex systems, there are few critical failure modes. Prognostic models are focused at predicting the evolution of those critical faults, assuming that other subsystems in the same system are performing according to their design specifications. In practice, however, all the subsystems are undergoing deterioration that might accelerate the time evolution of the critical fault mode. This paper aims at analyzing this aspect, i.e. interaction between different fault modes in various subsystems, of the failure prognostic problem. The application domain focuses on an aero propulsion system of the turbofan type. Creep in the high-pressure turbine blade is one of the most critical failure modes of aircraft engines. The effects of health deterioration of low-pressure compressor and high-pressure compressor on creep damage of high-pressure turbine blades are investigated and modeled.
{"title":"A hierarchical framework for fault propagation analysis in complex systems","authors":"Manzar Abbas, G. Vachtsevanos","doi":"10.1109/AUTEST.2009.5314003","DOIUrl":"https://doi.org/10.1109/AUTEST.2009.5314003","url":null,"abstract":"In complex systems, there are few critical failure modes. Prognostic models are focused at predicting the evolution of those critical faults, assuming that other subsystems in the same system are performing according to their design specifications. In practice, however, all the subsystems are undergoing deterioration that might accelerate the time evolution of the critical fault mode. This paper aims at analyzing this aspect, i.e. interaction between different fault modes in various subsystems, of the failure prognostic problem. The application domain focuses on an aero propulsion system of the turbofan type. Creep in the high-pressure turbine blade is one of the most critical failure modes of aircraft engines. The effects of health deterioration of low-pressure compressor and high-pressure compressor on creep damage of high-pressure turbine blades are investigated and modeled.","PeriodicalId":187421,"journal":{"name":"2009 IEEE AUTOTESTCON","volume":"39 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-11-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128356668","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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