multichannel and high-resolution limit testing
Transcription
multichannel and high-resolution limit testing
MULTICHANNEL AND HIGH-RESOLUTION LIMIT TESTING DETECTION, ANALYSIS AND LOGGING OF SHORT SPORADIC ERRORS FOR THE AUTOMOTIVE INDUSTRY LV 124 COMPATIBILITY AND HIGH-RESOLUTION ANALYSIS. Silver Sil Si lver lve Alliance Al Alli lilian ance an ce Partner P artner t LV 124 compatibility and high-resolution analysis If you are looking for a way to comply with the electrical test requirements of the LV 124 automotive norm, or if you simply need to analyze your signal profiles using a high-resolution, then the Tube Analyzer Pro is your tool of choice. Sampling with a rate of up to 100 kHz, the Tube Analyzer can detect very short and sporadic errors – continuously monitoring 64 analog and 32 PWM channels in parallel -, logging the desired signals into standard TDMS files (s. below). Combined with the fast and comprehensive Tube Analyzer Log Viewer and with the intuitive Tube Analyzer TestRun Generator, the Tube Analyzer Pro Package is the tool with which you will test your signals reliably and more accurately than ever. Being easily integrable in your existing Test Setup, the Tube Analyzer is a ready-to-use measuring component that brings you faster to your desired test results. Tube Analyzer optimizes your LV 124 tests through: · Reliable detection and innovative analysis of very short sporadic errors · Driftless and synchronous monitoring of all analog and PWM inputs · Complete tool chain, including TestRun Generator and Log Viewer · Remote control of the user interface · Support of the LV 124 norm requirements Tube Analyzer reduces your total cost of ownership through: · Immediate integration in the National Instruments™ world · Worldwide hardware component support by National Instruments™ Partners · Modular and scalable software components · Continuous software maintenance · Based and developed on industry standards NI LabVIEW LV 124 In recent years, the automotive industry was faced with technical challenges that had to comply with various industry norms. One of the most important norms is the LV 124, which was drawn up by the representatives of automobile manufacturers like Audi AG, BMW AG, Volkswagen AG, Porsche AG and so on. LV 124 describes various electrical tests and their requirements (s. examples below). LV 124 Test requirements, e.g. Pin interruption, jump start, long-term overvoltages etc. Having long-time partnerships with big companies in the automotive industry, WKS Informatik noticed these trends and also the difficulties these companies have in order to comply with all these norms and developed the Tube Analyzer as the first tool supporting all those in need of these compliances. The Tube Analyzer supports these measurement requirements, by being able to detect short and sporadic errors with an accuracy of up to 10us. This kind of high-resolution is also best-suited for the aerospace and aviation industry, as well as for ECU development. Adaptive logging and benefits In order to configurate the measurement, the interesting signals are divided into Tubes. A Tube defines the limits and the time interval, during which the limit analysis of the measured signal is performed. If the signal is not within the defined limits, the data will be logged with a rate of up to 100 kHz (including pre- and posttrigger), otherwise with a configurable lower rate. This way only the relevant time intervals will be logged. This principle is called Adaptive Logging and insures that you get only the relevant data with a high accuracy, reducing the amount of irrelevant information and therefore the time you spend analyzing the measurement results. The PWM signal components (Amplitude, Period and Duty Cycle) are analyzed independently, thus offering you detailed and more precise information of the PWM data. The Workflow The Tube Analyzer Pro is a package helping to make your error analysis easier and faster by using our fast and comprehensive TDMS Log Viewer, as well as our Test Run generator, which helps you create reliable measurement configurations. Third Tube Analyzer itself, which does the limit violation analysis. This workflow can be represented as follows: TESTRUN GENERATOR Measurement configuration generator and editor for the Tube Analyzer Tube Analyzer Interface LOG VIEWER Log Viewer for Tube Analyzer measurement files Test Setup Integration The Tube Analyzer comes as an easily integrable measurement component. If you already have a test setup system, WKS Informatik’s Tube Analyzer offers a Remote Control interface, through which you can perform the measurements from your own Host PC, and most importantly a hardware synchronization interface, in order to insure a full signal coordination throughout your system (s. example below). Client integration The Tube Analyzer has been integrated already in a complex testing system of a German DAX company. The product’s important features, like hardware synchronization and remote control, made the integration an easy process. They also guaranteed that the client was free and not conditioned by the Tube Analyzer in his own system development. The simple and standard interfaces, as well as the compact size of the Tube Analyzer speak for the product’s integration capabilities into various systems. Below you can see how the Tube Analyzer was actually integrated. Modular test setup vs. Oscilloscope The Tube Analyzer was created based on a long experience of automated testing, which showed that the oscilloscope-based solutions have big disadvantages compared to the Tube Analyzer-based ones, as shown in the table below: Automated testing – the Tube Analyzer can be integrated into automated test sequences and is controlled over a defined remote interface Manual testing Many signals in parallel – the number of channels can be set up according to testing needs (between 8 and 96 pins per Tube Analyzer); different Tube Analyzer versions can be exchanged without influencing the rest of the test setup; also, several Tube Analyzer versions can be run in parallel. Limited number of channels – between 2 and 4 Reproducible - automated testing and Tube Analyzer limit testing guarantee reproducible tests Precise error detection- all errors which occur during the measurement are detected and logged in TDMS format Uncertain error detection – only the first error is detected (triggered) and results are not logged Precise analysis – the Tube Analyzer tools allow a simple and precise analysis of the measurement data Imprecise analysis – visual analysis prone to human failure Reduced testing times & costs High testing times & costs Current developments Following the client-oriented approach, WKS Informatik is constantly trying to meet your needs and developed a whole new series of Tube Analyzer. Each product comes to fulfill all of your testing needs. A compact version of their most important features is listed below: technical data sheet Tube Analyzer Pro F8 Tube Analyzer Pro F24 Tube Analyzer Pro F96 number of AI – channels (0..32 V) 8 20 64 number of pwm – channels 0 4 32 max. sample rate per channel 100 KHz 100 KHz 100 KHz min. sample rate per channel 1 Hz 1 Hz 1 Hz logging in TDMS file format for all channels parallel • • • testresult summary in csv – file format • • • length of pretrigger 1s 1s 1s length of posttrigger (configurable) >=1 s >=1 s >=1 s RAM [GB] 16 16 min 16 operating system WIN 7/64 bit WIN 7/64 bit WIN 7/64 bit harddisk 250 GB SSD SSD SSD connection USB LAN PCIe system requirements legend: - not supported, • supported F96 F8 F24 About us Based on over 20 years of being NI Alliance Partner and relying on the double LabVIEW/ TestStand Architect certification, WKS Informatik focuses on customer success, providing innovative and cost-efficient solutions for industries like Aerospace, Automotive and RF/ Communications, complying with the most challenging software and hardware requirements. The winner of the first Technical Innovation Award in Germany, RTStand, was created in order to help our customers achieve better and faster industrial testing results at optimal cost and is a customizable HIL test and simulation platform, supporting critical tests during development, validation and production processes of electrical and electronic components. We provide turnkey solutions for automotive electrical tests using our LV124-related (ISO16750,VW 80000,BMW GS95024-2-1) products: RTStand, TubeAnalyzer and Ultra-Fast Interrupter. Ronald Kaempf, CEO and the first Certified TestStand Architect in Germany, has the following view on the future of Test Bench systems: “It all comes to solutions. It is everywhere obvious how innovative companies strive to reduce the testing costs for their components. I think this is only possible to achieve through complete solutions based on standard components or by combining partial solutions based on the same standard components. In this direction goes our strategic focus, here by WKS Informatik.“ Ronald Kaempf CEO Contact: WKS Informatik GmbH Ulmer Str. 8 88212 Ravensburg/Germany Telephone: +49 751 36 660 60 Email: [email protected] Tube Analyzer is developed by www.tube-analyzer.com Silver Sil Si lver lve Alliance Al Alli lilian ance an ce Partner P artner t