The reason why the virtual instrument has strong vitality and competitiveness lies in its "developability" and "scalability", so how is the application of automotive testing innovated?
According to relevant information, the application of virtual instruments in the automotive field includes the application in automotive inspection and the application in the vehicle interior test system IVDAS.
Application of Virtual Instruments in Automobile Instrument Testing
At the same time that mass production of automobile instruments brings about another problem, that is the inspection of finished products. The instrument assembly is the information center of a modern car. Its production quality is related to the safety of the car and the quality of the vehicle. Due to the renewal of automobile meters, new products continue to appear and old meters have not been withdrawn. How to design a testing device that can target various types of meters has become an important and extremely important in the testing of automobile meters. A topic of practical significance.
Through NI software and hardware products, the entire detection system is designed. According to various analog, digital, switch, K-Line, CAN and other signal parameters required for instrument testing, NI ’s PXI series cards, Zhongtai ’s PCM-536 and the self-made programmable network resistance and data communication conversion card form the hardware circuit part of the system. Based on this, the NI LabVIEW software is used to design the entire test system. The ultimate goal is to develop a small, flexible, and highly reliable portable inspection system. It can be simulated for most vehicle models in automotive instrument inspection. All kinds of collected signal information required by the instrument, and communicate with the instrument under test through the CAN interface, so as to realize real-time feedback of vehicle status information.
The entire test system is designed through NI's LabVIEW software platform. It has been proven in practice that it not only reduces production costs, improves inspection efficiency, and ensures product quality, but also a complete automotive intelligent digital instrument inspection system is also suitable for General automobile instrument detection system.
Application of Virtual Instrument in IBDAS
As one of the most common automotive electronic test applications, the in-vehicle test system IVDAS is superior to the traditional in-vehicle test system. The traditional in-vehicle test system uses an independent data logger to record only general data and alarms, while I VAS While recording and analyzing various sensor signals in the car, it also has high requirements on the reliability, portability and development of the test system.
American B & B has developed IVDAS based on NI's LabVIEW and PXI / SCXI. The system shows the flexibility of virtual instruments in the field of testing. Various signal conditioning modules are embedded in the SCXI chassis. The mode of the module is determined by the type of signal. The integration of various signal acquisition and processing is completed by the LabVIEW program. The superiority of IVDAS comes from the flexibility and upgradeability of using PIX and SCXI. Possible upgrades include: enhanced touch screen functions, speech synthesis, language recognition, motion control, GPS acceptance and central control unit.
What are the problems with virtual instruments?
The contribution of virtual instruments to the detection technology in the automotive industry is large, but the existing problems cannot be underestimated. The computer program of the virtual instrument is a kind of software. For some reason, the calibration data is lost or destroyed, and the reading deviates from the true value; on the other hand, it can be modified artificially. The proportional relationship between them causes fraud and deceit, thereby reducing credibility.
How to deal with the problem?
Technically, the concept of legal system stipulates that all newly developed virtual instruments must form specific measurement verification files. The files with modified parameters automatically generate hidden file files and cannot be modified, leaving traces to the relevant departments, so that there is evidence. In terms of management methods, the newly developed virtual instrument software has a supervision and management system for the calibration data to pass the appraisal; the system stipulates that the instrument parameters that have been verified must not be modified during the validity period. If it can be achieved, it can play a certain inhibitory role.
As a high-tech technology, virtual instruments have gradually entered our lives and become the mainstream trend in the test and measurement industry. It is also obvious to the detection technology of the automotive industry. The four advantages of high performance, high scalability, less development time and excellent integration of virtual instrument technology fully indicate that our lives are constantly "virtualized", and networked virtual instruments will have a wider application prospect.
According to relevant information, the application of virtual instruments in the automotive field includes the application in automotive inspection and the application in the vehicle interior test system IVDAS.
Application of Virtual Instruments in Automobile Instrument Testing
At the same time that mass production of automobile instruments brings about another problem, that is the inspection of finished products. The instrument assembly is the information center of a modern car. Its production quality is related to the safety of the car and the quality of the vehicle. Due to the renewal of automobile meters, new products continue to appear and old meters have not been withdrawn. How to design a testing device that can target various types of meters has become an important and extremely important in the testing of automobile meters. A topic of practical significance.
Through NI software and hardware products, the entire detection system is designed. According to various analog, digital, switch, K-Line, CAN and other signal parameters required for instrument testing, NI ’s PXI series cards, Zhongtai ’s PCM-536 and the self-made programmable network resistance and data communication conversion card form the hardware circuit part of the system. Based on this, the NI LabVIEW software is used to design the entire test system. The ultimate goal is to develop a small, flexible, and highly reliable portable inspection system. It can be simulated for most vehicle models in automotive instrument inspection. All kinds of collected signal information required by the instrument, and communicate with the instrument under test through the CAN interface, so as to realize real-time feedback of vehicle status information.
The entire test system is designed through NI's LabVIEW software platform. It has been proven in practice that it not only reduces production costs, improves inspection efficiency, and ensures product quality, but also a complete automotive intelligent digital instrument inspection system is also suitable for General automobile instrument detection system.
Application of Virtual Instrument in IBDAS
As one of the most common automotive electronic test applications, the in-vehicle test system IVDAS is superior to the traditional in-vehicle test system. The traditional in-vehicle test system uses an independent data logger to record only general data and alarms, while I VAS While recording and analyzing various sensor signals in the car, it also has high requirements on the reliability, portability and development of the test system.
American B & B has developed IVDAS based on NI's LabVIEW and PXI / SCXI. The system shows the flexibility of virtual instruments in the field of testing. Various signal conditioning modules are embedded in the SCXI chassis. The mode of the module is determined by the type of signal. The integration of various signal acquisition and processing is completed by the LabVIEW program. The superiority of IVDAS comes from the flexibility and upgradeability of using PIX and SCXI. Possible upgrades include: enhanced touch screen functions, speech synthesis, language recognition, motion control, GPS acceptance and central control unit.
What are the problems with virtual instruments?
The contribution of virtual instruments to the detection technology in the automotive industry is large, but the existing problems cannot be underestimated. The computer program of the virtual instrument is a kind of software. For some reason, the calibration data is lost or destroyed, and the reading deviates from the true value; on the other hand, it can be modified artificially. The proportional relationship between them causes fraud and deceit, thereby reducing credibility.
How to deal with the problem?
Technically, the concept of legal system stipulates that all newly developed virtual instruments must form specific measurement verification files. The files with modified parameters automatically generate hidden file files and cannot be modified, leaving traces to the relevant departments, so that there is evidence. In terms of management methods, the newly developed virtual instrument software has a supervision and management system for the calibration data to pass the appraisal; the system stipulates that the instrument parameters that have been verified must not be modified during the validity period. If it can be achieved, it can play a certain inhibitory role.
As a high-tech technology, virtual instruments have gradually entered our lives and become the mainstream trend in the test and measurement industry. It is also obvious to the detection technology of the automotive industry. The four advantages of high performance, high scalability, less development time and excellent integration of virtual instrument technology fully indicate that our lives are constantly "virtualized", and networked virtual instruments will have a wider application prospect.
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