After analyzing and comparing the traditional automobile instrument,the onboard instrument based on virtual instrument technology is designed in this paper.The PC/104 computer was employed as the core processing unit of the onbaard in- strument,and the several intelligent data acquisition nodes are set and connected by the CAN bus,through which the nodes can com- municate with the core processing unit.The information of the vehicle’s working condition can be displayed synthetically by adopt- ing virtual instrument technology.When the working condition goes beyond its limit,the system can emit an alarm,record and storage the abnormal condition automatically,and suggest how to deal with the abnormity urgently.The development background and design idea of onboard information system were elaborated in the paper.The software,the hardware architecture and the principle of onboard information system were introduced in detail.
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机译：CTEF 2.0-评估和改进指挥小组的有效性：模型和仪器的验证（CTEF 2.0-Diagnostic et amelioration de l'Efficcati d'un Team de Commandement：Verification du modele et l'Instrument）
