Design And Implementation Of Self-managed Instrument Experiment System

With the rapid development of science and technology,talents cultivated by colleges and universities must keep pace with the times.Therefore,how to cultivate talents with a solid theoretical foundation,excellent scientific experiment ability and the courage to innovate has become a focus of universities.In the teaching activities of colleges and universities,experimental teaching has a role that is difficult to be replaced in other teaching links,especially in training students' practical ability,ability to analyze and solve practical problems,and a rigorous scientific attitude.Based on the analysis of the problems existing in traditional instrument experiment teaching,this paper designs a(Self-Managed Instrument Experiment)SMIE system.The so-called self-management means that the system can automatically scan all hardware modules,automatically obtain module index parameters,and automatically configure the scanned modules as instruments.The purpose of this system is to provide a set of testing instrument design and verification platform for electronic engineering professional teaching.The platform can provide experimenters with a complete reference model for test instrument design,which facilitates the design and development of single or multiple modules on a complete instrument system.The SMIE system designed in this paper is based on a unified standard interface to develop software and hardware modules,which can be combined into different instruments to achieve the reuse of resources,so that the entire system design has certain scalability and versatility.This article focuses on the design and implementation of self-managed instrument experimental system.The main research contents are summarized as follows:1.Overall scheme design of SMIE system.Overall scheme design of SMIE system.On the basis of in-depth research on the instrument experimental system,the overall scheme of the system implementation is analyzed and designed according to the needs of the system.The scheme divides the system into two major levels of hardware and software;2.Detailed implementation of SMIE system.This paper builds a development environment in an embedded linux system,which mainly completes the design and implementation of the function presentation layer,system logic layer and data resource management layer of SMIE.The specific functions implemented in this article include module scanning detection using boundary scan technology,module management based on database,automatic instrument configuration,module debugging,database backup and recovery,etc.;3.Design and implementation of instrument software template.It mainly implements the design of the soft panel of the instrument,the functions of the instrument and the interface of the instrument drive,and introduces its implementation process in detail by taking the signal generator as an example.Finally,after completing the design and implementation of the SMIE system,this paper tests the functions of the software system and the basic functions of the instrument on the hardware platform to verify the feasibility of the system.