NI myRIO是一款便携的嵌入式学生设计设备,在当前国内外高校口袋实验室中发挥了重要作用,对学生开展创新、创业项目设计提供了有力支持。设计以NI myRIO为核心处理器以LabVIEW图形化系统为设计软件平台,通过电动机驱动、人像识别、自动...NI myRIO是一款便携的嵌入式学生设计设备,在当前国内外高校口袋实验室中发挥了重要作用,对学生开展创新、创业项目设计提供了有力支持。设计以NI myRIO为核心处理器以LabVIEW图形化系统为设计软件平台,通过电动机驱动、人像识别、自动避障、语音交互、WiFi通信等模块的搭建,开发一款家庭陪伴机器人,主要用于陪伴空巢老人,实现跟随、日常生活提醒、语音交互、音频播放、异常情况通信报警等基本的陪伴功能。系统设计灵活,方便扩展,功能实用,不仅对新工科人才培养具有积极作用,还具有较好的社会意义和实用价值。展开更多
文章主要研究基于NI my RIO小型四旋翼飞行器的设计与实现,小型四旋翼飞行器拥有灵活小巧且软硬件结构比较简单的特点,并且以NI my RIO芯片为核心。飞行器的设计包括蓝牙通信模块,控制器模块,传感器检测模块,驱动模块、电源模块和电机...文章主要研究基于NI my RIO小型四旋翼飞行器的设计与实现,小型四旋翼飞行器拥有灵活小巧且软硬件结构比较简单的特点,并且以NI my RIO芯片为核心。飞行器的设计包括蓝牙通信模块,控制器模块,传感器检测模块,驱动模块、电源模块和电机执行模块。小型四旋翼飞行器采用的是PID控制算法。PID控制算法是自动控制系统的常用基本控制方式。通过PID控制算法调整,可以实现小型四旋翼飞行器的平稳飞行。展开更多
In this paper,we have presented a simple approach for experimental and application study on LabVIEW based temperature transmitter with NI myRIO device in the laboratory.In this work,to study the small range of tempera...In this paper,we have presented a simple approach for experimental and application study on LabVIEW based temperature transmitter with NI myRIO device in the laboratory.In this work,to study the small range of temperature(40-100℃)although different temperature sensors can be used still,we have used here a K-type thermocouple as the measuring temperature sensor.The analog output voltage of thermocouple is amplified by instrumentation amplifier and the amplified signal is fed to the analog input of NI myRIO device which converts the analog input voltage signal as per the algorithm developed with virtual instrumentation based programming and provides the corresponding 4-20 mA output current signal in the analog output terminal of the device.Results show that input-output i.e.temperature-current relationship is linear.This low cost developed transmitter is very simple and it can be recommended for academic,scientific and industrial development of data acquisition systems,control and analysis of instruments.展开更多
With the rapid development of the modern vehicle industry,the automated control of new vehicles is in increasing demand.However,traditional course control has been unable to meet the actual needs of such demand.To sol...With the rapid development of the modern vehicle industry,the automated control of new vehicles is in increasing demand.However,traditional course control has been unable to meet the actual needs of such demand.To solve this problem,more precise pathtracking control technologies have attracted increased attention.This paper presents a new algorithm based on the latitude and longitude information,as well as a dynamic trigonometric function,to improve the accuracy of position deviation.First,the algorithm takes the course deviation and adjustment time as the optimization objectives and the given path and speed as the constraints.The controller continuously adjusts the output through a cyclic“adjustment and detection”process.Second,through an integration of the steering,positioning,and speed control systems,an experimental platform of a path-tracking control system based on the National Instruments(NI)myRIO controller and LabVIEW was developed.In addition,path-tracking experiments were carried out along a linear path,while changing lanes,and on a curved path.When comparing and analyzing the experimental results,it can be seen that the average deviation in lateral displacement along the linear and curved paths was 0.32 and0.8 cm,and the standard deviation of the lateral displacement was 2.65 and 2.39 cm,respectively.When changing lanes,the total adjustment time for the vehicle close to the target line to reach stability was about 1.5 s.Finally,the experimental results indicate that the new algorithm achieves good stability and high control accuracy,and can overcome directional and positional errors caused by road interference while driving,meeting the precision requirements of automated vehicle control.展开更多
文摘文章主要研究基于NI my RIO小型四旋翼飞行器的设计与实现,小型四旋翼飞行器拥有灵活小巧且软硬件结构比较简单的特点,并且以NI my RIO芯片为核心。飞行器的设计包括蓝牙通信模块,控制器模块,传感器检测模块,驱动模块、电源模块和电机执行模块。小型四旋翼飞行器采用的是PID控制算法。PID控制算法是自动控制系统的常用基本控制方式。通过PID控制算法调整,可以实现小型四旋翼飞行器的平稳飞行。
文摘In this paper,we have presented a simple approach for experimental and application study on LabVIEW based temperature transmitter with NI myRIO device in the laboratory.In this work,to study the small range of temperature(40-100℃)although different temperature sensors can be used still,we have used here a K-type thermocouple as the measuring temperature sensor.The analog output voltage of thermocouple is amplified by instrumentation amplifier and the amplified signal is fed to the analog input of NI myRIO device which converts the analog input voltage signal as per the algorithm developed with virtual instrumentation based programming and provides the corresponding 4-20 mA output current signal in the analog output terminal of the device.Results show that input-output i.e.temperature-current relationship is linear.This low cost developed transmitter is very simple and it can be recommended for academic,scientific and industrial development of data acquisition systems,control and analysis of instruments.
文摘With the rapid development of the modern vehicle industry,the automated control of new vehicles is in increasing demand.However,traditional course control has been unable to meet the actual needs of such demand.To solve this problem,more precise pathtracking control technologies have attracted increased attention.This paper presents a new algorithm based on the latitude and longitude information,as well as a dynamic trigonometric function,to improve the accuracy of position deviation.First,the algorithm takes the course deviation and adjustment time as the optimization objectives and the given path and speed as the constraints.The controller continuously adjusts the output through a cyclic“adjustment and detection”process.Second,through an integration of the steering,positioning,and speed control systems,an experimental platform of a path-tracking control system based on the National Instruments(NI)myRIO controller and LabVIEW was developed.In addition,path-tracking experiments were carried out along a linear path,while changing lanes,and on a curved path.When comparing and analyzing the experimental results,it can be seen that the average deviation in lateral displacement along the linear and curved paths was 0.32 and0.8 cm,and the standard deviation of the lateral displacement was 2.65 and 2.39 cm,respectively.When changing lanes,the total adjustment time for the vehicle close to the target line to reach stability was about 1.5 s.Finally,the experimental results indicate that the new algorithm achieves good stability and high control accuracy,and can overcome directional and positional errors caused by road interference while driving,meeting the precision requirements of automated vehicle control.
