简介:摘要:纯电动车辆的起步行驶安全性是近来车辆系统重点关注的问题。乘客门的是否完全关闭与车辆能否起步关系的判定不仅影响车辆的操控性和稳定性,更直接关系到车载人员及路上行人的生命安全。本文主要针对一种申沃纯电动车辆起步未关门造成的安全隐患这种情况进行研究。依据GB_13094国家标准,通过CAN总线控制,对这种车辆加装起步阻止装置功能。
简介:摘要:CAN通讯具有无主特性在许多领域都得到广泛应用。但由于其网络节点多、通讯速率快等因素也容易造成通讯异常,这些问题大多与CAN网络的端接电阻相关。本文介绍了
简介:摘要:CAN总线是工程机械控制系统的通用总线标准。现有实验平台多承载重复性和验证性实验,如通过指示灯信号状态来展示工程机械控制系统的部分功能,大大限制了学生对相关知识的认识和思考。本项目以“机电传动与控制”课程的创新实验内容为对象,针对某种型号的智能芯片全生命周期检测系统,采用LabVIEW为开发平台,进行CAN总线柔性化测控平台设计,以实现控制系统各项参数的调试和监控目标,借此提高学生的实践能力和创新能力。
简介:
简介:摘要:结合当前汽车制造技术的飞速发展的实际情况,结合自身从事汽车总线设计及测试工作经验,多角度分析了车辆CAN总线自动化测试系统的系统构架以及实现要点等内容,希望对于全面提升汽车电子技术中的自动化测试水平有所帮助。
简介:AbstractImportance:Several methods have been established in recent decades that allow use of spot urine to estimate dietary sodium intake. However, their accuracies have been controversial in children.Objective:To validate the performance of three commonly used methods—the Kawasaki, Tanaka, and International Cooperative Study on Salt, Other Factors, and Blood Pressure (INTERSALT) methods. Additionally, this study explored the accuracies of the Tanaka and INTERSALT methods by using spot urine samples taken at four separate times.Method:Forty-one adolescents aged 14 to 16 years completed two non-consecutive 24-hour urine collections and their mean values were used as reference data. The second-morning urine was used for assessment with the Kawasaki method; a casual spot urine and spot urine samples taken at four separate times (morning, afternoon, evening, and overnight) were used for assessment with the Tanaka and INTERSALT methods.Results:The mean differences were 1801 mg, 542 mg, 47 mg, and -31 mg for the Kawasaki, Tanaka, INTERSALT1 (with potassium), and INTERSALT2 (without potassium) methods with their required spot urine, respectively. The proportions of relative difference levels within ± 10% were 4.9% for the Kawasaki method, 19.5% for the Tanaka method, 36.6% for the INTERSALT1 method, and 36.6% for the INTERSALT2 method.Interpretation:The INTERSALT method seemed to provide minimally biased estimations of mean population sodium intake with casual spot urine. However, there is a need to be cautious regarding inconsistencies in estimation among different levels of sodium intake. The methods assessed in this study were unable to accurately estimate sodium intake at the individual level.
简介:摘要:随着我国经济的发展,技术研究的深化在不断的提升,技术运用的范围也在不断的拓展。从目前的技术利用来看,通信技术是我国技术利用的一个重点,一方面是通信技术在数据整理和分析中存在着效率性,另一方面是通信技术在信息传输等方面具有时效性。简言之,通信技术在我国技术利用当中的重要性体现越来越显著。从目前的研究来看,在通信技术利用的基础上,我国实现了通信系统的建立,通信系统为信息的高速传播打下了坚实的基础,所以分析系统的构成对于其发展而言有着重要的意义。本文就通信系统的基本构成以及其通信方式进行详细的分析,目的是要为系统数据的传输效率和质量的提升做好技术参考。