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61.
为提高匹配机械弹性车轮汽车在高速紧急避障时的效率与安全性,在Simulink中建立了整车非线性八自由度模型,并基于车轮样机台架试验数据,利用Matlab遗传算法工具箱对机械弹性车轮模型参数进行分级辨识.综合考虑行驶车速、轨迹跟踪误差、方向盘转角以及侧翻评价指标,建立了八自由度驾驶员—汽车预瞄跟随闭环系统模型.分析了汽车在不同行驶车速时所需的方向盘角输入信息与侧翻状态响应,总结出汽车高速转向时的侧翻动态特性.为高速安全通过规划的避障路径,在转向控制驾驶员模型基础上建立了速度控制驾驶员模型,当侧翻评价指标超过安全阈值时利用制动踏板降低车速,当纵向车速小于期望安全车速时利用加速踏板提高车速.仿真分析表明建立的高速避障路径跟踪与控制策略能高效完成避障路径跟踪,同时能有效降低紧急避障时的侧翻风险. 相似文献
62.
Kyung Min Kim Inhyo Han Seok Noh Young In Jang Kilhwan Oh Bumsik Kim In‐Byeong Kang 《Journal of the Society for Information Display》2019,27(8):514-522
In this article, we described an innovative design technology of active matrix organic light emitting diode (AMOLED) display, to provide a bezel free design. We designed gate driver circuit of amorphous indium‐gallium‐zinc oxide thin‐film transistors (TFTs) not on the bezel area but within the active array. Although we applied challengeable design, no degradation of electrical/optical properties of panel was observed. Because we effectively prevented capacitive coupling and interference between the emission circuit and integrated gate driver circuit in active array, finally, we successfully demonstrated a bezel free designed AMOLED display of 18.3″ HD (1366 × 768) driven by a‐InGaZnO TFTs. 相似文献
63.
ABSTRACTThe purpose of this paper is to analyse the role of the driver within automated driving systems using the Event Analysis of Systemic Teamwork (EAST) method. We already know that as the level of automation increases within the driving task, the role of the driver shifts from that of an active operator (i.e. a driver driving) to more of a passive monitor (i.e. a driver monitoring). Task, social and information networks were constructed using the Hierarchical Task Analysis of Driving and evidence from driver verbalisations collected during a previous study to further explore the changing role of the driver using network analysis. A ‘broken links’ approach was conducted to show that momentary engagement in non-driving-related secondary tasks within an automated driving system can dramatically change the structure of driving system. 相似文献
64.
Junjie Zhu Yanfeng Zhao Ming Liu Diego Gonzalez‐Rivas Xinnan Xu Weijing Cai Huiwei Qi Lei Dai Zijian Wang Xiao Song Gening Jiang Yang Yang 《Small (Weinheim an der Bergstrasse, Germany)》2019,15(9)
An accurate genotyping analysis is one of the critical prerequisites for lung cancer targeted therapy. Here, a quantitative polymerase chain reaction (qPCR)‐based mutation detection system, mutation‐selected amplification‐specific system PCR (MASS‐PCR), is developed. The specific primers and probes used in MASS‐PCR exactly match with the mutant sequence that only allows mutant gene to emit the fluorescence peak. To determine the sensitivity of MASS‐PCR, 717 lung cancer specimens, 61 formalin‐fixed paraffin‐embedded (FFPE) tissues, and 656 fresh reaction tissues are collected and undergo mutation detection of lung cancer driver genes (EGFR, KRAS, BRAF, HER2, MET, ALK, and ROS1). These samples are divided into two groups. Mutations in Group I, which has 631 fresh reaction tissues, are analyzed by MASS‐PCR and the amplification refractory mutation system PCR (ARMS‐PCR). While group II samples, 25 fresh reaction tissues and 61 FFPE tissues, are screened through MASS‐PCR and next‐generation sequencing (NGS). All results are verified by direct sequencing. MASS‐PCR shows high consistency with ARMS‐PCR (kappa value > 0.733) and NGS (kappa value = 0.79) (P < 0.001). For the samples with inconsistent MASS‐PCR and ARMS‐PCR results, DS results more likely support the MASS‐PCR results. These data suggest that MASS‐PCR is a convenient, accurate, and economical method for the detection of lung cancer driver gene mutations in clinical practice. 相似文献
65.
Renran Tian Keyu Ruan Lingxi Li Jialiang Le Jeff Greenberg Saeed Barbat 《IEEE/CAA Journal of Automatica Sinica》2019,6(3):716-732
Driver state sensing technologies, such as vehicular systems, start to be widely considered by automotive manufacturers. To reduce the cost and minimize the intrusiveness towards driving, the majority of these systems rely on the in-cabin camera(s) and other optical sensors. With their great capabilities in detecting and intervening of driver distraction and inattention, these technologies may become key components in future vehicle safety and control systems. However, to the best of our knowledge, currently, there is no common standard available to objectively compare the performance of these technologies. Thus, it is imperative to develop one standardized process for evaluation purposes. In this paper, we propose one systematic and standardized evaluation process after successfully addressing three difficulties: 1) defining and selecting the important influential individual and environmental factors, 2) countering the effects of individual differences and randomness in driver behaviors, and 3) building a reliable in-vehicle driver head motion tracking tool to collect ground-truth motion data. We have collected data on a large scale on a commercial driver state-sensing platform. For each subject, 30 to 40 minutes of head motion data was collected and included variables, such as lighting conditions, head/face features, and camera locations. The collected data was analyzed based on a proposed performance measure. The results show that the developed process can efficiently evaluate an individual camera-based driver state sensing product, which builds a common base for comparing the performance of different systems. 相似文献
66.
There is limited research on trade-offs in demand between manual and voice interfaces of embedded and portable technologies. Mehler et al. identified differences in driving performance, visual engagement and workload between two contrasting embedded vehicle system designs (Chevrolet MyLink and Volvo Sensus). The current study extends this work by comparing these embedded systems with a smartphone (Samsung Galaxy S4). None of the voice interfaces eliminated visual demand. Relative to placing calls manually, both embedded voice interfaces resulted in less eyes-off-road time than the smartphone. Errors were most frequent when calling contacts using the smartphone. The smartphone and MyLink allowed addresses to be entered using compound voice commands resulting in shorter eyes-off-road time compared with the menu-based Sensus but with many more errors. Driving performance and physiological measures indicated increased demand when performing secondary tasks relative to ‘just driving’, but were not significantly different between the smartphone and embedded systems.
Practitioner Summary: The findings show that embedded system and portable device voice interfaces place fewer visual demands on the driver than manual interfaces, but they also underscore how differences in system designs can significantly affect not only the demands placed on drivers, but also the successful completion of tasks. 相似文献
67.
主要研究在Windows系统内核模式中开发过滤驱动,以实现文件透明加解密功能并实现了对内网安全中信息防泄漏系统的设计。系统对网络安全域内所有计算机上的重要信息的存储和传输实施访问控制、数据保护和日志记录,提供集中管理控制机制、安全策略生命周期管理方法和审计分析报告,防止内部网络重要信息被泄漏和破坏。 相似文献
68.
为了解决传统基本输入输出系统(basic input output system,BIOS)的种种弊端,提出了统一的可扩展固件接口(unified extensible firmware interface,UEFI)标准,UEFI广泛应用在BIOS和嵌入设备等装置中.基于UEFI 2.3的规范说明文档,分析了UEFI驱动程序构成,重点介绍了驱动程序模型,并给出EFI开发工具包(E-FI development kit,EDK)下开发简单的驱动程序基本组成,从而归纳出在UEFI下开发驱动程序的通用方法. 相似文献
69.
基于主机内核的混合型入侵防御系统的设计与实现技术 总被引：5，自引：0，他引：5
入侵防御系统（IPS,Intrusion Prevention System）是信息安全产品的发展趋势设计了一个工作在Windows操作系统平台上的混合型入侵防御系统。它将NIPS（基于网络的IPS）和HIPS（基于主机的IPS）无缝地结合起来,分别从网络、主机的重要进程（线程）和重要文件三个主要层次实施较全面的保护。给出了该系统的框架,针对Windows2000系统给出了一些关键的实现技术。 相似文献
70.
本文介绍了基于CompactPCI总线数字隔离I/O(Input/Output)模块的实现。通过硬件和驱动的设计,该模块可以实现数字信号传输和隔离的作用,在内场测试系统中起到了实际的作用。 相似文献