液晶驱动电路HT 1612及其在蒸汽流量积算器中的应用

The features and the basic operation method of the HT1621 liquid crystal display driving circuit are introduced． With the steam flow to talizer as example the design of relevant hardware and software for the application of HT1621 in liquid crystal display ins truments is described in brief．     

The evaluation of cluster policy by fuzzy MCDM: Empirical evidence from HsinChu Science Park

In the recent years, industrial clusters have received considerable attention from economists and industrial analysts, because they are seen as the main reason for economic growth and success of certain economic region. This study systematically reviews past researches of industrial cluster. The purpose of this paper is to contribute to the understanding of this issue regarding the driving forces for the growth of industrial cluster and find out the priority among these cluster policies. Taiwan HsinChu Science Park is a prime example for this paper, and its connection with the innovative participators. We begin with an examination of the literature on cluster about its driving forces and policies upon which we propose a conceptual framework. In doing so, we explore the cluster-based industrial system. Then this research adopts the Fuzzy Analytic Hierarchy Process as the analytical tool. The Fuzzy Analytic Hierarchy Process method is used to determine the weightings for evaluation dimension among decision makers. From our research results, the Factor Conditions is the most important driving force for advancing the industrial cluster performance. Moreover, the promotion of international linkages policy and broader framework policies rank the first two priorities for cluster policy. Overall, this paper concludes with some simulations of cluster policy alternatives confronting the industry and the Taiwanese government.     

The impact of CCT on driving safety in the normal and accident situation: A VR-based experimental study

Correlated color temperature (CCT) of the light source inside the road tunnel plays a crucial role in ensuring driving safety, which is demonstrated by previous studies that CCT influences not only visual effects but also non-visual effects. Although conventional laboratory experiments could simulate the CCT environment inside the tunnel to some extent, they fail to restore driving experience, let alone simulate driving behavior in the accident situation. It has largely remained unclear whether and how CCT would influence visual/non-visual performance of the subjects who are performing driving tasks, especially in the accident situation. Motivated by this gap, a virtual-reality-based framework for assessing the influence of CCT on the visual and non/visual performance in normal driving situation and in accident situation was proposed. In this study, tunnel models under seven different CCTs were created and a rear-end accident was designed in the tunnel. By integrating analog driving equipment, all participants were required to perform virtual driving tasks both in the normal situation and in the accident situation. The non-visual performance (driving fatigue) and the visual performance (reaction time) of the participants were collected and analyzed. Results show that the CCT of light source inside the tunnel was significant on the driving fatigue of the driver who was performing driving task, and it also had a significant impact on the visual performance when the driver was faced with a rear-end accident. Detailed experimental methodology, behavioral explanations underlying these findings, validity of results and practical implications are also discussed in the paper.     

Vibration and spinal lengthening in simulated vehicle driving

There is active interest in the relationship between back pain and driving. The availability of a precision stadiometer enabled experiments to be done to explore the effects of simulated driving on the change in spinal length, the hypothesis being that the spinal load would cause a shrinking in the length of the spine. The experiments demonstrated that, when exposed to a combination of vertical and horizontal vibration at 4 Hz the spinal length increased for all eight subjects, whilst under no vibration conditions there was a decrease in the average length. At 6 and 8 Hz there was no statistically significant change in length. The results suggest that there is an unloading of the spine when subjects under simulated driving conditions are exposed to vibrations in two directions at a frequency close to the spine's natural frequency.     

Simulation of accident risk displays in motorway driving with traffic

The study used a vehicle-based driving simulator to evaluate two graphical displays, one showing risk probability in terms of safety margin (Time Headway, TH), and one showing risk severity in terms of Kinetic Energy (KE). Twentyseven subjects were randomly allocated to one of three experimental conditions: Control, TH, and KE. Subjects undertook three driving tasks (ABA design). For the second driving task in the TH and KE conditions, subjects drove in the presence of their respective feedback displays. Measures of TH and KE levels were taken, as well as subjective measures of risk and task loading. It was found that the KE display was more effective than the TH display in reducing the proportion of time subjects spent at short headways. The KE display was also effective in reducing the proportion of time subjects spent at high speed. The KE display appeared to affect the perception of risk (severity of potential accidents). It was concluded that further research evaluating displays that combined the positive effects of both parameters within a single representation display is needed.     

磁悬浮控制棒驱动线性能试验研究

为了测试磁悬浮控制棒驱动线的特性,验证其性能的稳定性和可靠性,进行了驱动线的综合性能研究。通过运行特性试验,得到控制棒驱动机构及驱动线的静态、动态性能参数;通过运行寿命考验,验证控制棒驱动线的稳定性、可靠性,并对其综合性能进行检验。     

基于单片机直接驱动段式LCD的驱动模块设计

提出并设计了一种基于单片机直接驱动段式LCD的驱动模块,使用简单的附加电路实现了对背极信号的有效控制。该电路与程序相配合,实现了偏置电压控制法,交流驱动信号的产生由背极信号与段极信号的配合形成,且交流驱动信号的直流分量的平均值为零。该驱动模块具有一般性,适用于需计数、计时、状态提示等LCD显示的电子类产品中。     

Drivers’ attitudes,preference, and acceptance of in-vehicle anger intervention systems and their relationships to demographic and personality characteristics

This research conducted focus group interviews and a questionnaire survey to investigate the potential demand of drivers for anger intervention systems (AISs) and explore the effects of demographic factors and personality traits on the preference and attitudes toward AISs. Results indicate that drivers prefer auditory intervention over tactile and visual interventions. Moreover, they favor emotion recording features but also have negative attitudes about accuracy and system security. In addition, age and some personality traits (i.e., types of driving anger and categories of driving anger expressions) play an important role in predicting the preference of intervention modalities or attitudes toward AISs and provide a new perspective on designing customized intervention systems. The outcome of this research provides practical implications regarding the design of in-vehicle anger intervention systems for the automotive industry to reduce drivers’ anger and improve driving safety.     

网联车辆自适应巡航控制算法验证平台设计

自适应巡航控制系统是一种车辆高级辅助驾驶系统，不仅可以减轻驾驶员工作负担，还能增强车辆的行车安全和驾乘舒适性。基于MATLAB和Python混合编程，在网络协议环境下设计智能车巡航控制算法验证平台；该平台能够模拟多种不同典型行车场景，其实时的信息采集与动画演示功能能够直观有效地展现车辆状态。结合所开发的平台软件，设计出增量式模型预测控制器（IMPC）和智能驱动驾驶（IDM）控制器，所提出的IMPC算法不仅能综合考虑网联车巡航多目标的特点，同时还满足巡航系统快速性和准确性的要求。最后结合典型驾驶工况，开展智能车的车辆自适应巡航控制实验。实验结果表明，基于MATLAB和Python混合编程的软件系统能有效模拟各种驾驶情景，并能结合智能车验证该自适应巡航控制算法的结果。     

坦克驾驶模拟器的运动仿真算法与实现

介绍了坦克驾驶模拟器的硬件结构和工作原理,提出其仿真系统模型.为了更好地模拟坦克驾驶运动过程,采用动力学和运动学分析方法对坦克所受的力进行研究,得出其动力学方程,对坦克驾驶进行仿真.根据力学分析所得出的坦克加速度以及前一状态的速度和发动机转速,利用动力学方程和运动学方程求出当前时刻发动机的转速、坦克的速度、位置变化、方向变化等,将数据发送给视景程序,从而驱动视景变化,由此仿真坦克驾驶模拟器的运动.该系统实时效果好,可以真实地模拟实际的驾驶情况.