基于DeviceNet的控制平台的设计与实现

南宁卷烟厂制丝线电气控制柜较为分散,一人对两地的设备进行操作时,一批烟多耗费15分钟的时间。为了解决两地操作效率较低的问题,采用Device net现场总线技术对原有ControlLogix电气控制系统进行了改进。在Devicenet中增加控制平台即Gp-face的触摸屏,通过在此屏幕上设置相应的控制功能按钮,然后对应每一个按钮在程序中设置相应地址,并编写相应的程序。控制平台实施安装之后,操作人员可以对两地现场设备进实时控制,省去了两地操作时浪费的15分钟的时间,大大提高了工作效率。

Noise analysis and measurement of time delay and integration charge coupled device

Time delay and integration （TDI） charge coupled device （CCD） noise sets a fundamental limit on image sensor performance, especially under low illumination in remote sensing applications. After introducing the complete sources of CCD noise, we study the effects of TDI operation mode on noise, and the relationship between different types of noise and number of the TDI stage. Then we propose a new technique to identify and measure sources of TDI CCD noise employing mathematical statistics theory, where theoretical analysis shows that noise estimated formulation converges well. Finally, we establish a testing platform to carry out experiments, and a standard TDI CCD is calibrated by using the proposed method. The experimental results show that the noise analysis and measurement methods presented in this paper are useful for modeling TDI CCDs.

A wearable real-time telemonitoring electrocardiogram device compared with traditional Holter monitoring

Arrhythmias are very common in the healthy populations as well as patients with cardiovascular diseases.Among them,atrial fibrillation(AF)and malignant ventricular arrhythmias are usually associated with some clinical events.Early diagnosis of arrhythmias,particularly AF and ventricular arrhythmias,is very important for the treatment and prognosis of patients.Holter is a gold standard commonly recommended for noninvasive detection of paroxysmal arrhythmia.However,it has some shortcomings such as fixed detection timings,delayed report and inability of remote real-time detection.To deal with such problems,we designed and applied a new wearable 72-hour triple-lead H3-electrocardiogram(ECG)device with a remote cloud-based ECG platform and an expertsupporting system.In this study,31 patients were recruited and 24-hour synchronous ECG data by H3-ECG and Holter were recorded.In the H3-ECG group,ECG signals were transmitted using remote real-time modes,and confirmed reports were made by doctors in the remote expert-supporting system,while the traditional modes and detection systems were used in the Holter group.The results showed no significant differences between the two groups in 24-hour total heart rate(HR),averaged HR,maximum HR,minimum HR,premature atrial complexes(PACs)and premature ventricular complexes(PVCs)(P>0.05).The sensitivity and specificity of capture and remote automatic cardiac events detection of PACs,PVCs,and AF by H3-ECG were 93%and 99%,98%and 99%,94%and 98%,respectively.Therefore,the long-term limb triple-lead H3-ECG device can be utilized for domiciliary ECG self-monitoring and remote management of patients with common arrhythmia under medical supervision.

Design of the Control System of Adaptive Balancing Device Based on PLC

Due to the well condition and the un-expected imbalance movement of the pumping unit in use, the energy consumes a lot. The existing balancing equipment cannot adjust and monitor the pumping units in real time. Therefore this paper introduces the new adaptive balancing equipment—fan-shaped adaptive balancing intelligent device, projects a design of such control system based on PLC, and determines the principle of the control system, the execution software and the design flow. Site commissioning effect on Daqing Oilfield shows this fan-shaped adaptive balancing intelligent device can effectively adjust and monitor the pumping unit in real time, the balance even adjusts from 0.787 to 0.901, and integrated energy saving rate is 14.2%. It is approved that this control device is professionally designed, with strong compatibility, and high reliability.

Remote monitoring of implantable cardioverters defibrillators:a comparison of acceptance between octogenarians and younger patients

Background Remote monitoring(RM)is increasingly employed for all types of cardiac implantable devices(CIED).However,there are only limited data on the acceptance of RM by the elderly.The aim of our study was to ascertain how octogenarians assess RM technologies compared to younger,presumably technically more literate patients,and what concerns or technical problems the system presents to both groups of patients.Methods The trial was designed as a descriptive,register-based single-center study.The study population consisted of all consecutive patients≥80 years of age(group A,n=94)and all consecutive patients aged≤40 years(group B,n=71),who had undergone implantation of an implantable cardioverter-defibrillator(ICD)between the years of 2009 and 2018 and were using a Home Monitoring?(HM,Biotronik,Berlin,Germany)system.All patients fulfilling entry criteria were approached with a request to participate in the survey.Results A total of 85(90.4%)and 65(91.5%)valid surveys were obtained for groups A and B,respectively.Ninety-two percent of patients in both groups(P=0.903)were satisfied with the limited number of planned ambulatory follow-ups(i.e.,once a year).All patients in both groups(100%)reported that they were satisfied with the HM system,and 97%and 94%of patients in Groups A and B,respectively,ranked it highly beneficial(P=0.68).A significant proportion of patients in both groups were completely unaware of any health-related benefits associated with the use of the HM system(42%in Group A vs.49%in Group B,P=0.4).Among the most frequently reported personal benefits of HM were a sense of safety and security and savings on travel expenses and time.5%and 9%of patients in Groups A and B,respectively,reported that usage of HM caused them some degree of psychological stress(P=0.27).Nearly all patients in both groups reported receiving information on HM from their doctor after ICD implantation.None of Group A reported receiving information from a nurse either before or after ICD implantation,while 14%of Group B patients reported receiving information from a nurse after,but not before ICD implantation.Seven and 51%(P<0.0001)of patients in Group A and B,respectively,sought additional information about HM post-discharge.Conclusions The HM system received good marks and was much appreciated,even in patients over 80 years of age.The level of acceptance and potential psychological stress resulting from RM technology appears to be about the same in older patients as in younger patients.The majority of octogenarians either did not fully understand the clinical benefits of the system or mistakenly thought that the HM system was a substitute for emergency 24-h surveillance.These results highlight the need for better patient education relative to RM technology,with one option being to delegate more of this educational process to specially trained nurses.

Telemonitoring of Patients with Implantable Cardiac Devices to Manage Heart Failure: An Evaluation of Tablet-PC-Based Nursing Intervention Program

Background: With the rapid aging of society, the number of patients with heart failure has also increased. Implantable devices for heart failure have become standardized. Remote monitoring using cardiac devices has grown in popularity for medical efficiency and the early detection of abnormalities. Our first aim was to develop a tablet-PC-based nursing intervention program for patients requiring remote monitoring of implantable cardiac devices. The second purpose was to evaluate the efficacy of the program by using mixed-methods research. Methods: The study consisted of two phases. In phase 1, we designed a tablet-PC-based nursing intervention program, on the basis of a literature review and qualitative data collected via semi-structured interviews. In phase 2, we conducted a randomized controlled trial that served as a preliminary investigation of the program. The outcome measures were readmission, unexpected visits to the clinic for heart problems, quality of life, self-care behavior, and self-efficacy. After the study, we interviewed each participant about his or her experiences with the program. Interviews were audio recorded, coded, and thematically analyzed. Results: The 33 patients with heart failure were randomized into two groups as follows: 17 patients in the telenursing group and 16 in the control group. During 6 months of follow-up, the readmission for heart failure occurred in 11% of the intervention group and 18% of the control group. There were no statistically significant differences between the groups at any outcome measures. Three themes were extracted via qualitative analysis: “getting a sense of safety,” “triggering a health behavior change,” and “feeling like a burden.” Conclusion: No improvements in rates of rehospitalization or unexpected clinic visits were seen in the quantitative study. However, signs of behavior modification were seen in the qualitative study. This program has the possibility of improving patient outcomes.

Robot Position Control Using Force Information for Cooperative Work in Remote Robot Systems with Force Feedback

This paper proposes robot position control using force information for cooperative work between two remote robot systems with force feedback in each of which a user operates a remote robot by using a haptic interface device while observing work of the robot with a video camera. We also investigate the effect of the proposed control by experiment. As cooperative work, we deal with work in which two robots carry an object together. The robot position control using force information finely adjusts the position of the robot arm to reduce the force applied to the object. Thus, the purpose of the control is to avoid large force so that the object is not broken. In our experiment, we make a comparison among the following three cases in order to clarify how to carry out the control effectively. In the first case, the two robots are operated manually by a user with his/her both hands. In the second case, one robot is operated manually by a user, and the other robot is moved automatically under the proposed control. In the last case, the object is carried directly by a human instead of the robot which is operated by the user in the second case. As a result, experimental results demonstrate that the control can help each system operated manually by the user to carry the object smoothly.

运用5G通信技术远程程控心脏置入型电子设备的有效性及安全性评价

目的:探讨与技术服务人员术中现场程控、测试心脏置入型电子设备(cardiac implantable electrical devices,CIEDs)各项参数的常规方式相比,该非接触式远程程控系统在CIEDs置入过程中的的安全性和有效性。方法:本研究为回顾性研究。依照时间顺序,连续分析了自2020年8月至2021年3月,于我院接受CIEDs置入的110例患者,根据术中程控及测试方式,分为常规程控组及非接触组。入选患者中,59例常规组患者由技术服务人员术中现场程控,其余51例非接触组患者通过新型远程非接触系统程控。结果:常规组的开关门频率高于非接触组[(9.8±1.8)vs.(5.8±1.2),P<0.05]。在CIEDs置入期间和术后12个月时,常规组和非接触组之间的设备相关参数差异及手术相关不良事件差异无统计学意义。结论:基于5G通信传输技术的新型非接触性程控系统与传统的程控方法相比,是安全有效的。

基于RTD1296的私有存储设备的设计

为满足私有存储设备传输安全、传输数据高效、节省电能的需求,设计一种以RTD1296为控制核心的千兆私有存储设备。该设备搭载Ubuntu系统和SFTP服务器,确保数据传输安全;采用千兆以太网和千兆无线网卡无缝连接互联网,确保数据高效传输;使用ZeroTier异地组网技术实现内网穿透;使用MQTT技术实现设备远程开关机,达到节省电能和保护磁盘数据安全的效果;使用AIRKISS+ESPTOUCH技术实现智能手机配网;具有蓝牙连接一键唤醒设备,提醒用户备份,易用高效。实验结果表明,所设计的私有存储设备能够保证数据传输安全,相比于RTD1195存储设备,该设备的下载速度快3倍,上传速度快7倍,整机节能高达50%,可实现安全、高效、节能、易用的目标。

一种可远传的电力防外破太阳能声光警示装置的设计研究

本文设计了一种适用于架空线路的太阳能声光警示装置,通过在车辆通行区域上方的架空线路上安装该警示装置,夜间对过往车辆司机起到警示作用;通过测距传感器测量车辆靠近导线距离,达到阈值发出蜂鸣;通过对线路安全距离进行不定期测距,建立后台数据库,将数据远传,电力维护人员通过观测数据对存在隐患线路加强维护。根据隐患排查情况合理配置该装置,可以有效提高线路的安全运行稳定性,大大降低运维人员防止外力破坏的运营成本及作业风险,满足设备运行维护需求。

State of the art in movement around a remote point:a review of remote center of motion in robotics

The concept of remote center of motion(RCM)is pivotal in a myriad of robotic applications,encompa-ssing areas such as medical robotics,orientation devices,and exoskeletal systems.The efficacy of RCM technology is a determining factor in the success of these robotic domains.This paper offers an exhaustive review of RCM technologies,elaborating on their various methodologies and practical implementations.It delves into the unique characteristics of RCM across different degrees of freedom(DOFs),aiming to distill their fundamental principles.In addition,this paper categorizes RCM approaches into two primary classifications:design based and control based.These are further organized according to their respective DOFs,providing a concise summary of their core methodologies.Building upon the understanding of RCM’s versatile capabilities,this paper then transitions to an in-depth exploration of its applications across diverse robotic fields.Concluding this review,we critically analyze the existing research challenges and issues that are inherently present in both RCM methodologies and their applications.This discussion is intended to serve as a guiding framework for future research endeavors and practical deployments in related areas.

带式输送机转载点防堵装置的设计与应用

为了解决带式输送机转载点卡堵问题,城郊煤矿根据矿井主煤流带式输送机运输系统转载点卡堵主要是粘煤卡堵和大块矸石卡堵,提出了针对粘煤和大块矸石卡堵的解决方案。分析了两种卡堵情形原理,融合到转载点的改造设计中去,提出了通过高压水冲刷来解决粘煤卡堵,通过改造转载溜槽挡板的自由量,达到增加转载溜槽出口宽度的目的,从而提升大块矸石的通过空间。将两种情形的处理方式集中起来,改造设计了一种带式输送机转载点防堵装置,并对其进行远程控制改造。结果表明,通过对带式输送机转载溜槽的改造设计,逐步实现了带式输送机转载点卡堵的远程控制,充分解放了现场岗位人员,实现了减人提效。

动态心电图机技术现状与前景

动态心电图机在心血管疾病前期诊断中有着重要的数据支撑作用,在我国应用几十年来,在信息技术和医学推动下,其外型、采集方式及心电分析技术经历了深远的变化,动态心电技术的应用领域不断拓展。本文介绍了动态心电图机的工作原理、技术发展和应用领域,总结了动态心电图机的不足,对发展前景进行展望,未来将有多种形式的动态心电监测设备得到研发和推广应用,在心血管疾病的临床诊断、健康监测和康复养老等领域发挥更大的作用。

远程监护设备对不同居住安排老年人健康的影响——基于中国老年社会追踪调查的分析

远程监护设备通过监测老年人的体征、环境或需求,可以实现对老年人护理的远程辅助。基于中国老年社会追踪调查(CLASS)2018年度、2020年度的2期数据,分析4 503名老年人的调查问卷结果,运用个体固定效应模型,以老年人的3种居住安排(独居、仅与配偶同居、多代同居)作为调节变量,探究4类常见远程监护设备(智能手环/手表、居家监控摄像头、智能一体机/音箱、智能睡眠监测)的使用对城市居家老年人健康水平的影响。结果表明,至少使用其中一种设备即可对老年人的健康水平产生显著的提升效应。这一提升效应在独居老人群体中尤其突出,并且不同设备的影响也存在差异。揭示远程监护设备对老年人的健康效益存在居住安排方面的异质性,为智慧养老的研究和实践提供实证依据。

基于总线技术的超远距输送机保护装置状态采集系统设计

港口输送机系统通过现场设置保护装置来确保系统安全稳定运行。在分析对比当前主流的保护装置状态采集系统基础上,提出一种基于总线技术的超远距离带式输送机保护装置状态采集系统设计方案,给出了总线型保护开关采集系统框架及其关键技术。现场应用表明,该系统能够降低保护装置采集系统的采购及施工成本,加快项目建设进度,缩短项目建设周期,具有工程实践价值。

大型游乐设施无人机智能检验技术及应用研究

针对大型游乐设施高空不易达部位的远程可视化检测难题,本文提出将无人机技术应用于大型游乐设施检验检测,开展大型游乐设施无人机检测平台模块化集成设计、无人机高清视图远程实时在线传输和基于模糊支持向量机的游乐设施典型缺陷智能辨识方法的研究,最终形成一套适用于大型游乐设施的无人机检测系统。以高空飞翔类设备为例,开展了现场检测试验,可作为传统人工检验的一种辅助检测手段,更好地为游乐设施企业提供检验检测服务。

基于智能PPE穿戴设备的施工安全系统设计与实现

阐述智能个人防护装备(PPE)穿戴设备施工安全系统创新解决方案。探讨系统设计与架构、功能与应用、系统实施与测试方法,包括实时监测和报警机制、远程管理和指导、数据分析和预测。

浅析远程视频检查在医疗器械注册质量管理体系核查中的应用

在新冠疫情的影响下,远程视频检查成为医疗器械注册质量管理体系核查的重要方法之一。本文对医疗器械注册质量管理体系核查远程视频检查进行研究,分析远程检查的优势,剖析医疗器械注册质量管理体系核查环节应用远程视频检查的必然性,同时提出了远程视频检查的实施建议,包括设施设备要求和工作流程等,以期提升远程视频检查医疗器械注册质量管理体系工作效率和监管能力,为科学决策检查工作提供参考。

顾桥煤矿气力物料输送中转站硐室开挖技术研究

为解决顾桥煤矿1121(3)气力物料输送中转站硐室开挖施工效率低、出矸量大、人员劳动强度大和安全性差的技术难题,通过对硐室开挖施工工艺及方法的研究,决定采用爆破碎岩法和分层开挖法进行硐室开挖施工,并配合巷道修复机进行出矸作业。应用结果表明,该套技术与装备施工效率高、安全性好、人员劳动强度低、经济效益好。采用修复机出矸工效可达15 m^(3)/班,是人工出矸效率的13.6倍,可为类似矿山硐室开挖施工提供了技术与装备保障。

“互联网+”螺杆泵智能直驱装置系统节能增效

基于“信息化、节能降耗、安全环保”为目的,联合研制“互联网+”螺杆泵智能直驱装置系统。该系统由螺杆泵交流永磁直驱同步电动机、螺杆泵数字化变频控制柜和抽油杆柔性防反转电磁制动器等组成。智能化程度高,运行稳定,提效增产。该装置系统在胜坨油田14口螺杆泵采油井进行替换试验,2021—2023年共节电29.4862×10^(4)kWh,节能率为19.93%,节能降耗效果好。