Implementing remote controlled-NOT gates and entanglement swapping via geometric phase gates in ion-trap systems

We propose a scheme for the implementation of remote controlled-NOT gates and entanglement swapping via geometric phase gates in ion-trap systems. The proposed scheme uses the two ground states of the A-type ions as memory instead of the vibrational mode. And the system is robust against the spontaneous radiation and the dephasing.

Data Logging and Control of a Remote Inverter Using LoRa and Power Line Communication

For decades, the power system was highly centralized. With the growing integration of distributed generations into the system, there is a necessity for bi-directional communication methods to monitor and control the remote assets. The primary objective of this paper is to develop a communication link for monitoring and controlling a grid-connected inverter in a remote location. Furthermore, the paper presents developments that have been incorporated to improve the communication link. The literature survey indicates that LoRa is superior compared to other technologies, but has some security and reliability issues. This paper also presents an encryption algorithm to improve the security of the LoRa link. Local data storage added to the system before transmitting data increases the system reliability. A display at the transmission end is added to improve the user-friendliness of the communication link. A Powerline Communication link is parallelly added to the LoRa link to improve the reliability. Finally, tests are conducted with an actual inverter and the results are presented. The tests show that the developed communication link has improved security and reliability, while its open nature makes it highly scalable and adaptable for employment in other smart grid applications.

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.

Error analysis for remote nonlinear iterative learning control system with wireless channel noise

In this paper, the iterative learning control problem is considered for a class of remote control system over wireless network communication channel. The control performance of remote iterative learning control （R-ILC） system is analyzed and an error boundary of the stable output of the R-ILC system is obtained for the boundary stochastic noise channel. Finally, we obtain some rules to reduce the fluctuation caused by wireless channel noise through the analysis results for fluctuation boundary. The simulation results prove the proposed rule is correct.

Enhancement of Stabilization Control in Remote Robot System with Force Feedback

In this paper, we deal with a remote robot system in which a user can operate an industrial robot with a force sensor at a remote location by using a haptic interface device. We apply a method using the wave filter together with the phase control filter which was previously proposed by the authors to the remote robot system for stabilization control. We also propose a method to enhance the haptic quality. By experiment, we demonstrate the effectiveness of the proposed method. We compare the proposed method with the conventional method quantitatively and clarify which domains the proposed method is applied to more effectively.

The Ways of Thinking in a Sample of the Student Community of the Subjects of Structured Programming and Numerical Methods in Engineering of the UAM-Azcapotzalco within the Emerging Remote Teaching Project (PEER)

Due to the pandemic that is currently being experienced worldwide, educational institutions (HEIs) have had to reinvent and innovate the mode of teaching, in order to continue the process of training students at all educational levels. Higher education has not been immune to this situation, the institutions of this educational level face various challenges in remote teaching: one of them, perhaps the most important, was to answer the question: How to get the student to continue their undergraduate studies remotely? In this sense, it was necessary, on the part of the students and the teachers, a preparation to go from the face-to-face to the virtual mode. This paper addresses the specific case of the analysis of the teaching-learning process of the Teaching-Learning Unit (UEA for its acronym in Spanish) of Structured Programming and Numerical Methods for Engineering at the undergraduate level, at the Universidad Autónoma Metropolitana, Unidad Azcapotzalco (UAM-A) and its relation to the student’s way of thinking. Likewise, the analysis will be carried out if the way of thinking of the students of the sample influences their academic performance when studying the subject of Structured Programming and Numerical Methods for Engineering.

Design and implementation of an expert system for remote fault diagnosis in ship lift

In this paper an expert system for remote fault diagnosis in the ship lift was developed by analysis of the fault tree and combination with VPN. The fault tree was constructed based on the operation condition of the ship lift. The diagnosis model was constructed by hierarchical classification of the fault tree structure, and the inference mechanism was given. Logical structure of the fault diagnosis in the ship lift was proposed. The implementation of the expert system for remote fault diagnosis in the ship lift was discussed, and the expert system developed was realized on the VPN virtual network. The system was applied to the Gaobaozhou ship lift project, and it ran successfully.

An Implanted Closed-loop Chip System for Heart Rate Control:System Design and Effects in Conscious Rats

Objective： To evaluate the efficiency of an implanted chip system for the control of heart rate （HR）. Methods： The HR was recorded in six conscious Sprague-Dawley （SD） rats. An implanted chip system was designed to regulate the HR by stimulating the right cervical vagus nerve according to the feedback of real time HR. Each rat was subjected to 30-min regulation and 30-min recovery. The change of HR during the regulation period was compared with the control. The ECG was recorded during the experiment for 24 h. Results： The ECG signals were successfully recorded during the experiment. The HR was significantly decreased during the period of regulation compared with control （-79.3 ± 34.5, P 〈 0.01, n = 6） and then recovered to normal after regulation. Conclusion： The described implanted chip system can regulate the HR to a designated set point.

Multi-modal human-machine interface of a telerobotic system for remote arc welding

In telerobotic system for remote welding, human-machine interface is one of the most important factor for enhancing capability and efficiency. This paper presents an architecture design of human-machine interface for welding telerobotic system： welding multi-modal human-machine interface. The human-machine interface integrated several control modes, which are namely shared control, teleteaching, supervisory control and local autonomous control. Space mouse, panoramic vision camera and graphics simulation system are also integrated into the human-machine interface for welding teleoperation. Finally, weld seam tracing and welding experiments of U-shape seam are performed by these control modes respectively. The results show that the system has better performance of human-machine interaction and complexity environment welding.

Kinematic Control of Serial Manipulators Under False Data Injection Attack

With advanced communication technologies,cyberphysical systems such as networked industrial control systems can be monitored and controlled by a remote control center via communication networks.While lots of benefits can be achieved with such a configuration,it also brings the concern of cyber attacks to the industrial control systems,such as networked manipulators that are widely adopted in industrial automation.For such systems,a false data injection attack on a control-center-to-manipulator(CC-M)communication channel is undesirable,and has negative effects on the manufacture quality.In this paper,we propose a resilient remote kinematic control method for serial manipulators undergoing a false data injection attack by leveraging the kinematic model.Theoretical analysis shows that the proposed method can guarantee asymptotic convergence of the regulation error to zero in the presence of a type of false data injection attack.The efficacy of the proposed method is validated via simulations.

A DoS Attacks Detection Aglorithm Based on Snort-BASE for Robotic Arm Control Systems

In response to the frequent safety accidents of industrial robots, this paper designs and implements a safety detection system for robot control. It can perform real-time security detection of robot operations on industrial production lines to improve the security and reliability of robot control systems. This paper designs and implements a robot control system based Snort-BASE for real-time online detection of DoS attacks. The system uses a six-degree-of-freedom robotic arm as an example, uses Snort to record the network communication data of the robot arm control system in real time, and filters the network traffic through self-defined rules, and then uses the BASE analysis platform to achieve security analysis of the network traffic. The solution verifies the effectiveness of online real-time detection of attacks and visualisation of attack records by designing simulated robotic arm and real robotic arm attack experiments respectively, thus achieving the security of network communication of the robot remote control system.

Study on control information network and its real-time property

The control network is an important developmental orientation in the remote control system. As the control network and information network are comparatively alike in the framework and technology, we can build a control network which is similar to the common information network. In the era when the information network is becoming increasingly mature, it is a royal road to construct or rebuild a control information network in the development of the control network by relying on the achievements made in the information network or current information resources. This paper expounds the construction idea of the control information network, gives the idiographic realization method and then researches into the real-time problem encountered in the control information network, and presents a three-closed-loop control system based on virtualized reality. The feasibility of the idea is validated via experiments and simulations separately.

遥控自走式雪茄植株中下层烟叶植保喷雾机设计与试验

针对雪茄烟叶在旺长期及成熟期因植株高大及叶片生长致使烟田垄间空间小,且雪茄烟叶生产对烟叶色泽及完整度要求高,田间管理要求不能损伤烟叶,导致生产中雪茄烟叶植株中下层烟叶植保困难的问题,结合烟叶植株生长特征,设计了一种遥控自走式雪茄植株中下层烟叶植保喷雾机,该装置主要包括喷雾系统、履带底盘及控制系统,可实现装置在烟田垄间遥控行走、中下层烟叶喷雾及路况可视等功能。为获取烟株生长特征,运用三维激光扫描仪对其进行扫描并建立了植株叶片田间空间分布模型;根据烟叶田间分布特征,确定装置总体结构和工作方式;结合烟叶形态特征和植保农艺要求,对喷雾系统进行了结构设计及分析,确定了参数范围;根据田间作业需求,对履带底盘进行了动力学分析,对控制系统进行了设计。开展了场地试验,利用Box-Behnken优化了喷雾系统参数,当喷雾压力为0.65 MPa、喷嘴夹角为20.4°、喷嘴孔径为0.4 mm时,经垂直雾滴分布测量仪模拟雪茄烟叶叶片层垂直方向的药液附着性能试验表明,雾滴沉积量垂直分布满足雪茄烟叶植保要求。田间试验结果表明,雪茄植株中下层烟叶正面药液覆盖率为52%~83%,背面药液覆盖率为22%~45%,可实现雪茄植株中下层烟叶药液的有效喷施。

蔗渣智能液压打包机设计与试验

开发了一款蔗渣智能液压打包机(以下简称蔗渣打包机),采用结构紧凑、稳定性较好的一体化液压回路系统执行打包动作。设计了基于PLC的控制系统,以简化设备操作,实现所需的控制功能。系统能够远程控制蔗渣打包机的启动、打包、送料、计数和停止等动作,同时可以单独控制蔗渣打包机各个电气设备的启停。该系统还具备智能打包功能,可显著改善工作环境,提高工作效率,降低成本。1名操作员能够同时管理3~4台设备,同时远程控制功能还可以避免因工人操作设备而引发的安全事故。

基于B/S架构的远程会诊质控系统的设计与应用

目的研发远程会诊质控系统,在区域内实现远程会诊质控、管理、监管、考评、统计和持续改进的信息化。方法2020年,组建多学科团队,运用智力激励法和专题小组讨论法,基于B/S架构研发远程会诊质控系统,与既有远程会诊信息系统完全嵌合兼容,满足远程会诊全流程质量管理的功能需求。结果针对远程会诊质控工作要求,系统设计研发了质控管理、质控考评、实时监管、统计分析4个子模块,可满足远程会诊全流程质量管理的功能需求。结论该质控系统创新了远程会诊信息化质量管理模式,在区域内实现了远程会诊全流程的信息化管理,取得了较好的质量管理成效,有效促进区域内远程会诊工作的推进和发展。

基于家庭远程血压/心率监测系统的医院外心衰管理效果观察

目的分析家庭远程血压/心率监测在左心力衰竭(心衰)合并高血压患者中的医院外应用效果。方法前瞻性选取2020年7月至2021年6月粤北人民医院心血管内科住院确诊为左心衰合并高血压患者420例,根据患者出院后是否同意进行家庭远程血压/心率监测分为远程监测组(112例)和常规随诊组(278例)。远程监测组每天早、晚进行血压和心率测量并上传数据至医护终端,医护团队根据测量结果及时指导患者生活方式、用药及进一步治疗;常规随访组自行测量血压和心率并登记,定期门诊随诊。记录2组患者出院后第1、3、6、12个月血压和心率控制值,非计划再次入院率及时间间距,全因死亡和心血管疾病死亡情况。结果远程监测组患者出院后第1、3、6、12个月收缩压,以及出院后第6、12个月心率均明显低于常规随访组,非计划再次入院率明显低于常规随访组,再入院时间间距明显长于常规随访组,差异均有统计学意义(P<0.05);2组患者全因死亡率、心血管疾病死亡率比较,差异均无统计学意义(P>0.05)。结论家庭远程血压/心率监测有利于平稳控制心衰合并高血压患者出院后的血压和心率,延迟患者再入院时间间距,降低患者再住院率。

基于云计算的农业机器人远程实时控制系统研究

首先,介绍了农业机器人软硬件平台,建立了其移动模型;然后,基于云计算设计了远程实时控制系统;最后,实现了农业机器人远程实时控制和通信系统,操作人员可以通过遥操作实现对该机器人的远程控制。实验结果表明:农业机器人能够按照操作指令从起点A行走到终点B,且系统具有延迟低、灵活性较好等优点,具备一定的可靠性和可行性。

瓦斯蓄热氧化井筒加热系统智能化研究

针对瓦斯蓄热氧化井筒加热系统存在的智能化水平落后于实际生产需求,影响生产效率和生产安全的问题,在原瓦斯蓄热氧化井筒加热控制系统初步具备远程控制的基础上,开展了智能化相关研究。介绍了瓦斯蓄热氧化井筒加热系统的工艺单元结构,重点分析了系统监控远程化、调控智能化、故障诊断智能化等方面的研究。某煤矿瓦斯蓄热氧化井筒加热系统智能化改造的应用案例表明:改造后的系统实现了远程监测及控制、故障智能化诊断及智能化调控功能,提高了装置运行安全性和经济性。

基于STM32的智能消杀机器人设计

为解决传统人工消杀流程繁琐、效率低且难以保障工作人员的安全问题,结合消杀场所实际情况,设计了一种可适应于多种场合的新型消杀机器人完成消杀作业。使用STM32F407芯片作为防疫消杀机器人的控制核心,通过ESP8266 WiFi模块收到指令并前往相应的位置执行,使用K210搭配YOLO算法进行目标检测,并通过模糊PID算法提升了机器人导航偏差校正的功能。使用三维建模软件SolidWorks对本装置进行实体参数化建模,并对核心部件进行仿真,使其满足强度要求。该机器在一定范围内的未知环境中能完成智能避障、地图构建和路径规划,可以实现区域全面消杀、人员自动测温、语音警示播报等功能。结果测试表明,所设计的消杀机器人具有稳定可靠、高精度、低功耗等特点,能够有效降低工作人员的病毒感染风险及工作强度,提高消杀工作效率,具有一定的实用价值。

基于北斗/GPS双模的船舶通信航标遥测遥控系统

为解决船舶在复杂海况下信号不稳定问题,提升信息传输的安全性和抗干扰能力,获取准确、可靠的船舶位置信息,设计基于北斗/GPS双模的船舶通信航标遥测遥控系统。船舶通信航标终端利用北斗/GPS双模定位模块,解决船舶在复杂海况下信号不稳定问题,提升信息传输的安全性和抗干扰能力,获取准确、可靠的航标位置信息;利用温湿度传感器,采集航标附近环境信息,并通过北斗通信卡传输信息到终端管理中心;终端管理中心根据接收的信息,实时更新显示航标相关信息,并向船舶通信航标终端发送控制指令,确保船舶的航行安全和效率。实验证明,该系统可有效采集航标附近的环境信息,精准定位船舶位置;该系统可实现船舶通信航标的遥测遥控,确保船舶安全航行。