Remote control of a high-speed pellet injector and data synchronization & sharing tools

2019 ◽  
Vol 146 ◽  
pp. 1355-1359
Author(s):  
F. Iannone ◽  
A. Frattolillo ◽  
F. Bombarda ◽  
G. D’Elia ◽  
S. Migliori ◽  
...  
2013 ◽  
Vol 38 (4) ◽  
pp. 441-445 ◽  
Author(s):  
Chang-sheng XIE ◽  
Pin JIANG ◽  
Wen-wu HU ◽  
Ya-hui LUO ◽  
Yan-li TONG

Insects ◽  
2020 ◽  
Vol 11 (7) ◽  
pp. 446
Author(s):  
Robin Wootton

The nature, occurrence, morphological basis and functions of insect wing deformation in flight are reviewed. The importance of relief in supporting the wing is stressed, and three types are recognized, namely corrugation, an M-shaped section and camber, all of which need to be overcome if wings are to bend usefully in the morphological upstroke. How this is achieved, and how bending, torsion and change in profile are mechanically interrelated, are explored by means of simple physical models which reflect situations that are visible in high speed photographs and films. The shapes of lines of transverse flexion are shown to reflect the timing and roles of bending, and their orientation is shown to determine the extent of the torsional component of the deformation process. Some configurations prove to allow two stable conditions, others to be monostable. The possibility of active remote control of wing rigidity by the thoracic musculature is considered, but the extent of this remains uncertain.


2011 ◽  
Vol 228-229 ◽  
pp. 340-344
Author(s):  
Chuan Can Chen ◽  
Xi Dong Chen

In order to make better use of excavator in foundation pit, a new excavator with telescopic arm is designed in this paper. The innovations mainly manifests in four aspects. First, the use of telescopic arm decreases the height for the excavation in foundation pit. Secondly, the design of truss-guide and trolley brings a high speed to excavator’s lateral move in large scale, easy for dirt shoveling in the wide foundation pit. Thirdly, the travelling system with two pails of dual-pedrail makes it possible for excavator free walking, flexible steering, and obstacle avoiding. The last but not the least, the wireless remote control technology can keep operators distant from danger and other unpleasant working conditions.


2022 ◽  
pp. 147592172110634
Author(s):  
Jaebeom Lee ◽  
Seunghoo Jeong ◽  
Junhwa Lee ◽  
Sung-Han Sim ◽  
Kyoung-Chan Lee ◽  
...  

Structural condition monitoring of railway bridges has been emphasized for guaranteeing the passenger comfort and safety. Various attempts have been made to monitor structural conditions, but many of them have focused on monitoring dynamic characteristics in frequency domain representation which requires additional data transformation. Occurrence of abnormal structural responses, however, can be intuitively detected by directly monitoring the time-history responses, and it may give information including the time to occur the abnormal responses and the magnitude of the dynamic amplification. Therefore, this study suggests a new Bayesian method for directly monitoring the time-history deflections induced by high-speed trains. To train the monitoring model, the data preprocessing of speed estimation and data synchronization are conducted first for the given training data of the raw time-history deflection; the Bayesian inference is then introduced for the derivation of the probability-based dynamic thresholds for each train type. After constructing the model, the detection of the abnormal deflection data is proceeded. The speed estimation and data synchronization are conducted again for the test data, and the anomaly score and ratio are estimated based on the probabilistic monitoring model. A warning is generated if the anomaly ratio is at an unacceptable level; otherwise, the deflection is considered as a normal condition. A high-speed railway bridge in operation is chosen for the verification of the proposed method, in which a probabilistic monitoring model is constructed from displacement time-histories during train passage. It is shown that the model can specify an anomaly of a train-track-bridge system.


Author(s):  
Kelvin C. P. Wang ◽  
Xuyang Li ◽  
Robert P. Elliott

Images of highway right-of-way are used widely by highway agencies through their photologging services to obtain visual information for the analysis of traffic accidents, design improvement, and highway pavement management. The video data usually are in analog format, which is limited in accessibility and search, cannot automatically display site engineering data sets with video, and does not allow simultaneous access by multiple users. Recognizing the need to improve the existing photologging systems, the state highway agency of Arkansas sponsored a research project to develop a full digital, computer-based highway information system that extends the capabilities of existing photologging equipment. The software technologies developed for a distributed multimedia-based highway information system (MMHIS) are presented. MMHIS removes several limitations of the existing systems. The advanced technologies used in this system include digital video, data synchronization, high-speed networking, and video server. The developed system can dynamically link the digital video with the corresponding engineering site data based on a novel algorithm for the data synchronization. Also presented is a unique technique to construct a three-dimensional user interface for MMHIS based on the terrain map of Arkansas.


2012 ◽  
Vol 24 (1) ◽  
pp. 180-190 ◽  
Author(s):  
Kiyoshi Hoshino ◽  
◽  
Takuya Kasahara ◽  
Motomasa Tomida ◽  
Takanobu Tanimoto ◽  
...  

The purpose of this paper is to propose a remotecontrolled robot system capable of accurate highspeed performance of the same operation strictly conforming to human operator movement without sensors or special control means. We specifically intend to implement high-precision high-speed 3D hand pose estimation enabling a remote-controlled robot to be operated using two cameras installed loosely orthogonally using one ordinary PC. The two cameras have their own database. Once sequential hand images are shot at high speed, the system starts selecting one database with bigger size of hand region in each recorded image. Coarse screening then proceeds based on proportional hand image information roughly corresponding to wrist rotation or thumb or finger extension. Finally, a detailed search is done for similarity among selected candidates. Experiments show that mean and standard deviation scores of errors in estimated angles at the proximal interphalangeal (PIP) index are 0.45 ± 14.57 and at the carpometacarpal (CM) thumb 4.7 ± 10.82, respectively, indicating it as a high-precision 3D hand pose estimation. Remote control of a robot with the proposed vision system shows high performance as well.


1996 ◽  
Vol 4 (2) ◽  
pp. 18-21 ◽  
Author(s):  
Nancy R. Smith ◽  
Don Pardoe ◽  
Corinne Pelote ◽  
Mark Honer ◽  
Christopher L. Morgan

California State University, Hayward has successfully demonstrated remote control of a scanning electron microscope (SEM) using Asynchronous Transfer Mode (ATM). The development of digital imaging technology has iead to exploration and testing of networking strategies for sharing scientific instrumentation. The concept of shared instrumentation is appealing to both academia and private enterprise. Networking access presents the opportunity to teach scanning electron microscopy to a large number of students using multiple desktop computers. Video images can also be projected onto large screens in classrooms or as a distant learning resource. Remote shared access to scientific equipment provides certain advantages such as access to a wider variety of resources, direct interaction without hazard to people or equipment, ability to combine resources into larger virtual instruments, rapid access to available resources, and pooling of knowledge by a larger community.The advent of high speed networks such as ATM offers the possibility of integrated solutions to communication and control.


1962 ◽  
Vol 71 (1A) ◽  
pp. 481-481
Author(s):  
Fred A. Metlen

Author(s):  
Sukjune Yoon ◽  
Chun-Kyu Woo ◽  
Hyun Do Choi ◽  
Sung-Kee Park ◽  
Sung-Chul Kang ◽  
...  

The purpose of this project is to develop a mobile robot for hazardous terrain exploration. The exploration of hazardous terrain requires the development of a passive mechanism adaptable to such terrain and a sensing system for obstacle avoidance, as well as a remote control. We designed a new mobile robot, the Ronahz 6-wheel robot, which uses a passive mechanism that can adapt to hazardous terrains and building stairways without any active control. The suggested passive linkage mechanism consists of a simple four-bar linkage mechanism. In addition, we install a stereo vision system for obstacle avoidance, as well as a remote control. Wide dynamic range CCD cameras are used for outdoor navigation. A stereo vision system commonly requires high computational power. Therefore, we use a new high-speed stereo correspondence algorithm, triangulation, and iterative closest point (ICP) registration to reduce computation time. Disparity maps computed by a newly proposed, high-speed method are sent to the operator by a wireless LAN equipment. At the remote control site, a three-dimensional digital map around a mobile robot is built by ICP registration and reconstruction process, and this three-dimensional map is displayed for the operator. This process allows the operator to sense the environment around the robot and to give commands to the mobile robot when the robot is in a remote site.


2013 ◽  
Vol 401-403 ◽  
pp. 1728-1733
Author(s):  
San Min Shen ◽  
Jing Cui ◽  
Wen Yi Liu

In the environment of harsh weather or obstacles, the corresponding monitoring department can't achieve remote control and acquire the accurate location of the unmanned aerial vehicle (UAV). According to the existing problem this paper designs a logical control module based on single chip microcomputer (SCM) C8051F040 and UAV real-time tracking system which is positioned by GPS. In this design, through the analysis and extraction of the GPS data, then transmit these data to the host computer through the USB interface with high speed, the unmanned aerial vehicle (UAV) flight vector position such as longitude and altitude information will be displayed by the host computer. After tested for several times, this vector pursuit system can acquire the accurate position of the unmanned aerial vehicle (UAV) and the corresponding flight path within 20 km. To some extent, it provides an effective guarantee for the remote control and monitoring department.


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