scholarly journals Wireless communication for control of manipulation systems

2012 ◽  
Vol 22 (1) ◽  
pp. 29-41
Author(s):  
Květoslav Belda ◽  
Václav Rychnovský ◽  
Pavel Píša

Wireless communication for control of manipulation systemsThe paper deals with a novel application of the wireless data communication for a continual control of the distributed manipulation systems. The solution is intended for industrial robotic plants. A considered way of the wireless communication is based on ZigBee protocol. The protocol is tested for a real time bidirectional data communication within a manipulation system. The system consists of several moving manipulation units, several stationary auxiliary units and one control computer. The computer provides the cooperation of all units in the system in relation to the user requirements. The system is controlled by a simple feedback multi-level control realized in MATLAB - Simulink environment. The paper is focused on the realization of the boards of power electronics, transmitters, optical positional sensors, optical gates and their networking in accordance with ZigBee protocol definition. The behavior of the ZigBee is illustrated by several records from real experiments.

2006 ◽  
Vol 03 (04) ◽  
pp. 301-309 ◽  
Author(s):  
JINSHENG SUN ◽  
NING WANG ◽  
LIPING LIU

This paper points out the disadvantages of a formerly proposed data transfer mode used in the monitoring system of WTP. A data transmit solution which uses ZigBee wireless communication standard is proposed, and the technical characteristic of ZigBee technology is introduced. The hardware structure and software design are presented. The paper emphasizes on the realization of ZigBee protocol and data communication flow. The experimental results show that ZigBee is suitable for the wireless data transmission in the WTP. The reliable transmission of data to the control center of WTP has been realized in some in situ applications.


2021 ◽  
Vol 5 (1) ◽  
pp. 40-44
Author(s):  
Rendi Priyatna ◽  
Asep Andang ◽  
Firmansyah Maulana Sugiartana Nursuwars

Technological developments are a requirement for more practical system operation. One example is in data transmission. Wireless data communication is currently very popular. In today's revolution 4.0, of course, the use of cables in data transmission media is rarely used, but not every device supports wireless data communication. One of them is the PLC (Programable Logic Controller). As for additional extensions for PLCs to communicate wirelessly, they are sold separately and, of course, the price is quite expensive. Therefore, a solution for PLCs to communicate wirelessly using the TL-WN722N access point is widely available on the market. Measurements are made with the concept of point to point by looking at the results of modbus scans using Modscan32 on a PC server. The results show that the optimal maximum distance is 80 meters, with an average data transmission time of 1 second.


2017 ◽  
Author(s):  
Farheen Sulatana

With the advent of mobile technology, the wireless communication is becoming more popular than ever before. This is due to technological advances in wireless data communication devices. A primary requirement for the establishment of communication between two devices is that intermediate nodes should cooperate with each other. Presence of malevolent nodes may lead to serious security concerns. Preventing and detecting malicious nodes and attacks is a challenge. This Paper attempts to resolve this issue by designing a Cooperative Bait Detection Scheme (CBDS) that has advantages of both proactive and reactive defense architectures.


Author(s):  
Zheng Xiao

Background: In order to study the interference of wired transmission mode on robot motion, a mobile robot attitude calculation and debugging system based on radio frequency (RF) technology is proposed. Methods: Microcontroller STM32 has been used as the control core for the attitude information of the robot by using MEMS gyroscope and accelerometer. The optimal attitude Angle of the robot is calculated through nRF24L01 which is the core of the wireless communication module, attitude acquisition module and wireless data communication upper computer application platform. Results: The results shows that the positioning accuracy is better than±5mm. Conclusion: The experimental results show that the proposed attitude solving and debugging system of mobile robot based on RF technology has better reliability and real-time performance. The propped model is convenient for debugging of mobile robot system and has certain engineering application value.


2010 ◽  
Vol 455 ◽  
pp. 206-210
Author(s):  
Jun Li Liu ◽  
Yan Yan Yan ◽  
G.Q. He

It discusses the reasons of the data transmission time delay and packets loss based on the theory of net data transmission. Aimed to the question of the time delay of data transmission and packets loss, the control system models are set up to analyze their influence to the performance of the control system. Based on the synchronous control model analysis with wireless data transmission, a method to control the system is reached with the state prediction when the communication error or data loss appears. It can control constantly when communication errors appear, and also it can get the most error period by numerical analysis.


1994 ◽  
Vol 40 (1) ◽  
pp. 20-27 ◽  
Author(s):  
Tay-Her Tsaur ◽  
Kwang-Cheng Chen ◽  
Chenhsin Lien ◽  
Ming-Tang Shih ◽  
C.P.J. Tzeng

2021 ◽  
Vol 2021 ◽  
pp. 1-13
Author(s):  
Nikta Pournoori ◽  
Lauri Sydänheimo ◽  
Yahya Rahmat-Samii ◽  
Leena Ukkonen ◽  
Toni Björninen

We present a meandered triple-band planar-inverted-F antenna (PIFA) for integration into brain-implantable biotelemetric systems. The target applications are wireless data communication, far-field wireless power transfer, and switching control between sleep/wake-up mode at the Medical Device Radiocommunication Service (MedRadio) band (401–406 MHz) and Industrial, Scientific and Medical (ISM) bands (902–928 MHz and 2400–2483.5 MHz), respectively. By embedding meandered slots into the radiator and shorting it to the ground, we downsized the antenna to the volume of 11 × 20.5 × 1.8 mm3. We optimized the antenna using a 7-layer numerical human head model using full-wave electromagnetic field simulation. In the simulation, we placed the implant in the cerebrospinal fluid (CSF) at a depth of 13.25 mm from the body surface, which is deeper than in most works on implantable antennas. We manufactured and tested the antenna in a liquid phantom which we replicated in the simulator for further comparison. The measured gain of the antenna reached the state-of-the-art values of −43.6 dBi, −25.8 dBi, and −20.1 dBi at 402 MHz, 902 MHz, and 2400 MHz, respectively.


Author(s):  
Arash Aziminejad ◽  
Yan He

Abstract Radio-based Communication-Based Train Control (CBTC) systems are widely utilized in major urban centers around the world to improve capacity, performance, and safety of public rail transportation systems. The system primary functionalities are performed based on the wireless mobile communication media, through which wayside-onboard communication data links are established. The focus of the presented research is to improve the performance of the CBTC wireless network by providing an efficient framework for placement optimization of the wayside transceivers aiming to maximize the radio coverage. The QoS-oriented convex optimization cost function is based on a heuristic model of radio wave propagation in the tunnel environment. The optimization engine uses the robust, efficient, and well-behaved Nelder-Mead algorithm. Furthermore, to provide reliable means for verification, numerical results are compared with measured data produced through an empirical site survey process performed for an actual CBTC system deployment.


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