Design of the Lower Extremity Rehabilitation Robot Communication System

According to this analysis, we designed a scenario on lower extremity rehabilitation robot communication system based on CAN bus and efficiently solved the problems of low signal processing, computing power and data transfer rate ability for the traditional means of communication of RS232 and RS485.The research deals with the characteristics of communication systems and topological structure, and specifically, with CAN bus protocol design and hardware and software implementation aspects of Communication System designing for some robot sensor.

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Research of the Channel Estimation in Wireless Communication Systems

ITM Web of Conferences ◽

10.1051/itmconf/20192501002 ◽

2019 ◽

Vol 25 ◽

pp. 01002 ◽

Cited By ~ 1

Author(s):

Lili Zhao ◽

Peng Zhang ◽

Qicai Dong ◽

Xiangyang Huang ◽

Jianhua Zhao ◽

...

Keyword(s):

Wireless Communication ◽

Channel Estimation ◽

Communication Technology ◽

Communication Systems ◽

Communication Channel ◽

Data Transfer ◽

Estimation Methods ◽

Wireless Communication Systems ◽

Data Transfer Rate

Wireless communication technology has been developed rapidly after entering the 21st century. Data transfer rate increased significantly as well as the bandwidth became wider and wider from 2G to 4G in wireless communication systems. Channel estimation is an import part of any communication systems; its accuracy determines the quality of the whole communication. Channel estimation methods of typical wireless communication systems such as UWB, 2G and 3G have been researched.

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Design and Application of Measure and Control System Based on CAN-Bus for Large Pumping Station Auxiliary Equipments

Applied Mechanics and Materials ◽

10.4028/www.scientific.net/amm.385-386.818 ◽

2013 ◽

Vol 385-386 ◽

pp. 818-822

Author(s):

Gui Lin Zheng ◽

Zhen Jie Wang

Keyword(s):

Control System ◽

Data Transfer ◽

Can Bus ◽

Signal Transmission ◽

Data Transfer Rate ◽

Pumping Station ◽

Transmission Errors ◽

Measure And Control System ◽

And Control ◽

Improve Stability

This paper is focused on the measure and control system for large pumping station auxiliary equipments. The design of system has advantages as follows, functions of sensing measure, compensation calculation and policy control are decentralized to the intelligent measure and control equipments in the field improve stability and reliability of the system; digitalized application eliminates the analog signal transmission errors and fundamentally improves the accuracy of measure and control; CAN-Bus has a higher data transfer rate and distribution capacity of bus resources; isolated CAN-Bus design makes the system anti-overvoltage ability strong; simple requirements of communication network wiring highlight the economy of the system. The application of the system is also described in the paper.

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CAN bus application layer protocol design for space manipulator communication system

2017 IEEE 2nd Advanced Information Technology, Electronic and Automation Control Conference (IAEAC) ◽

10.1109/iaeac.2017.8054289 ◽

2017 ◽

Author(s):

Liu Tianming

Keyword(s):

Communication System ◽

Can Bus ◽

Protocol Design ◽

Application Layer ◽

Space Manipulator ◽

Application Layer Protocol

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Efficient Data Transfer Rate and Speed of Secured Ethernet Interface System

International Scholarly Research Notices ◽

10.1155/2016/9458627 ◽

2016 ◽

Vol 2016 ◽

pp. 1-8

Author(s):

Shaila Ghanti ◽

G. M. Naik

Keyword(s):

Communication Systems ◽

Transfer Rate ◽

Data Transfer ◽

The Internet ◽

Data Transfer Rate ◽

Protection Method ◽

Automation Systems ◽

Interface System ◽

On Chip ◽

Ethernet Interface

Embedded systems are extensively used in home automation systems, small office systems, vehicle communication systems, and health service systems. The services provided by these systems are available on the Internet and these services need to be protected. Security features like IP filtering, UDP protection, or TCP protection need to be implemented depending on the specific application used by the device. Every device on the Internet must have network interface. This paper proposes the design of the embedded Secured Ethernet Interface System to protect the service available on the Internet against the SYN flood attack. In this experimental study, Secured Ethernet Interface System is customized to protect the web service against the SYN flood attack. Secured Ethernet Interface System is implemented on ALTERA Stratix IV FPGA as a system on chip and uses the modified SYN flood attack protection method. The experimental results using Secured Ethernet Interface System indicate increase in number of genuine clients getting service from the server, considerable improvement in the data transfer rate, and better response time during the SYN flood attack.

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Real Performance Evaluation On MQTT and COAP Protocol in Ubiquitous Network Robot Platform (UNRPF) for Disaster Multi-robot Communication

EMITTER International Journal of Engineering Technology ◽

10.24003/emitter.v6i2.305 ◽

2018 ◽

Vol 6 (2) ◽

pp. 369-385 ◽

Cited By ~ 1

Author(s):

Muhammad Ikrar Yamin ◽

Son Kuswadi ◽

Sritrusta Sukaridhoto

Keyword(s):

Transfer Rate ◽

Data Transfer ◽

Data Transfer Rate ◽

Good Communication ◽

Mesh Topology ◽

Real Performance ◽

Internet Of Things Technology ◽

Robot Communication ◽

Robot Platform ◽

Multi Robot

Disaster multi-robot has a significant role in a disaster area to do many tasks like detection of fire, search and rescue of victims, etc. It needs to build good communication between the operator and multi-robot and among multi-robot themselves to perform their tasks quickly and efficiently. This relates with the queue message protocol system. In this research, we implemented the queue message protocol on mesh topology and integrated it on the robot platform. Recently, development of IoT (Internet of Things) Technology causes development of communication protocol. MQTT and CoAP are among the communication protocols used for IoT needs.Â BothÂ protocols performance were compared when Â used and implemented into disaster multi-robot. We also integrated MQTT protocol and robotÂ platform python based (UNR-PF). The result shows that MQTT protocol is easier to beÂ implemented on to disaster multi-robot platform (UNR-PF) on mesh topology than CoAP, and that data transfer rate of MQTT protocol has data transfer rate higher than CoAP.

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Research of Link Adaptation Technology and Solutions in Wireless Communication Network

Applied Mechanics and Materials ◽

10.4028/www.scientific.net/amm.336-338.1757 ◽

2013 ◽

Vol 336-338 ◽

pp. 1757-1760

Author(s):

Lu Cao ◽

Ying Xu ◽

Tian Lei Wang

Keyword(s):

Mobile Communication ◽

Technology Implementation ◽

Communication Systems ◽

Transfer Rate ◽

Data Transfer ◽

Link Adaptation ◽

Adaptive Modulation And Coding ◽

Utilization Rate ◽

Spectrum Utilization ◽

Data Transfer Rate

With the rapid growth of the demand for wireless data services, it becomes a hotspot in the field of mobile communication to maximize data transfer rate on the limited bandwidth. Link adaptation technology has a strong advantage in improving the data transfer rate and the spectrum utilization rate, thus becoming one of the key technologies in current and future mobile communication systems. This paper aims to study the adaptive technology of the wireless link, emphasizing on the basic principles and existing implementations of the adaptive modulation and coding (AMC) and the hybrid-automatic repeat request (HARQ) which are both mainstream link adaptive technologies. Finally, a new link adaptation technology implementation is given by combining the advantages of AMC and HARQ.

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Implementasi Reflector Antena Wajanbolik Pada Layanan EVDO (Evolution Data Optimized)

ELKOMIKA Jurnal Teknik Energi Elektrik Teknik Telekomunikasi & Teknik Elektronika ◽

10.26760/elkomika.v1i1.1 ◽

2013 ◽

Vol 1 (1) ◽

pp. 1

Author(s):

BIMA BIMA ◽

LITA LIDYAWATI ◽

ARSYAD RAMADHAN DARLIS

Keyword(s):

Communication Systems ◽

Transfer Rate ◽

Data Transfer ◽

Reflector Antenna ◽

Wireless Communication Systems ◽

Data Transfer Rate ◽

Average Data ◽

Transfer Data ◽

Cdma 2000 ◽

Indoor Conditions

ABSTRAKAntena merupakan perangkat yang memiliki peranan yang sangat penting dalam sistem komunikasi tanpa kabel (wireless). Pada penelitian ini akan diimplementasikan reflektor antena wajanbolik yang beroperasi pada frekuensi CDMA 2000 1x EVDO 1900 MHz. Antena ini menggunakan reflektor dari wajan, dengan waveguide dari pipa paralon yang dilapisi dengan lakban alumunium, dan penerima sinyal menggunakan USB modem adapter. Antena ini ditujukan untuk menjadi media bantu dalam memperkuat penerimaan sinyal EVDO dan memaksimalkan dan kecepatan transfer data. Antena ini memberikan gain sebesar 15,530 dB berdasarkan pengukuran dan 15,156 dB berdasarkan teoritis. Pengujian menggunakan wajanbolik menunjukkan adanya peningkatan level sinyal modem yang terendah sebesar 4 dB pada pengukuran dengan kondisi indoor di siang hari serta tertinggi sebesar 19 dB pada pengukuran dengan kondisi outdoor di malam hari. Hasil dari pengujian pun menunjukkan peningkatan kecepatan transfer data rata – rata sebesar 42 KBps sampai dengan 269 KBps dibandingkan pengukuran tanpa wajanbolik.Kata kunci: Reflektor, Waveguide, Wajanbolik, USB adapter, EVDO. ABSTRACTThe antenna is a device that has a very important role in wireless communication systems (wireless). In this research will be implemented wajanbolik reflector antenna which operates at frequencies of CDMA 2000 1x EVDO 1900 MHz. This antenna uses a reflector of the pan, with the waveguide of the pipe is coated with aluminum duct tape, and a signal receiver using a USB modem adapter. This antenna is intended to be a media aids in strengthening the EVDO and signal reception to maximize data transfer speeds. This antenna give a gain of 16.015 from measurement dBi and 15.156 dBi based on theory. Tests using wajanbolik showed an increase in the level of modem signals a low of 4 dB in measurement with indoor conditions during the day and 19 dB at the peak of measurements with outdoor conditions at night. Results of testing also showed an increase in average data transfer rate is 42 KBps up to 269 KBps compared to measurements without wajanbolik.Keywords: Reflector, Waveguide, Wajanbolic, USB adapter, EVDO.

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A STUDY OF THE INFLUENCE OF 650 nm LASER INTERFERENCE ON VISIBLE LASER LIGHT COMMUNICATION SYSTEM

TEKNOKOM ◽

10.31943/teknokom.v4i2.66 ◽

2021 ◽

Vol 4 (2) ◽

pp. 60-65

Author(s):

Pranoto Budi Laksono

Keyword(s):

Laser Beam ◽

Communication System ◽

Communication Systems ◽

Data Transfer ◽

Laser Light ◽

Visible Light Communication ◽

Communication Process ◽

Laser Beams ◽

Laser Source ◽

Visible Laser

Visible Laser Light Communication System (VLLC) is a wireless communication system, using laser as the medium. In the data transfer process, it is possible to have optical interference where 2 laser beams coincide with one point on the reflector. Research on the effect of laser source interference has been carried out by several researchers including mitigation actions to reduce its effects. This experiment uses 2 optical distance sensors that produce a laser with a wavelength of 650 nm with a power <=4.1 mW and with the direction of the laser beam both of them cross each other. To determine the effect of the interference of two laser beams when crossing the communication process in the visible light communication system, a reflector is used which can capture the two laser beams and the reflector can be shifted gradually so that a condition can be obtained where the two laser beams meet at one point. From the measurements made at the points after the laser beam crossing, the measurements at the point where the beam crossed, and the measurements at the points before the beam crossing, it was obtained data, at the exact point where the laser beam crossed the interference occurred, which is indicated by unstable output voltage of the two lasers, so that communication at the point of intersection is disrupted. However, if outside the point of contact both before and after the point of contact, interference and communication systems will not occur.

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