A NOVEL WATER–SLUDGE INTERFACE DATA TRANSFER SYSTEM APPLYING ZIGBEE WIRELESS NETWORK

2006 ◽  
Vol 03 (04) ◽  
pp. 301-309 ◽  
Author(s):  
JINSHENG SUN ◽  
NING WANG ◽  
LIPING LIU
Keyword(s):  
Data Transfer ◽  
Data Communication ◽  
Technical Characteristic ◽  
Wireless Data ◽  
Control Center ◽  
Transfer Mode ◽  
Wireless Data Transmission ◽  
Zigbee Protocol ◽  
Communication Flow

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.

Research on the Character of a Synchronous Control System with Wireless Data Communication

2010 ◽  
Vol 455 ◽  
pp. 206-210
Author(s):  
Jun Li Liu ◽  
Yan Yan Yan ◽  
G.Q. He
Keyword(s):  
Control System ◽  
Time Delay ◽  
Data Transmission ◽  
Data Communication ◽  
Control Model ◽  
Data Loss ◽  
Wireless Data ◽  
Synchronous Control ◽  
Wireless Data Transmission ◽  
Set Up

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.

scholarly journals Contributions to the development of a methodology for determining the flow rate

2019 ◽  
Vol 112 ◽  
pp. 02008
Author(s):  
Cristian Purece ◽  
Valeriu Panaitescu ◽  
Irina Alina Chera Anghel
Keyword(s):  
Flow Rate ◽  
Operating Characteristics ◽  
Wireless Data ◽  
In Situ Tests ◽  
Small Hydropower ◽  
Actual Operating ◽  
Wireless Data Transmission ◽  
Hydropower Plants ◽  
Data Transmission System

The implementation of the requirements of the European Parliament Directive 2009/28 / EC requires efficient use of the water supply of a hydropower plants installation in order to obtain a higher amount of electricity by producing the same volume of water. In order to achieve efficient utilization of the energy of the water is necessary framing the operation of hydropower plants in the ranges of head course and the electric power so that the energy conversion is carried out in the optimum efficiency characteristic operation of the system. In order to determine as accurately the actual operating characteristics of a hydro-unit, in situ tests are required to determine the actual operating parameters of the hydro-unit. These parameters, the flow rate is the parameter that requires the most complex methodologies to determine. The paper presents a way of improvement but also a simplification of the methodology for in situ determination of the flow to small hydropower plants by using a mobile frame that has implemented a wireless data transmission system.

scholarly journals Wireless communication for control of manipulation systems

2012 ◽  
Vol 22 (1) ◽  
pp. 29-41
Author(s):  
Květoslav Belda ◽  
Václav Rychnovský ◽  
Pavel Píša
Keyword(s):  
Wireless Communication ◽  
Data Communication ◽  
Level Control ◽  
Wireless Data ◽  
Distributed Manipulation ◽  
Manipulation System ◽  
Zigbee Protocol ◽  
Control Computer ◽  
Optical Gates ◽  
Simple Feedback

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.

Spatial monitoring of the liquid phase with multiparameter sensors in industrial-scale fermenters

2017 ◽  
Vol 84 (10) ◽  
Author(s):  
Ute Enseleit ◽  
Anika Bockisch ◽  
Sandra Sachse ◽  
Erich Kielhorn ◽  
Peter Neubauer ◽  
...  
Keyword(s):  
Liquid Phase ◽  
Electrochemical Sensors ◽  
Data Transfer ◽  
Ph Value ◽  
Vertical Direction ◽  
Wireless Data ◽  
Time Resolved ◽  
Control Center ◽  
Dissolved Carbon ◽  
Sensor Probe

AbstractThis work describes the development and application of different lance-based monitoring systems coupled to an integrated multiparameter sensor probe for the spatial investigation of the liquid phase in biotechnological processes. Miniaturized electrochemical sensors are integrated into a housing, which is fixed at the head of a lance, both made of stainless steel. It can be moved inside a reactor in horizontal direction by the lance itself and in vertical direction by a flexible rope, which is connected to the sensor probe. Inserting the sensor unit directly into the liquid phase of a fermenter, e.g. in laminar processes like biogas and beer production, coupled with multiposition measurements allows to obtain space and time resolved data. The monitored parameters are the pH value, the redox potential, the temperature, and the concentration of dissolved carbon dioxide. Wireless data transfer is realized by means of radio technology with the virtual control center RAMOC (Radio Aided Monitoring) of the company innotas GmbH. Results of the

scholarly journals Secured Wireless Data Transmission using Encryption and Frequency Hopping Technique

2019 ◽  
Vol 8 (4) ◽  
pp. 11263-11268
Keyword(s):  
Spread Spectrum ◽  
Resource Sharing ◽  
Data Communication ◽  
Frequency Hopping ◽  
Data Encryption ◽  
Wireless Data ◽  
Private Key ◽  
Wireless Data Transmission ◽  
Public Keys ◽  
Data Communication Network

This work aims at developing wireless communication medium a mid two nodes by using Encryption and Frequency Hopping techniques. Data Encryption is done by using Cryptography. One of the major challenges in data communication network is security. This issue becomes more critical if there is connectivity during resource sharing. In our paper, we discuss data encryption using RSA algorithm to make certain that data is confidential. Using this algorithm, sender is allowed to generate public keys to encrypt the information and receiver is been shared with a private key using a protected database to decrypt the same. An erroneous private key will decrypt the protected data but to a different form from the actual data. The data we choose for being a key, method of distributing it are vital issues in algorithms. Hence Cryptography is used to convert the message block into a private key and Frequency Hoping is done by using the Spread Spectrum technique. Also the classification of cryptographic algorithms is outlined in this paper.

Wireless Transmission System Design of Main Shaft Hoist Load Data

2010 ◽  
Vol 439-440 ◽  
pp. 417-421
Author(s):  
Qing Dong Wang ◽  
Jian Feng Wei
Keyword(s):  
Communication Technology ◽  
Data Communication ◽  
Development Trend ◽  
Sensor Technology ◽  
Main Shaft ◽  
Wireless Data ◽  
Technology Program ◽  
Wireless Data Transmission ◽  
New Type ◽  
Mine Hoist

Wireless data communication technology under industrial environment is a new development trend in recent years, applying wireless technology to the field of data collection can solve problems and shortcomings caused by wired network, such as cabling, faulty inspection difficulties and so on. Safe operation of mine hoist matters much to the safety of mine production. As a result of the lack of detection measures hoist overload occurs from time to time, it poses a greater threat to safety in production. Combing sensor technology with emerging wireless communication technology, the wireless data transmission technology program that takes P89LPC935 MCU as cored controlling component is designed and provided in this project, constructing a new type of real-time monitoring system for main shaft hoist load.

scholarly journals Wearable Sensory Apparatus for Real-Time Feedback in Wearable Robotics

2021 ◽  
Vol 11 (23) ◽  
pp. 11487
Author(s):  
Marko Munih ◽  
Zoran Ivanić ◽  
Roman Kamnik
Keyword(s):  
Real Time ◽  
Packet Loss ◽  
Data Transfer ◽  
Wireless Body Area Network ◽  
Area Network ◽  
Wireless Data ◽  
Wearable Robots ◽  
Sensory Apparatus ◽  
Wireless Data Transmission ◽  
Master Device

We describe the Wearable Sensory Apparatus (WSA) System, which has been implemented and verified in accordance with the relevant standards. It comprises the Inertial Measurement Units (IMUs), real-time wireless data transmission over Ultrawideband (UWB), a Master Unit and several IMU dongles forming the Wireless Body Area Network (WBAN). The WSA is designed for, but is not restricted to, wearable robots. The paper focuses on the topology of the communication network, the WSA hardware, and the organization of the WSA firmware. The experimental evaluation of the WSA incorporates the confirmation of the timing using the supply current WSA profile, measurements related to determining the less error prone position of the master device on the backpack, measurements of the quality of the data transfer in a real environment scenario, measurements in the presence of other microwave signals, and an example of raw IMU signals during human walking. Placement of the master device on the top of the backpack was found to be less error prone, with less than 0.02% packet loss for all the IMU devices placed on different body segments. The packet loss did not change significantly in public buildings or on the street. There was no impact of Wi-Fi bands on the WSA data transfer. The WSA hardware and firmware passed conformance testing in a certified lab. Most importantly, the WSA performed reliably in the laboratory and in clinical tests with exoskeletons and prostheses.

Design of Wireless Monitoring Environment System Based on AVR SCM

2013 ◽  
Vol 744 ◽  
pp. 532-535
Author(s):  
Chun Wu Wang ◽  
Chun Ling Liu ◽  
Zheng Kun Qin
Keyword(s):  
Radio Frequency Identification ◽  
High Frequency ◽  
Data Communication ◽  
Wireless Transmission ◽  
Wireless Data ◽  
High Frequency Signal ◽  
Control Center ◽  
Wireless Monitoring ◽  
Communication Function ◽  
Frequency Identification

The system had achieved a wireless data communication function using AVR SCM as a control center and basing on radio frequency identification technology. The transmitting terminal of system produces a high frequency signal through capacitance connecting three point type oscillator. And the encoded signal will be transmitted after high-frequency carrier modulated. While after the receiving terminal receive the signal through antenna, and the signal after a series processes including amplification, detection, rectification, voltage comparison will be processed by SCM. The system includes temperature humidity sensor, clock generator chip, photosensitive element, could detect the surrounding environment signal and wireless transmit. The paper elaborates the soft and the hardware realizing specific course of the wireless transmission system. It has an important meaning for the wireless transmission technique.

Application of Wireless Data Transmission Technique in Drying Equipment

2011 ◽  
Vol 422 ◽  
pp. 262-267
Author(s):  
Zhi Wei Mai ◽  
Chang You Li ◽  
Ye Zhang ◽  
Feng Ying Xu ◽  
Jian Min Li
Keyword(s):  
Data Transmission ◽  
Detection System ◽  
Data Communication ◽  
Online Detection ◽  
Wireless Data ◽  
Wireless Data Transmission ◽  
Detection Technology ◽  
Grain Moisture ◽  
Grain Drying ◽  
And Control

The application of online detection technology for grain moisture is one of the most effective ways to improve the quality of grain drying. The online detection system for grain moisture consists of three parts: online remote module of ingoing grain moisture (charging), online remote module of outgoing grain moisture (discharging), and the host controller. It adopts JZ873 wireless transparent transmission module to realize the wireless data communication among various modules, and to formulate the communication drive. In practice, this system has characteristics such as flexible use, reliable data transmission, and it is more suitable for those testing and control conditions where it is inconvenient to wiring.

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