scholarly journals Detection and Early Warning of Toxic Gases Based on Semiconductor Wireless Sensors

2021 ◽  
Vol 2021 ◽  
pp. 1-11
Author(s):  
Lin Feng ◽  
Jian Wang ◽  
Ye Chen ◽  
Chao Ding
Keyword(s):  
Quantitative Analysis ◽  
Compressed Sensing ◽  
Gas Sensor ◽  
Monitoring System ◽  
Hydrogen Fluoride ◽  
Output Signal ◽  
Simulation Experiment ◽  
Wireless Sensor ◽  
Sensor Output ◽  
Wireless Monitoring

This paper studies a semiconductor wireless sensor system, which is composed of a semiconductor wireless sensor sampling circuit, gas-sensitive signal alarm and wireless transmitting circuit, and wireless radio frequency signal receiving circuit. The system is suitable for wireless monitoring of hydrogen fluoride gas in chemical plants. The hydrogen fluoride gas sensor is designed, integrated, and classified according to the polarity and size of the sensor output signal. The signal processing circuit of the sensor output signal is made with an integrated design. This paper developed a simulation experimental system for the wireless monitoring network characteristics of toxic hydrogen fluoride gas and completed the monitoring system’s sensor characteristic calibration and accuracy comparison simulation experiment, the communication distance test experiment of the communication system, and the research experiment on the influence of environmental humidity on the sensor characteristics of the monitoring system. In terms of software, the workflow of network nodes has been optimized. Since the structure of the wireless sensor network is not exactly the same in different application fields, the toxic gas monitoring system based on wireless sensor networks must focus on extending the network’s life cycle. Without affecting the normal operation of the system, distributed compressed sensing can greatly extend the service life of the system. Therefore, this subject combines the compressed sensing technology developed in recent years with the air monitoring system for the processing of transmission data, in order to achieve the purpose of further reducing the energy consumption of the system. The simulation experiment demonstrated that the lmF neural network combined with gas sensor array technology can realize qualitative identification, quantitative analysis of single gas, and quantitative analysis of mixed combustible gas. The research work in this area also provides a new way to further combine the miniature hydrogen fluoride gas sensor unit with sensor technology, integrate the hydrogen fluoride gas sensor unit and the electronic tag, and expand the wireless application of the gas sensor.

Ammeter Interface Device and Monitoring System Based on Wireless Sensor Networks

2011 ◽  
Vol 219-220 ◽  
pp. 900-903
Author(s):  
Min Sheng Tan ◽  
Hai Tao Tian ◽  
Qiong Chen
Keyword(s):  
Wireless Sensor Networks ◽  
Sensor Networks ◽  
Real Time ◽  
Monitoring System ◽  
Wireless Sensor ◽  
Real Time Monitoring ◽  
Wireless Monitoring ◽  
Community Monitoring ◽  
Monitoring Center ◽  
Interface Device

A kind of wireless monitoring interface device based on wireless sensor networks for ammeters was proposed. Ammeters connected by UART or pulse interface to get ammeters’ real-time data. Then, an ammeter monitoring system based on wireless sensor networks (AMSBW) was designed. The system consist building-WSN and community wireless monitoring center. And user’s ammeters, ammeter wireless monitoring interface devices and building-sink nodes were included in the building-WSN; the center sink node and monitoring host were contained in community monitoring center. The functions of real-time monitoring, remote control and preventing electricity-stolen were designed in the AMSBW which had simple installation and configuration. Then a software system to test the AMSBW was exploited. At last, system’s tests results show that it could effectively achieve the goal of real-time monitoring and control ammeter.

Application Design for Oilfield Monitoring System Based on ZigBee Wireless Network Technology

2011 ◽  
Vol 135-136 ◽  
pp. 294-299
Author(s):  
Kai Yuan Meng ◽  
Peng Yang ◽  
Qing Nian Cao
Keyword(s):  
Wireless Sensor Networks ◽  
Monitoring System ◽  
Communication Protocol ◽  
Wireless Transmission ◽  
Wireless Sensor ◽  
Network Technology ◽  
System Framework ◽  
Wireless Monitoring ◽  
Fast Network ◽  
Software And Hardware

By analyzing the oilfield wireless monitoring system, the paper puts forward an oilfield monitoring system framework based on ZigBee wireless sensor networks on basic of studying ZigBee standard communication protocol. Software and hardware of data acquisition and transmission are designed in this system. The fast network and wireless transmission are realized.

Design of Granary Parameter Wireless Monitoring System Based on Internet

2014 ◽  
Vol 563 ◽  
pp. 167-171
Author(s):  
Yao Hua Guo
Keyword(s):  
Monitoring System ◽  
Software Design ◽  
Data Transmission ◽  
Humidity Sensor ◽  
Wireless Sensor ◽  
Low Power Consumption ◽  
Wireless Monitoring ◽  
Embedded Gateway ◽  
Hardware Circuit ◽  
The Web

A granary parameter wireless monitoring system based on Internet is introduced, in which the wireless sensor network is built by using the temperature and humidity sensor and the CC2430 wireless chip, the embedded gateway and the Web server are built by using the embedded ARM chip S3C2410, the system overall structure and hardware circuit and software design are detailed described. In the system, the remote wireless monitoring of grain parameters is realized, users can perform data transmission and monitoring by Internet. The whole system is stable, reliable, low power consumption and it can meet the measurement requirements.

Design on Environment Monitoring System for Greenhouse Based on Wireless Sensor Network

2010 ◽  
Vol 108-111 ◽  
pp. 145-150 ◽  
Author(s):  
Guo Fang Li ◽  
Sheng Tao Liu ◽  
Li Dong Chen ◽  
Yan Liu ◽  
Chang Chun Bao ◽  
...  
Keyword(s):  
Wireless Sensor Network ◽  
Data Acquisition ◽  
Sensor Network ◽  
Monitoring System ◽  
Low Cost ◽  
Wireless Sensor ◽  
Time Data ◽  
Management Software ◽  
Wireless Monitoring ◽  
Information Monitoring

The information monitoring points for greenhouse environment were scattered, so a wireless sensor network with star-type network topology was designed and the wireless monitoring system for greenhouse was developed. By employing CC2430 chip as the core hardware, WSN implemented real-time data acquisition and remote wireless transmission. The field data was transmitted to the monitoring host through RS-232 interface. The node management software was developed based C language and the data management software was developed using LabVIEW 8.6. The system was featured by low cost and simply installation. The primary experiments show that the system performance is stable and can meet the design requirement of remote data acquisition.

Cold Rolling Strip Off-Tracking Online Monitoring Method via Wireless Sensor Network with Self-Powered Nodes

2013 ◽  
Vol 572 ◽  
pp. 459-462
Author(s):  
Jian Hong Yang ◽  
Min Li ◽  
Ke Hua Huang
Keyword(s):  
Wireless Sensor Network ◽  
Cold Rolling ◽  
Sensor Network ◽  
Monitoring System ◽  
Online Monitoring ◽  
Wireless Sensor ◽  
Monitoring Method ◽  
Wireless Monitoring ◽  
Rolling Strip ◽  
Self Powered

The problem of off-tracking in looper area of a cold rolling strip production line is usually unavoidable especially when the looper carriage is located far away from the strip deviation detection device. The looper carriage itself is the best place for installing the detecting sensor. However, the wired monitoring system is not suitable because the carriage is moving and the power of common wireless monitoring system has to be recharged manually and frequently due to a high power consumption of the detecting sensor. A novel method of strip off-tracking online monitoring method via wireless sensor network with self-powered nodes is proposed, which is helpful to overcome the difficulties of the conventional methods. The energy of the wireless monitoring node was supplied by an electromagnetic induction generator driven by a devised transmission mechanism. An intelligent power-recharging control module including a single-ended primary-inductor converter was designed to charge the lead acid battery using a floating charging strategy. A selective space diversity scheme for receiving node in the wireless sensor network was put forward to resist path loss and fading in industrial environment. Theoretical analysis and experiment results have proved the feasibility of the proposed method.

scholarly journals Low-Cost Cloud-Enabled Wireless Monitoring System for Linear Fresnel Solar Plants

2020 ◽  
Vol 2 (1) ◽  
pp. 6
Author(s):  
Rowida Meligy ◽  
Peio Lopez-Iturri ◽  
José Javier Astrain ◽  
Imanol Picallo ◽  
Hicham Klaina ◽  
...  
Keyword(s):  
Monitoring System ◽  
Medical Center ◽  
Low Cost ◽  
Cost Effective ◽  
Wireless Sensor ◽  
Heat Transfer Fluid ◽  
Wireless Monitoring ◽  
Collector Temperature ◽  
Linear Fresnel Reflector ◽  
The University

This paper presents the design of a cost-effective online wireless monitoring system for two linear Fresnel reflector (LFR) solar plants located in two different countries. The first LFR plant is installed in the SEKEM medical center near Belbis city, Egypt, while the second is installed in the campus of the University of Palermo, Italy. The proposed system is a standalone system that reduces the interaction of labor as it offers online wireless monitoring for important parameters of the LFR such as solar irradiance, ambient temperature, outlet and inlet collector temperature and heat transfer fluid flow. For that purpose, a wireless sensor network (WSN) based on Arduino Mega boards coupled with XBee modules are used. The ZigBee XBee modules operate at 2.4 GHz, which have the advantages of being low cost and relatively low power consumption. The wireless nodes are supplied by solar paneled power banks, and send the data to a cloud in order to monitor both LFR plants remotely. The proposed system has been implemented and tested successfully before the future deployment on the LFR plants.

Application of Wireless Sensor Networks on Power Plants Monitoring

2013 ◽  
Vol 321-324 ◽  
pp. 762-766 ◽  
Author(s):  
Shou Zhi Huang ◽  
Xue Zeng Zhao
Keyword(s):  
Wireless Sensor Networks ◽  
Sensor Networks ◽  
Monitoring System ◽  
Power Plants ◽  
Electrical Current ◽  
Current Data ◽  
Mesh Network ◽  
Wireless Sensor ◽  
Wireless Monitoring ◽  
Labview Software

The traditional wired monitoring system for power plants is complex and hard to detect when the system faces some problems. The idea of monitoring the environment of power plants wirelessly is proposed to solve this problem. The feasibility of applying wireless sensor networks to power plants monitoring is analyzed. Then a wireless monitoring system based on XBee modules which are using ZigBee technology is designed. The temperature and electrical current data are gathered by sensors attached to the XBee modules and transferred to the PC controller through mesh network. An interface between coordinator and controller is designed utilized LABVIEW software to read data and send commands. In the end, a three nodes demo system is built up to testify the design.

Design for Multi-Parameter Wireless Sensor Network Monitoring System Based on Zigbee

2011 ◽  
Vol 464 ◽  
pp. 90-94 ◽  
Author(s):  
Fen Gui ◽  
Xing Qiao Liu
Keyword(s):  
Wireless Sensor Network ◽  
Sensor Network ◽  
Monitoring System ◽  
Simple Structure ◽  
Water Environment ◽  
Wireless Sensor ◽  
Wireless Monitoring ◽  
New Type ◽  
Aquaculture Water ◽  
Complex Measuring

The water monitoring environment has the characteristics of more measuring points, longer measuring time, more complex measuring situation and so on, in order to solve the problem of high cost and routing difficulty during monitoring, a new type of multi-parameter wireless monitoring system based on ZigBee is designed. This system realizes the multi-parameter collection, transmission and display, such as dissolved oxygen, pH and temperature. The fast and accurate transmission of the data between sensor node and coordinate is achieved through wireless sensor network. Then the system realized the real-time remote monitoring. Because of its simple structure, fast data transmission, easily function extended, and high self-organization and self-recovery ability, the system is suitable for many fields such as industry aquaculture, water environment, intelligent greenhouse and other domains.

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