scholarly journals Toxic and Non-Toxic Gas Detection System for Septic Tank

2021 ◽  
pp. 26-33
Keyword(s):  
Detection System ◽  
Cost Effective ◽  
Smartphone Application ◽  
Gas Detection ◽  
Septic Tank ◽  
Prototype System ◽  
Concentration Data ◽  
Gas Concentration ◽  
Septic Tanks ◽  
Toxic Gas

In septic tanks, various types of toxic and non-toxic gases are found such as Carbon-di-Oxide (CO2), Carbon-mono-Oxide (CO), Hydrogen Sulfide (H2S), Methane (CH4), and so on. In this paper, a toxic gas detection system for a septic tank has been presented, where MQ-135, MQ-136, MQ-4, and MQ-7 sensors are employed for combined detection of CO2, H2S, CH4, and CO gases respectively. With the change of concentration of gases, the sensor resistance changes, and accordingly an analog voltage is produced across the sensor. The analog voltages from the sensors are fed to a microcontroller, which reads the values and converts the values into gas concentration in PPM (parts per million). The PPM values for all four gases are displayed on an LCD, where two levels are assigned as “Safe” and “Danger” based on the concentration of each gas. “Safe” status means the concentration of gas is not harmful and “Danger” status means the concentration of gas is harmful. A buzzer will give an alarm when the gas concentration status becomes “Danger”. Furthermore, a Bluetooth device is interfaced with the microcontroller for transferring the gas concentration data to a smartphone. For the Smartphone, application software has been developed to monitor the concentration of each toxic gas. The prototype system has been developed and tested which gives satisfactory results. It is supposed to be a helpful and cost-effective system for cleaners working in septic tanks.

scholarly journals Prototype System for the Detection of Volatile Hydrocarbons in Water

Proceedings ◽  
2018 ◽  
Vol 2 (13) ◽  
pp. 734
Author(s):  
Alexey A. Vasiliev ◽  
Mikhail Yu. Yablokov ◽  
Andrey V. Sokolov
Keyword(s):  
Oil And Gas ◽  
Detection System ◽  
Prototype System ◽  
Dissolved Gas ◽  
Dissolved Methane ◽  
Gas Concentration ◽  
Volatile Hydrocarbons ◽  
Oil And Gas Fields ◽  
Gas Fields ◽  
System Prototype

Detection of dissolved methane and volatile hydrocarbons in water is a problem met inleakage localization during exploitation of underwater pipelines, oil and oil product spill over watersurface, geological exploration work for the localization of oil and gas fields under water, etc. Thisproblem can be solved by the application of detection system based on tubular selective membranepermeable for volatile organics and impenetrable for liquid water. Carrier gas (air) flowing throughthis tube is saturated with dissolved gas and then gas concentration is measured usingsemiconductor or other gas sensor. The system prototype was tested under laboratory conditionsand demonstrated low limit of gas detection (~20 ppb by mass of dissolved methane in water) andshort response time (~10 s).

Drainage Toxic Gas Detection System Using IoT

2020 ◽  
pp. 161-167
Author(s):  
Swapnil Manikrao Alure ◽  
Rahul Vishnupant Tonpe ◽  
Aniket Dhanaraj Jadhav ◽  
Supriya Tryambakeshwar Sambare ◽  
Jayshri D. Pagare
Keyword(s):  
Detection System ◽  
Gas Detection ◽  
Toxic Gas

Intelligent Protection System Against Vehicles’ Carbon Monoxide Gas Leakage by Using Arduino and Global System for Mobile Model

2020 ◽  
Vol 17 (4) ◽  
pp. 1715-1719
Author(s):  
Muna Rashid Al Eissaei ◽  
Feras N. Hasoon ◽  
Suresh Manic
Keyword(s):  
Carbon Monoxide ◽  
Gas Sensor ◽  
Detection System ◽  
Gas Detection ◽  
Significant Problem ◽  
Leakage Detection ◽  
Global System ◽  
Gas Concentration ◽  
Safety Standards ◽  
Gas Leakage

Gas leakage is a significant problem in industries, residential premises and gas powered vehicles. Carbon Monoxide is one type of harmful gas that generates out from vehicle’s AC when it is in ON mode, which can cause suffocation or death for all the passengers within less than hour that according to the science researchers. One of the proposed methods to upgrade safety standards and prevent accidents related to gas leakage is to install gas leakage detection inside the vehicles. This paper discusses the design of gas detection system to detect the presence of a dangerous Carbon Monoxide (Co) leak inside the cars using the MQ-7 gas sensor, and an alert is provided to two users by sending SMS to the programmed mobile numbers. Also, this system decreases the gas concentration by opening the car window using a relay board and motor. If the Co (MQ-7) sensor senses any gas leakage from the AC output of this sensor goes low, and the Arduino monitors this low signal, and it will identify the gas leakage.

scholarly journals Analysis and Detection of a Target Gas System Based on TDLAS & LabVIEW

2019 ◽  
Vol 9 (3) ◽  
pp. 4196-4199 ◽  
Author(s):  
F. Alorifi ◽  
S. M. A. Ghaly ◽  
M. Y. Shalaby ◽  
M. A. Ali ◽  
M. O. Khan
Keyword(s):  
Absorption Spectrum ◽  
Second Harmonic ◽  
Detection System ◽  
Infrared Absorption Spectrum ◽  
Gas Absorption ◽  
Tunable Diode Laser ◽  
Gas Detection ◽  
Measured Signal ◽  
Gas Concentration ◽  
Detection Techniques

This paper introduces detection techniques of target gas concentration based on infrared absorption spectrum method and the simulation of the gas detection system using LabVIEW. In this work, the harmonic detection is performed by wavelength modulation technique with a related frequency signal to cover the measured signal and get the gas absorption coefficient that can be analysed to give a gas concentration. A series of simulations are carried out to scan weak absorption lines and extract the second harmonic curve of the absorption spectrum of the target gas. The absorption and second harmonic curves are acquired by changing the parameters of the target gas concentration and line width. This work claims to be a contribution to the study and the comprehension of gas detection system based on tunable diode laser absorption spectroscopy and can serve as a basis for practical data acquisition.

706 Extracting laser signals from data using a toxic gas detection system

2013 ◽  
Vol 2013 (0) ◽  
pp. 194-195
Author(s):  
Masaki Inagaki ◽  
yuki Tomida ◽  
Takuya Kawahara ◽  
Satoshi Wada
Keyword(s):  
Detection System ◽  
Gas Detection ◽  
Toxic Gas

scholarly journals A V-SLAM Guided and Portable System for Photogrammetric Applications

2021 ◽  
Vol 13 (12) ◽  
pp. 2351
Author(s):  
Alessandro Torresani ◽  
Fabio Menna ◽  
Roberto Battisti ◽  
Fabio Remondino
Keyword(s):  
Low Cost ◽  
Cost Effective ◽  
Motion Blur ◽  
Guidance System ◽  
Prototype System ◽  
Active Sensors ◽  
Localization And Mapping ◽  
Acquisition Speed ◽  
Mobile Mapping System ◽  
Slam Algorithm

Mobile and handheld mapping systems are becoming widely used nowadays as fast and cost-effective data acquisition systems for 3D reconstruction purposes. While most of the research and commercial systems are based on active sensors, solutions employing only cameras and photogrammetry are attracting more and more interest due to their significantly minor costs, size and power consumption. In this work we propose an ARM-based, low-cost and lightweight stereo vision mobile mapping system based on a Visual Simultaneous Localization And Mapping (V-SLAM) algorithm. The prototype system, named GuPho (Guided Photogrammetric System) also integrates an in-house guidance system which enables optimized image acquisitions, robust management of the cameras and feedback on positioning and acquisition speed. The presented results show the effectiveness of the developed prototype in mapping large scenarios, enabling motion blur prevention, robust camera exposure control and achieving accurate 3D results.

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