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Salman Taha (MSCS14006)

 

 

Current state of the art:

Presently there are many air quality monitoring system out in the global market, following is the list of some of those equipment:

 

  • Air quality monitoring equipment by aeroqual

  • ELM - multi sensor sensor air quality monitoring system

  • Smartphones enable sensors

  • Electric nose sensor

  • Air quality eggs

  • Smart watches with air pollutant monitoring sensors 

 All of those equipment are costly and may not be suitable for local market.

 

Context of the device usage:

The device should be flexible enough to work both indoors and outdoors. hence weather resistance is the thing that we want. The device should be a low cost one since individuals/single families will be using it. it should also be portable.

 

Related Works/Technology:

The part of our solution is to have a centralized system for gathering statistics transmitted by GSM module. Many systems have already been developed that uses the same proposed technology in a similar fashion, those systems can be reused in our project too.

 

User Needs:

 

Obvious: 

Users need the system to be,

 

  • Convenient to use

  • Economical to afford

  • Portable

Hidden:

 

The hidden desirable needs are,

 

  • Safe device/system

  • Good Maintainability

  • Accurate Reading of the presence of pollutants

Hamid Ali (MSCS14012)

 

Current state of the art:

 

European Cooperation for Science and Technology is doing a project SNAQ-Heathrow using state-of-the-art air quality sensors. There are using electrochemical, optical and size speciated particulate sensors. The Sensor Network for Air Quality - Heathrow can transmit its position and data in near-real time.Aeroqual are producing next generation air quality sensors

Real time Electrochemical and optical Air quality Sensors are available.

 

Usage:

 

It should primarily be used indoors as indoor air pollution is a bigger concern in developing countries. The scope can be extended to include outdoors. It would be designed in such a way that it collects the data discretly and transmits the information. Once it is deployed it should work automatically. It should be used year round. The reason is that due to wrong heating practices IAP may increase in winter season. It would be owned by a group. It should be portable so that it can take samples from different places.

 

Similar Projects:

 

Currently this is being done in US and other developed countries . But they are using it to spread awareness about the outdoor pollution. (Projects like Air-Quality Egg and Smart Citizen)

A project related to outdoor air pollution was done by Dr. Tauseef (UET) in Pakistan. But they didn't design it to share air pollution statistics with the public. 

 

User Needs:

Portability(Needs to be portable to cater to diversified data sampling)

Reliance(has to be used in high pollution areas)

Low power(should be able to operate in remote areas)

Convenience (target market is not familiar with technology)

Class Assignment (10.12.14)

 

Following is the individual assignments of the team members.

Tahir Ahmad (MSCS14042)

 

 

The current state of the art:

 

 There are many technologies exists that does the same thing  like in Metal Oxide Gas Sensor Technology Enable VOC ( volatile organic compounds) Measurement. There are also state of the art electrochemical and optical air quality sensors available.But these are complex and costly.

 

User needs and requirements:

This project is specially design for rural areas.People can not afford costly projects.so we want to make low price and small size that can be fullfill all needs and requirments of user.

 

The context in which the device will be used:

 The device can be used for both  indoor and as well as outdoor and and can be used by women .it can  work  year. It will be owned by a group.It is  a portable device.

 

  Related technologies: 

 Most commonly used methods for automatically monitoring air pollutants such as follows.

  •  A Birdi is an  elegant device which is used Smart Air Monitor.With help of this  we monitor the  air quality of our home, tracking  dust,soot and other health dangers plus warn us about emergencies like fire and carbon monoxide.    

  • Sulfur dioxide (SO2): Measured by the fluorescent signal generated by exciting SO2 with UV light.

  • Nitrogen oxides (NOx): Measured by the chemiluminescent reactions between NOx and O3.

  • Ozone (O3): Measured by an ultraviolet absorption analyzer which determines the ozone concentration by the attenuation of 254 nm UV light along a single fixed path cell.

  • Carbon monoxide (CO): In urban air pollution studies, a non- dispersive infrared photometer utilizing gas filter correlation technology and state-of-the-art optical and electronic technology is used to measure low concentrations of CO accurately and reliably.

  • Hydrocarbons (Methane and NMHC): Measured using a flame ionization detector (FID). However, problems in power supplies may interrupt these continuous measurements.

  • Volatile Organic compounds (VOC): Measured by gas chromatography and photo-ionization detector (PID).

Muneeb Sajjad (MSCS14053)

 

 

  • The current state of the art

    • What we would like to achieve is to measure the air quality through some sensors and collected all the data and user that data to enforce government agencies to take action in controlling Air pollution, similar kind of thing is done by an open source community start as crowd-funded project it does the same things measure the Nitrogen Dioxide, Carbon Monoxide in the air as well as temperature and humidity.

  • The context in which the device will be used

    • The device can be used indoor as well as outdoor and can be used by women and men both it suppose to work in all seasons and can be owned by a group as well as individuals and it will be a portable device.

 

  • Related technologies

    • Air-Quality-Egg is a device that performs the similar task, it uses sensors to check the air quality and send it to a central web portal which is accessible to the general public to get to know about the environmental condition around them

  • Needs

    •  Air Quality indicator

    •  Easy to maintain 

    • Cost effective

    • Mobility 

  • Hidden needs

    • Consider Air population a serious public health issue

    • Enforce regulatory authorities to takes action based on actual data of pollutant in the air

Muhammad Osama (MSCS14057)

 

Current state of the art:

There are several companies, NGOs and governmental organisations which are working on reducing, if not eliminating, indoor air pollution. A worth mentioning  company is Air Quality Egg. It has egg-shaped sensors which can be placed anywhere. Moreover, data can be collected by anyone. Mainly it provides readings of nitrogen oxide and carbon monoxide emissions. Data is sensed and transmitted to the base station from where it is stored in a database. A service of tweets and SMS alerts are also provided.

 

 

User needs and requirements:

 

  • It should be small in size. We want it to be portable so a big size will not be convenient for us.
  • It should be low-cost and affordable for all. We are targeting the very low strata of the community, so it really needs to be cheap.
  • It should be in perfect working condition and fast and efficient.
  • It should be low-power. 

 

Context:

 

  • Our main focus is to use it for indoor air pollution. So, foremost, it will definitely be used as an indoor equipment. However, upon completion of this phase, we can always expand it to cover outdoor air pollution as well. 
  • As far as users are concerned, the women will have to carry out their cooking chores near it for accurate measurement. As far data analysis and data distribution is concerned, both men and women can do the job. 
  • It has to be working throughout the year. 
  • It can be owned by individuals, group of individuals, organisations, institutions etc. 
  • Portability is a must.

 

Related technologies:

There are several technologies and equipment which perform similar and/or exact tasks. For example,Aeroqual has a series or portable sensors which measure indoor air pollution. Data is logged on a centralized hub and it is compatible with Windows. 

Libelium provides similar several sensing options. Particularly for air pollution monitoring, Waspmote is used.

CONNECT​ WITH US:​​

itu2014iap@gmail.com
Mahool- Air Pollution Sensing and Data Acquisition

 

 

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