Going digital on low-cost mobile phones in Bangladesh

2011 ◽  
Author(s):  
Christopher S. Walsh ◽  
Tom Power
Keyword(s):  
Mobile Phones ◽  
Low Cost

A Festival-Wide Social Network Using 2D Barcodes, Mobile Phones and Situated Displays

2011 ◽  
Vol 3 (3) ◽  
pp. 14-30 ◽  
Author(s):  
Jakob Eg Larsen ◽  
Arkadiusz Stopczynski
Keyword(s):  
Social Network ◽  
Mobile Phones ◽  
Low Cost ◽  
The Novel ◽  
Client Application ◽  
Mobile Client ◽  
Music Festival ◽  
Network Applications ◽  
Network Interaction ◽  
Novel Approach

This paper reports on the authors’ experiences with an exploratory prototype festival-wide social network. Unique 2D barcodes were applied to wristbands and mobile phones to uniquely identify the festival participants at the CO2PENHAGEN music festival in Denmark. The authors describe experiences from initial use of a set of social network applications involving participant profiles, a microblog and images shared on situated displays, and competitions created for the festival. The pilot study included 73 participants, each creating a unique profile. The novel approach had potential to enable anyone at the festival to participate in the festival-wide social network, as participants did not need any special hardware or mobile client application to be involved. The 2D barcodes was found to be a feasible low-cost approach for unique participant identification and social network interaction. Implications for the design of future systems of this nature are discussed.

Bluetooth Hands Free System for Fixed Telephone Research

2012 ◽  
Vol 198-199 ◽  
pp. 1603-1608
Author(s):  
Qing Hua Shang ◽  
Ping Liu
Keyword(s):  
Power Consumption ◽  
Low Power ◽  
Mobile Phones ◽  
Daily Life ◽  
Low Cost ◽  
Low Power Consumption ◽  
Wireless Technology ◽  
Free System ◽  
Wireless Technologies ◽  
The Stability

Wireless technology has walked into the People's Daily life, Bluetooth technology comes to the fore in so many wireless technologies with its low power consumption, low cost and other characteristics. Bluetooth technology is used widely, we can see it in mobile phones or in our cars, it seems that Bluetooth technology has penetrated into every aspect of our lives. Even so, the combination of Bluetooth technology and fixed telephone still has a very big development space. If the stability of the fixed telephone combined with the flexible of Bluetooth technology, it will give the life of people a lot of convenience. This paper will introduces the Bluetooth hands free system for fixed telephone, it is such a product that it will make Bluetooth technology and common fixed phone combined, and make it a reality that people can use common Bluetooth headset to answer or call a fixed telephone.

scholarly journals Smart Mobile Phone Groups - Based Design and Implementation of Vehicle Accident Self-rescue System

2016 ◽  
Vol 3 (1) ◽  
pp. 1
Author(s):  
Long Zhao ◽  
Jianwei You ◽  
Nianmin Yao
Keyword(s):  
Mobile Phone ◽  
Mobile Phones ◽  
Low Cost ◽  
Threshold Value ◽  
Prototype System ◽  
Vehicle Collision ◽  
Communication Module ◽  
Rescue System ◽  
Smart Mobile Phone ◽  
Smart Mobile

<p class="p1"><span class="s1">Considering the deficiency that the existing automobile accident self-rescue system requires to assemble the specific sensor, GPS and communication module, the author designed a vehicle collision or  crash detection and accident self-rescue system based on the smart mobile phone groups. Taking the acceleration signals of physical moments from the smart mobile phones in the accidents car as the input samples and the assembly of acceleration data as the calculating thresholds, the system can not only improve the accuracy rating of the judgments about the accidents, but can also reduce the unusable distress signals due to the damages to individual vehicle-borne device or mobile phone in severe accidents. When the signals exceed the threshold value, the system can draw support from the functions of video, GPS positioning and 3G networking in the mobile phones automatically to call for help from the rescue center. Meanwhile, a prototype system has been implemented on Android platform. The results of the experiments indicate that the system possesses the advantages of high accuracy of collision or crash recognition, low energy consumption and low cost.</span></p>

scholarly journals Using mobile phones as acoustic sensors for high-throughput mosquito surveillance

2017 ◽  
Author(s):  
Haripriya Mukundarajan ◽  
Felix J H Hol ◽  
Erica A Castillo ◽  
Cooper Newby ◽  
Manu Prakash
Keyword(s):  
Mobile Phones ◽  
Large Scale ◽  
Low Cost ◽  
Mosquito Species ◽  
Mobile Network ◽  
Control Measures ◽  
New Paradigm ◽  
Mosquito Surveillance ◽  
Wide Range ◽  
Species Specific

AbstractThe direct monitoring of mosquito populations in field settings is a crucial input for shaping appropriate and timely control measures for mosquito-borne diseases. Here, we demonstrate that commercially available mobile phones are a powerful tool for acoustically mapping mosquito species distributions worldwide. We show that even low-cost mobile phones with very basic functionality are capable of sensitively acquiring acoustic data on species-specific mosquito wingbeat sounds, while simultaneously recording the time and location of the human-mosquito encounter. We survey a wide range of medically important mosquito species, to quantitatively demonstrate how acoustic recordings supported by spatio-temporal metadata enable rapid, non-invasive species identification. As proof-of-concept, we carry out field demonstrations where minimally-trained users map local mosquitoes using their personal phones. Thus, we establish a new paradigm for mosquito surveillance that takes advantage of the existing global mobile network infrastructure, to enable continuous and large-scale data acquisition in resource-constrained areas.

scholarly journals Smartphones Based Mobile Mapping Systems

2014 ◽  
Vol XL-5 ◽  
pp. 29-34 ◽  
Author(s):  
A. Al-Hamad ◽  
N. El-Sheimy
Keyword(s):  
Mobile Phones ◽  
Spatial Data ◽  
Inertial Sensors ◽  
Low Cost ◽  
Micro Electro Mechanical System ◽  
Mobile Mapping ◽  
Moving Platforms ◽  
Gis Applications ◽  
Mobile Mapping Systems ◽  
Mapping Systems

The past 20 years have witnessed an explosive growth in the demand for geo-spatial data. This demand has numerous sources and takes many forms; however, the net effect is an ever-increasing thirst for data that is more accurate, has higher density, is produced more rapidly, and is acquired less expensively. For mapping and Geographic Information Systems (GIS) projects, this has been achieved through the major development of Mobile Mapping Systems (MMS). MMS integrate various navigation and remote sensing technologies which allow mapping from moving platforms (e.g. cars, airplanes, boats, etc.) to obtain the 3D coordinates of the points of interest. Such systems obtain accuracies that are suitable for all but the most demanding mapping and engineering applications. However, this accuracy doesn't come cheaply. As a consequence of the platform and navigation and mapping technologies used, even an "inexpensive" system costs well over 200 000 USD. Today's mobile phones are getting ever more sophisticated. Phone makers are determined to reduce the gap between computers and mobile phones. Smartphones, in addition to becoming status symbols, are increasingly being equipped with extended Global Positioning System (GPS) capabilities, Micro Electro Mechanical System (MEMS) inertial sensors, extremely powerful computing power and very high resolution cameras. Using all of these components, smartphones have the potential to replace the traditional land MMS and portable GPS/GIS equipment. This paper introduces an innovative application of smartphones as a very low cost portable MMS for mapping and GIS applications.

scholarly journals Who do phone surveys miss, and how to reduce exclusion: recommendations from phone surveys in nine Indian states

2021 ◽  
Vol 6 (Suppl 5) ◽  
pp. e005610
Author(s):  
Karan Nagpal ◽  
Mitali Roy Mathur ◽  
Abhilash Biswas ◽  
Andrew Fraker
Keyword(s):  
Mobile Phone ◽  
Mobile Phones ◽  
Low Cost ◽  
Primary Data ◽  
Computer Assisted ◽  
Indian States ◽  
Population Statistics ◽  
Telephone Interviews ◽  
Response Errors

Computer-assisted telephone interviews (CATI) through mobile phones are a low-cost, rapid and safe way to collect data. However, decisions for how such mobile phone surveys are designed and implemented, and their data analysed, can have implications for the sample reached, and in turn affect the generalisability of sample estimates. In this practice paper, we propose a framework for extending the use of CATI–mobile phone surveys in India, which can be applied broadly to future surveys conducted using this method. Across the stages of design, implementation and analysis, we outline challenges in ensuring that the data collected through such surveys are representative and provide recommendations for reducing non-coverage and non-response errors, thereby enabling practitioners in India to use CATI–mobile phone surveys to estimate population statistics with lower bias. We support our analysis by drawing on primary data that we collected in five mobile phone surveys across nine Indian states in 2020. Our recommendations can help practitioners in India improve the representativeness of data collected through mobile phone surveys and generate more accurate estimates.

scholarly journals TIME TRAVEL ESTIMATIONS USING MAC ADDRESSES OF BUS PASSENGERS: A POINT TO PATH-QGIS ANALYSIS

2018 ◽  
Vol 5 (2) ◽  
pp. 263 ◽  
Author(s):  
Arief Hidayat ◽  
Shintaro Terabe ◽  
Hideki Yaginuma
Keyword(s):  
Travel Time ◽  
Mobile Phones ◽  
Open Source Software ◽  
Smart Cities ◽  
Low Cost ◽  
Time Travel ◽  
Media Access Control ◽  
Media Access ◽  
Address Data ◽  
Data Points

Currently, the development of WiFi is proliferating, especially in the field of transportation and smart cities. At the same time, WiFi is a low-cost technology, which offers a longer survey time and is able to support the Big Data era. This paper describes our study, which first uses a WiFi scanner to capture media access control (MAC) address data of bus passengers’ WiFi devices and then identifies each MAC address travel time to confirm the bus passengers. The MAC address is a unique ID for each device used such as mobile phones, smartphones, laptops, tablets, and other WiFi-enabled equipment. The WiFi scanner was placed inside the bus to capture all the MAC addresses inside and around the bus. The survey was conducted for one day (eight hours). The paper describes the procedure of the time travel estimation for each MAC address using the “point to path” analysis in QGIS open source software. This procedure, using point to path-GIS, produced 70,000-80,000 raw data points cleaned into 100-130 new data points. The procedure determined how many passengers traveled and explained which bus passengers used based on travel time.

Sign in / Sign up

Export Citation Format

Share Document