Low-cost, robust gravimetric system for enhanced security of accesses to public places

2020 ◽  
Author(s):  
Tommaso Addabbo ◽  
Ada Fort ◽  
Marco Mugnaini ◽  
Valerio Vignoli ◽  
Matteo Intravaia ◽  
...  
Keyword(s):  
Low Cost ◽  
Public Places ◽  
Gravimetric System

scholarly journals Working Principle and Performance of a Scalable Gravimetric System for the Monitoring of Access to Public Places

Sensors ◽  
2020 ◽  
Vol 20 (24) ◽  
pp. 7225
Author(s):  
Tommaso Addabbo ◽  
Ada Fort ◽  
Matteo Intravaia ◽  
Marco Mugnaini ◽  
Marco Tani ◽  
...  
Keyword(s):  
Low Cost ◽  
Steel Plates ◽  
Public Places ◽  
Heterogeneous Information ◽  
Post Process ◽  
Working Principle ◽  
Metal Detectors ◽  
And Performance ◽  
Gravimetric System ◽  
Second Category

Here, we propose a novel application of a low-cost robust gravimetric system for public place access monitoring purposes. The proposed solution is intended to be exploited in a multi-sensor scenario, where heterogeneous information, coming from different sources (e.g., metal detectors and surveillance cameras), are collected in a central data fusion unit to obtain a more detailed and accurate evaluation of notable events. Specifically, the word “notable” refers essentially to two event categories: the first category is represented by irregular events, corresponding typically to multiple people passing together through a security gate; the second category includes some event subsets, whose notification can be interesting for assistance provision (in the case of people with disabilities), or for statistical analysis. The employed gravimetric sensor, compared to other devices existing in the literature, exhibits a simple scalable robust structure, made up of an array of rigid steel plates, each laid on four load cells. We developed a tailored hardware and software to individually acquire the load cell signals, and to post-process the data to formulate a classification of the notable events. The results are encouraging, showing a remarkable detectability of irregularities (95.3% of all the test cases) and a satisfactory identification of the other event types.

scholarly journals Low-Cost WASN for Real-Time Soundmap Generation

2021 ◽  
Vol 6 (1) ◽  
pp. 57
Author(s):  
Gerardo José Ginovart-Panisello ◽  
Ester Vidaña-Vila ◽  
Selene Caro-Via ◽  
Carme Martínez-Suquía ◽  
Marc Freixes ◽  
...  
Keyword(s):  
Real Time ◽  
Acoustic Analysis ◽  
Road Traffic ◽  
Low Cost ◽  
Traffic Noise ◽  
The Elderly ◽  
Road Traffic Noise ◽  
Public Places ◽  
Changing Patterns ◽  
Real Scenario

Recent advances in technology have enabled the development of affordable low-cost acoustic monitoring systems, as a response of several fields of application that require a close acoustic analysis in real-time: road traffic noise in crowded cities, biodiversity conservation in natural parks, behavioural tracking in the elderly living alone and even surveillance in public places for safety reasons. This paper presents a low-cost wireless acoustic sensor network developed to gather acoustic data to build a 24/7 real-time soundmap. Each node of the network comprises an omnidirectional microphone and a computation unit, which processes acoustic information locally to obtain nonsensitive data (i.e., equivalent continuous loudness levels or acoustic event labels) that are sent to a cloud server. Moreover, it has also been studied the placement of the acoustic sensors in a real scenario, following acoustics criteria. The ultimate goal of the deployed system is to enable the following functions: (i) to measure the Leq in real-time in a predefined window, (ii) to identify changing patterns in the previous measurements so that anomalous situations can be detected and (iii) to prevent and attend potential irregular situations. The proposed network aims to encourage the use of real-time non-invasive devices to obtain behavioural and environmental information, in order to take decisions in real-time.

Using Embedded Platforms to Monitor Network Security

2018 ◽  
Vol 7 (2) ◽  
pp. 9-13
Author(s):  
Cristian PASCARIU ◽  
Ionuţ-Daniel BARBU ◽  
Ioan BACIVAROV
Keyword(s):  
Energy Efficient ◽  
Low Cost ◽  
Sensitive Information ◽  
Embedded Devices ◽  
Public Places ◽  
Malicious Activity ◽  
Increased Risk ◽  
Man In The Middle ◽  
Network Equipment ◽  
Regular Network

Although in these moments wireless routers are accessible for consumer use in public places as well as in households, from a security perspective, wireless networks pose an increased risk, not only for unauthorized access to the network, but more important for manipulating the information flow of other users on the network. Man-in-the-middle attacks enable attackers to impersonate legitimate services and intercept communications from the users in an attempt to steal sensitive information. In this paper the authors propose a solution based on embedded devices to detect attackers that manipulate the network with the scope of stealing sensitive information. This solution is based on low cost and energy efficient computers that can be connected to regular network equipment to detect and alert on malicious activity.

The Design of a Novel Sensor Fusion Model for Monitoring People’s Density in Public Places Using Infrared Thermography

2009 ◽  
Vol 419-420 ◽  
pp. 377-380
Author(s):  
Amin Al-Habaibeh ◽  
S. Yaseen ◽  
R.M. Parkin ◽  
Fadel Otham ◽  
O. Albar
Keyword(s):  
Infrared Thermography ◽  
Sensor Fusion ◽  
Low Cost ◽  
Specific Area ◽  
The Novel ◽  
Movement Behaviour ◽  
Fusion Model ◽  
Public Places ◽  
Modern Cities ◽  
On Line

There is an increasing need in modern cities for automated Crowd Condition Monitoring (CCM) in order to provide continuous real-time on-line information regarding the density, number and movement behaviour of crowd within a specific area in order to allow the required level of services and facilities to be specified and directed. This paper describes the novel application of low-cost infrared system for estimating people’s density using infrared thermography. Sensor fusion system is developed to compensate for environmental noise. The results show that the suggested monitoring system could provide an efficient method to estimate crowd’s density.

scholarly journals Accesible co-creation tools for people with intellectual disabilities: working for and with end-users

2019 ◽  
Author(s):  
Sandra Martínez-Molina ◽  
Rosa Almeida ◽  
Raquel Losada Durán ◽  
Teresa Cid Bartolomé ◽  
Andrea Giaretta ◽  
...  
Keyword(s):  
Intellectual Disabilities ◽  
Design Thinking ◽  
Low Cost ◽  
Contextual Information ◽  
Rapid Change ◽  
Public Places ◽  
Societal Challenges ◽  
Problems And Solutions ◽  
People With Intellectual Disabilities ◽  
Game Board

In a world defined by rapid change, the search for solutions to societal challenges has become more complex calling for new paradigms of innovation focused on collaborations with the community and users. Co-creation approaches in the design and production of a service or product can bring low-cost innovation and unique and personalized customer experiences leading to user acceptance of a product or service. Under a co-creation perspective, the participatory approach developed in the MINDInclusion project aims to improve the inclusion of people with intellectual disabilities into public places and society by using a co-created online tool based on people with disabilities’ personal experiences. Paying special attention to the Design thinking method, the main goal of this experience was to co-create cognitive accessible design tools that guide the collection of users and other stakeholders experiences in the process of defining problems and solutions. To this end, 14 researchers and educators worked defining together a set of guiding exercises and design thinking methods for the 4 co-design cycles. To add an interactive and playful approach two tools were created to gather information to recreate as a final output “personas scenarios”, an “empathy map” and expected “use scenarios” that will guide the development of the web-tool based on user-centred specifications. The results have shown two tools. The former was an adapted game board about public places based on the traditional monopoly game and the latter a diary with a set of activities that will facilitate the collection of contextual information. Previous experiences have shown that co-design process can promote greater social cohesion, acceptance and empowerment. However, working with people with intellectual disability presents several challenges since the co-creation process needs to be cognitive accessible. This experience resulted in the creation of two cognitive accessible tools that can be extrapolated to other contexts.

scholarly journals Smart Face Mask with an Integrated Heat Flux Sensor for Fast and Remote People’s Healthcare Monitoring

Sensors ◽  
2021 ◽  
Vol 21 (22) ◽  
pp. 7472
Author(s):  
Marc Lazaro ◽  
Antonio Lazaro ◽  
Ramon Villarino ◽  
David Girbau
Keyword(s):  
Heat Flux ◽  
Body Temperature ◽  
Low Cost ◽  
Average Power ◽  
Face Mask ◽  
Heat Flux Sensor ◽  
Breathing Rate ◽  
Public Places ◽  
Flux System ◽  
Average Power Consumption

The COVID-19 pandemic has highlighted a large amount of challenges to address. To combat the spread of the virus, several safety measures, such as wearing face masks, have been taken. Temperature controls at the entrance of public places to prevent the entry of virus carriers have been shown to be inefficient and inaccurate. This paper presents a smart mask that allows to monitor body temperature and breathing rate. Body temperature is measured by a non-invasive dual-heat-flux system, consisting of four sensors separated from each other with an insulating material. Breathing rate is obtained from the temperature changes within the mask, measured with a thermistor located near the nose. The system communicates by means of long-range (LoRa) backscattering, leading to a reduction in average power consumption. It is designed to establish the relative location of the smart mask from the signal received at two LoRa receivers installed inside and outside an access door. Low-cost LoRa transceivers with WiFi capabilities are used in the prototype to collect information and upload it to a server. Accuracy in body temperature measurements is consistent with measurements made with a thermistor located in the armpit. The system allows checking the correct placement of the mask based on the recorded temperatures and the breathing rate measurements. Besides, episodes of cough can be detected by sudden changes in thermistor temperature.

scholarly journals Lighting Cities at Night

2018 ◽  
Author(s):  
Maryam Khabazi ◽  
Hooman Foroughmand Araabi
Keyword(s):  
Developing Countries ◽  
Low Cost ◽  
Urban Spaces ◽  
Significant Issue ◽  
Public Places ◽  
The City

Lighting in cities at night is a significant issue that maybe has not been discussed enough in developing countries. This issue should be considered from various aspects as an aesthetic issue, a low-cost art, or as a booster of safety or even identification and it also could be exploited as a landmark in some places, for example, more lighting can portray center, or with different colours and rhythms it can cause disparate feelings in residents. In general, lighting should be dissimilar in different public places and urban spaces, such as squares, streets, expressways, in front of buildings (facades), parks, indefensible spaces such as underneath of the bridges, tunnels, etc. Additionally, lighting can provoke intensely good or bad effect on cities if it causes extreme differences between day and night character of the place, for example, if the lighting at night converts the city into an attractive city, while is not enough attractive during days, it could be risky for the identification of that city. All of these issues are discussed in this essay.

scholarly journals Glove Sensor with AI system for Deaf and Blind People to Ease of Communication

2019 ◽  
Vol 9 (1S) ◽  
pp. 390-394
Keyword(s):  
Artificial Intelligence ◽  
Mobile Device ◽  
Technological Development ◽  
Low Cost ◽  
The Other ◽  
Raspberry Pi ◽  
Blind People ◽  
Public Places ◽  
The People ◽  
Sense Of Touch

Deaf and blind people find very difficult to communicate to other people. The latest technological development helps the people having disabilities particularly deaf and blind people to communicate to other people. These people can able to communicate with the help of their sense of touch. So the advance sensors integrating with the recent technology assists the people with disability for communicating with the other people. In this paper Glove based sensors combined with the Artificial Intelligence is demonstrated so that the deaf and blind people can communicate to other people in a big conference or any public places. It is also proved that the device developed is a low cost wearable device which is affordable to such a weaker section of people having disabilities. Raspberry-pi and mobile device are cantered around the sensors to process and communicate. With the help of the device demonstrated in this paper people with disabilities specially deaf and blind can involve freely in day to day regular activities.

Research on Indoor Pedestrian Positioning System Design Based on User Behavior Perception

2014 ◽  
Vol 687-691 ◽  
pp. 3853-3856
Author(s):  
Dong Dong Ding
Keyword(s):  
Radio Frequency ◽  
User Behavior ◽  
Low Cost ◽  
Single Chip ◽  
Communication Interface ◽  
Public Places ◽  
Interface Circuit ◽  
Indoor Location ◽  
Location System ◽  
Locating System

With the development of computer and embedded technology, ubiquitous computing age is coming. In the ubiquitous age, people could get all kinds of services anywhere and at any time. In this paper, we design an indoor location system based on ultrasonic sensor and radio frequency technology. The ultrasonic positioning technology has many merits of high positioning accuracy, simple circuit structure and low cost. There are some components such as locating system, communication system, location system, security system and so on, emphasized supporting technologies in order to provide researchers with general cognition. The principle and the design of the system are described in detail. The system consists of the single chip circuit, the circuit of ultrasonic, the circuit of radio frequency signal, communication interface circuit and so on. Perceptual system can promote environmental intelligence and human services development, but also can promote public places security monitoring and early warning intelligence and automation.

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