In this demonstration, we show an indoor location tracking system that broadcasts ranging data to mobile phones using ultrasonic signals. The system capitalizes on the ability for many smart-phones to detect audio above the human hearing range. This ...

Mobile phones have become an ideal platform for physiological and environmental sensing. A number of research and commercial smartphone "accessories" have emerged in recent years that try to extend the sensing capabilities of a mobile phone. However, ...

Incorrect muscle usage and muscle fatigue are a leading cause of many sports injures. As a result, sensing and monitoring muscles, as well as human motion, is important. Toward this end, we present the Muscle Activity Recognition System (MARS) system. ...

Energy saving is the main goal in most building energy monitoring applications. These systems, however, are operated by people. For this reason, an intuitive user interface is an essential element that will affect users' data understandability, thereby ...

Though there exist ready-made DSRC/WiFi/3G/4G cellular systems for roadway communications, there are common defects in these systems for roadway safety oriented applications and the corresponding challenges remain unsolved for years, i.e., WiFi cannot ...

Developing, testing, debugging, and evaluating communication protocols for low-power wireless networks is a long and cumbersome task. Simulators can be helpful in the early stages of development, but their models of hardware components and the wireless ...

We demonstrate the CLEO mobile sensing platform, including ultra-portable, low-power sensors, phone-based data upload software, and a location resolution and data management web service in the cloud. The sensing platform leverages cloud-offloaded GPS (...

PEAKSAVE system is an energy monitoring service based on Wireless Sensor Networks (WSN). A smartphone is an important point of a system. Users can understand the energy consumption of each electric device and lighting in real time. Responsive energy ...

Designing a new sensor board is costly, especially for a production in a small quantity. By modularizing common functionalities, a large portion of the sensor board can be reused. In this work, we propose an Extension Board, a sensor board which is ...

A generic and lightweight service for indoor and outdoor detection is demonstrated that mainly uses three lightweight sensing resources, including light sensors, cell tower signals and magnetism sensors, to make ambient environment detection in a fast, ...

It is a tedious task to search and locate a specific book from massive number of books arbitrarily placed in a bookshelf. In this paper, we demonstrate iBookshelf, a system which allows users to quickly search and accurately locate books in the bookshelf,...

In this demonstration, we present a working prototype that uses an Anisotropic Magnetoresistive (AMR) sensor array to estimate the electricity usage on individual branches of an electricity panel. Our design enables the general public to retrofit an ...

Compressive Sensing (CS) is a novel approach for data representation, which can represent signals at a rate below the Nyquist rate with low computation costs on encoder. For these characteristics, CS is very suitable for low power sensor nodes to save ...

In this work we point out the issue of the IETF RPL routing protocol's two different downwards routing schemes not being able to interoperate with each other. This problem is less of an issue when low-power and lossy networks (LLNs) are deployed ...

Reliable flooding in wireless sensor networks (WSNs) is desirable for a broad range of applications and network operations. However, it is a challenging problem to ensure 100% flooding coverage efficiently considering the combined effects of low-duty-...

Robot platforms have been proposed to address challenges of wireless sensor network deployments in dynamic environments. Enabling a fraction of nodes to be mobile can lead to improvements in sensing coverage, network lifetime, and network connectivity. ...

Wireless control systems consist of sensing and actuating devices that are commonly driven by a central controller. Wireless communication protocols for Cyber-Physical Systems (CPS) match this design by employing a "sense → collect → process → ...

Device-free passive localization (DfP) techniques can localize human subjects without wearing a radio tag. Being convenient and private, DfP can find many applications in ubiquitous/pervasive computing. Unfortunately, DfP techniques need frequent manual ...

In this paper, we propose an in-situ Crowd-aware Sensing Platform, called "CrowdMon", which envisions the cooperation among mobile users in highly crowded urban areas such as metro and square. CrowdMon establishes a spontaneous connection from co-...

Today, Radio Frequency ID (RFID) technology is adopted in many applications such as asset tracking, supply chain management, manufacturing, retailing, payment systems, security and access control [1]. In this poster, we consider a novel application that ...