scholarly journals Development of a Measurement System Aiming at Detection of Ground Contact in Running and Providing Immediate Feedback Using 3-Axial Acceleration Sensor and Wireless Communication Installed on a Smart Device

2018 ◽  
Vol 17 (1) ◽  
pp. 1-6 ◽  
Author(s):  
Takahiro Tamura ◽  
Ryo Matsuda ◽  
Masaki Suido
Keyword(s):  
Wireless Communication ◽  
Measurement System ◽  
Smart Device ◽  
Ground Contact ◽  
Acceleration Sensor ◽  
Immediate Feedback ◽  
Axial Acceleration

The Hardware Design of Measurement System of Transmission Lines Based on Wireless Communication

2015 ◽  
Vol 1092-1093 ◽  
pp. 366-369
Author(s):  
Shu Min Sun ◽  
Wen Juan Jiang ◽  
Yu Meng ◽  
Yan Cheng
Keyword(s):  
Wireless Communication ◽  
Data Storage ◽  
Measurement System ◽  
Transmission Lines ◽  
High Speed ◽  
Time Synchronization ◽  
Clock Synchronization ◽  
Report Generation ◽  
Test Efficiency ◽  
Synchronization Module

A set of measurement system for the testing of transmission lines, composing of wireless center station, wireless current acquisition and transmission nodes, wireless voltage acquisition and transmission node, was designed, which was based on wireless communication. The high speed wireless bridge working at 2.4GHz together with the clock synchronization module based on the IEEE1588 communicating protocol were both employed for the communication and time synchronization separately. The measurement system has data storage, waveform display, data analysis, automatic report generation and other functions. The measurement system can greatly reduced arrangement of cables, thereafter improved the test efficiency.

scholarly journals Developing a Smart Device for Measuring and Monitoring Ammonia Concentration

2020 ◽  
Vol 30.8 (147) ◽  
pp. 7-13
Author(s):  
Thanh BUI Dang ◽  
◽  
Van Truong PHAM ◽  
Huy Phuong NGUYEN
Keyword(s):  
Signal Processing ◽  
Wireless Communication ◽  
Communication Protocol ◽  
Ammonia Concentration ◽  
Smart Device ◽  
Joint Stock Company ◽  
Ammonia Sensor ◽  
Stock Company ◽  
Wireless Communication Protocol ◽  
Monitor Data

This paper presents an approach for design and realization of a smart device for measuring and monitoring ammonia concentration. The developed system included two parts: hardware and software, in which the hardware of the system has been developed based on the ATMEGA328P microcontroller in order to collect data from the ammonia sensor MQ135. Meanwhile, the software is developed for signal processing and warning according to different thresholds. Collected data by the system is then transmitted to a computer via the wireless communication protocol. In addition, an interface is also designed on computers to collect and monitor data from sensors. The developed system allows to measure ammonia concentration up to 300ppm and has been tested not only at the laboratory but also at NPK factory of Lamthao Fertilizers and Chemicals Joint Stock Company. Experimental results show the desired performances of the developed system.

Abstract 240: Smartphone Application to Provide Real-Time Cardiopulmonary Resuscitation Quality Feedback

Circulation ◽  
2019 ◽  
Vol 140 (Suppl_2) ◽  
Author(s):  
Emily Stumpf ◽  
Ravi Ambati ◽  
Raj Shekhar ◽  
Steven Staffa ◽  
David Zurakowski ◽  
...  
Keyword(s):  
Cardiopulmonary Resuscitation ◽  
Real Time ◽  
Mobile Application ◽  
Sensor Data ◽  
Smart Device ◽  
Compression Rate ◽  
Acceleration Sensor ◽  
Compression Depth ◽  
Quality Feedback ◽  
Cpr Quality

Introduction: Quality of cardiopulmonary resuscitation (CPR) contributes significantly to morbidity and mortality in both in-hospital and out-of-hospital cardiac arrest. Key parameters that determine the CPR quality are compression rate, compression depth, duration of interruptions, chest recoil factor and respiratory rate. Several studies have demonstrated that real-time audiovisual feedback improves CPR quality in both bystanders and hospital staff. This study aims to develop and validate a smart device (phones and wearable technology) application to provide real-time audiovisual and haptic feedback to optimize CPR quality, by calculating aforementioned chest compression parameters. Hypothesis: A mobile application using acceleration sensor data from smart devices can provide accurate real time CPR quality feedback. Methods: A mobile application was developed to track the compression depth, compression rate and pause duration in real time using the data captured from the on-device accelerometer. The mobile device was placed on an adult manikin’s chest along the midline close to the point of compressions. Data from the application was compared directly to data obtained from a validated clinical standard CPR quality tool. Results: CPR quality parameters were obtained from the app and the standard for 60, 10-second-long sessions. Bland-Altman plot analysis for compression depth showed agreement between the app measurements and standard within +/-3.5mm (Figure 1). The intraclass correlation for agreement in the measurement of compression count was 0.92 (95% CI: 0.88-0.95), indicative of very strong agreement. Conclusions: Smart device (phones and wearable technology) applications using acceleration sensor data can accurately provide real-time CPR quality feedback. With further development and validation they can provide a ubiquitous CPR feedback tool valuable for out of hospital arrests and in under-privileged areas worldwide.

The Development of a GPS Based RF Signal Strength Measurement System

2013 ◽  
Vol 309 ◽  
pp. 294-301
Author(s):  
Méhes László
Keyword(s):  
Wireless Communication ◽  
Communication Networks ◽  
Measurement System ◽  
Signal Strength ◽  
Wireless Communication Networks ◽  
Strength Measurement ◽  
Gps Positioning ◽  
Wireless Nodes ◽  
Rf Signal

Nowadays the wireless communication networks are the bigger part in the communication area. It is very important to choose the best place for the wireless nodes. To support the placement of these devices I wanted to create a signal strength measurement system that I implemented on ZigBee platform with GPS positioning.

Design of Weight and Height Measurement System Based Wireless Communication

2021 ◽  
Author(s):  
Sifaul Warohmatulilla ◽  
Haniah Mahmudah ◽  
Moch. Zen Samsono Hadi
Keyword(s):  
Wireless Communication ◽  
Measurement System ◽  
Height Measurement
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