Design and development of a tablet based real time wireless data logger

Siew, Zhan Wei; Wong, Chen How; Tan, Shee Eng; Yoong, Hou Pin; Teo, Kenneth Tze Kin

doi:10.1109/ghtce.2012.6490135

Cited by 8 publications

(2 citation statements)

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“…(HOBO U12 4-Channel External Data Logger -U12-006, 2015). There are unnecessary applications embedded together with standard data loggers, (Siew et al, 2012) such as temperature sensor for a monitoring system or Wi-Fi for a wireless communication unit. Such applications are not necessary for HKT systems in Borneo's rural area due to the limited power supply and absence of internet access.…”

Section: Introductionmentioning

confidence: 99%

Design of a Data Logging System for a Small Scale Hydrokinetic Turbine

Ringgau¹

2021

ASMScJ

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A suitable data logger is needed for data collection to demonstrate the practicality of Hydrokinetic Turbine (HKT) in a rural application. Currently, commercial data loggers are expensive and consume extensive amounts of energy. The high cost is due to the sophisticated applications or features embedded together with the loggers. However, some of these features are not necessarily needed in Borneo's rural area due to limited power supply and an absence of internet access. Therefore, in this study, a data logger was designed according to Quality Function Deployment (QFD) to feed the specific or critical parameters and applications that suit HKT's data collection. The logger was calibrated and tested in a laboratory. The practicality of the data logger was also verified in a field test. An automatic data-file creation capability was developed, and a Secure Digital High Capacity (SDHC) memory card was chosen to provide high storage capacity. Besides that, the logger was designed with low energy consumption and lightweight. The results showed that the error of voltage divider, propeller type current meter and rotational speed meter were within 1%, whereas, 5% of error was observed at the current transducer. Therefore, the data logger demonstrated an acceptable behaviour of the logging performance test.

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Section: Introductionmentioning

confidence: 99%

Design of a Data Logging System for a Small Scale Hydrokinetic Turbine

Ringgau¹

2021

ASMScJ

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“…Android gives users the opportunity to develop many applications, thanks to the open-source structure and ARM architecture. It can be used as a wireless monitoring and control system [18], a smart home system [19], real time wireless data logger [20], real time land policy assistance (easier fieldwork) [21], and an educational assistant system [22].…”

Section: Introductionmentioning

confidence: 99%

Design and Implementation of Android-Based Autonomous Human Tracking Vehicle

Yatak¹,

Göktaş²,

Duran³

2018

Bilişim Teknolojileri Dergisi

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Abstract-Design and properties of an Android-based autonomous human tracking vehicle have been presented in this paper. The vehicle was developed by using 3G technology with smartphone. The aim of this paper is to implement a low cost, user friendly and real time autonomous human tracking system for unmanned ground vehicle. The real-time vehicle control and transmission of the captured image were realized by connecting to the user's smartphone from the smartphone on the vehicle. Autonomous human tracking was provided by the "Follow" button. The vehicle was controlled by the user remotely. A cost effective system was realized by XMPP (Extensible Messaging and Presence Protocol)) protocol and using minimum hardware. In addition, unnecessary power consumption was prevented through the developed software with the accelerometer by detecting the vehicle condition. Performance tests were on command and image transmission. Average time delay of the commands from the user smartphone to the smartphone on the vehicle was measured as 240 milliseconds and the time delay of the commands from the smartphone on the vehicle to the user smartphone was measured as 158 milliseconds.Keywords -3G Mobile, Communication, Mobile Robots, Android. Android Tabanlı Otonom İnsan Takip Aracı Tasarımı ve GerçekleştirilmesiÖzet-Bu makalede Android tabanlı gerçekleştirilen otonom insan takip aracının özellikleri ve tasarımı sunulmaktadır. Çalışma akıllı telefon ile 3G teknolojisi kullanılarak geliştirilmiştir. Çalışmanın amacı, insansız kara taşıtları için, ucuz, kullanıcı dostu ve gerçek zamanlı bir otonom insan takip sistemi gerçekleştirmektir. Gerçek zamanlı araç denetimi ve yakalanan görüntünün aktarımı araç üzerindeki telefondan, kullanıcının akıllı telefonuna bağlantı yapılarak gerçekleştirilmiştir. Otonom insan takibi "Takip" butonu ile sağlanmaktadır. Gerçekleştirilen takip aracı kullanıcı tarafından uzaktan denetlenmektedir. XMPP protokolü ve minimum donanım gereçleri kullanılarak, uygun maliyetli bir sistem gerçekleştirilmiştir. Ayrıca, gereksiz güç tüketimi, ivme-ölçer ile aracın durumu algılanarak geliştirilen yazılım ile önlenmektedir. Komut ve görüntü iletiminde sistemin performans testleri yapılmıştır. Kullanıcıda bulunan akıllı telefonundan araç üzerindeki akıllı telefona gönderilen komutların ortalama gecikme süresi 240 milisaniye ve araçtaki akıllı telefondan kullanıcı akıllı telefonuna gelen komutların gecikmesi 158 milisaniye olarak ölçülmüştür.Anahtar Kelimeler-3G Mobil, Haberleşme, Mobil Robotlar, Android.

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