scholarly journals Design and Implementation of Low Power and Sleep Mode Data Logger for Automatic Weather Stations

2019 ◽  
Vol 8 (9) ◽  
pp. 2097-2102
Keyword(s):  
Real Time ◽  
Mobile Communications ◽  
Sleep Mode ◽  
Data Logger ◽  
Analog To Digital ◽  
Data Loggers ◽  
Current Consumption ◽  
Temperature Detector ◽  
Weather Stations ◽  
Cloud Computation

In Automatic Weather Stations (AWS), data loggers are used for recording and displaying the output obtained from various sensors. In the paper, a data logger is designed and developed using MSP430F5529 launchpad, Node MCU section in wake up/sleep mode, a Resistance Temperature Detector(RTD) circuit and a power supply. Energia and Arduino software is also used for developing and uploading the code on the MSP430F5529 microcontroller and on Node MCU respectively. During designing of data logger the inbuilt Real Time Clock(RTC) is activated using RTC library which keeps track of time and date. The paper also presented cloud computation using Global System for Mobile communications(GSM) and WI-FI module for continuous monitoring of output taken from a RTD sensor integrated with designed data logger in real time. In the paper mathematical calculations are described for calibration of Analog-to-Digital Converter(ADC) MSP430F5529 which is used in development of data logger. The paper also presented hardware implementation results of developed data logger and with the use of microcontroller in sleep mode, the current consumption decreases from 10mA to 6mA and hence power consumption of the data logger from the battery is minimized . Therefore data logger can be made to work for a longer duration of time with higher efficiency.

scholarly journals Technical Note: Animal-borne CTD-Satellite Relay Data Loggers for real-time oceanographic data collection

2009 ◽  
Vol 6 (2) ◽  
pp. 1261-1287 ◽  
Author(s):  
L. Boehme ◽  
P. Lovell ◽  
M. Biuw ◽  
F. Roquet ◽  
J. Nicholson ◽  
...  
Keyword(s):  
Data Collection ◽  
Real Time ◽  
Marine Mammals ◽  
Satellite System ◽  
Daily Basis ◽  
Technical Note ◽  
Data Logger ◽  
Temperature Conductivity ◽  
Data Loggers ◽  
Large Numbers

Abstract. The increasing need for continuous monitoring of the world oceans has stimulated the development of a range of autonomous sampling platforms. One novel addition to these approaches is a small, relatively inexpensive data-relaying device that can be deployed on marine mammals to provide vertical oceanographic profiles throughout the upper 2000 m of the water column. When an animal dives, the CTD-Satellite Relay Data Logger (CTD-SRDL) records vertical profiles of temperature, conductivity and pressure. Data are compressed once the animal returns to the surface where it is located by, and relays data to, the Argos satellite system. The technical challenges met in the design of the CTD-SRDL are the maximising of energy efficiency by minimising size, whilst simultaneously maintaining the reliability of an instrument that cannot be recovered and is required to survive its lifetime attached to a marine mammal. The CTD-SRDLs record temperature and salinity with an accuracy of better than 0.005°C and 0.02 respectively. However, due to the limited availability of reference data for post-processing, data are often associated with slightly higher errors. The potential to collect large numbers of profiles cost-effectively makes data collection using CTD-SRDL technology particularly beneficial in regions where traditional oceanographic measurements are scarce. Depending on the CTD-SRDL configuration, it is possible to sample and transmit hydrographic profiles on a daily basis, providing valuable and often unique information for a real-time ocean observing system.

scholarly journals Designing and Implementation of Free RTOS Multichannel Data Logger using Microcontroller

2019 ◽  
Vol 8 (10) ◽  
pp. 2832-2836
Keyword(s):  
Hardware Implementation ◽  
Electronic Device ◽  
Data Logger ◽  
Voltage Output ◽  
Multichannel Data ◽  
Weather Stations ◽  
Cloud Computation ◽  
Over Time

A data logger is an electronic device that records data over time or in relation to location either with a built in instrument or sensor. In the paper, a data logger is designed and developed using STM32F407 DISCOVERY Board. An code is developed and tested using STM32CUBE and Atollic True Studio softwares in the proposed work. GSM Module SIM900EI is interfaced with microcontroller to send voltage output values of all the sensors interfaced with it for cloud computation in the paper. The paper also demonstrate hardware implementation of the designed data logger. The proposed data logger can be used in the Automatic Weather Stations (AWS).

scholarly journals Technical Note: Animal-borne CTD-Satellite Relay Data Loggers for real-time oceanographic data collection

Ocean Science ◽  
2009 ◽  
Vol 5 (4) ◽  
pp. 685-695 ◽  
Author(s):  
L. Boehme ◽  
P. Lovell ◽  
M. Biuw ◽  
F. Roquet ◽  
J. Nicholson ◽  
...  
Keyword(s):  
Data Collection ◽  
Real Time ◽  
Marine Mammals ◽  
Satellite System ◽  
Daily Basis ◽  
Technical Note ◽  
Time Data ◽  
Data Logger ◽  
Temperature Conductivity ◽  
Data Loggers

Abstract. The increasing need for continuous monitoring of the world oceans has stimulated the development of a range of autonomous sampling platforms. One novel addition to these approaches is a small, relatively inexpensive data-relaying device that can be deployed on marine mammals to provide vertical oceanographic profiles throughout the upper 2000 m of the water column. When an animal dives, the CTD-Satellite Relay Data Logger (CTD-SRDL) records vertical profiles of temperature, conductivity and pressure. Data are compressed once the animal returns to the surface where it is located by, and relays data to, the Argos satellite system. The technical challenges met in the design of the CTD-SRDL are the maximising of energy efficiency and minimising size, whilst simultaneously maintaining the reliability of an instrument that cannot be recovered and is required to survive its lifetime attached to a marine mammal. The CTD-SRDLs record temperature and salinity with an accuracy of better than 0.005 °C and 0.02 respectively. However, due to the limited availability of reference data, real-time data from remote places are often associated with slightly higher errors. The potential to collect large numbers of profiles cost-effectively makes data collection using CTD-SRDL technology particularly beneficial in regions where traditional oceanographic measurements are scarce or even absent. Depending on the CTD-SRDL configuration, it is possible to sample and transmit hydrographic profiles on a daily basis, providing valuable and often unique information for a real-time ocean observing system.

scholarly journals Thermolabile drug storage in an ambulatory setting

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Fernando do Pazo-Oubiña ◽  
Bartomeu Alorda-Ladaria ◽  
Ana Gomez-Lobon ◽  
Bàrbara Boyeras-Vallespir ◽  
María Margalida Santandreu-Estelrich ◽  
...  
Keyword(s):  
Tertiary Care ◽  
Statistical Treatment ◽  
Storage Conditions ◽  
Ambulatory Setting ◽  
Temperature Record ◽  
Care Hospital ◽  
Data Logger ◽  
Data Loggers ◽  
Ambulatory Patients ◽  
Clinical Consequences

AbstractMore thermolabile drugs are becoming available, and in most cases, these medications are dispensed to ambulatory patients. However, there is no regulation once medications are dispensed to patients and little is known with regard to what happens during transport and home storage. Previous studies suggest that these drugs are improperly stored. The present study was designed to determine the storage conditions of thermolabile drugs once they are dispensed to the patient in the Hospital Pharmacy Department. This is a prospective observational study to assess the temperature profile of 7 thermolabile drugs once they are dispensed to ambulatory patients at a tertiary care hospital. A data logger was added to the medication packaging. Temperature was considered inappropriate if one of the following circumstances were met: any temperature record less than or equal to 0 °C or over 25 °C; temperatures between 0–2 or 8–25 °C for a continuous period over 30 min. The time series of temperature measurements obtained from each data logger were analyzed as statistically independent variables. The data shown did not undergo any statistical treatment and must be considered directly related to thermal measurements. One hundred and fourteen patients were included and 107 patients were available for the analysis. On the whole, a mean of 50.6 days (SD 18.3) were measured and the mean temperature was 6.88 °C (SD 2.93). Three data loggers (2.8%) maintained all the measurements between 2 and 8 °C with less than 3 continuous data (< 30 min) out of this range but no data over 25 °C or below or equal to 0 °C. 28 (26.2%) data loggers had at least one measurement below zero, 1 data logger had a measurement greater than 25 °C and 75 (70.1%) were between 0 and 2 °C and/or between 8 and 25 °C for more than 30 min. In conclusion, once dispensed to patients, most thermolabile drugs are improperly stored. Future studies should focus on clinical consequences and possible solutions.

scholarly journals DATA LOGGER DAN PENGONTROL TEMPERATUR OTOMATIS PADA PEMANAS AIR (HEATER)

2018 ◽  
Vol 9 (2) ◽  
pp. 193-201
Author(s):  
Muhammad Nurul Puji
Keyword(s):  
Real Time ◽  
Time Data ◽  
Data Logger ◽  
Air Heater ◽  
Real Time Data

Pengaturan temperatur (atau besaran fisis lain) banyak dijumpai di lapangan sebagai pengondisi supaya system bekerja pada parameter ukur yang telah ditetapkan. Pengaturan besaran fisis bisa dilakukan dengan mendapatkan nilai dari parameter ukur dengan menggunakan sensor dan diolah sehingga hasil yang diperoleh tersebut dapat dipergunakan untuk mengontrol besaran yang diinginkan melalui aktuator. Pada artikel ini dibuat suatu sistem yang berfungsi sebagai data logger dan pengontrol temperatur pada pemanas air (heater) secara otomatis dengan menggunakan mikrokontroler dan LabVIEW sebagai pengolah dan penyajian datanya. Besaran fisis temperatur diperoleh dengan menggunakan sensor LM35. Kemudian LabVIEW dan mikrokontroler akan berkomunikasi untuk pengambilan data sehingga data temperatur tersebut bisa ditampilkan dalam bentuk grafik secara real time. Data ini kemudian diproses oleh LabVIEW untuk dibandingkan dengan nilai temperatur yang dikehendaki sehingga LabVIEW akan mengontrol pemanas melalui sebuah relay sebagai aktuatornya. Relay akan ON pada saat temperatur berada di bawah batas bawah temperatur yang diset sebelumnya dan akan OFF apabila temperatur lebih tinggi daripada batas atas temperatur yang telah diset sebelumnya. Sehingga temperatur pemanas akan stabil pada temperatur yang dikehendaki.

scholarly journals Monitoring tidal hydrology in coastal wetlands with the Mini Buoy: applications for mangrove restoration

2020 ◽  
Author(s):  
Thorsten Balke ◽  
Alejandra Vovides ◽  
Christian Schwarz ◽  
Gail L. Chmura ◽  
Cai Ladd ◽  
...  
Keyword(s):  
Salt Marshes ◽  
Low Cost ◽  
Concept Design ◽  
Data Logger ◽  
Mangrove Restoration ◽  
Restoration Planning ◽  
In Situ Data ◽  
Data Loggers ◽  
Intertidal Wetlands ◽  
Tidal Hydrology

Abstract. Acquiring in-situ data of tidal flooding is key for the successful restoration planning of intertidal wetlands such as salt marshes and mangroves. However, monitoring spatially explicit inundation time series and tidal currents can be costly and technically challenging. With the increasing availability of low-cost sensors and data loggers, customized solutions can now be designed to monitor intertidal hydrodynamics with direct applications for restoration and management. In this study, we present the design, calibration, and application of the Mini Buoy, a low-cost bottom-mounted float containing an acceleration data logger for monitoring tidal inundation characteristics and current velocities derived from single-axis equilibrium acceleration (i.e. logger tilt). The acceleration output of the Mini Buoys was calibrated against water-level and current velocity data in the hypertidal Bay of Fundy, Canada, and in a tidally reconnected former aquaculture pond complex in North Sumatra, Indonesia. Key parameters, such as submersion time and current velocities during submergence can be determined over several months using the Mini Buoy. An open-source application was developed to generate ecologically meaningful hydrological information from the Mini Buoy data for mangrove restoration planning. We present this specific SE Asian mangrove restoration application alongside a flexible concept design for the Mini Buoy to be customized for research and management of intertidal wetlands worldwide.

scholarly journals Monitoring tidal hydrology in coastal wetlands with the “Mini Buoy”: applications for mangrove restoration

2021 ◽  
Vol 25 (3) ◽  
pp. 1229-1244
Author(s):  
Thorsten Balke ◽  
Alejandra Vovides ◽  
Christian Schwarz ◽  
Gail L. Chmura ◽  
Cai Ladd ◽  
...  
Keyword(s):  
Salt Marshes ◽  
Low Cost ◽  
Concept Design ◽  
Data Logger ◽  
Mangrove Restoration ◽  
Restoration Planning ◽  
In Situ Data ◽  
Data Loggers ◽  
Intertidal Wetlands ◽  
Tidal Hydrology

Abstract. Acquiring in situ data of tidal flooding is key for the successful restoration planning of intertidal wetlands such as salt marshes and mangroves. However, monitoring spatially explicit inundation time series and tidal currents can be costly and technically challenging. With the increasing availability of low-cost sensors and data loggers, customized solutions can now be designed to monitor intertidal hydrodynamics with direct applications for restoration and management. In this study, we present the design, calibration, and application of the “Mini Buoy”, a low-cost underwater float containing an acceleration data logger for monitoring tidal inundation characteristics and current velocities derived from single-axis equilibrium acceleration (i.e. logger tilt). The acceleration output of the Mini Buoys was calibrated against water-level and current-velocity data in the hypertidal Bay of Fundy, Canada, and in a tidally reconnected former aquaculture pond complex in North Sumatra, Indonesia. Key parameters, such as submersion time and current velocities during submergence, can be determined over several months using the Mini Buoy. An open-source application was developed to generate ecologically meaningful hydrological information from the Mini Buoy data for mangrove restoration planning. We present this specific SE Asian mangrove restoration application alongside a flexible concept design for the Mini Buoy to be customized for research and management of intertidal wetlands worldwide.

scholarly journals Desain Data Logger Sensor Suhu Berbasis Mikrokontroler ATMega16 dengan Empat Kanal Input

2020 ◽  
Vol 17 (1) ◽  
pp. 19
Author(s):  
Rismawati Rismawati ◽  
Muhammad Sadli
Keyword(s):  
Real Time ◽  
Data Logger ◽  
Microsoft Excel ◽  
Text Document

Penelitian ini bertujuan untuk merancang dan membuat sistem data logger sensor suhu berbasis mikrokontroler ATMega16 dengan empat kanal input. Rangkaian dibangun menggunakan mikrokontroler ATMega16 yang dilengkapi dengan empat sensor suhu LM35, sebuah LCD sebagai penampil data, dan sebuah modul USB sebagai pengirim data dari modul mikrokontroler ke komputer. Sistem data logger ini dapat menyimpan data hasil pengukuran secara real time setiap detik, dengan format text document (*.txt) dan Microsoft excel (*.xls). Tahapan eksperimen mulai dari perancangan, pembuatan, sampai pengujian sistem Data Logger. Informasi data suhu ditampilkan pada LCD dalam derajat celsius, dan grafik ditampilkan pada layar monitor komputer. Dari hasil pengujian yang dilakukan, sensor suhu LM35 dapat mengukur suhu dari 0°C sampai dengan 100°C, dengan akurasi pembacaan suhu sebesar 99,49%.

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