Design and implementation of data logger using lossless data compression method for Internet of Things

Hadiatna, Febrian; Hindersah, Hilwadi; Yolanda, Desta; Agus, Triawan Muhammad

doi:10.1109/icsengt.2016.7849632

Cited by 13 publications

(7 citation statements)

References 15 publications

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“…MAX232 is the foundation of the RS232-TTL interface. The interface uses a capacitive voltage generator to supply RS232 voltage level [5]. It has two receivers and two transceivers.…”

Section: Rs232-ttl Interfacementioning

confidence: 99%

“…The program then checks the availability of each extracted data (no matter if it is empty or not) and transforms unavailable data to empty data. Then, the data (whether it is empty or not) is transformed from string to float data and processed to real-time measurements according to Equations (2)- (5). Next, the program checks the availability of URL transmission, posts the real-time data to the Thingspeak server if the transmission is available, and then transforms the data to the USB storage; otherwise the program sleeps 5 s before the next step, in which the program saves the sensed data and measurement time to a local USB drive.…”

Section: Python Program On Pcmentioning

confidence: 99%

“…However, PLC devices and data-acquisition devices are too expensive for remote residences. Many low-cost data loggers are designed due to this reason, such as the loggers designed by Munandar and Syamsi [3], Ramdan et al [4], and Hadiatna et al [5]. All these data loggers are designed based on microcontrollers or FPGAs, which are much cheaper than industrial PLC.…”

Section: Introductionmentioning

confidence: 99%

“…In addition to circuit design, the sensors in references [1][2][3][4][5] mainly communicate through cables. Such data logging systems could quickly become disordered and difficult to maintain.…”

Section: Introductionmentioning

confidence: 99%

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Open Source Data Logging and Data Visualization for an Isolated PV System

Jiang

Iqbal

2019

Electronics

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Monitoring the operation of an isolated photovoltaic (PV) system needs both data loggers and web transfer to collect the sensor data. The data includes the measurement of the voltage and current of the PV system and for local weather. The PV system in Memorial University of Newfoundland (MUN) is 5 m away from the window, where the weather data is collected. In reality, PV systems are approximately 25–50 m away from the weather sensors. It is, therefore, more meaningful to realize the sensor communications by wireless transfer than long cables, which can significantly reduce the cables of a large PV system with long distances among sensors. The PC receives all the sensor data and transfers hem to a web server (Thingspeak). A web server is applied to monitor the operation of the system instead of a local server when its users are far away from the location, even though the local server allows more frequent data logging (once per second). The data transformation between the PC and the web server must guarantee the stability and robustness of the program. The system alarm that reports the disconnection failure is also necessary to notify the users. This paper will first introduce the general system setup, then present each part of the system in detail, and finally, analyze the collected data.

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“…MAX232 is the foundation of the RS232-TTL interface. The interface uses a capacitive voltage generator to supply RS232 voltage level [5]. It has two receivers and two transceivers.…”

Section: Rs232-ttl Interfacementioning

confidence: 99%

Section: Python Program On Pcmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Open Source Data Logging and Data Visualization for an Isolated PV System

Jiang

Iqbal

2019

Electronics

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show abstract

“…Experiments show that statistics can be further utilized to estimate the frequency of the landslides. F. Hadiatna et al [5] developed a data logger which uses lossless compression to optimize the storage space. Experiments shows that it can compress the data up to 50% but data processing duration suffers from the sampling interval, data length and computation power of the device.…”

Section: II Data Logging Over Wsnmentioning

confidence: 99%