Design and Development of IoT-Based Distributed Vibration Recording Instrument
Rendy Ramadhana Wahyudi (a), Yudi Rosandi (a*)

a) Department of Geophysics, Faculty of Mathematics and Natural Sciences, Universitas Padjadjaran
Jl. Raya Bandung Sumedang km. 21 Jatinangor, Kab. Sumedang, Jawa Barat, Indonesia
*rosandi[at]geophys.unpad.ac.id

Abstract

The IoT technology has a vast range of applications in nowadays human activities. The technology has tremendous capabilities, especially in the monitoring and automatization applications. In this work we report the development of wireless vibration sensors in order to detect the ground vibrations, based on the SM-4 geophone sensors. This study demonstrates the feasibility of deploying a cost-effective geophone sensor system, through testing the wireless functionality. The IoT Ground Vibration Recorder integrates a 10 Hz vertical geophone sensor with an ESP32 DevKit V1 board, using the ESP NOW protocol for wireless communication and data transmission. Data transmission involves a structured header and body. Field tests encompass diverse conditions: open land, buffer zones, and dense vegetation areas.

The findings demonstrate the suitability of the ESP NOW protocol for sending seismic data, limited to 250 bytes per transmission. The maximum effective distance reached 95.3 meters, with varying results. Stable connections were observed at shorter distances, whereas longer distances resulted in poorer connections.

In conclusion, this study advances seismic sensor systems via ESP32 integration. It successfully transmits seismic data packages and establishes effective sensor communication. Furthermore, the study proposes utilizing LoRa modules to extend connection distances and optimize battery life, enhancing the system^s overall performance. The ESP32 emerges as a promising option for future applications, offering significant potential for seismic data transmission and effective communication between sensors.

Keywords: Keywords: Geophone, IoT, ESP32

Topic: Computer Science