Battery Monitoring System using Microcontroller ESP32 and Internet of Things

Abstract

This paper deals with designing and implementing a battery management system (BMS) for autonomous devices, using batteries as the power source. BMSs are now available in packaged form as an integrated chip. However, these chips are often expensive and unavailable in Vietnam and the Czech markets. Besides, their ability to integrate custom functions, especially function wireless communication between BMS and workstation, is limited. In practice, monitoring the state of the battery during the device’s operation is very important to devise a suitable operating tactic. This work aims to design a system that can measure and estimate the parameters of several batteries in an unmanned autonomous device, and send the measured data to the workstation by using technology Internet of Things for monitoring and analysis during the device’s operation.

Battery Management System for Unmanned Electric Vehicles with CAN BUS and Internet of Things

“…Then the users with permission can access these data wherever, whenever for further uses. The uses of other IoT platforms in the BMS system also were introduced in [4,5].…”

“…Currently, there has not been any method to measure or compute exactly the State of Charge (SoC) of a Lithium battery, so the SoC can only be estimated approximately based on the parameters of the battery. There are three main methods to estimate the SoC, which are [3][4][5]23]:…”

“…UVs can fully autonomously operate with a pre-programmed plan or be remote-controlled [1,2]. Since the late 1950s, military UVs have been used in multiple functions such as reconnaissance, surveillance, etc., to minimize human casualties [5][6][7][8]. In recent wars and armed conflicts, UVs have asserted their irreplaceable role in various complex missions [7][8][9].…”

“…Traditionally, small UVs are powered by internal combusting engines (ICEs). These engines are characterized by not-so-high efficiency, slight hysteresis of dynamic behavior, and low power density in comparison with full-electric drives [3][4][5]. In recent decades, with increasing concerns about environmental and ecological issues, troubles of emission and noise caused by ICE must be considered by many governments and corporations.…”