Wireless data acquisition system for acquiring voltages of microbial fuel cells

Abstract

The invention discloses a wireless data acquisition system for acquiring a voltage of a microbial fuel cell, which comprises a single-chip minimum system, an analogue-to-digital conversion module for inputting a microbial fuel cell voltage signal, and a global system for mobile communications (GSM) communication unit, wherein the single-chip minimum system is connected to the analogue-to-digital conversion module and the wireless communication unit, respectively. The system of the invention is low in volume, power consumption and cost, high in reliability, and adaptive to severe working environment; by adopting a high-accuracy analogue-to-digital converter, the conversion accuracy is guaranteed and accurate measurement on the voltage can be realized; and by adopting a GSM short message module for wireless data transmission, the acquisition data can be obtained in time and conveniently and automatic monitoring of a long distance can be realized; and a memory module and a universal serial bus (USB) communication interface are also adopted, so that the system can be connected to a computer through a USB cable to transmit the acquisition data at a high speed.

Description

technical field [0001] The invention belongs to the field of data collection, in particular to a system for wirelessly collecting voltage data of microbial fuel cells. Background technique [0002] A microbial fuel cell is a device that uses microorganisms to directly convert chemical energy in organic matter into electrical energy. In the process of studying the characteristics of microbial fuel cells, it is necessary to measure and analyze the battery voltage, including the anode potential, cathode potential, and electrode potential difference. When there is an external load, it is usually necessary to measure the potential difference at both ends of the load. It has multiple channels to meet the measurement requirements of multiple voltage signals of microbial fuel cells. [0003] Due to its special working principle, the output voltage of microbial fuel cell is low. The open circuit voltage of a single ordinary microbial fuel cell is generally below 800mV, its voltage i...

AI Technical Summary

Problems solved by technology

In addition, since microbial fuel cells use the metabolism of microorganisms in organic matter to convert chemical energy into electrical energy, in actual research and application, the entities of the battery are usually placed in field environments such as lakes and rivers, while the volume of traditional data acquisition instruments Large, high power consumption, expensive, not suitable for working in harsh field environments, and usually use wired interfaces to transmit data with computers, or use data storage cards to store collected data, and the acquisition of collected data needs to be carried out at the collection site. For these shortcomings and deficiencies, it is necessary to design a wireless data acquisition system suitable for microbial fuel cell voltages working in field environments

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