Embedded-based design of plant electrical signal acquisition terminal

Since the plant electrical signal is a low-frequency and weak electrical signal, it is susceptible to the surrounding acoustic noise and electromagnetic interference, and most of it is distributed in the high-frequency part of the electrical signal. In order to facilitate the collection of plant electrical signals, an embedded-based plant electrical signal collection terminal is designed. Through circuit testing and simulation, the plant electrical signal collection terminal can collect plant electrical signals at the µV level, the plant electrical signal collection terminal uses platinum contact electrodes to collect data from the object, and then amplifies, filters and other methods of collecting data through the signal collection unit and stores them in the data storage unit through the processing of the embedded master control unit to form a local data storage unit. The collected data are amplified and filtered through the signal acquisition unit, and then stored in the data storage unit through the embedded main control unit to form a local database for data management and data query, and at the same time, the collected data are transmitted to the PC through the WIFI communication unit to facilitate the data processing by MATLAB. The device has been verified by the acquisition of electric signals of Aloe vera, which has a certain significance and practical value for the research of the acquisition of plant electric signals.