SDI12 sensor data wireless acquisition device, system and method based on NB-IoT

Abstract

The invention discloses an SDI12 sensor data wireless acquisition device and system based on NB-IoT. A power supply module is used for providing power supply input for a main control module and each sub-module; the data sensing module is directly connected with the signal conditioning module and is used for acquiring six sensing data including field soil temperature and humidity, air temperature and humidity, soil conductivity and soil oxygen content; the signal conditioning module is connected with the data sensing module; the Arduino expansion board module is used as a main controller to establish connection with the signal conditioning module, and Arduino communicates with the sensor through the SDI interface module; the SDI interface module is connected with the main control module, the SDI interface module is an SDI12 communication protocol, and the SDI12 data recorder is communicated with the sensor by uploading an ASCII code on a data line; and the NB-IoT module is connected with the main control module, and the NB-IoT module comprises an NB-IOT chip and is used for the data acquisition device to perform wireless data transmission communication.

Description

Technical field: [0001] The invention relates to the field of farmland intelligent irrigation technology, in particular to a NB-IoT-based SDI12 sensor data wireless acquisition device, system and method. Background technique: [0002] The Internet of Things refers to a network concept in which various information sensing devices connect any device to the Internet through the Internet of Things domain name to communicate, so as to realize intelligent identification, positioning, tracking, monitoring and management. The Internet of Things can comprehensively perceive object information through technologies such as radio frequency identification, sensors, two-dimensional codes, and GPS satellite positioning, and realize information distribution and sharing through short-distance communication methods such as Bluetooth and Zigbee and long-distance communication methods of mobile communication networks. And process the collected object information to realize decision-making and i...

AI Technical Summary

Problems solved by technology

Existing sensors generally use wired connections and can only meet single-type acquisition, and cannot perform unified analysis and processing of multiple sensor data. The cost of collecting data is high and cannot meet the needs of real-time monitoring data

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