Wireless multipoint soil resistivity measuring system

A technology of soil resistivity and measurement system, which is applied in the field of wireless multi-point soil resistivity measurement system, can solve the problems of cumbersome measurement process, poor real-time performance, and long time, and achieve the effect of simple measurement process, good real-time performance and short consumption

Inactive Publication Date: 2012-04-25
SHAANXI UNIV OF TECH
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Problems solved by technology

This traditional laboratory method has high precision as a standard measurement method, and is also a benchmark for evaluating soil resistivity, but the measurement process is cumbersome, and it takes a long time, and the real-time performance is poor, which cannot meet the requirements of modern precision agriculture in a short time Completion of high-volume measurement requirements

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  • Wireless multipoint soil resistivity measuring system
  • Wireless multipoint soil resistivity measuring system
  • Wireless multipoint soil resistivity measuring system

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Embodiment Construction

[0043] The present invention will be described in further detail below in conjunction with the accompanying drawings and specific embodiments.

[0044] The overall design block diagram of the system is as follows figure 1 Shown: The system adopts the master-slave communication mode, that is, one master receives and multiple slaves send. This "one-to-many" communication network is realized by configuring the channels and channels of the wireless module.

[0045] like figure 2 Shown is the block diagram of the system host. It includes single-chip microcomputer control circuit, liquid crystal display circuit, external data storage circuit, wireless communication circuit and keyboard circuit. The host takes the STC89C52 single-chip microcomputer as the center, and performs simple processing on the data sent by the wireless module received from the slave, and identifies the slave number, and then displays the data through the LCD. The external data memory can store the data re...

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Abstract

The invention discloses a wireless multipoint soil resistivity measuring system. A soil resistivity measuring circuit is designed according to a principle of 'current-voltage four-electrode method', and a self-made mini-probe is used for reducing the interference on movement of a soil solute and can also carry out high-density distribution measurement. A wireless communication circuit of the wireless multipoint soil resistivity measuring system is an nRF24L01 wireless module which can form one 'one-to-many' communication network, thereby realizing multipoint measurement on the soil resistivity. The wireless multipoint soil resistivity measuring system establishes a measurement platform by a master-slave mode structure, a master machine finishes functions of receiving, processing, displaying and storing data of the soil resistivity, and a slave machine finishes functions of collecting and transmitting the data of the soil resistivity, thus a problem of consistency on multipoint soil resistivity real-time measurement is effectively solved. Based on test results, the wireless multipoint soil resistivity measuring system has excellent stability and practicability, and the soil resistivity, the saltness and the water content are of excellent linear relationship.

Description

technical field [0001] The invention relates to a system for measuring soil resistivity, in particular to a wireless multi-point soil resistivity measurement system. Background technique [0002] In the 21st century, agriculture has reached a very developed level, which is mainly due to the extensive use of chemical fertilizers and pesticides. While these chemicals bring high agricultural yields, they also cause many problems such as agricultural soil erosion, decreased soil productivity, and deterioration of the ecological environment of agricultural products and groundwater, which seriously hinders the sustainable development of agriculture. It is in this situation that precision agriculture technology emerges at the historic moment. [0003] Precision agriculture is a modern agricultural concept. The so-called precision agriculture refers to a field management method based on variation. The characteristics of soil and crops in farmland are not uniform, but change with ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01R27/14G08C17/02
Inventor 卢超
Owner SHAANXI UNIV OF TECH
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