Agricultural Internet of Things sensor communication method based on wireless network and Raspberry Pi nodes

A technology of wireless network and communication method, which is applied in the field of agricultural Internet of Things equipment and information processing, and can solve problems such as high transmission delay, dirty data, and different sensor interfaces

Active Publication Date: 2019-08-23
INNER MONGOLIA UNIVERSITY
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Sensors on different platforms are not compatible, which greatly increases the difficulty and cost of agricultural informatization
[0012] (2) In the prior art, since the direct use of the integrated analog-to-digital converter ADC in the system on chip will occupy a large amount of resources of the CPU
Too much data will lead to high transmission delay, and even dirty data, etc.
[0013] (3) There is no unified specification for sensor manufacturers, and the interfaces of sensors produced by different manu...

Method used

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  • Agricultural Internet of Things sensor communication method based on wireless network and Raspberry Pi nodes
  • Agricultural Internet of Things sensor communication method based on wireless network and Raspberry Pi nodes
  • Agricultural Internet of Things sensor communication method based on wireless network and Raspberry Pi nodes

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Embodiment

[0155] 1. Acquisition node based on Raspberry Pi:

[0156] Compared with other Raspberry Pi versions, the 3B+ version has the characteristics of fast computing speed, low power consumption, and strong scalability. Therefore, the present invention uses the Raspberry Pi 3B+ as the acquisition node to process the data collected by the sensor.

[0157] 1.1) Sensors and related hardware:

[0158] The present invention is mainly applied to the monitoring of the growth environment of crops. The sensors based on the supervisor environmental monitoring project include eight sensors including CO2, light, soil moisture, air temperature and humidity, soil salinity, wind speed and direction, rainfall, and evaporation. The above sensors can be roughly divided into three types of sensors: I 2 C-type sensors, voltage-type sensors and RS485-type sensors. I 2 C-type sensors mainly include light, air temperature and humidity sensors. Voltage sensors mainly contain CO 2 , soil moisture, soil...

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Abstract

The invention belongs to the technical field of agricultural Internet of Things equipment and information processing, and discloses an agricultural Internet of Things sensor communication method basedon a wireless network and Raspberry Pi nodes, which adopts a Raspberry Pi development platform as an acquisition node and is responsible for acquiring data of each USB interface and summarizing the data; a ZigBee protocol stack and a wireless chip are analyzed, a terminal node of a wireless sensor system is built, and a coordinator based on a USB interface is built; and the coordinator enables the UART mode to communicate with an upper computer. The wireless sensor system designed by the invention is convenient to use, and the system-on-chip of the raspberry pi platform can perform secondaryprocessing on sensor data, so that a foundation can be laid for further performing intelligent processing on sensor nodes; the wireless network protocol needs to have the characteristics of low powerconsumption, low cost, capability of supporting a large number of network nodes, safety and the like, and the two nodes can stably communicate in a short distance.

Description

technical field [0001] The invention belongs to the technical field of agricultural Internet of Things equipment and information processing, and in particular relates to a communication method for agricultural Internet of Things sensors based on a wireless network and a raspberry pie node, in particular to an agricultural IoT sensor communication method based on a ZigBee wireless network and a raspberry pie as a node. Networked sensor system and communication method. Background technique [0002] Currently, the closest prior art: [0003] Agriculture is China's basic industry. The Chinese government has always attached great importance to agricultural development, but urbanization and soil desertification have reduced the arable land area year by year. In the case that the area of ​​arable land cannot be increased, it is particularly important to increase crop yields through modern technology. [0004] However, according to many years of surveys, due to reasons such as rap...

Claims

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Application Information

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IPC IPC(8): H04W4/38G06F9/4401
CPCH04W4/38G06F9/4406Y02D30/70
Inventor 张志斌陈磊
Owner INNER MONGOLIA UNIVERSITY
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