Distributed vegetable planting greenhouse monitoring system based on CAN (Controller Area Network) bus

Abstract

The invention relates to a distributed vegetable planting greenhouse monitoring system based on a CAN (Controller Area Network) bus. The distributed vegetable planting greenhouse monitoring system comprises an upper monitoring machine, a CAN host node, CAN slave codes, wherein the upper monitoring machine is responsible for receiving and managing monitoring data of each node of the system, sending a control command and displaying the dynamic parameter of each control unit and the equipment status in real time; the CAN host node is connected with the upper monitoring machine and the CAN bus, harmonizes the communication of the upper monitoring machine and each CAN node, meanwhile completes conversion of the data of the CAN bus and the data of a serial communication mode of the upper monitoring machine, and caches the data information of each CAN slave node; the CAN slave codes are intelligent monitoring modules, and each intelligent monitoring module comprises a single chip microcomputer and a CAN communication controller SJA1000 connected with the single chip microcomputer; the temperature, the humidity and the oxygen content in a system tunnel are measured and sent to the CAN bus through the CAN communication controller SJA1000; and the monitoring data is stored, is regularly uploaded to an upper computer and is polled through the upper computer.

Description

technical field [0001] The invention relates to a vegetable planting greenhouse system, in particular to a CAN bus-based distributed vegetable planting greenhouse monitoring system. Background technique [0002] At present, my country's "Vegetable Basket Project" has developed and grown, and the number of fruit and vegetable bases above the designated size is increasing year by year. However, in today's vast rural areas, due to the large investment, labor-intensive methods are often used for daily management of vegetable greenhouses. Such management The dependence on people is strong, and the quality of management often depends on the judgment of personnel experience on things, which sometimes leads to misjudgment of temperature and humidity in the greenhouse due to negligence, which affects production. In the traditional mode, a single-skin machine is also used as the controller to detect physical quantities such as temperature and humidity in the greenhouse, but the scale a...

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Problems solved by technology

[0002] At present, my country's "Vegetable Basket Project" has developed and grown, and the number of fruit and vegetable bases above the designated size is increasing year by year. However, in today's vast rural areas, due to the large investment, labor-intensive methods are often used for daily management of vegetable greenhouses. Such management Strong dependence on people, good or bad management often depends on the judgment of personnel experience on things, so sometimes due to negligence, it will cause misjudgment of temperature and humidity in the greenhouse, affecting production

In the traditional mode, a single-skin machine is also used as the controller to detect physical quantities such as temperature and humidity in the greenhouse, but the scale and function are small, and the construction of the infrastructure is repeated, and only limited data parameters for one greenhouse or several surrounding greenhouses detection, with a single function, and it is impossible to realize remote monitoring, etc.

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