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Distributed greenhouse environment information storage system based on I2C (Inter-Integrated Circuit) bus

An environmental information and distributed technology, applied in the field of distributed greenhouse environmental information storage system, can solve the problems of complex hardware structure and increased software programming difficulty.

Inactive Publication Date: 2011-01-12
SOUTHWEST UNIVERSITY
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  • Abstract
  • Description
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Problems solved by technology

[0004] The use of CAN bus to realize the communication between multiple microprocessors in the greenhouse environment information storage system has the following problems: the hardware structure of the independent CAN controller is relatively complicated, and the corresponding CAN controller and transceiver need to be configured for each microprocessor connected , which makes the hardware structure of the system complicated; the hardware structure of the microcontroller with on-chip CAN is relatively simple, but it needs to write the user program and the CAN bus communication protocol on a microprocessor, and the difficulty of software programming increases

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  • Distributed greenhouse environment information storage system based on I2C (Inter-Integrated Circuit) bus
  • Distributed greenhouse environment information storage system based on I2C (Inter-Integrated Circuit) bus

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Embodiment Construction

[0010] The present invention is further illustrated by the following examples, but should not be construed as a limitation of the present invention.

[0011] A distributed greenhouse environment information storage system based on I2C bus is composed of microprocessor, sensor module, GSM module, I2C bus and storage module. Such as figure 1 As shown, microprocessors 2-5 respectively complete soil temperature and humidity, air temperature and humidity, light intensity and CO 2 Concentration detection, microprocessor 0 controls through the I / O port each time only one microprocessor can write data into the storage module FM31256; microprocessor 0 monitors the connection with microprocessor 1 at the same time: when the GSM module receives After querying the message, the pin becomes high level, at this time, microprocessor 0 stops the reading of FM31256 by microprocessor 2-5, and microprocessor 1 reads the internal value of FM31256, and sends it to the user through the GSM module ...

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Abstract

The invention relates to a distributed greenhouse environment information storage system based on an I2C bus, which comprises a microprocessor, a sensor module, a GSM (Global System for Mobile Communications) module, the I2C bus and a storage module; and a data sharing system is designed specially for the storage of greenhouse environment information, a special CAN (Control Area Network) bus device is omitted, meanwhile, a distributed structure is adopted, and complicated tasks are dispersed onto a plurality of low-end 8-bit or 16-bit microprocessors to be finished, thereby lowering the difficulty of software development and shortening the development cycle.

Description

technical field [0001] The invention relates to the technical field of facility agriculture, in particular to an I2C bus-based distributed greenhouse environment information storage system. Background technique [0002] The greenhouse environment information storage system needs to detect air temperature and humidity, soil temperature and humidity, CO 2 Environmental information such as concentration and light intensity are stored for future analysis and research. Due to the large number of peripheral sensors in the system, the types of which include both analog and digital, and also involve memory chips, it is difficult to handle them with a single microprocessor, and it is necessary to solve them when using multiple microprocessors to work together. Multilevel communication problem between. The traditional way is to adopt "master-slave", which limits the function and wide application of the microprocessor. [0003] With the wide application of CAN bus and the maturity o...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G05B19/418G11C11/22
CPCY02P90/02
Inventor 赵虎王三根吴达科王纪元
Owner SOUTHWEST UNIVERSITY
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