Intelligent greenhouse control system

Intelligent greenhouse control system

System Introduction:

This system can simulate basic ecological environmental factors, such as temperature, humidity, light, air pressure, solar ultraviolet rays, soil temperature and humidity, CO2 concentration, etc., to meet the needs of different plant growth and breeding. It consists of an intelligent monitoring unit that accurately measures the climate and soil parameters of the greenhouse according to preset parameters, and uses manual and automatic methods to start or stop different execution structures, control environmental control equipment such as film rolls, fan wet curtains, biological supplementary lighting, irrigation and fertilization, and automatically regulate the environment inside the greenhouse to achieve a suitable range for plant growth, providing a good environment for plant growth. The use of this system can enable the greenhouse to operate in an economical and energy-saving state, achieve unmanned and automated operation of the greenhouse, reduce greenhouse energy consumption and operating costs, provide an ideal growth environment for plants, and play a role in reducing human labor intensity, improving equipment utilization, improving greenhouse climate, reducing pests and diseases, and increasing crop yields.

Technical Specifications:

Processor:

Core: ARM 32-bit Cortex-M3 CPU

System clock: up to 72MHz

Instruction execution speed: 1.25 Dmips/MHz

Storage function:

FLASH storage capacity: 4M bits (stored every hour for 1.6 years), and can be expanded to 32Mbit

And it can expand one USB storage interface to achieve USB storage

Sensor channel:

Analog/Counting Channels: 16 channels, expandable with 16 digital I/O channels for various external expansion functions

Analog A/D conversion accuracy: 12 bits

The frequency is collected using a 16 bit high-speed counter, with an input signal frequency of up to 1MHz

Power supply display:

Wide voltage input: 8V~40V

Display format: 192 × 64 LCD screen, expandable LED monochrome screen and color touch screen

Support time calibration function

Communication function:

Equipped with RS232/RS485/USB communication interface, it can achieve RS232/RS485/USB communication without interfering with each other; And can expand one CAN bus communication interface;

communication protocol

Support XPH, standard MODBUS protocol, dual protocol switching function, convenient for users to implement secondary programming of upper computer software

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Equipment control logic

Sunshade control

Control equipment: sunshade roll film

Control element: illuminance value

Control process:

The range of standard illuminance can be set, such as upper limit T1 and lower limit T2;

Cooling and heating control

Control equipment: negative pressure fan, circulating fan, heating equipment

Control element: temperature value

Control process:

The range of standard temperature can be set, such as upper limit T1 and lower limit T2;

irrigation control

Control equipment: sprinkler system

Control element: soil moisture value

Control process:

The range of standard soil moisture can be set, such as upper limit T1 and lower limit T2;

Humidity control

Control equipment: wet curtain water pump, wet curtain rear window motor, negative pressure fan

Control element: atmospheric humidity

Control process:

The range of standard humidity can be set, such as upper limit T1 and lower limit T2;

Supplementary light control

Control device: fill light

Control element: illuminance

Control process:

The range of standard illuminance can be set, such as upper limit T1 and lower limit T2;

Features:

1. Automation: By detecting and analyzing climate parameters, the operation of equipment can be automatically controlled, energy consumption can be reduced, and the load on managers and staff can be alleviated;

2. Powerful expansion function: By selecting different peripheral devices, the greenhouse environment and irrigation, fertilization, etc. can be controlled;

3. Comprehensive data processing function: Through the central control software, various sensor information and action records of various control devices can be recorded without interruption;

4. Remote monitoring function: Even if the staff is not on site, the equipment parameters inside the greenhouse can be monitored and controlled through the remote monitoring system;

5. Data networking function: Through GPRS, various data can be connected to a local area network or the Internet, truly achieving data sharing;

6. Comprehensive data processing function: Real time data monitoring and storage, query, and export of historical data can be achieved through central control software.