Photovoltaic module-based facility fruit and vegetable rhizosphere heating and temperature control method and system
A facility, fruit and vegetable technology, which is applied in the field of photovoltaic-based facility fruit and vegetable rhizosphere heating and temperature control, can solve the problems of the PID controller having no adaptive working conditions, the PID control effect is not ideal, and the control effect is affected, so as to avoid the rhizosphere The effect of high temperature, significant heating effect and high degree of intelligence
Inactive Publication Date: 2018-09-07
BEIJING RES CENT OF INTELLIGENT EQUIP FOR AGRI
View PDF9 Cites 0 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Considering the sensitivity of plant roots to temperature, the effect of traditional PID control is not ideal, and the PID controller does not have the ability to adapt to working conditions, and cannot meet the requirements of effective self-tuning of control parameters when the system state changes, thus affecting the control effect
Method used
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
Embodiment Construction
[0026] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are the Some, but not all, embodiments are invented. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.
[0027] figure 1 The flow chart of the photovoltaic-based facility fruit and vegetable rhizosphere heating and temperature control method provided by the embodiment of the present invention, such as figure 1 As shown, the method includes:
[0028] Step 10, collecting the actual temperature of the substrate in the cultivation tank in real time;
[0029] Step 11, obtain...
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More PUM
Login to View More Abstract
The embodiments of the present invention provide a photovoltaic module-based facility fruit and vegetable rhizosphere heating and temperature control method and system. The method includes the following steps that: the actual temperature of a matrix in a cultivation tank is acquired in real time; the target temperature of the matrix is acquired; the control parameters of a PID controller are optimized according to a fuzzy algorithm on the basis of temperature difference between the actual temperature and target temperature of the matrix, so that optimized control parameters can be obtained; and the heating time of a heating belt is calculated according to the optimized control parameters, so that the heating belt heats the matrix according to the heating time, a power source required by the heating belt in heating the matrix comes from a photovoltaic power generation module. According to the method and system, the photovoltaic power supply module is adopted as a main power source for the heating belt to heat the matrix; a temperature control method integrating fuzzy control and PID adjustment is adopted to precisely control the time of the heating of the matrix by the heating belt,and therefore, the problem of too high temperature of rhizospheres caused by sensor delay can be solved. The method and system have the advantages of energy-saving performance, high efficiency, accurate temperature control and high intelligence degree.
Description
technical field [0001] The embodiments of the present invention relate to the technical field of soilless cultivation, in particular to a photovoltaic-based method and system for heating and controlling the temperature of the rhizosphere of fruits and vegetables in facilities. Background technique [0002] Soilless cultivation is a new type of horticultural production technology. It can effectively prevent the occurrence of soil continuous cropping obstacles and soil-borne diseases. It has high water and fertilizer utilization efficiency and is convenient for production management. The development of soilless cultivation in non-cultivated areas can solve the shortage of good cultivated land. , Product output is not high, poor quality and other issues. The soilless cultivation of fruits and vegetables in facilities is mainly based on solid substrate cultivation, and cultivation bags or cultivation tanks are often used to hold the substrate for production. The amount of substr...
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More Application Information
Patent Timeline
Login to View More IPC IPC(8): G05D23/20
CPCG05D23/20
Inventor 徐凡赵倩郭文忠孙维拓
Owner BEIJING RES CENT OF INTELLIGENT EQUIP FOR AGRI