Detection method and equipment based on solar single-band photon flux density model
A technology of light quantum flux and detection method, which is applied in the detection field based on the solar single-band light quantum flux density model, can solve the problems of inconvenient photosynthesis research, and the energy system cannot reflect PAR energy and biological output, etc., to achieve strong pertinence , high detection accuracy and reliable experimental data
Active Publication Date: 2013-06-12
NORTHWEST A & F UNIV
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At present, the research and development of light detection equipment mainly focus on the photometric system (unit is lx) and energetics system (unit is W / m 2 ) light detection equipment, the illuminance unit used by the photometric system cannot reflect the relationship between light and photosynthetic rate very well and has been gradually abandoned; the energetics system cannot reflect the quantitative relationship between PAR energy and biomass. The study of photosynthesis brings inconvenience; in addition, in addition to the spectrum of 400-700nm band in visible light, other specific bands of spectrum also have an irreplaceable effect on the growth of plants
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[0028] The implementation of the present invention will be described in detail below in conjunction with the drawings and examples.
[0029] Such as figure 1 As shown, it is a schematic diagram of the system of the present invention, including a power supply module, a sensor module block, a core processor module with the STC12C5A60S2 single-chip microcomputer as the core, an SD card module and other modules.
[0030] Among them, the power supply module is externally connected with a 12V adapter to supply power for the system, and two working voltages of 5V and 3.3V are obtained through the conversion of the step-down regulator module and the LM1117 module to supply power for the system, and the 5V power supply directly supplies power to the microcontroller, clock module and SD card module. The 3.3V working voltage supplies power for keys, LCD, sensor module and GPS module.
[0031] The sensor module is used to detect the real-time visible light illuminance of the environment,...
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Provided are a detection method and equipment based on a solar single-band photon flux density model. According to detection time and a geographic position, a real-time solar altitude is calculated. Total light intensity of visible light and light intensity of a specific band at different moments in different dates in a natural year are continuously measured. Then the rule that the proportion of the visible light in the specific band changes along with the solar altitude is fitted, the solar single-band photon flux density model is built based on variables including time, latitude, a band and the total light intensity of the visible light, and a specific single-band photon flux density is calculated based on the model, current time, latitude and the total intensity of the visible light. The invention further provides corresponding detection equipment which can detect the specific band photon flux density in real time and achieves data storage analysis. According to absorbing characteristics of different crops for spectra, the detection method and the equipment can confirm ranges of a detected band, is strong in pertinence, precise in detection information, and good in expansibility.
Description
technical field [0001] The invention belongs to the technical field of light intensity detection, in particular to a detection method and equipment based on a solar single-band photon flux density model. Background technique [0002] Photosynthesis is the process by which green plants convert light energy into their own chemical energy. In the study of photosynthesis, light detection and control is still a relatively weak link. At present, the research and development of light detection equipment is mainly concentrated on the photometric system (unit is lx) and energetics system (unit is W / m 2 ) light detection equipment, the illuminance unit used by the photometric system cannot reflect the relationship between light and photosynthetic rate very well and has been gradually abandoned; the energetics system cannot reflect the quantitative relationship between PAR energy and biomass. The study of photosynthesis brings inconvenience; in addition, in addition to the spectrum of...
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IPC IPC(8): G01J1/42
Inventor 张海辉梁言胡瑾樊宏攀刘正道刘翔乔俊枫贾金阳周庆珍
Owner NORTHWEST A & F UNIV
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