CN210036628U - Measuring instrument for calculating plant leaf area index - Google Patents
Measuring instrument for calculating plant leaf area index Download PDFInfo
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- CN210036628U CN210036628U CN201920063328.6U CN201920063328U CN210036628U CN 210036628 U CN210036628 U CN 210036628U CN 201920063328 U CN201920063328 U CN 201920063328U CN 210036628 U CN210036628 U CN 210036628U
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Abstract
The utility model discloses a measuring instrument for calculating plant leaf area index, including photosynthetic active radiation sensor group: the device is used for collecting photosynthetic active radiation below a plant canopy and converting the photosynthetic active radiation into an electric signal; the signal filtering and amplifying module: the sensor group is used for transmitting signals to the photosynthetically active radiation sensor group; a single chip microcomputer: the acquisition function of the singlechip is activated by the upper computer through combining with a matched upper computer, and the signals transmitted by the signal filtering and amplifying module are operated; a key module: the module is used for controlling and selecting the acquisition or standby state of the singlechip; a power supply module: for each functional unit provides the required electric energy of during operation, the utility model discloses the mode that utilizes the sensor to detect replaces the detection mode that present camera lens was shot, can realize the measurement of dynamic continuity, is applicable to the measurement in great area.
Description
Technical Field
The utility model relates to a plant detection device field specifically is a measuring instrument for calculating plant leaf area index.
Background
In ecology, the leaf area index is an important structural parameter of an ecosystem, is used for reflecting the quantity of plant leaf surfaces, the structural change of a canopy layer, the life activity of a plant community and the environmental effect thereof, provides structured quantitative information for describing the surface substance and energy exchange of the plant canopy layer, plays an important role in the aspects of carbon accumulation of the ecosystem, the productivity of vegetation, the energy balance of interaction among soil, plants and atmosphere, vegetation remote sensing and the like, and is a good dynamic index for reflecting the size of a crop group. The leaf area index may be reflected in a range where crop yield increases with increasing leaf area index. When the leaf area index is increased to a certain limit, the field is closed, the illumination is insufficient, the photosynthetic efficiency is weakened, and the yield is reduced. For example, the maximum leaf area index of an apple orchard is not more than 5, and can be maintained within 3-4. In the Fuji apple orchard in the full bearing age, the branch quantity per mu in the growing period is maintained between 10 and 12 ten thousand, and the leaf area index basically can reach a relatively proper index.
There are many instruments for measuring plant leaf area index on the market at present, such as a HemiView plant canopy instrument of DELTA-T company in UK, and the measurement mode is to photograph the canopy of the upper aspect through a fisheye lens and then obtain the leaf area index through software analysis, but the measurement can only be performed at one point statically, cannot be performed dynamically, can only be performed by measuring discrete point values through multiple times, and is not suitable for large area measurement.
SUMMERY OF THE UTILITY MODEL
To the problem that exists among the background art, the utility model provides a measuring instrument for calculating plant leaf area index.
In order to achieve the above object, the utility model provides a following technical scheme: a measuring instrument for calculating a plant leaf area index, comprising:
photosynthetically active radiation sensor group: the device is used for collecting photosynthetic active radiation below a plant canopy and converting the photosynthetic active radiation into an electric signal;
the signal filtering and amplifying module: the sensor group is used for transmitting signals to the photosynthetically active radiation sensor group;
a single chip microcomputer: the acquisition function of the singlechip is activated by the upper computer through combining with a matched upper computer, and the signals transmitted by the signal filtering and amplifying module are operated;
a key module: the module is used for controlling and selecting the acquisition or standby state of the singlechip;
a power supply module: the electric energy required by the operation is provided for each functional component.
As an optimal technical scheme of the utility model, photosynthetic active sensor group includes first photosynthetic active radiation sensor, the photosynthetic active radiation sensor of second and the photosynthetic active radiation sensor of third.
As an optimized technical scheme of the utility model, still include storage module, this module is used for the storage data after the singlechip is handled.
Compared with the prior art, the beneficial effects of the utility model are that: the utility model discloses the mode that utilizes the sensor to detect replaces the detection mode that present camera lens was shot, can realize the measurement of dynamic continuity, is applicable to the measurement in great area, and overall design structure uses succinctly, has comparatively wide market prospect, facilitate promotion.
Drawings
Fig. 1 is a schematic overall structure diagram of a measuring instrument for calculating a plant leaf area index according to the present invention;
in the figure: 1-a first photosynthetically active radiation sensor; 2-a second photosynthetically active radiation sensor; 3-a third photosynthetically active radiation sensor; 4-a signal filtering and amplifying module; 5, a singlechip; 6-an upper computer; 7-a key module; 8-a storage module; 9-power supply module.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Example (b):
referring to fig. 1, the present invention provides a measuring instrument for calculating a leaf area index of a plant, including:
photosynthetically active radiation sensor group, comprising a first photosynthetically active radiation sensor 1, a second photosynthetically active radiation sensor 2 and a third photosynthetically active radiation sensor 3: the device is used for collecting photosynthetic active radiation below a plant canopy and converting the photosynthetic active radiation into an electric signal;
the signal filtering and amplifying module 4: the sensor group is used for transmitting signals to the photosynthetically active radiation sensor group;
the singlechip 5: the acquisition function of the singlechip 5 is activated by the upper computer 6 through the combination of the upper computer 6, and the signals transmitted by the signal filtering and amplifying module 4 are operated;
the key module 7: the module is used for controlling and selecting the acquisition or standby state of the singlechip 5;
the power supply module 9: the electric energy required by the operation is provided for each functional component.
In the specific implementation process, the system further comprises a storage module 8, and the storage module is used for storing the acquired data processed by the single chip microcomputer 5.
Based on the foregoing, the utility model has the advantages of: the utility model discloses the mode that utilizes the sensor to detect replaces the detection mode that present camera lens was shot, can realize the measurement of dynamic continuity, is applicable to the measurement in great area, and overall design structure uses succinctly, has comparatively wide market prospect, facilitate promotion.
The above description is only exemplary of the present invention and should not be taken as limiting the scope of the present invention, as any modifications, equivalents, improvements and the like made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.
Claims (3)
1. A measuring instrument for calculating a leaf area index of a plant, comprising:
photosynthetically active radiation sensor group: the device is used for collecting photosynthetic active radiation below a plant canopy and converting the photosynthetic active radiation into an electric signal;
the signal filtering and amplifying module: the sensor group is used for transmitting signals to the photosynthetically active radiation sensor group;
a single chip microcomputer: the acquisition function of the singlechip is activated by the upper computer through combining with a matched upper computer, and the signals transmitted by the signal filtering and amplifying module are operated;
a key module: the module is used for controlling and selecting the acquisition or standby state of the singlechip;
a power supply module: the electric energy required by the operation is provided for each functional component.
2. A measuring instrument for calculating a plant leaf area index according to claim 1, wherein: the photosynthetically active sensor group comprises a first photosynthetically active radiation sensor, a second photosynthetically active radiation sensor and a third photosynthetically active radiation sensor.
3. A measuring instrument for calculating a plant leaf area index according to claim 1, wherein: the device also comprises a storage module, and the storage module is used for storing the acquired data processed by the single chip microcomputer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920063328.6U CN210036628U (en) | 2019-01-15 | 2019-01-15 | Measuring instrument for calculating plant leaf area index |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920063328.6U CN210036628U (en) | 2019-01-15 | 2019-01-15 | Measuring instrument for calculating plant leaf area index |
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| Publication Number | Publication Date |
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| CN210036628U true CN210036628U (en) | 2020-02-07 |
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| CN201920063328.6U Active CN210036628U (en) | 2019-01-15 | 2019-01-15 | Measuring instrument for calculating plant leaf area index |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112067561A (en) * | 2020-08-25 | 2020-12-11 | 南京信息工程大学 | Handheld high-precision blade measuring instrument based on photoelectric detection method |
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2019
- 2019-01-15 CN CN201920063328.6U patent/CN210036628U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112067561A (en) * | 2020-08-25 | 2020-12-11 | 南京信息工程大学 | Handheld high-precision blade measuring instrument based on photoelectric detection method |
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