CN218724356U - Photosynthetic microclimate measuring device for plant population - Google Patents
Photosynthetic microclimate measuring device for plant population Download PDFInfo
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- CN218724356U CN218724356U CN202222958623.2U CN202222958623U CN218724356U CN 218724356 U CN218724356 U CN 218724356U CN 202222958623 U CN202222958623 U CN 202222958623U CN 218724356 U CN218724356 U CN 218724356U
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Abstract
The utility model provides a plant population photosynthetic microclimate measuring device, which comprises a bracket and a plurality of sensor modules, wherein the bracket carries the sensor modules and is used for being fixed in a measuring environment; the sensor modules are respectively arranged at different heights of the support and used for monitoring microclimate data in a measuring environment. The plurality of sensor modules are respectively arranged at different heights of the bracket, so that the photosynthetic microclimate values of plant populations at different heights can be measured simultaneously; the bracket is used for fixing the plant population photosynthetic microclimate measuring device in a measuring environment, so that microclimate dynamic data at a certain position can be continuously monitored for a long time.
Description
Technical Field
The utility model relates to a plant colony photosynthesis research field especially relates to a plant colony photosynthetic microclimate measuring device.
Background
Plant population photosynthesis (also referred to as canopy photosynthesis) refers to photosynthesis at the plant population scale, and includes the sum of photosynthesis performed by all the above-ground parts, such as leaves, stems, and glumes. Fixation of CO by photosynthesis in plant populations 2 The amount has a positive correlation with plant biomass accumulation, plant carbon fixation efficiency and grain yield. Plant population photosynthesis is not only affected by photosynthetic efficiency at the level of receptor functions, but also by plant populationsThe effect of factors of the interior microclimate. The differences between the illuminance, temperature and humidity inside the plant population and the environmental values are large, and the illuminance, temperature and humidity of different leaves in the plant population also have large differences, and the changes of the differences in the vertical direction show a certain distribution rule.
Plants are planted in farmland according to a certain density, the overground part of the plants is called a plant population, and the photosynthesis of the plant population by absorbing sunlight is called population photosynthesis and is also called canopy photosynthesis. The group photosynthesis is composed of photosynthesis of all organs such as leaves, and is affected by the photosynthetic efficiency of the leaves and the microclimate in the group. The group microclimate is an environmental factor such as illuminance, temperature and humidity of each blade in the group, and the illuminance, the temperature and the humidity in the group are called group microclimate factors. The group microclimate is influenced by spatial structures such as plant type structures and the like.
The research methods for the microclimate of crop groups can be divided into two types, one is computer simulation calculation. By constructing a three-dimensional crop population structure model, the illumination absorbed by leaves in a crop population is simulated and calculated by utilizing a ray tracing algorithm and the like, and the influence of the change of a plant type structure on the population microclimate and the photosynthesis of the population can be theoretically analyzed. The computer simulation method has the advantages that virtual simulation analysis can be realized, and the contribution of different plant type characteristics to group photosynthesis can be analyzed and calculated. However, the predictive conclusions from theoretical calculations also require experimental data to prove. The other method is to carry out experimental measurement through a sensor to obtain the distribution rule of the microclimate factors in the group in the internal space of the group, and the method is more direct, convenient and rapid to obtain data. The experimental measurement method can also verify the theoretical calculation result. The technology for measuring the microclimate in the coronal layer is to hold a single sensor in a hand and place the sensor in the interior of a colony for measurement, and the measurement flux is low. Most importantly, the microclimate factors in the group are dynamically changed, and the current measurement of a single sensor or a plurality of sensors cannot realize the microclimate with different heights in the group and the long-term continuous monitoring. Therefore, it is necessary to develop a group photosynthetic microclimate measurement system for studying group photosynthesis to realize long-term monitoring of illuminance, temperature and humidity in crop groups.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a can not photosynthetic microclimate value of plant population of co-measurement co-altitude department to can monitor the device of the microclimate dynamic data of a certain position for a long time in succession.
In order to achieve the purpose, the utility model provides a plant population photosynthetic microclimate measuring device, which is characterized in that the device comprises a bracket and a plurality of sensor modules, wherein the bracket carries the sensor modules and is used for being fixed in a measuring environment; the sensor modules are respectively arranged at different heights of the support and used for monitoring microclimate data in a measuring environment.
In one or more embodiments of the plant population photosynthetic microclimate measuring device, the support comprises a vertical rod and a plurality of cross rods extending outwards from the vertical rod, each cross rod is connected to the vertical rod at different heights, and the sensor modules are arranged on the cross rods.
In one or more embodiments of the plant population photosynthetic microclimate measuring device, the cross bars are height-adjustably connected to the vertical bars, or each cross bar is rotatable about an axis of a vertical bar.
In one or more embodiments of the plant population photosynthetic microclimate measuring device, the cross bars are connected to the vertical bars equidistantly and uniformly.
In one or more embodiments of the plant population photosynthetic microclimate measuring device, the sensor module comprises a temperature and humidity sensor and/or an illumination sensor.
In one or more embodiments of the plant population photosynthetic microclimate measuring device, the sensor module comprises an illumination sensor.
In one or more embodiments of the plant population photosynthetic microclimate measuring device, the length of the cross bar is sequentially increased from top to bottom, so that the lighting of the illumination sensor at the lower layer is not shielded by the upper layer.
In one or more embodiments of the plant population photosynthetic microclimate measuring device, the support is connected to a horizontal moving mechanism.
In one or more embodiments of the plant population photosynthetic microclimate measuring device, the horizontal moving mechanism comprises a base plate and a base, wherein the base plate is provided with a guide rail, and the base plate can slide on the guide rail.
In one or more embodiments of the plant population photosynthetic microclimate measuring device, the device bottom has a stabilizer comprising a drill steel.
Because the plurality of sensor modules are respectively arranged at different heights of the bracket, the photosynthetic microclimate values of plant groups at different heights can be measured simultaneously; the bracket is used for fixing the plant population photosynthetic microclimate measuring device in a measuring environment, so that microclimate dynamic data at a certain position can be continuously monitored for a long time.
Drawings
The above and other features, properties and advantages of the present invention will become more apparent from the following description of the embodiments with reference to the accompanying drawings, in which:
FIG. 1 is a schematic diagram of an embodiment of a plant population photosynthetic microclimate measuring device.
Fig. 2 is a schematic diagram of another embodiment of a plant population photosynthetic microclimate measuring device.
Fig. 3 is a schematic diagram of the use state of the plant population photosynthetic microclimate measuring device.
The system comprises a support 110, a vertical rod 111, a cross rod 112, a sensor module 120, a light sensor 121, a temperature and humidity sensor 122, a chassis 130, a base 140 and a stabilizing part 150.
Detailed Description
The present invention will be further described with reference to the following embodiments and drawings, and more details will be set forth in the following description in order to provide a thorough understanding of the present invention, but it is obvious that the present invention can be implemented in various other ways different from those described herein, and those skilled in the art can make similar generalizations and deductions according to the actual application without departing from the spirit of the present invention, and therefore, the scope of the present invention should not be limited by the contents of the embodiments.
It should be noted that these and other subsequent figures are provided by way of example only and are not drawn to scale, and should not be construed as limiting the scope of the invention as it is actually claimed.
Fig. 1 shows a plant population photosynthetic microclimate measuring device, which comprises a bracket 110 and a plurality of sensor modules 120.
The plurality of sensor modules 120 are respectively disposed at different heights of the rack for monitoring microclimate data in a measurement environment.
The support 110 carries the sensor module 120 and is intended to be fixed in a measuring environment. The bracket 110 carries the sensor modules 120, that is, the main bodies of a plurality of sensor modules 120 are mounted on the bracket 110, and the power supply cable and/or the signal cable of each sensor module 120 are respectively arranged on the bracket 110 along the structure of the bracket 110. After the rack 110 is secured in the environment where the plants are to be measured, each sensor module 120 can measure the microclimate value at a fixed location in the environment.
And the sensor modules 120 are respectively arranged at different heights of the bracket 110 and used for monitoring the microclimate value in the measuring environment. The sensor modules 120 disposed at different heights of the support 110 can respectively and simultaneously measure the microclimate values such as temperature, humidity, illuminance and the like at the height of each sensor module 120, so as to study the photosynthesis of the plant population.
In the embodiment shown in fig. 1, the support 110 has a vertical bar 111 and a plurality of cross bars 112, each cross bar 112 carrying a sensor module 120, the cross bars 112 being connected to the vertical bar 111 at different heights.
The cross bar 112 has two ends, one of which is connected to the main body of the sensor module 120, and the connection mode may be a rivet, a screw, or the like; the other end has a clamping portion 1122 connected to the stem 111.
The clamping part is of a C-shaped opening structure, the vertical rod 111 can penetrate through the C-shaped middle space, and two sides of the C shape have certain elasticity. The C-shaped tail end is provided with a bolt and nut combination, namely, the bolt transversely penetrates through the two tail ends of the C-shaped tail end and is fixed at the tail end of the bolt through the nut. Further screwing the nut can extrude two tail ends of the C shape, so that the space in the middle of the C shape is reduced, the vertical rod 111 is clamped, and the cross rod 112 is fixed on the vertical rod. Of course, other fastening means may be used instead of a combination of bolts and nuts, such as tying the ends of the C with ties or wires, etc. The clip 1122 may be formed integrally with the end of the crossbar 112, or may be riveted, welded, or screwed to the end of the crossbar 112. When the clamping portion having a C-shaped opening structure is used, it is preferable to roughen the inner surface of the C-shaped structure contacting the vertical rod 111 and/or the outer surface of the vertical rod 111 to increase the friction force for clamping and fixing, thereby improving the fixing firmness.
Of course, instead of the clip portion 1122 having the C-shaped opening structure, other connecting members, such as cross-shaped fasteners, may be used to connect the crossbar 112 and the vertical bar 111. Alternatively, cross bar 112 may be directly connected to vertical bar 111 in a non-movable manner by welding or the like without using a connecting member, but it is preferable to connect cross bar 112 and vertical bar 111 in a movable manner.
The movable connection mode is adopted between the cross rod 112 and the vertical rod 111, so that the height of the cross rod 112 on the vertical rod 111 can be adjusted, and the measurement height can be adjusted adaptively according to the climate values of different heights or the types of the plants to be measured and the different growth stages of the plants.
Each cross bar 112 may also be arranged to be rotatable about the axis of the vertical bar 111 to facilitate changing the orientation of each cross bar to measure climate values in different directions.
The cross bars 112 are uniformly connected to the vertical bars 111 at equal intervals, so that the data measured by the sensor module 120 are uniformly distributed in height, and a user can conveniently study the data measured by the sensor module 120.
The sensor module 120 includes an illumination sensor 121 and/or a temperature and humidity sensor 122. When the photosynthesis of plant groups is studied, the illumination, temperature and humidity are three microclimate values which have great influence on the photosynthesis of plants. Each sensor module 120 converts the measured illuminance and temperature and humidity into analog signals, the analog signals are converted into digital signals by the sensor module 120 processor and transmitted to the data acquisition unit in a wired or wireless transmission mode and the like, the data acquisition unit integrates the digital signal information in each sensor module 120, the digital signal information is processed into a form of form data and stored in the data acquisition unit, and a user can transmit the processed form data files to electronic equipment such as a computer or a mobile phone for reading and research in a USB flash disk, a Bluetooth mode and the like.
The illumination sensor 121 detects the illuminance of artificial light and/or natural light. The basic principle of the light sensor 121 is that various light rays of different angles irradiate the light-sensitive elements in the light-sensitive area 121a, and the light-sensitive elements are converted into different analog electrical signals according to different light levels. The photosensitive element may be a conventional element such as a photoresistor, a photodiode, or a phototriode.
The temperature/humidity sensor 122 detects an ambient temperature/humidity. The temperature/humidity sensor 122 has a thermosensitive element and a humidity-sensitive element, and can convert different amounts of temperature and humidity in the environment into different analog electrical signals. The thermistor may be an existing element such as a thermistor or a thermocouple. The humidity sensitive element may be a conventional element such as a humidity sensitive resistor or a humidity sensitive capacitor.
The sensor module 120 preferably collects signals at the same time interval, so that the user can read, study and use the signals conveniently.
The sensor module 120 is not limited to the illumination sensor 121 and the temperature/humidity sensor 122, and may include O 2 Sensor, CO 2 Sensor, CH 4 Sensor, N 2 An O sensor, and the like.
The sensor module 120 is preferably waterproofed so that the measurement process is not affected by weather such as rainfall.
In this embodiment, the length of the cross bar 112 preferably increases from top to bottom, so that the cross bar 112 on the upper layer does not block the photosensitive area 121a of the light sensor 121 on the lower layer. For example, each sensor module 120 connected to the ends of the bars has the same length, the photosensitive area 121a is circular, the diameter of the photosensitive area is P, the length of the first bar 112 (1) located at the top and shortest is N, the maximum number of bars, i.e., the maximum number of layers of the bars is x, the length of the second bar 112 (2) located at the bottom of the first bar 112 (1) is at least N + P, the length of the third bar 112 (3) located at the bottom of the second bar 112 (2) is at least N +2P, \ 8230 \ 8230, and so on the length of the x bar 112 (x) is at least N + xP.
In the environment of natural light, the sun is a direct light source and is also the major source of illumination in the environment of plant growth. When measuring, the cross bar 112 of the device is placed towards the south, and when the sun approaches to direct light in the midday, because the length of the cross bar increases from top to bottom, the upper cross bar 112 and the sensor module 120 do not block the lower photosensitive area 121a. Therefore, when the sun or an artificial light source is positioned right above the device cross rod 112, the photosensitive area 121a of the illumination sensor 121 at the lower layer can receive an illumination signal, and the accuracy of the illumination measurement is ensured.
In the embodiment shown in fig. 1, the bottom of the vertical rod 111 is also provided with a stabilizer 150, and the stabilizer 150 can be a steel chisel, and is inserted into the soil of the field or the plant growing environment when in use, so as to fix the whole device in the environment. The steel rod may be integrally formed at the bottom of the vertical rod 111, or may be connected to the bottom of the vertical rod 111 by welding, riveting, or the like, preferably connected to the bottom of the vertical rod 111 by a movable connection means such as bolting, snap-fit connection, or the like. The stabilizer 150 may also have other configurations, such as a tripod, etc. The device is fixed in the environment, and the microclimate dynamic data of a certain position can be continuously monitored for a long time.
Fig. 2 shows another embodiment, and the present embodiment follows the element numbers and partial contents of the foregoing embodiments, wherein the same numbers are used to represent the same or similar elements, and the description of the same technical contents is optionally omitted. For the description of the omitted parts, reference may be made to the foregoing embodiments, and the description of the embodiments is not repeated. In the embodiment shown in fig. 2, the support 110 is connected to a horizontal moving mechanism, the support 110 has a vertical bar 111 and a plurality of cross bars 112, and each cross bar 112 is provided with a sensor module 120. The cross bars 112 are connected at different heights to the vertical bars 111. The bottom of the upright post 111 is connected to a base plate 130, the base plate 130 is disposed on a base 140, and the bottom of the base 140 is optionally provided with a stabilizer 150.
The base plate 130 is configured to be horizontally movable on the base 140, for example, a guide rail 141 is disposed on the base 140, and a guide wheel is correspondingly disposed on the base plate 130, so that the base plate 130 can slide on the guide rail 141, thereby driving the system composed of the bracket 110 and the sensor module 120 to move horizontally, and thus the sensor module 120 can measure microclimate data at different horizontal positions without moving the whole plant population photosynthetic microclimate measuring device, which is convenient and fast.
In order to stably stop the guide wheel at a fixed position, the guide wheel can be provided with a locking device.
The chassis 130 may be moved on the base 140 without the use of guide rollers, such as by rack and pinion or other known means.
The stabilizing parts 150 are a plurality of steel drill rods which are inserted into the soil of the field or the plant growing environment when in use so as to fix the whole plant population photosynthetic microclimate measuring device in the environment. The stabilizer 150 may also have other configurations, such as a tripod, etc.
The base 140 may further have an extension portion 142 to increase the area of the base 140, and the extension portion 142 may also have a stabilizing portion 150 such as a steel chisel, so that when the base 140 is fixed on the ground, the fixing firmness is improved.
When the grounding area of the base 140 is large enough, the bottom surface of the base 140 is placed on the ground downwards, so that the stability can be maintained, the base 140 can play a role in fixing the whole plant population photosynthetic microclimate measuring device, and the additional arrangement of the stabilizing part 150 is not needed. The device is placed on the ground to keep the whole device stable, so that the microclimate dynamic data of a certain position can be continuously monitored for a long time.
Fig. 3 shows the usage of the apparatus for measuring microclimate in a plant field, which is shown in fig. 2, wherein the apparatus is placed to face south, that is, the light-sensitive area 121a of the light sensor 121 faces south, the base 140 is placed between two rows of plants B, and a steel chisel is inserted into the soil. The chassis 130 may be moved back and forth along the base 140 to adjust the horizontal position of the sensor module 120. The height L1 from the lowest sensor to the ground should be lower than the height LB from the above ground part of the plant B and generally not higher than the height L2 from the uppermost sensor to the ground, so that it is possible to measure microclimate values including above the plant population and microclimate values at different heights inside the plant population. The device can be used for simultaneously measuring microclimate value data of a plurality of points above the plant population and at a section of positions in the plant population.
As shown in the figure, when the sunlight or the artificial light source is located at an obliquely upper position, the irradiated light R2 is not blocked by the upper sensor module 120 and the cross bar 112, and can be directly received by the photosensitive area 121a of the lower illumination sensor 121. When the sunlight or the artificial light source is located right above, because the cross rod 112 adopts a design that the length increases from top to bottom, the light ray R1 irradiated by the sunlight or the artificial light source is not shielded by the upper sensor module 120 and the cross rod 112, and can also be directly received by the photosensitive area 121a of the lower illumination sensor 121. Thereby ensuring the accuracy of the illuminance measurement of the lower-layer illumination sensor 121.
When the device for measuring the photosynthetic microclimate of the plant population in fig. 1 is adopted, the device is placed towards the south, namely the light-sensitive area 121a of the illumination sensor 121 faces the south, and the steel chisel is inserted into the field, so that the measurement of the photosynthetic microclimate value of the plant population can be completed.
The bracket 110 of the plant population photosynthetic microclimate measuring device in fig. 2 can also be taken down from the base plate 130, and a simple device is formed by directly connecting a steel chisel below the bracket 110, and the simple device is the device shown in the embodiment of fig. 1.
In the plant population photosynthetic microclimate measuring device shown in fig. 1 and 2, in order to ensure the validity of the measured data, the maximum height of the sensor module 120 of the device is not much higher than that of the plant to be measured, for example, when measuring wheat, the height of the wheat is about 0.8 m, and the maximum height of the sensor module 120 of the whole device is set to be about 1 m.
When in use, the plant population photosynthetic microclimate measuring device is positioned on the sensor modules 120 at different heights, and can simultaneously measure the photosynthetic microclimate values of the plant populations at different heights. The device is fixed in a tested area, and the microclimate dynamic data of a certain position can be continuously monitored for a long time.
Although the present invention has been described with reference to the preferred embodiments, it is not intended to limit the present invention, and those skilled in the art can make various changes and modifications without departing from the spirit and scope of the present invention. Therefore, any modification, equivalent changes and modifications made to the above embodiments according to the technical spirit of the present invention, all without departing from the content of the technical solution of the present invention, fall within the scope of protection defined by the claims of the present invention.
Claims (10)
1. A photosynthetic microclimate measuring device for plant population is characterized by comprising a bracket and a plurality of sensor modules,
the bracket carries the sensor module and is used for being fixed in a measuring environment;
the sensor modules are respectively arranged at different heights of the support and used for monitoring microclimate data in a measuring environment.
2. A plant population photosynthetic microclimate measuring device according to claim 1, wherein the support comprises a vertical post, and a plurality of cross bars extending outwardly from the vertical post, each cross bar being connected to a different height from the vertical post, the cross bars being provided with sensor modules.
3. A plant population photosynthetic microclimate measuring device according to claim 2, wherein the cross bars are height-adjustably connected to the vertical bars or each cross bar is rotatable about an axis of a vertical bar.
4. A plant population photosynthetic microclimate measuring device according to claim 2, characterized in that the cross bars are evenly connected to the vertical bars at equal intervals.
5. The plant population photosynthetic microclimate measuring device according to claim 1, wherein the sensor module comprises a temperature and humidity sensor and/or an illumination sensor.
6. A plant population photosynthetic microclimate measuring device according to claim 2, 3 or 4, characterized in that the sensor module comprises an illumination sensor.
7. A plant population photosynthetic microclimate measuring device according to claim 6, wherein the length of the cross bars increases from top to bottom in sequence so that the light sensors of the lower layer do not block the lighting from the upper layer.
8. A plant population photosynthetic microclimate measuring device according to any one of claims 1-5, wherein the support is attached to a horizontal movement mechanism.
9. The apparatus for measuring photosynthetic microclimate of plant population according to claim 8, wherein the horizontal moving mechanism comprises a base plate and a base, the base plate is provided with a guide rail, and the base plate can slide on the guide rail.
10. A plant population photosynthetic microclimate measuring device according to any one of claims 1-5, characterized in that the device bottom has stabilizers comprising steel brazes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222958623.2U CN218724356U (en) | 2022-11-07 | 2022-11-07 | Photosynthetic microclimate measuring device for plant population |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222958623.2U CN218724356U (en) | 2022-11-07 | 2022-11-07 | Photosynthetic microclimate measuring device for plant population |
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| CN218724356U true CN218724356U (en) | 2023-03-24 |
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| CN202222958623.2U Active CN218724356U (en) | 2022-11-07 | 2022-11-07 | Photosynthetic microclimate measuring device for plant population |
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- 2022-11-07 CN CN202222958623.2U patent/CN218724356U/en active Active
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