CN115918411A - Ecological greenhouse capable of self-adjusting water-carbon dioxide positive and negative dual cycle - Google Patents
Ecological greenhouse capable of self-adjusting water-carbon dioxide positive and negative dual cycle Download PDFInfo
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- CN115918411A CN115918411A CN202310051530.8A CN202310051530A CN115918411A CN 115918411 A CN115918411 A CN 115918411A CN 202310051530 A CN202310051530 A CN 202310051530A CN 115918411 A CN115918411 A CN 115918411A
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- 239000001569 carbon dioxide Substances 0.000 title claims abstract description 55
- 229910002092 carbon dioxide Inorganic materials 0.000 title claims abstract description 55
- 230000009977 dual effect Effects 0.000 title claims abstract description 11
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 claims abstract description 78
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 52
- 239000007787 solid Substances 0.000 claims abstract description 21
- PNWFFTWFSDDZTE-UHFFFAOYSA-N 2-aminoethanol;copper Chemical compound [Cu].NCCO PNWFFTWFSDDZTE-UHFFFAOYSA-N 0.000 claims abstract description 17
- RNLHGQLZWXBQNY-UHFFFAOYSA-N 3-(aminomethyl)-3,5,5-trimethylcyclohexan-1-amine Chemical compound CC1(C)CC(N)CC(C)(CN)C1 RNLHGQLZWXBQNY-UHFFFAOYSA-N 0.000 claims abstract description 14
- 239000007921 spray Substances 0.000 claims abstract description 10
- KXDHJXZQYSOELW-UHFFFAOYSA-N carbonic acid monoamide Natural products NC(O)=O KXDHJXZQYSOELW-UHFFFAOYSA-N 0.000 claims abstract description 8
- 230000029058 respiratory gaseous exchange Effects 0.000 claims abstract description 8
- KJAMZCVTJDTESW-UHFFFAOYSA-N tiracizine Chemical compound C1CC2=CC=CC=C2N(C(=O)CN(C)C)C2=CC(NC(=O)OCC)=CC=C21 KJAMZCVTJDTESW-UHFFFAOYSA-N 0.000 claims abstract description 8
- 238000012806 monitoring device Methods 0.000 claims description 10
- HZAXFHJVJLSVMW-UHFFFAOYSA-N 2-Aminoethan-1-ol Chemical compound NCCO HZAXFHJVJLSVMW-UHFFFAOYSA-N 0.000 claims description 8
- 229910021591 Copper(I) chloride Inorganic materials 0.000 claims description 6
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 6
- 150000004696 coordination complex Chemical class 0.000 claims description 6
- OXBLHERUFWYNTN-UHFFFAOYSA-M copper(I) chloride Chemical compound [Cu]Cl OXBLHERUFWYNTN-UHFFFAOYSA-M 0.000 claims description 6
- 239000000203 mixture Substances 0.000 claims description 6
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 5
- 238000010521 absorption reaction Methods 0.000 claims description 5
- 239000002131 composite material Substances 0.000 claims description 5
- 229910002804 graphite Inorganic materials 0.000 claims description 5
- 239000010439 graphite Substances 0.000 claims description 5
- 238000005273 aeration Methods 0.000 claims description 4
- 230000004913 activation Effects 0.000 claims description 3
- 239000008367 deionised water Substances 0.000 claims description 3
- 229910021641 deionized water Inorganic materials 0.000 claims description 3
- 238000005192 partition Methods 0.000 claims description 3
- 238000003756 stirring Methods 0.000 claims description 3
- 238000003860 storage Methods 0.000 claims description 3
- 238000010438 heat treatment Methods 0.000 claims description 2
- 238000002360 preparation method Methods 0.000 claims description 2
- 229920003023 plastic Polymers 0.000 description 13
- 238000001514 detection method Methods 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000029553 photosynthesis Effects 0.000 description 2
- 238000010672 photosynthesis Methods 0.000 description 2
- 239000002994 raw material Substances 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- JPVYNHNXODAKFH-UHFFFAOYSA-N Cu2+ Chemical compound [Cu+2] JPVYNHNXODAKFH-UHFFFAOYSA-N 0.000 description 1
- 241001465754 Metazoa Species 0.000 description 1
- 241001464837 Viridiplantae Species 0.000 description 1
- 238000012271 agricultural production Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 238000003973 irrigation Methods 0.000 description 1
- 230000002262 irrigation Effects 0.000 description 1
- 239000003446 ligand Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 244000005700 microbiome Species 0.000 description 1
- 230000008121 plant development Effects 0.000 description 1
- 230000008635 plant growth Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000008399 tap water Substances 0.000 description 1
- 235000020679 tap water Nutrition 0.000 description 1
- 230000005068 transpiration Effects 0.000 description 1
- 238000009423 ventilation Methods 0.000 description 1
Images
Classifications
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A40/00—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production
- Y02A40/10—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production in agriculture
- Y02A40/25—Greenhouse technology, e.g. cooling systems therefor
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- Cultivation Of Plants (AREA)
- Greenhouses (AREA)
Abstract
The invention discloses an ecological greenhouse capable of automatically adjusting water-carbon dioxide forward and backward dual cycle, which comprises a greenhouse body, a water circulation device and a carbon dioxide circulation device, wherein the water circulation device comprises a water inlet pipe and a water outlet pipe; the water circulation device comprises a transparent box body A, a water circulation module used for releasing water vapor in the daytime and absorbing the water vapor at night is arranged in the transparent box body A, the water circulation module is made of spongy solid copper-ethanolamine complex, and the center of the bottom of the box body A is connected with a spray water pipe; the carbon dioxide circulating device comprises a box body B, the interior of the box body B is divided into an upper part, a middle part and a lower part, a first circulating fan is arranged in the upper cavity, a second circulating fan is arranged in the lower cavity, an isophorone diamine solution is filled in the middle cavity, the second circulating fan is used for introducing carbon dioxide generated by plant respiration in the greenhouse body into the isophorone diamine solution at night to generate solid carbamic acid, and the first circulating fan is used for introducing carbon dioxide released by the solid carbamic acid into the greenhouse body to be absorbed by plants in the greenhouse body in the daytime.
Description
Technical Field
The invention relates to the technical field of greenhouses, in particular to an ecological greenhouse capable of self-regulating water-carbon dioxide positive and negative dual cycle.
Background
The greenhouse ecosystem is a system formed by the interest relationship and the dependency relationship among various plants planted in a greenhouse, various animals and microorganisms in the greenhouse and various natural factors, and the greenhouse ecosystem needs to be balanced and imitate a natural ecosystem through scientific greenhouse and ecological design to achieve the purposes of optimizing a microclimate environment and optimizing the biological ecological environment, so that the cultivation potential is promoted and exerted, the system waste and the environmental load are reduced, the ecological system mainly uses the biological ecological environment as an agricultural production environment, the control of greenhouse climate is emphasized, and the diversified microclimate is constructed and controlled from comprehensive climate environmental factors.
The ecological management of the existing ecological greenhouse mostly controls the temperature, for example, chinese patent CN216601013U discloses an ecological greenhouse capable of automatically controlling the temperature, the prior art has no management means for carbon dioxide generated in the greenhouse, and the management of the carbon dioxide is usually manual door opening ventilation, which not only needs to consume manpower, but also directly discharges the carbon dioxide into the environment and has certain influence on the greenhouse effect; in addition, the irrigation of the existing ecological greenhouse usually adopts tap water, which causes certain waste to water resources. However, carbon dioxide is a necessary raw material for photosynthesis by green plants and is also a product of plant respiration; water is a necessary raw material for plant growth and development and is also a product of plant respiration and transpiration, and both water and carbon dioxide have the possibility of recycling.
Disclosure of Invention
In order to solve the technical problems, the invention provides an ecological greenhouse capable of self-regulating water-carbon dioxide forward and backward dual cycle.
The technical scheme adopted by the invention is as follows:
an ecological greenhouse capable of self-regulating water-carbon dioxide positive and negative dual cycle comprises a greenhouse body, wherein a water circulation device and a carbon dioxide circulation device are arranged in the greenhouse body;
the water circulation device comprises a transparent box body A, transparent sliding doors are arranged on the periphery of the transparent box body A, a water circulation module used for releasing water vapor in the daytime and absorbing the water vapor at night is arranged in the transparent box body A, the water circulation module is made of spongy solid copper-ethanolamine complex, the bottom of the transparent box body A is provided with a conical body with a large top and a small bottom, the center of the bottom of the conical body is connected with a spray water pipe, and the spray water pipe is used for pouring condensed water collected in the conical body onto plants;
the carbon dioxide circulating device comprises a box body B, the box body B is internally divided into an upper cavity, a middle cavity and a lower cavity through an upper baffle plate and a lower baffle plate, the upper cavity and the lower cavity are communicated with the inner cavity of the greenhouse body through an air pipeline, a first circulating fan is arranged in the upper cavity, a second circulating fan is arranged in the lower cavity, isophorone diamine solution is filled in the middle cavity, the second circulating fan is used for introducing carbon dioxide generated by respiration of plants in the greenhouse body into the isophorone diamine solution at night to generate solid carbamic acid, and the first circulating fan is used for introducing carbon dioxide released by the solid carbamic acid into the greenhouse body to be absorbed by plants in the greenhouse body in the daytime.
Furthermore, four outer side walls of the middle cavity are coated with graphite composite heat absorption films.
Furthermore, the transparent sliding door is slidably arranged on a rail through rollers, the rail is fixed on a doorframe of the box body, and the rollers are driven by a motor to roll on the rail.
Further, big-arch shelter body shed roof is equipped with photovoltaic cell board, photovoltaic cell board links to each other with the battery, the battery is used for supplying power for motor, first circulating fan and second circulating fan.
Further, the water circulation module is supported at the center of the transparent box body A through an internal bracket in an exposed manner.
Further, the outlet of the second circulating fan is communicated with the middle cavity through an aeration pipe.
Furthermore, the upper clapboard is provided with a plurality of exhaust holes for communicating the upper cavity body and the middle cavity body.
Furthermore, a carbon dioxide monitoring device and a temperature monitoring device are arranged in the greenhouse body.
Further, the preparation method of the spongy solid copper-ethanolamine complex comprises the following steps:
(1) CuCl is put in an ultrasonic bath 2 Dissolving in ethanol, stirring, and adding ethanolamine dropwise into CuCl 2 To obtain a coordination complex;
(2) Adding deionized water into the coordination complex for activation to obtain a mixture;
(3) And pouring the mixture into a culture dish, and heating to obtain the spongy solid copper-ethanolamine complex.
The invention has the beneficial effects that:
1. the invention is provided with the water circulation device, the water transpired by the plants and the soil can be absorbed by the copper-ethanolamine complex in the water circulation device at night, and the copper-ethanolamine complex releases absorbed water vapor to irrigate the plants again when the sunlight irradiates in the daytime, thereby realizing water circulation.
2. The device is provided with the carbon dioxide circulating device, so that carbon dioxide generated by plant respiration can be absorbed by isophorone diamine in the carbon dioxide circulating device at night, and the carbon dioxide is analyzed and supplied to the plant again for photosynthesis when the temperature is increased in the daytime, thereby realizing carbon dioxide circulation.
3. The carbon dioxide circulating device adopts the graphite composite heat absorption film for heat supply, thereby saving energy.
4. The photovoltaic cell panel is adopted on the roof of the ecological greenhouse, so that solar energy can be converted into electric energy in sunny days and stored in the storage battery, and energy is saved.
Drawings
Fig. 1 is a schematic structural view of the ecological greenhouse of the present invention.
Fig. 2 is a schematic view of the internal structure of the water circulation device of the present invention.
Fig. 3 is an external structural view of the water circulation device of the present invention.
Fig. 4 is a schematic configuration diagram of a carbon dioxide circulation device of the present invention.
Detailed Description
The invention is further described below with reference to specific examples to facilitate the understanding of the invention, but the invention is not limited thereby.
Example 1
The embodiment provides an ecological greenhouse capable of self-adjusting water-carbon dioxide positive and negative dual cycle, which comprises a greenhouse body 1, a water circulating device 2, a carbon dioxide circulating device 3 and a power supply and detection device.
The water circulation devices 2 can be arranged on a plurality of passageways in the middle of crop planting areas in the greenhouse, the specific number is determined according to the area of the greenhouse, and one water circulation device is preferably arranged in about 10 square meters. The carbon dioxide circulating devices 3 are arranged close to the outer wall of the greenhouse, the specific number is determined according to the area of the greenhouse, and one carbon dioxide circulating device is preferably arranged in about 50 square meters.
The water circulation device 2 comprises a transparent plastic box body 21 supported on the bottom surface through an external support 24, a water circulation module 23 made of spongy solid copper-ethanolamine complex is supported at the central part in the transparent plastic box body 21 through an internal support 22, transparent plastic doors 27 are arranged on the periphery of the transparent plastic box body 21, the plastic doors 27 are arranged on a track 26 fixed on a box door frame through rollers 28, the rollers 28 are driven to rotate by a motor 29 arranged on the transparent plastic box body 21, the motor 29 controls the opening and closing of the transparent plastic doors 27, the bottom of the plastic transparent box body 21 is provided with a conical body with a large upper part and a small lower part, the center of the bottom of the conical body is connected with a spray water pipe 25, the bottom of the spray water pipe 25 is connected with spray branch pipes, and spray holes are formed in the spray branch pipes.
The spongy solid copper-ethanolamine complex 23 can be prepared by the following steps:
(1) 0.8mmol of CuCl in an ultrasonic bath 2 Dissolving in ethanol, stirring, and adding 0.4mmol ethanolamine dropwise into CuCl 2 In the solution, a coordination complex is obtained through unsaturated coordination of ethanolamine ligand and copper (II) ions;
(2) Then adding deionized water into the coordination complex for activation to obtain a mixture;
(3) The mixture was poured into a petri dish and heated at 65 ℃. During this process, the color gradually changed from light green to dark brown; after 15 minutes, a brown spongy solid copper-ethanolamine complex was obtained.
The spongy solid copper-ethanolamine complex is cut into a cubic shape, the internal support 22 is wrapped on four sides of the cubic spongy solid copper-ethanolamine complex, the internal support 22 is connected to the corner of the transparent plastic box 21, and the spongy solid copper-ethanolamine complex is exposed inside the transparent plastic box 21.
The working principle of the water circulation device 2 is as follows:
when the plants do not need to be irrigated at night, the motor 29 opens the transparent plastic door 27 through the control roller 28, and the copper-ethanolamine complex 23 is exposed outside and used for absorbing water vapor generated by the respiration and evaporation of the plants in the greenhouse;
in the daytime, the motor 29 closes the transparent plastic door 27, and due to the rise in temperature, moisture is released from the copper-ethanolamine complex 23, condenses on the inner wall surface of the transparent plastic outer case 21, and finally flows into the shower pipe 25 connected to the cone for irrigating plants.
The carbon dioxide circulating device 3 comprises a box body B, the box body B is internally divided into an upper cavity 31, a middle cavity 32 and a lower cavity 33 through an upper partition plate and a lower partition plate, the upper cavity 31 and the lower cavity 33 are respectively communicated with the inner cavity of the greenhouse body 1 through a ventilating pipeline 28, a first circulating fan 31 is arranged in the upper cavity 31, a second circulating fan 36 is arranged in the lower cavity 33, and isophorone diamine solution is filled in the middle cavity 33. The four outer side walls of the middle cavity 33 are coated with graphite composite heat absorption films 35. The isophorone diamine solution is purchased from the market, and in this example, the isophorone diamine solution is purchased from Tokyo chemical industry Co., ltd. The upper baffle plate is provided with a plurality of vent holes 371 which are communicated with the upper cavity 31 and the middle cavity 32. The outlet of the second circulation fan 36 is communicated with the middle cavity through an aeration pipe 37. The aeration pipe 37 can uniformly introduce the gas discharged from the second circulating fan 36 into the isophorone diamine solution, thereby improving the reaction efficiency of carbon dioxide and isophorone diamine.
The working principle of the carbon dioxide circulation device 3 is as follows:
at night, the second circulating fan 36 collects gas inside the greenhouse body, and carbon dioxide generated by plant respiration in the greenhouse body is introduced into the isophorone diamine solution to generate solid carbamic acid;
in daytime, the isophorone diamine solution absorbs heat through the graphite composite heat absorption film 33, the temperature is increased, the solid carbamic acid releases carbon dioxide, and the first circulating fan 31 introduces the carbon dioxide gas into the greenhouse body 1 to be absorbed by plants.
Power supply and detection device include photovoltaic cell board 11, battery 12, temperature monitoring device 41 and carbon dioxide concentration monitoring device 42, photovoltaic cell board 11 sets up the top surface at big-arch shelter body 1, turn into the electric energy with solar energy and save in battery 12, battery 12 is used for motor 29, first circulating fan 31 and the power supply of second circulating fan 36, temperature monitoring device 41 is located on the lateral wall of big-arch shelter body 1 for detect the inside temperature variation of big-arch shelter body 1. The carbon dioxide concentration monitoring device 42 is arranged on the side wall of the box body B and used for detecting the carbon dioxide concentration change condition inside the greenhouse body 1. The temperature monitoring device 41 and the carbon dioxide concentration monitoring device 42 are both conventional.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that those skilled in the art can make various improvements and modifications without departing from the principle of the present invention, and the improvements and modifications are also within the protection scope of the present invention.
Claims (9)
1. An ecological greenhouse capable of self-adjusting water-carbon dioxide positive and negative dual cycle comprises a greenhouse body (1), and is characterized in that a water circulating device (2) and a carbon dioxide circulating device (3) are arranged in the greenhouse body (1);
the water circulation device (2) comprises a transparent box body A (21), transparent sliding doors (27) are arranged on the periphery of the transparent box body A (21), a water circulation module (23) used for releasing water vapor in the daytime and absorbing the water vapor at night is arranged inside the transparent box body A, the water circulation module (23) is made of a spongy solid copper-ethanolamine complex, the bottom of the transparent box body A (21) is a conical body with a large upper part and a small lower part, a spray water pipe (25) is connected to the center of the bottom of the conical body, and the spray water pipe (25) is used for irrigating condensed water collected in the conical body onto plants;
carbon dioxide circulating device (3) includes box B, separate for last cavity (31) through two upper and lower baffles in the box B, well cavity (32) and lower cavity (33), go up cavity (31) and lower cavity (33) and all communicate through air pipe (38) and big-arch shelter body (1) inner chamber, be equipped with first circulating fan (34) in last cavity (31), be equipped with second circulating fan (36) in lower cavity (33), the filling has isophorone diamine solution in well cavity (32), second circulating fan (36) are arranged in letting in the isophorone diamine solution with the carbon dioxide that the plant respiration produced in big-arch shelter body (1) at night and generate solid carbamic acid, carbon dioxide that first circulating fan (34) released solid carbamic acid when being used for the day is let in big-arch shelter body (1) and is absorbed by the plant.
2. The ecological greenhouse capable of self-regulating water-carbon dioxide forward and backward dual circulation according to claim 1, wherein four outer side walls of the middle cavity (32) are coated with graphite composite heat absorption films (33).
3. The ecological greenhouse capable of self-regulating water-carbon dioxide forward and backward double circulation according to claim 1, wherein the transparent sliding door (27) is slidably arranged on a track (26) through a roller (28), the track (26) is fixed on a doorframe of the greenhouse, and the roller (28) is driven by a motor (29) to roll on the track (26).
4. The ecological greenhouse capable of self-regulating water-carbon dioxide forward and backward double circulation is characterized in that a photovoltaic cell panel (11) is arranged on the roof of the greenhouse body (1), the photovoltaic cell panel (11) is connected with a storage battery (12), and the storage battery (12) is used for supplying power to the motor (29), the first circulating fan (34) and the second circulating fan (36).
5. The ecological greenhouse capable of self-regulating water-carbon dioxide forward and backward double circulation according to claim 1, characterized in that the water circulation module (23) is supported in the center of the transparent box body A (21) through an internal support (22) in an exposed manner.
6. The ecological greenhouse capable of self-regulating water-carbon dioxide forward and backward double circulation according to claim 1, characterized in that the outlet of the second circulating fan (36) is communicated with the middle cavity (32) through an aeration pipe (37).
7. The ecological greenhouse capable of self-regulating water-carbon dioxide forward and backward double circulation according to claim 1, wherein the upper partition is provided with a plurality of exhaust holes (371) for communicating the upper cavity (31) and the middle cavity (32).
8. The ecological greenhouse capable of self-regulating water-carbon dioxide forward and backward dual circulation according to claim 1, wherein a carbon dioxide monitoring device (42) and a temperature monitoring device (41) are arranged in the greenhouse body (1).
9. The ecological greenhouse capable of self-regulating water-carbon dioxide forward and backward dual cycles as claimed in claim 1, wherein the preparation method of the spongy solid copper-ethanolamine complex (23) comprises the following steps:
(1) Adding CuCl in ultrasonic bath 2 Dissolving in ethanol, stirring, and adding ethanolamine dropwise into CuCl 2 To obtain a coordination complex;
(2) Adding deionized water into the coordination complex for activation to obtain a mixture;
(3) And pouring the mixture into a culture dish, and heating to obtain the spongy solid copper-ethanolamine complex.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310051530.8A CN115918411A (en) | 2023-02-02 | 2023-02-02 | Ecological greenhouse capable of self-adjusting water-carbon dioxide positive and negative dual cycle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310051530.8A CN115918411A (en) | 2023-02-02 | 2023-02-02 | Ecological greenhouse capable of self-adjusting water-carbon dioxide positive and negative dual cycle |
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| Publication Number | Publication Date |
|---|---|
| CN115918411A true CN115918411A (en) | 2023-04-07 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202310051530.8A Pending CN115918411A (en) | 2023-02-02 | 2023-02-02 | Ecological greenhouse capable of self-adjusting water-carbon dioxide positive and negative dual cycle |
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| Country | Link |
|---|---|
| CN (1) | CN115918411A (en) |
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-
2023
- 2023-02-02 CN CN202310051530.8A patent/CN115918411A/en active Pending
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