A smart home vegetable planting device and an environment control method

Abstract

The application discloses a kind of family intelligent vegetable planting device and environment control method, belong to intelligent agricultural technology field.Device includes planting cabin, multi-source power supply unit, energy storage unit, exhalation collection unit, CO2 enrichment module, gas processing unit, carbon dioxide delivery pipeline and collaborative controller.Exhaled carbon dioxide is collected by exhalation collection unit, concentration is improved by enrichment module, and after being purified by processing unit, it is transported to planting cabin.Collaborative controller automatically executes three-level power supply scheduling by detecting output current or voltage, adjusts LED light supplement brightness according to real-time power generation power, and simultaneously adjusts CO2 concentration target interval according to plant variety and growth cycle.

Description

Technical Field

[0001] This invention relates to the field of intelligent agriculture and home planting equipment technology, specifically to a home intelligent vegetable planting device and environmental control method, which is particularly suitable for indoor vegetable planting scenarios in urban homes. Background Technology

[0002] With accelerated urbanization and increased awareness of food safety, indoor vegetable growing equipment for home use is becoming increasingly popular. However, existing home growing equipment faces three core challenges: First, the operating energy consumption is high. Environmental control equipment such as LED supplemental lighting devices and nutrient solution circulating water pumps require continuous power consumption, and electricity costs have become a major obstacle to the popularization of home gardening equipment.

[0003] Secondly, the source of carbon dioxide fertilizer is limited. Carbon dioxide is a raw material for plant photosynthesis, and appropriate application of carbon dioxide fertilizer can increase fruit and vegetable yields by 15% to 30% and shorten the production period by 7 to 10 days. However, industrial-grade carbon dioxide cylinders are expensive and pose safety hazards, making them unsuitable for home use.

[0004] Third, the intermittent nature of human movement leads to discontinuous gas supply and unstable power supply. The concentration of carbon dioxide in human exhaled air is about 38,000 to 40,000 ppm, which is 100 times that of ambient air (about 400 ppm). However, human movement is intermittent, and there is no source of carbon dioxide gas after the movement stops. At the same time, the power generated by human power generation fluctuates drastically with the intensity of movement. Directly supplying power to loads such as LED supplemental lighting will cause the light to flicker or be unstable.

[0005] In the prior art, Chinese patent CN204670142U discloses a "fitness-powered aquaponics system," which uses fitness equipment to generate electricity to power aquaponics components; Korean patent KR1020130014097A discloses a "plant cultivation system using sports equipment," which utilizes the waste kinetic energy of rotating parts to achieve home plant cultivation. However, these solutions only solve the problem of electricity source; the carbon dioxide required for planting still needs to be supplied externally, and they do not resolve the contradiction between the intermittent nature of human-powered electricity generation and the continuous electricity demand of plants.

[0006] In addition, although there are existing technologies that provide solutions for fitness equipment to compensate for mains power through current detection, none of them have been integrated with the CO2 fertilization system in home vegetable growing devices. Summary of the Invention

[0007] (a) Technical problems to be solved To address the aforementioned shortcomings of existing technologies, this invention provides a home-based intelligent vegetable growing device and environmental control method, aiming to solve the following technical problems: 1. The problem of high electricity costs for operating home gardening equipment; 2. The problem of limited sources of carbon dioxide fertilizer in household settings; 3. The intermittent nature of human movement leads to problems such as discontinuous gas supply and unstable power supply; 4. Fluctuations in human-generated power output lead to unstable LED supplemental lighting; 5. The problem of not being able to intelligently switch between different power sources to achieve the "human power priority, mains power as a backup" scheduling strategy.

[0008] (II) Technical Solution Regarding the device, this invention provides a home intelligent vegetable growing device, comprising: The planting chamber (100) is equipped with a planting rack (110) and an LED supplemental lighting device (120). The multi-source power supply unit includes a human kinetic energy acquisition subunit (200) and an external power interface. The human kinetic energy acquisition subunit (200) is configured to convert the mechanical energy generated by human movement into electrical energy, and the external power interface is configured to connect to an external power source. The energy storage unit (300) is electrically connected to the multi-source power supply unit; The exhalation collection unit (400) is configured to collect carbon dioxide-containing gas exhaled by a human body; The CO2 enrichment module (450) is connected to the exhalation collection unit (400) and is configured to increase the concentration of carbon dioxide in the collected human exhaled gas before outputting it. The gas processing unit (500) is connected to the CO2 enrichment module (450) and is provided with at least one of a dehumidification module, a filtration module and a sterilization module along the airflow direction; A carbon dioxide delivery pipeline (600) connects the gas processing unit (500) to the planting chamber (100). The collaborative controller (700) is signal-connected to the multi-source power supply unit, the energy storage unit (300), the LED supplementary lighting device (120), and the carbon dioxide delivery pipeline (600), and is configured as follows: —Detect the output current or output voltage of the human kinetic energy acquisition subunit (200); —When the output current or output voltage is greater than or equal to the first preset value, the human kinetic energy acquisition subunit (200) is used to power the system and charge the energy storage unit (300) in the first place. —When the output current or output voltage is less than the first preset value but greater than or equal to the second preset value, the energy storage unit (300) supplies power to the system; —When the voltage or power of the energy storage unit (300) is lower than the third preset value, the system is automatically switched to the external power interface to supply power and to charge the energy storage unit (300); — Adjust the brightness of the LED supplementary lighting device (120) according to the real-time power generation of the human kinetic energy acquisition subunit (200).

[0009] In terms of method, this invention provides a method for controlling the home intelligent vegetable growing environment, including the following steps: S1: Collects the mechanical energy generated by human movement, converts it into electrical energy, and stores it; S2: Collects carbon dioxide-containing gas exhaled by the human body; S3: Perform carbon dioxide concentration enhancement treatment on the collected exhaled gas; S4: Dehumidify, filter, and sterilize the gas after concentration enhancement; S5: The treated gas is delivered to the planting chamber; S6: Detects the output current or output voltage generated during the human kinetic energy harvesting process; S7: Perform three-level power supply scheduling based on the output current or output voltage: —When the output current or output voltage is greater than or equal to the first preset value, the electrical energy generated by human movement is used to directly supply power and charge the energy storage unit at the same time. —When the output current or output voltage is less than the first preset value but greater than or equal to the second preset value, the energy storage unit provides power. —When the voltage or charge of the energy storage unit is lower than the third preset value, it will automatically switch to external power supply and charge the energy storage unit. S8: Adjusts the LED fill light brightness according to the real-time power generation generated by human movement.

[0010] S9: Dynamically adjusts the target range of carbon dioxide concentration in the planting chamber according to the plant species and growth cycle selected by the user.

[0011] (III) Beneficial Effects 1. Optimized operating costs. Through three-level power dispatch, priority is given to using zero-cost human-powered generation. When human power is insufficient, energy storage serves as a buffer. When energy storage is insufficient, the system automatically switches to grid power as a backup, ensuring uninterrupted equipment operation while minimizing electricity costs.

[0012] 2. CO2 enrichment enhances photosynthetic efficiency. Through membrane separation, adsorption enrichment, buffer enrichment, or selective collection, the CO2 concentration in human exhaled air is further increased, resulting in a higher concentration of photosynthetic nutrients entering the planting chamber and higher photosynthetic efficiency.

[0013] 3. Source-load linkage to avoid energy waste. The brightness of the supplemental lighting automatically adjusts according to the amount of human power generation, achieving dynamic matching of "how much human activity, how much light is turned on".

[0014] 4. Adaptive gas supply. The CO2 concentration target value is dynamically adjusted according to different plant varieties and growth cycles to avoid waste or insufficiency of gas and fertilizer caused by a "one-size-fits-all" approach, thus achieving precise gas and fertilizer management.

[0015] 5. Safe and clean gas. Triple purification through condensation dehumidification, HEPA filtration, and UV sterilization ensures that the gas entering the planting chamber is sterile and dry. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of Embodiment 1 of the present invention.

[0017] Figure 2 This is a flowchart of the collaborative control logic of Embodiment 1 of the present invention.

[0018] The component names corresponding to each mark in the diagram are as follows: 100 - Planting container; 110 - Planting rack; 120 - LED supplemental lighting device; 200—Human kinetic energy harvesting subunit; 210—Mechanical transmission interface; 220—Generator; 230—Inertia wheel; 300—Energy storage unit; 400—Exhalation sampling unit; 410—Sampling port; 420—Air delivery tube; 450—CO2 enrichment module; 500—Gas processing unit; 510—Condensation and dehumidification module; 520—HEPA filter module; 530—UV sterilization module; 600—Carbon dioxide delivery pipeline; 700—Cooperative Controller; 800—DAC unit. Detailed Implementation Example 1

[0019] like Figure 1 As shown, the home intelligent vegetable planting device of this embodiment includes a planting chamber (100), a multi-source power supply unit (including a human kinetic energy acquisition subunit 200 and an external power interface), an energy storage unit (300), an exhalation acquisition unit (400), a CO2 enrichment module (450), a gas processing unit (500), a carbon dioxide delivery pipeline (600), a collaborative controller (700), and a DAC unit (800).

[0020] The planting compartment (100) is a vertical cabinet structure with three layers of three-dimensional planting racks (110) inside, and an LED supplementary lighting device (120) is installed above each layer of planting racks.

[0021] The multi-source power supply unit includes a human kinetic energy harvesting subunit (200) and an external power interface. The human kinetic energy harvesting subunit (200) includes a mechanical transmission interface (210), a generator (220), and an inertial wheel (230). The mechanical transmission interface (210) is a universal interface that can be adapted to various human exercise equipment such as exercise bikes, treadmills, rowing machines, hand-cranked generators, or steppers. The mechanical transmission interface (210) is connected to the rotor of the generator (220) to convert the mechanical energy generated by human movement into electrical energy. The inertial wheel (230) is coaxially fixedly connected to the rotor of the generator (220) and is configured to store rotational kinetic energy and release kinetic energy to smooth rotational speed fluctuations when the intensity of exercise fluctuates. The external power interface is configured to connect to at least one of AC mains power, solar photovoltaic panels, or wind turbines.

[0022] The energy storage unit (300) is electrically connected to the multi-source power supply unit. The energy storage unit (300) is a hybrid energy storage module of supercapacitor and lithium battery. The supercapacitor is configured to buffer instantaneous pulse current, and the lithium battery is configured to provide continuous and stable power supply.

[0023] The exhalation collection unit (400) is located outside the implantation chamber (100) and has a collection port (410) for the user to exhale. The collection port (410) is connected to the CO2 enrichment module (450) through an air duct (420). The exhalation collection unit (400) is a wearable breathing mask or a near-field gas collection mask.

[0024] The CO2 enrichment module (450) is connected to the exhalation collection unit (400) and configured to increase the concentration of carbon dioxide in the collected human exhaled gas before outputting it. In one implementation, the CO2 enrichment module (450) includes a membrane separation component equipped with a CO2 selectively permeable membrane, allowing CO2 in the exhaled gas to preferentially permeate through the membrane layer, while non-CO2 gases are blocked from emission. In another implementation, the CO2 enrichment module (450) includes an adsorption unit filled with CO2 adsorption material, which adsorbs CO2 in the exhaled gas and then desorbs and releases it through heating or depressurization. In yet another implementation, the CO2 enrichment module (450) is a buffer chamber that temporarily stores multiple exhaled gases, allowing CO2 to accumulate naturally. In yet another implementation, the CO2 enrichment module (450) includes a CO2 concentration sensor and a diverter valve, which detects the CO2 concentration in the exhaled airflow in real time and only collects mid-range exhaled gas with a concentration higher than a preset value.

[0025] The gas processing unit (500) is connected to the CO2 enrichment module (450), and a condensation dehumidification module (510), a HEPA filter module (520), and a UV sterilization module (530) are arranged sequentially along the airflow direction. The condensation dehumidification module (510) includes a semiconductor cooling chip and a baffle plate condenser, removing approximately 90% of the water vapor. The HEPA filter module (520) has a filtration efficiency of ≥99.97%. The UV sterilization module (530) has a built-in UV-C band ultraviolet lamp with a sterilization rate of ≥99.9%.

[0026] The carbon dioxide delivery pipeline (600) connects the gas processing unit (500) to the planting chamber (100).

[0027] The DAC unit (800) is connected to a carbon dioxide delivery line (600) and includes an adsorption bed filled with carbon dioxide adsorption material and a desorption trigger, configured to capture and store carbon dioxide from ambient air and release the stored carbon dioxide to the planting chamber (100) upon triggering.

[0028] The coordinating controller (700) is signal connected to the multi-source power supply unit, the energy storage unit (300), the LED supplementary lighting device (120), and the carbon dioxide delivery pipeline (600).

[0029] like Figure 2 As shown, the cooperative controller (700) executes the following control logic: The output current or output voltage of the human kinetic energy acquisition subunit (200) is detected. When the output current or output voltage is greater than or equal to the first preset value, it is determined that the human power generation is sufficient, and the human kinetic energy acquisition subunit (200) is used to supply power to the system and charge the energy storage unit (300) at the same time.

[0030] When the output current or output voltage is less than the first preset value but greater than or equal to the second preset value, it is determined that the human power generation is insufficient but there is still output. The energy storage unit (300) supplies power to the system, and the human kinetic energy acquisition subunit (200) continues to charge the energy storage unit (300).

[0031] When the voltage or charge of the energy storage unit (300) is lower than the third preset value, it is determined that the energy storage is insufficient, and the system is automatically switched to the external power interface to supply power. At the same time, the energy storage unit (300) is charged to ensure that the equipment can run continuously without stopping. The third preset value is higher than the discharge termination voltage of the energy storage unit (300) to ensure that the switching is completed before the energy storage unit is completely depleted, so as to achieve uninterrupted power supply.

[0032] The brightness of the LED supplementary lighting device (120) is adjusted according to the real-time power generation of the human kinetic energy acquisition subunit (200). The supplementary lighting brightness is increased synchronously when the power generation increases, and decreased synchronously when the power generation decreases.

[0033] When the human body moves, the exhaled gas is collected by the exhalation collection unit (400), the concentration is increased by the CO2 enrichment module (450), the gas is purified by the gas processing unit (500), and then transported to the implantation chamber (100) through the carbon dioxide delivery pipeline (600).

[0034] When the human body stops moving, the desorption trigger of the DAC unit (800) is activated, releasing the stored carbon dioxide into the implantation chamber (100).

[0035] When the output current or output voltage of the human kinetic energy acquisition subunit (200) is zero and the duration exceeds the preset threshold, the LED supplementary lighting device (120) is controlled to enter the low power standby mode. Example 2

[0036] The difference between this embodiment and Embodiment 1 is that the CO2 enrichment module (450) includes a membrane separation component. This membrane separation component has a CO2 selectively permeable membrane, which is a fixed-site carrier membrane with amine groups on its surface. When exhaled gas passes through the membrane component under pressure, CO2 molecules preferentially permeate through the membrane layer into the permeate side, while non-CO2 gases such as N2 and O2 are blocked and emitted on the non-permeate side. The CO2 concentration on the permeate side is higher than the original exhaled gas concentration and is then sent to the gas treatment unit (500) for subsequent purification. Example 3

[0037] The difference between this embodiment and Embodiment 1 is that the CO2 enrichment module (450) includes an adsorption unit filled with CO2 adsorption material (such as activated carbon fiber, molecular sieve, or metal-organic framework material). When exhaled gas passes through the adsorption unit, CO2 is captured by the adsorption material, while non-CO2 gases are directly emitted. After adsorption saturation, CO2 is desorbed and released by electric heating or depressurization. The concentration of released CO2 is higher than the original concentration of exhaled gas, and it is then sent to the gas treatment unit (500). Example 4

[0038] The difference between this embodiment and Embodiment 1 is that the CO2 enrichment module (450) is a buffer chamber. The buffer chamber is a sealed cavity with a volume of 1-5 liters. The buffer chamber temporarily stores multiple exhaled gases, allowing CO2 to accumulate naturally within the buffer chamber, and the concentration gradually increases before being sent to the gas processing unit (500). Example 5

[0039] The difference between this embodiment and Embodiment 1 is that the CO2 enrichment module (450) includes a CO2 concentration sensor and a diversion valve. The CO2 concentration sensor detects the CO2 concentration in the exhaled airflow in real time. When the concentration is higher than a preset value (e.g., 30,000 ppm), the diversion valve opens the collection channel; when the concentration is lower than the preset value, the diversion valve closes the collection channel. This achieves the goal of collecting only the middle section of the exhaled air with the highest CO2 concentration, avoiding the low-concentration gas at the beginning and end. Example 6

[0040] The difference between this embodiment and Embodiment 1 is that the human kinetic energy harvesting subunit (200) also includes an inertial wheel (230). The inertial wheel (230) is coaxially and fixedly connected to the rotor of the generator (220). When the user moves, the inertial wheel (230) accelerates its rotation to store kinetic energy. When the user's movement intensity suddenly decreases, the inertial wheel (230) releases kinetic energy to maintain the rotational speed of the generator (220) rotor, so that the power generation does not drop sharply. When the coordinating controller (700) detects that the power generation fluctuation is lower than the preset threshold, it keeps the current brightness of the LED supplementary lighting device (120) unchanged. Example 7

[0041] The difference between this embodiment and Embodiment 1 is that the carbon dioxide adsorbent material in the adsorption bed of the DAC unit (800) is a humidity-driven adsorbent material, which spontaneously adsorbs CO2 under ambient humidity conditions and triggers desorption and release by changing humidity conditions. Example 8

[0042] The difference between this embodiment and Embodiment 1 is that the collaborative controller (700) stores a database of CO2 concentration target values ​​for different plant varieties and their corresponding growth cycles. Users select the currently planted plant variety (e.g., lettuce, spinach, tomato, cucumber, etc.) and the current growth cycle (seedling stage, growth stage, flowering stage, fruiting stage) through the human-computer interaction interface of the collaborative controller (700). Based on the selection, the collaborative controller (700) automatically retrieves the corresponding CO2 concentration target range from the database: 800-1200 ppm for leafy vegetables during the growth stage, 1000-1500 ppm for fruiting vegetables during the growth stage, 600-800 ppm for the seedling stage, and 1200-1500 ppm for the flowering and fruiting stage. When the CO2 concentration in the planting chamber is lower than the lower limit of the target range, the collaborative controller (700) increases the CO2 delivery rate; when the concentration is higher than the upper limit of the target range, the CO2 delivery is suspended.

Claims

1. A home smart vegetable planting device, characterized in that, include: The planting chamber (100) is equipped with a planting rack (110) and an LED supplemental lighting device (120). The multi-source power supply unit includes a human kinetic energy acquisition subunit (200) and an external power interface. The human kinetic energy acquisition subunit (200) is configured to convert the mechanical energy generated by human movement into electrical energy, and the external power interface is configured to connect to an external power source. The energy storage unit (300) is electrically connected to the multi-source power supply unit; The exhalation collection unit (400) is configured to collect carbon dioxide-containing gas exhaled by a human body; The CO2 enrichment module (450) is connected to the exhalation collection unit (400) and is configured to increase the concentration of carbon dioxide in the collected human exhaled gas before outputting it. The gas processing unit (500) is connected to the CO2 enrichment module (450) and is provided with at least one of a dehumidification module, a filtration module and a sterilization module along the airflow direction; A carbon dioxide delivery pipeline (600) connects the gas processing unit (500) to the planting chamber (100). The collaborative controller (700) is signal-connected to the multi-source power supply unit, the energy storage unit (300), the LED supplementary lighting device (120), and the carbon dioxide delivery pipeline (600), and is configured as follows: —Detect the output current or output voltage of the human kinetic energy acquisition subunit (200); —When the output current or output voltage is greater than or equal to the first preset value, the human kinetic energy acquisition subunit (200) is used to power the system and charge the energy storage unit (300) in the first place. —When the output current or output voltage is less than the first preset value but greater than or equal to the second preset value, the energy storage unit (300) supplies power to the system; —When the voltage or power of the energy storage unit (300) is lower than the third preset value, the system is automatically switched to the external power interface to supply power and to charge the energy storage unit (300); — Adjust the brightness of the LED supplementary lighting device (120) according to the real-time power generation of the human kinetic energy acquisition subunit (200).

2. The apparatus according to claim 1, characterized in that, The CO2 enrichment module (450) includes a membrane separation component, which is provided with a CO2 selective permeable membrane and configured to allow CO2 in exhaled gas to preferentially permeate through the membrane layer, while non-CO2 gases are blocked from being emitted.

3. The apparatus according to claim 1, characterized in that, The CO2 enrichment module (450) includes an adsorption unit filled with CO2 adsorption material, configured to adsorb CO2 in exhaled gas and release it by heating or depressurization.

4. The apparatus according to claim 1, characterized in that, The CO2 enrichment module (450) is a buffer chamber configured to temporarily store multiple exhaled gases, allowing CO2 to be naturally enriched within the buffer chamber.

5. The apparatus according to claim 1, characterized in that, The CO2 enrichment module (450) includes a CO2 concentration sensor and a diversion valve, configured to detect the CO2 concentration in the exhaled airflow in real time, and to open the acquisition channel when the CO2 concentration is higher than a preset value and close the acquisition channel when it is lower than the preset value.

6. The apparatus according to claim 1, characterized in that, The gas processing unit (500) is provided with a condensation dehumidification module (510), a HEPA filter module (520) and a UV sterilization module (530) in sequence along the airflow direction.

7. The apparatus according to claim 1, characterized in that, It also includes a DAC unit (800) connected to the carbon dioxide delivery line (600), configured to capture and store carbon dioxide from ambient air, and to release the stored carbon dioxide to the planting chamber (100) upon triggering.

8. The apparatus according to claim 1, characterized in that, The energy storage unit (300) is a hybrid energy storage module of supercapacitor and lithium battery.

9. The apparatus according to claim 1, characterized in that, The external power interface is configured to connect to at least one of AC mains power, solar photovoltaic panels, or wind turbines.

10. A method for controlling the environment of home intelligent vegetable planting, characterized in that, Includes the following steps: S1: Collects the mechanical energy generated by human movement, converts it into electrical energy, and stores it; S2: Collects carbon dioxide-containing gas exhaled by the human body; S3: Perform carbon dioxide concentration enhancement treatment on the collected exhaled gas; S4: Dehumidify, filter, and sterilize the gas after concentration enhancement; S5: The treated gas is delivered to the planting chamber; S6: Detects the output current or output voltage generated during the human kinetic energy harvesting process; S7: Perform three-level power supply scheduling based on the output current or output voltage: —When the output current or output voltage is greater than or equal to the first preset value, the electrical energy generated by human movement is used to directly supply power and charge the energy storage unit at the same time. —When the output current or output voltage is less than the first preset value but greater than or equal to the second preset value, the energy storage unit provides power. —When the voltage or charge of the energy storage unit is lower than the third preset value, it will automatically switch to external power supply and charge the energy storage unit. S8: Adjusts the LED fill light brightness according to the real-time power generation generated by human movement; S9: Dynamically adjusts the target range of carbon dioxide concentration in the planting chamber according to the plant species and growth cycle selected by the user.

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