Carbon balance-based steel structure elevator shaft green plant ecological regulation system and method

Abstract

The application provides a steel structure elevator shaft green plant ecological regulation and control system and method based on carbon balance, and belongs to the technical field of elevator low-carbon energy saving and vertical greening. The system comprises a green plant suspension module, a car air interaction module, an intelligent maintenance module, and a carbon balance calculation and control module. The green plant suspension module is assembled on the steel structure shaft outer facade to bear carbon fixation green plants. The car air interaction module monitors the carbon dioxide concentration of the car in real time and introduces oxygen-rich air purified by the green plants when the concentration exceeds the standard. The intelligent maintenance module realizes high-altitude green plant water and fertilizer integrated precision maintenance with the aid of multiple sensors. The carbon balance calculation and control module is internally provided with a data acquisition unit, a carbon emission calculation unit, a green plant carbon fixation evaluation unit, and a dynamic matching unit. The system can also reversely calculate the minimum green plant layout area before elevator transformation and pre-match carbon neutralization requirements. The application combines electrical energy saving and biological carbon fixation, reduces shaft temperature control energy consumption and improves car air environment, and realizes unmanned operation and maintenance of high-altitude green plants.

Description

Technical Field

[0001] This invention relates to the field of elevator low-carbon energy saving and vertical greening technology, and in particular to a steel structure elevator shaft greening ecological regulation system and method based on carbon balance. Background Technology

[0002] Installing steel-structure elevator shafts in older residential communities has become a mainstream solution for the renovation of existing buildings to improve convenience for residents. Steel-structure elevator shafts have advantages such as fast construction, light weight, and strong adaptability, but they also have several drawbacks in actual use: Firstly, steel structure shafts have a high thermal conductivity. In summer, when exposed to direct sunlight, the internal temperature of the shaft rises significantly, leading to a significant increase in the cooling load of the car's air conditioning, resulting in high overall energy consumption and carbon emissions for the elevator. Secondly, elevator cars are enclosed and confined spaces, and carbon dioxide concentrations accumulate rapidly when people ride in them. Conventional fresh air systems in elevator cars are energy-intensive and difficult to retrofit, resulting in poor air quality when riding in elevators. Third, the exposed exterior of the steel structure shaft results in a poor building appearance. Some existing projects will add vertical greenery to improve the landscape effect, but high-altitude greenery relies on regular manual maintenance, which is risky, has a poor water and fertilizer supply, and has a low survival rate, making it impossible to reliably perform carbon sequestration and cooling functions.

[0003] Current vertical greening technologies focus only on landscaping and localized cooling, failing to establish a coordinated control relationship with elevator operating energy consumption and carbon emissions. Elevator energy-saving technologies primarily concentrate on electrical energy-saving measures such as motor feedback, frequency conversion optimization, and car insulation, without incorporating biological carbon sequestration through plant photosynthesis for passive carbon neutralization. Furthermore, existing solutions cannot quantify the difference between elevator carbon emissions and plant carbon sequestration, cannot dynamically adjust plant maintenance strategies based on the carbon gap, and lack a fallback carbon reduction plan when plant carbon sequestration capacity is insufficient, making it difficult to meet policy requirements for low-carbon building retrofits and zero-carbon community construction. In addition, high-altitude greening lacks intelligent integrated water and fertilizer management, soil moisture and fertility cannot be adjusted as needed, and carbon sequestration efficiency fluctuates greatly, further limiting the application value of greening in elevator shaft carbon reduction scenarios.

[0004] Existing technological shortcomings: (1) The steel structure shaft absorbs heat and rises in temperature, the car air conditioning consumes a lot of energy, the carbon emissions of elevator operation remain high, and there is a lack of low-cost ecological cooling and carbon reduction methods. (2) The car is poorly ventilated and the carbon dioxide concentration is prone to exceed the standard. The cost and energy consumption of the independent fresh air system renovation are both high. (3) The artificial maintenance of high-altitude green plants on the exterior facade of the shaft is dangerous, the water and fertilizer management is extensive, the growth of green plants is unstable, and the carbon sequestration efficiency cannot be stable and controllable. (4) Elevator carbon emissions and green plant carbon sequestration are independent of each other. There is no unified carbon balance calculation model, so it is impossible to dynamically match carbon emissions and carbon sequestration, and it is impossible to achieve closed-loop control of carbon neutrality in elevator operation. (5) The greening layout relies solely on experience in selection, and it is impossible to reverse-engineer the optimal greening area and variety combination during the elevator design stage. The early planning lacks data support. Summary of the Invention

[0005] In view of this, the present invention provides a carbon balance-based greening ecological regulation system and method for steel structure elevator shafts to solve the problems of poor air quality in the enclosed space of existing steel structure elevator cars, high air conditioning energy consumption due to the greenhouse effect of the shaft, high difficulty and high operation and maintenance cost of high-altitude maintenance of greening on the facade, and the inability of existing vertical greening systems to establish a dynamic correlation with the carbon emissions of elevator operation and to achieve carbon neutrality of elevator operation.

[0006] The technical solution proposed in this invention is: a carbon balance-based greening ecological regulation system and method for steel structure elevator shafts, specifically including a greening hanging module, a car air interaction module, an intelligent maintenance module, and a carbon balance calculation and control module; the greening hanging module is installed on the exterior of the elevator steel structure shaft to support carbon-fixing greening plants; the car air interaction module is installed in the elevator car to facilitate airflow between the shaft and the car; the intelligent maintenance module is installed corresponding to the greening hanging module to perform water and fertilizer maintenance operations; and the carbon balance calculation and control module is connected to the other modules to perform carbon balance calculation and hierarchical regulation.

[0007] Furthermore, the green plant hanging module includes an installation track fixed along the exterior facade of the shaft and multiple hanging planting boxes that can be detachably installed on the installation track; the planting box is provided with a drainage layer and a substrate layer from bottom to top, and the carbon-fixing green plants it carries are one or more combinations of vines, ferns or small shrubs.

[0008] Furthermore, the car air interaction module includes a carbon dioxide sensor, a micro-pressure intelligent ventilation valve, and a micro air pump; the carbon dioxide sensor is installed inside the car to detect the carbon dioxide concentration in real time, and the micro-pressure intelligent ventilation valve is located on the car wall and opens when the concentration is higher than a threshold to introduce oxygen-rich air purified by green plants in the shaft.

[0009] Furthermore, the intelligent maintenance module includes a soil moisture sensor, a soil conductivity sensor, an ambient temperature and humidity sensor, a drip irrigation pipeline, and a fertilizer pump; each sensor is pre-embedded in the substrate layer of the planting box, and the drip irrigation pipeline and fertilizer pump are installed on the top of the well, which can perform precise water and fertilizer supply based on sensor data.

[0010] Furthermore, the carbon balance calculation and control module includes a data acquisition unit, a carbon emission calculation unit, a green plant carbon sequestration assessment unit, and a dynamic matching unit, which can simultaneously collect elevator energy consumption, environmental parameters, and cabin air quality data and complete the calculation and processing.

[0011] Furthermore, the carbon emission calculation unit incorporates local power grid carbon emission factor parameters, enabling it to calculate the elevator's real-time cumulative carbon emissions based on the elevator drive motor's real-time power, operating time, standby energy consumption, and car air conditioning energy consumption. .

[0012] Furthermore, the green plant carbon sequestration assessment unit has a built-in green plant carbon sequestration database, which can calculate the average daily carbon sequestration of green plants per unit area of ​​the current building facade by combining the current season, light intensity, and ambient temperature. .

[0013] Furthermore, the dynamic matching unit uses the formula Calculate the carbon balance difference, where S is the effective green cover area and η is the green health coefficient; when When the value is greater than 0 and continues to rise, output instructions are given to adjust the water and fertilizer supply to improve the carbon sequestration efficiency of green plants.

[0014] Furthermore, when the physical space of the shaft's exterior facade has reached its limit, and it is impossible to achieve the desired effect by adding greenery or adjusting water and fertilizer, When the value is ≤0, the dynamic matching unit will generate a prompt message indicating that carbon credits need to be purchased or that elevator energy-saving strategies need to be optimized.

[0015] Furthermore, the present invention also includes a pre-configuration step, in which the combination of green plant species and the minimum layout area required to achieve carbon balance can be calculated in reverse based on the estimated annual carbon emissions of the elevator during the elevator design or renovation stage.

[0016] Furthermore, the system can generate carbon balance reports according to set daily, monthly, and yearly periods, recording the cumulative carbon emissions, total carbon sequestration, difference trends, and control measures implementation records within the corresponding period, and supports remote viewing and data export.

[0017] The carbon balance-based greening ecological regulation system and method for steel structure elevator shafts provided by this invention has the following beneficial effects: In use, this invention establishes a dynamic closed-loop control relationship between the carbon emissions from elevator operation and the biological carbon sequestration capacity of the exterior greenery through a carbon balance calculation model. This breaks through the limitations of traditional elevators that rely solely on electrical means for energy saving and carbon reduction, and can achieve zero-carbon or negative-carbon goals throughout the elevator's operating cycle. Simultaneously, oxygen-rich air purified by the greenery can be directionally introduced into the elevator car, replacing part of the high-energy-consuming fresh air system. Combined with the physical shielding and transpiration effects of the greenery, this reduces the shaft temperature, effectively improving passenger comfort and reducing the car's air conditioning energy consumption. Through the integration of multi-sensor fusion and an automatic water and fertilizer system, unmanned and precise maintenance of the elevator's exterior greenery is achieved, solving the safety risks and high costs associated with high-altitude greenery maintenance. Furthermore, the continuous green facade transforms the cold steel structure shaft into a vertical green landscape, effectively enhancing the overall aesthetic value of the building and the passenger experience. Attached Figure Description

[0018] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings of the embodiments will be briefly described below.

[0019] The accompanying drawings described below are only related to some embodiments of the invention and are not intended to limit the invention.

[0020] In the attached diagram: Figure 1 A system architecture diagram of the present invention is shown.

[0021] Figure 2 A flowchart of the method of the present invention is shown. Detailed Implementation

[0022] To make the objectives, technical solutions, and advantages of this invention clearer, the technical solutions of this invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of this invention. Obviously, the described embodiments are only some, not all, of the embodiments of this invention. Based on the described embodiments of this invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this invention.

[0023] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments. It should be understood that the embodiments described herein are only for explaining the present invention and are not intended to limit the scope of protection of the present invention.

[0024] The carbon balance-based green ecological regulation system and method for steel structure elevator shafts provided in this embodiment are mainly applied to steel structure elevator shafts installed in old buildings. By deploying an intelligently maintainable green plant system on the exterior facade of the shaft, a dynamic matching calculation model between elevator carbon emissions and green plant carbon sequestration is established. This improves the air environment in the car, reduces the energy consumption due to temperature changes in the shaft, and achieves the goal of carbon neutrality in elevator operation.

[0025] I. System Overall Architecture This system consists of four parts: a green plant hanging module, a car air interaction module, an intelligent maintenance module, and a carbon balance calculation and control module. The system is deployed by expanding upon the existing elevator control cabinet. The carbon balance calculation and control module is integrated inside the elevator control cabinet, while the remaining modules are arranged along the exterior facade of the steel structure shaft, corresponding to the car. Data transmission and command interaction between the modules are achieved via CAN bus or LoRa wireless communication, ensuring compatibility with the existing elevator control system's communication protocol without requiring large-scale modifications to the original elevator hardware.

[0026] II. Specific Implementation Structure of Each Module 1. Green plant hanging module: This module is installed on the outer facade of the steel structure shaft. For steel structure shafts with glass curtain walls, it can also be installed on the inner side of the glass curtain wall, which ensures that the green plants receive light while avoiding direct damage from rain and strong winds.

[0027] Installation structure: Includes vertical mounting rails, suspended planting boxes, and anti-fall buckles. The mounting rails are made of 6063 aluminum alloy profiles and are fixed to the steel structure columns of the well shaft with stainless steel bolts. The vertical length of the rails covers the entire height of the well shaft, and standard buckle positions with a spacing of 40cm are reserved on the rails. The suspended planting boxes are made of PP fiberglass reinforced lightweight material in one piece. Each box is 60cm long, 20cm wide, and 15cm high. The empty box weighs ≤1.2kg, and the total weight after being fully loaded with substrate and plants is ≤8kg. The bottom of the planting box is equipped with an 8mm diameter drainage hole and a leak-proof plug. The interior is laid from bottom to top with a 3cm thick layer of expanded clay pebbles for drainage, and a 10cm thick layer of lightweight cultivation substrate (humus and perlite mixed in a 3:1 ratio). Water and fertilizer drip irrigation interfaces are pre-embedded in the substrate layer.

[0028] Plant Selection: Considering the climate characteristics of East China, ivy and Boston ferns are selected as the core carbon-sequestering plants, supplemented by a small number of small shrubs with golden-edged Serissa japonica. Climbing plants grow along the vertical tracks, forming a continuous green facade. The average daily basic carbon sequestration per unit area can be retrieved from a database. The green layer, on the one hand, reduces the temperature of the shaft interior wall by 3-5°C in summer through physical shading and transpiration, reducing the energy consumption of the car's air conditioning; on the other hand, it absorbs carbon dioxide and releases oxygen through photosynthesis, providing an oxygen-rich source for air exchange within the car.

[0029] 2. Car air interaction module: This module is installed on the top and sides of the elevator car to enable directional exchange of air purified by green plants in the shaft with the air inside the car.

[0030] Hardware components include an NDIR infrared carbon dioxide sensor, a micro-pressure intelligent ventilation valve, a miniature silent air pump, and a primary filter. The carbon dioxide sensor has a measurement range of 0~5000ppm and a measurement accuracy of ±50ppm. It is positioned in the center of the ceiling inside the car to collect real-time carbon dioxide concentration data and upload it to the control module. The micro-pressure intelligent ventilation valve has a nominal diameter of 80mm, is normally closed, has an IP54 protection rating, and is located on the upper side wall of the car. A replaceable primary filter is installed inside the ventilation opening to block dust, insects, and moisture. The miniature silent air pump is located in the ceiling compartment of the car, with a rated airflow of 15m³ / h and operating noise ≤30dB.

[0031] Working logic: When the carbon balance calculation and control module detects that the carbon dioxide concentration in the car is higher than the preset threshold of 800ppm, it controls the micro-pressure intelligent ventilation valve to open and starts the micro air pump at the same time; the air purified and enriched by the green plant layer in the shaft is sent into the car, while the high concentration of carbon dioxide air in the car is naturally discharged from the gap at the bottom of the car, forming a micro-positive pressure air circulation; when the carbon dioxide concentration in the car drops to below 600ppm, the ventilation valve and air pump are closed, and the car is restored to a closed and insulated state.

[0032] In a simplified implementation, the micro air pump can be eliminated, and passive air exchange can be achieved by utilizing the shaft piston effect generated by the elevator's vertical movement and natural negative pressure, further reducing system energy consumption.

[0033] 3. Intelligent maintenance module: This module corresponds to the green plant hanging module, which is used to realize unmanned and precise water and fertilizer maintenance of green plants, and solve the problem of high-altitude operation maintenance.

[0034] Sensor array: Each suspended planting box has a soil moisture sensor and a soil electrical conductivity (EC value) sensor pre-embedded in the substrate layer; a light sensor and an ambient temperature and humidity sensor are installed at the top of the well. The soil moisture sensor has a measurement range of 0~100% and an accuracy of ±2%; the soil EC value sensor has a measurement range of 0~20mS / cm and is used to indirectly reflect soil fertility and plant health.

[0035] Water and fertilizer application mechanism: The main water supply pipeline and fertilizer solution pipeline are laid at the top of the well. Each vertical installation track corresponds to a branch drip irrigation pipe. Each drip irrigation pipe is equipped with a pressure-compensated dripper corresponding to each planting box, with a rated flow rate of 2L / h. An electrically controlled solenoid valve is installed on the main water pipeline, and a metering fertilizer pump is installed on the fertilizer solution pipeline. Both are electrically connected to the carbon balance calculation and control module.

[0036] Maintenance Logic: The control module collects data from various sensors every 2 hours. When the soil volumetric moisture content is below the 20% threshold, the water supply solenoid valve is activated for drip irrigation. When the soil EC value is below the 1.2mS / cm threshold, the fertilizer pump is activated to inject nitrogen, phosphorus, and potassium water-soluble fertilizer in proportion, achieving precise integrated water and fertilizer supply. The system can automatically pause watering based on environmental humidity and rainfall data to avoid over-irrigation and water waste. Simultaneously, this module can receive control commands from the carbon balance calculation and control module to dynamically adjust water and fertilizer supply parameters, thereby altering plant growth rate and carbon sequestration efficiency.

[0037] 4. Carbon Balance Calculation and Control Module: This module uses an ARM architecture embedded main control board, integrated within the elevator control cabinet. It has built-in storage and data processing units, specifically including four functional units: a data acquisition unit, a carbon emission calculation unit, a green plant carbon sequestration assessment unit, and a dynamic matching unit. Data acquisition unit: Through the existing frequency converter interface of the elevator, it can acquire the real-time power, running time, standby energy consumption of the elevator drive motor, and the energy consumption of the car air conditioner; it can also collect full data from environmental sensors, soil sensors, and car air quality sensors simultaneously.

[0038] Carbon emission calculation unit: Built-in local power grid carbon emission factor parameters calculate the real-time cumulative carbon emissions from elevator operation, denoted as... The specific calculation formula is as follows: In the formula, EF is the local power grid carbon emission factor. This refers to the real-time power of each electrical device (drive motor, air conditioner, standby load, etc.). This refers to the runtime of the corresponding device.

[0039] Green Plant Carbon Sequestration Assessment Unit: This unit incorporates a green plant carbon sequestration database. Based on the current season, light intensity, and temperature, it calculates the average daily carbon sequestration per unit area of ​​the building facade, and records it as [data missing]. Combine the area of ​​green plants and their health status to calculate the total carbon sequestration capacity of the green plant system.

[0040] Dynamic matching and early warning unit: This unit uses a carbon balance difference formula to dynamically compare carbon emissions and carbon sequestration. The calculation formula is as follows: Where S is the effective green coverage area and η is the green health coefficient, with a value range of 0 to 1, which is calculated by comprehensively considering soil water and fertilizer data, temperature and humidity data, and light data.

[0041] The system performs operations according to a set cycle. Continuous monitoring will be conducted. when When the carbon sequestration of the current green plant system is ≤0, it is determined that the carbon sequestration of the current green plant system can cover the carbon emissions of the elevator, the system is in a carbon balance / negative carbon state, and the current maintenance strategy is maintained. When the system calculates and discovers When the value is >0 and continues to rise, a first-level control instruction is issued: increase the planting density of green plants on the facade, or promote the growth of green plants by adjusting water and fertilizer to improve carbon sequestration efficiency. If the physical space of the shaft's exterior facade has reached its limit and cannot be improved by adding greenery or adjusting water and fertilizer, If the value is ≤0, the system will generate a prompt indicating "carbon credits need to be purchased" or "elevator energy-saving strategy needs to be optimized," ensuring the overall zero-carbon / negative-carbon status of the elevator from a design and management perspective.

[0042] III. Specific Implementation Steps of the Regulation Method The specific steps of the carbon balance-based greening ecological regulation method for steel structure elevator shafts in this embodiment are as follows: After powering on, the system initializes and performs self-tests and calibrations on all sensors and actuators; subsequently, it synchronously acquires three types of data at a set frequency: ① Elevator energy consumption data: real-time power of drive motor, running time, standby energy consumption, and car air conditioning energy consumption; ② Green plant and environmental data: soil moisture, soil EC value, ambient temperature and humidity, light intensity; ③ Car air quality data: carbon dioxide concentration. All data is stored locally and updated synchronously.

[0043] The periodic carbon emission statistics are calculated according to a set period (daily / monthly), taking into account the local power grid carbon emission factor, to calculate the real-time cumulative carbon emissions of elevators within that period. And simultaneously accumulate the total carbon emissions over a longer period to form a carbon emission trend curve.

[0044] The periodic calculation of green plant carbon sequestration retrieves seasonal, average light intensity, and average temperature parameters for the corresponding period, matches them with the green plant carbon sequestration database, and calculates the average daily carbon sequestration per unit area of ​​the current building facade. Combine the effective green coverage area S with the green health coefficient η to calculate the total carbon sequestration of the green system during this period.

[0045] Carbon balance difference calculation and hierarchical control: Through formula Calculate the carbon balance difference and implement the corresponding control strategy: like If the value is >0 and continues to rise, it is determined that the carbon sequestration is insufficient. A control command is sent to the intelligent maintenance module to adjust the water and fertilizer supply parameters, promote plant growth, and improve carbon sequestration efficiency. When space permits, a prompt is made to increase the planting density of plants. If the adjustment still fails to achieve the desired result If the value is ≤0 and the physical space has reached its limit, a prompt message will be generated to "purchase carbon credits" or "optimize elevator energy-saving strategies". The system monitors the carbon dioxide concentration inside the car in real time. If the concentration is higher than the preset threshold, it controls the car air interaction module to open and introduce oxygen-rich air purified by green plants in the shaft into the car. The system closes after the concentration drops to a safe value. At the end of each statistical period, a carbon balance report for that period is automatically generated, including cumulative carbon emissions, cumulative carbon sequestration, and so on. Information includes trends, records of control measures, and the health status of green plants.

[0046] IV. Implementation of the Pre-design Methodology During elevator design or renovation of old residential areas, this system supports pre-configuration calculations: input the elevator's rated load, operating speed, estimated daily average number of runs, and estimated annual power consumption to calculate the elevator's annual carbon emissions; then, using the aforementioned carbon balance formula, ... With a target of ≤0, the combination of green plant species and the minimum layout area required to achieve carbon balance are calculated in reverse. Combined with the dimensions of the shaft facade, the layout scheme is optimized to ensure that the carbon neutrality target can be achieved from the design stage.

[0047] V. Specific Application Examples Taking a steel structure elevator shaft with a load capacity of 1000kg and a speed of 1.0m / s installed in an old residential community in Hangzhou as an example: Elevator basic parameters: The original total annual power consumption was approximately 12,000 kWh, of which the annual power consumption of the car air conditioning was approximately 3,000 kWh; calculated based on the East China Power Grid carbon emission factor of 0.581 kgCO2 / kWh, the total annual carbon emissions were... Approximately 6972 kg of CO2.

[0048] Energy saving and emission reduction effects: By using green plants on the exterior facade to provide shade and reduce temperature, the energy consumption of the cabin air conditioner is reduced by 30%, reducing electricity consumption by 900kWh per year, which corresponds to a reduction of approximately 523kgCO2 emissions, with a remaining annual carbon emission of approximately 6449kgCO2.

[0049] Carbon sequestration calculation by green plants: The effective green coverage area S of the exterior facade of the shaft is 80㎡. A combination of high carbon sequestration vines is selected. The average annual carbon sequestration per unit area is calculated. The annual carbon sequestration is 2.2 kg / m²·year; by maintaining the plant health coefficient η at 0.95 through intelligent maintenance, the total annual carbon sequestration is approximately 167 kg CO2. >0 and there is a large gap.

[0050] Final Balance Solution: Since the physical space of the elevator shaft facade has reached its limit, the system generates a prompt that the remaining carbon emission gap can be made up by purchasing the corresponding amount of carbon credits or by installing an elevator energy feedback device to further reduce energy consumption, ultimately achieving net-zero carbon emissions throughout the elevator's entire life cycle.

[0051] The above are merely specific embodiments of the present invention, but the scope of protection of the present invention is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in the present invention should be included within the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be determined by the scope of the claims.

Claims

1. A carbon balance-based greening ecological regulation system for steel structure elevator shafts, characterized in that, It includes a green plant hanging module, a car air interaction module, an intelligent maintenance module, and a carbon balance calculation and control module; The green plant hanging module is installed on the exterior facade of the elevator steel structure shaft to support green plants with carbon sequestration capabilities. The car air interaction module is installed in the elevator car to detect the carbon dioxide concentration in the car and, when the concentration is higher than a preset threshold, to open the air passage between the shaft and the car to introduce air purified by the green plants on the exterior facade into the car. The intelligent maintenance module is installed in conjunction with the green plant hanging module and is used to perform water and fertilizer supply operations on the green plants. The carbon balance calculation and control module is connected to the car air interaction module and the intelligent maintenance module respectively. It is used to collect elevator operating energy consumption data and calculate the cumulative carbon emissions. At the same time, it obtains the real-time carbon sequestration rate of green plants and calculates the total carbon sequestration. Based on the difference between carbon emissions and total carbon sequestration, it outputs control instructions to the intelligent maintenance module to adjust the carbon sequestration efficiency of green plants.

2. The carbon balance-based greening ecological regulation system for steel structure elevator shafts according to claim 1, characterized in that, The green plant hanging module includes an installation track set along the exterior facade of the shaft and multiple hanging planting boxes that can be detachably installed on the installation track; the planting box has a built-in substrate layer and a drainage layer, and the green plants are one or more combinations of vines, ferns or small shrubs.

3. The carbon balance-based greening ecological regulation system for steel structure elevator shafts according to claim 1, characterized in that, The car air interaction module includes a carbon dioxide sensor, a micro-pressure intelligent ventilation valve, and a micro air pump. The carbon dioxide sensor is installed inside the car, and the micro-pressure intelligent ventilation valve is located on the car wall. When the carbon dioxide concentration is higher than a preset threshold, the carbon balance calculation and control module controls the ventilation valve to open, introducing oxygen-rich air from the shaft into the car through the natural negative pressure of the shaft or the micro air pump, while simultaneously expelling high-carbon air from the car.

4. The carbon balance-based greening ecological regulation system for steel structure elevator shafts according to claim 1, characterized in that, The intelligent maintenance module includes a soil moisture sensor, a soil conductivity sensor, an ambient temperature and humidity sensor, a drip irrigation pipeline, and a fertilizer pump; each sensor is installed inside the planting box, and the drip irrigation pipeline and fertilizer pump are installed at the top of the well; the carbon balance calculation and control module controls the drip irrigation pipeline and fertilizer pump to perform integrated water and fertilizer operation based on sensor detection data and control instructions.

5. The carbon balance-based greening ecological regulation system for steel structure elevator shafts according to claim 1, characterized in that, The carbon balance calculation and control module includes a data acquisition unit, a carbon emission calculation unit, a green plant carbon sequestration assessment unit, and a dynamic matching unit. The data acquisition unit is used to collect the real-time power, running time, standby energy consumption of the elevator drive motor, and the energy consumption of the car air conditioning. The carbon emission calculation unit is used to calculate the real-time cumulative carbon emission of the elevator, Cemit, in conjunction with the local power grid carbon emission factor. The green plant carbon sequestration assessment unit is used to calculate the average daily carbon sequestration per unit area of ​​green plants, in conjunction with the current season, light intensity, and ambient temperature, and to obtain the total carbon sequestration, Cabsorb, by combining the green plant area S and the green plant health coefficient ƞ. The dynamic matching unit is used to compare Cemit and Cabsorb. When Cemit > Cabsorb and continues to rise, it outputs a control command to increase water and fertilizer supply, or outputs a green plant expansion prompt and a carbon credit purchase prompt.

6. A method for ecological regulation of greenery in steel structure elevator shafts based on carbon balance, characterized in that, Includes the following steps: S1. Real-time collection of elevator operating energy consumption data and carbon dioxide concentration data in the car; S2. Calculate the cumulative carbon emissions of the elevator within a set period based on the elevator's operating energy consumption data; S3. Obtain the real-time carbon sequestration rate of the greenery on the exterior facade of the shaft and calculate the total carbon sequestration of the greenery within the set period. S4. Compare the difference between cumulative carbon emissions and total carbon sequestration, and output the corresponding control strategy: If the carbon sequestration is insufficient, adjust the water and fertilizer supply to the green plants to improve carbon sequestration efficiency. If the carbon dioxide concentration in the car exceeds the preset threshold, oxygen-rich air purified by green plants in the shaft will be introduced into the car. Generate carbon balance reports for the corresponding period.

7. The method for ecological regulation of greenery in steel structure elevator shafts based on carbon balance according to claim 6, characterized in that, In step S2, the real-time cumulative carbon emissions of the elevator (Cemit) are calculated by combining the local power grid carbon emission factor with the real-time power, running time, standby energy consumption of the elevator drive motor and the energy consumption of the car air conditioning.

8. The method for ecological regulation of greenery in steel structure elevator shafts based on carbon balance according to claim 6, characterized in that, In step S3, based on the pre-built green plant carbon sequestration database, and combined with the current season, light intensity, and ambient temperature parameters, the average daily carbon sequestration of green plants per unit area is calculated. Then, combined with the green plant layout area S and the green plant health coefficient ƞ, the total carbon sequestration of green plants (Cabsorb) is calculated.

9. The method for ecological regulation of greenery in steel structure elevator shafts based on carbon balance according to claim 6, characterized in that, The control strategy in step S4 also includes: when increasing the water and fertilizer supply still cannot meet the requirement that the total carbon sequestration is greater than or equal to the cumulative carbon emissions, and the space for greening on the exterior facade of the shaft reaches the upper limit, a prompt message is generated to purchase carbon credits or optimize the elevator energy-saving strategy.

10. The method for ecological regulation of greenery in steel structure elevator shafts based on carbon balance according to claim 6, characterized in that, It also includes a pre-configuration step: during the elevator design or renovation phase, based on the elevator's estimated annual carbon emissions, the combination of green plant species and the minimum layout area required to achieve carbon balance are calculated in reverse, which guides the installation of green plant hanging modules.

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