Power transmission and transformation project ecological restoration shrub and herbaceous combination pre-cultivation device and method

Abstract

The invention discloses a power transmission and transformation project ecological restoration shrub and herbaceous combined pre-culture device and method, and the device comprises a seedbed frame, a plurality of layers of seedbeds arranged on the seedbed frame, a plurality of combined pre-culture bowls arranged on the seedbeds, a water and fertilizer system and a temperature control system. Shrub growth holes and herb growth holes are formed in the combined pre-culture bowls, and shrubs and herbs for ecological restoration are pre-cultured in a staggered manner; the intensive pre-culture device is used for regulating and controlling the growth environment of the combined pre-culture seedlings, such as temperature, humidity, fertilizer, illumination and the like; and the pre-cultured shrub and herbaceous combined seedlings are transported and transferred to the power transmission and transformation project ecological restoration practice through the seedling transfer device, so that the rapid restoration of the power transmission and transformation project degraded ecological system is realized.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of ecological restoration, in particular to a shrub and herb combination pre-cultivation device and method for ecological restoration of power transmission and transformation projects. BACKGROUND

[0002] During the construction of power transmission and transformation projects, mechanical equipment enters and exits the site to perform construction activities such as foundation excavation, pouring, tower assembly, and line erection, which will inevitably cause damage and degradation of the plant cover layer, soil erosion, and exposure of bedrock, further leading to more serious soil erosion and even geological disasters such as landslides and mudslides, which not only seriously affect the operation safety of the project and the safety of people's lives and property, but also cause great damage to the ecological system along the line.

[0003] Currently, there are traditional methods such as guest soil covering, sowing shrub and herb seeds, planting seedlings, or hanging net and spraying shrub and herb seeds for ecological restoration of power transmission and transformation projects. However, these traditional methods have the following shortcomings: ① large demand for guest soil; ② simultaneous sowing of shrubs and herbs, with the early competitiveness of shrubs being weaker than that of herbs, leading to an imbalance in plant community structure; ③ long-term maintenance is required for the growth of seedlings to achieve greening effect; and ④ a long time is required for seed germination and growth, resulting in slow project effectiveness and difficulty in achieving good restoration effect in a short period of time. In view of the above shortcomings, there is no technology system that can achieve fast effectiveness, maintenance-free, and reasonable shrub and herb community structure. SUMMARY

[0004] The present application aims to solve the above problems and provide a shrub and herb combination pre-cultivation device and method for ecological restoration of power transmission and transformation projects. By setting shrub growth holes and herb growth holes on the combination pre-cultivation pot, shrubs and herbs for ecological restoration are pre-cultivated at different times and spaces, and the pre-cultivated shrub and herb combination seedlings are transported and transferred to the practice of ecological restoration of power transmission and transformation projects, achieving rapid recovery of degraded ecological systems in power transmission and transformation projects.

[0005] The technical solution adopted by the present application to solve its technical problems is as follows: A shrub and herb combination pre-cultivation device for ecological restoration of power transmission and transformation projects, comprising a seedbed frame, a plurality of layers of seedbeds arranged on the seedbed frame, a plurality of combination pre-cultivation pots arranged on the seedbeds, and a water and fertilizer system and a temperature control system.

[0006] Further, the combination pre-cultivation pot comprises a plurality of shrub growth holes and a plurality of herb growth holes.

[0007] Further, the shrub growth holes and the herb growth holes are distributed at intervals, and the hole depth and diameter of the shrub growth holes are greater than those of the herb growth holes.

[0008] Further, a plurality of sunken placement grooves for placing the combination pre-cultivation pots are uniformly arranged on the seedbed.

[0009] Further, the water and fertilizer system comprises pipes symmetrically arranged on the seedbed and a lifting rod arranged between the pipes, both ends of the pipe are provided with rotating frames which are rotationally connected between the lower end and the seedbed, the lifting rod is symmetrically provided with connecting rods on both sides, the lower end of the connecting rod is rotationally connected with the lifting rod, and the upper end of the connecting rod is rotationally connected with the corner position of the rotating frame.

[0010] Further, the seedbed frame is provided with a lifting frame, and both ends of the lifting rod are connected with corresponding legs of the lifting frame.

[0011] Further, the upper end of the seedbed frame is provided with a cross beam, the cross beam is provided with a lifting cylinder, and the piston rod end of the lifting cylinder is connected with the upper end of the lifting frame.

[0012] Further, a shrub and herb combination pre-cultivation method for ecological restoration of power transmission and transformation projects utilizes the device and comprises the following steps: S101, acquiring seedling growth environment data through a sensor network, wherein the environment data includes moisture, nutrient concentration and temperature information; S102, screening and anomaly detecting the environment data to obtain an effective environment data set; S103, analyzing the deviation of seedling growth demand and environmental conditions according to the effective environment data set to determine an environmental parameter adjustment scheme; S104, dynamically calculating water and fertilizer supply ratios and temperature control parameters through an adjustment algorithm to generate comprehensive environment adjustment instructions; S105, transmitting the comprehensive environment adjustment instructions to an execution terminal for environment intervention to obtain adjusted environment state data; and S106, continuously monitoring seedling growth indicators, predicting environment adjustment effects and optimizing intervention schemes.

[0013] In step S103, the following are mainly included: extracting water and fertilizer demand and temperature condition data from the effective environment data set, comparing with a pre-constructed seedling growth model, calculating a deviation value, determining that the environmental parameters are unbalanced if the deviation value exceeds a preset threshold range, obtaining specific deviation quantitative data through data screening, classifying potential influence evaluation data by using a support vector machine algorithm, determining an adjustment priority and matching a control strategy.

[0014] In step S104, the following are mainly included: obtaining real-time error information from the deviation data, dynamically adjusting the error data by using a proportional-integral-derivative controller to determine the supply ratio of water and nutrients, performing secondary correction if the adjustment value exceeds a preset threshold range, optimizing the matching degree by using a gradient descent method, updating the execution parameters according to the final matching scheme, adjusting the running state of the supply equipment through a closed-loop control system to obtain real-time feedback data.

[0015] The beneficial effects of the present application are as follows: 1. The present application sets shrub growing holes and herb growing holes on the combined pre-planting pot, staggered time and space pre-planting ecological restoration of shrubs and herbs; through the intensive pre-planting device, the growth environment of the combined pre-planting seedlings such as temperature, humidity, fertilizer, light, etc. is regulated; through the seedling transfer device, the pre-planting completed shrub and herb combined seedlings are transported and transferred to the power transmission and transformation engineering ecological restoration practice, realizing the rapid recovery of the degraded ecological system of the power transmission and transformation engineering.

[0016] 2. The present application collects water, nutrient concentration and temperature data in real time, analyzes the deviation of current growth demand and environmental conditions of seedlings, dynamically calculates the optimal water and fertilizer ratio scheme and links the temperature regulation, generates comprehensive environmental regulation instructions and executes intervention. The present application continuously monitors the growth indicators of seedlings, uses time series analysis to predict the environmental regulation effect, and iteratively optimizes the control parameters if the expected result is not achieved. This method realizes the accurate perception, intelligent analysis and adaptive control of the growth environment of seedlings, effectively improves the automation level and growth quality of seedling cultivation, and provides technical support for modern seedling cultivation. BRIEF DESCRIPTION OF DRAWINGS

[0017] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the drawings needed to be used in the embodiment or prior art description will be briefly introduced below. Obviously, for those skilled in the art, other drawings can also be obtained without creative labor on the basis of these drawings.

[0018] Figure 1 The present application is a structural schematic diagram; Figure 2 The present application is a left view; Figure 3 The present application is a combined pre-planting pot sectional view; Figure 4 The present application is a combined pre-planting pot plan view; Figure 5 The present application is a flow chart.

[0019] In the figure: seedbed frame 1, seedbed 2, combined pre-planting pot 3, shrub growing hole 4, herb growing hole 5, placing groove 6, pipeline 7, lifting rod 8, rotating frame 9, connecting rod 10, lifting frame 11, cross beam 12, lifting cylinder 13. DETAILED DESCRIPTION

[0020] In order for those skilled in the art to better understand the technical solutions in the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below in combination with the accompanying drawings of the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor should fall within the scope of protection of the present application.

[0021] As shown in Figure 1 and Figure 3 , a shrub and herb combination pre-cultivation device for ecological restoration of power transmission and transformation projects comprises a seedbed frame 1, a plurality of layers of seedbeds 2 arranged on the seedbed frame 1, a plurality of combination pre-cultivation pots 3 arranged on the seedbeds 2, and a water and fertilizer system and a temperature control system. The temperature control system is composed of temperature control lamps, temperature sensors and temperature control regulators. An intelligent operation panel controls the intelligent water and fertilizer system and the intelligent temperature control system through a circuit.

[0022] By arranging shrub growth holes and herb growth holes on the combination pre-cultivation pots, shrubs and herbs for ecological restoration are pre-cultivated in staggered time and space. The growth environment of the combination pre-cultivated seedlings, such as temperature, humidity, fertilizer, light, etc., is controlled by the intensive pre-cultivation device. The shrub and herb combination seedlings pre-cultivated are transported and transferred to the practice of ecological restoration of power transmission and transformation projects by the seedling transfer device, so as to realize the rapid recovery of the degraded ecological system of power transmission and transformation projects.

[0023] As shown in Figure 3 and Figure 4 , the combination pre-cultivation pot 3 comprises a plurality of shrub growth holes 4 and a plurality of herb growth holes 5. The combination pre-cultivation pot 3 is a light, high-porosity and strong-toughness inverted round table pot body made of solid waste as the main raw material, adding an appropriate amount of high-fiber material such as carbon cotton, and high-temperature disinfection and shaping. The inner pores of the pot body are fine and dense, and have strong water absorption, water storage and water retention capacity. The shrub growth holes 4 and the herb growth holes 5 are distributed at intervals, and the hole depth and hole diameter of the shrub growth holes 4 are both greater than those of the herb growth holes 5.

[0024] As shown in Figure 1 , the seedbed 2 is uniformly provided with a plurality of sunken placement grooves 6 for placing the combination pre-cultivation pots 3. The placement grooves 6 are inverted round tables, the hole depth is slightly smaller than that of the combination pre-cultivation pots 3, and the hole diameter is slightly larger than that of the combination pre-cultivation pots 3, so as to facilitate the taking and placing of the combination pre-cultivation pots 3 and the sowing of shrub seeds and herb seeds.

[0025] As shown in Figure 1 and Figure 2As shown, the water and fertilizer system comprises pipes 7 symmetrically arranged on the seedbed 2 and a lifting rod 8 arranged between the two pipes 7, the pipes 7 are provided with a plurality of drip irrigation holes, and the pipes 7 are both provided with rotating frames 9 rotatably connected between the lower ends and the seedbed 2, the rotating frames 9 are right-angle frames with the corner positions inward, the lifting rod 8 is symmetrically provided with connecting rods 10 on both sides, the lower ends of the connecting rods 10 are rotatably connected with the lifting rod 8, and the upper ends of the connecting rods 10 are rotatably connected with the corner positions of the rotating frames 9. The pipes 7 are connected with water and fertilizer medicine conveying pipes, and further comprise a water and fertilizer sensor, a water and fertilizer medicine electromagnetic valve, a water and fertilizer medicine storage box and the like, which are prior art and will not be described in detail here. When the combined pre-cultivation pots 3 are placed on the seedbed 2, the lifting rod 8 is lowered, and under the action of the connecting rods 10, the two pipes 7 on both sides are synchronously swung inward, without interfering with the taking of the combined pre-cultivation pots 3. When drip irrigation is needed, the lifting rod 8 is raised, and under the action of the connecting rods 10, the two pipes 7 on both sides are synchronously swung outward, so as to realize the drip irrigation operation.

[0026] As shown in Figure 1 The seedbed frame 1 is provided with a lifting frame 11, the lifting frame 11 is a door-shaped frame, the supports of the door-shaped frame pass through the seedbed frame 1 and are slidably connected with the seedbed frame 1, and the two ends of the lifting rod 8 are respectively connected with the corresponding legs of the lifting frame 11.

[0027] As shown in Figure 1 The upper end of the seedbed frame 1 is provided with a cross beam 12, the cross beam 12 is provided with a lifting cylinder 13, and the piston rod end of the lifting cylinder 13 is connected with the upper end of the lifting frame 11.

[0028] The ecological restoration of power transmission and transformation projects comprises the following steps. Step one: on-site investigation of natural vegetation, climate, hydrology, topography and other factors of the power transmission and transformation project to be restored, and screening of shrubs and herb combinations suitable for ecological restoration of the power transmission and transformation project; Step two: building an intensive pre-cultivation device and placing the combined pre-cultivation pots in the pre-cultivation pot placing holes thereon. After a series of treatments such as disinfection and germination acceleration, the shrub seeds screened in step one are sown in the shrub growth holes in the combined pre-cultivation pots. After power-on, the intelligent operation panel is debugged to start the intelligent water and fertilizer medicine system and the intelligent temperature control system, and according to the monitoring data of the water and fertilizer sensor and the temperature sensor, the water and fertilizer medicine electromagnetic valve and the temperature control regulator are automatically controlled through the intelligent operation panel to provide suitable water and fertilizer conditions and temperature for the germination and growth of the shrub seeds on the combined pre-cultivation pots, and timely medication is provided according to the shrub seedling pest situation.

[0029] Step three: After the shrub seeds in the combined pre-planting pots germinate and grow to a certain height, the grass seeds screened in step one are treated with disinfection, germination acceleration, etc. and then sown in the herb growth holes in the combined pre-planting pots. The intelligent operation panel automatically controls the water, fertilizer, pesticide electromagnetic valves and temperature control regulators according to the monitoring data of the water and fertilizer sensors and temperature sensors to provide suitable water, fertilizer conditions and temperature for the germination and growth of the grass seeds and the growth of the shrubs in the combined pre-planting pots, and timely medication is provided according to the shrub and herb pest conditions.

[0030] Step four: When the shrubs and herbs in the combined pre-planting pots grow into finished seedlings, the folded finished seedling transfer device is opened, and the combined pre-planting pots are placed in the finished seedling placing holes. The finished seedlings pre-cultured are transferred to the ecological restoration site of the power transmission and transformation project through the finished seedling transfer device.

[0031] Step five: In the power transmission and transformation project ecological restoration slope or other restoration scene, build planting holes with gravel and soil, the hole depth is 90-150mm, and the hole diameter is >50mm. Place the combined pre-planting pots in the planting holes, arrange the depth and direction of the finished seedlings, and fix and cover them with soil. If it is winter planting, non-woven fabric and straw can be covered on the planting holes to increase the temperature and conserve soil moisture.

[0032] Step six: After the combined pre-planting pots and the finished seedlings on the pots are planted, a certain amount of water is poured to fix the roots on the same day. After that, according to the soil moisture and temperature and humidity in the planting area, fine maintenance is carried out to ensure the survival of the finished seedlings. After three months, simple maintenance is carried out according to the growth situation to improve the stress resistance of the plants.

[0033] As shown in Figure 5 A shrub and herb combined pre-cultivation method for power transmission and transformation project ecological restoration, using the device, comprising the following steps: S101, obtain seedling growth environment data through a sensor network, the environment data including water, nutrient concentration and temperature information; S102, filter and detect anomalies of the environment data to obtain an effective environment data set; S103, analyze the deviation of seedling growth demand and environmental conditions according to the effective environment data set, and determine an environmental parameter adjustment scheme; S104, dynamically calculate the water and fertilizer supply ratio and temperature control parameters through an adjustment algorithm to generate comprehensive environment adjustment instructions; S105, transmit the comprehensive environment adjustment instructions to an execution terminal for environment intervention to obtain adjusted environment state data; S106, continuously monitor seedling growth indicators, predict environment adjustment effects and optimize intervention schemes.

[0034] In step S101, the sensor network collects real-time data of water, nutrient concentration and temperature in the seedling growth environment. For multi-point monitoring of soil humidity, nutrient content and air temperature, the collected raw data is preliminarily screened according to the preset threshold range to obtain an effective environmental data set meeting the analysis requirements.

[0035] The sensor network is deployed at multiple monitoring points of the combined pre-pot, collects real-time data of water, nutrient concentration and temperature, and transmits the data to the data center to form an environmental information set. The data is extracted from the environmental data subset according to the monitoring point identifier to form a multi-point environmental data group.

[0036] In step S102, the environmental data is screened and detected for abnormalities to obtain an effective environmental data set, including the following steps: the water, nutrient concentration and temperature information in the environmental data is preliminarily screened using a preset threshold range; if an abnormal value is detected, the abnormal data is replaced by a sliding window mean value; the data is extracted according to the monitoring point to form a multi-point environmental data group; a time series prediction model is used to calculate the trend slope, and if the slope exceeds the preset range, it is marked as an abnormal trend; the deviation value of the abnormal data point is matched with an adjustment instruction to generate a control instruction data set.

[0037] In step S103, the deviation of seedling growth demand and environmental condition is analyzed according to the effective environmental data set to determine an environmental parameter adjustment scheme, including: extracting water and fertilizer demand and temperature condition data from the effective environmental data set; comparing with a pre-constructed seedling growth model to calculate a deviation value; if the deviation value exceeds the preset threshold range, it is determined that the environmental parameters are unbalanced; specific deviation quantitative data is obtained through data screening; support vector machine algorithm is used to classify potential impact evaluation data to determine the adjustment priority and match the control strategy.

[0038] The data related to seedling growth is obtained from an environmental data set, and the water and fertilizer requirements and temperature conditions are preliminarily extracted to obtain an initial environmental parameter set. The initial environmental parameter set is processed by data cleaning and formatting to obtain a structured environmental parameter set. According to the structured environmental parameter set, the water and fertilizer requirements and temperature conditions are combined with the preliminarily constructed seedling growth model to determine the deviation value, and the deviation quantification preliminary result is obtained. If the deviation quantification preliminary result exceeds the preset threshold range, it is determined that the environmental parameters are unbalanced, and the specific deviation quantification data is obtained through data screening and abnormal point detection. For the specific deviation quantification data, the influence range of parameter imbalance is analyzed by combining the historical records in the seedling growth model to obtain potential impact assessment data. The support vector machine algorithm is used to classify the potential impact assessment data to determine the environmental parameters that need to be adjusted in priority, and the adjustment priority ranking result is obtained. According to the adjustment priority ranking result, the corresponding control strategy is matched through the preset rule base to determine the adjustment scheme data for the water and fertilizer requirements and temperature conditions.

[0039] In processing the data related to seedling growth, the preliminary extraction of the water and fertilizer requirements and temperature conditions can be classified and arranged through the data collected by the sensor. Assuming that in a seedling cultivation base, the sensor records the soil moisture content, nitrogen, phosphorus and potassium concentration and air temperature data every hour, and the preliminary extraction forms an initial environmental parameter set. These data may contain noise or missing values, so data cleaning is needed, such as removing obviously abnormal water values such as negative values, and filling the missing values by the average value of the previous and next time points to obtain a structured environmental parameter set.

[0040] In step S104, the water and fertilizer supply ratio and temperature control parameters are dynamically calculated by adjusting the algorithm, including: obtaining real-time error information from the deviation data; using a proportional-integral-derivative controller to dynamically adjust the error data to determine the supply ratio of water and nutrients; if the adjustment value exceeds the preset threshold range, secondary correction is performed; the matching degree is verified by gradient descent method to optimize the matching scheme; the execution parameters are updated according to the final matching scheme, and the running state of the supply equipment is adjusted through the closed-loop control system to obtain real-time feedback data.

[0041] For the deviation quantification data obtained in step S103, the adjustment algorithm of the water and fertilizer supply module is called, and the proportional-integral-derivative control method based on real-time error feedback is used to dynamically calculate the optimal supply ratio of water and nutrients to obtain a water and fertilizer matching scheme suitable for the current seedling growth stage.

[0042] The real-time error data is obtained from the deviation quantification module, the real-time error data is processed through a pre-established linear regression model, it is judged whether there is a significant deviation fluctuation, and a preliminary error classification result is obtained. According to the preliminary error classification result, a PID controller is used to dynamically adjust and calculate the classified error data, and a preliminary supply ratio adjustment value of water and nutrients is determined. According to the preliminary supply ratio adjustment value, the preset demand parameters of the seedling growth stage are analyzed, if the adjustment value exceeds the preset threshold range, the ratio value is corrected again, and the corrected supply ratio data is obtained. According to the corrected supply ratio data, the matching degree of water supply and nutrient ratio is verified, if the matching degree does not reach the preset standard, the gradient descent method is used for optimization iteration to determine the final matching scheme. After obtaining the final matching scheme, the execution parameters of the water and fertilizer supply module are updated in real time, the running state of the supply equipment is dynamically adjusted through the closed-loop control system, and the real-time feedback data after execution is obtained. According to the real-time feedback data, the change trend of the seedling growth state is analyzed, if the feedback data indicates that the growth state does not reach the expectation, the deviation quantification module is triggered to reacquire data, and it is judged whether there is a new error source.

[0043] According to the obtained water and fertilizer matching scheme, the temperature adjusting module is linked, the preset suitable temperature range for seedling growth is combined, the difference between the current environment temperature and the target temperature is calculated, and if the difference exceeds the preset safety interval, the temperature adjusting requirement of the heating or cooling equipment is obtained.

[0044] The current temperature data is obtained from the environment monitoring equipment, the current temperature data is compared with the preset suitable temperature range, and the absolute value of the temperature difference is calculated. If the absolute value of the temperature difference exceeds the preset threshold, the temperature adjusting requirement is triggered. According to the size of the temperature difference, the power percentage of the heating equipment is determined, and the power percentage is linearly increased with the increase of the difference. The state of the heating equipment is checked, if the state is standby or running, a control instruction is sent, the control instruction includes target temperature, running time and power percentage. The executed temperature data is obtained from the heating equipment, the sampling frequency of the temperature data is fixed interval. The new difference between the executed temperature data and the target temperature is calculated, if the new difference exceeds the preset deviation range, the power parameter is recalculated by using the PID controller, and the proportional coefficient and integral time of the PID controller are preset values. The power percentage and running time in the control instruction are updated and sent to the heating equipment. The time stamp, initial temperature, equipment parameter and final temperature in the adjusting process are recorded and saved as a log file in a preset format. If the temperature does not enter the target range after continuous adjustment for several times, the adjustment is stopped and the abnormal state of the heating equipment is marked.

[0045] In step S105, the comprehensive environment adjustment instruction is transmitted to the execution terminal for environment intervention, and adjusted environment state data is obtained, including: analyzing the adjustment parameters based on the classified environment demand data set using a decision tree model; correcting the parameters by comparing with historical data to generate a comprehensive environment adjustment scheme; transmitting the adjustment instruction to the execution terminal to obtain a confirmation signal; adjusting the environment through an automatic device and extracting key indicator feedback data; if the indicator does not reach the preset standard, a secondary adjustment instruction is generated for further adjustment.

[0046] For the temperature adjustment demand and water and fertilizer ratio scheme obtained in step S104, a comprehensive environment adjustment instruction is generated and transmitted to the execution terminal. The automatic irrigation and temperature control equipment intervenes in the seedling growth environment in real time to obtain an adjusted environment state data set.

[0047] From the pre-established database, the state data of the seedling growth environment is obtained, and the temperature adjustment and water and fertilizer ratio demand are classified to obtain a classified environment demand data set. Based on the classified environment demand data set, the specific parameters of temperature adjustment and water and fertilizer ratio are analyzed using a preset decision tree model to determine a preliminary environment adjustment parameter combination. By comparing the preliminary environment adjustment parameter combination with historical environment state data, if the comparison result exceeds a preset threshold range, the parameters are corrected to obtain an adjusted comprehensive environment adjustment scheme. For the adjusted comprehensive environment adjustment scheme, specific environment adjustment instructions are generated and transmitted to the execution terminal to obtain a confirmation signal after instruction transmission. Based on the confirmation signal, the automatic irrigation and temperature control equipment adjusts the seedling growth environment in real time to obtain adjusted environment state feedback data. Key indicators are extracted from the adjusted environment state feedback data, and if the key indicators do not reach a preset standard, a secondary adjustment instruction is generated and transmitted to the execution terminal for further adjustment to determine whether the final environment state meets the demand. Through continuous monitoring of the final environment state data, long-term environment change trend data is obtained and stored in the database.

[0048] In step S106, the seedling growth indicators are continuously monitored, the environment adjustment effect is predicted, and the intervention scheme is optimized, including: extracting germination rate, leaf speed, and root development data from the adjusted environment state data; calculating the mean value using a sliding window method and extracting the trend item using a decomposition method; calculating the correlation coefficient of environmental factors and growth indicators to determine strong influencing factors; predicting the growth trend using a time series model; if the prediction result does not reach a preset standard, adjusting the temperature and humidity parameters to generate iterated adjustment data.

[0049] According to the adjusted environmental state data set obtained in step S105, the seedling growth indicators, including germination rate, leaf growth speed and root development, are continuously monitored, and time series analysis method is used to predict the trend of the monitoring data to obtain prediction data of whether the environmental regulation reaches the preset balance standard.

[0050] From the adjusted environmental state data set, the germination rate, leaf speed and root development monitoring values of the seedlings are extracted, aligned by minute time stamp, and an initial monitoring data set with time marker is generated. According to the initial monitoring data set, a sliding window method is used to calculate the hourly average of the germination rate, leaf speed and root development, and an hourly average data set is obtained. For the hourly average data set, an STL decomposition method is applied to extract the seasonal and trend items, and a growth indicator trend data is generated. According to the growth indicator trend data, the Pearson correlation coefficients of environmental temperature, humidity and each growth indicator are calculated, and if the absolute value of the correlation coefficient is greater than a preset threshold, it is determined as a strong influencing factor, and an environmental influence analysis result is obtained. For the growth indicator trend data, if the germination rate trend fluctuation exceeds a preset threshold, the temperature control parameters are adjusted by a fixed step, and an updated environmental regulation data table is generated. Based on the environmental regulation data table, the latest monitoring data is input into the ARIMA model to predict the leaf speed change in a future period of time, and a prediction result data table is obtained. If the root development growth rate in the prediction result data table is lower than a preset standard, the temperature and humidity parameter adjustment link is returned, and an iterated environmental regulation data is generated.

[0051] For the obtained prediction data, if it is judged that the environmental regulation does not reach the preset balance standard, an error feedback based iterative optimization method is used to re-adjust the matching parameters of water and fertilizer supply and temperature control combined with the current deviation data, and an optimized environmental intervention scheme is obtained.

[0052] From the monitoring data, the current environmental temperature and water and fertilizer concentration data are obtained, and the temperature deviation value and concentration deviation value are determined by comparing the environmental temperature and water and fertilizer concentration data with the preset threshold interval. According to the temperature deviation value and concentration deviation value, a PID algorithm is used to calculate the adjustment amount of water and fertilizer supply rate and heating power, and preliminary adjustment parameters are obtained. Gradient descent method is used to iteratively optimize the preliminary adjustment parameters, and the temperature fluctuation rate and nutrient absorption rate of each iteration are recorded. If the temperature fluctuation rate and nutrient absorption rate do not reach the preset threshold range, the parameters are updated based on the PID output increment, and the new water and fertilizer supply amount and heating power are calculated. Through rule engine matching, a preset parameter combination table is generated, and water pump speed and heater switch instructions are generated. After verifying whether the instruction response time meets the requirements, an execution scheme is output. The execution scheme is loaded on the digital twin platform, and the temperature standard deviation and nutrient distribution uniformity are monitored in real time. If the continuous sampling data reaches the preset standard for multiple times, the optimization process is terminated, otherwise the PID adjustment amount is recalculated according to the monitoring data.

[0053] According to the obtained optimized environmental intervention scheme, the driving execution terminal is driven to perform secondary adjustment.

[0054] The optimization scheme data generated in the acquisition step is parsed for the environmental intervention content in the optimization scheme data, key parameters are extracted, and the expected target of the intervention effect is determined. According to the expected target, the control module drives the execution terminal to issue an instruction, adjusts the response state of the execution terminal, and obtains preliminary adjusted running data. Through the preliminary adjusted running data, real-time environmental change information is collected in combination with the feedback mechanism to determine whether the adjustment amplitude meets the preset threshold. If the adjustment amplitude exceeds the preset threshold, a dynamic updating process is triggered. Using the dynamic updating process, for the case where the adjustment amplitude exceeds the preset threshold, the control precision parameter is recalculated through the PID control algorithm to obtain updated intervention instructions and determine the specific content of the secondary adjustment. According to the specific content of the secondary adjustment, the updated intervention instructions are transmitted to the execution terminal to drive the execution terminal to perform parameter calibration and obtain a calibrated running state. Through the calibrated running state, the environmental change is continuously monitored in combination with the feedback mechanism to determine whether the control precision meets the pre-established expected standard. If the control precision does not meet the expected standard, the dynamic updating process is cyclically executed to obtain final running data. The final running data is stored and archived to determine the final effect of environmental intervention.

[0055] In the description of the present application, it should be noted that the terms "left", "right", "up", "down" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, therefore cannot be understood as a limitation on the present application.

[0056] In the description of the present application, it should be noted that unless otherwise explicitly specified and limited, the terms "mounting", "connecting", "connecting" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be electrically connected, it can be directly connected, or it can be indirectly connected through an intermediate medium, it can be the communication inside two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

Claims

1. A power transmission project ecological restoration shrub and herbaceous combination pre-cultivation device, characterized in that, The utility model relates to a seedbed frame (1), a plurality of layers of seedbed (2) arranged on the seedbed frame (1), a plurality of combined pre-cultivation pots (3) arranged on the seedbed (2), and further comprising a water and fertilizer system and a temperature control system.

2. The bush-grass combination pre-cultivation device for ecological restoration of a power transmission project according to claim 1, characterized in that, The combined pre-cultivation pots (3) comprise a plurality of shrub growth holes (4) and a plurality of herb growth holes (5).

3. The bush-grass combination pre-cultivation device for ecological restoration of a power transmission project according to claim 2, characterized in that, The shrub growth holes (4) and the herb growth holes (5) are distributed at intervals, and the hole depth and diameter of the shrub growth holes (4) are greater than those of the herb growth holes (5).

4. The bush-grass combination pre-cultivation device for ecological restoration of a power transmission project according to claim 1, characterized in that, The seedbed (2) is uniformly provided with a plurality of sunken placement grooves (6) for placing the combined pre-cultivation pots (3).

5. The bush-grass combination pre-cultivation device for ecological restoration of a power transmission project according to claim 1, characterized in that, The water and fertilizer system comprises pipes (7) symmetrically arranged on the seedbed (2) and a lifting rod (8) arranged between the two pipes (7), both ends of the pipe (7) are provided with rotating frames (9) rotatably connected between the lower end and the seedbed (2), the lifting rod (8) is symmetrically provided with connecting rods (10) on both sides, the lower end of the connecting rod (10) is rotatably connected with the lifting rod (8), and the upper end of the connecting rod (10) is rotatably connected with the corner position of the rotating frame (9).

6. The bush-grass combination pre-cultivation device for ecological restoration of a power transmission project according to claim 5, characterized in that, The seedbed frame (1) is provided with a lifting frame (11), and both ends of the lifting rod (8) are connected with the corresponding legs of the lifting frame (11).

7. The bush-grass combination pre-cultivation device for ecological restoration of a power transmission project according to claim 6, characterized in that, The upper end of the seedbed frame (1) is provided with a cross beam (12), the cross beam (12) is provided with a lifting cylinder (13), and the piston rod end of the lifting cylinder (13) is connected with the upper end of the lifting frame (11).

8. A power transmission project ecological restoration shrub and herbaceous combination pre-cultivation method using the device of claims 1 to 7, characterized by, The method comprises the following steps: S101, obtaining seedling growth environment data through a sensor network, wherein the environment data comprises moisture, nutrient concentration and temperature information; S102, screening and anomaly detection are performed on the environment data to obtain an effective environment data set; S103, analyzing the deviation of seedling growth demand and environmental conditions according to the effective environment data set to determine an environmental parameter adjustment scheme; S104, dynamically calculating the water and fertilizer supply ratio and temperature control parameters through an adjustment algorithm to generate a comprehensive environment adjustment instruction; S105, transmitting the comprehensive environment adjustment instruction to an execution terminal to intervene in the environment, and obtaining adjusted environment state data; and S106, continuously monitoring seedling growth indicators, predicting the environment adjustment effect and optimizing the intervention scheme.

9. The power transmission line project ecological restoration shrub and herbaceous plant combination pre-cultivation method of claim 8, wherein, In step S103, the following steps are mainly included: Extracting water and fertilizer demand and temperature condition data from the effective environment data set; comparing with a pre-constructed seedling growth model to calculate a deviation value; if the deviation value exceeds a preset threshold range, it is determined that the environmental parameters are unbalanced; obtaining specific deviation quantitative data through data screening; classifying potential influence evaluation data by using a support vector machine algorithm to determine an adjustment priority and match a control strategy.

10. The power transmission line project ecological restoration shrub and herbaceous combination pre-cultivation method of claim 8, wherein, In step S104, the following steps are mainly included: Obtaining real-time error information from the deviation data; dynamically adjusting the error data by using a proportional-integral-derivative controller to determine the supply ratio of water and nutrients; if the adjustment value exceeds a preset threshold range, secondary correction is performed; optimizing the matching degree by using a gradient descent method; updating the execution parameters according to the final matching scheme, adjusting the running state of the supply equipment through a closed-loop control system, and obtaining real-time feedback data.

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