Real-time sensing and supplementing technology for moisture in vegetation concrete

Abstract

The invention discloses a technology for sensing and supplementing moisture in vegetation concrete in real time, and relates to the technical field of vegetation concrete vegetation irrigation. Through cooperative work of the soil moisture content real-time monitoring module and the intelligent feedback spraying device, accurate monitoring and real-time adjustment of moisture in the vegetation concrete are achieved. The bio-electricity signal sensing unit is used for capturing an electric signal generated by interaction of a root system and water, the signal processing and analyzing unit is used for calculating the soil water content in real time, and an irrigation system of the intelligent feedback spraying device is triggered according to a set threshold value so as to achieve automatic water supplementing. The multi-layer sensor deployment system carries out weighting processing on the moisture requirements of different layers of soil according to the special hierarchical structure of the plant-growing concrete, and it is ensured that the moisture content of each layer of soil is accurately monitored and adjusted. By means of the technology, automatic monitoring and adjusting of the moisture in the vegetation concrete can be achieved, and remarkable environmental protection benefits and economic values are achieved.

Description

Technical Field

[0001] This patent relates to the technical field of vegetation irrigation for vegetative concrete, and specifically relates to a technology for real-time moisture perception and replenishment inside vegetative concrete. Background Art

[0002] Vegetative concrete is a new type of green building material. By combining planting soil and concrete, it forms an ecological slope protection brick that can support plant growth and is currently widely used in fields such as slope reinforcement, urban greening, and ecological restoration. The unique structure of vegetative concrete brings some challenges while providing ecological benefits and stabilizing slopes, especially how to efficiently and accurately replenish the moisture inside the soil to ensure the normal growth of vegetation.

[0003] Vegetative concrete consists of multiple layers, including the planting soil layer, the vegetative concrete layer, and the original soil layer at the bottom. Due to the different soil properties and structural characteristics of each layer, there are significant differences in its water permeability and water retention capacity, resulting in large differences in the water requirements of plants for each layer. The main water absorption part of plants is located in the root hair zone of the root system, that is, the area close to the root tip, and the water absorption mainly depends on the interaction between the root tip and the surrounding soil. Since the plant root tips are mainly distributed between the vegetative concrete layer and the original soil layer, and less in the surface planting soil layer, the traditional artificial timing and quantitative irrigation method cannot adapt to the complex soil structure of vegetative concrete, often leading to over-irrigation or under-irrigation of vegetation and affecting plant growth.

[0004] Most of the existing technologies for monitoring the moisture inside vegetation soil rely on methods such as soil moisture sensors and soil sampling and testing. However, these technologies obviously have problems such as insufficient monitoring accuracy and limited monitoring. Although traditional soil moisture sensors can measure the moisture condition of a certain layer inside the soil, they cannot comprehensively reflect the changes in multi-layer moisture inside vegetative concrete, and the response speed and durability of the sensors are often affected by environmental factors. At the same time, although the soil sampling and testing technology can achieve accurate detection of moisture in different layers, it cannot rely on it to achieve continuous monitoring of the moisture inside the soil, and it will waste a large amount of human and material resources.

[0005] The interaction between plant roots and soil moisture will generate certain bioelectric signals. That is, during the water absorption process of plant roots, weak electric signals will be generated through ion exchange and potential changes. These electric signals are closely related to the soil moisture condition and can reflect the soil moisture degree and the plant's water requirements in real time. As the soil moisture changes, the electric signals generated by the interaction between plant roots and water will also change, and this change can be captured by a highly sensitive potential sensor.

[0006] Due to its special multi-layered structure, the internal moisture of vegetative concrete is often unevenly distributed. Therefore, the management and regulation of moisture must simultaneously meet the precise control of soil moisture at different levels. Traditional moisture sensor monitoring technologies cannot meet this requirement. Therefore, there is an urgent need for a multi-layer moisture monitoring technology to achieve real-time monitoring of the soil moisture at different levels of vegetative concrete, and then perform intelligent feedback irrigation based on the moisture changes at different levels.

[0007] Existing irrigation technologies often irrigate at fixed times and quantities manually. This traditional method lacks flexibility and cannot be adjusted according to the actual moisture needs of plants. Therefore, an irrigation system that combines real-time monitoring and intelligent feedback of soil moisture is the future development trend of irrigation technology. It is necessary to be able to automatically start the irrigation system based on the monitored moisture data to ensure the accurate and timely replenishment of soil moisture.

[0008] Based on the above existing problems, this patent proposes a real-time soil moisture perception and replenishment technology based on bioelectric signals. This technology deploys multi-layer sensors inside vegetative concrete and combines the bioelectric signals generated by the interaction between plant roots and soil moisture to real-time monitor the moisture status of the soil. The algorithm module and potential signal analysis module of the signal processing and analysis unit are used to real-time calculate the water content inside the soil. In addition, this technology uses an intelligent feedback spraying device, which can automatically start the feedback irrigation system to replenish the soil moisture when the lack of soil moisture is detected, thus realizing precise moisture management. Summary of the Invention

[0009] Object of the Invention: The object of this patent is to provide a real-time moisture perception and replenishment technology for the interior of vegetative concrete based on bioelectric signals. Through the deployment of multi-layer sensors and an intelligent feedback regulation system, it realizes precise monitoring of soil moisture and automatic water replenishment, promoting plant growth.

[0010] This technology solves the following problems: By using this technology, it solves the problems of insufficient accuracy, limited monitoring, and inflexible irrigation control existing in the existing vegetative concrete moisture management technology. By adopting the real-time moisture perception technology based on bioelectric signals, combined with the deployment of multi-layer sensors and an intelligent feedback regulation system, it realizes comprehensive and real-time monitoring of the moisture conditions of different soil layers in vegetative concrete, and automatically adjusts the irrigation system according to the actual moisture needs, avoiding the problems of over-irrigation or water shortage, thus improving the utilization efficiency of water resources and ensuring that the moisture needs of plants at different growth stages are accurately met.

[0011] Technical solution: To achieve the above object, a real-time moisture sensing and replenishment technology for vegetative concrete as described in this patent includes a real-time soil moisture content monitoring module. The real-time soil moisture content monitoring module is evenly distributed in the planting soil layer, vegetative concrete layer, and original soil layer through a multi-level sensor deployment system. Among them, the real-time soil moisture content monitoring module includes a bioelectric signal sensing unit and a signal processing and analysis unit. The bioelectric signal sensing unit monitors moisture through the electric signals generated by the interaction between plant roots and soil moisture. The signal processing and analysis unit amplifies the weak electric signals through a signal amplifier and analyzes the amplified electric signals in real time through a built-in algorithm, and then timely irrigates the areas that need water replenishment through an intelligent feedback spraying device.

[0012] Preferably, the bioelectric signal sensing unit includes a potential sensor and a signal amplification module. Among them, the potential sensor is used to capture the interaction between plant roots and soil moisture to generate weak electric signals, thereby reflecting the soil moisture state. The signal amplification module is used to amplify the weak electric signals collected from the potential sensor to ensure that the signals can be transmitted to the signal processing and analysis unit.

[0013] Furthermore, the signal processing and analysis unit includes an algorithm module and a potential signal analysis module. Among them, the algorithm module calculates the soil moisture content based on the range interval of the potential change signal. The potential signal analysis module is used to judge the potential change rate, and further classify and evaluate the soil moisture degree through the analysis of the potential signal change rate.

[0014] Preferably, the real-time soil moisture content monitoring module judges the soil moisture state according to the range and change rate of the potential signal and triggers the start of the intelligent feedback spraying device. Among them, the intelligent feedback spraying device includes an irrigation control system. When it is detected that the potential signal is lower than the set threshold or the change rate is drastic, the irrigation system is automatically started to timely replenish water to ensure that the plants in the vegetative concrete can obtain the required water.

[0015] Furthermore, the intelligent feedback spraying device is connected to the real-time soil moisture content monitoring module in real time and can accurately adjust the water supply according to the monitored soil moisture changes.

[0016] Among them, the algorithm module in the signal processing and analysis unit calculates the soil moisture content based on the range interval of the potential change signal. When the potential of the plant roots is between -50mV and -150mV, it indicates that the soil moisture is sufficient; when the potential drops to between -150mV and -250mV, it indicates that the soil starts to dry and needs intermittent water replenishment; when the potential is lower than -250mV, it indicates that the soil moisture is insufficient and the water absorption of the plant is restricted, and immediate water replenishment is required.

[0017] Preferably, the potential signal analysis module in the signal processing and analysis unit evaluates the soil moisture content according to the change rate of the potential signal. When the soil is sufficiently moist, the change rate is relatively stable; when the soil is slightly drought-stricken, the change rate is from 0.5 mV / h to 3 mV / h; when the soil is severely water-deficient, the change rate is above 3 mV / h.

[0018] Furthermore, since the vegetative concrete is a multi-layer system, the present technology realizes real-time monitoring of the soil moisture in different layers of the vegetative concrete through a multi-layer sensor deployment system, and gives different weight treatments to the moisture changes in different layers. Among them, the weight of the planting soil layer with less root tip distribution of plants is 20%; the weight of the vegetative concrete layer with slightly more root tip distribution of plants is 30%; the weight of the original soil layer with the most root tip distribution of plants is 50%.

[0019] Compared with the prior art, the present technology has the following advantages:

[0020] By combining the bioelectric signals generated by plant roots with the multi-layer sensor deployment technology, the present technology can monitor the moisture status of the soil in each layer of the vegetative concrete in real time and comprehensively, and can more accurately reflect the complex moisture changes inside the vegetative concrete compared with traditional single sensors.

[0021] Using bioelectric signals for moisture monitoring avoids the problems that traditional physical sensors are easily affected by environmental interference or damaged, and realizes long-term and stable non-destructive monitoring.

[0022] The present technology is linked with the intelligent feedback spraying device and the real-time soil moisture content monitoring module, and can automatically start the irrigation system when the soil moisture is lower than the set threshold, realizing precise water supply and avoiding the limitations of the traditional irrigation system for timed and quantitative irrigation.

[0023] Through the deployment of multi-layer sensors, the present invention can adapt to the special multi-layer structure of the vegetative concrete, accurately evaluate the moisture changes in different layers of soil, and ensure that the water requirements of plant roots in each layer of soil are met. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a schematic diagram of the overall device for real-time sensing and replenishment of moisture inside the vegetative concrete of the present invention:

[0025] Figure 2 It is a schematic diagram of the real-time soil moisture content monitoring module of the present invention. DETAILED DESCRIPTION OF THE INVENTION

[0026] The following further describes the present invention in conjunction with the drawings and embodiments.

[0027] A real-time moisture perception and replenishment technology for vegetative concrete, including a real-time soil moisture monitoring module 1, which is evenly distributed in the planting soil layer 3, the vegetative concrete layer 4, and the original soil layer 5 through a multi-level sensor deployment system 2; among them, the real-time soil moisture monitoring module 1 includes a bioelectric signal sensing unit 7 and a signal processing and analysis unit 8. The bioelectric signal sensing unit 7 monitors moisture through the electric signals generated by the interaction between plant roots and soil moisture. The signal processing and analysis unit 8 amplifies the weak electric signals through a signal amplifier and performs real-time analysis on the amplified electric signals through a built-in algorithm, and then timely irrigates the areas that need water replenishment through an intelligent feedback spraying device 6.

[0028] The bioelectric signal sensing unit 7 uses the weak electric signals generated by the interaction between plant roots and soil moisture to sense the moisture changes in the soil. The potential sensor captures these weak electric signals in real time and transmits them to the signal amplification module for amplification processing. The amplified electric signals will enter the signal processing and analysis unit 8. The built-in algorithm module and the potential signal analysis module analyze the moisture state of the soil in real time according to the range and change rate of the potential signals, and calculate the water content of the soil. On this basis, it accurately judges whether the soil needs irrigation, and triggers a feedback mechanism through the intelligent feedback spraying device 6 to start the irrigation system in time for the areas that need water replenishment.

[0029] This technology uses the signal processing and analysis unit 8 to realize the processing and analysis of the bioelectric signals generated by the interaction between plant roots and soil moisture, so as to indirectly reflect the water content state inside the soil. Specifically, the algorithm module in the signal processing and analysis unit 8 calculates the water content of the soil according to the range interval of the potential change signals. When the potential of the plant roots is between -50 mV and -150 mV, it means that the soil moisture is sufficient; when the potential drops to between -150 mV and -250 mV, it means that the soil starts to dry and needs intermittent water replenishment; when the potential is lower than -250 mV, it means that the soil moisture is insufficient and the water absorption of the plant is restricted, and immediate water replenishment is required. The potential signal analysis module in the signal processing and analysis unit 8 evaluates the soil moisture content according to the change rate of the potential signals. When the soil moisture is sufficient, the change rate is relatively stable; when the soil is slightly drought, the change rate is 0.5 mV / h to 3 mV / h, and intermittent water replenishment is required; when the soil is severely water-deficient, the change rate is above 3 mV / h, and immediate water replenishment is required.

[0030] In terms of water replenishment, this technology introduces an intelligent feedback spraying device 6. This device is connected to the real-time soil moisture content monitoring module 1. When the monitored potential signal is lower than the set threshold or the change rate exceeds the preset range, the intelligent feedback spraying device 6 will automatically activate the irrigation system to accurately replenish water. The intelligent feedback spraying device 6 can flexibly adjust the water supply according to the water requirements of different soil layers, thus avoiding over-irrigation or water shortage situations.

[0031] This technology adopts a multi-level sensor deployment system 2 to adapt to the multi-level structure of vegetation concrete. Since vegetation concrete usually consists of a planting soil layer 3, a vegetation concrete layer 4, and an original soil layer 5, and different layers of soil have different water requirements, the real-time soil moisture content monitoring module 1 is deployed in different soil layers, and the water conditions of different layers of soil are comprehensively evaluated by means of weighted calculation. Specifically, the weight of the planting soil layer 3 is 20%, the weight of the vegetation concrete layer 4 is 30%, and the weight of the original soil layer 5 is 50%. Through this distribution of multi-level sensors, the present invention can achieve more comprehensive and accurate water monitoring, ensuring that the system can dynamically adjust the water supply according to the actual needs of each layer of soil.

[0032] The real-time soil moisture content monitoring module 1 and the intelligent feedback spraying device 6 together constitute a closed-loop control system, which monitors, analyzes, and adjusts the water supply in real time. The system can automatically evaluate the water conditions of the soil according to the potential signal detected by the sensor 7, and replenish water through the intelligent feedback spraying device 6, thus ensuring that the plants in the vegetation concrete can obtain sufficient water under different seasons and environmental conditions.

Claims

1. A real-time sensing and replenishing technology for internal moisture in planted concrete, characterized by: The invention comprises a soil moisture content real-time monitoring module (1), wherein the soil moisture content real-time monitoring module (1) is evenly distributed in a planting soil layer (3), a planting concrete layer (4), and an original soil layer (5) through a multi-level sensor deployment system (2); wherein the soil moisture content real-time monitoring module (1) comprises a bioelectric signal sensing unit (7) and a signal processing and analysis unit (8), wherein the bioelectric signal sensing unit (7) monitors moisture through an electrical signal generated by the interaction between plant roots and soil moisture, and the signal processing and analysis unit (8) amplifies weak electrical signals through a signal amplifier, and performs real-time analysis on the amplified electrical signals through a built-in algorithm, thereby timely irrigating the area requiring water replenishment through an intelligent feedback spraying device (6).

2. The real-time sensing and replenishing technology for internal moisture of planted concrete according to claim 1 is characterized in that: The bioelectric signal sensing unit (7) includes a potential sensor and a signal amplification module. The potential sensor is used to capture the interaction between plant roots and soil moisture to generate weak electrical signals, thereby reflecting the soil moisture state; the signal amplification module is used to amplify the weak electrical signals collected from the potential sensor to ensure that the signals can be transmitted to the signal processing and analysis unit (8).

3. The real-time sensing and replenishing technology for internal moisture in planted concrete according to claim 1 is characterized by: The signal processing and analysis unit (8) comprises an algorithm module and a potential signal analysis module, wherein the algorithm module estimates the moisture content of the soil according to the range interval of the potential change signal; the potential signal analysis module is used to determine the potential change rate, and further classifies and evaluates the moisture content of the soil by analyzing the potential signal change rate.

4. The real-time sensing and replenishing technology for internal moisture in planted concrete according to claims 1 and 3 is characterized in that: The soil moisture content real-time monitoring module (1) determines the moisture state of the soil according to the range and change rate of the potential signal, and triggers the start of the intelligent feedback spraying device (6); wherein the intelligent feedback spraying device (6) includes an irrigation control system, and when it is detected that the potential signal is lower than a set threshold or the change rate is drastic, the irrigation system is automatically started to replenish water in time, thereby ensuring that the plants in the vegetation concrete can obtain the required water.

5. The real-time sensing and replenishing technology for internal moisture in planted concrete according to claims 1 and 4 is characterized in that: The intelligent feedback spraying device (6) is connected to the soil moisture content real-time monitoring module (1) in real time, and can accurately adjust the water supply according to the monitored soil moisture changes.

6. The real-time sensing and replenishing technology for internal moisture in planted concrete according to claims 1 and 3 is characterized in that: The algorithm module in the signal processing and analysis unit (8) estimates the moisture content of the soil based on the range of the potential change signal. If the potential of the plant root is between -50mV and -150mV, it means that the soil has sufficient moisture. If the potential drops to between -150mV and -250mV, it means that the soil begins to dry and needs intermittent water replenishment. If the potential is lower than -250mV, it means that the soil is insufficient in moisture and the plant's water absorption is limited, and immediate water replenishment is required.

7. The real-time sensing and replenishing technology for internal moisture in planted concrete according to claims 1 and 3 is characterized in that: The potential signal analysis module in the signal processing and analysis unit (8) evaluates the soil moisture content according to the rate of change of the potential signal. When the soil has sufficient moisture, the rate of change is relatively stable; when the soil is slightly dry, the rate of change is 0.5mV / h to 3mV / h; when the soil is seriously lacking in water, the rate of change is above 3mV / h.

8. The real-time sensing and replenishing technology for internal moisture in planted concrete according to claim 1 is characterized in that: Since the vegetated concrete is a multi-layer system, the present technology realizes real-time monitoring of soil moisture at different layers of the vegetated concrete through a multi-layer sensor deployment system (2), and gives different weights to moisture changes at different layers, wherein the planting soil layer (3) with fewer plant root tips has a weight of 20%; the vegetated concrete layer (4) with slightly more plant root tips has a weight of 30%; and the original soil layer (5) with the most plant root tips has a weight of 50%.

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