Automatic bacteria-algae mixed control system and method for salinized soil remediation and application of automatic bacteria-algae mixed control system and method

Abstract

The invention relates to an automatic bacteria-algae mixed control system and method for salinized soil remediation and application, and belongs to the technical field of soil remediation. The system comprises a movable site construction system, a bacteria-algae mixed culture reactor and an automatic control system; the automatic control system monitors and controls various parameters of the bacteria-algae mixed culture reactor to ensure stable operation of the bacteria-algae mixed culture reactor. The method comprises the steps that a movable site construction system drives the system to walk to traverse a field, land performance parameters are detected and fed back to an automatic control system, the automatic control system analyzes the parameters and then controls a bacteria-algae mixed culture reactor to spray a bacteria-algae mixed solution with the corresponding concentration, and soil is improved. The invention further discloses application of the system and the method in salinized soil remediation. The device automatically monitors and sprays the bacteria-algae mixed solution, and is beneficial to popularization and use in large-area farmland.

Description

Technical Field

[0001] The invention relates to an automated bacteria-algae mixing control system, method and application for saline soil restoration, belonging to the technical field of soil restoration. Background Art

[0002] Saline soil has high salt content, low nutrients and great hazards. Its unique physical, chemical and biological properties often produce abnormal ecosystem material and energy circulation processes, causing waste of agricultural resources, economic losses and various secondary hazards, and ultimately destroying the ecological environment. Therefore, certain measures need to be taken to repair saline soil.

[0003] At present, traditional improvement measures for soil salinization are usually inefficient or have certain side effects. In response to this situation, this patent adopts microbial improvement technology to propose an automated bacteria-algae mixed control system for saline soil remediation and its application to solve the above problems. Summary of the invention

[0004] In order to solve the above problems, the present invention discloses an automated bacteria-algae mixed control system, method and application for saline soil remediation, and its specific technical solution is as follows: An automated bacteria-algae mixed control system for saline soil remediation, comprising a movable on-site construction system, a bacteria-algae mixed culture reactor and an automated control system arranged on the movable on-site construction system, The bacteria-algae mixed culture reactor is used to combine microorganisms and algae for biological treatment or production; The movable on-site construction system is used for on-site application of the bacteria-algae mixture in agricultural fields or other planting areas; The automatic control system is used to monitor and control various parameters of the bacteria-algae mixed culture reactor to ensure the stable operation of the bacteria-algae mixed culture reactor; The bacteria-algae mixed culture reactor comprises a reactor tank, a light source system, a gas delivery system, a mechanical stirrer and a monitoring and control system; The reactor tank contains a bacteria-algae mixed solution; The light source system is installed in the reactor tank, and includes an artificial light source and a dimmer, one end of the dimmer is connected to the artificial light source, and the other end is connected to the monitoring and control system; The gas delivery system is used to deliver oxygen and carbon dioxide into the reactor tank, and the input ratio is controlled by the monitoring and control system, including a gas diffuser and an air pump. One end of the air pump is connected to the gas diffuser, and the other end is connected to the outside world. The air is pumped into the reactor tank. At the same time, the gas diffuser installed in the reactor tank evenly diffuses the air into the bacteria-algae mixed solution. A one-way valve is installed on the top of the reactor tank to allow the gas inside the reactor tank to be released in one direction. The mechanical stirrer is installed inside the reaction tank, and the stirring blades of the mechanical stirrer are driven by the motor to rotate and stir inside the reaction tank; The monitoring and control system is used to monitor the parameters of pH value, temperature, dissolved oxygen concentration, and nutrient concentration in the reactor tank in real time, and to automatically control the operation of the reactor tank.

[0005] Furthermore, it also includes: a nutrient solution tank; the nutrient solution tank is installed on the movable on-site construction system and is connected to the reactor tank through a hose and a nutrient solution pump; The reactor tank is equipped with a temperature sensor, a pH sensor, a dissolved oxygen detection device, and various nutrient detection devices. The various indicators of the mixed solution are input into the monitoring and control system. After analysis by the monitoring and control system, the signal is transmitted to the dimmer of the light source system, the air pump and the nutrient solution pump of the gas delivery system to adjust the various indicators of the bacteria and algae mixed solution.

[0006] Furthermore, the bacteria-algae mixed culture reactor also includes a separation and collection system for separating bacteria and algae from the bacteria-algae mixed solution and collecting the generated products.

[0007] Further, the movable on-site construction system includes a mobile platform, a mobile water source and supply system, an energy system and a mobile platform self-control system; The mobile platform is provided with a rotatable and retractable telescopic arm, an agricultural tire is installed at the bottom, and a power system for driving the agricultural tire to move, the power system includes an internal combustion engine and an electric motor to provide the power required by the mobile platform; The mobile water source and supply system includes a water tank, a metering pump and a spraying device; the water tank is fixed on the mobile platform, and the metering pump is connected to the water tank and the reactor tank through a T-tube; the spraying device is connected to the reactor tank, and the spraying output concentration of the bacteria-algae mixed solution is adjusted by controlling the water flow; the nozzle of the spraying device is installed on a telescopic arm, and one end of the telescopic arm is fixed on the mobile platform to realize automatic spraying control; The energy system is a hybrid power system, including a mobile power management system and a power distribution system. The power distribution system supplies energy to each power-consuming subsystem to ensure the normal operation of each part; The mobile platform self-control system includes a GPS module, an inertial navigation unit and a laser radar for real-time positioning and path planning. The mobile platform navigates along the prescribed route through the GPS module and the inertial navigation unit. The front end of the mobile platform is equipped with an infrared sensor and a camera, which can detect obstacles ahead in real time and automatically adjust the path or stop.

[0008] Furthermore, the automatic control system is responsible for monitoring and controlling various parameters of the bacteria-algae mixed culture reactor, including a central control unit, a sensor module and an actuator module.

[0009] Furthermore, the central control unit includes a data recording and monitoring system, a remote control and alarm system, an automated application control system, and a data cloud storage and analysis system, which are responsible for receiving sensor data and controlling the operation of each subsystem. The central control unit is connected to the mobile platform through a standardized power and communication interface, wherein: The data recording and monitoring system includes a data acquisition module and a display screen. The data acquisition module collects sensor data and transmits it to the central control unit for analysis and storage; the display screen displays real-time data, system status and historical data; The remote control and alarm system is provided with a network interface to connect to the Internet, to perform remote control and automatically sound an alarm when an error is reported, to remotely monitor the operating status of the bacteria-algae mixed culture reactor through a tablet computer, a smart phone or a computer, and to adjust the application parameters or the driving path when necessary; when any system reports an error or fails, the alarm system sounds an alarm to remind the operator to make adjustments; The automatic application control system includes an automatic spraying system and a feedback control loop. The automatic spraying system controls the concentration and spraying direction of the mixed solution through a metering pump, a telescopic arm and a nozzle according to preset parameters to ensure uniform coverage of the farmland. If changes in soil parameters are detected during the operation, the feedback control loop will automatically adjust the application strategy and change the application amount and speed. The field data collected by the data cloud storage and analysis system can be automatically uploaded to the cloud for storage and analysis, historical data can be displayed on the cloud, reports can be generated, and future application plans can be optimized based on the data analysis results.

[0010] Further, the sensor module is an integration of various sensors for real-time monitoring of field conditions and feeding back data to a central control unit, including a temperature sensor, a pH sensor, a light sensor, a dissolved oxygen sensor, and a nutrient concentration sensor; The sensors equipped in the sensor module monitor the on-site environment and applied parameters in real time. The pH sensor is used to monitor the pH value in the reactor in real time and control the pH value within the range suitable for the growth of bacteria and algae. The temperature sensor is used to detect the temperature in the reactor and feed it back to the temperature control system for adjustment. The dissolved oxygen sensor is used to monitor the dissolved oxygen level in the reactor to ensure sufficient oxygen supply. The light intensity sensor is used to detect the ambient light intensity and adjust the output of the light source system. The nutrient concentration sensor is used to monitor the concentration of ingredients in the nutrient solution to ensure the accuracy of nutrient supply. The actuator module is responsible for executing the instructions issued by the central control unit.

[0011] A method for the automated bacteria-algae mixed control system for saline soil remediation based on the above-mentioned method comprises the following steps: Step 1: Start the mobile on-site construction system, bacteria-algae mixed culture reactor and automated control system, check whether the mobile platform, energy system, reactor tank, light source system, gas delivery system, sensor module and spraying device are operating normally, and ensure that the nutrient solution tank is correctly connected and the liquid level is sufficient; Step 2: Move the mobile platform to the target saline soil area, enable the GPS module and lidar for positioning, and plan the spraying operation path; Step 3: Add bacteria, algae and culture medium into the reactor tank, connect the nutrient solution tank, ensure the hose is unobstructed, and check the sealing status; Step 4: Turn on the mechanical stirrer to stir the bacteria-algae mixed solution, start the light source system, and set the initial light intensity; turn on the air pump and inject oxygen and carbon dioxide into the reactor tank through the gas diffuser to ensure uniform gas distribution; Step 5: Check the temperature, pH value, dissolved oxygen concentration and nutrient concentration in the reactor tank. The temperature is: 20°C - 30°C, the pH value is: 6.5 - 8.0, and the dissolved oxygen is: 5-8 mg / L; according to the sensor data, adjust the light intensity, gas ratio and nutrient solution injection amount to ensure the stability of the culture process; Step 6: Turn on the mobile platform self-control system and start driving according to the planned path in coordination with the infrared sensor and camera; Step 7: Set the spraying concentration and flow rate, adjust the telescopic arm to the height of the target area, and start the spraying device to spray the bacteria-algae mixed solution; according to the soil parameter monitoring data, automatically adjust the spraying concentration, flow rate and speed to ensure uniform coverage; Step 8: After spraying the designated area, turn off the spraying device and record the application data; start the separation and collection system to separate the bacteria and algae from the culture solution and collect the generated biological products; Step 9: Upload the collected soil parameters, bacterial and algal culture parameters and spraying record field data to the cloud; Step 10: Clean the reactor tank, nutrient solution tank, gas delivery system and spray device to ensure there is no residue; check and clean the sensor and spray device to avoid blockage; Step 11: Shut down the movable on-site construction system, the bacteria-algae mixed culture reactor and the automatic control system, and cut off the power supply; Steps: Check whether there is any wear and tear on the components of the movable on-site construction system, bacteria-algae mixed culture reactor and automated control system, and replace or repair them in time; calibrate the mobile platform and sensor module; move the mobile platform back to the storage location.

[0012] An application of the above-mentioned automated bacteria-algae mixing control system in improving saline soil.

[0013] An application of the automated bacteria-algae mixing control method as described above in improving saline soil.

[0014] The beneficial effects of the present invention are: (1) The system of the present invention can generate and cultivate a mixed solution of bacteria and algae suitable for specific purposes, such as soil conditioner, plant growth promoter, etc., at the work site. The automated control system can adjust the mixing process in real time according to preset parameters to ensure the activity and quality of the bacteria and algae.

[0015] (2) The system of the present invention can apply the bacteria-algae mixed solution evenly and accurately to the target area according to actual needs.

[0016] (3) The system of the present invention can automatically perform the application operation, monitor the environmental conditions in real time and make corresponding adjustments. The operator can view the system status and operation results in real time through the mobile device and make necessary interventions.

[0017] (4) The system of the present invention is installed on a mobile platform and has good terrain adaptability. It can move freely in different environments such as farmland, greenhouse, mountainous area, etc. The mobile platform is equipped with an automatic navigation system that supports path planning and automatic obstacle avoidance to ensure that the equipment can complete the operation efficiently and safely. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a structural schematic diagram of the present invention, Figure 2 is a flow chart of the method of the present invention, List of reference numerals: bacteria-algae mixed culture reactor 1, light source system 11, air pump 1, mechanical agitator 13, nutrient solution tank 101, mobile platform 2, infrared sensor 21, camera 22, mobile water source and supply system 3, water tank 31, metering pump 32, telescopic arm 331, nozzle 332, energy system 4, power system 41, automatic control system 5, central control unit 51, sensor module 52. DETAILED DESCRIPTION

[0019] The present invention is further explained below in conjunction with the accompanying drawings and specific embodiments. It should be understood that the following specific embodiments are only used to illustrate the present invention and are not used to limit the scope of the present invention.

[0020] Combined with Figure 1It can be seen that the automatic bacteria-algae mixed control system for improving saline soil of the present invention comprises a bacteria-algae mixed culture reactor 1, a mobile platform 2, a mobile water source and supply system 3, an energy system 4, and an automatic control system 5. The bacteria-algae mixed culture reactor 1 is used to combine microorganisms (such as bacteria) with algae for biological treatment or production; the movable on-site construction system is used to apply the bacteria-algae mixture on-site in agricultural fields or other planting areas; the automatic control system is used to monitor and control various parameters of the bacteria-algae mixing device to ensure stable operation of the system and achieve the best bacteria-algae culture and application effect.

[0021] The bacteria-algae mixed culture reactor 1 includes a light source system 11 and a gas delivery system. The light source system includes an artificial light source and a dimmer. One end of the dimmer is connected to the artificial light source, and the other end is connected to the monitoring and control system. The dimmer receives a signal from the central control unit 51 and controls the artificial light source to adjust the light source in real time. The gas delivery system includes an air pump 1 and a gas diffuser 2. One end of the air pump 1 is connected to the gas diffuser 2, and the other end is connected to the outside world. The air is pumped into the device. At the same time, the gas diffuser 2 installed in the bacteria-algae mixed culture reactor 1 diffuses the air evenly into the solution. A one-way valve 3 is installed on the top of the bacteria-algae mixed culture reactor 1 to release excess gas and maintain the internal air pressure of the bacteria-algae mixed culture reactor 1. A sensor module 52 is installed in the bacteria-algae mixed culture reactor 1. The sensor module 52 detects various indicators of the solution and inputs them to the central control unit 51. After analysis by the central control unit 51, the signal is input to the dimmer, the air pump 1 and the nutrient solution pump to adjust the various indicators of the bacteria-algae mixed solution. One end of the air pump is connected to the gas diffuser, and the other end is connected to the outside world. The air is pumped into the device. At the same time, the gas diffuser installed in the reactor tank diffuses the air evenly into the bacteria-algae mixed solution. A one-way valve is installed on the top of the reactor tank to release the gas. The reactor tank is equipped with a temperature sensor, a pH sensor, a dissolved oxygen detection device and various nutrient detection devices. The various indicators of the mixed solution are input into the central control unit. After analysis by the central control unit, the signal is transmitted to the light source, the air pump and the nutrient solution pump to adjust the various indicators of the bacteria-algae mixed solution. In actual use, the light source system and the mechanical stirrer are installed in the bacteria-algae mixing device for cultivating bacteria and algae; the mechanical stirrer is installed inside the mixed bacteria-algae reactor tank, and the stirring blade is driven by an electric motor; the monitoring and control system is used to monitor the various parameters in the device in real time and automatically control the operation of the device; the separation and collection system is used to separate the bacteria and algae from the mixed solution and collect the generated products. The gas delivery system is used to deliver oxygen and carbon dioxide required for microbial growth into the reactor tank, and the input ratio is controlled by the automatic control system; the monitoring and control system is used to monitor various parameters in the device in real time, such as pH value, temperature, dissolved oxygen concentration, nutrient concentration, etc., and to automatically control the operation of the device.

[0022] The mobile on-site construction system includes a mobile platform, a mobile water source and supply system, an energy system and a mobile platform self-control system. The platform is equipped with a reactor tank, a nutrient solution tank, a water tank and a power system, and the bottom is equipped with agricultural tires to travel in the cultivated land.

[0023] In this embodiment, the mobile platform is a small trailer, and the mobile water source and supply system include a water tank, a metering pump, and a spraying device; one end of the metering pump is connected to the water tank and the other end is connected to the reactor tank; the spraying device is connected to the reactor tank and is installed on the telescopic arm; the energy system includes a mobile power management system and a power distribution system; the mobile platform self-control system includes a GPS module, an inertial navigation unit and a laser radar for real-time positioning and path planning. An internal combustion engine and an electric motor are installed on the chassis to provide the power required for the mobile platform; a water tank is fixed on the platform and connected to a metering pump, the other end of which is connected to the reactor tank through a T-tube, and a nozzle is connected to the bottom of the T-tube to adjust the output concentration of the bacteria-algae mixed solution by controlling the water flow; the nozzle is installed on a telescopic arm and one end of the telescopic arm is fixed to the chassis to realize automated spraying control; the system is powered by a hybrid power system, and an internal power distribution system is provided to supply energy to various subsystems (such as agitators, pumps, light sources, control systems, etc.) to ensure the normal operation of each part; for the electric system, the platform can be equipped with an automatic charging station. When the battery is insufficient, the system will automatically navigate to the charging station for recharging to ensure uninterrupted operations; the mobile platform travels along the prescribed route through GPS navigation, and an infrared sensor and camera are installed at the front end to detect obstacles ahead in real time and automatically adjust the path or stop.

[0024] In this embodiment, the bacteria-algae mixed culture reactor 1, the nutrient solution tank 101, the mobile water source and supply system 3, and the energy system 4 are all installed on the mobile platform 2. The power system 41 is installed at the bottom of the mobile platform 2 to provide driving power. The water tank 31 is fixed on the mobile platform 2 and connected to the metering pump 32. The other end of the metering pump 32 is connected to the bacteria-algae mixed culture reactor 1 through a T-tube. The bottom of the T-tube is connected to the nozzle 332. The nozzle 332 is installed on the telescopic arm 331 and one end of the telescopic arm 331 is fixed on the mobile platform 2. In actual use, the central control unit 51 sends the operating parameters to the metering pump 32 to control the solution concentration and flow rate, and adjusts the spraying direction by controlling the telescopic arm 331. The power system 41 provides power and supplies energy to the bacteria-algae mixed culture reactor 1, the mobile platform 2, the mobile water source and supply system 3, and the automatic control system 5. The infrared sensor 21 and the camera 22 are installed at the front end of the mobile platform 2. If an obstacle is detected in front, the signal is transmitted to the central control unit 51, so as to control the mobile platform 2 to adjust the path or stop driving.

[0025] The automatic control system includes a central control unit, a sensor module, and an actuator module. In actual use, the automatic control system is responsible for monitoring and controlling various parameters of the bacteria-algae mixing device to ensure stable operation of the system and achieve the best bacteria-algae cultivation and application effects. Among them, the central control unit is the "brain" of the system, responsible for managing and coordinating the work of various parts; the sensor module is an integration of various sensors, used to monitor the on-site conditions in real time and feed back data to the central control unit; the actuator module includes a pump body, a spray device, agitator, etc., which is responsible for executing the instructions issued by the control unit to realize the automatic control of each device.

[0026] In this embodiment, the central control unit 51 includes a data recording and monitoring system, a remote control and alarm system 5, an automated application control system, and a data cloud storage and analysis system. The microcontroller is selected as the core of the system, which is responsible for receiving the signal of the sensor module 52 and controlling the operation of each subsystem. The data recording and monitoring system includes a data acquisition module and a display screen; the automated application control system includes an automatic spraying system and a feedback control loop. In actual use, the central control unit selects a microcontroller as the core of the system, which is responsible for receiving sensor data and controlling the operation of each subsystem. The control system is connected to the mobile platform through a standardized power and communication interface to ensure seamless integration and stable operation between the modules. The various sensors equipped with the sensor module 52 monitor the on-site environment and application parameters in real time, including: pH sensor, temperature sensor, light intensity sensor, and nutrient concentration sensor. The pH sensor is used to monitor the pH value in the reactor tank in real time and control the pH value within a range suitable for the growth of bacteria and algae; the temperature sensor is used to detect the temperature in the reactor tank and feed it back to the temperature control system for adjustment; the dissolved oxygen sensor is used to monitor the dissolved oxygen level in the reactor tank to ensure sufficient oxygen supply; the light intensity sensor is used to detect the ambient light intensity and adjust the output of the light source system; the nutrient concentration sensor is used to monitor the concentration of key components in the nutrient solution to ensure the accuracy of nutrient supply. Based on the environmental perception function, the automatic control system can determine the best time to apply. For example, when the soil moisture reaches the set threshold, the system will automatically start the application operation. The remote control and alarm system 5 is provided with a network interface to connect to the Internet. The operator can remotely monitor the operating status of the present invention through a tablet computer, smart phone or computer, and adjust the application parameters or driving path when necessary; when any system reports an error or fails, the alarm system will sound an alarm to remind the operator to make adjustments. In actual use, the sensor module 52 sends the detected parameter signal to the central control unit 51 for analysis. At the same time, the central control unit 51 stores and uploads the data to the cloud. After comparing with the set parameters and adjusting intelligently, the central control unit 51 transmits the output signal to the dimmer, air pump 1, mechanical agitator 13, and nutrient solution pump for corresponding adjustment. In addition, the central control unit 51 realizes the precise application of the mixed solution. It controls the metering pump 32, telescopic arm 331 and nozzle 332 according to the set parameters to ensure that the sprayed solution evenly covers the farmland. The automatic spraying system controls the concentration and spraying direction of the mixed solution through the metering pump, telescopic arm and nozzle according to the preset parameters to ensure even coverage of the farmland. If a change in soil parameters is detected during the operation, the feedback control loop will automatically adjust the application strategy and change the application amount and speed; for example, if it is detected that the nutrients in the soil are saturated, the system can reduce the application amount to avoid waste. In addition, the central control unit 51 controls the route planning and automatic obstacle avoidance of the mobile platform 2.When the operator changes the parameters through the remote control port, the central control unit 51 will change the output signal in real time to realize the automation of saline soil remediation.

[0027] The field data collected by the data cloud storage and analysis system can be automatically uploaded to the cloud for storage and analysis. Operators can view historical data, generate reports, and optimize future application plans based on data analysis results in the cloud. The data recording and monitoring system includes a data acquisition module 5 and a display screen 5. The data acquisition module 5 collects data from the sensor module 52 and transmits it to the central control unit 51 for analysis and storage; the display screen 5 displays real-time data, and operators can view system status, historical data, and perform manual operations and settings.

[0028] In summary, the automated bacteria-algae mixing control system for saline soil improvement of the present invention is not only reasonably designed but also easy to operate, and can achieve salinized soil remediation. At the same time, the overall design is reasonable and the operation is simple.

[0029] See also Figure 2 The method of the automated bacteria-algae mixed control system for saline soil remediation of the present invention is specifically as follows: Step 1: Equipment startup and deployment: check equipment status, deploy on-site, and prepare bacteria and algae solution; Step 2: Bacteria and algae cultivation: Start the reactor tank (i.e., cultivation reactor), start the gas delivery system, monitor and adjust the control parameters of the gas delivery system, Step 3: Mobile platform operation and application: Start the mobile platform, start the spraying device, and adjust the spraying parameters; Step 4: Equipment cleaning and maintenance: clean the equipment, shut down the system, perform maintenance, and return it to its original location for storage; Step 5: Data processing and analysis: upload data, analyze reports, and modify parameters; Step 6: Separation and collection of bacteria and algae: Stop the application operation, separate the bacteria and algae and collect them.

[0030] The present invention also applies to protect the application of an automated bacteria-algae mixing control system in saline soil improvement, and the application of an automated bacteria-algae mixing control method in saline soil improvement.

[0031] It will be understood by those skilled in the art that, unless otherwise defined, all terms (including technical and scientific terms) used herein have the same meaning as generally understood by those skilled in the art to which this application belongs. It should also be understood that terms such as those defined in common dictionaries should be understood to have meanings consistent with the meanings in the context of the prior art, and will not be interpreted with idealized or overly formal meanings unless defined as herein.

[0032] The meaning of "connection" in this application can be a direct connection between components or an indirect connection between components through other components.

[0033] Based on the above ideal embodiments of the present invention, the relevant staff can make various changes and modifications without departing from the technical concept of the present invention through the above description. The technical scope of the present invention is not limited to the contents of the specification, and its technical scope must be determined according to the scope of the claims.

Claims

1. An automated bacteria-algae mixing control system for saline soil remediation, characterized in that: It includes a movable on-site construction system, a bacteria-algae mixed culture reactor and an automatic control system arranged on the movable on-site construction system. The bacteria-algae mixed culture reactor is used to combine microorganisms and algae for biological treatment or production; The movable on-site construction system is used for on-site application of the bacteria-algae mixture in agricultural fields or other planting areas; The automatic control system is used to monitor and control various parameters of the bacteria-algae mixed culture reactor to ensure the stable operation of the bacteria-algae mixed culture reactor; The bacteria-algae mixed culture reactor comprises a reactor tank, a light source system, a gas delivery system, a mechanical stirrer and a monitoring and control system; The reactor tank contains a bacteria-algae mixed solution; The light source system is installed in the reactor tank, and includes an artificial light source and a dimmer, one end of the dimmer is connected to the artificial light source, and the other end is connected to the monitoring and control system; The gas delivery system is used to deliver oxygen and carbon dioxide into the reactor tank, and the input ratio is controlled by the monitoring and control system, including a gas diffuser and an air pump. One end of the air pump is connected to the gas diffuser, and the other end is connected to the outside world. The air is pumped into the reactor tank. At the same time, the gas diffuser installed in the reactor tank evenly diffuses the air into the bacteria-algae mixed solution. A one-way valve is installed on the top of the reactor tank to allow the gas inside the reactor tank to be released in one direction. The mechanical stirrer is installed inside the reaction tank, and the stirring blades of the mechanical stirrer are driven by the motor to rotate and stir inside the reaction tank; The monitoring and control system is used to monitor the parameters of pH value, temperature, dissolved oxygen concentration, and nutrient concentration in the reactor tank in real time, and to automatically control the operation of the reactor tank.

2. The automated bacteria-algae mixed control system for saline soil remediation according to claim 1 is characterized in that: Also includes: Nutrient solution tank; The nutrient solution tank is installed on a movable on-site construction system and connected to the reactor tank via a hose and a nutrient solution pump; The reactor tank is equipped with a temperature sensor, a pH sensor, a dissolved oxygen detection device, and various nutrient detection devices. The various indicators of the mixed solution are input into the monitoring and control system. After analysis by the monitoring and control system, the signal is transmitted to the dimmer of the light source system, the air pump and the nutrient solution pump of the gas delivery system to adjust the various indicators of the bacteria and algae mixed solution.

3. The automated bacteria-algae mixed control system for saline soil remediation according to claim 1 is characterized in that: The bacteria-algae mixed culture reactor also includes a separation and collection system for separating bacteria and algae from the bacteria-algae mixed solution and collecting the generated products.

4. The automated bacteria-algae mixed control system for saline soil remediation according to claim 1 is characterized in that: The movable on-site construction system includes a mobile platform, a mobile water source and supply system, an energy system and a mobile platform self-control system; The mobile platform is provided with a rotatable and retractable telescopic arm, an agricultural tire is installed at the bottom, and a power system for driving the agricultural tire to move, the power system includes an internal combustion engine and an electric motor to provide the power required by the mobile platform; The mobile water source and supply system includes a water tank, a metering pump and a spraying device; the water tank is fixed on the mobile platform, and the metering pump is connected to the water tank and the reactor tank through a T-tube; the spraying device is connected to the reactor tank, and the spraying output concentration of the bacteria-algae mixed solution is adjusted by controlling the water flow; the nozzle of the spraying device is installed on a telescopic arm, and one end of the telescopic arm is fixed on the mobile platform to realize automatic spraying control; The energy system is a hybrid power system, including a mobile power management system and a power distribution system. The power distribution system supplies energy to each power-consuming subsystem to ensure the normal operation of each part; The mobile platform self-control system includes a GPS module, an inertial navigation unit and a laser radar for real-time positioning and path planning. The mobile platform navigates along the prescribed route through the GPS module and the inertial navigation unit. The front end of the mobile platform is equipped with an infrared sensor and a camera, which can detect obstacles ahead in real time and automatically adjust the path or stop.

5. The automated bacteria-algae mixed control system for saline soil remediation according to claim 1 is characterized in that: The automatic control system is responsible for monitoring and controlling various parameters of the bacteria-algae mixed culture reactor, and includes a central control unit, a sensor module and an actuator module.

6. The automated bacteria-algae mixing control system for saline soil remediation according to claim 5 is characterized in that: The central control unit includes a data recording and monitoring system, a remote control and alarm system, an automated application control system, and a data cloud storage and analysis system, which is responsible for receiving sensor data and controlling the operation of each subsystem. The central control unit is connected to the mobile platform through a standardized power and communication interface, wherein: The data recording and monitoring system includes a data acquisition module and a display screen. The data acquisition module collects sensor data and transmits it to the central control unit for analysis and storage; the display screen displays real-time data, system status and historical data; The remote control and alarm system is provided with a network interface to connect to the Internet, to perform remote control and automatically sound an alarm when an error is reported, to remotely monitor the operating status of the bacteria-algae mixed culture reactor through a tablet computer, a smart phone or a computer, and to adjust the application parameters or the driving path when necessary; when any system reports an error or fails, the alarm system sounds an alarm to remind the operator to make adjustments; The automatic application control system includes an automatic spraying system and a feedback control loop. The automatic spraying system controls the concentration and spraying direction of the mixed solution through a metering pump, a telescopic arm and a nozzle according to preset parameters to ensure uniform coverage of the farmland. If changes in soil parameters are detected during the operation, the feedback control loop will automatically adjust the application strategy and change the application amount and speed. The field data collected by the data cloud storage and analysis system can be automatically uploaded to the cloud for storage and analysis, historical data can be displayed on the cloud, reports can be generated, and future application plans can be optimized based on the data analysis results.

7. The automated bacteria-algae mixing control system for saline soil remediation according to claim 5 is characterized in that: The sensor module is an integration of various sensors for real-time monitoring of field conditions and feeding back data to the central control unit, including temperature sensors, pH sensors, light sensors, dissolved oxygen sensors, and nutrient concentration sensors; The sensors equipped in the sensor module monitor the on-site environment and applied parameters in real time. The pH sensor is used to monitor the pH value in the reactor in real time and control the pH value within a range suitable for the growth of bacteria and algae. The temperature sensor is used to detect the temperature in the reactor and feed it back to the temperature control system for adjustment. The dissolved oxygen sensor is used to monitor the dissolved oxygen level in the reactor to ensure sufficient oxygen supply. The light intensity sensor is used to detect the ambient light intensity and adjust the output of the light source system; the nutrient concentration sensor is used to monitor the concentration of ingredients in the nutrient solution to ensure the accuracy of nutrient supply; The actuator module is responsible for executing the instructions issued by the central control unit.

8. A method for an automated bacteria-algae mixed control system for saline soil remediation based on any one of claims 1-7, characterized in that: The following steps are involved: Step 1: Start the mobile on-site construction system, bacteria-algae mixed culture reactor and automated control system, check whether the mobile platform, energy system, reactor tank, light source system, gas delivery system, sensor module and spraying device are operating normally, and ensure that the nutrient solution tank is correctly connected and the liquid level is sufficient; Step 2: Move the mobile platform to the target saline soil area, enable the GPS module and lidar for positioning, and plan the spraying operation path; Step 3: Add bacteria, algae and culture medium into the reactor tank, connect the nutrient solution tank, ensure the hose is unobstructed, and check the sealing status; Step 4: Turn on the mechanical stirrer to stir the bacteria-algae mixed solution, start the light source system, and set the initial light intensity; Turn on the air pump and inject oxygen and carbon dioxide into the reactor tank through the gas diffuser to ensure uniform distribution of the gas; Step 5: Check the temperature, pH value, dissolved oxygen concentration and nutrient concentration in the reactor tank. The temperature is: 20°C - 30°C, and the pH value is: 6.5 - 8.0, dissolved oxygen: 5-8 mg / L; according to the sensor data, adjust the light intensity, gas ratio and nutrient solution injection amount to ensure the stability of the cultivation process; Step 6: Turn on the mobile platform self-control system and start driving according to the planned path in coordination with the infrared sensor and camera; Step 7: Set the spraying concentration and flow rate, adjust the telescopic arm to the height of the target area, and start the spraying device to spray the bacteria-algae mixed solution; according to the soil parameter monitoring data, automatically adjust the spraying concentration, flow rate and speed to ensure uniform coverage; Step 8: After spraying the designated area, turn off the spraying device and record the application data; start the separation and collection system to separate the bacteria and algae from the culture solution and collect the generated biological products; Step 9: Upload the collected soil parameters, bacterial and algal culture parameters and spraying record field data to the cloud; Step 10: Clean the reactor tank, nutrient solution tank, gas delivery system and spray device to ensure there is no residue; check and clean the sensor and spray device to avoid blockage; Step 11: Shut down the movable on-site construction system, the bacteria-algae mixed culture reactor and the automatic control system, and cut off the power supply; Steps: Check whether there is any wear and tear on the components of the movable on-site construction system, bacteria-algae mixed culture reactor and automated control system, and replace or repair them in time; calibrate the mobile platform and sensor module; move the mobile platform back to the storage location.

9. Application of the automated bacteria-algae mixing control system according to any one of claims 1 to 7 in improving saline soil.

10. Application of the automated bacteria-algae mixing control method as claimed in claim 8 in improving saline soil.

Images