CN114698537B - Irrigation pipeline pressure controller of multi-pump water supply measurement and control system and control method - Google Patents
Irrigation pipeline pressure controller of multi-pump water supply measurement and control system and control method Download PDFInfo
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- CN114698537B CN114698537B CN202210507646.3A CN202210507646A CN114698537B CN 114698537 B CN114698537 B CN 114698537B CN 202210507646 A CN202210507646 A CN 202210507646A CN 114698537 B CN114698537 B CN 114698537B
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01G—HORTICULTURE; CULTIVATION OF VEGETABLES, FLOWERS, RICE, FRUIT, VINES, HOPS OR SEAWEED; FORESTRY; WATERING
- A01G25/00—Watering gardens, fields, sports grounds or the like
- A01G25/16—Control of watering
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B49/00—Control, e.g. of pump delivery, or pump pressure of, or safety measures for, machines, pumps, or pumping installations, not otherwise provided for, or of interest apart from, groups F04B1/00 - F04B47/00
- F04B49/02—Stopping, starting, unloading or idling control
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B49/00—Control, e.g. of pump delivery, or pump pressure of, or safety measures for, machines, pumps, or pumping installations, not otherwise provided for, or of interest apart from, groups F04B1/00 - F04B47/00
- F04B49/06—Control using electricity
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B49/00—Control, e.g. of pump delivery, or pump pressure of, or safety measures for, machines, pumps, or pumping installations, not otherwise provided for, or of interest apart from, groups F04B1/00 - F04B47/00
- F04B49/20—Control, e.g. of pump delivery, or pump pressure of, or safety measures for, machines, pumps, or pumping installations, not otherwise provided for, or of interest apart from, groups F04B1/00 - F04B47/00 by changing the driving speed
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A40/00—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production
- Y02A40/10—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production in agriculture
- Y02A40/22—Improving land use; Improving water use or availability; Controlling erosion
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Water Supply & Treatment (AREA)
- Life Sciences & Earth Sciences (AREA)
- Environmental Sciences (AREA)
- Control Of Fluid Pressure (AREA)
- Arrangements For Transmission Of Measured Signals (AREA)
Abstract
The invention discloses a pressure controller and a control method for an irrigation pipeline of a multi-pump water supply measurement and control system, which relate to the field of agricultural machinery water-saving irrigation and comprise the following steps: the water supply measurement and control system comprises a control host, a sensor assembly and a plurality of irrigation pipeline pressure control assemblies, the plurality of irrigation pipeline pressure control assemblies are respectively arranged on the plurality of water pumps, and the control host controls the operation of the irrigation pipeline pressure control assemblies according to parameter information acquired by the sensor assembly; the irrigation measurement and control network platform is connected with the water supply measurement and control system, and a first treatment plan and a second treatment plan are arranged in the irrigation measurement and control network platform; a storage module is arranged in the control host, and the storage module is used for storing a first parameter threshold value, a second parameter threshold value and a first treatment plan which are downloaded from an irrigation measurement and control network platform; the UPS is connected with the water supply measurement and control system; and the water pump start-stop strategy is regulated by an optimal control method and an algorithm so as to regulate the pipeline pressure and reduce the pipeline pressure fluctuation.
Description
Technical Field
The invention belongs to the field of agricultural machinery water-saving irrigation, and particularly relates to an irrigation pipeline pressure controller of a multi-pump water supply measurement and control system and a control method.
Background
The water-saving irrigation equipment is one kind of agricultural irrigation and drainage machine and is used to filter water in water source and convey the filtered water to soil surface or soil layer near crop root system. The flow rate of the irrigator should be kept within a certain range when irrigating crops, and the flow rate of the irrigator is related to the working pressure of the irrigator, so that stable water pressure is required when the irrigator works. The pipeline water pressure regulation can change the pipeline resistance characteristic by regulating the opening of a valve to realize the regulation and control of the working point of the water pump, or directly change the working condition of the pump by regulating the water pump, so that the energy consumption is large and the regulation effect is poor due to the change of the pipeline resistance characteristic, and the water pressure is regulated in a frequency conversion constant pressure water supply mode at present.
The variable-frequency speed-regulating constant-pressure water supply mode is used for regulating the rotating speed of a water pump motor through a frequency converter to regulate the working point of the water pump, the regulation and control range of the existing variable-frequency constant-pressure water supply control system is limited, the regulation mode and the control strategy are single, and the regulation requirement on an irrigation system is difficult to meet.
Disclosure of Invention
The invention aims at overcoming the defects of the prior art, and provides an irrigation pipeline pressure controller of a multi-pump water supply measurement and control system and a control method thereof.
In order to achieve the above object, the present invention provides an irrigation pipe pressure controller of a multi-pump water supply measurement and control system, comprising:
the water supply measurement and control system comprises a control host, a sensor assembly and a plurality of irrigation pipeline pressure control assemblies, wherein the irrigation pipeline pressure control assemblies are respectively arranged on a plurality of water pumps, and the control host controls the operation of the irrigation pipeline pressure control assemblies according to parameter information acquired by the sensor assembly;
the irrigation measurement and control network platform is connected with the water supply measurement and control system, and a first treatment plan and a second treatment plan are arranged in the irrigation measurement and control network platform;
a storage module is arranged in the control host, and the storage module is used for storing a first parameter threshold value and a second parameter threshold value downloaded from the irrigation measurement and control network platform;
when the parameter information is at the second parameter threshold, the control host is able to select a first treatment plan from the first treatment plans;
when the parameter information is not within the second parameter threshold range, the control host is capable of generating fault data;
the control host is capable of selecting a second treatment plan from the second treatment plans according to the fault data;
and the UPS is connected with the water supply measurement and control system.
Optionally, the sensor assembly includes:
the water pressure sensor is arranged on the pipeline;
the rotating speed sensor is connected with the water pump;
acceleration sensor, set up in turn department and said water pump of the said pipeline;
the temperature and humidity sensor is arranged on the pipeline;
the water level sensor is arranged on the water storage device;
the sound sensor is arranged on the water pump;
the power sensor is arranged on the water pump;
and the flow sensor is arranged on the pipeline.
Optionally, the irrigation pipe pressure control assembly comprises:
the controller is connected with a digital input unit, an analog input unit, a digital output unit and an analog output unit, and is connected with the water pressure sensor and the water level sensor;
the remote transmission unit is connected with the control host through the controller;
and the controller is connected with the water pump through the frequency converter.
Optionally, the water pressure sensor comprises a vacuum pressure sensor and a water pressure switch.
Optionally, the irrigation measurement and control network platform comprises server side platform software and network safety equipment, and the server side platform software is connected with the control host through the internet.
The invention also provides a method for controlling the pressure of the irrigation pipeline of the multi-pump water supply measurement and control system, which is characterized by comprising the following steps of:
setting a first parameter threshold, a second parameter threshold, a first treatment protocol, and a second treatment protocol;
storing a first parameter threshold, a second parameter threshold, and a first treatment protocol;
acquiring parameter information acquired by a sensor assembly;
judging whether the parameter information is in the first parameter threshold range, if so, keeping the original control state, and if not, performing the next judgment;
judging whether the parameter information is in the second parameter threshold range, if so, selecting a first treatment scheme from the first treatment scheme and executing the first treatment scheme, and if not, generating fault data.
Optionally, the method further comprises disposing the first parameter threshold, the second parameter threshold, the first treatment protocol, and the second treatment protocol on an irrigation measurement and control network platform.
Optionally, the method further comprises downloading, with the control host, the first parameter threshold, the second parameter threshold, and the first treatment plan to the storage module.
Optionally, after generating the fault data, the method further includes:
the control host is connected with the irrigation measurement and control network platform;
and selecting a second treatment plan from the second treatment plans according to the fault data, executing the second treatment plan if the second treatment plan can be selected, and sending out a stop signal if the second treatment plan cannot be selected.
Optionally, if the first treatment plan or the second treatment plan adjusts the parameter information to be within the first parameter threshold range, a log is recorded in a storage module, and if the first treatment plan or the second treatment plan cannot adjust the parameter information to be within the first parameter threshold range, a shutdown signal is sent and a fault code is reported.
The invention provides an irrigation pipeline pressure controller of a multi-pump water supply measurement and control system and a control method, which have the beneficial effects that:
1. the controller has a more flexible system architecture and wider application range, the controller comprises an irrigation measurement and control network platform, a water supply measurement and control system and an irrigation pipeline pressure control component, the irrigation pipeline pressure control component can work independently and can also be monitored by the water supply measurement and control system, the water supply measurement and control system is connected with 1 or more irrigation pipeline pressure control components, the irrigation measurement and control network platform is connected with 1 or more water supply measurement and control systems and supports automatic networking, a system supports a user to monitor the water supply measurement and control system and the irrigation pipeline pressure control component through the network platform, the user can upload control parameters and download monitoring information data, and the water supply measurement and control system is integrated with the existing constant-pressure water supply equipment to provide monitoring and partial control functions;
2. the controller supports multiple sensor types, supports multiple sensor communication modes, supports programming of a single sensor by a control algorithm, supports operation under the condition that part of sensors fail, supports sharing of sensor signals among a water supply measurement and control system and an irrigation pipeline pressure control component, integrates part of sensors of the water supply measurement and control system, optimizes different sensor working conditions, can change a control strategy according to the type of the failed sensor, and supports multiple sensor fault protection modes;
3. the controller supports independent programming of the input and output terminals, supports the input of the states of common equipment, such as the start-stop state of a back flushing filtering device, the start-stop state of fertilizing equipment, a water level switch state, a pressure switch state, the start-stop state of variable frequency equipment and the start-stop state of a water pump, and the system can synchronize the state information to the output terminal through programming;
4. when the rural remote regional power grid is unstable, the water supply measurement and control system is provided with a UPS power supply and optimizes the power-off working condition, and can supply power for the irrigation pipeline pressure control assembly, the sensor assembly and part of low-power-consumption equipment for a period of time during power off, continuously monitor the power-off state of the equipment, timely find power-off faults, inform users by means of a cellular network and provide monitoring data for subsequent fault diagnosis.
Additional features and advantages of the invention will be set forth in the detailed description which follows.
Drawings
The foregoing and other objects, features and advantages of the invention will be apparent from the following more particular descriptions of exemplary embodiments of the invention as illustrated in the accompanying drawings wherein like reference numbers generally represent like parts throughout the exemplary embodiments of the invention.
FIG. 1 shows a schematic diagram of a water supply measurement and control system according to one embodiment of the present invention.
Fig. 2 shows a flow chart of an irrigation pipe pressure control assembly according to an embodiment of the invention.
Fig. 3 shows a control schematic of a controller controlling a water pump through a frequency converter according to an embodiment of the present invention.
Fig. 4 shows a schematic diagram of a control flow of controlling a frequency converter by means of a water pressure sensor according to an embodiment of the invention.
FIG. 5 illustrates a control flow diagram of a water supply measurement and control system according to one embodiment of the present invention.
FIG. 6 shows a schematic diagram of a multi-pump water supply measurement and control system irrigation pipe pressure controller according to one embodiment of the invention.
Reference numerals illustrate:
1. a water supply measurement and control system; 2. a control host; 3. a sensor assembly; 4. an irrigation pipe pressure control assembly; 5. irrigation measurement and control network platform; 6. a UPS power supply; 7. a digital input unit; 8. an analog input unit; 9. a digital output unit; 10. an analog output unit; 11. a controller; 12. a remote transmission unit; 13. a frequency converter.
Detailed Description
Preferred embodiments of the present invention will be described in more detail below. While the preferred embodiments of the present invention are described below, it should be understood that the present invention may be embodied in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the invention to those skilled in the art.
The invention provides an irrigation pipeline pressure controller of a multi-pump water supply measurement and control system, which comprises the following components:
the water supply measurement and control system comprises a control host, a sensor assembly and a plurality of irrigation pipeline pressure control assemblies, the plurality of irrigation pipeline pressure control assemblies are respectively arranged on the plurality of water pumps, and the control host controls the operation of the irrigation pipeline pressure control assemblies according to parameter information acquired by the sensor assembly;
the irrigation measurement and control network platform is connected with the water supply measurement and control system, and a first treatment plan and a second treatment plan are arranged in the irrigation measurement and control network platform;
a storage module is arranged in the control host, and the storage module is used for storing a first parameter threshold value, a second parameter threshold value and a first treatment plan which are downloaded from an irrigation measurement and control network platform;
when the parameter information is at the second parameter threshold, the control computer is capable of selecting a first treatment plan from the first treatment plans;
when the parameter information is not in the second parameter threshold range, the control computer can generate fault data;
the control computer is capable of selecting a second treatment plan from the second treatment plans according to the fault data;
and the UPS is connected with the water supply measurement and control system.
Specifically, the water supply measurement and control system collects various operation parameters of the sensor assembly, monitors the working state of the irrigation pipeline pressure control assembly, integrates equipment such as a backwash filter and the like, coordinates the pressure of a plurality of irrigation pipelines, and reduces pipeline pressure fluctuation; the irrigation pipeline pressure control assembly can control a plurality of water pumps to supply water for irrigation pipelines, regulate the pressure of the pipelines by controlling the rotating speed of the water pumps, and monitor the running state of the water pumps in real time according to the type regulation control mode of the water pumps; in the water supply measurement and control system, a control host monitors the working state of an irrigation pipeline pressure control assembly, comprehensively monitors the equipment state of the irrigation system, timely adjusts a control strategy, reduces pipeline pressure fluctuation and timely discovers abnormal information; the UPS power supply provides power for the control host, each sensor and the remote transmission unit, and can maintain power supply for a period of time when power is cut off.
Further, the control host can download the first parameter threshold value, the second parameter threshold value and the first treatment plan from the irrigation measurement and control network platform and store the first parameter threshold value, so that the control reaction speed can be improved, and meanwhile, the second treatment plan can be uploaded to the irrigation measurement and control network platform at any time, so that more treatment plans are provided successively along with the progress of the operation process, and more accurate regulation and control are realized; in addition, a first parameter threshold value and a second parameter threshold value are set, and a plurality of corresponding first treatment plans and a plurality of corresponding second treatment plans are set, so that the regulation and control of the irrigation pipeline pressure are finer, and accurate and rapid regulation and control are convenient to achieve.
Optionally, the sensor assembly comprises:
the water pressure sensor is arranged on the pipeline;
the rotating speed sensor is connected with the water pump;
the acceleration sensor is arranged at the turning part of the pipeline and on the water pump;
the temperature and humidity sensor is arranged on the pipeline;
the water level sensor is arranged on the water storage device;
the sound sensor is arranged on the water pump;
the power sensor is arranged on the water pump;
the flow sensor is arranged on the pipeline.
Specifically, a water pressure sensor in the sensor assembly transmits detected real-time water pressure information to a control host; the rotating speed sensor provides motor running speed state information for the control host; the acceleration sensor is arranged at a pipeline turning part sensitive to vibration and displacement, a pump body, a filter unit and the like, and provides state information of the units for the control host; the temperature and humidity sensor can detect air temperature and humidity, water temperature, equipment temperature and the like, and provides temperature and humidity state information of the units for the control host; the water level sensor is arranged in water storage facilities such as a bucket, a water tank, a pool, a water well and the like and provides water level state information for the control host; the sound sensor is arranged at a position sensitive to vibration and noise, such as a water pump, a power supply, a floor and the like, and provides equipment running state information for the control host; the power sensor collects power information of key equipment and provides equipment running state information for the control host; the flow sensor is arranged on the pipeline and provides pipeline flow information for the control host; the control host can collect various operation parameters, can monitor the operation state of the water pump in real time, control a plurality of irrigation pipeline pressure control components according to different pipeline characteristics, and adjust the water pump start-stop strategy through an optimal control method and algorithm so as to adjust the pipeline pressure and reduce the pipeline pressure fluctuation.
Optionally, the irrigation pipe pressure control assembly comprises:
the controller is connected with the digital input unit, the analog input unit, the digital output unit and the analog output unit, and is connected with the water pressure sensor and the water level sensor;
the controller is connected with the control host through the remote transmission unit;
and the controller is connected with the water pump through the frequency converter.
Specifically, the digital input unit and the digital output unit input and output digital signals to the controller, the analog input unit and the analog output unit input and output analog signals to the controller, the controller can be connected with the water pressure sensor and the water level sensor to support 3 similar sensors, and the controller directly controls the water pump or controls the water pump by controlling at least one frequency converter; the controller can be connected with the remote transmission unit and can be connected with the previous-level controller in a wireless mode; the controller can be connected with the upper-level controller, the sensor and the frequency converter through a serial bus.
In one embodiment, the controller may be coupled to a pressure switch. When the controller is connected with a single pressure switch, if the controller controls the start and stop of the single water pump, and when the controller starts the water pump to run for a period of time, the controller can record the fault and display a fault code for analysis of a user when detecting that the state of the pressure switch is not consistent with the preset state; if the controller controls the start and stop of the plurality of water pumps, when the controller starts all the water pumps to run for a period of time and detects that the pressure switch state does not accord with the preset state, the fault can be recorded as a fault, and a fault code is displayed for analysis of a user. When the controller is connected with a plurality of pressure switches, the pressure switches can be set to a certain range, if the controller controls a single water pump to start and stop, when the controller starts the water pump to run for a period of time, the controller can record the fault as well as display a fault code for analysis of a user when detecting that the preset pressure state is not consistent with the set pressure switch range; if the controller controls the start and stop of the plurality of water pumps, when the controller starts all the water pumps to run for a period of time and detects that the pressure switch state does not accord with the preset state, the fault can be recorded as a fault, and a fault code is displayed for analysis by a user; the controller can control the start and stop of a plurality of water pumps, so that the pipeline pressure is in the pressure switch range. Further, the controller may be coupled to a pressure sensor. The specific control mode is similar to the connection of the pressure switch to the controller.
Optionally, the water pressure sensor comprises a vacuum pressure sensor and a water pressure switch.
Optionally, the irrigation measurement and control network platform comprises server side platform software and network safety equipment, and the server side platform software is connected with the control host through the internet.
Specifically, the remote transmission unit is connected with the server through the Internet between the server and the server in the operation of the server platform software, and the network flow of the remote transmission unit is monitored by the network security equipment; the server side platform software is the core of the irrigation measurement and control network platform; the water supply measurement and control system with the remote transmission unit and the irrigation pipeline pressure control assembly are connected with the Internet in one or a combination mode of cellular network, wiFi and wired connection, and then are connected with an irrigation measurement and control network platform; the user can upload control parameters and download monitoring information data through the network platform.
The invention also provides a method for controlling the pressure of the irrigation pipeline of the multi-pump water supply measurement and control system, which is characterized by comprising the following steps of:
setting a first parameter threshold, a second parameter threshold, a first treatment protocol, and a second treatment protocol;
storing a first parameter threshold, a second parameter threshold, and a first treatment protocol;
acquiring parameter information acquired by a sensor assembly;
judging whether the parameter information is in a first parameter threshold range, if so, maintaining the original control state, and if not, performing the next step of judgment;
judging whether the parameter information is in a second parameter threshold range, if the parameter information is in the second parameter threshold range, selecting a first treatment scheme from the first treatment scheme and executing the first treatment scheme, and if the parameter information is not in the second parameter threshold range, generating fault data.
Specifically, for the control method of the controller, a first parameter threshold value, a second parameter threshold value, a first treatment plan and a second treatment plan are firstly edited and input on an irrigation measurement and control network platform as control information, then controller information is acquired from the irrigation measurement and control network platform and is downloaded to a storage module to form a set parameter range, the parameter information is compared with the first parameter threshold value according to real-time parameter information acquired by a sensor assembly, when the parameter information is in the first parameter threshold value, the original control state is maintained, when the parameter information is not in the first parameter threshold value, the parameter information is compared with the second parameter threshold value, if the parameter information is not in the second parameter threshold value, a corresponding first treatment plan is selected from the first treatment plan, and the parameter information is adjusted, so that faults are processed, but when the parameter information is not in the second parameter threshold value, fault data are generated, and help is required to be requested to the irrigation measurement and control network platform.
In one embodiment, the control host preferentially detects whether the current real-time pressure is within a first parameter threshold, namely whether the current real-time pressure exceeds a set pressure range, and preferentially controls the frequency converter to slow down and reduce the pipeline pressure as soon as possible when an abnormally high pressure is detected; when abnormal low pressure is detected, the frequency converter is controlled to slowly speed up until the pipeline pressure is kept within a set range; the original control state is maintained only when the pressure value is at the first parameter threshold value, and the frequency converter is not required to be adjusted.
Optionally, the method further comprises disposing the first parameter threshold, the second parameter threshold, the first treatment protocol, and the second treatment protocol on an irrigation measurement and control network platform.
Specifically, the irrigation measurement and control network platform can record various parameter thresholds and treatment plans, so that when an operator wants to meet the pressure requirement of an irrigation pipeline, the irrigation measurement and control network platform can be found out, and the irrigation measurement and control network platform is downloaded to the storage module to form a set parameter range through the control host.
Optionally, the method further comprises downloading, with the control host, the first parameter threshold, the second parameter threshold, and the first treatment plan to the storage module.
Optionally, after generating the fault data, the method further includes:
the control host is connected with the irrigation measurement and control network platform;
and selecting a second treatment plan from the second treatment plans according to the fault data, executing the second treatment plan if the second treatment plan can be selected, and sending out a stop signal if the second treatment plan cannot be selected.
Specifically, when the parameter information is not in the second parameter threshold value, generating fault data and sending the fault data to the irrigation measurement and control network platform, sending the corresponding second treatment plan to the control host by the irrigation measurement and control network platform, finding the second treatment plan therein to process the fault data, if the fault data does not correspond to the second treatment plan on the irrigation measurement and control network platform, stopping the controller, and waiting for manual processing by reporting a fault code.
Optionally, if the first treatment plan or the second treatment plan adjusts the parameter information to be within the first parameter threshold range, a log is recorded in the storage module, and if the first treatment plan or the second treatment plan cannot adjust the parameter information to be within the first parameter threshold range, a shutdown signal is sent out and a fault code is reported.
Specifically, in the control method, after fault data is solved through the first treatment scheme or the second treatment scheme, data produced in the processing process are recorded in a log, so that when controller information is acquired from an irrigation measurement and control network platform next time and is downloaded to a storage module, the first treatment scheme and the second treatment scheme are downloaded at the same time, and the efficiency of solving the fault data is improved.
Examples
As shown in fig. 1 to 6, the present invention provides an irrigation pipe pressure controller of a multi-pump water supply measurement and control system, comprising:
the system comprises a water supply measurement and control system 1, wherein the water supply measurement and control system 1 comprises a control host 2, a sensor assembly 3 and a plurality of irrigation pipeline pressure control assemblies 4, the plurality of irrigation pipeline pressure control assemblies 4 are respectively arranged on a plurality of water pumps, and the control host 2 controls the operation of the irrigation pipeline pressure control assemblies 4 according to parameter information acquired by the sensor assembly 3;
the irrigation measurement and control network platform 5 is connected with the water supply measurement and control system 1, and a first treatment plan and a second treatment plan are arranged in the irrigation measurement and control network platform 5;
a storage module is arranged in the control host 2 and is used for storing a first parameter threshold value, a second parameter threshold value and a first treatment plan which are downloaded from the irrigation measurement and control network platform 5;
when the parameter information is at the second parameter threshold, the control host 2 is able to select a first treatment plan from the first treatment plans;
when the parameter information is not within the second parameter threshold range, the control host 2 can generate failure data;
the control host 1 can select a second treatment plan from the second treatment plans according to the fault data;
and the UPS power supply 6 is connected with the water supply measurement and control system 1.
In the present embodiment, the sensor assembly 3 includes:
the water pressure sensor is arranged on the pipeline;
the rotating speed sensor is connected with the water pump;
the acceleration sensor is arranged at the turning part of the pipeline and on the water pump;
the temperature and humidity sensor is arranged on the pipeline;
the water level sensor is arranged on the water storage device;
the sound sensor is arranged on the water pump;
the power sensor is arranged on the water pump;
the flow sensor is arranged on the pipeline.
In this embodiment, irrigation pipe pressure control assembly 4 comprises:
the controller is connected with a digital input unit 7, an analog input unit 8, a digital output unit 9 and an analog output unit 10, and the controller 11 is connected with the water pressure sensor and the water level sensor;
a remote transmission unit 12, the controller 11 being connected to the control host 2 through the remote transmission unit 12;
at least one frequency converter 13, the controller 11 is connected with the water pump through the frequency converter 13.
In this embodiment, the water pressure sensor includes a vacuum pressure sensor and a water pressure switch.
In this embodiment, the irrigation measurement and control network platform 5 includes a server platform software and a network security device, where the server platform software is connected to the control host 2 through the internet.
The invention also provides a method for controlling the pressure of the irrigation pipeline of the multi-pump water supply measurement and control system, which is characterized by comprising the following steps of:
setting a first parameter threshold, a second parameter threshold, a first treatment protocol, and a second treatment protocol;
storing a first parameter threshold, a second parameter threshold, and a first treatment protocol;
acquiring parameter information acquired by a sensor assembly;
judging whether the parameter information is in a first parameter threshold range, if so, maintaining the original control state, and if not, performing the next step of judgment;
judging whether the parameter information is in a second parameter threshold range, if the parameter information is in the second parameter threshold range, selecting a first treatment scheme from the first treatment scheme and executing the first treatment scheme, and if the parameter information is not in the second parameter threshold range, generating fault data.
In this embodiment, the method further comprises disposing the first parameter threshold, the second parameter threshold, the first treatment plan, and the second treatment plan on an irrigation measurement and control network platform.
In this embodiment, the method further includes downloading the first parameter threshold, the second parameter threshold, and the first treatment plan to the storage module using the control host.
In this embodiment, after generating the fault data, further includes:
the control host is connected with the irrigation measurement and control network platform;
and selecting a second treatment plan from the second treatment plans according to the fault data, executing the second treatment plan if the second treatment plan can be selected, and sending out a stop signal if the second treatment plan cannot be selected.
In this embodiment, if the first treatment plan or the second treatment plan adjusts the parameter information to be within the first parameter threshold range, a log is recorded in the storage module, and if the first treatment plan or the second treatment plan cannot adjust the parameter information to be within the first parameter threshold range, a shutdown signal is sent and a fault code is reported.
In summary, in the water supply measurement and control system, a control host 2 is connected with a plurality of sensors in a sensor assembly 3 and an irrigation pipeline pressure control assembly 4, the control host 2 acquires data information from the sensors, can acquire data information from a remote transmission unit, can acquire data information from the irrigation pipeline pressure control assembly 4, stores all the data information into a storage module, and acquires information of the sensors in real time, evaluates control effects and recalculates new control parameters, and the control host repeats the process to finish measurement and control of the water supply measurement and control system on a plurality of water pumps; in the irrigation pipeline pressure control assembly, the controller 11 is the core of the irrigation pipeline pressure control assembly, the controller 11 collects monitoring data of the sensor, collects digital signals and analog signals, and jointly completes control of the water supply measurement and control system, so that the water supply measurement and control system adjusts an optimal working state according to task characteristics, monitors the running state of equipment, early warns potential faults in time, achieves the effects of energy conservation and noise reduction, is comfortable in running environment and lowest in running cost, meets the use requirement of a user, and is provided with a plurality of frequency converters 13, each frequency converter 13 is used for controlling a water pump, each frequency converter 13 is provided with a rectifying module, a filtering module, an inversion module, a braking unit, a driving unit, a detection unit and a processing unit, the frequency converters 13 change the rotating speed according to the actual working condition of the water pump, and then adjust the flow and the water pressure of the water pump, the controller 11 is communicated with the frequency converters 13, the working state of the frequency converters 13 is controlled, the working state of the water pump is adjusted, and the controller 11 can also be communicated with the water pressure sensor, the water level sensor and the next-stage control unit through serial communication ports; when the controller controls the water pumps through the frequency converters, the controller 11 controls the frequency converters 13 to control the water pumps, the starting process is similar to the mode of controlling a single frequency converter, only 1 switch is in an on state at the same time of each pump, after the water pump is accelerated to the maximum rotation speed, the water pump is directly driven by the frequency converters to be converted into a power frequency operation mode, the controller 11 simultaneously controls the frequency converters 13 to independently finish the process, when acceleration is needed, the controller 11 selects to synchronously control the frequency converters 13 to increase the frequency according to the requirement, or sequentially controls the frequency converters 13 to increase the frequency, when deceleration is needed, the controller 11 controls the frequency converters 13 to reduce the frequency according to the requirement, or turns off the water pump in the power frequency operation, and the water pump is started in the frequency conversion mode again and accelerated to the required rotation speed; when the controller controls the frequency converter preferentially through the water pressure sensor, detecting whether the current pressure exceeds a set pressure range, when detecting abnormally high pressure, preferentially controlling the frequency converter to reduce the speed, reducing the pipeline pressure as soon as possible, and when detecting abnormally low pressure, controlling the frequency converter to slowly speed up until the pipeline pressure is kept within the set range; in the control flow of the water supply measurement and control system, the control host can be connected with the network platform, can download control information from the irrigation measurement and control network platform 5 into an internal storage module, and generate control parameters according to the internal control information, control the operation of the controller 11, control the operation of the host 2, set up to record the log into the internal storage module, users can analyze the equipment operation state according to the log; the controller adopts a three-layer structure of an irrigation measurement and control network platform 5, a water supply measurement and control system 1 and an irrigation pipeline pressure control assembly 4, the irrigation pipeline pressure control assembly 4 can work independently and can also be monitored by the water supply measurement and control system 1, the water supply measurement and control system 1 is connected with one or more irrigation pipeline pressure control assemblies 4, the irrigation measurement and control network platform 5 is connected with one or more water supply measurement and control systems 1 and can also be connected with one or more irrigation pipeline pressure control assemblies 4, and the irrigation pipeline pressure control assemblies 4 and the water supply measurement and control system 1 support automatic networking.
The foregoing description of embodiments of the invention has been presented for purposes of illustration and description, and is not intended to be exhaustive or limited to the embodiments disclosed. Many modifications and variations will be apparent to those of ordinary skill in the art without departing from the scope and spirit of the various embodiments described.
Claims (7)
1. A method for controlling the pressure of an irrigation pipe of a multi-pump water supply measurement and control system, which utilizes a pressure controller of the irrigation pipe of the multi-pump water supply measurement and control system, the method is characterized in that the controller comprises the following steps:
the water supply measurement and control system comprises a control host, a sensor assembly and a plurality of irrigation pipeline pressure control assemblies, wherein the irrigation pipeline pressure control assemblies are respectively arranged on a plurality of water pumps, and the control host controls the operation of the irrigation pipeline pressure control assemblies according to parameter information acquired by the sensor assembly;
the irrigation measurement and control network platform is connected with the water supply measurement and control system, and a first treatment plan and a second treatment plan are arranged in the irrigation measurement and control network platform;
a storage module is arranged in the control host, and the storage module is used for storing a first parameter threshold value, a second parameter threshold value and the first treatment plan which are downloaded from the irrigation measurement and control network platform;
when the parameter information is at the second parameter threshold, the control host is able to select a first treatment plan from the first treatment plans;
when the parameter information is not within the second parameter threshold range, the control host is capable of generating fault data;
the control host is capable of selecting a second treatment plan from the second treatment plans according to the fault data;
the UPS is connected with the water supply measurement and control system;
the control method comprises the following steps:
setting the first parameter threshold, the second parameter threshold, the first treatment protocol, and the second treatment protocol;
storing the first parameter threshold, the second parameter threshold, and the first treatment protocol;
acquiring parameter information acquired by a sensor assembly;
judging whether the parameter information is in the first parameter threshold range, if so, keeping the original control state, and if not, performing the next judgment;
judging whether the parameter information is in the second parameter threshold range, if so, selecting a first treatment scheme from the first treatment scheme and executing the first treatment scheme, and if not, generating fault data;
after generating the fault data, further comprising:
the control host is connected with the irrigation measurement and control network platform;
selecting a second treatment plan from the second treatment plans according to the fault data, executing the second treatment plan if the second treatment plan can be selected, and sending a shutdown signal if the second treatment plan cannot be selected;
logging in a storage module if the first treatment plan or the second treatment plan adjusts the parameter information to be within the first parameter threshold range, and sending out a shutdown signal and reporting a fault code if the first treatment plan or the second treatment plan cannot adjust the parameter information to be within the first parameter threshold range;
after the fault data is solved through the first treatment scheme or the second treatment scheme, the data produced in the processing process is recorded in a log, so that the controller information is conveniently acquired from the irrigation measurement and control network platform and downloaded to the storage module the next time, and the corresponding first treatment scheme and second treatment scheme are downloaded simultaneously, so that the fault data solving efficiency is improved.
2. The method of controlling the pressure of irrigation pipes of a multi-pump water supply measurement and control system according to claim 1, wherein the sensor assembly comprises:
the water pressure sensor is arranged on the pipeline;
the rotating speed sensor is connected with the water pump;
acceleration sensor, set up in turn department and said water pump of the said pipeline;
the temperature and humidity sensor is arranged on the pipeline;
the water level sensor is arranged on the water storage device;
the sound sensor is arranged on the water pump;
the power sensor is arranged on the water pump;
and the flow sensor is arranged on the pipeline.
3. The method of controlling the pressure of irrigation pipes of a multi-pump water supply measurement and control system according to claim 2, wherein the irrigation pipe pressure control assembly comprises:
the controller is connected with a digital input unit, an analog input unit, a digital output unit and an analog output unit, and is connected with the water pressure sensor and the water level sensor;
the remote transmission unit is connected with the control host through the controller;
and the controller is connected with the water pump through the frequency converter.
4. The method of controlling the pressure of an irrigation pipe of a multi-pump water supply measurement and control system according to claim 2, wherein the water pressure sensor comprises a vacuum pressure sensor and a water pressure switch.
5. The method for controlling the pressure of an irrigation pipeline of a multi-pump water supply measurement and control system according to claim 1, wherein the irrigation measurement and control network platform comprises server-side platform software and network safety equipment, and the server-side platform software is connected with the control host through the internet.
6. The method of claim 1, further comprising disposing the first parameter threshold, the second parameter threshold, the first treatment plan, and the second treatment plan on the irrigation measurement and control network platform.
7. The method of claim 6, further comprising downloading the first parameter threshold, the second parameter threshold, the first treatment plan to the storage module using the control host.
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| CN205046632U (en) * | 2015-08-25 | 2016-02-24 | 天津科技大学 | Water -saving irrigation pump house prelude RTU control system |
| CN105507378B (en) * | 2016-01-15 | 2017-10-27 | 昆明理工大学 | A kind of frequency conversion type constant-pressure water feeding system control system and method |
| CN105580716A (en) * | 2016-02-28 | 2016-05-18 | 山东大学 | Large-area multi-field-piece automatic water-saving irrigation three-level control system and use method thereof |
| CN108668865A (en) * | 2018-07-13 | 2018-10-19 | 北京新水源景科技股份有限公司 | A kind of Internet of Things intelligent irrigation total management system |
| CN111685016B (en) * | 2020-06-22 | 2022-06-07 | 扆亮海 | Sprinkling irrigation graded water pumping frequency conversion energy-saving method for mountain slope tea garden |
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