Novel rural automatic water pumping system

Abstract

The invention discloses a novel rural automatic water pumping system, and relates to the technical field of rural drinking water engineering, an execution unit is controlled by a frequency conversion control unit to execute a water pumping command, and in the process, operation data of the execution unit in the working process is obtained through a state monitoring unit; the frequency conversion control unit can dynamically control the operation speed of the execution unit in a frequency conversion mode according to changes of operation data parameters of the execution unit, so that the execution unit tends to be balanced, it is ensured that parameters such as water pressure and flow are stabilized within a set range, full-automatic operation of the system is achieved, manual intervention frequency is reduced, and rural operation cost and labor cost of the system are reduced. Meanwhile, data are transmitted to a user terminal through the remote monitoring unit, a user can master system operation parameters in real time through the user terminal and remotely access the frequency conversion control unit, and point-to-point frequency modulation controls starting and stopping of the execution unit.

Description

Technical Field

[0001] The invention belongs to the field of rural drinking water projects, and in particular is a new type of rural automatic water pumping system. Background Art

[0002] Drinking water projects refer to projects that develop, utilize and manage water resources to meet various water needs of residents, industry, agriculture, etc.

[0003] Usually, a pumping station is used to extract water from a reservoir and pump it into residents' homes to meet their daily drinking water needs, or a pumping station is used to lift the water to another reservoir for storage.

[0004] However, traditional pumping stations usually manually control the start and stop of water pumps, which has low control efficiency and requires frequent manual control to adjust the pumping frequency. Manual intervention is frequent and the stability is not ideal. Summary of the invention

[0005] The purpose of the present invention is to propose a new rural automated pumping system to address the problems that existing traditional pumping stations usually manually control the start and stop of water pumps, have low control efficiency, require frequent manual control to adjust the pumping frequency, have frequent manual intervention and poor stability.

[0006] In order to solve the above technical problems, the present invention provides a novel rural automated water pumping system, comprising a frequency conversion control unit, an execution unit, a remote monitoring unit, a status monitoring unit, an abnormal diagnosis alarm unit and a communication unit;

[0007] The frequency conversion control unit is used to send a pumping command to the execution unit and to control the running speed of the execution unit by frequency conversion;

[0008] The execution unit is used to execute the pumping command sent by the frequency conversion control unit to pump water out of the pool;

[0009] The remote monitoring unit is used for data interaction between the frequency conversion control unit and the user terminal;

[0010] The state monitoring unit is used to obtain the operating state of the execution unit and obtain operating data;

[0011] The abnormal diagnosis alarm unit is used to determine whether the operating data is abnormal, and if so, trigger an alarm mechanism;

[0012] The communication unit is used for data transmission between the units.

[0013] Preferably, the frequency conversion control unit uses the following formula to perform frequency conversion control on the running speed of the execution unit:

[0014]

[0015] Where u(t) is the operating frequency of the execution unit, e(t) is the error at the current moment, and K p is the proportional gain, which is used to adjust the system’s response to the error. i is the integral gain, used to eliminate static error, is the integral of the error, indicating the accumulated error from system startup to the current moment, K d is the differential gain, used to predict future errors, is the rate of change of error.

[0016] Preferably, the remote monitoring unit comprises a data transmission module, a data storage module, an access module and a remote control module;

[0017] The data transmission module is used to transmit the operation data to the data storage module in real time;

[0018] The data storage module is used to store the operation data in a cloud server;

[0019] The access module is used for data interaction between the data storage module and the user terminal;

[0020] The remote control module is used for data exchange between the frequency conversion control unit and the user terminal.

[0021] Preferably, the communication unit performs data transmission between units by establishing an industrial wireless communication network.

[0022] Preferably, the state monitoring unit includes a pressure monitoring module, a water level monitoring module, and a flow monitoring module;

[0023] The pressure monitoring module is used to monitor the pumping water pressure data of the execution unit;

[0024] The water level monitoring module is used to monitor the liquid level data of the water pool;

[0025] The flow monitoring module is used to monitor the pumping flow data of the execution unit.

[0026] Preferably, the execution unit is a low-level water storage tank lift pump station or a secondary transfer pressurization pump station between high-level water storage tanks.

[0027] Preferably, the abnormal diagnosis alarm unit performs abnormal diagnosis alarm by adopting the following steps:

[0028] S1. Presetting normal operating parameters and deviation safety thresholds of the execution unit;

[0029] S2. Calculating the deviation between the operating data and the normal operating parameters;

[0030] S3. Determine whether the deviation is within the deviation safety threshold. If not, trigger the corresponding alarm mechanism, record the type and parameters of the abnormality, adjust the deviation safety threshold of the corresponding type, and send the corresponding fault handling suggestion to the user terminal.

[0031] Preferably, the deviation safety threshold includes a safety value and a danger value, the safety value is between the normal operating parameter and the danger value, and the danger value is between the deviation safety threshold and the safety value.

[0032] Preferably, the alarm mechanism includes sending alarm information to the user terminal and executing sound and light alarm, and when the deviation is at a dangerous value, the alarm information is triggered to be sent to the user terminal, and when the deviation is greater than the deviation safety threshold, the sound and light alarm is triggered.

[0033] Preferably, the proportions of the safety value and the danger value are adjusted according to the type and parameters of the abnormality, and dynamically restored according to the subsequent time when no abnormality occurs.

[0034] Compared with the prior art, the present invention has the following beneficial effects:

[0035] The present invention controls the execution unit to execute the pumping command through the frequency conversion control unit. During the process, the operating data of the execution unit during its working process is obtained through the status monitoring unit. The frequency conversion control unit will dynamically control the operating speed of the execution unit according to the changes in the operating data parameters of the execution unit to make it tend to balance, ensure that parameters such as water pressure and flow are stable within the set range, realize full automatic operation of the system, reduce the frequency of manual intervention, and reduce the rural operating cost and labor cost of the system. At the same time, the data is transmitted to the user terminal through the remote monitoring unit. The user can grasp the system operating parameters in real time through the user terminal, and remotely access the frequency conversion control unit, and control the start and stop of the execution unit through point-to-point frequency modulation.

[0036] The present invention can automatically determine whether the operating data of the execution unit is abnormal through the abnormal diagnosis alarm unit, thereby discovering potential problems in advance and notifying the user for maintenance, reducing fault downtime and improving the reliability of system operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0037] Figure 1 It is a schematic diagram of the overall structure of the present invention. DETAILED DESCRIPTION

[0038] Embodiment 1: As shown in the attached Figure 1 As shown, this embodiment provides a novel rural automated water pumping system, including a frequency conversion control unit, an execution unit, a remote monitoring unit, a status monitoring unit, an abnormal diagnosis alarm unit and a communication unit;

[0039] A frequency conversion control unit, used to send a pumping command to the execution unit and to control the running speed of the execution unit by frequency conversion;

[0040] An execution unit, used to execute the pumping command sent by the frequency conversion control unit to pump water out of the pool;

[0041] Remote monitoring unit, used for data exchange between the frequency conversion control unit and the user terminal;

[0042] A status monitoring unit is used to obtain the operating status of the execution unit and obtain operating data;

[0043] Abnormal diagnosis alarm unit, used to determine whether the operating data is abnormal. If abnormal, the alarm mechanism is triggered;

[0044] Communication unit, used for data transmission between units.

[0045] As can be seen from the above, the frequency conversion control unit controls the execution unit to execute the pumping command to pump out the water in the pool. In the process, the state monitoring unit obtains the operating data of the execution unit during the working process, including water pressure, flow and the current liquid level of the pool, and transmits the data to the frequency conversion control unit. The frequency conversion control unit will dynamically control the running speed of the execution unit according to the changes in the running data parameters of the execution unit to make it tend to balance, ensure that the parameters such as water pressure and flow are stable within the set range, improve the working stability, and reduce the frequency of manual intervention. At the same time, the remote monitoring unit transmits the data to the user terminal, and the user can view the running data of the execution unit through the user terminal, and remotely access the frequency conversion control unit, and point-to-point frequency modulation control the start and stop of the execution unit;

[0046] Realize the fully automatic operation of the execution unit, reduce manual intervention, improve work efficiency, and realize remote access control and monitoring;

[0047] Dynamic frequency conversion is used to control the running speed of the execution unit through the running data of the execution unit, so as to improve the control accuracy of the execution unit and reduce the rural operation cost and labor cost of the system;

[0048] Users can access the system through the remote monitoring unit and grasp the system operating parameters in real time, so as to understand the operating status of the execution unit at any time;

[0049] The abnormal diagnosis alarm unit can automatically determine whether the operating data of the execution unit is abnormal, thereby discovering potential problems in advance and notifying the user for maintenance, reducing fault downtime and improving the reliability of system operation.

[0050] Embodiment 2: This embodiment provides a novel rural automated water pumping system, including a frequency conversion control unit, an execution unit, a remote monitoring unit, a status monitoring unit, an abnormal diagnosis alarm unit and a communication unit;

[0051] A frequency conversion control unit, used to send a pumping command to the execution unit and to control the running speed of the execution unit by frequency conversion;

[0052] An execution unit, used to execute the pumping command sent by the frequency conversion control unit to pump water out of the pool;

[0053] Remote monitoring unit, used for data exchange between the frequency conversion control unit and the user terminal;

[0054] A status monitoring unit is used to obtain the operating status of the execution unit and obtain operating data;

[0055] Abnormal diagnosis alarm unit, used to determine whether the operating data is abnormal. If abnormal, the alarm mechanism is triggered;

[0056] Communication unit, used for data transmission between units.

[0057] Specifically, the frequency conversion control unit uses the following formula to perform frequency conversion control on the running speed of the execution unit:

[0058]

[0059] Where u(t) is the operating frequency of the execution unit, e(t) is the error at the current moment, and K p is the proportional gain, which is used to adjust the system’s response to the error. i is the integral gain, used to eliminate static error, is the integral of the error, indicating the accumulated error from system startup to the current moment, K d is the differential gain, used to predict future errors, is the rate of change of error.

[0060] Specifically, the remote monitoring unit includes a data transmission module, a data storage module, an access module and a remote control module;

[0061] A data transmission module, used for transmitting the operation data to the data storage module in real time;

[0062] A data storage module, used to store the operation data in a cloud server;

[0063] Access module, used for data interaction between the data storage module and the user terminal;

[0064] The remote control module is used for data exchange between the frequency conversion control unit and the user terminal.

[0065] Specifically, the communication unit performs data transmission between units by establishing an industrial wireless communication network.

[0066] Specifically, the state monitoring unit includes a pressure monitoring module, a water level monitoring module, and a flow monitoring module;

[0067] The pressure monitoring module is used to monitor the pumping water pressure data of the execution unit;

[0068] Water level monitoring module, used to monitor the liquid level data of the water pool to prevent dry pumping;

[0069] The flow monitoring module is used to monitor the pumping flow data of the execution unit.

[0070] Specifically, the execution unit includes one of the secondary transfer booster pumping stations between the low-level water storage tank and the high-level water storage tank.

[0071] As can be seen from the above, by configuring the cloud server, the system historical operation data is stored in the cloud server using the data storage module, so that users can perform data analysis and fault diagnosis. Users can use the access module to remotely access the system through the user terminal, which is convenient for users to view the system historical operation data in real time to grasp the operation status of the system equipment, and can remotely operate the control execution unit through the remote control module to realize point-to-point frequency modulation control execution unit equipment start and stop;

[0072] The frequency conversion control unit adjusts the impact of each part on the output through proportional, integral and differential gain coefficients. Among them, proportional control will provide a control amount that is directly proportional to the current error. When the real-time monitored water pressure or water level is lower than the set value, the output frequency of the execution unit water pump is increased. When it reaches the set value, the output frequency of the execution unit water pump is reduced; integral control is responsible for eliminating steady-state errors, taking into account the accumulated errors in the past. When the system has errors for a long time, integral control will continue to increase or decrease the control signal until the error disappears, which helps the execution unit water pump to maintain the target state for a long time; differential control is used to predict the trend of error changes, and can quickly respond to error changes, reduce overshoot and oscillation. By calculating the rate of error change, differential control can adjust the control signal accordingly to prevent the system from overreacting. By combining these three parts, an efficient and flexible control strategy can be provided for the frequency conversion control unit to ensure that the execution unit water pump can automatically adjust the operating speed according to the real-time water pressure, flow or water level requirements, optimize the management and allocation of water resources, and improve the stability and efficiency of the system.

[0073] Embodiment 3: This embodiment provides a novel rural automated water pumping system, including a frequency conversion control unit, an execution unit, a remote monitoring unit, a status monitoring unit, an abnormal diagnosis alarm unit and a communication unit;

[0074] A frequency conversion control unit, used to send a pumping command to the execution unit and to control the running speed of the execution unit by frequency conversion;

[0075] An execution unit, used to execute the pumping command sent by the frequency conversion control unit to pump water out of the pool;

[0076] Remote monitoring unit, used for data exchange between the frequency conversion control unit and the user terminal;

[0077] A status monitoring unit is used to obtain the operating status of the execution unit and obtain operating data;

[0078] Abnormal diagnosis alarm unit, used to determine whether the operating data is abnormal. If abnormal, the alarm mechanism is triggered;

[0079] Communication unit, used for data transmission between units.

[0080] Specifically, the frequency conversion control unit uses the following formula to perform frequency conversion control on the running speed of the execution unit:

[0081]

[0082] Where u(t) is the operating frequency of the execution unit, e(t) is the error at the current moment, and K p is the proportional gain, which is used to adjust the system’s response to the error. i is the integral gain, used to eliminate static error, is the integral of the error, indicating the accumulated error from system startup to the current moment, K d is the differential gain, used to predict future errors, is the rate of change of error.

[0083] Specifically, the remote monitoring unit includes a data transmission module, a data storage module, an access module and a remote control module;

[0084] A data transmission module, used for transmitting the operation data to the data storage module in real time;

[0085] A data storage module, used to store the operation data in a cloud server;

[0086] Access module, used for data interaction between the data storage module and the user terminal;

[0087] The remote control module is used for data exchange between the frequency conversion control unit and the user terminal.

[0088] Specifically, the communication unit performs data transmission between units by establishing an industrial wireless communication network.

[0089] Specifically, the state monitoring unit includes a pressure monitoring module, a water level monitoring module, and a flow monitoring module;

[0090] The pressure monitoring module is used to monitor the pumping water pressure data of the execution unit;

[0091] Water level monitoring module, used to monitor the liquid level data of the water pool;

[0092] The flow monitoring module is used to monitor the pumping flow data of the execution unit.

[0093] Specifically, the execution unit includes one of the secondary transfer booster pumping stations between the low-level water storage tank and the high-level water storage tank.

[0094] Specifically, the abnormal diagnosis alarm unit performs abnormal diagnosis alarm using the following steps:

[0095] S1. Preset normal operating parameters and deviation safety thresholds of the execution unit;

[0096] S2. Calculate the deviation between the operating data and the normal operating parameters;

[0097] S3. Determine whether the deviation is within the deviation safety threshold. If not, trigger the corresponding alarm mechanism, record the type and parameters of the abnormality, adjust the corresponding type of deviation safety threshold, and send the corresponding fault handling suggestions to the user terminal.

[0098] Specifically, the deviation safety threshold includes a safety value and a danger value, the safety value is between the normal operating parameter and the danger value, and the danger value is between the deviation safety threshold and the safety value.

[0099] Specifically, the alarm mechanism includes sending alarm information to the user terminal and executing sound and light alarm. When the deviation is at a dangerous value, the alarm information is triggered to be sent to the user terminal, and when the deviation is greater than the deviation safety threshold, the sound and light alarm is triggered.

[0100] Specifically, the proportion of corresponding safety values ​​and danger values ​​is adjusted according to the type and parameters of the abnormality, and dynamic recovery is performed based on the subsequent time when no abnormality occurs.

[0101] From the above, it can be seen that by dividing the deviation safety threshold into a safe value and a dangerous value, when the deviation between the actual operating data of the execution unit and the set normal operating data is within the safe value, it indicates that the system is operating normally. When the deviation between the actual operating data of the execution unit and the set normal operating data is within the dangerous value, it indicates that the current operating state of the execution unit is in a dangerous state, but it can still continue to operate. At this time, an alarm message will be sent to the user terminal to notify the staff to handle it, so as to discover potential problems, reduce fault downtime, and improve the operation reliability of the system. According to the type and parameters of the abnormality, the proportion of safe values ​​and dangerous values ​​in the corresponding deviation safety threshold is adjusted, such as reducing the proportion of safe values, increasing the proportion of dangerous values, or directly reducing the deviation safety threshold, so that when the same type of parameters fluctuate in the future, it can be detected more accurately and warned in advance.

[0102] The above specific embodiments are preferred embodiments of the present invention, and are not intended to limit the specific implementation scope of the present invention. The scope of the present invention includes but is not limited to the present specific embodiments. All equivalent changes made in accordance with the shape, structure, and method of the present invention are within the protection scope of the present invention.

Claims

1. A new type of rural automatic pumping system, characterized in that: It includes a frequency conversion control unit, an execution unit, a remote monitoring unit, a status monitoring unit, an abnormal diagnosis alarm unit and a communication unit; The frequency conversion control unit is used to send a pumping command to the execution unit and to control the running speed of the execution unit by frequency conversion; The execution unit is used to execute the pumping command sent by the frequency conversion control unit to pump water out of the pool; The remote monitoring unit is used for data interaction between the frequency conversion control unit and the user terminal; The state monitoring unit is used to obtain the operating state of the execution unit and obtain operating data; The abnormal diagnosis alarm unit is used to determine whether the operating data is abnormal, and if so, trigger an alarm mechanism; The communication unit is used for data transmission between the units.

2. A new type of rural automatic pumping system according to claim 1, characterized in that: The frequency conversion control unit uses the following formula to perform frequency conversion control on the running speed of the execution unit: Where u(t) is the operating frequency of the execution unit, e(t) is the error at the current moment, and K p is the proportional gain, K i is the integral gain, used to eliminate static error, is the integral of the error, indicating the accumulated error from system startup to the current moment, K d is the differential gain, used to predict future errors, is the rate of change of error.

3. A new type of rural automatic pumping system according to claim 1, characterized in that: The remote monitoring unit includes a data transmission module, a data storage module, an access module and a remote control module; The data transmission module is used to transmit the operation data to the data storage module in real time; The data storage module is used to store the operation data in a cloud server; The access module is used for data interaction between the data storage module and the user terminal; The remote control module is used for data exchange between the frequency conversion control unit and the user terminal.

4. A new type of rural automatic pumping system according to claim 1, characterized in that: The communication unit performs data transmission between units by establishing an industrial wireless communication network.

5. A new type of rural automatic pumping system according to claim 1, characterized in that: The state monitoring unit includes a pressure monitoring module, a water level monitoring module, and a flow monitoring module; The pressure monitoring module is used to monitor the pumping water pressure data of the execution unit; The water level monitoring module is used to monitor the liquid level data of the water pool; The flow monitoring module is used to monitor the pumping flow data of the execution unit.

6. A new type of rural automatic pumping system according to claim 1, characterized in that: The execution unit is a low-level water storage tank lifting pump station or a secondary transfer pressurization pump station between high-level water storage tanks.

7. A new type of rural automatic pumping system according to claim 1, characterized in that: The abnormal diagnosis alarm unit performs abnormal diagnosis alarm by adopting the following steps: S1. Presetting normal operating parameters and deviation safety thresholds of the execution unit; S2. Calculating the deviation between the operating data and the normal operating parameters; S3. Determine whether the deviation is within the deviation safety threshold. If not, trigger the corresponding alarm mechanism, record the type and parameters of the abnormality, adjust the deviation safety threshold of the corresponding type, and send the corresponding fault handling suggestion to the user terminal.

8. A new type of rural automatic pumping system according to claim 7, characterized in that: The deviation safety threshold includes a safety value and a danger value, the safety value is between the normal operating parameter and the danger value, and the danger value is between the deviation safety threshold and the safety value.

9. A new type of rural automatic pumping system according to claim 8, characterized in that: The alarm mechanism includes sending alarm information to the user terminal and executing sound and light alarm. When the deviation is at a dangerous value, the alarm information is triggered to be sent to the user terminal. When the deviation is greater than the deviation safety threshold, the sound and light alarm is triggered.

10. A new type of rural automatic pumping system according to claim 9, characterized in that: The proportion of the safety value and the danger value is adjusted according to the type and parameters of the abnormality, and dynamically restored according to the subsequent time when no abnormality occurs.

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