CN114483562A - Fault detection method and system for water pump, electronic equipment and storage medium - Google Patents
Fault detection method and system for water pump, electronic equipment and storage medium Download PDFInfo
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- CN114483562A CN114483562A CN202210122507.9A CN202210122507A CN114483562A CN 114483562 A CN114483562 A CN 114483562A CN 202210122507 A CN202210122507 A CN 202210122507A CN 114483562 A CN114483562 A CN 114483562A
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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
- F04B51/00—Testing machines, pumps, or pumping installations
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
- F24H9/00—Details
- F24H9/20—Arrangement or mounting of control or safety devices
- F24H9/2007—Arrangement or mounting of control or safety devices for water heaters
- F24H9/2035—Arrangement or mounting of control or safety devices for water heaters using fluid fuel
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- Control Of Non-Positive-Displacement Pumps (AREA)
Abstract
The invention discloses a fault detection method and system of a water pump, electronic equipment and a storage medium, wherein the fault detection method comprises the following steps: controlling the water pump to circulate in a preset mode, and obtaining the current of a rotor of the water pump corresponding to each circulation, wherein the preset mode comprises that the water pump is controlled to be closed for a second time after running for a first time; and judging whether the water pump has faults and fault types according to the acquired currents of the water pump rotors. The invention provides a novel water pump fault detection method, which can be used for carrying out multiple on-off cycles by controlling a water pump and carrying out fault judgment by detecting the current of a water pump rotor in each cycle, so that the fault judgment can be carried out accurately in time.
Description
Technical Field
The invention relates to the technical field of fault detection, in particular to a fault detection method and system for a water pump, electronic equipment and a storage medium.
Background
Most of current gas heater products have the water pump, consequently, if can in time carry out fault detection to the water pump effectively, then can prolong the life of water pump to provide very big help for subsequent water heater maintenance.
In the prior art, when fault detection is carried out on a water pump of a water heater, the water pump is usually disassembled to carry out fault detection, but the method is complex in operation, long in time consumption and low in efficiency; the other method is to maintain the fault state for a period of time to detect parameters so as to judge the fault and the fault type, but the method is easy to cause the damage of the water pump due to the long maintenance time of the fault state, and has low accuracy and poor effect.
Disclosure of Invention
The invention aims to overcome the defects that a water pump is easy to damage when fault detection is carried out on the water pump, the consumed time is long and the accuracy is not high in the prior art, and provides a fault detection method and system of the water pump, electronic equipment and a storage medium.
The invention solves the technical problems through the following technical scheme:
in a first aspect, the present invention provides a method for detecting a fault of a water pump, including:
controlling the water pump to circulate in a preset mode, and obtaining the current of a rotor of the water pump corresponding to each circulation, wherein the preset mode comprises that the water pump is controlled to be closed for a second time after running for a first time;
and judging whether the water pump has faults and fault types according to the acquired currents of the water pump rotors.
Preferably, the step of determining whether the water pump fails according to the acquired currents of the plurality of water pump rotors includes:
and if the current of the water pump rotor falls into a preset locked-rotor current range, determining that the locked-rotor fault occurs in the water pump.
Preferably, the step of determining whether the water pump fails according to the acquired currents of the plurality of water pump rotors includes:
and if the current of the water pump rotor falls into a preset light-load current range, determining that the light-load fault occurs in the water pump.
Preferably, the step of controlling the water pump to circulate in a preset manner includes:
and if the current water pump rotor current acquired by the current cycle falls into the corresponding current range when the water pump normally operates and the corresponding number of times of the current cycle is less than the preset number of times, determining that the water pump enters a normal operation state, and ending the cycle.
Preferably, before the step of controlling the water pump in a preset manner in a circulating manner, the method further includes:
and if the preset connection signal from the water pump is not detected, determining that the connection loosening fault of the water pump occurs.
Preferably, before the step of controlling the water pump in a preset manner in a circulating manner, the method further includes:
responding to a pressurization function starting signal, and acquiring a first water flow at a water outlet and/or a water inlet of the water pump;
and if the first water flow is smaller than a preset supercharging threshold value, determining that the water pump does not normally enter a supercharging function, and executing the step of circularly controlling the water pump in a preset mode.
Preferably, before the step of controlling the water pump in a preset manner in a circulating manner, the method further includes:
responding to a preheating function starting signal, and acquiring a second water flow and a water temperature of a water outlet and/or a water inlet of the water pump;
and if the second water flow is smaller than a preset flow threshold and/or the water temperature is smaller than a preset temperature threshold, determining that the water pump does not normally enter a preheating function, and executing the step of circularly controlling the water pump in a preset mode.
In a second aspect, the present invention provides a fault detection system for a water pump, the fault detection system comprising:
the circulation control module is used for controlling the water pump to circulate in a preset mode and acquiring the current of a rotor of the water pump corresponding to each circulation, wherein the preset mode comprises that the water pump is controlled to be closed for a second time after running for a first time;
and the fault judgment module is used for judging whether the water pump has faults or not according to the acquired currents of the water pump rotors.
In a third aspect, the present invention provides an electronic device, including a memory, a processor, and a computer program stored on the memory and executable on the processor, wherein the processor implements the method for detecting a fault of a water pump as described above when executing the computer program.
In a fourth aspect, the present invention provides a computer readable storage medium having stored thereon a computer program which, when executed by a processor, implements the method of fault detection for a water pump as described above.
The positive progress effects of the invention are as follows: the invention provides a novel water pump fault detection method, which can be used for carrying out multiple on-off cycles by controlling a water pump and carrying out fault judgment by detecting the current of a water pump rotor in each cycle, so that the fault judgment can be carried out accurately in time.
Drawings
Fig. 1 is a schematic flow chart illustrating a method for detecting a fault of a water pump according to an exemplary embodiment of the present invention.
Fig. 2 is a schematic flow chart of step S2 of the water pump fault detection method according to an exemplary embodiment of the present invention under three common situations.
Fig. 3 is a first partial flowchart of a method for detecting a fault of a water pump according to an embodiment of the present invention before step S1.
Fig. 4 is a second partial flowchart of the method for detecting a fault of a water pump according to the embodiment of the present invention before step S1.
Fig. 5 is a block diagram of a fault detection system of a water pump according to an exemplary embodiment of the present invention.
Fig. 6 is a schematic structural diagram of an electronic device for a fault detection method of a water pump according to an exemplary embodiment of the present invention.
Detailed Description
The invention is further illustrated by the following examples, which are not intended to limit the scope of the invention.
Fig. 1 is a schematic flow chart of a fault detection method for a water pump according to an exemplary embodiment of the present invention. The fault detection method in the embodiment is used for detecting whether the water pump can normally operate before the water pump of the water heater enters the corresponding functional mode, so that fault removal is performed in advance, the water pump is prevented from being damaged due to the fact that the water pump directly enters a fault state to continuously operate, and the service life of the water pump is prolonged.
Referring to fig. 1, the fault detection method of the water pump includes:
s1, controlling the water pump to circulate in a preset mode, and obtaining the rotor current of the water pump corresponding to each circulation, wherein the preset mode comprises that the water pump is controlled to be closed for a second time length after being operated for the first time length;
and S2, judging whether the water pump has faults and fault types according to the acquired currents of the water pump rotors.
With step S1, when the first time period is denoted as T1 and the second time period is denoted as T2, T1+ T2 constitutes a loop. Specifically, a target circulation time X is preset according to the self attribute of the water pump and the actual application scene of the water pump, in each circulation, corresponding rotor current of the water pump and a circulation time Z corresponding to the current circulation are recorded, and if the current circulation time Z is less than the target circulation time X, the circulation time Z plus one is continued to be circulated next time in the preset mode (T1 is operated and T2 is closed); if the number Z of the current circulation is equal to the target circulation number X, the water pump is shut down for T3 time after the water pump runs for T1 time, and whether the water pump has faults or not and the corresponding fault type are judged according to the recorded rotor current of the water pump so as to display the faults.
In the embodiment, the first time period T1 for the water pump to operate is preferably 3-5s, so as to prevent the water pump itself from being damaged due to the fact that the water pump is maintained in a fault state for too long while the current of the rotor of the water pump can be accurately recorded; the second time period T2 during which the water pump is turned off is preferably 3-4s to reduce the time required for fault detection while providing sufficient time to stop the water pump and improve efficiency; the target cycle number X is preferably more than 1, so that the influence of incapability of operating the water pump due to insufficient water is eliminated through multiple operation judgment, and meanwhile, the foreign matter can be tried to be cleaned under the condition that the water pump is blocked due to the foreign matter through multiple operation, so that the fault detection efficiency is further improved.
It should be noted that the duration of T3 is not limited in this embodiment, as long as it is sufficient to provide sufficient response time for the operation of other programs such as fault display.
In step S2, since the voltage applied to the water pump is constant in the operating state, the resistance values generated by the water pump are different for different fault types, and therefore, whether the water pump has a fault and the type of the fault can be determined by the range of the detected current of the rotor of the water pump, so as to prompt a customer and a maintenance person that the water pump has a fault, and the fault can be timely handled according to the determined fault type.
Due to the difference of the attributes and the working parameters of the water pumps, the current ranges corresponding to different fault types are different for different types of water pumps, and therefore, during specific implementation, the current ranges corresponding to different faults need to be determined according to the water pumps.
The exemplary embodiment provides a new water pump fault detection method, which is characterized in that a water pump is controlled to perform multiple on-off cycles, and the current of a water pump rotor in each cycle is detected to perform fault judgment, so that the fault judgment can be performed accurately in time, and in addition, the water pump is effectively prevented from being maintained in a fault state for a long time through the cyclic mode, the service life of the water pump is prolonged, and meanwhile, the fault misjudgment caused by accidental factors is avoided.
The fault detection method of the water pump of the present invention is described in detail with the more common examples of the water pump stalling fault, the light load fault and the normal operation, it should be understood that the two fault types are only used for illustration, and are not limited thereto, and for other fault types that may affect the rotor current, the fault detection method of the present invention may be used to perform fault detection after determining the current range of the water pump rotor corresponding to the fault type.
Fig. 2 shows a detailed flow diagram of step S2 in three common cases.
In one embodiment, step S2 includes:
and S21, if the current of the water pump rotor falls into a preset locked-rotor current range, determining that the locked-rotor fault occurs in the water pump.
When the locked-rotor fault occurs, the rotor resistance of the water pump is large, the rotor current of the water pump is reduced compared with the rotor current in normal operation, and therefore the locked-rotor current ranges corresponding to different water pumps can be determined according to working parameters and experimental test data of the water pump, so that the locked-rotor fault of the water pump is determined when the rotor current of the water pump in each circulation is detected to fall into the preset locked-rotor current range.
In one embodiment, step S2 includes:
and S22, if the current of the water pump rotor falls into a preset light-load current range, determining that the light-load fault occurs in the water pump.
When a light-load fault occurs, the rotor resistance of the water pump is smaller, so that the rotor current of the water pump is increased compared with the rotor current in normal operation, and the light-load current ranges corresponding to different water pumps can be determined according to working parameters and experimental test data of the water pump, so that when the condition that the rotor current of the water pump in each circulation falls into the preset light-load current range is detected, the water pump is determined to have the light-load fault.
Since the fault detection method in this embodiment is to perform fault detection before the water pump operates, the fault detection method includes a case that the water pump can normally operate in addition to a case that the water pump fails, and therefore, in order to save energy, in an embodiment, step S2 includes:
and S23, if the current water pump rotor current acquired by the current cycle falls into the current range corresponding to the normal operation of the water pump and the corresponding number of times of the current cycle is less than the preset number of times, determining that the water pump enters a normal operation state, and ending the cycle.
Before the cycle of fault detection is finished, if the rotor current of the water pump is detected to fall into the current range of normal operation, the factor of generating the fault is eliminated, so that the cycle times Z recorded before are subjected to zero clearing treatment and the cycle is stopped, and the water pump enters a normal operation state.
In one embodiment, before step S1, the method further includes: and if the preset connection signal from the water pump is not detected, determining that the connection loosening fault occurs in the water pump.
In this embodiment, the device is first kept powered up and then a detection program in the device processor determines whether the device is connected to the water pump.
Specifically, if the equipment comprises a water pump, the water pump end continuously sends a preset connection signal to a processor of the equipment to represent normal connection of the water pump, however, if the water pump is not arranged in the equipment, a detection program in the processor cannot run; if be provided with the water pump in the equipment, then the detection procedure in the treater can be based on whether accepting to predetermine the connection signal and judge whether normally to connect the water pump, if the treater does not detect predetermine the connection signal, then indicate that the junction pine of water pump and equipment takes off, at this moment, need not to carry out above-mentioned circulation and can confirm that the connection trouble appears in the water pump to indicate user and maintenance personal on display device.
In order to further improve the efficiency of fault detection, taking the device as a water heater as an example, if the connection between the water pump and the device is normal, whether the water pump normally enters the preheating or supercharging function is judged, and whether the cycle detection process is performed is determined based on the judgment result.
It should be noted that the water heater is only used for illustration, and the fault detection method in this embodiment can also be used for other devices with water pump having pressurization and/or preheating functions.
In one embodiment, as shown in fig. 3, before step S1, the method further includes:
s111, responding to a pressurization function starting signal, and acquiring first water flow at a water outlet and/or a water inlet of a water pump;
and S112, if the first water flow is smaller than the preset supercharging threshold value, determining that the water pump does not normally enter the supercharging function, and executing the step S1.
In this embodiment, if the user feels that the water pressure is small during the use process, the water pressure may be increased by triggering the start of the pressurization function of the water heater, that is, the first water flow rate at the water outlet and/or the water inlet of the water pump will be increased to the preset pressurization threshold value to meet the requirement of the user, so if it is detected that the first water flow rate at the water outlet and/or the water inlet of the water pump is smaller than the preset pressurization threshold value, it indicates that the water pump cannot normally enter the pressurization function at this time, and a fault may occur, so step S1 is executed to start the above fault detection.
In one embodiment, as shown in fig. 4, before step S1, the method further includes:
s121, responding to a preheating function starting signal, and acquiring second water flow and water temperature of a water outlet and/or a water inlet of the water pump;
and S122, if the second water flow is smaller than the preset flow threshold and/or the water temperature is smaller than the preset temperature threshold, determining that the water pump does not normally enter the preheating function, and executing the step S1.
In this embodiment, if the user needs to preheat the water heater, the water temperature may be raised by triggering the preheating function of the water heater, that is, the first water flow rate at the water outlet and/or the water inlet of the water pump will be increased to the preset flow threshold and the water in the water pump will be heated in a circulating manner to meet the user' S requirement, so if it is detected that the second water flow rate at the water outlet and/or the water inlet of the water pump is less than the preset flow threshold and/or the water temperature is less than the preset temperature threshold, it indicates that the water pump cannot normally enter the preheating function at this time, and a fault may occur, so step S1 is executed to start the above fault detection.
Fig. 5 is a block diagram illustrating a fault detection system for a water pump according to another exemplary embodiment of the present invention. The fault detection system in this embodiment is used for detecting before the water pump of water heater gets into the functional mode that corresponds whether the water pump can normal operating to carry out troubleshooting in advance, prevent that the direct fault state that gets into of water pump from continuously operating and causing the damage of water pump, prolonged the life of water pump.
Referring to fig. 5, the fault detection system of the water pump includes:
the circulation control module 1 is used for controlling the water pump to circulate in a preset mode and acquiring the rotor current of the water pump corresponding to each circulation, wherein the preset mode comprises that the water pump is controlled to be closed for a second time length after the water pump operates for the first time length;
and the fault judgment module 2 is used for judging whether the water pump has faults or not according to the acquired currents of the water pump rotors.
In the loop control module 1, when the first time period is denoted as T1 and the second time period is denoted as T2, T1+ T2 form a loop. Specifically, the circulation control module 1 presets a target circulation time X for the attributes of the water pump and the actual application scene thereof, records a corresponding water pump rotor current and a circulation time Z corresponding to the current circulation in each circulation, and if the current circulation time Z is less than the target circulation time X, continues to perform the next circulation in the preset manner (after the operation is performed for T1, the operation is performed for T2) after adding one to the circulation time Z; if the number Z of the current circulation is equal to the target circulation number X, the water pump is shut down for T3 time after the water pump runs for T1 time, and whether the water pump has faults or not and the corresponding fault type are judged according to the recorded rotor current of the water pump so as to display the faults.
In the embodiment, the first time period T1 for the water pump to operate is preferably 3-5s, so as to prevent the water pump itself from being damaged due to the fact that the water pump is maintained in a fault state for too long while the current of the rotor of the water pump can be accurately recorded; the second time period T2 during which the water pump is turned off is preferably 3-4s to reduce the time required for fault detection while providing sufficient time to stop the water pump and improve efficiency; the target cycle number X is preferably more than 1, so that the influence of incapability of operating the water pump due to insufficient water is eliminated through multiple operation judgment, and meanwhile, the foreign matter can be tried to be cleaned under the condition that the water pump is blocked due to the foreign matter through multiple operation, so that the fault detection efficiency is further improved.
It should be noted that the duration of T3 is not limited in this embodiment, as long as it is sufficient to provide sufficient response time for the operation of other programs such as fault display.
Because the voltage applied to the water pump in the running state is constant voltage, the resistance values of the resistors generated by the water pump are different according to different fault types, and therefore the fault judgment module 2 can judge whether the water pump has faults and the type of the faults according to the range of the detected current of the rotor of the water pump, so as to prompt customers and maintenance personnel that the water pump has faults and timely process the faults according to the determined fault type.
Due to the difference of the attributes of the water pumps and the working parameters thereof, the current ranges corresponding to different fault types are different for different types of water pumps, and therefore, during specific implementation, the current ranges corresponding to different faults need to be determined according to the water pumps.
This exemplary embodiment provides a new water pump fault detection system, control the water pump through circulation control module 1 and carry out many switch cycles to detect the water pump rotor current in circulating at every turn and carry out fault diagnosis for fault diagnosis module 2, thereby can in time accurately carry out fault diagnosis, and, through this kind of endless mode, effectively prevented that the water pump from maintaining at fault state for a long time, improved the life of water pump, still avoided the condition of fault misjudgement because of accidental factor causes simultaneously.
The fault detection system of the water pump is described in detail with more common examples of water pump stalling faults, light load faults and normal operation, it should be understood that the two fault types are only used for illustration, and are not limited thereto, and for other fault types that may affect the rotor current, the fault detection may be performed by the fault detection method of the present invention after determining the current range of the water pump rotor corresponding to the fault type.
Optionally, the fault determining module 2 is specifically configured to determine that a locked-rotor fault occurs in the water pump when the current of the water pump rotor falls within a preset locked-rotor current range.
When the locked rotor fault occurs, the rotor resistance of the water pump is large, the rotor current of the water pump is reduced compared with the rotor current in normal operation, and therefore the locked rotor current ranges corresponding to different water pumps can be determined according to working parameters and experimental test data of the water pump, and therefore when the fault judgment module 2 detects that the rotor current of the water pump in circulation at each time falls into the preset locked rotor current range, the locked rotor fault of the water pump is determined.
Optionally, the fault determining module 2 is specifically configured to determine that a light-load fault occurs in the water pump when the current of the water pump rotor falls within a preset light-load current range.
When a light-load fault occurs, the rotor resistance of the water pump is small, so that the rotor current of the water pump is increased compared with the rotor current in normal operation, and the light-load current ranges corresponding to different water pumps can be determined according to working parameters and experimental test data of the water pump, so that when the fault judgment module 2 detects that the rotor currents of the water pump in each circulation all fall into the preset light-load current range, the water pump is determined to have the light-load fault.
Because the fault detection system in this embodiment performs fault detection before the water pump works, except for the case of a fault, the fault detection system also includes the case that the water pump can normally operate, and therefore, in order to save energy, optionally, the fault determination module 2 is specifically configured to:
and when the current water pump rotor current acquired by the current cycle falls into the corresponding current range when the water pump normally operates and the corresponding number of times of the current cycle is less than the preset number of times, determining that the water pump enters a normal operation state, and ending the cycle.
Before the circulation for detecting the fault is finished, if the fault judging module 2 detects that the rotor current of the water pump falls into the current range of normal operation, the fault generating factor is eliminated, so that the circulation control module 1 performs zero clearing treatment on the previously recorded circulation times Z and stops circulation, and the water pump enters a normal operation state.
Optionally, the fault detection system of the water pump further includes a connection detection module 3, configured to determine that a connection release fault occurs in the water pump when a preset connection signal from the water pump is not detected.
In this embodiment, the device is first kept in the power-on state, and then whether the device is connected to the water pump is determined by the connection detection module 3 in the device.
Specifically, if the equipment comprises a water pump, the water pump end continuously sends a preset connection signal to the connection detection module 3 of the equipment to represent normal connection of the water pump, however, if the water pump is not arranged in the equipment, the connection detection module 3 does not trigger operation; if be provided with the water pump in the equipment, then connect the detection procedure among the detection module 3 and can judge whether normally to connect the water pump according to whether accepting to predetermine the connection signal, if connect detection module 3 and do not detect and predetermine the connection signal, then indicate that the junction pine of water pump and equipment takes off, at this moment, need not to carry out above-mentioned circulation and can confirm that the connection trouble appears in the water pump to indicate user and maintenance personal on display device.
In order to further improve the efficiency of fault detection, taking the device as a water heater as an example, if the connection between the water pump and the device is normal, the connection detection module 3 determines whether the water pump normally enters the preheating or supercharging function, and determines whether the circulation control module 1 performs the circulation detection process based on the determination result.
It should be noted that the water heater is only used for illustration, and the fault detection method in this embodiment can also be used for other devices with water pump having pressurization and/or preheating functions.
Optionally, the fault detection module of the water pump further includes a function detection module 4, configured to:
responding to a pressurization function starting signal, and acquiring first water flow at a water outlet and/or a water inlet of a water pump;
and if the first water flow is smaller than the preset supercharging threshold value, determining that the water pump does not normally enter the supercharging function, and calling the circulation control module 1.
In this embodiment, if a user feels that the water pressure is low during use, the water pressure can be increased by triggering the pressurization function of the water heater, that is, the first water flow rate at the water outlet and/or the water inlet of the water pump is increased to the preset pressurization threshold value to meet the requirement of the user, so if the function detection module 4 detects that the first water flow rate at the water outlet and/or the water inlet of the water pump is less than the preset pressurization threshold value, it indicates that the water pump cannot normally enter the pressurization function, and a fault may occur, so the circulation control module 1 is called to start the fault detection.
Optionally, the function detecting module 4 is further configured to:
responding to a preheating function starting signal, and acquiring a second water flow and a water temperature of a water outlet and/or a water inlet of the water pump;
and if the second water flow is smaller than the preset flow threshold and/or the water temperature is smaller than the preset temperature threshold, determining that the water pump does not normally enter the preheating function, and calling the circulation control module 1.
In this embodiment, if the user needs to preheat the water heater, the water temperature can be raised by triggering the preheating function of the water heater, that is, the first water flow at the water outlet and/or the water inlet of the water pump will be increased to the preset flow threshold and the water in the water pump will be heated in a circulating manner to meet the user's requirement, so if the function detection module 4 detects that the second water flow at the water outlet and/or the water inlet of the water pump is smaller than the preset flow threshold and/or the water temperature is smaller than the preset temperature threshold at this time, it indicates that the water pump cannot normally enter the preheating function, and a fault may occur, so the circulation control module 1 is called to start the above fault detection.
For the system embodiment, since it basically corresponds to the method embodiment, reference may be made to the partial description of the method embodiment for relevant points. The above-described embodiments of the apparatus are merely illustrative, and the units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the modules can be selected according to actual needs to achieve the purpose of the scheme of the invention. One of ordinary skill in the art can understand and implement it without inventive effort.
Fig. 6 is a structural diagram of an electronic device of a method for detecting a fault of a water pump according to an exemplary embodiment of the present invention. The electronic device comprises a memory, a processor and a computer program stored on the memory and capable of running on the processor, and the processor executes the program to realize the fault detection method of the water pump provided by the above exemplary embodiment. The electronic device 40 shown in fig. 6 is only an example, and should not bring any limitation to the functions and the scope of use of the embodiment of the present invention.
As shown in fig. 6, the electronic device 40 may take the form of a general purpose computing device, which may be, for example, a server device. The components of electronic device 40 may include, but are not limited to: the at least one processor 41, the at least one memory 42, and a bus 43 connecting the various system components (including the memory 42 and the processor 41).
The bus 43 includes a data bus, an address bus, and a control bus.
The memory 42 may include volatile memory, such as Random Access Memory (RAM)421 and/or cache memory 422, and may further include Read Only Memory (ROM) 423.
The processor 41 executes various functional applications and data processing, such as the fault detection method of the water pump provided in the above-described exemplary embodiment, by running the computer program stored in the memory 42.
The electronic device 40 may also communicate with one or more external devices 44 (e.g., keyboard, pointing device, etc.). Such communication may be through an input/output (I/O) interface 45. Also, model-generating device 40 may also communicate with one or more networks (e.g., a Local Area Network (LAN), a Wide Area Network (WAN), and/or a public network, such as the Internet) via network adapter 46. As shown, the network adapter 46 communicates with the other modules of the model-generated device 40 over a bus 43. It should be understood that although not shown in the figures, other hardware and/or software modules may be used in conjunction with the model-generating device 40, including but not limited to: microcode, device drivers, redundant processors, external disk drive arrays, RAID (disk array) systems, tape drives, and data backup storage systems, etc.
It should be noted that although in the above detailed description several units/modules or sub-units/modules of the electronic device are mentioned, such a division is merely exemplary and not mandatory. Indeed, the features and functionality of two or more of the units/modules described above may be embodied in one unit/module according to embodiments of the invention. Conversely, the features and functions of one unit/module described above may be further divided into embodiments by a plurality of units/modules.
An exemplary embodiment of the present invention provides a computer-readable storage medium on which a computer program is stored, which when executed by a processor, implements the angle detection method for detecting the rotation angle of a knob as provided in the above-described exemplary embodiment.
More specific examples, among others, that the readable storage medium may employ may include, but are not limited to: a portable disk, a hard disk, random access memory, read only memory, erasable programmable read only memory, optical storage device, magnetic storage device, or any suitable combination of the foregoing.
In a possible implementation, the invention may also be implemented in the form of a program product comprising program code for causing a terminal device to perform an angle detection method for detecting a rotation angle of a knob, as provided in the above-mentioned exemplary embodiments, when said program product is run on said terminal device.
Where program code for carrying out the invention is written in any combination of one or more programming languages, the program code may be executed entirely on the user device, partly on the user device, as a stand-alone software package, partly on the user device and partly on a remote device or entirely on the remote device.
While specific embodiments of the invention have been described above, it will be appreciated by those skilled in the art that this is by way of example only, and that the scope of the invention is defined by the appended claims. Various changes and modifications to these embodiments may be made by those skilled in the art without departing from the spirit and scope of the invention, and these changes and modifications are within the scope of the invention.
Claims (10)
1. A fault detection method of a water pump is characterized by comprising the following steps:
controlling the water pump to circulate in a preset mode, and obtaining the current of a rotor of the water pump corresponding to each circulation, wherein the preset mode comprises that the water pump is controlled to be closed for a second time after running for a first time;
and judging whether the water pump has faults and fault types according to the acquired currents of the water pump rotors.
2. The method for detecting the water pump fault according to claim 1, wherein the step of judging whether the water pump has the fault according to the acquired rotor currents of the water pump comprises the following steps:
and if the current of the water pump rotor falls into a preset locked-rotor current range, determining that the locked-rotor fault occurs in the water pump.
3. The method for detecting the water pump fault according to claim 1, wherein the step of judging whether the water pump has the fault according to the acquired rotor currents of the water pump comprises the following steps:
and if the current of the water pump rotor falls into a preset light-load current range, determining that the light-load fault occurs in the water pump.
4. The method for detecting a failure of a water pump according to claim 1, wherein the step of controlling the water pump to circulate in a preset manner comprises:
and if the current water pump rotor current acquired by the current cycle falls into the corresponding current range when the water pump normally operates and the corresponding number of times of the current cycle is less than the preset number of times, determining that the water pump enters a normal operation state, and ending the cycle.
5. The method for detecting a failure in a water pump according to claim 1, wherein said step of cyclically controlling said water pump in a preset manner is preceded by the steps of:
and if the preset connection signal from the water pump is not detected, determining that the connection loosening fault of the water pump occurs.
6. The method of detecting a failure in a water pump according to claim 1, wherein the step of cyclically controlling the water pump in a preset manner is preceded by the step of:
responding to a pressurization function starting signal, and acquiring first water flow at a water outlet and/or a water inlet of the water pump;
and if the first water flow is smaller than a preset supercharging threshold value, determining that the water pump does not normally enter a supercharging function, and executing the step of circularly controlling the water pump in a preset mode.
7. The method of detecting a failure in a water pump according to claim 1, wherein the step of cyclically controlling the water pump in a preset manner is preceded by the step of:
responding to a preheating function starting signal, and acquiring a second water flow and a water temperature of a water outlet and/or a water inlet of the water pump;
and if the second water flow is smaller than a preset flow threshold and/or the water temperature is smaller than a preset temperature threshold, determining that the water pump does not normally enter a preheating function, and executing the step of circularly controlling the water pump in a preset mode.
8. A fault detection system for a water pump, the fault detection system comprising:
the circulation control module is used for controlling the water pump to circulate in a preset mode and acquiring the current of a rotor of the water pump corresponding to each circulation, wherein the preset mode comprises that the water pump is controlled to be closed for a second time after running for a first time;
and the fault judgment module is used for judging whether the water pump has faults or not according to the acquired currents of the water pump rotors.
9. An electronic device comprising a memory, a processor, and a computer program stored on the memory and executable on the processor, wherein the processor implements the method of detecting a failure of a water pump according to any one of claims 1 to 7 when executing the computer program.
10. A computer-readable storage medium, on which a computer program is stored, which, when being executed by a processor, carries out a method of fault detection of a water pump according to any one of claims 1 to 7.
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| CN114483562B (en) | 2023-03-21 |
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