CN117664622A - Automatic performance test method and device for water supply equipment and electronic equipment - Google Patents
Automatic performance test method and device for water supply equipment and electronic equipment Download PDFInfo
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Abstract
The embodiment of the specification discloses an automatic performance test method and device of water supply equipment and electronic equipment. The method comprises the steps of obtaining a test instruction and determining rated flow of water supply equipment to be tested; setting a high-density sampling area and a low-density sampling area corresponding to rated flow based on the interval value; dividing the test sampling number into a first sampling number and a second sampling number based on a preset distribution proportion; uniformly setting sampling points in a high-density sampling area based on a first step length and a first sampling quantity; adjusting the valve opening of the water supply equipment to be tested based on an incremental PID control algorithm; and calculating the performance data of the water supply equipment to be tested until the performance data corresponding to all the target flow are obtained, and generating a performance curve of the water supply equipment to be tested. According to the embodiment of the specification, the test precision of performance test can be improved, the whole process can be automatically executed, no manual participation in the test process is needed, the test cost is reduced, and the test efficiency is improved.
Description
Technical Field
One or more embodiments of the present disclosure relate to data processing technology, and in particular, to an automatic performance testing method and apparatus for a water supply device, and an electronic device.
Background
The process of the performance test of the water supply equipment generally comprises the steps of collecting real-time analog electric signals such as flow, rotating speed, torque, inlet and outlet pressure and the like through a sensor, converting the real-time analog electric signals into digital signals which can be identified by a computer through a signal conditioning conversion device, transmitting the digital signals to the computer through a data acquisition card, carrying out filtering processing and analysis calculation on initial data through software on the computer, obtaining performance parameters such as lift, shaft power, efficiency and the like, and finally drawing corresponding performance curves, displaying and storing the performance curves. The traditional water supply equipment performance test is carried out in a manual mode on test operation and recorded data, and the problems of long measurement period, low measurement precision and efficiency, high labor intensity and the like exist. With the rapid development of automation and computer technology and the application in the industrial field, there are some ways of performing computer automation test by using a testing device, but the automation degree of the way is low, manual participation in the testing process is still required, or the accuracy of data processing is low. Therefore, at present, no water supply equipment performance test mode which can be used for realizing full process automation and accurately fitting out a performance curve exists.
Disclosure of Invention
To solve the above problems, one or more embodiments of the present disclosure describe an automatic performance testing method and apparatus for a water supply device, and an electronic device.
According to a first aspect, there is provided a method of automated performance testing of a water supply apparatus, the method comprising:
acquiring a test instruction, and determining rated flow, flow variable range and test sampling point number of water supply equipment to be tested based on the test instruction;
setting a high-density sampling area and a low-density sampling area corresponding to the rated flow based on an interval value by taking the rated flow of a preset multiplying power as the interval value, wherein the interval lower limit of the high-density sampling area is the rated flow minus the interval value, the interval upper limit of the high-density sampling area is the rated flow increased by the interval value, and the low-density sampling area is an interval except the high-density sampling area in the variable range of the flow;
dividing the test sampling quantity into a first sampling quantity and a second sampling quantity based on a preset distribution proportion, calculating a first step length of the high-density sampling area based on the first sampling quantity, the rated flow and the interval value, calculating a second step length of the low-density sampling area based on the second sampling quantity, the rated flow and the interval value, wherein the first sampling quantity is not smaller than the second sampling quantity, and the first step length is smaller than the second step length;
Uniformly setting sampling points in the high-density sampling area based on the first step length and the first sampling quantity, uniformly setting the sampling points in the low-density sampling area based on the second step length and the second sampling quantity, and determining the target flow corresponding to each sampling point;
adjusting the valve opening of the water supply equipment to be measured based on an incremental PID control algorithm, and sequentially adjusting the current flow of the water supply equipment to be measured to each target flow;
and calculating the performance data of the water supply equipment to be measured after the current flow is stabilized at the target flow, and generating a performance curve of the water supply equipment to be measured after the performance data corresponding to all the target flow are obtained.
Preferably, the adjusting the valve opening of the water supply device to be measured based on the incremental PID control algorithm includes:
setting the square of the flow difference between the current flow and the target flow as a position tracking deviation value, setting a dead zone control algorithm based on the position tracking deviation value, and adjusting the valve opening of the water supply equipment to be tested based on an incremental PID control algorithm and the dead zone control algorithm, so that the PID is not output when the position tracking deviation value is not greater than a preset adjustable parameter, and the PID is normally output when the position tracking deviation value is greater than the adjustable parameter.
Preferably, the adjusting the current flow of the water supply device to be measured to each target flow sequentially includes:
and sequentially adjusting the current flow of the water supply equipment to be tested into each target flow, and sequentially maintaining the current flow at the position of each target flow for a target sampling duration, wherein the target sampling duration is determined based on the test sampling point number.
Preferably, before the maintaining the current flow at the position of each target flow in sequence for the target sampling duration, the method further includes:
inquiring the test sampling points in a preset database to obtain a target sampling time length, wherein the database stores a mapping relation between the test sampling points and the target sampling time length, and the test sampling points are in negative correlation with the target sampling time length.
Preferably, the calculating the performance data of the water supply device to be measured includes:
acquiring acquisition data of the water supply equipment to be detected, and calculating performance data of the water supply equipment to be detected based on the acquisition data, wherein the acquisition data comprises single acquisition flow, inlet pressure, outlet pressure, inlet flow rate, outlet flow rate, inlet pressure taking point height from a reference surface and outlet pressure taking point height from the reference surface, and the performance data comprises actual flow, total lift, water power of the water supply equipment and efficiency of the water supply equipment.
Preferably, after the acquiring the acquired data of the water supply device to be measured, the method further includes:
and eliminating abnormal data in the acquired data based on a digital filtering algorithm.
Preferably, the generating the performance curve of the water supply device to be measured includes:
and generating a performance curve and an average energy consumption evaluation index of the water supply equipment to be tested, wherein the performance curve comprises a flow-lift curve, a flow-power curve and a flow-efficiency curve.
According to a second aspect, there is provided an automated performance testing apparatus for a water supply device, the apparatus comprising:
the acquisition module is used for acquiring a test instruction and determining rated flow, flow variable range and test sampling point number of the water supply equipment to be tested based on the test instruction;
the first setting module is used for setting a high-density sampling area and a low-density sampling area corresponding to the rated flow by taking the rated flow of a preset multiplying power as an interval value, wherein the interval lower limit of the high-density sampling area is the rated flow minus the interval value, the interval upper limit of the high-density sampling area is the rated flow increased by the interval value, and the low-density sampling area is an interval except the high-density sampling area in the variable flow range;
The calculation module is used for dividing the test sampling quantity into a first sampling quantity and a second sampling quantity based on a preset distribution proportion, calculating a first step length of the high-density sampling area based on the first sampling quantity, the rated flow and the interval value, calculating a second step length of the low-density sampling area based on the second sampling quantity, the rated flow and the interval value, wherein the first sampling quantity is not smaller than the second sampling quantity, and the first step length is smaller than the second step length;
the second setting module is used for uniformly setting sampling points in the high-density sampling area based on the first step length and the first sampling quantity, uniformly setting the sampling points in the low-density sampling area based on the second step length and the second sampling quantity, and determining the target flow corresponding to each sampling point;
the adjusting module is used for adjusting the valve opening of the water supply equipment to be measured based on an incremental PID control algorithm and sequentially adjusting the current flow of the water supply equipment to be measured to each target flow;
and the generating module is used for calculating the performance data of the water supply equipment to be tested after the current flow is stabilized at the target flow until the performance data corresponding to all the target flow are obtained, and then generating a performance curve of the water supply equipment to be tested.
According to a third aspect, there is provided an electronic device comprising a processor and a memory;
the processor is connected with the memory;
the memory is used for storing executable program codes;
the processor runs a program corresponding to executable program code stored in the memory by reading the executable program code for performing the steps of the method as provided in the first aspect or any one of the possible implementations of the first aspect.
According to a fourth aspect, there is provided a computer readable storage medium having stored thereon a computer program having instructions stored therein which, when run on a computer or processor, cause the computer or processor to perform a method as provided by any one of the possible implementations of the first aspect or the first aspect.
According to the method and the device provided by the embodiment of the specification, the sampling points can be set in different step sizes in the flow variable range corresponding to the rated flow in a step size variable flow regulation mode, so that the step size of a high-density sampling area with larger influence on the performance curve is smaller, the sampled data in the same range is more, the valve opening is controlled more accurately by combining an incremental PID control algorithm, the effectiveness and the accuracy of the obtained performance data are ensured, the performance curve is more in accordance with the actual condition of the water supply equipment to be tested, and the testing precision of the performance test is improved. And the whole process can be automatically executed without manual participation in the test process, so that the test cost is reduced and the test efficiency is improved.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are required to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
Fig. 1 is a schematic structural view of a water supply device performance test system according to an embodiment of the present specification.
Fig. 2 is a flow chart illustrating an automated performance testing method of a water supply apparatus according to an embodiment of the present disclosure.
Fig. 3 is a schematic diagram of a flow-head curve generated in one embodiment of the present description.
FIG. 4 is a schematic diagram of a flow-power curve generated in one embodiment of the present description.
FIG. 5 is a schematic illustration of a flow-efficiency curve generated in one embodiment of the present description.
Fig. 6 is a schematic structural view of an automatic performance test apparatus of a water supply device in one embodiment of the present specification.
Fig. 7 is a schematic structural diagram of an electronic device according to an embodiment of the present disclosure.
Detailed Description
The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application.
In the following description, the terms "first," "second," and "first," are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. The following description provides various embodiments of the present application, and various embodiments may be substituted or combined, so that the present application is also intended to encompass all possible combinations of the same and/or different embodiments described. Thus, if one embodiment includes feature A, B, C and another embodiment includes feature B, D, then the present application should also be considered to include embodiments that include one or more of all other possible combinations including A, B, C, D, although such an embodiment may not be explicitly recited in the following.
The following description provides examples and does not limit the scope, applicability, or examples set forth in the claims. Changes may be made in the function and arrangement of elements described without departing from the scope of the application. Various examples may omit, replace, or add various procedures or components as appropriate. For example, the described methods may be performed in a different order than described, and various steps may be added, omitted, or combined. Furthermore, features described with respect to some examples may be combined into other examples.
Referring to fig. 1, fig. 1 is a schematic diagram illustrating a system architecture of an automatic performance testing method for a water supply device according to an embodiment of the present disclosure.
As shown in fig. 1, the system architecture for the automatic performance test of the water supply device at least comprises a surge tank, a valve, a pipeline, a sensing system, an electric control system, a power distribution system, a water supply device and an upper computer; the flow of the water supply equipment is controlled through the electric regulating valve, different operation conditions are tested, and the automatic measurement of the performance of the water supply equipment is realized.
In the system, a PLC of an electric control system collects relevant data of inlet pressure sensors, outlet pressure sensors, flow sensors, temperature sensors, rotating speed sensors and electric parameters (current, voltage and power); the data are transmitted to the upper computer through Ethernet communication, and meanwhile, the upper computer writes the data into the PLC, so that the valve and the frequency converter are controlled, and the control of flow and the control of the running rotating speed of the water supply equipment are realized; the electric parameters (current, voltage and power) related to the test are measured by an electric parameter measuring instrument, other various parameters are collected and transmitted by corresponding sensors, collected signals are transmitted to an upper computer through a PLC, and various data in the test process are monitored in real time.
In addition, it should be noted that fig. 1 is only a system provided by the disclosure, and other systems may also be included in practical applications.
Referring next to fig. 2, fig. 2 is a flowchart illustrating an overall method for testing the automation performance of a water supply device according to an embodiment of the present disclosure, where the method for testing the automation performance of a water supply device may be used in an upper computer of the system.
Fig. 2 is a schematic flow chart of an automatic performance testing method of a water supply device according to an embodiment of the present application. In an embodiment of the present application, the method includes:
s101, acquiring a test instruction, and determining rated flow, flow variable range and test sampling point number of water supply equipment to be tested based on the test instruction.
In the embodiment of the specification, after the staff installs the water supply equipment to be tested, which needs to be tested, in the test system, the staff can operate through terminals such as a mobile phone, a computer and the like so as to send a test instruction to the upper computer. After the upper computer receives the test instruction, the test instruction is analyzed to obtain the rated flow, the flow variable range and the test sampling point number of the water supply equipment to be tested, which are set by the staff, and the automatic test process is started. The variable flow range is understood to mean the upper and lower limit range in which the flow can be changed, i.e. the maximum and minimum values which characterize the flow which can be adjusted. The variable flow range and the rated flow are set to different values according to the model of the water supply equipment to be tested so as to meet the actual condition of the water supply equipment to be tested.
S102, taking the rated flow of the preset multiplying power as an interval value, and setting a high-density sampling area and a low-density sampling area corresponding to the rated flow based on the interval value.
The lower limit of the interval of the high-density sampling area is the rated flow minus the interval value, the upper limit of the interval of the high-density sampling area is the rated flow increased by the interval value, and the low-density sampling area is the interval of the flow variable range except the high-density sampling area.
In the embodiment of the present disclosure, the upper computer will first set a high-density sampling area and a low-density sampling area according to the rated flow, where the high-density sampling area is a sampling area with more densely distributed sampling points, and the low-density sampling area is a sampling area with more sparsely distributed sampling points. Obviously, in the performance curve of the water supply device, the data near the rated flow rate is more important, and the accuracy of the corresponding performance data should be more ensured, that is, more sampling points should be set. Therefore, the upper computer takes the range of the interval value around the rated flow as a high-density sampling area, and takes the other ranges as low-density sampling areas.
As an example, assume a rated flow of And the preset multiplying power is 0.1 times, the interval value is +.>Then the high density sampling area is +.>The low density sampling area is +.>. Wherein (1)>Is the maximum measured flow value.
S103, dividing the test sampling number into a first sampling number and a second sampling number based on a preset distribution proportion, calculating a first step length of the high-density sampling area based on the first sampling number, the rated flow and the interval value, and calculating a second step length of the low-density sampling area based on the second sampling number, the rated flow and the interval value.
Wherein the first number of samples is not less than the second number of samples, and the first step size is less than the second step size.
In the embodiment of the specification, a worker can set a preset distribution ratio in an upper computer in advance according to the prediction of the actual condition of the water supply equipment to be tested and the combination of experience. The upper computer divides the test sampling quantity according to a preset distribution proportion, the first sampling quantity after division is the quantity of sampling points arranged in the high-density sampling area, and the second sampling quantity is the quantity of sampling points arranged in the low-density sampling area. Since the data collected in the high-density sampling region has a greater influence on the performance curve, it is more important that the host computer should avoid that the second number of samples is greater than the first number of samples. If the second sampling number is greater than the first sampling number after being divided according to the preset distribution proportion, the upper computer can divide the test sampling number directly without dividing according to the preset distribution proportion. And then, the upper computer calculates the sampling number, the rated flow and the interval value according to the corresponding step size calculation formula so as to obtain a first step size and a second step size. The first step length and the second step length are the intervals between sampling points arranged in the high-density sampling area and the low-density sampling area.
As an example, again taking the nominal flow and interval values in the previous example as an example, the step size calculation may be as follows:
wherein,step size is increased for flow, +.>For the current flow value, +.>Is the maximum measured flow value.
S104, uniformly setting sampling points in the high-density sampling area based on the first step length and the first sampling quantity, uniformly setting the sampling points in the low-density sampling area based on the second step length and the second sampling quantity, and determining the target flow corresponding to each sampling point.
In the embodiment of the present disclosure, after the first step size and the second step size are obtained, the upper computer uniformly sets sampling points in the high-density sampling area according to the first step size and the first sampling number, and uniformly sets sampling points in the low-density sampling area according to the second step size and the second sampling number, respectively. Each sampling point is a measuring point which needs to collect performance data, and because the position of the sampling point is fixed, the upper computer can determine the target flow corresponding to each sampling point through the position of the sampling point in the variable flow range, and each target flow is the flow which needs to be actually controlled to be generated by the water supply equipment to be measured, so that the performance data can be obtained.
S105, adjusting the valve opening of the water supply equipment to be tested based on an incremental PID control algorithm, and sequentially adjusting the current flow of the water supply equipment to be tested to each target flow.
In the embodiment of the specification, after each target flow is determined, the upper computer adjusts the valve opening of the water supply equipment to be measured through an incremental PID control algorithm, so that the control of the current flow of the water supply equipment to be measured is realized through the control of the valve opening, the current flow is further sequentially adjusted to each target flow, and each sensor data under the target flow position is collected and collected so as to calculate corresponding performance data later.
The expression of the incremental PID control algorithm is as follows:
wherein,is a sampling sequence number; />Is->An output value of the subsampling; />Is->Subsampled input offset values;first->Subsampling the input offset value; />Is an integral coefficient; />Is a differential coefficient.
The actual control amount u of the valve can be calculated by the following formula:
in one embodiment, the adjusting the valve opening of the water supply device to be measured based on the incremental PID control algorithm includes:
setting the square of the flow difference between the current flow and the target flow as a position tracking deviation value, setting a dead zone control algorithm based on the position tracking deviation value, and adjusting the valve opening of the water supply equipment to be tested based on an incremental PID control algorithm and the dead zone control algorithm, so that the PID is not output when the position tracking deviation value is not greater than a preset adjustable parameter, and the PID is normally output when the position tracking deviation value is greater than the adjustable parameter.
In the embodiment of the present disclosure, in order to reduce excessive adjustment and oscillation of a controller, ensure stability and safety of a system, and improve accuracy and response time of control under a low flow condition, the present application sets the square of a flow difference between a current flow and a target flow as a position tracking offset value, and sets a dead zone for the position tracking offset value. The position tracking deviation value is the input deviation value in the incremental PID control algorithm. The dead zone control algorithm may be:
wherein,for position tracking bias +.>Is an adjustable parameter, when->Less than->When the output is 0, the opposite is PID output.
In one embodiment, the adjusting the current flow rate of the water supply device to be measured to each target flow rate sequentially includes:
and sequentially adjusting the current flow of the water supply equipment to be tested into each target flow, and sequentially maintaining the current flow at the position of each target flow for a target sampling duration, wherein the target sampling duration is determined based on the test sampling point number.
In the embodiment of the present disclosure, in order to ensure that when the current flow is adjusted to each target flow, the sensor can fully collect relevant data, and further determine the target sampling duration according to the number of test sampling points. The target sampling duration is maintained each time the current flow reaches a target flow.
As one example, the larger the number of test samples, the smaller the target sample duration. For example, when the number of test sampling points is not more than 10, the target sampling period may be 10s, and when the number of test sampling points is more than 10, the target sampling period may be 5s.
In one embodiment, before the maintaining the current flow at the position of each target flow in sequence for a target sampling duration, the method further includes:
inquiring the test sampling points in a preset database to obtain a target sampling time length, wherein the database stores a mapping relation between the test sampling points and the target sampling time length, and the test sampling points are in negative correlation with the target sampling time length.
In this embodiment of the present disclosure, the target sampling duration may be obtained according to a preset database query. The staff can set different target sampling time lengths for different test sampling points in advance, summarize the data, construct a database and store the mapping relation between the two in the database. In the actual processing process, the upper computer only needs to query the database according to the test sampling points, and the corresponding target sampling duration can be obtained.
And S106, calculating the performance data of the water supply equipment to be tested after the current flow is stabilized at the target flow, and generating a performance curve of the water supply equipment to be tested after the performance data corresponding to all the target flows are obtained.
In this embodiment of the present disclosure, after the flow reaches the set target flow, it needs to determine whether the data is already stable, and the stability criterion of the flow may be +/-3% of the corresponding value of the sampling flow point. After the current flow is stabilized at the target flow, the upper computer collects parameter data such as inlet and outlet pressure, inlet and outlet flow velocity and the like of the water supply equipment to be tested through the sensor, and calculates performance data such as flow, total lift, equipment efficiency and the like. After the performance data of all the sampling points are obtained by calculation, the upper computer generates a performance curve corresponding to each performance data according to the performance data, and displays the performance curve so as to represent the performance condition of the water supply equipment to be tested through the performance curve. The flow rate is one of the performance data, but in the process of judging whether the current flow rate is stable, the flow rate data is determined through the flow rate acquisition value in the sensor data, and the flow rate data is collected as the performance data in the subsequent process.
In one embodiment, the calculating the performance data of the water supply device to be measured includes:
acquiring acquisition data of the water supply equipment to be detected, and calculating performance data of the water supply equipment to be detected based on the acquisition data, wherein the acquisition data comprises single acquisition flow, inlet pressure, outlet pressure, inlet flow rate, outlet flow rate, inlet pressure taking point height from a reference surface and outlet pressure taking point height from the reference surface, and the performance data comprises actual flow, total lift, water power of the water supply equipment and efficiency of the water supply equipment.
In the present description, the performance data mainly includes actual flow, total head, water supply water power, and water supply efficiency. The performance data are all determined according to the collected data collected by the sensor. The actual flow Q can be directly acquired according to a flow sensor, the total lift H of the water supply equipment is defined as useful energy of fluid unit weight, and the calculation formula is as follows:
wherein,and->Representing the inlet pressure and outlet pressure of the water supply device, +.>And->Representing the inlet and outlet flow rates of the water supply device, +.>And->Representing the height of the water supply device inlet pressure point from the reference surface and the height of the water supply device outlet pressure point from the reference surface, +.>For medium density->Gravitational acceleration.
Water power of water supply equipmentThe calculation formula of (2) is as follows:
efficiency of water supply equipmentThe calculation formula of (2) is as follows:
wherein,is the shaft power of the water supply device.
In an embodiment, after the acquiring the acquired data of the water supply device to be measured, the method further includes:
and eliminating abnormal data in the acquired data based on a digital filtering algorithm.
In the embodiment of the present disclosure, the flow value will be processed by using a digital filtering algorithm to reduce the random error, and the specific calculation formula is as follows:
Wherein,for the current flow, n is the number of acquisitions, +.>Flow value for single acquisition; to reduce the noise impulse, the first and last two largest data will be culled.
In one embodiment, the generating the performance curve of the water supply device to be measured includes:
and generating a performance curve and an average energy consumption evaluation index of the water supply equipment to be tested, wherein the performance curve comprises a flow-lift curve, a flow-power curve and a flow-efficiency curve.
In the embodiment of the present specification, a least square matrix method is used to solve a flow-lift Q-H fitting curve equation, namely, the following steps:
wherein,，/>，/>，/>，/>the five coefficients are solved by adopting a matrix method, and the solving process is as follows:
collecting data of each collecting pointSubstituting the above formula to obtain +.>，/>，/>，/>，/>These five coefficients.
Similarly, a least square matrix method is adopted to solve a flow-power Q-P fitting curve equation, namely:
wherein,these five coefficients are solved by using a matrix method, and the solving process is similar to Q-H, and the description thereof will not be repeated here.
Likewise, a least squares matrix method is used to solve the flow-efficiencyFitting a curve equation, namely solving:
wherein,these five coefficients are solved by using a matrix method, and the solving process is similar to Q-H, and the description thereof will not be repeated here.
The final plotted water supply flow-head, flow-power and flow-efficiency curves may be as shown in fig. 3, 4, 5.
In addition, taking kilowatt-hour consumed by pressurizing 100 meters per cubic water as a core idea, the application also provides a water supply equipment energy consumption evaluation index e, and calculating the water supply equipment energy consumption evaluation index by taking flow, lift and power under different measuring points as basic data, wherein the water supply equipment energy consumption evaluation index is as follows:
wherein P is power, and the unit is kW; q is flow in units ofThe method comprises the steps of carrying out a first treatment on the surface of the H is the lift, and the unit is m. And (5) averaging all the energy consumption evaluation indexes to obtain an average energy consumption evaluation index.
An automatic performance testing apparatus for a water supply device according to an embodiment of the present application will be described in detail with reference to fig. 6. It should be noted that, the automatic performance testing apparatus of the water supply device shown in fig. 6 is used to execute the method of the embodiment shown in fig. 2 of the present application, and for convenience of explanation, only the portion relevant to the embodiment of the present application is shown, and specific technical details are not disclosed, please refer to the embodiment shown in fig. 2 of the present application.
Referring to fig. 6, fig. 6 is a schematic structural diagram of an automatic performance testing device for a water supply device according to an embodiment of the present application. As shown in fig. 6, the apparatus includes:
The acquisition module 601 is configured to acquire a test instruction, and determine a rated flow, a variable flow range and a test sampling point number of the water supply device to be tested based on the test instruction;
a first setting module 602, configured to set, with the rated flow of a preset multiplying power as an interval value, a high-density sampling area and a low-density sampling area corresponding to the rated flow based on the interval value, where a lower interval limit of the high-density sampling area is the rated flow minus the interval value, an upper interval limit of the high-density sampling area is the rated flow increased by the interval value, and the low-density sampling area is an interval other than the high-density sampling area in the variable flow range;
a calculating module 603, configured to divide the test sample number into a first sample number and a second sample number based on a preset allocation proportion, calculate a first step size of the high-density sample area based on the first sample number, the rated flow rate, and the interval value, calculate a second step size of the low-density sample area based on the second sample number, the rated flow rate, and the interval value, where the first sample number is not less than the second sample number, and the first step size is less than the second step size;
A second setting module 604, configured to uniformly set sampling points in the high-density sampling area based on the first step size and the first sampling number, uniformly set sampling points in the low-density sampling area based on the second step size and the second sampling number, and determine a target flow corresponding to each sampling point;
the adjusting module 605 is configured to adjust a valve opening of the water supply device to be measured based on an incremental PID control algorithm, and sequentially adjust a current flow of the water supply device to be measured to each of the target flows;
and the generating module 606 is configured to calculate performance data of the water supply device to be measured each time the current flow is stabilized at the target flow, until the performance data corresponding to all the target flows are obtained, and then generate a performance curve of the water supply device to be measured.
In one embodiment, the adjustment module 605 is specifically configured to:
setting the square of the flow difference between the current flow and the target flow as a position tracking deviation value, setting a dead zone control algorithm based on the position tracking deviation value, and adjusting the valve opening of the water supply equipment to be tested based on an incremental PID control algorithm and the dead zone control algorithm, so that the PID is not output when the position tracking deviation value is not greater than a preset adjustable parameter, and the PID is normally output when the position tracking deviation value is greater than the adjustable parameter.
In one embodiment, the adjustment module 605 is specifically further configured to:
and sequentially adjusting the current flow of the water supply equipment to be tested into each target flow, and sequentially maintaining the current flow at the position of each target flow for a target sampling duration, wherein the target sampling duration is determined based on the test sampling point number.
In one embodiment, the adjustment module 605 is specifically further configured to:
inquiring the test sampling points in a preset database to obtain a target sampling time length, wherein the database stores a mapping relation between the test sampling points and the target sampling time length, and the test sampling points are in negative correlation with the target sampling time length.
In one implementation, the generating module 606 is specifically configured to:
acquiring acquisition data of the water supply equipment to be detected, and calculating performance data of the water supply equipment to be detected based on the acquisition data, wherein the acquisition data comprises single acquisition flow, inlet pressure, outlet pressure, inlet flow rate, outlet flow rate, inlet pressure taking point height from a reference surface and outlet pressure taking point height from the reference surface, and the performance data comprises actual flow, total lift, water power of the water supply equipment and efficiency of the water supply equipment.
In one implementation, the generating module 606 is specifically further configured to:
and eliminating abnormal data in the acquired data based on a digital filtering algorithm.
In one implementation, the generating module 606 is specifically further configured to:
and generating a performance curve and an average energy consumption evaluation index of the water supply equipment to be tested, wherein the performance curve comprises a flow-lift curve, a flow-power curve and a flow-efficiency curve.
It will be apparent to those skilled in the art that the embodiments of the present application may be implemented in software and/or hardware. "Unit" and "module" in this specification refer to software and/or hardware capable of performing a specific function, either alone or in combination with other components, such as Field programmable gate arrays (Field-Programmable Gate Array, FPGAs), integrated circuits (Integrated Circuit, ICs), etc.
The processing units and/or modules of the embodiments of the present application may be implemented by an analog circuit that implements the functions described in the embodiments of the present application, or may be implemented by software that executes the functions described in the embodiments of the present application.
Referring to fig. 7, a schematic structural diagram of an electronic device according to an embodiment of the present application is shown, which may be used to implement the method in the embodiment shown in fig. 2. As shown in fig. 7, an electronic device 700 may include: at least one processor 701, at least one network interface 704, a user interface 703, a memory 705, at least one communication bus 702.
Wherein the communication bus 702 is used to enable connected communications between these components.
The user interface 703 may include a Display screen (Display), a Camera (Camera), and the optional user interface 703 may further include a standard wired interface, and a wireless interface.
The network interface 704 may optionally include a standard wired interface, a wireless interface (e.g., WI-FI interface), among others.
Wherein the processor 701 may include one or more processing cores. The processor 701 utilizes various interfaces and lines to connect various portions of the overall electronic device 700, perform various functions of the electronic device 700, and process data by executing or executing instructions, programs, code sets, or instruction sets stored in the memory 705, and invoking data stored in the memory 705. Alternatively, the processor 701 may be implemented in hardware in at least one of digital signal processing (Digital Signal Processing, DSP), field programmable gate array (Field-Programmable Gate Array, FPGA), programmable logic array (Programmable Logic Array, PLA). The processor 701 may integrate one or a combination of several of a central processing unit (Central Processing Unit, CPU), an image central processing unit (Graphics Processing Unit, GPU), and a modem, etc. The CPU mainly processes an operating system, a user interface, an application program and the like; the GPU is used for rendering and drawing the content required to be displayed by the display screen; the modem is used to handle wireless communications. It will be appreciated that the modem may not be integrated into the processor 701 and may be implemented by a single chip.
The memory 705 may include a random access memory (Random Access Memory, RAM) or a Read-only memory (Read-only memory). Optionally, the memory 705 includes a non-transitory computer readable medium (non-transitory computer-readable storage medium). Memory 705 may be used to store instructions, programs, code, sets of codes, or instruction sets. The memory 705 may include a stored program area and a stored data area, wherein the stored program area may store instructions for implementing an operating system, instructions for at least one function (such as a touch function, a sound playing function, an image playing function, etc.), instructions for implementing the various method embodiments described above, etc.; the storage data area may store data or the like referred to in the above respective method embodiments. The memory 705 may also optionally be at least one storage device located remotely from the processor 701. As shown in fig. 7, an operating system, a network communication module, a user interface module, and program instructions may be included in the memory 705, which is a type of computer storage medium.
In the electronic device 700 shown in fig. 7, the user interface 703 is mainly used for providing an input interface for a user, and acquiring data input by the user; and the processor 701 may be used to call an automatic performance test application of the water supply device stored in the memory 705 and specifically perform the following operations:
Acquiring a test instruction, and determining rated flow, flow variable range and test sampling point number of water supply equipment to be tested based on the test instruction;
setting a high-density sampling area and a low-density sampling area corresponding to the rated flow based on an interval value by taking the rated flow of a preset multiplying power as the interval value, wherein the interval lower limit of the high-density sampling area is the rated flow minus the interval value, the interval upper limit of the high-density sampling area is the rated flow increased by the interval value, and the low-density sampling area is an interval except the high-density sampling area in the variable range of the flow;
dividing the test sampling quantity into a first sampling quantity and a second sampling quantity based on a preset distribution proportion, calculating a first step length of the high-density sampling area based on the first sampling quantity, the rated flow and the interval value, calculating a second step length of the low-density sampling area based on the second sampling quantity, the rated flow and the interval value, wherein the first sampling quantity is not smaller than the second sampling quantity, and the first step length is smaller than the second step length;
uniformly setting sampling points in the high-density sampling area based on the first step length and the first sampling quantity, uniformly setting the sampling points in the low-density sampling area based on the second step length and the second sampling quantity, and determining the target flow corresponding to each sampling point;
Adjusting the valve opening of the water supply equipment to be measured based on an incremental PID control algorithm, and sequentially adjusting the current flow of the water supply equipment to be measured to each target flow;
and calculating the performance data of the water supply equipment to be measured after the current flow is stabilized at the target flow, and generating a performance curve of the water supply equipment to be measured after the performance data corresponding to all the target flow are obtained.
The present application also provides a computer readable storage medium having stored thereon a computer program which when executed by a processor performs the steps of the above method. The computer readable storage medium may include, among other things, any type of disk including floppy disks, optical disks, DVDs, CD-ROMs, micro-drives, and magneto-optical disks, ROM, RAM, EPROM, EEPROM, DRAM, VRAM, flash memory devices, magnetic or optical cards, nanosystems (including molecular memory ICs), or any type of media or device suitable for storing instructions and/or data.
It should be noted that, for simplicity of description, the foregoing method embodiments are all expressed as a series of action combinations, but it should be understood by those skilled in the art that the present application is not limited by the order of actions described, as some steps may be performed in other order or simultaneously in accordance with the present application. Further, those skilled in the art will also appreciate that the embodiments described in the specification are all preferred embodiments, and that the acts and modules referred to are not necessarily required in the present application.
In the foregoing embodiments, the descriptions of the embodiments are emphasized, and for parts of one embodiment that are not described in detail, reference may be made to related descriptions of other embodiments.
In the several embodiments provided in this application, it should be understood that the disclosed apparatus may be implemented in other ways. For example, the apparatus embodiments described above are merely illustrative, such as the division of the units, merely a logical function division, and there may be additional manners of dividing the actual implementation, such as multiple units or components may be combined or integrated into another system, or some features may be omitted, or not performed. Alternatively, the coupling or direct coupling or communication connection shown or discussed with each other may be through some service interface, device or unit indirect coupling or communication connection, electrical or otherwise.
The units described as separate units may or may not be physically separate, and units shown 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 units may be selected according to actual needs to achieve the purpose of the solution of this embodiment.
In addition, each functional unit in each embodiment of the present application may be integrated in one processing unit, or each unit may exist alone physically, or two or more units may be integrated in one unit. The integrated units may be implemented in hardware or in software functional units.
The integrated units, if implemented in the form of software functional units and sold or used as stand-alone products, may be stored in a computer readable memory. Based on such understanding, the technical solution of the present application may be embodied in essence or a part contributing to the prior art or all or part of the technical solution in the form of a software product stored in a memory, including several instructions for causing a computer device (which may be a personal computer, a server or a network device, etc.) to perform all or part of the steps of the method described in the embodiments of the present application. And the aforementioned memory includes: a U-disk, a Read-Only Memory (ROM), a random access Memory (Random Access Memory, RAM), a removable hard disk, a magnetic disk, or an optical disk, or other various media capable of storing program codes.
Those of ordinary skill in the art will appreciate that all or a portion of the steps in the various methods of the above embodiments may be performed by hardware associated with a program that is stored in a computer readable memory, which may include: flash disk, read-Only Memory (ROM), random-access Memory (Random Access Memory, RAM), magnetic or optical disk, and the like.
The foregoing is merely exemplary embodiments of the present disclosure and is not intended to limit the scope of the present disclosure. That is, equivalent changes and modifications are contemplated by the teachings of this disclosure, which fall within the scope of the present disclosure. Embodiments of the present disclosure will be readily apparent to those skilled in the art from consideration of the specification and practice of the disclosure herein. This application is intended to cover any adaptations, uses, or adaptations of the disclosure following, in general, the principles of the disclosure and including such departures from the present disclosure as come within known or customary practice within the art to which the disclosure pertains. It is intended that the specification and examples be considered as exemplary only, with a scope and spirit of the disclosure being indicated by the claims.
Claims (10)
1. A method for automated performance testing of a water supply apparatus, the method comprising:
Acquiring a test instruction, and determining rated flow, flow variable range and test sampling point number of water supply equipment to be tested based on the test instruction;
setting a high-density sampling area and a low-density sampling area corresponding to the rated flow based on an interval value by taking the rated flow of a preset multiplying power as the interval value, wherein the interval lower limit of the high-density sampling area is the rated flow minus the interval value, the interval upper limit of the high-density sampling area is the rated flow increased by the interval value, and the low-density sampling area is an interval except the high-density sampling area in the variable range of the flow;
dividing the test sampling quantity into a first sampling quantity and a second sampling quantity based on a preset distribution proportion, calculating a first step length of the high-density sampling area based on the first sampling quantity, the rated flow and the interval value, calculating a second step length of the low-density sampling area based on the second sampling quantity, the rated flow and the interval value, wherein the first sampling quantity is not smaller than the second sampling quantity, and the first step length is smaller than the second step length;
uniformly setting sampling points in the high-density sampling area based on the first step length and the first sampling quantity, uniformly setting the sampling points in the low-density sampling area based on the second step length and the second sampling quantity, and determining the target flow corresponding to each sampling point;
Adjusting the valve opening of the water supply equipment to be measured based on an incremental PID control algorithm, and sequentially adjusting the current flow of the water supply equipment to be measured to each target flow;
and calculating the performance data of the water supply equipment to be measured after the current flow is stabilized at the target flow, and generating a performance curve of the water supply equipment to be measured after the performance data corresponding to all the target flow are obtained.
2. The method of claim 1, wherein the adjusting the valve opening of the water supply device under test based on the incremental PID control algorithm comprises:
setting the square of the flow difference between the current flow and the target flow as a position tracking deviation value, setting a dead zone control algorithm based on the position tracking deviation value, and adjusting the valve opening of the water supply equipment to be tested based on an incremental PID control algorithm and the dead zone control algorithm, so that the PID is not output when the position tracking deviation value is not greater than a preset adjustable parameter, and the PID is normally output when the position tracking deviation value is greater than the adjustable parameter.
3. The method according to claim 1, wherein sequentially adjusting the current flow rate of the water supply device to be measured to each of the target flow rates includes:
And sequentially adjusting the current flow of the water supply equipment to be tested into each target flow, and sequentially maintaining the current flow at the position of each target flow for a target sampling duration, wherein the target sampling duration is determined based on the test sampling point number.
4. The method of claim 3, wherein the maintaining the current flow rate sequentially before the target sample period at the location of each of the target flow rates further comprises:
inquiring the test sampling points in a preset database to obtain a target sampling time length, wherein the database stores a mapping relation between the test sampling points and the target sampling time length, and the test sampling points are in negative correlation with the target sampling time length.
5. The method of claim 1, wherein said calculating performance data of the water supply device under test comprises:
acquiring acquisition data of the water supply equipment to be detected, and calculating performance data of the water supply equipment to be detected based on the acquisition data, wherein the acquisition data comprises single acquisition flow, inlet pressure, outlet pressure, inlet flow rate, outlet flow rate, inlet pressure taking point height from a reference surface and outlet pressure taking point height from the reference surface, and the performance data comprises actual flow, total lift, water power of the water supply equipment and efficiency of the water supply equipment.
6. The method of claim 5, wherein after the acquiring the collected data of the water supply device to be measured, further comprising:
and eliminating abnormal data in the acquired data based on a digital filtering algorithm.
7. The method of claim 1, wherein the generating the performance curve of the water supply device under test comprises:
and generating a performance curve and an average energy consumption evaluation index of the water supply equipment to be tested, wherein the performance curve comprises a flow-lift curve, a flow-power curve and a flow-efficiency curve.
8. An automated performance testing apparatus for a water supply device, the apparatus comprising:
the acquisition module is used for acquiring a test instruction and determining rated flow, flow variable range and test sampling point number of the water supply equipment to be tested based on the test instruction;
the first setting module is used for setting a high-density sampling area and a low-density sampling area corresponding to the rated flow by taking the rated flow of a preset multiplying power as an interval value, wherein the interval lower limit of the high-density sampling area is the rated flow minus the interval value, the interval upper limit of the high-density sampling area is the rated flow increased by the interval value, and the low-density sampling area is an interval except the high-density sampling area in the variable flow range;
The calculation module is used for dividing the test sampling quantity into a first sampling quantity and a second sampling quantity based on a preset distribution proportion, calculating a first step length of the high-density sampling area based on the first sampling quantity, the rated flow and the interval value, calculating a second step length of the low-density sampling area based on the second sampling quantity, the rated flow and the interval value, wherein the first sampling quantity is not smaller than the second sampling quantity, and the first step length is smaller than the second step length;
the second setting module is used for uniformly setting sampling points in the high-density sampling area based on the first step length and the first sampling quantity, uniformly setting the sampling points in the low-density sampling area based on the second step length and the second sampling quantity, and determining the target flow corresponding to each sampling point;
the adjusting module is used for adjusting the valve opening of the water supply equipment to be measured based on an incremental PID control algorithm and sequentially adjusting the current flow of the water supply equipment to be measured to each target flow;
and the generating module is used for calculating the performance data of the water supply equipment to be tested after the current flow is stabilized at the target flow until the performance data corresponding to all the target flow are obtained, and then generating a performance curve of the water supply equipment to be tested.
9. An electronic device comprising a memory, a processor and a computer program stored on the memory and executable on the processor, characterized in that the processor implements the steps of the method according to any of claims 1-7 when the computer program is executed.
10. A computer readable storage medium having stored thereon a computer program having instructions stored therein, which when run on a computer or processor, cause the computer or processor to perform the steps of the method according to any of claims 1-7.
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