Thermal signal processing method and device, electronic equipment, storage medium and product

Abstract

The invention provides a thermotechnical signal processing method and device, electronic equipment, a storage medium and a product. The method comprises the following steps: acquiring a first measurement signal; in response to the fact that the quality of the first measurement signal is good, determining that the first measurement signal is a target measurement signal; in response to the fact that the quality of the first measurement signal is bad quality, the second measurement signal is determined to be a target measurement signal, and the second measurement signal is a measurement signal at the previous moment; and determining a first flow corresponding to the target measurement signal based on the target measurement signal and the first pressure difference signal.

Description

Technical Field

[0001] The present disclosure relates to the technical field of thermal signal processing, and in particular to a thermal signal processing method, device, electronic equipment, storage medium and product. Background Art

[0002] In related thermal signal processing schemes, pressure signals and temperature signals are usually used to calculate flow, and the calculated flow is used to control the system. However, when external factors are of poor quality or fluctuate greatly, the thermal liquid flow signal will also be of poor quality or fluctuate greatly, which will cause the control system to malfunction. Summary of the invention

[0003] The present disclosure provides a thermal signal processing method, device, electronic device, storage medium and product to solve the problem in the related art that due to external factors, the thermal liquid flow signal also has poor quality or large fluctuations, thereby causing malfunction of the control system.

[0004] A first aspect of the present disclosure provides a thermal signal processing method, the method comprising:

[0005] Acquiring a first measurement signal;

[0006] In response to the quality of the first measurement signal being good quality, determining the first measurement signal to be a target measurement signal;

[0007] In response to the quality of the first measurement signal being bad, determining the second measurement signal as a target measurement signal, the second measurement signal being a measurement signal at a previous moment;

[0008] Based on the target measurement signal and the first pressure difference signal, a first flow rate corresponding to the target measurement signal is determined.

[0009] In one embodiment, obtaining a first measurement signal includes:

[0010] acquiring at least one input measurement signal;

[0011] A first measurement signal is determined from the at least one input measurement signal as a function of the value of each of the at least one input measurement signal.

[0012] In one embodiment, before determining a first flow rate corresponding to the target measurement signal based on the target measurement signal and the first pressure difference signal, the method provided by the present disclosure further includes:

[0013] Determine the target measurement signal that is less than a first preset value, where the first preset value is a value corresponding to a preset multiple of a maximum signal when the unit is operating normally, and the target measurement signal includes a pressure measurement signal and a temperature measurement signal.

[0014] In one embodiment, determining a first flow rate corresponding to the target measurement signal based on the target measurement signal and the first pressure difference signal includes:

[0015] Based on the target measurement signal, determining a target density corresponding to the target measurement signal;

[0016] Based on the target density and the first differential pressure signal, a first flow rate corresponding to the target measurement signal is determined.

[0017] In one embodiment, determining a target density corresponding to the target measurement signal based on the target measurement signal includes:

[0018] Determine a smaller value between the pressure measurement signal and the preset pressure signal as a first pressure signal;

[0019] determining a temperature corresponding to the first pressure signal from a mapping relationship between the first pressure signal and the temperature;

[0020] Determine a smaller value between the temperature measurement signal and the temperature corresponding to the first pressure signal as a first temperature signal;

[0021] A target density corresponding to the first pressure signal and the first temperature signal is determined as a target density corresponding to the target measurement signal.

[0022] In one embodiment, determining a first measurement signal from the at least one input measurement signal according to the value of each of the at least one input measurement signal comprises:

[0023] According to the value of each of the input measurement signals in at least one input measurement signal, determining a switching rate corresponding to the signal value of the first measurement signal from a mapping relationship between the signal value and the switching rate;

[0024] A first measurement signal is determined from the at least one input measurement signal according to the switching rate corresponding to the signal value of the first measurement signal.

[0025] A second aspect of the present disclosure provides a thermal signal processing device, the device comprising:

[0026] An acquisition unit, configured to acquire a first measurement signal;

[0027] a first determining unit, configured to determine, in response to the quality of the first measurement signal being good quality, that the first measurement signal is a target measurement signal;

[0028] a second determining unit, configured to determine, in response to the quality of the first measurement signal being bad, that the second measurement signal is a target measurement signal, wherein the second measurement signal is a measurement signal at a previous moment;

[0029] The third determination unit is configured to determine a first flow rate corresponding to the target measurement signal based on the target measurement signal and the first pressure difference signal.

[0030] A third aspect of the present disclosure provides an electronic device, including:

[0031] At least one processor; and a memory communicatively connected to the at least one processor; wherein the memory stores instructions executable by the at least one processor, and the instructions are executed by the at least one processor so that the at least one processor can execute the method described in the embodiment of the first aspect of the present disclosure.

[0032] The fourth aspect embodiment of the present disclosure proposes a non-transitory computer-readable storage medium storing computer instructions, wherein the computer instructions are used to enable a computer to execute the method described in the first aspect embodiment of the present disclosure.

[0033] The fifth aspect embodiment of the present disclosure provides a computer program product, including a computer program, which implements the method described in the first aspect embodiment of the present disclosure when executed by a processor.

[0034] In summary, the present disclosure proposes a thermal signal processing method, which includes: acquiring a first measurement signal; in response to the quality of the first measurement signal being good quality, determining the first measurement signal to be a target measurement signal; in response to the quality of the first measurement signal being bad quality, determining the second measurement signal to be a target measurement signal, the second measurement signal being a measurement signal at a previous moment; based on the target measurement signal and a first pressure difference signal, determining a first flow corresponding to the target measurement signal.

[0035] According to the scheme provided by the present disclosure, by acquiring a first measurement signal and determining a target measurement signal according to the quality of the first measurement signal, specifically, when the quality of the first measurement signal is good, determining the first measurement signal as the target measurement signal, and when the quality of the first measurement signal is bad, determining the measurement signal at the previous moment as the target measurement signal, it is possible to avoid sudden changes or bad points in the flow signal by avoiding the transmission of values ​​with bad quality; by determining the first flow corresponding to the target measurement signal based on the target measurement signal and the first pressure difference signal, it is possible to improve the accuracy of the first flow corresponding to the target measurement signal, thereby reducing or even avoiding malfunctions of the control system.

[0036] It is to be understood that the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the present disclosure. BRIEF DESCRIPTION OF THE DRAWINGS

[0037] The drawings herein are incorporated into and constitute a part of the specification, illustrate embodiments consistent with the present disclosure, and together with the description are used to explain the principles of the present disclosure, and do not constitute improper limitations on the present disclosure.

[0038] Figure 1 A schematic diagram of a thermal signal processing method provided in an embodiment of the present disclosure;

[0039] Figure 2 A schematic flow chart of a method for obtaining a first measurement signal provided in an embodiment of the present disclosure;

[0040] Figure 3 A schematic flow chart of a method for determining a first flow rate corresponding to a target measurement signal provided in an embodiment of the present disclosure;

[0041] Figure 4 A schematic flow chart of a method for determining a target density corresponding to a target measurement signal provided in an embodiment of the present disclosure;

[0042] Figure 5 A schematic flow chart of a method for determining a first measurement signal provided in an embodiment of the present disclosure;

[0043] Figure 6 A flow chart of a thermal signal processing method provided for an application example of the present disclosure;

[0044] Figure 7 A schematic diagram of the structure of a thermal signal processing device provided in an embodiment of the present disclosure;

[0045] Figure 8 A schematic diagram of the hardware structure of an electronic device provided in an embodiment of the present disclosure. DETAILED DESCRIPTION

[0046] Embodiments of the present disclosure are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present disclosure, and should not be construed as limiting the present disclosure.

[0047] Thermal signals are signals that convert physical parameters in power plants into 4 to 20 mA signals through measuring instruments and then are sent to the Distributed Control System (DCS), and can be displayed intuitively on the DCS. Thermal measurement not only involves the measurement of basic thermal parameters such as temperature and pressure, but also includes the measurement of parameters such as flow, material level, speed, vibration, displacement and stress. These measurements are the main means of online monitoring of process status and inspection of equipment conditions, and the information and data provided are the basis for control operations and equipment maintenance. Improving the level of measurement technology and signal processing is an important measure to improve the production management of power plants.

[0048] Thermal fluid flow signals usually use standard throttling elements to directly measure the flow, such as standard orifice plates, standard nozzles, venturi tubes and other devices. These devices can be directly installed in the fluid pipeline to calculate the flow by measuring the pressure difference of the fluid. In the DCS calculation process, pressure, temperature and other signals are required to calculate them. However, in actual production, the signal may be interfered or malfunctioned due to environmental or equipment influences. For some important thermal flow signals, secondary processing is required to meet the requirements of safe operation of the unit.

[0049] In related thermal signal processing schemes, pressure signals and temperature signals are usually used to calculate flow, and the calculated flow is used to control the system. However, when external factors are of poor quality or fluctuate greatly, the thermal liquid flow signal will also be of poor quality or fluctuate greatly, which will cause the control system to malfunction.

[0050] In order to solve the defects in the related art, the present invention obtains a first measurement signal and determines a target measurement signal according to the quality of the first measurement signal. Specifically, when the quality of the first measurement signal is good, the first measurement signal is determined to be the target measurement signal, and when the quality of the first measurement signal is bad, the measurement signal at the previous moment is determined to be the target measurement signal. By avoiding the transmission of values ​​with bad quality, sudden changes or bad points in the flow signal can be avoided; by determining the first flow corresponding to the target measurement signal based on the target measurement signal and the first pressure difference signal, the accuracy of the first flow corresponding to the target measurement signal can be improved, thereby reducing or even avoiding malfunctions of the control system.

[0051] A thermal signal processing method provided in an embodiment of the present disclosure can be applied to an industrial control system. The executor of the method can be a distributed control system, a programmable logic controller, an industrial computer, a dedicated flow meter, a dedicated signal processing module or an intelligent terminal device, etc.

[0052] The present disclosure is further described in detail below with reference to the accompanying drawings and specific embodiments.

[0053] like Figure 1 As shown, Figure 1 The schematic diagram of the process flow of the thermal signal processing method provided by the embodiment of the present disclosure. The thermal signal processing method provided by the embodiment of the present disclosure comprises the following steps:

[0054] Step 101, obtaining a first measurement signal;

[0055] In one embodiment, the first measurement signal refers to a measurement signal at a current moment.

[0056] In one embodiment, the first measurement signal includes a pressure measurement signal at a current moment and a temperature measurement signal at a current moment.

[0057] In one embodiment, the first measurement signal can be converted by a measuring instrument and then sent to a DCS for intuitive display.

[0058] Step 102, in response to the quality of the first measurement signal being good quality, determining the first measurement signal as a target measurement signal;

[0059] In one embodiment, the quality of the first measurement signal may be determined by using a bad quality determination module provided in the system.

[0060] In one embodiment, good quality refers to a state in which the measuring point is normal and can display a normal value.

[0061] In one embodiment, in response to the quality of the first measurement signal being good, the measurement signal at the current moment is determined to be the target measurement signal.

[0062] Step 103, in response to the quality of the first measurement signal being bad, determining that the second measurement signal is a target measurement signal, the second measurement signal being a measurement signal at a previous moment;

[0063] In one embodiment, bad quality refers to a state where the measuring point is abnormal and cannot display normal values. For example, the measuring range of the liquid level measurement signal is 0 to 10 meters. If the line of the measuring point is disconnected or there is interference such as a magnetic field, the liquid level display will be abnormal.

[0064] In one embodiment, bad quality may include communication abnormalities, overflow, rapid rate changes, and the like.

[0065] In one embodiment, when the first measurement signal fluctuates greatly due to external factors, it will cause a large fluctuation in the flow signal, causing system malfunction. Specifically, the water tank liquid level measurement range is 0 to 10 meters, and under normal circumstances the liquid level is around 4 to 5 meters. If it fluctuates to 8 meters in a certain period of time and then quickly changes to 4 meters, but the system is normal and there is no large amount of water added or drained, it can be considered that it is affected by external factors. The large fluctuation will cause the flow signal to fluctuate greatly, causing the system to malfunction.

[0066] In one embodiment, a delay of 1 second is performed when the first measurement signal is converted from bad quality to good quality to prevent a sudden change in the signal at the moment of signal recovery.

[0067] Step 104: Determine a first flow rate corresponding to the target measurement signal based on the target measurement signal and the first pressure difference signal.

[0068] In one embodiment, since the target measurement signal is a measurement signal determined according to the quality of the first measurement signal and avoiding the influence of the bad point measurement signal, by determining the first flow corresponding to the target measurement signal based on the target measurement signal and the first pressure difference signal, the malfunction of the control system can be reduced or even avoided. Specifically, when the control system is a regulation system, proportional-integral-derivative control (PID) regulation is taken as an example, such as pump control flow, different pump outputs correspond to different flow rates, and the flow value is set under normal circumstances. The regulation system automatically controls the output of the pump so that the measured flow value matches the set value. If the measured flow value is inaccurate, it will affect the control of the pump. At this time, a more accurate first flow can ensure the precise control of the regulation system; when the control system is a protection system, it generally refers to interlocking and overrunning. If the flow rate is lower than a certain value, the unit will be shut down. If the flow signal is disturbed and lower than this value, it will cause the unit to shut down. At this time, a more accurate first flow can ensure the precise control of the protection system to start and stop a certain device.

[0069] In one embodiment, if Figure 2 As shown, obtaining a first measurement signal includes:

[0070] Step 201, collecting at least one input measurement signal;

[0071] In one embodiment, the input measurement signal comprises at least an input pressure measurement signal and an input temperature measurement signal.

[0072] In one embodiment, at least one input pressure measurement signal may be acquired through a pressure sensor, and at least one input temperature measurement signal may be acquired through a temperature sensor.

[0073] In one embodiment, there may be multiple pressure sensors and temperature sensors, that is, multiple sensors may be used to collect input measurement signals simultaneously. The present disclosure does not limit the number of sensors for collecting input measurement signals.

[0074] Step 202: determining a first measurement signal from the at least one input measurement signal according to the value of each of the at least one input measurement signal.

[0075] In one embodiment, taking at least one input measurement signal as three input measurement signals as an example, according to the value of each of the three input measurement signals, the input measurement signal corresponding to the minimum value of the three input measurement signals can be determined as the first measurement signal, the input measurement signal corresponding to the maximum value of the three input measurement signals can be determined as the first measurement signal, the input measurement signal corresponding to the middle value of the three input measurement signals can be determined as the first measurement signal, and the input measurement signal corresponding to the average value of the three input measurement signals can be determined as the first measurement signal.

[0076] In one embodiment, by determining the first measurement signal from the at least one input measurement signal based on the value of each of the at least one input measurement signal, interference with the thermal signal processing logic caused by an abnormality in one of the signals can be avoided to a certain extent.

[0077] In one embodiment, before determining a first flow rate corresponding to the target measurement signal based on the target measurement signal and the first pressure difference signal, the thermal signal processing method further includes:

[0078] Determine the target measurement signal that is less than a first preset value, where the first preset value is a value corresponding to a preset multiple of a maximum signal when the unit is operating normally, and the target measurement signal includes a pressure measurement signal and a temperature measurement signal.

[0079] In one embodiment, the maximum signal when the unit is operating normally may be obtained from historical signals when the unit is operating normally.

[0080] In one embodiment, the maximum signal when the unit is operating normally includes a maximum pressure signal when the unit is operating normally and a maximum temperature signal when the unit is operating normally.

[0081] In one embodiment, the value corresponding to the preset multiple of the maximum signal when the unit is working normally refers to a value that can prevent false operation caused by sudden signal changes. The specific value of the preset multiple is not limited in the present disclosure. Preferably, the preset multiple can be 1.2 times. By selecting the maximum signal multiplied by 120% in normal operation of the unit as the upper limit value, the settings of different signals can be met.

[0082] In one embodiment, before determining the first flow corresponding to the target measurement signal based on the target measurement signal and the first pressure difference signal, by determining that the target measurement signal is less than a first preset value, the target measurement signal can be kept within a normal range to prevent false operation caused by sudden signal changes.

[0083] In one embodiment, if Figure 3 As shown, based on the target measurement signal and the first pressure difference signal, determining a first flow corresponding to the target measurement signal includes:

[0084] Step 301, based on the target measurement signal, determining a target density corresponding to the target measurement signal;

[0085] In one embodiment, based on the target measurement signal, a target density corresponding to the target measurement signal may be determined according to a thermal parameter calculation module.

[0086] In one embodiment, since the target measurement signal is determined based on the quality of the first measurement signal, the accuracy of the acquired target density can be improved by determining the target density corresponding to the target measurement signal based on the target measurement signal.

[0087] Step 302: Determine a first flow rate corresponding to the target measurement signal based on the target density and the first pressure difference signal.

[0088] In one embodiment, the first differential pressure signal is used to indicate the pressure difference of the thermal signal at different positions.

[0089] In one embodiment, based on the target density and the first differential pressure signal, a mathematical expression for determining a first flow rate corresponding to the target measurement signal is expressed as follows:

[0090] Q = cd*A*sqrt(2*dp / ρ);

[0091] Wherein, Q represents the first flow corresponding to the target measurement signal, cd represents the flow coefficient of the fluid pipeline, A represents the cross-sectional area of ​​the fluid pipeline, dp represents the first pressure difference signal, and ρ represents the target density.

[0092] In one embodiment, by determining the first flow corresponding to the target measurement signal based on the target density and the first pressure difference signal, the accuracy of the first flow corresponding to the target measurement signal can be further improved by improving the accuracy of the target density, thereby reducing or even avoiding malfunction of the control system.

[0093] In one embodiment, if Figure 4 As shown, based on the target measurement signal, determining the target density corresponding to the target measurement signal includes:

[0094] Step 401, determining the smaller value between the pressure measurement signal and the preset pressure signal as the first pressure signal;

[0095] In one embodiment, the preset pressure signal refers to a critical pressure signal of water, and its value is 22.

[0096] In one embodiment, determining the smaller value between the pressure measurement signal and the preset pressure signal as the first pressure signal means comparing the pressure measurement signal with 22 and selecting the pressure signal with the smaller value as the first pressure signal.

[0097] In one embodiment, by determining the smaller value between the pressure measurement signal and the preset pressure signal as the first pressure signal, the pressure signal can be controlled within a normal range to ensure the accuracy of the first flow rate.

[0098] Step 402, determining a temperature corresponding to the first pressure signal from a mapping relationship between the first pressure signal and the temperature;

[0099] In one embodiment, the temperature corresponding to the first pressure signal refers to the saturation temperature under the first pressure signal.

[0100] In one embodiment, the mapping relationship between the first pressure signal and the temperature may be embodied in the form of a mapping relationship table, in the form of a mapping relationship curve, or in the form of a mapping relationship array.

[0101] Step 403, determining a smaller value between the temperature measurement signal and the temperature corresponding to the first pressure signal as a first temperature signal;

[0102] In one embodiment, the temperature measurement signal is compared with the saturation temperature under the first pressure signal, and the temperature signal can be controlled within a normal range by determining the smaller value of the two temperature signals as the first temperature signal.

[0103] Step 404: Determine a target density corresponding to the first pressure signal and the first temperature signal as a target density corresponding to the target measurement signal.

[0104] In one embodiment, since the first pressure signal and the first temperature signal are both processed signals, by determining the target density corresponding to the first pressure signal and the first temperature signal as the target density corresponding to the target measurement signal, it can be ensured that the flow signal calculated based on the density is within a normal range and does not affect the normal operation of the unit.

[0105] In one embodiment, if Figure 5As shown, determining a first measurement signal from at least one input measurement signal according to the value of each of the input measurement signals in the at least one input measurement signal comprises:

[0106] Step 501, according to the value of each input measurement signal in at least one input measurement signal, determine a switching rate corresponding to the signal value of the first measurement signal from a mapping relationship between the signal value and the switching rate;

[0107] In one embodiment, the value of the input measurement signal is used to indicate the strength of the measurement signal.

[0108] In one embodiment, if the values ​​of the input measurement signals differ greatly, switching may easily cause a sudden change in the measurement signal. Therefore, it is necessary to determine the switching speeds corresponding to the first measurement signals of different sizes to prevent a sudden change in the signal.

[0109] In one embodiment, the switching rate corresponding to the signal value of the first measurement signal may be determined from a mapping relationship table between the signal value and the switching rate.

[0110] In one embodiment, the switching rate corresponding to the signal value of the first measurement signal may also be determined from a mapping relationship curve between the signal value and the switching rate.

[0111] In one embodiment, the switching rate corresponding to the signal value of the first measurement signal may also be determined from an array of mapping relationships between the signal value and the switching rate.

[0112] Step 502: Determine a first measurement signal from the at least one input measurement signal according to the switching rate corresponding to the signal value of the first measurement signal.

[0113] In one embodiment, by determining the first measurement signal from the at least one input measurement signal according to the switching rate corresponding to the signal value of the first measurement signal, the change in the switching of the measurement signal can be controlled within a reasonable range, thereby preventing sudden changes in the signal, such as determining that when the signal value of the first measurement signal is 0 to 50, the corresponding switching rate is 5 / min, when the signal value of the first measurement signal is 50 to 200, the corresponding switching rate is 10 / min, when the signal value of the first measurement signal is 200 to 300, the corresponding switching rate is 20 / min, and when the signal value of the first measurement signal is above 300, the corresponding switching rate is 50 / min. The present disclosure does not limit the specific mapping relationship between the signal value and the switching rate.

[0114] In one embodiment, the hysteresis time constant can be set to 3 seconds and 5 seconds to adapt to the switching rates of different input measurement signals.

[0115] In summary, the solution provided by the present disclosure is:

[0116] First, by acquiring a first measurement signal and determining a target measurement signal according to the quality of the first measurement signal, specifically, when the quality of the first measurement signal is good, determining the first measurement signal as the target measurement signal, and when the quality of the first measurement signal is bad, determining the measurement signal at the previous moment as the target measurement signal, it is possible to avoid sudden changes or bad points in the flow signal by avoiding the transmission of values ​​with bad quality; by determining the first flow corresponding to the target measurement signal based on the target measurement signal and the first pressure difference signal, it is possible to improve the accuracy of the first flow corresponding to the target measurement signal, thereby reducing or even avoiding malfunctions of the control system.

[0117] Secondly, by determining the first measurement signal from the at least one input measurement signal according to the value of each of the at least one input measurement signal, interference with the thermal signal processing logic caused by an abnormality in one of the signals can be avoided to a certain extent.

[0118] Thirdly, by determining the target measurement signal to be smaller than the first preset value, the target measurement signal can be kept within a normal range, thereby preventing malfunction caused by sudden signal changes.

[0119] Again, by determining the first flow corresponding to the target measurement signal based on the target density and the first pressure difference signal, the accuracy of the first flow corresponding to the target measurement signal can be further improved by improving the accuracy of the target density, thereby reducing or even avoiding malfunction of the control system.

[0120] Again, since the first pressure signal and the first temperature signal are both processed signals, by determining the target density corresponding to the first pressure signal and the first temperature signal as the target density corresponding to the target measurement signal, it can be ensured that the flow signal calculated based on the density is within the normal range and does not affect the normal operation of the unit.

[0121] Thirdly, by determining the first measurement signal from the at least one input measurement signal according to the switching rate corresponding to the signal value of the first measurement signal, the switching change of the measurement signal can be controlled within a reasonable range, thereby preventing sudden changes in the signal.

[0122] The thermal signal processing method provided by the present disclosure is further described below with an application example:

[0123] like Figure 6 As shown, Figure 6 A flow chart of a thermal signal processing method provided by an application example of the present disclosure. The thermal signal processing method provided by an application example of the present disclosure comprises the following steps:

[0124] Step 601, collecting at least one input measurement signal;

[0125] Step 602: according to the value of each input measurement signal in at least one input measurement signal, determine a switching rate corresponding to the signal value of the first measurement signal from a mapping relationship between the signal value and the switching rate;

[0126] Step 603, determining a first measurement signal from the at least one input measurement signal according to the switching rate corresponding to the signal value of the first measurement signal;

[0127] Step 604: in response to the quality of the first measurement signal being good, determining the first measurement signal as a target measurement signal;

[0128] Step 605: in response to the quality of the first measurement signal being bad, determining that the second measurement signal is a target measurement signal, wherein the second measurement signal is a measurement signal at a previous moment;

[0129] Step 606, determining the target measurement signal that is less than a first preset value, the first preset value being a value corresponding to a preset multiple of a maximum signal when the unit is operating normally, the target measurement signal including a pressure measurement signal and a temperature measurement signal;

[0130] Step 607, determining the smaller value between the pressure measurement signal and the preset pressure signal as the first pressure signal;

[0131] Step 608, determining a temperature corresponding to the first pressure signal from a mapping relationship between the first pressure signal and the temperature;

[0132] Step 609, determining the smaller value between the temperature measurement signal and the temperature corresponding to the first pressure signal as the first temperature signal;

[0133] Step 610, determining a target density corresponding to the first pressure signal and the first temperature signal as a target density corresponding to the target measurement signal;

[0134] Step 611: Determine a first flow rate corresponding to the target measurement signal based on the target density and the first pressure difference signal.

[0135] In order to implement the thermal signal processing method provided by the embodiment of the present disclosure, the embodiment of the present disclosure also provides a thermal signal processing device, such as Figure 7 shown. Figure 7 This is a schematic diagram of the structure of a thermal signal processing device provided in an embodiment of the present disclosure. The thermal signal processing device 700 includes:

[0136] An acquisition unit 701 is used to acquire a first measurement signal;

[0137] A first determining unit 702, configured to determine, in response to the quality of the first measurement signal being good quality, that the first measurement signal is a target measurement signal;

[0138] A second determination unit 703, configured to determine, in response to the quality of the first measurement signal being bad, that the second measurement signal is a target measurement signal, where the second measurement signal is a measurement signal at a previous moment;

[0139] The third determination unit 704 is configured to determine a first flow rate corresponding to the target measurement signal based on the target measurement signal and the first pressure difference signal.

[0140] In one embodiment, the acquisition unit 701 is specifically configured to:

[0141] acquiring at least one input measurement signal;

[0142] A first measurement signal is determined from the at least one input measurement signal as a function of the value of each of the at least one input measurement signal.

[0143] In one embodiment, the thermal signal processing device 700 further includes a fourth determining unit, which is used to:

[0144] Determine the target measurement signal that is less than a first preset value, where the first preset value is a value corresponding to a preset multiple of a maximum signal when the unit is operating normally, and the target measurement signal includes a pressure measurement signal and a temperature measurement signal.

[0145] In one embodiment, the third determining unit 704 is specifically configured to:

[0146] Based on the target measurement signal, determining a target density corresponding to the target measurement signal;

[0147] Based on the target density and the first differential pressure signal, a first flow rate corresponding to the target measurement signal is determined.

[0148] In one embodiment, the third determining unit 704 is specifically configured to:

[0149] Determine a smaller value between the pressure measurement signal and the preset pressure signal as a first pressure signal;

[0150] determining a temperature corresponding to the first pressure signal from a mapping relationship between the first pressure signal and the temperature;

[0151] Determine a smaller value between the temperature measurement signal and the temperature corresponding to the first pressure signal as a first temperature signal;

[0152] A target density corresponding to the first pressure signal and the first temperature signal is determined as a target density corresponding to the target measurement signal.

[0153] In one embodiment, the acquisition unit 701 is specifically configured to:

[0154] According to the value of each of the input measurement signals in at least one input measurement signal, determining a switching rate corresponding to the signal value of the first measurement signal from a mapping relationship between the signal value and the switching rate;

[0155] A first measurement signal is determined from the at least one input measurement signal according to the switching rate corresponding to the signal value of the first measurement signal.

[0156] It should be noted that: the thermal signal processing device provided in the above embodiment only uses the division of the above program modules as an example to illustrate when performing thermal signal processing. In actual applications, the above processing can be assigned to different program modules as needed, that is, the internal structure of the thermal signal processing device is divided into different program modules to complete all or part of the processing described above. In addition, the thermal signal processing device provided in the above embodiment and the thermal signal processing method embodiment provided in the embodiment of the present disclosure belong to the same concept. The specific implementation process is detailed in the method embodiment and will not be repeated here.

[0157] Figure 8 A schematic diagram of the hardware structure of an electronic device provided in an embodiment of the present disclosure is shown in FIG. Figure 8 As shown, the electronic device 800 includes at least one processor 802; and a memory 801 that is communicatively connected to the at least one processor 802; wherein the memory 801 stores instructions that can be executed by the at least one processor 802, and the instructions are executed by the at least one processor 802 to implement the steps of the thermal signal processing method described in the embodiment of the present disclosure.

[0158] Optionally, the electronic device may specifically be a thermal signal processing device in an embodiment of the present application, and the electronic device may implement the corresponding processes implemented by the thermal signal processing device in each method in the embodiment of the present application, which will not be described in detail here for the sake of brevity.

[0159] It is understood that the electronic device also includes a communication interface 803. The various components in the electronic device are coupled together through a bus system 804. It is understood that the bus system 804 is used to realize the connection and communication between these components. In addition to the data bus, the bus system 804 also includes a power bus, a control bus, and a status signal bus. However, for the sake of clarity, Figure 8 Various buses are labeled as bus system 804 .

[0160] It can be understood that the memory 801 can be a volatile memory or a non-volatile memory, and can also include both volatile and non-volatile memories. Among them, the non-volatile memory can be a read-only memory (ROM), a programmable read-only memory (PROM), an erasable programmable read-only memory (EPROM), an electrically erasable programmable read-only memory (EEPROM), a magnetic random access memory (FRAM), a ferromagnetic random access memory, a flash memory, a magnetic surface memory, an optical disc, or a compact disc read-only memory (CD-ROM); the magnetic surface memory can be a disk memory or a tape memory. The volatile memory can be a random access memory (RAM), which is used as an external cache. By way of example and not limitation, many forms of RAM are available, such as static random access memory (SRAM), synchronous static random access memory (SSRAM), dynamic random access memory (DRAM), synchronous dynamic random access memory (SDRAM), double data rate synchronous dynamic random access memory (DDRSDRAM), enhanced synchronous dynamic random access memory (ESDRAM), synchronous link dynamic random access memory (SLDRAM, SyncLink Dynamic Random Access Memory), and direct RAMbus random access memory (DRRAM, Direct Rambus Random Access Memory).The memory 801 described in the embodiment of the present invention is intended to include but is not limited to these and any other suitable types of memories.

[0161] The method disclosed in the above embodiment of the present disclosure can be applied to the processor 802, or implemented by the processor 802. The processor 802 may be an integrated circuit chip with signal processing capabilities. In the implementation process, each step of the above method can be completed by the hardware integrated logic circuit in the processor 802 or the instruction in the form of software. The above processor 802 may be a general-purpose processor, a DSP, or other programmable logic devices, discrete gates or transistor logic devices, discrete hardware components, etc. The processor 802 can implement or execute the methods, steps and logic block diagrams disclosed in the embodiments of the present invention. The general-purpose processor may be a microprocessor or any conventional processor, etc. In combination with the steps of the method disclosed in the embodiment of the present invention, it can be directly embodied as a hardware decoding processor to execute, or it can be executed by a combination of hardware and software modules in the decoding processor. The software module can be located in a storage medium, which is located in the memory 801, and the processor 802 reads the information in the memory 801 and completes the steps of the above method in combination with its hardware.

[0162] In an exemplary embodiment, the electronic device may be implemented by one or more application specific integrated circuits (ASICs), DSPs, programmable logic devices (PLDs), complex programmable logic devices (CPLDs), FPGAs, general purpose processors, controllers, MCUs, microprocessors, or other electronic components to execute the aforementioned method.

[0163] The embodiment of the present disclosure further provides a non-transitory computer-readable storage medium storing computer instructions, wherein the computer instructions are used to enable the computer to implement the steps of the thermal signal processing method described in the embodiment of the present disclosure when executed.

[0164] The embodiment of the present disclosure also provides a computer program product, including a computer program, which implements the steps of the thermal signal processing method provided in the embodiment of the present invention when executed by a processor.

[0165] Optionally, the computer-readable storage medium can be applied to the thermal signal processing device in the embodiments of the present application, and the computer instructions enable the computer to execute the corresponding processes implemented by the thermal signal processing device in the various methods of the embodiments of the present application. For the sake of brevity, they will not be repeated here.

[0166] In the several embodiments provided in the present application, it should be understood that the disclosed devices and methods can be implemented in other ways. The device embodiments described above are only schematic. For example, the division of the units is only a logical function division. There may be other division methods in actual implementation, such as: multiple units or components can be combined, or can be integrated into another system, or some features can be ignored or not executed. In addition, the coupling, direct coupling, or communication connection between the components shown or discussed can be through some interfaces, and the indirect coupling or communication connection of the devices or units can be electrical, mechanical or other forms.

[0167] The units described above as separate components may or may not be physically separated, and the components displayed as units may or may not be physical units, that is, they may be located in one place or distributed on multiple network units; some or all of the units may be selected according to actual needs to achieve the purpose of the present embodiment.

[0168] In addition, all functional units in the embodiments of the present invention may be integrated into one processing unit, or each unit may be separately used as a unit, or two or more units may be integrated into one unit; the above-mentioned integrated units may be implemented in the form of hardware or in the form of hardware plus software functional units.

[0169] A person of ordinary skill in the art can understand that: all or part of the steps of implementing the above-mentioned method embodiment can be completed by hardware related to program instructions, and the aforementioned program can be stored in a computer-readable storage medium, which, when executed, executes the steps of the above-mentioned method embodiment; and the aforementioned storage medium includes: various media that can store program codes, such as mobile storage devices, ROM, RAM, disks or optical disks.

[0170] Alternatively, if the above-mentioned integrated unit of the present invention is implemented in the form of a software function module and sold or used as an independent product, it can also be stored in a computer-readable storage medium. Based on this understanding, the technical solution of the embodiment of the present invention can be essentially or partly reflected in the form of a software product that contributes to the prior art. The computer software product is stored in a storage medium and includes several instructions for a computer device (which can be a personal computer, a server, or a network device, etc.) to execute all or part of the methods described in each embodiment of the present invention. The aforementioned storage medium includes: various media that can store program codes, such as mobile storage devices, ROM, RAM, magnetic disks or optical disks.

[0171] The above is only a specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art who is familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed by the present invention, which should be included in the protection scope of the present invention. Therefore, the protection scope of the present invention should be based on the protection scope of the claims.

Claims

1. A thermal signal processing method, characterized in that: include: Acquiring a first measurement signal; In response to the quality of the first measurement signal being good quality, determining the first measurement signal to be a target measurement signal; In response to the quality of the first measurement signal being bad, determining the second measurement signal as a target measurement signal, the second measurement signal being a measurement signal at a previous moment; Based on the target measurement signal and the first pressure difference signal, a first flow rate corresponding to the target measurement signal is determined.

2. The method according to claim 1, characterized in that The obtaining of the first measurement signal comprises: acquiring at least one input measurement signal; A first measurement signal is determined from the at least one input measurement signal as a function of the value of each of the at least one input measurement signal.

3. The method according to claim 1, characterized in that: Before determining a first flow rate corresponding to the target measurement signal based on the target measurement signal and the first pressure difference signal, the method further comprises: Determine the target measurement signal that is less than a first preset value, where the first preset value is a value corresponding to a preset multiple of a maximum signal when the unit is operating normally, and the target measurement signal includes a pressure measurement signal and a temperature measurement signal.

4. The method according to claim 1, characterized in that: The step of determining a first flow rate corresponding to the target measurement signal based on the target measurement signal and the first pressure difference signal includes: Based on the target measurement signal, determining a target density corresponding to the target measurement signal; A first flow rate corresponding to the target measurement signal is determined based on the target density and the first differential pressure signal.

5. The method according to claim 4, characterized in that The determining, based on the target measurement signal, a target density corresponding to the target measurement signal comprises: Determine a smaller value between the pressure measurement signal and the preset pressure signal as a first pressure signal; determining a temperature corresponding to the first pressure signal from a mapping relationship between the first pressure signal and the temperature; Determine a smaller value between the temperature measurement signal and the temperature corresponding to the first pressure signal as a first temperature signal; A target density corresponding to the first pressure signal and the first temperature signal is determined as a target density corresponding to the target measurement signal.

6. The method according to claim 2, characterized in that Determining the first measurement signal from the at least one input measurement signal according to the value of each of the at least one input measurement signal comprises: According to the value of each of the input measurement signals in at least one input measurement signal, determining a switching rate corresponding to the signal value of the first measurement signal from a mapping relationship between the signal value and the switching rate; A first measurement signal is determined from the at least one input measurement signal according to the switching rate corresponding to the signal value of the first measurement signal.

7. A thermal signal processing device, characterized in that: include: An acquisition unit, configured to acquire a first measurement signal; a first determining unit, configured to determine, in response to the quality of the first measurement signal being good quality, that the first measurement signal is a target measurement signal; a second determining unit, configured to determine, in response to the quality of the first measurement signal being bad, that the second measurement signal is a target measurement signal, wherein the second measurement signal is a measurement signal at a previous moment; The third determination unit is configured to determine a first flow rate corresponding to the target measurement signal based on the target measurement signal and the first pressure difference signal.

8. An electronic device, characterized in that: include: at least one processor; as well as a memory communicatively connected to the at least one processor; wherein, The memory stores instructions that can be executed by the at least one processor, and the instructions are executed by the at least one processor to enable the at least one processor to perform the method according to any one of claims 1 to 6.

9. A non-transitory computer-readable storage medium storing computer instructions, characterized in that: The computer instructions are used to cause the computer to execute the method according to any one of claims 1 to 6.

10. A computer program product, comprising a computer program, wherein the computer program implements the method according to any one of claims 1 to 6 when executed by a processor.

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