Method, device, equipment, medium and product for regulating formic acid concentration in confined space

Abstract

The present application discloses a method, device, equipment, medium and product for adjusting the concentration of formic acid in a confined space, and relates to the field of gas concentration monitoring and adjustment. The method comprises: obtaining a measurement signal detected by a formic acid concentration detection device in a confined space; performing digital-to-analog conversion and filtering on the measurement signal to obtain a digital measurement value; calibrating the digital measurement value based on a calibration curve to obtain a formic acid concentration value in the confined space; comparing the formic acid concentration value with the current process standard threshold, and adjusting the formic acid concentration in the confined space based on the comparison result. The present application can accurately adjust the formic acid concentration in a confined space, and can effectively improve production efficiency and welding quality.

Description

Technical Field

[0001] The present application relates to the field of gas concentration monitoring and regulation, and in particular to a method, device, equipment, medium and product for regulating formic acid concentration in a confined space. Background Art

[0002] In the welding process of semiconductor technology, inert gases such as nitrogen are generally used as carriers to deliver formic acid into the process chamber to complete the welding reduction process. In this process, due to the large loss of formic acid in the pipeline and valve, and when the mixed gas of nitrogen and formic acid enters the process chamber, the concentration of formic acid entering the process chamber cannot be accurately measured by the flow meter, and thus it is impossible to form a standard process value to match the welding process of different types of products, resulting in poor welding quality.

[0003] Therefore, there is an urgent need for a method that can accurately adjust the formic acid concentration in the process chamber to improve production efficiency and welding quality. Summary of the invention

[0004] The purpose of this application is to provide a method, device, equipment, medium and product for regulating the formic acid concentration in a confined space, which can accurately adjust the formic acid concentration in a confined space and effectively improve production efficiency and welding quality.

[0005] To achieve the above objectives, this application provides the following solutions:

[0006] In a first aspect, the present application provides a method for adjusting the formic acid concentration in a confined space, comprising: obtaining a measurement signal detected by a formic acid concentration detection device in a confined space; performing digital-to-analog conversion and filtering on the measurement signal to obtain a digital measurement value; calibrating the digital measurement value based on a calibration curve to obtain a formic acid concentration value in the confined space; comparing the formic acid concentration value with a current process standard threshold, and adjusting the formic acid concentration in the confined space based on the comparison result.

[0007] Optionally, the formic acid concentration detection device includes a first detection device arranged at the upper part of the confined space and a second detection device arranged at the lower part of the confined space; the obtaining of the measurement signal detected by the formic acid concentration detection device in the confined space includes: obtaining the first measurement signal detected by the first detection device; obtaining the second measurement signal detected by the second detection device; the digital-to-analog conversion and filtering processing of the measurement signal to obtain a digital measurement value includes: respectively performing digital-to-analog conversion and filtering processing on the first measurement signal and the second measurement signal to obtain a first digital measurement value and a second digital measurement value; weighted processing on the first digital measurement value and the second digital measurement to obtain the digital measurement value.

[0008] Optionally, calibrating the digital measurement value based on the calibration curve to obtain the formic acid concentration value in the confined space includes: gradually pressurizing the gas in the confined space, recording the standard formic acid concentration value corresponding to each pressurization point, and drawing the calibration curve based on the standard formic acid concentration value corresponding to each pressurization point; the standard formic acid concentration value is a measurement value obtained by the formic acid concentration detection device after zeroing; comparing the calibration curve with an ideal curve to obtain a measurement error of the formic acid concentration detection device; and performing measurement error compensation on the digital measurement value to obtain the formic acid concentration value in the confined space.

[0009] Optionally, the formic acid concentration value is compared with the current process standard threshold, and the formic acid concentration in the confined space is adjusted based on the comparison result, including: obtaining the current process standard threshold, the current process standard threshold is a pre-set formic acid threshold or a formic acid threshold input by an operator through a control display panel according to the formic acid concentration in the current confined space; comparing the formic acid concentration value with the current process standard threshold, if the formic acid concentration value is greater than or less than the current process standard threshold, controlling the opening of a pipeline valve connected to the confined space.

[0010] Optionally, the method also includes: sending the comparison result to the control display panel so that the control display panel displays various parameters in the confined space, the various parameters including pressure parameters, formic acid concentration parameters and temperature parameters; obtaining adjustment parameters input by the control display panel, the adjustment parameters are numerical values ​​input by the operator through the control display panel for adjusting various parameters in the current confined space; the adjustment parameters include pressure adjustment parameters, formic acid concentration adjustment parameters and temperature adjustment parameters; based on the adjustment parameters, the opening of the pipeline valve connected to the confined space is controlled so that the pressure, formic acid concentration and temperature in the confined space meet the current process standards.

[0011] Optionally, the method also includes: when the formic acid concentration value is greater than or less than the current process standard threshold, sending an alarm message to a control display panel so that the control display panel displays the alarm message; and / or, when the formic acid concentration value is greater than or less than the current process standard threshold, controlling the alarm light to turn on so that the alarm light emits an audible and visual alarm.

[0012] In a second aspect, the present application provides a formic acid concentration regulating device in a confined space, comprising:

[0013] A signal acquisition module, used to acquire a measurement signal detected by a formic acid concentration detection device in a confined space;

[0014] A signal processing module, used for performing digital-to-analog conversion and filtering on the measurement signal to obtain a digital measurement value;

[0015] A signal calibration module, used to calibrate the digital measurement value based on a calibration curve to obtain a formic acid concentration value in the confined space;

[0016] A comparison and adjustment module is used to compare the formic acid concentration value with the current process standard threshold value, and adjust the formic acid concentration in the confined space based on the comparison result.

[0017] In a third aspect, the present application provides a computer device, comprising: a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein the processor executes the computer program to implement the steps of any of the above-described methods for adjusting the concentration of formic acid in a confined space.

[0018] In a fourth aspect, the present application provides a computer-readable storage medium having a computer program stored thereon, which, when executed by a processor, implements the steps of any of the above-described methods for adjusting the concentration of formic acid in a confined space.

[0019] In a fifth aspect, the present application provides a computer program product, including a computer program, which, when executed by a processor, implements the steps of any of the above-mentioned methods for adjusting the formic acid concentration in a confined space.

[0020] According to the specific embodiments provided in this application, this application discloses the following technical effects:

[0021] The present application provides a method, device, equipment, medium and product for regulating formic acid concentration in a confined space. A digital measurement value is obtained by performing digital-to-analog conversion and filtering on a measurement signal detected by a formic acid concentration detection device. The formic acid concentration value in the confined space can be obtained more accurately by calibrating the digital measurement value. The formic acid concentration in the confined space is regulated by comparing the formic acid concentration value with the current process standard threshold value, so that the formic acid concentration in the confined space meets the current welding process standard, thereby achieving matching of welding process standards for different types of products, and effectively improving production efficiency and welding quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0023] Figure 1A schematic flow chart of a method for adjusting formic acid concentration in a confined space provided in one embodiment of the present application;

[0024] Figure 2 A schematic diagram of functional modules of a formic acid concentration regulating device in a confined space provided in one embodiment of the present application;

[0025] Figure 3 A schematic diagram of the structure of a computer device provided in one embodiment of the present application. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0027] In order to make the above-mentioned objects, features and advantages of the present application more obvious and easy to understand, the present application is further described in detail below with reference to the accompanying drawings and specific implementation methods.

[0028] In the solution provided in the embodiments of this specification, a digital measurement value is obtained by performing digital-to-analog conversion and filtering on the measurement signal, and the digital measurement value is calibrated to improve the accuracy of the formic acid concentration value; on the premise of ensuring the accuracy of the formic acid concentration value, the formic acid concentration in the confined space is adjusted to achieve matching of welding process standards for different types of products, thereby effectively improving production efficiency and welding quality.

[0029] Specifically, in an exemplary embodiment, Figure 1 As shown, a method for adjusting the concentration of formic acid in a confined space is provided, which is executed by a computer device, and can be executed by a computer device such as a terminal or a server alone, or by a terminal and a server together. The method shown in the figure includes the following steps S110 to S140. Among them:

[0030] Step S110, obtaining a measurement signal detected by a formic acid concentration detection device in a confined space.

[0031] In an exemplary embodiment, the enclosed space is a process chamber for welding power devices and chips. The process chamber is connected to an air intake pipe, and a pipeline valve is installed on the air intake pipe. By controlling the opening of the pipeline valve, the formic acid concentration in the process chamber is adjusted so that the formic acid concentration in the process chamber meets the welding process standard of the current product.

[0032] It should be noted that in the embodiments of the present application, the formic acid concentration in the confined space is 0~10000ppm. The significance of setting the 0ppm point here is that some welding processes do not require a formic acid reduction process. During the welding process, the formic acid can be set to 0ppm, and the pipeline valves are kept fully closed to maintain the welding condition of 0ppm formic acid.

[0033] Step S120, performing digital-to-analog conversion and filtering processing on the measurement signal to obtain a digital measurement value.

[0034] In an exemplary embodiment, the measurement signal detected by the formic acid concentration detection device is an analog signal, which is converted into a digital signal using an ADC (Analog-to-Digital Converter). Thereafter, a digital filter is used to filter the digital signal output by the ADC according to different welding process standards. For example, the digital signal is filtered using methods such as limiting filtering, median filtering, and arithmetic mean filtering to remove noise and interference from the digital signal, improve the anti-interference ability and signal-to-noise ratio of the digital signal, and perform distortion compensation on the digital signal to obtain a digital measurement value.

[0035] In an achievable implementation, the formic acid concentration detection device in the embodiment of the present application may include a first detection device disposed at the upper part of the confined space and a second detection device disposed at the lower part of the confined space; specifically, the first detection device is disposed on the upper side wall of the process chamber and is located below the current equalizing plate, and the first detection device disposed below the current equalizing plate can prevent formic acid from decomposing too quickly to a certain extent, thereby ensuring the accuracy of formic acid measurement. The second detection device is disposed on the lower side wall of the process chamber, and can be used to detect the formic acid concentration in the lower space of the process chamber during welding.

[0036] Furthermore, the above step S110 may include: acquiring a first measurement signal detected by a first detection device and acquiring a second measurement signal detected by a second detection device.

[0037] Then the above step S120 may include: performing digital-to-analog conversion and filtering processing on the first measurement signal and the second measurement signal respectively to obtain the first digital measurement value and the second digital measurement value; performing weighted processing on the first digital measurement value and the second digital measurement to obtain the digital measurement value.

[0038] As can be understood from the above embodiments, an ADC (Analog-to-Digital Converter) is used to convert the first measurement signal into a first digital signal and the second measurement signal into a second digital signal; then a digital filter is used to filter the first digital signal and the second digital signal output by the ADC according to different welding process standards. For example, the first digital signal and the second digital signal are filtered by limiting filtering, median filtering, arithmetic mean filtering, etc. to remove noise and interference, and obtain a first digital measurement value and a second digital measurement value. According to the temperature requirements of different welding processes (temperature affects the volatilization of formic acid), the first digital measurement value and the second digital measurement value are multiplied by different coefficients (weights), and then the first digital measurement value and the second digital measurement value are accumulated and divided by the total weight value of the first digital measurement value and the second digital measurement value to obtain a digital measurement value.

[0039] By arranging a first detection device at the upper part of the confined space and a second detection device at the lower part of the confined space, not only can the average formic acid concentration in the confined space be obtained and the accuracy of formic acid concentration measurement be improved; but also when the first detection device or the second detection device is damaged, the formic acid concentration in the confined space can still be detected, thereby ensuring welding efficiency and welding quality to a certain extent.

[0040] Step S130, calibrating the digital measurement value based on the calibration curve to obtain the formic acid concentration value in the confined space.

[0041] In an exemplary embodiment, the calibration curve is a measurement curve drawn based on the formic acid concentration in the closed space detected by the formic acid concentration detection device after zero adjustment.

[0042] In other embodiments, the measurement signals measured by the formic acid concentration detection device under different welding processes can be collected, the measurement signals can be processed to obtain digital measurement values, and the digital measurement values ​​can be used to draw calibration curves under different welding processes.

[0043] In a feasible implementation, the above step S130 may include: gradually pressurizing the gas in the confined space, recording the standard formic acid concentration value corresponding to each pressurization point, and drawing a calibration curve based on the standard formic acid concentration value corresponding to each pressurization point; comparing the calibration curve with the ideal curve to obtain the measurement error of the formic acid concentration detection device; and performing measurement error compensation on the digital measurement value to obtain the formic acid concentration value in the confined space.

[0044] It can be understood from the above embodiments that the standard formic acid concentration value is a measured value obtained by the formic acid concentration detection device after zeroing. That is, before welding the power device and the chip, the formic acid concentration detection device needs to be zeroed to ensure that the zero point of the formic acid concentration detection device is correct. After zeroing, the gas in the enclosed space is gradually pressurized, and the standard formic acid concentration value corresponding to each pressurization point is recorded, and a calibration curve is drawn based on the standard formic acid concentration value corresponding to each pressurization point; the drawing of the theoretical curve is the theoretical value of the formic acid filled obtained by the equipment based on the concentration setting value of the current process. By comparing the theoretical curve with the calibration curve, the error of the formic acid concentration detection device is obtained, thereby realizing the error compensation of the digital measurement value.

[0045] The measurement error of the formic acid concentration detection device can be obtained through the calibration curve and the theoretical curve. By performing error compensation on the digital measurement value through the measurement error, the measurement value of the formic acid concentration in the confined space can be improved. On the premise of improving the measurement value of the formic acid concentration in the confined space, the formic acid concentration in the confined space can be accurately adjusted, thereby effectively improving production efficiency and welding quality.

[0046] Step S140, comparing the formic acid concentration value with the current process standard threshold, and adjusting the formic acid concentration in the confined space based on the comparison result.

[0047] In an exemplary embodiment, the current process standard threshold is a preset formic acid threshold or a formic acid threshold input by an operator through the control display panel according to the formic acid concentration in the current confined space. That is, the current process standard threshold may be a formic acid concentration value in the confined space required for welding of the current product type pre-input into the control system; or may be a formic acid threshold temporarily input by an operator through the control display panel according to the formic acid concentration value in the current confined space displayed on the control display panel.

[0048] It should be noted that in the embodiment of the present application, the current process standard threshold can be set at 4500ppm-6000ppm. Because different welding products have their own process uniqueness, it needs to be adjusted accordingly according to the actual process and welding quality. It is subject to actual application and is not specifically limited in the embodiment of the present application.

[0049] In an achievable implementation, the above step S140 may include: obtaining the current process standard threshold; comparing the formic acid concentration value with the current process standard threshold, and if the formic acid concentration value is greater than or less than the current process standard threshold, controlling the opening of the pipeline valve connected to the enclosed space.

[0050] It can be understood that the current process standard threshold is obtained, and the current process standard threshold is compared with the formic acid concentration value. If the formic acid concentration value is greater than the current process standard threshold, the pipeline valve is controlled to open and inert gas such as nitrogen is flushed into the confined space to reduce the formic acid concentration in the confined space until the formic acid concentration in the confined space is equal to the current process standard threshold, and then the pipeline valve is closed.

[0051] If the formic acid concentration value is less than the current process standard threshold, the control pipeline valve is opened and a mixture of formic acid and inert gases such as nitrogen is flushed into the confined space to increase the formic acid concentration in the confined space until the formic acid concentration in the confined space is equal to the current process standard threshold, and then the pipeline valve is closed.

[0052] In other embodiments, in order to further perform visual monitoring of the formic acid concentration in the confined space and facilitate the operator to make timely adjustments to the formic acid concentration in the confined space, the above method may also include: sending the comparison result to the control display panel so that the control display panel displays various parameters in the confined space, the various parameters including pressure parameters, formic acid concentration parameters and temperature parameters; obtaining adjustment parameters input by the control display panel, the adjustment parameters are numerical values ​​input by the operator through the control display panel for adjusting various parameters in the current confined space; the adjustment parameters include pressure adjustment parameters, formic acid concentration adjustment parameters and temperature adjustment parameters; based on the adjustment parameters, the opening of the pipeline valve connected to the confined space is controlled so that the pressure, formic acid concentration and temperature in the confined space meet the current process standards.

[0053] It can be understood from the above embodiments that when autonomous adjustment is not timely or problems occur, the operator can manually adjust the formic acid concentration in the confined space according to the parameters displayed on the control display panel, which can effectively improve production efficiency and welding quality.

[0054] In other embodiments, in order to monitor the formic acid concentration in a confined space in real time and remind the operator to adjust the formic acid concentration in the confined space in time, the above method also includes: when the formic acid concentration value is greater than or less than the current process standard threshold, sending an alarm message to the control display panel so that the control display panel displays the alarm message; and / or, when the formic acid concentration value is greater than or less than the current process standard threshold, controlling the alarm light to turn on so that the alarm light emits an audible and visual alarm.

[0055] It can be understood that in one embodiment, if the formic acid concentration value in the confined space is greater than or less than the current process standard threshold, an alarm message is sent to the control display panel, and the control display panel displays the alarm message to prompt the operator to manually adjust the formic acid concentration in the confined space in time.

[0056] In another embodiment, if the formic acid concentration value in the confined space is greater than or less than the current process standard threshold, the alarm light is controlled to turn on, and the alarm light emits an audible and visual alarm to prompt the operator to manually adjust the formic acid concentration in the confined space in time.

[0057] In another embodiment, if the formic acid concentration value in the confined space is greater than or less than the current process standard threshold, an alarm message is sent to the control display panel and the alarm light is turned on to prompt the operator to manually adjust the formic acid concentration in the confined space in time.

[0058] It should be noted that the above embodiment prompts the operator to manually adjust the formic acid concentration in the confined space in time when there is a problem with the automatic adjustment. The operator manually adjusts the formic acid concentration in the confined space to make up for the defects of untimely automatic adjustment or problems with the automatic adjustment, ensuring that the formic acid concentration in the confined space is always in dynamic balance, thereby ensuring production efficiency and welding quality.

[0059] By implementing the above-mentioned steps S110 to S140, a digital measurement value is obtained by performing digital-to-analog conversion and filtering processing on the measurement signal detected by the formic acid concentration detection device; by calibrating the digital measurement value, the formic acid concentration value in the confined space can be obtained more accurately; by comparing the formic acid concentration value with the current process standard threshold, the formic acid concentration in the confined space is adjusted, so that the formic acid concentration in the confined space meets the current welding process standard, thereby achieving matching of welding process standards for different types of products, and effectively improving production efficiency and welding quality.

[0060] Based on the same inventive concept, the embodiment of the present application also provides a device for adjusting the concentration of formic acid in a closed space for implementing the method for adjusting the concentration of formic acid in a closed space mentioned above. The implementation scheme for solving the problem provided by the device is similar to the implementation scheme recorded in the above method, so the specific limitations in one or more embodiments of the device for adjusting the concentration of formic acid in a closed space provided below can refer to the limitations of the method for adjusting the concentration of formic acid in a closed space above, and will not be repeated here.

[0061] In an exemplary embodiment, Figure 2 As shown, the provided formic acid concentration regulating device 200 in a closed space includes: a signal acquisition module 210, a signal processing module 220, a signal calibration module 230 and a contrast regulating module 240;

[0062] Specifically, the signal acquisition module 210 is used to acquire the measurement signal detected by the formic acid concentration detection device in the confined space;

[0063] The signal processing module 220 is used to perform digital-to-analog conversion and filtering on the measurement signal to obtain a digital measurement value;

[0064] The signal calibration module 230 is used to calibrate the digital measurement value based on the calibration curve to obtain the formic acid concentration value in the confined space;

[0065] The comparison and adjustment module 240 is used to compare the formic acid concentration value with the current process standard threshold value, and adjust the formic acid concentration in the confined space based on the comparison result.

[0066] As an optional embodiment, the formic acid concentration detection device includes a first detection device arranged at the upper part of the confined space and a second detection device arranged at the lower part of the confined space; the signal acquisition module 210 is also used to obtain a first measurement signal detected by the first detection device; to obtain a second measurement signal detected by the second detection device; the signal processing module 220 is also used to perform digital-to-analog conversion and filtering processing on the first measurement signal and the second measurement signal, respectively, to obtain a first digital measurement value and a second digital measurement value; and to perform weighted processing on the first digital measurement value and the second digital measurement to obtain a digital measurement value.

[0067] As an optional implementation, the signal calibration module 230 is also used to gradually pressurize the gas in the confined space, record the standard formic acid concentration value corresponding to each pressurization point, and draw a calibration curve based on the standard formic acid concentration value corresponding to each pressurization point; the standard formic acid concentration value is a measurement value obtained by the formic acid concentration detection device after zeroing; the calibration curve is compared with the ideal curve to obtain the measurement error of the formic acid concentration detection device; the digital measurement value is compensated for the measurement error to obtain the formic acid concentration value in the confined space.

[0068] As an optional implementation, the comparison adjustment module 240 is also used to obtain a current process standard threshold, which is a preset formic acid threshold or a formic acid threshold input by an operator through a control display panel according to the formic acid concentration in the current confined space; the formic acid concentration value is compared with the current process standard threshold, and if the formic acid concentration value is greater than or less than the current process standard threshold, the opening of the pipeline valve connected to the confined space is controlled.

[0069] As an optional implementation, the formic acid concentration regulating device 200 in the confined space is also used to send the comparison result to the control display panel so that the control display panel displays various parameters in the confined space, including pressure parameters, formic acid concentration parameters and temperature parameters; obtain adjustment parameters input by the control display panel, the adjustment parameters are numerical values ​​input by the operator through the control display panel for adjusting various parameters in the current confined space; the adjustment parameters include pressure adjustment parameters, formic acid concentration adjustment parameters and temperature adjustment parameters; based on the adjustment parameters, the opening of the pipeline valve connected to the confined space is controlled so that the pressure, formic acid concentration and temperature in the confined space meet the current process standards.

[0070] As an optional embodiment, the formic acid concentration regulating device 200 in the above-mentioned confined space is also used to send an alarm message to the control display panel when the formic acid concentration value is greater than or less than the current process standard threshold, so that the control display panel displays the alarm message; and / or, when the formic acid concentration value is greater than or less than the current process standard threshold, control the alarm light to turn on, so that the alarm light emits an audible and visual alarm.

[0071] Among them, by implementing this embodiment, a digital measurement value is obtained by performing digital-to-analog conversion and filtering processing on the measurement signal detected by the formic acid concentration detection device; by calibrating the digital measurement value, the formic acid concentration value in the confined space can be obtained more accurately; by comparing the formic acid concentration value with the current process standard threshold, the formic acid concentration in the confined space is adjusted, so that the formic acid concentration in the confined space can meet the current welding process standard, thereby achieving matching of welding process standards for different types of products, and effectively improving production efficiency and welding quality.

[0072] In an exemplary embodiment, a computer device is provided. The computer device may be a server or a terminal. The internal structure diagram thereof may be as follows: Figure 3As shown. The computer device includes a processor, a memory, an input / output interface (Input / Output, referred to as I / O) and a communication interface. The processor, the memory and the input / output interface are connected through a system bus, and the communication interface is connected to the system bus through the input / output interface. The processor of the computer device is used to provide computing and control capabilities. The memory of the computer device includes a non-volatile storage medium and an internal memory. The non-volatile storage medium stores an operating system, a computer program and a database. The internal memory provides an environment for the operation of the operating system and the computer program in the non-volatile storage medium. The database of the computer device is used to store video tag processing data. The input / output interface of the computer device is used to exchange information between the processor and an external device. The communication interface of the computer device is used to communicate with an external terminal through a network connection. When the computer program is executed by the processor, a method for adjusting the concentration of formic acid in a confined space is implemented.

[0073] Those skilled in the art will understand that Figure 3 The structure shown in the figure is only a block diagram of a part of the structure related to the solution of the present application, and does not constitute a limitation on the computer device to which the solution of the present application is applied. The specific computer device may include more or fewer components than those shown in the figure, or combine certain components, or have a different arrangement of components.

[0074] In an exemplary embodiment, a computer device is further provided, including a memory and a processor, wherein a computer program is stored in the memory, and the processor implements the steps in the above-mentioned method embodiments when executing the computer program.

[0075] In an exemplary embodiment, a computer-readable storage medium is provided, storing a computer program, and when the computer program is executed by a processor, the steps in the above method embodiments are implemented.

[0076] In an exemplary embodiment, a computer program product is provided, including a computer program, and when the computer program is executed by a processor, the steps in the above method embodiments are implemented.

[0077] It should be noted that the user information (including but not limited to user device information, user personal information, etc.) and data (including but not limited to data used for analysis, stored data, displayed data, etc.) involved in this application are all information and data authorized by the user or fully authorized by all parties, and the collection, use and processing of relevant data must comply with relevant regulations.

[0078] Those skilled in the art can understand that all or part of the processes in the above-mentioned embodiment methods can be completed by instructing the relevant hardware through a computer program, and the computer program can be stored in a non-volatile computer-readable storage medium. When the computer program is executed, it can include the processes of the embodiments of the above-mentioned methods. Among them, any reference to the memory, database or other medium used in the embodiments provided in this application can include at least one of non-volatile and volatile memory. Non-volatile memory can include read-only memory (ROM), magnetic tape, floppy disk, flash memory, optical memory, high-density embedded non-volatile memory, resistive random access memory (ReRAM), magnetoresistive random access memory (MRAM), ferroelectric random access memory (FRAM), phase change memory (PCM), graphene memory, etc. Volatile memory can include random access memory (RAM) or external cache memory, etc. By way of illustration and not limitation, RAM may be in various forms, such as Static Random Access Memory (SRAM) or Dynamic Random Access Memory (DRAM).

[0079] The database involved in each embodiment provided in this application may include at least one of a relational database and a non-relational database. The non-relational database may include a distributed database based on blockchain, etc., but is not limited thereto. The processor involved in each embodiment provided in this application may be a general-purpose processor, a central processing unit, a graphics processor, a digital signal processor, a programmable logic device, a data processing logic device based on quantum computing, etc., but is not limited thereto.

[0080] The technical features of the above embodiments may be combined arbitrarily. To make the description concise, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0081] This article uses specific examples to illustrate the principles and implementation methods of this application. The description of the above embodiments is only used to help understand the method and core ideas of this application. At the same time, for those skilled in the art, according to the ideas of this application, there will be changes in the specific implementation methods and application scope. In summary, the content of this specification should not be understood as limiting this application.

Claims

1. A method for adjusting formic acid concentration in a confined space, characterized in that: The method for adjusting the formic acid concentration in a confined space comprises: Acquire a first measurement signal detected by a first detection device and a second measurement signal detected by a second detection device in the confined space; Select different filtering algorithms based on different welding process standards to filter the first measurement signal and the second measurement signal to obtain a first digital measurement value and a second digital measurement value; Based on the temperature requirements of different welding processes, different weights are assigned to the first digital measurement value and the second digital measurement value, and the first digital measurement value and the second digital measurement value assigned with different weights are accumulated and then divided by the total weight value of the first digital measurement value and the second digital measurement value to obtain a digital measurement value; The gas in the confined space is gradually pressurized, the standard formic acid concentration value corresponding to each pressurization point is recorded, and a calibration curve is drawn based on the standard formic acid concentration value corresponding to each pressurization point; the standard formic acid concentration value is a measurement value obtained by the formic acid concentration detection device after zeroing; Comparing the calibration curve with the ideal curve to obtain the measurement error of the formic acid concentration detection device; Performing measurement error compensation on the digital measurement value to obtain the formic acid concentration value in the confined space; The formic acid concentration value is compared with the current process standard threshold, and the formic acid concentration in the confined space is adjusted based on the comparison result.

2. The method for adjusting formic acid concentration in a confined space according to claim 1, characterized in that: The formic acid concentration value is compared with the current process standard threshold, and the formic acid concentration in the confined space is adjusted based on the comparison result, including: Acquire the current process standard threshold, where the current process standard threshold is a preset formic acid threshold or a formic acid threshold input by an operator through a control display panel according to a current formic acid concentration in the confined space; The formic acid concentration value is compared with the current process standard threshold value. If the formic acid concentration value is greater than or less than the current process standard threshold value, the opening of the pipeline valve connected to the enclosed space is controlled.

3. The method for adjusting formic acid concentration in a confined space according to claim 2, characterized in that: The method further comprises: Sending the comparison result to the control display panel so that the control display panel displays various parameters in the current confined space, wherein the various parameters include pressure parameters, formic acid concentration parameters, and temperature parameters; Acquiring adjustment parameters inputted by the control display panel, wherein the adjustment parameters are values ​​inputted by an operator through the control display panel for adjusting various parameters in the current confined space; the adjustment parameters include pressure adjustment parameters, formic acid concentration adjustment parameters and temperature adjustment parameters; The opening of the pipeline valve connected to the enclosed space is controlled based on the adjustment parameters so that the pressure, formic acid concentration and temperature in the enclosed space meet the current process standards.

4. The method for adjusting formic acid concentration in a confined space according to claim 1, characterized in that: The method further comprises: When the formic acid concentration value is greater than or less than the current process standard threshold, sending an alarm message to the control display panel so that the control display panel displays the alarm message; and / or, When the formic acid concentration value is greater than or less than the current process standard threshold, the warning light is controlled to turn on so that the warning light emits an audible and visual alarm.

5. A device for adjusting formic acid concentration in a confined space, characterized in that: The formic acid concentration regulating device in the enclosed space comprises: A signal acquisition module, used to acquire a first measurement signal detected by a first detection device and a second measurement signal detected by a second detection device in a confined space; A signal processing module, configured to select different filtering algorithms based on different welding process standards to filter the first measurement signal and the second measurement signal to obtain a first digital measurement value and a second digital measurement value; assign different weights to the first digital measurement value and the second digital measurement value based on the temperature requirements of different welding processes, and accumulate the first digital measurement value and the second digital measurement value assigned with different weights and then divide them by the total weight value of the first digital measurement value and the second digital measurement value to obtain a digital measurement value; A signal calibration module is used to gradually pressurize the gas in the confined space, record the standard formic acid concentration value corresponding to each pressurization point, and draw a calibration curve based on the standard formic acid concentration value corresponding to each pressurization point; the standard formic acid concentration value is a measurement value obtained by the formic acid concentration detection device after zeroing; compare the calibration curve with the ideal curve to obtain the measurement error of the formic acid concentration detection device; perform measurement error compensation on the digital measurement value to obtain the formic acid concentration value in the confined space; A comparison and adjustment module is used to compare the formic acid concentration value with the current process standard threshold value, and adjust the formic acid concentration in the confined space based on the comparison result.

6. A computer device comprising: A memory, a processor, and a computer program stored in the memory and executable on the processor, wherein the processor executes the computer program to implement the steps of the method for adjusting the formic acid concentration in a confined space according to any one of claims 1 to 4.

7. A computer-readable storage medium having a computer program stored thereon, characterized in that: When the computer program is executed by a processor, the steps of the method for adjusting the concentration of formic acid in a confined space described in any one of claims 1 to 4 are implemented.

8. A computer program product, comprising a computer program, characterized in that When the computer program is executed by a processor, the steps of the method for adjusting the concentration of formic acid in a confined space described in any one of claims 1 to 4 are implemented.

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