A liquid level detection method and system for a substrate glass platinum channel

Abstract

The present invention discloses a liquid level detection method and system for a platinum channel of a substrate glass, comprising the following steps: setting temperature difference thresholds A and B and a threshold C for the number of thermocouple groups that meet the temperature difference thresholds A and B; collecting thermocouple temperature data at the liquid level port of the platinum channel of the substrate glass at the same time; calculating the temperature difference between adjacent thermocouples in the temperature data set to form a temperature difference data set; S4: determining whether the temperature difference data meets the ranges A and B, obtaining the number of data values that meet the temperature difference thresholds A and B, and recording it as F; if F is less than C, repeating step S4 and performing the next determination; if so, determining F = F + 1; if not, maintaining the F value unchanged until F is not less than C; when F is not less than C, calculating the liquid level height of the platinum channel, and completing liquid level detection of the platinum channel of the substrate glass. This method achieves real-time visual monitoring of the substrate glass liquid level, reducing manual measurement errors and existing safety concerns.

Description

Technical Field

[0001] The invention belongs to the field of substrate glass manufacturing and relates to a liquid level detection method and system for a platinum channel of a substrate glass. Background Art

[0002] The platinum channel is a core piece of equipment in LCD glass substrate production, playing a crucial role in product quality. Technically, it serves as the channel for transferring molten glass from the furnace to the forming process. During this process, it also performs various other functions, including clarification, homogenization, temperature control, and flow control.

[0003] Due to the long-term operation of the platinum channel in the high-temperature environment of molten glass, the wall thickness of the platinum channel is continuously thinned by the internal molten glass and the volatilization under the high temperature outside, until it is damaged. However, the platinum channel is covered with refractory material, and the thinning and damage process of the platinum channel is slow, making it impossible to directly monitor its operating status and remaining operating life, seriously affecting the service life of the production line and restricting the production line process adjustment. Summary of the Invention

[0004] In response to the problems existing in the prior art, the present invention provides a liquid level detection method and system for a platinum channel of a substrate glass, thereby realizing real-time visual monitoring of the liquid level of the substrate glass and reducing manual measurement errors and existing insecurity.

[0005] The present invention is achieved through the following technical solutions:

[0006] A method for detecting a liquid level in a platinum channel of a glass substrate comprises the following steps:

[0007] S1: Set the temperature difference thresholds A and B and the thermocouple group number threshold C that meets the temperature difference thresholds A and B;

[0008] S2: Collect the temperature data of the thermocouple at the liquid level port of the platinum channel of the substrate glass at the same time and form a temperature data set P m , where m is the number of thermocouple groups;

[0009] S3: Calculate the temperature data set P m The temperature difference between adjacent thermocouples in each set of thermocouples is calculated and a temperature difference data set S is formed. m ;

[0010] S4: Judgment data set S m The data value S in mi Whether A≤S is satisfied mi ≤B, and obtain the data value S that meets the temperature difference thresholds A and B mi , and the number of data values that meet the temperature difference thresholds A and B, denoted as F;

[0011] S5: Determine the size relationship between F and C. If F is less than C, repeat step S4, and m=m+1; and determine the size of the data set S m+1 The data value S in (m+1)i Whether A≤S is satisfied (m+1)i ≤B, if satisfied, then F=F+1, if not satisfied, then the F value remains unchanged; until F is not less than C;

[0012] S6: When F is not less than C, the data value S that meets the temperature difference thresholds A and B is obtained. mi The liquid level height of the platinum channel is calculated based on the number F of data values that meet the temperature difference thresholds A and B, thereby completing the liquid level detection of the platinum channel of the substrate glass.

[0013] Preferably, the initial value of the number F of thermocouple groups that meet the temperature thresholds A and B is 0.

[0014] Preferably, the dataset P m Specifically (P1, P2, P3, ..., P m );

[0015] Where P1 is (T 11 , T 12 , T 13 ,…,T 1n ), P2 is (T 21 , T 22 , T 23 ,…,T 2n ),…,P m is (T m1 , T m2 , T m3 ,…,T mn );

[0016] Where n is the number of thermocouples in each thermocouple group.

[0017] Preferably, the dataset S m Specifically (S m2 , S m3 ,…,S mi ), where i = 2, 3,…, n.

[0018] Preferably, the dataset S m The specific acquisition process is as follows:

[0019] In dataset P1: (T 11 , T 12 , T 13 ,…,T 1n ), S 1i =T 1i -T 1(i-1) , forming data set S1: (S12 , S 13 ,…,S 1i ), where: i = 2, 3, ..., n;

[0020] In dataset P2: (T 21 , T 22 , T 23 ,…,T 2n ) in: S 2i =T 2i -T 2(i-1) , forming data set S2: (S 22 , S 23 ,…,S 2i ), where: i = 2, 3, ..., n;

[0021] …

[0022] In the dataset P m :(T m1 , T m2 , T m3 ,…,T mn ) in: S mi =T mi -T m(i-1) , forming the data set S m :(S m2 , S m3 ,…,S mi ), where: i = 2, 3,…, n.

[0023] Preferably, in step S6, the liquid level is calculated by formula (1):

[0024]

[0025] in:

[0026] K mi The S that meets the temperature difference thresholds A and B is obtained mi Data value;

[0027] F is the S that meets the temperature difference thresholds A and B mi The number of data values;

[0028] b is the compensation parameter.

[0029] A liquid level detection system for a substrate glass platinum channel, comprising:

[0030] A threshold setting unit is used to set temperature difference thresholds A and B and a threshold C of the number of thermocouple groups that meet the temperature difference thresholds A and B;

[0031] The data acquisition unit is used to collect the temperature data of the thermocouple at the liquid level port of the platinum channel of the substrate glass at the same time and form a data set P m , where m is the number of thermocouple groups;

[0032] Data processing unit, used to calculate the temperature data set P m The temperature difference between adjacent thermocouples in each set of thermocouples is calculated and a temperature difference data set S is formed. m ;

[0033] The first judgment unit is used to judge the data set S m The data value S in mi Whether A≤S is satisfied mi ≤B, and obtain the data value S that meets the temperature difference thresholds A and B mi , and the number of data values that meet the temperature difference thresholds A and B, denoted as F;

[0034] The second judgment unit is used to judge the size relationship between F and C. If F is less than C, the process of the first judgment unit is repeated, and m=m+1; and the data set S is judged. m+1 The data value S in (m+1)i Whether A≤S is satisfied (m+1)i ≤B, if satisfied, then F=F+1, if not satisfied, then the F value remains unchanged; until F is not less than C;

[0035] The result calculation unit, when F is not less than C, uses the data value S obtained to meet the temperature difference thresholds A and B mi The liquid level height of the platinum channel is calculated based on the number F of data values that meet the temperature difference thresholds A and B, thereby completing the liquid level detection of the platinum channel of the substrate glass.

[0036] A terminal device comprises a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein the processor executes the steps of any one of the above methods when executing the computer program.

[0037] A computer-readable storage medium stores a computer program, wherein the computer program implements the steps of any one of the above methods when executed by a processor.

[0038] Compared with the prior art, the present invention has the following beneficial technical effects:

[0039] A method for detecting the liquid level of a platinum channel of a glass substrate is disclosed. The method collects temperature data from each thermocouple in each group of thermocouples at the liquid level port, calculates the temperature difference between adjacent thermocouples in each group, compares the temperature difference between adjacent thermocouples in each group of data with a set temperature difference threshold, and obtains temperature difference data that meets the temperature difference threshold. The temperature difference threshold can reflect the temperature difference between thermocouples below the liquid surface and thermocouples not in the liquid, and the position of the liquid surface is determined by this temperature difference. At the same time, due to the swaying and unevenness of the liquid surface, a threshold value for the number of thermocouple groups that meets the temperature difference threshold is set, and the number of temperature difference data that meets the temperature difference threshold is obtained. The temperature difference data that meets the temperature difference threshold and the threshold value for the number of thermocouple groups, as well as the number of groups, are used to calculate the height of the liquid surface in the platinum channel. This method achieves real-time visual monitoring of the substrate glass liquid level, reducing manual measurement errors and existing safety concerns.

[0040] Furthermore, the initial value of the number of thermocouple groups F that meet the temperature thresholds A and B is 0, which can make data recording and use more convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0041] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for use in the embodiments. It should be understood that the following drawings only illustrate certain embodiments of the present invention and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying any creative work.

[0042] Figure 1 This is a flow chart of a liquid level detection method for a platinum channel of a substrate glass provided in an embodiment of the present invention;

[0043] Figure 2 This is a structural schematic diagram of the liquid level detection system for the substrate glass platinum channel provided by the present invention. DETAILED DESCRIPTION

[0044] To make the objectives, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions of the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Generally, the components of the embodiments of the present invention described and shown in the drawings herein can be arranged and designed in various different configurations.

[0045] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the invention as claimed, but rather merely represents selected embodiments of the present invention. All other embodiments derived by persons of ordinary skill in the art based on the embodiments of the present invention without creative effort shall fall within the scope of protection of the present invention.

[0046] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, it does not need to be further defined or explained in subsequent drawings.

[0047] In the description of the embodiments of the present invention, it should be noted that if the terms "upper," "lower," "horizontal," "inner," etc. appear, the orientation or positional relationship indicated is based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship in which the inventive product is typically placed when in use. These terms are merely for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or component referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on the present invention. In addition, the terms "first," "second," etc. are used only to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0048] In addition, if the term "horizontal" appears, it does not mean that the component must be absolutely horizontal, but can be slightly tilted. For example, "horizontal" only means that its direction is more horizontal than "vertical", and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0049] In the description of the embodiments of the present invention, it should be noted that, unless otherwise expressly specified or limited, the terms "disposed," "installed," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium; and they can refer to internal connections between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on specific circumstances.

[0050] The present invention is described in further detail below with reference to the accompanying drawings:

[0051] like Figure 1 As shown, a method for detecting the liquid level of a platinum channel of a substrate glass comprises the following steps:

[0052] S1: Set the temperature difference thresholds A and B and the thermocouple group number threshold C that meets the temperature difference thresholds A and B;

[0053] S2: Collect the temperature data of the thermocouple at the liquid level port of the platinum channel of the substrate glass at the same time and form a temperature data set Pm , where m is the number of thermocouple groups, and m = 1, 2, 3, ...;

[0054] Dataset P m Specifically (P1, P2, P3, ..., P m );

[0055] Where P1 is (T 11 , T 12 , T 13 ,…,T 1n ), P2 is (T 21 , T 22 , T 23 ,…,T 2n ),…,P m is (T m1 , T m2 , T m3 ,…,T mn );

[0056] Wherein, n is the number of thermocouples in each group of thermocouples, n=1, 2, 3, ...

[0057] S3: Calculate the temperature data set P m The temperature difference between adjacent thermocouples in each set of thermocouples is calculated and a temperature difference data set S is formed. m ; Dataset S m Specifically (S m2 , S m3 ,…,S mi ), where i = 2, 3, ..., n;

[0058] The dataset S m The specific acquisition process is as follows:

[0059] In dataset P1: (T 11 , T 12 , T 13 ,…,T 1n ), S 1i =T 1i -T 1(i-1) , forming data set S1: (S 12 , S 13 ,…,S 1i ), where: i = 2, 3, ..., n;

[0060] In dataset P2: (T 21 , T 22 , T 23 ,…,T 2n ) in: S 2i =T 2i -T 2(i-1) , forming data set S2: (S22 , S 23 ,…,S 2i ), where: i = 2, 3, ..., n;

[0061] …

[0062] In the dataset P m :(T m1 , T m2 , T m3 ,…,T mn ) in: S mi =T mi -T m(i-1) , forming a data set S m :(S m2 , S m3 ,…,S mi ), where: i = 2, 3,…, n.

[0063] S4: Judgment data set S m The data value S in mi Whether A≤S is satisfied mi ≤B, and obtain the data value S that meets the temperature difference thresholds A and B mi , and the number of data values that meet the temperature difference thresholds A and B is recorded as F, and the initial value of F is 0.

[0064] S5: Determine the size relationship between F and C. If F is less than C, repeat step S4, and m=m+1; and determine the size of the data set S m+1 The data value S in (m+1)i Whether A≤S is satisfied (m+1)i ≤B, if satisfied, then F=F+1, if not satisfied, then the F value remains unchanged; until F is not less than C;

[0065] S6: When F is not less than C, the data value S that meets the temperature difference thresholds A and B is obtained. mi And the number F of data values that meet the temperature difference thresholds A and B, and calculate the liquid level height of the platinum channel through formula (1), completing the liquid level detection of the platinum channel of the substrate glass.

[0066]

[0067] in:

[0068] K mi The S that meets the temperature difference thresholds A and B is obtained mi Data value;

[0069] F is the S that meets the temperature difference thresholds A and B mi The number of data values;

[0070] b is the compensation parameter.

[0071] The present invention also provides a liquid level detection system for a substrate glass platinum channel, such as Figure 2 As shown, including:

[0072] A threshold setting unit 100 is used to set temperature difference thresholds A and B and a threshold C of the number of thermocouple groups that meet the temperature difference thresholds A and B;

[0073] The data acquisition unit 200 is used to collect the temperature data of the thermocouple at the liquid level port of the platinum channel of the substrate glass at the same time and form a data set P m , where m is the number of thermocouple groups, m = 1, 2, 3, ...;

[0074] The data processing unit 300 is used to calculate the temperature data set P m The temperature difference between adjacent thermocouples in each set of thermocouples is calculated and a temperature difference data set S is formed. m ;

[0075] The first judgment unit 400 is used to judge the data set S m The data value S in mi Whether A≤S is satisfied mi ≤B, and obtain the data value S that meets the temperature difference thresholds A and B mi , and the number of data values that meet the temperature difference thresholds A and B, denoted as F;

[0076] The second judgment unit 500 is used to judge the size relationship between F and C. If F is less than C, the process of the first judgment unit is repeated, and m=m+1; and the data set S is judged. m+1 The data value S in (m+1)i Whether A≤S is satisfied (m+1)i ≤B, if satisfied, then F=F+1, if not satisfied, then the F value remains unchanged; until F is not less than C;

[0077] The result calculation unit 600, when F is not less than C, uses the data value S that meets the temperature difference thresholds A and B to calculate the value of the temperature difference. mi The liquid level height of the platinum channel is calculated based on the number F of data values that meet the temperature difference thresholds A and B, thereby completing the liquid level detection of the platinum channel of the substrate glass.

[0078] An embodiment of the present invention provides a terminal device. The terminal device of this embodiment includes a memory, a processor, and a computer program stored in the memory and executable on the processor. Alternatively, when the processor executes the computer program, the functions of the modules / units in the above-mentioned apparatus embodiments are implemented. When the processor executes the computer program, the following steps are implemented:

[0079] S1: Set the temperature difference thresholds A and B and the thermocouple group number threshold C that meets the temperature difference thresholds A and B;

[0080] S2: Collect the temperature data of the thermocouple at the liquid level port of the platinum channel of the substrate glass at the same time and form a temperature data set P m , where m is the number of thermocouple groups, and m = 1, 2, 3, ...;

[0081] S3: Calculate the temperature data set P m The temperature difference between adjacent thermocouples in each set of thermocouples is calculated and a temperature difference data set S is formed. m ;

[0082] S4: Judgment data set S m The data value S in mi Whether A≤S is satisfied mi ≤B, and obtain the data value S that meets the temperature difference thresholds A and B mi , and the number of data values that meet the temperature difference thresholds A and B, denoted as F;

[0083] S5: Determine the size relationship between F and C. If F is less than C, repeat step S4, and m=m+1; and determine the size of the data set S m+1 The data value S in (m+1)i Whether A≤S is satisfied (m+1)i ≤B, if satisfied, then F=F+1, if not satisfied, then the F value remains unchanged; until F is not less than C;

[0084] S6: When F is not less than C, the data value S that meets the temperature difference thresholds A and B is obtained. mi The liquid level height of the platinum channel is calculated based on the number F of data values that meet the temperature difference thresholds A and B, thereby completing the liquid level detection of the platinum channel of the substrate glass.

[0085] The computer program may be divided into one or more modules / units, which are stored in the memory and executed by the processor to accomplish the present invention.

[0086] The present invention also provides a computer-readable storage medium, which stores a computer program. When the computer program is executed by a processor, the following steps can be implemented.

[0087] S1: Set the temperature difference thresholds A and B and the thermocouple group number threshold C that meets the temperature difference thresholds A and B;

[0088] S2: Collect the temperature data of the thermocouple at the liquid level port of the platinum channel of the substrate glass at the same time and form a temperature data set P m , where m is the number of thermocouple groups, and m = 1, 2, 3, ...;

[0089] S3: Calculate the temperature data set P m The temperature difference between adjacent thermocouples in each set of thermocouples is calculated and a temperature difference data set S is formed. m ;

[0090] S4: Judgment data set S m The data value S in mi Whether A≤S is satisfied mi ≤B, and obtain the data value S that meets the temperature difference thresholds A and B mi , and the number of data values that meet the temperature difference thresholds A and B, denoted as F;

[0091] S5: Determine the size relationship between F and C. If F is less than C, repeat step S4, and m=m+1; and determine the size of the data set S m+1 The data value S in (m+1)i Whether A≤S is satisfied (m+1)i ≤B, if satisfied, then F=F+1, if not satisfied, then the F value remains unchanged; until F is not less than C;

[0092] S6: When F is not less than C, the data value S that meets the temperature difference thresholds A and B is obtained. mi The liquid level height of the platinum channel is calculated based on the number F of data values that meet the temperature difference thresholds A and B, thereby completing the liquid level detection of the platinum channel of the substrate glass.

[0093] The terminal device may be a computing device such as a desktop computer, a notebook computer, a PDA, a cloud server, etc. The terminal device may include, but is not limited to, a processor and a memory.

[0094] The processor can be a central processing unit (CPU), or other general-purpose processors, digital signal processors (DSP), application-specific integrated circuits (ASIC), field-programmable gate arrays (FPGA) or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, etc.

[0095] The memory may be used to store the computer programs and / or modules, and the processor implements various functions of the terminal device by running or executing the computer programs and / or modules stored in the memory and calling the data stored in the memory.

[0096] If the module / unit integrated in the terminal device is implemented in the form of a software functional unit and sold or used as an independent product, it can be stored in a computer-readable storage medium. Based on this understanding, the present invention implements all or part of the process in the above-mentioned embodiment method, and can also be completed by instructing the relevant hardware through a computer program. The computer program can be stored in a computer-readable storage medium. When the computer program is executed by a processor, it can implement the steps of each of the above-mentioned method embodiments. The computer program includes computer program code, which can be in source code form, object code form, executable file or some intermediate form. The computer-readable medium may include: any entity or device capable of carrying the computer program code, recording medium, USB flash drive, mobile hard disk, magnetic disk, optical disk, computer memory, read-only memory (ROM), random access memory (RAM), electric carrier signal, telecommunication signal and software distribution medium. It should be noted that the content contained in the computer-readable medium can be appropriately increased or decreased according to the requirements of legislation and patent practice in the jurisdiction. For example, in some jurisdictions, according to legislation and patent practice, computer-readable media do not include electric carrier signals and telecommunication signals.

[0097] The above are merely preferred embodiments of the present invention and are not intended to limit the present invention. Those skilled in the art will readily appreciate that various modifications and variations of the present invention are possible. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.

Claims

1. A method for detecting the liquid level of a platinum channel of a substrate glass, characterized in that: The following steps are involved: S1: Set the temperature difference thresholds A and B and the number of thermocouple groups C that meet the temperature difference thresholds A and B; S2: Collect the temperature data of the thermocouple at the liquid level port of the platinum channel of the substrate glass at the same time and form a temperature data set P m , where m is the number of thermocouple groups; S3: Calculate the temperature data set P m The temperature difference between adjacent thermocouples in each set of thermocouples is calculated and a temperature difference data set S is formed. m ; S4: Judgment data set S m The data value S in mi Whether A≤S is satisfied mi ≤B, and obtain the data value S that meets the temperature difference thresholds A and B mi , and the number of data values that meet the temperature difference thresholds A and B, denoted as F; S5: Determine the size relationship between F and C. If F is less than C, repeat step S4, and m=m+1; and determine the size of the data set S m+1 The data value S in （m+1）i Whether A≤S is satisfied （m+1）i ≤B, if satisfied, then F=F+1, if not satisfied, then the F value remains unchanged; until F is not less than C; S6: When F is not less than C, the data value S that meets the temperature difference thresholds A and B is obtained. mi The liquid level height of the platinum channel is calculated based on the number F of data values that meet the temperature difference thresholds A and B, thereby completing the liquid level detection of the platinum channel of the substrate glass; In step S6, the liquid level is calculated by formula (1): （1） in: K mi The S that meets the temperature difference thresholds A and B is obtained mi Data value; F is the S that meets the temperature difference thresholds A and B mi The number of data values; b is the compensation parameter.

2. The method for detecting liquid level in a platinum channel of a substrate glass according to claim 1, wherein: The initial value of the number F of thermocouple groups that meet the temperature thresholds A and B is 0.

3. The method for detecting liquid level in a platinum channel of a substrate glass according to claim 1, wherein: The dataset P m Specifically (P1, P2, P3, ..., P m ); Where P1 is (T 11 , T 12 , T 13 ,…,T 1n ), P2 is (T 21 , T 22 , T 23 ,…,T 2n ),…,P m is (T m1 , T m2 , T m3 ,…,T mn ); Where n is the number of thermocouples in each thermocouple group.

4. The method for detecting liquid level in a platinum channel of a substrate glass according to claim 3, wherein: The dataset S m Specifically (S m2 , S m3 ,…,S mi ), where i=2, 3,…, n.

5. The method for detecting liquid level in a platinum channel of a substrate glass according to claim 4, wherein: The dataset S m The specific acquisition process is as follows: In dataset P1: (T 11 , T 12 , T 13 ,…,T 1n ), S 1i =T 1i -T 1(i-1) , forming data set S1: (S 12 , S 13 ,…,S 1i ), where: i = 2, 3, ..., n; In dataset P2: (T 21 , T 22 , T 23 ,…,T 2n ) in: S 2i =T 2i -T 2(i-1) , forming data set S2: (S 22 , S 23 ,…,S 2i ), where: i = 2, 3, ..., n; … In the dataset P m :(T m1 , T m2 , T m3 ,…,T mn ) in: S mi =T mi -T m(i-1) , forming the data set S m :(S m2 , S m3 ,…,S mi ), where: i=2, 3,…, n.

6. A liquid level detection system for a substrate glass platinum channel, characterized in that: include: A threshold setting unit is used to set temperature difference thresholds A and B and a threshold C of the number of thermocouple groups that meet the temperature difference thresholds A and B; The data acquisition unit is used to collect the temperature data of the thermocouple at the liquid level port of the platinum channel of the substrate glass at the same time and form a data set P m , where m is the number of thermocouple groups; Data processing unit, used to calculate the temperature data set P m The temperature difference between adjacent thermocouples in each set of thermocouples is calculated and a temperature difference data set S is formed. m ; The first judgment unit is used to judge the data set S m The data value S in mi Whether A≤S is satisfied mi ≤B, and obtain the data value S that meets the temperature difference thresholds A and B mi , and the number of data values that meet the temperature difference thresholds A and B, denoted as F; The second judgment unit is used to judge the size relationship between F and C. If F is less than C, the process of the first judgment unit is repeated, and m=m+1; and the data set S is judged. m+1 The data value S in （m+1）i Whether A≤S is satisfied （m+1）i ≤B, if satisfied, then F=F+1, if not satisfied, then the F value remains unchanged; until F is not less than C; The result calculation unit, when F is not less than C, uses the data value S obtained to meet the temperature difference thresholds A and B mi The liquid level height of the platinum channel is calculated based on the number F of data values that meet the temperature difference thresholds A and B, thereby completing the liquid level detection of the platinum channel of the substrate glass; When F is not less than C, the data value S that meets the temperature difference thresholds A and B is obtained. mi The liquid level of the platinum channel is calculated based on the number F of data values that meet the temperature difference thresholds A and B. Specifically, the liquid level is calculated using formula (1): （1） in: K mi The S that meets the temperature difference thresholds A and B is obtained mi Data value; F is the S that meets the temperature difference thresholds A and B mi The number of data values; b is the compensation parameter.

7. A terminal device comprising a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein: When the processor executes the computer program, the steps of the method according to any one of claims 1 to 5 are implemented.

8. A computer-readable storage medium storing a computer program, characterized in that: When the computer program is executed by a processor, the steps of the method according to any one of claims 1 to 5 are implemented.

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