Thermal cycle stability control method and system for biochemical analyzer

Abstract

The invention belongs to the field of thermal cycle control, relates to a data analysis technology, and aims to solve the problem that constant temperature control optimization cannot be performed by combining a target temperature of a heating object and an environment temperature in the prior art, in particular to a thermal cycle stable control method and system for a biochemical analyzer. The stability control platform is in communication connection with a stability test module, a test analysis module, a control optimization module and a database; the stability test module is used for performing thermal cycle stability test analysis on the biochemical analyzer: generating a test period, executing a plurality of complete stability test processes in the test period, and obtaining a test data set of the stability test processes when the stability test processes are finished; according to the invention, thermal cycle stability test analysis can be carried out on the biochemical analyzer, a plurality of stability test processes are executed in a test period, statistics and analysis are carried out on various thermal cycle parameters in the stability test processes to obtain a test data set, and data support is provided for the test analysis process.

Description

Technical Field

[0001] The invention belongs to the field of thermal cycle control, relates to data analysis technology, and specifically is a thermal cycle stability control method and system for a biochemical analyzer. Background Art

[0002] The thermal cycle control system of the biochemical analyzer is a key component to ensure the smooth progress of the biochemical detection process. Its main functions include temperature control to ensure that the biochemical reaction is carried out under specific temperature conditions, thereby improving the accuracy and repeatability of the detection.

[0003] The invention patent with announcement number CN111122645B discloses a phase change material hot and cold cycle stability test system and test method. The phase change material hot and cold cycle stability test method provided by the invention has an overall process that is easy to realize through automated control, which is beneficial to speed up the stability test and shorten the test cycle; however, the test method cannot optimize the constant temperature control by combining the target temperature of the heating object with the ambient temperature, nor can it match and analyze the constant temperature mode, resulting in the inability to guarantee the heating efficiency and constant temperature effect.

[0004] In view of the above technical problems, this application proposes a solution. Summary of the invention

[0005] The purpose of the present invention is to provide a method and system for thermal cycle stability control of a biochemical analyzer, which is used to solve the problem that the prior art cannot optimize the constant temperature control by combining the target temperature of the heating object with the ambient temperature;

[0006] The technical problem to be solved by the present invention is: how to provide a thermal cycle stabilization control method and system for a biochemical analyzer that can optimize constant temperature control by combining the target temperature of a heating object with the ambient temperature.

[0007] The purpose of the present invention can be achieved through the following technical solutions:

[0008] A biochemical analyzer thermal cycle stability control system includes a stability control platform, wherein the stability control platform is communicatively connected with a stability test module, a test analysis module, a control optimization module and a database;

[0009] The stability test module is used to perform a thermal cycle stability test analysis on the biochemical analyzer: generate a test cycle, execute several complete stability test processes within the test cycle, randomly match a target temperature value for each stability test process, and the target temperature value should be selected and matched within the temperature range of the biochemical analyzer reaction disk; before the start of the stability test process, randomly assign a constant temperature mode as a thermal cycle test mode, and use the thermal cycle test mode to heat the reaction disk of the biochemical analyzer during the stability test process; obtain a test data set of the stability test process at the end of the stability test process, and send all the test data sets of the stability test process to the test analysis module through the stability control platform;

[0010] The test analysis module is used to analyze the test data set of the stable test process: perform numerical calculation on the test data set to obtain the test coefficient CS of the stable test process, obtain the laboratory air temperature value at the start of the stable test process and mark it as the external temperature value of the stable test process, form the external temperature range by the maximum and minimum values ​​of the external temperature values ​​of all stable test processes, divide the external temperature range into several external temperature intervals, and mark the adjustment intervals in the external temperature intervals;

[0011] The control optimization module is used to perform thermal cycle optimization control analysis on the biochemical analyzer.

[0012] Furthermore, the execution process of the stable test process includes: obtaining the surface temperature value of the reaction disk of the biochemical analyzer in real time and marking it as the reaction value; obtaining the target temperature high value MWmax and the target temperature low value MWmin by the formula MWmax=t1×MW and MWmin=t2×MW, wherein t1 and t2 are both proportional coefficients, and 1.05≤t1≤1.15, 0.85≤t2≤0.95, and MW is the target temperature value of the stable test process; establishing a rectangular coordinate system with the test time as the X-axis and the reaction disk surface temperature value as the Y-axis, and making a low temperature dividing line, a target dividing line and a high temperature dividing line in the first quadrant of the rectangular coordinate system. The dividing line, the low-temperature dividing line, the target dividing line and the high-temperature dividing line are all rays parallel to the X-axis, and the endpoint coordinates of the low-temperature dividing line, the target dividing line and the high-temperature dividing line are (0, MWmin), (0, MW) and (0, MWmax) respectively; in the rectangular coordinate system, a test curve is drawn according to the execution time of the stable test process and the real-time temperature value of the reaction disk during the stable test process, and the first intersection point of the test curve with the low-temperature dividing line is marked as the constant temperature starting point, and the second intersection point of the test curve with the low-temperature dividing line or the first intersection point with the high-temperature dividing line is marked as the constant temperature end point; the stable test process terminates at the constant temperature end point.

[0013] Furthermore, the process of acquiring the test data set of the stable test process includes: when the stable test process terminates, the horizontal axis value of the constant temperature starting point is marked as the heating efficiency value JX, the horizontal axis difference between the constant temperature ending point and the constant temperature starting point is marked as the constant temperature duration value HC, and the sum of the areas of all closed areas formed by the part of the test curve between the constant temperature starting point and the constant temperature ending point and the target dividing line is marked as the constant temperature effect value HX; the test data set of the stable test process is composed of the heating efficiency value JX, the constant temperature duration value HC and the constant temperature effect value HX.

[0014] Furthermore, the marking process of the adjustment interval includes: marking a stable test process in which the external temperature value is within the external temperature interval as a matching process of the external temperature interval, calculating the average value of the test coefficient CS of all matching processes in the same external temperature interval and marking it as the test performance value of the external temperature interval, obtaining the test performance threshold through the database, and comparing the test performance value of the external temperature interval with the test performance threshold: if the test performance value is less than the test performance threshold, it is determined that the external temperature interval has constant temperature interference, and the corresponding external temperature interval is marked as an adjustment interval; if the test performance value is greater than or equal to the test performance threshold, it is determined that the external temperature interval does not have constant temperature interference.

[0015] Furthermore, the specific process of the test analysis module analyzing the test data set of the stable test process also includes: sending all adjustment intervals to the database for storage through the stable control platform; first collecting the air temperature value in the laboratory when performing the thermal cycle control of the biochemical analyzer later, and if the air temperature value in the laboratory is within the adjustment interval, first adjust the air temperature value in the laboratory, and then perform thermal cycle control.

[0016] Furthermore, the specific process of the control optimization module performing thermal cycle optimization control analysis on the biochemical analyzer includes: forming a target range with the maximum and minimum values ​​of the target temperature values ​​of all stable test processes, dividing the target range into a number of target intervals, marking the optimization methods of the target intervals, forming an optimization data set with the optimization methods of all target intervals and sending the optimization data set to the database through the stable control platform for storage, first obtaining the target temperature value of the reaction disk when performing subsequent thermal cycle control of the biochemical analyzer, calling the optimization method of the target interval to which the target temperature value belongs, and using the optimization method to heat the reaction disk of the biochemical analyzer.

[0017] Furthermore, the specific process of marking the optimization method of the target interval includes: marking the stable test process in which the target temperature value is within the target interval as the optimization process of the target interval, and marking the thermal cycle test method corresponding to the optimization process with the largest test coefficient CS value within the target interval as the optimization method of the target interval.

[0018] A method for thermal cycle stability control of a biochemical analyzer comprises the following steps:

[0019] Step 1: Conduct thermal cycle stability test analysis on the biochemical analyzer;

[0020] Step 2: Analyze the test data set of the stable test process;

[0021] Step 3: Perform thermal cycle optimization control analysis on the biochemical analyzer.

[0022] The present invention has the following beneficial effects:

[0023] 1. The stability test module can be used to perform thermal cycle stability test analysis on the biochemical analyzer. Several stability test processes are performed within the test cycle. The various thermal cycle parameters in the stability test process are statistically analyzed to obtain a test data set, providing data support for the test analysis process;

[0024] 2. The test analysis module can analyze the test data set of the stable test process, evaluate the overall constant temperature effect by combining the external temperature interval obtained by dividing the external temperature value, determine the constant temperature interference according to the test performance value of the external temperature interval, mark the adjustment interval with constant temperature interference, and improve the external environment temperature during the subsequent operation of the biochemical analyzer;

[0025] 3. The control optimization module can be used to perform thermal cycle optimization control analysis on the biochemical analyzer. The test coefficients of all stable test processes in the target range are marked with optimization methods. When performing subsequent thermal cycle control of the biochemical analyzer, the optimization method can be screened according to the target temperature value, and the optimization method can be used for thermal cycle control to ensure the constant temperature effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0027] Figure 1 is a system block diagram of Embodiment 1 of the present invention;

[0028] Figure 2 This is a flow chart of the method of Embodiment 2 of the present invention. DETAILED DESCRIPTION

[0029] The technical solution of the present invention will be clearly and completely described below in conjunction with the embodiments. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0030] Embodiment 1: Figure 1 As shown, a biochemical analyzer thermal cycle stability control system includes a stability control platform, and the stability control platform is communicatively connected with a stability test module, a test analysis module, a control optimization module and a database.

[0031] The stability test module is used to perform thermal cycle stability test analysis on the biochemical analyzer: generate a test cycle, execute several complete stability test processes within the test cycle, and randomly match a target temperature value for each stability test process. The target temperature value should be selected and matched within the temperature range of the biochemical analyzer reaction disk; before the stability test process begins, a constant temperature mode is randomly assigned as a thermal cycle test mode. During the stability test process, the thermal cycle test mode is used to heat the reaction disk of the biochemical analyzer. The constant temperature modes include water bath circulation direct heating, constant temperature liquid circulation indirect heating, dry constant temperature heating, and microwave constant temperature heating; water bath circulation direct heating is to maintain constant temperature by means of a water bath, and a water bath system with a large heat capacity is used to maintain a constant temperature after adding refrigerated reagents; constant temperature liquid circulation indirect heating is to maintain a constant temperature inside the instrument by means of constant temperature liquid circulation indirect heating, and the constant temperature liquid is used to flow in a closed circulation system; dry constant temperature heating does not require a liquid medium and maintains temperature stability through other physical methods (such as air or gas); microwave constant temperature heating uses microwave technology for constant temperature heating, and this method heats quickly and evenly.

[0032] The surface temperature value of the reaction disk of the biochemical analyzer is obtained in real time during the stable test process and marked as the reaction value; the target temperature high value MWmax and the target temperature low value MWmin are obtained by the formula MWmax=t1×MW and MWmin=t2×MW, wherein t1 and t2 are both proportional coefficients, and 1.05≤t1≤1.15, 0.85≤t2≤0.95, and MW is the target temperature value of the stable test process; a rectangular coordinate system is established with the test time as the X-axis and the surface temperature value of the reaction disk as the Y-axis, and a low-temperature dividing line, a target dividing line and a high-temperature dividing line are made in the first quadrant of the rectangular coordinate system, and the low-temperature dividing line, the target dividing line and the high-temperature dividing line are all rays parallel to the X-axis, and the endpoint coordinates of the low-temperature dividing line, the target dividing line and the high-temperature dividing line are (0, MWmin), (0, MW) and (0, MWmax), respectively.

[0033] In a rectangular coordinate system, a test curve is drawn according to the execution time of the stable test process and the real-time temperature value of the reaction disk during the stable test process, and the first intersection point of the test curve with the low temperature dividing line is marked as the constant temperature starting point, and the second intersection point of the test curve with the low temperature dividing line or the first intersection point with the high temperature dividing line is marked as the constant temperature ending point;

[0034] The stability test process is terminated at the constant temperature end point. When the stability test process is terminated, the horizontal axis value of the constant temperature starting point is marked as the heating efficiency value JX, the horizontal axis difference between the constant temperature end point and the constant temperature starting point is marked as the constant temperature duration value HC, and the sum of the areas of all closed areas formed by the part of the test curve between the constant temperature starting point and the constant temperature end point and the target dividing line is marked as the constant temperature effect value HX; the heating efficiency value JX, the constant temperature duration value HC and the constant temperature effect value HX constitute the test data set of the stability test process, and all the test data sets of the stability test process are sent to the test analysis module through the stability control platform; the biochemical analyzer is subjected to thermal cycle stability test analysis, and several stability test processes are executed within the test cycle. The various thermal cycle parameters in the stability test process are statistically analyzed to obtain the test data set, providing data support for the test analysis process.

[0035] The test analysis module is used to analyze the test data set of the stable test process: the test coefficient CS of the stable test process is obtained by the formula CS = a1 × HC-a2 × JC-a3 × HX, where a1, a2 and a3 are all proportional coefficients, and a1>a2>a3>1; the laboratory air temperature value at the beginning of the stable test process is obtained and marked as the external temperature value of the stable test process, the external temperature range is composed of the maximum and minimum values ​​of the external temperature values ​​of all stable test processes, the external temperature range is divided into several external temperature intervals, and the stable test process with an external temperature value within the external temperature interval is marked as a matching process of the external temperature interval.

[0036] The average value of the test coefficient CS of all matching processes in the same external temperature interval is calculated and marked as the test performance value of the external temperature interval. The test performance threshold is obtained through the database, and the test performance value of the external temperature interval is compared with the test performance threshold: if the test performance value is less than the test performance threshold, the external temperature interval is determined to have constant temperature interference, and the corresponding external temperature interval is marked as an adjustment interval; if the test performance value is greater than or equal to the test performance threshold, the external temperature interval is determined to have no constant temperature interference; all adjustment intervals are sent to the database for storage through the stable control platform; when the thermal cycle control of the biochemical analyzer is performed subsequently, the air temperature value in the laboratory is first collected. If the air temperature value in the laboratory is within the adjustment interval, the air temperature value in the laboratory is adjusted first, and then the thermal cycle control is performed; the test data set of the stable test process is analyzed, and the overall constant temperature effect is evaluated in combination with the external temperature interval obtained by dividing the external temperature value, the constant temperature interference is determined according to the test performance value of the external temperature interval, and the adjustment interval with constant temperature interference is marked to improve the external environment temperature during the subsequent operation of the biochemical analyzer.

[0037] The control optimization module is used to perform thermal cycle optimization control analysis on the biochemical analyzer: the maximum and minimum values ​​of the target temperature values ​​of all stable test processes constitute the target range, the target range is divided into several target intervals, the stable test process with the target temperature value within the target interval is marked as the optimization process of the target interval, the thermal cycle test method corresponding to the optimization process with the largest test coefficient CS value within the target interval is marked as the optimization method of the target interval, the optimization methods of all target intervals constitute an optimization data set and the optimization data set is sent to the database through the stable control platform for storage, when the thermal cycle control of the biochemical analyzer is subsequently performed, the target temperature value of the reaction disk is first obtained, the optimization method of the target interval to which the target temperature value belongs is called, and the reaction disk of the biochemical analyzer is heated by the optimization method; the thermal cycle optimization control analysis of the biochemical analyzer is performed, and the optimization method is marked by the test coefficients of all stable test processes within the target interval. When the thermal cycle control of the biochemical analyzer is subsequently performed, the optimization method can be screened according to the target temperature value, and the optimization method can be used for thermal cycle control to ensure the constant temperature effect.

[0038] Embodiment 2: Figure 2 As shown, a method for thermal cycle stability control of a biochemical analyzer comprises the following steps:

[0039] Step 1: Perform thermal cycle stability test analysis on the biochemical analyzer: generate a test cycle, execute several complete stability test processes within the test cycle, and obtain a test data set when the stability test process ends;

[0040] Step 2: Analyze the test data set of the stable test process: perform numerical calculation on the test data set to obtain the test coefficient CS of the stable test process; obtain the laboratory air temperature value at the start of the stable test process and mark it as the external temperature value of the stable test process. The external temperature range is composed of the maximum and minimum values ​​of the external temperature values ​​of all stable test processes. The external temperature range is divided into several external temperature intervals, and the adjustment intervals in the external temperature intervals are marked according to the test coefficient CS;

[0041] Step 3: Perform thermal cycle optimization control analysis on the biochemical analyzer: The target range is composed of the maximum and minimum values ​​of the target temperature values ​​of all stable test processes, and the target range is divided into several target intervals, and the optimization method of the target interval is marked.

[0042] A biochemical analyzer thermal cycle stability control method and system are provided. When working, a test cycle is generated, several complete stability test processes are executed within the test cycle, and a test data set is obtained when the stability test process is terminated; the test data set is numerically calculated to obtain a test coefficient CS of the stability test process; the laboratory air temperature value at the start of the stability test process is obtained and marked as the external temperature value of the stability test process, the external temperature range is composed of the maximum and minimum values ​​of the external temperature values ​​of all the stability test processes, the external temperature range is divided into several external temperature intervals, and the adjustment intervals in the external temperature intervals are marked according to the test coefficient CS; the target range is composed of the maximum and minimum values ​​of the target temperature values ​​of all the stability test processes, the target range is divided into several target intervals, and the optimization method of the target interval is marked.

[0043] The above contents are merely examples and explanations of the structure of the present invention. The technicians in this technical field may make various modifications or additions to the specific embodiments described or replace them in a similar manner. As long as they do not deviate from the structure of the invention or exceed the scope defined by the claims, they should all fall within the protection scope of the present invention.

[0044] The above formulas are obtained by collecting a large amount of data for software simulation and selecting a formula close to the real value. The coefficients in the formula are set by technicians in this field according to the actual situation; for example: formula CS = a1×HC-a2×JC-a3×HX; technicians in this field collect multiple groups of sample data and set corresponding test coefficients for each group of sample data; substitute the set test coefficients and the collected sample data into the formula, any three formulas constitute a three-variable linear equation group, screen the calculated coefficients and take the average, and obtain the values ​​of a1, a2 and a3, which are 4.37, 2.62 and 2.12 respectively;

[0045] The size of the coefficient is to quantify each parameter to obtain a specific value for subsequent comparison. The size of the coefficient depends on the amount of sample data and the preliminary setting of the corresponding test coefficient for each set of sample data by technical personnel in this field; as long as it does not affect the proportional relationship between the parameter and the quantified value, such as the test coefficient is proportional to the value of the constant temperature duration.

[0046] In the description of this specification, the description with reference to the terms "one embodiment", "example", "specific example", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0047] The preferred embodiments of the present invention disclosed above are only used to help explain the present invention. The preferred embodiments do not describe all the details in detail, nor do they limit the invention to only specific implementation methods. Obviously, many modifications and changes can be made according to the content of this specification. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the present invention, so that those skilled in the art can understand and use the present invention well. The present invention is limited only by the claims and their full scope and equivalents.

Claims

1. A biochemical analyzer thermal cycle stability control system, characterized in that: It includes a stable control platform, which is communicatively connected with a stable test module, a test analysis module, a control optimization module and a database; The stability test module is used to perform a thermal cycle stability test analysis on the biochemical analyzer: generate a test cycle, execute several complete stability test processes within the test cycle, randomly match a target temperature value for each stability test process, and the target temperature value should be selected and matched within the temperature range of the biochemical analyzer reaction disk; before the start of the stability test process, randomly assign a constant temperature mode as a thermal cycle test mode, and use the thermal cycle test mode to heat the reaction disk of the biochemical analyzer during the stability test process; obtain a test data set of the stability test process at the end of the stability test process, and send all the test data sets of the stability test process to the test analysis module through the stability control platform; The test analysis module is used to analyze the test data set of the stable test process: perform numerical calculation on the test data set to obtain the test coefficient CS of the stable test process, obtain the laboratory air temperature value at the start of the stable test process and mark it as the external temperature value of the stable test process, form the external temperature range by the maximum and minimum values ​​of the external temperature values ​​of all stable test processes, divide the external temperature range into several external temperature intervals, and mark the adjustment intervals in the external temperature intervals; The control optimization module is used to perform thermal cycle optimization control analysis on the biochemical analyzer.

2. A biochemical analyzer thermal cycle stability control system according to claim 1, characterized in that: The execution process of the stable test process includes: obtaining the surface temperature value of the reaction disk of the biochemical analyzer in real time and marking it as the reaction value; obtaining the target temperature high value MWmax and the target temperature low value MWmin through the formula MWmax=t1×MW and MWmin=t2×MW, wherein t1 and t2 are both proportional coefficients, and 1.05≤t1≤1.15, 0.85≤t2≤0.95, and MW is the target temperature value of the stable test process; establishing a rectangular coordinate system with the test time as the X-axis and the reaction disk surface temperature value as the Y-axis, and making a low temperature boundary line, a target boundary line and a high temperature boundary line in the first quadrant of the rectangular coordinate system. line, the low temperature dividing line, the target dividing line and the high temperature dividing line are all rays parallel to the X-axis, and the endpoint coordinates of the low temperature dividing line, the target dividing line and the high temperature dividing line are (0, MWmin), (0, MW) and (0, MWmax) respectively; in the rectangular coordinate system, a test curve is drawn according to the execution time of the stable test process and the real-time temperature value of the reaction disk during the stable test process, the first intersection point of the test curve with the low temperature dividing line is marked as the constant temperature starting point, and the second intersection point of the test curve with the low temperature dividing line or the first intersection point with the high temperature dividing line is marked as the constant temperature ending point; the stable test process ends at the constant temperature ending point.

3. A biochemical analyzer thermal cycle stability control system according to claim 2, characterized in that: The process of acquiring the test data set of the stable test process includes: when the stable test process terminates, the horizontal axis value of the constant temperature starting point is marked as the heating efficiency value JX, the horizontal axis difference between the constant temperature ending point and the constant temperature starting point is marked as the constant temperature duration value HC, and the sum of the areas of all closed areas formed by the part of the test curve between the constant temperature starting point and the constant temperature ending point and the target dividing line is marked as the constant temperature effect value HX; the test data set of the stable test process is composed of the heating efficiency value JX, the constant temperature duration value HC and the constant temperature effect value HX.

4. A biochemical analyzer thermal cycle stability control system according to claim 3, characterized in that: The marking process of the adjustment interval includes: marking the stable test process in which the external temperature value is within the external temperature interval as the matching process of the external temperature interval, calculating the average value of the test coefficient CS of all matching processes in the same external temperature interval and marking it as the test performance value of the external temperature interval, obtaining the test performance threshold through the database, and comparing the test performance value of the external temperature interval with the test performance threshold: if the test performance value is less than the test performance threshold, it is determined that the external temperature interval has constant temperature interference, and the corresponding external temperature interval is marked as the adjustment interval; if the test performance value is greater than or equal to the test performance threshold, it is determined that the external temperature interval does not have constant temperature interference.

5. A biochemical analyzer thermal cycle stability control system according to claim 4, characterized in that: The specific process of the test analysis module analyzing the test data set of the stable test process also includes: sending all adjustment intervals to the database for storage through the stable control platform; first collecting the air temperature value in the laboratory when performing the thermal cycle control of the biochemical analyzer later, and if the air temperature value in the laboratory is within the adjustment interval, first adjust the air temperature value in the laboratory, and then perform thermal cycle control.

6. A biochemical analyzer thermal cycle stability control system according to claim 5, characterized in that: The specific process of the control optimization module performing thermal cycle optimization control analysis on the biochemical analyzer includes: forming a target range from the maximum and minimum values ​​of the target temperature values ​​of all stable test processes, dividing the target range into several target intervals, marking the optimization methods of the target intervals, forming an optimization data set from the optimization methods of all target intervals and sending the optimization data set to the database through the stable control platform for storage, first obtaining the target temperature value of the reaction disk when performing subsequent thermal cycle control of the biochemical analyzer, calling the optimization method of the target interval to which the target temperature value belongs, and using the optimization method to heat the reaction disk of the biochemical analyzer.

7. A biochemical analyzer thermal cycle stability control system according to claim 6, characterized in that: The specific process of marking the optimization method of the target interval includes: marking the stable test process in which the target temperature value is within the target interval as the optimization process of the target interval, and marking the thermal cycle test method corresponding to the optimization process with the largest test coefficient CS value within the target interval as the optimization method of the target interval.

8. A method for controlling thermal cycle stability of a biochemical analyzer, characterized in that: The following steps are involved: Step 1: Conduct thermal cycle stability test analysis on the biochemical analyzer; Step 2: Analyze the test data set of the stable test process; Step 3: Perform thermal cycle optimization control analysis on the biochemical analyzer.

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