Temperature error detection system adaptive to temperature controller

Abstract

The invention belongs to the field of temperature detection, relates to a data analysis technology, is used for solving the problem that an existing temperature controller cannot reduce the error influence through a temperature error test, and particularly relates to a temperature error detection system adaptive to a temperature controller. Comprising an error test module, an error evaluation module, an error analysis module and an operation optimization module which are connected in sequence, and the error evaluation module, the error analysis module and the operation optimization module are in communication connection with a database; the error test module is used for marking the temperature controller subjected to temperature error test analysis as a test object and sending detection data of all acquisition time points in the test process to the error evaluation module; the temperature error of the temperature controller can be tested and analyzed, temperature compensation in different environments is tested in a double-probe mode, the control accuracy of the temperature controller is improved, errors caused by environmental factors are reduced to the minimum, and therefore the more accurate room temperature is obtained.

Description

Technical Field

[0001] The present invention belongs to the field of temperature detection and relates to data analysis technology, in particular to a temperature error detection system adapted for a temperature controller. Background Art

[0002] A thermostat is an automatic control element that automatically adjusts the operation of equipment according to changes in ambient temperature. It is also called a temperature control switch, temperature protector or temperature controller. Its working principle is to sample and monitor the ambient temperature through a temperature sensor. When the ambient temperature is higher than the set value, the control circuit is activated to achieve temperature control and energy saving effects. Existing thermostat panels all use a single NTC resistor or digital sensor for temperature measurement. However, as current thermostats become increasingly powerful, they use more advanced MCUs, resulting in more complex circuits and greater heat generation. The heat generated by the thermostat itself affects the temperature measurement error, causing the measured temperature to be too high. At the same time, existing thermostats cannot reduce the error impact through temperature error testing, nor can they optimize the product and operation control of the thermostat based on the test results.

[0003] In response to the above technical problems, this application proposes a solution. Summary of the Invention

[0004] The object of the present invention is to provide a temperature error detection system adapted for a thermostat, which is used to solve the problem that existing thermostats cannot reduce the error impact through temperature error testing; The technical problem to be solved by the present invention is: how to provide a temperature error detection system adapted to a temperature controller that can reduce the influence of errors through temperature error testing.

[0005] The purpose of the present invention can be achieved through the following technical solutions: A temperature error detection system adapted for a thermostat comprises an error testing module, an error evaluation module, an error analysis module, and an operation optimization module connected in sequence, wherein the error evaluation module, the error analysis module, and the operation optimization module are all communicatively connected to a database; The error testing module marks the thermostat to be tested for temperature error as a test object, places the test object in a temperature-variable test environment for testing, sets several acquisition time points at equal time intervals during the test, obtains test data from the test object at the acquisition time points, and sends the test data from all acquisition time points during the test to the error evaluation module; The error assessment module marks the absolute value of the difference between the output value SC and the external temperature value WW at the acquisition time point as the error value of the acquisition time point, and uses the error value to mark the acquisition time point as an interference time point or a qualified time point. The ratio of the number of interference time points to the total number of acquisition time points during the test process is marked as the interference coefficient of the test process, and the interference coefficient is used to determine whether the detection error status of the test object during the test process meets the requirements; The error analysis module obtains the fatigue interference value and the heating interference value of the test object during the test, compares the fatigue interference value with the heating interference value, and marks the interference factor based on the comparison result; The operation optimization module is used to perform operation optimization analysis on the temperature controller.

[0006] Furthermore, the test object includes two temperature probes for respectively collecting the external air temperature and the internal circuit board surface temperature. The detection data of the test object include an internal temperature value NW, an external temperature value WW, and an output value CS. The process of acquiring the detection data includes: marking the external air temperature collected by the test object as the external temperature value WW at the collection time point, marking the internal circuit board surface temperature collected by the test object as the internal temperature value NW at the collection time point, and performing numerical calculation on the external temperature value WW and the internal temperature value NW to obtain the output value SC of the test object.

[0007] Furthermore, the specific process of marking the acquisition time point as a qualified time point or an interference time point includes: obtaining an error threshold through a database, and comparing the error value of the acquisition time point with the error threshold: if the error value is less than the error threshold, it is determined that the detection error state of the acquisition time point meets the requirements, and the corresponding detection time point is marked as a qualified time point; if the error value is greater than or equal to the error threshold, it is determined that the detection error state of the acquisition time point does not meet the requirements, and the corresponding detection time point is marked as an interference time point.

[0008] Furthermore, the specific process of determining whether the detection error state of the test object during the test meets the requirements includes: obtaining the interference threshold through the database, and comparing the interference coefficient with the interference threshold: if the interference coefficient is less than the interference threshold, it is determined that the detection error state of the thermostat during the test meets the requirements, and a test pass signal is generated and sent to the mobile phone terminal of the administrator; if the interference coefficient is greater than or equal to the interference threshold, it is determined that the detection error state of the thermostat during the test does not meet the requirements, and an error analysis signal is generated and sent to the error analysis module.

[0009] Furthermore, the process of obtaining the fatigue interference value and the fever interference value of the test object during the test includes: forming an interference set from all interference time points, arranging all acquisition time points in order of execution time from earliest to latest to obtain a time series, forming a fatigue set from the L1 acquisition time points at the end of the time series, arranging all acquisition time points in order of internal temperature value NW from low to high to obtain an internal temperature sequence, and forming a fever set from the L1 acquisition time points at the end of the internal temperature sequence; marking the number of intersection elements of the interference set and the fatigue set as the fatigue interference value, and marking the number of intersection elements of the interference set and the fever set as the fever interference value.

[0010] Furthermore, the specific process of comparing the fatigue interference value with the fever interference value includes: if the fatigue interference value is greater than the fever interference value, the detection error interference factor of the test object is marked as fatigue interference, a fatigue optimization signal is generated and the fatigue optimization signal is sent to the mobile phone terminal of the administrator; otherwise, the detection error interference factor of the test object is marked as fever interference, a fever optimization signal is generated and the fever optimization signal is sent to the mobile phone terminal of the administrator.

[0011] Furthermore, the operation optimization module is used to perform operation optimization analysis on the temperature controller: the test process is divided into several test periods, and the number of acquisition time points contained in each test period is equal. The number of interference time points in the test period is marked as the operation value of the test period, and the operation values ​​of the test period are arranged in order from small to large to obtain a test sequence. The variance of all the operation values ​​in the test sequence is calculated to obtain the operation concentration value, and the relevant periods are marked by the operation concentration value. The maximum value of the external temperature value WW corresponding to the qualified time point in the relevant period is marked as the heating critical value of the relevant period; the operation optimization parameters are composed of the continuous operation time range and the heating critical value of the test object corresponding to all relevant periods; and the operation optimization parameters are sent to the database for storage.

[0012] Furthermore, the marking process of the relevant time periods includes: obtaining the operation concentration threshold through the database, and comparing the operation concentration value with the operation concentration threshold: if the operation concentration value is greater than or equal to the operation concentration threshold, the operation value ranked first in the test sequence is eliminated, and then the operation concentration value is recalculated, and so on, until the operation concentration value is less than the operation concentration threshold; if the operation concentration value is less than the operation concentration threshold, the test time periods corresponding to all eliminated operation values ​​are marked as irrelevant time periods, and the test time periods corresponding to the retained operation values ​​are marked as relevant time periods.

[0013] The present invention has the following beneficial effects: The error test module can be used to test and analyze the temperature error of the thermostat. The temperature compensation under different environments can be tested using a dual-probe method to improve the control accuracy of the thermostat and minimize the error caused by environmental factors, thereby obtaining a more accurate room temperature. The error evaluation module can evaluate and analyze the detection error status of the thermostat. It combines the output value of the thermostat and the external temperature value at all acquisition time points for comprehensive analysis. When the temperature detection error status of the thermostat is abnormal, timely feedback is provided to reduce the risk of abnormal equipment operation caused by large external air temperature detection errors. The error analysis module can analyze the interference factors of the temperature controller's detection error. Fatigue interference values ​​and heating interference values ​​are generated based on the distribution characteristics of all interference time points. The fatigue interference values ​​and heating interference values ​​are then used to mark the interference factors of the temperature controller's detection error. This provides optimization directions for the temperature controller at the production end. 4. The operation optimization module can be used to perform operation optimization analysis on the thermostat. The number of interference time points in the test period can be obtained by time period analysis. The relevant time periods and heating thresholds can be marked according to the operating values ​​of the test period. The relevant time periods and heating thresholds can be used to provide feedback on the error risks of the thermostat in subsequent use, so that manual correction and processing can be carried out in a timely manner. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. 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 any creative work.

[0015] Figure 1 This is a system block diagram of Embodiment 1 of the present invention; Figure 2 This is a flow chart of the method of embodiment 2 of the present invention. DETAILED DESCRIPTION

[0016] The technical solutions of the present invention will be clearly and completely described below with reference to the embodiments. Obviously, the embodiments described are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making any creative efforts shall fall within the scope of protection of the present invention.

[0017] Example 1: Figure 1As shown, a temperature error detection system adapted for a temperature controller includes an error testing module, an error evaluation module, an error analysis module, and an operation optimization module connected in sequence. The error evaluation module, the error analysis module, and the operation optimization module are all connected to a database for communication.

[0018] The error testing module is used to test and analyze the temperature error of the thermostat. The thermostat undergoing temperature error testing and analysis is marked as a test object. The test object contains two temperature probes that collect the external air temperature and the internal circuit board surface temperature, respectively. The test object is placed in a temperature-variable test environment for testing. During the test, several sampling time points are set at equal intervals. The external air temperature collected by the test object at each sampling time point is marked as the external temperature value WW, and the internal circuit board surface temperature collected by the test object at each sampling time point is marked as the internal temperature value NW. The output value SC of the test object is calculated using the formula SC = WW × 2 - NW - [(NW - WW) × c1], where c1 is a correction factor with a value range of (1.25, 1.35). The internal temperature values ​​NW, external temperature values ​​WW, and output value SC at all sampling time points during the test are sent to the error evaluation module. Using a dual-probe approach, temperature compensation is tested in different environments to improve the control accuracy of the thermostat and minimize errors caused by environmental factors, thereby obtaining a more accurate room temperature.

[0019] The error evaluation module is used to evaluate and analyze the detection error state of the thermostat: the absolute value of the difference between the output value SC and the external temperature value WW at the acquisition time point is marked as the error value of the acquisition time point, the error threshold is obtained through the database, and the error value of the acquisition time point is compared with the error threshold: if the error value is less than the error threshold, it is determined that the detection error state of the acquisition time point meets the requirements, and the corresponding detection time point is marked as a qualified time point; if the error value is greater than or equal to the error threshold, it is determined that the detection error state of the acquisition time point does not meet the requirements, and the corresponding detection time point is marked as an interference time point; the ratio of the number of interference time points in the test process to the total number of acquisition time points is marked as the interference coefficient of the test process. The interference threshold is obtained through the database, and the interference coefficient is compared with the interference threshold: if the interference coefficient is less than the interference threshold, it is determined that the detection error state of the thermostat during the test meets the requirements, and a test pass signal is generated and sent to the administrator's mobile terminal; if the interference coefficient is greater than or equal to the interference threshold, it is determined that the detection error state of the thermostat during the test does not meet the requirements, and an error analysis signal is generated and sent to the error analysis module; a comprehensive analysis is performed based on the output value of the thermostat at all acquisition time points and the external temperature value, and timely feedback is provided when the temperature detection error state of the thermostat is abnormal, reducing the risk of abnormal equipment operation when the external air temperature detection error is large.

[0020] The error analysis module is used to analyze the interference factors of the temperature controller's detection error: all interference time points constitute an interference set, all acquisition time points are arranged in order of execution time from first to last to obtain a time series, the L1 acquisition time points at the end of the time series constitute a fatigue set, all acquisition time points are arranged in order of internal temperature value NW from low to high to obtain an internal temperature sequence, the L1 acquisition time points at the end of the internal temperature sequence constitute a fever set, L1 is a numerical constant, and the specific value of L1 is set by the management personnel; the number of elements in the intersection of the interference set and the fatigue set is marked as the fatigue interference value, and the number of elements in the intersection of the interference set and the fever set is marked as the fatigue interference value. The quantity is marked as a heating interference value, and the fatigue interference value is compared with the heating interference value: if the fatigue interference value is greater than the heating interference value, the detection error interference factor of the test object is marked as fatigue interference, a fatigue optimization signal is generated, and the fatigue optimization signal is sent to the manager's mobile terminal; otherwise, the detection error interference factor of the test object is marked as heating interference, a heating optimization signal is generated, and the heating optimization signal is sent to the manager's mobile terminal; fatigue interference value and heating interference value are generated according to the distribution characteristics of all interference time points, and then the detection error interference factor of the thermostat is marked according to the fatigue interference value and the heating interference value, so as to provide the optimization direction of the thermostat at the production end.

[0021] The operation optimization module is used to perform operation optimization analysis on the thermostat: the test process is divided into several test periods, and the number of acquisition time points contained in each test period is equal. The number of interference time points in the test period is marked as the operation value of the test period, and the operation values ​​of the test period are arranged in order from small to large to obtain a test sequence. The variance of all the operation values ​​in the test sequence is calculated to obtain the operation concentration value, and the operation concentration threshold is obtained through the database. The operation concentration value is compared with the operation concentration threshold: if the operation concentration value is greater than or equal to the operation concentration threshold, the operation value ranked first in the test sequence is eliminated, and then the operation concentration value is recalculated, and so on, until the operation concentration value is less than the operation concentration threshold; if the operation concentration value is less than the operation concentration threshold, the test periods corresponding to all eliminated operation values ​​are marked as irrelevant periods, and the test periods corresponding to the retained operation values ​​are marked as relevant periods. The maximum value of the external temperature value WW corresponding to the qualified time point in the relevant time period is marked as the heating critical value of the relevant time period; the operation optimization parameters are composed of the continuous operation time range and the heating critical value of the test object corresponding to all relevant time periods; the operation optimization parameters are sent to the database for storage; the number of interference time points in the test period is obtained in a time period analysis manner, and the relevant time periods and heating critical values ​​are marked according to the operation values ​​of the test period. The error risk of the thermostat in the subsequent use process can be fed back through the relevant time periods and heating critical values, so as to carry out manual correction and processing in time. It should be noted that the error risk mentioned in this application indicates the normal operation risk of the thermostat when the external air temperature value detected by the thermostat deviates greatly from the actual ambient temperature value, that is, the output error of the thermostat has been compensated and optimized through the output value, but when the external environment is abnormal or the internal heating is abnormal, it will affect the normal operation of the thermostat.

[0022] Example 2: Figure 2 As shown, a temperature error detection method suitable for a thermostat includes the following steps: Step P1: Testing and analyzing the temperature error of the thermostat: Mark the thermostat to be tested and analyzed as a test object, set several collection time points with equal time intervals during the test process, and collect various temperature data of the test object at the collection time points; Step P2: Evaluate and analyze the detection error status of the thermostat: mark the absolute value of the difference between the output value SC and the external temperature value WW at the acquisition time point as the error value at the acquisition time point. Use the error value to mark the acquisition time point as a qualified time point or an interference time point. Use the marking result to determine whether the detection error status of the thermostat during the test meets the requirements; Step P3: Analyze the interference factors of the thermostat's detection error: Generate an interference set, a fatigue set, and a heating set, compare them to obtain fatigue interference values ​​and heating interference values, and mark the detection error interference factors of the test object based on the comparison results of the fatigue interference values ​​and heating interference values; Step P4: Performing operation optimization analysis on the thermostat: dividing the test process into several test periods, screening relevant periods in the test period and marking the heating critical values ​​of the relevant periods.

[0023] A temperature error detection system adapted for a thermostat, when in operation, marks a thermostat undergoing temperature error testing and analysis as a test object, sets a number of acquisition time points at equal time intervals during the test, and collects various temperature data of the test object at the acquisition time points; marks the absolute value of the difference between an output value SC and an external temperature value WW at the acquisition time point as the error value of the acquisition time point, and marks the acquisition time point as a qualified time point or an interference time point based on the error value, and determines whether the detection error state of the thermostat during the test meets the requirements based on the marking result; generates an interference set, a fatigue set, and a heating set, and compares them to obtain a fatigue interference value and a heating interference value, and marks the detection error interference factor of the test object based on the comparison result of the fatigue interference value and the heating interference value; divides the test process into a number of test periods, screens relevant periods in the test period, and marks the heating critical values ​​of the relevant periods.

[0024] The above content is merely an example and explanation of the structure of the present invention. Those skilled in the art may make various modifications or additions to the described specific embodiments 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 scope of protection of the present invention.

[0025] Throughout this specification, references to terms such as "one embodiment," "example," or "specific example" indicate that the specific features, structures, materials, or characteristics described in conjunction with that embodiment or example are included in at least one embodiment or example of the present invention. In this specification, schematic representations of these terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

[0026] The preferred embodiments of the present invention disclosed above are intended only to help illustrate the present invention. These preferred embodiments do not exhaustively describe all details, nor do they limit the present invention to specific embodiments. Obviously, many modifications and variations are possible based on the contents of this specification. These embodiments are selected and described in detail in this specification to better explain the principles and practical applications of the present invention, thereby enabling those skilled in the art to better understand and utilize the present invention. The present invention is limited only by the claims and their full scope and equivalents.

Claims

1. A temperature error detection system adapted for a thermostat, characterized in that: It includes an error testing module, an error evaluation module, an error analysis module and an operation optimization module connected in sequence, wherein the error evaluation module, the error analysis module and the operation optimization module are all connected to the database in communication; The error testing module marks the thermostat to be tested for temperature error as a test object, places the test object in a temperature-variable test environment for testing, sets several acquisition time points at equal time intervals during the test, obtains test data from the test object at the acquisition time points, and sends the test data from all acquisition time points during the test to the error evaluation module; The error evaluation module marks the absolute value of the difference between the output value SC and the external temperature value WW at the acquisition time point as the error value of the acquisition time point, and marks the acquisition time point as an interference time point or a qualified time point based on the error value; The ratio of the number of interference time points to the total number of acquisition time points during the test process is marked as the interference coefficient of the test process, and the interference coefficient is used to determine whether the detection error state of the test object during the test process meets the requirements; The error analysis module obtains the fatigue interference value and the heating interference value of the test object during the test, compares the fatigue interference value with the heating interference value, and marks the interference factor based on the comparison result; The operation optimization module is used to perform operation optimization analysis on the temperature controller.

2. A temperature error detection system adapted for a thermostat according to claim 1, characterized in that: The test object includes two temperature probes that respectively collect the external air temperature and the internal circuit board surface temperature. The detection data of the test object include an internal temperature value NW, an external temperature value WW, and an output value CS. The process of acquiring the detection data includes: marking the external air temperature collected by the test object as the external temperature value WW at the collection time point, marking the internal circuit board surface temperature collected by the test object as the internal temperature value NW at the collection time point, and performing numerical calculations on the external temperature value WW and the internal temperature value NW to obtain the output value SC of the test object.

3. A temperature error detection system adapted for a thermostat according to claim 2, characterized in that: The specific process of marking a collection time point as a qualified time point or an interference time point includes: obtaining an error threshold through a database, and comparing the error value of the collection time point with the error threshold: if the error value is less than the error threshold, it is determined that the detection error state of the collection time point meets the requirements, and the corresponding detection time point is marked as a qualified time point; if the error value is greater than or equal to the error threshold, it is determined that the detection error state of the collection time point does not meet the requirements, and the corresponding detection time point is marked as an interference time point.

4. A temperature error detection system adapted for a thermostat according to claim 3, characterized in that: The specific process of determining whether the detection error state of the test object during the test meets the requirements includes: obtaining the interference threshold through the database, and comparing the interference coefficient with the interference threshold: if the interference coefficient is less than the interference threshold, it is determined that the detection error state of the thermostat during the test meets the requirements, and a test pass signal is generated and sent to the mobile phone terminal of the administrator; if the interference coefficient is greater than or equal to the interference threshold, it is determined that the detection error state of the thermostat during the test does not meet the requirements, and an error analysis signal is generated and sent to the error analysis module.

5. A temperature error detection system adapted for a thermostat according to claim 4, characterized in that: The process of obtaining the fatigue interference value and fever interference value of the test object during the test includes: forming an interference set from all interference time points, arranging all acquisition time points in order of execution time from earliest to latest to obtain a time series, forming a fatigue set from the last L1 acquisition time points in the time series, arranging all acquisition time points in order of internal temperature value NW from low to high to obtain an internal temperature sequence, and forming a fever set from the last L1 acquisition time points in the internal temperature sequence; marking the number of elements in the intersection of the interference set and the fatigue set as the fatigue interference value, and marking the number of elements in the intersection of the interference set and the fever set as the fever interference value.

6. A temperature error detection system adapted for a thermostat according to claim 5, characterized in that: The specific process of comparing the fatigue interference value with the fever interference value includes: if the fatigue interference value is greater than the fever interference value, the detection error interference factor of the test object is marked as fatigue interference, a fatigue optimization signal is generated and the fatigue optimization signal is sent to the mobile phone terminal of the administrator; otherwise, the detection error interference factor of the test object is marked as fever interference, a fever optimization signal is generated and the fever optimization signal is sent to the mobile phone terminal of the administrator.

7. A temperature error detection system adapted for a thermostat according to claim 6, characterized in that: The operation optimization module is used to perform operation optimization analysis on the thermostat: the test process is divided into several test periods, and the number of acquisition time points contained in each test period is equal. The number of interference time points in the test period is marked as the operation value of the test period. The operation values ​​of the test period are arranged in order from small to large to obtain a test sequence. The variance of all the operation values ​​in the test sequence is calculated to obtain the operation concentration value. The relevant periods are marked by the operation concentration value. The maximum value of the external temperature value WW corresponding to the qualified time point in the relevant period is marked as the heating critical value of the relevant period; the operation optimization parameters are composed of the continuous operation time range and the heating critical value of the test object corresponding to all relevant periods; and the operation optimization parameters are sent to the database for storage.

8. The temperature error detection system adapted for a thermostat according to claim 7, characterized in that: The marking process of the relevant time periods includes: obtaining the running concentration threshold through the database, and comparing the running concentration value with the running concentration threshold: if the running concentration value is greater than or equal to the running concentration threshold, the running value ranked first in the test sequence is eliminated, and then the running concentration value is recalculated, and so on, until the running concentration value is less than the running concentration threshold; if the running concentration value is less than the running concentration threshold, the test time periods corresponding to all eliminated running values ​​are marked as irrelevant time periods, and the test time periods corresponding to the retained running values ​​are marked as relevant time periods.

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