Temperature stability determination method in temperature rise detection and temperature rise automatic detection device

Abstract

The present application belongs to the technical field of temperature rise detection, and provides a temperature stability determination method in temperature rise detection and a temperature rise automatic detection device, comprising the steps of: obtaining equipment temperature information collected by a temperature collector and generating corresponding temperature waveforms; intercepting temperature waveforms corresponding to interval time according to interval time set by a user; determining whether the temperature waveforms corresponding to the interval time meet preset stability conditions; and determining that the equipment is in a temperature stable state when any of the preset stability conditions is met. The present application has the advantage that the temperature stability determination method can accurately determine the temperature stability of the temperature waveform curve of the equipment without the need for manual reading of the temperature curve to determine the temperature stable state, thereby saving the detection time of the user and improving the detection efficiency.

Description

Technical Field

[0001] The present invention relates to the technical field of temperature rise detection, and in particular to a method for determining temperature stability in temperature rise detection and an automatic temperature rise detection device. Background Art

[0002] Temperature rise testing is a key component of product performance testing. It measures a product's operating parameters at different temperatures to better assess its lifespan. Currently, temperature rise testing is performed at room temperature, manually switching the input voltage and load to achieve the desired test conditions. After collecting temperature data, the temperature rise is calculated based on the collected temperature data and the ambient temperature. Furthermore, temperature data is manually read to verify whether the device has reached a stable state. Summary of the Invention

[0003] The purpose of the present invention is to provide a method for determining temperature stability in temperature rise detection and an automatic temperature rise detection device to solve the problem of temperature rise test automation;

[0004] In order to achieve the above object, the technical solution adopted by the present invention is:

[0005] A method for determining temperature stability in temperature rise detection comprises the steps of:

[0006] Obtain the device temperature information collected by the temperature collector and generate the corresponding temperature waveform;

[0007] According to the interval time set by the user, the temperature waveform of the corresponding interval time is intercepted;

[0008] It is determined whether the temperature waveform of the corresponding interval time meets the preset stability conditions. When any preset stability condition is met, it is determined that the device is in a temperature stable state.

[0009] Furthermore, the preset stability conditions include: fixed value stability conditions and periodic stability conditions;

[0010] The fixed value stability condition is used to determine whether the temperature waveform fluctuates around a preset fixed temperature value;

[0011] The periodic stability condition is used to determine whether the periodically changing temperature waveform tends to be stable within the corresponding interval time.

[0012] Furthermore, the periodic stability conditions include:

[0013] Selecting the temperature values ​​of the first ten points of the temperature waveform corresponding to the time interval and the temperature value of the second half of the waveform, the average temperature value of the ten points is between the maximum and minimum values ​​of the temperature value of the second half of the waveform;

[0014] Calculate the temperature waveform slope at the corresponding time interval and take its absolute value, so that the absolute value of the slope is less than the preset value;

[0015] After removing the DC component, the temperature waveform of the corresponding interval time is divided into four parts. The difference between the maximum and minimum temperature values ​​in each part is calculated respectively. The four differences are sorted from small to large. The second and fourth values ​​after sorting are selected to determine whether the fourth value satisfies the preset functional relationship with the second value.

[0016] The present invention also provides a temperature rise automatic detection device, comprising:

[0017] A temperature rise detection system, wherein the method for determining temperature stability in temperature rise detection according to claim 1 is provided, and the temperature rise detection system is installed in a computer;

[0018] A temperature collector, one end of which is connected to the computer and the other end is connected to the device through a switch box;

[0019] The power supply is connected to the computer and the device respectively, and sends real-time voltage values ​​to the computer through the power meter.

[0020] Furthermore, the temperature rise detection system includes:

[0021] Parameter setting module, used to set the parameters of the temperature collector, switch channels and detection parameters of the equipment;

[0022] A detection module, which is used to test the temperature rise of the device through a preset temperature rise automatic detection method;

[0023] The data processing module is used to process the device temperature information collected by the temperature collector and obtain the temperature rise data of the device's preset working voltage through calculation.

[0024] The detection information display module is used to display the temperature rise data of the equipment and the real-time temperature curve of the equipment.

[0025] Furthermore, the preset temperature rise automatic detection method includes the steps of:

[0026] Obtain the parameters and switch channel of the temperature collector selected by the user, and activate the switch on the corresponding switch channel, wherein the switch channel is electrically connected to the device;

[0027] Start the power supply according to the required set detection parameters to put the equipment into the preset working state;

[0028] The temperature information of the device is collected in real time through a temperature collector. The test is ended after the device is determined to be in a temperature stable state according to the preset stability conditions, and the temperature rise data of the device is obtained.

[0029] Furthermore, the data processing module includes:

[0030] a waveform acquisition unit, configured to acquire the temperature information of the equipment collected by the temperature collector and generate a corresponding temperature waveform;

[0031] a waveform intercepting unit, configured to intercept the temperature waveform corresponding to the interval time according to the interval time set by the user;

[0032] a stability judging unit, configured to judge whether the temperature waveform corresponding to the interval time meets the preset stability condition, and determine that the equipment is in a temperature stable state when any of the preset stability conditions is met.

[0033] Further, the application further comprises a report exporting module, configured to generate a detection report according to the preset template format based on the temperature rise data of the equipment and the real-time temperature curve of the equipment, and store the report to a specified location on the computer.

[0034] Compared with the prior art, the application has at least the following beneficial effects:

[0035] (1) The temperature stable state of the temperature waveform curve of the equipment can be accurately judged by the determination method of the application, without the need of reading the temperature curve manually to judge the temperature stable state, so that the user saves the detection time and improves the detection efficiency.

[0036] (2) The device can automatically perform the temperature rise detection of the equipment according to the detection parameters set by the user, stop the current test project in time after detecting that the temperature of the equipment tends to be stable, and present the detection result on the preset interface of the system, and then test the next project, so that the detection efficiency is improved. BRIEF DESCRIPTION OF DRAWINGS

[0037] Figure 1 is a flowchart of the determination method in the first embodiment of the application;

[0038] Figure 2 is an architectural schematic diagram of the detection device in the second embodiment of the application;

[0039] Figure 3 is an architectural schematic diagram of the temperature rise detection system in the second embodiment of the application;

[0040] Figure 4 is a flowchart of the preset temperature rise automatic detection method in the second embodiment of the application. DETAILED DESCRIPTION

[0041] It should be noted that all directional indications (such as up, down, left, right, front, back, etc.) in the embodiments of the application are only used to explain the relative positional relationship, movement condition, etc. between the components in a certain posture (as shown in the drawings), and if the certain posture changes, the directional indications will also change accordingly.

[0042] In addition, the terms "first", "second", "one", etc. in the present application are only for the purpose of description, and cannot be understood as indicating or implying the relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" can be explicitly or implicitly included at least one of the features. In the description of the present application, the meaning of "a plurality of" is at least two, such as two, three, etc., unless otherwise specifically limited.

[0043] In the present application, unless otherwise specifically defined and limited, the terms "connection", "fixation" and the like should be broadly understood, for example, "fixation" can be fixed connection, or detachable connection, or integral; can be mechanical connection, or electrical connection; can be directly connected, or indirectly connected through intermediate medium, can be the internal communication of two elements or the interaction relationship between two elements, unless otherwise specifically limited. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0044] In addition, the technical solutions of various embodiments of the present application can be combined with each other, but it must be based on the fact that a person skilled in the art can realize it, when the combination of technical solutions appears contradictory or unachievable, it should be considered that the combination of technical solutions does not exist, nor within the scope of protection required by the present application.

[0045] The following is a specific embodiment of the present application, and the technical solutions of the present application are further described in conjunction with the drawings, but the present application is not limited to these embodiments.

[0046] Embodiment one

[0047] As shown in the figure, the present application is a temperature stable determination method in temperature rise detection, comprising the steps of: Figure 1

[0048] A1, obtaining the equipment temperature information collected by the temperature collector, and generating the corresponding temperature waveform;

[0049] A2, according to the interval time set by the user, intercepting the temperature waveform corresponding to the interval time;

[0050] A3, judging whether the temperature waveform corresponding to the interval time meets the preset stable condition, when any of the preset stable conditions is met, it is determined that the equipment is in temperature stable state.

[0051] Among them, the preset stable condition includes: constant value stable condition and periodic stable condition. The constant value stable condition is used to judge whether the temperature waveform fluctuates above and below the preset fixed temperature value, and the periodic stable condition is used to judge whether the periodically changing temperature waveform tends to be stable within the corresponding interval time. ​

[0052] The periodic stability conditions include: (1) selecting the temperature values ​​of the first ten points of the corresponding interval time temperature waveform and the temperature value of the second half of the waveform, and the temperature average value of the ten points is between the maximum value and the minimum value of the temperature value of the second half of the waveform; (2) calculating the slope of the corresponding interval time temperature waveform and taking the absolute value, so that the absolute value of the waveform slope is less than a preset value; (3) removing the DC component of the corresponding interval time temperature waveform and dividing it into four parts, respectively calculating the difference between the maximum value and the minimum value of the temperature value of each part, sorting the four differences from small to large, selecting the second value and the fourth value after sorting, and judging whether the fourth value satisfies the preset functional relationship with the second value.

[0053] Specifically, the four differences are sorted from small to large to obtain the four values ​​A, B, C, and D. The second value B and the fourth value D are selected for comparison. At this time, we need to define a proportional coefficient k, which satisfies the following formula:

[0054]

[0055] By judging the size between D and k×B, we can determine whether the temperature state of the device is stable. If D <k×B,则说明在间隔时间内温度的周期性变化时趋于平稳的,没有明显的升温趋势,在三个条件同时满足的情况下,就可以判定在该间隔时间内设备是处于温度稳定的状态的。

[0056] The present invention can accurately judge the temperature stability of the temperature waveform curve of the device through the temperature stability judgment method, without having to judge the temperature stability state by manually reading the temperature curve, so that users save detection time and improve detection efficiency.

[0057] Example 2

[0058] like Figure 2 As shown, the present invention provides an automatic temperature rise detection device, comprising: a temperature rise detection system, a temperature collector, a power meter, a power supply and a switch box.

[0059] The temperature rise detection system is installed in a computer and includes a method for determining temperature stability during temperature rise detection. A temperature acquisition device is connected to the computer at one end and to the device via a switch box at the other. A power supply is connected to both the computer and the device, and a power meter sends real-time voltage values ​​to the computer.

[0060] Among them, such as Figure 3 As shown, the temperature rise detection system includes: a parameter setting module, a detection module, a data processing module, a detection information display module and a report export module.

[0061] The parameter setting module is used for setting parameters of the temperature acquisition instrument, switch channels and detection parameters of the equipment. The detection module is used for testing the temperature rise of the equipment through the preset temperature rise automatic detection method. The test data processing module is used for processing the temperature information of the equipment collected by the temperature acquisition instrument, and obtaining the temperature rise data of the preset working voltage of the equipment through calculation. The detection information display module is used for displaying the temperature rise data of the equipment and the real-time temperature curve of the equipment.

[0062] The temperature acquisition instrument parameters that need to be set by the user mainly include channel selection of the temperature acquisition instrument, so that the system can know which channel of the temperature acquisition instrument is connected with the equipment, thereby obtaining the temperature information of the equipment from the channel.

[0063] The switch channel corresponds to the switch box. The switch box is provided with a plurality of connection ports, each connection port corresponds to a different switch channel. Before detection, the user needs to select the connection port of the line connection, so that the system can control the working state of the equipment through the switch box to prevent accidents. When multiple equipment needs to be detected, the equipment can be connected to different connection ports on the switch box, and the corresponding switch channel is set in the system, so that continuous detection of the equipment can be realized without manual operation in the middle.

[0064] The equipment detection parameters mainly include the rated voltage of the equipment input by the user. For example, if the rated voltage of the tested equipment is 230V, the system will automatically perform temperature rise detection of 0.94 times, 1.0 times and 1.06 times of the rated voltage, so as to more effectively reflect the temperature rise data of the working state of the equipment.

[0065] After setting the related parameters, the user presses the start key, and the system will automatically run the preset temperature rise automatic detection method to detect the temperature rise of the equipment. As shown in Figure 4 , the preset temperature rise automatic detection method includes the following steps:

[0066] S1, obtaining the parameters of the selected temperature acquisition instrument and the switch channel, and starting the switch on the corresponding switch channel, the switch channel being electrically connected with the equipment;

[0067] S2, starting the power supply according to the set detection parameters to make the equipment in a preset working state;

[0068] S3, collecting the temperature information of the equipment in real time through the temperature acquisition instrument, ending the test according to the preset stable condition when the equipment is in a temperature stable state, and obtaining the temperature rise data of the equipment.

[0069] When the system adjusts the power supply to reach the preset voltage value, the equipment will be in a normal working state. Subsequently, the temperature information of each part of the equipment is recorded in real time through the temperature acquisition instrument and sent to the data processing module.

[0070] The data processing module comprises a waveform acquisition unit, a waveform intercepting unit and a stability judging unit. The waveform acquisition unit is configured to acquire the temperature information of the equipment collected by the temperature collector and generate corresponding temperature waveforms. The waveform intercepting unit is configured to intercept the temperature waveforms corresponding to the interval time according to the interval time set by the user. The stability judging unit is configured to judge whether the temperature waveforms corresponding to the interval time meet the preset stability conditions. When any of the preset stability conditions is met, it is determined that the equipment is in a temperature stable state.

[0071] After the temperature information of the equipment is collected, the data processing module automatically processes the acquired temperature waveforms, and a method for judging whether the temperature of the equipment is stable is set, so that the system can automatically identify the stable state of the equipment, end the current step test, and perform the next test item test, thereby improving the detection efficiency.

[0072] The user can directly read the temperature data collected by each channel of the temperature collector and whether the current state is stable through the detection information display module.

[0073] The system further comprises a report exporting module, which is configured to generate a detection report according to a preset template format based on the temperature rise data of the equipment and the real-time temperature curve of the equipment, and store the report to a specified location on the computer. After the user selects the detection item information to be printed on the preset interface of the system, the system can automatically generate a test report of the corresponding detection item and export it to the computer, so that the user can directly obtain the detection result of the equipment through the detection report.

[0074] The specific embodiments described herein are merely illustrative of the spirit of the present application. Those skilled in the art of the present application can make various modifications or supplements to the described specific embodiments or replace them with similar ways, without departing from the spirit of the present application or exceeding the scope defined by the appended claims.

Claims

1. A method for determining temperature stability in temperature rise detection, characterized in that: Including the steps: Obtain the device temperature information collected by the temperature acquisition instrument and generate the corresponding temperature waveform; Intercept the temperature waveform corresponding to the interval time according to the interval time set by the user; Judge whether the temperature waveform corresponding to the interval time meets the preset stability condition. When any preset stability condition is met, it is determined that the device is in a temperature stable state; At least one of the preset stability conditions includes a periodic stability condition, which is used to judge whether the periodically changing temperature waveform tends to be stable within the corresponding interval time; The periodic stability condition includes: Select the temperature values of the first ten points and the temperature values of the second half of the waveform of the temperature waveform corresponding to the interval time, and the average temperature of these ten points is between the maximum and minimum values of the temperature values of the second half of the waveform; Calculate the slope of the temperature waveform corresponding to the interval time and take the absolute value, so that the absolute value of the slope is less than the preset value; After removing the DC component of the temperature waveform corresponding to the interval time, divide it into four parts, calculate the difference between the maximum and minimum values of the temperature values of each part respectively, sort the four differences from small to large, select the second value and the fourth value after sorting, and judge whether the fourth value and the second value meet the preset function relationship; The preset function relationship is expressed as follows: After sorting the four differences from small to large, get four values A, B, C, D, select the second value B and the fourth value D for comparison; and define a proportionality coefficient k, which satisfies the following formula: ； Judge whether the temperature state of the device tends to be stable by judging the size between D and k×B. If D < k×B, it means that the periodic change of temperature within the interval time tends to be stable; When the periodic stability conditions are simultaneously met, it is determined that the device is in a temperature stable state within the interval time.

2. The method for determining temperature stability in temperature rise detection according to claim 1, characterized in that: The preset stability condition also includes a fixed value stability condition, which is used to judge whether the temperature waveform fluctuates around a preset fixed temperature value.

3. A temperature rise automatic detection device, characterized in that: Including: A temperature rise detection system, which is used to execute the method for judging temperature stability in a temperature rise detection as described in claim 1, and the temperature rise detection system is installed in a computer; A temperature acquisition instrument, one end of which is connected to the computer, and the other end is connected to the device through a switch cabinet; A power supply, which is respectively connected to the computer and the device, and sends the real-time voltage value to the computer through a power meter.

4. The temperature rise automatic detection device according to claim 3, characterized in that: The temperature rise detection system includes: A parameter setting module, which is used to set the parameters of the temperature acquisition instrument, the switch channels, and the detection parameters of the device; A detection module, which is used to test the temperature rise of the device by a preset automatic temperature rise detection method; A data processing module, which is used to process the device temperature information collected by the temperature acquisition instrument and obtain the temperature rise data of the preset working voltage of the device through calculation; A detection information display module, which is used to display the temperature rise data of the device and the real-time temperature curve of the device.

5. The temperature rise automatic detection device according to claim 4, characterized in that: The preset automatic temperature rise detection method includes the steps: Obtain the parameters and switch channels of the temperature acquisition instrument selected by the user, and start the switch on the corresponding switch channel, and the switch channel is electrically connected to the device; Start the power supply according to the detection parameters that need to be set to make the device in a preset working state; The temperature information of the device is collected in real time through a temperature collector. The test is ended after the device is determined to be in a temperature stable state according to the preset stability conditions, and the temperature rise data of the device is obtained.

6. The temperature rise automatic detection device according to claim 4, characterized in that: The data processing module includes: The waveform acquisition unit is used to obtain the device temperature information collected by the temperature collector and generate a corresponding temperature waveform; The waveform interception unit is used to intercept the temperature waveform of the corresponding interval time according to the interval time set by the user; The stability judgment unit is used to judge whether the temperature waveform of the corresponding interval time meets the preset stability conditions. When any preset stability condition is met, it will be determined that the device is in a temperature stable state.

7. The temperature rise automatic detection device according to claim 4, characterized in that: It also includes a report export module, which is used to generate a test report based on the temperature rise data of the equipment and the real-time temperature curve of the equipment according to a preset template format, and store the report in a designated location on the computer.

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