Temperature control method and temperature control system
By using a temperature sensor and controller to dynamically adjust the internal temperature of the temperature control device, the problem of test accuracy caused by temperature differences in electronic device testing is solved, and the rapid convergence of the target device temperature and the improvement of test result accuracy are achieved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- HEFEI CORE STORAGE ELECTRONICS LTD
- Filing Date
- 2023-10-12
- Publication Date
- 2026-07-07
AI Technical Summary
In stability testing of electronic devices, the actual temperature of the electronic device differs from the internal temperature of the constant temperature and humidity test chamber, leading to a decrease in test accuracy.
By installing a temperature sensor in the temperature control device, the controller dynamically adjusts the internal temperature of the temperature control device based on reference parameters and compensation parameters to ensure that the temperature of the target device quickly converges to the target temperature.
This improved the temperature control efficiency of the target device in the temperature control system and enhanced the accuracy of the test results.
Smart Images
Figure CN117251007B_ABST
Abstract
Description
Technical Field
[0001] This invention relates to a temperature control technology, and more particularly to a temperature control method and a temperature control system. Background Technology
[0002] Before electronic devices leave the factory, they often need to undergo stability tests under different temperature conditions. For example, a common testing method involves placing the electronic device in a temperature and humidity test chamber and monitoring its operational stability under different test conditions by changing the internal temperature of the chamber. However, even when the electronic device is placed in a temperature and humidity test chamber, the actual temperature of the electronic device may still differ from the internal temperature of the chamber, thus reducing the accuracy of the test. Summary of the Invention
[0003] This invention provides a temperature control method and a temperature control system, which can improve the temperature control efficiency of the target device in the temperature control device.
[0004] An exemplary embodiment of the present invention provides a temperature control method for controlling the temperature of a target device. The target device is disposed in a temperature control device. The temperature control method includes: controlling the internal temperature of the temperature control device according to the reference parameters and the compensation parameters; detecting the temperature of the target device by a temperature sensor during the control of the internal temperature of the temperature control device according to the reference parameters and the compensation parameters; and adjusting the compensation parameters according to the temperature of the target device to change the internal temperature of the temperature control device.
[0005] An exemplary embodiment of the present invention provides a temperature control system comprising a temperature control device and a controller. The controller is connected to the temperature control device. A target device is disposed in the temperature control device. The controller is configured to: control the internal temperature of the temperature control device according to a reference parameter and a compensation parameter; detect the temperature of the target device by a temperature sensor during the control of the internal temperature of the temperature control device according to the reference parameter and the compensation parameter; and adjust the compensation parameter according to the temperature of the target device to change the internal temperature of the temperature control device.
[0006] Based on the above, after the target device is placed in the temperature control device, the internal temperature of the temperature control device can be controlled according to the reference parameters and compensation parameters. During the control of the internal temperature of the temperature control device according to the reference parameters and compensation parameters, the temperature of the target device can be detected by a temperature sensor, and the compensation parameters can be adjusted according to the temperature of the target device. Therefore, the temperature control efficiency of the target device in the temperature control device can be effectively improved. Attached Figure Description
[0007] Figure 1This is a schematic diagram of a temperature control system according to an exemplary embodiment of the present invention;
[0008] Figure 2 This is a schematic diagram showing the temperature of the target device and the internal temperature of the temperature control device at different points in time, as illustrated in an exemplary embodiment of the present invention.
[0009] Figure 3 This is a schematic diagram of a data table recording compensation parameters as shown in an exemplary embodiment of the present invention;
[0010] Figure 4 This is a schematic diagram of a temperature control device and an electronic device disposed inside the temperature control device, according to an exemplary embodiment of the present invention.
[0011] Figure 5 This is a flowchart illustrating a temperature control method according to an exemplary embodiment of the present invention. Detailed Implementation
[0012] Reference will now be made in detail to exemplary embodiments of the invention, examples of which are illustrated in the accompanying drawings. Wherever possible, the same element references are used in the drawings and description to denote the same or similar parts.
[0013] Figure 1 This is a schematic diagram of a temperature control system according to an exemplary embodiment of the present invention. Please refer to... Figure 1 The temperature control system 10 includes a temperature control device 11 and a controller 12. The temperature control device 11 can be used to house an electronic device (also referred to as a target device or device under test) 100. The total number of electronic devices 100 can be one or more, and the present invention is not limited thereto. After the electronic device 100 is placed in the temperature control device 11, the temperature control device 11 can be used to control the temperature of the electronic device 100. For example, the temperature control device 11 can attempt to control the temperature of the electronic device 100 to be close to or equal to a specific temperature (also referred to as a target temperature).
[0014] In one exemplary embodiment, the temperature control device 11 can be controlled (including changed) by an air conditioning unit (not shown) to control (including change) the internal temperature of the temperature control device 11, thereby affecting the temperature of the electronic device 100 disposed inside the temperature control device 11. In one exemplary embodiment, the temperature control device 11 can be controlled by other types of temperature control devices, which is not limited by the present invention.
[0015] The controller 12 is connected to the temperature control device 11. The controller 12 can be used to control the internal temperature of the temperature control device 11. For example, the controller 12 may include a central processing unit (CPU), or other programmable general-purpose or special-purpose microprocessors, digital signal processors (DSPs), programmable controllers, application-specific integrated circuits (ASICs), programmable logic devices (PLDs), or other similar devices or combinations thereof.
[0016] In one exemplary embodiment, the electronic device 100 is a memory storage device. For example, the electronic device 100 may include a rewritable non-volatile memory module and a memory controller for controlling the rewritable non-volatile memory module. In one exemplary embodiment, the electronic device 100 may also be other types of electronic devices, and the present invention is not limited thereto.
[0017] In one exemplary embodiment, the controller 12 may execute a test procedure on the electronic device 100 disposed in the temperature control device 11. This test procedure can be used to test the operational stability of the electronic device 100 under specific test conditions (e.g., high or low temperature environments). Taking a memory storage device as an example, this test procedure can be used to test the operational stability of the electronic device 100 performing data read and / or data write operations under specific test conditions (e.g., high or low temperature environments). In one exemplary embodiment, the specific test conditions may include maintaining the temperature of the electronic device 100 at a target temperature.
[0018] In one exemplary embodiment, controller 12 can control the internal temperature of temperature control device 11 based on a reference parameter and a compensation parameter. The reference parameter corresponds to a target temperature. The compensation parameter can be used to compensate for the reference parameter. For example, controller 12 can transmit at least one of the reference parameter and the compensation parameter to temperature control device 11 to control (including change) the internal temperature of temperature control device 11.
[0019] In one exemplary embodiment, after determining the target temperature, the controller 12 can set a reference parameter based on the target temperature. Without considering compensation parameters, the controller 12 can control the internal temperature of the temperature control device 11 to be (substantially) the same as the target temperature based on the reference parameter. However, if the internal temperature of the temperature control device 11 is controlled solely based on this reference parameter, the temperature of the electronic device 100 may always fail to reach (or approach) the target temperature, or may fail to do so for a short period of time.
[0020] In one exemplary embodiment, the controller 12 can compensate for the reference parameters based on the compensation parameters to change the internal temperature of the temperature control device 11. In particular, by actively adjusting the internal temperature of the temperature control device 11, the convergence of the temperature of the electronic device 100 to the target temperature can be accelerated.
[0021] In one exemplary embodiment, while controlling the internal temperature of the temperature control device 11 according to reference parameters and compensation parameters, the controller 12 may detect the temperature of the electronic device 100 via the temperature sensor 101. For example, the temperature sensor 101 may include a thermistor or other sensors that can be used to monitor the temperature of the electronic device 100.
[0022] In one exemplary embodiment, the temperature sensor 101 may physically contact the electronic device 100. For example, the temperature sensor 101 may be disposed in the electronic device 100 or attached to the surface of the electronic device 100. In another exemplary embodiment, the temperature sensor 101 may also not physically contact the electronic device 100. For example, the temperature sensor 101 may detect the temperature of the electronic device 100 non-contactly by transmitting or receiving infrared signals.
[0023] In one exemplary embodiment, controller 12 may send a command (also referred to as a temperature query command) to electronic device 100 via a connection interface (not shown). This temperature query command can be used to query the temperature of electronic device 100. Electronic device 100 may receive this temperature query command and generate a response to it. For example, in response to the temperature query command, electronic device 100 may include temperature information in its response. This temperature information may reflect the temperature of electronic device 100 at a specific point in time. Controller 12 may then receive this response and obtain the temperature of electronic device 100 based on it.
[0024] In one exemplary embodiment, the controller 12 may also send another instruction (also referred to as a test instruction) through the connection interface. This test instruction can be used to instruct the electronic device 100 to perform specific operations during stability testing. Taking a memory storage device as an example, this test instruction can instruct the electronic device 100 to perform read, write, and / or erase operations on its internal rewritable non-volatile memory module. Furthermore, if the electronic device 100 is another type of device, this test instruction can be used to instruct the electronic device 100 to perform other types of operations during stability testing, which is not limited by the present invention.
[0025] In one exemplary embodiment, after obtaining the temperature of the electronic device 100, the controller 12 can dynamically adjust the compensation parameter based on the temperature of the electronic device 100. By adjusting the compensation parameter, the internal temperature of the temperature control device 11 can be changed accordingly (e.g., increased or decreased). For example, by adjusting the compensation parameter, the internal temperature of the temperature control device 11 can be increased by P degrees or decreased by Q degrees.
[0026] In one exemplary embodiment, during the control of the internal temperature of the temperature control device 11 based on reference parameters and compensation parameters, the controller 12 can obtain the difference between the temperature of the electronic device 100 and the target temperature. The controller 12 can dynamically determine the compensation parameters based on this difference.
[0027] In one exemplary embodiment, in response to a specific value (also referred to as a first difference) between the temperature of the electronic device 100 and the target temperature, the controller 12 may set the compensation parameter to a specific parameter (also referred to as a first compensation parameter). Furthermore, in another exemplary embodiment, in response to a different value (also referred to as a second difference) between the temperature of the electronic device 100 and the target temperature, the controller 12 may set the compensation parameter to another parameter (also referred to as a second compensation parameter). The first difference is different from the second difference. The first compensation parameter is different from the second compensation parameter.
[0028] Figure 2 This is a schematic diagram illustrating the temperature changes of the target device and the internal temperature of the temperature control device at different points in time, as shown in an exemplary embodiment of the present invention. Please refer to... Figure 1 and Figure 2 Assume that curve 21 is used to represent the temperature of electronic device 100 (i.e., target device) at different time points, and curve 22 is used to represent the internal temperature of temperature control device 11 at different time points. Furthermore, assume that temperature Temp(0) is the target temperature.
[0029] In one exemplary embodiment, controller 12 can determine a reference parameter based on temperature Temp(0). For example, controller 12 can input temperature Temp(0) into an algorithm or data table. Controller 12 can determine the reference parameter based on the output of this algorithm or data table. Then, controller 12 can control the internal temperature of temperature control device 11 based on this reference parameter. For example, controller 12 can maintain the internal temperature of temperature control device 11 at a target temperature based on this reference parameter. However, if the internal temperature of temperature control device 11 is controlled solely based on the reference parameter, various factors (such as excessive heat generation per unit time of electronic device 100) may cause the temperature of electronic device 100 to consistently or temporarily fail to reach (or approach) the target temperature.
[0030] In one exemplary embodiment, the controller 12 may dynamically adjust the internal temperature of the temperature control device 11 (represented by curve 22) based on the temperature of the electronic device 100 (represented by curve 21). For example, the controller 12 may dynamically adjust the internal temperature of the temperature control device 11 based on the difference between the temperature of the electronic device 100 and the temperature Temp(0) at one or more time points.
[0031] In one exemplary embodiment, the controller 12 can dynamically determine (including adjust) compensation parameters based on the temperature of the electronic device 100 at one or more time points. For example, the controller 12 can obtain a difference ΔT(i) corresponding to time point T(i). The difference ΔT(i) can reflect the difference between the temperature of the electronic device 100 and the temperature Temp(0) at time point T(i). The controller 12 can determine (including adjust) compensation parameters based on the difference ΔT(i). For example, the controller 12 can input the difference ΔT(i) into an algorithm or data table. The controller 12 can determine compensation parameters based on the output of this algorithm or data table. Then, the controller 12 can control (including adjust) the internal temperature of the temperature control device 11 based on these compensation parameters.
[0032] by Figure 2 For example, in one exemplary embodiment, the controller 12 can obtain the differences ΔT(1), ΔT(2), and ΔT(3) corresponding to time points T(1), T(2), and T(3), respectively. The difference ΔT(1) can reflect the difference between the temperature of the electronic device 100 and the temperature Temp(0) at time point T(1). The difference ΔT(2) can reflect the difference between the temperature of the electronic device 100 and the temperature Temp(0) at time point T(2). The difference ΔT(3) can reflect the difference between the temperature of the electronic device 100 and the temperature Temp(0) at time point T(3). The controller 12 can adjust the internal temperature of the temperature control device 11 at different time points according to the differences ΔT(1), ΔT(2), and ΔT(3). For example, the adjusted internal temperature of the temperature control device 11 is shown as curve 22.
[0033] In one exemplary embodiment, by dynamically adjusting the internal temperature of the temperature control device 11, the temperature of the electronic device 100 can be accelerated to converge to temperature Temp(0) (as shown at the end of curve 21). It should be noted that... Figure 2 Curves 21 and 22 in the figure are merely examples and are not intended to limit the invention.
[0034] Figure 3 This is a schematic diagram of a data table recording compensation parameters according to an exemplary embodiment of the present invention. Please refer to... Figure 1 and Figure 3In one exemplary embodiment, the controller 12 may create or load a data table 31. The data table 31 may record the association (or mapping) between the temperature (i.e., Temp(i), where i is greater than zero) (and / or the difference ΔT(i)) of the electronic device 100 and the compensation parameter S(i). For example, the difference ΔT(i) may reflect the difference between the target temperature (e.g., temperature Temp(0)) and the temperature of the electronic device 100 (i.e., Temp(i)). The controller 12 may query the data table 31 based on the temperature (i.e., Temp(i)) and / or the difference ΔT(i) of the electronic device 100 to obtain the compensation parameter S(i). The controller 12 may then adjust the internal temperature of the temperature control device 11 based on the compensation parameter S(i). It should be noted that... Figure 3 The information recorded in data table 31 is merely illustrative and not intended to limit the invention. In one exemplary embodiment, data table 31 may also be replaced by or used in conjunction with an algorithm, and the invention is not limited thereto.
[0035] Figure 4 This is a schematic diagram of a temperature control device and an electronic device disposed inside the temperature control device, according to an exemplary embodiment of the present invention. Please refer to... Figure 1 and Figure 4 In one exemplary embodiment, the temperature control device 11 includes a temperature control device 41, the controller 12 includes a controller 42, and the electronic device 100 includes an electronic device 400 (i.e., the target device). For example, the temperature control device 41 may include a temperature control chamber. The electronic device 400 may be disposed within the temperature control chamber. The controller 42 may be used to control the internal temperature of the temperature control device 41 (e.g., the temperature control chamber). Furthermore, the controller 42 may be disposed inside or outside the temperature control device 41, without limitation by the present invention.
[0036] In one exemplary embodiment, if the electronic device 400 to be tested is only one and is housed in the temperature control device 41 (e.g., a temperature control chamber), the controller 42 can adjust the internal temperature of the temperature control chamber based on the temperature of the single electronic device 400. The relevant operational details have been described above and will not be repeated here.
[0037] In one exemplary embodiment, if the electronic devices 400 to be tested are multiple and housed in a temperature control device 41 (e.g., a temperature control chamber), the test may be performed in a multi-stage manner. Figure 4 As shown), the controller 42 can adjust the internal temperature of the temperature control box based on the average or median temperature of these electronic devices 400. Figure 2 For example, if the number of target devices is greater than one, curve 21 can be used to represent the average or median temperature of these target devices. Then, controller 42 can adjust the internal temperature of the temperature control chamber based on the difference ΔT(i). The relevant operational details have been described above and will not be repeated here.
[0038] Figure 5This is a flowchart illustrating a temperature control method according to an exemplary embodiment of the present invention. Please refer to... Figure 5 In step S501, the internal temperature of the temperature control device is controlled according to the reference parameters and compensation parameters. In step S502, during the control of the internal temperature of the temperature control device according to the reference parameters and compensation parameters, the temperature of the target device is detected by a temperature sensor. In step S503, the compensation parameters are adjusted according to the temperature of the target device to change the internal temperature of the temperature control device.
[0039] However, Figure 5 Each step has been explained in detail above and will not be repeated here. It is worth noting that... Figure 5 Each step can be implemented as multiple program codes or circuits, and this invention is not limited thereto. Furthermore, Figure 5 The method can be used in conjunction with the above examples and embodiments, or it can be used alone. This invention does not impose any limitations.
[0040] In summary, the temperature control system and method proposed in this invention can dynamically adjust the internal temperature of the temperature control device based on the actual temperature of the electronic device during stability testing. This effectively improves the temperature control efficiency of the target device within the temperature control device, thereby enhancing the accuracy of the test results.
[0041] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, and not to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.
Claims
1. A temperature control method, characterized in that, For controlling the temperature of a target device, wherein the target device is disposed in a temperature control device, and the temperature control method includes: Set the baseline parameters according to the target temperature; The internal temperature of the temperature control device is controlled according to the reference parameters and compensation parameters; During the control of the internal temperature of the temperature control device according to the reference parameters and the compensation parameters, the temperature of the target device is detected by a temperature sensor; and The compensation parameters are adjusted according to the temperature of the target device to control the temperature of the target device to change between two temperature states—above and below the target temperature—at least twice, thereby accelerating the convergence of the temperature of the target device to the target temperature. Before the temperature of the target device converges to the target temperature, during the first transition between two temperature states—above and below the target temperature—the temperature of the target device is lowered to below the target temperature using compensation parameters determined based on the temperature of the target device detected at a first time point, and then raised to above the target temperature using the same compensation parameters determined based on the temperature of the target device detected at a second time point. Before the temperature of the target device converges to the target temperature, during the second transition between two temperature states—above and below the target temperature—the temperature of the target device is lowered again to below the target temperature by the compensation parameter determined based on the temperature of the target device detected at a third time point, and then raised again to above the target temperature by the compensation parameter determined based on the temperature of the target device detected at a fourth time point, and the second transition occurs after the first transition.
2. The temperature control method according to claim 1, wherein the temperature sensor comprises a thermistor.
3. The temperature control method according to claim 1, wherein the temperature sensor entity contacts the target device.
4. The temperature control method according to claim 1, wherein the temperature sensor is disposed in the target device, and the step of detecting the temperature of the target device by the temperature sensor includes: Send instructions to the target device; Receive the target device's response to the instruction; as well as The temperature of the target device is obtained based on the response.
5. The temperature control method according to claim 1, wherein the compensation parameter is used to compensate the reference parameter to change the internal temperature of the temperature control device.
6. The temperature control method according to claim 1, wherein the step of adjusting the compensation parameter according to the temperature of the target device includes: The compensation parameter is determined based on the difference between the temperature of the target device and the target temperature.
7. The temperature control method according to claim 6, wherein the step of determining the compensation parameter based on the difference between the temperature of the target device and the target temperature includes: In response to the first difference value between the temperature of the target device and the target temperature, the compensation parameter is set to the first compensation parameter; as well as In response to the difference between the temperature of the target device and the target temperature being a second difference value, the compensation parameter is set to the second compensation parameter. The first difference is different from the second difference, and the first compensation parameter is different from the second compensation parameter.
8. The temperature control method according to claim 1, wherein if the number of target devices is multiple, the temperature of the target device is the average or median of the temperatures of the multiple target devices.
9. The temperature control method according to claim 1, wherein the target device includes a memory storage device.
10. A temperature control system, characterized in that, include: Temperature control device; as well as The controller is connected to the temperature control device. The target device is located within the temperature control device, and The controller is used to: Set the baseline parameters according to the target temperature; The internal temperature of the temperature control device is controlled according to the reference parameters and compensation parameters; During the control of the internal temperature of the temperature control device according to the reference parameters and the compensation parameters, the temperature of the target device is detected by a temperature sensor; as well as The compensation parameters are adjusted according to the temperature of the target device to control the temperature of the target device to change between two temperature states—above and below the target temperature—at least twice, thereby accelerating the convergence of the temperature of the target device to the target temperature. Before the temperature of the target device converges to the target temperature, during the first transition between two temperature states—above and below the target temperature—the temperature of the target device is lowered to below the target temperature using compensation parameters determined based on the temperature of the target device detected at a first time point, and then raised to above the target temperature using the same compensation parameters determined based on the temperature of the target device detected at a second time point. Before the temperature of the target device converges to the target temperature, during the second transition between two temperature states—above and below the target temperature—the temperature of the target device is lowered again to below the target temperature by the compensation parameter determined based on the temperature of the target device detected at a third time point, and then raised again to above the target temperature by the compensation parameter determined based on the temperature of the target device detected at a fourth time point, and the second transition occurs after the first transition.
11. The temperature control system according to claim 10, wherein the temperature sensor comprises a thermistor.
12. The temperature control system according to claim 10, wherein the temperature sensor entity contacts the target device.
13. The temperature control system of claim 10, wherein the temperature sensor is disposed in the target device, and the operation of the controller detecting the temperature of the target device through the temperature sensor includes: Send instructions to the target device; Receive the target device's response to the instruction; as well as The temperature of the target device is obtained based on the response.
14. The temperature control system according to claim 10, wherein the compensation parameter is used to compensate the reference parameter to change the internal temperature of the temperature control device.
15. The temperature control system of claim 10, wherein the operation of the controller adjusting the compensation parameter according to the temperature of the target device includes: The compensation parameter is determined based on the difference between the temperature of the target device and the target temperature.
16. The temperature control system of claim 15, wherein the operation of the controller determining the compensation parameter based on the difference between the temperature of the target device and the target temperature includes: In response to the first difference value between the temperature of the target device and the target temperature, the compensation parameter is set to the first compensation parameter; as well as In response to the difference between the temperature of the target device and the target temperature being a second difference value, the compensation parameter is set to the second compensation parameter. The first difference is different from the second difference, and the first compensation parameter is different from the second compensation parameter.
17. The temperature control system according to claim 10, wherein if the number of target devices is multiple, the temperature of the target device is the average or median of the temperatures of the multiple target devices.
18. The temperature control system according to claim 10, wherein the target device includes a memory storage device.