Method for improving measurement accuracy of electrical safety detection equipment based on thermal noise control

Abstract

The present invention relates to the field of equipment measurement technology, and provides a method for improving the measurement accuracy of an electrical safety detection device based on thermal noise control, comprising: obtaining an electrical safety detection device for customs inspection, and locating an electronic component to be processed on the electrical safety detection device; based on a thermoelectric cooler, performing a temperature reduction process on the electronic component to be processed; performing a heat dissipation process on the thermoelectric cooler; and performing energy consumption management on the thermoelectric cooler. The present invention performs a temperature reduction process on the electronic component to be processed according to the thermoelectric cooler, and ensures the operating temperature of the thermoelectric cooler, which can reduce the thermal excitation motion of electrons, reduce noise, improve the signal-to-noise ratio of the signal, and ultimately improve the accuracy and stability of the measurement.

Description

Technical Field

[0001] The present invention relates to the technical field of equipment measurement, and in particular to a method for improving the measurement accuracy of electrical safety detection equipment based on thermal noise control. Background Art

[0002] In the customs inspection of imported and exported products, various products often appear. To realize import and export, these products must be inspected by inspectors to ensure that the test results are within the normal range and meet the relevant laws and regulations of the trade destination country before they can be imported and exported; electrical safety testing equipment is an important equipment in the inspection. When facing a large number of inspection samples, it not only increases the labor intensity of the inspectors, but also reduces the inspection efficiency over time. This requires ensuring the high reliability and high safety of electrical safety testing equipment; in the maintenance of electrical safety testing equipment, it is necessary to measure the operating parameters of electrical equipment, and thermal noise is an important factor affecting the accuracy of measurement; thermal noise is generated by the thermal motion of electrons in resistors, and its amplitude is proportional to the temperature and resistance value. Lowering the temperature can effectively reduce the thermal noise voltage, thereby improving the signal-to-noise ratio of the measurement, which is convenient for improving the precision and accuracy of the measurement. The existing measurement of electrical safety testing equipment still has the problem that the measurement methods are not rich enough and the measurement accuracy is not high enough.

[0003] Therefore, it is necessary to provide a method for improving the measurement accuracy of electrical safety detection equipment based on thermal noise control. Summary of the invention

[0004] The present invention provides a method for improving the measurement accuracy of electrical safety detection equipment based on thermal noise control. By using a thermoelectric cooler to cool the electronic components to be processed and ensuring the operating temperature of the thermoelectric cooler, the thermally excited motion of electrons can be reduced, noise can be reduced, and the signal-to-noise ratio of the signal can be improved, ultimately improving the accuracy and stability of the measurement.

[0005] The present invention provides a method for improving the measurement accuracy of an electrical safety detection device based on thermal noise control, comprising:

[0006] Obtain electrical safety testing equipment for customs inspection and locate the electronic components to be processed on the electrical safety testing equipment;

[0007] Based on thermoelectric cooler, the electronic components to be processed are cooled down;

[0008] Perform heat dissipation treatment on the thermoelectric cooler;

[0009] Managing energy consumption of thermoelectric coolers.

[0010] Further, based on the thermoelectric cooler, the electronic component to be processed is subjected to a cooling process, including:

[0011] Select and specify a thermoelectric cooler;

[0012] Collect the temperature of the electronic components to be processed and control the temperature of the thermoelectric cooler;

[0013] placing a thermally conductive interface material between the thermoelectric cooler and the electronic component to be processed;

[0014] Protect thermoelectric coolers and processed electronic components from condensation.

[0015] Further, selecting and determining a thermoelectric cooler includes:

[0016] Obtain a Peltier element;

[0017] According to the calorific value of the Peltier element, a Peltier element that meets the set cooling power requirements and the size requirements of the electronic components to be processed is selected as the thermoelectric cooler.

[0018] Furthermore, the temperature of the electronic component to be processed is collected and the temperature of the thermoelectric cooler is controlled, including:

[0019] Install a high-precision temperature sensor near the electronic components to be processed to monitor the temperature of the electronic components to be processed in real time;

[0020] A PID temperature control circuit is designed to adjust the operating current of the thermoelectric cooler and maintain the set target temperature.

[0021] Furthermore, a thermally conductive interface material is arranged between the thermoelectric cooler and the electronic component to be processed, including:

[0022] Adding a thermally conductive interface material with high thermal conductivity between the thermoelectric cooler and the electronic component to be processed;

[0023] The thermoelectric cooler, the electronic components to be processed and the thermal conductive interface material are fixed by clamps or screws.

[0024] Further, condensation protection is performed on the thermoelectric cooler and the electronic components to be processed, including:

[0025] The thermoelectric cooler and the cooling area where the electronic components to be processed are located are sealed to prevent moisture from the air from entering;

[0026] Place desiccant in the space formed after sealing to absorb residual moisture and prevent condensation.

[0027] Furthermore, heat dissipation processing is performed on the thermoelectric cooler, including:

[0028] Choose to use high thermal conductivity materials to make the heat sink, and use fin design to increase the surface area of ​​the heat sink to improve heat dissipation efficiency;

[0029] A micro fan is installed on the radiator to implement auxiliary heat dissipation;

[0030] Design exhaust ducts to ensure smooth air circulation;

[0031] A heat pipe is added between the heat sink and the thermoelectric cooler to quickly conduct heat and improve the heat dissipation effect.

[0032] Furthermore, energy consumption management of the thermoelectric cooler is performed, including:

[0033] A voltage regulator designed to provide a stable DC power supply to the thermoelectric cooler;

[0034] Design a power module with adjustable current and cooperate with the temperature control circuit to achieve precise temperature control;

[0035] Calculate and evaluate the power consumption of the thermoelectric cooler, and control the use of the thermoelectric cooler according to the evaluation result;

[0036] Under non-high-precision measurement conditions, enable the energy-saving mode to reduce the operating power of the thermoelectric cooler or turn off the cooling function;

[0037] Add filtering to the design of the regulated power supply and increase shielding measures to prevent interference to the circuit during the power supply process of the regulated power supply.

[0038] Further, the power consumption of the thermoelectric cooler is calculated and evaluated, and the use of the thermoelectric cooler is controlled according to the evaluation result, including:

[0039] Acquire real-time operation data of the thermoelectric cooler, input the real-time operation data into a set isolation forest model, and output abnormal operation data in the real-time operation data;

[0040] The long short-term memory network model is used to predict the phase working cycle of abnormal operation data and obtain the phase working cycle prediction results;

[0041] If the abnormal operation trend of the abnormal operation data in the stage working cycle prediction result does not develop according to the set trend development rate, then based on the abnormal operation data, using the set power consumption evaluation index, power consumption evaluation is performed to obtain the first stage power consumption evaluation result; if the abnormal operation trend of the abnormal operation data in the stage working cycle prediction result develops according to or exceeds the set trend development rate, then based on the abnormal operation data in the stage working cycle prediction result, using the set power consumption evaluation index, power consumption evaluation is performed to obtain the second stage power consumption evaluation result; the second stage power consumption evaluation result is power consumption evaluation data of multiple time series stages;

[0042] A power consumption evaluation data threshold is set. If the power consumption evaluation data in the timing stage is greater than the power consumption evaluation data threshold, the use of the thermoelectric cooler is controlled according to the set adjustment control strategy; the adjustment control strategy includes but is not limited to stopping the operation of the thermoelectric cooler, interrupting the operation of the thermoelectric cooler, and using the thermoelectric cooler for non-high-precision measurement tasks.

[0043] Furthermore, the method further includes scheduling the thermoelectric cooler to perform different measurement tasks according to different accuracy requirements of the measurement tasks and in combination with the power consumption state of the thermoelectric cooler and the energy consumption state of the thermoelectric cooler; the specific steps are:

[0044] Obtain the accuracy requirements of the measurement task;

[0045] According to the accuracy requirements, a corresponding matching relationship library with the thermoelectric cooling power consumption state and the thermoelectric cooling energy consumption state is constructed;

[0046] Obtain the accuracy requirements of the real-time measurement task, and based on the corresponding matching relationship library, obtain the real-time power consumption status and energy consumption status of the thermoelectric cooling that match the real-time measurement task;

[0047] Based on the real-time power consumption status of thermoelectric refrigeration and the real-time energy consumption status of thermoelectric refrigeration, the trained neural network model is used to predict the change in thermoelectric refrigeration power consumption and the change in thermoelectric refrigeration energy consumption respectively;

[0048] When the change in the power consumption of the thermoelectric refrigeration reaches the first power consumption threshold, and the change in the energy consumption of the thermoelectric refrigeration reaches the first energy consumption threshold, the state of the thermoelectric refrigerator is marked, and the thermoelectric refrigerator with the marked state is adjusted to a waiting-for-scheduling working state;

[0049] Obtain a demand measurement task, and based on the accuracy requirements in the demand measurement task and the corresponding matching relationship library, match the thermoelectric cooling power consumption state and the thermoelectric cooling energy consumption state of the thermoelectric cooling device in the working state to be scheduled, to obtain a matching first thermoelectric cooling device;

[0050] If there is only one first thermoelectric cooler, the first thermoelectric cooler is scheduled to perform the demand measurement task; if there are multiple first thermoelectric coolers, they are screened based on the time of status marking, and the first thermoelectric cooler that performs the status marking first is scheduled to perform the demand measurement task.

[0051] Compared with the prior art, the present invention has the following advantages and beneficial effects: by performing cooling treatment on the electronic components to be processed by the thermoelectric cooler and ensuring the working temperature of the thermoelectric cooler, the thermally excited motion of electrons can be reduced, the noise can be reduced, the signal-to-noise ratio of the signal can be improved, and ultimately the accuracy and stability of the measurement can be improved.

[0052] Other features and advantages of the present invention will be described in the following description, and partly become apparent from the description, or understood by practicing the present invention. The purpose and other advantages of the present invention can be realized and obtained by the structures particularly pointed out in the written description and the accompanying drawings.

[0053] The technical solution of the present invention is further described in detail below through the accompanying drawings and embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0054] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0055] Figure 1 A schematic diagram of the steps of a method for improving the measurement accuracy of electrical safety detection equipment based on thermal noise control;

[0056] Figure 2 A schematic diagram of the steps of a method for cooling down an electronic component to be processed;

[0057] Figure 3 A schematic diagram of the steps of a method for collecting the temperature of an electronic component to be processed and controlling the temperature of a thermoelectric cooler. DETAILED DESCRIPTION

[0058] The preferred embodiments of the present invention are described below in conjunction with the accompanying drawings. It should be understood that the preferred embodiments described herein are only used to illustrate and explain the present invention, and are not used to limit the present invention.

[0059] The present invention provides a method for improving the measurement accuracy of electrical safety detection equipment based on thermal noise control, such as Figure 1 As shown, including:

[0060] Obtain electrical safety testing equipment for customs inspection and locate the electronic components to be processed on the electrical safety testing equipment;

[0061] Based on thermoelectric cooler, the electronic components to be processed are cooled down;

[0062] Perform heat dissipation treatment on the thermoelectric cooler;

[0063] Managing energy consumption of thermoelectric coolers.

[0064] The working principle of the above technical solution is: in order to realize the measurement accuracy improvement method of electrical safety detection equipment based on thermal noise control, the present invention first obtains the electrical safety detection equipment used for customs inspection and locates the electronic components to be processed on the electrical safety detection equipment; then, based on the thermoelectric cooler, the electronic components to be processed are subjected to temperature cooling treatment; then, the thermoelectric cooler is subjected to heat dissipation treatment; finally, the thermoelectric cooler is subjected to energy consumption management.

[0065] The beneficial effects of the above technical solution are: by adopting the solution provided in this embodiment, the thermoelectric cooler is used to cool the electronic components to be processed, and the operating temperature of the thermoelectric cooler is ensured, the thermally excited motion of electrons can be reduced, the noise can be reduced, the signal-to-noise ratio of the signal can be improved, and ultimately the accuracy and stability of the measurement can be improved.

[0066] In one embodiment, Figure 2 As shown, based on a thermoelectric cooler, a temperature reduction process is performed on the electronic components to be processed, including:

[0067] Select and specify a thermoelectric cooler;

[0068] Collect the temperature of the electronic components to be processed and control the temperature of the thermoelectric cooler;

[0069] placing a thermally conductive interface material between the thermoelectric cooler and the electronic component to be processed;

[0070] Protect thermoelectric coolers and processed electronic components from condensation.

[0071] The working principle of the above technical solution is: in order to realize the cooling treatment of the electronic components to be processed, the present invention first selects and determines the thermoelectric cooler, then collects the temperature of the electronic components to be processed and controls the temperature of the thermoelectric cooler, then arranges the thermal conductive interface material between the thermoelectric cooler and the electronic components to be processed, and finally, performs condensation protection on the thermoelectric cooler and the electronic components to be processed.

[0072] The beneficial effect of the above technical solution is: by adopting the solution provided in this embodiment, thermal noise can be reduced by performing a temperature reduction process on the electronic components to be processed.

[0073] In one embodiment, selecting and determining a thermoelectric cooler includes:

[0074] Obtain a Peltier element;

[0075] According to the calorific value of the Peltier element, a Peltier element that meets the set cooling power requirements and the size requirements of the electronic components to be processed is selected as the thermoelectric cooler.

[0076] The working principle of the above technical solution is: in order to select and determine the thermoelectric cooler, the present invention first obtains the Peltier element, and then selects the Peltier element that meets the set cooling power requirements and the size requirements of the electronic component to be processed as the thermoelectric cooler according to the calorific value of the Peltier element.

[0077] The beneficial effect of the above technical solution is: by adopting the solution provided in this embodiment, by selecting thermoelectric coolers, it is ensured that the thermoelectric cooler models that meet the requirements are screened out, providing a basis for more effective implementation of refrigeration.

[0078] In one embodiment, Figure 3 As shown, the temperature of the electronic component to be processed is collected and the temperature of the thermoelectric cooler is controlled, including:

[0079] Install a high-precision temperature sensor near the electronic components to be processed to monitor the temperature of the electronic components to be processed in real time;

[0080] A PID temperature control circuit is designed to adjust the operating current of the thermoelectric cooler and maintain the set target temperature.

[0081] The working principle of the above technical solution is: in order to realize temperature acquisition of the electronic components to be processed and temperature control of the thermoelectric cooler, the present invention first installs a high-precision temperature sensor near the electronic components to be processed. The high-precision temperature sensor can be a PT100 or NTC thermistor, which is used to monitor the temperature of the electronic components to be processed in real time; then a PID temperature control circuit is designed to adjust the working current of the thermoelectric cooler and maintain the set target temperature.

[0082] The beneficial effect of the above technical solution is: by adopting the solution provided in this embodiment, by collecting the temperature of the electronic component to be processed and controlling the temperature of the thermoelectric cooler, real-time monitoring of the temperature of the electronic component to be processed can be ensured.

[0083] In one embodiment, a thermally conductive interface material is disposed between a thermoelectric cooler and an electronic component to be processed, including:

[0084] Adding a thermally conductive interface material with high thermal conductivity between the thermoelectric cooler and the electronic component to be processed;

[0085] The thermoelectric cooler, the electronic components to be processed and the thermal conductive interface material are fixed by clamps or screws.

[0086] The working principle of the above technical solution is: in order to realize the layout of thermal conductive interface material between the thermoelectric cooler and the electronic component to be processed, the present invention first adds a thermal conductive interface material with high thermal conductivity between the thermoelectric cooler and the electronic component to be processed. The thermal conductive interface material can be selected from thermal conductive silicone grease or thermal conductive gasket to reduce thermal resistance; then, the thermoelectric cooler, the electronic component to be processed and the thermal conductive interface material are fixed by clamping or screwing.

[0087] The beneficial effect of the above technical solution is: by adopting the solution provided in this embodiment, by arranging a thermal interface material between the thermoelectric cooler and the electronic component to be processed, rapid heat conduction and heat dissipation can be facilitated.

[0088] In one embodiment, condensation protection is performed on a thermoelectric cooler and an electronic component to be processed, including:

[0089] The thermoelectric cooler and the cooling area where the electronic components to be processed are located are sealed to prevent moisture from the air from entering;

[0090] Place desiccant in the space formed after sealing to absorb residual moisture and prevent condensation.

[0091] The working principle of the above technical solution is: in order to achieve condensation protection for the thermoelectric cooler and the electronic components to be processed, the present invention first seals the cooling area where the thermoelectric cooler and the electronic components to be processed are located to prevent moisture in the air from entering; then a desiccant is placed in the space formed after sealing to absorb residual moisture and prevent condensation.

[0092] The beneficial effect of the above technical solution is: by adopting the solution provided in this embodiment, the cooling effect can be further guaranteed through cold and warm protection measures.

[0093] In one embodiment, heat dissipation processing is performed on a thermoelectric cooler, including:

[0094] Choose to use high thermal conductivity materials to make the heat sink, and use fin design to increase the surface area of ​​the heat sink to improve heat dissipation efficiency;

[0095] A micro fan is installed on the radiator to implement auxiliary heat dissipation;

[0096] Design exhaust ducts to ensure smooth air circulation;

[0097] A heat pipe is added between the heat sink and the thermoelectric cooler to quickly conduct heat and improve the heat dissipation effect.

[0098] The working principle of the above technical solution is: in order to achieve heat dissipation of the thermoelectric cooler, the present invention first selects to use high thermal conductivity materials to make the radiator, and adopts a fin design method to increase the surface area of ​​the radiator to improve the heat dissipation efficiency; then installs a micro fan on the radiator to implement auxiliary heat dissipation; then, designs the exhaust duct to ensure smooth air circulation; adds a heat pipe between the radiator and the thermoelectric cooler to quickly conduct heat and improve the heat dissipation effect.

[0099] The beneficial effect of the above technical solution is: by adopting the solution provided in this embodiment, the heat dissipation effect can be ensured by performing heat dissipation treatment on the thermoelectric cooler.

[0100] In one embodiment, energy consumption management of a thermoelectric cooler includes:

[0101] A voltage regulator designed to provide a stable DC power supply to the thermoelectric cooler;

[0102] Design a power module with adjustable current and cooperate with the temperature control circuit to achieve precise temperature control;

[0103] Calculate and evaluate the power consumption of the thermoelectric cooler, and control the use of the thermoelectric cooler according to the evaluation result;

[0104] Under non-high-precision measurement conditions, enable the energy-saving mode to reduce the operating power of the thermoelectric cooler or turn off the cooling function;

[0105] Add filtering to the design of the regulated power supply and increase shielding measures to prevent interference to the circuit during the power supply process of the regulated power supply.

[0106] The working principle of the above technical solution is as follows: in order to achieve energy consumption management of the thermoelectric cooler, the present invention first designs a voltage-stabilized power supply that provides a stable DC power supply for the thermoelectric cooler; then designs a power supply module with adjustable current, and cooperates with the temperature control circuit to achieve precise temperature control; then, calculates and evaluates the power consumption of the thermoelectric cooler, and controls the use of the thermoelectric cooler according to the evaluation results; finally, under non-high-precision measurement conditions, enables the energy-saving mode to reduce the working power of the thermoelectric cooler or turn off the cooling function; adds filtering to the voltage-stabilized power supply design, and adds shielding measures to prevent interference to the circuit during the power supply process of the voltage-stabilized power supply.

[0107] The beneficial effect of the above technical solution is: by adopting the solution provided in this embodiment, the energy consumption of the thermoelectric cooler can be managed to ensure stable and efficient operation of the thermoelectric cooler.

[0108] In one embodiment, calculating and evaluating the power consumption of a thermoelectric cooler, and controlling the use of the thermoelectric cooler according to the evaluation result, includes:

[0109] Acquire real-time operation data of the thermoelectric cooler, input the real-time operation data into a set isolation forest model, and output abnormal operation data in the real-time operation data;

[0110] The long short-term memory network model is used to predict the phase working cycle of abnormal operation data and obtain the phase working cycle prediction results;

[0111] If the abnormal operation trend of the abnormal operation data in the stage working cycle prediction result does not develop according to the set trend development rate, then based on the abnormal operation data, using the set power consumption evaluation index, power consumption evaluation is performed to obtain the first stage power consumption evaluation result; if the abnormal operation trend of the abnormal operation data in the stage working cycle prediction result develops according to or exceeds the set trend development rate, then based on the abnormal operation data in the stage working cycle prediction result, using the set power consumption evaluation index, power consumption evaluation is performed to obtain the second stage power consumption evaluation result; the second stage power consumption evaluation result is power consumption evaluation data of multiple time series stages;

[0112] A power consumption evaluation data threshold is set. If the power consumption evaluation data in the timing stage is greater than the power consumption evaluation data threshold, the use of the thermoelectric cooler is controlled according to the set adjustment control strategy; the adjustment control strategy includes but is not limited to stopping the operation of the thermoelectric cooler, interrupting the operation of the thermoelectric cooler, and using the thermoelectric cooler for non-high-precision measurement tasks.

[0113] The working principle of the above technical solution is as follows: in order to calculate and evaluate the power consumption of the thermoelectric refrigerator and control the use of the thermoelectric refrigerator according to the evaluation results, the present invention first obtains the real-time operation data of the thermoelectric refrigerator, inputs the real-time operation data into the set isolation forest model, and outputs the abnormal operation data in the real-time operation data; then uses the long short-term memory network model to predict the stage working cycle of the abnormal operation data to obtain the stage working cycle prediction result; if the abnormal operation trend of the abnormal operation data in the stage working cycle prediction result does not develop according to the set trend development rate, then based on the abnormal operation data, use the set power consumption evaluation index to perform power consumption evaluation to obtain the first stage power consumption evaluation result; if If the abnormal operation trend of the abnormal operation data in the stage working cycle prediction result develops at or exceeds the set trend development rate, then based on the abnormal operation data in the stage working cycle prediction result, the set power consumption evaluation index is used to perform power consumption evaluation to obtain the second-stage power consumption evaluation result; the second-stage power consumption evaluation result is power consumption evaluation data of multiple timing stages; finally, a power consumption evaluation data threshold is set, and if the timing stage power consumption evaluation data is greater than the power consumption evaluation data threshold, the use of the thermoelectric cooler is controlled according to the set adjustment control strategy; the adjustment control strategy includes but is not limited to stopping the operation of the thermoelectric cooler, interrupting the operation of the thermoelectric cooler, and using the thermoelectric cooler for non-high-precision measurement tasks.

[0114] The beneficial effect of the above technical solution is: by adopting the solution provided in this embodiment, the power consumption of the thermoelectric cooler is calculated and evaluated, and the use of the thermoelectric cooler is controlled according to the evaluation result, so that the efficient use of the heating electric cooler can be ensured.

[0115] In one embodiment, the method further includes scheduling the thermoelectric cooler to perform different measurement tasks according to different accuracy requirements of the measurement tasks and in combination with the power consumption state of the thermoelectric cooler and the energy consumption state of the thermoelectric cooler. The specific steps are:

[0116] Obtain the accuracy requirements of the measurement task;

[0117] According to the accuracy requirements, a corresponding matching relationship library with the thermoelectric cooling power consumption state and the thermoelectric cooling energy consumption state is constructed;

[0118] Obtain the accuracy requirements of the real-time measurement task, and based on the corresponding matching relationship library, obtain the real-time power consumption status and energy consumption status of the thermoelectric cooling that match the real-time measurement task;

[0119] Based on the real-time power consumption status of thermoelectric refrigeration and the real-time energy consumption status of thermoelectric refrigeration, the trained neural network model is used to predict the change in thermoelectric refrigeration power consumption and the change in thermoelectric refrigeration energy consumption respectively;

[0120] When the change in the power consumption of the thermoelectric refrigeration reaches the first power consumption threshold, and the change in the energy consumption of the thermoelectric refrigeration reaches the first energy consumption threshold, the state of the thermoelectric refrigerator is marked, and the thermoelectric refrigerator with the marked state is adjusted to a waiting-for-scheduling working state;

[0121] Obtain a demand measurement task, and based on the accuracy requirements in the demand measurement task and the corresponding matching relationship library, match the thermoelectric cooling power consumption state and the thermoelectric cooling energy consumption state of the thermoelectric cooling device in the working state to be scheduled, to obtain a matching first thermoelectric cooling device;

[0122] If there is only one first thermoelectric cooler, the first thermoelectric cooler is scheduled to perform the demand measurement task; if there are multiple first thermoelectric coolers, they are screened based on the time of status marking, and the first thermoelectric cooler that performs the status marking first is scheduled to perform the demand measurement task.

[0123] The working principle of the above technical solution is: in order to better cope with different measurement tasks, the present invention schedules the thermoelectric refrigerator to perform different measurement tasks according to the different accuracy requirements of the measurement tasks, combined with the power consumption state of the thermoelectric refrigerator and the energy consumption state of the thermoelectric refrigerator; first obtain the accuracy requirements of the measurement tasks; then, according to the accuracy requirements, construct a corresponding matching relationship library with the thermoelectric cooling power consumption state and the thermoelectric cooling energy consumption state; obtain the accuracy requirements of the real-time measurement tasks, and based on the corresponding matching relationship library, obtain the real-time power consumption state of the thermoelectric cooling and the real-time energy consumption state of the thermoelectric cooling that match the real-time measurement tasks; based on the real-time power consumption state of the thermoelectric cooling and the real-time energy consumption state of the thermoelectric cooling, use the trained neural network model to respectively predict the change in the thermoelectric cooling power consumption and the change in the thermoelectric cooling energy consumption. amount; when the change in the thermoelectric refrigeration power consumption reaches a first power consumption threshold, and the change in the thermoelectric refrigeration energy consumption reaches a first energy consumption threshold, the state of the thermoelectric refrigerator is marked, and the thermoelectric refrigerator with the marked state is adjusted to a waiting-for-scheduling working state; the demand measurement task is obtained, and based on the accuracy requirements in the demand measurement task and the corresponding matching relationship library, the thermoelectric refrigeration power consumption state and the thermoelectric refrigeration energy consumption state of the thermoelectric refrigerator in the waiting-for-scheduling working state are matched to obtain a matching first thermoelectric refrigerator; if the first thermoelectric refrigerator is single, the first thermoelectric refrigerator is scheduled to execute the demand measurement task; if the first thermoelectric refrigerator is multiple, screening is performed based on the time of state marking, and the first thermoelectric refrigerator that is first marked with a state is scheduled to execute the demand measurement task.

[0124] The beneficial effect of the above technical solution is: by adopting the solution provided in this embodiment, through the scheduling of the thermoelectric cooler, it can provide effective support for executing measurement tasks with different precisions, which is beneficial to improving the use efficiency of the thermoelectric cooler.

[0125] Obviously, those skilled in the art can make various changes and modifications to the present invention without departing from the spirit and scope of the present invention. Thus, if these modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include these modifications and variations.

Claims

1. A method for improving the measurement accuracy of electrical safety detection equipment based on thermal noise control, characterized in that: include: Obtain electrical safety testing equipment for customs inspection and locate the electronic components to be processed on the electrical safety testing equipment; Based on thermoelectric cooler, the electronic components to be processed are cooled down; Based on thermoelectric coolers, the electronic components to be processed are cooled, including: Select and specify a thermoelectric cooler; Collect the temperature of the electronic components to be processed and control the temperature of the thermoelectric cooler; placing a thermally conductive interface material between the thermoelectric cooler and the electronic component to be processed; Perform condensation protection on thermoelectric coolers and electronic components to be processed; The temperature of the electronic components to be processed is collected and the temperature of the thermoelectric cooler is controlled, including: Install a high-precision temperature sensor near the electronic components to be processed to monitor the temperature of the electronic components to be processed in real time; Design a PID temperature control circuit to adjust the operating current of the thermoelectric cooler and maintain the set target temperature; Perform heat dissipation treatment on the thermoelectric cooler; Energy consumption management of thermoelectric coolers; Energy consumption management of thermoelectric coolers, including: A voltage regulator designed to provide a stable DC power supply to the thermoelectric cooler; Design a power module with adjustable current and cooperate with the temperature control circuit to achieve precise temperature control; Calculate and evaluate the power consumption of the thermoelectric cooler, and control the use of the thermoelectric cooler according to the evaluation result; Under non-high-precision measurement conditions, enable the energy-saving mode to reduce the operating power of the thermoelectric cooler or turn off the cooling function; Add filtering to the voltage-stabilized power supply design and increase shielding measures to prevent interference to the circuit during the voltage-stabilized power supply process; Calculate and evaluate the power consumption of thermoelectric coolers and control the use of thermoelectric coolers based on the evaluation results, including: Acquire real-time operation data of the thermoelectric cooler, input the real-time operation data into a set isolation forest model, and output abnormal operation data in the real-time operation data; The long short-term memory network model is used to predict the phase working cycle of abnormal operation data and obtain the phase working cycle prediction results; If the abnormal operation trend of the abnormal operation data in the stage working cycle prediction result does not develop according to the set trend development rate, then based on the abnormal operation data, using the set power consumption evaluation index, power consumption evaluation is performed to obtain the first stage power consumption evaluation result; if the abnormal operation trend of the abnormal operation data in the stage working cycle prediction result develops according to or exceeds the set trend development rate, then based on the abnormal operation data in the stage working cycle prediction result, using the set power consumption evaluation index, power consumption evaluation is performed to obtain the second stage power consumption evaluation result; the second stage power consumption evaluation result is power consumption evaluation data of multiple time series stages; A power consumption evaluation data threshold is set. If the power consumption evaluation data in the timing stage is greater than the power consumption evaluation data threshold, the use of the thermoelectric cooler is controlled according to the set adjustment control strategy; the adjustment control strategy includes but is not limited to stopping the operation of the thermoelectric cooler, interrupting the operation of the thermoelectric cooler, and using the thermoelectric cooler for non-high-precision measurement tasks.

2. The method for improving the measurement accuracy of electrical safety detection equipment based on thermal noise control according to claim 1, characterized in that: Select and specify a thermoelectric cooler, including: Obtain a Peltier element; According to the calorific value of the Peltier element, a Peltier element that meets the set cooling power requirements and the size requirements of the electronic components to be processed is selected as the thermoelectric cooler.

3. The method for improving the measurement accuracy of electrical safety detection equipment based on thermal noise control according to claim 1, characterized in that: Laying down thermal interface materials between the thermoelectric cooler and the electronic components to be processed, including: Adding a thermally conductive interface material with high thermal conductivity between the thermoelectric cooler and the electronic component to be processed; The thermoelectric cooler, the electronic components to be processed and the thermal conductive interface material are fixed by clamps or screws.

4. The method for improving the measurement accuracy of electrical safety detection equipment based on thermal noise control according to claim 1, characterized in that: Condensation protection for thermoelectric coolers and processed electronic components, including: The thermoelectric cooler and the cooling area where the electronic components to be processed are located are sealed to prevent moisture from the air from entering; Place desiccant in the space formed after sealing to absorb residual moisture and prevent condensation.

5. The method for improving the measurement accuracy of electrical safety detection equipment based on thermal noise control according to claim 1, characterized in that: Heat dissipation for thermoelectric coolers, including: Choose to use high thermal conductivity materials to make the heat sink, and use fin design to increase the surface area of ​​the heat sink to improve heat dissipation efficiency; A micro fan is installed on the radiator to implement auxiliary heat dissipation; Design exhaust ducts to ensure smooth air circulation; A heat pipe is added between the heat sink and the thermoelectric cooler to quickly conduct heat and improve the heat dissipation effect.

6. The method for improving the measurement accuracy of electrical safety detection equipment based on thermal noise control according to claim 1, characterized in that: It also includes scheduling the thermoelectric cooler to perform different measurement tasks according to different accuracy requirements of the measurement tasks, combined with the power consumption state of the thermoelectric cooler and the energy consumption state of the thermoelectric cooler; the specific steps are: Obtain the accuracy requirements of the measurement task; According to the accuracy requirements, a corresponding matching relationship library with the thermoelectric cooling power consumption state and the thermoelectric cooling energy consumption state is constructed; Obtain the accuracy requirements of the real-time measurement task, and based on the corresponding matching relationship library, obtain the real-time power consumption status and energy consumption status of the thermoelectric cooling that match the real-time measurement task; Based on the real-time power consumption status of thermoelectric refrigeration and the real-time energy consumption status of thermoelectric refrigeration, the trained neural network model is used to predict the change in thermoelectric refrigeration power consumption and the change in thermoelectric refrigeration energy consumption respectively; When the change in the power consumption of the thermoelectric refrigeration reaches the first power consumption threshold, and the change in the energy consumption of the thermoelectric refrigeration reaches the first energy consumption threshold, the state of the thermoelectric refrigerator is marked, and the thermoelectric refrigerator with the marked state is adjusted to a waiting-for-scheduling working state; Obtain a demand measurement task, and based on the accuracy requirements in the demand measurement task and the corresponding matching relationship library, match the thermoelectric cooling power consumption state and the thermoelectric cooling energy consumption state of the thermoelectric cooling device in the working state to be scheduled, to obtain a matching first thermoelectric cooling device; If there is only one first thermoelectric cooler, the first thermoelectric cooler is scheduled to perform the demand measurement task; if there are multiple first thermoelectric coolers, they are screened based on the time of status marking, and the first thermoelectric cooler that performs the status marking first is scheduled to perform the demand measurement task.

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