47 results about "Impulse testing" patented technology

The invention discloses a double-pulse test protection circuit, relates to the field of power electronics, and is characterized in that a third switch, a current detection device and a control module are additionally arranged on the basis of an original double-pulse test circuit, and the purpose of the scheme is to collect the current value of a loop where an inductor is located through the current detection device; when the current value of the loop where the inductor is located is larger than a preset current threshold value (the current value of the loop is too high), the first switch is automatically switched off through the control module, and then the whole double-pulse test protection circuit is switched off. The current value in the double-pulse test protection circuit is not increased any more, and the reliability and safety of the scheme are ensured.

The application discloses a kind of fresh stewed bird's nest cold chain transport process temperature field monitoring method and system, belong to cold chain monitoring technical field.Through heat inertia pulse test, heat capacity and thermal resistance are obtained, which are respectively taken as node attribute and edge attribute;Optimize sensor distribution based on the principle of random walk entropy minimization;Construct a dynamically updated directed weighted heat propagation path graph;Using sparse deconvolution combined with system impulse response function matrix, separate event excitation and identify abnormal events;Linearize the heat balance inverse problem in the rolling time domain, reconstruct the product temperature sequence and heat flow vector, calculate the equivalent heat damage dose, and generate the solidified causal directed acyclic graph evidence chain.The above scheme integrates heat inertia into the graph model, realizes event and heat response separation, risk quantification and full-process traceability, effectively improves the accuracy and reliability of cold chain temperature monitoring.

The invention relates to the technical field of semiconductor device testing, in particular to a semiconductor device switching time double-pulse testing device and system capable of improving the precision, and the device comprises an air chamber lower shell and an air chamber upper shell which can move up and down relative to the air chamber lower shell. When the air chamber upper shell descends and is closed and matched with the air chamber lower shell, a closed cavity can be formed, the semiconductor device is arranged in the closed cavity, and a pin of the semiconductor device is in conduction contact with the test conductor under the pressure of the air chamber upper shell; the closed cavity is formed by the air chamber lower shell and the air chamber upper shell, and the air supply pipe and the constant-temperature fan are matched, so that the temperature can be kept more stable when a semiconductor device is subjected to a switching time double-pulse test, and the test precision is improved.

The invention relates to a double-pulse test method and a test circuit. The method comprises the following steps: providing a double-pulse test circuit; the double-pulse test circuit comprises an energy charging circuit and a resonance circuit, the resonance circuit is a half-bridge LC resonance circuit or a full-bridge LC resonance circuit, and the energy charging circuit comprises a power supply and a bus capacitor; the bus capacitor is charged through the power supply; in response to charging the bus capacitor to the target voltage, disconnecting the power supply from the bus capacitor and the resonant circuit; and applying a control voltage to the control ends of the upper bridge and the lower bridge in the resonant circuit, obtaining a gate-source voltage, a drain-source voltage and a drain-source current of each switching tube in the resonant circuit under the control voltage, and obtaining a test result according to the gate-source voltage, the drain-source voltage and the drain-source current. According to the invention, the characteristics of the MOS tube in the LLC converter during actual work can be analyzed. Based on the test result obtained by the method, an important reference basis can be provided for model selection of the primary MOS transistor of the LLC converter, and poor products caused by design errors and improper model selection are avoided.

Systems may include a hot solution supply and a cold solution supply utilizing flow controllers, temperature control units, valve systems, various temperature and pressure sensors, an inspection zone and recirculation systems. A method for thermal management and thermal impulse testing may include configuring a hot and cold solution system and monitoring temperature profiles in each system and alternating the flow of the hot and cold cycles then monitoring the components tested in the inspection zone.

The invention discloses an intelligent decision-making fast sorting method and sorting system for retired power batteries, and relates to the technical field of battery recycling. The method comprises the following specific steps: measuring the open-circuit voltage of a battery monomer, dynamically adjusting a screening threshold according to a temperature compensation algorithm, comparing the open-circuit voltage value with a preset range subjected to temperature correction, and screening out a first batch of candidate battery monomers; applying a multi-order pulse test working condition to the first batch of candidate battery monomers to obtain dynamic response parameters, and screening out a second batch of candidate battery monomers according to the dynamic response parameters; carrying out extended frequency band impedance spectrum test on the second batch of candidate battery monomers to obtain an impedance characteristic matrix; and inputting the open-circuit voltage, the dynamic response parameter and the impedance characteristic matrix into a fuzzy neural network decision model, outputting a sorting decision result, and finally grading the single batteries. According to the method, the consistency and the safety of the cascade utilization battery pack are remarkably improved, and meanwhile, the efficiency and the sorting precision are improved on the basis of reducing the sorting cost.

This invention discloses a gas cylinder pressure pulse testing system, belonging to the technical field of testing equipment. It includes a first heat exchanger, a second heat exchanger, and a first integrated heating and cooling unit. The test medium output from the pressure pulse generating device sequentially passes through the first and second test medium channels and enters the gas cylinder. The heat exchange medium within the first integrated heating and cooling unit sequentially passes through the outlet end of the first integrated heating and cooling unit, the inlet end of the second heat exchange medium, the outlet end of the second heat exchange medium, the inlet end of the first heat exchange medium, the outlet end of the first heat exchange medium, and the inlet end of the first integrated heating and cooling unit, forming a heat exchange cycle. The test medium flowing through the second test medium channel can exchange heat with the heat exchange medium flowing through the second heat exchange medium channel, and the test medium flowing through the first test medium channel can exchange heat with the heat exchange medium flowing through the first heat exchange medium channel. This invention has high temperature regulation efficiency, improving the temperature control effect of the test medium.

The invention relates to the technical field of electronics, and discloses a double-pulse test method, device and equipment and a storage medium, and the method comprises the steps: obtaining multi-source feature information of a tested device to generate a device feature code; performing a double-pulse test based on the device feature code, and collecting time-frequency domain data of the tested device in the test process; performing oscillation feature recognition on the time-frequency domain data to obtain oscillation feature data; adjusting the operation state of the double-pulse test based on the oscillation characteristic data, and terminating the test until a preset suppression target is met or a preset repeated test threshold value is reached, so as to obtain a final test result; according to the invention, on the basis of feature recognition and data acquisition, continuous oscillation adjustment is realized, the optimal test operation state adaptive to the tested device is generated, the core problems of much manual intervention, long test period and poor oscillation suppression effect of the existing double-pulse test are solved, and the stability of the double-pulse test is improved.

The invention relates to the technical field of power supply performance optimization, and discloses a power supply performance optimization method and system based on a high-voltage pulse technology. The method comprises the steps of obtaining an original electrical parameter set of to-be-optimized power supply equipment, extracting high-voltage pulse response characteristics and constructing a power supply dynamic response model; comparing the model with a standard power supply reference model, generating a performance difference feature set to screen key optimization indexes, monitoring real-time operation parameters of equipment, and calculating an association degree matrix of the key optimization indexes and the real-time operation parameters; determining an optimization priority sequence based on the correlation degree matrix, positioning a core optimization node, and executing a high-voltage pulse test to generate a node test data set; and extracting an optimized feature vector from the data set to formulate a high-voltage pulse adjustment strategy, analyzing an adjustment parameter combination in the strategy, and matching a corresponding standard adjustment specification. The method can accurately capture the dynamic performance characteristics of the power supply, and improves the optimization pertinence and normalization.

The utility model discloses a double-pulse test platform capable of preventing connection wires from falling off, and particularly relates to the technical field of double-pulse test platforms, which comprises an experiment table and a plurality of current clamps, and is characterized in that the right part of the upper end of the experiment table is fixedly connected with a control cabinet body, and the left part of the upper end of the experiment table is fixedly connected with an external inductor body; a plurality of bearing plates are fixedly connected to the middle of the upper end of the external inductor body in a linear array distribution mode, the current clamps and the bearing plates are movably installed in a one-to-one correspondence mode, and a plurality of anti-disengaging assemblies are arranged in the middle of the upper end of the external inductor body in a linear array distribution mode. Reset assemblies are symmetrically arranged on the left portion and the right portion of the upper side of each bearing plate, and limiting assemblies and clamping assemblies are symmetrically arranged on the left side and the right side of each reset assembly. According to the double-pulse test platform capable of preventing the connection wire from falling off, the anti-falling assembly is arranged, and after the current clamp is inserted into the slot arranged in the anti-falling assembly, the plug part of the current clamp is pressed.

The application provides a low-temperature double-pulse test platform and method, and relates to the technical field of power device testing.The platform comprises a refrigeration compressor, a cooling platform, an enclosure, an air extraction unit, a temperature acquisition unit, a parameter acquisition unit and a control unit.The control unit is used for acquiring surface temperature information of the power device to be tested, platform temperature information of the cooling platform and thermistor parameters under the action of a calibration pulse during the cooling process, determining the corrected equivalent junction temperature parameters of the power device to be tested, and controlling the double-pulse test loop to perform double-pulse testing when the corrected equivalent junction temperature parameters enter a target test temperature window.The method introduces a calibration pulse and thermistor parameters on the basis of a low-temperature environment, corrects and characterizes the actual thermal state of the power device to be tested, and controls the double-pulse testing time in combination with the target test temperature window, so as to improve the accuracy, consistency and repeatability of low-temperature double-pulse testing.

The invention provides a batch detection device and method for the residual capacity of disposable batteries in a high-altitude environment, and belongs to the technical field of lithium thionyl chloride battery detection. The device comprises a detection device main body and an upper computer, wherein the device main body comprises a power supply unit, a temperature monitoring unit, a control unit, an indication unit, a switching unit, a battery test unit and a parameter acquisition unit; the power supply unit comprises a power interface, a power switch, a switching power supply and a step-down circuit; the temperature monitoring unit comprises a temperature measuring module and a thermocouple. The control unit comprises a controller MCU. The indicating unit comprises a loudspeaker, a switching indicating lamp and a three-color indicating lamp; the switching unit comprises a depassivation switching circuit, a multi-channel switching circuit and a pulse switching circuit; the battery test unit comprises a battery socket and a resistive load; the parameter acquisition unit comprises a pulse test and reference voltage acquisition module. According to the method, the problem that the residual capacity of the disposable battery cannot be accurately detected due to a continuous passivation phenomenon is solved, and accurate prediction of the residual capacity of the disposable battery can be realized.

The invention provides a power battery equivalent circuit model parameter identification method and device and a storage medium, and relates to the technical field of power batteries. The method comprises the following steps: acquiring pulse test data of a power battery under a preset working condition, wherein the pulse test data comprises test current time sequence data and terminal voltage time sequence data; based on the pulse test data and the open-circuit voltage of the corresponding working condition, calculating voltage difference time sequence data used for representing the polarization dynamic state of the battery; taking the test current time sequence data as an input signal, taking the voltage difference time sequence data as an output signal, and obtaining a transfer function model for describing the dynamic characteristics of the battery and parameters of the transfer function model through system identification; and based on a parameter conversion relationship between the physical structure of the equivalent circuit model and the transfer function model, mapping parameters of the transfer function model into polarization resistance and polarization capacitance parameters of the power battery equivalent circuit model.

Provided are a charging method and apparatus, and an electronic device, a computer-readable storage medium, a computer program product and a computer program. The method comprises: a charging device outputting a pulse test voltage to a transmitting coil of the charging device; if pulse test information corresponding to the pulse test voltage meets a test pass condition, outputting a charging test voltage to the transmitting coil and a resonant capacitor; at least on the basis of a transmission quality factor corresponding to the charging test voltage, determining whether to enter reduced-power charging; if reduced-power charging is entered, sending power reduction information to a charged device; the charged device receiving the power reduction information sent by the charging device, and on the basis of the power reduction information, determining target charging power for the charged device; and reducing charging power of the charged device by using the target charging power as a target, and then performing charging.

The utility model provides a lightning impulse testing device for a high-power high-voltage resistor, which is used for solving the technical problem that the conventional lightning impulse testing device can only carry out lightning impulse testing on a high-resistance high-power high-voltage resistor and cannot carry out lightning impulse testing on a low-resistance high-power high-voltage resistor below dozens of ohms. According to the lightning impulse testing device of the high-power high-voltage resistor provided by the utility model, the pulse capacitor is arranged in the power supply module, and the pulse capacitor is composed of a plurality of pulse capacitors; the lightning impulse test of the high-power high-voltage resistor with different resistance values can be realized by simply adjusting the connection mode of the plurality of pulse capacitors in the pulse capacitor or increasing or decreasing the number of the pulse capacitors, and a rapid and efficient lightning impulse measurement mode is provided for the high-power high-voltage resistor with a wide resistance value range.

The invention discloses an inductance control system, a pulse test circuit and a power semiconductor. The control system comprises an inductance control circuit. A first voltage sampling point is arranged on a switch branch connected with the load to be tested; a second voltage sampling point is arranged on a switch branch connected with a load inductor, and meanwhile a current monitoring device is arranged on the branch; a voltage monitoring device is arranged, and branch voltage is obtained according to the potential difference between the first voltage sampling point and the second voltage sampling point; the control platform is connected with the current monitoring device and the voltage monitoring device; the control platform receives a switch control instruction when the voltage monitoring device and the current monitoring device monitor that the voltage and the current are both zero; controlling the switches on the two branches to be closed, and executing a pulse test process for the to-be-tested load; and after the execution is finished, the control platform controls the switches on the two branches to be switched off, and the inductor switching efficiency is improved.

The invention discloses a double-pulse test method, which relates to the technical field of power module test, and comprises the following steps: S1, building a double-pulse test platform; s2, setting parameters; s3, executing a double-pulse test; s4, exporting test parameters; and S5, parameter verification. According to the double-pulse test method, by optimizing the design of a test platform, electromagnetic interference is effectively reduced, the accuracy of waveform and parameter measurement is ensured, the width of the first pulse and the test inductance are quantitatively calculated through a formula, it is guaranteed that the test current accurately reaches a target value, and a foundation is laid for switch parameter extraction; moreover, a test voltage increasing criterion, waveform monitoring key points and a verification process after driving parameter adjustment are defined, consistency and reliability of test results are ensured, finally parameters such as switching loss, voltage spike and delay time are comprehensively extracted, actual characteristics of the power module are directly reflected, and the test accuracy is improved. And a key reference is provided for converter design such as drive circuit optimization and heat dissipation design.

The invention provides a vehicle battery internal resistance health degree estimation method and device, a controller and a vehicle. The method comprises the following steps: acquiring a plurality of impedance spectrums and a plurality of pulse test data of a battery of a vehicle; acquiring a first internal resistance of the battery at a preset reference temperature and a reference SOC according to the plurality of impedance spectrums; acquiring a second internal resistance of the battery under the reference temperature and the reference SOC according to the multiple pulse test data; and calculating the internal resistance health degree of the battery according to the first internal resistance and the second internal resistance. The method is used for achieving the effects of accurately estimating the internal resistance of the battery, improving the health degree estimation accuracy of the internal resistance of the battery and further optimizing the multi-aspect performance of the vehicle.

The invention provides a hydraulic pulse testing device and method with power matching and variable waveform output, and relates to the field of pressure pulse tests.In the testing device, by switching reversing of an electromagnetic reversing valve and matching of a first energy accumulator and a second energy accumulator, large liquid power is instantly provided for a tested piece to form water hammer waves, and the testing efficiency is improved. And through reversing of the electromagnetic reversing valve and matching of the first two-position three-way electromagnetic ball valve, the second two-position three-way electromagnetic ball valve and the two-position two-way electromagnetic ball valve, the control mode of flexibly switching the whole oil way is achieved. The test method comprises an inlet bypass throttling opening size test, an outlet throttling opening size test, a pressure impact forward test and a pressure pulse forward closed-loop test. The instantaneous high-power requirement of a high-pressure large-cavity test is met through the low-power hydraulic pump, a composite oil way device integrating open-loop control and closed-loop control is developed, pressure-resistant pulse tests of various hydraulic elements are supported at the same time, and the equipment applicability is improved.

The invention discloses a data center liquid cooling quick connector interchangeability and reliability test method, and relates to the technical field of data center liquid cooling, and the method comprises the steps: S1, key dimension measurement; s2, high and low temperature alternating testing; s3, carrying out a cold and hot impact test; s4, vibration and impact testing; s5, carrying out a corrosion resistance test; s6, pressure pulse testing; s7, voltage drop testing; s8, testing connection force and disconnection force; s9, carrying out an air penetration test; s10, testing fluid loss; s11, durability testing; and S12, carrying out blasting test. According to the data center liquid cooling quick connector interchangeability and reliability testing method, a set of systematic and complete testing method is constructed, the testing environment, the testing process, the special testing tool and other key elements are covered, a plurality of connector key performance indexes are screened and determined to serve as the judgment standard of the testing result, and wide applicability is achieved.

This invention relates to the field of lightning impulse technology, and more particularly to a method and system for testing lightning impulse on a crossarm. The method includes: applying a minimum impulse voltage to discharge the crossarm at any preset position using an impulse voltage generator; acquiring the waveform of this minimum impulse voltage using an oscilloscope; obtaining the actual value of the minimum impulse voltage based on the waveform; calculating the lightning impulse insulation strength at the preset position of the crossarm based on the discharge path of the crossarm relative to ground and the actual value of the minimum impulse voltage, until the lightning impulse insulation strength at each preset position of the crossarm is obtained; and fitting the lightning impulse insulation strength at all preset positions to obtain a functional relationship characterizing the relationship between the preset position and the lightning impulse insulation strength. This functional relationship can effectively guide the use of crossarms in oil pipeline power supply lines, playing a crucial role in ensuring the reliable and stable operation of oil pipeline stations.

The application provides a double-pulse test voltage overshoot protection method, device and system, relates to the technical field of module testing, and is characterized in that the method comprises the following steps: determining a test working condition of double-pulse automatic testing, testing a plurality of preset working condition points under the test working condition, collecting load current, load voltage and turn-off speed of each test, wherein the load voltage under the test of any working condition point does not exceed a threshold value; determining a change curve of the turn-off speed with the load current under the test working condition according to the test of the preset working condition points and performing curve fitting, and further calculating the stray inductance under each test to fit; obtaining real-time load current corresponding to a target working condition point, and determining a target turn-off speed; wherein the target working condition point is a working condition point after the plurality of preset working condition points; determining a target load voltage; when the target load voltage exceeds the threshold value, stopping the test of the target working condition point, and solving the problem that voltage overshoot may occur in the existing double-pulse test process and there is a great safety hazard.

The utility model relates to a test fixture, in particular to an annular piezoresistor pulse test fixture, which comprises a rotating plate, a fixed frame, a first stepping motor, a guide rail, a pulse test device and the like. One side of the fixing frame is fixedly connected with a fixing plate, the fixing plate is provided with a pulse testing device, the fixing plate is slidably connected with a connecting plate, one end of the connecting plate is rotatably connected with a pulse testing head, the pulse testing device is electrically connected with the pulse testing head through a connecting wire, and a first stepping motor is installed in the fixing frame. And an output shaft of the first stepping motor is connected with a rotating plate. According to the utility model, through the design of the rotating plate and the guide rail, annular varistors of different specifications are allowed to be conveniently placed on the device for detection, and through the cooperation of the second cylinder and the clamping plate, the annular varistors can be effectively fixed without replacing or adjusting equipment parts, so that the universality and the flexibility of the equipment are improved.

The application discloses a double-pulse test method, and relates to the technical field of power module testing, and comprises the following steps: S1, a double-pulse test platform is built; S2, parameter setting; S3, double-pulse test is executed; S4, test parameters are derived; and S5, parameter verification. The double-pulse test method effectively reduces electromagnetic interference by optimizing the design of the test platform, ensures the accuracy of waveform and parameter measurement, quantitatively calculates the first pulse width and test inductance through a formula, guarantees that the test current accurately reaches a target value, lays a foundation for switch parameter extraction, and clearly defines test voltage increment criteria, waveform monitoring points and a verification process after driving parameter adjustment, thereby ensuring the consistency and reliability of test results. Finally, parameters such as switch loss, voltage peak and delay time are comprehensively extracted, which directly reflects the actual characteristics of the power module and provides key references for converter design, such as driving circuit optimization and heat dissipation design.

The application relates to the technical field of surge testing, in particular to a surge pulse response test method for a high-voltage voltage-dependent resistor, which comprises the following steps: obtaining voltage data of the high-voltage voltage-dependent resistor in the whole surge pulse response test process; dividing the whole test process into multiple time intervals; obtaining voltage disturbance factors of the time intervals according to voltage variation characteristics when the time intervals are disturbed by parasitic inductance and ringing phenomena and voltage variation characteristics when the time intervals are disturbed by thermal drift and aging effects, so as to obtain filtering thresholds of the time intervals, and then filtering voltage data of the time intervals. The application adaptively obtains the filtering thresholds of the time intervals, improves the filtering effect of the voltage data in the surge pulse response test process, and further improves the accuracy of the surge pulse response test result of the high-voltage voltage-dependent resistor.

The utility model relates to a lamp electronic pulse test generating circuit which comprises a lamp to be tested, a test voltage switching module, an analog quantity generating module, an optocoupler control module and an output level control chip. In the test voltage switching module, a first switch and a second switch are connected with a first high-voltage power supply, and a third switch and a fourth switch are connected with a second high-voltage power supply. In the analog quantity generation module, a pin 4 of an analog quantity generation chip is connected with a first high-voltage power supply in the test voltage switching module; and a pin 7 of the analog quantity generation chip is connected with a second high-voltage power supply in the test voltage switching module. A first optocoupler, a second optocoupler and a third optocoupler in the optocoupler control module control the first switch, the second switch, the third switch and the fourth switch to be connected through a NOT gate isolation chip. Compared with the prior art, the system has the advantages of high flexibility, high accuracy, high safety and the like.

The application discloses a modeling method and system based on improved dispersion type Angelov, relates to the technical field of semiconductor device modeling, and constructs an improved dispersion type Angelov model current equation, including a drain current equation and a dispersion current equation; a transistor without dispersion and a transistor with dispersion parameter are extracted by using a pulse voltage current test method and a pulse test method with a pre-pulse respectively; the transistor without dispersion and the transistor with dispersion parameter are substituted into the drain current equation and the dispersion current equation respectively, the total drain source current of the transistor is calculated, and the simulation and the actual measurement difference of S parameters of the transistor under multi-bias are described by adding topological circuit parameters; optimization iteration is carried out on fitting parameters in the current equation, an optimal current equation is obtained, and finally, the improved dispersion type Angelov model of the transistor is obtained. The dispersion current equation is added, so that the S parameters of the transistor under different biases can be better simulated, and the modeling precision is improved.

The application relates to the technical field of power supply performance optimization, and discloses a power supply performance optimization method and system based on high-voltage pulse technology. The method comprises the following steps: obtaining an original electrical parameter set of a power supply device to be optimized, extracting high-voltage pulse response characteristics and constructing a power supply dynamic response model; comparing the model with a standard power supply reference model, generating a performance difference characteristic set to screen key optimization indexes, monitoring real-time operation parameters of the device, and calculating a correlation degree matrix of the key optimization indexes and the real-time operation parameters; determining an optimization priority sequence based on the correlation degree matrix, positioning a core optimization node, and performing a high-voltage pulse test to generate a node test data set; extracting an optimization characteristic vector from the data set to formulate a high-voltage pulse adjustment strategy, analyzing an adjustment parameter combination in the strategy, and matching a corresponding standard adjustment specification. The method can accurately capture power supply dynamic performance characteristics, and improves optimization pertinence and standardization.

The invention discloses a double-pulse test tool, and relates to the technical field of double-pulse test tools, the double-pulse test tool comprises a double-pulse test capacitor plate, a laminated circuit board is installed on the double-pulse test capacitor plate, and an energy storage capacitor electrically connected with the laminated circuit board is installed at the lower end of the double-pulse test capacitor plate. And the energy storage capacitor is used for storing energy to replace a traditional high-power direct-current source. The double-pulse test tool is composed of an energy storage capacitor, a decoupling capacitor, a thin-film capacitor and a laminated circuit board, the energy storage capacitor provides energy required by double pulses, and an external high-power direct-current source is not needed; the design of the thin-film capacitor, the decoupling capacitor and the laminated circuit board can provide a low-impedance discharge loop, so that the loop stray inductance can be effectively reduced; the energy storage capacitor, the decoupling capacitor and the tested power module can be fixed on the double-pulse test capacitor plate through screws, and the tool has the advantages of low stray inductance, convenience in carrying and the like.

The invention relates to the technical field of integrated circuit power consumption testing, in particular to an integrated circuit power consumption testing system and method. The method comprises the following steps: setting a dynamic sampling control strategy for the integrated circuit; based on the dynamic sampling control strategy, pulse testing is carried out on the integrated circuit, IR Drop distribution calculation is carried out, and local power consumption voltage calibration grid points are generated; dynamically analyzing an instantaneous power consumption component space heat map according to a local power consumption voltage calibration grid point, and performing temperature field thermal evolution processing to generate dynamic coupling temperature stable field data; and evaluating an electromigration original risk index through the local power consumption voltage calibration grid point and the instantaneous power consumption component space heat map, and performing interconnection line risk state mapping to obtain an integrated circuit risk map. According to the invention, high-precision real-time measurement of power consumption distribution of the integrated circuit is realized, and hot spot areas and electromigration risks in the integrated circuit are accurately evaluated based on a differential processing strategy of an active area and a passive area.