26 results about "Test timing" patented technology

The invention relates to a parallel test task scheduling method for a multi-target equipment distributed test system, and belongs to the technical field of scheduling methods. The invention provides a parallel test task scheduling method for a multi-target equipment distributed test system and aims to solve the problems that current equipment models are continuously increased, the number and complexity of equipment test tasks are obviously increased, a traditional test method is long in test time and low in resource utilization rate, and equipment test requirements at the current stage cannot be met. The method can obviously shorten the test time and improve the resource utilization rate, and comprises the following steps: step 1, describing an equipment parallel test task scheduling model by adopting a mathematical method; step 2, determining a constraint relationship of the test task on test time sequence and resources and a constraint condition satisfied between the test task and the test resources; 3, determining a fitness function corresponding to the test time and the resource utilization balance degree, and designing an overall fitness function; and step 4, solving the fitness function.

The invention provides a garbage collection testing method and device, electronic equipment and a storage medium, and the method comprises the steps that a garbage collection triggering instruction from an external testing tool is received, and the garbage collection triggering instruction comprises a target identifier of to-be-collected data; in response to the garbage collection triggering instruction, starting garbage data collection operation on a data space corresponding to the target identifier; and after garbage collection is completed, a garbage collection completion signal is returned to the external test tool. By introducing a garbage collection mechanism actively triggered by an external test tool, the problems of uncontrollable test opportunity, limited scene coverage and the like caused by the fact that a traditional storage system GC test depends on internal condition triggering are effectively solved, a tester is allowed to accurately specify a target data space and trigger collection according to needs, and the test efficiency is improved. Redundant time consumption of automatic GC of a passive waiting system in a traditional method is avoided.

The application discloses a kind of tangential frost heaving force test methods of cold region pile foundation, belong to cold region pile foundation frost heaving prevention and control technical field, the test method of the application is in the top of test pile Design load is applied and is kept, and in the time point when freezing depth and frost heaving reach maximum, obtain annual maximum unit tangential frost heaving force, by the determination of dangerous section, obtain the maximum tangential frost heaving force that pile body bears, namely the most unfavorable load state that pile foundation faces in a year, can be directly used as the key design control value of pile foundation security guarantee, fundamentally avoid the problem of data randomness and insufficient representation caused by improper test timing, so that key design parameter originates from real annual most unfavorable working condition, provide more scientific and reliable basis for subsequent frost heaving prevention and control and stability checking.

The invention discloses a cold region pile foundation tangential frost heaving force testing method, and belongs to the technical field of cold region pile foundation frost heaving prevention and control. According to the testing method, a design load is applied to the top of a test pile and kept, the annual maximum unit tangential frost heaving force is obtained at the time point when the frost depth and frost heaving reach the maximum, and the maximum unit tangential frost heaving force is obtained by determining a dangerous section; the maximum tangential frost heaving force borne by the pile body, namely the most unfavorable load state faced by the pile foundation in one year, can be directly used as a key design control value for guaranteeing the safety of the pile foundation. The problem of insufficient data randomness and representativeness caused by improper test opportunities is fundamentally avoided, key design parameters are derived from real annual worst working conditions, and a more scientific and reliable basis is provided for follow-up freezing pulling prevention and control and stability checking calculation.

The present invention relates to a parallel test task scheduling method for a multi-target equipment distributed test system, and belongs to the technical field of scheduling methods. In view of the continuous increase in the number of equipment models, the number and complexity of equipment test tasks have increased significantly. Traditional test methods have long test time and low resource utilization, which cannot meet the current equipment testing needs. A parallel test task scheduling method for a multi-target equipment distributed test system is provided. The method can significantly shorten the test time and improve resource utilization, and includes the following steps: Step 1, using a mathematical method to describe the equipment parallel test task scheduling model; Step 2, determining the constraint relationship between the test task in the test timing and resources, as well as the constraint conditions satisfied between the test task and the test resource; Step 3, determining the fitness function corresponding to the balance between the test time and resource utilization, and designing the overall fitness function; Step 4, solving the fitness function.

The invention provides a multi-channel star network chain channel simulator testing device and method, and relates to the technical field of satellite communication. Multiple test tasks of a multi-channel star network chain channel simulator can be used as target test tasks one by one according to a test time sequence through a display control module; calling at least one target communication interface of the target test task from a plurality of communication interfaces through a signal transceiving module; measuring a target measurement parameter of the target test task based on the at least one target communication interface through a measurement module; receiving a measurement value of the target measurement parameter through a calculation module, and calculating a test result of the target test task according to the measurement value; storing a test result of the target test task through a storage module; and after the multiple test tasks are tested, obtaining and outputting test results of the test tasks from the storage module through the display control module. According to the invention, the measurement result accuracy and the measurement efficiency of the multichannel star network chain channel simulator can be improved.

The invention relates to a mobile and portable box type hydrological emergency flow measurement cableway and a rapid erection method thereof, and solves the problems that the existing hydrological emergency flow measurement cableway is insufficient in maneuverability and portability, and the measurement opportunity may be delayed. The device comprises a box body, a winding drum base is arranged at the position, close to one end, in the box body, a main winding drum and an auxiliary winding drum are coaxially arranged on the winding drum base, the shaft end of a main winding drum shaft and the shaft end of an auxiliary winding drum shaft are aligned and provided with detachable couplings, the same steel wire rope is wound around the main winding drum and the auxiliary winding drum, and one end of the steel wire rope is positively wound around the main winding drum; the other end of the steel wire rope is reversely wound on the auxiliary winding drum, the middle section of the steel wire rope is sleeved with a traction wheel, and the traction wheel is fixed on the opposite bank of the river channel; two directional wheels are installed on the top of the end wall of the end, corresponding to the winding drum base, of the box body, and the two sections, extending out of the main winding drum and the auxiliary winding drum, of the steel wire rope are erected on the directional wheels respectively. The hydrological emergency flow measurement cableway and components thereof are integrated in one box body, the main winding drum shaft and the auxiliary winding drum shaft can be mutually locked or separated through movement of the coupler, the hydrological cableway is rapidly erected, the steel wire rope is tightened, and the steel wire rope runs back and forth across a river.

The application relates to a voltage spike safety pretest system, a method and a medium, and relates to the airborne equipment airworthiness test technical field.The voltage spike safety pretest system comprises a spike signal generation module, a signal coupling and decoupling module, a data synchronization monitoring module and a central control module.The spike signal generation module generates a stabilized voltage spike signal according to preset spike test parameters and in combination with an application test scene.The signal coupling and decoupling module decouples and isolates a power grid, couples the stabilized voltage spike signal to a power supply circuit of a to-be-tested airborne equipment, and obtains an input spike voltage signal.The data synchronization monitoring module collects and cleans the input spike voltage signal according to a voltage spike test timing, calculates an input spike voltage amplitude, and extracts a transient spike voltage value.The central control module analyzes a voltage spike test item, extracts spike test parameters, generates a spike switching timing, cooperatively controls each module, analyzes the input spike voltage amplitude and the transient spike voltage value, and generates a device spike test table.The waveform distortion rate is reduced, and the control precision is improved.

The application relates to a test control method and device, computer equipment and a computer readable storage medium. The method comprises the following steps: receiving a first test timing sent by a host; acquiring a station state flag, which comprises a sending flag or a pause flag; if the station state flag comprises the sending flag, sending the first test timing to a test board card, so that the test board card sends an excitation signal to a device under test according to the received first test timing, and tests the device under test; and if the station state flag comprises the pause flag, pausing the sending of the first test timing to the test board card until the station state flag changes from the pause flag to the sending flag. The method can improve data processing efficiency.

The application relates to the field of integrated circuit design and test technology, and discloses a scan chain port layout optimization method, device and electronic equipment. The core of the method comprises the following steps: an intelligent nearest matching step of a scan chain port and a scan chain, in which a nearest unassigned scan chain is searched as a candidate by sequentially selecting a scan chain port, and it is judged whether the scan chain is matched according to a preset distance constraint threshold, so that a first matching relationship is established; and a step of performing dynamic port rearrangement on the unassigned ports and scan chains that are not successfully matched to generate a second matching relationship. Through a two-stage adaptive matching mechanism, physical perception optimization of the scan chain connection relationship is realized, wiring congestion and interconnection delay are significantly reduced, and the robustness of the design process and the convergence of the test timing are improved.

The application provides a multifunctional test point allocation method and system based on an adaptive switch matrix, relates to the technical field of electronic testing, and realizes dynamic connection of physical probes and logical test points by acquiring integrated circuit topology information to construct a switch matrix; the same probe is allocated to different test points in different time periods by using time division multiplexing technology, test response signals are collected and deviation values are calculated; a fault point is determined based on the deviation, the influence degree of the fault point on surrounding nodes is analyzed, and a test priority level is obtained; the test timing is dynamically adjusted according to the priority level, high-priority nodes are preferentially tested, the switch state is controlled to realize intelligent allocation of test resources, and the test efficiency and fault coverage are improved.

The invention relates to the technical field of integrated circuit design and testing, and discloses a scan chain port layout optimization method and device and electronic equipment. The method comprises the following steps: sequentially selecting scan chain ports, searching an unallocated scan chain with the shortest physical distance as a candidate, and judging whether the unallocated scan chain is matched or not according to a preset distance constraint threshold value, so as to establish a first matching relationship; and executing dynamic port rearrangement on the ports which are not successfully matched and the scan chain to generate a second matching relationship. Through a two-stage adaptive matching mechanism, physical perception optimization of a scan chain connection relationship is realized, wiring congestion and interconnection delay are significantly reduced, and robustness of a design process and convergence of a test time sequence are improved.

The application discloses a kind of test vector automation generation methods, which generates test vector based on test case, comprising: S1, writing test case, writing test case in simulation platform, the full coverage simulation verification of function and performance to chip circuit, confirm chip timing correct, provide basis for the script of link vector generation;S2, simulation timing check, write automation vector generation script, test clock cycle, test timing, the input state of all pins, input excitation, output state and expected output value are defined in the script;S3, link script, link test case in automation vector generation script, run simulation in simulation platform, automatically generate the test vector of specified format when simulation ends, the test vector reflects the input and output state of pin with clock cycle change in simulation process;S4, conversion or optimization is carried out to test vector, forms different test platform special vector format, and test vector is debugged and verified in test system.

A method for constructing a hierarchical clock tree for an integrated circuit is disclosed. The method for constructing a hierarchical clock tree for an integrated circuit may include: constructing a clock distribution network on a first layer; pushing the clock distribution network to a second layer; implementing a partitioned clock tree in a partition on the second layer; and calculating a combined timing of the clock distribution network and the partitioned clock tree on the second layer. The step of implementing the partitioned clock tree may include: constructing a partitioned clock tree in a partition on the second layer; calculating a test timing of the partitioned clock tree; calculating a target timing constraint of the partitioned clock tree based on the timing of the clock distribution network and the test timing of the partitioned clock tree; and adjusting the timing of one or more of the partitioned clock trees based on the target constraint.

The invention provides a multifunctional test point distribution method and system based on a self-adaptive switch matrix, and relates to the technical field of electronic testing, and the method comprises the steps: building a switch matrix through obtaining the topological information of an integrated circuit, and achieving the dynamic connection of a physical probe and a logic test point; distributing the same probe to different test points in different time periods by using a time division multiplexing technology, collecting test response signals and calculating a deviation value; determining a fault point based on the deviation, analyzing the influence degree of the fault point on surrounding nodes, and obtaining a test priority level; the test time sequence is dynamically adjusted according to the priority level, high-priority nodes are preferentially tested, the on-off state is controlled to achieve intelligent distribution of test resources, and the test efficiency and the fault coverage rate are improved.

The application relates to an engine timing system wear verification bench test method, which replaces the original timing system in an engine with a test timing system to form a test engine; obtains a test speed interval and a test load working condition; obtains a test cumulative running number of the test speed interval in vehicle road spectrum data of the original engine; performs a bench test of the test engine; after the bench test is completed, the wear risk of the test timing system is analyzed and evaluated. The application greatly improves test verification efficiency.

The present invention discloses a method for executing dynamic tests of spacecraft based on telemetry data, which relates to the field of data adjustment technology. First, the telemetry data of each data source is collected and tested and analyzed, and the telemetry data of multiple data sources of the spacecraft are subjected to real-time benchmark alignment and data interpretation, thereby identifying the validity and accuracy of the data. Finally, based on the interpretation results and the average duration of the telemetry control instructions, the acquisition strategy of the telemetry data is optimized to ensure the efficiency and accuracy of the data acquisition process, which helps to ensure the accuracy and reliability of the spacecraft dynamic test. The timing of the telemetry data is guaranteed by means of low-complexity time performance. Furthermore, a method of using the telemetry data sent by the tested software as a timing control point and performing timing synchronization control on the automatic test tool and the test target machine through the timing control engine avoids test result errors caused by test timing mismatch.

The invention discloses a network fault simulation method and device, equipment and a storage medium. In the scheme, a network fault simulation configuration file is obtained, and the file predefines a mapping relation between a trigger file used for triggering execution of a fault scene and a network fault scene and a network operation sequence corresponding to each scene. And monitoring a preset monitoring path, and when it is monitored that the trigger file matched with the mapping relationship is created, determining a corresponding network fault scene. And calling a corresponding network operation sequence from the configuration file based on the scene and executing the network operation sequence. According to the technical scheme, the file system event is used as a drive, accurate linkage of network fault simulation and the service state is achieved, and the accuracy and the automation level of the test opportunity are improved. The mapping relation and the operation sequence are defined through the configuration file, a complex scene can be flexibly defined without modifying codes, the construction and maintenance cost is reduced, and therefore the automation level of network testing and the scene construction efficiency are improved.

A method of performing a system authentication action associated with an exposure apparatus or a component of the exposure apparatus is disclosed. The method includes obtaining test timing data and reference timing test data related to one or more test timing parameters, each test timing parameter describing a corresponding system action duration, each system action duration describes a duration of a corresponding system action of the exposure apparatus or a component of the exposure apparatus; and identifying the exposure apparatus or a component of the exposure apparatus according to one or more quality performance parameters based on a comparison of the test timing data to the reference timing test data.

The present invention relates to the technical field of insulated gate bipolar transistor monitoring, and an insulated gate bipolar transistor adaptive monitoring method based on multi-objective optimization, comprising: calculating a test timing matching similarity set of test fault timing data and training fault timing data, judging whether there is a target test timing similarity greater than a matching judgment threshold in the test timing matching similarity set, if not, updating the initial matching period, if so, identifying the target test fault type sequence, adjusting the original index matching weight sequence according to the judgment accuracy, obtaining the target index matching weight sequence, judging whether there is a target current timing similarity, if not, updating the initial matching period, if so, performing a fault warning according to the target current fault type. The present invention can solve the problems of poor monitoring efficiency and low fault identification accuracy in the current IGBT monitoring method.

The utility model provides a test device and circuit for aging test of a power supply product, and the device comprises a main control chip, a storage chip, a display circuit, a function key, an input isolation circuit, a sound-light alarm circuit, and a temperature sensor. The isolation circuit is used for receiving an output signal of a to-be-aged test product and carrying out numerical detection on the output signal, the sound-light alarm circuit is used for carrying out sound-light alarm after abnormity is detected, the display circuit is used for displaying and feeding back test timing time, and the storage chip is used for storing temperature values and voltage values of all circuits in a test. The main control chip is used for carrying out data receiving and control on the testing device circuit, and the function key is used for starting and stopping testing.

The invention provides a variable rigorous coefficient method for verifying storage reliability of a composite material structure. The variable rigorous coefficient method comprises the following steps: step 1, estimating parameters of a performance degradation model of the composite material structure; step 2, equivalent load mapping and variable rigorous coefficient construction under the condition of variable storage period; and step 3, a reliability index verification method considering the variable obturation coefficient. Aiming at the problem that the storage reliability of the composite material structure is difficult to accurately verify, verification test data under different moments and different load conditions are analyzed, the utilization efficiency of various test data is remarkably improved, and the dependence of a traditional obturation method on the test time sequence and the strict consistency of the load conditions is avoided. The method is suitable for verifying the long-term storage reliability index of the composite material structure complying with various degradation laws, is wide in application range, and has theoretical innovation and engineering practicability. The method is simple in calculation, low in operation difficulty and convenient for engineering application.

This invention discloses a liquid cooling testing method, apparatus, equipment, storage medium, and product. The method includes: in response to receiving a preset off-season verification trigger command, obtaining the remaining power capacity of an energy storage power station; wherein the energy storage power station includes multiple liquid cooling systems corresponding to each battery cluster; determining the number and timing of tests for the liquid cooling systems to be tested in the energy storage power station for off-season verification based on the remaining power capacity and the rated power required for each liquid cooling system in the energy storage power station to perform off-season verification; and controlling the temperature collected by the shielded temperature sensor of each liquid cooling system to be tested based on the test timing, and performing off-season verification based on a preset virtual temperature. This invention provides an efficient test planning for the liquid cooling systems corresponding to each individual battery cluster in a large-scale energy storage liquid cooling system, ensuring that the off-season verification process is safe and reasonable.

The invention discloses an MIL environment test method for a vehicle control unit, and the method comprises the steps: building an integrated model of a VCU and an MIL environment through simulink, and enabling all signals of the VCU to be directly connected into the MIL environment for correlation; performing one-to-one correspondence on the test case modules according to division of labor of the VCU function modules, defining a test time sequence for each module, and sequencing according to the test time sequence; performing automatic process compilation on the test case of each function module, and performing automatic test case serial number definition on each test case to form a test link; and automatically testing the test link, performing result feedback according to the module serial number, the use case serial number and the abnormal use case serial number, and generating a test report for output. According to the invention, the secondary matching workload of the MIL environment can be reduced, and the working efficiency of the MIL environment test is improved.

The invention provides an optical module time sequence signal test system and method.The system comprises a control host, a power source, a control test board, an oscilloscope, a module test board and a light source module, the power source is used for supplying power to the whole test system, and the control host is connected with the oscilloscope and the control test board; the module test board is provided with a first connector used for being connected with a module to be tested and a second connector used for being connected with the control test board, the first connector is electrically connected with the second connector, an optical receiving end of the module to be tested connected to the module test board is connected with the control test board through an optical fiber line, and the module test board is electrically connected with the control test board. An output port of the control test board is connected with an oscilloscope, and the oscilloscope is used for recording test time sequence waveform data. The automatic test system can automatically execute a series of test operations including signal channel switching, trigger signal generation, photoelectric time sequence analysis and the like, and the test efficiency and precision are greatly improved.

The present application relates to a kind of multi-target cooperative test method, device, electronic equipment and storage medium;Method includes: the heterogeneous test case uploaded by user is analyzed;According to the analysis content, the standardization target entity behavior instruction sequence with uniform structure corresponding to the test case is generated;Based on current communication link state, by adaptive selection adaptation channel, the behavior instruction in the target entity behavior instruction sequence is respectively issued to each target entity under current test scene according to test timing logic and is executed;The test working state of the target entity in real time monitoring test process, when the target entity fails, execute fault handling process.This scheme significantly improves the vehicle-road cloud automation test efficiency and reliability in multi-target concurrent scene.