12 results about "Test generator" patented technology

A network function configuration and test generation framework are configured to generate a test script indicative of a configuration and test cases for verifying a virtual function implemented in a virtualized computing environment. A test input is received that encodes information for verifying a network function. The information includes identification of a test tool, a target testbed for testing the network function, and network information including parameters for network conditions to be operational during testing of the network function. A data parser translates and formats the test input. The formatted test input in input to a topology discoverer configured to identify a network topology of the testbed and which network functions deployed on the testbed are emulated and which network functions deployed on the testbed are real. A configuration generator generates a configuration file usable to configure applicable network functions and their functionalities.

A network function configuration and test generation framework are configured to generate a test script indicative of a configuration and test cases for verifying a virtual function implemented in a virtualized computing environment. A test input is received that encodes information for verifying a network function. The information includes identification of a test tool, a target testbed for testing the network function, and network information including parameters for network conditions to be operational during testing of the network function. A data parser translates and formats the test input. The formatted test input in input to a topology discoverer configured to identify a network topology of the testbed and which network functions deployed on the testbed are emulated and which network functions deployed on the testbed are real. A configuration generator generates a configuration file usable to configure applicable network functions and their functionalities.

The application discloses an AI accelerator chip PE matrix built-in self-test repair method, and relates to the technical field of AI accelerator chip circuit structure design. The built-in self-test method generates a scan test excitation by using a scan test generator, transmits and outputs a response through a configurable PE operation unit, judges whether the output response is correct or not by using an output response comparator, and judges the row and column addresses of a faulty PE unit by using a fault PE diagnostic device. The built-in self-repair method replaces and repairs the faulty PE unit by using an RPE redundant operation unit, and distributes the corresponding data bus to the RPE redundant operation unit according to the row and column addresses by activating the data bus and the weight data bus distributor. The application realizes the self-test of the PE operation unit and the self-repair of the faulty PE operation unit with a small additional circuit area ratio, thereby improving the yield of the AI accelerator chip and reducing the chip manufacturing cost.

The invention provides an automatic function safety testing device and method, and relates to the technical field of automobile function safety testing. The automatic function safety testing device comprises a main control module; the use case generation and strategy control module comprises an orthogonal test generator and a grade self-adaptive controller, and the orthogonal test generator carries out orthogonalization processing according to the input parameters obtained by the main control module and obtains orthogonal use case data; the level self-adaptive controller obtains strategy configuration data according to the orthogonal use case data and strategy library parameters obtained by the equipment to be tested; the test execution and interface module is used for obtaining fault injection data according to the strategy configuration data and injecting the fault injection data into the to-be-tested equipment; and the formalized verification module obtains formalized verification data according to the test output data obtained by the main control module, and the main control module obtains a function security test result according to the formalized verification data. The automatic function safety testing device can achieve the technical effect of reducing the risk of missing detection.

The application provides a method and device for determining an inertia time constant of a generator set. The method comprises: performing step disturbance on a terminal voltage of a to-be-tested generator based on a first inertia time constant and a first preset threshold, amplifying a synthesized mechanical power integral of a power system stabilizer by a first preset coefficient, and recording a first waveform diagram to obtain a first target value based on a first pole value of the first waveform diagram; updating the first inertia time constant based on a preset adjustment step and the first target value to obtain a second inertia time constant, and then determining a second waveform diagram and a second target value; correcting the second inertia time constant based on a preset adjustment step, the first target value and the second target value to obtain a corrected inertia time constant, and then determining a third waveform diagram and a third target value; and obtaining a target inertia time constant when an absolute value of the third target value is less than or equal to a second preset threshold. The method solves the problem of a large error of a unit inertia time constant in the prior art.

The application discloses a movable aviation power supply detection and maintenance shelter, and belongs to the field of aviation power supply and electric appliance product testing. A driving device in a cabin body is used for driving a generator. An oil injection system in a cooling device supplies oil for a product oil circulation system, the product oil circulation system is used for product oil circulation, and a sliding oil cooling system is used for sliding oil cooling. A test tool is used for coupling and installing a tested generator and the driving device. An analog load is used as an analog device of generator load capacity. A dynamic balancing machine is used for dynamic balancing and calibration of a rotor of a repaired motor product. A motor product maintenance workbench is used for disassembly, inspection, component replacement and assembly of an aviation generator product. An electric appliance product maintenance workbench is used for disassembly, inspection, component replacement and assembly of an electric appliance product. A product detection unit is used for product detection and verification. The application effectively reduces the failure rate of field products, shortens the maintenance cycle, guarantees the aircraft attendance rate and improves the field service support capability.

The application provides a compiler test case priority sorting method based on a text vector and a convolutional neural network. In the training stage, the features of each line of training code are extracted and combined into a vector, multiple line vectors are merged into a matrix, and then the matrix is converted into a pixel image for convolutional neural network training. The training data includes code from different compiler versions that can reveal errors. In the scheduling stage, the same method is used to convert the code to be sorted into an image, which is input into the trained model to obtain the code sorting result. The application predicts the potential of the new test code to reveal errors, thereby determining the priority. The application uses a token-based line-level text vector generation method, which has a faster code feature extraction speed, lower hardware requirements, and does not rely on the internal information of the test code generated by the fuzz test generator, and is suitable for C language test codes of various sources and lengths.

The invention discloses a formalized language-based computer interlocking software development implementation method, which comprises the following steps of: S1, writing a formalized specification by using a formalized language Z language, defining an abstract state of a system through a mode, defining an initial state, writing a Z mode for each operation, and outputting a Z protocol document; s2, performing formalized verification and theorem certification on the Z protocol document generated in the previous step; s3, if the verification is not passed, redesigning the Z protocol document, and if the verification is passed, refining the Z protocol document for multiple times; and S4, automatically generating a test case, test input and expected output covering all boundary conditions by using a Z auxiliary tool CZT in combination with a user-defined test generator according to the verified and refined Z protocol document. According to the method, the defects that ambiguity and ambiguity are caused by adopting a direct development method based on a natural language, strict logical reasoning and proving cannot be carried out, and automatic verification cannot be carried out can be overcome.

The utility model discloses an electrostatic discharge test generator loop cable supporting device, which comprises a fixed support, a fixed seat and a flexible support, the fixed seat is arranged on the fixed support, the flexible support is arranged on the fixed seat, the flexible support is provided with a hollow structure for a cable to penetrate through, and the fixed seat is provided with a cable penetrating hole. According to the utility model, the original loop cable is not damaged, the loop cable only needs to penetrate through the device from the bottom and penetrate out of the device from the top, the flexible structure of the device not only has any bending angle, but also has a supporting structure, and the device is made of ABS / PC-GF, has good supporting performance and is made of a non-conductive material; and a layer of nylon woven material is wrapped outside the internal universal joint, so that the function of protecting the internal universal joint is realized, and the influence of external dust and the like on the internal structure can be completely isolated.

This invention discloses an iterative evolutionary evaluation method using an automated and efficient test generator algorithm. The method generates test cases based on this algorithm, with the following specific steps: First, based on the test metrics of a multi-agent system, all relevant test parameters are selected from the system environment model and behavior model. Second, the value range of each test parameter is defined. Then, the relationships between parameters are divided, and parameter constraints are confirmed to resolve value conflicts. Finally, based on the determined parameters, values, and constraints, parameter grouping is completed, and test cases are generated using the AETG algorithm.

The utility model relates to a generator withstand voltage test system, which comprises an electric console unit, and an electric voltage regulator unit, an excitation transformer unit, an adjustable reactor unit and a capacitive voltage divider unit which are connected with the electric console unit, the input side of the electric voltage regulator unit is connected with a power supply; the primary side of the excitation transformer unit is connected with the output side of the electric voltage regulator; the low-voltage side of the adjustable reactor unit is connected with the high-voltage head end of the secondary side of the excitation transformer unit, and the high-voltage side of the adjustable reactor unit is connected with the capacitive voltage divider unit and the tested generator; and the capacitive voltage divider unit is connected in parallel with the tested generator. An adjustable reactor series connection mode is adopted, and the inductance value of the reactor is smoothly and infinitely adjusted according to the capacitance of the tested generator, so that the tested generator resonates and generates high voltage under the power frequency of 50Hz, and the power supply capacity and the size and weight of test equipment are reduced.

The invention provides a power supply device and method for a movable aircraft engine test bed, and can be applied to the technical field of power supply circuits. The power supply device comprises a first power supply module used for supplying power to the movable aircraft engine test bed through a first power supply circuit; the second power supply module comprises an energy storage assembly, an energy storage branch circuit, a test generator and a transmission branch circuit, the first end of the energy storage branch circuit is connected with the energy storage assembly, the first end of the transmission branch circuit is connected with the test generator, and the second end of the energy storage branch circuit and the second end of the transmission branch circuit are connected with the movable engine test bed; the power supply module is used for supplying power to the movable engine test bed by the test generator through a second power supply circuit comprising a transmission branch circuit under the condition that the test generator serves as a power supply; and under the condition that the generated power of the test generator is greater than the load power of the movable aircraft engine test bed, the test generator supplies power to the energy storage assembly through a third power supply circuit comprising a transmission branch and an energy storage branch.