15results about How to "Fully tested" patented technology

This invention discloses a mapping-guided fuzzing method for loop code, applied in the field of software testing. The method includes: continuously mutating test cases, inputting them into a test case queue, sending them to the program under test (CUPT) with instrumented loop code structures, and outputting a coverage statistics table when the fuzzing termination condition is met; training a deep learning model and back-calculating the weighted distance sum to construct and output a mapping relationship between the byte sequences of test cases and the coverage of the loop code structure; based on the mapping relationship, assigning mutation probabilities to the corresponding byte sequences in the test cases corresponding to the loop code structure coverage and performing mutations to generate child test cases, which are then used as input to the CUPT for fuzzing until the fuzzing termination condition is met, and outputting a fuzzing report. This method mutates the byte sequences of test cases based on mapping relationships, enabling the targeted generation of test cases that improve the coverage of loop code results.

The application relates to a unit test method for a C++ template function and belongs to the software test field. The application identifies a template function and a template class in code and parameter type information and an existing template specialization of the template through static code analysis, then requires that each existing template specialization must be fully tested, and meanwhile, the template function is tested after being self-defined and specialized, so that the full test of each possible used specialization mode is ensured. Finally, the coverage of each specialized function and the template as a whole is verified, and meanwhile, the problem that when different specializations cover different codes, each specialization cannot be 100% covered, and the test sufficiency cannot be described is solved. The application guarantees the behavior correctness of the template function under different type parameters, and improves the accuracy and comprehensiveness of the test.

The application provides a test method, device, electronic equipment and medium for a data structure conversion function, wherein the method comprises: storing first bank business data having a first data structure to a first database table; converting the first bank business data into second bank business data having a second data structure; performing data structure conversion on the second bank business data through a data warehouse conversion system to obtain third bank business data, and storing the third bank business data to a second database table; comparing different types of summary information, different field information and specified value information containing the field information in the first database table and the second database table to determine whether the first database table and the second database table are the same to obtain a database table comparison result; and determining a test result of the data structure conversion function of the data warehouse conversion system according to the database table comparison result. The method is conducive to improving the accuracy of the data structure conversion function test.

The utility model discloses a kind of material surface defect detection devices, it is related to surface defect detection technical field, including pedestal, the upper end of the pedestal is fixed with fixed frame, detection mechanism is installed on the fixed frame, the upper end of the pedestal is equipped with accommodating groove, the inside of the accommodating groove is equipped with lifting mechanism, the upper end of the pedestal is equipped with the positioning mechanism located above accommodating groove, the upper end of the pedestal is fixed with two fixed plates, two the fixed plate is symmetrically arranged at the two sides of accommodating groove, the sidewall of two the fixed plate is fixedly installed with first hydraulic cylinder, wherein the telescopic end of one first hydraulic cylinder is through fixed plate and is equipped with left support mechanism. The utility model can carry out the defect detection of material turning, it is convenient to carry out material turning operation, to improve detection efficiency further, and it has the effect of side circumferential defect detection, to be able to carry out the detection of material sufficiently, it is convenient to use.

The invention discloses a semi-physical closed-loop test system and method for an optical tracking and aiming single machine. The test system comprises the optical tracking and aiming single machine, a satellite-borne control computer, a dynamics simulator, an optical tracking and aiming single machine simulator, an analog data management computer, a telemetering display terminal computer, a database and a power supply. The testing method comprises the following steps: constructing a semi-physical closed-loop testing system, operating ground equipment and a satellite-borne control computer, outputting measurement data by the optical tracking and aiming single machine, accessing the measurement data of the optical tracking and aiming single machine to the semi-physical closed-loop testing system, and evaluating the performance of the closed-loop semi-physical testing method of the optical tracking and aiming single machine. According to the invention, the optical tracking and aiming single-machine simulator is used to verify the effectiveness of the function of the single-machine internal algorithm; meanwhile, stand-alone data are accessed to a closed loop of the control system, and the performance and robustness of the control system are fully tested.

The invention belongs to the field of medical instruments, and discloses a microfluidic sample treatment system which comprises a turntable assembly, an optical detection assembly, a driving mechanism, a liquid adding assembly, a recycling assembly and a controller. The turntable assembly is provided with a plurality of accommodating positions for accommodating micro-fluidic chips; the optical detection assembly detects operation information of the driving mechanism through the light emitting part and the light receiving part; the driving mechanism drives the turntable, the liquid adding assembly and the recycling assembly; the liquid adding assembly is used for adding a sample into the micro-fluidic chip; the recovery assembly is used for recovering the micro-fluidic chip completing the reaction; the controller is used for controlling operation and data processing of the system. The system can efficiently and automatically process a plurality of micro-fluidic chip samples, and the detection efficiency and accuracy are improved.

The application relates to the technical field of environment detection, and discloses an atmospheric environment instant detection device and a detection method. The device comprises a bottom plate, a mounting box fixedly installed on the top of the bottom plate, a gas inlet pipe vertically and fixedly connected to one side in the mounting box, a detection sensor fixedly installed on the inner bottom surface of the gas inlet pipe, a detection assembly arranged above the inside of the bottom plate, and a guide assembly arranged below the inside of the gas inlet pipe. Through the cooperation of the detection assembly, the guide assembly, the gas inlet pipe, the detection sensor, the pushing plate, the blocking plate and the guide plate, the segmented sampling and detection of the gas are realized, the gas is kept in full contact with the detection sensor, the detection under the condition of the change of the gas environment is adapted, the precision of the detection result is improved, and when the gas concentration is low, the blocking time of the blocking plate can be adjusted and extended, and the auxiliary guide of the auxiliary plate can be simultaneously realized.

This invention discloses a gas ball valve with automatic shut-off function for gas leak detection, relating to the field of gas ball valves. Addressing the problems of existing gas ball valves having limited functionality, lacking gas leak detection, failing to provide timely feedback on gas leaks, and exhibiting low safety, this invention proposes the following solution: It includes a ball valve protective tube body, within which a valve ball is disposed. A first valve stem is mounted on the top of the valve ball. A detection frame is mounted on the side of the first valve stem away from the valve ball. A second valve stem is mounted on the side of the detection frame away from the first valve stem. A rotating handle is mounted on the side of the second valve stem away from the detection frame. A threaded rotating rod is mounted inside the valve ball body. This invention features a novel structure, is easy to use, provides thorough gas leak detection with high accuracy and good detection effect, and promptly shuts off the gas ball valve upon gas leak, thus improving the safety of the gas ball valve.

This invention relates to a method and apparatus for testing unmanned delivery vehicles using signal jamming equipment. The method includes: receiving test cases; generating start and end coordinates and confirming the start position; parking the vehicle under test at the start position; configuring the signal jamming equipment; configuring the vehicle and equipment antennas; setting the vehicle to stop when it reaches a preset end coordinate; controlling the vehicle to enter a driving state and travel from the start position to the preset end coordinate; during the driving process, if it is a real-world interference-free mode, using real satellite signals from the test site as multi-satellite test signals; if it is a simulated anti-interference or simulated interference-free mode, the signal jamming equipment generates multi-satellite test signals, and the vehicle controls its driving based on the multi-satellite test signals and outputs a relative displacement sequence; performing actual trajectory derivation when parking; and analyzing the vehicle's positioning anti-interference capability based on the expected test trajectory and the actual test trajectory. This invention can improve the sufficiency of testing the positioning function of unmanned delivery vehicles.

This invention discloses a method and system for detecting internet link quality based on the browser's HTTP protocol, within the field of computer network quality detection technology. The method includes: obtaining the public IP address and geographical location of the target terminal by calling a public IP query interface based on the HTTP protocol; constructing an HTTP request Uniform Resource Locator (URL) containing random path parameters and timestamps; initiating asynchronous TCP connection test requests to multiple pre-configured target nodes using a first object; receiving and storing the response status of each test request; and obtaining latency data for each test request using a timestamp acquisition program. This invention, by constructing an HTTP request with dynamically generated random path parameters, added timestamp query parameters, set request timeout thresholds, and disabled caching mechanisms, probes TCP ports and can monitor latency data through statistical analysis of quality indicator data, effectively improving the testing efficiency of TCP ports and reducing internet usage costs.

The utility model provides a boring cutter detection device, relates to the boring cutter technical field, the boring cutter detection device comprises a cutter detector and two cameras, the surface of the cutter detector is provided with a cutter holder and a display screen, the surface of one side of the cutter detector is fixedly connected with a slide rail, the surface of the slide rail is provided with a mounting rack, and the mounting rack is provided with two cameras. The mounting frame is fixedly connected with the two cameras through an adjusting device, the adjusting device comprises a mounting plate, the mounting plate is fixedly mounted on the inner wall of the mounting frame, rotating rods are rotationally arranged on the inner walls of the two sides of the mounting plate respectively, and the rotating rods are fixedly connected with one side of the mounting frame; two rotating shafts are rotatably arranged on the surface of the mounting plate in a penetrating mode, and when the tool detector is used for detecting a boring tool, the scanning range and the scanning angle of the camera can be further enlarged, so that the boring tool is detected more comprehensively and fully, the detection range is widened, and the practicability of the tool detector is improved.

This invention relates to the field of highway engineering technology, and provides a design method and a method for asphalt mixtures that maintain long-term skid resistance. The method includes the following steps: testing the basic characteristics of multi-lithological aggregates and constructing an aggregate characteristic database; controlling the volumetric blending ratio of the mixed aggregates based on the volumetric method; initially selecting mixed aggregate combinations based on the differences in polishing effects and complementary performance principles of mixed aggregates from different lithologies, and setting a blending ratio gradient; conducting abrasion and polishing tests on the initially selected mixed aggregates, and determining the optimal combination based on the experimental results; designing and verifying the mix proportion of the asphalt mixed aggregates based on the optimal combination; and determining the final mix proportion based on the experimental results through balanced optimization. This approach helps guide the rational selection and optimized mix proportion of mixed aggregates, ensuring the long-term, stable maintenance and even improvement of skid resistance, while simultaneously achieving the goals of saving high-quality aggregates and controlling and reducing costs in the anti-skid surface layer of asphalt pavements.

The application discloses a kind of spatiotemporal prediction model robustness test method, device, equipment and medium, by obtaining the traffic state and prediction label of the spatiotemporal traffic prediction model of the traffic network to be tested, establish the adversarial attack model of robustness test;According to the traffic state of the spatiotemporal traffic prediction model, the traffic label of the spatiotemporal traffic prediction model is estimated;According to the traffic label and the adversarial attack model, the significance of different nodes is calculated;According to the indicator function and the significance of different nodes, determine victim node;For victim node, generate local optimization after the adversarial sample of multiple-step iteration is carried out.It can produce dynamic adversarial sample to attack traffic spatiotemporal prediction model, only need to identify a small amount of victim node to test the robustness of traffic spatiotemporal prediction model, the adversarial sample generated has stronger attack, can fully test the robustness of traffic spatiotemporal prediction model.

The utility model relates to related technical field of fatigue testing device, concretely is a kind of fatigue testing device for welded structure, including bottom plate and top plate, the one end of bottom plate is installed with lower clamping plate, the one end of top plate is installed with first telescopic part, the bottom of first telescopic part is installed with upper clamping plate, the middle part of top plate is installed with second telescopic part, the bottom of second telescopic part is installed with pressing plate, the other end of bottom plate is installed with first right angle lever, first right angle lever is connected with rotating sleeve, one end of rotating sleeve is connected with one end of clamping cylinder, the other end of top plate is installed with torsion assembly, the bottom of torsion assembly is connected with the outer wall of rotating sleeve, press the type fatigue test and torsional fatigue test of the connecting place of first columnar part and second columnar part are realized respectively by pressing block and torsion assembly, the position of first columnar part is adjusted by the bottom of lower clamping plate being installed with rotating frame, test is accurate, convenient.

The utility model discloses a pneumatic actuator inner hole straightness detection device, including device frame, the lower end fixed setting of device frame has the undercarriage, the upper end fixed setting of undercarriage has the support frame, the upper end of support frame penetrates and is connected with the lead screw of rotation, the lower extreme of lead screw and first motor output shaft are connected, the mobile seat is set up in the upper extreme of lead screw and is close to the left fixed setting of cleaning and adjusting frame, before detection, through third electric telescopic handle and push the screw rod, through the cleaning cylinder to the pneumatic actuator inner hole carries out the cleaning, and under the action of fourth motor, third pivot, meshing gear set and transmission shaft, drives the support cylinder rotation, thereby drive the cleaning cylinder rotation, is helpful to the cleaning processing, avoids the influence of the stain to the detection, through second electric telescopic handle and push the clamping frame for pneumatic probe clamping support fixed, under the action of first electric telescopic handle, drives detection adjusting frame to move on the slide rail, is used for the adjustment of pneumatic probe.