8 results about "Test protocol" patented technology

The invention belongs to the technical field of network security protocol vulnerability mining, and discloses a protocol fuzz testing method and system based on a potential relationship between states, the method comprises the following steps: in a state modeling stage, tracking directed edges in a tested program state machine to generate a state bitmap, the state bitmap comprising state transition information; in the state selection stage, a state selection problem is modeled as a multi-arm machine optimization problem, and the optimization problem is solved by using an Epsilone-Greedy algorithm and a Thompson sampling algorithm in combination with state transition information. According to the method, the state bitmap is designed to represent the condition of inter-state migration, basic state information is reserved, meanwhile, representation of the state machine is simplified, the mapping relation between the tested protocol state machine and the state bitmap is established, inter-state migration is abstracted into state points in the state bitmap, and therefore the process of constructing and analyzing the tested protocol state machine is simplified.

A predictive diagnostic system (10) for a distributed population of automated external defibrillator (AED) devices comprises a plurality of AEDs (12) and a remote service provider (RSP) computer (14) configured to receive and transmit information pertaining to periodic AED self-tests. Each AED (121 to 12N) is provided with a controller for testing a readiness of the AED according to a self-test protocol. The RSP computer (i) analyzes self-test result data that includes functional measurement values of the periodic self-tests and which includes data from at least one failed AED (12N-2 to 12N) of the plurality, (ii) identifies an indicator of an impending fault or failure predictive of an impending AED device fault or failure in at least one non-failed AED (124) based on the analyzed data, and (iii) remotely modifies the self-test protocol of a sub-set (124) of the plurality of AEDs, based on the indicator, to pre-empt an occurrence of a self-test failure in the AED devices of the sub-set.

The invention discloses an industrial control protocol difference fuzzy test method and system based on protocol consistency verification. The method comprises the following steps: firstly, based on an official specification document of a target industrial control protocol, constructing a formalized baseline protocol finite-state machine, and generating a consistency verification sequence set covering protocol core logic; secondly, performing consistency testing on a plurality of tested protocol implementation entities, identifying and recording behavior deviation between each entity and the baseline model, and generating inconsistency judgment information; further, a differential fuzzy test case is constructed by utilizing the judgment information to generate an auxiliary vector, a targeted variation strategy is designed, and a final differential fuzzy test case set is generated and optimized; and finally, executing testing in parallel in an isolated virtualization environment, and automatically judging abnormal entities and vulnerability trigger points corresponding to the abnormal entities by performing vectorization processing and similarity analysis on response logs of the entities. According to the method, the problems of target fuzziness, low efficiency and high false alarm rate of an existing fuzzy test method are effectively solved, and the accuracy, the efficiency and the automation level of industrial control protocol security testing are remarkably improved.

This application discloses a method and system for high-frequency PCB environmental reliability testing, relating to the field of data processing technology. The method first acquires the electrical reference parameters of the board under test (BUT), and then collects the full-field surface strain tensor field and spatial temperature distribution field under multi-factor conditions. A three-dimensional thermal stress distribution field is obtained through thermo-mechanical coupling analysis, and the material parameter drift is calculated and determined. When the drift exceeds the limit, the signal path deformation matrix is ​​calculated, and connection point displacement data is extracted to assess its interference with transmission continuity and identify potential fault hazards. Based on this, a comprehensive impact report is generated to optimize the test protocol. Finally, the optimized protocol is verified through iterative simulation, and impedance compensation control parameters for correcting the transmission loss of the BUT are generated. Implementing the technical solution provided in this application can improve the accuracy of high-frequency PCB reliability assessment.

The invention provides a DLMS intelligent electric energy meter OBIS data consistency checking system and method. A protocol standard format import module converts OBIS object data in a to-be-tested DLMS intelligent electric energy meter design document into a test protocol file according to a protocol format; the data storage module stores the unified protocol version of the test protocol file in a database; the test module performs OBIS data consistency check on the to-be-tested DLMS intelligent electric energy meter according to the test protocol file and the historical test data in the database; and the result display module stores the test result in a database, and a user can query and export the test result through the module.

The invention provides a pressure test protocol coverage rate detection method and device, equipment and a medium, and the method comprises the steps: carrying out the pressure test of a target test case in response to a test instruction, and obtaining the protocol attribute data of at least two pressure test stages, performing coverage rate calculation on the protocol attribute data of the at least two pressure measurement stages to obtain a target coverage rate of the target protocol; wherein the protocol attribute data is attribute data associated with the target protocol, and the target protocol is deployed in the target test case. According to the technical scheme of the embodiment, the protocol attribute data of the different pressure testing stages are obtained through the multi-stage pressure testing, the protocol attribute data reflect the performance of the target protocol in the different pressure testing stages, coverage rate calculation is carried out on the basis, protocol behaviors in the different pressure testing stages can be comprehensively covered, and the coverage rate of the target protocol is improved. Therefore, the detection precision of the protocol coverage rate in the pressure test is effectively improved, and the method can be widely applied to the technical field of computers.

The application discloses a working condition extraction method and device for fuel cell life evaluation, and the method comprises the following steps: determining the range of an idling interval, a large-load running interval and a small-load running interval under a durability test protocol to be extracted, and a large amplitude of variable load and a small amplitude of variable load; based on various parameters to be extracted, counting the start-stop times, idling time, large-load running time, small-load running time and variable load times in the durability test protocol, and calculating the time and times of each working condition to obtain a vehicle working condition spectrum of the durability test protocol. The application provides working condition spectrum data for a "working condition" test method of fuel cell life evaluation.

The invention relates to a reliability evaluation method and system for an atomization module of a humidifier in the technical field of new-generation information, and the method comprises the steps: processing an interaction relation among parameters through employing a preset stress coupling model according to an obtained environment parameter set, and obtaining an accelerated aging path of the atomization module under a simulated multi-stress condition; if the preliminary life prediction value is lower than the target reliability evaluation standard, the influence of the interaction is recalculated by adjusting thermal cycle parameters in simulation, and an optimized acceleration test condition is determined; according to the determined acceleration test protocol, processing the fusion of historical data and newly collected data to obtain quantitative indexes for product quality control, and judging the stability of the indexes under the interaction effect; and if the quantitative index shows that the stability is insufficient, protocol parameters are optimized by adopting a gradient boosting decision tree algorithm, enhanced prediction accuracy is obtained, and rapid prediction of the real failure mode is realized.