CN110632856A - Simulation test verification system facing process - Google Patents

Abstract

The development of an avionics system is a highly complex project, a test mode basically adopts special test equipment, tool software is not integrated, data flow is not communicated, and the tests of various systems/equipment are disconnected, so that more manual repetitive labor is caused in the test process, the process efficiency is low, and the period is long. The simulation test verification system oriented to the process effectively organizes and unifies models, simulation equipment, physical systems, simulation integrated resources and development verification tools with different interfaces and different protocols, which are distributed in the development process of an avionic system, forms an integrated basic platform with interconnection, cooperative scheduling and resource sharing, can construct a debugging, testing and monitoring system of equipment, subsystems and a large system oriented to requirements, and can also form development, simulation and integration environments oriented to products, subsystems and systems, thereby meeting the requirements of digital design, simulation, integration, testing and verification of electronic systems in the field of military industry.

Description

Simulation test verification system facing process

Technical Field

A simulation test verification system facing to the process is a test verification method and technology in the field of comprehensive avionics systems.

Background

The research and development of the comprehensive avionics system is a highly complex system engineering, comprises a plurality of levels of a whole body, a system, a subsystem and a component, relates to a plurality of disciplines such as a computer, a display, telecommunication, software, a signal, a power supply and the like, and needs to carry out a large amount of analysis comparison and multiple rounds of test tests according to the relationship of mutual connection and mutual restriction among the systems and the disciplines so as to finally determine the state of the avionics system. However, for such a complicated engineering process, the current test mode basically adopts special test equipment, tool software is not integrated, data flow is not communicated, tests of various systems/equipment are disconnected, so that more manual repetitive labor is caused in the test process, the process efficiency is low, the period is long, and the requirements of the current development task of the avionic system are not met.

Meanwhile, the test experiment process of the comprehensive avionics system is very complex, and the problems of intensive tasks, personnel crossing, more coordination work, unsmooth personnel communication, influence on development progress and the like exist. The test flow needs to be standardized, and various complex activities in the test are connected in series; tracking the progress and the state of the task and controlling the progress and the quality; the method has the advantages that test resources and personnel are arranged in a unified mode, the test resources are fully utilized, the test efficiency and the test level are improved, data, documents, codes and cases generated in a test process chain of the avionic system can be seamlessly transmitted with the design, tools, resources, personnel and data required in the test and test stage of the avionic system form an effective whole, all links between the test and test process and the design of the avionic system are communicated in a coordinated mode, and the cross-professional distributed and collaborative test is achieved.

To solve the problems, a set of process-oriented integrated, integrated and sustainable development avionics system simulation test method needs to be constructed, so that the avionics system simulation test method has the characteristics of high openness, flexibility and expandability, and a test mode of 'test templating, tool software integration, test task synergy and test flow normalization' is realized by comprehensively applying technologies such as flow management, resource management and comprehensive control, so that the test physical efficiency, the resource utilization efficiency and the professional working efficiency are improved, and the working normalization and the quality are improved.

Disclosure of Invention

The invention is mainly characterized in that the data management and data interaction among subsystems, equipment, models, functional modules and the like in a complex system are realized through a real-time data pool and a model scheduling plan.

The technical scheme can be divided into four parts, namely a data pool module, an I/O operation module, a data integration management module and a test process management module.

1) Data pool module

The simulation test verification system facing the process adopts a data pool variable to complete an internal format function, and in the system, the data pool is a core area, and the storage, the processing and the data interaction with the system are completed. In addition, the data pool can not only complete data interaction, but also provide services for any stored data, such as data internal to the system, device control data, and system configuration data. The data pool provides a core service mechanism for data interaction between all the components of the simulation test verification system facing the process. Based on this mechanism, data pools occur in many places in the system. For example, the data pool may be present in a real-time CPU, a simulation CPU or a workstation. A data pool, whether used anywhere in a system or in its components, represents a unified, simple data processing concept. In order to embody the advantages of the simulation test verification system, the simulation test verification system for the process has no limitation on the area, the number and the size of the data pool. Usually, the area is determined by the requirements, e.g. transmission speed or available storage capacity, and the system itself does not limit the capacity and size of the pool, which is determined only by the available memory capacity.

In a complex electronic system built, all interactive data, I/O interfaces (various buses, discrete, analog, etc.), models (C/C + +, MATLAB, LABVIEW, RHAPSODY, etc.), faults, stimuli will be managed in a uniform manner in the system, without destroying the original state of the electronic system.

The process-oriented simulation test verification system manages three different types of data pool variables:

□ user-defined data pool variables: the configuration of such data pool variables is completely user controlled. Can be created at any time in the system.

□ System-defined data pool variables: such data pool variables contain system runtime data, such as current time or current frame number. They are created at the time of the system and synchronized with the runtime.

□ data pool variable for a particular device of the system (also called device data pool variable): such data pool variables are defined by certain types of I/O.

2) I/O operation module

The method mainly provides a general I/O processing program of an I/O subsystem of a simulation test verification system oriented to a process and a driver of partial I/O equipment. The driver is suitable for most I/O interfaces in the aviation field.

Based on the above description, we can visually describe the operation process of the simulation test verification system facing the process. Most systems perform different tasks in a certain order, with a minimal architecture. After all tasks in a minimum architecture are completed, the system waits until the time of the whole minimum architecture is finished; the new minimum architecture is then started from cycle to cycle.

The I/O driver converts, stores and transmits the input and output data of the real interface by defining an I/O interface in the system. Part of the configuration is common to all devices, but is determined in detail, mostly on the basis of the specific device. The I/O interface is part of the configuration and is defined by the user. It is mostly reflected in the interface control files of the device.

3) Data integration management function module

The data integration management mainly manages and analyzes data of each stage of testing, and comprises data of stages such as software testing, digital simulation, semi-physical simulation, full physical testing, test flight and the like, so that the problem of managing the data and the process of simulation, analysis, testing, test flight and the like in the testing process is solved. The system carries out integrated management on test data scattered in different stages, different systems and different professions, establishes an enterprise software test verification data management neutral platform by a unified data model, realizes the ordered integration and management of related data such as requirements, designs, codes, cases, records, defects and the like, establishes an incidence relation between the related data, realizes the incidence change and the process management of the data, ensures the synchronization and the coordination of the data, is integrated with a related data management system, and establishes a cross-system data incidence relation management mechanism.

The method is mainly characterized in that a set of test data management system is established by applying the API of the test database. Converting (or adding elements) original data into structured data so as to facilitate the unified storage management of test data; screening out data information concerned by a user (or a system) from a database by adopting a retrieval mode; and various analysis means are adopted to provide intuitive data logic, rules, comparison and results for users.

4) Test process management module

The test process management module can plan, manage and record the whole test process. As an automatic test environment, the automatic test tool can be used for testing, checking and authenticating a virtual model of electronic equipment or actual equipment, and highly automates behaviors in a test process, so that the consistency, integrity and controllability of the whole test period are improved.

The test process pipe functional module consists of the following parts:

□ test scripting language-provides various functions required for a test engineer to define a test, simplifying its programming work to the maximum extent. While providing a system user interface tool and a user program interface.

□ use case editor-allows a user to write test scripts using a graphical interface and organize the test scripts into test events that are ultimately executed in the form of test tasks.

□ signal browser-the support user looks up the desired signal from a designated signal database and enters the result into the script editing module of the test editor with a drag and drop function.

□ compiler-compiles test scripts into executable C-files.

□ executor-selects test tasks to execute in the EITS Global environment and archives test results.

□ documentation device-generates test report with test result. The test result can be displayed on the screen instantly, and can also be a test report in PDF or HTML format.

The invention can realize the management and control of the avionic test flow, the integration of data and the sharing of resources, reduce the manual repeated labor in the test process, improve the working efficiency and quality and shorten the test period of products.

Drawings

FIG. 1 is a management diagram of a data integration management function module

FIG. 2 is a block diagram of a process-oriented simulation test verification system

FIG. 3 is a block diagram of a test process management module

FIG. 4 is a process oriented simulation test verification system operational flow diagram.

Claims (2)

1. A simulation test verification system facing to a process is characterized in that an internal format function is completed through a data pool module; the data pool module is used for storing, processing and interacting data.

2. The process-oriented simulation test validation system of claim 1, wherein the data pool module technique specifically comprises: and the data interaction service mechanism is used for completing a data interaction mechanism between the system and the equipment.

Images