CN-122027512-A - Method and device for analyzing resource utilization of core processing platform of large amphibious aircraft

Abstract

The invention provides a method and a device for analyzing resource utilization of a core processing platform of a large amphibious aircraft, which belong to the technical field of comprehensive modularized avionics and solve the problem that the prior analysis method possibly causes resource allocation conflict; secondly, determining constraint standards, integrating A664P7 protocol requirements, equipment hardware limitations, component characteristics, ARINC standards and resource utilization ratio specifications, thirdly, analyzing actual allocation data of various resources from a system configuration database, and fourthly, comparing the actual data with the constraint standards to judge whether the actual allocation data exceeds the constraint standards or not, so as to generate a multidimensional report containing actual values, constraint values and unused resource percentages. The comprehensive and accurate analysis of the resource utilization is realized, the resource allocation is ensured not to exceed the equipment capacity and protocol requirements, the stable operation of the core processing platform is ensured, and the data support is provided for the optimal allocation and maintenance.

Inventors

• LUAN JIANZE
• FU LIANG
• LI QINGYI
• ZHOU TINGYU
• DING HAN
• WANG JIALIANG
• ZHANG HE
• HOU BEIBEI
• WANG ZI
• LIU YISHAN
• XIANG WEIWEI
• CHEN SHENG

Assignees

• 中国航空无线电电子研究所

Dates

Publication Date

20260512

Application Date

20251227

Claims (8)

1. 1. The method for analyzing the resource utilization of the core processing platform of the large amphibious aircraft is characterized by comprising the following steps of: The method comprises the steps of defining an analysis range, wherein the analysis range comprises A664 network related resources, RDIU resources and GPM resources in a core processing platform, the A664 network related resources comprise virtual links of an A664 terminal and a switch, COM ports, physical bus bandwidths and switch forwarding and port resources, the RDIU resources comprise an A429 interface, an A422 interface, an A825 interface, an A717 interface, an analog interface and a discrete quantity interface, and the GPM resources comprise storage capacity, partition quantity and task processing occupation time; Determining resource constraint, wherein the resource constraint comprises standard constraint and preset constraint, and the standard constraint comprises a BAG numerical range and MaxJitter range specified by an A664P7 protocol, port number and rate limited by a hardware layer of equipment, storage capacity limit of a component layer, task processing time capability limit, ARINC standard constraint and resource utilization ratio requirement limit; Analyzing various resource actual allocation data from a core processing system configuration database, wherein the actual allocation data comprises virtual link allocation number, COM port use number, physical bus bandwidth utilization rate, RDIU interface occupation number, GPM storage used capacity and task scheduling time consumption; and step four, comparing the actual allocation data of the resources with constraint standards, judging whether the utilization of the resources exceeds the limit, and generating a resource utilization analysis report.
2. 2. The method for analyzing the resource utilization of the core processing platform of the large amphibious aircraft according to claim 1, wherein when the bandwidth utilization of the physical bus is obtained, the test refitted port is excluded, and only the bandwidth allowance of the physical bus between the A664 terminal actually deployed on the large amphibious aircraft and the switch is counted.
3. 3. The method for analyzing the resource utilization of the core processing platform of the large amphibious aircraft according to claim 1, wherein the A664 terminals comprise GPM, RDIU, IDU, SAVMU and TestDev, and the sending virtual link limit, the receiving virtual link limit, the sending COM port limit and the receiving COM port limit of each A664 terminal are defined by an A664 network end system chip.
4. 4. The method for analyzing the resource utilization of the core processing platform of the large amphibious aircraft according to claim 1, wherein in the GPM resource analysis, the storage capacity is set to be an upper limit according to 70% of a storage unit, the number of partitions is not more than 255, the task processing time is not more than 70% of a task period, and the single schedule time is not more than 1 second.
5. 5. A method for analyzing the resource utilization of a core processing platform of a large amphibious aircraft according to claim 1, wherein the BAG value range is 1ms-128ms, bag=2 k is satisfied, and the unit ms, k is an integer of 0-7.
6. 6. A method of analyzing the resource utilization of a core processing platform of a large amphibious aircraft according to claim 1, wherein MaxJitter satisfies the following equation: ; wherein L max,i is the ith virtual 3 The maximum frame length Nbw of link VL is the medium bandwidth.
7. 7. The method for analyzing the utilization of the resources of the core processing platform of the large amphibious aircraft according to claim 1, wherein the switch resource analysis further comprises statistics and constraint verification of the number of forwarding virtual links, the total number of physical layer ports and the number of external ports used.
8. 8. A large amphibious aircraft core processing platform resource utilization analysis device for performing a large amphibious aircraft core processing platform resource utilization analysis method as claimed in any one of claims 1 to 7.

Description

Method and device for analyzing resource utilization of core processing platform of large amphibious aircraft Technical Field The invention belongs to the technical field of comprehensive modularized avionics, and particularly relates to a method and a device for analyzing resource utilization of a core processing platform of a large amphibious aircraft. Background The core processing platform of the large amphibious aircraft is a central hub of an avionics system and is used for bearing key functions such as data calculation, transmission, conversion and system management and control, and the reliability and safety of the execution of the aircraft tasks are directly determined. The platform integrates a comprehensive modularized avionics (IMA) architecture, covers a plurality of replaceable units (LRU) such as a core processing unit (CPM), a Remote Data Interface Unit (RDIU), an external switch (ARS) and the like, relates to complex resource configuration such as A664 (ARINC 664) network communication, multi-type interface data conversion, general Processing Module (GPM) task scheduling and the like, and forms a multi-dimensional and cross-level resource system. The resource types of the core processing platform have remarkable complexity and relevance, namely, from the perspective of resource dimension, the resource types comprise Virtual Links (VL), communication ports (COM ports), physical Bus (PB) bandwidth, switch forwarding resources, multiple types of interface resources such as A429, A717 and discrete amounts of RDIU and computing resources such as GPM storage capacity, partition configuration and task processing time, from the perspective of constraint standard, the technical specifications of A664P7 protocol on bandwidth allocation interval (BAG) and maximum jitter (MaxJitter) are required to be met, the physical limits of hardware equipment on port number, rate and storage capacity are required, and the requirements of software-level ARINC653 standard on partition scheduling and task cycle occupation ratio and the compliance constraint of navigation regulations and enterprise specifications are required. However, the existing core processing platform resource utilization analysis method has the defects that firstly, the resource coverage is incomplete, the traditional method focuses on single type resources in a multi-focus manner, full-dimensional resources such as an A664 network, RDIU interfaces and GPM calculation are not integrated, local resource overrun is easily caused to be undetected, secondly, constraint standards are poor in integration, constraints such as protocol requirements, hardware capacity and software specifications are dispersed, a unified verification system is lacking, whether resource allocation simultaneously meets multiple limits is difficult to accurately judge, thirdly, data analysis and verification efficiency is low, manual statistics or dispersion tool analysis is relied on, actual allocation data of resources cannot be efficiently extracted from a system configuration database, and a filtering mechanism for invalid data such as test modified ports is lacking, so that analysis result accuracy is insufficient, fourth, standardized multi-dimensional report output is not formed, key information such as actual values of resources, constraint values, unused resource proportion is scattered, and the like is difficult to support platform optimization allocation and maintenance decision. The problems may cause resource allocation conflict, unstable system operation, even influence aircraft airworthiness, and severely restrict the reliability and task adaptability of the core processing platform of the large amphibious aircraft. Therefore, a resource utilization analysis method with comprehensive coverage, unified standard and accurate judgment is needed, the difficult problem of resource overrun judgment under complex constraint is solved, and technical guarantee is provided for safe and stable operation of a core processing platform. Disclosure of Invention The invention provides a method and a device for analyzing resource utilization of a core processing platform of a large amphibious aircraft, which aim to solve the problem of resource utilization analysis of the core processing platform, realize comprehensive control of resource allocation and support the examination of the airworthiness compliance of the core processing platform. The first aspect of the invention provides a method for analyzing the resource utilization of a core processing platform of a large amphibious aircraft, which comprises the following steps: The method comprises the steps of defining an analysis range, wherein the analysis range comprises A664 network related resources, RDIU resources and GPM resources in a core processing platform, the A664 network related resources comprise virtual links of an A664 terminal and a switch, COM ports, physical bus bandwidths and switch forwarding and port res