A distributed system resource discovery and task management method based on CoAP protocol

By configuring libcoap of the CoAP protocol on a multi-core DSP platform and customizing the backoff retransmission mechanism and timestamp judgment, the hardware platform limitations of resource discovery and task management under the domestic operating system SylixOS are resolved, efficient resource discovery and task management are achieved, the system load is reduced and the speed is improved.

CN119621277BActive Publication Date: 2025-09-09BEIHANG UNIV
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Patent Information

Application Number
CN202411726156.8
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2024-11-28
Publication Date
2025-09-09
Estimated Expiration
2044-11-28

AI Technical Summary

Technical Problem

The existing technology lacks a distributed system resource discovery and task management method in a multi-core DSP environment where the domestic operating system SylixOS is installed. There are problems with hardware platform limitations and resource decoupling, making it difficult to achieve hardware mutual assistance, multi-task scheduling and resource sharing among multi-core and multi-devices.

Method used

A distributed system resource discovery and task management method based on the CoAP protocol is adopted. By configuring the open source implementation libcoap of the CoAP protocol on a multi-core DSP platform, customizing the backoff and retransmission mechanism parameters, and combining the timestamp resource departure judgment mechanism and the master-slave core interaction mechanism, the perception, discovery and task management of nodes, devices and service resources are realized.

Benefits of technology

It realizes distributed system resource discovery and task management under the domestic operating system SylixOS, reduces the overhead of resource discovery and task management, improves speed and efficiency, reduces system load, and has the advantage of independent source code control.

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Abstract

The present invention is a distributed system resource discovery and task management method based on the CoAP protocol, which belongs to the field of embedded and distributed communications. The method of the present invention includes: building a distributed system framework based on the CoAP protocol on multiple multi-core DSP platforms and a PC; deploying a CoAP client on the PC, deploying a master CoAP server on one core of each multi-core DSP platform, and deploying slave CoAP servers on the remaining cores; the client sends a discovery request and a task management request to the master server, and updates the discovered resource list in combination with the timestamp; the master server responds to the discovery request, informs the client of the current resource information, and sends a task scheduling request to the slave server of this platform and other master servers; the slave server starts the task to be scheduled on its own core. The present invention achieves the effects of low overhead, high speed, and low load for distributed system resource discovery and task management, and has the advantage of independent and controllable source code.
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