Communication guarantee method for cascade communication net

Abstract

This invention provides a communication guarantee method in cascade communication network used to make main node control every sub node and complete reset treatment composed of setting delay value that is not less than the time difference between the time finishing interactive reset command for main node and the highest level sub node and the time for finishing interactive reset command for the lowest level node; the main node sends in parallel reset command to every sub node; every sub node responses received command and feedbacks the response information to main node and rests after feedbacking time delay value. This invention can simplify complexity and increase treatment efficiency to provide well communication guarantee.

Description

technical field [0001] The invention relates to a communication mode of a cascaded communication network, in particular to a communication guarantee method of a cascaded communication network. Background technique [0002] The current communication network structure mainly includes topological structures such as chain connection, tree connection and ring connection. Figure 1 shows the network model diagram of the tree connection topology; Figure 2 shows the chain connection topology Networking model diagram; as shown in Figure 3, it is a networking model diagram of a ring connection topology; these networking structures shown in Figure 1, Figure 2 and Figure 3 above are all cascade network structures, and in these network structures There is a multi-level cascading situation of each network node, wherein the master node (MN, Master Node) in the cascaded network is used to manage each slave node (SN, Slave Node) in the network; and each slave node SN is also multi-level Leve...

AI Technical Summary

Problems solved by technology

[0008] (1) When processing messages that may affect communication interruptions (such as reset commands in reset processing, etc.) between the master node and each slave node, it is necessary to first understand the physical topology of the entire cascaded communication network and consider the cascaded communication The impact of the physical topology of the network on the processing of messages, so this processing method does not conform to the Open Systems Interconnection (OSI, Open Systems Interconnection) communication rules that describe and implement the communication system from the logical level and the physical level. requirements

[0009] On the other hand, when the master node interacts with each slave node for messages that may affect communication interruption (such as a reset command that will cause the slave node to reset), it must first classify the entire cascaded communication network according to the topology structure, and according to the classification As a result, messages are exchanged with each slave node in batches; but since the processed message itself does not require such logical classification processing for each slave node, this batch processing method will definitely increase the complexity of communication processing

[0010] At the same time, the master node needs to record and update the results of network topology classification in real time, and when the network topology changes, the master node must also keep abreast of the corresponding changes in the network topology, and also improve the mechanism of topology classification and batch processing. To make corresponding adjustments, this will also increase the complexity of communication processing

[0011] (2) Since the master node needs to interact with each slave node in batches, messages that may cause communication interruption, that is, messages that have no logical connection and can be processed in parallel are serially processed, which will inevitably prolong the entire communication The processing time leads to a reduction in processing efficiency; and its extension time will change accordingly with changes in the network topology, resulting in a decrease in the overall performance of the entire cascaded communication network system

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