Unlock instant, AI-driven research and patent intelligence for your innovation.

A lora transmission method for backbone n node m redundant transmission

A transmission method and redundant transmission technology, applied in the field of communication control, can solve the problems of inability to realize communication, system paralysis, etc.

Active Publication Date: 2021-11-23
南京钰吉电气科技有限公司
View PDF4 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, when one or more backbone nodes in the system fail, the entire system will be paralyzed and communication cannot be realized.

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • A lora transmission method for backbone n node m redundant transmission
  • A lora transmission method for backbone n node m redundant transmission
  • A lora transmission method for backbone n node m redundant transmission

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0052] Assume that a 3-redundant communication structure of N communication backbone nodes is adopted. The communication method between the backbone node and the backbone node is a step communication that occupies the LoRa channel CH0 (see Figure 4 ). During communication, the structure of the command message sent is shown in Table 1.

[0053] Table 1:

[0054]

[0055]As can be seen from the above table, the message structure includes message header, length, type, direction, source address, destination address and message content. The message header indicates the start byte of the message; the length indicates from the second byte (starting from "type") to the last byte; the type is divided into message type and node type, and generally uses 0x01-0x1f to represent the message Type, can load 32 types of messages, generally use 0x20-0xE0 to indicate the node type, the high three bits of the byte indicate the node type, which can indicate 7 types of nodes; there are four ...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention relates to a LoRa transmission method of M redundant transmission of backbone N nodes. The method proposes a redundant LORA transmission mechanism of M nodes between N backbone nodes, and lists its time-division multiplexing transmission mechanism in detail. And the role of each communication node at different times in the communication, it also explains the response selection of each communication node to the corresponding message in the redundant transmission, and adopts the "time-sharing transmission waiting mechanism" to avoid the collision of LORA signals, that is, any The transmission of a node's message information is allocated at a time when a specific channel has its own unique allocation, and there is a certain time range of delay protection to ensure that the information can be sent completely without interference. There is no other backbone in the system. The node or the node in the layer and the master node can send the message at this moment, which completely avoids the possibility of collision.

Description

technical field [0001] The invention relates to a data redundancy transmission method, in particular to a LoRa transmission method for backbone N node M redundancy transmission, and belongs to the technical field of communication control. Background technique [0002] It is understood that with the continuous development and application of science and technology, SUB1G radio frequency communication technology has begun to enter and affect people's production and life activities. Especially in recent years, as people's demand for smart experience increases, more and more fragmented terminal devices need to be connected to the network to realize interconnection. SUB1G radio frequency communication technology has been used in smart homes, smart cities, smart buildings, smart agriculture, It can be used in various application scenarios such as intelligent transportation. Networking technology is very important in Internet applications, which solves the network interconnection a...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): H04W24/04H04W40/22H04W84/18
Inventor 杨晓松于建东
Owner 南京钰吉电气科技有限公司