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Method for improving LoRa communication integrity

A technology for integrity and communication failures, applied in services based on specific environments, using return channels for error prevention/detection, digital transmission systems, etc., can solve problems such as data loss, errors, and data failure to be transmitted to the gateway, and achieve assurance Reliability, integrity assurance, and the effect of improving the upload success rate

Inactive Publication Date: 2019-07-30
武汉所为科技有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Due to external environmental interference factors, the communication between the node and the gateway may be unsuccessful or an error may occur, then the collected data cannot be transmitted to the gateway, resulting in data loss

Method used

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  • Method for improving LoRa communication integrity
  • Method for improving LoRa communication integrity

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Embodiment Construction

[0019] The technical solutions of the present invention will be clearly and completely described below in conjunction with the embodiments of the present invention. Apparently, the described embodiments are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0020] Such as Figure 1-2 The format of the node data shown includes NodelID, MsgID, Data and CRC; a corresponding normal communication process includes:

[0021] Step 1. The node puts the actual load data collected this time into the node data. The node data includes at least the node number NodelID, the message number MsgID, the actual load data Data and the check code CRC; put the MsgID stored in the node system into Enter the MsgID field, calculate the CRC, and send it to the gateway afte...

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Abstract

The invention provides a method for improving LoRa communication integrity, and the method comprises: 1, a node putting actual load data collected this time into node data, and the node data at leastcomprising a node number NodeID, a message number MsgID, actual load data Data and a check code CRC; putting the MsgID stored in the node system into an MsgID field, calculating CRC, framing and sending to a gateway; 2, the gateway receiving the node data, storing the MsgID of the node at this time, and returning an OK response to the node after the CRC verification is passed; and 3, after receiving the OK response, the node considering that the communication is successful, and MsgID + 1 in the node system, waiting for the next data acquisition and uploading. According to the method, when thecommunication between the node and the network manager is unsuccessful or has an error, the data acquired by the node can be ensured not to be lost due to one-time communication failure, and the datafailed in retransmission is not simply discarded and is uploaded in the next time window, so that the integrity of the data is ensured.

Description

technical field [0001] The invention relates to a method for improving LoRa communication integrity. Background technique [0002] In the single-channel star LoRa network, it includes a network composed of a LoRa gateway and multiple LoRa nodes. The communication parameters of the LoRa node and the gateway are the same, so they can communicate with each other and interfere with each other. Therefore, time-division multiplexing is generally used to allocate a time window for each node to communicate with the gateway. In each time window, only one node is active. Nodes need to regularly collect sensor data and upload it within their own time window. Due to external environmental interference factors, the communication between the node and the gateway may be unsuccessful or an error may occur, so the collected data cannot be transmitted to the gateway, resulting in data loss. Contents of the invention [0003] The present invention proposes a method for improving the integr...

Claims

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Application Information

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IPC IPC(8): H04L1/16H04L1/00H04W4/38
CPCH04L1/0061H04L1/1607H04W4/38Y02D30/70
Inventor 黎强曹春恒王雪梅
Owner 武汉所为科技有限公司
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