Fire-fighting data transmission method based on LoRa star network polling nested networking

A data transmission method and star-shaped technology, applied in the field of Internet of Things, can solve the problems of many fire data monitoring nodes, short wireless transmission distance, large data transmission volume, etc., and achieve long polling cycle, collision resolution and high transmission efficiency Effect

Pending Publication Date: 2020-07-28
ZHEJIANG UNIV OF TECH
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Problems solved by technology

[0004] In order to overcome the shortcomings of the above-mentioned fire data monitoring nodes, the large amount of data transmission, the traditional data transmission method cannot be dynamically

Method used

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  • Fire-fighting data transmission method based on LoRa star network polling nested networking
  • Fire-fighting data transmission method based on LoRa star network polling nested networking
  • Fire-fighting data transmission method based on LoRa star network polling nested networking

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Embodiment Construction

[0020] Below in conjunction with accompanying drawing, the present invention will be further described

[0021] refer to Figure 1 ~ Figure 3 , a kind of fire data transmission method based on LoRa star network polling nested networking, comprises the following steps:

[0022] Step ①: The LoRa slave node at the fire cylinder end and the LoRa slave node at the hidden danger point send data to the LoRa central node at the receiving end, and at the same time, the LoRa central node at the receiving end sends data to the main LoRa aggregation node;

[0023] Step ②: The LoRa central node at the receiving end returns a confirmation message after receiving the data, and the LoRa aggregation master node returns a confirmation message after receiving the data;

[0024] Step ③: Determine whether the data volume of the LoRa slave node at the fire cylinder end and the LoRa slave node at the hidden danger point has reached the upper limit n of the slave node of the system, and at the same ...

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Abstract

The invention relates to a fire-fighting data transmission method based on LoRa star network polling nested networking, which comprises the following steps that 1, a fire-fighting gas cylinder end LoRa slave node and a hidden danger point LoRa slave node send data to a receiving end LoRa center node, and the receiving end LoRa center node sends data to a LoRa aggregation total node; 2, the LoRa center node of the receiving end returns confirmation information after receiving the data, and the LoRa aggregation total node returns the confirmation information after receiving the data; (3) whetherthe data volumes of the LoRa slave node at the fire-fighting gas cylinder end and the LoRa slave node at the hidden danger point reach the upper limit n of the system slave node or not is judged; andwhether the data volume of the LoRa center node of the receiving end reaches the upper limit n of the LoRa center node of the system receiving end or not is judged, if not, the steps 1 and can be circulated 2, and otherwise, one cycle period is ended. According to the invention, fire-fighting data transmission does not need wiring, the transmission distance is long, and the current complex fire-fighting data acquisition environment is adapted.

Description

technical field [0001] The invention relates to the field of the Internet of Things, in particular to a LoRa wireless networking method, in particular to a LoRa wireless networking transmission method for fire data. Background technique [0002] With the rapid development of society, today's buildings are getting higher and higher, and the internal structure is becoming more and more complex. The single-point fire monitoring and alarm system is no longer competent for today's actual development. The fire monitoring and alarm system presents the characteristics of systematization and multi-point distribution. Multi-node distributed network management and data transmission are becoming more and more common in today's fire protection systems. The fire monitoring and alarm system has extremely high requirements on the real-time and reliability of fire environment data, so it is particularly important to seek a reliable and stable fire environment data transmission network. [...

Claims

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Application Information

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IPC IPC(8): H04W24/02H04W28/04H04W84/18
CPCH04W24/02H04W28/04H04W84/18
Inventor 陈建黄林李锦春
Owner ZHEJIANG UNIV OF TECH
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