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Low-power point-to-point wireless LoRa device based on time division multiplexing dynamic allocation

A technology of dynamic allocation and time division multiplexing, applied in wireless communication, power management, energy reduction and other directions, can solve problems such as packet loss, and achieve the effect of preventing communication sticking.

Active Publication Date: 2021-01-15
BEIHANG UNIV YUNNAN INNOVATION INST
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] The purpose of the present invention is to provide a low-power point-to-point wireless LoRa device based on time-division multiplexing dynamic allocation, to solve the problem of packet loss caused by the communication between multiple acquisition devices and transparent transmission gateways

Method used

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  • Low-power point-to-point wireless LoRa device based on time division multiplexing dynamic allocation
  • Low-power point-to-point wireless LoRa device based on time division multiplexing dynamic allocation

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Embodiment Construction

[0024] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0025] Specific examples;

[0026] As shown in the figure, a low-power point-to-point wireless LoRa device based on time-division multiplexing dynamic allocation includes a gateway and a front-end LoRa node, the gateway is set to a star structure, and the front-end LoRa node is set to be greater than 3, 1 A gateway is connected to multiple front-end LoRa nodes through signals;

[0027] The gateway of the star structure is a network of star topology, which belongs to the centralized control network. The entire network is controlled and managed by the central node, and the communication between each...

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Abstract

The invention discloses a low-power point-to-point wireless LoRa device based on time division multiplexing dynamic allocation, which comprises gateways and front-end LoRa nodes, and is characterizedin that each gateway is in a star structure; the number of the front-end LoRa nodes is more than 3; the gateway is connected with the plurality of front-end LoRa nodes through signals; a gateway management front-end node module, a dynamic time slice distribution module and a time slice acquisition module are arranged in the gateway; and the gateway management front-end node module, the dynamic time slice distribution module and the time slice acquisition module are connected with the network protocol module. The problem of packet loss caused by communication between a plurality of acquisitiondevices and the transparent transmission gateway is solved.

Description

[0001] Low-power point-to-point wireless LoRa devices based on time-division multiplexing dynamic allocation. technical field [0002] The invention relates to the technical field of LoRa wireless communication equipment, in particular to a low-power point-to-point wireless LoRa device based on time-division multiplexing and dynamic allocation. Background technique [0003] LoRa is one of the LPWAN communication technologies. It is one of the popular technologies specially designed for wireless transmission of the Internet of Things. It maintains the same low power consumption characteristics as FSK modulation, but significantly increases the communication distance. LoRa technology itself has ultra-high receiving sensitivity (RSSI) and super signal-to-noise ratio (SNR). In addition, frequency hopping technology is used to perform frequency shift keying through pseudo-random code sequences, so that the carrier frequency is continuously hopped and the spectrum is expanded to p...

Claims

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Application Information

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IPC IPC(8): H04W4/70H04W28/04H04W52/02
CPCH04W4/70H04W28/04H04W52/0248Y02D30/70
Inventor 郭虓冷杉李奇孙康文
Owner BEIHANG UNIV YUNNAN INNOVATION INST
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