Low-power communication method based on sleep and wake-up mechanism

A communication method and technology with low power consumption, applied in the field of wireless Internet of Things, can solve the problems such as the inability of the terminal device to communicate, the terminal device cannot wake up normally within its working cycle, and the normal communication between the terminal device and the server is affected, and achieves low power consumption. consumption effect

Active Publication Date: 2021-05-07
武汉智菱物联科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this patent does not consider the situation that the terminal device corresponding to the transmission of the reservation message is not woken up within the transmission time of the reservation message, or wakes up within the transmission time of other terminal devices, and these abnormal conditions will affect the terminal device Normal communication with the server
[0006] For various abnormal situations in practical applications, such as the terminal device cannot wake up normally during its working cycle, the terminal device wakes up during the non-working cycle, and the terminal device cannot communicate for a long time, etc., it is necessary to provide a new communication method , under the premise of low power consumption, the normal communication between the terminal device and the server or main device is not affected

Method used

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  • Low-power communication method based on sleep and wake-up mechanism
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  • Low-power communication method based on sleep and wake-up mechanism

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0056] This embodiment constructs a communication network composed of a master device and 10 sub-devices, the master device is connected to the background server, and the 10 sub-devices form a polling queue, and the time period of each sub-device is 10 seconds, and the main device The time period for polling the polling queue once is 100 seconds, and the master device only wakes up one sub-device each time.

[0057] For the situation that the sub-device does not wake up within the transmission time corresponding to its own number:

[0058] Such as figure 1 As shown, if sub-device 4 wakes up within the transmission time of sub-device 5, the broadcast command it hears is: sub-device 5 is currently transmitting data, and sub-device 6 will be transmitting data next. Sub-device 7, Sub-device 8, Sub-device 9, and Sub-device 10; Sub-device 4 has not heard its own number in the current broadcast command, and it calculates sub-device 6, Sub-device 7, Sub-device 8, Sub-device It takes...

Embodiment 2

[0060] Different from Embodiment 1, this embodiment is aimed at the situation of adding a new sub-device to the communication network:

[0061] Such as figure 2As shown, the background server sends a signal to the main device to request to add a new sub-device 11 to the communication network. After receiving the signal, the main device jumps to the configuration channel where the device to be added is located, and sends a network addition command. The network addition command It includes the number 11 of the sub-device to be added and the working channel 11. After receiving the network addition command, the sub-device to be added jumps to the assigned working channel 11 and listens to the broadcast command of the main device. If the broadcast command heard at this time is: the current data transmission is sub-device 1, the next data transmission will be sub-device 2, sub-device 3, sub-device 4, sub-device 5 and sub-device 6; Device 11 has not heard its own number in the curr...

Embodiment 3

[0063] Different from Embodiments 1 and 2, this embodiment is aimed at the situation where a faulty sub-device is withdrawn from the communication network:

[0064] Such as image 3 As shown, when the master device wakes up the sub-device 3 by polling and does not receive the data transmission packet of the sub-device 3, it will request the data packets not received in this round during the next polling, and in the polling Within the predetermined number of times (the predetermined number of times can be determined by oneself, such as 2 times, 4 times, etc.), the data packets not received in the previous polling will be requested each time. In this embodiment, after polling 2 times, that is, when the master device polls the sub-device 3 for the second time, it has not received the data transmission packet of the sub-device 3 within the transmission time of the sub-device 3, then the The main device sends an alarm command to the background management personnel. If the backgrou...

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Abstract

The invention discloses a low-power communication method based on a dormancy and wake-up mechanism, which includes a communication network composed of a master device and a plurality of sub-devices. The method includes: the master device sends a broadcast instruction, and the broadcast instruction includes the current The number and wake-up time of the wake-up sub-device also includes the number of multiple sub-device that will be polled and woken up behind the current sub-device; The device performs data transmission; when the sub-device that is not currently polled detects that the broadcast command contains its own number, it first enters the dormant state, and then wakes up at the wake-up time corresponding to the self-number to perform data transmission with the main device. The present invention can restore the abnormally faulty communication network in time under the premise that the communication network operates with low power consumption, so as to ensure that the normal communication between the main equipment and the sub-equipment is not affected.

Description

technical field [0001] The invention belongs to the field of wireless internet of things, and specifically relates to a low-power communication method based on a dormancy and wake-up mechanism. Background technique [0002] Existing low-power communication methods mostly use multiple access, mainly including: a time-synchronous scheme and a time-asynchronous scheme based on time-division multiple access. [0003] In the time synchronization scheme based on time division multiple access, the gateway device assigns a fixed time period to each terminal device connected to the same network. The more devices in the network, the longer the time interval between two transmissions of a single device, which will cause a large transmission delay. [0004] The time asynchronous scheme currently has two different processing methods. One of the time asynchronous schemes allows terminal devices to send uplink information in real time according to their own needs, but cannot receive downl...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04W74/00
CPCH04W74/002Y02D30/70
Inventor 黄辉雷俊伍齐林冯喜明叶宏董中
Owner 武汉智菱物联科技有限公司
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