Low-power-consumption remote networking method

A long-distance, low-power technology, applied in the field of wireless communication, can solve the problems of unpredictable node data transmission time, large channel occupancy, large node communication delay, etc., to achieve communication efficiency and real-time guarantee, large communication delay, The effect of close communication

CN108617005AActive Publication Date: 2018-10-02CHENGDU EBYTE ELECTRONICS TECH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Publication Date
2018-10-02

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Abstract

The invention discloses a low-power-consumption remote networking method. A network node monitors whether the current channel is occupied based on a CSMA / CA channel access mechanism; if the current channel is busy, first delay retreat time is calculated through the stochastic algorithm, the current channel is monitored again after the end of the first delay retreat time, and the step is repeated if the current channel is busy until the network node monitors that the current channel is idle; then second delay retreat time is calculated through the stochastic algorithm, and the current channel is monitored again after the end of the second delay retreat time; the step is repeated if the network node monitors that the current channel is busy; and if two times of monitoring indicates that thecurrent channel is idle, the current node data are immediately transmitted to the host through the current channel. According to the technical scheme, node communication delay can be reduced, the communication success rate and reliability can be guaranteed, the overall node average power consumption can be reduced and the system anti-interference capacity and communication distance can be enhanced.
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Description

technical field

[0001] The invention belongs to the technical field of wireless communication, and in particular relates to a low-power long-distance networking method. Background technique

[0002] Wireless communication technology has developed rapidly in recent years. Traditional point-to-point communication can no longer meet the complex network applications in the current Internet of Things era. However, most of the networking modules currently on the market are based on the ISM frequency band, which occupies a large amount of channels, making the same frequency The anti-interference ability is poor. At the same time, this series of modules has the following disadvantages in practical applications:

[0003] 1. Node communication delay is large;

[0004] 2. The node communication distance is short;

[0005] 3. High power consumption of nodes.

[0006] The current networking technology mostly uses slave time sharing or master polling to realize multiple nodes concurren...

Examples

Embodiment 1

[0042] Embodiment 1: the hardware main chip of this scheme is a micro control unit (MCU) integrating the Cortex-M3 core, and a system-on-chip (SOC) scheme integrating the radio frequency (RF) system of the Cortex-M0 core at the same time, that is, the chip The RF and MCU hardware circuits are integrated, so this solution saves the hardware design between RF and MCU, and improves the stability and reliability of the system to a certain extent.

[0043] A low-power long-distance networking method, based on a CSMA / CA channel access mechanism, is characterized in that it comprises the following steps:

[0044] Step 1: The network node monitors whether the current channel is occupied; if the current channel is busy, calculate the delay backoff time 1 through a random algorithm, wait for the delay backoff time 1 to end, and then listen to the current channel again, if the current channel is busy, repeat the steps 1, until the network node listens to the current channel to be idle; ...

Embodiment 2

[0065] Embodiment 2: the hardware main chip of this scheme is a micro control unit (MCU) integrating the Cortex-M3 core, and a system-on-chip (SOC) scheme integrating the radio frequency (RF) system of the Cortex-M0 core at the same time, that is, the chip The RF and MCU hardware circuits are integrated, so this solution saves the hardware design between RF and MCU, and improves the stability and reliability of the system to a certain extent.

[0066] A low-power long-distance networking method, based on a CSMA / CA channel access mechanism, is characterized in that it comprises the following steps:

[0067] Step 1: The network node monitors whether the current channel is occupied; if the current channel is busy, calculate the delay backoff time 1 through a random algorithm, wait for the delay backoff time 1 to end, and then listen to the current channel again, if the current channel is busy, repeat the steps 1, until the network node listens to the current channel to be idle; ...