A design method of low-power Internet of Things wireless sensing node

Abstract

The invention discloses a design method of a low-power Internet of Things wireless perception node, including a hardware part and a software part, the hardware part includes an MCU, a radio frequency chip, an RTC chip and a data transmission interface, and the software part includes a hardware driver and a basic network protocol , the software part also includes a function module, the function module includes a period configuration module, a multi-clock dynamic switching configuration module, an event structure and a management queue, a process structure and a management queue. The invention can flexibly configure the energy consumption level, meet the fast processing of sudden tasks, adapt to multi-task conversion processing, encapsulate the module functions, and facilitate the expansion and modification of functions.

Description

technical field [0001] The invention relates to communication technology, in particular to a design method of a wireless sensing node of the Internet of Things with low power consumption. Background technique [0002] The wireless sensing node is an indispensable key part of the Internet of Things, which plays a supporting role in the information perception, information acquisition and information transmission of the target object. Wireless sensing nodes are widely used in outdoor information collection, smart water and electricity meters, smart home, smart security and other fields. It is difficult to set up continuous power supply lines, so they must be powered by batteries, which have high requirements for power consumption. [0003] The existing wireless sensing nodes have the following defects: 1. Due to the non-standardization of hardware design and software design, the existing wireless sensing nodes have uneven power consumption standards, and cannot dynamically conf...

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Problems solved by technology

[0003] The existing wireless sensing nodes have the following defects: 1. Due to the non-standardization of hardware design and software design, the existing wireless sensing nodes have uneven power consumption standards, and cannot dynamically configure power consumption levels according to business needs. Adapt to a variety of perception needs, the function design is not modular, and the scalability is not high

2. The existing wireless sensing node software design scheme generally adopts a simple fixed-time state switching mechanism, and switches the working and dormant state through a preset time interval. The design and implementation of this scheme are relatively simple and basic, although It can meet the requirements of low power consumption to a certain extent, but the scalability is poor, and it cannot be dynamically configured later according to the needs

The simple state switching mechanism cannot easily add and modify later functions, and there will be a certain amount of work when matching new sensor modules

[0004] To sum up, the existing wireless sensing nodes cannot dynamically configure the power consumption level according to the demand; they cannot flexibly increase or change module functions

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