Passive Communication Node Backscatter for Battery-Less IoT Data Transfer
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Solution Overview
Problem
The deployment of the Internet of Things (IoT) on a large scale is limited by energy consumption and deployment and maintenance costs of sensors, particularly in applications requiring a large number of tiny, battery-less terminal devices that need to communicate efficiently and sustainably.
Innovation Solution
The implementation of a passive communication node using Wireless Powered Communication Network (WPCN) technology, which enables communication through backscatter technology and multiple protocol layers to facilitate data transmission without active power sources.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Use of energy by moving object
If passive communication nodes use backscatter technology to communicate without active power sources, then energy consumption is reduced and operational sustainability is improved, but device complexity increases due to multiple protocol layers and communication interfaces required
Solution Approach 1:
The patent introduces a second communication node as an intermediary that bridges the passive first communication node and the third communication node. The second node handles complex protocol processing and active communication, while the first passive node simply reflects signals. This mediator approach allows the passive node to communicate without needing full protocol stacks or power sources, reducing its complexity and energy requirements while maintaining functionality through the intermediary's active processing
Solution Approach 2:
The communication system is segmented into distinct functional nodes: a passive first communication node that only performs backscatter, an active second communication node that handles protocol processing and routing, and a third communication node that serves as the endpoint. This segmentation distributes complexity across multiple specialized components rather than requiring the passive node to handle all functions, enabling energy-efficient operation while maintaining system capability
2Quantity of substance
If passive communication nodes are deployed in large numbers for IoT applications, then deployment cost and resource requirements are reduced, but communication reliability may worsen due to limited active processing capabilities
Solution Approach 1:
The active second communication node serves as a mediator that enhances reliability by performing protocol processing, error handling, and data validation. Passive first communication nodes can be deployed in large numbers without compromising reliability because the intermediary actively manages communication quality, corrects errors, and ensures proper protocol adherence, compensating for the passive nodes' limited processing capabilities
Solution Approach 2:
The passive communication nodes perform self-service through backscatter technology, reflecting incoming signals to communicate their status without requiring active transmission or complex processing. This self-service approach allows massive deployment of simple, reliable nodes that contribute to the network while relying on the intermediary for complex functions, achieving both scalability and reliability
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
Enables efficient and sustainable data transmission among IoT nodes, reducing the need for battery replacement or charging, thus lowering operational costs and resource requirements.
Implementation Method 1
The first communication node is connected to a second communication node through the first communication interface. Data transmitted between the first communication node and the second communication node through a protocol layer of a first Internet of things is data processed by a target communication node using a target processing method.
Data Source
AI summary
Provided are a communication node, a data transmission method, and a storage medium. A first communication node includes a first communication interface. The first communication node is connected to a second communication node through the first communication interface. Data transmitted between the first communication node and the second communication node through a protocol layer of a first Internet of things is data processed by a target communication node using a target processing method. The target communication node includes the first communication node and the second communication node, the target processing method is a method for processing data by the first communication node and the second communication node, and the protocol layer of the first Internet of things is a protocol layer included in the first communication node in the Internet of things. The first communication node is a passive communication node.