Human Sensing IoT Control With Scenario Priority Resolution

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Solution Overview

Problem

Conventional IoT device control methods require users to carry a mobile device for operation, leading to inconvenience when the device is forgotten, affecting user experience.

Innovation Solution

A human sensing-based system using ultra-wide band and millimeter-wave radar modules to detect user presence and control IoT devices without requiring user interaction, allowing seamless operation and conflict resolution between tasks based on scenario priorities.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If automatic control is implemented without requiring user to carry mobile device, then user experience is improved, but system complexity increases due to need for human sensing capabilities

Engineering Contradiction:
Improveuser experienceVSAvoidsystem complexity
Core Design Contradiction:
Ease of operationVSDevice complexity

Solution Approach 1:

The system enables automatic control by having the IoT device itself perform sensing and control operations without requiring user intervention or mobile device carrying. The device uses its integrated human sensing capabilities to detect user presence and automatically executes control actions based on detected scenarios, making the system serve itself rather than requiring external mobile device control.

Inventive Principle:
Principle #25Self-service

Solution Approach 2:

The IoT device is equipped with multiple functional modules including ultra-wide band module for positioning, millimeter-wave radar module for human sensing, and communication modules for network connectivity. This multi-functionality allows a single device to perform sensing, communication, control, and processing tasks that would otherwise require separate components, reducing overall system complexity while improving ease of operation.

Inventive Principle:
Principle #6Universality (Multi-functionality)

2Extent of automation

If multiple scenarios are detected and linked to different tasks, then automation capability is improved, but conflict resolution complexity increases when scenarios overlap

Engineering Contradiction:
Improveautomation capabilityVSAvoidconflict resolution complexity
Core Design Contradiction:
Extent of automationVSDevice complexity

Solution Approach 1:

The system pre-establishes linkage rules that define task priorities for different scenarios before conflicts occur. When multiple scenarios are detected simultaneously, the predetermined priority relationships in the linkage rules automatically determine which task executes, eliminating the need for complex real-time conflict resolution logic and simplifying the automation decision-making process.

Inventive Principle:
Principle #10Preliminary action

3Ease of operation

If human sensing modules are integrated into IoT devices, then ease of operation is improved, but manufacturing cost increases

Engineering Contradiction:
Improveautomatic control capabilityVSAvoidmanufacturing cost
Core Design Contradiction:
Ease of operationVSEase of manufacture

Solution Approach 1:

The patent integrates multiple sensing modules (ultra-wide band module, millimeter-wave radar module) and communication modules into a single IoT device structure. By merging these functions into one unified device rather than using separate components, the system reduces overall component count, simplifies assembly processes, and lowers manufacturing costs while maintaining advanced automatic control capabilities.

Inventive Principle:
Principle #5Merging (Combining)

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

Enhances user experience by enabling automatic IoT device control without user intervention, maintaining device functionality and improving task management through priority-based conflict resolution.

Implementation Method 1

The first electronic device includes an ultra-wide band module and is configured to measure a human body position and positions of the R second electronic devices

Methodology Applied
Scientific EffectTime of flight: Time of Flight

Implementation Method 2

The first electronic device includes a millimeter-wave radar module and is configured to measure a human body position and positions of the R second electronic devices

Methodology Applied
Scientific EffectRadar: Radar

Data Source

PatentEP4383031B1Automatic control method based on human body sensing, and system
Publication Date: 2025.10.08 HUAWEI TECH CO LTD
  • EP4383031B1 patent drawingFigure 1(a)~1(b)
  • EP4383031B1 patent drawingFigure 2~3
  • EP4383031B1 patent drawingFigure 4

AI summary

A human sensing-based automatic control method, an electronic device, and a system are provided, so that when a user approaches an IoT device, the IoT device automatically performs an operation, to improve user experience. The system includes a hub device, a first electronic device (100), and a second electronic device (300). The first electronic device (100) includes an ultra-wide band module and a millimeter-wave radar module, and is configured to measure a human body position and a position of the second electronic device (300) in a house, to determine a current scenario in the house. When the first electronic device (100) detects a plurality of scenarios, and there are conflicting tasks in the plurality of scenarios, the hub device determines a to-be-performed task based on a priority of each scenario. The hub device may further count an activity track, duration of an activity, and the like of a user in each room/region in the house based on the human body position detected by the first electronic device (100).