Infrared Sensor Tracking Human Movement Trajectories

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Solution Overview

Problem

Current systems lack the capability to effectively analyze human movements, trajectories, and activities within environments, such as stores, to optimize operations and understand customer behavior, and they do not provide real-time data on spatial and temporal patterns of traffic and occupancy levels.

Innovation Solution

A system utilizing infrared (IR) energy data from thermopile sensor modules to detect and track human presence, determine location coordinates, and analyze movements, trajectories, and behaviors without requiring personal biometric data, using a network of sensor nodes, a gateway, and a cloud computing module to provide real-time location, trajectory, and behavior analysis.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Loss of information

If basic machines are used to count people entering and exiting a store, then the number of people can be tracked, but detailed information about customer movements, trajectories and activities within the store cannot be obtained

Engineering Contradiction:
Improvecustomer behavior informationVSAvoidsystem complexity
Core Design Contradiction:
Loss of informationVSDevice complexity

Solution Approach 1:

The patent replaces basic mechanical counting machines with an infrared sensor-based detection system. The system uses IR sensors to detect thermal signatures of customers, automatically tracking their movements, trajectories and activities without requiring complex mechanical counting devices or manual intervention.

Inventive Principle:
Principle #28Mechanics substitution (Replace mechanical system)

Solution Approach 2:

The patent introduces infrared sensors as an intermediary between the customers and the data collection system. These sensors detect thermal radiation from customers and convert it into actionable data about their movements and behaviors, serving as a mediator that captures detailed information without direct contact or complex mechanical interaction.

Inventive Principle:
Principle #24Intermediary (Mediator)

2Measurement precision

If infrared sensor modules are used to detect and track human presence, then detailed movement and behavior data can be obtained, but the system requires multiple sensor nodes, gateways and cloud computing modules increasing complexity

Engineering Contradiction:
Improvelocation tracking accuracyVSAvoidsystem architecture complexity
Core Design Contradiction:
Measurement precisionVSDevice complexity

Solution Approach 1:

The patent divides the detection system into multiple independent sensor nodes, each capable of detecting IR signatures in its local area. These segmented nodes work together to provide comprehensive coverage, with each node handling local detection independently before data is aggregated at higher levels (gateway and cloud).

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The patent adds spatial and temporal dimensions to the tracking system by deploying sensors at multiple locations and collecting data over time. This multi-dimensional approach enables precise trajectory mapping and behavior analysis, transforming simple presence detection into comprehensive movement tracking across space and time.

Inventive Principle:
Principle #17Another dimension (Dimensionality change)

3Productivity

If the system collects detailed spatial and temporal data on customer movements, then business operations can be optimized, but more energy and computational resources are required for data processing

Engineering Contradiction:
Improvebusiness operation efficiencyVSAvoidenergy consumption
Core Design Contradiction:
ProductivityVSUse of energy by moving object

Solution Approach 1:

The patent implements edge computing capabilities at the sensor node and gateway levels, allowing the system to process and filter data locally before transmitting to the cloud. This self-service approach reduces the computational burden on centralized servers and minimizes energy consumption by performing preliminary analysis at the source.

Inventive Principle:
Principle #25Self-service

Solution Approach 2:

The patent applies selective data collection and processing, focusing computational resources on analyzing only the most relevant movement patterns and behaviors. Rather than processing all collected data equally, the system identifies and analyzes key trajectories and activities that provide the greatest business value, reducing overall computational energy requirements.

Inventive Principle:
Principle #16Partial or excessive action

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 accurate tracking and analysis of human activities, optimizing business operations, improving resource allocation, and providing insights into customer behavior and spatial-temporal patterns, without the need for personal biometric data, while being scalable and adaptable to various environments.

Implementation Method 1

determining location coordinates of the object in the space, based on infrared (IR) energy data of IR energy from the object

Methodology Applied
Scientific EffectInfrared detection: Infrared Radiation

Implementation Method 2

determining a temperature of an object in a space, based on infrared (IR) energy data of IR energy from the object

Methodology Applied
Scientific EffectThermal radiation detection: Thermal Radiation

Data Source

PatentUS11774292B2Determining an object based on a fixture
Publication Date: 2023.10.03 BUTLR TECHNOLOGIES INC
  • US11774292B2 patent drawing
  • US11774292B2 patent drawing
  • US11774292B2 patent drawing

AI summary

The system may include a setup app that is configured to locate, track and/or analyze activities of living beings in an environment. The system may be configured for determining a temperature of an object in a space, based on infrared (IR) energy data of IR energy from the object, determining location coordinates of the object in the space, comparing the location coordinates of the object to location coordinates of a fixture and determining that the object is a human being, in response to the temperature of the object being within a range, and in response to the location coordinates of the object being distinct from the location coordinates of the fixture.