IoT Localization via Gateway Intermediary and Cloud Processing
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Solution Overview
Problem
Localization of IoT devices within heterogeneous systems remains a challenge, particularly for resource-constrained devices lacking GPS functionality, which are common in IoT systems that require both indoor and outdoor positioning with varying device capabilities and power constraints.
Innovation Solution
A system utilizing IoT gateways and wireless access points with localization engines that leverage radio connectivity and cloud-assisted localization, enabling both indoor and outdoor localization of fixed and mobile devices without the need for GPS on individual IoT devices, using proximity-based guidance and data processing to determine device locations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If GPS functionality is added to IoT devices for localization, then localization accuracy is improved, but device complexity and power consumption increase
Solution Approach 1:
The patent introduces gateway devices and wireless access points as intermediary components that perform localization functions centrally rather than requiring GPS hardware in each IoT device. The gateway receives signals from multiple access points and computes device locations, acting as a mediator that enables localization without adding complexity to individual IoT devices.
Solution Approach 2:
The gateway device and wireless access points serve multiple functions: they provide network connectivity, perform signal processing, enable localization for multiple devices simultaneously, and support both indoor and outdoor environments. This multi-functionality eliminates the need for dedicated GPS hardware in each device while maintaining localization capabilities.
2Measurement precision
If GPS functionality is added to IoT devices for localization, then localization accuracy is improved, but power consumption increases
Solution Approach 1:
The gateway and access points act as energy-intensive intermediaries that handle all localization computations and signal processing. Individual IoT devices only need to transmit simple presence information and receive location results, dramatically reducing their power consumption compared to running GPS receivers continuously.
Solution Approach 2:
The system enables IoT devices to receive localization services without possessing localization capabilities themselves. Devices simply participate in the network and automatically obtain location information through the gateway's processing of signals from access points, eliminating the need for power-hungry onboard GPS receivers.
3Adaptability or versatility
If cloud-assisted localization is used, then localization capability is provided for resource-constrained devices, but system complexity increases
Solution Approach 1:
The cloud-based localization service acts as a centralized intermediary that receives presence information from IoT devices, processes signals from multiple wireless access points, and computes device locations. This centralizes the computational complexity in the cloud rather than requiring sophisticated processing in individual resource-constrained devices.
Solution Approach 2:
The patent replaces the need for complex onboard processing hardware in IoT devices with cloud-based computational resources. Instead of equipping each device with GPS and processing capabilities, the system uses networked access points and cloud computing to provide localization, substituting physical hardware complexity with distributed network infrastructure.
4Adaptability or versatility
If radio connectivity-based localization is used instead of GPS, then indoor localization is enabled, but measurement precision may be reduced
Solution Approach 1:
The system merges data from multiple wireless access points to determine device location. By combining presence information from multiple access points and using triangulation or multilateration algorithms, the system achieves sufficient accuracy for indoor environments where GPS signals are unavailable, balancing versatility with acceptable precision.
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
This solution provides accurate localization for a wide range of IoT devices, including those with limited resources, enabling asset tracking and other location-based services across diverse environments while minimizing power consumption and maintaining device functionality.
Implementation Method 1
receive a wireless signal from a device that includes presence information corresponding to the device
Data Source
AI summary
A wireless access device is provided that includes at least one processor, an antennae, and a localization engine. The localization engine is executable by the at least one processor to determine a location of the access device, receive a wireless signal from a particular device that includes presence information corresponding to the particular device that lacks self-localization functionality, and determine a location of the particular device based on the location of the access device and the presence information.