RFID Device Simulator Framework for Virtual Testing

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Solution Overview

Problem

The complexity of monitoring inventory and product activity in retail and distribution environments, particularly with RFID systems, requires efficient simulation tools to test and optimize RFID infrastructure without the need for physical devices, as traditional methods are costly and redundant.

Innovation Solution

A device simulator framework that replicates physical RFID devices within an RFID network, allowing for virtual representation and simulation of device interactions, settings, and configurations, including power levels, frequencies, and data readings, enabling testing and optimization without physical deployment.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If physical RFID devices are used for testing and simulation, then testing accuracy and reliability are improved, but cost and time consumption increase significantly

Engineering Contradiction:
Improvetesting reliabilityVSAvoidtesting time
Core Design Contradiction:
ReliabilityVSLoss of time

Solution Approach 1:

The patent creates virtual copies of physical RFID devices through device simulators that replicate the behavior, settings, and configurations of actual RFID readers, tags, and other infrastructure components. These virtual devices can be deployed in simulation environments without requiring physical hardware, thereby reducing testing time and cost while maintaining reliability through accurate behavioral modeling.

Inventive Principle:
Principle #26Copying

Solution Approach 2:

The patent introduces a device simulator framework as an intermediary layer between the physical RFID infrastructure and the testing environment. This framework includes virtual device simulators that mediate between test cases and physical devices, allowing tests to be executed against virtual representations that closely mimic real device behavior, thus reducing the need for extensive physical device deployment.

Inventive Principle:
Principle #24Intermediary (Mediator)

2Adaptability or versatility

If physical RFID devices are deployed for comprehensive testing, then testing coverage is improved, but cost and complexity increase

Engineering Contradiction:
Improvetesting coverageVSAvoidsystem complexity
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The patent implements a universal device simulator framework that can simulate multiple types of RFID devices (readers, tags, writers, programming stations) through a common architecture. The framework supports various device configurations, frequencies, and protocols through programmable parameters, allowing a single simulation platform to provide comprehensive testing coverage across diverse RFID scenarios without requiring separate physical devices for each test case.

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

Solution Approach 2:

The patent enables flexible parameter configuration in virtual device simulators, allowing dynamic adjustment of device settings such as frequency, power levels, antenna characteristics, and protocol versions. This parameter-based approach allows comprehensive testing of different device configurations and scenarios by simply changing software parameters rather than deploying different physical devices, thereby reducing system complexity while maintaining versatility.

Inventive Principle:
Principle #35Parameter changes

3Measurement precision

If physical RFID devices are used for repeated testing, then test results are accurate, but devices wear out and require maintenance

Engineering Contradiction:
Improvetest accuracyVSAvoiddevice maintenance
Core Design Contradiction:
Measurement precisionVSEase of manufacture

Solution Approach 1:

The patent creates durable virtual copies of physical RFID devices that can be instantiated and destroyed repeatedly without wear or maintenance requirements. These virtual devices maintain accurate behavioral models for measurement precision while eliminating the physical degradation issues associated with repeated use of actual hardware, as the simulation software can be reloaded and reconfigured indefinitely without maintenance.

Inventive Principle:
Principle #26Copying

Data Source

PatentUS7868738B2Device simulator framework for an RFID infrastructure
Publication Date: 2011.01.11 MICROSOFT TECHNOLOGY LICENSING LLC
  • US7868738B2 patent drawing
  • US7868738B2 patent drawing
  • US7868738B2 patent drawing

AI summary

The claimed subject matter provides a system and/or a method that facilitates simulating one or more devices respective to disparate vendors, wherein the devices can be associated with an RFID infrastructure. A physical device can wirelessly receive data from a tag. A device simulator can employ a virtual replication of the physical device to simulate the physical device within an RFID network allowing the device to be virtually represented as if physically within the RFID network.