Portable Metering Device Location Detection for Audience Monitoring Spillover
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Solution Overview
Problem
Traditional personal portable metering devices (PPMs) face challenges in accurately monitoring media consumption due to issues like spillover and hijacking, where media content from adjacent rooms is detected, leading to inaccurate credit for media consumption, and other environmental factors like varying volume levels and household characteristics affect detection accuracy.
Innovation Solution
The use of location detection technologies, such as GPS and RF triangulation, combined with heuristic-based algorithms and media code interference methods, to determine the precise location of the audience member and media delivery devices, thereby preventing spillover and enhancing the accuracy of media consumption monitoring.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If PPM detects media content from any location, then media consumption monitoring coverage is improved, but measurement precision deteriorates due to spillover detection
Solution Approach 1:
The system divides the monitoring space into multiple zones with different media delivery characteristics. Each zone is associated with specific media delivery devices, and the PPM determines which zone the audience member is in to correctly attribute media consumption. This segmentation allows the system to maintain broad monitoring coverage while ensuring accurate attribution by restricting credit to the appropriate zone.
Solution Approach 2:
The system introduces an intermediary location determination mechanism between the PPM and the media consumption attribution. Instead of directly attributing all detected media content, the system uses location information as an intermediary to verify whether the audience member was in a position to actually consume the media, thereby resolving the spillover problem while maintaining comprehensive monitoring.
2Difficulty of detecting and measuring
If PPM monitors all media signals in the environment, then media exposure detection capability is improved, but reliability deteriorates due to hijacking and spillover effects
Solution Approach 1:
The system performs preliminary location determination before attributing media consumption. By establishing the audience member's zone in advance and comparing it with the zone of the detected media delivery device, the system can reliably filter out spillover and hijacking effects while maintaining the ability to detect all media signals.
Solution Approach 2:
The system uses feedback from location determination to validate media consumption detections. When media content is detected, the system checks whether the audience member's location feedback confirms they were in the appropriate zone to consume that media, thereby maintaining high reliability while preserving comprehensive detection capability.
3Measurement precision
If location determination is implemented to prevent spillover, then media consumption attribution accuracy is improved, but device complexity increases
Solution Approach 1:
The PPM is designed with multi-functionality, combining both media signal detection and location determination capabilities in a single device. This universal approach allows the system to achieve accurate media consumption attribution without requiring separate complex systems, thereby improving precision while managing device complexity through integration.
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 approach allows for more accurate assessment of media consumption by correctly attributing media exposure and reducing errors caused by spillover and hijacking, providing a clearer understanding of audience members' viewing habits and media consumption patterns.
Implementation Method 1
The use of location detection technologies, such as GPS and RF triangulation
Implementation Method 2
The use of location detection technologies, such as GPS and RF triangulation
Data Source
AI summary
Methods, apparatus, and articles of manufacture for using location information to manage spillover in an audience monitoring system are disclosed. In an example method, a first location signal and a second location signal are received substantially simultaneously at a portable metering device. The first location signal is emitted via a first device located at a first location and includes a first signal characteristic associated with the first location. The second location signal is emitted via a second device located at a second location and includes a second signal characteristic associated with the second location. The first location signal or the second location signal is selected based on the first and second signal characteristics. Media monitoring information is generated based on the selected signal.