Outdoor Ad Display Light Modulation for Audience Reach Measurement
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Solution Overview
Problem
Existing advertising effect measurement systems struggle to accurately assess the impact of visual information on a wide range of observers, as they primarily focus on immediate vicinity and require observers to interact with RFID tags or QR codes, which limits their effectiveness in measuring broader audience reach.
Innovation Solution
An information conveyance effect measuring system that includes a visual information conveyance device emitting light modulated with identification information, a terminal device receiving and demodulating this light to determine its location, and a determination device assessing the transmission range of the visual information based on received identification and location information.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If RFID tags or QR codes are used to measure advertising effect, then the measurement method is simple and low-cost, but the measurement range is limited to immediate vicinity only
Solution Approach 1:
The patent introduces light as an intermediary carrier to transmit advertising information and identification data. Instead of requiring direct interaction with RFID tags or QR codes, the system uses light emission from the display device that can be received by terminal devices at a distance, thereby extending the measurement range without requiring close proximity interaction
Solution Approach 2:
The patent replaces the mechanical/physical interaction system (RFID tags, QR code scanning requiring close contact) with an optical communication system. The display device emits light modulated with identification information, and terminal devices receive this light remotely, substituting the need for physical proximity with optical signal transmission
2Measurement precision
If light emission is used to extend measurement range, then the transmission range is extended, but the device complexity increases
Solution Approach 1:
The patent makes the display device multi-functional by enabling it to not only display visual information but also emit light modulated with identification information for measurement purposes. This eliminates the need for separate measurement devices, reducing overall system complexity while extending transmission range
Solution Approach 2:
The patent combines the advertising display function and the measurement function into a single integrated system. The display device simultaneously performs visual information conveyance and emits identification light, while terminal devices perform both reception and location detection, merging multiple functions into unified components
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 measurement of the conveyance effect of visual information across various ranges by determining the transmission range of the visual information, effectively addressing the limitations of existing systems in measuring broader audience engagement.
Implementation Method 1
a light emitter emitting light modulated in accordance with identification information of the visual information
Implementation Method 2
a light receiver receiving light from the light emitter; a location detector detecting the location of the terminal device when the light receiver receives the light
Data Source
AI summary
An advertisement display device displays an outdoor advertising image and emits light (advertisement ID light) modulated in accordance with the advertisement ID and having the luminance changed temporally in the same direction as the display direction of the outdoor advertising image. Receiving the advertisement ID light, a portable terminal demodulates and decodes it to acquire the advertisement ID and sends advertisement recognition information including the advertisement ID, time, location of the portable terminal, direction from the portable terminal to the advertisement display device, and terminal ID to a server. The server aggregates the advertisement recognition information for each advertisement and for each time window and creates advertising effect information.