Display Device NFC Antenna Proximity Mapping
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Solution Overview
Problem
Existing information output systems face challenges in providing relevant information to mobile terminals without precise user operation, as they often require precise image capture or updating of tag IDs with changing projected images, and fail to associate information with displayed images or distances.
Innovation Solution
An information output system with a display device and mobile terminal using short-range communication antennas, where the display device manages antenna identification and object location information, and outputs relevant information based on proximity, allowing intuitive information retrieval.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of information
If information is transmitted only with the information video image using superimposed video technique, then the information can be provided to the mobile information terminal, but the captured video image information cannot be transmitted to the mobile information terminal
Solution Approach 1:
The patent combines the information video image and the captured video image into a single superimposed video image that is displayed on the display device. By associating both types of information with the same visual representation, the system enables transmission of both information video and captured video to the mobile terminal through a unified interface, thereby improving information transmission completeness without significantly increasing system complexity.
2Measurement precision
If transmission information is based on image and distance calculated from focusing operation results, then the transmission information can be determined, but the user is forced to capture a precise image
Solution Approach 1:
The patent introduces a display device as an intermediary between the mobile terminal and the information source. The display device receives the captured image from the mobile terminal, processes it to generate a superimposed video image with associated information, and presents it to the user. This intermediary approach eliminates the need for the user to perform precise focusing operations manually, as the system automatically processes the captured image to extract distance and other relevant information.
3Stability of the object's composition
If service data is associated with tag ID and not with projected image, then the service UI can be updated according to tag ID, but when projected image changes, the server must update the correspondence table of tag IDs
Solution Approach 1:
The patent changes the association parameter from static tag IDs to dynamic image-based parameters. Instead of relying on fixed tag ID correspondences that require server-side updates when images change, the system uses the actual captured image and superimposed video image as the basis for data association. This allows the mobile terminal to directly process and match images with their corresponding information without requiring server intervention to update correspondence tables, thereby improving system maintenance efficiency while maintaining data association stability through image consistency.
4Area of stationary object
If multiple antennas are used for short range communication, then the coverage range is expanded, but the complexity of managing antenna identification and object location information increases
Solution Approach 1:
The patent divides the communication area into multiple zones, each associated with a specific antenna. By segmenting the coverage area and assigning each segment to a particular antenna, the system can manage antenna identification and object location information more efficiently. Each antenna handles only the objects within its designated zone, reducing the overall management complexity while maintaining expanded coverage through the collective operation of multiple antennas.
Data Source
AI summary
The present invention provides a technique that makes it possible to output, with a simple operation of a user, information which is relevant to an object displayed by a display device. A display device (10) includes: NFC antennas (150); a managing section (122) for managing, for each of the NFC antennas, antenna identification information and object location information such that the antenna identification information and the object location information are associated with each other; an NFC communication control section (121) for obtaining proximity information; and an information output section (123) for outputting relevant information which is associated with the object location information.