Object Searching System Using Ultrasonic Locator Tags
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Solution Overview
Problem
People often struggle to find items like cellphones and keys before going out, leading to forgotten items, and existing solutions do not effectively assist in locating these items.
Innovation Solution
An object searching method and system that uses voice interaction, where a device receives user messages, analyzes object names, detects locator distances and directions, generates voice messages based on this information, and broadcasts the location to help users find specific items.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of time
If traditional manual searching methods are used, then users can potentially find items, but it consumes excessive time and causes user anxiety
Solution Approach 1:
The patent replaces manual mechanical searching with an automated electronic system comprising search devices, locator tags, and a server. The system uses electronic signal transmission and processing to automatically locate items, substituting the mechanical action of manually searching through spaces with an automated electronic localization system that provides instant position information.
Solution Approach 2:
The patent introduces a server as an intermediary between the search device and the locator tags. The server receives position information from locators, processes the data, and sends search instructions to the search device. This intermediary coordinate system enables automated item location without requiring direct user intervention in the searching process.
2Productivity
If automated search systems are implemented, then searching efficiency improves, but system complexity increases
Solution Approach 1:
The patent divides the automated search system into distinct functional segments: locator tags attached to items, search devices held by users, and a central server for coordination. Each segment performs a specific function (tracking, searching, and coordinating respectively), allowing the complex system to be managed through modular components that can be independently optimized and maintained.
Solution Approach 2:
The search device serves multiple functions: it displays position information, provides directional guidance, and offers voice instructions. The locator tags simultaneously track position and communicate with both the search device and server. This multi-functionality reduces the need for separate specialized devices, thereby managing system complexity while maintaining high productivity.
3Measurement precision
If detailed position information is provided, then localization accuracy improves, but information processing complexity increases
Solution Approach 1:
The patent employs ultrasonic vibration between the locator tag and search device to enable precise distance measurement through time-of-flight calculation. The ultrasonic signal provides accurate position data without requiring complex visual or radar systems, achieving high measurement precision through a relatively simple acoustic measurement mechanism.
Solution Approach 2:
The server acts as an intermediary that receives raw position data from locator tags, processes the information to determine optimal search paths, and sends simplified search instructions to the search device. This intermediary processing layer manages the complexity of position information by transforming raw data into actionable guidance, maintaining measurement precision while controlling information processing complexity.
Data Source
AI summary
An object searching method is disclosed. The object searching method includes the following operations: receiving an user message; analyzing an object name from the user message; obtaining a locator corresponding to the object name according to a locator mapping table; detecting a locator distance and a locator direction of the locator; generating a description string according to the locator distance, the locator direction, and a feature direction map; generating a voice message according to the description string and the object name; and broadcasting the voice message.