Radio Wave Object Identification Using Reception Timing Sequences
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Solution Overview
Problem
Existing identification systems require vehicles to perform operations, complicating the identification process and preventing identification when necessary devices are not installed.
Innovation Solution
An identification system that uses a radio wave irradiation and detection system to identify objects by analyzing time series data of radio wave reception timing, allowing identification without requiring the object to perform any operation and without needing installed devices.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the vehicle performs an operation to be identified, then the identification can be confirmed, but the identification process becomes complicated and requires specific devices to be installed
Solution Approach 1:
Instead of having the identification system send complex operation requests to the vehicle and wait for confirmation, the patent inverts the approach by having the vehicle continuously transmit identification signals that the system simply detects. This reverses the action direction and eliminates the need for complex operation sequences.
Solution Approach 2:
The patent extracts the identification signal transmission function from the operation execution process. The vehicle's identification unit separately transmits identification signals independent of any operation execution, allowing identification without requiring the vehicle to perform specific actions or have complex operation devices.
2Reliability
If the vehicle performs an operation to be identified, then the identification can be confirmed, but the vehicle cannot be identified when the device for executing the operation is not installed
Solution Approach 1:
The patent makes the identification system universal by having the vehicle's identification unit transmit signals that can be detected by any identification system. The identification signal transmission is a basic function that doesn't depend on specific operation devices, allowing the same mechanism to work across different vehicle types and identification systems.
Solution Approach 2:
The vehicle's identification unit autonomously transmits identification signals without requiring external commands or operation execution. The vehicle serves its own identification needs by continuously or periodically transmitting signals that the identification system can detect, eliminating the need for external operation devices.
3Measurement precision
If radio waves are sequentially irradiated to multiple objects, then identification accuracy is improved, but the identification time increases
Solution Approach 1:
The identification system uses periodic radio wave irradiation at predetermined intervals to multiple objects. This periodic action allows the system to maintain identification accuracy through sequential detection while controlling the timing to prevent excessive delays. The periodic transmission creates a rhythm that balances accuracy requirements with time efficiency.
Solution Approach 2:
The system uses the temporal pattern of radio wave transmission and reception as a identifying characteristic. By copying the known transmission timing pattern and comparing it with the received signal timing, the system can accurately identify objects based on time series data without requiring extended observation periods.
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 efficient identification of objects, including vehicles, even when operation-executing devices are absent, by correlating radio wave irradiation order with reception timing data.
Implementation Method 1
a radio wave irradiation unit that sequentially emits a radio wave to a plurality of objects detected by the target detection unit; a radio wave detection unit provided in each of the plurality of objects, the radio wave detection unit detecting the radio wave emitted by the radio wave irradiation unit
Data Source
AI summary
An identification system comprising: a target detection unit detecting a plurality of objects; a radio wave irradiation part sequentially irradiating a radio wave to the plurality of the objects detected by the target detection unit; a radio wave detection unit provided in each of the plurality of objects, the radio wave detection unit detecting the radio wave irradiated by the radio wave irradiation part; and an identification unit identifying at least one of the objects among the plurality of the objects using time series data of the radio wave detected by the radio wave detection unit.