Gate Array Antenna Positioning via Signal Processing
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing access systems face challenges in accurately determining the position of mobile terminals near gates, leading to delays and unauthorized access, especially in high-traffic scenarios, due to the limitations of current sensor technologies.
Innovation Solution
The implementation of an array antenna arrangement that processes information signals with both modulated and unmodulated signal parts to accurately determine the position of mobile terminals, allowing for precise gate operation and reducing the risk of unauthorized access with reduced installation effort.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If additional sensors such as cameras and beacons are installed to determine mobile terminal position, then position determination capability is improved, but installation effort and system complexity increase
Solution Approach 1:
The array antenna arrangement originally designed for wireless communication performs dual functions: it enables both data transmission and precise position determination of mobile terminals. By utilizing the existing antenna structure for both communication and positioning purposes, the system achieves accurate location tracking without requiring separate sensor installations, thereby reducing installation effort while maintaining measurement precision
Solution Approach 2:
Instead of installing physical sensors like cameras and beacons, the system creates a virtual positioning model by processing wireless signals through the array antenna arrangement. The position information is derived computationally from signal characteristics, effectively copying the positioning function that would otherwise require dedicated physical sensors, thus reducing system complexity while achieving the same measurement capability
2Measurement precision
If additional sensors are installed to determine user position accurately, then position determination accuracy is improved, but processing time increases leading to delays
Solution Approach 1:
The array antenna arrangement continuously processes wireless signals during normal communication operations, enabling real-time position determination without discrete measurement cycles. The system maintains continuous tracking of mobile terminal positions through ongoing signal exchange, eliminating the time delays associated with periodic sensor activations and ensuring immediate position data availability for gate control decisions
Solution Approach 2:
The wireless communication signals themselves carry position information that can be extracted and processed by the array antenna arrangement. The system uses the necessary communication signals for their dual purpose of data transmission and positioning, eliminating the need for separate positioning signal transmissions or additional measurement cycles, thus avoiding processing delays while maintaining accurate position determination
3Ease of manufacture
If conventional position determination methods are used, then installation effort is reduced, but position accuracy is insufficient leading to unauthorized access
Solution Approach 1:
The array antenna arrangement performs dual functions of wireless communication and precise position determination simultaneously. By leveraging the existing communication infrastructure for positioning purposes, the system achieves high measurement precision without requiring additional sensor installations, thus maintaining ease of manufacture while dramatically improving position accuracy to prevent unauthorized access
Solution Approach 2:
The system extracts position information by analyzing parameters of existing wireless communication signals, such as signal strength, phase, and arrival time. By changing the approach to utilize these existing signal parameters for positioning calculations rather than relying on dedicated positioning sensors, the system achieves high position accuracy while keeping installation effort minimal, as no additional hardware is required beyond the communication antennas
4Productivity
If the gate opens early to accommodate potential users, then throughput is improved, but unauthorized users may pass through
Solution Approach 1:
The array antenna arrangement continuously determines the position of mobile terminals in advance, enabling the system to identify which users are approaching which gates before they arrive. This preliminary position information allows the gate control system to prepare for authorized user arrival and open gates at the optimal moment, maximizing throughput while maintaining security by ensuring gates open only for authenticated users, not prematurely for potential unauthorized access
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 solution enables accurate position determination of mobile terminals with decimeter-range precision, improving throughput and reducing unauthorized access by ensuring the correct gate is opened at the right time, even in high-traffic conditions.
Implementation Method 1
at least a first array antenna arrangement (108) configured to process at least one information signal containing at least one modulated signal part and at least one unmodulated signal part
Data Source
AI summary
The application relates to an access system (100, 200, 500, 600, 700) comprising at least one first gate (102, 602.1, 602.2, 702.1, 702.2) configured to enable an access from a first area (104) to a second area (106), the first gate (102, 602.1, 602.2, 702.1, 702.2) comprising at least one first array antenna arrangement (108, 208, 308, 308.1, 308.2, 508, 608.1, 608.2, 708.1, 708.2) configured to process at least one information signal (234, 446, 564.1, 564.2, 564.3, 562, 662.1, 662.2, 734) including at least one modulated signal part (458) and at least one unmodulated signal part (456), wherein the first array antenna arrangement (108, 208, 308, 308.1, 308.2, 508, 608.1, 608.2, 708.1, 708.2) comprises a plurality of gate antennas (110, 210, 510) arranged adjacent to each other.