Gate Pass Management Using Dual RF Reception Ranges
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Solution Overview
Problem
Existing gate pass management systems face complexity in identifying mobile devices accessing predetermined areas, particularly due to intricate image processing requirements.
Innovation Solution
A gate pass management system employing a first and second RF signal reception unit with distinct reception ranges, where the second range is closer to the predetermined area, allowing for simplified identification of mobile devices by determining if the second RF signal is received within a predetermined time after the first RF signal is received.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If image processing is used to identify mobile devices accessing the area, then identification capability is achieved, but processing complexity increases
Solution Approach 1:
The patent replaces the complex image processing system with a simpler RF signal-based identification system. Instead of using cameras and image recognition algorithms to identify mobile devices, the system uses RF signals transmitted by mobile devices and received by reception units to determine device location and identify accessing devices, thereby reducing processing complexity while maintaining identification capability
Solution Approach 2:
The patent introduces RF signals as an intermediary medium between mobile devices and the gate pass management system. The RF signals carry identification information and are received by multiple reception units with different reception ranges, enabling location determination without requiring complex image processing operations
2Measurement precision
If multiple reception units with different reception ranges are used, then location determination accuracy is improved, but system complexity increases
Solution Approach 1:
The patent divides the reception system into multiple reception units with distinct reception ranges (first reception range and second reception range). Each reception unit is responsible for receiving RF signals in its specific range, and the decision unit determines location based on which reception unit(s) detect the signal. This segmentation enables accurate location determination while keeping each individual reception unit simple
3Device complexity
If RF signal reception is used for identification, then processing simplicity is achieved, but identification reliability may be compromised
Solution Approach 1:
The patent implements a feedback mechanism where the decision unit receives RF signals from multiple reception units and uses this feedback information to determine the location and identification status of mobile devices. The system continuously monitors which reception units detect signals and updates location determination accordingly, ensuring reliable identification while maintaining processing simplicity
Solution Approach 2:
The patent performs preliminary actions by having reception units continuously receive RF signals before the mobile device actually accesses the area. The decision unit determines location in advance based on which reception unit(s) detect the signal, allowing for proactive identification and gate control without requiring complex real-time processing during the actual access event
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 easy identification of mobile devices accessing the area, reducing processing complexity and improving authentication efficiency by using RF signals and ultrasonic waves for location determination.
Implementation Method 1
receives a first RF signal including identification information of a mobile device
Data Source
AI summary
In a gate pass management system, a first reception unit having a first reception range receives a first RF signal including identification information of a mobile device. In the gate pass management system, a second reception unit having a second reception range, defined to be a range located closer to a predetermined area than the first reception range is, receives a second RF signal. In the gate pass management system, when the second RF signal is received after the first RF signal has been received, a decision is made that the mobile device be currently located within the second reception range.