Parking Access Device Identification Using Segmented Radio Fields
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Solution Overview
Problem
Existing parking systems face challenges in accurately determining the correct access device for vehicle entry and exit due to overlapping radio fields from adjacent access devices, leading to unreliable operation and user discomfort.
Innovation Solution
The implementation of a parking system that uses at least two local broadcasting devices associated with each access device, emitting distinct radio fields that cover the entrance segment, allowing for unambiguous identification of the correct access device through evaluation of the received access data records, ensuring reliable operation and user-friendly access control.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a single broadcasting device is used per access device, then the system is simple, but the determination of the correct access device becomes ambiguous when radio fields overlap
Solution Approach 1:
The broadcasting function is segmented into multiple independent broadcasting devices (first broadcasting device and second broadcasting device) associated with each access device. Each broadcasting device emits radio fields with unique access data records, allowing the system to distinguish between different access devices even when radio fields overlap. This segmentation resolves the ambiguity in determining the correct access device.
Solution Approach 2:
Each broadcasting device is configured with local quality characteristics - specifically, each emits radio fields containing unique access data records that are locally identifiable. The first broadcasting device emits radio fields with first access data records, while the second broadcasting device emits radio fields with second access data records. This local differentiation enables reliable determination of the correct access device despite overlapping coverage areas.
2Measurement precision
If multiple broadcasting devices are used per access device, then the access device can be determined unambiguously, but the device complexity increases
Solution Approach 1:
The identification function is segmented across multiple broadcasting devices, each contributing unique access data records. The first broadcasting device provides first access data records, and the second broadcasting device provides second access data records. This segmentation enables precise identification of the correct access device by comparing received access data records against the segmented sources.
Solution Approach 2:
Multiple broadcasting devices work together to provide a universal identification solution. Each broadcasting device performs the same basic function of emitting radio fields with access data records, but collectively they provide enhanced identification precision. The system uses the combined information from multiple broadcasting devices to achieve unambiguous access device determination.
3Ease of operation
If manual user actions are required for access control, then the system is easier to control, but user comfort decreases
Solution Approach 1:
The system enables self-service automatic access control where the mobile terminal autonomously receives radio fields from broadcasting devices, processes the access data records, and triggers access without manual user intervention. The user simply needs to have the mobile terminal in the vehicle, and the system automatically determines the correct access device and enables passage, eliminating the need for manual ticket handling or button pressing.
Solution Approach 2:
The patent replaces manual mechanical interactions (such as physically presenting tickets or pressing buttons) with automated electronic processes. The mobile terminal automatically receives radio fields, processes access data records electronically, and communicates with the control device to enable access. This substitution of mechanical user actions with automated electronic operations improves user comfort while maintaining ease of operation.
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 more reliable and unambiguous determination of the correct access device, enhancing the operational reliability and user comfort of the parking system by minimizing manual user actions and preventing unintentional access or billing errors.
Implementation Method 1
at least one first local broadcasting device associated with the access device, configured to emit a first radio field (112)
Data Source
AI summary
A parking system includes at least one first, near-field broadcasting device emitting a first radio field and at least one second, near-field broadcasting device emitting a second radio field. The system operates at least one access device. The first near-field broadcasting device transmits a first access data record, which is a function of a second access data record transmitted by the second near-field broadcasting device. An evaluation device identifies an associated access device in the system based on an evaluation of the functional relationship between the first access data record and the second access data record.