Radio Beacon Heading-Based Selective Communication
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Solution Overview
Problem
Current road toll and communication systems require expensive and space-consuming infrastructure for radio beacons with large coverage ranges, which is not aesthetically pleasing and inefficient, especially in residential areas and natural landscapes.
Innovation Solution
Implementing a method where onboard units determine and transmit their heading information to radio beacons, allowing selective radio communication only within predetermined boundaries, enabling radio beacons to distinguish between vehicles moving in different directions without the need for extensive infrastructure, using existing communication standards like DSRC and WAVE.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of stationary object
If radio beacons with larger coverage ranges are used, then the coverage area is improved, but expensive and space-consuming infrastructure such as gantries is required
Solution Approach 1:
The patent changes the parameter of beam directionality from fixed to dynamically adjustable. By controlling the beam direction according to the heading information of onboard units, the system achieves selective communication without requiring physical lane separation infrastructure, thus resolving the contradiction between coverage range and infrastructure complexity
Solution Approach 2:
The patent introduces dynamic beam steering capability that adjusts the radio beam direction in real-time based on vehicle heading. This dynamic adjustment allows a single radio beacon to serve multiple lanes without physical infrastructure, resolving the contradiction between large coverage area and infrastructure complexity
2Measurement precision
If directional radio beacons are used for each lane, then lane-specific identification is improved, but the device complexity and installation cost increase
Solution Approach 1:
The patent makes a single radio beacon universal by enabling it to dynamically adjust its beam direction to serve multiple lanes. Instead of requiring one dedicated beacon per lane, one beacon can identify and communicate with vehicles in different lanes by changing its beam direction, thus resolving the contradiction between identification accuracy and infrastructure complexity
Solution Approach 2:
The patent changes the operational parameter of the radio beacon from fixed directional coverage to dynamically adjustable beam direction based on vehicle heading information. This allows precise lane identification without requiring separate infrastructure for each lane
3Power
If mounting installations and masts are installed for radio beacons, then the radio communication capability is improved, but the space consumption and landscape impact increase
Solution Approach 1:
The patent introduces dynamic beam steering that allows the radio beacon to achieve enhanced communication capability without physical expansion. By electronically adjusting the beam direction based on vehicle heading, the system gains directional precision without requiring larger mounting structures or more space
Data Source
AI summary
Selective radio communication between a radio beacon and an onboard unit of a vehicle passing the radio beacon comprising: in the onboard unit determining the current heading of the onboard unit and transmitting information thereon to the radio beacon; in the radio beacon checking whether the heading indicated in the heading information is within predetermined boundaries, and if so, carrying out a radio communication with the onboard unit.