Self-Declaring Vehicle Device for HOV Lane Enforcement
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Solution Overview
Problem
Conventional High Occupancy Vehicle (HOV) and High Occupancy Toll (HOT) lane enforcement systems rely on an honor system, leading to inconsistent and ineffective compliance due to human oversight, as they require manual declaration of occupancy using RFID-enabled electronic toll collection (ETC) tags.
Innovation Solution
A self-declaring wireless device installed on vehicles, equipped with a sensor module, microcontroller, and wireless transceiver, automatically detects occupancy information and communicates it to the ETC system, ensuring accurate and reliable enforcement by determining the number of occupants and controlling the wireless transceiver's operation state accordingly.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If manual declaration using RFID-enabled ETC tags is used, then the system is simple to implement, but compliance is inconsistent and ineffective due to reliance on human honesty
Solution Approach 1:
The system automatically detects occupancy using sensors and declares it via wireless transceiver without requiring manual input from drivers. The device serves itself by autonomously determining occupancy status and communicating with the ETC system, eliminating reliance on human honesty while maintaining relatively simple implementation
Solution Approach 2:
The patent replaces the manual mechanical action of switching on ETC tags with an automated sensor-based detection system. Sensors automatically detect occupancy and the microcontroller processes this data to control the wireless transceiver, substituting human manual operation with automated electronic detection and communication systems
2Measurement precision
If automated sensor-based occupancy detection is implemented, then enforcement consistency is improved, but device complexity increases due to additional components
Solution Approach 1:
The sensor module automatically detects occupancy without requiring manual input, and the microcontroller autonomously processes sensor data and controls the wireless transceiver. This self-service automation improves measurement precision while keeping the device integrated and relatively compact
Solution Approach 2:
The patent combines multiple functions into a single integrated device: sensor modules for occupancy detection, microcontroller for data processing, and wireless transceiver for communication with the ETC system. This merging of components achieves accurate automated detection while consolidating complexity into one unified device rather than multiple separate systems
Data Source
AI summary
The present disclosure provides various examples of a self-declaring wireless device installed on a vehicle operable to automatically detect, determine and declare occupancy information of the vehicle traveling on a restricted traffic lane to an electronic toll collection (ETC) system. According to one aspect, a process for performing self-declaration by a vehicle traveling on a restricted traffic lane includes the steps of: receiving sensor data collected by one or more sensors installed on the vehicle; determining occupancy data of the vehicle based on the received sensor data; and controlling a wireless transceiver installed on the vehicle to communicate with an electronic toll collection (ETC) system associated with the restricted traffic lane based on the determined occupancy data.