Parking Navigation Using Low Power Radios and Cameras
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Solution Overview
Problem
Drivers face challenges in finding available parking spaces in crowded lots, leading to unnecessary fuel consumption and time expenditure, as existing infotainment systems lack efficient methods to identify and guide vehicles to vacant spaces.
Innovation Solution
A navigation system employing low power radios and cameras deployed in a parking area, with a parking assist server that analyzes images to detect availability and provides a vehicle arrival sequence using radio triangulation or dead reckoning, guiding vehicles to unoccupied spaces and offering walking directions to pedestrian entrances.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of time
If drivers search for parking spaces manually in crowded lots, then they can find available spaces, but they expend unnecessary fuel and time
Solution Approach 1:
The system performs preliminary detection of parking space availability using cameras and low power radios before the driver arrives. The server pre-processes image data and identifies occupied vs. unoccupied spaces, then transmits this information to the vehicle via wireless communication, allowing drivers to make informed decisions before entering the parking lot.
Solution Approach 2:
A server acts as an intermediary between the parking lot infrastructure (cameras and radios) and the vehicle's infotainment system. The server receives image data from cameras, processes it to determine parking availability, and communicates this information to the vehicle through wireless signals, enabling remote parking information delivery without direct vehicle-camera interaction.
2Productivity
If existing infotainment systems are used without enhanced navigation, then the system remains simple, but they cannot efficiently identify and guide vehicles to vacant spaces
Solution Approach 1:
The low power radios deployed in the parking lot serve multiple functions: they transmit unique identification signals for location determination and also carry wireless communication data from the server to vehicles. This multi-functionality allows the same infrastructure to support both parking space identification and navigation guidance without adding separate systems.
Solution Approach 2:
The system replaces traditional mechanical navigation methods (manual map reading, physical signage) with electronic wireless communication. The server transmits navigation data and the infotainment system displays turn-by-turn directions, substituting electronic information delivery for mechanical navigation aids and improving efficiency.
3Measurement precision
If low power radios are deployed throughout the parking area, then accurate location guidance is provided, but the infrastructure complexity increases
Solution Approach 1:
Each low power radio automatically transmits its unique identification signal continuously without requiring manual activation or complex configuration. The system self-configures as vehicles pass through the parking lot, with radios autonomously providing location data that the server processes into navigation instructions, reducing infrastructure management complexity.
Solution Approach 2:
The system uses signal strength values and time of flight measurements from low power radios to calculate vehicle position. By changing from manual location input to automated signal-based position determination, the system achieves precise location guidance while keeping the radio infrastructure relatively simple, as each radio only needs to transmit basic identification signals.
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
The system efficiently identifies and guides vehicles to available parking spaces, reducing fuel consumption and time spent searching, while also providing accurate navigation to pedestrian destinations within the parking area.
Implementation Method 1
The low power radios each transmit a unique radio signal
Implementation Method 2
Radio triangulation or dead reckoning is used to navigate the vehicle between the waypoints of the vehicle arrival sequence
Implementation Method 3
a time of flight value for relative timing of the radio signals at the location of the waypoint
Implementation Method 4
The server analyzes images captured by the cameras, receives a parking request from a user
Data Source
AI summary
A navigation system for a parking area comprises a plurality of nodes and a server communicating with the nodes. Each node comprises a camera capturing images of the parking area and a low power radio transmitting a radio signal. The server analyzes the images to propose a parking space and provides an arrival sequence of waypoints to the parking space. Each of the waypoints comprises strength and time of flight values of the radio signals.