Smart Mirror Power Management via OBD Data
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Solution Overview
Problem
Traditional vehicle mirrors lack enhanced functionality, such as GPS, Bluetooth, and power management, which can lead to inefficiencies and increased battery drainage, compromising safety and driver satisfaction.
Innovation Solution
A smart rearview mirror system equipped with an OBD transceiver, processors, and memory that determines vehicle type and power state transitions based on OBD data, incorporating a heads-up display projector for enhanced functionality and power conservation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If traditional mirrors are used without enhanced functionality, then device complexity is reduced, but safety and driver satisfaction are compromised due to lack of real-time data and power management
Solution Approach 1:
The patent combines multiple functions (GPS tracking, Bluetooth communication, power management, real-time data display) into a single integrated smart mirror system. The mirror assembly serves as both a traditional reflective surface and a computing platform with processor, memory, and various transceivers, eliminating the need for separate devices and reducing overall system complexity while enhancing safety.
Solution Approach 2:
The smart mirror is designed as a multi-functional device that simultaneously provides traditional mirror reflection, GPS navigation, Bluetooth connectivity, power management, and real-time data display capabilities. This universal approach allows a single device to perform multiple functions that would otherwise require separate systems, improving safety without proportionally increasing complexity.
2Reliability
If enhanced functionality is added to mirrors, then safety and driver satisfaction are improved, but battery drainage increases
Solution Approach 1:
The system implements periodic action through its power management processor that continuously monitors OBD data and periodically transitions the mirror between sleep and awake states. The mirror wakes up to perform specific functions (display real-time data, process OBD information) and then returns to sleep mode, rather than remaining continuously active. This periodic operation significantly reduces battery drainage while maintaining safety-critical functions.
Solution Approach 2:
The power management system dynamically changes operational parameters by adjusting the mirror's power state based on vehicle conditions. When the vehicle is stationary or in low-activity states, the mirror transitions to sleep mode with reduced power consumption. When vehicle activity is detected through OBD data, the mirror transitions to awake mode to provide enhanced functionality. This dynamic parameter adjustment optimizes energy usage while maintaining safety.
3Ease of operation
If the mirror remains in awake state continuously, then real-time data and functionality are always available, but power consumption increases and battery drainage worsens
Solution Approach 1:
The system implements dynamics by making the mirror's operational state flexible and adaptive rather than static. The power management processor continuously evaluates vehicle conditions and dynamically transitions the mirror between sleep and awake states based on real-time needs. This dynamic approach ensures real-time data is available when necessary while minimizing power consumption during periods when enhanced functionality is not required.
Solution Approach 2:
The system uses feedback from OBD data to control the mirror's power state. The power management processor monitors vehicle parameters (engine status, battery voltage, operational mode) and uses this feedback to determine when the mirror should wake up or go to sleep. This feedback mechanism ensures that real-time data is available when vehicle conditions warrant it while automatically reducing power consumption when conditions change, resolving the contradiction between availability and energy usage.
4Loss of energy
If power management transitions are implemented, then battery drainage is reduced, but device complexity increases due to additional processing requirements
Solution Approach 1:
The smart mirror system implements self-service through its integrated power management processor that autonomously monitors OBD data, evaluates vehicle conditions, and transitions the mirror between power states without external intervention. The system serves itself by automatically managing its own power consumption based on real-time vehicle status, reducing battery drainage while the processing complexity is absorbed by the existing mirror computing platform rather than adding separate control systems.
Data Source
AI summary
In one embodiment, a vehicle mirror includes an on-board diagnostics (OBD) transceiver and one or more processors. The processors access OBD data received by the OBD transceiver from an OBD port of a vehicle. The processors further determine, from the OBD data, a vehicle type, a change in voltage of the vehicle's battery, and a secondary vehicle factor. When the vehicle is determined to be a combustion engine vehicle, the processors transition the vehicle mirror from a sleep power state to an awake power state when the change in voltage is greater than a predetermined amount and the secondary factor of the vehicle is greater than a predetermined threshold. When the vehicle is determined to be an electric vehicle, the processors transition the vehicle mirror from the sleep power state to the awake power state when any activity is detected in the OBD data and the secondary factor of the vehicle is greater than the predetermined threshold.