Multimedia System for Shared Bicycles with Power-Aware Display Control
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Solution Overview
Problem
Shared bicycles lack multimedia systems and navigation equipment, leading to inefficient resource utilization, high power consumption, and safety concerns due to users relying on mobile phones for navigation during rides.
Innovation Solution
A multimedia system for shared bicycles comprising a main control unit in the bicycle lock, display screens, and a cloud server that manages power usage and displays multimedia information and navigation routes, including GPS and Bluetooth modules for navigation assistance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of information
If multimedia systems are installed on shared bicycles to display information and provide navigation, then information dissemination and user safety are improved, but power consumption increases
Solution Approach 1:
The display unit operates periodically rather than continuously, displaying multimedia information only during predetermined time intervals or when specific conditions are met (such as when the bicycle is stationary or in low-power mode), thereby reducing overall power consumption while still achieving information dissemination goals
Solution Approach 2:
The system dynamically adjusts display parameters such as brightness, display duration, and refresh rate based on available power levels, environmental conditions, and user interaction patterns to optimize the balance between information delivery and energy conservation
2Loss of information
If display screens are continuously operated to show multimedia information, then information dissemination is improved, but battery life decreases
Solution Approach 1:
The display unit is controlled to operate periodically with predetermined time intervals, remaining inactive during low-power periods and activating only when sufficient battery charge is available, thus extending battery life while maintaining information dissemination functionality
Solution Approach 2:
The system monitors its own power status and automatically adjusts display operation accordingly, making decisions about when to activate or deactivate the display based on real-time battery level detection without requiring external intervention
3Object-affected harmful factors
If navigation equipment is added to shared bicycles, then user safety is improved, but device complexity increases
Solution Approach 1:
The display unit serves multiple functions including multimedia information display, navigation route guidance, and safety warnings, consolidating what would otherwise require separate dedicated components into a single multi-functional device, thereby reducing overall system complexity while maintaining safety benefits
Solution Approach 2:
The navigation function is integrated with the existing display unit and control system rather than being implemented as a separate standalone system, merging navigation capabilities with the multimedia display infrastructure already present on the shared bicycle
Data Source
AI summary
A multimedia system may include a main control unit of a bicycle lock, a display unit, and a cloud server. The display unit may include a plurality of display screens. The main control unit may report an electric quantity of the shared bicycle to the cloud server when the bicycle lock is unlocked. The cloud server may send multimedia information to the main control unit when the shared bicycle is at a high level of electric quantity. The main control unit may refrain from turning on the display unit when the shared bicycle is at a low level of electric quantity. The multimedia system may turn on or off a display screen according to the electric quantity of the shared bicycle, and the display screen may display the multimedia information for advertising. The multimedia system may further include a navigation module to provide navigation for users and facilitate user travel.