Bicycle Bus System Gateways for Secure Low-Power Data
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Solution Overview
Problem
There is no existing bus system for road users and vehicles, particularly bicycles, that enables efficient communication between different components via a wireless network with multiple participants, including public and private infrastructure, while ensuring data security and energy efficiency.
Innovation Solution
A bus system that allows data transmission from a wired network to a wireless network, with decentralized safety-relevant data recording, energy-saving features, and secure private message transmission, using a gateway to connect wired and wireless networks, and implementing heartbeat checks, redundancy checks, and power-saving modes.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If a bus system enables real-time data transmission between wired and wireless networks for multiple participants, then communication efficiency and data transmission speed are improved, but system complexity and energy consumption increase
Solution Approach 1:
The bus system is segmented into multiple independent networks (wired CAN bus, wireless WLAN, wireless Bluetooth) that can operate autonomously. Each network handles specific communication tasks, reducing the complexity of any single network while enabling real-time data transmission across the entire system through standardized protocols and gateway devices.
2Productivity
If a bus system enables real-time data transmission between wired and wireless networks for multiple participants, then communication efficiency and data transmission speed are improved, but energy consumption increases
Solution Approach 1:
The bus system dynamically selects communication networks and transmission modes based on real-time requirements. For non-critical data, lower-power wireless networks are used, while time-critical safety data utilizes the faster wired CAN bus. This dynamic adaptation optimizes energy consumption while maintaining real-time transmission capabilities when necessary.
3Reliability
If decentralized safety-relevant data recording is implemented, then data security and reliability are improved, but system complexity increases
Solution Approach 1:
Safety-relevant data recording is decentralized into independent recording units distributed across different components (bicycle, trailer, smartphone). Each unit maintains local records, ensuring data security and availability even if one component fails. The segmentation reduces the complexity of centralized security management while improving overall system reliability.
4Adaptability or versatility
If multiple wireless networks are integrated for public and private infrastructure communication, then adaptability and versatility are improved, but system complexity and interference risks increase
Solution Approach 1:
Gateway devices serve as intermediaries between different wireless networks (WLAN, Bluetooth, cellular) and the wired CAN bus system. These gateways translate protocols and manage communication routing, enabling versatile communication with public and private infrastructure while shielding the core system from the complexity of multiple network protocols and potential interferences.
Data Source
Figure 1
Figure 2~3
AI summary
The invention relates to a BUS system (1) for road users and vehicles moving in road traffic, in particular for bicycles, comprising a wired network (2) and a wireless network (3) connected to the wired network (2). The invention is characterized in that data from at least one component (5, 9, 10, 11) connected to the wired (2) and/or wireless network (3) can be transmitted via the wireless network (3) connected to the wired network (2) to at least one further component (5, 9, 10, 11) of another wired (2) and/or wireless network (3) via the at least one further wireless network (3). This enables communication between different components (5, 9, 10, 11) of a wired network (2) via a wireless network (3) with multiple participants.