Wireless Network Setup for Commercial Vehicles
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Solution Overview
Problem
Commercial vehicles, especially truck-trailer combinations, face challenges in transmitting unique data types via standard CAN bus systems, limiting data accessibility to drivers, and require an additional communication path for remote operation and secure wireless connectivity.
Innovation Solution
A method and system for setting up a wireless network between vehicles and a mobile communication unit, where communication units can be configured as servers or clients, allowing a mobile unit to mediate connections and ensure secure access, using techniques like QR codes for data transfer and IEEE-802.11 or Bluetooth standards.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a standardized CAN bus system is used for data transmission between vehicle units, then data transmission is reliable and standardized, but unique data types not specified for the CAN bus cannot be transmitted
Solution Approach 1:
The patent introduces a gateway device as an intermediary between the CAN bus system and wireless communication systems. This gateway translates and forwards data packets, enabling both standardized CAN data and unique vehicle-specific data to be transmitted wirelessly to external devices without modifying the existing reliable CAN bus architecture.
2Ease of operation
If multiple operators can access vehicle functions simultaneously, then operator flexibility is improved, but conflicting function requests may occur
Solution Approach 1:
The patent implements a feedback mechanism where the control unit monitors active vehicle functions and communicates this status to connected operators. When a function is already active, the system provides feedback to prevent conflicting requests, ensuring operational consistency while still allowing multiple operators to access and monitor vehicle functions simultaneously.
3Ease of operation
If vehicle communication units are configured only as servers, then they can provide information to mobile devices, but they cannot establish client-server connections to access other vehicles' networks
Solution Approach 1:
The patent makes the communication unit's role dynamic by enabling it to switch between server and client configurations. The control unit can determine whether to act as a server providing information or as a client accessing other vehicles' networks, allowing flexible adaptation to different operational scenarios and improving overall system versatility.
Data Source
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AI summary
The invention relates to a method for establishing and operating a wireless network comprising a first communication unit (13), a second communication unit (14), and a mobile communication unit. The two communication units (13, 14) are each configured as servers and the mobile communication unit is configured as a client. The mobile communication unit detects connection-establishing data for the two communication units (13, 14). A wireless connection is established from the mobile communication unit to the first communication unit (13). The latter receives an instruction for configuration as a client of the second communication unit (14) from the mobile communication unit via the wireless connection; to this end the mobile communication unit transfers the connection-establishing data of the second communication unit (14) to the first communication unit (13). After this, at the latest, a wireless connection is established from the mobile communication unit to the second communication unit (14).