Vehicle Diagnostic Module Wireless Data Transmission
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Solution Overview
Problem
Current motor vehicle diagnosis methods require vehicles to be taken to a workshop for data analysis, which is time-consuming and inconvenient for owners.
Innovation Solution
A diagnostic module that reads and analyzes data from a vehicle's control units and transmits results wirelessly via a mobile network or Internet to a server, allowing owners to perform diagnoses independently and conveniently, with encrypted data transmission and remote software updates tailored to specific vehicle types.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If vehicle diagnostics are performed at a workshop, then accurate diagnosis can be achieved, but it requires time-consuming travel and appointments
Solution Approach 1:
The patent introduces a portable diagnostic device as an intermediary between the vehicle and the workshop. This device can be connected to the vehicle's control units via the OBD interface, perform diagnostics locally, and transmit results wirelessly to the workshop or the user's mobile device. This eliminates the need for the user to travel to the workshop while maintaining diagnostic accuracy.
Solution Approach 2:
The diagnostic system enables self-service diagnostics by allowing vehicle owners to perform diagnostics themselves using the portable device. The device automatically connects to the vehicle, runs diagnostic tests, and provides results without requiring professional intervention at a workshop, thus saving time while maintaining diagnostic capability.
2Ease of operation
If diagnostic data is transmitted wirelessly, then convenience is improved, but data security and encryption requirements increase
Solution Approach 1:
The patent implements data security through parameter changes in the transmission protocol, including encryption algorithms and authentication mechanisms. The system transforms the transmission parameters to ensure secure communication between the portable diagnostic device, the vehicle, and the remote server, protecting diagnostic data from unauthorized access while maintaining wireless convenience.
3Measurement precision
If diagnostic software is tailored to specific vehicle types, then diagnosis precision improves, but software complexity and update requirements increase
Solution Approach 1:
The patent implements dynamic software updating where the diagnostic software is not static but can be remotely updated and adapted. The system includes a software update module that can download and install new diagnostic protocols and vehicle-specific parameters wirelessly, allowing the same hardware device to adapt to different vehicle types and maintain high diagnostic precision without increasing physical complexity.
Solution Approach 2:
The portable diagnostic device is designed with universal functionality to work with multiple vehicle types through a single device. Rather than requiring different hardware for different vehicles, the device uses a universal interface (OBD) combined with software adaptation to handle various vehicle makes and models, reducing hardware complexity while maintaining diagnostic precision.
Data Source
Figure 1~2
AI summary
The invention relates to a diagnosis module (6) for vehicle diagnosis having a communication unit (18) which is designed for data transmission with the control device (4) of a motor vehicle (2); a diagnosis unit (20) which is designed in order to perform a diagnosis of the motor vehicle (2) on the basis of the diagnostic data transmitted by the communication unit (18); and a transmitter unit (22) which is designed in order to transmit diagnostic data from the diagnosis module (6) to a server (12). The transmitter unit (22) is designed to transmit the diagnostic data via a mobile communication network and/or the internet from the diagnosis module (6) to the server (12).