Websocket Vehicle Remote Diagnosis via Intermediary Server

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Solution Overview

Problem

Existing vehicle remote diagnosis technologies are inconvenient for non-professionals due to the need for specialized equipment and limited real-time data exchange capabilities, restricting their ability to perform complex diagnostics remotely.

Innovation Solution

A communication method utilizing a WEB server that establishes HTML5 Websocket connections between a user's device and a vehicle diagnosis equipment, enabling real-time data interaction and instruction transmission through TCP/IP Socket connections, allowing for remote diagnosis without the need for specific diagnostic apps or platforms.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If near-end diagnosis equipment with specialized diagnosis programs is used, then professional diagnosis capability is achieved, but device complexity and ease of operation deteriorate for ordinary users

Engineering Contradiction:
Improvediagnosis capabilityVSAvoiduser convenience
Core Design Contradiction:
ReliabilityVSEase of operation

Solution Approach 1:

The patent introduces a server as an intermediary between the user's terminal device and the vehicle diagnosis equipment. The server hosts the complex diagnosis programs and processes, while users access them through simple web browsers. This mediator approach allows ordinary users to perform professional-level diagnostics without needing specialized local equipment or software installation.

Inventive Principle:
Principle #24Intermediary (Mediator)

Solution Approach 2:

The patent replaces the traditional mechanical/software-based diagnosis system (requiring specialized hardware and installed programs) with a web-based system using HTML5 Websocket technology. This substitution eliminates the need for complex local software installations and specialized diagnosis equipment, allowing access through standard web browsers while maintaining professional diagnostic capabilities.

Inventive Principle:
Principle #28Mechanics substitution (Replace mechanical system)

2Ease of operation

If simple data interchange methods are used, then ease of operation is maintained, but real-time performance and data exchange capability deteriorate for complex diagnostics

Engineering Contradiction:
Improvedata interchange simplicityVSAvoidreal-time data exchange
Core Design Contradiction:
Ease of operationVSSpeed

Solution Approach 1:

The patent changes the communication protocol parameters by implementing HTML5 Websocket connections instead of traditional simple data interchange methods. This allows full-duplex communication with real-time data exchange capabilities while maintaining the simplicity of web-based access. The Websocket protocol enables bidirectional, persistent connections that support complex diagnostic operations requiring real-time feedback.

Inventive Principle:
Principle #35Parameter changes

3Measurement precision

If specialized diagnosis equipment is required, then diagnosis precision is improved, but device complexity and accessibility worsen

Engineering Contradiction:
Improvediagnosis precisionVSAvoidequipment requirement
Core Design Contradiction:
Measurement precisionVSDevice complexity

Solution Approach 1:

The patent makes the diagnosis system universal by enabling access through standard web browsers on various devices (smartphones, tablets, computers) without requiring specialized diagnosis equipment. The server consolidates the diagnostic functionality, allowing any network-accessible device to perform professional-level vehicle diagnostics while maintaining high diagnosis precision through the sophisticated analysis algorithms running on the server.

Inventive Principle:
Principle #6Universality (Multi-functionality)

Data Source

PatentEP3425878B1Communication method, apparatus and system for remote diagnosis of automobile
Publication Date: 2023.05.03 LAUNCH TECH CO LTD
  • EP3425878B1 patent drawingFigure 1
  • EP3425878B1 patent drawingFigure 2
  • EP3425878B1 patent drawingFigure 3

AI summary

The present application discloses a communication method for vehicle remote diagnosis, which is applied to a WEB server; the method comprises: establishing a first socket connection with the WEB front end when receiving a landing request of the WEB front end; receiving a vehicle remote diagnosis request of the WEB front end through the first socket connection and obtaining an identification of a target vehicle diagnosis equipment carried in the vehicle remote diagnosis request; establishing a second socket connection with the target vehicle diagnosis equipment according to the identification of the target vehicle diagnosis equipment; performing interaction of the vehicle diagnosis data between the WEB front end and the target vehicle diagnosis equipment through the first socket connection and the second socket connection. The application also discloses a communication device and system for vehicle remote diagnosis. The application can improve the real-time capability and convenience of vehicle remote diagnosis.