Heat-cooking system and method for testing a heat-cooking appliance of a heat-cooking system

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Solution Overview

Problem

Existing heat-cooking systems face difficulties in identifying the source of communication faults between a heat-cooking appliance and a portable terminal when using a wireless relay, making it challenging to determine whether the issue lies with the wireless relay, the heat-cooking appliance, or the portable terminal.

Innovation Solution

The system enables direct communication between the heat-cooking appliance and the portable terminal through an access point mode, allowing for the execution of a test mode that helps isolate faults by performing internal communication and displaying the operating state, thereby facilitating the identification of problems in the wireless communication environment.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If indirect communication via wireless relay is used between heat-cooking appliance and portable terminal, then communication convenience is improved, but fault identification difficulty increases

Engineering Contradiction:
Improvecommunication convenienceVSAvoidfault identification difficulty
Core Design Contradiction:
Ease of operationVSDifficulty of detecting and measuring

Solution Approach 1:

The system segments the communication path into two modes: indirect communication via wireless relay for normal operation, and direct communication for testing. This segmentation allows the test mode to bypass the wireless relay and directly test the heat-cooking appliance's communication function, isolating the fault to either the appliance itself or the relay infrastructure.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The patent introduces a dual communication path where direct communication serves as an intermediary test mechanism. When indirect communication fails, the system switches to direct communication as a mediator to determine whether the fault lies with the heat-cooking appliance or the wireless relay, enabling fault isolation without requiring physical inspection of the relay.

Inventive Principle:
Principle #24Intermediary (Mediator)

2Difficulty of detecting and measuring

If direct communication mode is added for testing, then system complexity increases, but fault detection capability improves

Engineering Contradiction:
Improvefault detection capabilityVSAvoidcommunication mode complexity
Core Design Contradiction:
Difficulty of detecting and measuringVSDevice complexity

Solution Approach 1:

The heat-cooking appliance is equipped with multi-functional communication capability, supporting both indirect communication (normal operation) and direct communication (testing). This universal communication design allows a single device to perform multiple functions: routine wireless communication via relay and self-diagnostics via direct connection, eliminating the need for separate testing equipment.

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

Solution Approach 2:

The system implements self-service diagnostics by enabling the heat-cooking appliance to autonomously test its own communication function. The appliance can switch to direct communication mode, execute communication tests, and identify faults without external intervention or complex testing equipment, reducing overall system complexity while maintaining high detection capability.

Inventive Principle:
Principle #25Self-service

Data Source

PatentEP2995865B1Heat-cooking system and method for testing a heat-cooking appliance of a heat-cooking system
Publication Date: 2019.06.12 E G O ELEKTRO GERAETEBAU GMBH
  • EP2995865B1 patent drawingFigure 1
  • EP2995865B1 patent drawingFigure 2
  • EP2995865B1 patent drawingFigure 3

AI summary

A heat-cooking appliance (1) is provided with a memory unit (13) for storing processing content of a test mode, and test execution information d including information for instructing execution of the test mode from the portable terminal (2); the system is adapted in such a way as to enable setting of a state in which communication is performed by a direct communication method which affords direct communication between the heat-cooking appliance (1) and the portable terminal (2), and in a state of communication by the direct communication method: the portable terminal (2) acquires the test execution information from the memory unit (13) of the heat-cooking appliance (1) and is adapted in such a way as to be able to instruct execution of the test mode to the heat-cooking appliance (1) by utilizing the acquired test execution information d, and the heat-cooking appliance (1) executes the test mode of the processing content when the test mode execution is instructed.