Intelligent household appliance system secret key control method and intelligent household appliance system

Abstract

The invention provides an intelligent household appliance system secret key control method and an intelligent household appliance system. The method comprises the steps that a control host generates random character strings at certain time intervals, the random character strings are used as a new secret key to be sent to an intelligent household appliance terminal, the intelligent household appliance terminal updates a local communication secret key of the terminal after receiving the new secret key, and sends a confirmation message to the control host, and the control host synchronously updates the locally-saved communication secret key of the intelligent household appliance terminal after receiving the confirmation message. Therefore, synchronous dynamic secret key updating between the control host and the intelligent household appliance terminal in the intelligent household appliance system can be achieved, communication can be achieved between the control host and the intelligent household appliance terminal without the need that a user manually inputs the secret key, using is convenient, specific secret key information does not need to be managed manually, the system changes automatically and dynamically, each terminal secret key is independent, each secret key is formed by dynamically-generated long character strings, the possibility that the secret keys are guessed does not exist, and communication safety can be ensured.

Description

Technical field [0001] The present invention relates to the technical field of smart home appliances, in particular to a key control method for a smart home appliance system, and a smart home appliance system using the method. Background technique [0002] There is great room for development of smart home appliance systems. The communication methods of existing smart home appliance systems mainly include bus type, power line carrier type and wireless type. [0003] Among them, the bus type is greatly restricted in application due to the necessity of dedicated wiring. Especially the house that has been renovated has almost no operability and must be re-wired and renovated. [0004] Although most of the power line carrier type does not require additional wiring, because the power network has a fatal impact on the reliability of communication, the reliability of power line carrier communication is lower. In addition, the comprehensive cost, volume and power consumption of smart home app...

AI Technical Summary

Problems solved by technology

[0007] Aiming at the problem that the communication security of the existing smart home appliance system is not high, the present invention proposes a key control method of the smart home appliance system with simple operation and high reliability, so that the communication of the smart home appliance system does not need cumbersome interactive input, and does not require manual Manage specific key information to improve the security of smart home appliance system communication

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