Telephone remote-control device for household electrical appliance base on singlechip and working method thereof

Abstract

A single chip microcomputer-based household electrical appliance and telephone remote control device belongs to the technical field of remote control on household electrical appliance, including a single chip microcomputer, and a memorizer and a watchdog module which are connected with the single chip microcomputer, a telephone interface, a ringing detection circuit, a voice transmission circuit, a automatic off hook circuit, a power control circuit and a power supply circuit, wherein, the ringing detection circuit, the voice transmission circuit, the automatic off hook circuit and the power control circuit are respectively connected with the single chip microcomputer; the ringing detection circuit, the voice transmission circuit and the automatic off hook circuit are respectively connected with the telephone interface; the output of the power control circuit is connected with the relay control key of the household electrical appliance and the direct current output of the power supply circuit is connected with the circuits to supply power to the whole device. The device has the advantages of reasonable design, simple operation method, safe, convenient and stable application and flexible and various functions. The device can be used for controlling of household appliances such as air conditionings and water heaters, controlling of recording television programs of video recorders and controlling of switches of various electrical equipment.

Description

(1) Technical field [0001] The invention relates to the remote control technology of household appliances, in particular to a single-chip microcomputer-based telephone remote control device for household appliances and its working method. (2) Background technology [0002] Some existing home appliances remote control devices have basically realized the function of controlling home appliances, and they are mostly realized by means of ringing pulses, manual buttons, and editing short messages. They have realized ringing pulse counting, using relays to control home appliance switches and other functions. But there are also many shortcomings and deficiencies, such as poor stability, vulnerable to malicious attacks, complex operation, need to manually press or edit text messages, incomplete functions, only control but not query, etc. For example, the name is "Telephone Remote Home Appliance Controller", and the publication number is CN2655549Y; the ringing detection has been bas...

AI Technical Summary

Problems solved by technology

But there are also many shortcomings and deficiencies, such as poor stability, vulnerable to malicious attacks, complex operations, need to be realized by manual buttons or editing text messages, incomplete functions, only control but not query, etc.

For example, the name is "Telephone Remote Home Appliance Controller", and the publication number is CN2655549Y; the ringing detection has been basically realized, but the identification of the owner and the control of the home appliance need to be realized by pressing buttons, the operation is complicated, but the functions are not complete, and it can only be controlled but not inquired; The patent No. CN2865155Y and titled "A Device for Remotely Monitoring Home Appliances Using Mobile Phone SMS" is in this category. It is complicated to implement and needs to cooperate with a SMS receiving device, and the cost is high and the operation is complicated.

Images