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Remote control circuit

A technology of remote control circuit and control circuit, which is applied in the field of control, can solve the problems of difficult audio dialing telephone dialing remote control, etc., and achieve the effects of high control reliability, novel and ingenious control mode, and good application prospects

Pending Publication Date: 2017-12-05
NANJING INST OF RAILWAY TECH
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In order to solve the deficiencies of the prior art, the purpose of the present invention is to provide a remote control circuit to solve the problem that it is difficult to use the audio dial telephone to dial for remote control in the prior art

Method used

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Embodiment Construction

[0021] The present invention will be specifically introduced below in conjunction with the accompanying drawings and specific embodiments.

[0022] refer to figure 1 As shown, the dual-tone dialing telephone set can continue to dial to generate DTMF (Dual Tone Multi-Frequency) transmission signals not only when dialing, but also after the call path is connected. We use the digital signal after DTMF decoding to realize some remote control functions. The present invention has thus made a kind of remote control circuit, comprises:

[0023] The first chip unit 1 is used to decode the input DTMF signal and output the digital code corresponding to the DTMF signal;

[0024] The first single-chip microcomputer 2 is connected to the first chip unit 1, and is used to realize the compilation of the digital code, obtain the compiled code, and transmit the compiled code to the second single-chip microcomputer 3;

[0025] The second single-chip microcomputer 3 is connected to the first s...

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Abstract

The invention discloses a remote control circuit, which is characterized by comprising a first chip unit, a first single chip microcomputer, a second single chip microcomputer and a control circuit, wherein the first chip unit is used to decode an inputted DTMF signal and output a digital code corresponding to the DTMF signal; the first single chip microcomputer is connected with the first chip unit for compiling the digital code to obtain a complied code and transmitting the complied code to the second single chip microcomputer; the second single chip microcomputer is connected with the first single chip microcomputer for displaying the control state according to the command of the first single chip microcomputer and transmitting the control data to the control circuit; and the control circuit is connected with the second single chip microcomputer for realizing remote control. The remote control circuit in the invention can use dialing of an audio dialing telephone to achieve remote control, the control mode is novel and delicate, the control circuit does not need to be arranged again, the control reliability is higher than wireless control, and the application prospect is good.

Description

technical field [0001] The invention relates to a remote control circuit, in particular to a remote control circuit for dialing with an audio frequency dialing telephone. The invention belongs to the technical field of control. Background technique [0002] There are many remote control problems in actual work. The remote control can be wireless remote control, but its reliability is not high. Wired remote control can be more reliable, but currently generally requires separate control lines. There are dual-tone dialing telephones and telephone lines in the prior art, but there is no technology using them for remote control. Contents of the invention [0003] In order to solve the deficiencies of the prior art, the object of the present invention is to provide a remote control circuit to solve the problem in the prior art that it is difficult to use an audio dial telephone to dial for remote control. [0004] In order to achieve the above object, the present invention ad...

Claims

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Application Information

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IPC IPC(8): H04M11/00
CPCH04M11/007
Inventor 王邠薄宜勇
Owner NANJING INST OF RAILWAY TECH
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