Communication control module for dual-power supply system
Technical Field
The utility model relates to the technical field of power supply systems, in particular to a communication control module for a dual-power supply system.
Background
With the popularization of smart home, the demand for communication control of smart appliances is also increasing. At present, communication control for an electric appliance mainly comprises wired control and wireless control, wherein a communication line is required to be paved in advance in the wired control, the transformation cost is high, and the wireless communication control has the problems of limited signal coverage range, complex user installation operation and the like.
Disclosure of utility model
The utility model aims to provide a communication control module for a dual-power supply system, which can carry out communication transmission on the basis of the existing power supply system and solves the problems of the existing communication control.
The communication control module for the dual-power supply system comprises a low-voltage direct current output module, a communication sending module and a communication receiving module, wherein the low-voltage direct current output module is used for outputting pulse square wave direct current power with a certain frequency and a certain duty ratio to a ground zero line, the communication sending module comprises an encoder and a first reverse voltage output circuit, the input end of the encoder is a control information input end, the output end of the encoder is used for controlling the first reverse voltage output circuit to be conducted or turned off, the first reverse voltage output circuit outputs reverse voltage to the ground zero line during the low level period of the pulse square wave direct current power on the ground zero line when being conducted, the communication receiving module comprises a decoder and a first reverse voltage receiving circuit, the first reverse voltage output circuit and the second reverse voltage receiving circuit are connected to the ground zero line in parallel, the first reverse voltage receiving circuit is conducted when the reverse voltage appears on the ground zero line, the first reverse voltage receiving circuit outputs high level to the input end of the decoder when being conducted, and the output end of the decoder is the control information output end.
The wireless communication control module comprises a processor, a wireless communication module and a second reverse voltage output circuit and/or a second reverse voltage receiving circuit, wherein the second reverse voltage output circuit and/or the second reverse voltage receiving circuit are/is also connected to the ground zero line in parallel, the processor is in wireless communication connection with other equipment through the wireless communication module, the processor triggers the second reverse voltage output circuit to be conducted or disconnected according to input control information of the wireless communication module, the second reverse voltage output circuit outputs reverse voltage to the ground zero line in a low level period of a pulse square wave direct current power supply on the ground zero line when being conducted, the second reverse voltage receiving circuit is conducted when the reverse voltage appears on the ground zero line, the second reverse voltage receiving circuit outputs high level to the processor when being conducted, and the processor processes the output control information to be sent to other equipment through the wireless communication module according to the high level output by the second reverse voltage receiving circuit.
Specifically, the first reverse voltage output circuit and the second reverse voltage output circuit both adopt an inductance circuit with a trigger conduction circuit.
Specifically, the encoder, the decoder, the processor and the wireless communication module are all connected with the low-voltage direct current output module through a ground zero line to obtain power supply.
Specifically, the first reverse voltage receiving circuit and the second reverse voltage receiving circuit both adopt optocoupler trigger conduction circuits.
The utility model has the beneficial effects that the dual-power supply is realized by utilizing the low-voltage direct current output module to output pulse square wave direct current with certain frequency and duty ratio on the ground zero line, the communication transmitting module can transmit reverse voltage pulse to the communication receiving module by utilizing the time period of zero potential in the pulse square wave direct current so as to realize communication connection of the pulse square wave direct current and the communication receiving module, and meanwhile, the wireless communication control module can be arranged, and the wireless communication control module is in communication connection with the communication transmitting module and the communication receiving module so as to further improve the communication control range.
Drawings
FIG. 1 is a schematic diagram of a circuit connection between a communication control module and a power supply system in an embodiment;
FIG. 2 is a circuit diagram of a communication transmitting module according to an embodiment;
FIG. 3 is a circuit diagram of a communication receiving module according to an embodiment;
fig. 4 is a circuit diagram of a wireless communication control module according to an embodiment.
Detailed Description
An embodiment 1 of the communication control module for a dual-power supply system refers to fig. 1-4, and comprises a low-voltage direct current output module, a communication sending module and a communication receiving module, wherein the low-voltage direct current output module is used for outputting pulse square wave direct current power with a certain frequency and a certain duty ratio to a ground zero line, the communication sending module comprises an encoder and a first reverse voltage output circuit, the input end of the encoder is a control information input end, the output end of the encoder is used for controlling the first reverse voltage output circuit to be conducted or turned off, reverse voltage is output to the ground zero line during the low level period of the pulse square wave direct current power on the ground zero line when the first reverse voltage output circuit is conducted, the first reverse voltage output circuit and the first reverse voltage receiving circuit are connected to the ground zero line in parallel, the first reverse voltage receiving circuit is conducted when reverse voltage appears on the ground zero line, the first reverse voltage receiving circuit is conducted to the input end of the decoder, and the output end of the decoder is the control information output end.
In this embodiment, the low-voltage direct current output module outputs a pulse square wave direct current with a certain frequency and a certain duty ratio to the ground zero line, so that the ground zero line can be utilized to provide the low-voltage direct current, the power supply of the common alternating current and the low-voltage direct current is realized, and the low-voltage direct current output by the ground zero line can supply power for the communication sending module and the communication receiving module. When the low-voltage direct current output module outputs pulse square wave direct current with a certain frequency and a certain duty ratio on a ground zero line, the first reverse voltage output circuit of the communication transmitting module can transmit reverse voltage pulse to the first reverse voltage receiving circuit of the communication receiving module by utilizing the time period of zero potential in the pulse square wave direct current, the communication transmitting module encodes a control signal by utilizing the encoder to obtain a series of high-low level pulses and outputs the series of high-low level pulses to the first reverse voltage output circuit, so that the series of high-low level pulses are triggered and conducted by the same pulses, the same pulse signals are transmitted to the first reverse voltage receiving circuit, the first reverse voltage receiving circuit is conducted intermittently according to the pulse signals, the same pulse signals are transmitted to the decoder, and the decoder decodes the series of pulse signals to obtain original control signals, so that effective transmission of the control signals is realized.
In addition, a wireless communication control module can be further arranged, the wireless communication control module comprises a processor, a wireless communication module and a second reverse voltage output circuit and/or a second reverse voltage receiving circuit, the second reverse voltage output circuit and/or the second reverse voltage receiving circuit are/is connected to the ground zero line in parallel, the processor is in wireless communication connection with other equipment through the wireless communication module, the processor triggers the second reverse voltage output circuit to be conducted or disconnected according to input control information of the wireless communication module, the second reverse voltage output circuit outputs reverse voltage to the ground zero line during a low level period of a pulse square wave direct current power supply on the ground zero line when the second reverse voltage output circuit is conducted, the second reverse voltage receiving circuit is conducted when the reverse voltage appears on the ground zero line, the second reverse voltage receiving circuit outputs high level to the processor when the second reverse voltage receiving circuit is conducted, and the processor processes the output control information to be transmitted to other equipment through the wireless communication module according to the high level output by the second reverse voltage receiving circuit. The working principle of the wireless communication control module is the same as that of the communication transmitting module and the communication receiving module, and the difference is that the wireless communication module can transmit or receive the control signal, specifically, the processor can encode the control signal received by the wireless communication module and transmit the corresponding reverse voltage pulse to the ground zero line through the second reverse voltage output circuit, and the processor can decode the reverse voltage pulse received by the second reverse voltage receiving circuit from the ground zero line into the control signal and transmit the control signal through the wireless communication module.
Specifically, the first reverse voltage output circuit and the second reverse voltage output circuit both adopt an inductance circuit with a trigger conduction circuit, the first reverse voltage output circuit triggers the conduction inductance circuit when receiving high level, the inductance charges in a high level time period of pulse square wave direct current on a ground zero line and transmits reverse voltage pulse in a low level time period, the first reverse voltage receiving circuit and the second reverse voltage receiving circuit both adopt an optocoupler trigger conduction circuit, reverse voltage on the ground zero line is detected by using an optocoupler, and when the reverse voltage exists, the optocoupler is conducted to transmit high level, so that the reception of the reverse voltage pulse on the ground zero line is realized.
Specifically, the encoder, the decoder, the processor and the wireless communication module are all connected with the low-voltage direct current output module through a ground zero line to obtain power supply.
Of course, the above embodiments are only preferred embodiments of the present utility model, and the scope of the present utility model is not limited thereto, so that all equivalent modifications made in the principles of the present utility model are included in the scope of the present utility model.