Communication control module for dual-power supply system

Abstract

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, which comprises a low-voltage direct-current output module, a communication transmitting module and a communication receiving module, and is characterized in that the low-voltage direct-current output module outputs a pulse square-wave direct-current power supply to a ground zero line; the communication sending module comprises an encoder and a first backward voltage output circuit; the communication receiving module comprises a decoder and a first backward voltage receiving circuit, the first backward voltage receiving circuit is conducted when backward voltage appears on a ground zero line, and high level is output to the input end of the decoder when the first backward voltage receiving circuit is conducted. The beneficial effects are that the low-voltage direct current output module outputs pulse square wave direct current with certain frequency and duty ratio on the ground zero line to realize dual-power supply; and the communication sending module can send a reverse voltage pulse to the communication receiving module in a zero potential time period in the pulse square wave direct current so as to realize communication connection between the communication sending module and the communication receiving module.

Description

Technical Field

[0001] The utility model relates to the technical field of power supply systems, and in particular to a communication control module used in a dual power supply system. Background Art

[0002] With the popularization of smart homes, the demand for communication control of smart appliances is gradually increasing. At present, communication control for appliances mainly includes wired control and wireless control. Wired control requires laying communication lines in advance, which has high transformation costs, while wireless communication control has problems such as limited signal coverage and complex user installation and operation. Utility Model Content

[0003] The purpose of the utility model is to provide a communication control module for a dual power supply system, which can perform communication transmission on the basis of an existing power supply system and solve the problems existing in the existing communication control.

[0004] To achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a communication control module for a dual power supply system, comprising 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 to output a pulse square wave direct current power supply with a certain frequency and a certain duty cycle to a ground neutral line; the communication sending module comprises an encoder and a first reverse voltage output circuit, wherein the input end of the encoder is a control information input end, and the output end of the encoder is used to control the first reverse voltage output circuit to be turned on or off, and when the first reverse voltage output circuit is turned on, a reverse voltage is output to the ground neutral line during a low level period of the pulse square wave direct current power supply on the ground neutral line; the communication receiving module comprises a decoder and a first reverse voltage receiving circuit, wherein the first reverse voltage output circuit and the second reverse voltage receiving circuit are both connected in parallel to the ground neutral line, and the first reverse voltage receiving circuit is turned on when a reverse voltage appears on the ground neutral line, and when the first reverse voltage receiving circuit is turned on, a high level is output to the input end of the decoder, and the output end of the decoder is a control information output end.

[0005] Specifically, it also includes a wireless communication control module, which includes 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 also connected in parallel to the ground neutral line; the processor is connected to other devices for wireless communication through the wireless communication module, and the processor triggers the second reverse voltage output circuit to turn on or off according to the input control information of the wireless communication module. When the second reverse voltage output circuit is turned on, it outputs a reverse voltage to the ground neutral line during the low level period of the pulsed square wave DC power supply on the ground neutral line. The second reverse voltage receiving circuit is turned on when a reverse voltage appears on the ground neutral line. When the second reverse voltage receiving circuit is turned on, it outputs a high level to the processor. The processor processes the high level output by the second reverse voltage receiving circuit into output control information and sends it to other devices through the wireless communication module.

[0006] Specifically, the first reverse voltage output circuit and the second reverse voltage output circuit both use an inductor circuit with a trigger conduction circuit.

[0007] Specifically, the encoder, decoder, processor and wireless communication module are all connected to the low-voltage direct current output module through the ground neutral line to obtain power supply.

[0008] Specifically, the first reverse voltage receiving circuit and the second reverse voltage receiving circuit both use an optocoupler triggered conduction circuit.

[0009] The beneficial effects of the utility model are as follows: by utilizing a low-voltage direct current output module to output a pulsed square wave direct current of a certain frequency and duty cycle on the ground neutral line, dual power supply is achieved; the communication sending module can utilize the zero potential time period in the pulsed square wave direct current to send a reverse voltage pulse to the communication receiving module, thereby realizing the communication connection between the two; at the same time, a wireless communication control module can also be provided, and the wireless communication control module is utilized to establish a communication connection with the communication sending module and the communication receiving module, thereby further improving the communication control range. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Attached Figure 1 A schematic diagram of the circuit connection between the communication control module and the power supply system in the embodiment;

[0011] Attached Figure 2 A circuit connection diagram of a communication sending module in an embodiment;

[0012] Attached Figure 3 A circuit connection diagram of a communication receiving module in an embodiment;

[0013] Attached Figure 4 4 is a circuit connection diagram of the wireless communication control module in the embodiment. DETAILED DESCRIPTION

[0014] Example 1, reference Figure 1-4 A communication control module for a dual power supply system, comprising 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 to output a pulse square wave direct current power supply with a certain frequency and a certain duty cycle to a ground neutral line; the communication sending module comprises an encoder and a first reverse voltage output circuit, wherein the input end of the encoder is a control information input end, and the output end of the encoder is used to control the first reverse voltage output circuit to be turned on or off, and when the first reverse voltage output circuit is turned on, a reverse voltage is output to the ground neutral line during a low level period of the pulse square wave direct current power supply on the ground neutral line; the communication receiving module comprises a decoder and a first reverse voltage receiving circuit, wherein the first reverse voltage output circuit and the first reverse voltage receiving circuit are both connected in parallel to the ground neutral line, the first reverse voltage receiving circuit is turned on when a reverse voltage appears on the ground neutral line, and when the first reverse voltage receiving circuit is turned on, a high level is output to the input end of the decoder, and the output end of the decoder is a control information output end.

[0015] In this embodiment, the low-voltage DC output module outputs a pulse square wave DC with a certain frequency and a certain duty cycle to the ground neutral line, so that the ground neutral line can be used to provide low-voltage DC, realize the power supply of ordinary AC and low-voltage DC dual power supplies, and the low-voltage DC output from the ground neutral line can power the communication sending module and the communication receiving module. When the low-voltage DC output module outputs a pulse square wave DC with a certain frequency and a certain duty cycle on the ground neutral line, the first reverse voltage output circuit of the communication sending module can use the zero potential time period in the pulse square wave DC to send a reverse voltage pulse to the first reverse voltage receiving circuit of the communication receiving module. The communication sending module uses an encoder to encode the control signal to obtain a series of high and low level pulses and outputs it to the first reverse voltage output circuit, so that it is triggered to conduct with the same pulse, thereby sending the same pulse signal to the first reverse voltage receiving circuit, and the first reverse voltage receiving circuit is intermittently conducted according to the pulse signal, thereby sending the same pulse signal to the decoder, and the decoder decodes the series of pulse signals to obtain the original control signal, thereby realizing the effective transmission of the control signal.

[0016] In addition, a wireless communication control module can also be set up, which includes 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 also connected in parallel to the ground neutral line; the processor is connected to other devices for wireless communication through the wireless communication module, and the processor triggers the second reverse voltage output circuit to turn on or off according to the input control information of the wireless communication module. When the second reverse voltage output circuit is turned on, it outputs a reverse voltage to the ground neutral line during the low level period of the pulsed square wave DC power supply on the ground neutral line. The second reverse voltage receiving circuit is turned on when a reverse voltage appears on the ground neutral line. When the second reverse voltage receiving circuit is turned on, it outputs a high level to the processor, and the processor processes the high level output by the second reverse voltage receiving circuit into output control information and sends it to other devices through the wireless communication module. The working principle of the wireless communication control module is the same as that of the communication sending module and the communication receiving module. The difference is that the control signal can be sent or received through the wireless communication module. Specifically, the processor can encode the control signal received by the wireless communication module and send the corresponding reverse voltage pulse to the ground neutral 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 neutral line into a control signal and send it through the wireless communication module.

[0017] Specifically, the first reverse voltage output circuit and the second reverse voltage output circuit both use an inductor circuit with a trigger conduction circuit. When the first reverse voltage output circuit receives a high level, it will trigger the conduction inductor circuit. The inductor is charged during the high level time period of the pulsed square wave DC on the ground neutral line and sends a reverse voltage pulse during the low level time period; the first reverse voltage receiving circuit and the second reverse voltage receiving circuit both use an optocoupler trigger conduction circuit, and use the optocoupler to detect the reverse voltage on the ground neutral line. When there is a reverse voltage, the optocoupler is turned on to send a high level, thereby realizing the reception of the reverse voltage pulse on the ground neutral line.

[0018] Specifically, the encoder, decoder, processor and wireless communication module are all connected to the low-voltage direct current output module through the ground neutral line to obtain power supply.

[0019] Of course, the above are only preferred implementations of the present utility model, and are not intended to limit the scope of use of the present utility model. Therefore, any equivalent changes made to the principles of the present utility model should be included in the protection scope of the present utility model.

Claims

1. A communication control module for a dual power supply system, characterized in that: It includes a low-voltage direct current output module, a communication sending module and a communication receiving module. The low-voltage direct current output module is used to output a pulse square wave direct current power supply with a certain frequency and a certain duty cycle to the ground neutral line; the communication sending module includes an encoder and a first reverse voltage output circuit, the input end of the encoder is a control information input end, and the output end of the encoder is used to control the first reverse voltage output circuit to be turned on or off. When the first reverse voltage output circuit is turned on, it outputs a reverse voltage to the ground neutral line during the low level period of the pulse square wave direct current power supply on the ground neutral line; the communication receiving module includes a decoder and a first reverse voltage receiving circuit, the first reverse voltage output circuit and the second reverse voltage receiving circuit are both connected in parallel to the ground neutral line, the first reverse voltage receiving circuit is turned on when a reverse voltage appears on the ground neutral line, and the first reverse voltage receiving circuit outputs a high level to the input end of the decoder when the first reverse voltage receiving circuit is turned on, and the output end of the decoder is a control information output end.

2. A communication control module for a dual power supply system according to claim 1, characterized in that: It also includes a wireless communication control module, which includes 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 also connected in parallel to the ground neutral line; the processor is connected to other devices for wireless communication through the wireless communication module, and the processor triggers the second reverse voltage output circuit to turn on or off according to the input control information of the wireless communication module. When the second reverse voltage output circuit is turned on, it outputs a reverse voltage to the ground neutral line during the low level period of the pulsed square wave DC power supply on the ground neutral line. The second reverse voltage receiving circuit is turned on when a reverse voltage appears on the ground neutral line. When the second reverse voltage receiving circuit is turned on, it outputs a high level to the processor. The processor processes the high level output by the second reverse voltage receiving circuit into output control information and sends it to other devices through the wireless communication module.

3. The communication control module for a dual power supply system according to claim 2, characterized in that: The first reverse voltage output circuit and the second reverse voltage output circuit both use an inductor circuit with a trigger conduction circuit.

4. The communication control module for a dual power supply system according to claim 2, characterized in that: The encoder, decoder, processor and wireless communication module are all connected to the low-voltage direct current output module through a ground neutral line to obtain power supply.

5. The communication control module for a dual power supply system according to claim 2, characterized in that: The first reverse voltage receiving circuit and the second reverse voltage receiving circuit both adopt an optocoupler triggered conduction circuit.

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