Novel single-phase carrier communication module

Abstract

The utility model aims to provide a novel single-phase carrier communication module which can realize bidirectional, high-speed and stable transmission of data on a power line. According to the utility model, the novel single-phase carrier wave communication module comprises a carrier wave controller, a power supply circuit, a transmitting circuit, a receiving circuit and an optocoupler zero-crossing circuit, and the carrier wave controller is used for signal conversion and signal transmission between a power line and the electric energy meter. The power supply circuit provides power for the whole novel single-phase carrier communication module, the transmitting circuit is connected between the carrier controller and the power line and used for transmitting carrier data to the power line, and the receiving circuit is connected between the carrier controller and the power line and used for receiving the carrier data from the power line. The optocoupler zero-crossing circuit is connected between the carrier controller and the power line and provides reference zero voltage for the carrier controller. The utility model relates to the technical field of Internet of Things.

Description

Technical Field

[0001] The utility model relates to the technical field of Internet of Things, and specifically, to a novel single-phase carrier communication module. Background Art

[0002] The power Internet of Things (IoT) is currently experiencing rapid growth, largely due to the accumulation and development of power line carrier communication technology. Power line carrier communication is a specialized communication method that utilizes the low-voltage distribution network as a transmission medium for data transmission and information exchange. How to better utilize the power grid to achieve high-quality data transmission has become a global hot topic. my country's current low-voltage distribution network layout is complex, with power lines experiencing large and complex load variations, numerous interference and noise sources, and significant signal attenuation. These channel characteristics have become a bottleneck restricting the development of this technology.

[0003] In view of this, designing a terminal product for power line broadband carrier communication, using advanced modulation technology to achieve two-way, high-speed and stable transmission of data on the power line, can lay the foundation for the development of the power Internet of Things. Utility Model Content

[0004] In view of the deficiencies in the prior art, the present invention proposes a novel single-phase carrier communication module that can realize bidirectional, high-speed and stable data transmission on power lines.

[0005] To achieve the above purpose, the technical solution adopted by the utility model is: a new single-phase carrier communication module, the new single-phase carrier communication module is connected to the electric energy meter through a serial port, the new single-phase carrier communication module includes

[0006] A carrier controller for performing signal conversion and signal transmission between the power line and the electric energy meter,

[0007] A power supply circuit for providing power to the novel single-phase carrier communication module,

[0008] a transmitting circuit connected between the carrier controller and the power line and configured to transmit carrier data to the power line;

[0009] a receiving circuit connected between the carrier controller and the power line for receiving carrier data from the power line, and

[0010] An optocoupler zero-crossing circuit is connected between the carrier controller and the power line and provides a reference zero voltage for the carrier controller.

[0011] The carrier controller is also connected to a status indicator light, which consists of LED1 and LED2.

[0012] The carrier controller is further provided with a supercapacitor assembly as a backup power supply, and the supercapacitor assembly includes a first supercapacitor and a second supercapacitor connected in parallel.

[0013] A signal amplifying circuit is further provided between the transmitting circuit and the carrier controller, and the signal amplifying circuit is composed of a second transistor, a third diode, a third inductor and a fourth inductor.

[0014] The carrier controller uses a carrier chip with the model number of Hi3921SV100.

[0015] The power supply circuit is provided by the electric energy meter, and the power supply circuit is composed of a power supply chip with model number XD308H. When the electric energy meter operates within the specified working voltage range, the output voltage range of the power supply circuit is 12V±1V.

[0016] The transmitting circuit and the receiving circuit perform signal transmission and reception via a coupling transformer.

[0017] The optocoupler zero-crossing circuit includes a filter circuit, an optocoupler and a transistor connected in sequence, and the filter circuit is composed of a first resistor, a second resistor, a first diode, a second diode and a first capacitor.

[0018] The beneficial effects of the present invention are as follows: in the present invention, the novel single-phase carrier communication module includes a carrier controller, a power supply circuit, a sending circuit, a receiving circuit and an optocoupler zero-crossing circuit, wherein the carrier controller is used to perform signal conversion and realize signal transmission between the power line and the electric energy meter, the power supply circuit provides power for the entire novel single-phase carrier communication module, the sending circuit is connected between the carrier controller and the power line, and is used to send carrier data to the power line, the receiving circuit is connected between the carrier controller and the power line, and is used to receive carrier data from the power line, the optocoupler zero-crossing circuit is connected between the carrier controller and the power line and provides a reference zero voltage for the carrier controller; the electric energy meter is connected through the serial port to realize the detection of the electric energy meter power, without the need to arrange an additional communication network, and the power grid can be directly used to realize Internet of Things control; through the coordinated action of the carrier controller, carrier communication of the power line is realized, and bidirectional, high-speed and stable transmission of data on the power line is realized. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a simple structural connection diagram of the utility model;

[0020] Figure 2 is a circuit schematic diagram of the carrier controller;

[0021] Figure 3 is a circuit schematic diagram of the receiving circuit, transmitting circuit and signal amplifying circuit;

[0022] Figure 4 is a circuit schematic diagram of the serial port;

[0023] Figure 5 1 is a circuit schematic diagram of the optocoupler zero-crossing circuit;

[0024] Figure 6 1 is a circuit diagram of the power supply circuit. DETAILED DESCRIPTION

[0025] like Figures 1 to 6 As shown, in the present invention, the new single-phase carrier communication module 1 is connected to the electric energy meter 3 via the serial port 2, and the new single-phase carrier communication module 1 includes

[0026] A carrier controller 11 for performing signal conversion and signal transmission between the power line 4 and the electric energy meter 3,

[0027] A power supply circuit 12 for providing power to the novel single-phase carrier communication module 1,

[0028] A transmitting circuit 13 connected between the carrier controller 11 and the power line 4 and configured to transmit carrier data to the power line 4,

[0029] a receiving circuit 14 connected between the carrier controller 11 and the power line 4 for receiving carrier data from the power line 4, and

[0030] An optocoupler zero-crossing circuit 15 is connected between the carrier controller 11 and the power line 4 and provides a reference zero voltage for the carrier controller 11 .

[0031] A status indicator light 16 is also connected to the carrier controller 11, and the status indicator light 16 consists of LED1 and LED2. A supercapacitor assembly 17 is also provided on the carrier controller 11 as a backup power supply. The supercapacitor assembly 17 includes a first supercapacitor U6 and a second supercapacitor U7 connected in parallel. A signal amplification circuit 18 is also provided between the transmitting circuit 13 and the carrier controller 11. The signal amplification circuit 18 consists of a second transistor Q2, a third diode Q3, a third inductor L3, and a fourth inductor L4. The carrier controller 11 uses a carrier chip model Hi3921SV100. The power supply circuit 12 is provided by the electric energy meter 3, and the power supply circuit 12 consists of a power supply chip model XD308H. When the electric energy meter 3 operates within the specified operating voltage range, the output voltage range of the power supply circuit 12 is 12V±1V. The transmitting circuit 13 and the receiving circuit 14 transmit and receive signals through a coupling transformer U10. The optocoupler zero-crossing circuit 15 includes a filter circuit, an optocoupler U1 and a transistor Q1 connected in sequence. The filter circuit is composed of a first resistor R1, a second resistor R2, a first diode D1, a second diode D2 and a first capacitor C1.

[0032] In the present invention, the status indicator light includes a green light and a red light. When the new single-phase carrier communication module of the present invention is successfully connected to the grid, the green indicator light flashes, indicating that the carrier communication module successfully receives data from the grid; when the red indicator light flashes, it indicates that the carrier communication module sends data to the grid normally; when the red indicator light is on for 3 seconds and off for 5 seconds alternately, it indicates that the carrier networking is unsuccessful.

[0033] In the present invention, a central coordinator is also connected to the power line. Specifically, when the entire module is started normally, the carrier controller receives the meter reading message of the electricity meter sent from the central coordinator and forwards it to the electricity meter. After the electricity meter returns the data, it is sent to the central coordinator through the PLC, thereby realizing data transmission from the power network, which greatly facilitates the construction of the Internet of Things.

[0034] The above description is only the optimal solution embodiment of the present invention and is not intended to limit the present invention. Various modifications or replacements of the present invention made by those skilled in the art without departing from the essence and protection scope of the present invention should also be within the scope of protection of the present invention.

Claims

1. A novel single-phase carrier communication module, wherein the novel single-phase carrier communication module (1) is connected to an electric energy meter (3) via a serial port (2), and is characterized in that: The novel single-phase carrier communication module (1) comprises a carrier controller (11) for performing signal conversion and signal transmission between the power line (4) and the electric energy meter (3), a power supply circuit (12) for providing power to the novel single-phase carrier communication module (1), a transmitting circuit (13) connected between the carrier controller (11) and the power line (4) and used for transmitting carrier data to the power line (4), a receiving circuit (14) connected between the carrier controller (11) and the power line (4) for receiving carrier data from the power line (4), and An optocoupler zero-crossing circuit (15) is connected between the carrier controller (11) and the power line (4) and provides a reference zero voltage for the carrier controller (11).

2. The novel single-phase carrier communication module according to claim 1 is characterized in that: A status indicator light (16) is also connected to the carrier controller (11), and the status indicator light (16) consists of an LED1 and an LED2.

3. The novel single-phase carrier communication module according to claim 1 is characterized in that: A supercapacitor assembly (17) is also provided on the carrier controller (11) as a backup power supply. The supercapacitor assembly (17) includes a first supercapacitor (U6) and a second supercapacitor (U7) connected in parallel.

4. The novel single-phase carrier communication module according to claim 1 is characterized in that: A signal amplifying circuit (18) is further provided between the transmitting circuit (13) and the carrier controller (11), and the signal amplifying circuit (18) is composed of a second transistor (Q2), a third diode (Q3), a third inductor (L3) and a fourth inductor (L4).

5. The novel single-phase carrier communication module according to claim 1, characterized in that: The carrier controller (11) uses a carrier chip of model Hi3921SV100.

6. The novel single-phase carrier communication module according to claim 1 is characterized in that: The power supply circuit (12) is provided by the electric energy meter (3), and the power supply circuit (12) is composed of a power supply chip of model XD308H. When the electric energy meter (3) operates within a specified operating voltage range, the output voltage range of the power supply circuit (12) is 12V±1V.

7. The novel single-phase carrier communication module according to claim 1 is characterized in that: The transmitting circuit (13) and the receiving circuit (14) transmit and receive signals via a coupling transformer (U10).

8. The novel single-phase carrier communication module according to claim 1 is characterized in that: The optocoupler zero-crossing circuit (15) comprises a filter circuit, an optocoupler (U1), and a transistor (Q1) connected in sequence, wherein the filter circuit comprises a first resistor (R1), a second resistor (R2), a first diode (D1), a second diode (D2), and a first capacitor (C1).

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