4G / optical fiber integrated transmission type concentrator communication device

Abstract

The invention discloses a 4G / optical fiber integrated transmission type concentrator communication device. One specific embodiment of the 4G / optical fiber integrated transmission type concentrator communication device comprises a concentrator unit, a conversion unit and a transmission unit, the concentrator unit collects electric power data metered by the electric energy meter connected with the concentrator unit and determines the electric power data as data information; the conversion unit is connected with the concentrator unit and the transmission unit, receives the data information of the concentrator unit, converts the data information into optical signals for optical fiber communication, and sends the optical signals to the transmission unit; the transmission unit is in communication connection with a base station, and the transmission unit communicates with the base station through a mobile signal. According to the embodiment, the problem of data acquisition of power grid low-voltage side users in areas which cannot be covered by mobile signals is solved, and meanwhile, the use cost is reduced.

Description

Technical Field

[0001] The present application relates to the technical field of power grid data collection, and specifically to a 4G / fiber-optic integrated transmission concentrator communication device. Background Art

[0002] With the continuous development and popularization of smart grid technology and the increasing demand for intelligent management from end-users, data communication requirements between terminal devices on the low-voltage side of the grid and the control center are gradually increasing. End-user electricity usage data plays an increasingly important role in grid regulation and security, and the requirements for collecting and transmitting power data are becoming increasingly stringent.

[0003] Currently, power data collection and transmission for end users on the low-voltage side of the power grid is achieved through concentrators or communication modules embedded in electricity meters. The existing automatic data collection and transmission method for electricity meters based on concentrators and meter communication modules uploads the data collected by the concentrators or meter communication modules to a nearby mobile base station via 4G or 5G network signals, enabling communication between the concentrators, meter communication modules, and the power grid data master station.

[0004] In some areas where mobile signals are difficult to cover or the signals are unstable, the collection and transmission of power data will be affected, posing a threat to the safe operation of the power grid. Summary of the Invention

[0005] The purpose of this application is to propose a 4G / fiber-optic integrated transmission concentrator communication device to solve the technical problems mentioned in the above background technology section, namely, to solve the problem of difficulty in collecting and transmitting power data in areas where mobile signals are unstable or difficult to cover.

[0006] The present application provides a 4G / fiber-optic integrated transmission concentrator communication device, which includes: a concentrator unit, a conversion unit and a transmission unit; the above-mentioned concentrator unit collects the power data measured by the electric energy meter connected to it and determines it as data information; the above-mentioned conversion unit is connected to the above-mentioned concentrator unit and the above-mentioned transmission unit, receives the data information of the above-mentioned concentrator unit, and converts the above-mentioned data information into an optical signal of optical fiber communication and sends it to the above-mentioned transmission unit; the above-mentioned transmission unit is communicatively connected to the base station, and the above-mentioned transmission unit communicates with the above-mentioned base station via a mobile signal.

[0007] In some examples, the conversion unit includes an amplifying circuit, a photoelectric conversion circuit, and an output circuit; the amplifying circuit amplifies the data information, the photoelectric conversion circuit converts the data information into an optical signal, and the output circuit outputs the optical signal; wherein: the amplifying circuit includes a resistor R1, a resistor R2, a resistor R3, a resistor R4, a capacitor C1, a capacitor C2, and an amplifier U1; one end of the resistor R1 is connected between the electrical signal input terminal PI1 and the terminal 1 of the amplifier U1; the resistor R2, the resistor R3, and the resistor R4 are connected in series and connected between the input terminal of the amplifier U1 and the electrical signal input terminal PI2; the capacitor C1 is connected between the terminal 1 of the amplifier U1 and the electrical signal input terminal PI2; the terminal 2 of the amplifier U1 is connected to the electrical signal input terminal PI2; the terminal 3 of the amplifier U1 is connected to the electrical signal input terminal PI2 through the capacitor C2; the electrical signal input terminal PI2 is connected to the ground terminal GND.

[0008] In some examples, a first terminal of the photoelectric conversion circuit is connected to the terminal 3 of the amplifier U1 , and a second terminal of the photoelectric conversion circuit is connected to the output circuit.

[0009] In some examples, the output circuit includes a resistor 5 and a capacitor C3, the resistor R5 is connected between the output end of the photoelectric conversion circuit and the optical signal output end PO2; the capacitor C3 is connected between the output end of the photoelectric conversion circuit and the optical signal output end PO1; the optical signal output end PO2 is connected to the ground end GND.

[0010] In some examples, the photoelectric conversion circuit includes a photosensitive diode VD1, a photosensitive diode VD2, a resistor R21, and a capacitor 21; the cathodes of the photosensitive diode VD1 and the photosensitive diode VD2 are respectively connected to the output end of the amplifier circuit; the anode of the photosensitive diode VD1 is connected to the capacitor 21, and the anode of the photosensitive diode VD2 is connected to the resistor R21.

[0011] In some examples, the transmission unit includes an optical communication module, a buffer U1, a buffer U2 and an Ethernet control module; the signal sending end TD of the optical communication module is connected to the signal receiving end R of the Ethernet control module through the buffer U1; the signal receiving end RD of the optical communication module is connected to the signal sending end D of the Ethernet control module through the buffer U2.

[0012] In some examples, the transmission unit further includes a control loop, which is used to control the transmission unit to receive or send information; the control loop includes a resistor R31, a resistor R32, a capacitor C31, a diode D1 and a power controller Q1; the resistor R31 and the capacitor C31 are connected in series and then connected in reverse parallel with the diode D1 to form a parallel branch, one end of the parallel branch is connected to the power supply end, and the other end of the parallel branch is connected to the drain D of the power controller Q1; one end of the resistor R32 is connected to the output of the buffer U2, and the other end of the resistor R32 is connected to the gate of the power controller Q1; the source S of the power controller Q1 is connected to the ground end; the drain D of the power controller Q1 is connected to the signal control end / RE and the signal control end DE of the Ethernet control module

[0013] The present application provides a 4G / fiber-optic integrated transmission concentrator communication device. The concentrator unit collects power data from the low-voltage user side and uploads the data information to the conversion unit via network cables and power carrier lines. The conversion unit converts the data information and sends it via optical fiber to the transmission unit. The transmission unit uses mobile signals to communicate with the base station or power center. This 4G / fiber-optic integrated transmission concentrator communication device enables information exchange between power grid end users and data centers in areas where mobile signals are unavailable or have poor signal coverage. Furthermore, the use of optical fiber for data transmission reduces network usage fees for each concentrator during mobile signal transmission, thereby lowering operating costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Other features, objects and advantages of the present application will become more apparent upon reading the detailed description of non-limiting embodiments made with reference to the following drawings:

[0015] Figure 1 This is a schematic diagram of the communication connection structure of each component unit in the embodiment of the 4G / fiber-optic integrated transmission concentrator communication device of the present application;

[0016] Figure 2 This is a schematic diagram of the conversion principle of the conversion unit in the embodiment of the 4G / fiber-optic integrated transmission concentrator communication device of the present application;

[0017] Figure 3 This is a schematic diagram of the photoelectric conversion circuit in an embodiment of the 4G / fiber-optic integrated transmission concentrator communication device of the present application;

[0018] Figure 4 This is a schematic diagram of multiplexing in the photoelectric conversion circuit in the embodiment of the 4G / fiber-optic integrated transmission concentrator communication device of the present application;

[0019] Figure 5This is a schematic diagram of the signal transmission control circuit of the transmission unit in the embodiment of the 4G / fiber-optic integrated transmission concentrator communication device of the present application. DETAILED DESCRIPTION

[0020] The present application will be further described in detail below with reference to the accompanying drawings and examples. It should be understood that the specific embodiments described herein are merely for the purpose of explaining the relevant invention and are not intended to limit the invention. It should also be noted that, for ease of description, only portions relevant to the relevant invention are shown in the accompanying drawings.

[0021] It should be noted that, in the absence of conflict, the embodiments and features of the embodiments in this application can be combined with each other. The present application will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0022] refer to Figure 1 , Figure 1 A schematic diagram of the communication connection structure of each component unit in an embodiment of a 4G / fiber-optic integrated transmission concentrator communication device to which the present application can be applied is shown.

[0023] like Figure 1 As shown, the 4G / fiber-optic integrated transmission concentrator communication device includes a concentrator unit 1, a conversion unit 2, and a transmission unit 3. The concentrator unit 1, conversion unit 2, and transmission unit 3 are connected in sequence. The concentrator unit 1 is connected to the electric energy meter 5 to collect the electric power data of the electric energy meter 5; the connection between the concentrator unit 1 and the electric energy meter 5 may include but is not limited to a power line communication connection and an RS-485 communication connection. The conversion unit 2 is connected to the concentrator unit 1 and the transmission unit 3 respectively, receives the data signal of the concentrator unit 1, and converts it into an optical signal of optical fiber communication and sends it to the transmission unit 3. The conversion unit 2 and the concentrator unit 1 can be connected via a network cable or an RS-485 communication cable; the conversion unit 2 and the transmission unit 3 are connected via an optical fiber. The transmission unit 3 is connected to the base station 4 for communication, and the transmission unit 3 can communicate with the base station 4 via a mobile signal.

[0024] In this embodiment, the concentrator unit 1 is configured to collect power data from the connected power meters 5 and, in accordance with instructions from the power grid data center, receive information from the power grid data center or transmit data to the power grid data center. It will be appreciated that each concentrator unit 1 can be connected to multiple power meters 5 to collect data from each of the connected power meters 5.

[0025] The conversion unit 2 is used to convert the data signal sent by the concentrator unit 1 into an optical signal transmitted by an optical fiber, or to convert the optical signal sent by the transmission unit 3 into a data signal, thereby realizing signal relay transmission.

[0026] The transmission unit 3 converts the optical signal transmitted by the optical fiber into a mobile network signal and uploads it to the base station 4, or converts the mobile network signal into an optical signal transmitted by the optical fiber and sends it to the conversion unit 2. It can be understood that the base station 4 is directly connected to the power grid data center for communication.

[0027] Continue to refer Figure 2 , Figure 2 Schematic diagram of the conversion principle of the conversion unit in the embodiment of the present application, as shown in FIG. Figure 2 As shown, the conversion unit includes an amplifier circuit, a photoelectric conversion circuit and an output circuit. The amplifier circuit includes resistors R1, R2, R3, R4, capacitors C1, C2 and an amplifier U1.

[0028] One end of the resistor R1 is connected between the electrical signal input terminal PI1 and terminal 1 of the amplifier U1. The resistors R2, R3, and R4 are connected in series between the input terminal of the amplifier U1 and the electrical signal input terminal PI2. The capacitor C1 is connected between terminal 1 of the amplifier U1 and the electrical signal input terminal PI2. Terminal 2 of the amplifier U1 is connected to the electrical signal input terminal PI2. The capacitor C2 is connected between terminal 3 of the amplifier U1 and the electrical signal input terminal PI2.

[0029] Terminal 1 of the amplifier U1 is an electrical signal input terminal, terminal 2 of the amplifier U1 is connected to the ground terminal, and terminal 3 of the amplifier U1 is an amplifying output terminal.

[0030] A first terminal of the photoelectric conversion circuit is connected to the terminal 3 of the amplifier U1 , and a second terminal of the photoelectric conversion circuit is connected to the output circuit.

[0031] The output circuit includes a resistor R5 and a capacitor C3. The resistor R5 is connected between the output terminal of the photoelectric conversion circuit and the optical signal output terminal PO2; the capacitor C3 is connected between the output terminal of the photoelectric conversion circuit and the optical signal output terminal PO1.

[0032] In this embodiment, the signal connected between the above-mentioned electrical signal input terminal PI1 and the above-mentioned electrical signal input terminal PI2 is the electrical signal to be converted, and the signal connected between the above-mentioned optical signal output terminal PO1 and the above-mentioned optical signal output terminal PO2 is the converted optical signal; the above-mentioned electrical signal input terminal PI2 and the above-mentioned optical signal output terminal PO2 are respectively connected to the ground terminal GND.

[0033] Continue to participate Figure 3 , Figure 3 Schematic diagram of the photoelectric conversion circuit in the embodiment of the present application, as shown in FIG. Figure 3As shown, the photoelectric conversion circuit includes a photosensitive diode VD1, a photosensitive diode VD2, a resistor R21, and a capacitor 21. The cathodes of the photosensitive diodes VD1 and VD2 are respectively connected to the output terminal of the amplifier circuit, the anode of the photosensitive diode VD1 is connected to the capacitor 21, and the anode of the photosensitive diode VD2 is connected to the resistor R21. The other end of the capacitor 21 serves as the positive output terminal of the photoelectric conversion circuit and is connected to the output terminal P21 of the photoelectric conversion circuit; the other end of the resistor R21 serves as the negative output terminal of the photoelectric conversion circuit and is connected to the output terminal P22 of the photoelectric conversion circuit; the output terminal P22 of the photoelectric conversion circuit is connected to the ground terminal GND. In some specific implementations, the photosensitive diodes VD1 and VD2 can be arrays consisting of multiple photosensitive diodes.

[0034] Furthermore, the above-mentioned photoelectric conversion circuit can also be a multiplexer. Figure 4 Schematic diagram of multiplexing in the photoelectric conversion circuit in the embodiment of the present application. Figure 4 As shown, the multiplexing of the above-mentioned photoelectric conversion circuit is in the above-mentioned Figure 3 The circuit shown above is enhanced with the addition of a photodiode VD3, a photodiode VD4, a resistor R22, and a capacitor 22. The cathodes of the photodiodes VD3 and VD4 are connected to the output of the amplifier circuit, respectively. The anode of the photodiode VD3 is connected to the capacitor 21, and the anode of the photodiode VD4 is connected to the resistor R21. The other end of the capacitor 22 is connected to the output P21 of the photoelectric conversion circuit, and the other end of the resistor R22 is connected to the ground GND of the photoelectric conversion circuit. In some implementations, the photodiodes VD3 and VD4 may be a photosensitive array consisting of multiple photodiodes.

[0035] Further, refer to Figure 5 , Figure 5 FIG. 1 is a schematic diagram of a signal transmission control circuit of a transmission unit in an embodiment of the present application. Figure 5 As shown, the transmission unit includes an optical communication module, a buffer U1, a buffer U2, and an Ethernet control module. The optical communication module's signal transmitting end TD is connected to the Ethernet control module's signal receiving end R via buffer U1; the optical communication module's signal receiving end RD is connected to the Ethernet control module's signal transmitting end D via buffer U2. The buffers coordinate and buffer data transmission, achieving synchronization. The optical communication module's TX and RX terminals are each connected to optical fibers, which in turn connect to the conversion unit 2.

[0036] The transmission unit also includes a control circuit for controlling the transmission unit to receive or transmit information. The control circuit includes a resistor R31, a resistor R32, a capacitor C31, a diode D1, and a power controller Q1. Resistor R31 and capacitor C31 are connected in series and then connected in antiparallel to diode D1, forming a parallel branch. One end of the parallel branch is connected to a power supply terminal, and the other end of the parallel branch is connected to the drain D of the power controller Q1. The power supply terminal is connected to the same power supply as the power supply terminal VCC of the optical communication module, which is a 5V power supply in this embodiment. One end of the resistor R32 is connected to the output of buffer U2, and the other end is connected to the gate of the power controller Q1. The source S of the power controller Q1 is connected to ground, and the drain D of the power controller Q1 is connected to the signal control terminal / RE and the signal control terminal DE of the Ethernet control module. Signals are output through buffer U2 to control the transmission unit to upload or download information.

[0037] In the embodiment of the present application, the 4G / fiber-optic integrated transmission concentrator communication device uploads the power information collected by the terminal power meter of the concentrator unit to the power grid control center through the conversion unit and the transmission unit. Compared with the existing technology, it has the following advantages:

[0038] The data signal is converted into an optical signal and transmitted through optical fiber, enabling communication between smart meters and power grid data centers in areas where mobile signals cannot cover or have poor signal coverage.

[0039] Remote data transmission via optical fiber reduces communication costs for data collection.

[0040] The control circuit of the transmission unit performs switching control according to the signal output of the optical communication module to realize the reception or transmission conversion of the signal.

[0041] The above description is merely a preferred embodiment of the present application and an illustration of the technical principles employed. Those skilled in the art should understand that the scope of the invention herein is not limited to the technical solutions formed by the specific combination of the above-mentioned technical features, but also encompasses other technical solutions formed by any combination of the above-mentioned technical features or their equivalents without departing from the inventive concept. For example, a technical solution formed by replacing the above-mentioned features with (but not limited to) technical features having similar functions disclosed in this application.

Claims

1. A 4G / fiber integrated transmission concentrator communication device, characterized in that: The 4G / fiber-optic integrated transmission concentrator communication device includes: a concentrator unit, a conversion unit and a transmission unit; the concentrator unit collects the power data measured by the electric energy meter connected to it and determines it as data information; the conversion unit is connected to the concentrator unit and the transmission unit, receives the data information of the concentrator unit, and converts the data information into an optical signal for optical fiber communication and sends it to the transmission unit; the transmission unit is communicatively connected to the base station, and the transmission unit communicates with the base station via a mobile signal.

2. The 4G / fiber integrated transmission concentrator communication device according to claim 1, characterized in that: The conversion unit includes an amplifier circuit, a photoelectric conversion circuit, and an output circuit; the amplifier circuit amplifies the data information, the photoelectric conversion circuit converts the data information into an optical signal, and the output circuit outputs the optical signal; wherein: The amplifying circuit includes a resistor R1, a resistor R2, a resistor R3, a resistor R4, a capacitor C1, a capacitor C2 and an amplifier U1; one end of the resistor R1 is connected between the electrical signal input terminal PI1 and the terminal 1 of the amplifier U1; the resistor R2, the resistor R3 and the resistor R4 are connected in series and connected between the input terminal of the amplifier U1 and the electrical signal input terminal PI2; the capacitor C1 is connected between the terminal 1 of the amplifier U1 and the electrical signal input terminal PI2; the terminal 2 of the amplifier U1 is connected to the above-mentioned electrical signal input terminal PI2; the terminal 3 of the amplifier U1 is connected to the electrical signal input terminal PI2 through the capacitor C2; the electrical signal input terminal PI2 is connected to the ground terminal GND.

3. The 4G / fiber integrated transmission concentrator communication device according to claim 2, characterized in that: A first terminal of the photoelectric conversion circuit is connected to the terminal 3 of the amplifier U1 , and a second terminal of the photoelectric conversion circuit is connected to the output circuit.

4. The 4G / fiber integrated transmission concentrator communication device according to claim 1, wherein: The output circuit includes a resistor 5 and a capacitor C3, the resistor R5 is connected between the output end of the photoelectric conversion circuit and the optical signal output end PO2; the capacitor C3 is connected between the output end of the photoelectric conversion circuit and the optical signal output end PO1; the optical signal output end PO2 is connected to the ground end GND.

5. The 4G / fiber integrated transmission concentrator communication device according to claim 1, wherein: The photoelectric conversion circuit includes a photosensitive diode VD1, a photosensitive diode VD2, a resistor R21, and a capacitor 21; the cathodes of the photosensitive diode VD1 and the photosensitive diode VD2 are respectively connected to the output end of the amplifier circuit; the anode of the photosensitive diode VD1 is connected to the capacitor 21, and the anode of the photosensitive diode VD2 is connected to the resistor R21.

6. The 4G / fiber integrated transmission concentrator communication device according to claim 1, characterized in that: The transmission unit includes an optical communication module, a buffer U1, a buffer U2 and an Ethernet control module; the signal sending end TD of the optical communication module is connected to the signal receiving end R of the Ethernet control module through the buffer U1; the signal receiving end RD of the optical communication module is connected to the signal sending end D of the Ethernet control module through the buffer U2.

7. The 4G / fiber integrated transmission concentrator communication device according to claim 1, characterized in that: The transmission unit also includes a control loop, which is used to control the transmission unit to receive or send information; the control loop includes a resistor R31, a resistor R32, a capacitor C31, a diode D1 and a power controller Q1; the resistor R31 and the capacitor C31 are connected in series and connected in reverse parallel to the diode D1 to form a parallel branch, one end of the parallel branch is connected to the power supply end, and the other end of the parallel branch is connected to the drain D of the power controller Q1; one end of the resistor R32 is connected to the output of the buffer U2, and the other end of the resistor R32 is connected to the gate of the power controller Q1; the source S of the power controller Q1 is connected to the ground end; the drain D of the power controller Q1 is connected to the signal control end / RE and the signal control end DE of the above-mentioned Ethernet control module.

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