Communication device and power monitoring device

Abstract

The utility model discloses a communication device and a power monitoring device, the communication device comprises a first communication module and a second communication module, and the first communication module is arranged at the home-entry side of a power grid; the first communication module comprises a first wired communication unit and a first wireless communication unit; the first wired communication unit is electrically connected with the power line; the second communication module is arranged on the user side of the power grid; the second communication module comprises a second wired communication unit and a second wireless communication unit; the second wired communication unit is also electrically connected with the power line; the second wired communication unit is used for transmitting a communication signal with the first wired communication unit through a power line; the second wireless communication unit is used for being in communication connection with the first wireless communication unit to transmit a communication signal; the present application can alleviate the problem that the current wireless communication signal is susceptible to interference or loss.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of grid-connected power generation technology, in particular to a communication device and a power monitoring device. BACKGROUND

[0002] At present, most of the anti-backflow devices on the market are wired communication such as RS485, RS232, CAN, network cable, etc., but the anti-backflow device is installed at the home side. If the device with grid-connected function, especially the household appliances with energy storage and grid-connected function, cannot be installed at the home side, wireless communication is needed to establish the communication connection between the household appliances and the home side. However, the wireless communication anti-backflow device such as Wifi and LoRa (Long Range Radio) cannot communicate or the communication is lost due to the interference of wireless signals in the environment such as wall.

[0003] Therefore, the current technology needs to be improved and enhanced. CONTENT OF THE INVENTION

[0004] The present application provides a communication device and a power monitoring device, which can alleviate the problem of interference or loss of wireless communication signals.

[0005] The present application provides a communication device, comprising:

[0006] A first communication module, the first communication module is arranged at the home side of the power grid; the first communication module comprises a first wired communication unit and a first wireless communication unit; the first wired communication unit is electrically connected with the power line;

[0007] A second communication module, the second communication module is arranged at the user side of the power grid; the second communication module comprises a second wired communication unit and a second wireless communication unit; the second wired communication unit is also electrically connected with the power line; the second wired communication unit is used for transmitting communication signals between the first wired communication unit through the power line; the second wireless communication unit is used for communication connection with the first wireless communication unit to transmit communication signals.

[0008] In some embodiments, the communication device further comprises:

[0009] A Hall sensor, the Hall sensor is electrically connected with the power line, and is used for sampling the current signal of the power line;

[0010] A metering chip, the metering chip is electrically connected with the Hall sensor, and is used for outputting current data according to the current signal;

[0011] A first main chip, the first main chip is electrically connected with the metering chip, the first wired communication unit and the first wireless communication unit respectively, and is used for outputting a monitoring signal according to the current data, and sending the monitoring signal through the first wired communication unit and / or the first wireless communication unit.

[0012] The communication device in some embodiments, the second communication module further comprises a second main chip, the second main chip is connected with the second wired communication unit and the second wireless communication unit respectively;

[0013] The second main chip is used for receiving the monitoring signal output by the first wired communication unit through the second wired communication unit, and / or receiving the monitoring signal sent by the first wireless communication unit through the second wireless communication unit.

[0014] The communication device in some embodiments, the first wired communication unit comprises a first power line carrier controller, the first power line carrier controller is connected with the first main chip and the power line, the first power line carrier controller is used for outputting the monitoring signal output by the first main chip to the second wired communication unit through the power line.

[0015] The communication device in some embodiments, the second wired communication unit comprises a second power line carrier controller, the second power line carrier controller is connected with the power line and the second main chip respectively, the second power line carrier controller is used for receiving the monitoring signal sent by the first power line carrier controller through the power line.

[0016] The communication device in some embodiments, the first wireless communication unit comprises a first LoRa radio frequency module and a first antenna, the first LoRa radio frequency module is connected with the first antenna and the first main chip respectively; the first LoRa radio frequency module is used for sending the monitoring signal output by the first main chip after processing through the first antenna.

[0017] The communication device in some embodiments, the second wireless communication unit comprises a second LoRa radio frequency module and a second antenna, the second LoRa radio frequency module is connected with the second antenna and the second main chip respectively; the second LoRa radio frequency module is used for receiving the monitoring signal sent by the first antenna through the second antenna.

[0018] The communication device in some embodiments, the first communication module further comprises a first auxiliary power supply and a first DC / DC converter, the first auxiliary power supply is connected with the first DC / DC converter, and is used for converting input alternating current into first direct current;

[0019] The first DC / DC converter is used for converting the first direct current into second direct current, and the first main chip, the Hall sensor, the metering chip, the first power line carrier controller and the first LoRa radio frequency module are powered.

[0020] The communication device in some embodiments, the second communication module further comprises a second auxiliary power supply and a second DC / DC converter, the second auxiliary power supply is connected with the second DC / DC converter, and is used for converting input alternating current into first direct current;

[0021] The second DC / DC converter is used for converting the first direct current into a second direct current to supply power for the second main chip, the second power line carrier controller and the second LoRa radio frequency module.

[0022] The application further provides an electric power monitoring device, comprising the communication device.

[0023] The application provides a communication device and an electric power monitoring device, wherein the communication device is provided with a wired communication unit and a wireless communication unit at the same time, realizes double-channel communication between the user side and the household side, ensures the reliability of communication between the household side and the user side, and alleviates the problem that the wireless communication signal is easily interfered or lost. BRIEF DESCRIPTION OF DRAWINGS

[0024] The technical scheme and other beneficial effects of the application will be apparent from the following detailed description of the specific embodiments of the application with reference to the drawings.

[0025] Figure 1 A structure block diagram of the first embodiment of the communication device provided by the application is provided.

[0026] Figure 2 A structure block diagram of the second embodiment of the communication device provided by the application is provided.

[0027] Figure 3 A structure block diagram of the third embodiment of the communication device provided by the application is provided. DETAILED DESCRIPTION

[0028] The technical scheme in the embodiments of the application will be described clearly and completely with reference to the drawings in the embodiments of the application. Obviously, the described embodiments are only part of the embodiments of the application, not all the embodiments. Based on the embodiments in the application, all other embodiments obtained by those skilled in the art without creative work fall within the scope of protection of the application.

[0029] In addition, the terms "first", "second" are only used for description purpose, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features, so that the features with "first" and "second" can explicitly or implicitly include one or more features, and in the description of the application, the meaning of "multiple" is two or more than two, unless otherwise specifically limited.

[0030] Please refer to Figure 1The embodiment provides a communication device, which comprises a first communication module 10 and a second communication module 20, the first communication module 10 is arranged at the household side of the power grid, and the second communication module 20 is arranged at the user side of the power grid; the first communication module 10 comprises a first wired communication unit 11 and a first wireless communication unit 12; the first wired communication unit 11 is electrically connected with the power line 30; the second communication module 20 comprises a second wired communication unit 21 and a second wireless communication unit 22; the second wired communication unit 21 is electrically connected with the power line 30; the second wired communication unit 21 is used for transmitting communication signals between the first wired communication unit 11 and the power line 30; and the second wireless communication unit 22 is used for being in communication connection with the first wireless communication unit 12 to transmit communication signals. In the embodiment, the wired communication unit and the wireless communication unit are arranged at the same time, double-channel communication between the user side and the household side is realized, the reliability of communication between the household side and the user side is ensured, and the problem that the wireless communication signal is easily interfered or lost at present is alleviated.

[0031] Please refer to Figure 2 In some embodiments, the first communication module 10 further comprises a Hall sensor 13, a metering chip 14 and a first main chip 15, the Hall sensor 13 is electrically connected with the power line 30, the metering chip 14 is electrically connected with the Hall sensor 13, and the first main chip 15 is electrically connected with the metering chip 14, the first wired communication unit 11 and the first wireless communication unit 12 respectively. The Hall sensor 13 is used for sampling the current signal of the power line 30, the metering chip 14 is used for acquiring the current signal output by the Hall sensor 13, processing the current signal and outputting current data to the first main chip 15, and the first main chip 15 is used for acquiring the size and phase of the current in the power line 30 according to the current data, so as to output a monitoring signal and send the monitoring signal to the second communication module 20 at the user side through the first wired communication unit 11 and / or the first wireless communication unit 12.

[0032] In some embodiments, the second communication module 20 further comprises a second main chip 23, the second main chip 23 is connected with the second wired communication unit 21 and the second wireless communication unit 22 respectively; the second main chip 23 is used for receiving the monitoring signal output by the first wired communication unit 11 through the second wired communication unit 21 and / or receiving the monitoring signal sent by the first wireless communication unit 12 through the second wireless communication unit 22, and the second main chip 23 is used for controlling the working state of the energy storage system or the inverter at the user side according to the received monitoring signal, so as to adjust the power supply of the power utilization equipment at the user side.

[0033] Please refer to Figure 3As an embodiment, the first wired communication unit 11 comprises a first power line carrier controller 111, which is connected with the first main chip 15 and the power line 30, and is configured to output the monitoring signal output by the first main chip 15 to the second wired communication unit 21 through the power line 30. In this embodiment, the wired transmission of the communication signal is realized by setting the first power line carrier controller 111, thereby ensuring the reliability of the communication signal transmission.

[0034] As an embodiment, the second wired communication unit 21 comprises a second power line carrier controller 211, which is connected with the power line 30 and the second main chip 23 respectively, and is configured to receive the monitoring signal sent by the first power line carrier controller 111 through the power line 30. In this embodiment, the wired communication channel is established between the second power line carrier controller 211 and the power line 30 and the first power line carrier controller 111, thereby ensuring the reliability of the communication between the user side and the household side.

[0035] As an embodiment, the first wireless communication unit 12 comprises a first LoRa radio frequency module 121 and a first antenna 122, and the first LoRa radio frequency module 121 is connected with the first antenna 122 and the first main chip 15 respectively; the first LoRa radio frequency module 121 is configured to send the monitoring signal output by the first main chip 15 after processing through the first antenna 122; the second wireless communication unit 22 comprises a second LoRa radio frequency module 221 and a second antenna 222, and the second LoRa radio frequency module 221 is connected with the second antenna 222 and the second main chip 23 respectively; the second LoRa radio frequency module 221 is configured to receive the monitoring signal sent by the first antenna 122 through the second antenna 222. The received monitoring signal is processed by the second LoRa radio frequency module and output to the second main chip 23, and the working state of the energy storage system or the inverter of the user side is controlled by the second main chip 23 according to the monitoring signal.

[0036] In some embodiments, the first communication module 10 further comprises a first auxiliary power supply 16 and a first DC / DC converter 17, the first auxiliary power supply 16 is connected with the first DC / DC converter 17, and is configured to convert the input alternating current into first direct current; the first DC / DC converter 17 is configured to convert the first direct current into second direct current, and supply power to the first main chip 15, the Hall sensor 13, the metering chip 14, the first power line carrier controller 111 and the first LoRa radio frequency module 121. For example, the first DC / DC converter 17 receives 12V direct current, and outputs 5V or 3.3V electrical energy after conversion to supply power to other parts in the first communication module 10, thereby ensuring the normal work of the first communication module 10.

[0037] In some embodiments, the second communication module 20 further comprises a second auxiliary power supply 24 and a second DC / DC converter 25, the second auxiliary power supply 24 is connected with the second DC / DC converter 25 for converting input alternating current into first direct current; the second DC / DC converter 25 is used for converting the first direct current into second direct current for powering the second main chip 23, the second power line carrier controller 211 and the second LoRa radio frequency module 221. For example, the second DC / DC converter 25 receives 12V direct current, and converts the 12V direct current into 5V or 3.3V electric energy for powering other parts in the second communication module 20, so as to ensure normal work of the second communication module 20.

[0038] In some embodiments, the first communication module 10 further comprises a first RS-485 interface, the first RS-485 interface is connected with the first main chip 15, the first main chip 15 can burn software and update software through the first RS-485 interface, or perform wired communication through the interface, etc. Similarly, the second communication module 20 further comprises a second RS-485 interface, the second RS-485 interface is connected with the second main chip 23, the second main chip 23 can burn software and update software through the second RS-485 interface, or perform wired communication through the interface, etc. As an embodiment, the RS-485 interface can also be replaced by CAN bus for wired transmission.

[0039] As an embodiment, the first communication module 10 further comprises a first display 18, and the second communication module 20 further comprises a second display 26, the first display 18 is connected with the first main chip 15, and the second display 26 is connected with the second main chip 23, the first display 18 can be used for displaying communication signals and power supply states acquired by the first main chip 15; similarly, the second display 26 can be used for displaying communication signals and power supply states acquired by the second main chip 23, so that the user side and the household side can intuitively understand the communication signals and the power supply states.

[0040] As an embodiment, the first main chip 15 and the second main chip 23 both comprise a single-chip microcomputer MCU or a digital signal processing chip DSP.

[0041] The application further provides a power monitoring device, the power monitoring device comprising the communication device described above. In the application, wired communication and wireless communication double-channel communication are arranged in the power monitoring device, which is beneficial to improving the reliability of communication. Since the communication device is described in detail above, the description is not repeated here.

[0042] In the above embodiments, the description of each embodiment has its own emphasis, and the parts not described in detail in a certain embodiment can be referred to the related description of other embodiments.

[0043] The communication device provided by the embodiments of the present application is described in detail above, and the principle and implementation manner of the present application are described by applying specific examples. The above embodiment description is only used to help understand the technical solutions of the present application and the core idea thereof. It should be understood by those skilled in the art that the technical solutions recorded in the foregoing embodiments can be modified, or some technical features thereof can be replaced by equivalents, and the modification or replacement does not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present application.

Claims

1. A communication device, characterized by The utility model relates to a kind of communication module and communication method, including: First communication module, the first communication module is arranged in the household side of power grid;The first communication module includes first wired communication unit and first wireless communication unit; The first wired communication unit is electrically connected with power line; Second communication module, the second communication module is arranged in the user side of the power grid;The second communication module includes second wired communication unit and second wireless communication unit;The second wired communication unit is also electrically connected with the power line;The second wired communication unit is used to transmit communication signal between the power line and the first wired communication unit;The second wireless communication unit is used to communicate with the first wireless communication unit to transmit the communication signal.

2. The communication apparatus according to claim 1, wherein The first communication module further includes: Hall sensor, the Hall sensor is electrically connected with the power line, for sampling the current signal of the power line; Metering chip, the metering chip is electrically connected with the Hall sensor, for outputting current data according to the current signal; First main chip, the first main chip is electrically connected with the metering chip, the first wired communication unit and the first wireless communication unit respectively, and the first main chip is used to output monitoring signal according to the current data, and sends the monitoring signal by the first wired communication unit and / or the first wireless communication unit.

3. The communication apparatus according to claim 2, wherein The second communication module further includes second main chip, and the second main chip is connected with the second wired communication unit and the second wireless communication unit respectively; The second main chip is used to receive the monitoring signal output by the first wired communication unit through the second wired communication unit, and / or receive the monitoring signal sent by the first wireless communication unit through the second wireless communication unit.

4. The communication apparatus according to claim 3, wherein The first wired communication unit includes first power line carrier controller, and the first power line carrier controller is connected with the first main chip and the power line, and the first power line carrier controller is used to output the monitoring signal output by the first main chip to the second wired communication unit through the power line.

5. The communication apparatus according to claim 4, wherein The second wired communication unit includes second power line carrier controller, and the second power line carrier controller is connected with the power line and the second main chip respectively, and the second power line carrier controller is used to receive the monitoring signal sent by the first power line carrier controller through the power line.

6. The communication apparatus according to claim 5, wherein The first wireless communication unit includes first LoRa radio frequency module and first antenna, and the first LoRa radio frequency module is connected with the first antenna and the first main chip respectively;The first LoRa radio frequency module is used to send the monitoring signal output by the first main chip through the first antenna after processing.

7. The communication apparatus according to claim 6, wherein The second wireless communication unit includes second LoRa radio frequency module and second antenna, and the second LoRa radio frequency module is connected with the second antenna and the second main chip respectively;The second LoRa radio frequency module is used to receive the monitoring signal sent by the first antenna through the second antenna.

8. The communication apparatus according to claim 6, wherein The first communication module further comprises a first auxiliary power supply and a first DC / DC converter, the first auxiliary power supply being connected with the first DC / DC converter, for converting input alternating current into first direct current; The first DC / DC converter is used for converting the first direct current into second direct current, for powering the first main chip, the Hall sensor, the metering chip, the first power line carrier controller and the first LoRa radio frequency module.

9. The communication apparatus according to claim 7, wherein The second communication module further comprises a second auxiliary power supply and a second DC / DC converter, the second auxiliary power supply being connected with the second DC / DC converter, for converting input alternating current into first direct current; The second DC / DC converter is used for converting the first direct current into second direct current, for powering the second main chip, the second power line carrier controller and the second LoRa radio frequency module.

10. An electrical power monitoring device, characterized by A communication device as claimed in any one of claims 1-9.

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