Solar communication gateway, communication system and power supply mode switching method

Abstract

The invention discloses a solar communication gateway, a communication system and a power supply mode switching method, and the solar communication gateway is used for being connected in series between a power grid and a distribution box. Comprising a first intelligent electric meter with a built-in first power supply relay, a second intelligent electric meter with a built-in second power supply relay, and a communication concentrator used for being wirelessly connected with a cloud server or a mobile terminal. The communication concentrator is respectively in wired connection with the first intelligent electric meter and the second intelligent electric meter, and the first intelligent electric meter and the second intelligent electric meter are connected and jointly connected in series between a power grid and a distribution box; the second intelligent electric meter is used for connecting a solar inverter; a user can conveniently use different green energy devices and adjust the power generation or consumption mode to achieve zero carbon emission, the power supply mode can also be switched into the mode that redundant solar power generation is used for power supply or electricity selling, then the vehicle is driven by electric power or a storage battery is used for power supply, redundant solar energy can be fully utilized, and the energy-saving and environment-friendly effects are achieved. And the flexibility of the power supply mode is greatly improved.

Description

Technical Field

[0001] The present invention relates to the field of solar energy communication gateway technology, and in particular to a solar energy communication gateway, a communication system and a power supply mode switching method. Background Art

[0002] With the continuous advancement of computer technology and information and communication technology, communication has developed from people-to-people communication to people-to-things and things-to-things communication, and tends to transition from local object-to-object connection to horizontal cross-application and cross-regional Internet of Things.

[0003] The intelligent solar communication gateway connects devices or sensors in a small range to the Internet through nodes, realizing protocol conversion between different types of network devices. It can not only realize wide area network interconnection, but also has device management functions, manages the relevant information of each node through the network, and realizes remote control.

[0004] As an important communication device within the network area, different work site conditions will produce different situations.

[0005] The existing solar communication gateway cannot automatically change the settings of solar power generation and energy storage equipment according to the power consumption, which leads to the inability to better manage the use of green energy equipment and causes waste.

[0006] Therefore, in the present invention, the applicant has carefully studied a solar communication gateway, a communication system and a power supply mode switching method to solve the above problems. Summary of the invention

[0007] In view of the deficiencies in the above-mentioned prior art, the present invention mainly aims to provide a solar communication gateway, a communication system and a power supply mode switching method, which facilitates users to use different green energy equipment and adjust power generation, energy storage or consumption methods to achieve zero carbon emissions. The power supply mode can also be switched to first power supply or sell electricity through excess solar power generation, and then power supply through electric-driven vehicles or batteries, which is conducive to making full use of excess solar energy and greatly improving the flexibility of the power supply mode.

[0008] To achieve the above-mentioned purpose, the present invention adopts the following technical scheme:

[0009] A solar communication gateway, which is used to be connected in series between a power grid and a distribution box, comprises a first smart meter with a first power relay built in, a second smart meter with a second power relay built in, and a communication hub for wirelessly connecting to a cloud server or a mobile terminal;

[0010] The communication hub is respectively connected to the first smart meter and the second smart meter by wire, and the first smart meter and the second smart meter are connected and connected in series between the power grid and the distribution box;

[0011] The first smart meter is used to connect to the power grid;

[0012] The second smart electric meter is used to connect the distribution box, the solar inverter, the battery and the carbon dioxide heat pump water heater.

[0013] As a preferred solution, it also includes a third smart meter with a built-in third power relay for connecting to the electric drive vehicle, and the third smart meter is connected to the communication hub.

[0014] As a preferred solution, at least one of the first smart meter, the second smart meter and the third smart meter is a rail-type smart meter.

[0015] As a preferred solution, the communication hub is connected to an artificial intelligence AI learning chip.

[0016] As a preferred solution, a memory is also included, and the memory is connected to the communication hub.

[0017] As a preferred solution, it further comprises a shell, and the communication hub, the first smart meter and the second smart meter are all installed on the shell.

[0018] A communication system includes a cloud server, a mobile terminal, a solar inverter, a power grid, a distribution box and a gateway, wherein the gateway is the solar communication gateway.

[0019] As a preferred solution, an electric vehicle is also included, and the cloud server or communication hub is wired to the electric vehicle to directly manage the charging or discharging of the electric vehicle.

[0020] A power supply mode switching method is applied to the communication system, wherein the solar communication gateway further includes a third smart meter with a third power supply relay built in, the communication hub is connected to the third smart meter, and the third smart meter is connected to an electric drive vehicle for supplying power to a distribution box;

[0021] The power supply mode switching method comprises the following steps:

[0022] Step 1, firstly, controlling the solar inverter, the storage battery, or the electric drive vehicle through the communication hub to simultaneously perform a preset operation, that is, the first power relay of the first smart meter is turned off, the second power relay of the second smart meter is turned off, and the third power relay of the third smart meter is turned off;

[0023] Next, determine whether the solar communication gateway and the cloud server are connected, if yes, execute step 2, if no, execute step 10;

[0024] Step 2, the solar communication gateway itself can directly report the integrated and analyzed energy data in the first smart meter, the second smart meter and the third smart meter to the cloud server, and then execute step 3;

[0025] Step 3, the power distribution box is powered by the power supply of the power grid, and at the same time, the battery or the electric drive vehicle is charged through the communication hub, and then step 4 is executed;

[0026] Step 4, determining whether the solar power generation energy is much greater than the energy consumption of the house, if yes, executing step 5, if no, controlling the first power relay of the first smart meter to remain in a closed state through the communication hub, and continuing to be powered by the power supply of the grid;

[0027] Step 5, first control the first power relay of the first smart meter to open through the communication hub, disconnect the power connection with the power grid, and then charge the battery or the carbon dioxide heat pump water heater through the communication hub through the solar power generation energy; when the battery or the carbon dioxide heat pump water heater reaches full capacity, determine whether the solar power generation energy is less than the energy consumption of the house, if so, execute step 2, otherwise, execute step 6;

[0028] Step 6, controlling the third power relay of the third smart meter to remain in a closed state through the communication hub, so as to realize charging the electric vehicle with solar energy;

[0029] Step 7, if the electric vehicle has reached full capacity or the solar power generation energy is less than the energy consumption of the house, then stop charging the electric vehicle, otherwise, until the electric vehicle reaches full capacity;

[0030] Step 8, determine whether the solar power generation energy is still greater than the energy consumption of the house, if yes, execute step 9, if not, jump to step 3;

[0031] Step 9, choose whether to output the solar power generation energy to the grid or continue to use it only for the energy consumption of the house. If the solar power generation energy is output to the grid, the first power relay of the first smart meter is controlled to be closed through the communication hub, and then the solar power generation energy is output through the grid to sell electricity; if it is chosen to continue to be used only for the energy consumption of the house, the third power relay of the third smart meter is controlled to be opened through the communication hub, and then the output power of the solar inverter is adjusted through the communication hub to cooperate with the distribution box to supply power to various household devices in the house, until the solar power generation energy is insufficient to supply power to various household devices in the house, and then step 10 is executed;

[0032] Step 10, the communication hub controls the battery or controls the third power relay of the third smart meter to be turned off, so that the electric vehicle can supply power to various household devices in the house until the battery or the electric vehicle is insufficient to supply power to the house devices, and then, step 1 is executed;

[0033] Step 11, first wirelessly connect the solar energy communication gateway to the mobile terminal through the short-range communication module, then wirelessly connect the mobile terminal to the cloud server, and then realize the wireless connection between the solar energy communication gateway and the cloud server. The solar energy communication gateway reports the integrated and analyzed energy data in the first smart meter, the second smart meter and the third smart meter to the cloud server through the mobile terminal, and jumps to execute step 3.

[0034] Compared with the prior art, the present invention has obvious advantages and beneficial effects. Specifically, it mainly forms a solar communication gateway through the first smart meter, the second smart meter and the communication hub, which is convenient for users to use different green energy equipment and adjust the power generation, energy storage or consumption methods to achieve zero carbon emissions. In particular, the power supply method can be switched to first supply power or sell electricity with excess solar power generation, and then supply power through electric-driven vehicles or batteries, which is conducive to making full use of excess solar energy and greatly improving the flexibility of the power supply method.

[0035] Secondly, by setting up a third smart meter, electric vehicles can be managed together, the overall energy utilization efficiency can be increased, and electric vehicles can be used to provide emergency power. Through the communication hub, the first smart meter, the second smart meter and the third smart meter are all installed on the shell, with a high degree of integration, which is convenient for subsequent laying.

[0036] In order to more clearly illustrate the structural features, technical means and specific purposes and functions achieved by the present invention, the present invention is further described in detail below in conjunction with the accompanying drawings and specific embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0037] Figure 1 It is a schematic diagram of the general structure of a solar communication gateway according to an embodiment of the present invention;

[0038] Figure 2 This is a schematic diagram of the control principle of the solar communication gateway according to an embodiment of the present invention;

[0039] Figure 3 It is a flow chart of a power supply mode switching method according to an embodiment of the present invention.

[0040] Description of Figure Numbers:

[0041] 11. First smart meter 12. Second smart meter

[0042] 13. Third smart meter 14. Communication hub

[0043] 15. Shell

[0044] 21. Cloud server 22. Mobile terminal. DETAILED DESCRIPTION

[0045] The present invention is further described below in conjunction with the accompanying drawings and specific embodiments.

[0046] like Figures 1 to 3 As shown, a solar communication gateway is used to be connected in series between a power grid and a distribution box, including a housing, a memory, a first smart meter 11 with a first power relay built in, a second smart meter 12 with a second power relay built in, a third smart meter 13 for connecting to an electric vehicle and with a third power relay built in, and a communication hub 14 for wirelessly connecting to a cloud server 21 or a mobile terminal 22;

[0047] The communication hub 14, the first smart meter 11, the second smart meter 12 and the third smart meter 13 are all mounted on a housing 15. The communication hub 14 is wiredly connected to the memory, the first smart meter 11, the second smart meter 12 and the third smart meter 13.

[0048] In this embodiment, the communication hub 14 includes an MCU, an external communication interface module and a power management module for power supply respectively connected to the MCU. The MCU is respectively connected to the memory, the first smart meter 11, the second smart meter 12 and the third smart meter 13 by wire.

[0049] The external communication interface module includes at least two communication modules, one of which is a long-distance communication module (such as 4G, 5G, 5GA, etc.), which is mainly used to communicate with the cloud server 21; the other is a short-range communication module (such as Wi-Fi, Wi-Sun, Bluetooth, etc.) to communicate with various energy sources, household appliances (such as utility smart meters, batteries, carbon dioxide heat pump water heaters, etc.) or mobile terminals.

[0050] In addition to wireless communication channels, the external communication interface module can also be connected with wired LAN, RS485 and PLC to directly handle different energy devices such as solar inverters, charging / discharging equipment for electric drive vehicles, network routers and electric drive vehicles.

[0051] The first smart meter and the second smart meter 12 are connected in series between the power grid and the distribution box. The distribution box is used to supply power to household devices.

[0052] The first smart meter is used to connect to the power grid; in this embodiment, the cloud server 21 can remotely disconnect the first smart meter 11 from the power grid to reduce current fluctuations or solve safety issues during maintenance. In addition, if the solar communication gateway of this embodiment detects that energy is flowing from the first smart meter 11 to the power grid, the solar communication gateway of this embodiment can automatically disconnect from the power grid. This can prevent energy (such as solar power generation or electric-powered vehicles) from being exported to the power grid, ensuring that all green energy is used exclusively for household appliances and corresponding applications.

[0053] The second smart electric meter 12 is used to connect a distribution box, a solar inverter, a battery and a carbon dioxide heat pump water heater.

[0054] The second smart meter 12 can measure the solar power generation in real time and report it to the cloud server 21 through the communication hub 14. This allows the cloud server 21 to remotely adjust the power of the solar inverter and manage the battery and the CO2 heat pump water heater. The energy generated by the solar panels during the day can be stored in the battery and / or the CO2 heat pump water heater, and then released at night to power household appliances, thereby maximizing the efficiency of the energy generated by the solar energy and reducing the demand on the power grid.

[0055] At least one of the first smart meter, the second smart meter and the third smart meter is a rail-type smart meter. In this embodiment, the first smart meter 11, the second smart meter 12 and the third smart meter are all rail-type smart meters.

[0056] The third smart meter 13 is connected to the communication hub 14 .

[0057] The third smart meter 13 is used to measure the energy flow between the charger / discharger of the electric vehicle and the system. It can use its internal third power relay to switch the power connection of the electric vehicle equipment. As more and more electric vehicles can charge or output energy to the power grid like a giant battery, the third smart meter 13 can measure electrical energy and remotely control the electric vehicle energy for household appliances or emergency applications. A wired cable (such as LAN, PLC, RS485, etc.) connects the solar communication gateway of this embodiment to the electric vehicle equipment or electric vehicle. Therefore, the cloud server 21 can communicate directly with the electric vehicle or V2H device, manage the electric vehicle and solar power generation operations, and collect data through the new communication center.

[0058] The communication hub 14 is connected to an artificial intelligence AI learning chip. Through the artificial intelligence AI learning chip, machine learning can be performed when analyzing energy data. The MCU will reserve a special program area, and the AI ​​learning model can be continuously updated from the cloud server 21 through MCU OTA.

[0059] A communication system includes a cloud server 21, a mobile terminal 22, a solar inverter, a power grid, a distribution box, a gateway, an electric vehicle, a battery and a carbon dioxide heat pump water heater, wherein the gateway is the solar communication gateway.

[0060] The first smart meter is connected to the power grid. The second smart meter 12 is connected to the distribution box, the solar inverter, the battery and the carbon dioxide heat pump water heater.

[0061] The cloud server 21 or the communication hub is wired to the electric vehicle to directly manage the charging or discharging of the electric vehicle.

[0062] A power supply mode switching method is applied to a communication system. It should be noted that:

[0063] An electric drive vehicle, also known as an EV, refers to a vehicle that is propelled by an electric motor and has a local means for storing electricity to power the electric motor, which can be used to power a home.

[0064] The power supply mode switching method comprises the following steps:

[0065] Step 1, firstly, controlling the solar inverter, the storage battery, or the electric drive vehicle through the communication hub to simultaneously perform a preset operation, that is, the first power relay of the first smart meter is turned off, the second power relay of the second smart meter is turned off, and the third power relay of the third smart meter is turned off;

[0066] Next, determine whether the solar communication gateway and the cloud server are connected, if yes, execute step 2, if no, execute step 10;

[0067] Step 2, the solar communication gateway itself can directly report the integrated and analyzed energy data in the first smart meter, the second smart meter and the third smart meter to the cloud server, and then execute step 3;

[0068] Step 3, the power distribution box is powered by the power supply of the power grid, and at the same time, the battery or the electric drive vehicle is charged through the communication hub, and then step 4 is executed;

[0069] Step 4, determining whether the solar power generation energy is much greater than the energy consumption of the house, if yes, executing step 5, if no, controlling the first power relay of the first smart meter to remain in a closed state through the communication hub, and continuing to be powered by the power supply of the grid;

[0070] Step 5, first control the first power relay of the first smart meter to open through the communication hub, disconnect the power connection with the power grid, and then charge the battery or the carbon dioxide heat pump water heater through the communication hub through the solar power generation energy; when the battery or the carbon dioxide heat pump water heater reaches full capacity, determine whether the solar power generation energy is less than the energy consumption of the house, if so, execute step 2, otherwise, execute step 6;

[0071] Step 6, controlling the third power relay of the third smart meter to remain in a closed state through the communication hub, so as to realize charging the electric vehicle with solar energy;

[0072] Step 7, if the electric vehicle has reached full capacity or the solar power generation energy is less than the energy consumption of the house, then stop charging the electric vehicle, otherwise, until the electric vehicle reaches full capacity;

[0073] Step 8, determine whether the solar power generation energy is still greater than the energy consumption of the house, if yes, execute step 9, if not, jump to step 3;

[0074] Step 9, choose whether to output the solar power generation energy to the grid or continue to use it only for the energy consumption of the house. If the solar power generation energy is output to the grid, the first power relay of the first smart meter is controlled to be closed through the communication hub, and then the solar power generation energy is output through the grid to sell electricity; if it is chosen to continue to be used only for the energy consumption of the house, the third power relay of the third smart meter is controlled to be opened through the communication hub, and then the output power of the solar inverter is adjusted through the communication hub to cooperate with the distribution box to supply power to various household devices in the house, until the solar power generation energy is insufficient to supply power to various household devices in the house, and then step 10 is executed;

[0075] Step 10, the communication hub controls the battery or controls the third power relay of the third smart meter to be turned off, so that the electric vehicle can supply power to various household devices in the house until the battery or the electric vehicle is insufficient to supply power to the house devices, and then, step 1 is executed;

[0076] Step 11, first wirelessly connect the solar energy communication gateway to the mobile terminal through the short-range communication module, then wirelessly connect the mobile terminal to the cloud server, and then realize the wireless connection between the solar energy communication gateway and the cloud server. The solar energy communication gateway reports the integrated and analyzed energy data in the first smart meter, the second smart meter and the third smart meter to the cloud server through the mobile terminal, and jumps to execute step 3.

[0077] In summary, it mainly forms a solar communication gateway through the first smart meter, the second smart meter and the communication hub, which is convenient for users to use different green energy equipment and adjust power generation, energy storage or consumption methods to achieve zero carbon emissions. In particular, the power supply method can be switched to first supply power or sell electricity with excess solar power generation, and then supply power through electric-powered vehicles or batteries, which is conducive to making full use of excess solar energy and greatly improving the flexibility of power supply methods.

[0078] Secondly, by setting up a third smart meter, electric vehicles can be managed together, the overall energy utilization efficiency can be increased, and electric vehicles can be used to provide emergency power. Through the communication hub, the first smart meter, the second smart meter and the third smart meter are all installed on the shell, with a high degree of integration, which is convenient for subsequent laying.

[0079] The above description is only a preferred embodiment of the present invention and does not limit the technical scope of the present invention. Therefore, any slight modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention are still within the scope of the technical solution of the present invention.

Claims

1. A solar communication gateway, characterized in that: It is used to be connected in series between the power grid and the distribution box, and includes a first smart meter with a first power relay built in, a second smart meter with a second power relay built in, and a communication hub for wirelessly connecting to a cloud server or a mobile terminal; The communication hub is respectively connected to the first smart meter and the second smart meter by wire, and the first smart meter and the second smart meter are connected and connected in series between the power grid and the distribution box; The first smart meter is used to connect to the power grid; The second smart electric meter is used to connect the distribution box, the solar inverter, the battery and the carbon dioxide heat pump water heater.

2. The solar communication gateway according to claim 1, characterized in that: The device also includes a third smart meter with a built-in third power relay for connecting to an electric vehicle, wherein the third smart meter is connected to the communication hub.

3. The solar communication gateway according to claim 2, characterized in that: At least one of the first smart meter, the second smart meter and the third smart meter is a rail-type smart meter.

4. The solar communication gateway according to claim 1, characterized in that: The communication hub is connected to an artificial intelligence AI learning chip.

5. The solar communication gateway according to claim 1, characterized in that: The device also includes a memory connected to the communication hub.

6. The solar communication gateway according to claim 1, characterized in that: It also includes a shell, and the communication hub, the first smart meter and the second smart meter are all installed on the shell.

7. A communication system, characterized in that: It includes a cloud server, a mobile terminal, a solar inverter, a power grid, a distribution box and a gateway, and the gateway is the solar communication gateway described in any one of claims 1 to 6.

8. The communication system according to claim 5, characterized in that: Also included is an electric vehicle, wherein the cloud server or communication hub is wired to the electric vehicle to directly manage charging or discharging of the electric vehicle.

9. A method for switching a power supply mode, characterized in that: It is applied to the communication system of claim 7 or 8, the solar communication gateway further includes a third smart meter with a built-in third power relay, the communication hub is connected to the third smart meter, and the third smart meter is connected to an electric vehicle for supplying power to the distribution box; The power supply mode switching method comprises the following steps: Step 1, firstly, controlling the solar inverter, the storage battery, or the electric drive vehicle through the communication hub to simultaneously perform a preset operation, that is, the first power relay of the first smart meter is turned off, the second power relay of the second smart meter is turned off, and the third power relay of the third smart meter is turned off; Next, determine whether the solar communication gateway and the cloud server are connected, if yes, execute step 2, if no, execute step 11; Step 2, the solar communication gateway itself can directly report the integrated and analyzed energy data in the first smart meter, the second smart meter and the third smart meter to the cloud server, and then execute step 3; Step 3, the power distribution box is powered by the power supply of the power grid, and at the same time, the battery or the electric drive vehicle is charged through the communication hub, and then step 4 is executed; Step 4, determining whether the solar power generation energy is much greater than the energy consumption of the house, if yes, executing step 5, if no, controlling the first power relay of the first smart meter to remain in a closed state through the communication hub, and continuing to be powered by the power supply of the grid; Step 5, first control the first power relay of the first smart meter to open through the communication hub, disconnect the power connection with the power grid, and then charge the battery or the carbon dioxide heat pump water heater through the communication hub through the solar power generation energy; when the battery or the carbon dioxide heat pump water heater reaches full capacity, determine whether the solar power generation energy is less than the energy consumption of the house, if so, execute step 2, otherwise, execute step 6; Step 6, controlling the third power relay of the third smart meter to remain in a closed state through the communication hub, so as to realize charging the electric vehicle with solar energy; Step 7, if the electric vehicle has reached full capacity or the solar power generation energy is less than the energy consumption of the house, then stop charging the electric vehicle, otherwise, until the electric vehicle reaches full capacity; Step 8, determine whether the solar power generation energy is still greater than the energy consumption of the house, if yes, execute step 9, if not, jump to step 3; Step 9, choose whether to output the solar power generation energy to the grid or continue to use it only for the energy consumption of the house. If the solar power generation energy is output to the grid, the first power relay of the first smart meter is controlled to be closed through the communication hub, and then the solar power generation energy is output through the grid to sell electricity; if it is chosen to continue to be used only for the energy consumption of the house, the third power relay of the third smart meter is controlled to be opened through the communication hub, and then the output power of the solar inverter is adjusted through the communication hub to cooperate with the distribution box to supply power to various household devices in the house, until the solar power generation energy is insufficient to supply power to various household devices in the house, and then step 10 is executed; Step 10, the communication hub controls the battery or controls the third power relay of the third smart meter to be turned off, so that the electric vehicle can supply power to various household devices in the house until the battery or the electric vehicle is insufficient to supply power to the house devices, and then, step 1 is executed; Step 11, first wirelessly connect the solar energy communication gateway to the mobile terminal through the short-range communication module, then wirelessly connect the mobile terminal to the cloud server, and then realize the wireless connection between the solar energy communication gateway and the cloud server. The solar energy communication gateway reports the integrated and analyzed energy data in the first smart meter, the second smart meter and the third smart meter to the cloud server through the mobile terminal, and jumps to execute step 3.

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