Three-phase dual-mode intelligent electric energy meter

Abstract

The utility model relates to the field of intelligent electric energy meters, in particular to a three-phase dual-mode intelligent electric energy meter, which comprises a microcontroller, and further comprises an infrared communication module, a LoRa communication module, an inverter, a monitoring module, a metering module and a code scanning device which are electrically connected with the microcontroller, the code scanning device comprises a light supplementing lamp and a scanning structure which are electrically connected with the microcontroller, comprehensive monitoring of electric energy can be achieved, data support is provided for formulating an energy management strategy, and the energy utilization rate can be effectively improved.

Description

Technical Field

[0001] The utility model relates to the technical field of intelligent electric energy meters, in particular to a three-phase dual-mode intelligent electric energy meter. Background Art

[0002] In the context of the development of smart grid and Internet of Things technology, the communication method of electric energy meters is crucial for data collection and transmission. Traditional electric energy meters only support local display or obtain data through manual meter reading, while modern smart electric energy meters can transmit data remotely and realize automatic management of electric energy data.

[0003] The three-phase dual-mode smart energy meter supports two communication modes. You can select the appropriate communication mode according to actual needs and environmental conditions to achieve remote data collection and transmission. However, in some areas or devices, due to technical limitations, remote meter reading cannot be fully realized, and on-site meter reading is required as a supplement to ensure the accuracy and completeness of the data.

[0004] With the development of distributed photovoltaic systems connected to the grid, smart electricity meters are required to accurately measure the electricity generated by the photovoltaic system while achieving accurate meter reading, and monitor the electricity transmitted by the photovoltaic system to the grid and the electricity obtained from the grid, so that power suppliers and users can understand the amount of electricity generated by the photovoltaic system, which is convenient for billing and compensation. Utility Model Content

[0005] The utility model provides a three-phase dual-mode intelligent electric energy meter.

[0006] The technical solution of this utility model is as follows:

[0007] A three-phase dual-mode intelligent electric energy meter includes a microcontroller, and is characterized in that it also includes an infrared communication module, a LoRa communication module, an inverter, a monitoring module, a metering module and a code scanning device, all of which are electrically connected to the microcontroller.

[0008] The monitoring module includes a current transformer and a voltage transformer.

[0009] The code scanning device comprises a fill light and a scanning structure both electrically connected to the microcontroller, and the scanning structure is a scanning camera.

[0010] Specifically, the metering module includes a metering chip and an ADC analog-to-digital converter, both of which are electrically connected to a microcontroller.

[0011] Furthermore, it also includes a display module and a data storage module both electrically connected to the microcontroller.

[0012] Preferably, the display module is an LCD liquid crystal display screen.

[0013] Preferably, the storage module is a RAM random access memory.

[0014] Specifically, the current transformer is an analog output type electronic current transformer.

[0015] Specifically, the voltage transformer is an electromagnetic voltage transformer.

[0016] Preferably, the inverter is a three-phase inverter.

[0017] Furthermore, the infrared communication module includes an infrared emitting diode and an infrared receiving diode.

[0018] The beneficial effects of the utility model are:

[0019] (1) The utility model is a three-phase dual-mode smart energy meter. The inverter electrically connected to the microcontroller can transmit the power generation information of the distributed photovoltaic system to the three-phase dual-mode smart energy meter in real time. The monitoring module electrically connected to the microcontroller can also obtain the power information of the external power grid in real time, realize comprehensive monitoring of power, provide data support for the formulation of energy management strategies, and effectively improve energy utilization.

[0020] (2) A code scanning device is provided on the basis of the infrared communication module and the LoRa communication module, which can authenticate the identity of the meter reader and ensure the security and accuracy of the meter reading process. It is suitable for various meter reading scenarios, especially those that require a combination of remote meter reading and on-site meter reading. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] By reading the detailed description of the preferred embodiment below, the scheme and advantages of the present application will become clear to those skilled in the art. The accompanying drawings are only used to illustrate the preferred embodiment and are not considered to be limiting of the present invention.

[0022] In the attached picture:

[0023] Figure 1 Schematic diagram of the system structure of a three-phase dual-mode smart electric energy meter in an embodiment. DETAILED DESCRIPTION

[0024] Exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings.

[0025] Example

[0026] This embodiment provides a three-phase dual-mode smart energy meter. Figure 1 , including a microcontroller, characterized in that it also includes an infrared communication module, a LoRa communication module, an inverter, a monitoring module, a metering module and a code scanning device, all of which are electrically connected to the microcontroller,

[0027] The monitoring module includes a current transformer and a voltage transformer.

[0028] The code scanning device comprises a fill light and a scanning structure both electrically connected to the microcontroller, and the scanning structure is a scanning camera.

[0029] Specifically, in the utility model, the microprocessor is responsible for coordinating and controlling each module, receiving data from the metering module, monitoring module, infrared communication module, LoRa communication module, code scanning device, and inverter, and sending control instructions to each module and device.

[0030] The power module is used to provide stable electric energy for the three-phase dual-mode intelligent electric energy meter, and in this embodiment, it is a lead-acid battery.

[0031] The infrared communication module is used for short-range point-to-point communication between the three-phase dual-mode smart energy meter and other devices. It can read the meter and set parameters for the three-phase dual-mode smart energy meter. The infrared communication module includes an infrared emitting diode and an infrared receiving diode. When data needs to be transmitted with other infrared devices, the infrared emitting diode sends infrared light pulse signals under the instruction of the microcontroller. These infrared light pulse signals include information on the energy consumption and power of the three-phase dual-mode smart energy meter; the infrared receiving diode is responsible for receiving infrared light pulse signals from other external devices and transmitting the received signals to the microcontroller.

[0032] The LoRa communication module is used for long-distance wireless communication, remote data transmission and monitoring of the three-phase dual-mode smart energy meter. In this embodiment, the LoRa communication module uses the SX1262 radio frequency chip, which is responsible for controlling the sending and receiving of LoRa signals.

[0033] In this embodiment, the inverter is used to convert the direct current generated by the distributed photovoltaic system into alternating current, so that the three-phase dual-mode smart energy meter can monitor the data information of the amount of electricity, power, voltage and current generated by the distributed photovoltaic system in real time, and provide accurate data support for optimizing power generation efficiency and electricity fee measurement. The inverter used in the utility model is a three-phase inverter, which can integrate the electric energy generated by the distributed photovoltaic system into the three-phase power grid.

[0034] The monitoring module is used to monitor the current and voltage in the external power grid in real time and obtain the power data of the external power grid. The monitoring module includes a current transformer and a voltage transformer. The current transformer is an analog output type electronic current transformer, which is used to convert the high current in the external power grid into a low current suitable for measurement by the metering module; the voltage transformer is an electromagnetic voltage transformer, which is used to convert the high voltage in the external power grid into a low voltage suitable for measurement by the metering module.

[0035] The metering module is used to accurately measure the consumption of electric energy. The metering module includes a metering chip and an ADC analog-to-digital converter, both of which are electrically connected to the microcontroller. The ADC analog-to-digital converter is used to convert the current analog signal and voltage analog signal collected in real time by the current transformer and the voltage transformer in the monitoring module into digital signals, and the converted digital signals are transmitted to the metering chip, which measures the electric energy consumption and transmits the metering data to the microcontroller.

[0036] The code scanning device is used to authenticate the identity of the meter reader, and the code scanning device includes a fill light and a scanning structure electrically connected to the microcontroller. The fill light is used to provide lighting in the case of insufficient light, so that the scanning structure can clearly read the QR code containing the identity information provided by the meter reader; the scanning structure is a scanning camera, which is used to capture the image of the external QR code and transmit the obtained QR code image data to the microcontroller. The microcontroller further transmits the data information to the remote monitoring center through the LoRa communication module, and receives the command of the remote control center to control the opening and closing of the scanning structure.

[0037] It also includes a display module and a data storage module, both of which are electrically connected to the microcontroller. The display module is an LCD display screen for displaying the current operating status and power consumption data, and the storage module is a RAM random access memory for writing the data that the three-phase dual-mode smart energy meter needs to store.

Claims

1. A three-phase dual-mode smart electric energy meter, comprising a microcontroller, characterized in that: It also includes an infrared communication module, a LoRa communication module, an inverter, a monitoring module, a metering module and a code scanning device, all of which are electrically connected to the microcontroller. The monitoring module includes a current transformer and a voltage transformer. The code scanning device comprises a fill light and a scanning structure both electrically connected to the microcontroller, and the scanning structure is a scanning camera.

2. A three-phase dual-mode smart energy meter according to claim 1, characterized in that: The metering module includes a metering chip and an ADC analog-to-digital converter, both of which are electrically connected to a microcontroller.

3. A three-phase dual-mode smart energy meter according to claim 1, characterized in that: Also included is a display module and a data storage module both electrically connected to the microcontroller.

4. A three-phase dual-mode smart energy meter according to claim 3, characterized in that: The display module is an LCD liquid crystal display screen.

5. The three-phase dual-mode smart energy meter according to claim 3, characterized in that: The storage module is a random access memory (RAM).

6. A three-phase dual-mode smart electric energy meter according to claim 1, characterized in that: The current transformer is an analog output type electronic current transformer.

7. The three-phase dual-mode smart energy meter according to claim 1, characterized in that: The voltage transformer is an electromagnetic voltage transformer.

8. The three-phase dual-mode smart energy meter according to claim 1, characterized in that: The inverter is a three-phase inverter.

9. The three-phase dual-mode smart energy meter according to claim 1, characterized in that: The infrared communication module includes an infrared emitting diode and an infrared receiving diode.

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