Removing electric energy meter base number reading device

Abstract

The utility model relates to the technical field of electric energy meter management, in particular to a detached electric energy meter base number reading device, which comprises a device body and a data reading module arranged in the device body, a rectangular groove is arranged at the upper end of the device body, and a conductive terminal matched with an electric energy meter slot is arranged at the bottom of the rectangular groove; the data reading module comprises a central processing unit, a data acquisition module, a data storage module, a power supply inverter circuit and a wireless communication module, and the data acquisition module, the data storage module and the wireless communication module are electrically connected with the central processing unit respectively. A direct-current power supply is converted into an alternating-current power supply suitable for the work of the electric energy meter through the power supply inverter circuit, and the data of the electric energy meter is accurately read, stored and transmitted through the data reading module, so that the data of the electric energy meter is read on site.

Description

Technical Field

[0001] The utility model relates to the technical field of electric energy meter management, in particular to a device for reading the bottom number of a disassembled electric energy meter. Background Art

[0002] With the rapid economic progress, the demand for meter calculation and management is also increasing. In order to improve regional competitiveness and promote economic development, advanced equipment and intelligent systems have become necessary elements. In recent years, my country's power industry has kept pace with the times and actively promoted the application of smart meters, which has greatly expanded the coverage of smart meters.

[0003] The existing disassembled electric energy meter bottom reading device has many inconveniences during the installation and removal of the electric energy meter, especially during the removal of the electric energy meter, because the electric energy meter is powered off during removal, the electric energy meter data cannot be read on site, resulting in the inability to timely discover the problems of the electric energy meter, such as abnormal power or leakage, which will bring certain economic losses to users and enterprises. Secondly, during the equipment maintenance and inspection process, the use of the equipment cannot be accurately grasped, making it difficult to plan and arrange the maintenance and repair. Utility Model Content

[0004] In order to solve the above-mentioned problems, the utility model provides a device for reading the bottom number of an electric energy meter, comprising a device body and a data reading module arranged inside the device body, wherein a rectangular groove is arranged at the upper end of the device body, and a conductive terminal adapted to the electric energy meter slot is arranged at the bottom of the rectangular groove; the data reading module comprises a central processing unit, a data acquisition module, a data storage module, a power inverter circuit and a wireless communication module, and the data acquisition module, the data storage module and the wireless communication module are electrically connected to the central processing unit respectively.

[0005] The conductive terminal includes a three-phase power supply terminal and a communication connection terminal. The three-phase power supply terminal is electrically connected to the power inverter circuit, and the communication connection terminal is electrically connected to the data acquisition module.

[0006] The power inverter circuit includes a fuse, a PWM control unit, a transformer, a first field effect transistor and a second field effect transistor. The fuse is electrically connected to the power supply pin of the PWM control unit and the primary coil of the transformer respectively. The primary coil of the transformer is electrically connected to the drains of the first field effect transistor and the second field effect transistor respectively. The output end of the PWM control unit is electrically connected to the gates of the first field effect transistor and the second field effect transistor respectively. The sources of the first field effect transistor and the second field effect transistor are grounded.

[0007] The device body is provided with a DC power supply input interface, and the input voltage of the DC power supply input interface is 12V.

[0008] The data acquisition module supports the DL645 / DL698 communication protocol.

[0009] The communication connection terminal and the three-phase power supply terminal are arranged in an alternate manner.

[0010] The power inverter circuit is also provided with an isolation filter circuit, and the isolation filter circuit is electrically connected to the secondary coil of the transformer.

[0011] An optical camera is arranged on the side of the device body, and a light recognition module is also arranged inside the device body. The light recognition module is electrically connected to the optical camera and the data reading module respectively.

[0012] Beneficial effect: The utility model is a device for reading the base number of a disassembled electric energy meter. By arranging a rectangular groove and a conductive terminal compatible with the electric energy meter slot on the device body, the device can install the disassembled electric energy meter, thereby improving work efficiency; and a power inverter circuit is used to convert a DC power supply into an AC power supply suitable for the operation of the electric energy meter, thereby meeting the working requirements of the electric energy meter. The data reading module accurately reads, stores and transmits the base number of the electric energy meter, thereby realizing the reading of the on-site electric energy meter data. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is a schematic diagram of the data reading module;

[0014] Figure 2 This is a schematic diagram of the structure of the disassembled electric energy meter bottom reading device;

[0015] Figure 3 This is the power inverter circuit diagram;

[0016] 1. Device body; 2. Electric energy meter; 3. Rectangular groove; 4. DC power supply input interface. DETAILED DESCRIPTION

[0017] Exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings.

[0018] Example

[0019] See also Figure 1-Figure 2 The present embodiment provides a device for reading the base number of a disassembled electric energy meter 2, which is used for intelligently reading the data of the disassembled electric energy meter 2, and includes a device body 1. The device body 1 is a square structure as a whole, and a rectangular groove 3 extending inward is provided at the upper end. The projection size of the rectangular groove 3 is larger than the projection size of the electric energy meter 2, which is convenient for inserting the electric energy meter 2 into the device body 1.

[0020] To facilitate electrical connection between the device body 1 and the electric energy meter 2, a conductive terminal compatible with the slot of the electric energy meter 2 is provided at the bottom of the rectangular groove 3, and the conductive terminal includes a three-phase power supply terminal and a communication connection terminal. The communication connection terminal and the three-phase power supply terminal are arranged at intervals to prevent the three-phase power supply terminal from causing electrical signal interference to the communication connection terminal, resulting in inaccurate data reading of the electric energy meter 2.

[0021] In order to enable the device body 1 to read the base data of the electric energy meter 2, a data reading module is also arranged inside the device body 1, and the data reading module includes a central processing unit, a data acquisition module, a data storage module, a power inverter circuit and a wireless communication module, wherein the data acquisition module, the data storage module and the wireless communication module are electrically connected to the central processing unit respectively, and the output end of the power inverter circuit is electrically connected to the three-phase power supply terminal.

[0022] In order to realize that the power inverter circuit supplies power to the inserted electric energy meter 2, the device body 1 is provided with a DC power supply input interface 4, the input voltage of the DC power supply input interface 4 is 12V, on the one hand, the DC power supply input interface 4 is electrically connected to the data reading module to provide driving power for the entire data reading module; on the other hand, the DC power supply input interface 4 is connected to the input end of the power inverter circuit, the power inverter circuit includes a fuse, a PWM control unit, a transformer, a first field effect transistor and a second field effect transistor, the PWM control unit adopts a CW3525A chip, the DC power supply input interface 4 is electrically connected to the power supply pin of the PWM control unit and the primary coil of the transformer through the fuse, the primary coil of the transformer is also electrically connected to the drain of the first field effect transistor and the second field effect transistor, the output end of the PWM control unit is electrically connected to the gate of the first field effect transistor and the second field effect transistor, and the source of the first field effect transistor and the second field effect transistor is grounded. The input voltage is boosted by the transformer, and the PWM control unit controls the conduction or cutoff of the first field effect tube and the second field effect tube respectively, so as to convert the 12V input voltage of the DC power supply input interface 4 into a 220V AC voltage. At the same time, the power inverter circuit is also provided with an isolation filter circuit, which is electrically connected to the secondary coil of the transformer, and filters the converted AC voltage, so as to output a stable AC voltage.

[0023] The power inverter circuit supplies AC power to the inserted energy meter 2 through the three-phase power supply terminal. After the energy meter 2 is powered on, the base number of the energy meter 2 is received by the data acquisition module through the communication connection terminal. The data acquisition module supports the DL645 / DL698 communication protocol. The data acquisition module can read the power data in the energy meter 2 in real time, without manual intervention to realize the reading of the base number of the energy meter 2, and transmit the read data of the energy meter 2 to the central processor, and the data storage module stores the data. The data reading module can also be interconnected with the mobile terminal of the staff through the wireless communication module. The central processor can send the stored data in the data storage module to the mobile terminal through the wireless communication module for data backup, which is convenient for subsequent management.

[0024] In another specific embodiment, in order to enable the device body 1 to automatically identify the electric energy meter 2 removed on site, an optical camera is arranged on the side of the device body 1, and an optical recognition module is also arranged inside the device body 1. The optical recognition module is electrically connected to the optical camera and the data reading module respectively. The optical recognition module can identify the logo of the electric energy meter 2 through the optical camera and extract the type information of the electric energy meter 2.

Claims

1. A disassembled electric energy meter bottom reading device, characterized in that: The device comprises a device body and a data reading module arranged inside the device body, wherein a rectangular groove is arranged at the upper end of the device body, a conductive terminal adapted to the electric energy meter slot is arranged at the bottom of the rectangular groove, and the conductive terminal is electrically connected to the data reading module. The data reading module includes a central processing unit, a data acquisition module, a data storage module, a power inverter circuit and a wireless communication module. The data acquisition module, the data storage module and the wireless communication module are electrically connected to the central processing unit respectively.

2. The device for reading the bottom number of the disassembled electric energy meter according to claim 1 is characterized in that: The conductive terminal includes a three-phase power supply terminal and a communication connection terminal. The three-phase power supply terminal is electrically connected to the power inverter circuit, and the communication connection terminal is electrically connected to the data acquisition module.

3. The device for reading the bottom number of the disassembled electric energy meter according to claim 2 is characterized in that: The power inverter circuit includes a fuse, a PWM control unit, a transformer, a first field effect transistor and a second field effect transistor. The fuse is electrically connected to the power supply pin of the PWM control unit and the primary coil of the transformer respectively. The primary coil of the transformer is electrically connected to the drains of the first field effect transistor and the second field effect transistor respectively. The output end of the PWM control unit is electrically connected to the gates of the first field effect transistor and the second field effect transistor respectively. The sources of the first field effect transistor and the second field effect transistor are grounded.

4. The device for reading the bottom number of a disassembled electric energy meter according to claim 1, characterized in that: The device body is provided with a DC power supply input interface, and the input voltage of the DC power supply input interface is 12V.

5. The device for reading the bottom number of a disassembled electric energy meter according to claim 1, characterized in that: The data acquisition module supports the DL645 / DL698 communication protocol.

6. The device for reading the bottom number of a disassembled electric energy meter according to claim 2, characterized in that: The communication connection terminal and the three-phase power supply terminal are arranged in an alternate manner.

7. The device for reading the bottom number of a disassembled electric energy meter according to claim 3, characterized in that: The power inverter circuit is also provided with an isolation filter circuit, and the isolation filter circuit is electrically connected to the secondary coil of the transformer.

8. The device for reading the bottom number of a disassembled electric energy meter according to claim 1, characterized in that: An optical camera is arranged on the side of the device body, and a light recognition module is also arranged inside the device body. The light recognition module is electrically connected to the optical camera and the data reading module respectively.

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