A containing mechanism and a single-phase intelligent electric energy meter remote communication device

Abstract

The utility model relates to a remote communication technical field of electric energy meter, especially a containing mechanism and single -phase intelligent electric energy meter remote communication device, including, box body, box body is by module box, lower board, flip, antenna, PC board and light guide column are composed, buckle connection has lower board on module box, the flip detachable connection is in module box, the antenna is connected on module box one side, PC board sets up in module box upside, light guide column installs to module box in through PC board, fixed mounting has power management unit in module box internal space, and power management unit forms single -phase intelligent electric energy meter remote communication module detection circuit through electric connection external interface unit, 4G module, microprocessor, storage unit and pilot lamp, through the mode of remote communication acquisition module, the real -time and frozen data of electric energy meter are copied and read, and the accurate analysis of data is reported to the main station, reduces the demand to power and increases the adaptability of module and electric energy meter, can carry out the timely report of electric energy meter power failure information after the electric energy meter power failure.

Description

Technical Field

[0001] This utility model relates to the field of remote communication technology for electricity meters, and in particular to a housing mechanism and a remote communication device for a single-phase smart electricity meter. Background Technology

[0002] With the increasing number of distributed energy sources connected to the grid, the demand for high-precision data acquisition and value-added services beyond metering functions from single-phase energy meters is growing. High-frequency, real-time electricity consumption data can provide effective data support for grid load analysis, power quality monitoring, and electricity consumption behavior analysis. Furthermore, due to the very low power consumption of single-phase energy meters and the limited power design of the internal circuit breaker, the overall unit does not have sufficient power capacity to support the installation of a remote communication data acquisition module.

[0003] In existing technologies, basic data of electricity meters are collected through high-frequency acquisition by data collectors or concentrators. However, due to the large number of electricity meters connected to the meter, the amount of data collected is limited and cannot effectively support the application needs of data analysis and value-added services. Furthermore, the existing electricity meter installation cannot be modularized, and the installation and disassembly of the entire electricity meter relies excessively on bolts. Over time, rusting of the bolts will prevent the internal structure of the electricity meter from being disassembled and replaced. Utility Model Content

[0004] The purpose of this section is to outline some aspects of embodiments of the present invention and to briefly describe some preferred embodiments. Simplifications or omissions may be made in this section, as well as in the abstract and title of this application, to avoid obscuring the purpose of these documents; however, such simplifications or omissions should not be construed as limiting the scope of the present invention.

[0005] In view of the above-mentioned problems that existing electricity meter installations cannot be modularized, and the installation and disassembly of the entire electricity meter rely excessively on bolts, and the bolts will rust after long-term use, making it impossible to disassemble and replace the internal structure of the electricity meter, this utility model is proposed.

[0006] Therefore, the purpose of this utility model is to provide a receiving mechanism.

[0007] To solve the above-mentioned technical problems, this utility model provides the following technical solution: a housing mechanism, comprising a box body, wherein the box body is composed of a module box, a lower plate, a flip cover, an antenna, a PC board and a light guide column;

[0008] The module box is snapped to a lower plate, the flip cover is detachably connected to the module box, the antenna is connected to one side of the module box, the PC board is set on the upper side of the module box, and the light guide column is installed into the module box through the PC board.

[0009] As a preferred embodiment of the receiving mechanism of this utility model, the module box has an insertion hole near the edge on its upper side, a plurality of slots are provided on one side of the insertion hole, and an auxiliary slot is provided on one side of the module box.

[0010] In a preferred embodiment of the receiving mechanism of this utility model, a connecting hole is provided in the middle of the module box, and a side frame is fixedly installed between the connecting holes.

[0011] In a preferred embodiment of the receiving mechanism of this utility model, the lower plate includes a positioning post connected to one side of the lower plate, inserts symmetrically fixedly installed on the lower plate, and slots and plates connected on both sides of the inserts, with the plates and slots symmetrically arranged.

[0012] In a preferred embodiment of the receiving mechanism of this utility model, a connecting groove is provided on one side of the flip cover, and a connecting post is fixedly installed on the flip cover, with the connecting post positioned on one side of the connecting groove.

[0013] In a preferred embodiment of the receiving mechanism of this utility model, the PC board includes a mounting post fixedly installed on the side of the PC board, the PC board has a fixing hole at the position corresponding to the positioning post, and the PC board has a through hole at the position corresponding to the insertion hole.

[0014] In a preferred embodiment of the receiving mechanism of this utility model, the light guide post includes a number of locking strips, which are arranged in a circle and fixedly connected to the light guide post at both ends. The locking strips are elastic, and the top of the light guide post is larger than the diameter of the insertion hole.

[0015] As a preferred embodiment of the housing mechanism of this utility model, a power management unit is fixedly installed in the internal space of the module box. The power management unit forms a detection circuit for a single-phase smart energy meter remote communication module by electrically connecting an external interface unit, a 4G module, a microprocessor, a storage unit, and an indicator light.

[0016] The power management unit provides operating power to the storage unit and indicator lights via a microprocessor.

[0017] The beneficial effects of the housing mechanism of this utility model are as follows: by using a detachable connection between the various structures of the electricity meter, the existing bolt connection method is replaced, which solves the problem that the current electricity meter installation cannot be modularly installed and disassembled, the installation and disassembly of the entire electricity meter relies too much on bolts, and the bolts will rust after long-term use, making it impossible to disassemble and replace the internal structure of the electricity meter. This improves the modular connection between the various structures of the entire electricity meter and makes it easier to install and disassemble.

[0018] Given that in actual use, the aforementioned technical solutions still have a containment mechanism, and that existing electricity meters mainly collect basic data through high-frequency data acquisition by collectors or concentrators, the amount of data collected is limited due to the large number of downstream electricity meters, which cannot effectively support the application needs of data analysis and value-added services.

[0019] To solve the above-mentioned technical problems, this utility model also provides the following technical solution: a remote communication device for a single-phase smart energy meter, including a housing mechanism and a power management unit in the module box for providing working power to other modules;

[0020] The microprocessor inside the module box communicates with and interacts with the electricity meter via an external interface unit.

[0021] The storage unit within the module box is used to store the collected data.

[0022] The 4G module inside the module box is electrically connected to the microprocessor to enable communication with the uplink power grid master station;

[0023] The indicator lights inside the module box indicate the module's working status.

[0024] The external interface unit inside the module box enables communication between the module and the electricity meter;

[0025] The external interface unit is electrically connected to the housing.

[0026] As a preferred embodiment of the remote communication device for a single-phase smart energy meter according to this utility model, the light guide column is connected to the detection circuit of the remote communication module of the single-phase smart energy meter through an electrical connection indicator light;

[0027] The indicator light includes two modes: remote and local. The remote indicator light is red, indicating the communication status between the module and the power grid master station, while the local indicator light is green, indicating the communication status between the module and the electricity meter.

[0028] The external interface unit defines communication interface and interaction interface signals, both of which adopt an open-drain output method to communicate with the energy meter for data and signal handshake interaction, and is used to be compatible with different single-phase energy meters.

[0029] The beneficial effects of this utility model's remote communication device for a single-phase smart energy meter are as follows: By configuring a remote communication acquisition module in the single-phase smart energy meter, the real-time and frozen data of the energy meter are read and reported to the main station for accurate data analysis, supporting the development of value-added services. The remote communication acquisition module interface is defined using an open-drain output method, which is compatible with different energy meters. A pin for a specific working state is defined, allowing the working states of the energy meter and the module to coordinate, avoiding the superposition of peak power consumption of the whole machine, reducing power requirements, increasing the adaptability of the module and the energy meter, and enabling timely reporting of energy meter power outage information after power failure. Attached Figure Description

[0030] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. Among them:

[0031] Figure 1 This is a schematic diagram showing the overall structure of a housing mechanism.

[0032] Figure 2 This is a schematic diagram of a housing module box structure.

[0033] Figure 3 This is a schematic diagram of a connection structure between a housing module box and a lower plate.

[0034] Figure 4 This is a schematic diagram of a hinged cover structure for a receiving mechanism.

[0035] Figure 5 This is a schematic diagram of a light guide column structure for a housing mechanism.

[0036] Figure 6 This is a schematic diagram of a housing mechanism and a remote communication device for a single-phase smart energy meter.

[0037] Figure 7 This is a schematic diagram of a housing mechanism and a remote communication device for a single-phase smart energy meter. Detailed Implementation

[0038] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0039] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Those skilled in the art can make similar extensions without departing from the spirit of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0040] Secondly, the term "an embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in different places in this specification does not necessarily refer to the same embodiment, nor is it a single embodiment or an embodiment selectively excluded from other embodiments.

[0041] Example 1

[0042] Reference Figure 1 - Figure 5 This is the first embodiment of the present invention. This embodiment provides a housing mechanism, including a box 1. The box 1 is composed of a module box 11, a lower plate 12, a flip cover 13, an antenna 14, a PC board 15, and a light guide column 16. The lower plate 12 is snapped onto the module box 11. The flip cover 13 is detachably connected to the module box 11. The inner side of the flip cover 13 is provided with symmetrical grooves. The antenna 14 is connected to one side of the module box 11. The PC board 15 is disposed on the upper side of the module box 11. The light guide column 16 is installed into the module box 11 through the PC board 15. Through the above-mentioned components, the energy meter can be modularly assembled for easy disassembly and assembly, without the use of bolts for installation.

[0043] For details, see attached. Figure 1 and Figure 2 As shown, a socket 111 is provided on the upper side of the module box 11 near the edge. Several slots 112 are provided on one side of the socket 111. The slots 112 are located around the socket 111. The device to be installed is installed by snapping it into the slot 112 through the socket 111. An auxiliary groove 113 is provided on one side of the module box 11. The auxiliary groove 113 is located on the middle side of the module box 11, and has a rectangular structure with a certain groove depth.

[0044] Further details are attached. Figure 2 As shown, a connection hole 114 is provided in the middle of the module box 11. The connection hole 114 is located on one side of the auxiliary groove 113. There are two connection holes 114, which are symmetrically arranged. A side frame 115 is fixedly installed between the connection holes 114. There is a certain distance between the side frame 115 and the connection hole 114. The side frame 115 has a certain width on both sides so that it can be embedded in the groove provided by the flip cover 13 so that the flip cover 13 can be snapped onto the module box 11.

[0045] Furthermore, as shown in the attached document. Figure 3As shown, the lower plate 12 includes two positioning posts 121 connected to one side of the lower plate 12. The positioning posts 121 are respectively set on one side of the lower plate 12. The positioning posts 121 can make the module box 11 and the PC board 15 be positioned on the lower plate 12 according to the installation sequence. The lower plate 12 has two insert strips 122 that are symmetrically fixedly installed. The insert strips 122 are embedded in the bottom position of the module box 11. The insert strips 122 are connected to the slots 123 and the plates 124 on both sides. The plates 124 and the slots 123 are symmetrically arranged. The slots 123 and the plates 124 are fixedly connected on the two sides perpendicular to the insert strips 122. The module box 11 corresponding to the slots 123 and the plates 124 is also fixedly connected to the slots 123 and the plates 124. This facilitates the snap-fit ​​connection between the lower plate 12 and the module box 11.

[0046] Furthermore, as shown in the attached document. Figure 4 As shown, a connecting groove 131 is provided on one side of the flip cover 13. The connecting groove 131 is provided to facilitate the installation of the side frame 115. A connecting post 132 is fixedly installed on the flip cover 13. The connecting post 132 is located on one side of the connecting groove 131. The connecting post 132 can enter into the connecting hole 114 and can rotate within the connecting hole 114. The flip cover 13 can be lifted manually through the auxiliary groove 113.

[0047] Furthermore, as shown in the attached document. Figure 1 The PC board 15 includes a mounting post 151 fixedly installed on the side of the PC board 15. The PC board 15 has a fixing hole 152 at the position corresponding to the positioning post 121. The fixing hole 152 allows the positioning post 121 to be embedded in it, so that the PC board 15 can be installed on the module box 11. The PC board 15 has a through hole 153 at the position corresponding to the insertion hole 111. The through hole 153 allows the light guide post 16 to pass through and be snapped into the insertion hole 111 on the module box 11.

[0048] Furthermore, as shown in the attached document. Figure 5 The light guide post 16 includes several locking strips 161, which are arranged in a circle and fixedly connected to the light guide post 16 at both ends. The locking strips 161 are elastic, so that as the light guide post 16 moves, the locking strips 161 are embedded and snapped into the slots 112 in the insertion holes 111 provided in the module box 11, thereby installing the light guide post 16 onto the module box 11. The top of the light guide post 16 is larger than the diameter of the insertion hole 111, so that the top of the light guide post 16 can be removed and pulled out.

[0049] Furthermore, a power management unit 2 is fixedly installed inside the module box 11. The power management unit 2 forms a detection circuit for the remote communication module of the single-phase smart energy meter by electrically connecting the external interface unit 7, the 4G module 5, the microprocessor 3, the storage unit 4, and the indicator light 6. The power management unit 2 provides working power to the storage unit 4 and the indicator light 6 through the microprocessor 3.

[0050] Operation process: First, the lower plate 12 is inserted into the bottom of the module box 11 via its symmetrically arranged inserts 122. The inserts 122 are then symmetrically connected vertically to each other via slots 123 and plates 124 on both sides, which in turn are connected to the corresponding slots 123 and plates 124 on the bottom of the module box 11, thus completing the assembly of the lower plate 12 and the module box 11. Next, the PC board 15 is placed on top of the module box 11, aligning the fixing holes 152 on the side of the PC board 15 with the positioning posts 121 on the lower plate 12 and inserting it for positioning. Simultaneously, ensure… The through hole 153 on the PC board 15 corresponds to the insertion hole 111 near the edge on the upper side of the module box 11. Then, the light guide post 16 is taken, and its several circumferentially distributed elastic clips 161 at its bottom are aligned with the through hole 153 on the PC board 15 and moved downwards. The clips 161 move with the light guide post 16, passing through the through hole 153 and embedding into the slot 112 on the circumference of the insertion hole 111 in the module box 11. The elasticity of the clips 161 achieves a snap-fit ​​fixation. The top of the light guide post 16, because its diameter is larger than the insertion hole 111, can be exposed externally for subsequent... Pull out; then connect the antenna 14 to one side of the module box 11; then align the flip cover 13 with the side frame 115 symmetrically arranged in the middle of the module box 11 through the connecting slot 131 on one side (the side frame 115 is fixed between two symmetrical connecting holes 114 and is a certain distance from the connecting holes 114), so that the connecting post 132 on the flip cover 13 enters the connecting hole 114 and can rotate, completing the detachable connection between the flip cover 13 and the module box 11. At this time, the flip cover 13 can be manually lifted through the rectangular auxiliary slot 113 in the middle of one side of the module box 11. During the whole process, the power management unit 2 in the internal space of the module box 11 has been pre-fixed. It forms a single-phase smart energy meter remote communication module detection circuit by electrically connecting the external interface unit 7, 4G module 5, microprocessor 3, storage unit 4 and indicator light 6. The power management unit 2 provides working power to the storage unit 4 and indicator light 6 through the microprocessor 3. All components are modularly assembled by means of buckles, embedding, etc. No bolts are needed. The overall installation of the energy meter housing mechanism can be completed by manual operation.

[0051] Example 2

[0052] Reference Figure 1 - Figure 7This is the second embodiment of the present invention. Unlike the previous embodiment, this embodiment provides a remote communication device for a single-phase smart energy meter, including a power management unit 2 in a module box 11 for providing working power to other modules; a microprocessor 3 in the module box 11 for communication and signal interaction with the energy meter through an external interface unit 7; a storage area unit in the module box 11 for storing collected data; a 4G module 5 in the module box 11 electrically connected to the microprocessor 3 for communication with the upstream power grid master station; an indicator light 6 in the module box 11 for indicating the module's working status; an external interface unit 7 in the module box 11 for communication transfer between the module and the energy meter; and the external interface unit 7 is electrically connected to the box body 1.

[0053] Among them, the 4G module 5 includes a 4G remote communication module, a SIM card interface circuit and a module control circuit, which realizes communication between the module and the mobile network base station. The SIM card supports ESIM and USIM, etc.

[0054] Among them, microprocessor 3 communicates with the electricity meter through an asynchronous serial communication port with an adaptive communication rate of 1200~19200bps, and communicates with the 4G module through an asynchronous serial communication port.

[0055] The storage unit 4, connected to the microprocessor 3, is used to store the real-time and frozen data of the electricity meter collected by the module.

[0056] Specifically, the light guide column 16 is connected to the detection circuit of the remote communication module of the single-phase smart energy meter via the electrical connection indicator light 6; the indicator light 6 includes two modes: remote and local. The remote indicator light 6 uses a red light to indicate the communication status between the module and the power grid master station, while the local indicator light 6 uses a green light to indicate the communication status between the module and the energy meter; the external interface unit 7 defines communication interface and interaction interface signals, both of which adopt an open-drain output method to perform data communication and signal handshake interaction with the energy meter, for compatibility with different single-phase energy meters.

[0057] The power management unit 2 uses a +12V input voltage, with a load operating current of 0mA to 125mA and a maximum peak current of 250mA. It has an internal current limiting circuit, and the maximum output current of the interface is limited to 300mA in the event of a short circuit fault in the module, to prevent power failure of the electricity meter. The power management unit 2 uses a DC-DC module to convert the 12V power of the input module to 4V power for the operation of the 4G module 5, and to convert the 12V power to 3.3V power for the operation of the microprocessor 3, the storage unit 4, and the indicator light 6. The power management unit 2 has a backup power supply to the communication module. After detecting a power failure of the electricity meter, the remote communication acquisition module can actively report to the main station.

[0058] The interface definition of external interface unit 7 is shown in the attached figure. Figure 7 As shown, the communication module is connected to the energy meter via a communication interface. The communication module's low-voltage interface uses a 2×6 double-row pin connector. Both the communication interface and the interaction interface signals use an open-drain output method for data communication and signal handshake interaction with the energy meter, ensuring compatibility with different energy meters. The interface defines a handshake signal to indicate the communication module's operating status and notify the energy meter, preventing the peak power consumption demand of the energy meter from accumulating. The interface allows for the creation of custom combination function signals to extend the communication function between the module and the energy meter. Custom signals can use reserved signals FN1 and FN2, or they can be combined with other signals to form a combination function signal. The interface also defines a handshake signal as a matching indicator between the module and the energy meter; when the address matches correctly, the module outputs a signal to the energy meter.

[0059] The remaining structure is the same as that in Example 1.

[0060] Operation process: The power management unit 2 inside module box 11 receives an external +12V voltage input. The operating current range of this voltage load is 0mA~125mA, with a maximum peak current of 250mA. The internal current limiting circuit limits the interface output to a maximum of 300mA in the event of a short circuit fault to protect the power supply of the electricity meter. The power management unit 2 uses a DC-DC module to convert the 12V power supply to 4V to supply the 4G module 5, and to 3.3V to supply the microprocessor 3, storage unit 4, and indicator lights 6. It also has a backup power supply. When the electricity meter stops working, it will provide backup power. The system supports remote communication acquisition modules to actively report data to the master station. Microprocessor 3 communicates with the energy meter via an asynchronous serial port, with an adaptive communication rate of 1200–19200 bps. It also communicates with the 4G module 5 via the asynchronous serial port. The 4G module 5 includes a 4G remote communication module, a SIM card interface circuit, and a module control circuit. The SIM card supports ESIM and USIM, enabling communication with the mobile network base station and subsequently with the upstream power grid master station. The storage unit is connected to microprocessor 3 and is used to store real-time data from the energy meter acquired by the module. Data and frozen data; Indicator light 6 includes remote and local modes. Remote indicator light 6 (red light) indicates the communication status between the module and the power grid master station, and local indicator light 6 (green light) indicates the communication status between the module and the energy meter. The light guide column 16 is connected to the detection circuit through the electrical connection of indicator light 6; External interface unit 7 is electrically connected to the box 1, using 2×6 double row pins as connectors. Both the communication interface and the interaction interface signals use the open-drain output method to communicate with the energy meter for data and signal handshake interaction to ensure compatibility with different energy meters. The interface defines a handshake signal to indicate the working status of the communication module and notify the energy meter to avoid the superposition of peak power consumption demand. Customizable combination function signals (using reserved signals FN1, FN2 or reserved signals combined with other signals) can be used as communication function extensions. A handshake signal is also defined as a matching indicator between the module and the energy meter. When the module receives the signal, if the address match is correct, it outputs a signal to the energy meter. By configuring a remote communication acquisition module in the single-phase smart energy meter, the real-time and frozen data of the energy meter are read and reported to the master station for accurate data analysis to support the development of value-added services. The remote communication acquisition module interface is defined using an open-drain output method, which is compatible with different energy meters. A pin for a working state is defined to coordinate the working states of the energy meter and the module, avoiding the superposition of peak power consumption of the whole machine, reducing power requirements, increasing the adaptability of the module and the energy meter, and enabling timely reporting of energy meter power outage information after power failure.

[0061] It should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solution of this utility model without departing from the spirit and scope of the technical solution of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A receiving mechanism, characterized in that: include, The box body (1) is composed of a module box (11), a lower plate (12), a flip cover (13), an antenna (14), a PC board (15), and a light guide column (16); The module box (11) is snapped to a lower plate (12), the flip cover (13) is detachably connected to the module box (11), the antenna (14) is connected to one side of the module box (11), the PC board (15) is set on the upper side of the module box (11), and the light guide column (16) is installed into the module box (11) through the PC board (15).

2. The receiving mechanism as described in claim 1, characterized in that: The module box (11) has a socket (111) on its upper side near the edge, and a number of slots (112) are provided on one side of the socket (111). An auxiliary slot (113) is provided on one side of the module box (11).

3. The receiving mechanism as described in claim 2, characterized in that: A connection hole (114) is provided in the middle of the module box (11), and a side frame (115) is fixedly installed between the connection holes (114).

4. The receiving mechanism as described in claim 2 or 3, characterized in that: The lower plate (12) includes a positioning post (121) connected to one side of the lower plate (12), and inserts (122) symmetrically fixedly installed on the lower plate (12). The inserts (122) have slots (123) and plates (124) connected on both sides, and the plates (124) and slots (123) are symmetrically arranged.

5. The receiving mechanism as described in claim 4, characterized in that: A connecting groove (131) is provided on one side of the flip cover (13), and a connecting post (132) is fixedly installed on the flip cover (13). The connecting post (132) is located on one side of the connecting groove (131).

6. The receiving mechanism as described in claim 5, characterized in that: The PC board (15) includes a mounting post (151) fixedly installed on the side of the PC board (15), the PC board (15) has a fixing hole (152) at the position corresponding to the positioning post (121), and the PC board (15) has a through hole (153) at the position corresponding to the insertion hole (111).

7. The receiving mechanism as described in claim 6, characterized in that: The light guide post (16) includes a number of clips (161), which are arranged in a circle and fixedly connected to the light guide post (16) at both ends. The clips (161) are elastic, and the top of the light guide post (16) is larger than the diameter of the insertion hole (111).

8. The receiving mechanism as claimed in claim 1, characterized in that: The power management unit (2) is fixedly installed in the internal space of the module box (11). The power management unit (2) forms a detection circuit for the remote communication module of the single-phase smart energy meter by electrically connecting the external interface unit (7), 4G module (5), microprocessor (3), storage unit (4) and indicator light (6). The power management unit (2) provides operating power to the storage unit (4) and indicator lights (6) through the microprocessor (3).

9. A remote communication device for a single-phase smart energy meter, characterized in that: Including the receiving mechanism as described in any one of claims 1 to 8, and, The power management unit (2) inside the module box (11) is used to provide working power to other modules; The microprocessor (3) inside the module box (11) communicates and interacts with the electricity meter through the external interface unit (7); The storage unit (4) inside the module box (11) is used for storing the collected data; The 4G module (5) inside the module box (11) is electrically connected to the microprocessor (3) to realize communication with the upstream power grid master station; The indicator light (6) inside the module box (11) indicates the working status of the module; The external interface unit (7) inside the module box (11) enables communication switching between the module and the energy meter; The external interface unit (7) is electrically connected to the housing (1).

10. The remote communication device for a single-phase smart energy meter as described in claim 9, characterized in that: The light guide column (16) is connected to the detection circuit of the remote communication module of the single-phase smart energy meter through the electrical connection indicator (6); The indicator light (6) includes two modes: remote and local. The remote indicator light (6) uses a red light to indicate the communication status between the module and the power grid master station, while the local indicator light (6) uses a green light to indicate the communication status between the module and the electricity meter. The external interface unit (7) is defined with communication interface and interaction interface signals, both of which adopt the open-drain output method to communicate with the energy meter for data and signal handshake interaction, so as to be compatible with different single-phase energy meters.

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