CN104966993A - Plug-in module of power distribution and utilization device, power distribution and utilization device and system - Google Patents

Abstract

The application provides a plug-in module of a power distribution device, and the plug-in module supports Beidou/GPS timing and positioning at the same time. Specifically, the plug-in module can receive the standard time sent by the Beidou/GPS satellite, and synchronize the standard time with the power distribution device through the communication module. Compared with the existing time synchronization method of the main station, the external module directly receives the standard time sent by Beidou/GPS, which is more accurate than the own time sent by the main station. In addition, the plug-in module directly performs time service to the power distribution device, which avoids the broadcast time synchronization error of the master station. Therefore, the plug-in module provided by the present application can ensure the accuracy of time synchronization of the power distribution device and realize precise positioning of the device.

Description

Plug-in modules for power distribution devices, power distribution equipment and systems

technical field

The application relates to the technical field of electric equipment, especially the plug-in module of the electrical distribution device, the electrical distribution equipment and the system.

Background technique

In the field of electric power, the power distribution system includes a power distribution master station and a power distribution device. The power distribution device can be a variety of power equipment, such as power distribution room equipment, switching station equipment, ring network cabinet equipment, desktop Transformers, etc. These power equipment usually need to exchange power data with the power distribution master station. It should be noted that the electricity consumption data needs to include the current time point, which is the global standard time. Therefore, it is necessary to set the time for distributing electrical devices.

At present, the master station of power distribution and utilization is time-setting for power distribution and utilization devices, that is, the master station of power distribution and utilization sends its own time data to the power distribution and utilization devices, so that the power distribution and utilization devices can set the time to the time of the power distribution and utilization master station. time. However, this time synchronization method makes the time set by the power distribution device not accurate enough.

Contents of the invention

In view of this, the present application provides an embodiment of a plug-in module of the power distribution device to solve the technical problem of poor time synchronization accuracy when the power distribution master station performs time synchronization for the power distribution device. In order to achieve said purpose, the technical scheme provided by the application is as follows:

A plug-in module for a power distribution device, including: a casing, a Beidou/GPS dual-mode positioning module, and a communication module; wherein:

The Beidou/GPS dual-mode positioning module is arranged in the housing, and is used to receive the standard time sent by the Beidou/GPS satellite according to the preset frequency, and send the standard time to the communication module;

The communication module is set in the housing and is used to send the standard time to the power distribution device; wherein, the standard time is used by the power distribution device to set its own time as the the standard time mentioned above.

Optionally, in the above-mentioned plug-in module of the power distribution device, the Beidou/GPS dual-mode positioning module is also used to obtain its own geographical coordinates from the Beidou/GPS satellites, and send the geographical coordinates to the The power distribution and consumption device sends; wherein, the geographic coordinates are used to trigger the power distribution and consumption device to send the geographic coordinates to the power distribution master station.

Optionally, the above-mentioned plug-in module of the power distribution device further includes: a display screen for displaying the geographic coordinates.

Optionally, in the above plug-in module of the power distribution device, the communication module includes: one or more of a micro-power wireless module, a Wi-Fi module, an Ethernet module, and a serial port module.

Optionally, the above-mentioned plug-in module of the power distribution device further includes: one or more of a micropower wireless module indicator light, a Wi-Fi module indicator light, an Ethernet module indicator light, and a serial port module indicator light.

Optionally, in the above-mentioned plug-in module of the power distribution device, the Beidou/GPS dual-mode positioning module is also used to send the first light to the receiving signal indicator light when receiving the standard time sent by the Beidou/GPS satellite. Signal;

The communication module is further configured to send a second lighting signal to the sending signal indicator light when sending the standard time to the power distribution device;

Correspondingly, the plug-in module also includes: a receiving signal indicator light and a sending signal indicator light; wherein:

The receiving signal indicator light is configured to trigger light emission in response to the first lighting signal;

The sending signal indicator light is configured to trigger light emission in response to the second lighting signal.

The present application also provides a power distribution device, including: a power distribution device and an external module; wherein:

The plug-in module is connected to the power distribution device, and is used to receive the standard time sent by the Beidou/GPS satellite according to the preset frequency, and send the standard time to the power distribution device;

The power distribution device is configured to receive the standard time and set its own time as the standard time.

Optionally, in the power distribution equipment, the plug-in module is also used to obtain its own geographic coordinates from the Beidou/GPS satellite, and send the geographic coordinates to the power distribution device;

The power distribution device is further configured to send its own terminal identification and the geographical coordinates to the power distribution master station, so as to trigger the power distribution master station to store the terminal identification and the geographical coordinates.

The present application also provides a power distribution and utilization system, including: a main power distribution and utilization station, several power distribution and utilization devices, and a number of external modules equal to the distribution and utilization devices; wherein: each of the power distribution and utilization devices Connect with each of the above-mentioned plug-in modules one by one;

The plug-in module is used to receive the standard time sent by the Beidou/GPS satellite according to the preset frequency, and send the standard time to the power distribution device;

The power distribution device is connected to the power distribution master station, and is used to receive the standard time and set its own time as the standard time;

The power distribution master station is used to communicate power data with the power distribution device, and when the plug-in module generates a fault signal, send the master station time to the power distribution device to trigger the The said distributed electrical device sets its own time as the time of the master station.

Optionally, in the above power distribution system, the plug-in module is also used to obtain its own geographic coordinates from the Beidou/GPS satellite, and send the geographic coordinates to the power distribution device;

The power distribution device is also used to send its own terminal identification and the geographic coordinates to the power distribution master station;

The power distribution master station is also used to correspondingly save the terminal identification and the geographic coordinates;

Correspondingly, the power distribution system also includes: a mobile terminal; wherein:

The mobile terminal is configured to obtain each of the terminal identifiers and the geographic coordinates corresponding to each of the terminal identifiers from the power distribution master station, and display each of the terminal identifiers at the positions determined by each of the geographic coordinates in the map application. The terminal identifier corresponding to the above geographic coordinates.

From the above, it can be known that the plug-in module embodiment of the power distribution device provided by this application includes a Beidou/GPS dual-mode positioning module and a communication module. The Beidou/GPS dual-mode positioning module can receive the standard time sent by Beidou/GPS satellites, and The standard time is sent to the power distribution device through the communication module, so that the power distribution device can perform time synchronization. Compared with the time synchronization method of the existing main station, the external module in this embodiment receives the standard time sent by the Beidou/GPS satellite, which is more accurate than the own time sent by the main station, and the distance between the external module and the power distribution device is In the plug-in form, the distance between the two is shorter, and the transmission distance of the standard time is shorter, so errors caused by long-distance transmission can be avoided. In addition, this embodiment is the standard time for receiving satellite transmissions, and satellite communications are more stable and timely than network cables. Therefore, the plug-in module of this embodiment can ensure the accuracy of time synchronization of the power distribution device.

Of course, implementing any product of the present application does not necessarily need to achieve all the above-mentioned advantages at the same time.

Description of drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings that need to be used in the description of the embodiments or the prior art. Obviously, the accompanying drawings in the following description are only It is an embodiment of the present application, and those skilled in the art can also obtain other drawings according to the provided drawings without creative work.

FIG. 1 is a structural diagram of Embodiment 1 of the plug-in module of the power distribution device provided by the present application;

Fig. 2 is a structural diagram of Embodiment 2 of the plug-in module of the power distribution device provided by the present application;

FIG. 3 is a structural diagram of an embodiment of the power distribution equipment provided by the present application;

FIG. 4 is a structural diagram of Embodiment 1 of the power distribution system provided by the present application;

FIG. 5 is a structural diagram of Embodiment 2 of the power distribution system provided by the present application.

Detailed ways

The following will clearly and completely describe the technical solutions in the embodiments of the application with reference to the drawings in the embodiments of the application. Apparently, the described embodiments are only some of the embodiments of the application, not all of them. Based on the embodiments in this application, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the scope of protection of this application.

Referring to FIG. 1 , it shows the structure of Embodiment 1 of the plug-in module of the power distribution device provided by the present application. As shown in Figure 1, the plug-in module may specifically include: a housing 1, a Beidou/GPS dual-mode positioning module 2 and a communication module 3; wherein:

The Beidou/GPS dual-mode positioning module 2 is set in the housing 1 and can receive the standard time sent by Beidou/GPS satellites according to the preset frequency. The plug-in module is set in the working environment of the power distribution device, generally outdoors. The shell 1 can be made of metal material or plastic material to protect the internal modules.

It should be noted that the Beidou/GPS dual-mode positioning module 2 can work in the Beidou positioning mode, and can also work in the GPS (Global Positioning System, Global Positioning System) positioning mode. The specific working process is that when time synchronization is required, the Beidou positioning mode is preferred, that is, the standard time sent by the Beidou satellite is first received. If the signal strength of the Beidou satellite is lower than a certain signal threshold, the GPS positioning mode can be selected. Of course, when time synchronization is required, the GPS positioning mode can be selected first, and when the signal strength of the GPS satellite is lower than a certain signal threshold, the Beidou positioning mode can be selected. Optionally, the Beidou/GPS satellite can be specifically a BD2/GPS dual system module of UM220, which is small in size, highly integrated, and low in power consumption, and is very suitable for large-scale applications.

It should be noted that Beidou/GPS satellites include both Beidou satellites and GPS satellites. These two satellites can transmit time signals outward in real time. Specifically, Beidou/GPS satellites can transmit time signals in real time. The time signals represent the global standard time. The Beidou/GPS dual-mode positioning module 2 receives the standard time sent by Beidou/GPS satellites and provides it to Electrical device for time synchronization of distribution and consumption devices.

It should be noted that the Beidou/GPS dual-mode positioning module 2 may include a clock sub-module and a receiving antenna. Among them, the clock module generates a clock signal according to a preset frequency, and sends the clock signal to the receiving antenna, and the receiving antenna is triggered after receiving the clock signal to receive the current standard time sent by the Beidou/GPS satellite. It can be seen that the Beidou/GPS dual-mode positioning module 2 receives the standard time every once in a while according to the preset frequency. Continuous accuracy of device time.

The Beidou/GPS dual-mode positioning module 2 sends the received standard time to the communication module 3, and sends it to the power distribution device through the communication module 3. The communication module 3 is arranged in the shell 1, is connected to the Beidou/GPS dual-mode positioning module 2 through a line, receives the standard time sent by the Beidou/GPS dual-mode positioning module 2, and the communication module 3 is connected with the power distribution device, and the standard time The time is sent to the power distribution device. After the power distribution device receives the standard time, the time of the power distribution device itself can be set as the marked time, thereby completing the time synchronization.

The connection mode between the communication module and the power distribution device can be wired or wireless. Wherein, the connection cable of the wired connection is relatively short, and the wireless connection is a short-distance wireless connection. It should be noted that the space distance between the plug-in module and the power distribution device is relatively short. Therefore, the standard time transmission distance from the plug-in module to the power distribution device is relatively short, and the standard time can be sent from the plug-in module to the power distribution device in real time. Optionally, the communication module is adjacent to or separated from the power distribution device within 1 meter. Of course, this value is only an example, and the present application is not limited thereto.

It can be seen from the above technical solutions that the plug-in module provided by this embodiment includes a Beidou/GPS dual-mode positioning module and a communication module. Send it to the power distribution device through the communication module, so that the power distribution device can perform time synchronization. Compared with the time synchronization method of the existing main station, the external module in this embodiment receives the standard time sent by the Beidou/GPS satellite, which is more accurate than the own time sent by the main station, and the distance between the external module and the power distribution device is In the plug-in form, the distance between the two is shorter, and the transmission distance of the standard time is shorter, so errors caused by long-distance transmission can be avoided. In addition, this embodiment is the standard time for receiving satellite transmissions, and satellite communications are more stable and timely than network cables. Therefore, the plug-in module of this embodiment can ensure the accuracy of time synchronization of the power distribution device.

Specifically, in the prior art, the power distribution master station sends its own time to the power distribution device for time synchronization, but the time of the power distribution master station itself cannot be guaranteed to be an accurate standard time. In addition, the power distribution master station broadcasts to each power distribution device through the network cable, and there will be delays and jitters during the broadcasting process. Moreover, the power distribution master station is usually set in the control center, and each power distribution device is set at various positions on the power line, and the distance between the two is relatively long. Therefore, the time synchronization method of the power distribution master station is not accurate enough.

In practical applications, the power distribution system may include multiple power distribution devices, and there are many types of power distribution devices and their distribution locations are scattered. In order to locate the exact position of each power distribution device, the Beidou/GPS dual-mode positioning module 2 can also obtain its own geographical coordinates from Beidou/GPS satellites. Since the positioning module 2 is relatively close to the power distribution device, it can locate The geographic coordinates of the module 2 are used as the geographic coordinates of the power distribution device to realize the positioning of the power distribution device.

Specifically, the Beidou/GPS dual-mode positioning module 2 acquires its own geographic coordinates from Beidou/GPS satellites, where the geographic coordinates may be latitude and longitude values. The Beidou/GPS dual-mode positioning module 2 sends the geographic coordinates to the power distribution device. After receiving the geographic coordinates, the power distribution device can send the geographic coordinates to the power distribution master station, and the power distribution master station can determine the specific geographic location of the power distribution device.

Referring to FIG. 2 , it shows the structure of Embodiment 2 of the plug-in module of the power distribution device provided by the present application. As shown in FIG. 2 , the plug-in module may further include a display screen 4 on the basis of the first embodiment above.

The display screen 4 is used to display the geographic coordinates obtained by the external module from Beidou/GPS satellites. Optionally, the plug-in module can also obtain the type and quantity information of the Beidou/GPS satellites, and display the type and quantity of Beidou/GPS satellites on the display screen for users to view. Optionally, the display screen is a 2.4-inch LED display screen. Certainly, the size and type of the display screen may not be limited thereto.

In order to ensure the normal display of the display screen 4, a display screen drive circuit is arranged in the plug-in module. Among them, the display driver circuit can choose MEGA48 chip, which is connected to the positioning module through the serial port.

The communication module may specifically include one or more of a micropower wireless module, a Wi-Fi module, an Ethernet module, and a serial port module. As shown in FIG. 2 , optionally, the communication module includes a micro-power wireless module 21 , a Wi-Fi module 22 , an Ethernet module 23 and a serial port module 24 . In this way, the plug-in module can adapt to power distribution and consumption devices with different communication interfaces, and the applicability of the plug-in module is wider. It should be noted that although there are four kinds of communication modules in FIG. 2 , the four kinds do not work at the same time, but any one of them is selected to communicate with the power distribution device.

The micro-power wireless module 21 specifically includes a micro-power wireless antenna and a wireless sensor network sub-module. Among them, the micro-power wireless antenna is arranged outside the housing for transmitting micro-power wireless signals; the wireless sensor network sub-module is used for converting the standard time sent by the positioning module into micro-power wireless signals that can be transmitted by the micro-power wireless antenna. Optionally, the micro-power wireless module 21 is specifically a JZ896A micro-power ad hoc network node wireless data transmission module, and the interface methods include TTL, RS-232, and RS-485.

The Wi-Fi module 22 may specifically be an RS9110 module, and is connected to the positioning module through the SPI bus. The Wi-Fi module 22 includes a Wi-Fi antenna arranged outside the casing to realize signal transmission.

The Ethernet module 23, which can be specifically a Realtek RTL8139D chip, is connected to the positioning module through a GPIO port. The Ethernet module 23 has an Ethernet interface. In addition to realizing the function of data communication, the Ethernet interface can also be used as a power supply interface of the external module.

The serial port module 24 includes a serial port interface and a serial port drive circuit. Wherein, the serial port interface is such as RS232 interface or RS485 interface, and correspondingly, the serial port driving circuit is RS232 driving circuit or RS485 driving circuit. The RS232 drive circuit is a drive circuit that converts the TTL level circuit into RS485, and the MAX232 chip can be selected specifically. The RS485 drive circuit is a drive circuit that converts the TTL level circuit into RS232, and the MAX485 chip can be selected specifically.

The plug-in module can also be provided with a USB module. Specifically, the USB module includes a USB drive circuit and a USB interface. Utilizing the USB module can not only transmit data with the external storage device, but also can be used as a charging interface for the external module. In addition, the USB module may also be provided with an indicator light for displaying the working state of the USB module.

The plug-in module has a power port, so that it can be connected to an external power supply for power supply. The power supply voltage can be +5V, and the power port can be double-pin. The power port can be provided with a corresponding power indicator light, and when the external power supply supplies power to the external module through the power port, the power indicator light can be turned on.

In order to display the working status of each communication module, an interface indicator light can also be provided. Specifically, as shown in FIG. 2 , the plug-in module includes one or more of a micropower wireless module indicator light 10 , a Wi-Fi module indicator light 20 , an Ethernet module indicator light 30 and a serial port module indicator light 40 . Each indicator light is connected to the corresponding interface module respectively, and when the interface module transmits data, the corresponding interface indicator light is turned on. For example, the micropower wireless indicator shows the working status of the micropower wireless module, the WiFi module indicator shows the Wi-Fi module working status, the Ethernet module indicator shows the Ethernet module working status, and the serial port module indicator shows the serial port module working status.

In addition, in order to display the working status of sending and receiving data by the plug-in module, the plug-in module can be respectively provided with a sending signal indicator light and a receiving signal indicator light. It should be noted that the data can refer to the standard time, and of course, it can also be any other communication data between the external device and the plug-in module. For example, when using the configuration device to configure the working parameters of the plug-in module, the data refers to is configuration data. The description of the sending signal indicator and the receiving signal indicator is as follows.

Specifically, the Beidou/GPS dual-mode positioning module is also used to send the first lighting signal to the receiving signal indicator light when receiving the standard time sent by the Beidou/GPS satellite; the communication module is also used to send the standard time to When the power distribution device is sending, it sends a second lighting signal to the sending signal indicator light.

Correspondingly, the receiving signal indicator light is configured to trigger light emission in response to the first lighting signal; the sending signal indicator light is configured to trigger light emission in response to the second lighting signal.

Referring to FIG. 3 , the present application also provides the structure of an embodiment of the power distribution equipment. As shown in FIG. 3 , it specifically includes a power distribution device 31 and an external module 32 . in:

The plug-in module 32 is connected with the power distribution device 31 and is used to receive the standard time sent by the Beidou/GPS satellite according to a preset frequency, and send the standard time to the power distribution device 31 .

The power distribution device 31 is configured to receive the standard time and set its own time as the standard time.

Specifically, the distance between the plug-in module 32 and the power distribution device 31 is relatively short, and the connection method between the two may be an Ethernet connection, a Wi-Fi connection, a serial port connection or a micro-power wireless connection. The plug-in module 32 continuously receives the standard time sent by the Beidou/GPS satellite according to the preset frequency, and sends the standard time to the power distribution device 31 . The power distribution device 31 can receive the standard time, and set its own time parameter as the standard time.

In addition, the plug-in module 32 can also obtain the geographic coordinates of the plug-in module from Beidou/GPS satellites, such as longitude and latitude values, and send the geographic coordinates of the plug-in module 32 to the power distribution master station through the power distribution device. The master can save this geographical coordinate. It should be noted that the power distribution device also needs to send its own terminal identification to the power distribution master station. To put it simply, the geographic coordinates of the plug-in module are used as the geographic coordinates of the power distribution and consumption device. Using the geographic coordinates, the power distribution master station can determine the location of the power distribution and consumption device.

Certainly, the plug-in module 32 may also be various other types of plug-in modules provided in the above application.

Referring to Fig. 4, the present application also provides the structure of an embodiment of the power distribution system. As shown in Figure 4, the embodiment of the power distribution system specifically includes: a power distribution master station 41, a number of power distribution devices 42, and an equal number of plug-in modules 43 to the power distribution devices; wherein: each The above-mentioned electrical device 42 is connected to each of the external modules 43 one by one; wherein:

The plug-in module 43 is used to receive the standard time sent by the Beidou/GPS satellite according to the preset frequency, and send the standard time to the power distribution device.

Wherein, the description about the plug-in module 43 can refer to the above, and will not be repeated here.

The power distribution device 42 is connected to the power distribution master station 41, and is used for receiving the standard time sent by the plug-in module 43, and setting its own time as the standard time.

Wherein, the power distribution device 42 is provided with a main control chip, which can complete the processing of different data of the entire power distribution device. For example, the main control chip sets its own time as the standard time sent by the plug-in module, or sets its own time as the time sent by the power distribution master station. In another example, after setting the standard time, the main control chip controls the power distribution and consumption device to communicate with the power distribution and consumption master station for power consumption data. It should be noted that the communication of power consumption data is based on standard time, for example, the power consumption data may be encrypted data encrypted by standard time, password data generated by standard time, electronic authentication data generated by standard time, etc.

The power distribution master station 41 is used to communicate power data with the power distribution device 42, and when the plug-in module 43 generates a fault signal, send the master station time to the power distribution device 42 , so as to trigger the power distribution device 42 to set its own time as the master station time.

Specifically, the power distribution master station 41 is the core layer in the entire power distribution system structure, responsible for the storage and processing of power data, and when the plug-in module fails, it sends the time to each power distribution device by broadcasting. data for time synchronization of power distribution devices.

The manner in which the power distribution master station 41 is connected to the power distribution device 42 may be through a communication network system. The communication network system is the carrier and medium of data transmission in the entire power distribution system. Generally, it connects the upper-level power distribution master station and the lower-level power distribution device through wired methods, and carries data backhaul and broadcast timing of power distribution devices. .

Referring to FIG. 5 , the present application provides the structure of another embodiment of the power distribution system. As shown in FIG. 5 , the power distribution system further includes a mobile terminal 44 on the basis of FIG. 4 .

It should be noted that, on the basis of the plug-in module 43 shown in FIG. 4, the plug-in module 43 in FIG. The above distribution electrical device is sent. On the basis of the power distribution device 42 shown in FIG. 4 , the power distribution device 42 in FIG. 5 is also configured to send its own terminal identification and the geographical coordinates to the power distribution master station. Based on the power distribution master station 41 shown in FIG. 4 , the power distribution master station 41 in FIG. 5 is also configured to correspondingly store the terminal identifier and the geographic coordinates.

Correspondingly, the mobile terminal 44 is configured to obtain each of the terminal identifiers and the geographic coordinates corresponding to each of the terminal identifiers from the power distribution master station 41, and to determine the location of each of the geographic coordinates in the map application. , display the terminal identification corresponding to each of the geographic coordinates.

Therefore, the geographical coordinates of each power distribution device 42 can be displayed in the power distribution master station 41 for monitoring personnel in the power distribution master station to monitor the geographic location of each power distribution device 42 . In addition, the inspectors hold the mobile terminal 44 and can locate the geographic location of the power distribution device 42, making it more convenient to locate and search for the power distribution device.

It should be noted that each embodiment in this specification is described in a progressive manner, and each embodiment focuses on the differences from other embodiments. For the same and similar parts in each embodiment, refer to each other, that is, Can.

It should also be noted that in this article, relational terms such as first and second etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply that these entities or operations Any such actual relationship or order exists between. Furthermore, the term "comprises", "comprises" or any other variation thereof is intended to cover a non-exclusive inclusion such that a process, method, article or apparatus comprising a set of elements includes not only those elements, but also includes elements not expressly listed. other elements of or also include elements inherent in such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising a" does not preclude the presence of additional same elements in a process, method, article or apparatus comprising the aforementioned element.

The above description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the application. Therefore, the present application will not be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims (10)

1. A plug-in module for a power distribution device, comprising: a housing, a Beidou/GPS dual-mode positioning module and a communication module; wherein: The Beidou/GPS dual-mode positioning module is arranged in the housing, and is used to receive the standard time sent by the Beidou/GPS satellite according to the preset frequency, and send the standard time to the communication module; The communication module is set in the housing and is used to send the standard time to the power distribution device; wherein, the standard time is used by the power distribution device to set its own time as the the standard time mentioned above. 2. The plug-in module of the power distribution device according to claim 1, wherein the Beidou/GPS dual-mode positioning module is also used to obtain its own geographic coordinates from the Beidou/GPS satellites, and The geographic coordinates are sent to the power distribution device; wherein, the geographic coordinates are used to trigger the power distribution device to send the geographic coordinates to the power distribution master station. 3. The plug-in module of the power distribution device according to claim 2, further comprising: a display screen for displaying the geographic coordinates. 4. The plug-in module of the power distribution device according to claim 1, wherein the communication module comprises: one or more of a micro-power wireless module, a Wi-Fi module, an Ethernet module, and a serial port module . 5. The plug-in module of the power distribution device according to claim 4, characterized in that, it also includes: the indicator light of the micro-power wireless module, the indicator light of the Wi-Fi module, the indicator light of the Ethernet module and the indicator light of the serial port module one or more. 6. The plug-in module of the power distribution device according to claim 1, characterized in that, The Beidou/GPS dual-mode positioning module is also used to send the first lighting signal to the receiving signal indicator light when receiving the standard time sent by the Beidou/GPS satellite; The communication module is further configured to send a second lighting signal to the sending signal indicator light when sending the standard time to the power distribution device; Correspondingly, the plug-in module also includes: a receiving signal indicator light and a sending signal indicator light; wherein: The receiving signal indicator light is configured to trigger light emission in response to the first lighting signal; The sending signal indicator light is configured to trigger light emission in response to the second lighting signal. 7. A power distribution device, characterized in that it includes: a power distribution device and an external module; wherein: The plug-in module is connected to the power distribution device, and is used to receive the standard time sent by the Beidou/GPS satellite according to the preset frequency, and send the standard time to the power distribution device; The power distribution device is configured to receive the standard time and set its own time as the standard time. 8. The power distribution equipment according to claim 7, characterized in that, The plug-in module is also used to obtain its own geographic coordinates from the Beidou/GPS satellite, and send the geographic coordinates to the power distribution device; The power distribution device is further configured to send its own terminal identification and the geographical coordinates to the power distribution master station, so as to trigger the power distribution master station to store the terminal identification and the geographical coordinates. 9. A power distribution system, characterized in that it includes: a power distribution master station, several power distribution devices, and a number of external modules equal to the power distribution devices; wherein: each of the power distribution devices The device is connected to each of the external modules one by one; The plug-in module is used to receive the standard time sent by the Beidou/GPS satellite according to the preset frequency, and send the standard time to the power distribution device; The power distribution device is connected to the power distribution master station, and is used to receive the standard time and set its own time as the standard time; The power distribution master station is used to communicate power data with the power distribution device, and when the plug-in module generates a fault signal, send the master station time to the power distribution device to trigger the The said distributed electrical device sets its own time as the time of the master station. 10. The power distribution system according to claim 9, characterized in that, The plug-in module is also used to obtain its own geographic coordinates from the Beidou/GPS satellite, and send the geographic coordinates to the power distribution device; The power distribution device is also used to send its own terminal identification and the geographic coordinates to the power distribution master station; The power distribution master station is also used to correspondingly save the terminal identification and the geographic coordinates; Correspondingly, the power distribution system also includes: a mobile terminal; wherein: The mobile terminal is configured to obtain each of the terminal identifiers and the geographic coordinates corresponding to each of the terminal identifiers from the power distribution master station, and display each of the terminal identifiers at the positions determined by each of the geographic coordinates in the map application. The terminal identifier corresponding to the above geographic coordinates.