CN216599656U - Communication gateway machine of low-current grounding line selection device - Google Patents

Abstract

The utility model discloses a communication gateway machine of a low-current grounding line selection device, which comprises a processor, a network port, a data storage unit and a power module, wherein the network port comprises a network transformer, a network card chip and a network card interface, the network card interface comprises a first network card interface and a second network card interface, the network transformer comprises a first network transformer and a second network transformer, the processor is used for connecting the network card chip, the network card chip is respectively connected with the first network transformer and the second network transformer, the first network transformer is connected with the first network card interface, the first network card interface is used for communicating with the low-current grounding line selection device, and the second network card interface is used for communicating with a grounding distribution network fault analysis master station; the data storage unit is connected with the processor and used for storing local data; the input end of the power supply module is connected to a power supply through a transformer, and the power supply output end of the power supply module is connected with the processor.

Description

Communication gateway machine of low-current grounding line selection device

Technical Field

The utility model relates to the field of power grid data acquisition, in particular to a data acquisition gateway machine of a low-current grounding line selection device.

Background

The line selection accuracy of the existing low-current grounding line selection device of the transformer substation cannot be 100% correct. Multidimensional fault analysis and security policy research are lacking. The evaluation of the action is insufficient, the action accuracy is counted, and a set of scientific standard and automatic means is not provided. The capability of fault recording and fault inversion is lacking. Due to the defects of the low-current grounding line selection device, the operating data of the low-current grounding line selection device needs to be stored for data support for subsequent analysis, and the low-current grounding line selection device in the prior art cannot record data, so that the data support for the subsequent analysis cannot be realized, and a new network shutdown machine needs to be designed to obtain the operating data of the low-current grounding line selection device.

SUMMERY OF THE UTILITY MODEL

The utility model aims to overcome the defects of the prior art, designs a communication gateway machine of a low-current grounding line selection device, and provides a function of collecting operation data of the low-current grounding line selection device. And data support is provided for the power distribution network ground fault analysis master station to develop fault analysis, safety strategy research and the constant value setting function of the low-current ground line selection device.

In order to achieve the purpose, the utility model adopts the technical scheme that: a communication gateway machine of a low-current grounding line selection device comprises a processor, a network interface, a data storage unit and a power module, wherein the network interface comprises a network transformer, a network card chip and a network card interface, the network card interface comprises a first network card interface and a second network card interface, the network transformer comprises a first network transformer and a second network transformer, the processor is used for connecting the network card chip, the network card chip is respectively connected with the first network transformer and the second network transformer, the first network transformer is connected with the first network card interface, the first network card interface is communicated with the low-current grounding line selection device through language, and the second network card interface is used for being communicated with a power distribution network grounding fault analysis main station; the data storage unit is connected with the processor and used for storing local data; the input end of the power supply module is connected to a power supply through a transformer, and the power supply output end of the power supply module is connected with the processor.

The internet protocol shutdown machine further comprises an IRIG-B interface, the input end of the processor is connected with an AD sampling chip, the AD sampling chip is connected with a level conversion chip, the level conversion chip is connected with a photoelectric coupler, the photoelectric coupler is connected with the IRIG-B interface, the IRIG-B interface is used for being connected with a GPS time synchronization device and used for acquiring a time synchronization signal of the GPS device, and the GPS time synchronization device receives the time synchronization of a GPS satellite. The processor is connected with the display screen and used for displaying the collected operation data of the low-current grounding line selection device.

The processor is implemented using a mega-chip KX-6640MA chip.

The utility model has the advantages that: the data recording and monitoring function can be provided for the operation of the low-current grounding line selection device, and data support is provided for the safe operation and theoretical analysis of a power grid; the network shutdown device has simple and reliable structure, convenient realization and low cost; the operation data of the low-current grounding line selection device can be acquired through the network shutdown device, and data support is provided for a power distribution network grounding fault analysis master station to carry out fault analysis, safety strategy research and the constant value setting function of the low-current grounding line selection device; data monitoring can be achieved, and support data are provided for analyzing the operation state of the power grid; whether the operation of the low-current grounding line selection device in the power grid is in fault or not can be verified through data, and researchers can judge whether the line selection of the low-current grounding line selection device is in fault or not according to the data;

drawings

The contents of the expressions in the various figures of the present specification and the labels in the figures are briefly described as follows:

fig. 1 is a schematic diagram of the network shutdown device according to the present invention.

Detailed Description

The following description of preferred embodiments of the utility model will be made in further detail with reference to the accompanying drawings.

The low-current grounding line selection device communication gateway machine provided by the application provides a function of collecting operation data of the low-current grounding line selection device. And data support is provided for the power distribution network ground fault analysis master station to develop fault analysis, safety strategy research and the constant value setting function of the low-current ground line selection device.

As shown in fig. 1, a communication gateway of a low-current grounding line selection device comprises a processor, a network port, a data storage unit and a power module, wherein the network port comprises a network transformer, a network card chip and a network card interface, the network card interface comprises a first network card interface and a second network card interface, and the network transformer comprises a first network transformer and a second network transformer;

the connection relationship is as follows: the processor is used for connecting a network card chip, the network card chip is respectively connected with a first network transformer and a second network transformer, the first network transformer is connected with a first network card interface, the first network card interface is used for communicating with the low-current grounding line selection device, and the second network card interface is used for communicating with the power distribution network grounding fault analysis master station;

the processor adopts a megachip KX-6640MA chip to realize the data processing and control functions of the application, and the network card chip adopts a commonly used network card chip in the prior art to realize the data conversion and communication. The network transformer selects Mentech H2052DG, and the network card interface is mainly used for matching the interface of the connected equipment to realize the purpose of data communication connection. In the actual working process, when the low-current grounding line selection device is connected with the first network card interface, working data of the low-current grounding line selection device is collected through the first network card interface, then passes through the first network transformer, then is subjected to data conversion through the network card chip, and then is sent into the processor, the processor processes the data, converts the collected data through the network card chip, and then sends the data to the distribution network grounding fault analysis master station through the second network transformer and the second network card interface, the distribution network grounding fault analysis master station is a server, an upper computer and other devices used for monitoring the data of the distribution network, and can be realized by adopting a common server, a computer and the like, after the data is uploaded to the distribution network grounding fault analysis master station, the analysis processing of the data is realized by the master station (manual analysis and automatic analysis can be automatically processed by a master station monitoring person according to actual requirements), after the data are uploaded, a data base is provided for the realization and analysis of the data.

The system also comprises a data storage module and a power supply module, wherein the data storage unit is connected with the processor and used for storing local data; the input end of the power supply module is connected to a power supply through a transformer, and the power supply output end of the power supply module is connected with the processor. The data storage module adopts a power-down nonvolatile memory and is used for storing the working data of the processor and the acquired data; the power supply module is used for supplying power to the processor, and the power supply (a storage battery, a power grid and the like) performs voltage conversion through the transformer, processes and manages the voltage through the power supply management chip and outputs the voltage required by the operation of the processor.

The internet protocol shutdown machine further comprises an IRIG-B interface, the input end of the processor is connected with an AD sampling chip, the AD sampling chip is connected with the level conversion chip, the level conversion chip is connected with a photoelectric coupler, the photoelectric coupler is connected with the IRIG-B interface, the IRIG-B interface is used for being connected with a GPS time synchronization device and used for acquiring a time synchronization signal of the GPS device, and the GPS time synchronization device receives the time synchronization of a GPS satellite. This application is in order to guarantee the data and the clock phase-match of gathering, gathers GPS to the time data of system, gathers GPS device to the time data when gathering undercurrent ground connection route selection device's operational data like this to it is corresponding to have guaranteed that the data of gathering are with the time, for the clock basis that the analysis of data provided, makes things convenient for subsequent analysis work. The IRIG-B interface is used for being connected with a GPS time synchronization system, isolating through the optical coupling isolator, transmitting data to the processor after level conversion and AD sampling, and transmitting time data and collected operation data to the power distribution network ground fault analysis main station through the processor, so that the purpose of collecting and uploading the data is completed. The IRIG-B time setting interface is connected with the GPS time setting device, the B code time setting function is realized, the special network shutdown device is communicated with the low-current grounding line selection device, and data in devices such as wave recording signals, action event reports, four-remote information acquisition and the like can be completed.

In the application, the network card interface and the low-current grounding line selection device communicate by adopting a DLT860 protocol. The network card interface communicates with the distribution network ground fault analysis master station by adopting a DLT860 protocol. Thereby realizing the communication and uploading of data. And IRIG-B is connected with the photoelectric coupler, the level conversion chip and the AD sampling chip in sequence. The processor selects megacore KX-6640 MA. The network transformer is Mentech H2052 DG. The data storage unit adopts a double denier micro FM25G 01B. The power management module is selected from Jinsheng Yang LH20-10B 05. The processor is connected with the IRIGB sequentially through the AD sampling chip, the level conversion chip and the photoelectric coupler, and the photoelectric coupler is adopted for communication between the processor and the IRIGB, so that the IRIGB and the processor are higher in anti-interference capacity, and the stability of local network shutdown is guaranteed.

In a preferred embodiment, the gateway machine may be provided with a display screen for displaying the acquired data information in real time, so that monitoring personnel can conveniently check the acquired data information at any time during acquisition, and the processor is connected with the display screen for displaying the acquired operation data of the low-current grounding line selection device.

In another preferred embodiment, the preferred collection system of this application needs to work with undercurrent ground connection route selection device interlocking, realize the collection data that simultaneous working can be better, as long as undercurrent ground connection route selection device work promptly, the net machine work of this application, in order to realize this purpose, will set up the normally open contact of relay between power management chip and treater, set up the coil of relay on the power supply circuit of undercurrent ground connection route selection device, as long as undercurrent ground connection route selection device power supply circuit switches on work like this, then the coil circular telegram, the normally open contact is closed, the net machine of this application is followed the circular telegram work, thereby realize that the power follows the purpose of power supply work.

It is clear that the specific implementation of the utility model is not restricted to the above-described embodiments, but that various insubstantial modifications of the inventive process concept and technical solutions are within the scope of protection of the utility model.

Claims (3)

1. A small current grounding line selection device communication gateway machine is characterized in that: the network interface comprises a network transformer, a network card chip and a network card interface, wherein the network card interface comprises a first network card interface and a second network card interface, the network transformer comprises a first network transformer and a second network transformer, the processor is used for connecting the network card chip, the network card chip is respectively connected with the first network transformer and the second network transformer, the first network transformer is connected with the first network card interface, the first network card interface is used for communicating with a low-current grounding line selection device, and the second network card interface is used for communicating with a power distribution network grounding fault analysis master station; the data storage unit is connected with the processor and used for storing local data; the input end of the power supply module is connected to a power supply through a transformer, and the power supply output end of the power supply module is connected with the processor; the internet protocol shutdown machine further comprises an IRIG-B interface, the input end of the processor is connected with an AD sampling chip, the AD sampling chip is connected with a level conversion chip, the level conversion chip is connected with a photoelectric coupler, the photoelectric coupler is connected with the IRIG-B interface, the IRIG-B interface is used for being connected with a GPS time synchronization device and used for acquiring a time synchronization signal of the GPS device, and the GPS time synchronization device receives a time synchronization signal of a GPS satellite.

2. The communication gateway of the low-current grounding line selection device as claimed in claim 1, wherein: the processor is connected with the display screen and used for displaying the collected operation data of the low-current grounding line selection device.

3. The communication gateway of the low-current grounding line selection device as claimed in claim 1, wherein: the processor is implemented using a mega-chip KX-6640MA chip.

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