CN217240405U

CN217240405U - Centralized station terminal

Info

Publication number: CN217240405U
Application number: CN202220889086.8U
Authority: CN
Inventors: 李明; 张华�; 高志勇; 陈云国; 杨在然; 夏文杰; 任宝军; 陈康超; 李兆拓; 戴翔; 孟鼎铭; 方鹏
Original assignee: Nanjing SAC Automation Co Ltd
Current assignee: Nanjing SAC Automation Co Ltd
Priority date: 2022-04-15
Filing date: 2022-04-15
Publication date: 2022-08-19
Anticipated expiration: 2032-04-15

Abstract

The utility model discloses a centralized station terminal, including quick-witted case, public nuclear core plate, data processing nuclear core plate, data acquisition board and display panel, quick-witted incasement is fixed with public nuclear core plate, data processing nuclear core plate and data acquisition board, and public nuclear core plate and data processing nuclear core plate communication connection, data processing nuclear core plate and data acquisition board communication connection, public nuclear core plate and display panel communication connection. The utility model discloses a centralized station terminal, which has a RS232/485 serial port, Bluetooth and a wireless multifunctional communication mode; the structure adopts a double-CPU processing mode, and the system has strong data processing capacity and communication capacity; the socket that the data acquisition board set up has effectively solved the chaotic mistake of alternating current volume collection return circuit pencil, has increased and reduced the difficult scheduling problem of replacement.

Description

Centralized station terminal

Technical Field

The utility model relates to a centralized station terminal belongs to distribution automation technical field.

Background

With the increase of the number of power distribution terminal equipment, the terminals of the traditional station have more disordered wiring, the inconvenient field replacement is always a difficult problem which troubles the operation and maintenance of electric power, and the convenient maintenance is more and more important.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the technical problem that the problems of difficult replacement of field devices, more expanded interval wiring, complex troubleshooting problems, high operation and maintenance cost and the like are solved, and a centralized station terminal is provided, which is based on an independently operated double-CPU core board framework, provides a communication module interface, a micro-power wireless interface and a data acquisition aerial plug interface, and has the characteristics of less wiring harness, strong adaptability, strong communication function and simple operation and maintenance; the extensible data acquisition board and the reserved aerial plug interface can realize rapid increase and decrease of the number of data acquisition intervals.

In order to achieve the purpose, the utility model provides a centralized station terminal, including quick-witted case, public nuclear core plate, data processing nuclear core plate, data acquisition board and display panel, quick-witted incasement is fixed with public nuclear core plate, data processing nuclear core plate and data acquisition board, and public nuclear core plate and data processing nuclear core plate communication connection, data processing nuclear core plate and data acquisition board communication connection, public nuclear core plate and display panel communication connection.

Preferably, the case is provided with a wireless communication module socket, a micropower wireless module socket and a data acquisition aerial socket.

Preferably, the public core board and the data processing core board operate independently of each other, and data interaction is performed in an IEC104 protocol mode.

Preferentially, the system comprises an alternating current acquisition chip and a first UART port, and the data acquisition board is connected with the data processing core board through the alternating current acquisition chip and the first UART port.

Preferably, the common core board is externally provided with an Ethernet port, a reusable 485/232 serial port, a 232 serial debugging port, a dial switch, a wireless communication module socket and a micropower wireless module socket.

Preferably, the data acquisition board is externally provided with an aerial socket.

Preferentially, the system comprises a metering and collecting chip, and the public core board is communicated and interacted with the metering and collecting chip through SPI communication.

Preferably, the system comprises a micro-power wireless module socket, and the micro-power wireless module socket is arranged on the public core board and used for connecting equipment in the power distribution station.

Preferably, a second UART port is included, and the common core board is connected to the display panel through the second UART port.

Preferentially, the wireless communication module socket is included, the wireless communication module socket is installed on the public core board and used for being connected with the wireless communication module, and full-network multi-band wireless communication with a power distribution master station is achieved.

The utility model discloses the beneficial effect who reaches:

the utility model provides a pair of centralized station terminal has reserved data acquisition and has inserted interface configuration, wireless communication module interface configuration and micropower wireless module interface configuration by plane, effectively reduces the wiring, realizes the simple convenient effect of fortune dimension. On the basis of a traditional station terminal, a display panel is additionally arranged on the centralized station terminal, so that the human-computer interaction experience is effectively enhanced, and convenience is provided for on-site operation and maintenance. In terms of architecture, the terminal of the centralized station uses mutually independent double CPU core boards, and has strong data operation capability and function expansion capability.

Drawings

Fig. 1 is a schematic block diagram of the present invention.

Detailed Description

The following examples are only used to illustrate the technical solutions of the present invention more clearly, and the protection scope of the present invention is not limited thereby.

It should be noted that, if there is a directional indication (such as up, down, left, right, front, and back) in the embodiment of the present invention, it is only used to explain the relative position relationship between the components, the motion situation, etc. in a certain specific posture, and if the specific posture is changed, the directional indication is changed accordingly.

Example one

The utility model provides a centralized station terminal, includes nuclear core plate, data processing nuclear core plate and data acquisition board, and quick-witted case outside reservation has wireless communication module socket, micropower wireless module socket and data acquisition to insert the socket by plane, display panel includes pilot lamp, liquid crystal display and keyboard.

The public core board is mainly used for external communication, and the data processing core board is used for data processing with functions of remote signaling, remote measurement, remote control, fault identification and feeder automation.

Further, in this embodiment, the common core board and the data processing core board operate independently from each other, and perform data interaction in an IEC104 protocol manner.

Further, the data acquisition board is connected to the data processing core board through the first UART port after being processed by the alternating current acquisition chip, and remote signaling, remote measuring and remote control data information are interacted in real time.

Further, the public core board in this embodiment has a bluetooth function, and its peripheral includes 5 ethernet ports, 4 multiplexing 485/232 serial ports, 1 way 232 serial debug port, 1 dial-up switch, 1 wireless communication module socket and 1 micropower wireless module socket.

Each data acquisition board is equipped with 1 group and inserts the socket by plane.

Further, the embodiment includes a metering acquisition chip, the public core board interacts data with the metering acquisition chip through SPI communication, and processes metering related data;

the related metering data comprises forward active electric energy, forward reactive electric energy, reverse active electric energy, reverse reactive electric energy, daily freezing quantity, monthly freezing quantity, tidal current freezing quantity, electric energy distortion rate and the like.

Further, in this embodiment, the common core board is connected to the display panel through a second UART port, and is used for data interaction between the fault indication information and the operation and maintenance information, driving the indicator lamp to light up, displaying on the liquid crystal display, and responding to the key instruction;

the fault indication information comprises an accident alarm, a protection action, a device running state and a switch on-off state;

the operation and maintenance information data comprises fixed value parameter modification, traffic flow data viewing, local control output and terminal information;

the key commands include local operation of the LCD menu, including only F1, F2, up, down, left and right keys.

Further, the wireless communication module socket is arranged in the embodiment, and the public core board is provided with the wireless communication module socket for connecting the wireless communication module and realizing the full-network multi-band wireless communication with the power distribution master station.

The public nuclear core board is provided with 1 micropower wireless module socket and can be connected with equipment in a power distribution station, so that the whole scene data monitoring of the power distribution station is realized.

The data processing core board is connected with the data acquisition boards through the communication board to acquire and process externally acquired data; the data processing core board is connected with the public core board for information interaction. Outside the device case shell, the wireless communication module socket and the micropower wireless module are connected with a public core board, and the data acquisition board is provided with a 26-core data acquisition aerial plug. The indicator light part, the liquid crystal display part and the operation key part of the display panel are connected with the public core board, so that man-machine interactive experience is realized.

The data acquisition board is used for acquiring voltage and current analog quantity and on-off state and opening and closing instructions and supporting a hot plug function.

The data processing core board analyzes the voltage and current and the on-off state data acquired by the data acquisition board, judges the line running state and the fault information, timely performs protection action outlet response, and further pushes the protection action data to the public core board through a network 104 protocol.

And the public core board receives the master station side remote control instruction and the fixed value modification, forwards the remote control instruction and the fixed value modification to the data processing core board, and further responds to a master station remote control command.

The public core board is connected with the metering acquisition chip through a UART port, acquires real-time metering data in an SPI communication mode and processes power distribution related electric energy data in real time.

And when the history file is updated by the data processing core board, actively sending a remote signal for generating a file mark, and then calling the history file from the data processing core board by the public core board.

The micropower wireless module socket, the wireless communication module socket, the second UART port, the measurement acquisition chip, the core board, the data processing core board, the data acquisition board, the alternating current acquisition chip, the first UART port, the Ethernet port, the reusable 485/232 serial port, the 232 serial debugging port, the dial switch, the wireless communication module socket and the micropower wireless module socket are various in models which can be adopted in the prior art, and a person skilled in the art can select a proper model according to actual requirements.

Example two

As shown in fig. 1, the utility model relates to a centralized station terminal, including 4U shell machine case, display panel and functional plug-in components of moulding. The functional plug-in comprises a public core board, a data processing core board, a data acquisition board and an expansion communication board, and the functional plug-in is sequentially connected, fixed inside the 4U plastic case and connected with the display panel at the front part of the 4U plastic case.

The data processing core board, the expansion communication board and the electric energy acquisition chip are all arranged at the back of the 4U plastic case, the data acquisition board is inserted into the expansion communication board, and the public core board is arranged in the middle of the 4U plastic case in an overhead mode and connected through a flexible flat cable. Effectively utilize limited space to reach the function universalization, can improve on-the-spot suitability and flexibility through freely increasing and decreasing data acquisition board.

And the power supplies of the terminal of the centralized station and the control loop of the data acquisition board are provided by an external power supply module.

The data processing core board interacts data with the data acquisition board through SPI communication, and then realizes real-time monitoring and protection control on the running state of the power distribution equipment through data processing and fault identification. The data processing core board independently processes the sampling data and the protection function, so that the reaction speed and accuracy of the instantaneous data are improved, and the risk of unstable operation caused by other functions is reduced.

The public core board is connected with the data processing core board through a network cable, the data processing core board carries out data processing on the data acquisition chip and then rapidly pushes real-time data such as on-off position state, fault information and alternating current sampling through 104 protocols, and the control command from the public core board is rapidly responded. The network communication ensures the independence of the operation of the double core boards and also meets the requirement of rapid real-time data sharing.

The UART serial port of the public core board is connected to a metering acquisition chip data interface of the back board through a flat cable, metering data are obtained through SPI communication, and calculation processing is carried out. Compared with a traditional station terminal, the integrated calculation mode of protection and measurement is adopted, the centralized station terminal uses an independent metering chip for calculation, the accuracy of the public core board for acquiring metering data is guaranteed through high-speed SPI communication, and the influence on the acquisition of the protection quantity is reduced.

The display panel is connected with the UART serial port of the public core board, the running state of the device is displayed in real time, the keyboard operation instruction is responded, operation and maintenance personnel can observe the running state of the power distribution equipment on the spot and can apply the instruction on the spot, the human-computer interaction experience of the operation and maintenance personnel on the spot is enhanced, and convenience is brought to the operation and maintenance on the spot.

The public core board is provided with 5 Ethernet ports, so that data acquisition of the data core board can be realized, and the external connection can be used for various network communication scenes. 4 485/232 multiplexing serial ports are arranged outside the public core board and used for flexibly accessing low-voltage equipment for serial port communication in a power distribution room; and the 1 232 serial debugging port is used for on-site operation and maintenance debugging of the terminal. The wireless communication module socket is reserved on the public core board, and communication connection can be quickly established with a power distribution main station. A micropower wireless module is reserved on the public core board, and a large amount of distribution equipment data in the distribution lines are effectively accessed. The terminal of the centralized station can be accessed to various auxiliary devices of the power distribution room, and a large amount of data can monitor and control the running state of the whole power distribution room.

The terminal of the centralized station supports 7 block data acquisition boards to the maximum extent, a 26-core navigation socket is reserved on each data acquisition board, 9 switch on-off contacts, 2 switch off outlets and 4 alternating current flows can be accessed, and all electrical quantities of a group of feeder line switching equipment can be acquired completely. The data acquisition boards can be flexibly configured according to different fields, so that the later stage is facilitated to increase the switching equipment, and the workload of newly added circuits is effectively reduced.

The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of modifications and variations can be made without departing from the technical principle of the present invention, and these modifications and variations should also be considered as the protection scope of the present invention.

Claims

1. The utility model provides a centralized station terminal, its characterized in that includes quick-witted case, public nuclear core plate, data processing nuclear core plate, data acquisition board and display panel, the quick-witted incasement is fixed with public nuclear core plate, data processing nuclear core plate and data acquisition board, and public nuclear core plate and data processing nuclear core plate communication connection, data processing nuclear core plate and data acquisition board communication connection, public nuclear core plate and display panel communication connection.

2. The centralized station terminal of claim 1, wherein the chassis is provided with a wireless communication module socket, a micropower wireless module socket and a data collection aerial socket.

3. The centralized station terminal of claim 1, wherein the common core board and the data processing core board operate independently of each other to interact with data according to IEC104 protocol.

4. The centralized station terminal of claim 1, comprising an ac acquisition chip and a first UART port, wherein the data acquisition board is connected to the data processing core board via the ac acquisition chip and the first UART port.

5. The centralized station terminal of claim 1, wherein the common core board peripheral ethernet port, the reusable 485/232 serial port, the 232 serial debug port, the dial-up switch, the wireless communication module jack, and the micropower wireless module jack.

6. The centralized station terminal of claim 1, wherein the data acquisition board is externally provided with an aerial socket.

7. The centralized substation terminal of claim 1, comprising a metering and collecting chip, wherein the common core board is communicatively interactive with the metering and collecting chip through SPI communication.

8. The centralized station terminal of claim 1, comprising a micro-power wireless module jack disposed on the common core board for connecting to devices in the distribution substation.

9. The centralized station terminal of claim 1, comprising a second UART port, wherein the common core board is coupled to the display panel through the second UART port.

10. The centralized substation terminal as claimed in claim 9, comprising a wireless communication module socket, wherein the wireless communication module socket is installed on the common core board for connecting the wireless communication module, so as to implement multi-band wireless communication with the distribution master station.