CN209215893U - A kind of ring network cabinet DTU - Google Patents

Abstract

The application discloses a DTU of a ring network cabinet, including: a CPU for processing input data and/or output data of the DTU of a target ring network cabinet to obtain processed data; communicating with the CPU for displaying input data and /or a display screen for outputting data and processing data; a first controller communicating with the CPU for controlling each electrical device in the target ring main unit according to the processing data. Obviously, the DTU in this application can not only enable the staff to view the input data and/or output data and processing data of the DTU through the display screen on the DTU, but also allow the staff to control the DTU through the first controller in the DTU. The electrical equipment in the target ring network cabinet is operated and controlled accordingly, and the faults in the DTU are eliminated in time, thus ensuring the safe and stable operation of the DTU and greatly improving the user experience of the staff when using the DTU.

Description

A ring network cabinet DTU

technical field

The utility model relates to the technical field of electric power communication, in particular to a ring network cabinet DTU.

Background technique

The distribution network automation system is a system that uses computer technology, automatic control technology, electronic technology and communication technology to intelligently monitor the distribution network. With the rapid development of the distribution network automation system, DTU (Data TransferUnit, data transmission unit ) are heavily used. In the distribution network automation system, the main function of the DTU is to transmit the operating data in the ring main unit. In the existing technology, when using the DTU to transmit the operating data in the ring main unit, the staff cannot view the ring network through the DTU The operating data in the network cabinet cannot be used to regulate the electrical equipment in the ring network cabinet through the DTU. Obviously, such a DTU is not conducive to the maintenance and troubleshooting of the ring network cabinet, which greatly reduces the time when the staff uses the DTU. user experience. It can be seen that how to use a better DTU to enable the staff to maintain and troubleshoot the ring main unit in time, so as to improve the user experience of the staff when using the DTU, is an urgent problem to be solved by those skilled in the art.

Utility model content

In view of this, the purpose of this utility model is to provide a ring network cabinet DTU, which can enable the staff to maintain and troubleshoot the ring network cabinet in time, and improve the user experience of the staff when using the DTU. The specific plan is as follows:

A ring network cabinet DTU, comprising:

The CPU used to process the input data and/or output data of the DTU of the target ring main unit to obtain the processed data;

A display screen connected to the CPU for displaying the input data and/or output data and the processed data;

A first controller that is connected to the CPU in communication and is used to control each electrical device in the target ring main unit according to the processing data.

Preferably, the CPU is specifically a ZYNQ chip.

Preferably, the display screen includes:

A human-computer interaction interface for displaying input instructions and/or output instructions of the target ring main unit.

Preferably, the display screen is specifically an integrated touch screen embedded with a Cortex-A8 CPU.

Preferably, the display screen includes:

Target chip used to store MCGS embedded configuration software;

A processor for running the MCGS embedded configuration software.

Preferably, the first controller has a built-in WiFi transceiver.

Preferably, it also includes:

A memory connected to the CPU in communication and used for storing the input data and/or output data and the processing data.

Preferably, it also includes:

A second controller connected in communication with the CPU for collecting the operating data of the target ring main unit and regulating the target ring main unit according to the operating data.

Preferably, the second controller includes:

A telemetry device for collecting the electric quantity and/or non-electric quantity of the target ring main unit;

A remote signaling device for collecting state variables of each electrical equipment in the target ring main unit;

A remote control device for regulating and controlling each electrical device in the target ring main unit according to the electric quantity and/or non-electric quantity and the state variable.

Preferably, the second controller includes:

A serial port-to-GPRS device used for data conversion of the electric quantity and/or non-electric quantity and the state variable.

It can be seen that in the present utility model, at first, a CPU that can process the input data and/or output data of the DTU of the target ring main unit is set in the DTU to obtain the processed data, and then, the DTU is set in the DTU to establish communication with the CPU Connection, used to display the input data and/or output data of the DTU and the display screen of the processed data, and also set up a communication connection with the CPU in the DTU, which is used to control the electrical equipment in the target ring network cabinet according to the processed data. Control the first controller. As a result, the DTU provided by the utility model can not only enable the staff to view the input data and/or output data and processing data of the DTU in real time through the display screen on the DTU, but also enable the staff to pass through the DTU. According to the processing data, the first controller performs corresponding operation and control on each electrical equipment in the target ring network cabinet, and timely eliminates the faults in the DTU, so as to ensure the safe and stable operation of the DTU. This avoids that in the existing technology, the staff cannot view the operation data of the target ring network cabinet through the DTU, cannot regulate each electrical equipment in the target ring network cabinet through the DTU, and cannot maintain and fail the ring network cabinet in time Excluded issues. Apparently, the DTU provided in the utility model can greatly improve the user experience of staff when using the DTU.

Description of drawings

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

Fig. 1 is the structural representation of a kind of ring main unit DTU that the utility model embodiment provides;

Fig. 2 is the structural representation of the display screen in a kind of DTU that the utility model embodiment provides;

Fig. 3 is a schematic structural diagram of another ring main unit DTU provided by the embodiment of the present invention.

Detailed ways

The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. example. Based on the embodiments of the present utility model, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the scope of protection of the present utility model.

In the existing technology, the DTU in the ring network cabinet is generally used to collect and transmit the operation data in the ring network cabinet, and the staff cannot view the operation data in the ring network cabinet through the DTU, nor can the DTU It is not conducive to the maintenance and troubleshooting of the ring main unit, which greatly reduces the user experience of the staff when using the DTU. The purpose of this new use model is to provide a new ring network cabinet DTU, through which the DTU in the utility model can not only enable the staff to check the operation data in the ring network cabinet in real time, but also can monitor each ring network cabinet. The electrical equipment is controlled, and the faults in the ring main unit are eliminated in a timely manner, which greatly improves the user experience of the staff when using the DTU. In order to enable those skilled in the art to better understand the utility model, the utility model will be described in detail below in conjunction with the accompanying drawings and specific embodiments.

As shown in Figure 1, this embodiment discloses a ring network cabinet DTU, the ring network cabinet DTU includes:

CPU11 for processing the input data and/or output data of the DTU of the target ring main unit to obtain the processed data;

Communicatively connected with the CPU 11, a display screen 12 for displaying input data and/or output data and processing data;

The first controller 13 is connected in communication with the CPU 11 and is used to control the electrical equipment in the target ring network cabinet according to the processed data.

In this embodiment, at first be to set a CPU11 (Central Processing Unit, central processor). It is conceivable that the CPU 11 is a very large-scale integrated circuit, in which an arithmetic logic unit (ALU), registers, and a controller are usually embedded. Specifically in this embodiment, the internal workflow of the CPU is roughly as follows: CPU11 first extracts the input data and/or output data in the DTU from the register, and utilizes the arithmetic logic operation unit to analyze the input data and/or output data and processing, to obtain the processed data, and convert the processed data into corresponding micro-operations, and then, the control controller issues control commands corresponding to the micro-operations, so that the CPU completes the processing of the input data and/or output data.

Then, a display screen 12 for displaying input data and/or output data and processing data is provided in the DTU to establish a communication connection with the CPU 11 . It is conceivable that by setting the display screen 12 in the DTU, the staff can view the input data, output data and processing data in the target ring network cabinet in real time through the display screen 12 on the DTU.

When the target ring network cabinet is abnormal or fails, the staff can view the input data and/or output data and processing data of the target ring network cabinet in real time through the display screen 12, and according to the viewed target ring network cabinet Input data and/or output data and process data to find the cause of the abnormality or failure of the target ring network cabinet, and then locate the specific location of the abnormality or failure of the target ring network cabinet, so that the ring network cabinet in the ring network cabinet can be timely Troubleshooting. Apparently, the DTU provided by this embodiment can greatly improve the maintenance efficiency of the staff when maintaining the DTU.

In addition, in this embodiment, a first controller 13 that establishes a communication connection with the CPU 11 for controlling each electrical device in the target ring main unit according to the processed data is also set in the DTU. Then, when the target ring network cabinet is abnormal or fails, the staff can adjust and control the various electrical equipment in the target ring network cabinet through the first controller 13 on the DTU, thereby avoiding the target ring network cabinet. A security incident occurred in the network cabinet.

Specifically, when an abnormality or failure occurs in the target ring main unit, the staff analyzes the abnormality or failure of the target ring main unit through the input data and/or output data and processing data of the DTU displayed on the display screen 12. According to the cause of the abnormality or failure of the target ring main unit, adjust and control the electrical equipment in the target ring main unit accordingly, that is, control the circuit breaker and/or load switch in the target ring main unit and/or the isolating switch and/or the grounding knife are adjusted accordingly to avoid safety accidents in the target ring main unit, and thereby avoid economic losses caused to people due to safety accidents in the target ring main unit.

It can be seen that in this embodiment, at first, the CPU that can process the input data and/or output data of the DTU of the target ring network cabinet to obtain the processed data is set in the DTU, and then, the CPU is set in the DTU to establish communication with the CPU Connection, used to display the input data and/or output data of the DTU and the display screen of the processed data, and also set up a communication connection with the CPU in the DTU, which is used to control the electrical equipment in the target ring network cabinet according to the processed data. Control the first controller. It can be seen that the DTU provided by this embodiment not only enables the staff to view the input data and/or output data and processing data of the DTU in real time through the display screen on the DTU, but also enables the staff to view the input data and/or output data and processing data of the DTU through the display screen on the DTU. The first controller performs corresponding operations and controls on various electrical equipment in the target ring main unit according to the processed data, and timely eliminates faults in the DTU, thereby ensuring safe and stable operation of the DTU. This avoids that in the existing technology, the staff cannot view the operation data of the target ring network cabinet through the DTU, cannot regulate each electrical equipment in the target ring network cabinet through the DTU, and cannot maintain and fail the ring network cabinet in time Excluded issues. Apparently, the DTU provided in this embodiment can greatly improve the user experience of staff when using the DTU.

Based on the above embodiment, this embodiment further explains and optimizes the above embodiment, and the CPU 11 is specifically a ZYNQ chip.

It can be understood that the ZYNQ chip is a dual-core ARM Cortex-A9-based processing subsystem and a Xilinx 28nm programmable logic chip. On-chip memory, external memory interfaces and a large number of peripheral connection interfaces are provided on the ZYNQ chip.

Obviously, in this embodiment, the CPU11 is integrated in the ZYNQ chip, which can not only reduce the space occupied by the CPU11 in the DTU, but also, because the ZYNQ chip has a powerful logic processing function, it can make the CPU11 in the DTU faster. data processing speed. In addition, the program logic inside the ZYNQ chip can also be used to realize intelligent control of the target ring network cabinet, thereby avoiding safety accidents caused by staff misoperations and greatly improving the user experience of staff when using DTU.

Based on the above embodiments, this embodiment further explains and optimizes the above embodiments. Specifically, the display screen 12 includes:

A man-machine interface for displaying input commands and/or output commands of the target ring main unit.

In order to further facilitate the user to regulate and control each electrical device in the target ring network cabinet, in this embodiment, a human-computer interaction for displaying input instructions and/or output instructions of the target ring network cabinet is also provided on the display screen 12. interface.

It is conceivable that the human-computer interaction interface is used as a medium and a dialogue interface for information exchange between the staff and the target ring network cabinet. The equipment can be regulated, which can significantly improve the work efficiency of the staff. It should be noted that the human-computer interaction interface here may be a keyboard, a touch screen, or other forms of human-computer interaction interfaces, which are not specifically limited here.

Based on the above embodiments, this embodiment further explains and optimizes the above embodiments. Specifically, the display screen 12 is an integrated touch screen embedded with a Cortex-A8 CPU 11 .

It can be understood that the Cortex-A8 CPU11 is a processor suitable for complex operating systems, and the processor has the advantages of fast data processing speed and low power consumption. The integrated touch screen with Cortex-A8 CPU11 embedded in the display screen 12 can not only enable users to have the user experience of a desktop computer when using the display screen 12, but also set the display screen 12 as an integrated touch screen to reduce production display costs. The production cost of the display screen 12 is reduced, and the production efficiency of the display screen 12 is improved.

In addition, setting the display screen 12 as an integrated touch screen with a built-in Cortex-A8 CPU11 can not only make the quality of the display screen 12 lighter, but also make the volume of the display screen 12 lighter and thinner, thereby further improving the performance of the display screen 12. The user experience of the user during use.

Based on the above embodiment, this embodiment further explains and optimizes the above embodiment, as shown in FIG. 2 , specifically, the display screen 12 includes:

Target chip 14 for storing MCGS embedded configuration software;

Processor 15 for running MCGS embedded configuration software.

It should be noted that MCGS embedded configuration software (Monitor and Control Generated System, embedded general monitoring system) is a configuration software used to quickly construct and generate a monitoring system. In this embodiment, a target chip 14 storing MCGS embedded configuration software is embedded in the display screen 12 and a processor 15 capable of running MCGS embedded configuration software is embedded in the display screen 12 . Then, the staff can use the MCGS embedded configuration software to display the data in the display screen 12 in the form of images, reports, curves, etc., so that the data in the display screen 12 is more intuitive and clear. According to the images and/or reports and/or curves displayed on the display screen 12, the personnel can better regulate and control each electrical equipment in the target ring main unit.

Here a specific example is used to illustrate. After the CPU is powered on, each sensor in the target ring network cabinet can upload the monitored temperature, humidity, analog quantity and state quantity of the target ring network cabinet to the CPU. Humidity, analog and state quantities, the current operating state of the target ring network cabinet can be analyzed and processed to determine the current operating state of the target ring network cabinet, and control the CPU output according to the current operating state of the target ring network cabinet Control instructions for regulating and regulating each electrical device in the target ring network cabinet to avoid failure of the target ring network cabinet.

It should be noted that the analog quantity of the target ring main unit here refers to the AC and DC analog quantities of each electrical equipment in the target ring main unit, that is, the three-phase voltage, three-phase current, Zero-sequence voltage, zero-sequence current, active power, reactive power, apparent power, power factor, frequency and DC voltage, etc.

In addition, in this embodiment, when the display screen 12 displays the current operating status of the target ring network cabinet, it can also be configured in the MCGS embedded In the software, the switch state display interface, temperature and humidity display interface, electrical parameter display interface, switch operation interface, fault alarm display interface, and historical data query display interface of the target ring network cabinet are developed, so as to make the data in the display screen 12 more accurate. for clarity and clarity. Of course, the data in the display screen 12 can also be reclassified and divided according to the needs of the actual situation, so as to meet the specific needs of different application scenarios.

In addition, it should be noted that in practical applications, the electrical equipment installed in the target ring network cabinet will be different, for example: the types of ring network cabinets include I, Q, B, O, IC, B/CB, and MT, etc. etc., the logic function corresponding to the target ring main unit will also be different. Therefore, when developing the switch state display interface and switch operation interface of the target ring network cabinet in the MCGS embedded configuration software, the switch state display interface and switch operation interface suitable for all functional unit ring network cabinets can be designed, then , when the display screen 12 displays the ring network cabinet of a certain functional unit, it can call the switch state display interface and the switch operation interface corresponding to the target ring network cabinet according to the specific conditions of the target ring network cabinet, so as to achieve Further improve the user experience of staff in the process of using DTU.

Based on the above embodiments, this embodiment further explains and optimizes the above embodiments. Specifically, the first controller 13 has a built-in WiFi transceiver.

It can be understood that the WiFi (Wireless Fidelity, wireless network) transceiver has the advantages of stable and reliable data transmission, wide coverage, no wiring, fast transmission speed, etc., and is currently the most widely used wireless network transmission device. Therefore, in this embodiment, a WiFi transceiver is built in the first remote controller, so that the staff can use the first controller 13 to perform non-contact operation and control on each electrical device in the target ring network cabinet .

Based on the foregoing embodiments, this embodiment further illustrates and optimizes the foregoing embodiments. Specifically, as shown in FIG. 3 , the ring network cabinet DTU also includes:

Connected to the CPU 11 in communication, a memory 16 for storing input data and/or output data and processing data.

In this embodiment, a memory 16 for storing input data and/or output data and processing data is also provided in the DTU. If the DTU of the target ring network cabinet breaks down or is abnormal, the staff can analyze the cause of the DTU failure or abnormality through the input data and/or output data and processing data stored in the memory 16, so that the staff can quickly Overhaul the DTU in a timely manner, and eliminate the faults in the DTU in time, so as to ensure the safe and stable operation of the DTU.

It should be noted that, in practical applications, the memory 16 can be set as a RAM (Random Access Memory, random access memory), or the memory 16 can be set as a ROM (Read Only Memory, read-only memory), and the memory 16 can also be set as It is set as Flash Memory (flash memory), and the type of the memory 16 is not specifically limited here.

Based on the above-mentioned embodiment, this embodiment further explains and optimizes the above-mentioned embodiment, as shown in Figure 3, the ring main unit DTU also includes:

The second controller 17 is connected to the CPU 11 by communication, and is used to collect the operation data of the target ring network cabinet and regulate the target ring network cabinet according to the operation data.

In this embodiment, a second controller 17 that is connected to the CPU 11 for collecting the operating data of the target ring network cabinet and regulating the target ring network cabinet according to the operating data is also set in the DTU. In this way, the working The personnel can adjust and control each electrical equipment in the target ring network cabinet at the remote end. Obviously, this kind of operation mode can enable the staff to remotely monitor the operating status of the target ring network cabinet in real time, thereby greatly improving the work efficiency of the staff.

Specifically, the second controller 17 includes:

A telemetry device 18 for collecting the electric quantity and/or non-electric quantity of the target ring main unit;

A remote signaling device 19 for collecting the state variables of each electrical equipment in the target ring main unit;

A remote control device 20 for regulating and controlling each electrical equipment in the target ring main unit according to the electric quantity and/or non-electric quantity and state variables.

It is conceivable that in practical applications, the target ring main unit in the power supply area is generally far away from the host computer. Therefore, in this embodiment, in order to enable the staff to use the host computer to remotely control the target ring main unit, It is to use the telemetry device 18 to collect the electric quantity and/or non-electric quantity in the target ring network cabinet. Specifically, the electrical quantity here refers to the electrical quantity in the target ring main unit, including the measured values of voltage and current of the target ring main unit; the non-electric quantity here refers to the non-electrical quantity in the target ring main unit, including the target Measured values such as the temperature and humidity in the ring network cabinet and the gas concentration of the gas to be measured in the target ring network cabinet.

It can be understood that in practical applications, circuit breakers and/or load switches and/or isolating switches and/or grounding switches are generally installed in the target ring network cabinet, and these electrical Therefore, in this case, the remote signaling device 19 can also be used to collect the state variables of the electrical equipment in the target ring network cabinet.

In this embodiment, when the electric quantity and/or the non-electric quantity of the target ring network cabinet are collected by the telemetry device 18, and the state variables of each electrical equipment in the target ring network cabinet are collected by the remote signal device 19, the second controller The remote control device 20 in 17 can regulate and control each electrical equipment in the target ring network cabinet according to the data collected by the telemetering device 18 and the remote signaling device 19, that is, the remote control device 20 can control the electrical equipment in the target ring network cabinet according to the electric quantity and/or Non-power and state variables, send corresponding operation instructions to each electrical device in the target ring network cabinet, so that the target ring network cabinet is in a safe operating state. Obviously, by configuring the telemetering device 18, the remote signaling device 19 and the remote sensing device 20 in the second controller 17, the staff can monitor and manage the target ring network cabinet at the remote end, thereby further improving the staff's efficiency. work efficiency.

Specifically, the second controller 17 includes:

Serial to GPRS device for data conversion of power and/or non-power and state variables.

It can be understood that the data formats of the electric and/or non-electrical quantities of the target ring main unit and the state variables of each electrical equipment in the target ring main unit are different. In order to enable data interaction between data in different formats, in this In the embodiment, the serial port to GPRS device in the second controller 17 is used to convert the electrical and/or non-electrical power of the target ring main unit and the state variables of each electrical device in the target ring main unit into serial port data with a uniform format.

As a result, the second controller 17 can transmit the serial port data with a uniform format to the remote host more quickly through the GPRS wireless communication network. Apparently, the data transmission efficiency in the second controller 17 can be significantly improved by setting a serial port-to-GPRS device in the second controller 17 for data conversion of electricity and/or non-electricity and state variables.

The above description of the disclosed embodiments enables those skilled in the art to realize or use the utility model. 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 invention. Therefore, the present invention will not be limited to these embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims (10)

1. A ring main unit DTU is characterized in that, comprising: The CPU used to process the input data and/or output data of the DTU of the target ring main unit to obtain the processed data; A display screen connected to the CPU for displaying the input data and/or output data and the processed data; A first controller that is connected to the CPU in communication and is used to control each electrical device in the target ring main unit according to the processing data. 2. The ring main unit DTU according to claim 1, wherein the CPU is specifically a ZYNQ chip. 3. Ring main unit DTU according to claim 1, is characterized in that, described display screen comprises: A human-computer interaction interface for displaying input instructions and/or output instructions of the target ring main unit. 4. The ring main unit DTU according to claim 1, wherein the display screen is an integrated touch screen embedded with a Cortex-A8CPU. 5. Ring main unit DTU according to claim 1, is characterized in that, described display screen comprises: Target chip used to store MCGS embedded configuration software; A processor for running the MCGS embedded configuration software. 6. The ring main unit DTU according to claim 1, wherein the first controller has a built-in WiFi transceiver. 7. Ring main unit DTU according to claim 1, is characterized in that, also comprises: A memory connected to the CPU in communication and used for storing the input data and/or output data and the processing data. 8. The ring main unit DTU according to any one of claims 1 to 7, further comprising: A second controller connected in communication with the CPU for collecting the operating data of the target ring main unit and regulating the target ring main unit according to the operating data. 9. ring main unit DTU according to claim 8, is characterized in that, described second controller comprises: A telemetry device for collecting the electric quantity and/or non-electric quantity of the target ring main unit; A remote signaling device for collecting state variables of each electrical equipment in the target ring main unit; A remote control device for regulating and controlling each electrical device in the target ring main unit according to the electric quantity and/or non-electric quantity and the state variable. 10. ring main unit DTU according to claim 9, is characterized in that, described second controller comprises: A serial port-to-GPRS device used for data conversion of the electric quantity and/or non-electric quantity and the state variable.