阅读说明：本技术 一种用于线变识别的台区智能融合终端 (Intelligent platform area fusion terminal for line transformer identification ) 是由 葛玉磊 张东升 苏超 周来恩 郑耀汉 侯胜坤 王文刚 王金涛 徐旭 于 2020-12-22 设计创作，主要内容包括：本发明设计一种用于线变识别的台区智能融合终端,包括核心模块、交采模块、遥信模块、线变模块、时钟模块、蓝牙模块、232模块、485模块、以太网模块、本地通信模块、远程通信模块。本发明将带地址、稳定可靠且无缝智能切换的低频中压载波信号注入到电力线进行传输,通过线变分析机识别并上传至主站,若出现电力线供电电源切换时,会在主站界面弹出线路归属变更提醒,由用户确认,然后自动更新出最新的线变拓扑。本发明支持线变识别、多类型容器安装、深化应用、登录双主站,能够解决中低压配电网线变关系混乱、台区智能终端种类众多且功能单一等问题,为打通营配融合的关键通道。(The invention designs an intelligent platform area fusion terminal for line transformer identification, which comprises a core module, an alternate acquisition module, a remote signaling module, a line transformer module, a clock module, a Bluetooth module, a 232 module, a 485 module, an Ethernet module, a local communication module and a remote communication module. The invention injects the low-frequency medium-voltage carrier signal with address, stability, reliability and seamless intelligent switching into the power line for transmission, identifies and uploads the signal to the main station through the line transformer analyzer, and pops up a line attribution change prompt on the interface of the main station if the power supply of the power line is switched, and the prompt is confirmed by a user, and then the latest line transformer topology is automatically updated. The invention supports line transformer identification, multi-type container installation, deepened application and login of double main stations, can solve the problems of disordered line transformer relation of a medium-low voltage distribution network, various intelligent terminals in a distribution area, single function and the like, and is a key channel for management and distribution integration.)

1. The utility model provides a platform district intelligence fusion terminal for line becomes discernment, includes core module, handed over and adopts module, telesignalling module, line becomes module, clock module, bluetooth module, 232 module, 485 modules, ethernet module, local communication module, remote communication module, wherein:

the core module is the whole core of the terminal and controls the coordination work of all the functional modules through all the peripheral interfaces; the industrial-grade single-core multi-core CPU can run to 1.2GHz and comprises various interfaces such as RGMII (reduced instruction set interface), software and hardware are highly decoupled, installation of various containers is supported, and various functional modules such as an alternate acquisition module, a line transformer module and a Bluetooth module are managed in real time;

the traffic acquisition module is a metering unit, can realize acquisition and processing of remote measurement, has high precision and good real-time performance, and the remote signaling module can acquire external dry nodes such as water level and breaker state;

the line transformer module sends a high-current low-frequency carrier signal through an inverter circuit, the high-current low-frequency carrier signal is transmitted through a power line, and the low-frequency carrier signal is decoded and identified through a line transformer analyzer installed at a transformer substation;

the clock module adopts a high-precision clock chip, so that the accuracy of a system clock can be ensured;

the Bluetooth module is a terminal debugging interface and is adapted to a palm computer to carry out local debugging and maintenance;

the 232 module is a functional circuit module, collects a channel of external 232 interface equipment, and realizes electrical safety isolation with an external interface through a digital isolator, so that the safety and reliability of the system are ensured;

the 485 module is a functional circuit module, collects a channel of external 485 interface equipment, and realizes electrical safety isolation with an external interface through a digital isolator, so that the safety and reliability of the system are ensured;

the Ethernet module is an interface for local and remote communication, and a data transceiver of a management layer in the Ethernet module supports kilomega communication through an RGMII interface;

the local communication module adopts an autonomous broadband carrier chip, carries out carrier signal transmission through a power line medium, and supports the functions of station area or phase distinguishing, active reporting, automatic networking and the like;

the remote communication module adopts a double-4G and GPS three-module scheme, supports simultaneous login, marketing and operation and inspection of double main stations, is high in integration level and accurate in positioning, and provides a reliable uplink data channel by intelligently fusing a transmission center between the terminal and the main station in a transformer area;

the handing-over module and the remote signaling module are integrated together and are used as a slave module to be connected with the core module through an SPI (serial peripheral interface); the line transformer module is connected with the core module through an IIC interface; the clock module is connected with the core module through an IIC interface; the Bluetooth module is connected with the core module through a UART interface; the 232 module is connected with the digital isolator and is connected with the core module through a UART interface; the 485 module is connected with the digital isolator and is connected with the core module through a UART interface; the Ethernet module is connected with the core module through an RGMII interface; the local communication module communicates with the core module through a UART interface; the remote communication module and the core module carry out GPS communication through a UART interface and carry out double 4G communication through a USB interface.

Technical Field

The invention belongs to the technical field of intelligent terminals for marketing and distribution integration and emerging services, and particularly relates to an intelligent integration terminal for a line transformer area.

Background

At present, the condition that a transformer in a transformer area belongs to a plurality of medium-voltage lines commonly exists in medium-low voltage distribution lines, the complicated topology leads to unclear affiliation relationship between the transformer and the lines, 10KV line power supply switching is needed when power consumption peaks or lines run faults, a new line change relationship cannot be obtained in time after the running mode is changed, operation and maintenance work in the later period is difficult to develop, and a line change identification terminal is needed to solve the problem that the line change relationship between the medium-voltage lines and the transformer in the transformer area is unclearly combed.

In the low-voltage distribution transformer area, intelligent terminals such as a concentrator, a special transformer acquisition terminal and an intelligent distribution transformer terminal are arranged. The installation space of the field platform area is limited, the types of terminals are more, and the construction and installation are difficult and waste; meanwhile, a barrier exists between data sharing and business collaboration of marketing and operation inspection, and data cannot be shared in collaboration among terminals to form an information isolated island, so that the operating pressure of a main station system is increased day by day, and the problems of limited installation space and isolated terminals are solved by a transformer area intelligent fusion terminal.

Under the background of ubiquitous power internet of things and support line-variable-branch-user construction, the demands of application of advanced functions such as station area topology analysis, line loss analysis, fault location, line variable relation and open-type capacity analysis are increasing, the quantity and types of sensing equipment accessed to an intelligent station area are increasing, and a station area intelligent fusion terminal with large data operation, local analysis decision and edge calculation is needed to solve the problem of advanced application.

Traditional terminals do not have deepened application functions such as line transformation recognition function and edge calculation, only support logging in a single main station, if the marketing and distribution integration function is to be realized, a plurality of terminals need to be installed, the cost is wasted, and the installation space is limited.

Therefore, it is necessary to develop an intelligent platform area convergence terminal for identifying line transformers, which is capable of combing line transformer relationships, has high integration level and convenient installation, has deepened application functions such as edge calculation, and supports marketing and distribution convergence.

Disclosure of Invention

Aiming at various problems of the intelligent terminal of the transformer area, the invention provides the intelligent fusion terminal of the transformer area for identifying the line transformer, aiming at solving the problems of disordered relation of the line transformer, limited installation space, various types of terminals, single function and the like, effectively simplifying the configuration of the terminal of the transformer area, reducing resource waste and solving the operation and maintenance pain point of a power grid.

In order to achieve the purpose, the invention provides an intelligent platform area fusion terminal for line transformer identification, which comprises a core module, an acquisition module, a remote signaling module, a line transformer module, a clock module, a Bluetooth module, a 232 module, a 485 module, an Ethernet module, a local communication module and a remote communication module;

the core module is the whole core of the terminal and controls the coordination work of all the functional modules through all the peripheral interfaces; the industrial-grade single-core multi-core CPU can run to 1.2GHz and comprises various interfaces such as RGMII (reduced instruction set interface), software and hardware are highly decoupled, installation of various containers is supported, and various functional modules such as an alternate acquisition module, a line transformer module and a Bluetooth module are managed in real time;

the traffic acquisition module is a metering unit, can realize acquisition and processing of remote measurement, has high precision and good real-time performance, and the remote signaling module can acquire external dry nodes such as water level and breaker state;

the line transformer module sends a high-current low-frequency carrier signal through an inverter circuit, the high-current low-frequency carrier signal is transmitted through a power line, and the low-frequency carrier signal is decoded and identified through a line transformer analyzer installed at a transformer substation;

the clock module adopts a high-precision clock chip, so that the accuracy of a system clock can be ensured;

the Bluetooth module is a terminal debugging interface and is adapted to a palm computer to carry out local debugging and maintenance;

the 232 module is a functional circuit module, collects a channel of external 232 interface equipment, and realizes electrical safety isolation with an external interface through a digital isolator, so that the safety and reliability of the system are ensured;

the 485 module is a functional circuit module, collects a channel of external 485 interface equipment, and realizes electrical safety isolation with an external interface through a digital isolator, so that the safety and reliability of the system are ensured;

the Ethernet module is an interface for local and remote communication, and a data transceiver of a management layer in the Ethernet module supports kilomega communication through an RGMII interface;

the local communication module adopts an autonomous broadband carrier chip, carries out carrier signal transmission through a power line medium, and supports the functions of station area or phase distinguishing, active reporting, automatic networking and the like;

the remote communication module adopts a double-4G and GPS three-module scheme, supports simultaneous login marketing and operation and inspection of double main stations, is high in integration level and accurate in positioning, and provides a reliable uplink data channel by combining a transmission center between the terminal and the main station in a district intelligent manner.

The handing-over module and the remote signaling module are integrated together and are used as a slave module to be connected with the core module through an SPI (serial peripheral interface); the line transformer module is connected with the core module through an IIC interface; the clock module is connected with the core module through an IIC interface; the Bluetooth module is connected with the core module through a UART interface; the 232 module is connected with the digital isolator and is connected with the core module through a UART interface; the 485 module is connected with the digital isolator and is connected with the core module through a UART interface; the Ethernet module is connected with the core module through an RGMII interface; the local communication module communicates with the core module through a UART interface; the remote communication module and the core module carry out GPS communication through a UART interface and carry out double 4G communication through a USB interface.

The invention has the beneficial effects that: the intelligent integration terminal for the transformer area for the line transformer identification supports the functions of the line transformer identification, the multi-type container installation, the deepened application, the login of the double master stations and the like, can solve the problems of disordered line transformer relations of a medium-low voltage distribution network, various intelligent terminals of the transformer area, single function and the like, and is a key channel for communication, marketing and distribution integration.

Drawings

Fig. 1 is a block diagram of a station area intelligent convergence terminal for line change identification.

Fig. 2 is a process of line change identification of the station area intelligent convergence terminal for line change identification.

Detailed Description

The present invention will be further described with reference to the accompanying drawings and examples to specifically illustrate the technical solutions of the present invention. The following examples are only for illustrating the technical solutions of the present invention more clearly, and the protection scope of the present invention is not limited thereby.

As shown in fig. 1, an intelligent convergence terminal for a transformer area for line transformer identification includes a core module, an acquisition module, a remote signaling module, a transformer module, a clock module, a bluetooth module, a 232 module, a 485 module, an ethernet module, a local communication module, and a remote communication module. The core module is the whole core of the terminal and controls the coordination work of all the functional modules through all the peripheral interfaces; the industrial-grade single-core multi-core CPU can run to 1.2GHz and comprises various interfaces such as RGMII (reduced instruction set interface), software and hardware high decoupling, and can support installation of various containers and real-time management of various functional modules such as an alternate acquisition module, a line transformer module and a Bluetooth module. The alternate collection module is a metering unit, can realize the collection and processing of remote measurement, and has high precision and good real-time performance; the remote signaling module can collect external dry nodes such as water level and breaker state; the interleaving module adopts algorithms such as a high-precision sampling chip, soft metering and DUI, high precision and anti-interference performance of remote measurement can be guaranteed, and the remote signaling module adopts an anti-shake filtering algorithm to effectively prevent remote signaling misoperation. The line transformer module sends a high-current low-frequency carrier signal through the inverter circuit, the high-current low-frequency carrier signal is transmitted through a power line, and a line transformer analyzer installed at a transformer substation identifies the low-frequency carrier signal through decoding; the line transformer module and the core module realize communication through an IIC interface, can control timing or call injection signals, and sends stable, reliable and seamless intelligent switching low-frequency medium-voltage carrier identification signals. The clock module adopts a high-precision clock chip, and can ensure the accuracy of the system clock. The Bluetooth module is a terminal debugging interface and is adapted to a palm computer to carry out local debugging and maintenance. The 232 module is a functional circuit module, collects the channel of external 232 interface equipment, and realizes electrical safety isolation with an external interface through a digital isolator, thereby ensuring the safety and reliability of the system. The 485 module is a functional circuit module, collects a channel of external 485 interface equipment, and realizes electrical safety isolation through the digital isolator and an external interface, thereby ensuring the safety and reliability of the system. The Ethernet module is an interface for local and remote communication, and a data transceiver of the management layer in the Ethernet module supports kilomega communication through an RGMII interface. The local communication module adopts an autonomous broadband carrier chip, carries out carrier signal transmission through a power line medium, supports the functions of station area or phase distinguishing, active reporting, automatic networking and the like, and has the advantages of good frequency offset estimation, better time-frequency domain diversity, a collision avoidance mechanism of TDMA (time division multiple access) and CSMA/CA (carrier sense multiple access/carrier). The remote communication module adopts a double-4G and GPS three-module scheme, supports simultaneous login marketing and operation and inspection of double main stations, is high in integration level and accurate in positioning, and provides a reliable uplink data channel by combining a transmission center between the terminal and the main station in a district intelligent manner.

The handing-over module and the remote signaling module are integrated together and are used as a slave module to be connected with the core module through an SPI (serial peripheral interface); the line transformer module is connected with the core module through an IIC interface; the clock module is connected with the core module through an IIC interface; the Bluetooth module is connected with the core module through a UART interface; the 232 module is connected with the digital isolator and is connected with the core module through a UART interface; the 485 module is connected with the digital isolator and is connected with the core module through a UART interface; the Ethernet module is connected with the core module through an RGMII interface; the local communication module communicates with the core module through a UART interface; the remote communication module and the core module carry out GPS communication through a UART interface and carry out double 4G communication through a USB interface.

As shown in fig. 2, the same bus bar may belong to two substations, and when one substation is out of line and is in fault or high-load operation, the other substation may be switched. The same transformer substation can output a plurality of 10KV buses, and the same bus can carry a plurality of transformer areas.

The line change identification process of the intelligent platform area fusion terminal for line change identification comprises line change signal injection, line change signal identification and master station combing. The line-to-line signal injection verifies the characteristics of no change before and after signal injection and power grid friendliness through harmonic extraction of the whole power grid, and the district intelligent fusion terminal injects a low-frequency medium-voltage carrier signal with an address, stability, reliability and seamless intelligent switching into the A-phase power line for transmission and sends the signal in a time-sharing manner with a carrier meter reading signal, so that mutual interference can be avoided. The line variable signal identification is realized, the ratio of a background signal to a carrier characteristic signal in a power grid environment is 10000:1, and based on carrier coding, frequency discrimination, decoding and error correction technologies, a line variable analyzer can accurately identify a terminal address, carrier signal intensity, fundamental wave load intensity and the like carried by a line variable signal. The master station is combed, the archive maintenance is carried out on the power distribution master station, the line transformer relation is established, the line transformer analysis machine uploads a line transformer identification result to the power distribution master station in a wireless mode, the master station can be combed out the latest line transformer relation, when the power line power supply is switched, a line attribution change prompt can be popped out on a master station interface, the line attribution change prompt is confirmed by a user, and then the latest line transformer topology is automatically updated.

The above embodiments are illustrative of specific embodiments of the present invention, and are not restrictive of the present invention, and those skilled in the relevant art can make various changes and modifications without departing from the spirit and scope of the present invention to obtain corresponding equivalent technical solutions, and therefore all equivalent technical solutions should be included in the scope of the present invention.