Plant station electric energy acquisition system based on USB bus

Abstract

The invention discloses a power station electric energy acquisition system based on a USB (Universal Serial Bus), which manages downlink electric energy meter information acquisition and uplink master station connection and interaction through the high-speed USB (480Mbps), solves data delay and information backlog caused by interface reasons, can manage electric energy acquisition of at least hundreds of electric energy meters by downlink, and has the advantages that the data delay and the information backlog are reduced, and the electric energy acquisition efficiency is improved. And three paths of 100M Ethernet communication and two paths of 4G communication can be realized in the uplink. The multi-channel acquisition and multi-channel uplink acquisition system with high acquisition capability, high operation speed and high uplink and downlink speed is realized, so that the big data requirements of automatic meter reading management, orderly power utilization management, power utilization condition statistical analysis, abnormal power utilization analysis, electric energy quality data statistics, line loss and bus electric quantity balance analysis and the like of the transformer substation are met.

Description

Technical Field

[0001] The present invention relates to the field of power energy information collection in substations and power plants, and particularly to a substation power energy collection system based on the USB bus. Background Art

[0002] With the application and improvement of the power consumption information collection system, it is particularly important to support the operation of the power market, electricity bill settlement, and improve power supply reliability and accuracy. Therefore, power supply companies need to continuously improve and increase value-added services such as automatic meter reading management in substations, orderly power consumption management, power consumption situation statistical analysis, abnormal power consumption analysis, power quality data statistics, line loss and bus power balance analysis, etc. Therefore, higher requirements are put forward for the collection ability, operation speed, and up and down speeds of the substation power energy collection system. Currently, in the industry, for downlink collection and uplink communication, affected by the system framework, the bus speed remains at a few megabits, while after using the USB bus, the up and down speeds can reach 480 Mbps, making the substation power energy collection system based on the USB bus particularly important. Summary of the Invention

[0003] To solve the deficiencies of the above-mentioned existing technologies, the present invention provides a substation power energy collection system based on the USB bus, which realizes the rapid, accurate collection, processing, and uploading of power energy information by using the USB bus.

[0004] To achieve the above object, the present invention proposes a substation power energy collection terminal based on the USB bus, which can realize the automatic collection, storage, and processing of power energy data in substations and power plants and upload the data to the master station through various communication lines. It includes a control module, a USB_HUB module, a management module, an external plug-in module, a USB to Ethernet module, a power supply module, an indicator light module, a maintenance interface module, a touch LCD module, a master station, and a watt-hour meter, where:

[0005] The control module collects, records, and processes power energy data and transmits the processed data to the master station;

[0006] The management module collects watt-hour meter information, including watt-hour meter communication address, rate number, user type, etc.;

[0007] The external plug-in module conducts power energy data interaction with the master station or the watt-hour meter;

[0008] The USB_HUB module is connected to the management module and the external plug-in module for data transmission;

[0009] The USB to Ethernet module realizes the power energy data interaction between the collection system and the master station;

[0010] The power supply module includes AC and DC power supplies and a super capacitor module to supply power to the system;

[0011] The indicator light module includes an operating light, an alarm light, a power indicator light, a meter reading indicator light, and LINK and DATE Ethernet status lights, and realizes the prompting functions of operation, local communication, remote communication, and data upload.

[0012] The maintenance interface module includes a USB interface, an RS-232 debugging interface, a TYPE-C debugging interface, an RS-485 debugging interface, and a Bluetooth interface. It is connected to the control module through the debugging interface, and can realize the functions of locally manually collecting electricity meter information, reading system status, configuring parameters, monitoring messages, exporting stored electrical energy information and logs.

[0013] The touch LCD module includes a touch panel and an LCD liquid crystal screen, and can locally collect and display electricity meter information, configure system parameters, and display the system working status through the interface.

[0014] The master station summons and copies the data of the substation electric energy acquisition system at any time or regularly, processes it, and forms various reports, curves, and historical databases to meet the user's needs.

[0015] The electricity meter is used for measuring the electricity consumption of electricity meter users.

[0016] Furthermore, the control module communicates with the electricity meter through the USB bus, collects relevant data in the electricity meter, records, processes, and statistics it, and transmits the processed data to the master station through the USB to Ethernet module or the external plug-in module. The master station reversely transmits the master station information to the control module through the USB to Ethernet module or the external plug-in module channel.

[0017] Furthermore, the AC and DC power supplies of the power module can be switched without interruption or can be powered simultaneously.

[0018] Furthermore, the supercapacitor has a specification of 7.2V. When the power module is converted to the DC-DC boost mode, the supercapacitor module can continue to supply power for a short time after the power is disconnected.

[0019] Furthermore, the management module can convert the USB bus into multiple UART interfaces and IOs, and use them as functional interfaces on the PCB board, such as RS-485 functional interfaces, RS-232 functional interfaces, and telemetry signal functional interfaces.

[0020] Furthermore, the external plug-in module is connected in the USB bus mode and can externally connect three upstream communication modules of 4G communication, 5G communication, and MODEM communication for upstream connection and interaction with the master station, and can also externally connect RS-485, RS-232, and telemetry signal downstream acquisition modules for downstream interaction with the electricity meter.

[0021] Further, the USB-to-Ethernet module converts the USB bus into multiple Ethernet and fiber optic interfaces to achieve an uplink connection with the master station and perform data interaction between the acquisition terminal and the master station.

[0022] Advantages of the present invention: The entire substation electric energy acquisition system is connected through the USB bus, boosting the communication rate to 480 Mbps, ensuring the efficient operation of the system's acquisition capacity, computing speed, and uplink and downlink speeds, and solving data latency and information backlog caused by interface issues. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] To more clearly describe the technical solutions in the embodiments of the present invention or in the prior art, the following will briefly introduce the drawings required for use in the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings.

[0024] Figure 1 It is a system diagram of the substation electric energy acquisition system based on the USB bus of the present invention;

[0025] Symbol Description:

[0026] Control module - 1, USB_HUB module - 2, management module - 3, external plug-in module - 4, USB-to-Ethernet module - 5, power supply module - 6, indicator light module - 7, maintenance interface module - 8, touch LCD module - 9, master station - 10, electric energy meter - 11. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0027] To make the above objects, features, and advantages of the present invention more obvious and understandable, the present invention will be further described in detail below with reference to the drawings and specific embodiments.

[0028] The present invention provides a substation electric energy acquisition system based on the USB bus, which manages the control and information acquisition of the downstream electric energy meters and the connection and interaction with the upstream master station through the USB bus. It can achieve a high acquisition capacity, high operating speed, and high uplink and downlink speeds for multi-channel acquisition and multi-channel uplink.

[0029] As Figure 1 shown, a substation electric energy acquisition system based on the USB bus of the present invention includes a control module 1, a USB HUB module 2, a management module 3, an external plug-in module 4, a USB-to-Ethernet module 5, a power supply module 6, an indicator light module 7, a maintenance interface module 8, a touch LCD module 9, a master station 10, and an electric energy meter 11.

[0030] The power supply module 1 provides the operating voltage for the entire system, including AC and DC power supplies and a supercapacitor module. The AC and DC power supplies can be switched without interruption or supply power simultaneously. Additionally, after the power supply is disconnected, the supercapacitor module can continue to supply power for a short period.

[0031] The control module 1 periodically initiates or the master station requests the control module 1 to initiate data collection from the electricity meter 11. By interacting with the electricity meter 11, it obtains data and stores and processes it, and uploads the data to the master station through the external plug-in module 4 and the USB to Ethernet module.

[0032] The master station 10 is connected and interacts with the control module 1 through the channels established by the external plug-in module 4 or the USB to Ethernet module 5.

[0033] The external plug-in module 4 is connected in a USB bus manner and can be externally connected to three upstream communication modules: 4G communication, 5G communication, and MODEM communication, for connection and interaction with the upstream master station 10. It can also be externally connected to RS-485, RS-232, and remote signal downstream modules for information collection of the electricity meter 11.

[0034] The USB to Ethernet module 5 converts the USB bus into multiple Ethernet and fiber optic interfaces, establishes an upstream channel for connection with the master station 10, and realizes data interaction between the acquisition terminal and the master station 10.

[0035] The control module 1 and the electricity meter 11 perform acquisition through the external plug-in module 4 transferred by the USB_HUB module 2 or the management module 3.

[0036] The management module 3 can convert the USB bus into multiple UART interfaces and IOs, serving as functional interfaces on the PCB board, such as RS-485, RS-232, and remote signals, for information collection of the electricity meter 11.

[0037] The indicator light module 7 is connected to the control module 1. The control module 1 controls the flashing of various indicator lights according to the operation, local communication, remote communication, and data upload status, and can realize the prompting function.

[0038] The maintenance interface module 8 includes a USB interface, an RS-232 debugging interface, a TYPE-C debugging interface, an RS-458 debugging interface, and a Bluetooth interface, and is connected to the control module 1 through the debugging interface.

[0039] The touch LCD module 9 is connected to the control module 1, and can locally collect and display electricity meter information, configure system parameters, and display the system working status through the interface.

[0040] In this specification, each embodiment is described in a progressive manner. The key point of each embodiment is to illustrate the differences from other embodiments. For the same and similar parts of each embodiment, reference can be made to each other.

[0041] In this article, specific examples are used to illustrate the principles and implementation modes of the present invention. The description of the above embodiments is only used to help understand the method and its core idea of the present invention; for those of ordinary skill in the art, according to the idea of the present invention, there will be changes in the specific implementation modes and application scopes. In summary, the content of this specification should not be construed as a limitation to the present invention.

Claims

1. A substation electric energy acquisition system based on the USB bus, comprising a control module, a management module, an external plug-in module, a USB_HUB module, a USB-to-Ethernet module, a power supply module, an indicator light module, a maintenance interface module, a touch LCD module, a master station and a watt-hour meter, characterized in that, It can automatically collect, store, and process the electrical energy data of substations and power plants, and upload the data to the master station through various communication lines. Among them, The control module collects, records, processes the electrical energy data, and transmits the processed data to the master station; The management module collects the information of the electric energy meter, including the communication address of the electric energy meter, the number of rates, and the user type; The external plug-in module conducts data interaction of electrical energy with the master station or the electric energy meter; The USB_HUB module is connected to the management module and the external plug-in module to achieve data transmission; The USB to Ethernet module realizes the data interaction of electrical energy between the acquisition system and the master station; The power supply module includes two power supplies, AC and DC, and a supercapacitor module to supply power to the acquisition system; The indicator light module includes an operation light, an alarm light, a power indicator light, a meter reading indicator light, and LINK and DATE Ethernet status lights to realize the prompting functions of operation, local communication, remote communication, and data upload; The maintenance interface module includes a USB interface, an RS-232 debugging interface, a TYPE-C debugging interface, an RS-485 debugging interface, and a Bluetooth interface. It is connected to the control module through the debugging interface protocol, and can realize the functions of manually collecting the information of the electric energy meter locally, reading the system status, configuring parameters, monitoring messages, exporting the stored electrical energy information and logs; The touch LCD module includes a touch panel and an LCD liquid crystal screen, and can locally collect and display the information of the electric energy meter, configure the system parameters, and display the working status of the system through the interface; The master station summons and copies the data of the substation electrical energy acquisition system at any time or regularly for processing, forming various reports, curves, and historical databases to meet the user's needs; The electric energy meter is used for measuring the electricity consumption of electricity meter users.

2. The factory substation electric energy acquisition system based on the USB bus according to claim 1, wherein The control module communicates with the electric energy meter through the USB bus, collects the relevant data in the electric energy meter, records, processes, and statistics it, and transmits the processed data to the master station through the USB to Ethernet module or the external plug-in module. The master station reversely transmits the master station information to the control module through the USB to Ethernet module or the external plug-in module channel.

3. The factory substation electric energy acquisition system based on the USB bus according to claim 1, characterized in that For the power supply module, its AC and DC power supplies can be switched without interruption or can supply power simultaneously.

4. The factory substation electric energy acquisition system based on the USB bus according to claim 1, characterized in that The specification of the supercapacitor is 7.2V. When the power supply module is converted to the DC-DC boost mode, the supercapacitor module can continue to supply power for a short time after the power supply is disconnected.

5. The factory substation electric energy acquisition system based on the USB bus according to claim 1, characterized in that, The management module can convert the USB bus into multiple UART interfaces and IOs as the functional interfaces on the PCB board.

6. The factory substation electric energy acquisition system based on the USB bus according to claim 1, wherein The external plug-in module is connected in the USB bus mode and can externally connect three upstream communication modules, namely 4G communication, 5G communication, and MODEM communication, for upstream connection and interaction with the master station, and can also externally connect RS-485, RS-232, and remote signal downstream acquisition modules for downstream interaction with the electric energy meter.

7. A substation electric energy acquisition system based on the USB bus according to claim 1, characterized in that The USB to Ethernet module converts the USB bus into multiple Ethernet and fiber optic interfaces to realize upstream connection with the master station and conduct data interaction between the acquisition terminal and the master station.

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