CN109150924B - Portable grid structure information query terminal for power distribution network - Google Patents
Portable grid structure information query terminal for power distribution network Download PDFInfo
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- 238000004891 communication Methods 0.000 claims abstract description 34
- 230000003993 interaction Effects 0.000 claims abstract description 11
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- 230000002093 peripheral effect Effects 0.000 claims description 14
- 238000007726 management method Methods 0.000 claims description 11
- 238000000034 method Methods 0.000 claims description 10
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- 238000010276 construction Methods 0.000 description 3
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L67/00—Network arrangements or protocols for supporting network services or applications
- H04L67/01—Protocols
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- H04L67/025—Protocols based on web technology, e.g. hypertext transfer protocol [HTTP] for remote control or remote monitoring of applications
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- G06F1/00—Details not covered by groups G06F3/00 - G06F13/00 and G06F21/00
- G06F1/16—Constructional details or arrangements
- G06F1/18—Packaging or power distribution
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L67/00—Network arrangements or protocols for supporting network services or applications
- H04L67/01—Protocols
- H04L67/12—Protocols specially adapted for proprietary or special-purpose networking environments, e.g. medical networks, sensor networks, networks in vehicles or remote metering networks
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L69/00—Network arrangements, protocols or services independent of the application payload and not provided for in the other groups of this subclass
- H04L69/16—Implementation or adaptation of Internet protocol [IP], of transmission control protocol [TCP] or of user datagram protocol [UDP]
- H04L69/161—Implementation details of TCP/IP or UDP/IP stack architecture; Specification of modified or new header fields
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Abstract
The invention provides a portable information query terminal for grid structure of a power distribution network, and relates to the technical field of maintenance equipment of the power distribution network. The terminal comprises an embedded hardware system based on ARM9 architecture and an embedded software system which is embedded and takes a Linux operating system as an application bottom layer; the hardware system comprises an ARM9 architecture processor, a power supply and reset circuit, a clock circuit, a 1GB SDRAM, a 32G NAND FLASH, a NOR FLASH, a serial communication interface, an Ethernet interface, a TFT screen interface, a TD-LTE wireless communication module, and all physical interfaces and man-machine interaction modules on a shell; the software system comprises an underlying Linux embedded operating system kernel, a hardware circuit driver and an upper power distribution network grid structure information query application program. The invention has small volume, low power consumption and high performance, and can communicate with the network frame relation information system of the power distribution network in real time on line to finish the uploading and downloading work of data.
Description
Technical Field
The invention relates to the technical field of power distribution network overhaul equipment, in particular to a portable power distribution network grid structure information query terminal.
Background
Under the new power system reform situation, the incremental power distribution network is used as a part which takes part in power reform first, and civil capital is allowed to take part in construction and operation inspection. The grid information of the power distribution network is needed to be shared by a power grid company and a distribution network management mechanism, so that the maintenance and the power dispatching are convenient. In the production and operation process of a daily power distribution network, the grid structure and information of the power distribution network often need to be checked in real time on a maintenance site, and the method is used for carrying out operation guarantee, maintenance and the like on the power distribution network. At present, each grid company does not have mobile equipment capable of inquiring the detailed information of the grid frame of the power distribution network on site, but the problems of large grid frame information quantity, frequent data updating and the like cannot be solved by adopting modes of carrying a blueprint of the grid frame structure on site and the like. In the actual distribution network production process, the paper network frame blueprints of the distribution network are often not maintained and updated effectively, most of the network frame blueprints of the distribution network are old in existence information, and in the distribution network scheduling operation process, various asset changes cannot be updated to the blueprints in time, so that the blueprints are not matched with an actual system; and even if the drawing is found to be not matched with reality, the network frame data can not be modified and updated in real time.
For the reasons, a set of portable power distribution network grid structure information query device is urgently needed, online real-time query of power distribution network grid structure electronic data can be achieved, and grid structure data can be directly modified remotely under the condition of high-level authority, so that accuracy and timeliness of the power distribution network grid structure data are guaranteed.
Disclosure of Invention
Aiming at the defects of the prior art, the invention provides the portable information inquiry terminal for the grid structure of the power distribution network, which has the characteristics of small volume, low power consumption, high performance and the like, and can realize real-time online communication with the grid relation information system of the power distribution network and complete the uploading and downloading of data in real time.
In order to solve the technical problems, the invention adopts the following technical scheme:
the portable power distribution network grid structure information query terminal comprises an embedded hardware system based on an ARM9 architecture and an embedded software system which is embedded in the hardware system and is based on a Linux operating system as an application bottom layer;
the embedded hardware system based on ARM9 architecture comprises a main board, an expansion board card and a shell;
the main board comprises a core circuit and a peripheral interface circuit; the expansion board card comprises a TD-LTE wireless communication module which is an independent circuit board and is connected with the main board through a socket; the shell is provided with various physical interfaces corresponding to the peripheral interface circuit and is connected with a socket of the peripheral interface circuit through a flat cable; a man-machine interaction module is arranged on the front end panel of the shell, and comprises an 8-inch TFT multi-touch display screen and a Home key;
the core circuit comprises an ARM9 architecture processor, a power supply and reset circuit, a clock circuit, a 1GB SDRAM data memory and a 32G NAND FLASH program memory, and all modules are communicated through a serial bus; the TFT multi-touch display screen is connected with the SPI interface of the main board through a data flat cable;
the ARM9 framework processor is a kernel 32-bit embedded RISC microprocessor and is used for loading a guiding program of an embedded operation system Linux by combining other core circuits and peripheral interface circuits, automatically running an upper-layer power distribution network grid structure information inquiry application program and finishing inquiry, display, processing and updating of grid data; the power supply and the reset circuit adopt a 5V direct current power supply to supply power for the whole terminal; the clock circuit comprises two clock inputs, one is an ARM9 architecture processor working clock, and the other is an RTC clock; the 1GB SDRAM data memory is used for storing executable codes, comprises Linux process and grid structure inquiring software executing codes, and is directly connected with the ARM9 architecture processor; the 32G NAND FLASH program memory is used for solidifying and storing a Linux operating system, a bootstrap program, a Linux-based hardware device driver and an upper-layer power distribution network grid structure information inquiry application program; the TD-LTE wireless communication module is used for realizing the connection of a TD-LTE wireless network, under the control of the ARM9 framework processor, data is transmitted to a remote network distribution network grid structure information management system server through the Internet, and after the remote network distribution network grid structure information management system server generates feedback data, the feedback data is received by the TD-LTE wireless communication module through the Internet, and the ARM9 framework processor is used for storing and displaying the data;
the peripheral interface circuit is connected to the ARM9 architecture processor core board card and comprises an NOR FLASH, a serial communication interface, an Ethernet interface and a TFT screen interface;
the NOR FLASH is used for storing the starting program of the ARM9 framework processor; the serial communication interface is used for realizing the communication of all the partial circuits and components; the TFT screen interface is connected with a TFT multi-touch display screen;
a virtual keyboard and a query display interface are arranged in the TFT multi-touch display screen and are respectively used for inputting and outputting query conditions and queried drawing result data;
the software system comprises a bottom Linux operating system program and an upper power distribution network grid structure information query application program, wherein the bottom Linux operating system program comprises a Linux embedded operating system kernel and a hardware circuit driver and is used for directly operating a hardware system and responsible for hardware resource allocation, scheduling and management; the upper layer power distribution network grid structure information inquiry application program is developed by using a high-level language and an object-oriented method based on an operating system JAVA virtual machine, realizes multi-port communication through multithreading based on a TCP/IP protocol stack embedded in the operating system and is used for finishing inquiry display and updating maintenance of power grid data, equipment data, position data and overall structure graphic data; the upper layer power distribution network grid structure information inquiry application program comprises a user interaction module, a data processing module, a data display module and a data communication module; the user interaction module is used for realizing the input and browsing functions of a user; the data processing module is used for realizing the format conversion of the combined sending and receiving graphic information of the query conditions; the data display module is used for controlling the display mode of the data and window control; and the data communication module is used for completing the Socket asynchronous communication function and realizing the sending of the query condition and the receiving of the returned result data.
Further, the development of the upper-layer grid structure information inquiry application program uses the JAVA language facing the object.
Further, the ARM9 architecture processor is an S3C2410X processor.
Furthermore, the working clock of the ARM9 architecture processor is an active crystal oscillator of 12MHz, and an external capacitor is not needed, so that the frequency of the internal PLL is doubled to 200MHz; the RTC clock is a 32.768KHz passive crystal oscillator, and the circuit is the same as the clock circuit used by the Ethernet interface.
Further, the NOR FLASH adopts an SST39VF200A model NOR FLASH chip with 64K capacity.
The beneficial effects of adopting above-mentioned technical scheme to produce lie in: the portable power distribution network grid structure information query terminal provided by the invention is constructed by adopting the ARM architecture high-performance processor hardware platform, the performance is basically close to or reaches the level of an industrial control computer, the size is small, the power consumption is low, and the portable power distribution network grid structure information query terminal is convenient for distribution network operation maintenance personnel to carry and use on various construction sites. Meanwhile, the embedded Linux operating system is adopted as the bottom layer of application development and operation, the embedded grid structure information inquiry function is developed by using a high-level language (JAVA language), and the characteristics of embedding a TCP/IP protocol stack, supporting multiple threads and the like of the Linux operating system are utilized, so that the embedded Linux operating system is greatly convenient for developers to quickly complete application program development. The system has the other characteristics that the system can communicate with the network frame relation information system of the power distribution network in real time on line, and the uploading and downloading of the data can be completed in real time.
Drawings
Fig. 1 is a schematic diagram of a portable network structure information query terminal for a power distribution network applied to a network structure information management system according to an embodiment of the present invention;
FIG. 2 is a schematic diagram of an ARM9 architecture processor and a peripheral connection frame in a hardware system according to an embodiment of the present invention;
FIG. 3 is a schematic view of an operation panel of a housing according to an embodiment of the present invention;
fig. 4 is a schematic diagram of an upper-layer grid structure information query application program framework of an embodiment of the present invention.
In the figure: 1. the operation personnel, 2, the network grid structure information inquiry terminal of the distribution network, 3, TD-LTE wireless communication network, 4, internet, 5, the network grid structure information management system server of the distribution network, 6, SDRAM,7, NAND FLASH,8, S3C2410X processor, 9, serial bus, 10, TD-LTE wireless communication module, 11, 8 inch TFT,12, shell, 13, home key.
Detailed Description
The following describes in further detail the embodiments of the present invention with reference to the drawings and examples. The following examples are illustrative of the invention and are not intended to limit the scope of the invention.
As shown in fig. 1, when a transportation and inspection person 1 needs to check grid structure information of a power distribution network on a construction site, a portable grid structure information inquiry terminal 2 of the power distribution network is used; operating on an 8 inch touch screen 13 of the query terminal 2, and performing related information query by using embedded network distribution grid structure information query software, wherein the related information query comprises a whole or partial structure diagram, grid data, equipment accounts, configuration parameters, geographic positions, scheduling information and the like of a required network distribution grid can be checked; clicking a 'query' button of the software, connecting a query command to the TD-LTE wireless network 3 through the built-in TD-LTE wireless communication module 10 by a query block, and transmitting data to the remote distribution network grid structure information management system server 5 through the Internet 4 according to a routing condition. The server 5 generates feedback data according to the query command and transmits the feedback data back to the query terminal 2 through the network; the inquiry terminal 2 displays the inquired result (image or data material) on its 8-inch screen 11.
The portable power distribution network grid structure information query terminal 2 provided by the embodiment comprises an embedded hardware system based on an ARM9 architecture and an embedded software system which is embedded in the hardware system and is based on a Linux operating system as an application bottom layer.
The embedded hardware system based on ARM9 architecture comprises a main board, an expansion board card and a shell. The motherboard includes a core circuit and a peripheral interface circuit. The core circuit comprises an ARM9 architecture processor 8, a power supply and reset circuit, a clock circuit, a 1GB SDRAM data memory 6 and a 32G NAND FLASH program memory 7. The expansion board card comprises a TD-LTE wireless communication module, is an independent circuit board and is connected with the main board through a socket. The core board card is connected with the expansion board card in a plugging mode, and the expansion board card is connected with the TFT display module in a flexible flat cable. The peripheral interface circuit is connected to the ARM9 architecture processor 8 core board card and comprises a NOR FLASH, a serial communication interface, an Ethernet interface and a TFT screen interface. And the NOR FLASH is used for storing the starting program of the ARM9 framework processor. And the serial communication interface is used for realizing the communication of all the partial circuits and components. And the TFT screen interface is connected with the TFT multi-touch display screen. The front panel of the housing is used as an operation panel, and as shown in fig. 3, a man-machine interaction module is further arranged on the front panel, and the man-machine interaction module comprises an 8-inch TFT multi-touch display screen 11 and a Home key 13. The TFT multi-touch display 11 is provided with a virtual keyboard and a query display interface, which are respectively used for inputting and outputting query conditions and queried drawing result data.
In this embodiment, the ARM9 architecture processor 8 adopts an S3C2410X processor, which is a 32-bit embedded RISC microprocessor with a peripheral connection as shown in FIG. 2. The power supply and the reset circuit adopt a 5V direct current power supply to supply power for the whole terminal. The clock circuit, the S3C2410X processor needs two clock inputs, one is the processor working clock, and the other is the RTC clock. The working clock of the processor is an active crystal oscillator of 12MHz, an external capacitor is not needed, the internal PLL is used for doubling the frequency to 200MHz, the RTC clock is a passive crystal oscillator of 32.768KHz, and the circuit is identical to the clock circuit used by the following Ethernet interface chip CS 8900A. The 1GB SDRAM data memory 6 is characterized by large capacity, high access speed and low cost, and is used for storing executable codes, and because the S3C2410X ARM processor is internally provided with a memory controller and refresh logic, the selected SDRAM can be directly connected with the ARM processor 8 through an interface circuit. The 32G NAND FLASH program memory 7 is a K9F1208U0B program memory chip, has the capacity of 32G and 8bit data width and is used for solidifying and storing a kernel, a file system and an application program of a Linux operating system.
In this embodiment, the NOR FLASH is a 64K capacity SST39VF200A type NOR FLASH chip, and is used for storing the start program, and the ARM processor starts through the start program stored in the NOR FLASH.
The TFT multi-touch display 11 is used as a man-machine interface, and a virtual keyboard and a query display interface are provided therein for inputting and outputting data, respectively. The man-machine interface has large size, large display data amount and clear display graph, and can be used for moving the grid structure graph by using gestures. A Home key 13 is arranged below the screen and is used for returning to the main interface of the program, so that the method is convenient and practical.
The software system, as shown in fig. 4, comprises a bottom Linux operating system program and an upper power distribution network grid structure information query application program, wherein the bottom Linux operating system program comprises a Linux embedded operating system kernel and a hardware circuit driver and is used for directly operating a hardware system and responsible for hardware resource allocation, scheduling and management; the upper layer power distribution network grid structure information inquiry application program is developed by using a JAVA high-level language and an object-oriented method based on an operating system JAVA virtual machine, realizes multi-port communication through multithreading based on a TCP/IP protocol stack embedded in the operating system and is used for finishing inquiry display and updating maintenance of power grid data, equipment data, position data and overall structure graphic data, and generating a grid structure diagram on a TFT multi-touch display screen by acquiring power distribution network grid structure data from a remote network server; and simultaneously obtain data such as equipment accounts. The upper layer power distribution network grid structure information inquiry application program comprises a user interaction module, a data processing module, a data display module and a data communication module. The user interaction module is used for realizing the input and browsing functions of a user; the data processing module is used for realizing the format conversion of the combined sending and receiving graphic information of the query conditions; the data display module is used for controlling the display mode of the data and window control; and the data communication module is used for completing the Socket asynchronous communication function and realizing the sending of the query condition and the receiving of the returned result data.
The core of the hardware architecture in this embodiment is the processor of the S3C2410X ARM9 architecture, and after the power circuit supplies power to the system, the S3C2410X processor reads the boot program from the NOR FLASH to its RAM, so as to complete the system boot process. After the workflow, the boot program of the embedded operating system Linux stored in NAND FLASH is loaded. After the Linux of the embedded operating system is operated, an upper-layer grid structure information query application program is automatically operated, and the functions of grid structure data query, display, processing, updating and the like are responsible.
Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present invention, and are not limiting; although the invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some or all of the technical features thereof can be replaced with equivalents; such modifications and substitutions do not depart from the spirit of the corresponding technical solutions, which are defined by the scope of the appended claims.
Claims (5)
1. The utility model provides a portable distribution network grid structure information inquiry terminal which characterized in that: the embedded software system comprises an ARM9 architecture-based embedded hardware system and an embedded software system which is embedded in the hardware system and is based on a Linux operating system as an application bottom layer;
the embedded hardware system based on ARM9 architecture comprises a main board, an expansion board card and a shell;
the main board comprises a core circuit and a peripheral interface circuit; the expansion board card comprises a TD-LTE wireless communication module which is an independent circuit board and is connected with the main board through a socket; the shell is provided with various physical interfaces corresponding to the peripheral interface circuit and is connected with a socket of the peripheral interface circuit through a flat cable; a man-machine interaction module is arranged on the front end panel of the shell, and comprises an 8-inch TFT multi-touch display screen and a Home key;
the core circuit comprises an ARM9 architecture processor, a power supply and reset circuit, a clock circuit, a 1GB SDRAM data memory and a 32G NAND FLASH program memory, and all modules are communicated through a serial bus; the TFT multi-touch display screen is connected with the SPI interface of the main board through a data flat cable;
the ARM9 framework processor is a kernel 32-bit embedded RISC microprocessor and is used for loading a guiding program of an embedded operation system Linux by combining other core circuits and peripheral interface circuits, automatically running an upper-layer power distribution network grid structure information inquiry application program and finishing inquiry, display, processing and updating of grid data; the power supply and the reset circuit adopt a 5V direct current power supply to supply power for the whole terminal; the clock circuit comprises two clock inputs, one is an ARM9 architecture processor working clock, and the other is an RTC clock; the 1GB SDRAM data memory is used for storing executable codes, comprises Linux process and grid structure inquiring software executing codes, and is directly connected with the ARM9 architecture processor; the 32G NAND FLASH program memory is used for solidifying and storing a Linux operating system, a bootstrap program, a Linux-based hardware device driver and an upper-layer power distribution network grid structure information inquiry application program; the TD-LTE wireless communication module is used for realizing the connection of a TD-LTE wireless network, under the control of the ARM9 framework processor, data is transmitted to a remote network distribution network grid structure information management system server through the Internet, and after the remote network distribution network grid structure information management system server generates feedback data, the feedback data is received by the TD-LTE wireless communication module through the Internet, and the ARM9 framework processor is used for storing and displaying the data;
the peripheral interface circuit is connected to the ARM9 architecture processor core board card and comprises an NOR FLASH, a serial communication interface, an Ethernet interface and a TFT screen interface;
the NOR FLASH is used for storing the starting program of the ARM9 framework processor; the serial communication interface is used for realizing the communication of all the partial circuits and components; the TFT screen interface is connected with a TFT multi-touch display screen;
a virtual keyboard and a query display interface are arranged in the TFT multi-touch display screen and are respectively used for inputting and outputting query conditions and queried drawing result data;
the software system comprises a bottom Linux operating system program and an upper power distribution network grid structure information query application program, wherein the bottom Linux operating system program comprises a Linux embedded operating system kernel and a hardware circuit driver and is used for directly operating a hardware system and responsible for hardware resource allocation, scheduling and management; the upper layer power distribution network grid structure information inquiry application program is developed by using a high-level language and an object-oriented method based on an operating system JAVA virtual machine, realizes multi-port communication through multithreading based on a TCP/IP protocol stack embedded in the operating system and is used for finishing inquiry display and updating maintenance of power grid data, equipment data, position data and overall structure graphic data; the upper layer power distribution network grid structure information inquiry application program comprises a user interaction module, a data processing module, a data display module and a data communication module; the user interaction module is used for realizing the input and browsing functions of a user; the data processing module is used for realizing the format conversion of the combined sending and receiving graphic information of the query conditions; the data display module is used for controlling the display mode of the data and window control; and the data communication module is used for completing the Socket asynchronous communication function and realizing the sending of the query condition and the receiving of the returned result data.
2. The portable power distribution network grid structure information query terminal as set forth in claim 1, wherein: the development of the upper-layer power distribution network grid structure information inquiry application program uses the JAVA language facing the object.
3. The portable power distribution network grid structure information query terminal as set forth in claim 1, wherein: the ARM9 architecture processor is an S3C2410X processor.
4. A portable power distribution network grid structure information query terminal as claimed in claim 1 or 3, wherein: the ARM9 architecture processor has an active crystal oscillator with a working clock of 12MHz, and an external capacitor is not needed, and the frequency of the internal PLL is doubled to 200MHz; the RTC clock is a 32.768KHz passive crystal oscillator, and the circuit is the same as the clock circuit used by the Ethernet interface.
5. The portable power distribution network grid structure information query terminal as set forth in claim 1, wherein: the NORFLASH adopts an SST39VF200A type NOR FLASH chip with 64K capacity.
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