CN211958866U

CN211958866U - Exempt from wiring centralized control formula distribution automation terminal

Info

Publication number: CN211958866U
Application number: CN202020856271.8U
Authority: CN
Inventors: 谢海涛; 卢东亮
Original assignee: Zhuhai Radiance Electric Co ltd
Current assignee: Zhuhai Radiance Electric Co ltd
Priority date: 2020-05-20
Filing date: 2020-05-20
Publication date: 2020-11-17
Anticipated expiration: 2030-05-20

Abstract

The utility model provides an exempt from to work a telephone switchboard centralized control formula distribution automation terminal, this terminal includes by first power module, first anti surge protection module, first EMC filtering module, first central processing unit, first ethernet module, the terminal central processing unit and a plurality of distribution terminal subunit that the WIFI module constitutes, a plurality of distribution terminal subunits are used for gathering distribution equipment's electrical signal, terminal central processing unit passes through and communicates between WIFI module and a plurality of distribution terminal subunits. The utility model has the advantages of simple structure and reasonable design, exempt from the wiring, can carry out fault location rapidly and can change with the electricity, can guarantee the power supply continuity and the reliability of distribution network to satisfy smart power grids's demand.

Description

Exempt from wiring centralized control formula distribution automation terminal

Technical Field

The utility model relates to a power electronic technology field especially relates to a centralized control formula distribution automation terminal exempts from to work a telephone switchboard.

Background

With the rapid development of economy, the demand for electric power is higher and higher, and the requirements on the quality of electric energy and the reliability of power supply are higher and higher. The distribution automation terminal is a novel automation power device integrating computer technology, information and communication, data transmission, control technology, modernized equipment and management, and aims to improve power supply reliability, improve power quality, provide high-quality service for users, reduce operation cost, reduce labor intensity of operation and maintenance personnel, and is widely applied to transformer substations, switch stations, distribution stations, ring main units and other places needing monitoring, is an important component part for construction of a distribution automation system, is located in a basic layer of the distribution automation system, is responsible for controlling and adjusting the distribution equipment, rapidly carries out real-time data monitoring on multiple lines, fault detection, fault area positioning, isolation, non-fault area recovery power supply and the like, and is an important means for improving power supply reliability and ensuring healthy and efficient operation of the distribution network.

However, for a long time, because the distribution automation degree of the power system is not high, line faults often occur, which causes overlong power failure time or reduces power quality, which brings great economic loss to society, and in the conventional distribution automation terminal, a CPU motherboard adopts a single chip as a core board, the connection of all peripheral templates is complex, hot plugging cannot be performed, and once a fault occurs, the maintenance is difficult, the cost is high, the power failure time becomes very long, and simultaneously, all secondary lines need to be removed in the maintenance and replacement process to pull out the circuit board for replacement, which indirectly corresponds to reinstallation construction, which greatly affects the first-aid repair efficiency and increases the social economic loss, so that there is no distribution automation terminal which has simple structure, reasonable design, no wiring, can rapidly perform fault location and can be replaced in a live mode, and the power supply continuity and reliability of the power distribution network are ensured so as to meet the requirements of the intelligent power grid.

As shown in fig. 1, fig. 1 is a conventional distribution automation core unit 100, which is composed of a power panel, a telecommunications panel, a CPU panel, a remote control panel, and a telemetry panel, each circuit board has been fixed at a corresponding position, and can only achieve data acquisition of 8 loops to the maximum, wherein the maximum number can only support acquisition of 60 remote communications, and the maximum number of control switches is 8, and if data information of more loops needs to be acquired, the data acquisition can only be achieved by increasing the number of the distribution automation core unit, so that a cabinet with a larger space is required to be installed, and the workload of wiring can also be increased exponentially, thereby increasing the production cost, and thus the conventional distribution automation core unit has limitations of weak expansibility and complex wiring.

As shown in fig. 2 and 3, the 8-loop distribution automation terminal in fig. 2 and the 16-loop distribution automation terminal in fig. 3 are respectively assembled by a cabinet, a distribution automation core unit 100, a plurality of current-voltage terminals, a distribution automation power module, a plurality of wires, guide rails, wire slots, and other accessories. The difference is that a 16-loop distribution automation terminal needs 2 distribution automation core units 100, current and voltage wiring terminals, wires, guide rails, wire grooves and accessory accessories are doubled, the number of the wires is doubled, but the flow is almost the same in the installation and production process, the corresponding wires are prepared first, the wiring terminals are pressed, and wire numbers are threaded; secondly, a current and voltage wiring terminal, a guide rail, a wire groove and other accessory accessories are required to be installed in the cabinet; finally, wires prepared in advance are connected to corresponding current and voltage wiring terminals in the cabinet according to the technical requirements of drawings, and data information acquired by the 8-loop distribution automation terminal is remote signaling, remote measuring and remote controlling data corresponding to 8 switches, therefore, each PCB of the distribution automation core unit is required to be connected with a conductor, and then, with the addition of external module wiring, a distribution automation terminal is required to be connected with thousands of conductors, the data information collected by the 16-circuit distribution automation terminal is more than 2 times that of the 8-circuit distribution automation terminal, the wiring quantity is also 2 times that of the 8-circuit distribution automation terminal, thus, the installation and production of the 16-loop power distribution automatic terminal formed by connecting thousands of conductors put higher requirements on production personnel, and the probability of wrong connection is greatly increased.

In addition, the traditional power distribution automation terminal can carry out parameter configuration only by connecting a notebook computer with a power distribution automation terminal through a network cable after the traditional power distribution automation terminal needs to be debugged or operation and maintenance personnel arrive at the site, and the operation and maintenance personnel need to operate once on the site every time one parameter is modified, so that the labor intensity of the operation and maintenance personnel is greatly increased, and the maintenance cost is also increased; the traditional distribution automation terminal can acquire various signals only by connecting a large number of secondary lines, once a fault occurs, a large amount of time is needed to find a fault point, the power failure time is prolonged, and the economic loss is large; when the technical requirements of the distribution automation master station change, the traditional distribution automation terminal cannot modify or upgrade the system on line and remotely, and debugging or operation and maintenance personnel need to go to the field to modify and upgrade the database.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a simple structure, reasonable in design, exempt from the wiring, can carry out fault location rapidly and can electrified the wiring centralized control formula distribution automation terminal that changes.

In order to realize foretell main objective, the utility model provides a pair of exempt from to work a telephone switchboard centralized control formula distribution automation terminal installs in distribution equipment, include: the terminal central processing unit comprises a first power module, a first anti-surge protection module, a first EMC filtering module, a first central processing unit, a first Ethernet module and a WIFI module, and a plurality of power distribution terminal subunits, wherein the plurality of power distribution terminal subunits are used for acquiring electrical signals of power distribution equipment, and the terminal central processing unit is communicated with the plurality of power distribution terminal subunits through the WIFI module; wherein, the output of the first power supply module is connected to the input of the first anti-surge protection module, the output of the first anti-surge protection module is connected to the input of the first EMC filter module, the output of the first EMC filter module is connected to the first central processing unit, and the first central processing unit is connected with the first ethernet module.

In a further scheme, the power distribution terminal subunit processes the acquired electrical signals through a built-in processor, establishes wireless network connection with the terminal central processing unit through the WIFI module, transmits the electrical signals after signal processing to the first central processing unit, and sends control instructions to the power distribution terminal subunit through the WIFI module according to the received data signals.

In a further scheme, the power distribution terminal subunit comprises a second power module, a second anti-surge protection module, a second EMC filtering module, an acquisition module, an AD module, a second central processor, a relay module, a photoelectric isolation module, a second ethernet module, and the WIFI module, wherein an output end of the second power module is connected with an input end of the second anti-surge protection module, output ends of the second anti-surge protection module and the acquisition module are both connected with an input end of the second EMC filtering module, an output end of the second EMC filtering module is connected with an input end of the AD module, an output end of the AD module is connected with the second central processor, an I/O interface of the second central processor is connected with the relay module through photoelectric isolation, and the second central processor is connected with the second ethernet module, the second Ethernet module is connected with the WIFI module.

In a further scheme, the second power module comprises a 24V power module and a voltage reduction module, the acquisition module comprises a switching value acquisition module and an analog value acquisition module, and the AD module comprises an ADC acquisition module and an a/D digital-to-analog conversion module; the 24V power supply module is used for providing working power supply for the power distribution terminal subunit, the voltage reduction module is used for converting 24VDC working voltage provided for the power distribution terminal subunit into 5VDC voltage, the switching value acquisition module is used for external switching value input, and the analog value acquisition module is used for external analog value input; the ADC acquisition module is used for acquiring external switching value and external analog quantity, and the A/D conversion module is used for converting the external switching value and the external analog quantity acquired by the ADC acquisition module into digital signals for the second central processing unit to process data.

In a further scheme, after the power distribution terminal subunit receives the control instruction sent by the terminal central processing unit, the second central processing unit controls the relay module to act by driving the I/O interface and the photoelectric isolation.

In a further scheme, the terminal central processing unit further comprises a display touch screen and a PC (personal computer) terminal, and the display touch screen and the PC terminal perform information interaction with the first central processing unit through the WIFI module and the first Ethernet module respectively.

Therefore, the utility model discloses a carry out data exchange through WIFI between central processing unit and the subunit, need not the wiring, can install in any place, realize remote configuration through mobile terminal, fortune dimension personnel basically need not go to the scene again and maintain, very big reduction the maintenance cost.

In addition, all subunits are independent of each other and do not influence each other, and the subunits can be installed at any place at will, and can realize instant messaging with the central processing unit of the distribution automation terminal through the internet or WIFI after being fixed and connected with a power supply.

Therefore, the utility model discloses fault diagnosis is fast, convenient maintenance, simple structure, expansibility are strong, can arrange wantonly, and the expansibility is strong, exempt from the wiring only need through wireless WIFI connect can, reduced the cost of labor widely, improved production efficiency.

Drawings

Fig. 1 is a schematic structural diagram of an 8-loop distribution network automation terminal core unit in the prior art.

Fig. 2 is a schematic structural diagram of an 8-loop distribution network automation terminal in the prior art.

Fig. 3 is a schematic structural diagram of a 16-loop distribution network automation terminal in the prior art.

Fig. 4 is a schematic structural diagram of an embodiment of a centralized distribution automation terminal without wiring according to the present invention, about 8-loop distribution automation terminal installation.

Fig. 5 is a schematic structural diagram of a 16-loop distribution automation terminal installation in an embodiment of a distribution automation terminal without centralized control of wiring.

Fig. 6 is a schematic structural diagram of a central processing unit of a terminal in an embodiment of a distribution automation terminal without centralized wiring control.

Fig. 7 is a schematic circuit diagram of a terminal central processing unit in an embodiment of the distribution automation terminal without centralized control of wiring of the present invention.

Fig. 8 is a schematic structural diagram of a distribution terminal subunit in an embodiment of the distribution automation terminal of the present invention.

Fig. 9 is a schematic circuit diagram of a distribution terminal subunit in an embodiment of a centralized distribution automation terminal without wiring.

Fig. 10 is a schematic diagram of a terminal cpu communicating with each distribution terminal subunit in an embodiment of the distribution automation terminal of the present invention.

The present invention will be further explained with reference to the drawings and examples.

Detailed Description

Referring to fig. 4 to 10, the utility model discloses a centralized control formula distribution automation terminal exempts from to work a telephone switchboard installs in distribution equipment, include by first power module, first anti surge protection module 15, first EMC filter module 16, first central processing unit 17, first ethernet module 18, terminal central processing unit 60 and a plurality of distribution terminal subunit 50 that WIFI module 23 constitutes, a plurality of distribution terminal subunit 50 are used for gathering distribution equipment's electrical signal, terminal central processing unit 60 communicates through between WIFI module 23 and a plurality of distribution terminal subunit 50. The first power module includes a commercial power input end and a power conversion module 14.

Wherein, the output of the first power supply module is connected to the input of the first anti-surge protection module 15, the output of the first anti-surge protection module 15 is connected to the input of the first EMC filter module 16, the output of the first EMC filter module 16 is connected to the first central processor 17, and the first central processor 17 is connected with the first ethernet module 18.

In this embodiment, the terminal central processing unit 60 further includes a display touch screen and a PC terminal, and the display touch screen and the PC terminal perform information interaction with the first central processing unit 17 through the WIFI module and the first ethernet module 18, respectively. Wherein, the display touch screen can be a 10.1 inch touch screen 26, and the PC terminal can be a PDA palm computer 27.

As shown in fig. 4 and 5, the distribution automation terminal of the present invention is assembled by the cabinet 70, the distribution terminal subunit 50, the terminal central processing unit 60, the distribution automation power module, and other accessories. The distribution automation terminals of the 8 loops and the 16 loops are the same in the installation and production process, and the difference is that the distribution automation terminal of the 16 loops is only provided with 4 distribution terminal subunits 50 more than that of the 8 loops, only power needs to be provided for the subunits, then each subunit is subjected to communication configuration through a 10.1-inch touch screen, and the subunits and the central processing unit perform data exchange through the WIFI module and do not need wiring any more; the distribution automation terminal replaces the traditional distribution automation terminal needing a large amount of wiring, really realizes that the distribution automation terminal is free from wiring, saves the workload caused by the need of connecting secondary wires, and can properly increase or delete distribution automation subunits according to specific conditions so as to meet different technical requirements.

Specifically, the terminal central processing unit 60 of this embodiment is integrated by the power conversion module 14, the first anti-surge protection module 15, the first EMC filter module 16, the first central processor 17, the first ethernet module 18, the protocol 19, and the WIFI module. The working principle is as follows: the mains supply AC220V is converted into 5VDC voltage through the mains supply access terminal by the power conversion module 14, and interference components in 5V are removed by the modules of anti-transient, anti-surge, EMC capacitance filtering, etc., thereby further ensuring that the power supply for each module is an ideal power supply. After the power distribution terminal subunit 50 is installed, the PDA handheld computer 27 performs parameter configuration on the terminal central processing unit 60 through the internet module 21 or the WIFI module 23, for example, IP addresses, port numbers, gateways, and the like of the terminal central processing unit 60 and the subunits are set, after setting, the power distribution terminal subunit 50 can communicate with the terminal central processing unit 60 through the internet module 21 or the WIFI module 23 to realize data exchange, and the terminal central processing unit 60 uploads data to the power distribution automation master station 20 through a communication protocol of the ethernet module 104.

In this embodiment, the terminal central processing unit 60 and the sub-units exchange data through WIFI, do not need to be wired, and can be installed anywhere, and the PDA palm computer 27 is used to implement remote configuration, so that the operation and maintenance personnel basically do not need to go to the site for maintenance, thereby greatly reducing the maintenance cost. The remote parameter modification is realized through the PDA (personal digital assistant) palm computer 27, the parameter configuration can be carried out at any time and any place, the maintenance cost is saved to the maximum extent, and the labor intensity of operation and maintenance personnel is reduced.

In this embodiment, the power distribution terminal subunit 50 performs signal processing on the acquired electrical signal through the built-in processor, establishes wireless network connection with the terminal central processing unit 60 through the WIFI module 13, transmits the electrical signal after the signal processing to the first central processing unit 17, and the first central processing unit 17 transmits a control instruction to the power distribution terminal subunit 50 through the WIFI module 23 according to the received data signal.

Wherein, the distribution terminal subunit 50 comprises a second power supply module, a second anti-surge protection module 1, a second EMC filtering module 2, an acquisition module, an AD module and a second central processing unit 7, relay module 8, photoelectric isolation module 9, second ethernet module 11, WIFI module 13, the output of second power module is connected with the input of second anti-surge protection module 1, the output of collection module all is connected with the input of second EMC filtering module 2, the output of second EMC filtering module 2 is connected with the input of AD module, the output and the second central processing unit 7 of AD module are connected, the IO interface of second central processing unit 7 passes through photoelectric isolation and is connected with relay module 8, second central processing unit 7 is connected with second ethernet module 11, second ethernet module 11 is connected with WIFI module 13.

Further, the second power module comprises a 24V power module 31 and a voltage reduction module 32, the acquisition module comprises a switching value acquisition module 3 and an analog value acquisition module 4, and the AD module comprises an ADC acquisition module 5 and an A/D digital-to-analog conversion module 6; the 24V power supply module 31 is configured to provide a working power supply for the distribution terminal subunit 50, the voltage reduction module 32 is configured to convert a 24VDC working voltage provided to the distribution terminal subunit 50 into a 5VDC voltage, the switching value acquisition module 3 is an external switching value input, and the analog value acquisition module 4 is an external analog value input; the ADC acquisition module 5 is configured to acquire an external switching value and an external analog value, and the a/D digital-to-analog conversion module 6 is configured to convert the external switching value and the external analog value acquired by the ADC acquisition module 5 into digital signals for the second central processing unit 7 to perform data processing.

Further, after the distribution terminal subunit 50 receives the control instruction sent by the terminal central processing unit 60, the second central processing unit 7 controls the relay module 8 to operate by driving the I/O interface 10 and performing photoelectric isolation.

Specifically, the power distribution terminal subunit 50 of this embodiment is integrated by the 24V power module 31, the second anti-surge protection module 1, the second EMC filter module 2, the external switching value acquisition module 3, the external analog value acquisition module 4, the ADC acquisition module 5, the a/D digital-to-analog conversion module 6, the second central processing unit 7, the relay module 8, the photoelectric isolation 9, the I/O interface 10, the second ethernet module 11, and the WIFI module 13. The working principle is as follows: after the commercial power AC220V is converted into DC24V voltage by the power conversion module 14, the voltage is supplied to the 24V power module 31 of the distribution terminal subunit 50 to work, and then the voltage of the DC24V is reduced by the voltage reduction module 32 to DC5V in which each module can normally work, in order to obtain more stable and more ideal 5V, modules for transient resistance, surge resistance, capacitance filtering and the like are added, interference components such as high frequency waves, noise waves and the like in the 5V after voltage reduction are further filtered and shielded, and the power supplied to each module to work is ensured to be an ideal power; when external switching values and analog values are collected, the external switching values and analog values are collected by the switching value collection module 3 and the analog value collection module 4 of the power distribution terminal subunit 50, the external switching values and analog values are filtered by the second EMC filter module 2, and then the analog signals and the analog values are stable and ideal, the ADC sampling module processes the ideal switching values and analog values and transmits the ideal signals to the A/D digital-to-analog conversion module 6, the A/D digital-to-analog conversion module 6 converts the analog signals such as the switching values and the analog values into digital signals and provides the digital signals to the second central processing unit 7 for data processing, the second central processing unit 7 performs logic operation according to the programmed internal program to drive peripheral hardware circuits such as the I/O interface 10 and the photoelectric isolation interface to complete corresponding logic operation, and the peripheral hardware circuits such as the I/O interface 10 and the photoelectric isolation interface are used for driving the peripheral hardware circuits, A relay module 8. In addition, the power distribution terminal subunit 50 can also exchange data with the terminal central processing unit 60 in a network manner such as an internet module and a WIFI module to complete various functions of power distribution automation, wherein the power distribution terminal subunit 50 can also perform network communication with a 10.1-inch touch screen and a PDA (personal digital assistant) palm computer 27 through the second ethernet module 11 and the WIFI module to realize functions such as parameter setting, network service configuration, man-machine interaction, online upgrading and maintenance system, and online real-time data monitoring.

In this embodiment, each distribution terminal subunit 50 is independent from each other, each subunit is not affected by each other, each subunit can be installed at any place of the cabinet, after the power supply is connected, instant communication with the distribution automation terminal central processing unit 60 can be realized through the internet module or the WIFI module, meanwhile, the instant communication can also be realized through a 10.1-inch touch screen, the PDA palm computer 27 performs network communication configuration on the distribution terminal subunit 50, constant value parameter setting and the like, the distribution automation function can be realized after parameter matching is successful, the tedious work of needing a large number of secondary lines is omitted, wiring is really avoided, fault points can be found and replaced without a large number of wiring and power failure, and economic loss can be reduced to the lowest.

In practical application, after the distribution automation terminal obtains the voltage of AC220V from the commercial power, the voltage is converted into the voltage of DC5V by AC220V after passing through the power conversion module 14, and the voltage is supplied to the first anti-surge protection module 15, the waveform of the external interference signal is more ideal and stable after passing through the anti-transient and anti-surge modules, and the external strong electromagnetic interference signal is filtered by the first EMC filtering module 16, so that a 5V voltage source is generated. The 5V voltage source is mainly used for ensuring that the first central processing unit 17, the first ethernet module 18 and the WIFI module 23 work normally, and is not prone to malfunction caused by external interference.

Each power distribution terminal subunit 50 (such as power distribution terminal subunit 1, power distribution terminal subunit 2, power distribution terminal subunit 3.. after power distribution terminal subunit N) will gather the electrical signal, after inside CPU arithmetic processing, carry out wireless connection through WIFI module 13, convey data to first central processing unit 17 in real time and carry out data processing, after first central processing unit 17 is inside to carry out logical operation, send the execution command to power distribution terminal subunit 50 through WIFI module 23, power distribution terminal subunit 50 drives circuits such as optoelectronic isolation 9, I/O interface 10 after second central processing unit 7 program processing again, realize relay module 8 drive, thereby reach the function of signal action. Wherein, each distribution terminal subunit 50 and first central processing unit 17 carry out data interaction and all realize through wireless WIFI, each parameter setting of each distribution terminal subunit 50, network configuration and the maintenance of system are all can be through smart mobile phone 24, 10.1 cun touch-sensitive screen 26, PDA palm computer 27 links up wireless WIFI long-range realization, smart mobile phone 24 only need scan the two-dimensional code on the distribution automation terminal, installation APP configuration software just can carry out real-time data monitoring to the distribution automation terminal, modify the definite value, sampling calibration, remote control operation, receive and look over the SOE etc. of distribution automation terminal, simultaneously 10.1 cun touch-sensitive screen 26, PDA palm computer 27 also can realize the remote operation and the control to the distribution automation terminal through WIFI, accomplish anytime and anywhere, the running state of distribution automation terminal is monitored at all times. When the distribution terminal subunit 50 collects that primary equipment has telecommand deflection, the distribution terminal subunit 50 transmits telecommand deflection information to the first central processing unit 17 through a WIFI signal, the first central processing unit 17 carries out logic operation and then uploads the telecommand deflection information to the distribution automation main station 20 after the telecommand deflection information is transmitted to the distribution automation main station through the first Ethernet module 18 and the IEC104 protocol 19, the distribution automation main station 20 can monitor the running state of the distribution automation terminal in real time, certainly, the distribution automation main station 20 can also carry out general calling on the distribution automation terminal through the IEC104 protocol 19 and read the collection information of the distribution automation terminal in real time, the online remote upgrading maintenance system 22 can be realized by connecting the first Ethernet module 18 with the Internet module 21, debugging or operation and maintenance personnel are not needed to carry out field upgrading maintenance, and timeliness of response are guaranteed.

Therefore, the utility model discloses a distribution automation terminal compares with traditional distribution automation terminal has following several characteristics: 1. exempt from the wiring: signals of primary equipment are collected between each power distribution terminal subunit 50 and the terminal central processing unit 60 without connection wires, and data communication and exchange are carried out through wireless WIFI in the whole process; 2. the system can be upgraded and maintained remotely: the online remote upgrade maintenance system 22 is realized by connecting the first Ethernet module 18 with the Internet module 21; 3. the communication mode is diversified: the utility model discloses a distribution automation terminal has smart mobile phone 24, 10.1 cun touch-sensitive screen 26, PDA palm computer 27, only needs to link wireless WIFI to scan the two-dimensional code can realize the control to distribution automation terminal; 4. the expansibility is strong: the utility model discloses a distribution automation terminal is because of each distribution terminal subunit 50 all is mutual independence work, also mutual independence carries out data exchange through wireless WIFI with terminal central processing unit 60, consequently can expand at will, only need after the expansion carry out network parameter configuration to each distribution terminal subunit 50 through smart mobile phone 24, 10.1 cun touch-sensitive screen 26, PDA palm computer 27 etc. can, do not need a large amount of wiring.

In addition, all subunits are independent of each other and do not influence each other, and the subunits can be installed anywhere at will, and can realize instant messaging with the distribution automation terminal central processing unit 60 through the internet or WIFI after being fixed and connected with a power supply.

This embodiment also provides a centralized control formula distribution automation terminal system exempts from to work a telephone switchboard, includes: foretell exempt from central control formula distribution automation terminal of working a telephone switchboard, distribution automation master station 20, mobile terminal (like smart mobile phone 24), remote upgrade maintenance system 22, internet module 12 and internet module 21, distribution automation terminal carries out network communication through protocol with distribution automation master station 20, remote upgrade maintenance system 22 passes through internet module 21, internet module 21 carries out network communication with distribution automation terminal, mobile terminal carries out network communication with distribution automation terminal through the wiFi module, wherein, distribution automation terminal's terminal central processing unit 60 communicates between WIFI module 23 and a plurality of distribution terminal subunit 50, each distribution terminal subunit 50 of distribution automation terminal is through inside self built-in WIFI module 13, internet module 12 establishes wireless ad hoc network in order to realize data sharing.

The first ethernet module 18 is used for exchanging data with the first central processor 17, the WIFI module 23, the internet module 21 and the power distribution automation master station 20, and the second ethernet module 11 is used for exchanging data with the second central processor 7, the WIFI module 13 and the internet 12.

The power distribution automation terminal establishes communication connection with the power distribution automation master station 20 through a protocol so as to realize three-remote function; the distribution automation master station 20 is used for monitoring and controlling distribution automation terminals so as to realize three remote functions of distribution automation; the internet module is used for establishing network communication between the power distribution automation terminal and the internet; the remote upgrade maintenance system 22 performs network communication with the distribution automation terminal through an internet module to realize remote upgrade and maintenance of a database and system files of the distribution automation terminal; the mobile terminal is used for monitoring, receiving and controlling the distribution automation terminal and monitoring the running state of the distribution automation terminal in real time; and APP configuration software 25 is installed on the mobile terminal and used for monitoring the distribution automation terminal in real time.

A plurality of distribution terminal subunits 50 are sequentially installed in the distribution equipment cabinet, and communicate with the terminal central processing unit 60 through the WIFI module or the network cable, so as to realize data acquisition and forwarding, and upload to the distribution automation main station 20.

In a specific application, the 24V power module 31 is used to provide a working power supply for normal operation to the distribution terminal subunit 50; the voltage reduction module 32 is used for converting the working voltage DC24V of the distribution terminal subunit 50 into DC5V to supply to each module of the subunit for normal operation; the power conversion module 14 is used for performing voltage conversion and providing a normal working power supply for each module and each subunit; the anti-surge protection modules (1, 15) are used for resisting external input electromagnetic interference; the EMC filtering modules (2 and 16) are used for shielding other electromagnetic interference during external switching value and analog quantity acquisition and enabling the waveform to be closer to an ideal waveform; the switching value acquisition module 3 is used for inputting external switching values, and the analog value acquisition module 4 is used for inputting external analog values; the ADC acquisition module 5 is used for acquiring external switching values and analog values; the A/D digital-to-analog conversion module 6 is used for converting the external switching value and the analog value acquired by the ADC acquisition module 5 into digital value signals for the central processing unit to process data; the central processing units (7, 17) are used for processing various signal data, including external switch quantity, external analog quantity, communication protocol, system file, program and the like; the relay module 88 is used to drive external devices; the photoelectric isolation 9 is used for isolating optical signals and electric signals; the I/O interface 10 is used for inputting and outputting signals; the Ethernet modules (11, 18) are used for communicating with the central processor, the WIFI module, the Internet and the main station to exchange data; the protocol 19 is used for communication link between the distribution automation terminal and the distribution automation master station 20 to realize the function of three remote places; the distribution automation master station 20 is used for monitoring and controlling distribution automation terminals to realize the functions of distribution automation three remote; the internet modules (12, 21) are used for the power distribution automation terminal to carry out network communication with the internet; the remote upgrading maintenance system 22 is used for the computer to perform network communication with the distribution automation terminal through the internet module, so as to realize remote upgrading and maintenance of a database and system files of the distribution automation terminal; the WIFI modules (13, 23) are used for communicating with various modules and devices, such as an Ethernet module, a 10.1-inch touch screen, a PDA palm computer 27, a smart phone 24 and a power distribution terminal subunit 50; the smart phone 24 is used for monitoring, receiving and controlling the distribution automation terminal and mastering the running state of the distribution automation terminal in real time; the intelligent mobile phone is provided with APP configuration software 25 for monitoring the distribution automation terminal in real time; the 10.1-inch touch screen 26 is used for displaying and monitoring the telecommunication quantity and the telemetering measurement of the distribution automation terminal; the PDA palm computer 27 is used for monitoring the distribution automation terminal in real time in a middle-short distance field such as a duty room; each distribution terminal subunit 50 is configured to collect various electrical signals of the primary device, and transmit the electrical signals to the central processing unit for data processing in real time through WIFI or the internet. The control modules are independent from each other and support hot plugging, so that the equipment can be maintained or repaired and replaced in daily life no matter the equipment is in a running or power-off state, even when a transformer substation or a power distribution room needs capacity expansion, can be expanded according to the expanded path number, only needs to increase the distribution terminal subunit 50 properly, because each distribution terminal subunit 50 integrates the WIFI module and the INTERNET module, each subunit can perform communication connection only in the same network segment, thereby realize data interchange, only need like this to install distribution terminal subunit 50 in the rack through WIFI or super five types of net twine can with distribution automation terminal central processing unit 60 communicate, realize data acquisition and forward, upload distribution automation main website 20, saved the work load that needs connect the secondary line, greatly improved fortune dimension personnel's work efficiency.

Therefore, the utility model discloses a distribution terminal subunit's each item parameter is set, the maintenance of network configuration and system is upgraded and all to be passed through the smart mobile phone, touch display screen or PDA palm computer are wireless WIFI realization remote control even more, can carry out real-time data monitoring to distribution automation terminal, modify the definite value, the sampling calibration, remote control operation, receive and look over distribution automation terminal's SOE and so on, also can realize the remote operation and the control to distribution automation terminal through WIFI simultaneously, accomplish anytime and anywhere, the running state at anytime and anywhere monitoring distribution automation terminal, can realize long-range modification parameter, accomplish anytime and anywhere and carry out parameter configuration, the maintenance cost has been saved and the intensity of labour who fortune dimension personnel has been reduced to the at utmost.

Therefore, the utility model discloses can diagnose the location to the fault point fast, reduce the power off time, be convenient for fortune dimension personnel maintain in distribution automation terminal operation process and change, maintain, reduce the maintenance cost, also be simultaneously in order to simplify the production technology of enterprise in the production process, reduce the cost of labor, improve production efficiency, improve commonality, the expansibility of product, adapt to different areas, different technical requirement's scene.

It should be noted that the above is only the preferred embodiment of the present invention, but the design concept of the present invention is not limited thereto, and all the insubstantial modifications made by using the design concept of the present invention also fall within the protection scope of the present invention.

Claims

1. The utility model provides a exempt from to work a telephone switchboard centralized control formula distribution automation terminal installs in distribution equipment, its characterized in that includes:

the terminal central processing unit comprises a first power module, a first anti-surge protection module, a first EMC filtering module, a first central processing unit, a first Ethernet module and a WIFI module, and a plurality of power distribution terminal subunits, wherein the plurality of power distribution terminal subunits are used for acquiring electrical signals of power distribution equipment, and the terminal central processing unit is communicated with the plurality of power distribution terminal subunits through the WIFI module;

wherein, the output of the first power supply module is connected to the input of the first anti-surge protection module, the output of the first anti-surge protection module is connected to the input of the first EMC filter module, the output of the first EMC filter module is connected to the first central processing unit, and the first central processing unit is connected with the first ethernet module.

2. The distribution automation terminal of claim 1, wherein:

the power distribution terminal subunit processes the collected electric signals through the built-in processor, wireless network connection is established between the WIFI module and the terminal central processing unit, the electric signals after signal processing are transmitted to the first central processing unit, and the first central processing unit sends control instructions to the power distribution terminal subunit through the WIFI module according to the received data signals.

3. The distribution automation terminal of claim 2, wherein:

the power distribution terminal subunit comprises a second power supply module, a second anti-surge protection module, a second EMC filtering module, an acquisition module, an AD module, a second central processing unit, a relay module, a photoelectric isolation module, a second Ethernet module and the WIFI module, the output end of the second power supply module is connected with the input end of the second anti-surge protection module, the output ends of the second anti-surge protection module and the acquisition module are connected with the input end of the second EMC filtering module, the output end of the second EMC filtering module is connected with the input end of the AD module, the output end of the AD module is connected with the second central processing unit, the I/O interface of the second central processing unit is connected with the relay module through photoelectric isolation, the second central processing unit is connected with the second Ethernet module, and the second Ethernet module is connected with the WIFI module.

4. The distribution automation terminal of claim 3, wherein:

the second power supply module comprises a 24V power supply module and a voltage reduction module, the acquisition module comprises a switching value acquisition module and an analog value acquisition module, and the AD module comprises an ADC acquisition module and an A/D digital-to-analog conversion module;

the 24V power supply module is used for providing working power supply for the power distribution terminal subunit, the voltage reduction module is used for converting 24VDC working voltage provided for the power distribution terminal subunit into 5VDC voltage, the switching value acquisition module is used for external switching value input, and the analog value acquisition module is used for external analog value input; the ADC acquisition module is used for acquiring external switching value and external analog quantity, and the A/D conversion module is used for converting the external switching value and the external analog quantity acquired by the ADC acquisition module into digital signals for the second central processing unit to process data.

5. The distribution automation terminal of claim 4, wherein:

and after the power distribution terminal subunit receives the control instruction sent by the terminal central processing unit, the second central processing unit drives the I/O interface and the photoelectric isolation to control the relay module to act.

6. The distribution automation terminal of claim 5, wherein:

the terminal central processing unit further comprises a display touch screen and a PC (personal computer) end, and the display touch screen and the PC end perform information interaction with the first central processing unit through the WIFI module and the first Ethernet module respectively.