CN115035815A - Automatic screen display device for distribution network power operation identifier and implementation method - Google Patents
Automatic screen display device for distribution network power operation identifier and implementation method Download PDFInfo
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- 238000000034 method Methods 0.000 title claims abstract description 9
- 239000004973 liquid crystal related substance Substances 0.000 claims abstract description 58
- 238000003825 pressing Methods 0.000 claims description 9
- 238000002955 isolation Methods 0.000 claims description 8
- 238000012423 maintenance Methods 0.000 abstract description 19
- 239000011159 matrix material Substances 0.000 description 10
- 238000010586 diagram Methods 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 230000007246 mechanism Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 238000006467 substitution reaction Methods 0.000 description 2
- 238000004891 communication Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000013500 data storage Methods 0.000 description 1
- 230000006870 function Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- GOLXNESZZPUPJE-UHFFFAOYSA-N spiromesifen Chemical compound CC1=CC(C)=CC(C)=C1C(C(O1)=O)=C(OC(=O)CC(C)(C)C)C11CCCC1 GOLXNESZZPUPJE-UHFFFAOYSA-N 0.000 description 1
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
- G09F9/00—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements
- G09F9/30—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements
- G09F9/35—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements being liquid crystals
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
- G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
- G09G3/2092—Details of a display terminals using a flat panel, the details relating to the control arrangement of the display terminal and to the interfaces thereto
- G09G3/2096—Details of the interface to the display terminal specific for a flat panel
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
- G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
- G09G3/34—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source
- G09G3/36—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source using liquid crystals
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J13/00—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network
- H02J13/00001—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network characterised by the display of information or by user interaction, e.g. supervisory control and data acquisition systems [SCADA] or graphical user interfaces [GUI]
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
- Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
- Y04S10/00—Systems supporting electrical power generation, transmission or distribution
- Y04S10/40—Display of information, e.g. of data or controls
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- General Physics & Mathematics (AREA)
- Theoretical Computer Science (AREA)
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- Crystallography & Structural Chemistry (AREA)
- Computer Hardware Design (AREA)
- Human Computer Interaction (AREA)
- Power Engineering (AREA)
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Abstract
The invention relates to the technical field of electronic identification boards of equipment, in particular to an automatic screen display device for distribution network electric power operation identification and an implementation method. According to the invention, the states of the switch and the grounding switch of the distribution network switch cabinet are automatically collected and monitored, the display control and word library module of the main control panel displays the preset operation signboard information on the liquid crystal display screen, and the content of the physical power operation signboard is displayed in an automatic screen display mode under the condition that operation and maintenance personnel are not on site, so that the safety warning effect of the traditional power operation signboard is exerted, convenience is provided for the programmed operation of a distribution network, the blank of automatic screen display of the conventional power operation signboard is filled, and the physical strength and time of the operation and maintenance personnel are saved.
Description
Technical Field
The invention relates to the technical field of electronic identification boards of equipment, in particular to an automatic screen display device for distribution network power operation identification and an implementation method.
Background
The traditional distribution network electric power operation signboard is mainly used after electric power stop and transmission operation is finished, operation and maintenance personnel hang the physical signboard on the operating mechanism or close to the position, the safety warning effect is exerted, and electric misoperation is prevented. At present, the contents of a distribution network power operation signboard mainly comprise three types of operation signboard, switching-on prohibition signboard, manual operation circuit signboard and switching-on prohibition signboard with different power sources.
When the signboard is manually hung and operated by electric power, due to various factors, the corresponding signboard can be hung when the signboard cannot be found after field operation; the panel of the distribution network switch cabinet on the site has weak magnetic attraction to the signboard, so that the signboard is easy to fall off; the column switch operating mechanism or the adjacent part is sharp, the protruding part is short and the position is high, and the operation and maintenance personnel hang the signboard and are very laborious and time-consuming. With the popularization of distribution network programmed operation, part of distribution network switch cabinets or pole top switches can be remotely operated, operation and maintenance personnel do not need to arrive at the site to implement power cut and transmission operation, and the method for manually hanging a physical power operation signboard by the site operation and maintenance personnel cannot meet the power safety production requirement in a new distribution network operation and maintenance state.
Disclosure of Invention
In order to solve the technical problems in the prior art, the invention provides the intelligent electronic signboard which can automatically collect the running state of the distribution network switch cabinet and automatically display the running state on the screen, so that the intelligent electronic signboard can replace the traditional operation signboard and save the physical strength and time of operation and maintenance personnel.
The invention aims to provide an automatic screen display device for distribution network power operation identification.
The second purpose of the invention is to provide a method for realizing the automatic screen display device of the distribution network power operation identifier.
The first purpose of the invention can be achieved by adopting the following technical scheme:
the system comprises a main control panel, a liquid crystal display screen, a state switching button, a manual selection button, a power switch and a wiring terminal, wherein the liquid crystal display screen, the state switching button, the manual selection button, the power switch and the wiring terminal are all electrically connected with the main control panel;
the main control panel comprises a processor, a memory, a photoelectric isolation module, a display control and word stock module and a power module, the memory, the photoelectric isolation module, the display control and word stock module and the power module are all electrically connected with the processor, the display control and word stock module is electrically connected with a liquid crystal display screen, the photoelectric isolation module is connected with a wiring terminal, and the wiring terminal is connected with a wiring box of the distribution network switch cabinet.
Preferably, the wiring terminal comprises a power supply terminal and a signal terminal, wherein the power supply terminal is connected with a DC220V power supply, and the signal terminal is connected with a secondary wiring box of the distribution network switch cabinet.
Preferably, the signal terminal includes a plurality of signal ports, and first signal port is connected with high tension switch's normally open auxiliary contact, and the second signal port is connected with high tension switch's normally closed auxiliary contact, and the third signal port is connected with high tension switch's normally closed auxiliary contact, and the fourth signal port is connected with the normally open auxiliary contact of earthing knife-switch.
The second purpose of the invention can be achieved by adopting the following technical scheme:
the method for realizing the automatic screen display device of the distribution network power operation identifier comprises the following steps
The automatic screen display device for the distribution network electric power operation identification is in an automatic state by default, when a circuit is powered on and a high-voltage switch is switched on, a first signal port is switched on, and a liquid crystal display screen displays 'running'; when the circuit is operated by a person and the high-voltage switch is switched off, the second signal port is switched on, and the liquid crystal display screen displays that switching-on is forbidden and the circuit is operated by the person; when the high-voltage switch is switched off and the two-way power supplies of the distribution network are not parallel, the third signal port is switched on, the liquid crystal display screen displays that different power supplies are switched on, and the font color is red; when the grounding knife switch of the distribution network switch cabinet is closed, the fourth signal port is connected, and the liquid crystal display screen displays a grounding knife closing pattern mark;
the automatic screen display device of the distribution network power operation identification is switched from an automatic state to a manual state through a state switching button, and when the automatic screen display device of the distribution network power operation identification is in the manual state, a first button switch is pressed down, and a liquid crystal display screen displays 'in-service'; pressing a second button switch, and displaying 'forbidding closing, someone working in the circuit' by a liquid crystal display screen; pressing a third button switch, displaying different power supplies and forbidding closing a switch on a liquid crystal display screen, and displaying red color; when the fourth button switch is pressed, the liquid crystal display screen displays a grounding knife closing pattern mark; and then pressing a state switching button, and switching the distribution network electric power operation identification automatic screen display device from a manual state to an automatic state.
Compared with the prior art, the invention has the following advantages:
the automatic screen display device for the distribution network power operation identification is connected with a distribution network switch cabinet through an input terminal, the states of a switch and a grounding switch of the distribution network switch cabinet are automatically collected and monitored, preset operation identification plate information is displayed on a liquid crystal display screen through display control of a main control panel and a word library module, and the content of a physical power operation identification plate is displayed and switched in an automatic screen display mode under the condition that operation and maintenance personnel are not on site, so that the safety warning effect of the traditional power operation identification plate is exerted, convenience is provided for distribution network programmed operation, the blank of automatic screen display of the existing power operation identification plate is filled, and the intelligent operation and maintenance state change of a distribution network and the construction of a digital distribution network are facilitated; the invention can replace the traditional operation mode that the operation and maintenance personnel hang the physical signboard manually, thereby saving the physical strength and time of the operation and maintenance personnel.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.
FIG. 1 is a schematic diagram of a front side of a structural frame of an automatic display device according to an embodiment of the present invention;
FIG. 2 is a schematic diagram of a rear side of a frame of an automatic display device according to an embodiment of the present invention;
FIG. 3 is a circuit block diagram of an automatic on-screen display device for distribution network power operation identification according to an embodiment of the present invention;
the reference numbers in the figures are: the device comprises a liquid crystal display screen 1, a state switching button 2, a manual selection button 3, a power switch 4 and a wiring terminal 5.
Detailed Description
The technical solutions of the present invention will be described in further detail with reference to the accompanying drawings and examples, and it is obvious that the described examples are some, but not all, examples of the present invention, and the embodiments of the present invention are not limited thereto. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Example 1
The invention relates to a distribution network electric power operation identification automatic screen display device taking a CPU (central processing unit) as a core, which is connected with a distribution network switch cabinet through an input terminal and automatically acquires and monitors the states of a high-voltage switch and a grounding disconnecting link of the distribution network switch cabinet. When the state of a high-voltage switch or a grounding switch of the distribution network switch cabinet is changed, the processor sets the internal register, the register data are sent to the display control module through the internal bus, the display control module converts the register data into a display dot matrix in comparison with a Chinese character library, and the display dot matrix is displayed through a liquid crystal display screen of the device, so that automatic tracking, acquisition and automatic display are realized. The automatic screen display device for the distribution network electric power operation identification tracks and detects states of the high-voltage switch and the grounding disconnecting link, has multiple acquisition modes, can be a passive contact of the high-voltage switch and the grounding disconnecting link of a distribution network switch cabinet, can also be an active potential, and is flexibly used in different occasions. The distribution network electric power operation identification automatic screen display device can display operation identifications which can be characters or patterns, and is easy to identify and convenient to operate.
As shown in fig. 1-3, the distribution network electric power operation identifier automatic screen display device provided by the invention comprises a main control panel, a liquid crystal display screen 1, a state switching button 2, a manual selection button 3, a power switch 4 and a wiring terminal 5, wherein the liquid crystal display screen 1, the state switching button 2, the manual selection button 3, the power switch 4 and the wiring terminal 5 are all electrically connected with the main control panel. Wherein,
the main control panel uses a processor CPU as a core, integrates the functions of acquisition, storage, processing, communication and display, realizes the automatic acquisition of the state of the distribution network switch cabinet, displays the preset operation signboard information through a liquid crystal display screen, and stores the acquired data in a permanent register by a data storage unit. The state of the distribution network switch cabinet comprises the running state of a high-voltage switch, the switching-off state of the high-voltage switch, the dual-power state of the distribution network switch cabinet and the switching-on state of a grounding switch. Preferably, the main control panel comprises a processor CPU, a memory, a photoelectric isolation module, a display control and word stock module and a power module, wherein the memory, the photoelectric isolation module, the display control and word stock module and the power module are all electrically connected with the processor, and the display control and word stock module is electrically connected with the liquid crystal display screen.
The liquid crystal display screen 1 is used for displaying and outputting the distribution network electric power operation identification automatic screen display device, receiving data transmitted by the processor, displaying the data as a corresponding identification in a specified color (red), prompting the current state of the distribution network switch cabinet and visually displaying the state information of the distribution network switch cabinet. In this embodiment, the liquid crystal display panel 1 is a 7-inch TFT liquid crystal display panel.
The state switching button 2 is used for switching the manual/automatic state of the automatic distribution network power operation identification screen display device, the automatic distribution network power operation identification screen display device is in an automatic state under the normal condition, when operation and maintenance personnel need to change the state information of the distribution network switch cabinet of the automatic distribution network power operation identification screen display device, the state switching button is pressed to be switched into a manual state, and the state information of the distribution network switch cabinet which is displayed can be set through the manual selection button 3 according to the actual condition.
The manual selection button 3 comprises a plurality of button switches, each button switch corresponds to one type of state information of the distribution network switch cabinet, and the manual selection button 3 is used for selectively displaying preset distribution network power operation identification information when the automatic screen display device for distribution network power operation identification is in a manual state. Preferably, the manual selection button comprises 4 button switches, specifically, a button switch 1, a button switch 2, a button switch 3 and a button switch 4, and is used for selectively displaying 4 different distribution network power operation identification information on the liquid crystal display screen. The power switch 4 is used to turn on or off the operating power of the device.
Preferably, a first signal port IN1 of the operation identification automatic screen display device is connected with a normally open auxiliary contact of the high-voltage switch, a second signal port IN2 of the operation identification automatic screen display device is connected with a normally closed auxiliary contact of the high-voltage switch, a third signal port IN3 of the operation identification automatic screen display device is connected with a normally closed auxiliary contact of the high-voltage switch of the distribution network switch cabinet, and a fourth signal port IN4 of the operation identification automatic screen display device is connected with a normally open auxiliary contact of the grounding knife switch of the distribution network switch cabinet. In particular, the amount of the solvent to be used,
(1) the normally open auxiliary contact of the high-voltage switch is connected to a signal port IN1 of the automatic screen display device of the operation identification, and the automatic screen display device of the distribution network power operation identification detects the contact IN real time. When the circuit is powered on and the high-voltage switch is closed, the contact is closed, when the device detects that the contact is closed, the internal program sets the MV01 register, and the CPU converts the MV01 register into corresponding dot matrix data in operation and displays the dot matrix data on the liquid crystal display screen.
(2) The normally closed auxiliary contact of the high-voltage switch is connected to a signal port IN2 of the automatic screen display device for the operation identification, and the contact is detected by the automatic screen display device for the distribution network power operation identification IN real time. When the high-voltage switch is opened by line maintenance or other operations, the contact is closed, when the device detects that the contact is closed, the internal program sets the MV02 register, the CPU converts the contact into corresponding 'forbid closing, and the line is operated by people to' dot matrix data and display the dot matrix data on the liquid crystal display screen to prompt operation and maintenance personnel.
(3) The normally closed auxiliary contact of the high-voltage switch is connected to a signal port IN3 of the automatic screen display device with an operation identification, and the device detects the contact IN real time. When the high-voltage switch of the distribution network switch cabinet is switched off, the two power supplies of the distribution network are not parallel, the auxiliary contact is closed, and when the contact is detected to be closed, the internal program sets the MV03 register, and the CPU converts the MV03 register into corresponding dot matrix data of 'different power supplies, forbidding switching on' and displays the dot matrix data on the liquid crystal display screen.
(4) The normally open auxiliary contact of the earthing knife switch is connected with a signal port IN4 of the automatic screen display device of the operation identification, and the device detects the contact IN real time. When the grounding knife switch of the distribution network switch cabinet is closed, the contact is closed, when the device detects that the contact is closed, the internal program sets the MV04 register, the CPU converts the MV04 register into corresponding grounding knife switch pattern mark dot matrix data and displays the corresponding grounding knife switch pattern mark dot matrix data on the liquid crystal display screen to prompt operation and maintenance personnel.
In this implementation, join in marriage automatic screen display device operating voltage of net electric power operation sign and be DC220V, join in marriage automatic screen display device of net electric power operation sign and be connected with distribution network cubical switchboard secondary junction box through binding post 5 of backplate.
The use principle of the automatic screen display device for the distribution network power operation identifier is as follows:
under the normal condition, the automatic screen display device of the distribution network power operation identification is in an automatic state by default, the automatic screen display device of the distribution network power operation identification automatically acquires the state information of the distribution network switch cabinet, and the preset information is automatically displayed on the display screen after being processed by the CPU of the main control panel. When the distribution network power operation identification automatic screen display device is IN an automatic state, the signal port IN1-IN4 is communicated with a corresponding port of a secondary junction box of a distribution network switch cabinet, and when the signal port IN1 is connected, the liquid crystal display screen displays 'running'; when the signal port IN2 is connected, the liquid crystal display screen displays 'forbidding closing, someone works IN the circuit'; when the signal port IN3 is connected, the liquid crystal display screen displays 'different power supplies, switching-on is forbidden', and the display font color is red; when the signal port IN4 is connected, the liquid crystal display screen displays a grounding knife closing pattern mark for prompting operation and maintenance personnel.
When the state switching button is pressed, the automatic screen display device for the distribution network power operation identification is switched from an automatic state to a manual state through the state switching button, and the liquid crystal display screen is defaulted to be in operation. When the distribution network electric power operation identification automatic screen display device is in a manual state and the button switch 1 is pressed, the liquid crystal display screen displays 'running'; when the button switch 2 is pressed, the liquid crystal display screen displays 'switching on is forbidden and the circuit works by someone'; when the button switch 3 is pressed, the liquid crystal display screen displays 'different power supplies, switching-on is forbidden', and the display color is red; when the button switch 4 is pressed, the liquid crystal display screen displays the grounding knife closing pattern mark. When the state switching button is pressed again, the distribution network power operation identification automatic screen display device is switched to an automatic state.
To sum up, the automatic screen display device for the distribution network power operation signs can replace the traditional operation signs by automatically acquiring the states of the distribution network switch cabinets and automatically displaying the states on the screen, so that the situation that operation and maintenance personnel hang the signs in a missing or wrong way is avoided, the states of the distribution network switch cabinets are displayed in a striking manner, the traditional operation signs are replaced, the operation and maintenance patrol personnel are prompted, and misoperation is avoided.
Example 2
The method for realizing the automatic screen display device based on the distribution network power operation identifier comprises the following steps:
the automatic screen display device for the distribution network electric power operation identification is in an automatic state by default, when a circuit is powered on and a high-voltage switch is switched on, a first signal port is switched on, and a liquid crystal display screen displays 'running'; when the circuit is operated by someone and the high-voltage switch is switched off, the second signal port is switched on, and the liquid crystal display screen displays ' switching-on forbidding ' and the circuit is operated by someone '; when the high-voltage switch is switched off and the two-way power supplies of the distribution network are not parallel, the third signal port is switched on, the liquid crystal display screen displays that different power supplies are switched on, and the font color is red; when the grounding knife switch of the distribution network switch cabinet is closed, the fourth signal port is connected, and the liquid crystal display screen displays a grounding knife closing pattern mark;
the automatic screen display device of the distribution network electric power operation identification is switched from an automatic state to a manual state through a state switching button, and when the automatic screen display device of the distribution network electric power operation identification is in the manual state, a first button switch is pressed down, and the liquid crystal display screen displays 'in-service'; pressing a second button switch, and displaying 'forbidding closing, someone working in the circuit' by a liquid crystal display screen; pressing a third button switch, and displaying different power supplies and forbidding closing on a switch on a liquid crystal display screen, wherein the display color is red; when the fourth button switch is pressed, the liquid crystal display screen displays a grounding knife closing pattern mark; and then pressing a state switching button, and switching the distribution network electric power operation identification automatic screen display device from a manual state to an automatic state.
The distribution network power operation identification automatic screen display device detects input signals of an input terminal IN1-4 IN real time, when the input terminal IN1-4 is detected to have input closed signals, the CPU sets corresponding internal registers MV01-MV04 to represent different states of a high-voltage switch and a grounding disconnecting link of a distribution network switch cabinet, the CPU sends the states of the internal registers to the display control module through an internal bus, and the display control module converts data into corresponding ASCII dot matrixes by contrasting a Chinese character library and displays the ASCII dot matrixes on the liquid crystal display screen.
The above embodiments are preferred embodiments of the present invention, but the present invention is not limited to the above embodiments, and any other changes, modifications, substitutions, combinations, and simplifications which do not depart from the spirit and principle of the present invention should be construed as equivalents thereof, and all such changes, modifications, substitutions, combinations, and simplifications are intended to be included in the scope of the present invention.
Claims (6)
1. A distribution network electric power operation identification automatic screen display device is characterized by comprising a main control panel, a liquid crystal display screen, a state switching button, a manual selection button, a power switch and a wiring terminal, wherein the liquid crystal display screen, the state switching button, the manual selection button, the power switch and the wiring terminal are all electrically connected with the main control panel;
the main control panel comprises a processor, a memory, a photoelectric isolation module, a display control and word stock module and a power module, wherein the memory, the photoelectric isolation module, the display control and word stock module and the power module are all electrically connected with the processor, the display control and word stock module are electrically connected with a liquid crystal display screen, the photoelectric isolation module is connected with a wiring terminal, and the wiring terminal is connected with a distribution network switch cabinet wiring box.
2. The distribution network power operation identification automatic screen display device according to claim 1, wherein the manual selection button comprises a plurality of button switches for selecting and displaying preset distribution network power operation identification information when the distribution network power operation identification automatic screen display device is in a manual state.
3. The automatic screen display device for power operation identification of distribution network of claim 2, wherein said connection terminal comprises a power terminal and a signal terminal, the power terminal is connected with DC220V power supply, and the signal terminal is connected with distribution network switch cabinet connection box.
4. The automatic screen display device for distribution network power operation identifiers of claim 3, wherein the signal terminals comprise a plurality of signal ports, a first signal port is connected with a normally open auxiliary contact of the high-voltage switch, a second signal port is connected with a normally closed auxiliary contact of the high-voltage switch, a third signal port is connected with a normally closed auxiliary contact of the high-voltage switch, and a fourth signal port is connected with a normally open auxiliary contact of the grounding switch.
5. The automatic screen display device for distribution network power operation identifiers of claim 1, wherein the liquid crystal display screen is a 7-inch TFT liquid crystal display screen.
6. The method for implementing the distribution network power operation identification automatic screen display device according to claim 4, comprising:
the automatic screen display device for the distribution network electric power operation identification is in an automatic state by default, when a circuit is powered on and a high-voltage switch is switched on, a first signal port is switched on, and a liquid crystal display screen displays 'running'; when the circuit is operated by someone and the high-voltage switch is switched off, the second signal port is switched on, and the liquid crystal display screen displays ' switching-on forbidding ' and the circuit is operated by someone '; when the high-voltage switch is switched off and the two-way power supplies of the distribution network are not parallel, the third signal port is switched on, the liquid crystal display screen displays that different power supplies are switched on, and the font color is red; when the grounding knife switch of the distribution network switch cabinet is closed, the fourth signal port is connected, and the liquid crystal display screen displays a grounding knife closing pattern mark;
the automatic screen display device of the distribution network power operation identification is switched from an automatic state to a manual state through a state switching button, and when the automatic screen display device of the distribution network power operation identification is in the manual state, a first button switch is pressed down, and a liquid crystal display screen displays 'in-service'; pressing a second button switch, and displaying 'forbidding closing, someone working in the circuit' by a liquid crystal display screen; pressing a third button switch, displaying different power supplies and forbidding closing a switch on a liquid crystal display screen, and displaying red color; when the fourth button switch is pressed, the liquid crystal display screen displays a grounding knife closing pattern mark; and pressing a state switching button, and switching the distribution network power operation identifier automatic screen display device from a manual state to an automatic state.
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| CN118300272A (en) * | 2024-06-06 | 2024-07-05 | 中煤天津设计工程有限责任公司 | Modularized remote power-on and power-off system and method combined with electronic tag |
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