CN112562501A - Electronic indicator for tourism management - Google Patents

Electronic indicator for tourism management Download PDF

Info

Publication number
CN112562501A
CN112562501A CN202011551526.0A CN202011551526A CN112562501A CN 112562501 A CN112562501 A CN 112562501A CN 202011551526 A CN202011551526 A CN 202011551526A CN 112562501 A CN112562501 A CN 112562501A
Authority
CN
China
Prior art keywords
electronic
fixed
base
display screen
transmission shaft
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
CN202011551526.0A
Other languages
Chinese (zh)
Inventor
龙丹
于会霞
姜孟达
贾发现
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Henan University of Urban Construction
Original Assignee
Henan University of Urban Construction
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Henan University of Urban Construction filed Critical Henan University of Urban Construction
Priority to CN202011551526.0A priority Critical patent/CN112562501A/en
Publication of CN112562501A publication Critical patent/CN112562501A/en
Withdrawn legal-status Critical Current

Links

Images

Classifications

    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B08—CLEANING
    • B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
    • B08B1/00—Cleaning by methods involving the use of tools
    • B08B1/10—Cleaning by methods involving the use of tools characterised by the type of cleaning tool
    • B08B1/12—Brushes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B08—CLEANING
    • B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
    • B08B1/00—Cleaning by methods involving the use of tools
    • B08B1/30—Cleaning by methods involving the use of tools by movement of cleaning members over a surface
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
    • F03D—WIND MOTORS
    • F03D9/00—Adaptations of wind motors for special use; Combinations of wind motors with apparatus driven thereby; Wind motors specially adapted for installation in particular locations
    • F03D9/10—Combinations of wind motors with apparatus storing energy
    • F03D9/11—Combinations of wind motors with apparatus storing energy storing electrical energy
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
    • F03D—WIND MOTORS
    • F03D9/00—Adaptations of wind motors for special use; Combinations of wind motors with apparatus driven thereby; Wind motors specially adapted for installation in particular locations
    • F03D9/30—Wind motors specially adapted for installation in particular locations
    • F03D9/34—Wind motors specially adapted for installation in particular locations on stationary objects or on stationary man-made structures
    • F03D9/43—Wind motors specially adapted for installation in particular locations on stationary objects or on stationary man-made structures using infrastructure primarily used for other purposes, e.g. masts for overhead railway power lines
    • 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
    • H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
    • H02J7/34—Parallel operation in networks using both storage and other dc sources, e.g. providing buffering
    • H02J7/35—Parallel operation in networks using both storage and other dc sources, e.g. providing buffering with light sensitive cells
    • 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
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B10/00—Integration of renewable energy sources in buildings
    • Y02B10/30—Wind power
    • 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
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00—Energy generation through renewable energy sources
    • Y02E10/70—Wind energy
    • Y02E10/72—Wind turbines with rotation axis in wind direction
    • 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
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00—Energy generation through renewable energy sources
    • Y02E10/70—Wind energy
    • Y02E10/728—Onshore wind turbines
    • 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
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E70/00—Other energy conversion or management systems reducing GHG emissions
    • Y02E70/30—Systems combining energy storage with energy generation of non-fossil origin

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Sustainable Development (AREA)
  • Sustainable Energy (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Road Signs Or Road Markings (AREA)

Abstract

The invention discloses an electronic indicating board for travel management, which comprises a base and an installation column vertically fixed on the base, wherein a power control box is arranged at the top of the base, a display screen, a generator box and the electronic indicating board are respectively fixed on the installation column, an umbrella-shaped rain shed is fixed at the top of the installation column, a solar cell panel is fixed at the top of the rain shed, an impeller is fixed at the top of the installation column, the bottom of the impeller is vertically connected with a transmission shaft, a cleaning mechanism is arranged on the outer wall of the electronic indicating board, the solar cell panel, the generator box, the display screen and the electronic indicating board are respectively and electrically connected with the power control box, the commercial power pressure is reduced by renewable utilization of solar energy and wind energy, the impeller generates electricity through the transmission shaft, and the transmission shaft drives the cleaning mechanism to act through a driving bevel gear and a driven bevel gear so as to clean the electronic display screen, the long-term use of the electronic indicator is ensured, and manual cleaning is not needed regularly.

Description

Electronic indicator for tourism management
Technical Field
The invention relates to the technical field of travel management, in particular to an electronic indicator for travel management.
Background
Along with the rapid development of economy in China, the living standard of people is greatly improved compared with the past, at present, the Chinese people can select to enhance the feelings of each other or relieve the rhythm of life and reduce the pressure of life in a tourism mode when on vacation, when people select to travel outside in a large scale, tourist attractions are relatively stressed, and when the people receive large-flow passengers, the electronic indicating boards are arranged in the tourist attractions to facilitate the unified management and guidance of the tourists.
Present be used for tourism electronic sign for management, general single structure can not utilize renewable resources, and the electronic sign is polluted easily for long-time the using outside in addition, needs the scenic spot workman to clean one by one, because the interval between each sign is far away, greatly increased scenic spot workman's intensity of labour, and current sign generally does not possess rain-proof function, drenches rain for a long time and leads to the sign to rust, can't use.
Based on this, the present invention provides an electronic sign for tourism management to solve the above mentioned problems.
Disclosure of Invention
The present invention is directed to an electronic sign for managing tourism, which solves the above-mentioned problems.
In order to achieve the purpose, the invention provides the following technical scheme: an electronic sign for travel management comprises a base and a mounting column vertically fixed on the base, wherein the base is fixed on the ground through a fixing pile, a power control box is arranged at the top of the base, a display screen, a generator box and the electronic sign are respectively fixed on the mounting column, an umbrella-shaped rain shed is fixed at the top of the mounting column, a solar cell panel is fixed at the top of the rain shed, an impeller is fixed at the top of the mounting column, the bottom of the impeller is vertically connected with a transmission shaft, the bottom end of the transmission shaft is connected with the input end of a generator in the generator box, a cavity is formed in the base, a driving bevel gear is arranged on the outer wall of the transmission shaft, which is positioned in the cavity, a driven bevel gear is meshed with the outer side of the driving bevel gear, a cleaning mechanism is installed on the outer wall of the electronic sign, and the driven bevel gear is connected with the input end of the cleaning mechanism, the solar cell panel, the generator box, the display screen and the electronic indicator are respectively electrically connected with the power control box.
Preferably, the electronic indicator comprises a plurality of symmetrical mounting posts, and each electronic indicator is provided with a cleaning mechanism on one side.
Preferably, the cleaning mechanism comprises a connecting block, a reciprocating screw rod, a cleaning brush and a guide rod, the electronic indicator is far away from the top and the bottom of one end of the mounting column, the connecting block is connected with the driven bevel gear through the reciprocating screw rod, the connecting block is horizontally connected with the guide rod, and the cleaning brush is connected between the reciprocating screw rod and the guide rod.
Preferably, the cleaning surface of the cleaning brush is attached to the outer wall of the electronic indicator.
Preferably, the power control box is connected with an external commercial power.
Preferably, the display screen is connected with a one-key help-seeking key.
Compared with the prior art, the invention has the beneficial effects that: the solar energy is fully utilized by the solar cell panel and then stored in the power control box, meanwhile, the arranged impeller can store wind energy in the power control box through the transmission shaft, electric energy used by the electronic indicator can be saved by utilizing renewable solar energy and wind energy, and the mains supply pressure is reduced.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic view of the internal structure of the present invention;
FIG. 3 is a schematic structural diagram of the cleaning mechanism of the present invention.
In the drawings, the components represented by the respective reference numerals are listed below:
1. a base; 2. mounting a column; 3. fixing the pile; 4. a power supply control box; 5. a display screen; 6. a generator box; 7. an electronic sign; 8. a rain shelter; 9. a solar panel; 10. an impeller; 11. one-key help-seeking key; 12. a drive shaft; 13. a driven bevel gear; 14. a cleaning mechanism; 141. connecting blocks; 142. a reciprocating screw rod; 143. cleaning a brush; 144. a guide bar; 15. a drive bevel gear.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. 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.
Referring to fig. 1-3, the present invention provides a technical solution: an electronic sign for travel management comprises a base 1 and a mounting column 2 vertically fixed on the base 1, wherein the base 1 is fixed on the ground through a fixing pile 3, a power supply control box 4 is arranged at the top of the base 1, a display screen 5, a generator box 6 and an electronic sign 7 are respectively fixed on the mounting column 2, an umbrella-shaped rain shelter 8 is fixed at the top of the mounting column 2, the power supply control box 4, the display screen 5, the generator box 6 and the electronic sign 7 which are positioned below the mounting column can be protected through the arranged rain shelter 8, the influence on the rain or the sunshine is avoided, a solar cell panel 9 is fixed at the top of the rain shelter 8, an impeller 10 is fixed at the top of the mounting column 2, a transmission shaft 12 is vertically connected at the bottom of the impeller 10, and the bottom end of the transmission shaft 12 is connected with the input end of a generator in the generator box 6, the solar energy electric sign comprises a base 1 and is characterized in that a cavity is formed in the base 1, a driving bevel gear 15 is arranged on the outer wall of a transmission shaft 12 located in the cavity, a driven bevel gear 13 is meshed with the outer side of the driving bevel gear 15, a cleaning mechanism 14 is installed on the outer wall of an electronic sign 7, the driven bevel gear 13 is connected with the input end of the cleaning mechanism 14, and a solar cell panel 9, a generator box 6, a display screen 5 and the electronic sign 7 are respectively electrically connected with a power supply control box 4.
Wherein, electron sign 7 sets up including the symmetry a plurality of, every of 2 both sides of erection column cleaning mechanism 14 is all installed to one side of electron sign 7, can clear up every electron sign 7 through every cleaning mechanism 14, guarantees the long-term use of electron sign 7, also need not artifical regularly to clear up, effectively practices thrift manpower and cost.
The cleaning mechanism 14 comprises a connecting block 141, a reciprocating screw rod 142, a cleaning brush 143 and a guide rod 144, the connecting block 141 is arranged at the top and the bottom of one end, far away from the mounting column 2, of the electronic indicator 7, the connecting block 141 at the top is connected with the driven bevel gear 13 through the reciprocating screw rod 142, the connecting block 141 at the bottom is horizontally connected with the guide rod 144, the cleaning brush 143 is connected between the reciprocating screw rod 142 and the guide rod 144, a cleaning surface of the cleaning brush 143 is attached to the outer wall of the electronic indicator 7, and the driven bevel gear 13 drives the cleaning mechanism 14 to reciprocate left and right under the action of the guide rod 144 through the reciprocating screw rod 142, so that the surface of the electronic indicator 7 is cleaned.
Wherein, power control box 4 is connected with outside commercial power, and the electric power in the power control box 4 not only can supply power to electronic sign 7 and display screen 5, can also be used for providing the commercial power utilization, greatly reduced mains pressure, make full use of solar energy and wind energy renewable resources.
The display screen 5 is connected with a one-key help-seeking key 11, and the road condition can be timely fed back through the one-key help-seeking function, so that police officers can conveniently master the road traffic condition in real time.
The specific working principle is as follows:
the invention fully utilizes solar energy through a solar cell panel 9, then stores the solar energy in a power supply control box 4, simultaneously an impeller 10 arranged can store wind energy in the power supply control box 4 through a transmission shaft 12, electric energy used by the electronic indicating board can be saved through utilizing reproducible solar energy and wind energy, the commercial power pressure is reduced, simultaneously, the transmission shaft 12 drives a cleaning mechanism 14 to act through a driving bevel gear 15 and a driven bevel gear 13 when the impeller 10 generates electricity through the transmission shaft 12, so as to clean the electronic display screen 7, the cleaning mechanism 14 mainly adopts a reciprocating screw rod 142, is a screw rod which can lead a slide block to realize reciprocating motion under the condition of not changing the rotation direction of a main shaft, the driven bevel gear 13 can drive the cleaning mechanism 14 to reciprocate left and right through the reciprocating screw rod 142 under the action of a guide rod 144, so as to clean the surface of the electronic indicating board 7, guarantee the long-term use of electronic sign 7, also need not artifical clearance regularly, effectively practice thrift manpower and cost.
In the description herein, references to the description of "one embodiment," "an example," "a specific example" or the like are intended to mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
The preferred embodiments of the invention disclosed above are intended to be illustrative only. The preferred embodiments are not intended to be exhaustive or to limit the invention to the precise embodiments disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the invention and the practical application, to thereby enable others skilled in the art to best utilize the invention. The invention is limited only by the claims and their full scope and equivalents.

Claims (6)

1. The utility model provides an electronic sign that tourism management used which characterized in that: the solar energy electric power generation device comprises a base (1) and a mounting column (2) vertically fixed on the base (1), wherein the base (1) is fixed on the ground through a fixing pile (3), a power control box (4) is arranged at the top of the base (1), a display screen (5), a generator box (6) and an electronic indicator (7) are respectively fixed on the mounting column (2), an umbrella-shaped rain shelter (8) is fixed at the top of the mounting column (2), a solar cell panel (9) is fixed at the top of the rain shelter (8), an impeller (10) is fixed at the top of the mounting column (2), a transmission shaft (12) is vertically connected to the bottom of the impeller (10), the bottom end of the transmission shaft (12) is connected with a generator input end in the generator box (6), a cavity is formed in the base (1), and a driving bevel gear (15) is arranged on the outer wall of the transmission shaft (12) positioned in the cavity, driven bevel gears (13) are meshed with the outer sides of the driving bevel gears (15), cleaning mechanisms (14) are installed on the outer walls of the electronic signs (7), the driven bevel gears (13) are connected with the input ends of the cleaning mechanisms (14), and the solar cell panel (9), the generator box (6), the display screen (5) and the electronic signs (7) are respectively electrically connected with the power supply control box (4).
2. An electronic sign for travel management according to claim 1, wherein: electronic sign (7) are in including the symmetry a plurality of, every of erection column (2) both sides clearance mechanism (14) are all installed to one side of electronic sign (7).
3. An electronic sign for travel management according to claim 1, wherein: the cleaning mechanism (14) comprises a connecting block (141), a reciprocating screw rod (142), a cleaning brush (143) and a guide rod (144), the top and the bottom of one end, far away from the mounting column (2), of the electronic indicator (7) are respectively provided with the connecting block (141), the connecting block (141) at the top is connected with the driven bevel gear (13) through the reciprocating screw rod (142), the connecting block (141) at the bottom is horizontally connected with the guide rod (144), and the cleaning brush (143) is connected between the reciprocating screw rod (142) and the guide rod (144).
4. An electronic sign for travel management according to claim 3, wherein: the cleaning surface of the cleaning brush (143) is attached to the outer wall of the electronic indicator (7).
5. An electronic sign for travel management according to claim 1, wherein: the power supply control box (4) is connected with an external commercial power.
6. An electronic sign for travel management according to claim 1, wherein: the display screen (5) is connected with a one-key help-seeking key (11).
CN202011551526.0A 2020-12-24 2020-12-24 Electronic indicator for tourism management Withdrawn CN112562501A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202011551526.0A CN112562501A (en) 2020-12-24 2020-12-24 Electronic indicator for tourism management

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202011551526.0A CN112562501A (en) 2020-12-24 2020-12-24 Electronic indicator for tourism management

Publications (1)

Publication Number Publication Date
CN112562501A true CN112562501A (en) 2021-03-26

Family

ID=75033558

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202011551526.0A Withdrawn CN112562501A (en) 2020-12-24 2020-12-24 Electronic indicator for tourism management

Country Status (1)

Country Link
CN (1) CN112562501A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113160710A (en) * 2021-04-20 2021-07-23 付娟 Multifunctional sign for tourist attraction

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113160710A (en) * 2021-04-20 2021-07-23 付娟 Multifunctional sign for tourist attraction

Similar Documents

Publication Publication Date Title
CN112562501A (en) Electronic indicator for tourism management
CN113958905B (en) Wind-solar complementary multifunctional rod
CN206441486U (en) A kind of rotary solar advertising lamp box
CN201401716Y (en) Green energy source lamp box
CN102075115B (en) Ecological intelligent power-generating sunshade board
CN214306869U (en) Multifunctional LED energy-saving street lamp
CN106855212A (en) A kind of solar energy mixes new energy LED energy-saving environment-friendly road lamps with wind energy
CN202628394U (en) Wind-solar supplementary power generation, storage and supply energy device
CN213065916U (en) Auxiliary device for agricultural leisure, tourism and sightseeing
CN208058678U (en) A kind of energy-conserving road lamp with function for expelling pests
CN201786561U (en) Small-sized solar and wind hybrid generation device
CN205900048U (en) From bill -board of taking solar energy
CN214068209U (en) LED display device based on mobile communication network
CN210805020U (en) Gardens sign
CN210956011U (en) Rotatable self-flashing reminding device for security engineering construction
CN214993237U (en) Intelligent identification device for public transport
CN212057088U (en) Solar street lamp
CN214152290U (en) Multi-functional new forms of energy electronic display screen publicity board
CN219862481U (en) Energy-saving highway electronic signpost
CN209800163U (en) Wind-solar complementary type efficient power generation device
CN209880011U (en) Cultural tourism index board
CN215976959U (en) Highway traffic sign tablet auxiliary device
CN210424817U (en) Street lamp with exhibition function
CN220605861U (en) Solar street lamp that photovoltaic board can accomodate
CN215294780U (en) City intelligent lighting device

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination
WW01 Invention patent application withdrawn after publication
WW01 Invention patent application withdrawn after publication

Application publication date: 20210326