CN115560273A - Handrail illumination system and illumination method - Google Patents
Handrail illumination system and illumination method Download PDFInfo
- Publication number
- CN115560273A CN115560273A CN202211222177.7A CN202211222177A CN115560273A CN 115560273 A CN115560273 A CN 115560273A CN 202211222177 A CN202211222177 A CN 202211222177A CN 115560273 A CN115560273 A CN 115560273A
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- Prior art keywords
- handrail
- illumination
- lighting
- staircase
- escalator
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
- F21S8/00—Lighting devices intended for fixed installation
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04F—FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
- E04F11/00—Stairways, ramps, or like structures; Balustrades; Handrails
- E04F11/18—Balustrades; Handrails
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
- F21V23/00—Arrangement of electric circuit elements in or on lighting devices
- F21V23/003—Arrangement of electric circuit elements in or on lighting devices the elements being electronics drivers or controllers for operating the light source, e.g. for a LED array
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
- F21V23/00—Arrangement of electric circuit elements in or on lighting devices
- F21V23/06—Arrangement of electric circuit elements in or on lighting devices the elements being coupling devices, e.g. connectors
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04F—FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
- E04F11/00—Stairways, ramps, or like structures; Balustrades; Handrails
- E04F11/18—Balustrades; Handrails
- E04F2011/1868—Miscellaneous features of handrails not otherwise provided for
- E04F2011/1872—Miscellaneous features of handrails not otherwise provided for illuminated
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO THE FORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THE LIGHT EMITTED
- F21Y2115/00—Light-generating elements of semiconductor light sources
- F21Y2115/10—Light-emitting diodes [LED]
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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
- 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
- Y02B50/00—Energy efficient technologies in elevators, escalators and moving walkways, e.g. energy saving or recuperation technologies
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Architecture (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Escalators And Moving Walkways (AREA)
- Arrangement Of Elements, Cooling, Sealing, Or The Like Of Lighting Devices (AREA)
Abstract
The invention provides a handrail lighting system, and belongs to the field of lighting equipment. It includes stair and handrail, the handrail is fixed in the both sides of stair, be provided with lighting mechanism in the stair, lighting mechanism includes that the staircase throws light on anodically, staircase illumination negative pole, electrical source controller and LED lamp, the staircase illumination is anodal with be provided with insulating interlayer between the staircase illumination negative pole, electrical source controller's anodal with the anodal electric connection of staircase illumination, electrical source controller's negative pole with staircase illumination negative pole electric connection, the LED lamp with staircase illumination negative pole electric connection forms closed circuit when human hand is arranged in on the handrail and is contacted the anodal and staircase illumination negative pole and make electrical source controller to the illumination of LED lamp power supply. The invention also provides an illumination method. Compared with the prior art, the stair has the function of automatically starting illumination when a human body passes through the stairs, and has the characteristics of electricity consumption saving, good heat dissipation effect and difficult damage.
Description
Technical Field
The invention belongs to the field of lighting equipment, and particularly relates to a handrail lighting system and a lighting method.
Background
The escalator is a common infrastructure in daily life, and the basic structure of the escalator is composed of handrails and stairs, wherein the handrails are used for supporting hands when the escalator walks on the stairs. Chinese patent No. CN201510656912.9 discloses a handrail lighting system, which is arranged in a hollow guardrail tube having a mounting hole, and includes a lighting assembly installed inside the mounting hole, where the lighting assembly includes a lamp body and at least one lens arranged on a light-emitting side of the lamp body, a PCB circuit board and an LED light source arranged on the PCB circuit board are arranged in the lamp body, a central axis of the LED light source is inclined with respect to a central axis of the mounting hole, and a light-emitting center of the LED light source is not located on the central axis of the lens, the lens has a light-in surface facing the LED light source and a light-out surface close to the mounting hole, a surface shape of the light-out surface matches a surface shape of the guardrail tube, and light emitted from the LED light source becomes a cut-off light beam projected to a position under the guardrail tube and to a lighting surface after being modulated by the lens.
Although the lighting system can be used for cutoff lighting by taking the guardrail tube as a boundary, is free of glare and cannot pollute the environment, the lighting system is in a lighting mode commonly used in the conventional handrail lighting system, is always in an on state at night, and is turned on no matter whether people pass in stairs or not, so that the lighting system is in a long-time use state, namely is easy to damage, and unnecessary electric quantity waste is caused. In view of this, the present invention provides a handrail lighting system and a lighting method.
Disclosure of Invention
In order to solve the problems, the invention provides a handrail lighting system and a lighting method, which have the function of automatically starting lighting when a human body passes through a stair, and have the characteristics of electricity consumption saving, good heat dissipation effect and difficult damage.
The invention is realized by the following technical scheme:
the utility model provides a handrail lighting system, includes stair and handrail, the handrail is fixed in the both sides of stair, be provided with lighting mechanism in the stair, lighting mechanism includes that the staircase throws light on anodically, staircase illumination negative pole, electrical source controller and LED lamp, the staircase throws light on anodically with be provided with insulating interlayer between the staircase illumination negative pole, electrical source controller's anodal with the anodal electric connection of staircase illumination, electrical source controller's negative pole with staircase illumination negative pole electric connection, the LED lamp with staircase illumination negative pole electric connection forms closed circuit when human hand is arranged in on the handrail and is contacted the anodal and staircase illumination negative pole of staircase illumination and makes electrical source controller to the illumination of LED lamp power supply.
As a preferred technical scheme, the handrail comprises a round tube, the LED lamp is arranged at the bottom of the round tube, and a wire groove is formed in the top of the round tube.
As a preferred technical scheme, a heat dissipation channel for dissipating heat is further arranged on the circular tube.
As a preferable technical solution, the handrail further includes a lifting rod, and the circular tube is fixedly connected to the staircase through the lifting rod.
As a preferred technical scheme, the staircase illumination positive pole is arranged in the middle of the top of the circular tube, the staircase illumination negative poles are arranged on two sides of the staircase illumination positive pole, and the staircase illumination negative poles on two sides are separated from the staircase illumination positive pole through the insulating interlayer.
As a preferable technical solution, the armrest includes a left armrest and a right armrest, and the left armrest is provided with the lighting mechanism.
As a preferable technical solution, the armrest includes a left armrest and a right armrest, and the right armrest is provided with the lighting mechanism.
As a preferable technical solution, the armrest includes a left armrest and an armrest, and the left armrest and the right armrest are both provided with the lighting mechanism.
The lighting method of the handrail lighting system comprises the following steps
SS1, arranging an escalator lighting anode on the handrail;
SS2, arranging an escalator lighting cathode on the handrail, wherein the escalator lighting cathode is separated from the escalator lighting cathode between the SS1 through an insulating interlayer;
SS3, connecting the positive pole of the staircase illumination with the positive pole of the power supply controller through a lead, and connecting the negative pole of the staircase illumination with the negative pole of the power supply controller through a lead;
SS4, connecting the LED lamp with the lighting cathode of the escalator in series;
SS5, the escalator lighting anode and the escalator lighting cathode are contacted by the hands of a human body, so that the escalator lighting anode and the escalator lighting cathode are conducted to form a closed circuit, and the LED lamp starts lighting.
As a preferable technical scheme, in the step SS1, the positive electrode for escalator lighting is arranged in the middle of the top of the handrail, and in the step SS2, the negative electrode for escalator lighting is arranged on two sides of the positive electrode for assistant hand lighting.
Has the advantages that:
the illuminating mechanism is arranged on the handrail to form an illuminating system, the escalator illuminating anode and the escalator illuminating cathode are arranged at the top of the handrail, the escalator illuminating anode is electrically connected with the anode of the power supply controller, the escalator illuminating cathode is electrically connected with the cathode of the power supply controller, the LED lamp is electrically connected with the escalator illuminating cathode, a human body is equivalent to a resistor, when a hand of the human body holds the handrail, the hand simultaneously contacts the escalator illuminating anode and the escalator illuminating cathode, the power supply controller is connected, and micro-current is formed between the hands of the human body to conduct the LED lamp and provide illumination.
Drawings
FIG. 1 is a perspective view of a handrail lighting system;
FIG. 2 is a top view of the structure of FIG. 1;
FIG. 3 is a detailed block diagram of the barrel of the lighting system of FIG. 1;
fig. 4 is a schematic view of fig. 3 from another view angle.
The attached drawings are as follows:
1. a staircase; 2. a handrail; 21. a left armrest; 22. a right armrest; 3. an illumination mechanism; 31. an escalator lighting anode; 32. an escalator lighting cathode; 33. an insulating barrier layer; 34. an LED lamp; 4. a circular tube; 5. a lifting rod; 6. a wire slot; 7. and a heat dissipation channel.
Detailed Description
In order to further disclose and explain the technical scheme of the invention, a handrail lighting system and a lighting method are clearly and completely described below with reference to the attached drawings.
It should be noted that the terms "in", "middle" and "an" are used herein for the sake of clarity only, and are not intended to limit the scope of the present invention, and changes or modifications of the relative relationship may be made without substantial technical changes, and they are to be regarded as the scope of the present invention.
In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience in describing the present invention and simplifying the description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or to implicitly indicate a number of the indicated technical features. Thus, a feature defined as "first," "second," etc. may explicitly or implicitly include one or more of that feature. In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art through specific situations.
The embodiment is as follows:
referring to fig. 1 to 4, the invention provides a handrail lighting system, which includes a stair 1 and a handrail 2, wherein the handrail 2 is fixed on two sides of the stair 1, a lighting mechanism 3 is arranged in the stair 1, the lighting mechanism 3 includes a staircase lighting anode 31, a staircase lighting cathode 32, a power supply controller and an LED lamp 34, an insulating interlayer 33 is arranged between the staircase lighting anode 31 and the staircase lighting cathode 32, an anode of the power supply controller is electrically connected with the staircase lighting anode 31, a cathode of the power supply controller is electrically connected with the staircase lighting cathode 32, the LED lamp 34 is electrically connected with the staircase lighting cathode 32, and a closed circuit is formed when a human hand is placed on the handrail 2 and contacts with the staircase lighting anode 31 and the staircase lighting cathode 32, so that the power supply controller supplies power to the LED lamp 34 for lighting.
The lighting mechanism 3 is arranged on the handrail 2 to form a lighting system, the escalator lighting anode 31 and the escalator lighting cathode 32 are arranged at the top of the handrail 2, the escalator lighting anode 31 is electrically connected with the anode of the power supply controller, the escalator lighting cathode 32 is electrically connected with the cathode of the power supply controller, the LED lamp 34 is electrically connected with the escalator lighting cathode 32, a human body is equivalent to a resistor, when the hand of the human body is held by the handrail 2, the hand simultaneously contacts with the escalator lighting anode 31 and the escalator lighting cathode 32, the power supply controller is connected, and micro current is formed between the hands of the human body, so that the LED lamp 34 is conducted to provide lighting, namely when the hand of the human body is in contact with the handrail 2, the LED lamp 34 of the lighting mechanism 3 can be lightened, and lighting is provided.
Specifically, handrail 2 includes pipe 4, LED lamp 34 set up in the bottom of pipe 4, the top of pipe 4 is provided with wire casing 6, and through this kind of setting, the wire can be arranged in wire casing 6 and hide.
Specifically, the circular tube 4 is further provided with a heat dissipation channel 7 for heat dissipation, and it should be noted that the heat dissipation channel 7 may be water-cooled or air-cooled, and can take away heat generated in the wires and heat generated when the LED lamp 34 emits light, so as to ensure heat dissipation and prevent damage to components.
Specifically, the handrail 2 further comprises a lifting rod 5, the circular tube 4 is fixedly connected with the stair 1 through the lifting rod 5, and the height of the escalator can be adjusted through the lifting rod 5.
Specifically, the positive escalator lighting electrode 31 is arranged in the middle of the top of the circular tube 4, the negative escalator lighting electrodes 32 are arranged on two sides of the positive escalator lighting electrode 31, and the negative escalator lighting electrodes 32 are separated from the positive escalator lighting electrode 31 through the insulating interlayer 33, and it should be noted that by adopting the design, when a human body walks in the stairs 1, the palm of the human body hand holds the handrail 2 and the palm of the human body hand necessarily contacts the positive handrail 2 lighting electrode and the negative handrail 2 lighting electrode at the same time, so that the LED lamp 34 can be started.
In particular, the arrangement of the illumination means 3 has three embodiments. Further, the first embodiment: the armrest 2 comprises a left armrest 21 and a right armrest 22, the illumination mechanism 3 is arranged on the left armrest 21, and the embodiment enables only the left armrest to have an illumination function. The second embodiment: the armrests comprise a left armrest and a right armrest, and the lighting mechanism 3 is arranged on the right armrest 22; this embodiment provides that only the right armrest has an illumination function. The third implementation form is as follows: the handrail comprises a left handrail and a right handrail, and the illumination mechanism 3 is arranged on each of the left handrail 21 and the right handrail 22, so that each of the left handrail and the right handrail has an illumination function, which is a preferred embodiment.
The invention also provides an illumination method of the handrail illumination system, which comprises the following steps
SS1, arranging an escalator lighting anode on the handrail;
SS2, setting an escalator illumination negative electrode on the handrail, wherein the escalator illumination positive electrode is separated from the escalator illumination negative electrode between the SS1 through an insulating interlayer;
SS3, connecting the positive pole of the escalator illumination with the positive pole of the power supply controller through a lead, and connecting the negative pole of the escalator illumination with the negative pole of the power supply controller through a lead;
SS4, connecting the LED lamp with the lighting cathode of the escalator in series;
SS5, the escalator lighting positive electrode and the escalator lighting negative electrode are contacted by human hands, so that the escalator lighting positive electrode and the escalator lighting negative electrode are conducted to form a closed circuit, and the LED lamp starts lighting.
Specifically, the escalator lighting positive electrode in the step SS1 is arranged in the middle of the top of the handrail, and the escalator lighting negative electrode in the step SS2 is arranged on two sides of the auxiliary hand lighting positive electrode.
Through the mode, the stair has the function of automatically starting illumination when a human body passes through the stair, and has the characteristics of power consumption saving, good heat dissipation effect and difficult damage.
The present invention is not limited to the above-described embodiments, and various modifications and variations of the present invention are included if they do not depart from the spirit and scope of the present invention, and they are within the scope of the claims and the equivalent technology of the present invention.
Claims (10)
1. A handrail lighting system, comprising: including stair and handrail, the handrail is fixed in the both sides of stair, be provided with lighting mechanism in the stair, lighting mechanism includes that the staircase illumination is anodal, staircase illumination negative pole, electrical source controller and LED lamp, the staircase illumination anodal with be provided with insulating interlayer between the staircase illumination negative pole, electrical source controller's positive pole with the anodal electric connection of staircase illumination, electrical source controller's negative pole with staircase illumination negative pole electric connection, the LED lamp with staircase illumination negative pole electric connection, human hand form closed circuit when arranging in on the handrail contact staircase illumination is anodal and staircase illumination negative pole and make electrical source controller to the illumination of LED lamp power supply.
2. The handrail lighting system of claim 1, wherein: the handrail comprises a round tube, the LED lamp is arranged at the bottom of the round tube, and a wire groove is formed in the top of the round tube.
3. The handrail lighting system of claim 2, wherein: the round tube is also provided with a heat dissipation channel for heat dissipation.
4. The handrail lighting system of claim 2, wherein: the handrail further comprises a lifting rod, and the circular tube is fixedly connected with the stairs through the lifting rod.
5. The handrail lighting system of claim 1, wherein: the positive pole of staircase illumination set up in the positive centre in top of pipe, the negative pole of staircase illumination set up in the positive both sides of staircase illumination, both sides the negative pole of staircase illumination passes through insulating interlayer with the positive division of staircase illumination.
6. The handrail lighting system of claim 1, wherein: the handrail comprises a left handrail and a right handrail, and the illuminating mechanism is arranged on the left handrail.
7. The handrail lighting system of claim 1, wherein: the handrail comprises a left handrail and a right handrail, and the lighting mechanism is arranged on the right handrail.
8. The handrail lighting system of claim 1, wherein: the handrail comprises a left handrail and a handrail, and the illuminating mechanisms are arranged on the left handrail and the right handrail.
9. A method of illuminating a handrail illumination system, comprising: comprises the following steps
SS1, set up the lighting positive pole of staircase on the handrail;
SS2, setting an escalator illumination negative electrode on the handrail, wherein the escalator illumination positive electrode is separated from the escalator illumination negative electrode between the SS1 through an insulating interlayer;
SS3, connecting the positive pole of the escalator illumination with the positive pole of the power supply controller through a lead, and connecting the negative pole of the escalator illumination with the negative pole of the power supply controller through a lead;
SS4, connecting the LED lamp with the lighting cathode of the escalator in series;
SS5, the escalator lighting positive electrode and the escalator lighting negative electrode are contacted by human hands, so that the escalator lighting positive electrode and the escalator lighting negative electrode are conducted to form a closed circuit, and the LED lamp starts lighting.
10. The method of illuminating a handrail illumination system of claim 9, wherein: the escalator lighting positive electrode in the step SS1 is arranged in the middle of the top of the handrail, and the escalator lighting negative electrode in the step SS2 is arranged on two sides of the auxiliary hand lighting positive electrode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211222177.7A CN115560273B (en) | 2022-10-08 | 2022-10-08 | Armrest lighting system and lighting method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211222177.7A CN115560273B (en) | 2022-10-08 | 2022-10-08 | Armrest lighting system and lighting method |
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| Publication Number | Publication Date |
|---|---|
| CN115560273A true CN115560273A (en) | 2023-01-03 |
| CN115560273B CN115560273B (en) | 2023-08-11 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202211222177.7A Active CN115560273B (en) | 2022-10-08 | 2022-10-08 | Armrest lighting system and lighting method |
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| CN (1) | CN115560273B (en) |
Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5099402A (en) * | 1990-11-02 | 1992-03-24 | Starniri Rocco J | Handrail illumination system |
| CN2677735Y (en) * | 2004-03-08 | 2005-02-09 | 岑显亮 | Electric torch with multiple light sources |
| JP3123169U (en) * | 2006-04-24 | 2006-07-06 | 秋星實業有限公司 | Electronic flashlight |
| CN201330480Y (en) * | 2008-12-22 | 2009-10-21 | 中色科技股份有限公司 | Stair guardrail with lighting facility |
| CN204826473U (en) * | 2015-06-01 | 2015-12-02 | 朱利女 | Illumination stair railing of adjustable railing interval |
| CN105438948A (en) * | 2015-12-19 | 2016-03-30 | 重庆威斯特电梯有限公司 | Anti-pinch device preventing children from being pinched and hurt by escalator |
| CN107068458A (en) * | 2017-05-26 | 2017-08-18 | 桂林旭研机电科技有限公司 | Button assembly |
| CN208046978U (en) * | 2018-04-29 | 2018-11-02 | 赵国柱 | Corridor lamp |
| CN209431361U (en) * | 2018-12-04 | 2019-09-24 | 潘燕银 | A kind of lamps and lanterns for having sliding and connecing Electricity Functional |
| CN111643333A (en) * | 2020-06-16 | 2020-09-11 | 深圳市瑞吉斯科技有限公司 | Roller massage instrument |
| CN113082520A (en) * | 2021-05-20 | 2021-07-09 | 成都柔电云科科技有限公司 | Electrode patch for treating dysmenorrhea and wearable device |
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2022
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|---|---|---|---|---|
| US5099402A (en) * | 1990-11-02 | 1992-03-24 | Starniri Rocco J | Handrail illumination system |
| CN2677735Y (en) * | 2004-03-08 | 2005-02-09 | 岑显亮 | Electric torch with multiple light sources |
| JP3123169U (en) * | 2006-04-24 | 2006-07-06 | 秋星實業有限公司 | Electronic flashlight |
| CN201330480Y (en) * | 2008-12-22 | 2009-10-21 | 中色科技股份有限公司 | Stair guardrail with lighting facility |
| CN204826473U (en) * | 2015-06-01 | 2015-12-02 | 朱利女 | Illumination stair railing of adjustable railing interval |
| CN105438948A (en) * | 2015-12-19 | 2016-03-30 | 重庆威斯特电梯有限公司 | Anti-pinch device preventing children from being pinched and hurt by escalator |
| CN107068458A (en) * | 2017-05-26 | 2017-08-18 | 桂林旭研机电科技有限公司 | Button assembly |
| CN208046978U (en) * | 2018-04-29 | 2018-11-02 | 赵国柱 | Corridor lamp |
| CN209431361U (en) * | 2018-12-04 | 2019-09-24 | 潘燕银 | A kind of lamps and lanterns for having sliding and connecing Electricity Functional |
| CN111643333A (en) * | 2020-06-16 | 2020-09-11 | 深圳市瑞吉斯科技有限公司 | Roller massage instrument |
| CN113082520A (en) * | 2021-05-20 | 2021-07-09 | 成都柔电云科科技有限公司 | Electrode patch for treating dysmenorrhea and wearable device |
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| CN115560273B (en) | 2023-08-11 |
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