CN112283674A - Antifog haze wisdom lamp pole with air purification function - Google Patents
Antifog haze wisdom lamp pole with air purification function Download PDFInfo
- Publication number
- CN112283674A CN112283674A CN202011081588.XA CN202011081588A CN112283674A CN 112283674 A CN112283674 A CN 112283674A CN 202011081588 A CN202011081588 A CN 202011081588A CN 112283674 A CN112283674 A CN 112283674A
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- Prior art keywords
- lamp
- haze
- lamp pole
- lamp post
- processing unit
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Links
- 238000004887 air purification Methods 0.000 title claims abstract description 18
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 6
- 230000005540 biological transmission Effects 0.000 claims description 3
- 229910001220 stainless steel Inorganic materials 0.000 claims description 3
- 239000010935 stainless steel Substances 0.000 claims description 3
- 238000005286 illumination Methods 0.000 description 5
- 230000000694 effects Effects 0.000 description 3
- FFRBMBIXVSCUFS-UHFFFAOYSA-N 2,4-dinitro-1-naphthol Chemical compound C1=CC=C2C(O)=C([N+]([O-])=O)C=C([N+]([O-])=O)C2=C1 FFRBMBIXVSCUFS-UHFFFAOYSA-N 0.000 description 2
- 238000004134 energy conservation Methods 0.000 description 2
- 230000000149 penetrating effect Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000010248 power generation Methods 0.000 description 1
- 238000009877 rendering Methods 0.000 description 1
- 238000009423 ventilation Methods 0.000 description 1
Images
Classifications
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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
- F21V21/00—Supporting, suspending, or attaching arrangements for lighting devices; Hand grips
- F21V21/10—Pendants, arms, or standards; Fixing lighting devices to pendants, arms, or standards
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/24—Particle separators, e.g. dust precipitators, using rigid hollow filter bodies
-
- 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
- F21V23/04—Arrangement of electric circuit elements in or on lighting devices the elements being switches
- F21V23/0442—Arrangement of electric circuit elements in or on lighting devices the elements being switches activated by means of a sensor, e.g. motion or photodetectors
-
- 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
- F21V33/00—Structural combinations of lighting devices with other articles, not otherwise provided for
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21W—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO USES OR APPLICATIONS OF LIGHTING DEVICES OR SYSTEMS
- F21W2131/00—Use or application of lighting devices or systems not provided for in codes F21W2102/00-F21W2121/00
- F21W2131/10—Outdoor lighting
- F21W2131/103—Outdoor lighting of streets or roads
-
- 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]
-
- 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
- Y02B20/00—Energy efficient lighting technologies, e.g. halogen lamps or gas discharge lamps
- Y02B20/72—Energy efficient lighting technologies, e.g. halogen lamps or gas discharge lamps in street lighting
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Non-Portable Lighting Devices Or Systems Thereof (AREA)
- Disinfection, Sterilisation Or Deodorisation Of Air (AREA)
Abstract
The invention relates to the technical field of intelligent lamp poles, and discloses an anti-haze intelligent lamp pole with an air purification function, which comprises a lamp pole, wherein the upper part of the lamp pole is fixedly connected with a solar photovoltaic panel, a street lamp plate is obliquely and fixedly arranged upwards on the upper part of the right side of the lamp pole, and an exhaust fan is fixedly communicated and arranged on the upper part of the left side of the lamp pole; the front side of the lower part of the lamp post is fixedly provided with a control box, and the inner cavity of the control box is fixedly provided with a central processing unit, a data comparison module and a wireless signal receiving and transmitting module. According to the invention, the net barrel is arranged on the lamp post, the annular air filter element is arranged in the net barrel, so that air can be purified, when the air quality sensor positioned in the inner cavity of the lamp post senses that the air quality is lower than the threshold value, a signal is transmitted to the central processing unit, the central processing unit transmits the signal to the wireless signal transceiver module and finally transmits the signal to the municipal street lamp management host for reminding, the annular air filter element can be replaced, and the intelligent degree is high.
Description
Technical Field
The invention relates to the technical field of intelligent lamp poles, in particular to an anti-haze intelligent lamp pole with an air purification function.
Background
At present, the LED street lamp is a street lamp manufactured by using an LED light source, has the unique advantages of high efficiency, safety, energy conservation, environmental protection, long service life, high response speed, high color rendering index and the like, has very important significance for urban illumination and energy conservation, is widely used in various places needing illumination in a road illumination range in traffic illumination, and has the stock of 2800-3000 thousands of Chinese street lamps. In recent years, the number of newly added street lamps is 15-20%, and about 300-600 thousands of street lamps are added each year. Because the street lamp is used in each corner in city, when administering city haze, can combine street lamp and haze removal device, form the haze net that removes by a plurality of series connection into the net to reduce the harm that the haze brought to the life.
Antifog haze lamp pole among the prior art all adopts and installs air filter additional and carries out air-purifying, but air filter life discrepancy leads to the change problem that managers can't know air filter the very first time, manages very complicacy.
Disclosure of Invention
The invention aims to provide an anti-haze intelligent lamp pole with an air purification function, and solves the problems in the background art.
In order to achieve the purpose, the invention provides the following technical scheme: an anti-haze smart lamp pole with an air purification function comprises a lamp pole, wherein a solar photovoltaic panel is fixedly connected to the upper portion of the lamp pole, a street lamp board is fixedly arranged on the upper portion of the right side of the lamp pole in an upward inclined mode, and an exhaust fan is fixedly communicated with the upper portion of the left side of the lamp pole; a control box is fixedly arranged on the front side of the lower part of the lamp post, a central processing unit, a data comparison module and a wireless signal transceiving module are fixedly arranged in the inner cavity of the control box, and a haze sensor is fixedly arranged on the lamp post in the middle part above the control box;
the lower part of the lamp post is fixedly sleeved with a net barrel, the upper part of the net barrel is covered with a top cover, an annular air filter element is inserted in an inner cavity of the net barrel, and an air quality sensor is fixedly arranged in the middle of the inner cavity of the lamp post;
fixed mounting has the LED white lamp and the LED yellow lamp that polylith equidistance distributes on the lamp panel of street lamp board, haze sensor and air quality sensor's data output end and central processing unit's data input end are connected, data contrast module and wireless signal transceiver module's data access end are connected with central processing unit's data access end, wireless signal transceiver module's signal and municipal street lamp management host transmission are connected, central processing unit opens and close the module with the golden lamp with the white lamp that controls LED white lamp and LED yellow lamp independent control respectively and opens and close the module automatically controlled and be connected.
As a preferred embodiment of the present invention, a base is fixedly connected to the bottom of the lamp post.
As a preferred embodiment of the present invention, the exhaust fan is located right below the solar photovoltaic panel.
In a preferred embodiment of the present invention, the net drum is a 30-mesh stainless steel net drum.
As a preferred embodiment of the present invention, the left and right sides of the top cover are fixedly connected to the net cylinder by fixing bolts.
As a preferred embodiment of the present invention, the side wall of the lamp post located at the inner cavity of the net cylinder is provided with a plurality of openings distributed at equal intervals.
In a preferred embodiment of the present invention, the annular air filter element is an air filter element containing activated carbon.
As a preferred embodiment of the present invention, the solar photovoltaic panel is electrically connected to the exhaust fan.
Compared with the prior art, the invention has the following beneficial effects:
1. according to the invention, the net barrel is arranged on the lamp post, the annular air filter element is arranged in the net barrel, so that air can be purified, when the air quality sensor positioned in the inner cavity of the lamp post senses that the air quality is lower than the threshold value, a signal is transmitted to the central processing unit, the central processing unit transmits the signal to the wireless signal transceiver module and finally transmits the signal to the municipal street lamp management host for reminding, the annular air filter element can be replaced, the intelligent degree is high, and the management is more convenient.
2. When the haze sensor senses that the data are higher than the threshold value, the central processing unit controls the opening and closing module of the golden yellow lamp to be opened, so that the LED yellow lamp is turned on, yellow light is generated to illuminate the road surface, and the lighting capacity in haze weather is improved due to the fact that the penetrating power of the yellow light is strong.
Drawings
Other features, objects and advantages of the invention will become more apparent upon reading of the detailed description of non-limiting embodiments with reference to the following drawings:
FIG. 1 is a schematic view of an overall structure of an anti-haze smart lamp pole with an air purification function according to the invention;
FIG. 2 is a schematic side view of a cross-sectional structure of the distribution positions of a net cylinder and an annular air filter element of the anti-haze smart lamp pole with an air purification function;
FIG. 3 is a schematic view of the installation positions of a white LED lamp and a yellow LED lamp of the anti-haze intelligent lamp pole with the air purification function;
FIG. 4 is a schematic diagram of a structure of a central processing unit of the anti-haze smart lamp pole with an air purification function, which is distributed in a control box;
FIG. 5 is a schematic view of an overlooking structure of distribution positions of an air quality sensor and a haze sensor of the anti-haze smart lamp pole with an air purification function, provided by the invention;
FIG. 6 is a schematic top view of a mesh cylinder of the anti-haze smart lamp pole with an air purification function according to the present invention;
fig. 7 is a schematic structural view of a central processing unit operating system of the anti-haze smart lamp pole with an air purification function according to the invention.
In the figure: 1. a lamp post; 2. an exhaust fan; 3. a solar photovoltaic panel; 4. a top cover; 5. a control box; 6. a base; 7. a net drum; 8. a street lamp panel; 9. fixing the bolt; 10. a port; 11. an annular air filter element; 12. an LED white light; 13. an LED yellow light; 14. a central processing unit; 15. a data comparison module; 16. a wireless signal transceiving module; 17. an air quality sensor; 18. haze sensor.
The apparatus of the present invention is commercially available and custom made.
Detailed Description
In order to make the technical means, the creation characteristics, the achievement purposes and the effects of the invention easy to understand, the invention is further described with the specific embodiments.
In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are only for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed in a particular orientation, and be operated, and thus, should not be construed as limiting the present invention; in the description of the present invention, it should be noted that unless otherwise explicitly stated or limited, the terms "mounted," "connected," and "disposed" are to be construed broadly and can, for example, be fixedly connected, disposed, detachably connected, disposed, or integrally connected and disposed. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Referring to fig. 1-7, the present invention provides a technical solution: an anti-haze smart lamp pole with an air purification function comprises a lamp pole 1, wherein a solar photovoltaic panel 3 is fixedly connected to the upper portion of the lamp pole 1, a street lamp plate 8 is fixedly arranged on the upper portion of the right side of the lamp pole 1 in an upward inclining manner, and an exhaust fan 2 is fixedly communicated and arranged on the upper portion of the left side of the lamp pole 1; the front side of the lower part of the lamp post 1 is fixedly provided with a control box 5, the inner cavity of the control box 5 is fixedly provided with a central processing unit 14, a data comparison module 15 and a wireless signal transceiving module 16, and the middle part of the upper part of the control box 5 is fixedly provided with a haze sensor 18;
the lower part of the lamp post 1 is fixedly sleeved with a net barrel 7, the upper part of the net barrel 7 is covered with a top cover 4, an annular air filter element 11 is inserted in the inner cavity of the net barrel 7, and an air quality sensor 17 is fixedly arranged in the middle of the inner cavity of the lamp post 1;
fixed mounting has LED white light 12 and LED yellow light 13 that polylith equidistance distributes on the lamp panel of street lamp board 8, haze sensor 18 and air quality sensor 17's data output end and central processing unit 14's data input end are connected, data contrast module 15 and wireless signal transceiver module 16's data access end is connected with central processing unit 14's data access end, wireless signal transceiver module 16's signal and municipal street lamp management host transmission are connected, central processing unit 14 opens and close the module with the white light that controls LED white light 12 and LED yellow light 13 independent control respectively and the module is opened and close automatically controlled to the golden light and is connected.
In this embodiment, the bottom of the lamp post 1 is fixedly connected with a base 6.
In this embodiment, the exhaust fan 2 is located right below the solar photovoltaic panel 3.
In this embodiment, the net drum 7 is a 30-mesh stainless steel net drum, and has a longer service life.
In this embodiment (please refer to fig. 2), the left and right sides of the top cover 4 are fixedly connected with the net barrel 7 through the fixing bolts 9, so that the fixing bolts 9 can be conveniently removed in the later stage to remove the top cover 4 and replace the annular air filter element 11.
In this embodiment (please refer to fig. 2), the side wall of the lamp post 1 located in the inner cavity of the net cylinder 7 is provided with a plurality of openings 10 distributed at equal intervals for ventilation.
In this embodiment, the annular air filter element 11 is an air filter element containing activated carbon, so as to achieve an air purification effect with low cost.
In this embodiment, the solar photovoltaic panel 3 is electrically connected to the exhaust fan 2, and a solar power generation energy-saving and environment-friendly mode is adopted to achieve an efficient treatment effect.
When the anti-haze intelligent lamp pole with the air purification function is used, it needs to be explained that each component is a universal standard component or a component known by technicians in the field, and the structure and the principle of the anti-haze intelligent lamp pole with the air purification function can be known by technicians in the field or can be known by a conventional experimental method.
When the lamp post is used, the net cylinder 7 is arranged on the lamp post 1, the annular air filter element 11 is arranged in the net cylinder 7, so that air can be purified, when the air quality sensor 17 positioned in the inner cavity of the lamp post 1 senses that the air quality is lower than a threshold value, a signal is transmitted to the central processing unit 14, the central processing unit 14 transmits the signal to the wireless signal transceiver module 16 and finally transmits the signal to the municipal street lamp management host for reminding, and the annular air filter element can be replaced; when haze sensor 18 senses that data is higher than the threshold value, central processing unit 14 control golden yellow light opens and close the module and open to open LED yellow light 13, thereby take place the yellow light and illuminate the road surface, because the penetrating power of yellow light is stronger, improve the illumination ability in haze weather.
While there have been shown and described what are at present considered the fundamental principles and essential features of the invention and its advantages, it will be apparent to those skilled in the art that the invention is not limited to the details of the foregoing exemplary embodiments, but is capable of other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.
Claims (8)
1. The utility model provides an antifog haze wisdom lamp pole with air purification function, its characterized in that: the solar street lamp comprises a lamp post (1), wherein a solar photovoltaic panel (3) is fixedly connected to the upper part of the lamp post (1), a street lamp panel (8) is fixedly arranged on the upper part of the right side of the lamp post (1) in an upward inclining manner, and an exhaust fan (2) is fixedly communicated with the upper part of the left side of the lamp post (1); a control box (5) is fixedly arranged on the front side of the lower part of the lamp post (1), a central processing unit (14), a data comparison module (15) and a wireless signal receiving and transmitting module (16) are fixedly arranged in the inner cavity of the control box (5), and a haze sensor (18) is fixedly arranged on the lamp post (1) in the middle part above the control box (5);
the lower part of the lamp post (1) is fixedly sleeved with a net barrel (7), the upper part of the net barrel (7) is covered with a top cover (4), an annular air filter element (11) is inserted into the inner cavity of the net barrel (7), and an air quality sensor (17) is fixedly arranged in the middle of the inner cavity of the lamp post (1);
fixed mounting has LED white light (12) and LED yellow light (13) that the polylith equidistance distributes on the lamp panel of street lamp board (8), the data output end of haze sensor (18) and air quality sensor (17) is connected with the data input end of central processing unit (14), the data of data contrast module (15) and wireless signal transceiver module (16) are gone out the income end and are connected with the data of central processing unit (14) play the income end, the signal and the municipal street lamp management host computer transmission connection of wireless signal transceiver module (16), central processing unit (14) and the white light of controlling LED white light (12) respectively and LED yellow light (13) independent control open and close the module and the automatically controlled connection of golden light start and close the module.
2. The anti-haze intelligent lamp pole with the air purifying function as claimed in claim 1, wherein: the bottom of the lamp post (1) is fixedly connected with a base (6).
3. The anti-haze intelligent lamp pole with the air purifying function as claimed in claim 1, wherein: the exhaust fan (2) is positioned under the solar photovoltaic panel (3).
4. The anti-haze intelligent lamp pole with the air purifying function as claimed in claim 1, wherein: the net cylinder (7) is a 30-mesh stainless steel net cylinder.
5. The anti-haze intelligent lamp pole with the air purifying function as claimed in claim 1, wherein: the left side and the right side of the top cover (4) are fixedly connected with the net barrel (7) through fixing bolts (9).
6. The anti-haze intelligent lamp pole with the air purifying function as claimed in claim 1, wherein: the side wall of the lamp post (1) positioned at the inner cavity part of the net barrel (7) is provided with a plurality of through holes (10) distributed at equal intervals.
7. The anti-haze intelligent lamp pole with the air purifying function as claimed in claim 1, wherein: the annular air filter element (11) is an air filter element containing activated carbon.
8. The anti-haze intelligent lamp pole with the air purifying function as claimed in claim 1, wherein: the solar photovoltaic panel (3) is electrically connected with the exhaust fan (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011081588.XA CN112283674A (en) | 2020-09-30 | 2020-09-30 | Antifog haze wisdom lamp pole with air purification function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011081588.XA CN112283674A (en) | 2020-09-30 | 2020-09-30 | Antifog haze wisdom lamp pole with air purification function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112283674A true CN112283674A (en) | 2021-01-29 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011081588.XA Pending CN112283674A (en) | 2020-09-30 | 2020-09-30 | Antifog haze wisdom lamp pole with air purification function |
Country Status (1)
| Country | Link |
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| CN (1) | CN112283674A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115487615A (en) * | 2022-10-30 | 2022-12-20 | 深圳市伟兴业建设有限公司 | Dust pelletizing system and dust collecting equipment of municipal environmental protection engineering |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN206802980U (en) * | 2017-04-17 | 2017-12-26 | 上海勤电信息科技有限公司 | Haze wisdom lamp stand |
| CN108224306A (en) * | 2018-01-02 | 2018-06-29 | 温岭市创嘉信息科技有限公司 | A kind of environmental-friendly street lamp |
| CN108534226A (en) * | 2018-03-09 | 2018-09-14 | 山西赛文思达科技有限公司 | A kind of intelligent air cleaning system built suitable for smart city |
| CN109030721A (en) * | 2018-06-01 | 2018-12-18 | 上海市政工程设计研究总院（集团）有限公司 | A kind of intelligent signal lamp capable of purifying air |
| CN110906235A (en) * | 2019-12-06 | 2020-03-24 | 皖西学院 | City intelligence street lamp |
-
2020
- 2020-09-30 CN CN202011081588.XA patent/CN112283674A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN206802980U (en) * | 2017-04-17 | 2017-12-26 | 上海勤电信息科技有限公司 | Haze wisdom lamp stand |
| CN108224306A (en) * | 2018-01-02 | 2018-06-29 | 温岭市创嘉信息科技有限公司 | A kind of environmental-friendly street lamp |
| CN108534226A (en) * | 2018-03-09 | 2018-09-14 | 山西赛文思达科技有限公司 | A kind of intelligent air cleaning system built suitable for smart city |
| CN109030721A (en) * | 2018-06-01 | 2018-12-18 | 上海市政工程设计研究总院（集团）有限公司 | A kind of intelligent signal lamp capable of purifying air |
| CN110906235A (en) * | 2019-12-06 | 2020-03-24 | 皖西学院 | City intelligence street lamp |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115487615A (en) * | 2022-10-30 | 2022-12-20 | 深圳市伟兴业建设有限公司 | Dust pelletizing system and dust collecting equipment of municipal environmental protection engineering |
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Application publication date: 20210129 |