CN113867218A - Clean space environment detection control device - Google Patents
Clean space environment detection control device Download PDFInfo
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- CN113867218A CN113867218A CN202111176577.4A CN202111176577A CN113867218A CN 113867218 A CN113867218 A CN 113867218A CN 202111176577 A CN202111176577 A CN 202111176577A CN 113867218 A CN113867218 A CN 113867218A
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- 238000001514 detection method Methods 0.000 title claims abstract description 35
- 239000007787 solid Substances 0.000 claims abstract description 11
- 239000004744 fabric Substances 0.000 claims abstract description 9
- 230000000737 periodic effect Effects 0.000 claims abstract description 7
- 238000004891 communication Methods 0.000 claims description 10
- 230000005540 biological transmission Effects 0.000 claims description 9
- 230000000903 blocking effect Effects 0.000 claims description 6
- 229910000831 Steel Inorganic materials 0.000 claims description 4
- 230000000149 penetrating effect Effects 0.000 claims description 4
- 239000010959 steel Substances 0.000 claims description 4
- 238000003466 welding Methods 0.000 claims description 3
- 230000005611 electricity Effects 0.000 claims 1
- 239000000428 dust Substances 0.000 abstract description 10
- 230000000694 effects Effects 0.000 abstract description 4
- 238000001914 filtration Methods 0.000 abstract description 3
- 238000000034 method Methods 0.000 abstract description 3
- 238000000746 purification Methods 0.000 description 6
- 238000009434 installation Methods 0.000 description 5
- 238000004519 manufacturing process Methods 0.000 description 3
- 238000003825 pressing Methods 0.000 description 3
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
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- 206010063385 Intellectualisation Diseases 0.000 description 1
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B19/00—Programme-control systems
- G05B19/02—Programme-control systems electric
- G05B19/04—Programme control other than numerical control, i.e. in sequence controllers or logic controllers
- G05B19/042—Programme control other than numerical control, i.e. in sequence controllers or logic controllers using digital processors
- G05B19/0423—Input/output
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B2219/00—Program-control systems
- G05B2219/20—Pc systems
- G05B2219/25—Pc structure of the system
- G05B2219/25257—Microcontroller
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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
- Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
- Y02B30/70—Efficient control or regulation technologies, e.g. for control of refrigerant flow, motor or heating
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- Engineering & Computer Science (AREA)
- Automation & Control Theory (AREA)
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Abstract
The invention discloses a clean space environment detection control device in the technical field of environment acquisition control systems, which comprises a central controller, an exhaust system, a fresh air system, a gas detection module, a solid detection module and a pressure difference sensor, wherein the fresh air system is provided with a periodic replacement mechanism, the central controller sends instructions, the gas detection module, the solid detection module and the differential pressure sensor collect gas pressure and solid dust signals in the space where the equipment is installed, and controls the fresh air system and the air exhaust system to keep the air pressure in the space the same as the outside, avoids the dust entering the space due to the pressure difference, has high intelligent degree, on the other hand, the fresh air system can be operated at regular time by utilizing the timer, the replacement of the internal filter cloth is completed, the filtering effect is improved, the entering of dust in the process of maintaining the internal and external air pressure is reduced, and the whole system is high in stability and creative.
Description
Technical Field
The invention relates to the technical field of environment acquisition control systems, in particular to a clean space environment detection control device.
Background
In the pharmaceutical factory, food processing factory, manufacturers such as daily chemical product factory need to construct a relatively sealed clean space, it is especially important to the pressure control of clean space, generally, it is to ensure that the inside of the clean space is positive pressure (if negative pressure, unpurified gas outside the clean space can enter the clean space from door seams, window seams and the like, and thus products processed in the clean space are polluted), in addition, the equipment inside the current clean space (such as central air conditioner, production line equipment, lighting equipment and the like) is independent work, the whole control system inside the clean space is relatively complex, the intellectualization is relatively low, and the work is influenced, so that a more efficient clean space control system needs to be designed urgently in the actual production, and based on the above, the invention designs a clean space environment detection control device to solve the above problems.
Disclosure of Invention
The present invention is directed to a clean space environment detection and control device, so as to solve the problem of the prior art that a more efficient clean space control system is urgently needed to be designed in the actual production.
In order to achieve the purpose, the invention provides the following technical scheme: the utility model provides a clean space environment detection control device, includes central controller, exhaust system and new trend system, central controller is connected with commercial power module, relay module, gaseous detection module, solid detection module, pressure differential sensor, wireless communication module and display, wireless communication module is connected with mobile terminal, exhaust system and new trend system are connected to the relay module, be connected with the timer between new trend system and the commercial power module, the new trend system is provided with the periodic replacement mechanism.
Preferably, exhaust system includes first side pipe, install first filter screen and manual grid inside and outside the left side of first side pipe respectively, the right side of first side pipe is fixed with the exhaust fan through the support, the top slidable mounting of first side pipe has first rack, first rack is connected with the control lever of manual grid through the wire rope that runs through in first filter screen, first rack is provided with expanding spring through welding dog level, the inner wall rear side of first side pipe is through the vertical rotation of bearing frame and is installed first pivot, the motor shaft of installing second pivot and exhaust fan is rotated respectively through the bevel gear pair in the upper and lower both ends of first pivot, the outer wall of second pivot is fixed with the actuating mechanism with first rack toothing.
Preferably, actuating mechanism includes the cylinder box, the central authorities of cylinder box are provided with the installation through-hole, a pair of locking bolt is installed through the screw hole board in the outside of cylinder box about installation through-hole centrosymmetric, the inner chamber of cylinder box is evenly spaced and is circular distribution and has a plurality of rectangle slots, the inner chamber of rectangle slot slides and pegs graft and has run through the pin in the cylinder box, a plurality of universal balls are evenly installed to the inboard circumference of outer wall of pin.
Preferably, the new trend system includes second side pipe, install purifier and second filter screen inside and outside the left side of second side pipe respectively, purifier's the end of giving vent to anger installs the tuber pipe, the inner chamber of tuber pipe has the suction fan through the support mounting, the conical duct is installed to the outer end of tuber pipe, install electronic air exit between the outer end of conical duct and the right side of second side pipe.
Preferably, the purification device comprises a rectangular hollow block with an air inlet through hole arranged at the left center and the right center, a belt conveying mechanism is rotatably arranged in the inner cavity of the rectangular hollow block, a plurality of filter cloths are oppositely arranged on two sides of a belt of the belt conveying mechanism at intervals, tensioning devices are respectively arranged at the front and the back of an inner cavity of the belt conveying mechanism, compression rings are respectively arranged on the same sides of the outer ends of the two tensioning devices, a corrugated pipe is arranged between the two compression rings, the bottom of the inner cavity of the rectangular hollow block is coaxially and rotatably provided with a third rotating shaft and a fourth rotating shaft at intervals, the outer end of the fourth rotating shaft is connected with a roller of the belt conveying mechanism through a bevel gear pair, the third rotating shaft is provided with a first electric mortise lock through a rotary electric connector, the end part of a bolt of the first electric mortise lock is connected with a fourth rotating shaft in an inserting mode through a conical block, and the other end of the third rotating shaft is connected with a motor shaft of the suction fan through an L-shaped transmission shaft.
Preferably, the tensioning device comprises a vertical plate, second racks are horizontally installed on the surface of the vertical plate in a vertical sliding mode, a transmission gear is installed between the two second racks in a meshing and rotating mode, and a second electric plug lock is horizontally installed at the end portion of one of the second racks.
Preferably, a mobile phone remote control switch is further connected between the commercial power module and the fresh air system.
Preferably, the mobile terminal is a smart phone or a tablet computer.
Compared with the prior art, the invention has the beneficial effects that: the central controller can send instructions, the gas detection module, the solid detection module and the differential pressure sensor can collect gas pressure and solid dust signals in the space of the installation equipment, the fresh air system and the exhaust system are controlled to keep the gas pressure in the space the same as the outside, dust is prevented from entering the space due to differential pressure, the intelligent degree is high, on the other hand, the fresh air system can be operated at regular time by using the timer, the replacement of filter cloth in the fresh air system is completed, the filtering effect is improved, the dust entering in the process of maintaining the gas pressure inside and outside is reduced, and the whole system is high in stability and creative.
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 control schematic of the present invention;
FIG. 2 is a schematic view of the exhaust system of FIG. 1;
FIG. 3 is a schematic view of the drive mechanism of FIG. 2;
FIG. 4 is a schematic view of the fresh air system of FIG. 1;
FIG. 5 is a schematic view of the purification apparatus shown in FIG. 4;
fig. 6 is a schematic view of the tensioner of fig. 5.
In the drawings, the components represented by the respective reference numerals are listed below:
1-a central controller, 2-an exhaust system, 3-a fresh air system, 4-a relay module, 5-a mains supply module, 6-a gas detection module, 7-a solid detection module, 8-a differential pressure sensor, 9-a wireless communication module, 10-a mobile terminal, 11-a display, 12-a timer, 20-a first square tube, 21-a manual grid, 22-a first filter screen, 23-an exhaust fan, 24-a first rack, 25-a steel wire rope, 26-a telescopic spring, 27-a second rotating shaft, 28-a first rotating shaft, 29-a driving mechanism, 290-a cylindrical box, 291-an installation through hole, 292-a locking bolt, 293-a rectangular slot, 294-a stop lever, 295-a universal ball and 30-a second square tube, 31-a second filter screen, 32-a purification device, 33-an air pipe, 34-an air suction fan, 35-a conical pipe, 36-an electric exhaust outlet, 320-a rectangular hollow block, 321-a belt conveying mechanism, 322-a filter cloth, 323-a tensioning device, 324-a press ring, 325-an L-shaped transmission shaft, 326-a third rotating shaft, 327-a fourth rotating shaft, 328-a first electric plug lock, 3230-a vertical plate, 3231-a second rack, 3232-a transmission gear and 3233-a second electric plug lock.
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.
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 merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.
Referring to fig. 1, the present invention provides a technical solution: a clean space environment detection control device comprises a central controller 1, an exhaust system 2 and a fresh air system 3, wherein the central controller 1 is connected with a mains supply module 5, a relay module 4, a gas detection module 6, a solid detection module 7, a pressure difference sensor 8, a wireless communication module 9 and a display 11, the gas detection module 6, the solid detection module 7, the pressure difference sensor 8, the wireless communication module 9 and the display 11 are also arranged on the wall, the wireless communication module 9 is connected with a mobile terminal 10, the relay module 4 is connected with the exhaust system 2 and the fresh air system 3, a timer 12 is connected between the fresh air system 3 and the mains supply module 5, the timer 12 is arranged on the side face of a door of a clean space, the fresh air system 3 is provided with a periodic replacement mechanism, and a mobile phone remote control switch is connected between the mains supply module 5 and the fresh air system 3, the replacement of the periodic replacement mechanism of the fresh air system 3 is conveniently remotely controlled at any time, dust is prevented from being sucked into the space, and the mobile terminal 10 is a smart phone or a tablet personal computer and is convenient to carry and operate at any time.
Referring to fig. 2 and 3, the exhaust system 2 includes a first square pipe 20, a first filter screen 22 and a manual grille 21 are respectively installed inside and outside a left side of the first square pipe 20, an exhaust fan 23 is fixed on a right side of the first square pipe 20 through a bracket, a first rack 24 is slidably installed on a top of the first square pipe 20, the first rack 24 is connected with a control rod of the manual grille 21 through a steel wire rope 25 penetrating through the first filter screen 22, a telescopic spring 26 is horizontally arranged on the first rack 24 through a welding stopper, a first rotating shaft 28 is vertically and rotatably installed on a rear side of an inner wall of the first square pipe 20 through a bearing seat, a motor shaft of a second rotating shaft 27 and the exhaust fan 23 are respectively rotatably installed on upper and lower ends of the first rotating shaft 28 through a bevel gear pair, and a driving mechanism 29 engaged with the first rack 24 is fixed on an outer wall of the second rotating shaft 27; specifically, the method comprises the following steps: the driving mechanism 29 comprises a cylindrical box 290, a mounting through hole 291 is arranged in the center of the cylindrical box 290, a pair of locking bolts 292 are arranged on the outer side of the cylindrical box 290 centrally symmetrically with respect to the mounting through hole 291 through a threaded hole plate, a plurality of rectangular slots 293 are evenly and circularly distributed in the inner cavity of the cylindrical box 290 at intervals, a blocking rod 294 penetrating through the cylindrical box 290 is inserted and connected in a sliding manner in the inner cavity of the rectangular slot 293, a plurality of universal balls 295 are evenly arranged on the inner circumference of the outer wall of the blocking rod 294, when exhaust is needed, the exhaust fan 23 is opened, at the moment, the first rotating shaft 28 rotating at high speed drives the cylindrical box 290 to rotate through a bevel gear pair, due to the action of centrifugal force, the blocking rod 294 is pushed out by the universal balls 295 and can be inserted into the inner cavity of the first rack 24, the blocking rod 294 rotates at the same time, so that the first rack 24 is moved outwards, the manual grid 21 is pulled by the steel wire rope 25 to complete the opening of the manual grid 21, inside and outside circulation of air, when stopping the exhaust, exhaust fan 23 stops, and cylinder box 290 loses the rotational speed, and pin 294 moves back, and first rack 24 moves inwards under the effect of expanding spring 26, and wire rope 25 loses the pulling force, and manual grid 21 resets closed under the torsional action of commentaries on classics leaf installation axle, avoids debris to get into the space.
Referring to fig. 4-6, the fresh air system 3 includes a second square pipe 30, a purification device 32 and a second filter screen 31 are respectively installed inside and outside the left side of the second square pipe 30, an air pipe 33 is installed at the air outlet end of the purification device 32, a suction fan 34 is installed in the inner cavity of the air pipe 33 through a support, a tapered pipe 35 is installed at the outer end of the air pipe 33, and an electric air outlet 36 is installed between the outer end of the tapered pipe 35 and the right side of the second square pipe 30, specifically: the purification device 32 comprises a rectangular hollow block 320 with an air inlet through hole arranged at the left center and the right center, a belt conveying mechanism 321 is rotatably arranged in an inner cavity of the rectangular hollow block 320, a plurality of filter cloths 322 are oppositely arranged at intervals on two sides of a belt of the belt conveying mechanism 321, tensioning devices 323 are respectively arranged at the front and the rear of the inner cavity of the belt conveying mechanism 321, pressing rings 324 are respectively arranged at the same sides of the outer ends of the two tensioning devices 323, a corrugated pipe is arranged between the two pressing rings 324, a third rotating shaft 326 and a fourth rotating shaft 327 are coaxially and rotatably arranged at the bottom of the inner cavity of the rectangular hollow block 320 at intervals, the outer end of the fourth rotating shaft 327 is connected with a roller of the belt conveying mechanism 321 through a bevel gear pair, a first electric plug 328 is arranged on the third rotating shaft 326 through a rotary electric connector, the end of a plug of the first electric plug 328 is inserted into the fourth rotating shaft 327 through a conical block, and the other end of the third rotating shaft 326 is connected with a motor shaft of the suction fan 34 through an L-shaped transmission shaft 325, the tensioning device 323 comprises a vertical plate 3230, a second rack 3231 is horizontally arranged on the surface of the vertical plate 3230 in a vertical sliding manner, a transmission gear 3232 is arranged between the two second racks 3231 in a meshing and rotating manner, a second electric latch 3233 is horizontally arranged at the end part of one second rack 3231, when air suction is needed, an electric air outlet 36 is opened, an air suction fan 34 works, meanwhile, the second electric latch 3233 is electrically extended to move the two second racks 3231 outwards, the press ring 324 is used for pressing the filter cloth 322 to cover the air inlet through hole, gas can only enter the space through a channel formed by the filter cloth 322 and the corrugated pipe, the filter cloth 322 is matched with the second filter screen 31 for dust filtration, when the filter cloth 322 needs to be replaced, the first electric mortise lock 328 is electrically extended, the L-shaped transmission shaft 325 adopts two optical axes installed by a bevel gear pair and a supporting seat, the third rotating shaft 326 drives the fourth rotating shaft 327 to rotate, and the belt conveying mechanism 321 rotates for a certain time.
The working principle is as follows: through gaseous detection module 6, atmospheric pressure and dust thing in solid detection module 7 and the 8 detection spaces of differential pressure sensor, remote communication is accomplished to wireless communication module 9 cooperation mobile terminal 10, display 11 shows and detects numerical value, timer 12 can regularly drive the periodic replacement mechanism that new trend system 3 set up, filter cloth 322's periodic replacement promptly, avoid new trend system 3's filter effect to weaken and influence the use, new trend system 3 cooperates exhaust system 2 to make inside and outside atmospheric pressure roughly the same, it gets into the space from gate seam and window seam to reduce the dust.
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 (8)
1. The utility model provides a clean space environment detection controlling means, includes central controller (1), exhaust system (2) and new trend system (3), its characterized in that: central controller (1) is connected with commercial power module (5), relay module (4), gaseous detection module (6), solid detection module (7), differential pressure sensor (8), wireless communication module (9) and display (11), wireless communication module (9) are connected with mobile terminal (10), exhaust system (2) and new trend system (3) are connected in relay module (4), be connected with timer (12) between new trend system (3) and commercial power module (5), new trend system (3) are provided with the periodic replacement mechanism.
2. The clean space environment detection control apparatus according to claim 1, wherein: the exhaust system (2) comprises a first square pipe (20), a first filter screen (22) and a manual grating (21) are respectively installed inside and outside the left side of the first square pipe (20), an exhaust fan (23) is fixed on the right side of the first square pipe (20) through a support, a first rack (24) is installed at the top of the first square pipe (20) in a sliding mode, the first rack (24) is connected with a control rod of the manual grating (21) through a steel wire rope (25) penetrating through the first filter screen (22), a telescopic spring (26) is horizontally arranged on the first rack (24) through a welding stop block, a first rotating shaft (28) is vertically installed on the rear side of the inner wall of the first square pipe (20) through a bearing seat in a rotating mode, and the upper end and the lower end of the first rotating shaft (28) are respectively installed with an exhaust motor shaft of a second rotating shaft (27) and the exhaust fan (23) through a bevel gear pair in a rotating mode, and a driving mechanism (29) meshed with the first rack (24) is fixed on the outer wall of the second rotating shaft (27).
3. The clean space environment detection control apparatus according to claim 2, wherein: the driving mechanism (29) comprises a cylindrical box (290), wherein a mounting through hole (291) is formed in the center of the cylindrical box (290), a pair of locking bolts (292) is mounted on the outer side of the cylindrical box (290) through a threaded hole plate in a manner of central symmetry of the mounting through hole (291), a plurality of rectangular slots (293) are uniformly distributed in the inner cavity of the cylindrical box (290) at intervals in a circular manner, blocking rods (294) penetrating through the cylindrical box (290) are inserted into the inner cavity of the rectangular slots (293) in a sliding manner, and a plurality of universal balls (295) are uniformly mounted on the inner circumference of the outer wall of the blocking rods (294).
4. The clean space environment detection control apparatus according to claim 1, wherein: fresh air system (3) include second side pipe (30), install purifier (32) and second filter screen (31) inside and outside the left side of second side pipe (30) respectively, tuber pipe (33) are installed to the end of giving vent to anger of purifier (32), there is suction fan (34) inner chamber of tuber pipe (33) through the support mounting, conical duct (35) are installed to the outer end of tuber pipe (33), install electronic air exit (36) between the outer end of conical duct (35) and the right side of second side pipe (30).
5. The clean space environment detection control apparatus of claim 4, wherein: purifier (32) sets up the hollow block of rectangle (320) of air inlet through-hole including controlling central authorities, belt conveyor (321) are installed in the inner chamber rotation of the hollow block of rectangle (320), the belt both sides interval of belt conveyor (321) is provided with a plurality of filter cloth (322) relatively, overspeed device tensioner (323) are all installed around the inner chamber of belt conveyor (321), two clamping ring (324) are all installed to the outer end homonymy of overspeed device tensioner (323), two install the bellows between clamping ring (324), third pivot (326) and fourth pivot (327) are installed in the coaxial rotation of inner chamber bottom interval of the hollow block of rectangle (320), the outer end of fourth pivot (327) is connected with belt conveyor (321) roller through the bevel gear pair, first lock electric mortiser (328) are installed through rotatory electricity joint in third pivot (326), the end part of a bolt of the first electric mortise lock (328) is inserted into the fourth rotating shaft (327) through a conical block, and the other end of the third rotating shaft (326) is connected with a motor shaft of the suction fan (34) through an L-shaped transmission shaft (325).
6. The clean space environment detection control apparatus of claim 5, wherein: the tensioning device (323) comprises a vertical plate (3230), second racks (3231) are horizontally installed on the surface of the vertical plate (3230) in a sliding mode up and down, a transmission gear (3232) is installed between the two second racks (3231) in a meshing and rotating mode, and a second electric plug lock (3233) is horizontally installed at the end portion of one second rack (3231).
7. The clean space environment detection control apparatus according to claim 1, wherein: and a mobile phone remote control switch is also connected between the commercial power module (5) and the fresh air system (3).
8. The clean space environment detection control device according to claim 1, wherein the mobile terminal (10) is a smart phone or a tablet computer.
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| CN202111176577.4A CN113867218B (en) | 2021-10-09 | 2021-10-09 | Clean space environment detection control device |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116382126A (en) * | 2022-12-30 | 2023-07-04 | 贝恩睿智探测技术(嘉兴)有限公司 | Intelligent coal blending management system and method based on Internet of things |
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| CN113867218B (en) | 2024-05-03 |
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