CN105696899B - A kind of building external sunshade control system and control method - Google Patents
A kind of building external sunshade control system and control method Download PDFInfo
- Publication number
- CN105696899B CN105696899B CN201610172050.7A CN201610172050A CN105696899B CN 105696899 B CN105696899 B CN 105696899B CN 201610172050 A CN201610172050 A CN 201610172050A CN 105696899 B CN105696899 B CN 105696899B
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- aluminum alloy
- plc
- temperature
- sunshade
- frame
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Classifications
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- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05F—DEVICES FOR MOVING WINGS INTO OPEN OR CLOSED POSITION; CHECKS FOR WINGS; WING FITTINGS NOT OTHERWISE PROVIDED FOR, CONCERNED WITH THE FUNCTIONING OF THE WING
- E05F15/00—Power-operated mechanisms for wings
- E05F15/70—Power-operated mechanisms for wings with automatic actuation
- E05F15/71—Power-operated mechanisms for wings with automatic actuation responsive to temperature changes, rain, wind or noise
-
- E—FIXED CONSTRUCTIONS
- E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
- E06B—FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
- E06B9/00—Screening or protective devices for wall or similar openings, with or without operating or securing mechanisms; Closures of similar construction
- E06B9/24—Screens or other constructions affording protection against light, especially against sunshine; Similar screens for privacy or appearance; Slat blinds
-
- 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
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A30/00—Adapting or protecting infrastructure or their operation
- Y02A30/24—Structural elements or technologies for improving thermal insulation
-
- 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
- Y02B80/00—Architectural or constructional elements improving the thermal performance of buildings
Landscapes
- Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Operating, Guiding And Securing Of Roll- Type Closing Members (AREA)
- Building Awnings And Sunshades (AREA)
- Blinds (AREA)
Abstract
The invention discloses a kind of building external sunshade control system and control method, the system includes PLC and multiple temperature and luminance sensor；Described multiple temperature and luminance sensor are separately positioned in multiple sunshade units of building, and sunshade unit includes the transmission device that driving folding type aluminum alloy framework is opened, the stopping means and self-locking device and the electro-motor of the rotary shutter device rotation of driving that lock folding type aluminum alloy framework；Described PLC and temperature and luminance sensor, stopping means and self-locking device, transmission device and the wired or wireless connection of electro-motor.The system of the present invention can meet the different requirements of building energy conservation, indoor lighting simultaneously, but also with a variety of " expressions " change, enrich elevation of building effect.
Description
Technical field
The invention belongs to architectural design field, and in particular to a kind of building external sunshade control system and control method.
Background technology
In the world today, energy-conservation has become themes of the times, and China's building energy consumption account for the 27.8% of whole society's total energy consumption
More than, exterior window ranks first as most weak link, energy consumption row are saved in architectural exterior-protecting construction.Therefore architectural shading has become
The hot issue of current building energy saving field.Existing Building Outside Shading of Window product, mostly fixed structure or form is adjusted manually, though
Partially or fully sunshade can be so realized, but sunshade can not be adjusted according to the change of sun altitude and the demand of user
Component, have the function that both to meet that sunshade requirement and can improves Interior Illumination Environment.In addition, common Building Outside Shading of Window is not only with building
Build that type is not in tune, a kind of effective means of Architecture Decoration Design can not be turned into, and easily cause the stop of sight.
The content of the invention
It is an object of the invention to solve above-mentioned prior art deficiency, there is provided a kind of building external sunshade control system and control
Method processed.The system can meet the different requirements of building energy conservation, indoor lighting simultaneously, but also become with a variety of " expressions "
Change, enrich elevation of building effect.
In order to realize above-mentioned task, the present invention uses following technical measures：
A kind of building external sunshade control system, including PLC and multiple temperature and luminance sensor；Described is more
Individual temperature and luminance sensor are separately positioned in multiple sunshade units of building, and sunshade unit includes driving Foldable-type aluminum and closed
Transmission device, the stopping means of locking folding type aluminum alloy framework and the self-locking device and the rotary blinds of driving that golden framework is opened
The electro-motor of device rotation；Described PLC and temperature and luminance sensor, stopping means and self-locking device, transmission
Device and the wired or wireless connection of electro-motor.
PLC is connected by interchanger with the distributed I/O unit in sunshade unit, distributed I/O unit and temperature
And luminance sensor, stopping means and self-locking device, transmission device connect with electro-motor.
Connected between described interchanger and distributed I/O unit by EthCAT buses.
PLC is connected with wireless distributed controller, and the first wireless module is provided with wireless distributed controller,
Luminance sensor, stopping means and self-locking device, transmission device and electro-motor are wireless by the second wireless module and first
Module connects.
PLC is connected with touch-screen realizes that parameter setting and data are shown.
The aluminum alloy frame of described folding is formed by the first aluminum alloy frame and the second aluminum alloy frame are be hinged；Wherein
One aluminum alloy frame one end is hinged on steel structure frame, and described transmission device is horizontally installed on the first aluminum alloy frame and steel
Structural framing hinged place；Second aluminum alloy frame is slidably connected by roller and the track on steel structure frame, track
On be provided with stopping means and self-locking device；The transmission device includes power transmission shaft and hydraulic motor；In the middle part of described power transmission shaft
It is hinged with the first aluminum alloy frame, both ends of the drive shaft is equipped with lifting wheel, and lifting wheel is connected with the mounting seat on steel structure frame,
Steel wire rope is wound with lifting wheel, the free end of steel wire rope is connected with the roller of the second aluminum alloy frame；Described hydraulic motor
It is arranged on the middle part of power transmission shaft；Be provided with torsion spring on power transmission shaft, two ends of torsion spring respectively with steel structure frame and power transmission shaft
Connection.
A kind of control method of building external shading system, comprises the following steps：
Temperature and luminance sensor gather the temperature and luminance signal inside sunshade unit in real time, feed back to PLC；
PLC compares the setting threshold values of real time temperature and luminance signal and temperature and luminance signal：
If real time temperature and luminance signal are more than the second setting threshold values, PLC control less than the first setting threshold values
The rotary shutter device Unscrew of electrical motor driven；Conversely, rotary shutter device is then driven to close；
If real time temperature and luminance signal fold less than the second setting threshold values, PLC control actuator drives
Formula aluminum alloy frame open, when stacked aluminum alloy frame open to setting position after, PLC control stopping means and certainly
Locking device locks folding type aluminum alloy framework；Conversely, then drive stopping means and self-locking device to open, folding type aluminum alloy framework
Recover closure.
The speed of described actuator drives folding type aluminum alloy framework opened/closed is the 60mm/ seconds.
During rotary shutter device rotation, folding type aluminum alloy framework is in the close position.
Compared with prior art, the invention has the advantages that：
Aluminum alloy frame and shutter device of the present invention, building shape-designing, lifting building overall quality can be enriched.Fold
The open and close of formula aluminum alloy frame are according to the requirement adjust automatically of indoor temperature, intensity of solar radiation and Interior Illumination Environment
The unlatching scope and area of sunshade, reach preferable energy-saving effect.The light that rotary shutter device is used for small range is adjusted.From
Dynamic control system can realize the purpose automatically controlled, realize full-automatic detection, feedback and control, and it is inaccurate to change manpower control
The drawbacks of true.Sunshading board structure can be adjusted according to the change of sun altitude and the demand of user, reach and both meet sunshade
It is required that and can improves the effect of Interior Illumination Environment.
Further, folding aluminum alloy frame one end is hinged, and one end is connected with track, by setting actuator drives
Aluminum alloy frame is opened and closed, and is locked by stopping means and self-locking device, simple in construction, is opened and closed
Precise control.Transmission device is controlled by hydraulic motor, and driving is stable, and control is accurate, lifting wheel winding rope, torsion spring accumulation of energy,
Aluminum alloy frame folds, and whole control is synchronous, no hysteresis.Torsion spring is released energy folded state and closed automatically, it is not necessary to motor work
Make, energy-saving and emission-reduction.
The control method of the present invention can be automatically adjusted sunshade area according to different temperature and sunray, realize
Full automation controls, and equipment of the invention uses Controlled by Programmable Controller, and can the automatic operation acts flow of storing multiple sets,
Meet daily demand for control.
Brief description of the drawings
Fig. 1 is the elevational schematic view of shading system of the present invention；
Fig. 2 is that the side of shading system of the present invention folds schematic diagram；
Fig. 3 is transmission structures schematic diagram of the present invention；
Fig. 4 is the sun-shading louver schematic diagram of shading system of the present invention；
Fig. 5 is the cable control system schematic diagram of shading system of the present invention；
Fig. 6 is the wireless control system schematic diagram of shading system of the present invention.
Wherein：100 be folding sunshade unit；101 be low-rise building；102 be high-rise；200 be steel construction
Framework；300 be aluminum alloy frame；301 be hinge；302 be the first aluminum alloy frame；303 be stopping means and self-locking device；
304 be track；305 be the second aluminum alloy frame；400 be transmission device；401 be steel wire rope；402 be torsion spring；403 be hydraulic pressure horse
Reach；404 be power transmission shaft；405 be lifting wheel；500 be shutter device；501 be rotary sun-shading louver；502 be electro-motor；
503 be fixed sun-shading louver；504 be sun-shading louver piece；505 be rotating shaft core；506 be blinds drive link；507 consolidate for blinds
Determine frame；508 be push rod connecting seat；601 be touch-screen；602 be temperature and brightness sensor；603 be PLC；604 are
Cable；605 be interchanger；606 be EthCAT Microsecond grade buses；607 be sunshade motor；608 be distributed I/O unit；701 are
Wireless module；702 be electric wire；703 wireless distributed controllers.
Embodiment
Referring to the drawings, the embodiment of the present invention is provided, the present invention will be further described.
As shown in figure 1, a kind of building external sunshade control system of the present invention, should installed in the front of bottom building 102
Shading system is used for the sunny slope for blocking building 102, and bottom building 102 is connected with high-rise 101.Shading system bag
Multiple sunshade units 100 being set up in parallel are included, sunshade unit 100 is fixed and/or folding sunshade unit.
As shown in Fig. 2 aluminum alloy frame 300 is arranged on steel structure frame 200, metal is installed on aluminum alloy frame 200
Sun-shading louver 500, for sunshade.Folding aluminum alloy frame is by the first aluminum alloy frame 302 and the second aluminum alloy frame 305
It is be hinged to form；First aluminum alloy frame 302 is hinged on steel structure frame 200, and the first aluminum alloy frame 302 and steel construction frame
The hinged place of frame 200 is provided with transmission device 400, and the second aluminum alloy frame 305 is by roller with being arranged on steel structure frame 200
Aluminum alloy rail 304 is slidably connected, and stopping means and self-locking device 303 are provided with aluminum alloy rail 304.Work as transmission device
400 the second aluminum alloy frames 305 of driving along aluminum alloy rail 304 move when, the first aluminum alloy frame 302 and the second aluminum alloy frame
Frame 305 produces folding, and carries out spacing and locking by stopping means and self-locking device 303.
Wherein, the face of steel structure frame at least four, its face of facade at least two, it is provided with and can rolls on adjacent two faces
Folded aluminum alloy frame, and the space of the unlatching of two folding aluminum alloy frames is adjacent.It is empty to increase the incidence of sunshine
Between.
Aluminum alloy frame 300 provided with sun-shading louver 500 is laid on described steel structure frame 200 and realized all completely
Sunshade, transmission device 400 drive folding aluminum alloy frame 300 is folded against to realize local sunshade.
As shown in figure 3, the transmission device 400 includes power transmission shaft 404, lifting wheel 405, hydraulic motor 403, plating Dacroment
Torsion spring 402 and steel wire rope 402 etc..The middle part of power transmission shaft 404 is hinged with aluminum alloy frame, and both sides are provided with lifting wheel 405 and by carrying
Rise wheel 405 to fix with steel structure frame 200, be provided with stainless steel steel wire rope 401 in lifting wheel 405, the free end of steel wire rope 401 and
The roller connection of second aluminum alloy frame 305.The middle part of power transmission shaft 404 is provided with hydraulic motor 403, is provided with power transmission shaft 404
Dacroment torsion spring 402 is plated, the one end of plating Dacroment torsion spring 402 is fixed with steel structure frame 200, and the other end is fixed with power transmission shaft 404.
Transmission device 400 is arranged to full-length, can freely be spliced for different aluminum alloy frames 300.
Its operation principle is：Hydraulic motor 403 drives power transmission shaft 404 to rotate, the accumulation of energy of torsion spring 402, and lifting wheel 405, which rotates, to be made
Steel wire rope 401, which winds free end, to be shortened, and then the second aluminum alloy frame 305 moves along track to the first aluminum alloy frame 302, the
One aluminum alloy frame 302 and the second aluminum alloy frame 305, which are realized, to be folded.When hydraulic motor 403 is stopped, stopping means and from
Locking device 303 is opened, and releases energy in torsion spring 402, the second aluminum alloy frame 305 is transported along track away from the first aluminum alloy frame 302
Dynamic, the first aluminum alloy frame 302 and the second aluminum alloy frame 305 are realized and opened.
As shown in figure 4, metal sun-shading louver 500 is installed on the aluminum alloy frame 300.The metal sun-shading louver 500
Including fixed 503 and rotary 501.Rotary 501 include electro-motor 502, sun-shading louver piece 504, rotating shaft core 505,
Blinds drive link 506, blinds fixed mount 507 and push rod connecting seat 508.Rotatable metallic louvre blade 504 is solid by sharf 505
It is scheduled between aluminum alloy frame 300, the end of every rotatable metallic louvre blade 504 is linked to be one with blinds drive link 506
Unit, electro-motor 502 are connected with the push rod connecting seat 508 on blinds drive link 506.Drive blinds real with electro-motor 502
Now overturn.
Referring to Fig. 5, automatic control system of the invention can be according to indoor temperature, intensity of solar radiation and room light
The requirement of environment automatically adjusts the open area of architectural shading, finds out the optimal open area ratio of the shading system under different situations
Example, and can accurately and efficiently control the running of each piece of sunshading board and sun-shading louver.The automatic control system includes touching
Screen 601, PLC 603, EthCAT Microsecond grades bus 606, interchanger 605, distributed I/O unit 608, sunshade motor 607,
Touch-screen 601, temperature and luminance sensor 602 and interchanger 605 are connected with PLC 603, temperature and brightness pass
Sensor 602 is arranged on to be used to gather temperature and the brightness in building 100 in real time on aluminum alloy frame 300, and signal is fed back
To PLC 602, with design temperature and brightness ratio compared with the regulation of progress sunshade unit and the regulation of shutter as desired.
PLC 602 sends a command to interchanger 605, and interchanger 605 connects each screening by EthCAT Microsecond grades bus 606
Positive motor 607, described distributed I/O unit 608 are arranged in the control box of sunshade motor 607, and then control sunshade motor 607
Work and collect the data feedback of temperature and luminance sensor 602 to PLC 603.
As shown in fig. 6, automatic control system can also be wireless connection, and touch-screen 601 and PLC 603, PLC controls
Device 603 processed passes through the firing order of wireless module 701 of wireless distributed controller 703, the wireless module of control sunshade motor 607
701。
A kind of building external sunshade control method, comprises the following steps：
Temperature and luminance sensor 602 gather the temperature and luminance signal inside sunshade unit 100 in real time, feed back to PLC
Controller 603；
PLC 603 compares the setting threshold values of real time temperature and luminance signal and temperature and luminance signal：
If real time temperature and luminance signal are more than the second setting threshold values less than the first setting threshold values, PLC 603 is controlled
Electro-motor 502 processed drives the rotary Unscrew of shutter device 501；Conversely, rotary shutter device 501 is then driven to close；
If real time temperature and luminance signal control transmission device 400 to drive less than the second setting threshold values, PLC 603
Dynamic folding type aluminum alloy framework is opened, after stacked aluminum alloy frame is opened to the position of setting, the control limit of PLC 603
Position device and self-locking device 303 lock folding type aluminum alloy framework；Conversely, then drive stopping means and self-locking device 303 to open,
Folding type aluminum alloy framework recovers closure.
It is the 60mm/ seconds that described transmission device 400, which drives the speed of folding type aluminum alloy framework opened/closed,.
When rotary shutter device 501 rotates, folding type aluminum alloy framework is in the close position.
In addition, the structural attachments of the present invention are provided with caulking gum, from ethylene propylene diene rubber.Fold aluminum alloy frame
The enabling relative altitude of frame is 4500mm, and the speed of opened/closed is the 60mm/ seconds.Operating temperature is -20~70 DEG C.Wind-Pressure Resistance
It is required that it is 9 grades.H profile steel load bearing beam 80kgf/m on steel structure frame 2002。
The control action of Motorized blind, each sunshading board can monolithic operation, can also be programmed according to customer requirement
Operation.When blinds is run, sunshade unit is in home position.When sunshade unit is run, blinds need to return to home position, i.e., hundred
The position of Ye Wei rotations, to prevent accident.
The transmission device of the present invention can also use the supporting constructions such as hydraulic pump, electronic support or gas spring to realize.
Above content is to combine specific preferred embodiment further description made for the present invention, it is impossible to is assert
The embodiment of the present invention is only limitted to this, for general technical staff of the technical field of the invention, is not taking off
On the premise of from present inventive concept, some simple deduction or replace can also be made, should all be considered as belonging to the present invention by institute
Claims of submission determine scope of patent protection.
Claims (7)
- A kind of 1. building external sunshade control system, it is characterised in that：Including PLC (603) and multiple temperature and brightness Sensor (602)；Described multiple temperature and luminance sensor (602) are separately positioned on multiple sunshade lists of building (102) On first (100), sunshade unit (100) includes driving the transmission device (400) of folding type aluminum alloy framework unlatching, locking collapsible The stopping means and self-locking device (303) of aluminum alloy frame and the electro-motor of rotary shutter device (501) rotation of driving (502)；Described PLC (603) and temperature and luminance sensor (602), stopping means and self-locking device (303), biography Dynamic device (400) and electro-motor (502) wired or wireless connection；The aluminum alloy frame of described folding is by the first aluminum alloy frame Frame (302) and the be hinged composition of the second aluminum alloy frame (305)；Wherein the first aluminum alloy frame (302) one end is hinged on steel construction On framework (200), described transmission device (400) is horizontally installed on the first aluminum alloy frame (302) and steel structure frame (200) Hinged place；Second aluminum alloy frame (305) is slided by roller with the track (304) on steel structure frame (200) to be connected Connect, stopping means and self-locking device (303) are provided with track (304)；The transmission device (400) includes power transmission shaft (404) With hydraulic motor (403)；It is be hinged with the first aluminum alloy frame (302) in the middle part of described power transmission shaft (404), power transmission shaft (404) two End is equipped with lifting wheel (405), and lifting wheel (405) is connected with the mounting seat on steel structure frame (200), on lifting wheel (405) Steel wire rope (401) is wound with, the free end of steel wire rope (401) is connected with the roller of the second aluminum alloy frame (305)；Described liquid Pressure motor (403) is arranged on the middle part of power transmission shaft (404)；It is provided with torsion spring (402) on power transmission shaft (404), the two of torsion spring (402) Individual end is connected with steel structure frame (200) and power transmission shaft (404) respectively；PLC (603) is connected with touch-screen (601) Realize that parameter setting and data are shown.
- A kind of 2. building external sunshade control system according to claim 1, it is characterised in that：PLC (603) is logical Cross interchanger (605) to be connected with the distributed I/O unit (608) in sunshade unit (100), distributed I/O unit (608) and temperature And luminance sensor (602), stopping means and self-locking device (303), transmission device (400) and electro-motor (502) connection.
- A kind of 3. building external sunshade control system according to claim 2, it is characterised in that：Described interchanger (605) it is connected between distributed I/O unit by EthCAT buses (606).
- A kind of 4. building external sunshade control system according to claim 1, it is characterised in that：PLC (603) with Wireless distributed controller (703) is connected, and the first wireless module (701), brightness are provided with wireless distributed controller (703) Sensor (602), stopping means and self-locking device (303), transmission device (400) and electro-motor (502) pass through the second nothing Wire module is connected with the first wireless module (701).
- A kind of 5. control method of building external sunshade control system according to claim 1, it is characterised in that including with Lower step：Temperature and luminance sensor (602) gather the internal temperature and luminance signal of sunshade unit (100) in real time, feed back to PLC Controller (603)；PLC (603) compares the setting threshold values of real time temperature and luminance signal and temperature and luminance signal：If real time temperature and luminance signal are more than the second setting threshold values, PLC (603) control less than the first setting threshold values Electro-motor (502) drives rotary shutter device (501) Unscrew；Conversely, rotary shutter device (501) is then driven to close Close；If real time temperature and luminance signal are driven less than the second setting threshold values, PLC (603) control transmission device (400) Dynamic folding type aluminum alloy framework is opened, after stacked aluminum alloy frame is opened to the position of setting, PLC (603) control Stopping means and self-locking device (303) locking folding type aluminum alloy framework；Conversely, then drive stopping means and self-locking device (303) open, folding type aluminum alloy framework recovers closure.
- A kind of 6. control method of building external sunshade control system according to claim 5, it is characterised in that：Described The speed of transmission device (400) driving folding type aluminum alloy framework opened/closed is the 60mm/ seconds.
- A kind of 7. control method of building external sunshade control system according to claim 5, it is characterised in that：Rotatably When shutter device (501) rotates, folding type aluminum alloy framework is in the close position.
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| CN201610172050.7A CN105696899B (en) | 2016-03-23 | 2016-03-23 | A kind of building external sunshade control system and control method |
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| CN201610172050.7A CN105696899B (en) | 2016-03-23 | 2016-03-23 | A kind of building external sunshade control system and control method |
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| CN105696899B true CN105696899B (en) | 2018-01-30 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107013155B (en) * | 2017-05-23 | 2018-10-23 | 横琴畅享科技有限公司 | Curtain automatic rolls up system |
| CN110295834B (en) * | 2018-03-21 | 2021-01-26 | 广东袁义人防科技有限公司 | Hydraulic control automatic protective airtight door |
| CN111443677A (en) * | 2020-04-15 | 2020-07-24 | 上海核工程研究设计院有限公司 | Safety monitoring and comprehensive control system and operation method |
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| CN205445287U (en) * | 2016-03-23 | 2016-08-10 | 中联西北工程设计研究院有限公司 | Construct outside sunshade control system |
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| JPH06108764A (en) * | 1992-09-24 | 1994-04-19 | Matsushita Electric Works Ltd | Motor-driven rolled screen device for lighting window |
| KR20110100843A (en) * | 2010-03-05 | 2011-09-15 | 주식회사거암 | Structure including gallery window moved by electric motor |
| CN101963803A (en) * | 2010-09-09 | 2011-02-02 | 上海数字智能化***工程有限公司 | Intelligent building integrated system |
| CN203689121U (en) * | 2014-01-08 | 2014-07-02 | 温州市瓯海富顺家具制造厂 | PLC-based public bicycle shed monitoring system |
| CN204299440U (en) * | 2014-12-03 | 2015-04-29 | 仲恺农业工程学院 | Intelligent solar protection devices |
| CN105353779A (en) * | 2015-11-16 | 2016-02-24 | 盐城工学院 | Building horizontal external shading angle regulation and control system based on PLC |
| CN205445287U (en) * | 2016-03-23 | 2016-08-10 | 中联西北工程设计研究院有限公司 | Construct outside sunshade control system |
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| CN105696899A (en) | 2016-06-22 |
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