CN102236346A - RS485 bus-based grain depot natural ventilation control system - Google Patents
RS485 bus-based grain depot natural ventilation control system Download PDFInfo
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- CN102236346A CN102236346A CN2010101625543A CN201010162554A CN102236346A CN 102236346 A CN102236346 A CN 102236346A CN 2010101625543 A CN2010101625543 A CN 2010101625543A CN 201010162554 A CN201010162554 A CN 201010162554A CN 102236346 A CN102236346 A CN 102236346A
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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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P90/00—Enabling technologies with a potential contribution to greenhouse gas [GHG] emissions mitigation
- Y02P90/02—Total factory control, e.g. smart factories, flexible manufacturing systems [FMS] or integrated manufacturing systems [IMS]
Abstract
The invention relates to an RS485 bus-based grain depot natural ventilation control system, comprising a touch screen, an RS485 bus, PLCs (Programmable Logic Controllers), a temperature humidity sensor, ventilation transom windows and position sensors. Each grain depot is internally provided with one PLC, each PLC is taken as a slave station of the RS485 bus, used for detecting signals fed back by the position sensor of each ventilation transom window and controlling a motor of each ventilation transom window to rotate forward and reversely, the touch screen is arranged in the a central control chamber and is taken as a main station, the touch screen main station is connected with the PLC slave station of each grain depot by virtue of the RS485 bus, touch screen configuration software is composed of a plurality of control frames and a plurality of parameter setting frames, each grain depot correspondingly has one control frame and one parameter setting frame, the control frame digitally displays temperature and humidity in a depot region in real time, displays manual opening and closing buttons corresponding to the grain depot, an animation of variation of positions of the ventilation transom windows and starting and stopping buttons for automatic control, and the parameter setting frame can be used for setting different temperature and humidity parameters according to types of stored grains so as to be convenient for automatically controlling a ventilation operation under an automatic mode.
Description
Technical field
The present invention relates to a kind of grain storage utility appliance, particularly relate to a kind of grain depot natural ventilation control system based on the RS485 bus.
Background technology
Grain reserves are being safeguarded grain market and social stability, protection peasant benefit, are being guaranteed to have born in the national security substantial responsibility as national important strategic goods and materials.The Chinese government grabs the grain reserves management always as an important economic work.Since 1998, state revenue drops into national debt fund in three batches continuously, has built state grain depot.Present stage China's grain reserves storage facilities condition is greatly improved, and stored grain are kept in the good warehouse of condition basically, and quantity, the quality of stored grain are progressively reliably guaranteed.At present grain storage directly under in the storehouse, the grain storage technical merit obviously improves, and has also carried out technological transformation on hardware, storage and affiliated facility are greatly improved.Grain stock check result showed in recent years, and the stored grain quality condition has reached better level, provided safer, high-quality, green grain source to market.Meanwhile, the cost direct relation state revenue and expenditure cost burden of stored grain will reduce handling cost in the grain storage process, guarantee preservation and increment of the value of state assets.Strengthen employee quality, strengthen the stored grain handling facility, improve the stored grain management level and the quality of storing up grain and then seem particularly important.Worm, the harm of mould, mouse are the most serious in the grain storage process.Storage pest causes the heating of grain heap, even goes mouldy, even the embryo of the grain seed of damaging by worms, and can not normally germinate, and causes serious economy loss.Its loss also causes the reduction of loss of grain nutritive value and sanitary condition except grain quality, the influence mankind's is healthy.In order to improve foodstuff preservation stability, reduce mass loss, delay aging, make green relieved grain engineering, need to detect the indexs such as temperature, appropriateness of grain, and accomplish timely management, ventilating according to testing result and the outer weather of grain depot in real time is a kind of comparatively common management method.
At present, the ventilation of grain depot has mechanical ventilation and natural ventilation system, and wherein natural ventilation is adopted manually and the electronic ventilation transom window of opening.There is more shortcoming in this mode, and the reservoir area grain depot has a very wide distribution, and the accurate grain depot of every coordinate is tens ventilation transom windows nearly, managerial personnel's labour intensity is big during opening and closing, and length consuming time is difficult to during abrupt change of climate react fast, judgement to outside weather relies on artificial realization, and reliability is low.Present this ventilating system mode has: (1) indoor opening type.Deng the storage of the grain in warehouse full after, stepping on grain and opening vent window, bring the big shortcoming of intensity, must be simultaneously after the grain storage is full, just can realize; (2) outdoor opening type.Open the ventilation transom window one by one from the outside by linkage assembly, worm-and-wheel gear, present domestic most grain depots adopt this mode; (3) electric drive-type.This mode mainly is to replace manually having reduced managerial personnel's labour intensity by motor, but managerial personnel need arrive the ventilation transom window position operation of every grain depot, and it is loaded down with trivial details to work, and length consuming time has the small part grain depot to adopt this mode to ventilate at present.
Summary of the invention
For addressing the above problem, the invention provides a kind of a kind of efficient, safe grain depot natural ventilation control system that provides based on the RS485 bus based on RS485 bus grain depot natural ventilation control system.
Grain depot natural ventilation control system based on the RS485 bus of the present invention, comprise touch-screen, the RS485 bus, PLC, Temperature Humidity Sensor, the ventilation transom window, position transducer, be provided with 1 PLC in described every grain depot, each PLC is all as the slave station of RS485 bus, the motor that detects the signal of the transom window position sensor feedback of respectively ventilating and control ventilation transom window just, counter-rotating, described touch-screen is arranged in the central control room and as main website, described touch-screen main website is connected with the PLC slave station of each grain depot by the RS485 bus, the touch-screen configuration software is provided with picture by some pages of control pictures and parameter and forms, every grain depot is provided with picture to one page control picture and one page parameter should be arranged, control picture real time digital shows the reservoir area temperature, humidity, show manually opening of the corresponding grain depot of control, close the animation of button and ventilation transom window change in location and opening of controlling automatically, stop button, parameter is provided with picture can set different temperature according to the kind that stores grain, humidity parameter is so that automatic mode is controlled ventilation operation down automatically.
Grain depot natural ventilation control system based on the RS485 bus of the present invention, described ventilation transom window comprises the installation base plate, drive rotating shaft, the motion forms, fixed window frame, drive link and driving pull bar, described installation base plate is fixed on the metope, the side that base plate is installed is provided with motor, one side of motor is connected with worm-and-wheel gear, one side of worm-and-wheel gear is provided with the position detecting device of the switching angle that is used for detecting forms, motor-driven drives rotating shaft and rotates, the two ends that drive rotating shaft are fixed by bearing spider and installation base plate, described motion forms link to each other by hinge with fixed window frame, described drive link and an end and described driving rotating shaft hinged, the top of drive link and described driving pull bar are hinged.
The beneficial effect that the present invention is based on the grain depot natural ventilation control system of RS485 bus is: (1) grain depot natural ventilation control system has manually, automatic operation mode, move convenient and reliable, the automaticity height; (2) on the touch-screen of central control room, arbitrary vent window of arbitrary grain depot is 0-90 ° of scope opening and closing in the crawl control reservoir area, the open and close of all grain depot vent windows of control reservoir area, the sense of rotation of vent window and position animation display on touch-screen; (3) digital temperature, humidity sensor detect the reservoir area temperature automatically, humidity changes, and are presented in real time on the touch-screen by the RS485 bus, are convenient to the Central Control Room managerial personnel and understand the reservoir area climate change scenario in real time; (4) by touch-screen to different grain varieties, set different temperature, humidity ventilation condition, each grain depot is eaten kind according to the outer temperature in the storehouse of monitoring, wet result and institute's grain storage and is opened and closed automatically natural ventilation system.
The present invention is based on sensing detection technology, bus control technology, human machine interface technologies etc. and realize the automatic control of grain depot natural ventilation, have that working strength is low, efficient is high, automaticity is high, the reliability advantages of higher, for grain storage provides a kind of high performance ventilating system, have and use widely and promotional value.
Description of drawings
Fig. 1 the present invention is based on the grain depot natural ventilation control system storehouse vent window structural representation of RS485 bus;
Fig. 2 is the intelligence control system theory diagram that the present invention is based on the grain depot natural ventilation control system of RS485 bus;
Fig. 3 is the control procedure process flow diagram that the present invention is based on the grain depot natural ventilation control system of RS485 bus.
Embodiment
Below in conjunction with Figure of description the grain depot natural ventilation control system that the present invention is based on the RS485 bus is described further.
Referring to shown in Figure 1, the present invention is based on the grain depot natural ventilation control system of RS485 bus, the ventilation transom window comprises installs base plate 9, drive rotating shaft 8, motion forms 3, fixed window frame 2, drive link 5 and driving pull bar 4, described installation base plate 9 is fixed on the metope 1, the side that base plate 9 is installed is provided with motor 12, one side of motor 12 is connected with worm-and-wheel gear 10, worm-and-wheel gear 10 is used for changing the motor vertical direction and rotates to be horizontal rotational shaft, vent window energy self-locking during the motor dead electricity, one side of worm-and-wheel gear 10 is provided with the position detecting device 11 of the switching angle that is used for detecting forms, motor 12 drives rotating shaft 8 and rotates, the two ends that drive rotating shaft 8 are fixing with installation base plate 9 by bearing spider 6, described motion forms 3 and fixed window frame 2 link to each other by hinge, described drive link 5 and an end and described driving rotating shaft 8 hinged, the top of drive link 5 and described driving pull bar 4 are hinged.
Referring to shown in Figure 2,, constitute by PLC control module, temperature, humidity detecting module, touch-screen, drive motor etc. for grain depot natural ventilation control system theory diagram.The ventilation transom window of every grain depot is realized control by 1 cover control system, each control system gives different station numbers, during at certain storehouse ventilation operation, selects the control page of this storehouse correspondence in the touch-screen main website, the steering order of sending is sent to PLC by the RS485 bus, finishes ventilation operation.
Referring to Fig. 3, ventilating system enters running status, reservoir area temperature, humidity sensor automatic detection signal, testing result is with the output of RS485 numeral, and on the touch-screen of central control room, show, according to the ventilation condition of setting, under automatic mode, whether procedure judges opens vent window ventilates simultaneously.Outdoor conditions satisfies ventilation condition, then opens or close vent window, does not satisfy ventilation condition, does not then open or close vent window; Under manual mode, operating personnel can manually control the keying of each fan pass air regulator in the reservoir area arbitrarily.During ventilation, motor 12 drives worm-and-wheel gear and drives rotating shaft 8 pulling drive link 5 and pull bars 4 among Fig. 1, realizes that vent window is opened into horizontal level by the upright position, arrives horizontal level and stops, and realizes ventilating.In the ventilation process, temperature, humidity sensor are monitored in real time, when not satisfying ventilation condition, then close automatically immediately under vent window or the manual mode and close to the upright position by Central Control Room touch-screen Long-distance Control vent window by horizontal level, arrive upright position phase down operation by managerial personnel.
This ventilating system, can detect the weather conditions of reservoir area in real time, to realize manually and automatically controlling of grain depot natural ventilation system, grain depot management level and automaticity have been improved, reduced managerial personnel's labour intensity, save human resources, improved the economic benefit of grain depot, also guaranteed the safety of State Grain Reserve Administration strategic materials.
Above embodiment is described preferred implementation of the present invention; be not that scope of the present invention is limited; design under the prerequisite of spirit not breaking away from the present invention; various distortion and improvement that the common engineering technical personnel in this area make technical scheme of the present invention all should fall in the definite protection domain of claims of the present invention.
Claims (2)
1. grain depot natural ventilation control system based on the RS485 bus, it is characterized in that: comprise touch-screen, the RS485 bus, PLC, Temperature Humidity Sensor, the ventilation transom window, position transducer, be provided with 1 PLC in described every grain depot, each PLC is all as the slave station of RS485 bus, the motor that detects the signal of the transom window position sensor feedback of respectively ventilating and control ventilation transom window just, counter-rotating, described touch-screen is arranged in the central control room and as main website, described touch-screen main website is connected with the PLC slave station of each grain depot by the RS485 bus, the touch-screen configuration software is provided with picture by some pages of control pictures and parameter and forms, every grain depot is provided with picture to one page control picture and one page parameter should be arranged, control picture real time digital shows the reservoir area temperature, humidity, show manually opening of the corresponding grain depot of control, close the animation of button and ventilation transom window change in location and opening of controlling automatically, stop button, parameter is provided with picture can set different temperature according to the kind that stores grain, humidity parameter is so that automatic mode is controlled ventilation operation down automatically.
2. the grain depot natural ventilation control system based on the RS485 bus according to claim 1, it is characterized in that: described ventilation transom window comprises the installation base plate, drive rotating shaft, the motion forms, fixed window frame, drive link and driving pull bar, described installation base plate is fixed on the metope, the side that base plate is installed is provided with motor, one side of motor is connected with worm-and-wheel gear, one side of worm-and-wheel gear is provided with the position detecting device of the switching angle that is used for detecting forms, motor-driven drives rotating shaft and rotates, the two ends that drive rotating shaft are fixed by bearing spider and installation base plate, described motion forms link to each other by hinge with fixed window frame, described drive link and an end and described driving rotating shaft hinged, the top of drive link and described driving pull bar are hinged.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010101625543A CN102236346A (en) | 2010-05-05 | 2010-05-05 | RS485 bus-based grain depot natural ventilation control system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010101625543A CN102236346A (en) | 2010-05-05 | 2010-05-05 | RS485 bus-based grain depot natural ventilation control system |
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| CN102236346A true CN102236346A (en) | 2011-11-09 |
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| CN2010101625543A Pending CN102236346A (en) | 2010-05-05 | 2010-05-05 | RS485 bus-based grain depot natural ventilation control system |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102722131A (en) * | 2012-05-08 | 2012-10-10 | 天津索龙电子科技有限公司 | Touch screen PLC controller based on bus form |
| CN102768523A (en) * | 2012-08-02 | 2012-11-07 | 河南工业大学 | Intelligent ventilating system of barn and control method thereof |
| CN103576727A (en) * | 2013-11-20 | 2014-02-12 | 哈尔滨工程大学 | Device for measuring and monitoring temperature and humidity of granary |
Citations (5)
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| EP0238979A2 (en) * | 1986-03-25 | 1987-09-30 | Siemens Aktiengesellschaft | Temperature and humidity control arrangement |
| CN2412992Y (en) * | 1998-12-16 | 2001-01-03 | 南通粮食机械总厂 | Rocker type air-tight window |
| CN101231021A (en) * | 2008-02-13 | 2008-07-30 | 袁宣贵 | Humiture automatic control device and method |
| CN201138454Y (en) * | 2008-01-04 | 2008-10-22 | 沈翠凤 | Automatic controlling apparatus for measuring temperature, humidity of grain and ventilating the same |
| CN101592501A (en) * | 2008-05-28 | 2009-12-02 | 上海良友（集团）有限公司 | Temperature and humidity display of grain warehouse |
-
2010
- 2010-05-05 CN CN2010101625543A patent/CN102236346A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0238979A2 (en) * | 1986-03-25 | 1987-09-30 | Siemens Aktiengesellschaft | Temperature and humidity control arrangement |
| CN2412992Y (en) * | 1998-12-16 | 2001-01-03 | 南通粮食机械总厂 | Rocker type air-tight window |
| CN201138454Y (en) * | 2008-01-04 | 2008-10-22 | 沈翠凤 | Automatic controlling apparatus for measuring temperature, humidity of grain and ventilating the same |
| CN101231021A (en) * | 2008-02-13 | 2008-07-30 | 袁宣贵 | Humiture automatic control device and method |
| CN101592501A (en) * | 2008-05-28 | 2009-12-02 | 上海良友（集团）有限公司 | Temperature and humidity display of grain warehouse |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102722131A (en) * | 2012-05-08 | 2012-10-10 | 天津索龙电子科技有限公司 | Touch screen PLC controller based on bus form |
| CN102768523A (en) * | 2012-08-02 | 2012-11-07 | 河南工业大学 | Intelligent ventilating system of barn and control method thereof |
| CN102768523B (en) * | 2012-08-02 | 2014-08-06 | 武汉理工大学 | Intelligent ventilating system of barn and control method thereof |
| CN103576727A (en) * | 2013-11-20 | 2014-02-12 | 哈尔滨工程大学 | Device for measuring and monitoring temperature and humidity of granary |
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Application publication date: 20111109 |