CN102931888A - Automatic control system with dual powers of greenhouse shutter rolling machine - Google Patents
Automatic control system with dual powers of greenhouse shutter rolling machine Download PDFInfo
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- CN102931888A CN102931888A CN2012101553281A CN201210155328A CN102931888A CN 102931888 A CN102931888 A CN 102931888A CN 2012101553281 A CN2012101553281 A CN 2012101553281A CN 201210155328 A CN201210155328 A CN 201210155328A CN 102931888 A CN102931888 A CN 102931888A
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Abstract
The invention discloses an automatic control system with dual powers of a greenhouse shutter rolling machine, which belongs to the technical field of control circuits. The automatic control system comprises a main circuit, a main control circuit, an auxiliary circuit and a signal indicating circuit, wherein a power supply of the main circuit adopts a three-phase power supply (380V) to drive a three-phase motor to work, and the main circuit is divided into a forward rotation (shutter rolling) part and a backward rotation (shutter releasing) part; a power supply of the main control circuit adopts alternating voltage of 220V to drive a contactor coil to work, and the main control circuit comprises an automatic control circuit (including a time control circuit and a temperature control circuit) and a manual control circuit and is also divided into a forward rotation (shutter rolling) control part and a backward rotation (shutter releasing) part; the auxiliary circuit is divided into a commonly-used circuit and a protection circuit, and adopts a power supply mode with the dual direct-current powers (DC 12V and DC 12V); and a power supply of the signal indicating (warning) circuit adopts the alternating voltage of 220V to drive an indicator light to work. Due to the successful application, the automatic control system can be used for rolling and releasing a shutter automatically on time according to a room temperature or according to the temperature in a greenhouse, can alleviate the labor intensity, save the time and reduce the expense, has the characteristics of flexibility, convenience, safety and reliability, and has important meanings on production protection, harvesting promotion, and implementation of agricultural modernization.
Description
One, affiliated technical field:
Belong to the control circuit technical field, relate to shutter duplicate supply automatic control system.
Two, background technology
Building a well-off society in an all-round way, carrying forward vigorously the new stage of modernization construction, building a New Socialist Countryside is the great historic task in China's modernization, has become in the agricultural and rural economy work one long-term and difficult task.Because rural area production efficiency is low, production structure is single, and the agricultural automation level is lower.Strengthen the agricultural automation construction, to the rural economy of prosperity the Northwest, promote the sustainable development of Agriculture and rural economy, promote implementing in full of agricultural automation etc. and all have far-reaching and significance.
In the past, because China (especially west area) rural area disperses, traffic falls behind, information is inaccessible, electricity shortage, and mechanization, electrification, automatization level are low, new technology, new method are used few, now, although this cultivating and growing technology of warmhouse booth obtains wideling popularize application, the application of automation equipment is also fewer, the insulation strqw cover in greenhouse generally is to roll up by manpower to put, labour intensity is large, and efficient is low, poor stability.
Automatic curtain is controlled by the time in the realization greenhouse, controls automatic air discharging by temperature, is to improve the agricultural automation level, promotes rural economy a kind of effective means quick, lasting, that develop healthily.
Three, summary of the invention
The objective of the invention is to disclose a kind of greenhouse duplicate supply shutter automatic control system.
Greenhouse Automaitc shade-rolling machine automatic control system comprises main circuit, governor circuit, auxiliary circuit and signal indicating circuit.
Main circuit power adopts (～380V) the driving threephase motor work of three-phase electrical source of power; Circuit is comprised of circuit breaker, contactor and thermal relay etc.
Main circuit is divided into forward (roller shutter) circuit and counter-rotating (putting curtain) circuit two parts, by two contactors, 3 pairs of main contactss separately three phase mains is connected stator winding with motor and presses positive phase sequence and be connected with negative-phase sequence, make motor can realize the operation of positive and negative both direction.
In the main circuit, circuit breaker is the control switch of power and other circuit power, and the size of circuit breaker should be selected according to actual conditions.Contactor also will be selected according to motor power (output), be with at least 2 pairs of normally closed interlocks (using 1 pair during circuit interlock, 1 pair for subsequent use).Thermal relay mainly is in order to protect motor, to prevent from damaging motor because overload causes motor overheating, needing to select according to actual.
The governor circuit power acquisition drives contactor coil work with alternating current 220V; Circuit is by circuit breaker, time switch, temperature detect switch (TDS), the compositions such as direct current relay.
Governor circuit comprises automatic control circuit and manual control circuit.Automatic control electric route time control circuit and temperature control circuit compose in parallel.Time control circuit is composed in series by time switch, two direct current relays, a contactor coil; Temperature control circuit is composed in series by temperature detect switch (TDS), three direct current relays, a contactor coil.Manual control circuit is composed in series by circuit breaker and contactor coil.
Automatic control circuit is divided into control forward (roller shutter) and control counter-rotating (putting curtain) two parts.
According to shutter different position and individual features thereof, set described time switch, temperature detect switch (TDS), direct current relay at the state of relevant position.By controlling respectively the switching electricity of two contactor coils, realize motor forward (or counter-rotating), namely carry out roller shutter (or putting curtain).
Manual control circuit also is divided into control forward and control counter-rotating two parts.Control forward (or counter-rotating) circuit is comprised of circuit breaker, relay, contactor, by controlling the switching electricity of described contactor coil, realizes the action of described contactor, finishes the forward (or counter-rotating) of motor, namely carries out roller shutter (or putting curtain).
The normally-closed contact of described first contactor is connected in the control circuit of second contactor, and the normally-closed contact of described second contactor is connected in the control circuit of first contactor, can form circuit interlock, prevents that short circuit from appearring in main circuit.
What time switch was selected to be accurate to minute gets final product.Should select during selective relay coil voltage safe voltage (≤36V) in, and contact is in (2-4 is to the best) more than two groups.
The governor circuit power supply is selected direct-current dual power (DC12V, DC24V), be because low pressure (≤36V) the AC power conversion element is larger, be difficult for buying and cost higher; And the small volume of DC power supply, easily purchase and cost are lower.
The DC12V relay uses normally opened contact in governor circuit, be in order to prevent that when the manual operation electric current flows backwards by automatic control circuit and causes time switch to damage or short circuit.The DC24V relay uses normally-closed contact in governor circuit, because protection (alarm) circuit is of little use, only move under special status, uses normally-closed contact can prolong the useful life of relay.
Auxiliary circuit is divided into common circuit and protective circuit, adopts direct-current dual power (DC12V and DC24V) supply power mode, and circuit is comprised of DC12V relay, DC24V relay, travel switch.
In common circuit, three travel switches are installed in respectively top, greenhouse shutter stop position (upper first), bottom, greenhouse shutter stop position (lower first), greenhouse tuyere position.The coil of three relays is connected with the normally-closed contact of three travel switches respectively; Above-mentioned three relays are connected in parallel on the DC12V both ends of power with described three travel switches respectively, form the loop.
In protective circuit, two travel switches (are gone up second) respectively at the top, greenhouse and the shutter protective position (lower second) of bottom, greenhouse in addition.The coil of relay K A3 is connected with the 4th travel switch normally-closed contact; The coil of relay K A4 is connected with the 5th travel switch normally-closed contact; KA3 and the 4th travel switch and KA4 and the 5th travel switch are connected in parallel on the DC24V both ends of power, form the loop.
Signal designation (alarm) circuit power adopts alternating current 220V to drive indicator light and buzzer work, respectively one group of normally-closed contact of two DC24V relays is connected with the indication green light, incorporates the master control power supply into; Its normally opened contact is in parallel, connects with indication red light and the buzzer of parallel connection again, incorporates the governor circuit power supply into.
Under normal circumstances, green light sends out a warning and goes out, when red light gives a green light when going out, and please timely check circuit.
The use of curtain-rolling machine for greenhouse automatic control system, not only solved the greenhouse on time automatic rolling, put the curtain problem, and can also reduce labour intensity, save time, cut down expenses.According to measuring and calculating, every greenhouse can be reduced expenses 3960 yuan every year, and whole garden can be reduced expenses nearly 1,200,000 yuan nearly 300 every year.The peasant household of planting greenhouse first not being planted experience realizes protecting and produces, short increasing income, and realizes that growth of agricultural efficiency is significant.
Four, description of drawings
Fig. 1 is curtain-rolling machine for greenhouse duplicate supply automatic control system circuit theory diagrams,
Wherein a is main circuit diagram, and b is governor circuit figure, and c is auxiliary common circuit figure, and d is auxiliary protection circuit figure, and e is signal designation (alarm) circuit diagram;
Fig. 2 is curtain-rolling machine for greenhouse duplicate supply automatic control system block diagram;
QF-circuit breaker, SK-time switch, SQ-travel switch, KA-relay, SM-temperature detect switch (TDS), KM-contactor, FR-thermal relay, U, V, W-three-phase power supply phase sequence, L-indicator light, FM-buzzer, M-threephase asynchronous among the figure.
Five, embodiment
The present invention is described in detail below in conjunction with embodiment and accompanying drawing.
Embodiment 1
Greenhouse Automaitc shade-rolling machine automatic control system comprises main circuit, governor circuit, auxiliary circuit and signal indicating circuit.
Main circuit (as shown in Figure 1a) power acquisition three-phase electrical source of power (～380V) drive threephase motor M to work; Circuit is comprised of a circuit breaker Q F, two contactor KM1, KM2 and a thermal relay FR.
Main circuit is divided into forward (roller shutter) circuit and counter-rotating (putting curtain) circuit two parts, 3 pairs of main contactss by contactor KM1 are connected three phase mains that stator winding is pressed positive phase sequence U, V, W connects with motor M, and 3 pairs of main contactss of contactor KM2 are connected stator winding to three phase mains by negative-phase sequence W, V, U connection with motor M, make motor M can realize the operation of positive and negative both direction.
Circuit breaker Q F is the control switch of power and other circuit power, and its size should be selected according to actual conditions.Because threephase asynchronous M power consumption is 1.5kw, other element total power consumption less (＜100W), so the circuit breaker Q F that this circuit is selected is the C32 type, namely the take-off electric current is 32 peaces.Contactor KM also will select according to motor M power, and its rated voltage is 380V, and rated current is 9A, and holding power is the CJX2-0910 type of 9W, and 2 of quantity are during for paraphase; For making things convenient for the access control circuit, the coil of contactor KM is selected alternating current 220V, have 2 pairs of normally closed interlocks (using 1 pair during circuit interlock, 1 pair for subsequent use) at least.Thermal relay FR mainly is in order to protect motor M, to prevent that motor M is overheated to be damaged because overload causes, and therefore selecting rated operational current is 20A, and the thermal element rated current is 5A, and the electric current adjustable range is the JR36-20 type of 3.2A-5A.
Governor circuit (shown in Fig. 1 b) power acquisition drives contactor KM work with alternating current 220V; By circuit breaker Q F1, QF2, QF3, time switch SK1, SK2, temperature detect switch (TDS) SM1, SM2, direct current 12V(DC12V) relay and direct current 24V(DC24V) the relay composition.
Governor circuit comprises automatic control circuit and manual control circuit.
Automatic control electric route time control circuit and temperature control circuit compose in parallel.Time control circuit is composed in series by the coil of time switch SK, DC12V and DC24V relay K A, contactor KM; Temperature control circuit is composed in series by the coil of temperature detect switch (TDS) SM, DC12V and DC24V relay K A, contactor KM.
Automatic control circuit is divided into control forward (roller shutter) and control counter-rotating (putting curtain) two parts.
Control prograde circuit by space-time switch S K1 and temperature detect switch (TDS) SM1 parallel connection after, be composed in series with the normally opened contact of DC12V relay K A1, the normally-closed contact of DC24V relay K A3, the normally-closed contact of contactor KM2, the coil of contactor KM1.According to shutter different position and individual features thereof, set time switch SK1, temperature detect switch (TDS) SM1, DC12V relay K A1 and DC24V relay K A3 at the state of relevant position, by the switching electricity of control contactor KM1 coil, realize the forward of motor, namely carry out roller shutter.
The control circuit for reversing is rear in parallel with space-time switch S K2 by temperature detect switch (TDS) SM2 and DC12V relay K A5 series connection, is composed in series with the normally opened contact of DC12V relay K A2, the normally-closed contact of DC24V relay K A4, the normally-closed contact of contactor KM1 and the coil of contactor KM2 again.According to shutter different position and individual features thereof, set time switch SK2, temperature detect switch (TDS) SM2, DC12V relay K A2, KA5 and DC24V relay K A4 at the state of relevant position, by the switching electricity of control contactor KM2 coil, realize the counter-rotating of motor, namely put curtain.
Manual control circuit is composed in series by circuit breaker Q F and contactor KM coil.
Manual control circuit also is divided into control forward and control counter-rotating two parts.
Control forward (or counter-rotating) circuit is by circuit breaker Q F2(or QF3), DC24V relay K A3(or KA4) normally-closed contact, contactor KM2(or KM1) normally-closed contact and contactor KM1(or KM2) coil connect, by control contactor KM1(or KM2) switching of coil electricity, the action of realization contactor, finish the forward (or counter-rotating) of motor M, namely carry out roller shutter (or putting curtain).
The normally-closed contact of contactor KM2 is connected in the control circuit of contactor KM1, and the normally-closed contact of contactor KM1 is connected in the control circuit of contactor KM2, can form circuit interlock, prevents that short circuit from appearring in main circuit.
Governor circuit should be noted when selecting components and parts:
It is just passable that time switch SK selects to be accurate to minute.Because travel switch SQ can accurately locate, need not select more accurate time switch SK; Shutter and cotton-wadded quilt are common agriculture apparatus in addition, and there is certain deviation in size own, and are subject to the impact of the factors such as weather, roller shutter speed is non-constant, be difficult to accurately control the position of shutter, cause roller shutter not in place or to put curtain not in place, have a strong impact on the precision of control system.
Should select during selective relay KA coil voltage safe voltage (≤36V) in, and contact is in (2-4 is to the best) more than two groups.Reason is that relay K A coil is to connect in circuit with travel switch SQ, the Determines of travel switch SQ the state of coil, and travel switch SQ is installed in the outside, greenhouse, long term exposure outside, the problems such as component wear, the water inlet of sleety weather element appear in often action unavoidably in addition.If the too high potential safety hazard that exists of voltage, so adopt dc low-voltage control relay KA.
DC12V relay K A selects 2 pairs of contacts in this circuit, and governor circuit uses 1 pair, 1 pair for subsequent use; DC24V relay K A selects 4 pairs of contacts, and governor circuit uses 1 pair, and signal indicating circuit uses 2 pairs, 1 pair for subsequent use.
Select direct-current dual power (DC12V, DC24V) in the governor circuit, be because low pressure (≤36V) the AC power conversion element is larger, be difficult for buying and cost higher; And the direct-current switch power supply small volume, easily purchase and cost are lower.Because the fragile all kinds of electronic components of agricultural district's voltage instability adopt same direct-current switch power supply to be each relay K A power supply, if Switching Power Supply is in case damage will affect system's normal operation.Adopt dual power supply, common circuit and protective circuit are separate, are independent of each other, and have improved the security of system unfailing performance.In this control system, the DC12V control circuit is the governor circuit common circuit, and the DC24V control circuit is the governor circuit protective circuit.
DC12V relay K A uses normally opened contact in governor circuit, be in order to prevent that when the manual operation electric current flows backwards by automatic control circuit and causes time switch SK to damage or short circuit.DC24V relay K A uses normally-closed contact in governor circuit, because protective circuit is of little use, only move under special status, uses normally-closed contact can prolong the useful life of relay K A.
Auxiliary circuit comprises common circuit (shown in Fig. 1 c) and protective circuit (shown in Fig. 1 d), adopts respectively DC power supply DC12V and DC24V supply power mode, and circuit is comprised of DC12V relay K A, DC24V relay K A, travel switch.
In common circuit (shown in Fig. 1 c), SQ1, SQ2, SQ5 are travel switch, SQ1 at top, greenhouse shutter stop position (upper first), SQ2 at bottom, greenhouse shutter stop position (lower first), SQ5 at the greenhouse tuyere position.Relay K A1 coil is connected with travel switch SQ1 normally-closed contact; Relay K A2 coil is connected with travel switch SQ2 normally-closed contact; Relay K A5 coil is connected with travel switch SQ5 normally-closed contact; Relay K A1 and travel switch SQ1, relay K A2 and travel switch SQ2, relay K A5 and travel switch SQ5 are connected in parallel on the DC12V both ends of power, form the loop.
In protective circuit (shown in Fig. 1 d), SQ3, SQ4 are travel switch, SQ3 at top, greenhouse shutter protective position (upper second), SQ4 in bottom, greenhouse shutter protective position (lower second).Relay K A3 coil is connected with travel switch SQ3 normally-closed contact; Relay K A4 coil is connected with travel switch SQ4 normally-closed contact; Relay K A3 and travel switch SQ3 and relay K A4 and travel switch SQ4 are connected in parallel on the DC24V both ends of power, form the loop.
Signal designation (or alarm) circuit (shown in Fig. 1 e), power acquisition drives indicator light L and buzzer FM work with alternating current 220V, and DC24V relay K A3, KA4 normally-closed contact are connected with indication green light L1, incorporate the master control power supply into; DC24V relay K A3 and KA4 normally opened contact are in parallel, connect with indication red light L2 and the buzzer FM of parallel connection again, incorporate the governor circuit power supply into.
Be that green light L1 is bright under normal circumstances, red light L2 goes out; And when the bright and/or buzzer FM sound of movement of red light L2, when green light L1 goes out, illustrate that Circuits System breaks down, in time check circuit is fixed a breakdown.
The automatic control circuit system operation programs is as described below:
The automatic control system ruuning situation in motor forward (roller shutter) stage is as described below:
Arrive when setting start-up time, time switch SK1 action is so that its normally opened contact SK1 is closed; Upper first travel switch SQ1 is normally closed, and relay K A1 moves so that normally opened contact is closed; Circuit is connected, contactor KM1 action, motor operation; Lower first travel switch SQ2 return.Arrive when setting the concluding time, time switch SK1 disconnects, and contactor KM1 resets, and motor stops.
When arriving on the design temperature, the greenhouse indoor temperature prescribes a time limit, temperature detect switch (TDS) SM1 is closed, and contactor KM1 is closed, the shutter forward, turn to travel switch SQ1 place, touch SQ1 and disconnect, relay K A1 outage, the contact disconnects, governor circuit is disconnected, contactor KM1 disconnects and cuts off main circuit, and motor forward (being roller shutter) stops, and the air port is opened.Travel switch SQ5 return, relay K A5 is closed.
If relay K A1 or travel switch SQ1 break down akinesia and can't cut off governor circuit, shutter continues forward and touches travel switch SQ3, make DC24V relay K A3 ON Action, the normally-closed contact action, governor circuit is disconnected, and green light L1 goes out, and red light L2 is bright and/or buzzer FM rings, main circuit is cut off, and motor forward (roller shutter) stops.
Should in time overhaul circuit when bright and/or buzzer FM rings as red light L2, fix a breakdown.
The automatic control system ruuning situation in motor counter-rotating (putting curtain) stage is as described below:
When arriving under the design temperature, the greenhouse indoor temperature prescribes a time limit, temperature detect switch (TDS) SM2 is closed, contactor KM2 is closed, and the shutter counter-rotating turns to travel switch SQ5 place, touching travel switch SQ5 contact disconnects, relay K A5 outage, the contact disconnects, and governor circuit is disconnected, motor counter-rotating (putting curtain) stops, and the air port is closed.Travel switch SQ5 disconnects, and relay K A5 resets.
Arrive to set and put curtain during the time, time switch SK2 action is so that its normally opened contact is closed; Lower first travel switch SQ2 is closed, and relay K A2 moves so that normally opened contact is closed; Circuit is connected, contactor KM2 action, motor operation.Upper first travel switch SQ1 return.
Arrive when setting stop position, shutter touches travel switch SQ2 and disconnects, relay K A2 outage, and the contact disconnects, and governor circuit is disconnected, and contactor KM2 disconnects, and cuts off main circuit, and motor counter-rotating (putting curtain) stops.
If hindering akinesia for some reason, relay K A2 or travel switch SQ2 can't cut off governor circuit, shutter continues counter-rotating and touches travel switch SQ4, make DC24V relay K A4 ON Action, the normally-closed contact action, governor circuit is disconnected, green light L1 goes out and red light L2 is bright and/or buzzer FM rings, and main circuit is cut off, and motor counter-rotating (putting curtain) stops.
Should in time overhaul circuit when bright and/or buzzer FM rings as red light L2, fix a breakdown.
The analog operation situation of manual state of a control:
When motor forward (roller shutter): close circuit breaker QF2, the shutter forward can stop according to actual needs at any time.When circuit breaker Q F1 is closed, manually control the shutter forward and touch travel switch SQ3, make DC24V relay K A3 ON Action, signal designation (alarm) circuit is connected, and wants timely cut-off breaker QF2 when bright and/or buzzer FM rings as red light L2.
When motor counter-rotating (putting curtain): close circuit breaker QF3, the shutter counter-rotating can stop according to actual needs at any time.When circuit breaker Q F1 is closed, manually control the shutter counter-rotating and touch travel switch SQ4, make DC24V relay K A4 ON Action, signal designation (alarm) circuit is connected, and wants timely cut-off breaker QF3 when bright and/or buzzer FM rings as red light L2.
The above only is preferred implementation of the present invention; should be pointed out that for those skilled in the art, under the prerequisite that does not break away from the technology of the present invention principle; can also make some improvement and modification, these improve and modification also should be considered as protection scope of the present invention.
Claims (6)
1. curtain-rolling machine for greenhouse duplicate supply automatic control system, comprise main circuit, governor circuit, auxiliary circuit and signal indicating circuit, it is characterized in that main circuit power adopts three-phase 380V electrical source of power to drive threephase motor work, formed by circuit breaker, contactor and thermal relay, by contactor three phase mains being connected stator winding with motor presses positive phase sequence and is connected with negative-phase sequence, make motor can realize the operation of positive and negative both direction, realize that forward is the effect that curtain is namely put in roller shutter and counter-rotating; The governor circuit power acquisition drives contactor coil work with alternating current 220V, by circuit breaker, time switch, temperature detect switch (TDS), direct current relay forms, and comprises automatic control circuit and manual control circuit, and automatic control electric route time control circuit and temperature control circuit compose in parallel, manual control circuit is comprised of circuit breaker, relay and contactor, and they also are divided into the control forward is that curtain two parts are namely put in roller shutter and control counter-rotating; Auxiliary circuit is divided into common circuit and protective circuit, adopts direct-current dual power DC12V and DC24V supply power mode, is comprised of DC12V relay, DC24V relay, travel switch; Signal designation or warning circuit adopt alternating current 220V power drives indicator light and buzzer work, respectively the normally-closed contact of two DC24V relays to be connected with the indication green light, its normally opened contact is in parallel, connects with indication red light and the buzzer of parallel connection again, incorporates respectively the governor circuit power supply into.
2. curtain-rolling machine for greenhouse duplicate supply automatic control system according to claim 1 is characterized in that in the main circuit, and circuit breaker is the control switch of power and other circuit power, and its size should be selected according to actual conditions; Contactor also will be selected according to motor power (output), be with at least 2 pairs of normally closed interlocks; Thermal relay mainly is in order to protect motor, to prevent from damaging motor because overload causes motor overheating, needing to select according to actual.
3. curtain-rolling machine for greenhouse duplicate supply automatic control system according to claim 1 is characterized in that time control circuit is composed in series by time switch, direct current relay, contactor coil; Temperature control circuit is composed in series by temperature detect switch (TDS), direct current relay, contactor coil; According to shutter different position and individual features thereof, set respectively described time switch, temperature detect switch (TDS), direct current relay at the state of relevant position; By controlling the power on/off of described contactor coil, realize the motor forward or reverse, namely carry out roller shutter or put curtain.
4. curtain-rolling machine for greenhouse duplicate supply automatic control system according to claim 1, it is characterized in that in the common circuit of auxiliary circuit, three travel switches respectively at the top, greenhouse, the shutter stop position in bottom, greenhouse and air port, greenhouse, the coil of three relays is connected with the normally-closed contact of three travel switches respectively; They are connected in parallel on respectively the DC12V both ends of power, form the loop; In protective circuit, two travel switches are respectively in the shutter protective position of top, greenhouse and bottom, greenhouse in addition, and two relay coils are connected with the normally opened contact of these two travel switches respectively, and they are connected in parallel on respectively the DC24V both ends of power again, form the loop.
5. curtain-rolling machine for greenhouse duplicate supply automatic control system according to claim 1 is characterized in that respectively one group of normally-closed contact of two DC24V relays being connected with the indication green light in signal designation or the warning circuit, incorporates the governor circuit power supply into; Its normally opened contact is in parallel, connects with indication red light and the buzzer of parallel connection again, incorporates the governor circuit power supply into.
6. according to claim 1 or 3 described curtain-rolling machine for greenhouse duplicate supply automatic control systems, it is characterized in that manually controlling the forward or reverse circuit is comprised of circuit breaker, relay, by controlling the switching electricity of described contactor coil, realize the action of described contactor, finish the forward or reverse of motor, namely carry out roller shutter or put curtain.
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| CN2012101553281A CN102931888A (en) | 2012-05-18 | 2012-05-18 | Automatic control system with dual powers of greenhouse shutter rolling machine |
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| CN2012101553281A CN102931888A (en) | 2012-05-18 | 2012-05-18 | Automatic control system with dual powers of greenhouse shutter rolling machine |
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| CN103420273A (en) * | 2013-07-26 | 2013-12-04 | 许宾 | Alarm signal conversion device |
| CN104065305A (en) * | 2014-06-06 | 2014-09-24 | 黄智� | Roller shutter lifting circuit used for greenhouse |
| CN107060624A (en) * | 2017-04-25 | 2017-08-18 | 张家港市骏马钢帘线有限公司 | A kind of automatic curtain accelerator control system |
| CN111684961A (en) * | 2020-06-23 | 2020-09-22 | 温州大学 | Greenhouse multi-mode intelligent control system |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103414161A (en) * | 2013-07-15 | 2013-11-27 | 国家电网公司 | Motor forward/reverse rotation protection device |
| CN103420273A (en) * | 2013-07-26 | 2013-12-04 | 许宾 | Alarm signal conversion device |
| CN103420273B (en) * | 2013-07-26 | 2015-11-25 | 许宾 | alarm signal conversion device |
| CN104065305A (en) * | 2014-06-06 | 2014-09-24 | 黄智� | Roller shutter lifting circuit used for greenhouse |
| CN104065305B (en) * | 2014-06-06 | 2016-09-21 | 黄智� | A kind of roller shutter for warmhouse booth lifts circuit |
| CN107060624A (en) * | 2017-04-25 | 2017-08-18 | 张家港市骏马钢帘线有限公司 | A kind of automatic curtain accelerator control system |
| CN111684961A (en) * | 2020-06-23 | 2020-09-22 | 温州大学 | Greenhouse multi-mode intelligent control system |
| CN111684961B (en) * | 2020-06-23 | 2023-03-21 | 温州大学 | Greenhouse multi-mode intelligent control system |
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Application publication date: 20130213 |