KR20200068218A - Driver for smart farm integrated with motor for opening and closing the vent of greenhouse - Google Patents

Abstract

The present invention relates to a motor-integrated actuator for opening and closing a ventilation window of a greenhouse for a smart farm. According to the present invention, the motor-integrated actuator for opening and closing a ventilation window of a greenhouse for a smart farm comprises: a motor which is installed on one side of a guide roller on a track for vertical or left/right movements of a motor, and provides power for opening and closing a ventilation window of a greenhouse; a transformer which is installed in proximity to the motor, and receives an AC voltage from the outside to convert the AC voltage into an AC 24V voltage to supply the AC 24V voltage; a rectifying circuit unit to receive the AC 24V voltage from the transformer to rectify the AC 24V voltage into DC 24V to supply DC 24V; a switching unit to supply the DC 24V voltage rectified by the rectifying circuit unit to the motor, and change the positive (+) and negative (-) polarities of the DC 24V voltage supplied to the motor to rotate the motor forwards or backwards; and a control unit to control a switching operation of the switching unit, receive rotating displacement of the motor to transmit a control signal for precise control of the motor to the switching unit, receive a motor control signal from an external device to reflect the motor control signal in motor control, and transmit opening or closing degree information of the ventilation window to the external device. According to the present invention, the motor can be wirelessly controlled without installing a separate cable for motor control, and a greenhouse environment can be controlled in an optimal state by precisely controlling the motor by motor operation feedback using an encoder.

Description

Driver for smart farm integrated with motor for opening and closing the vent of greenhouse}

The present invention relates to a driver for opening and closing a greenhouse ventilation window for a smart farm, and more specifically, by integrating a driver system in a motor for opening and closing a greenhouse ventilation window, the installation of a separate driver system can be omitted, and a wireless communication function is provided in the driver system. It relates to a motor-integrated greenhouse ventilation window opening and closing driver for a smart farm that can control the motor wirelessly.

Vinyl house is a kind of plastic greenhouse that allows various crops to be grown inside a closed space covered with vinyl regardless of the natural environment (weather conditions). It is essential for such a greenhouse to control and maintain moisture and temperature suitable for the type of crop.

In the greenhouse, the internal temperature rises due to sunlight penetration during the day with good weather conditions. In order to prevent the internal temperature of the vinyl house from rising excessively, a plastic or heat insulating cover is opened. Due to the descent, the crops are grown while keeping the cover covered with vinyl or heat. At this time, if there is no safety concern about snow or rain, such as sunscreen and thermal insulation cover, which do not have the possibility of rain, an AC deceleration motor is used to open and close such a facility. If there is, use an electrically safe 24V DC reduction motor.

The DC reduction motor has the advantage of excellent safety against electric shock, short circuit, etc., and it is easy to change direction by switching the polarity with only two power lines. However, the DC deceleration motor has a drawback that the voltage flowing due to the intrinsic resistance of the wiring is large when the current consumption is the same when compared to the AC deceleration motor. Therefore, the DC reduction motor is difficult to maintain a constant rotational speed depending on the length or load of the wiring, and is influenced by the specifications of the rectifier for DC voltage supply or the transformer for step-down.

On the other hand, in Korean Patent Publication No. 10-2015-0109558 (Patent Document 1), "the ventilation window opening and closing device of the greenhouse" is disclosed. Accordingly, the ventilation window opening and closing device of the greenhouse includes a frame; Is installed on the frame, the first gear for linearly moving one rack gear by rotating the gear shaft in one direction; A second gear installed on the frame and the gear shaft rotating in the opposite direction to the first gear to linearly move another rack gear adjacent to the rack gear; It is installed between the first gear and the second gear to transmit rotational force from the first gear to the second gear, and comprises a reverse rotation power transmission means for rotating the second gear in a direction opposite to the rotation direction of the first gear. It is characterized by being.

In the case of patent document 1 as described above, it is possible to open and close a plurality of ventilation windows for a greenhouse with an opening and closing device using one power means, thereby reducing the installation space, reducing the load, and reducing the installation cost. I don't know, but the motor used as a power means is based on a motor that receives DC 24V, so the voltage drop is large, and accordingly it has a problem that it is difficult to obtain a constant rotational speed.

Korean Patent Application Publication No. 10-2015-0109558 (published on October 2, 2015)

The present invention was created in consideration of the problems of the prior art as described above, and by integrating a driver system in a motor for opening and closing a greenhouse ventilation window, a separate driver system is not required, thereby reducing the cost of system facilities of a smart farm, By establishing a wireless communication function in the driver system, the motor can be controlled wirelessly without the installation of a separate cable for motor control, and the motor is controlled by feedback using the encoder to control the greenhouse environment optimally. An object of the present invention is to provide a motor-integrated greenhouse ventilation window opening and closing driver for a smart farm.

In order to achieve the above object, a motor-integrated greenhouse ventilation window opening and closing driver for a smart farm according to the present invention,

A motor provided on one side of a guide roller on a track for moving up and down or left and right of a motor, and providing power for opening and closing a ventilation window of a greenhouse;

A transformer installed close to the motor and receiving an AC voltage from the outside to convert it into an AC 24V voltage and supply it;

A rectifying circuit unit receiving the AC 24V voltage from the transformer and rectifying and supplying DC 24V;

A switching unit that supplies the DC 24V voltage rectified by the rectifying circuit unit to the motor, and changes the polarity (+) and negative (-) polarities of the DC 24V voltage supplied to the motor such that the motor rotates forward or reverse; And

Controls the switching operation of the switching unit, receives the rotational displacement of the motor, sends a control signal for precise control of the motor to the switching unit, receives a motor control signal from an external device, reflects it in the motor control, and opens a ventilation window or It has a feature in that it includes a control unit that transmits the closing degree information to an external device.

Here, preferably, an encoder for detecting a rotational displacement of the motor and transmitting feedback to the control unit may be further installed in the motor.

Further, in the motor, when the motor moves up and down or left and right on a track through a guide roller, a limiter for limiting a range of up and down or left and right movement may be further installed.

In addition, the switching unit may be composed of two C contact relays.

In addition, the control unit is stably supplied with power to the control unit to prevent the operation of the control unit from being stopped due to the instantaneous voltage drop due to the flow of the starting current greater than the current during normal operation when the motor starts. A charging circuit may be further provided to enable operation.

In addition, the control unit may further include a wireless communication module for wirelessly receiving a motor control signal from an external device and wirelessly transmitting the degree of opening or closing of the ventilation window to the external device.

According to the present invention, a separate drive system is not required by integrating a drive system into a motor for opening and closing a greenhouse ventilation window, thereby reducing the cost of a smart farm system and controlling the motor by establishing a wireless communication function in the drive system. The motor can be controlled wirelessly without the installation of a separate cable for, and there is an advantage that the greenhouse environment can be optimally controlled by precisely controlling the motor by feedback of the motor operation using an encoder.

1 is a view schematically showing a system configuration of a motor-integrated greenhouse ventilation window opening and closing driver for a smart farm according to the present invention.
2 is a view showing an example of a motor employed in a driver for opening and closing a greenhouse ventilation window for a smart farm motor according to the present invention.
FIG. 3 is a view showing a state in which a driver for opening and closing a greenhouse ventilation window for a smart farm according to the present invention is installed on a guide roller.
4 is a view showing an example of a transformer employed in a motor-integrated greenhouse ventilation window opening and closing driver for a smart farm according to the present invention.
5 is a view showing an example of an encoder employed in a motor-integrated greenhouse ventilation window opening and closing driver for a smart farm according to the present invention.

The terms or words used in the present specification and claims should not be interpreted as being limited to a conventional or lexical meaning, and the inventor can appropriately define the concept of terms to describe his or her invention in the best way. Based on the principles, it should be interpreted as meanings and concepts consistent with the technical spirit of the present invention.

Throughout the specification, when a part “includes” a certain component, this means that other components may be further included rather than excluding other components unless specifically stated to the contrary. In addition, terms such as “…unit”, “…group”, “module”, and “device” described in the specification mean a unit that processes at least one function or operation, which is hardware or software or a combination of hardware and software. Can be implemented as

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings.

1 is a diagram schematically showing a system configuration of a motor-integrated greenhouse ventilation window opening and closing driver for a smart farm according to an embodiment of the present invention.

Referring to FIG. 1, a motor-integrated greenhouse ventilation window opening/closing actuator 100 for a smart farm according to the present invention is installed on one side of a frame of a greenhouse (or vinyl house) to open and close the ventilation window of the greenhouse (or vinyl house).

The driver 100 for opening and closing a motor-integrated greenhouse ventilation window for the smart farm of the present invention as described above is configured to include a motor 110, a transformer 120, a rectifying circuit unit 130, a switching unit 140, and a control unit 150. .

The motor 110 is installed on one side of the guide roller 320 on the track 310 (refer to FIG. 3), which forms part of the frame of the greenhouse (or vinyl house), for vertical and horizontal movement of the motor, and a ventilation window of the greenhouse It provides power to open and close (not shown). Here, as the motor 110, a DC 24V low-speed motor as shown in FIG. 2 may be used. Here, an encoder 160 (see FIG. 5) is further installed in the motor 110 as described above to detect the rotational displacement of the motor (operation of the motor) and transmit feedback to the control unit 150 to be described later. Can be. In addition, in the motor 110, the motor 110 moves up and down or left and right on the track 310 through the guide roller 320, a limiter 170 for limiting the up and down or left and right movement range ( 2, 3) may be further installed.

The transformer 120 is installed close to the motor 110, receives AC voltage from the outside, converts it into AC 24V voltage, and supplies it. Here, as shown in FIG. 4, as the transformer 120, a transformer that receives an AC 380V or 440V voltage as a primary input voltage and outputs an AC 24V voltage as a secondary output voltage may be used. However, it is not limited to such a transformer, and a transformer that receives an AC 220V or 110V voltage and outputs an AC 24V voltage may be used. Here, also, as the transformer 120 receives AC 380V or 440V, or 220V AC voltage through a wire (cable), the voltage drop can be significantly reduced compared to receiving DC power in a conventional method through a wire. There will be.

The rectifier circuit 130 receives the AC 24V voltage from the transformer 120 and rectifies and supplies the DC 24V. The rectifying circuit 130 may be configured as a bridge diode.

The switching unit 140 supplies the DC 24V voltage rectified by the rectifying circuit unit 130 to the motor 110, but the DC 24V voltage supplied to the motor 110 so that the motor 110 rotates forward or reverse. It plays a role of changing the polarity of the positive (+) and negative (-) poles. Here, the switching unit 140 may be composed of two C contact relays 141.

The control unit 150 controls the switching operation of the switching unit 140, receives the rotational displacement of the motor 110, and transmits a control signal for precise control of the motor 110 to the switching unit 140, The motor control signal is received from an external device (not shown) and reflected in the motor control, and information on the degree of opening or closing of the ventilation window is transmitted to the external device. Here, the control unit 150 generates an instantaneous voltage drop due to the flow of a starting current (7 to 8 times the normal current) that is greater than the current during normal operation when the motor 110 starts. The charging circuit 151 may be further provided to stably supply power to the controller 150 to prevent the operation of the controller from being stopped, so that the controller 150 can stably operate. In addition, the control unit 150 as described above may further include a wireless communication module 152 for wirelessly receiving the motor control signal from the external device and wirelessly transmitting the degree of opening of the ventilation window to the external device. Here, a microcontroller may also be used as the control unit 150.

In the actuator 100 for opening and closing a greenhouse for a smart farm motor according to the present invention having the configuration as described above, when a user wants to open a ventilation window of a greenhouse or a greenhouse, the user may use a wireless terminal (for example, a remote control or Open switch (button) of the smartphone (in the case of a smartphone, if you download and store the app for opening and closing the ventilation window in advance, and then you want to open and close the ventilation window, this app is executed. ) Button will appear. Press (). Then, the control unit 150 receives a command signal from the wireless terminal through the wireless communication module 152, and transmits a control signal corresponding thereto to the switching unit 140. Accordingly, the relay 141 of the switching unit 140 performs a corresponding switching operation, and as a result, power (DC 24V) is supplied to the motor 110 so that the motor 110 is driven (rotated). Reduction gears (not shown) and couplings that are connected to the rotational shaft of the motor 110 interlock with the driving of the motor 110, so that the guide roller 320 moves linearly along the track 310 (eg For example, it rises). Then, the opening/closing shaft connected to the guide roller 320 also moves at the same time, and accordingly, the ventilation window in the closed state is opened. In this process, the user adjusts the degree of opening of the ventilation window using the adjustment switch (button) displayed on the screen of the wireless terminal or smartphone, and accordingly, after the ventilation window is opened as much as the user desires, the operation of the motor 110 stops. do.

Then, when the user wants to close the ventilation window, the user similarly presses the close switch (button) of the wireless terminal (for example, a remote control or a smartphone). Then, the control unit 150 receives a command signal from the wireless terminal through the wireless communication module 152, and transmits a control signal corresponding thereto to the switching unit 140. Accordingly, the relay 141 of the switching unit 140 performs a corresponding switching operation, and as a result, power (DC 24V) is supplied to the motor 110 so that the motor 110 is driven (rotated). Reduction gears (not shown) and couplings that are connected to the rotational shaft of the motor 110 interlock with the driving of the motor 110, so that the guide roller 320 moves linearly along the track 310 (eg (For example, descend). Then, the opening/closing shaft connected to the guide roller 320 also moves at the same time, and accordingly, the ventilation window in the open state is closed. In this process, the user adjusts the degree of closing of the ventilation window using the adjustment switch (button) displayed on the screen of the wireless terminal or smart phone. Accordingly, after the ventilation window is closed as much as the user desires, the operation of the motor 110 stops. do.

In the series of processes as described above, a large starting current (7 to 8 times the current during normal operation of the motor) flows to the motor 110 momentarily when the motor 110 is started. In the present invention, this starting current In preparation, a separate charging circuit 151 is provided in the control unit 150 so that the charging circuit 151 actively copes with sudden voltage fluctuations. Accordingly, the control unit 150 can stably operate. In addition, when the motor 110 is driven, the encoder 160 detects the rotational displacement (motion of the motor) of the motor 110 and sends feedback to the control unit 150, and the control unit 150 receives feedback from the encoder 160 The operating state of the motor 110 is determined based on the rotational displacement of the motor 110 and a control signal for precise control of the motor 110 is transmitted to the switching unit 140. In addition, the control unit 150 transmits information about the degree of opening or closing of the ventilation window to an external device (for example, a smartphone, a tablet PC, a notebook PC, etc.). Accordingly, the user can check the degree of opening or closing of the ventilation window of the greenhouse (or vinyl house) even at a remote location.

As described above, the motor-integrated greenhouse ventilation window opening/closing actuator for a smart farm according to the present invention can reduce the system equipment cost of a smart farm because a separate actuator system is not required by integrating the actuator system into the motor for opening and closing the greenhouse ventilation window, By establishing a wireless communication function in the driver system, the motor can be controlled wirelessly without the installation of a separate cable for controlling the motor, and the greenhouse environment is optimally controlled by precisely controlling the motor by feedback of the motor operation using an encoder. It has the advantage of being controllable.

As described above, the present invention has been described in detail through preferred embodiments, but the present invention is not limited thereto, and various modifications and applications can be made without departing from the scope of the technical spirit of the present invention. It is obvious to the technician. Therefore, the true protection scope of the present invention should be interpreted by the following claims, and all technical spirits within the equivalent scope should be interpreted as being included in the scope of the present invention.

100: (invention) a drive for opening and closing the ventilation window with integrated motor for smart farm
110: motor 120: transformer
130: rectifying circuit section 140: switching section
141: relay 150: control unit
151: charging circuit 152: wireless communication module
160: encoder 170: limiter
310: track 320: guide roller

Claims (6)

A motor provided on one side of a guide roller on a track for moving up and down or left and right of a motor and providing power for opening and closing a ventilation window of a greenhouse;
A transformer installed close to the motor and receiving an AC voltage from the outside to convert it into an AC 24V voltage and supply it;
A rectifying circuit unit receiving the AC 24V voltage from the transformer and rectifying and supplying DC 24V;
A switching unit that supplies the DC 24V voltage rectified by the rectifying circuit unit to the motor, and changes the polarity (+) and negative (-) polarities of the DC 24V voltage supplied to the motor such that the motor rotates forward or reverse; And
Controls the switching operation of the switching unit, receives the rotational displacement of the motor, sends a control signal for precise control of the motor to the switching unit, receives a motor control signal from an external device, reflects it in the motor control, and opens the ventilation window or A driver for opening and closing the ventilation window of a motor-integrated greenhouse for a smart farm including a control unit that transmits closing degree information to an external device.
According to claim 1,
The motor is a motor-integrated greenhouse ventilation window opening and closing driver for a smart farm, which is further equipped with an encoder for detecting the rotational displacement of the motor and transmitting feedback to the control unit.
According to claim 1,
In the motor, the motor is a motor-driven greenhouse ventilation window opening/closing mechanism for smart farms, in which a limiter for limiting a vertical or horizontal movement range is further installed when the motor moves vertically or horizontally on a track through a guide roller.
According to claim 1,
The switching unit is a motor for a smart farm motor integrated greenhouse ventilation window opening and closing consisting of two C contact relay.
According to claim 1,
The control unit operates stably by supplying power to the control unit stably to prevent the operation of the control unit from stopping due to the instantaneous voltage drop due to the flow of the starting current greater than the current during normal operation when the motor starts. A driver for opening and closing the greenhouse ventilation window with a motor for a smart farm, which is further equipped with a charging circuit that enables the user to do so.
According to claim 1,
The control unit further includes a wireless communication module for wirelessly receiving a motor control signal from an external device and wirelessly transmitting the degree of opening or closing of the ventilation window to an external device.

Images