KR101564272B1 - Method and Apparatus for Releasing Shutdown of Greenhouse Opening/Closing System - Google Patents

Abstract

The present invention relates to a method and an apparatus for automatically or semi-automatically releasing shutdown, which enables a user to safely and conveniently restore a mechanically driven opening/closing system such as an auto ventilation window or a screen (an insulation curtain, a light-shielding curtain, etc.) at a greenhouse when the system abnormally operates to shut the system down in emergency. More specifically, the present invention relates to a method for releasing shutdown of a greenhouse opening/closing system comprising: a forward/backward motor; an F switch and an F magnet for forward rotation; an R switch and an R magnet for counter-rotation; an F limit and an R limit determining a normal stop location; and an F emergency limit and an R emergency limit recognizing deviation from the normal stop location, wherein the greenhouse opening/closing system shuts a control circuit down when the F emergency limit or the R emergency limit operates. The method for releasing shutdown of a greenhouse opening/closing system comprises: (A) a shutdown sensing step of sensing the shutdown of the control circuit caused by the operation of the F emergency limit or the R emergency limit; (B) an operated limit memorization step of storing whether the F emergency limit operates or/and the R emergency limit operates; (C) a circuit initialization step of initializing the control circuit; and (D) a restoration step of operating an R magnet after the F emergency limit operated or operating the F magnet after the R emergency limit operates.

Description

TECHNICAL FIELD [0001] The present invention relates to a method and an apparatus for releasing shutdown of a greenhouse opening /

An automatic or semiautomatic shutdown releasing method and a releasing method for safely and conveniently recovering a system when the system is in an emergency stop due to an abnormal operation of a mechanical opening / closing system such as a greenhouse automatic window or a screen (insulating curtain, ≪ / RTI >

In general, the internal temperature and humidity of a house for growing plants or livestock (hereinafter simply referred to as a 'greenhouse') is one of the most important conditions for the growth environment of animals and plants , Ventilation control is also an important requirement. Therefore, a greenhouse is provided with an openable ventilation window on the ceiling or side for the purpose of temperature control and ventilation, or a screen such as a heat insulation curtain or a light-shielding curtain which can be covered or walked. At this time, it is very difficult and troublesome to manually open / close the ventilating window of the greenhouse, or to cover the screen, so that the electric opening / closing system is usually installed so that the automatic opening / closing / attaching / detaching is performed.

The ventilation window opening / closing system generally includes a case-shaped case, a three-phase front and rear motor mounted on the case, a deceleration means for transmitting a constant rotational force while decelerating the rotational force of the forward and reverse motors, And a panel part including an electromagnetic contactor (magnetic contactor, hereinafter referred to as 'magnet') for controlling electric power supply for forward and reverse rotation to the forward and reverse motors. The screen opening / closing system generally includes a pair of tow lines connected at one end, a take-up roll for winding the tow lines in mutually different rotational directions, a three-phase forward / reverse motor for forward or reverse rotation of the take- And a panel portion including a magnet for controlling power supply. The side window opening and closing system of the greenhouse is similar to that of the ventilation window.

In the open / close system using the three-phase and two-phase motor rotating in the forward and reverse direction, if the operation range of the ventilation window or the screen (= rotation range of the forward and reverse motors) is not predetermined, the forward and reverse motors continue to rotate forward or reverse, . Therefore, in order to limit the rotation range of the forward and reverse motors, a limit switch (hereinafter referred to as "limit") is attached to the forward and reverse motors or the deceleration means and is interlocked with the electromagnetic contactor so that the forward and reverse motors rotate by a certain amount, So that the start and end points of the ventilation window and the screen operating range are controlled.

However, if the motor rotates beyond normal rotation range (defined by the normal stop position and stop limit) for normal operation for various reasons during forward and reverse rotation of the forward and reverse motors, it may damage the ventilation window or the screen opening / closing system itself Something happens. Therefore, in order to prevent this, the final setting range (defined by the emergency stop position and emergency limit) is set so that when the rotation of the forward and reverse motors reaches the emergency limit switch, the system is stopped and the control circuit is not operated. This type is referred to as a 'double limit type'.

The protection system is operated, for example, as shown in the flowchart of the double-limit circuit according to the prior art shown in Fig. 1A and the control operation of the forward and reverse motors shown in Fig. 1B. For example, when the forward rotation switch (F switch) is operated according to a user or a predefined program, the open magnet (F magnet) is turned on and the forward / reverse motor is rotated forward. When the actuator of the F limit keeps rotating because the coil of the F magnet and the contact b of the F limit are connected in series, the coil b of the F magnet is disconnected and the F magnet opens and the operation of the forward and reverse motors is stopped off. In this state, since the b contact of the F limit is kept open, even if the user operates the F switch, it is no longer rotated forward. Next, when the reverse switch (R switch) is operated, the forward and reverse motors rotate reversely until the actuator of the R limit moves in the same manner as described above. That is, in such a normal state, the normal or stationary motor operates within the normal range by operating the F switch or the R switch according to the user or a predefined program.

However, as described above, if the forward and reverse motors continue to rotate beyond the range (F limit to R limit) set for normal operation for some reason, damage to the opening and closing system is caused, and even if the rotation is stopped in the state exceeding the range, (For example, exceeding the normal rotation range but operating the F switch) also causes damage to the system. Therefore, when the forward motor is brought into contact with the F emergency limit or R emergency limit by putting one set of limit (F emergency limit and R emergency limit) outside the set range, the control circuit (for example, the switching circuit) Protect the system by preventing it from operating.

When the system is shut down, the user checks the entire system and solves the problem. Then, it verifies whether the forward motor has stopped rotating, reversed, stopped, opened the control panel, reset the system on the circuit, , And when it stops rotating in the reverse direction, the F switch is operated to normalize the system.

In the case of the greenhouse opening / closing system, it is a reality that most of the emergency stop is caused by abnormal operation of the opening / closing system rather than the failure of the control system, operation due to the bad condition, and surrounding environment. Therefore, it is not only cumbersome because it is necessary to reset the system every emergency stop, but also because the user (farmer) who is not an expert in the field of electric and electronic control is doing manual system normalization work, There are frequent problems.

It is an object of the present invention to provide a method and apparatus for releasing a shutdown of a greenhouse opening / closing system that can be conveniently normalized without danger when emergency shutdown of various greenhouse opening / closing systems occurs.

According to an aspect of the present invention, there is provided an electric motor including a forward and reverse motors, an F-switch and an F-magnet for forward rotation, an R-switch and an R-magnet for reverse rotation, an F-limit and an R- (F) Emergency limit or R emergency limit (F) Emergency limit or R emergency limit (R) Emergency limit (R) Emergency limit (R) Emergency limit A shutdown detection step of detecting a circuit shutdown by the shutdown detection circuit; (B) an operation limit storing step for storing whether the F emergency limit has been activated or the R emergency limit has been activated; (C) a circuit initializing step of initializing the control circuit; And (D) returning the R magnet if the F emergency limit has been activated, and returning the F magnet if the R emergency limit has been activated, and to a method for releasing the shutdown of the greenhouse opening and closing system.

As described above, according to the present invention, when the greenhouse opening / closing system is in an emergency stop, the shutdown is canceled completely automatically or semiautomatically, so that the environmental management of the greenhouse is convenient. In addition, Accident, and so on.

According to the present invention, when the emergency stop of the greenhouse opening / closing system is repeated more than a predetermined number of times, the user can be warned to check whether the emergency stop caused by the simple system error or the failure of the opening / It becomes possible to protect it.

FIG. 1A is a conceptual partial circuit diagram showing a double limit in a conventional double limit type greenhouse switching system. FIG.
1B is a flow chart of operation control of a conventional double limit type greenhouse opening / closing system.
BACKGROUND OF THE INVENTION 1. Field of the Invention [0002] The present invention relates to a shut-
3 is a conceptual block diagram of an example of an apparatus for shutting down a greenhouse opening / closing system according to the present invention.
4 is a conceptual partial circuit diagram showing the relationship between the shutdown release device and the dual limit of the greenhouse opening / closing system according to the present invention.
FIG. 5 is a flow chart of operation control of a double limit type greenhouse opening / closing system to which a method and apparatus for shutting down a greenhouse opening and closing system according to the present invention are applied.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described in detail with reference to the accompanying drawings. It should be understood, however, that the appended drawings illustrate only the contents and scope of technology of the present invention, and the technical scope of the present invention is not limited thereto. It will be apparent to those skilled in the art that various changes and modifications can be made within the scope of the technical idea of the present invention based on these examples. It is also to be understood that when an element of a claim is referred to by reference to an element, it is for the purpose of illustration only and is not intended to limit the element.

In the following, F means forward rotation, R means reverse rotation, the magnet means an electromagnetic contactor, and the limit means a limit switch, a microswitch or a proximity switch.

In the present invention, the term "shot down" means that when the forward / reverse motor is out of the normal stop position in the greenhouse opening / closing system, that is, when an abnormality occurs in the forward position control, Thereby preventing damage to the battery.

As described above, the present invention can be applied to an electric motor including a forward and reverse motors, an F-switch and an F-magnet for forward rotation, an R-switch and an R-magnet for reverse rotation, an F- Limiting cooling system including an emergency limit and an R emergency limit so as to shut down the control circuit when the F emergency limit or the R emergency limit operates, and a releasing device of the double limit type greenhouse opening and closing system. More specifically, the present invention relates to a method and apparatus for automatically or semi-automatically releasing a conventional greenhouse opening / closing system to which a double limit as shown in FIG. 1B is applied when the system is shut down for some reason.

FIG. 2 is a flow chart showing a procedure of a shutdown releasing method of a greenhouse opening / closing system according to the present invention, FIG. 3 is a conceptual diagram of an example of a shutdown releasing apparatus according to the present invention, FIG. 5 is a conceptual partial circuit diagram showing the relationship with the double limit, and FIG. 5 is a flowchart showing the operation control of the double limit type greenhouse opening / closing system to which the method and apparatus for shutdown according to the present invention are applied.

(1) Method of releasing shutdown of greenhouse opening / closing system

The present invention relates to a shutdown releasing method of a greenhouse opening / closing system including a shutdown sensing step, an operating limit storing step, a circuit initializing step and a returning step (see FIGS. 2 and 5).

The shutdown sensing step is a step of recognizing the shutdown of the control circuit by the F emergency limit or R emergency limit operation. As described in the Background of the Invention, in the conventional double limit type opening and closing system, the forward motor is rotated to the F setting limit or the R emergency limit beyond the F limit or R limit, which is the rotation range set for normal operation, The system will be stopped (shut down) in a way that the control circuit stops, thereby preventing the system from being fatal due to abnormal operation. As a concrete method of shutting down the control circuit, when the actuator of the F emergency limit or the R emergency limit is operated, the power to the control circuit is cut off, or the coil of the magnet is turned off (operated) The magnet coil may be turned off and the magnet coil may be turned off so that no signal is generated even when the switch is operated. Thus, a person skilled in the art can arbitrarily select an appropriate method. When the system is shut down, the user must uncover the cause of the abnormal operation, repair it, and then manually release the shutdown according to the manual. However, as described above, in the case of the greenhouse opening / closing system, the shutdown due to the operating error is frequent, which is rather inconvenient. Therefore, in the present invention, the shutdown is canceled automatically or semi-automatically.

The operation limit memory step is a step of storing whether the F emergency limit has been activated or the R emergency limit has been activated. That is, it is a step of storing whether the forward / reverse motor is in forward rotation or shutdown or reverse rotation and shutdown, which is important information in the course of the return step to be described later.

In the present invention, the shutdown sensing step and the operation limit storing step may be performed simultaneously in terms of time. That is, if the F emergency limit is activated or the R emergency limit is activated, the shutdown system is interpreted as being shut down.

The circuit initializing step is a step of resetting the control circuit of the shutdown system, that is, returning it to the operation ready state. The control circuit may be initialized automatically by a preset program or may be semi-automatically operated by an external input of a user operating, for example, a reset button, You can do it. The specific reset method is determined by the control circuit shutdown method.

The returning step is a process of returning the rotation state of the forward and reverse motors out of the normal stop position back to the normal operating range between the F limit and the R limit. If shutdown operation is F emergency limit, R magnet is operated, and if it is R emergency limit, F magnet is operated. If the F emergency limit is activated and shut down, then the R motor is operated so that the motor rotates in the reverse direction because the motor is over-rotated. If the motor rotates in the reverse direction through the F limit and touches the actuator of the R limit Since the control circuit is operating normally, the coil of the R magnet is cut off and the rotation of the forward and reverse motors is stopped. In some cases, it may be possible to stop when passing the F limit or to stop between the F limit and R limit. If the R magnet does not stop, the control circuit will shut down again at the R emergency limit.

If the R emergency limit is activated and shut down, it operates in reverse.

After the return step, the greenhouse opening / closing system is ready for normal operation.

On the other hand, in a greenhouse opening / closing system where there is a high possibility of an emergency stop due to a minor error, if the emergency stop is repeated, it can be assumed that some kind of failure has occurred in the system. In such a case, if the shutdown can be easily released automatically or semi-automatically, the shut-off system itself may be seriously damaged. Therefore, in the present invention, a display step of storing and displaying the number of circuit shutdown recognition times by the (E) F emergency limit or the R emergency limit operation is added, and when the shutdown is recognized a predetermined number of times or more, It is preferable not to perform the process. For example, if the emer- gency stop is repeated five times, it will prevent the shutdown from being released automatically or semi-automatically, so that the user or, if possible, the electrical and electronics specialist will inspect the system closely to repair the fault and manually release the shutdown.

(2) Shutdown release system of greenhouse opening and closing system

The present invention relates to a shutdown releasing apparatus for a greenhouse opening / closing system including a sensing unit, a storage unit, and a control unit (see FIGS. 3, 4 and 5).

The sensing unit is an element that functions to detect whether the F emergency limit of the opening and closing system has operated or whether the R emergency limit has been activated (1 in Fig. 3). The storage unit stores the F emergency limit (2 in Fig. 3) for storing and storing whether the R emergency limit is activated or not. At this time, the sensing unit may be an F emergency limit or an R emergency limit of the greenhouse opening / closing system, or may be a predetermined sensor and a circuit installed separately from the F emergency limit or the R emergency limit. In the case of an electronic system, an operation signal of the F emergency limit or R emergency limit is received from the control circuit of the opening / closing system and stored in the storage unit. On the other hand, information that the control circuit has been shut down may be transferred from the control circuit of the opening and closing system directly to the control unit of the releasing device (indicated by a dotted line in Fig. 3).

The control unit initializes the control circuit of the opening and closing system (3 in Fig. 3), refers to the storage unit, operates the R magnet if the F emergency limit is activated, and activates the F magnet if the R emergency limit operates ) Function.

The phenomenon in the process of operating each constituent section has been described in detail in the above-mentioned releasing method.

The shutdown releasing apparatus according to the present invention may be configured such that: (1) a program previously set in the storage section is stored, and the control section is automatically fully automated to release the shutdown of the opening and closing system according to the operation of the program; (For example, a release button) for recognizing the input, and may be semi-automated to release the shutdown of the opening / closing system only when the control unit has an input signal from the input unit.

Further, the shutdown releasing apparatus according to the present invention further stores the number of circuit shutdown recognitions by the F emergency limit or R emergency limit operation in the storage unit, and does not perform any operation when the control unit recognizes the shutdown for a predetermined number of times or more good. As a result, when the actual switching system is broken, it is possible to prevent the shutdown from being released and provide an opportunity to repair the switching system. At this time, it is preferable that a separate external input unit (not shown) is provided in the apparatus so that the number of shutdown recognition of the storage unit is reset to zero by an external input.

On the other hand, when the greenhouse opening and closing system is shut down, it is desirable that the user can immediately grasp the relevant information. To this end, the unlocking apparatus according to the present invention is characterized in that: (1) shutdown information, (2) information on whether the F emergency limit or the R emergency limit has been activated, (3) information on the number of shutdowns or (4) number of shutdowns is equal to or greater than a predetermined number, And a visual or auditory display unit for displaying one or a plurality of pieces of information indicating the presence or absence of the information. The time display unit may be a yellow or blue warning light flashing periodically, and the audible display unit may be a sounding sound producing a predetermined sound such as a siren. On the other hand, such a visual or audible display may include allowing information to be transmitted to a remote location (e.g., a user's cell phone) by wire or wireless.

The operation of the shutdown releasing method according to the present invention and the greenhouse opening / closing system to which the releasing device is applied will be described with reference to FIGS. 2 and 5. FIG.

F emergency limit or R emergency limit is activated and shutdown of the control circuit occurs is the same as that of the conventional greenhouse opening and closing system described with reference to FIG. Thereafter, the shutdown of the control circuit is sensed by the releasing device (releasing method) according to the present invention, and whether the F emergency limit or the R emergency limit is operated is also stored. Then, when the control circuit is initialized automatically or semi-automatically, the R magnet is activated when the F emergency limit was activated in the shutdown state, and the F magnet is activated when the R emergency limit was set, thereby returning the greenhouse opening and closing system to the normal state.

In the shutdown releasing method and the releasing device according to the present invention, the greenhouse opening and closing system is described as having only two steps of opening and closing in the normal operation range. However, It will be appreciated that the system can be switched off manually or automatically within its operating range. Accordingly, it is possible to control the degree of opening of the opening and closing system by appropriately responding to environmental conditions.

Claims (8)

F-limit and F-magnet for forward rotation, R-switch and R-magnet for reverse rotation, F-limit and R-limit to determine normal stop position, F-emergency limit and R- Shutting down the control circuit when the F emergency limit or the R emergency limit is activated,
(A) detecting a shutdown of the control circuit by an F emergency limit or an R emergency limit operation;
(B) an operation limit storing step for storing whether the F emergency limit has been activated or the R emergency limit has been activated;
(C) a circuit initializing step of initializing the control circuit;
(D) returning the R magnet if the F emergency limit has been activated, and returning the F magnet if the R emergency limit has been activated; And
And a display step of storing and displaying the number of circuit shutdown recognition times by the (E) F emergency limit or the R emergency limit operation,
And when the shutdown is recognized more than the predetermined number of times, the shutdown releasing is stopped.
The method according to claim 1,
Wherein the initialization of the control circuit in the step (C) is performed automatically by a preset program or semi-automatically by external input of a user.
delete An apparatus for shutting down a greenhouse opening and closing system for performing a shutdown releasing method according to claim 1 or 2,
(A) a sensing unit for sensing the operation of the F emergency limit and the R emergency limit of the opening and closing system;
(B) a storage unit for storing whether the F emergency limit has been activated or the R emergency limit has been activated according to a signal of the sensing unit, and the number of times the circuit emergency shutdown recognition by the F emergency limit or R emergency limit operation has been performed; And
(C) The control circuit of the opening / closing system is initialized. If the F emergency limit is activated, the control circuit of the switching system is initialized. If the R emergency limit is activated, the F magnet is operated. If the R emergency limit is activated, A control unit;
Shutting down the greenhouse opening / closing system.
5. The method of claim 4,
Wherein the storage unit stores a preset program and the control unit automatically releases the shutdown of the opening and closing system according to the operation of the program.
5. The method of claim 4,
Further comprising an input unit for recognizing a user's external input,
Wherein the control unit releases the shutdown of the opening / closing system only when there is an input signal from the input unit.
delete 5. The method of claim 4,
Information indicating that the F emergency limit has been operated, whether or not the R emergency limit has been activated, information indicating that the shutdown count information or the number of shutdown times is equal to or greater than the predetermined number of times and operation of the memory reset input section is required, Further comprising a shutdown device for shutting down the greenhouse opening / closing system.

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