JP2003239629A - Electric gate - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an electric gate which can prevent other persons from freely opening a gate even if a key is not provided, enables easy changes in opened and closed positions of the gate, enables the gate to be surely closed even if a failure occurs in operations of the gate, and enables the easy checking of operating conditions of the gate. <P>SOLUTION: This electric gate for opening/closing the gate 1 by using a motor 10 is composed of a control device 20 which transmits control instructions for the gate to the motor 10 and a position detecting part 11 which detects a present position of the gate 1 as detected position data. The control device 20 is equipped with: a closed-gate state determining program 41 for determining whether or not the gate 1 is in a closed-gate state; and an opening-of-gate preventing program 36 for transmitting a gate closing instruction for closing the gate 1 to the motor 10, when it is determined that the gate 1 is in the closed-gate state in the program 41 and the variation of the detected position data of the detecting part 11 exceeds a prescribed value. <P>COPYRIGHT: (C)2003,JPO

Description

Detailed Description of the Invention

[0001]

TECHNICAL FIELD The present invention relates to an electric gate.

[0002]

2. Description of the Related Art Conventional electric gates send an operation command to a motor by pushing an operation button such as an opening button, a closing button, or a stop button of an external switch, and the motor opens or closes or stops the gate. It can be operated.
Whether the gate is opened or closed is determined by setting limit switches at the open and closed positions of the gate and detecting whether the gate is detected by these limit switches.

[0003]

However, the conventional electric gate has the following problems (i) to (iv). (I) With the conventional electric gate, even if the user tries to open the gate manually not only by the command to open the external switch using the external switch, the gate will open, so to keep the gate closed, the key is the key. Need to call. The work of locking the gate is troublesome. (Ii) When changing the open or closed position of the gate,
It is necessary to move and change the position of the limit switch, which is troublesome. (iii) In addition, there is an electric gate that indicates the operating state of the motor by the pulse of the encoder and determines whether the gate is closed by counting the pulse, but for some reason there is a failure in the gate operation May not close completely. Specifically, when the gate is opened and closed with a strong force, the pin of the chain that operates the gate may deviate from the predetermined tooth of the sprocket attached to the motor shaft, and the encoder counter value It does not correspond to the fully closed position of the gate. This may become a security hole and prevent sufficient crime prevention. (Iv) Since the conventional electric gate is not provided with a display panel showing the operation status of the gate, the operation status of the gate cannot be known. Therefore, it is difficult to identify the cause of the gate failure, and maintenance work for the gate takes time.

In view of such circumstances, the present invention can prevent others from opening the gate without the need to prepare a key, and can easily change the open position and the closed position of the gate. The purpose of the present invention is to provide an electric gate that can close the gate surely even if a failure occurs in the operation of the gate, can easily check the operation status of the gate, and can easily perform maintenance work. To do.

[0005]

The electric gate according to claim 1 is
An electric gate that opens and closes the gate with a motor, comprising a control device that transmits a gate control command to the motor, and a position detection unit that detects the current position of the gate as detection position data, and the control device is, A closed state determination processing unit that determines whether the gate is in the closed state, and a change amount of the detected position data detected by the position detection unit that is determined to be in the closed state by the closed state determination processing unit has a predetermined value. When it exceeds, a gate opening prevention processing means for transmitting a closing command for closing the gate to the motor is provided. The electric gate according to claim 2, wherein the motor is an electric gate that opens and closes the gate, and a controller that transmits a gate control command to the motor, and a closing position memory for recording closing position data of the gate. A position detection unit that detects the position of the gate as detection position data, wherein the control device is
A closing position recording processing means for recording the detected position data detected by the position detecting unit as closing position data in the closing position memory is provided. The electric gate of claim 3 is an electric gate that opens and closes the gate with a motor,
A control device that transmits a control command for the gate to the motor, an opening position memory for recording the opening position data of the gate, and a position detection unit that detects the position of the gate as detection position data, It is characterized in that the control device is provided with an opening position recording processing means for recording the detected position data detected by the position detecting section as opening position data in the opening position memory. The electric gate of claim 4 is an electric gate that opens and closes the gate with a motor, and a control device that transmits a gate control command to the motor, and a closing position memory for recording closing position data of the gate. A position detection unit that detects the current position of the gate, and the control device transmits a closing command for causing the motor to close the gate until the closing position data and the detected position data become equal, and the closing command After the end of the process (1), a gate closing guarantee processing means for transmitting a gate closing command to the motor again for a predetermined time is provided again. The electric gate of claim 5 is the same as that of claim 4.
In the invention described, the control device is provided with a motor current detection unit for detecting a current flowing through the motor, the control device, when the current of the motor exceeds a dangerous value continuously for a predetermined time or more, The present invention is characterized by including a dangerous stop processing means that interrupts the closing processing of the closing guarantee processing means and transmits a stop command for stopping the gate to the motor. According to a sixth aspect of the present invention, in the invention according to the fourth aspect, the electric gate includes a closing position correction processing unit that causes the closing position recording processing unit to be executed after the processing of the closing guarantee processing unit is completed. An electric gate according to claim 7 is an electric gate that opens and closes the gate by a motor, and is provided with a display panel, and the display panel is provided with an LED that indicates an operation status of the gate.

According to the first aspect of the present invention, the closed state determination processing means of the control device determines that the gate is in the closed state,
When the amount of change in the detected position data of the position detector exceeds a predetermined value, the gate opening prevention processing means sends a closing command to the motor to close the gate, so that the opening of the gate can be prevented by the motor. Therefore, even if you try to open the gate in the closed state, the motor can prevent the gate from opening, so it is possible to prevent others from opening the gate in the closed state, and even if you do not prepare a key Functions can be added. Further, when power is not supplied to the motor due to a power failure or the like, the gate can be opened manually to go out. According to the second aspect of the present invention, the closed position recording processing means of the control device can record the detected position data detected by the position detection unit in the closed position memory as the closed position data. For this reason,
The closing position of the gate can be changed by moving the gate to a desired position and overwriting the detection position data of the gate detected by the position detecting unit in the closing position memory.
Therefore, you can easily change the closing position of the gate just by changing the data recorded in the closing position memory.
Limit switches and their position change work are not required.
According to the invention of claim 3, the opening position recording processing means of the control device can record the detection position data detected by the position detecting unit as the opening position data in the opening position memory. Therefore, the opening / closing position of the gate can be changed by moving the gate to a desired position and overwriting the detection position data of the gate detected by the position detection unit in the opening / closing memory. Therefore, the opening position of the gate can be easily changed only by changing the data recorded in the opening position memory, and the limit switch and its position changing work are not required. According to the invention of claim 4, the gate closing guarantee processing means executes the gate closing processing until the closing position data becomes equal to the detected position data.
After the closing process is completed, the closing command is transmitted again for a predetermined time. Therefore, since the closing process is executed in two stages,
Even if the gate is not completely closed by the first-stage closing process, the gate can be completely closed. According to the invention of claim 5, when the motor current exceeds the dangerous value for a predetermined period of time or longer, the closing process of the closing guarantee processing means is interrupted to stop the gate by the dangerous stop processing means. it can. Therefore, the gate can be stopped when there is a danger that a human body is caught in the gate, which is safe. According to the invention of claim 6, after the gate is completely closed by the closing guarantee processing means of the control device, the closing position recording processing means uses the detection position data of the gate detected by the position detecting unit as closing position data and the closing position. Can be overwritten in memory. Therefore, the closed position of the gate can be automatically corrected. According to the invention of claim 7,
The display panel is provided with an LED indicating the operation status of the gate, and by checking the lighting of the LED, the operation status of the gate can be easily grasped and maintenance work can be easily performed.

[0007]

BEST MODE FOR CARRYING OUT THE INVENTION Next, an embodiment of the present invention will be described with reference to the drawings. FIG. 1 is a front view of the electric gate of this embodiment. In the figure, reference numeral 1 is a gate. Gate 1
A caster 2 is attached to the lower part of the gate so that the gate 1 can move on the floor. The gate 1 is supported horizontally by the guide columns 3, and the gate 1 can move while being maintained horizontally. Door stop pillar 4 at the position where the gate 1 is closed
Is provided. A drive unit 5 is provided below the guide column 3. Although not shown, a motor 10, a position detector 11, a motor current detector 12, a display panel 13, and a controller 20 for moving the gate 1 are housed inside the drive unit 5.

The motor 10 is rotationally controlled according to a processing command signal from the control device 20. A sprocket is attached to the rotary shaft of the motor 10, a chain is horizontally attached to the gate 1, and the sprocket is meshed with this chain. Therefore, the motor 1
When 0 is driven, the chain pins are sequentially pushed by the teeth of the sprocket, so that the gate 1 opens and closes. The position detection unit 11 is a sensor that detects the position of the gate 1, and for example, an encoder that detects the rotation angle of the motor 10 may be used. This is because the rotation angle of the motor 10 and the position of the gate 1 can be made to correspond one to one. The detection signal detected by the position detection unit 11 as the detection position of the gate 1 is transmitted to the control device 20. The motor current detection unit 12 includes a sensor that detects a current flowing through the motor 10, and the detected current value is transmitted to the control device 20. In addition,
The power supply for the electric gate of this embodiment may be a commercial power supply of AC100V, a battery, or a solar cell module.

FIG. 2 is a front view of the display panel 13. As shown in the figure, the display panel 13 is an L indicating the operation status of the gate 1.
It has an ED. The display panel 13 is provided with LEDs for receiving power, running, position detection, fixed position, obstacle, stop, gate closing, and gate opening. Therefore, by checking whether or not each LED is turned on, it is possible to check the mechanical status of the gate 1 and the operating status such as the power supply status of the gate 1, and the maintenance work can be easily performed. Although details of the control device 20 will be described later, a processing request signal from the user is input to the control device 20 by the external switch 6.

FIG. 3 is an enlarged view of the external switch 6. As shown in the figure, the external switch 6 includes a switch body 61.
In addition, only the opening button 62, the stop button 63, and the closing button 64 are attached to the switch.

Next, the controller 20 which is particularly important in the present invention.
Will be explained. FIG. 4 is a block diagram of the control device 20.
As shown in the figure, the control device 20 includes a control board, and an input / output port, a CPU, a memory and the like are attached to the control board. The following input signals A1 to A6 are input to the control device 20. (A1) Depressing signal of the opening button 62 (A2) Depressing signal of the stop button 63 (A3) Depressing signal of the closing button 64 (A4) Detection position signal of the gate 1 detected by the position detector 11 (A5) Motor current detection The detection signal of the current value of the motor 10 detected by the unit 12 and the following output signals B1 and B2 are output from the control device 20. (B1) Processing command signal to the motor 10 (B2) Lighting signal to the display panel 13

The control device 20 has an open position memory 21 and a close position memory 22 as data storage areas. The closing position memory 21 is a memory for storing the opening position data of the gate 1. The closing position memory 22 is
It is a memory for storing the closing position data of the gate 1.

The control device 20 also includes data processing programs 31 to 36, 41 to 45. Each of the data processing programs 31 to 36, 41 to 45 is implemented as a memory circuit.

The opening program 31 sends an opening command to the motor 10. The stop program 32 sends a stop command to the motor 10. The door closing program 33 sends a door closing instruction to the motor 10.

The open position recording program 34 stores the detected position signal of the gate 1 detected by the position detecting section 11 in the open position memory 21 as open position data. The closing position recording program 35 includes the position detecting unit 11
The detection position signal of the gate 1 detected by is stored in the closing position memory 22 as closing position data.

FIG. 5 is a flow chart of the processing distribution program 36. As shown in the figure, the processing distribution program 36 is a program that performs any of the following processing (A) to (E). (A) When the push-down signal of the gate opening button 62 is input, the gate opening program 31 is executed to send a gate opening command to the motor 10 to perform gate opening processing. (B) When the pressing signal of the stop button 63 is input, the stop program 32 is executed, a stop command is transmitted to the motor 10, and the stop processing is performed. (C) When the pressing signal of the closing button 64 is input, the closing program 33 is executed to send a closing command to the motor 10 to perform the closing process. (D) When both the opening button 62 and the stop button 63 are continuously pressed for a predetermined time, for example, 5 seconds, the opening position recording program 34 is executed to perform the opening position recording process. (E) When both the closing button 64 and the stop button 63 are continuously pressed for a predetermined time, for example, 5 seconds, the closing position recording program 35 is executed to perform the closing position recording process.

FIG. 6 is a flow chart of the closed gate state determination program 41 and the open gate prevention program 42. As shown in the figure, the closed-state determination program 41 determines whether the gate is in the closed state. Whether or not the gate is in the closed state may be determined by, for example, the detection position detected by the position detection unit 11. The gate opening prevention program 42 determines that the gate is in the closed state by the closed state determination program 41, and the change amount of the detected position data of the position detection unit 11 exceeds a predetermined value (for example, 5 mm). 33 is executed and a closing command for closing the gate 1 to the motor 10 is transmitted for a predetermined time to perform the closing process. It should be noted that the position detector 11 uses
In the case of the encoder provided on the output shaft, whether or not the detected position data exceeds the predetermined value may be determined by the magnitude of the count value of the encoder.

FIG. 7 is a flow chart of the closing guarantee program 43. As shown in the figure, the closing guarantee program 43 executes the closing program 33 until the closing position data recorded in the closing position memory 22 becomes equal to the detected position data detected by the position detecting unit 11. After the process is completed, the closing program 33 is executed again for a predetermined time (for example, 5 seconds), and the motor 10
A closing command for closing the gate 1 is transmitted to.

FIG. 8 is a flow chart of the emergency stop program 44. As shown in the figure, the dangerous stop program 44 includes the motor 1 detected by the motor current detector 12.
When the detected current of 0 exceeds the predetermined current (for example, 2.5 A) for a predetermined time (for example, 0.5 seconds), the stop program 32 is executed without executing the closing program 33, and the stop processing is performed. It is preferable to perform the opening process so that the gate 1 is opened for a short period of time (for example, about 3 seconds) before executing the stop program 32, because the pinched state can be avoided. Furthermore, the emergency stop program 4
Step 4 is executed by interrupting the gate opening process if the current of the motor 10 exceeds the dangerous value for a predetermined time or longer even during the gate opening process.

FIG. 9 is a flow chart of the closing position correction program 45. As shown in the figure, the closing position correction program 45 executes the closing position recording program 35 after the processing of the closing guarantee program 43 is completed.

According to the electric gate of this embodiment, the following operational effects (1) to (7) are obtained. (1) If the gate 1 in the closed state is forcibly opened, the detection position data of the gate detected by the position detection unit 11 changes. Closing state determination program 4 of control device 20
It is determined in 1 that the gate is closed, and the position detection unit 11
When the amount of change in the detected position data detected in step 1 exceeds a predetermined value, the gate opening prevention program 42 transmits a closing command for closing the gate 1 to the motor 10.
0 can prevent the gate 1 from opening. Therefore, even if the gate 1 in the closed state is opened, the motor 10
Since it is possible to prevent the gate 1 from opening, it is possible to prevent others from opening the gate 1 without permission, and it is possible to add a crime prevention function to the gate without preparing a key. Further, when electric power is not supplied to the motor 10 due to a power failure or the like, the gate 1 can be opened manually to go out.

(2) The detection position data detected by the position detector 11 can be recorded in the opening position memory 21 as the opening position data by the opening position recording program 34 of the control device 20. Therefore, to change the data in the opening / closing position memory 21 of the gate 1, the gate 1 is moved to a desired position, and the detection position data of the gate 1 detected by the position detection unit 11 is overwritten in the opening / closing position memory 21. It can be processed. Therefore, the open position of the gate 1 can be easily changed only by changing the data recorded in the open position memory 21, and the limit switch and its position changing work are not required. Further, the closed position recording program 35 of the control device 20 can record the detected position data detected by the position detection unit 11 in the closed position memory 22 as the closed position data. Therefore, to change the closing position of the gate 1, the gate 1 is moved to a desired position,
It can be processed by overwriting the closed position memory 22 with the detected position data of the gate 1 detected by the position detection unit 11. Therefore, the closing position of the gate 1 can be easily changed only by changing the data recorded in the closing position memory 22, and the limit switch and its position changing work are unnecessary.

(3) The external switch 6 is the opening button 6
2, the stop button 63 and the closing button 64 are only three buttons. When both the stopping button 63 and the opening button 62 of the external switch 6 are continuously pressed for a certain period of time or more, the open position of the control device 20. Recording program 34
Thus, the detection position detected by the position detector 11 can be recorded in the opening position memory 21 as the opening position. Therefore, the external switch 6 can be configured with a simple configuration, and the open position of the gate 1 can be easily changed by a simple operation of the external switch 6. If both the stop button 63 and the closing button 64 of the external switch 6 are continuously pressed for a certain time or longer, the control device 2
With the closed position recording program 35 of 0, the detected position detected by the position detection unit 11 can be recorded in the closed position memory 22 as the closed position.

(4) The gate closing guarantee program 43 of the control device 20 executes the gate closing process until the closed position data and the detected position data become equal, and after this gate closing process is completed, the gate closing command is transmitted again for a predetermined time. . For this reason,
Since the closing process is executed in two stages, even if the gate 1 is not completely closed by the closing process in the first stage,
The gate 1 can be closed completely.

(5) When the electric current of the motor 10 exceeds the dangerous value for a predetermined time or more continuously, the closing process of the closing guarantee program 43 is interrupted, and the dangerous stop program 4 is executed.
The gate 1 can be stopped by 4. For this reason,
It is safe because the gate 1 can be stopped when a human body is caught in the gate.

(6) After the gate 1 is completely closed by the closing guarantee program 43 of the control device 20, the closing position recording program 35 closes the detected position data of the gate 1 detected by the position detector 11 as closing position data. The position memory 22 can be overwritten. Therefore, the closed position of the gate 1 can be automatically corrected.

(7) The display panel 13 is provided with an LED indicating the operation status of the gate 1, and by confirming the lighting of the LED, the operation status of the gate 1 can be easily grasped and maintenance work is simplified. Can be done.

As described above, according to the electric gate of the present embodiment, it is possible to prevent others from opening the gate 1 without the need to prepare a key, and the open and closed positions of the gate 1 can be controlled. It can be easily changed, the gate 1 can be securely closed even if a failure occurs in the gate operation, the operation status of the gate 1 can be easily checked, and maintenance work can be easily performed. It has the effect of being able to.

[0029]

According to the first aspect of the present invention, it is possible to prevent others from opening the closed gate without permission, and it is possible to add a crime prevention function to the gate without preparing a key. Further, when power is not supplied to the motor due to a power failure or the like, the gate can be opened manually to go out. According to the invention of claim 2, the closing position of the gate can be easily changed only by changing the data recorded in the closing position memory, and the limit switch and its position changing work are not required. According to the invention of claim 3, the opening position of the gate can be easily changed only by changing the data recorded in the opening position memory, and the limit switch and its position changing work are unnecessary. According to the invention of claim 4, even if the gate is not completely closed due to an obstacle in the operation of the gate, the gate can be completely closed. According to the invention of claim 5, the gate can be stopped when there is a danger that a human body is caught in the gate, which is safe. According to the invention of claim 6, the closed position of the gate can be automatically corrected. According to the invention of claim 7, the display panel is provided with the LED indicating the operation status of the gate, and the operation status of the gate can be grasped by confirming the lighting of the LED, and the maintenance work is easily performed. be able to.

[Brief description of drawings]

FIG. 1 is a front view of an electric gate according to the present embodiment.

FIG. 2 is a front view of a display board 13.

FIG. 3 is an enlarged view of an external switch 6.

FIG. 4 is a block diagram of a control device 20.

5 is a flowchart of a processing distribution program 36. FIG.

FIG. 6 is a flowchart of a closed state determination program 41 and a gate opening prevention program 42.

FIG. 7 is a flowchart of a closing guarantee program 43.

FIG. 8 is a flowchart of a dangerous stop program 44.

FIG. 9 is a flowchart of a closing position correction program 45.

[Explanation of symbols]

1 gate 6 External switch 10 motors 11 Position detector 13 Current detector 14 display board 20 Control device 21 Stop position memory 22 Closed position memory 31 Opening Program 32 Stop Program 33 Closing Program 34 Opening prevention program 35 Stop position recording program 41 Closing state discrimination program 42 Gate opening prevention program 43 Closure Guarantee Program 44 Emergency Stop Program 45 Closing position correction program 62 Open button 63 Stop button 64 Close button

Claims (7)

[Claims] 1. An electric gate for opening and closing a gate by a motor, comprising a control device for transmitting a gate control command to the motor, and a position detector for detecting the current position of the gate as detected position data. The control device, a closed state determination processing means for determining whether the gate is in a closed state,
The closed state determination processing means determines that the closed state,
An electric gate door, comprising: a gate opening prevention processing means for transmitting a gate closing command to the motor when the amount of change in the detected position data detected by the position detector exceeds a predetermined value. . 2. An electric gate for opening and closing a gate by a motor, a control device for transmitting a gate control command to the motor, a closing position memory for recording the closing position data of the gate, and a gate of the gate. And a closing position recording processing unit that records the detected position data detected by the position detecting unit as closing position data in the closing position memory. Electric gate that is characterized. 3. An electric gate for opening and closing a gate by a motor, the controller transmitting a gate control command to the motor, an opening position memory for recording opening position data of the gate, and A position detection unit configured to detect the position of the gate as detection position data, and the control device records the detection position data detected by the position detection unit in the opening position memory as opening position data. An electric gate having a recording processing means. 4. An electric gate for opening and closing a gate by a motor, a control device for transmitting a gate control command to the motor, a closing position memory for recording closing position data of the gate, and a gate for the gate. The control device transmits a closing command for closing the gate of the motor until the closing position data becomes equal to the detected position data, and the processing of the closing command ends. An electric gate, characterized in that the motor is further provided with a closing guarantee processing means for transmitting a closing command to the motor for a predetermined time. 5. A motor current detection unit for detecting a current flowing through the motor is provided, and the control device controls the gate closing guarantee processing means when the motor current exceeds a dangerous value for a predetermined time or more. The electric gate according to claim 4, further comprising dangerous stop processing means for interrupting the gate closing processing and transmitting a stop command to the motor to stop the gate. 6. The electric gate according to claim 4, wherein the control device includes a closing position correction processing means for executing the closing position recording processing means after the processing of the closing guarantee processing means is completed. 7. An electric gate that opens and closes the gate with a motor, and is provided with a display panel, and the display panel is provided with an LED that indicates the operation status of the gate.