JP2003166377A - Automatic door sensor device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an automatic door sensor device which is low in cost, and exhibits a crime-preventive function. <P>SOLUTION: According to the automatic door sensor device, when a night- time switch 29 is turned on, a control section 24 is switched from an automatic door control mode to a crime preventive mode. Therefore, signals from main sensors 14, 14 are rendered invalid, and control of a motor drive section is stopped. In the crime preventive mode, when the control section 24 detects an invader in response to a signal from an auxiliary beam switch 19 arranged at an opening of an automatic door, it generates an alarm output and issues an alarm sound by means of a buzzer 32. <P>COPYRIGHT: (C)2003,JPO

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a sensor device for an automatic door.

[0002]

2. Description of the Related Art Conventionally, a sensor device for an automatic door is provided in an automatic door installed in an opening such as a front door of a building. In this automatic door sensor device, a main sensor is arranged above the opening, and when the main sensor detects that a person or an object approaches the automatic door, it controls the automatic door that receives a signal from the main sensor. A device directs the automatic door drive to open and drive the automatic door. The automatic door sensor device includes an auxiliary sensor having a light projector that emits a light beam that crosses the opening substantially horizontally, and a light receiver that receives the light emitted from the light projector. When detecting a person or an object existing in the opening, the control device instructs the drive device to keep the automatic door open.

A security device is provided on the automatic door, separately from the automatic door sensor device. This security device is provided on the automatic door, and detects a strong vibration of the automatic door, and a buzzer when a signal indicating that the automatic door is shocked is received from the vibration sensor. A crime prevention control device for generating an alarm sound.

When closing the opening of the automatic door, the sensor device for the automatic door is stopped and the power is turned off.
The opening is locked, and then the security device is turned on to activate the security function.

[0005]

However, the conventional automatic door sensor device is separate from the security device, and the automatic door sensor device and the security device are installed on the automatic door. There is a problem that the cost of the automatic door becomes relatively high.

Therefore, an object of the present invention is to provide an inexpensive automatic door sensor device having a crime prevention function.

[0007]

In order to achieve the above object, a sensor device for an automatic door according to the invention of claim 1 is a sensor for detecting a person or an object around an opening opened and closed by the automatic door, and the above sensor. When the person or the object is detected, the automatic door control mode for controlling the driving of the automatic door, and the crime prevention mode for issuing an alarm when the sensor detects the person or the object are provided, and the automatic door control mode and the crime prevention mode are provided. And a control means capable of selecting and.

According to another aspect of the present invention, there is provided an automatic door control mode in which the control means controls the driving of the automatic door when the sensor detects a person or an object around the opening. When the sensor detects a person or an object in the vicinity of the opening, a crime prevention mode for issuing an alarm is provided. Since the automatic door control mode and the crime prevention mode of the control means can be selected, the sensor and the control means can be used both for driving the automatic door and for crime prevention. Therefore,
A crime prevention function can be added to the automatic door sensor device with almost no increase in cost, and an automatic door sensor device having a drive control function and a crime prevention function can be provided at a relatively low cost.

A sensor device for an automatic door according to a second aspect of the present invention is the sensor device for an automatic door according to the first aspect,
The sensor is an auxiliary sensor that includes a light projector that emits a light beam that crosses the opening substantially horizontally and a light receiver that receives the light emitted from the light projector, and is an auxiliary sensor that detects a person or an object present in the opening. It has a feature.

According to another aspect of the present invention, the sensor is an auxiliary sensor including a light projector that emits a light beam that crosses the opening substantially horizontally and a light receiver that receives the light emitted from the light projector. Is. Therefore, in the crime prevention mode of the control means, an alarm is issued when the auxiliary sensor detects a person or an object, so that, for example, an intruder approaches the automatic door to illegally open the automatic door or opens the automatic door. If it is attempted to remove it, the intruder and the detached automatic door are reliably detected, so that the crime prevention function can be reliably and effectively performed.
In particular, the sensor is an auxiliary sensor that includes a light projector that emits a light beam that crosses the opening substantially horizontally, and a light receiver that receives the light emitted from the light projector. Instead of raising an alarm, the substantially horizontal ray of the auxiliary sensor is actually interrupted and the alarm is emitted only when an alarm is needed. Therefore, the sensor device for an automatic door will not malfunction if only a person approaches the automatic door. Further, even when a shutter or the like is attached in front of the automatic door, this automatic door sensor device can be used as it is.

An automatic door sensor device according to a third aspect of the present invention is the automatic door sensor device according to the first aspect.
The sensor is a main sensor for detecting a person or an object approaching the opening.

According to the automatic door sensor device of the present invention, since the sensor is a main sensor for detecting a person or an object approaching the opening, in the automatic door control mode of the control means, a signal from the main sensor is sent. Upon receiving, the automatic door can be opened and driven. On the other hand, in the crime prevention mode of the control means, when the main sensor detects a person or an object, an alarm can be issued. Therefore, for example, a person approaching the automatic door trying to open the automatic door illegally is detected, and the crime prevention is performed. It can play a function.

According to a fourth aspect of the present invention, there is provided a control means of a sensor device for an automatic door, which comprises a sensor for detecting a person or an object around an opening opened / closed by an automatic door, when the sensor detects the person or the object. , An automatic door control mode for controlling the drive of the automatic door, and a crime prevention mode for issuing an alarm when the sensor detects a person or an object, and a function for selecting the automatic door control mode and the crime prevention mode Let

According to the program of claim 4, the control means of the automatic door sensor device is provided with the automatic door control mode and the crime prevention mode, and the automatic door control mode and the crime prevention mode can be selected. Thus, the automatic door sensor device having the automatic door drive control function and the crime prevention function can be obtained by storing the above program in the control means of the automatic door sensor device including the conventional sensor. That is, the crime prevention function can be added to the existing automatic door sensor device at a low cost.

A storage medium according to a fifth aspect of the present invention stores the program according to the fourth aspect.

According to the storage medium of claim 5, the program stored in the storage medium is read by the control means of a sensor device for an automatic door equipped with a conventional sensor, for example, to execute the program. The door sensor device can be an automatic door sensor device having an automatic door drive control function and a crime prevention function.

[0017]

BEST MODE FOR CARRYING OUT THE INVENTION The present invention will be described in detail below with reference to the embodiments shown in the drawings.

FIG. 1A is a front view showing an automatic door provided with an automatic door sensor device according to an embodiment of the present invention, and FIG. 1B is a sectional view of the automatic door. Figure 1
(A) shows a state in which the front panel of the seamless 5 located above the opening provided with the automatic door is removed.

This automatic door has two sliding doors 1, 1 which are provided in an opening of a building and are driven in opposite directions.
This sliding door 1 is provided with two hoisting tools 2 and 2 at the upper end, respectively, and is hung from the rails 6 arranged in the seamless parts 5 via wheels 3 pivotally attached to the hoisting tool 2. It has been lowered. An engine device 7 for an automatic door is formed in the blind 5, and the engine device 7 includes two pulleys 8,
The belt 9 wound around 8 and the two pulleys 8 and 8
One of the two suspenders 2 and 2 provided in each of the sliding doors 1 and 1 is connected to the belt 9. At the lower end of the sliding door 1,
The steady rests 12 and 12 protruding downward are provided,
A guide rail 13 is provided at the lower end of the opening to guide the steady rest and prevent the sliding doors 1 and 1 from swinging at right angles to the opening / closing direction.

The automatic door sensor device provided in this automatic door is installed on the above-mentioned unsightly outer surface, that is, on the front side and the back side of the automatic door, so as to detect people and objects approaching the automatic door. It has two main sensors 14, 14 for detecting. Further, in this automatic door sensor device, a projector 17 that emits light in a substantially horizontal direction is provided on one end surface of the two fixed walls 15 and 15 which are fixed at positions where they overlap each other when the sliding doors 1 and 1 are fully opened. Prepare The fixed wall 15
On the other end face of the light receiver 17, a light receiver 18 for receiving the light from the light projector 17 is provided, and the light projector 17 and the light receiver 18 are:
The auxiliary light beam switch 19 as an auxiliary sensor is configured. The auxiliary light switch 19 is provided with the presence of the person or the object by intercepting a light beam that crosses the opening provided with the automatic door and reaches the light receiver 17 from the light projector 17 to the light receiver 18. To detect. Signals from the main sensor 14 and the auxiliary light switch 19 are received by a control device 21 arranged in the engine device 7,
The control device 21 changes the power supplied to the motor 11 based on the signal and the positions of the sliding doors 1 and 1.

FIG. 2 is a diagram showing the functional blocks of the above automatic door sensor device. As shown in FIG.
3, the control unit 24, the motor drive unit 25, the motor 11, the night switch 29, and the alarm output switch 31 are arranged in the automatic door engine device 7. The control unit 24 and the motor drive unit 25 combine the control unit 2
Make up one. The control unit 24 is formed by a central processing unit including a memory unit and a calculation unit (not shown). Further, as shown in FIG.
The AC power source 27
The electric power is supplied by and the signal is output to the control unit 24. The AC power supply 27 also supplies electric power to the power supply unit 23, and the power supply unit 23 supplies electric power to the control unit 24 and the motor drive 25. The control unit 2
Reference numeral 4 sends a command to a motor drive unit 25 that supplies drive power to the motor 11 based on signals from the main sensors 14 and 14 and the auxiliary light beam switch 19, and the rotation direction of the motor 11 and the start and The stop and speed are adjusted. In addition, the control unit 24 controls the motor drive unit 25 to the motor 11
Of the rotation pulse of the sliding door 1,1
The open / close position of the motor 11 is determined, and the rotation direction of the motor 11, start / stop, and speed are feedback-controlled.

The control unit 24 controls the night switch 29.
Is turned on, the alarm output switch 31 is turned on based on only the signal from the auxiliary light beam switch 19. When the alarm output switch 31 is turned on, the buzzer 32 emits an alarm sound.

The control unit 24 controls the night switch 29.
The automatic door control mode in which the switch is off and the crime prevention mode in which the night switch 29 is on are provided. The automatic door control mode and the crime prevention mode are selected by turning on / off the night switch 29.

The operation of the automatic door provided with the above-configured automatic door sensor device when the night switch 29 is off, that is, when the control unit 24 is in the automatic door control mode will be described below. First, when the 1 sliding doors 1 and 1 are closed, the main sensor 14 provided on the surface of the blind 5 detects the approach of a person who attempts to pass through the opening provided with the automatic door. This main sensor 14
The control unit 24 which has received the signal indicating the approach of the person from
Commands the motor drive unit 25 to drive the motor 11
By supplying a predetermined electric power to the motor, the motor rotates in a predetermined rotation direction and speed. As a result, the sliding doors 1, 1
Is driven in a direction indicated by arrows A and A at a predetermined speed to open. When the sliding doors 1, 1 open and reach the fully open position, the control unit 24 detects that the sliding doors 1, 1 have reached the fully open position by the rotation speed of the motor 11 received from the motor drive unit 25, and The motor drive unit is instructed to stop driving the sliding doors 1 and 1. The person passes through the opening opened when the sliding doors 1 and 1 are fully opened. At this time, the auxiliary light beam switch 19 detects that a light beam from the light projector 17 to the light receiver 18 is blocked by the passing person and a person is present in the opening. The control unit 24, which has received the signal from the auxiliary light beam switch 19 that has detected the presence of this person, instructs the motor drive 25 to supply a predetermined electric power to the motor 11 to keep the sliding door 1 fully open. When a person who has passed through the opening moves away from the opening and the detection of the person by the main sensor 14 disappears, a predetermined time after the detection of the person disappears, a command from the control section 24 causes the motor drive section 25 to move the motor 11 to the motor 11. Is supplied with a predetermined electric power, and the motor 1
1 rotates in a predetermined rotation direction and speed, and the sliding door 1,
1 closes and operates.

The operation of the automatic door sensor device and the automatic door when the night switch 29 is on, that is, when the control section 24 is in the crime prevention mode, will be described below.

When the building provided with the automatic door is closed at night, the sliding doors 1 and 1 are closed and locked, and the night switch 29 is turned on. Then, the control unit 24
Enters the crime prevention mode, the signal from the main sensor 14 is invalidated, and only the signal from the auxiliary light beam switch 19 is valid. On the other hand, the signal from the control unit 24 to the motor drive unit 25 is stopped. Thereafter, a shutter (not shown) arranged outside the automatic door is lowered and the shutter is locked. At this time, even if the main sensor 14 that detects the approach of a person outside the automatic door detects the shutter, the signal from the main sensor 14 is invalid, so the control unit 24 causes the sliding door 1 to operate. Open and do not drive.

It is assumed that an intruder enters through the opening provided with the automatic door when the automatic door sensor device is in the crime prevention mode. That is, an intruder breaks the shutter that is lowered outside the automatic door, and attaches the steady rest 12 at the lower end of the sliding door of the automatic door to the guide rail 1.
It is attempted to open the automatic door illegally by removing it from No. 3 and creating a gap between the sliding door 1 and the fixed wall 15. At this time, the light beam emitted from the projector 17 provided on the end surface of the one fixed wall 15 toward the light receiver 18 provided on the end surface of the other fixed wall 15 is the sliding door 1 that has been removed.
Alternatively, it is blocked by an intruder who attempts to enter through the gap between the removed sliding door 1 and the fixed wall 15. Then, the auxiliary light beam switch 19 detects the abnormality of the automatic door. The control unit 24, which has received the signal from the auxiliary light beam switch 19, turns on the alarm output switch 31,
This causes the buzzer 32 to emit a warning sound. The buzzer 32 continues to emit a warning sound for a predetermined time.

In the automatic door sensor device, the control unit 24 can select the crime prevention mode or the automatic door control mode by turning on / off the night switch 29. In the crime prevention mode, the auxiliary light beam switch 19 is used. Thus, it is possible to detect an opening abnormality such as an intruder's intrusion. Therefore, unlike the conventional case, it is not necessary to separately install the automatic door sensor device and the security device in the automatic door, so that the automatic door drive control function and the security function can be provided at low cost.

In the crime prevention mode of the control section 24,
Only when the signals from the main sensors 14 and 14 become invalid and only the signal from the auxiliary beam switch 19 becomes valid, and a person or an object is detected in the opening traversed by the beam of the auxiliary beam switch 19. , An alarm is issued. Therefore, only the entry of an intruder from the opening is surely detected, and even a person who has simply passed in front of the automatic door is detected, for example, when an alarm is issued based on a signal from the main sensor 14. False alarms are avoided.
Further, since the signal from the main sensor 14 is invalid,
A shutter or the like can be arranged near the main sensor 14 on the outside of the building from the position where the automatic door is arranged.

The automatic door sensor device, when the signals from all the sensors of the main sensor 14 and the auxiliary light beam switch 19 are invalidated for a predetermined time after the night switch 29 is turned on, the automatic door sensor 29 automatically operates. It is easy to lock an automatic door provided with a door sensor device. That is, after turning off the automatic door control mode of the control unit 24 of the automatic door sensor device, the automatic door is locked while all the functions of the main sensor and the auxiliary beam switch 19 are stopped, The shutter on the outside of this automatic door is lowered to close the door. In this way, the operation of starting the crime prevention operation after the time when the sensor is disabled after turning on the night switch 29 is realized by the relay circuit as shown in FIG.

The relay circuit of FIG. 3 has power supply lines 38, 3
A normally closed contact 41 and a timer coil 42 are connected between the terminals 9. A normally open contact 43 of the relay and a timer coil 44 are connected between the power supply lines 38 and 39. Further, the timed operation contact 45 of the timer, the normally closed contact 46 of the relay, the auxiliary beam switch 19, and the relay coil 48 are connected between the power supply lines 38 and 39. The power line 38 and the auxiliary light switch 19
A relay contact 51 and a timer timed return contact 52 are connected between the relay coil 48 and the relay coil 48. The relay contact 51 and the timer timed return contact 52 form a self-holding circuit for the relay coil 48. Further, the relay coil 48 drives the normally open contact 54 leading to the alarm output.

The operation of the circuit of FIG. 3 will be described with reference to the time chart of FIG. The time chart of FIG.
The on / off states of the relay contact 46, the timer timed operation contact 45, the auxiliary light switch 19, the relay coil 48, the timer timed return contact 52, and the alarm output are shown according to the passage of time on the horizontal axis.

First, the night switch 29 of the automatic door sensor device is turned on, and the automatic door control mode of the automatic door sensor device ends. The normally closed contacts 41 and 46 are released from the drive in conjunction with the night switch 29, and the normally closed contacts 41 and 46 are turned on. When the normally-closed contact 41 is turned on, the timer 42 is activated to start timing, and after a predetermined time, the timed operation contact 45 is turned on. A predetermined time period from the operation of the timer 42 to the turning on of the timed operation contact 45 is an invalid time period in which the function of the auxiliary light beam switch 19 is stopped. After the timed operation contact 45 of the timer is turned on, when the intruder intrudes through the opening and blocks the light beam that crosses this opening, the auxiliary light beam switch 19 is turned on. As a result, the relay coil 48 is energized and the normally open contacts 43, 51, 54 are
Is turned on. When the normally open contact 43 is turned on, the timer 4
When the normally open contact 51 is turned on, the self-holding action of the relay 48 is exerted, and when the normally open contact 54 is turned on, the alarm output is turned on and the alarm output is connected. The buzzer sounds an alarm. Above timer 4
After a predetermined time elapses after 4 is activated, the timed return contact is driven and the power supply to the relay coil 48 is cut off, whereby the alarm output is turned off and the alarm sound of the buzzer is stopped.

By the relay circuit, when the automatic door sensor device is switched from the automatic door control mode to the crime prevention mode, the invalid time of the sensor can be generated for a predetermined time. As a result, the automatic door can be locked without causing a malfunction of the sensor.

In the above embodiment, a program for performing the same control as the relay circuit of FIG. 3 may be stored in the control unit 24 of FIG. 2 and executed. That is, the control unit 24
In the storage means (not shown), the automatic door sensor device has the automatic door control mode and the crime prevention mode, and a program for obtaining the invalid time of the sensor for a predetermined time when the automatic door control mode and the crime prevention mode are switched. May be stored and this program may be executed by the calculation means of the control unit 24.

It is also possible to form a storage medium in which the above program is stored and to read this storage medium into the control unit of the existing automatic door having only the automatic door control function. As a result, the existing automatic door can be the automatic door of the present invention having the automatic door control mode and the crime prevention mode. At this time, in the control unit of the existing automatic door,
The automatic door sensor device of the present invention can be obtained at low cost simply by connecting a buzzer or the like.

In the above embodiment, in the crime prevention mode,
Although the crime prevention operation is performed by invalidating the signal from the main sensor 14 and receiving only the auxiliary light beam switch 19 signal, the crime prevention operation may be performed by receiving the signal from the main sensor 14. However, if a shutter or the like is provided outside the automatic door, or if the automatic door is installed facing a relatively crowded place, it is better to invalidate the signal from the main sensor 14 in order to prevent the crime prevention operation. There is no malfunction and a reliable security function can be obtained.

In the above embodiment, the warning may be given by a red rotating light other than the buzzer, or the warning may be given by using sound or light. Furthermore, the fact that an intruder has been detected may be notified to a position distant from the place where the automatic door is provided.

[0039]

As is apparent from the above, according to the automatic door sensor device of the first aspect of the present invention, the sensor for detecting a person or an object around the opening opened and closed by the automatic door, and the sensor are human. Alternatively, when an object is detected, an automatic door control mode for controlling the drive of the automatic door, and a crime prevention mode for issuing an alarm when the sensor detects a person or an object are provided, and the automatic door control mode and the crime prevention mode are provided. Since the above-mentioned sensor and control means can be used both for driving the automatic door and for crime prevention because it has a control means that can be selected, the crime prevention function can be added to the automatic door sensor device with almost no increase in cost. Therefore, the automatic door sensor device having the drive control function and the crime prevention function can be formed at a relatively low cost.

According to the automatic door sensor device of the second aspect of the present invention, in the automatic door sensor device of the first aspect, the sensor emits a light beam that crosses the opening substantially horizontally, and the projector. A light receiving device for receiving the light emitted from the projector, and since it is an auxiliary sensor for detecting a person or an object existing in the opening, an intruder approaching the automatic door trying to open the automatic door illegally, or this An automatic door or the like that is being removed by an intruder can be reliably detected without a malfunction by simply detecting a person or the like passing by in front of the automatic door, and a crime prevention function can be reliably and effectively obtained.
Further, even when a shutter or the like is attached in front of the automatic door, the automatic door sensor device can be used as it is.

According to the automatic door sensor device of the third aspect of the invention, in the automatic door sensor device of the first aspect, the sensor is a main sensor for detecting a person or an object approaching the opening. For example, a person approaching the automatic door trying to open the automatic door illegally is detected, and the crime prevention function is obtained.

According to the program of the invention of claim 4, the control means of the automatic door sensor device is provided with a sensor for detecting a person or an object around an opening opened and closed by the automatic door. When it is detected, it is provided with an automatic door control mode for controlling the drive of the automatic door and a crime prevention mode for issuing an alarm when the sensor detects a person or an object so that the automatic door control mode and the crime prevention mode can be selected. Since the above-mentioned program is stored in the control means of the automatic door sensor device including the conventional sensor, the existing automatic door sensor device is automatically operated with the automatic door drive control function and the crime prevention function. It can be a door sensor device.

According to the storage medium of the invention of claim 5, since the program of claim 4 is stored, the existing automatic door sensor device can be easily provided with an automatic door drive control function and a crime prevention function. A sensor device for an automatic door having

[Brief description of drawings]

FIG. 1 (a) is a front view showing an automatic door provided with an automatic door sensor device according to an embodiment of the present invention, and FIG. 1 (b) is a sectional view of the automatic door.

FIG. 2 is a diagram showing functional blocks of a sensor device for an automatic door according to the present invention.

FIG. 3 is a diagram showing a relay circuit that realizes an operation in which a crime prevention operation is started after a time period in which a sensor is disabled after a night switch 29 is turned on.

FIG. 4 is a time chart showing the operation of the circuit of FIG.

[Explanation of symbols]

7 Engine equipment 11 motor 14 main sensor 19 Auxiliary light switch 23 Power Supply 24 Control unit 25 Motor drive section 27 AC power supply 29 Night switch 31 Alarm output 32 buzzer

Continued front page    F-term (reference) 2E052 AA02 BA06 CA06 DA04 DB04                       EA11 EB01 GA06 GB01 GC01                       GD03 GD07 KA12 KA15 KA27                 5C084 AA02 AA07 AA15 BB04 BB21                       CC17 DD32 DD52 EE02 EE10                       GG19 HH03

Claims (5)

[Claims] 1. A sensor for detecting a person or an object around an opening opened / closed by an automatic door, an automatic door control mode for controlling the driving of the automatic door when the sensor detects the person or the object, and the sensor. When a person or an object is detected, the sensor device for an automatic door is provided with a crime prevention mode for issuing an alarm, and a control means capable of selecting the automatic door control mode and the crime prevention mode. . 2. The sensor device for an automatic door according to claim 1, wherein the sensor includes a light projector that emits a light beam that crosses the opening substantially horizontally, and a light receiver that receives the light emitted from the light projector. A sensor device for an automatic door, which is an auxiliary sensor for detecting a person or an object existing in the opening. 3. The sensor device for an automatic door according to claim 1, wherein the sensor is a main sensor for detecting a person or an object approaching the opening. 4. A control means of a sensor device for an automatic door comprising a sensor for detecting a person or an object around an opening opened / closed by the automatic door, and driving the automatic door when the sensor detects the person or the object. A program having an automatic door control mode for controlling and a crime prevention mode for issuing an alarm when the sensor detects a person or an object, and causing the automatic door control mode and the crime prevention mode to be selected. 5. A storage medium storing the program according to claim 4.