JPH07279507A - Control system for access door - Google Patents

Abstract

PURPOSE:To facilitate the setting of the effective operating range of a control device by controlling a judgment circuit and transmission/receiving operation by a power control part and a detection sensor, and locking and unlocking the signal transmission of the transmission/receiving part by the response signal of a portable key member so as to adopt a battery system. CONSTITUTION:A judgment circuit 14 and a switchover device T such as an auto-door sensor to control the operation of a transmission/receiving part 15 are installed between the judgment circuit 14 and transmission/receiving part 15 of a control device C and a power supply 2. In this case, only when a person who locks and unlocks a door moves closely to the switchover device T, the judgment circuit 14 and the transmission/receiving part 15 are operated. On the other hand, a portable key member 5b is positioned within a limited distance from the control device C. By this, the setting of an effective operating range of the transmission/receiving part 15 can be facilitated. Also, only when a person who has a will to lock and unlock the door operates the control device C, transmission of radio wave, etc., can be made. Thus the control device C can be operated surely with a weak output.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention uses a portable key member that is not equipped with a power source to wirelessly (hereinafter sometimes referred to as cordless) control the locking / unlocking of an electric lock or the opening / closing of an automatic door. More specifically, the present invention relates to a control system for an entrance / exit door that consumes less power and can easily set an effective operating range for locking / unlocking or opening / closing the door with a portable key member.

[0002]

2. Description of the Related Art FIG. 4 is an explanatory view showing a conventional arrangement example of an electric lock. An electric lock 1 is provided on a part of a door D so as to be locked or unlocked, and the electric lock 1 is a controller. The controller 3 is electrically connected to the power source 2, and is also connected to the operation plate 4 for operating the locking or unlocking of the electric lock 1. That is, by manually operating the switch provided on the operation plate 4, the electric lock 1 is remotely locked or unlocked. The operation plate 4 is mainly placed indoors, and is a door D at the entrance when a visitor arrives.
Used to lock or unlock without walking directly to. In FIG. 4, reference numeral 30 is a hinge, and this hinge 3
0 is pivotally attached to a door frame (not shown) and the upper and lower portions of one end of the door D, and the door D is rotated about the hinge 30 as a rotation center. 33 is a lock rod.

Further, in recent years, as means for locking or unlocking an electric lock from the outside, a portable key member for transmitting or reflecting a predetermined signal is carried around, and an electric power is supplied via a control device provided on the fixed side by such a portable key member. Those that operate locks have been put to practical use. FIG. 5 is a structural explanatory view of a conventional radio wave type control device C that performs such an operation cordlessly. The control device C includes an electric lock control circuit 13, a determination circuit 14, a storage circuit 16, a setting unit 17, and a transmission / reception unit 15. The electric lock control circuit 13 is connected to the electric lock 1, and the electric lock control circuit 13, Judgment circuit 14, storage circuit 16, setting unit 1
7 and the transmitter / receiver 15 are connected to the power supply 2.

That is, when a radio wave signal S1 having a predetermined frequency is transmitted from the transmitter / receiver 15 and the portable key member 5a is present within the effective operating range, the portable key member 5a is excited to generate a response signal S2 (radio wave). , Infrared rays, ultrasonic waves, light rays, etc. are used to modulate digital signals, pulse signals, etc. and use them as identification codes). And the transceiver 1
When the response signal S2 is received at 5 and is sent to the determination circuit 14, the response signal S2 is compared with the working storage memory Sa stored in the storage circuit 16 in advance, and when the response signal S2 matches the working storage memory Sa. , Sends an actuation signal So to the electric lock control circuit 13, thereby causing the electric lock 1 to be unlocked (or locked). The setting unit 17 is used to store the operation storage memory Sa in the storage circuit 16. Since the portable key member 5a does not use a power source such as a battery, the inconvenience that it does not operate when necessary does not occur.

In the example of FIG. 5, signals S1 and S2 are exchanged between the control device C and the portable key member 5a by using radio waves, but in addition to this, ultrasonic waves, visible rays, infrared rays, and laser rays are also shown. There is also a system in which an identification code set in advance on the portable key member is received as a reflected signal by transmitting such a message.

However, in the conventional wireless control device C as shown in FIG. 5, unless electric waves are transmitted at all times, when the portable key member 5a approaches, the electric lock is unlocked or locked. There is a problem in that the entire control device C including the transmission / reception unit 15 and the determination circuit 14 cannot be operated, and the power consumption is increased. Therefore, the cordless operation-controlled electric lock cannot be installed in a place where a commercial power source cannot be used.

Further, in the electric lock as described above, it is difficult to set the effective distance range in which signals can be reliably transmitted and received using radio waves, and for example, the portable key member 5a is far away from the control device C. Even if you pass through the place, you may unlock without having the intention of entering the room, or if you weaken the radio wave, it may not unlock when necessary. Alternatively, since excessive radio waves are constantly emitted from the control device C, there is a fear that electric devices such as radios and televisions in the vicinity may be adversely affected.

As a control system for controlling the opening / closing of the door of the automatic door, a door opening / closing control circuit for controlling the opening / closing of the door of the automatic door is connected instead of the electric lock control circuit of the reference numeral 13 in FIG. It is also known that an automatic door actuating device is connected instead of the lock and the other circuit is configured as shown in FIG.

In the case of this automatic door opening / closing control system as well, as in the case of the electric lock described above, it is necessary to constantly transmit electric waves and the like to keep the entire control circuit energized, which consumes less power. There were problems such as increasing the number.
Also in this door opening / closing control system, similarly to the electric lock described above, it is difficult to set an effective distance range in which signals can be reliably transmitted and received using radio waves or the like. For example, the portable key member 5a is a control device. If you pass a place far away from C, the door will open even if you have no intention of entering the room, or if you weaken the radio wave, the door will not open. Alternatively, since excessive radio waves are constantly emitted from the control device C, there is a fear that electric devices such as radios and televisions in the vicinity may be adversely affected.

[0010]

SUMMARY OF THE INVENTION Therefore, an object of the present invention is to reduce the power consumption and enable the use of a battery type in a control system for a doorway door that performs cordless operation control, and further to a portable key member. An object of the present invention is to provide a control system for an entrance / exit door that can set the effective operating range of the control device reliably and easily.

[0011]

According to the present invention, which has achieved the above object, a control device is provided with at least a determination circuit and a transmission / reception unit, and a locking / unlocking or door opening / closing operation is performed by a response signal from a portable key member to the transmission of the transmission / reception unit. In a door door control system for wirelessly controlling opening and closing, a switching means for controlling the operation or non-operation of the determination circuit and the transmission / reception unit is provided between the determination circuit and the transmission / reception unit and the power supply. And

Further, in the present invention, the switching means is composed of a detection sensor for detecting the approach of an object and a power supply control section, or a switch.

[0013]

Function: Between the judgment circuit and the transmission / reception section of the control device and the power supply, a switching means for controlling the operation or non-operation of the judgment circuit and the transmission / reception section is provided so that the judgment circuit and the transmission / reception section are always energized. It is no longer necessary to keep transmitting radio waves, and only when a person who has the intention of locking or unlocking (or opening or closing the door such as the automatic door) approaches the switching means, the above circuit etc. Can operate. This has made it possible to reduce the power consumed by the decision circuit and the transmitter / receiver as compared to conventional products. For this reason, the control device can also be of a battery type.

On the other hand, since the control device operates only when a person who has the intention of locking or unlocking (or opening / closing the door such as an automatic door) approaches the switching means, the portable key member functions as the control device. On the other hand, since it exists within the limited distance range, it becomes possible to easily set the operation effective range in the transmission / reception unit.

Further, the switching means is constituted by an existing detection sensor such as a sensor of an automatic door for detecting the approach of an object which does not require security, and an existing power source control unit. (Or a part of it) can detect that it is approaching the control device and can automatically operate the above-mentioned judgment circuit or transceiver, and has the intention of locking or unlocking (or opening or closing the door such as an automatic door). Only when a person operates the control device, radio waves are transmitted, so that the control device can operate reliably with a weak output.

[0016]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS FIG. 1 is a structural explanatory view of a control device C used in an electric lock of the present invention. The control device C is exemplified by a radio wave type similar to the example shown in FIG. The characteristic configuration of the present invention, which is different from the example of FIG. 5, is a power supply 2 and a determination circuit 1.
4 and the transmission / reception unit 5 are provided with a power supply control unit 7 as a switching unit T, and the detection sensor 6 as the switching unit T is connected to the power supply control unit 7. The detection sensor 6 is preferably arranged near the antenna (or the light emitting member or the like) of the transmitting / receiving unit 15. The transmitter / receiver 15 is similar to the conventional example.
To transmit a radio signal S3, a response signal S4 excited in the portable key member 5b by the radio signal S3 is received by the transmission / reception unit 15, and further the response signal S4 is sent to the determination circuit 14. Then, the response signal S4 sent to the determination circuit 14 is collated with the working storage memory Sa stored in the storage circuit 16 in advance, and when the working storage memory Sa and the response signal S4 match, the electric lock control circuit An operation signal So is sent to 13, and the electric lock 1 is unlocked (or locked) by the operation signal So.

The electric lock control circuit 13 and the storage circuit 16
Also, the setting unit 17 is directly connected to the power source 2 as in the example of FIG.

The detection sensor 6 uses an optical sensor, an infrared sensor, an ultrasonic sensor, a magnetic sensor or the like. FIG. 2 shows a circuit example of a power supply control unit 7 using a light emitting diode 11 and a phototransistor 12 as the detection sensor 6, in which light emitted from the light emitting diode 11 is an object (for example, a part of a human body) B.
When reflected in the phototransistor 12 and enters the phototransistor 12, a current flows through the phototransistor 12, the drive circuit amplifies the contact, and the contact of the power supply operating relay 8 operates to energize the determination circuit 14 and the transmission / reception unit 15 shown in FIG. To operate.

That is, only when a person approaches the detection sensor 6, the detection signal Sd is emitted to operate the determination circuit 14 and the transmission / reception unit 15 via the power supply control unit 7, and the transmission / reception unit 15 transmits the radio wave signal S3. While transmitting, the presence / absence of the portable key member 5b is determined, and the response signal S of the radio wave (infrared ray, ultrasonic wave, light beam, etc.) transmitted from the portable key member 5b is transmitted.
4 (identification code such as pulse signal or digital signal). The operation time of the determination circuit 14 and the transmission / reception unit 15 may be configured to continuously operate while the object B is in front of the detection sensor 6, or a timer circuit (not shown) may be used. Then, it may be configured to operate for a set time and automatically stop.

Therefore, the determination circuit 14 and the transmission / reception unit 15
Since it automatically operates only when a person approaches it or when a switch described later is pressed, it consumes less power, can be used for a long time even with a battery, and the frequency of battery replacement is low, As shown in FIG. 3, a compact electric lock incorporating a battery 31 may be used. In FIG. 3, reference numeral 32 is an operation member such as a laver handle, and 33 is a lock rod.

Further, the setting of the effective distance range in which the transmitting / receiving unit 15 can surely transmit to the portable key member 5b and receive the response signal from the portable key member 5b is set in accordance with the object detection distance of the detection sensor 6. Therefore, it is possible to reliably prevent the malfunction. Further, the electric wave or the like transmitted from the control device C has only to reach a limited effective range, and the transmission time is also limited, so that it hardly affects other electric devices or the like.

On the other hand, the switching means T composed of the power source control section 7 and the detection sensor 6 is an ON-OFF switch,
Alternatively, the switch may be replaced with a combination of a relay circuit or a mechanical relay, and the detection sensor 6 may be replaced with an ON-OFF switch. That is, a push button type or touch type ON-OFF switch provided between the power source and the determination circuit 14 is directly operated by a finger, and a person carrying a portable key member approaches the control device to turn on the switch. The portable key member is used so as to be close to the transmitting / receiving unit of the control device. As a result, the distance between the control device and the portable key member is limited, so that the same effect as using the detection sensor 6 can be obtained. Further, it is possible to completely eliminate the malfunction of the control device. Furthermore, if the switch is configured to turn on when the opening / closing door or the operation member of the electric lock (knob, lever handle, etc.) is slightly rotated, the judgment circuit and the receiver / transmitter are activated only when the intention is to open the door. (See FIG. 3).

Although the radio type control device is shown in the above embodiment, the present invention is not limited to this, and laser beams, infrared rays, ultrasonic waves, visible rays, etc. are emitted from the transmitting / receiving part and set in advance on the portable key member. A method of receiving the identification code as a reflected signal (corresponding to the response signal) may be used.

The target to which the electric lock 1 is applied is not limited to the doors for general households and the doorways for condominiums shown in FIG.
It is applied to collective posts (in which multiple posts are lined up) arranged in an apartment house or a multi-tenant building, a safe deposit box, a locker, etc., and one electric lock corresponds to one control device or plural It can be applied to any of the electric locks in which one control device is associated.

The portable key member is not limited to the one shown in the figure, and may be a card or the like, and its form is arbitrary.

Further, in the embodiment shown in FIG. 1, the switching circuit T turns on / off the determination circuit 14 and the transmission / reception section 15.
Although an example of controlling is shown, other electric lock control circuit 1
3, any one or all of the memory circuit 16 and the setting unit 17,
The determination circuit 14 and the transmission / reception unit 15 may be ON / OFF controlled.

[0027]

Since the present invention is constituted as described above, the constitution of claim 1 or 2 can reduce the power consumption as compared with the conventional product, and even if the battery type is adopted. It became possible to use it for a long time. Further, since the control device does not operate unless a person approaches the switching means, the effective range for operating the portable key member can be limited according to the proximity range of the person, and the effective range of the control device (transmission / reception range of radio waves, etc.)
It became easy to set up.

Further, according to the structure of claim 3, the judgment circuit, the transmission / reception unit and the like can be automatically operated and the power consumption can be reduced to the minimum. .

Further, according to the structure of claim 4, the control is performed because the electric wave is transmitted and received only when the person who has the intention of locking or unlocking (or opening and closing the door such as the automatic door) operates the control device. The device no longer causes malfunctions.

[Brief description of drawings]

FIG. 1 is a configuration explanatory view showing an embodiment of a control device in an electric lock of the present invention.

FIG. 2 is a circuit diagram showing an embodiment of a detection sensor in the electric lock of the present invention.

FIG. 3 is a schematic explanatory diagram when the present invention is applied to an electric lock incorporating a battery.

FIG. 4 is an explanatory diagram showing a conventional arrangement example of an electric lock.

FIG. 5 is a configuration explanatory view showing an example of a conventional cordless control device.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Electric lock 2 Power supply 3 Controller 5a, 5b Portable key member 6 Detection sensor 7 Power supply control section 8 Power supply operation relay 14 Judgment circuit 15 Transmitter / receiver section C Control device S2, S4 Response signal T switching means

Claims (4)

[Claims] 1. A control system for an entrance / exit door, comprising at least a determination circuit and a transmission / reception unit in a control device, and wirelessly controlling locking or unlocking by a response signal of a portable key member to the transmission of the transmission / reception unit. A control system for an entrance / exit door, characterized in that switching means for controlling the operation or non-operation of the determination circuit and the transmission / reception unit is interposed between the circuit and the transmission / reception unit and the power supply. 2. A control system for an entrance / exit door, wherein the control device includes at least a determination circuit and a transmission / reception unit, and the door opening / closing is controlled wirelessly by a response signal of a portable key member to the transmission of the transmission / reception unit. A control system for an entrance / exit door, characterized in that a determination circuit and a switching means for controlling activation / deactivation of the transmission / reception unit are interposed between the transmission / reception unit and the power supply. 3. The door door control system according to claim 1, wherein the switching means includes a detection sensor for detecting the proximity of an object and a power supply control unit. 4. The doorway door control system according to claim 1, wherein the switching means is a switch.