JP2009167738A - Door lock system - Google Patents

Abstract

An object of the present invention is to reduce the possibility that a person will be locked out of the room.
A mobile body 1 that transmits a response signal including identification information, a memory 9 that stores collation information for collating the identification information included in the response signal, and the number of persons existing near the door are detected. Since the number of persons detected by the presence sensor 11 and the number of identification information matching the verification information are not the same number, the notification means 12 notifies the notification sensor 12 so that a plurality of persons are detected. Even when a person goes out at the same time, a person who does not carry the mobile body 1 corresponding to the key can be detected, and a person who does not carry the mobile body 1 is notified to carry the mobile body 1 Thus, it is possible to reduce the possibility that the person is locked out of the room.
[Selection] Figure 1

Description

  The present invention relates to a door lock system for reducing the possibility of being locked out due to forgetting to carry a key.

  In recent years, a number of door lock systems have been devised to prevent the user from forgetting to carry a key when going out and being locked out of the room.

  As such a door lock system, the door lock system of the following patent document 1 is mentioned, for example. Hereinafter, the door lock system of Patent Document 1 will be described with reference to FIG. FIG. 3 is a block circuit diagram of the door lock system of Patent Document 1.

  As shown in FIG. 3, the door lock system described in Patent Document 1 detects a weak power transmitter 102 that constantly transmits identification information a stored in the first memory 101 and that the door is opened and closed. It has a detector 103 and a receiver 105 having an antenna 104 having directivity in the outdoor direction and receiving the identification information a.

  In this door lock system, the detector 103 detects that the door is closed, and the identification information a received by the receiver 105 is stored in the second memory 106 by the identification information b and the identification information matching means 107. The alarm device 109 is operated under the control of the control signal generating means 108 when they are collated and they do not match.

That is, in the door lock system described in Patent Document 1, the alarm device 109 is activated when a person goes outside without carrying the weak power transmitter 102 corresponding to the key, and the weak power transmitter 102 is It became the structure which alert | reports that it is not carrying. As a result, it is intended to prevent the weak power transmitter 102 from being left outside due to misplacement.
Japanese Patent Laid-Open No. 4-155080

  However, in the above door lock system, for example, when a plurality of persons go out of the room at the same time, some of these persons may be locked out of the room.

  That is, even if there is a person who does not carry the weak power transmitter 102 among these plural persons, if any one of the other persons carries the weak power transmitter 102, the alarm Since the device 109 does not operate, a person who has gone out of the room without carrying the weak power transmitter 102 may not be aware that he / she does not have means for entering the room. is there.

  And the person who goes out of the room without noticing that he does not have the means to enter the room is not the same person who carries the weak power transmitter 102 when he tries to enter the room again. In some cases, it was locked out of the room.

  Accordingly, an object of the present invention is to reduce the possibility of occurrence of lockout.

  In order to achieve this object, the door lock system of the present invention includes a signal transmission / reception means for transmitting / receiving an activation signal, and a response signal including identification information when the activation signal transmitted from the signal transmission / reception means is received. A mobile body having a function of transmitting a signal to the signal transmission / reception means and a predetermined door unlocking / locking function, and a memory preliminarily storing verification information to be verified with the identification information included in the response signal received by the signal transmission / reception means; A human sensor that detects the number of persons present near the door, and a notification that is notified when the number of persons detected by the human sensor is not equal to the number of identification information that matches the verification information. Means.

  With this configuration, the present invention can reduce the possibility of occurrence of lockout.

  This is provided with a human sensor for detecting the number of people present near the door, and when the number of people detected by the human sensor is not the same as the number of identification information matching the verification information, the notification means It is because it was set as the structure which alert | reports by.

  That is, in the door lock system of the present invention, even if a plurality of persons go out of the room at the same time, the plurality of persons include a person who does not carry a mobile object corresponding to the door key. Since the number of persons detected by the human sensor is different from the number of identification information that matches the verification information, the notification means operates.

  As a result, it is possible to make a person who does not carry the moving body notice that he / she does not carry the moving body, and to reduce the possibility of being locked out of the room.

  Hereinafter, the configuration of the present embodiment will be described with reference to the drawings.

  As shown in FIG. 1, the door lock system of this embodiment is comprised by the mobile body 1 which has a function as a key of the door of buildings, such as a house, and the main-body part 2 attached to this building. The moving body 1 corresponds to a weak power transmitter 102 of a conventional door lock system.

  The mobile body 1 includes a mobile body receiver 3 and a mobile body transmitter 4. When the mobile body receiver 3 receives an activation signal transmitted from the main body 2, the mobile body transmitter 4 A response signal is sent back to the main unit 2. This response signal includes identification information, and the operation of each device of the main body is controlled based on this identification information as will be described later. The moving body 1 has functions of unlocking and locking a predetermined door.

  A signal transmitting / receiving means 5 is provided in the main body 2. The signal transmission / reception means 5 includes a transmission unit 6 and a reception unit 7, and the activation signal described above is transmitted from the transmission unit 6 as a signal in the vicinity of 125 kHz. Furthermore, the reception unit 7 has a function of receiving a response signal transmitted from the mobile body transmission unit 4 when the mobile body reception unit 3 receives the activation signal. The response signal is a signal near 315 MHz.

  The signal transmission / reception means 5 is connected to the control device 8, and the identification information included in the response signal received by the reception unit 7 of the signal transmission / reception means 5 is output from the signal transmission / reception means 5 to the control device 8. And the control apparatus 8 compares the collation information previously stored in the memory 9 with identification information, and identifies whether these match.

  A human sensor 11 is connected to the control device 8. The human sensor 11 is a sensor that detects the presence of a person near the door, and detects the presence of the person by detecting the body temperature of the human body with infrared rays. Furthermore, this human sensor 11 can scan by combining an optical lens and an actuator, and can grasp a plurality of persons. That is, according to the human sensor 11, the number of persons existing near the door can be detected. In the present embodiment, the human sensor 11 has a configuration using infrared rays, but is not limited thereto, and any other configuration may be used as long as the number of persons near the door can be grasped. May be.

  When the control device 8 determines that the number of persons detected by the human sensor 11 is not the same as the number of identification information that matches the verification information, the control device 8 outputs a notification signal to the notification means 12. This notification means 12 is provided outdoors near the door, and when a notification signal is input, a sound for calling attention is reproduced. This sound may be an alarm sound using a mechanical sound, or may be a synthesized sound such as “Do you have a key?”.

  However, in the time zone when it is considered that it is troublesome for neighboring houses to reproduce the sound for notification, such as at night, the notification means 12 does not perform notification by sound but performs notification by light. For this reason, when the time management unit 13 recognizes that the time has reached a predetermined time zone set in advance, the control device 8 outputs a notification means change signal to the notification means 12, and the notification method is changed from voice. Change to light. As a result, in a predetermined time zone, notification is made by causing a light provided near the door to emit light.

  The request switch 14 is used when, for example, a person who does not have any trouble even if he / she goes out without carrying the mobile body 1 is used. For example, in the case where a plurality of persons detected by the human sensor 11 includes a person such as a customer who does not have a problem that the mobile body 1 is not held, the number of persons detected by the human sensor 11 Since the number of pieces of identification information that matches the collation information is not the same, the notification means 12 notifies the user, but in this case, the notification of the notification means 12 may be stopped by operating the request switch 14. it can.

  Moreover, the door opening / closing detection means 15 detects the opening / closing state of the door. Similarly to other devices, the door opening / closing detection means 15 is connected to the control device 8. As will be described later, when the door opening / closing detection means 15 detects a change in the state of the door, the operation of the human sensor 11 is performed. Start.

  The operation of each device in the present embodiment described above will be described in detail with reference to the flowchart of FIG.

  First, the door lock system of the present embodiment shown in the flowchart of FIG. 2 is set to an initial state when the power is turned on and the door opening / closing detection means 15 detects that the door is in a closed state. Start (start). When the door opening / closing detection means 15 determines that the door opening / closing state has changed from a closed state to an open state (YES in S1), detection by the human sensor 11 is started.

  On the other hand, when the door open / close detection means 15 does not detect that the door open / close state has changed to the open state and determines that the door is closed (NO in S1), the door open / close detection means 15 The detection operation of the open / close state of is continued.

  Next, a human sensor 11 detects a person passing near the door of the building such as a house from the inside to the outside of the building (S2). At this time, the human sensor 11 can grasp the number of persons present near the door as described above.

  Next, when a starting signal is output from the transmitting unit 6 of the signal transmitting / receiving means 5 to the moving body 1 having a door opening / closing function, and the moving body receiving unit 3 of the moving body 1 receives this starting signal, the moving body transmitting unit 4 A response signal including identification information is output to the receiving unit 7. Then, the control device 8 compares the identification information included in the response signal with the verification information registered in the memory 9 in advance, and detects how many identification information matches the verification information. Here, since one piece of identification information is given to each moving body 1, the number of pieces of identification information that matches the collation information at this time is the number of moving bodies 1 existing near the door. . That is, here, the control device 8 detects how many moving bodies 1 exist in the vicinity of the door (S3).

  Next, the door opening / closing detection means 15 performs detection until the door changes from the opened state to the closed state again (S4). That is, when it is not detected that the door has changed to the closed state, the door open / close detection means 15 continues to perform the door state detection operation (NO in S4).

  On the other hand, when the door opening / closing detection means 15 detects that the door is closed (YES in S4), the control device 8 confirms whether the number of people going out is one or more. That is, it is confirmed whether the number of people detected in S2 is one or more. For example, when a person opens the door but does not go out of the door and returns to the building as it is, it is determined that the number of people going out is less than one (0) (NO in S5). The door lock system of this embodiment returns to the initial state again and waits for the door to be in an open state.

  On the other hand, when it is determined that the number of people who have gone out is one or more (YES in S5), the control device 8 compares the number of people who have gone out and the number of mobile bodies 1 existing near the door (S6). That is, the number of people detected by the human sensor 11 at S2 is compared with the number of identification information that matches the verification information stored in the memory 9 at S3. Here, if it is determined that the number of people going out is larger than the number of mobile bodies 1 (NO in S6), the sound is played back by the notification means 12, and a person who does not carry the mobile body 1 is included in the person going out. It is notified that there is a possibility, and prompts the user to carry the moving body 1 (S7). As described above, in the present embodiment, the notification unit 12 performs notification by causing a light provided in the vicinity of the door to emit light instead of notification by voice at a predetermined time.

  On the other hand, when it is determined in S6 that the number of people going out is the same as or less than the number of moving objects (YES in S6), the notification means 12 does not notify and the person who goes out is not carrying the moving object 1. It is determined that the door is not locked out, and the door is locked by the locking device 10 (S9).

  Then, after the locking process is performed, the signal transmitting / receiving means 5 detects the response signal from the moving body 1 for the unlocking process when the person who goes out with the moving body 1 enters the room again. Is started (S10). Here, as shown in the flowchart of FIG. 2, when the signal transmission / reception means 5 cannot detect a response signal including identification information that matches the verification information (NO in S10), the detection operation is repeated. This detection operation is continuously performed until a response signal including identification information that matches the verification information is received. That is, the detection operation is continuously performed until the person who has gone out with the mobile body 1 approaches the signal transmission / reception means 5 again while carrying the mobile body 1.

  Then, when the person who has gone out with the mobile body 1 approaches the signal transmission / reception means 5 again, the signal transmission / reception means 5 receives the response signal, and if the identification information included in the response signal matches the verification information (S10). YES), the door is unlocked (S11). Thereafter, the door lock system of the present embodiment returns to the initial state and waits for the door to be opened again.

  On the other hand, when the notification means 12 notifies the person going out in S7, if the request switch 14 is operated (YES in S8), the notification by the notification means 12 can be stopped, and the door is locked by the locking device 10. Locking is performed (S9). The request switch 14 is used to manually stop the notification by the notification means 12 when the person who goes out is a person such as a guest who does not have the problem of not carrying the moving body 1. . When the request switch 14 is not operated (NO in S8), the door lock system of the present embodiment returns to the initial state without locking the door. Alternatively, instead of returning to the initial state, when the request switch 14 is not operated, the process may proceed to S9 after a predetermined time has elapsed and be locked.

  As described above, by repeating the operation shown in the flowchart of FIG. 2, in this embodiment, the possibility that the mobile body 1 is locked out due to non-portability is reduced.

  Hereinafter, effects of the present embodiment will be described.

  First, in this embodiment, it is possible to reduce the possibility that a person will be locked out of a building such as a house.

  This is because the number of persons going out is detected by the human sensor 11 and compared with the number of moving bodies 1 detected by the signal transmission / reception means 5, the moving body 1 is placed in the person going out. This is because it is possible to grasp whether a person who is not carried is included.

  That is, in the conventional door lock system, when a plurality of persons go out at the same time, if there is a person who carries a mobile object corresponding to the key, the notification means does not operate and the mobile object is carried. Although it has been impossible to call attention to a person who is not, in the present embodiment, with the above configuration, even when a plurality of persons go out at the same time, the mobile object 1 is attached to a person who does not carry the mobile object 1. You can encourage them to carry it.

  As a result, in this embodiment, even when a plurality of persons go out at the same time, it is possible to reduce the possibility that the person will be locked out of the room.

  In addition, the human sensor 11 of the present embodiment is configured to detect when a person passes near the door in a direction from the inside to the outside of the building.

  By setting it as such a structure, only the person who goes out from a building can be detected, and the number of going out can be grasped | ascertained correctly.

  Further, it is desirable that the response signal transmitted from the mobile body 1 includes identification information, and the door unlocking and locking operations are controlled based on the authentication result of the identification information.

  Thereby, only the mobile body 1 containing regular identification information can be unlocked and locked, and crime prevention can be improved.

  In the present embodiment, the identification information used to detect the number of mobile bodies 1 in S3 of FIG. 2 and the identification information used to lock the door in S10 are the same encryption information. It is also possible to distinguish between the identification information used in S3 and the two pieces of encryption information used in S10.

  Further, it is desirable that the notification means 12 is notified by voice.

  Thereby, it is possible to prompt a person who does not carry the moving body 1 to carry the moving body 1.

  Moreover, it is good also as a structure which light-emits the light provided in the door vicinity and alert | reports by light.

  In this way, when the notification means 12 is configured to notify by light, for example, in a place where voice notification in a residential area or the like causes inconvenience to neighboring residents, the mobile object does not cause inconvenience to neighboring residents. It is possible to notify a person who does not carry 1.

  In addition, it is good also as a structure which performs alerting | reporting by light only in the predetermined time combining the alerting | reporting by an audio | voice and the alerting | reporting by light.

  As a result, it is possible to make notifications without causing any inconvenience to neighboring residents by setting light notifications in the time zone where it is thought that announcing by voice, particularly at night, will cause inconvenience to neighboring residents. .

  The door lock system according to the present invention can detect a person who does not carry a moving body corresponding to a key even when a plurality of persons go out at the same time. And it is possible to reduce the possibility that the person is locked out of the room by notifying a person who does not carry the moving body to carry the moving body. Therefore, the door lock system in the present invention is very useful for various buildings such as a single house and a condominium.

Block circuit diagram of door lock system in this embodiment The flowchart which shows operation | movement of the door lock system in this embodiment. Block diagram of a conventional door lock system

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Mobile body 2 Main-body part 3 Mobile body receiver 4 Mobile body transmission part 5 Signal transmission / reception means 6 Transmission part 7 Reception part 8 Control apparatus 9 Memory 10 Locking device 11 Human sensor 12 Notification means 13 Time management part 14 Request switch 15 Door Open / close detection means

Claims (6)

A signal transmitting / receiving means for transmitting / receiving an activation signal;
A moving body having a function of transmitting a response signal including identification information to the signal transmitting / receiving means when receiving the activation signal transmitted from the signal transmitting / receiving means, and a predetermined door unlocking function;
A memory preliminarily storing collation information to be collated with the identification information included in the response signal received by the signal transmitting and receiving unit;
A human sensor for detecting the number of people present near the door;
The door lock system provided with the alerting | reporting means to alert | report when the number of persons detected by this human sensitive sensor and the number of the said identification information corresponding to the said collation information are not the same number. The said human sensor detects when a person passes the door vicinity in a predetermined direction, and the said predetermined direction is a direction which goes to the outer side from the inner side of the predetermined building in which the said door was provided. Door lock system. The door has a lock whose electrical unlocking and locking operations are electrically controlled,
The mobile body stores identification information necessary for unlocking and locking operations of the lock,
2. The door lock system according to claim 1, wherein unlocking and locking operations of the lock are controlled by an authentication result of the identification information stored in the mobile body. The door lock system according to claim 1, wherein the notification means notifies by voice. The door lock system according to claim 1, wherein the notification means notifies by light. 2. The door lock system according to claim 1, wherein the notifying unit notifies by light only in a predetermined time zone, and notifies by time of time other than the predetermined time zone.

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