JP2010256991A - Intercom system - Google Patents

Intercom system Download PDF

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JP2010256991A
JP2010256991A JP2009103256A JP2009103256A JP2010256991A JP 2010256991 A JP2010256991 A JP 2010256991A JP 2009103256 A JP2009103256 A JP 2009103256A JP 2009103256 A JP2009103256 A JP 2009103256A JP 2010256991 A JP2010256991 A JP 2010256991A
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portable transceiver
radio wave
portable
transceiver
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JP5519954B2 (en
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Yoshiharu Hatano
由晴 羽田野
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Aiphone Co Ltd
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Aiphone Co Ltd
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Abstract

<P>PROBLEM TO BE SOLVED: To change an intercom to an alarm mode in a timing when a resident goes out without waiting for the count-up of a timer since the resident sets crime prevention until the intercom is shifted to an alarm mode. <P>SOLUTION: A resident carries a portable transmitter/receiver 3 which emits a prescribed radio wave. A front door slave unit 1 includes a slave unit RF circuit for communicating with the portable transmitter/receiver 3, and a living room master unit 2 includes a master unit RF circuit for communicating with the portable transmitter/receiver 3, and the master unit CPU of the living room master 2 is configured to, when the change of radio wave intensity received by the slave unit RF circuit and the maser unit RF circuit satisfies prescribed conditions, determine whether or not the resident has gone out of his or her residence, and to change an intercom to an alarm mode. <P>COPYRIGHT: (C)2011,JPO&amp;INPIT

Description

本発明は、来訪者が居住者を呼び出して通話を行うためのインターホンに防犯センサを接続したインターホンシステムに関する。   The present invention relates to an interphone system in which a security sensor is connected to an interphone for a visitor to call a resident and make a call.

来訪者が居住者を呼び出して通話を行うためのインターホンに、住戸の窓や扉の開操作を検知するセンサや、人物の存在を検知する人体検知センサ等の防犯センサを接続して、留守時に不審者の侵入等の異常を検知したら警報を発するよう構成されたインターホンシステムがある（例えば、特許文献１参照）。
このようなインターホンシステムの場合、警報発報機能が能動状態となる警戒モードに移行する際、移行操作してから居住者が住戸外へ出るまでの待ち時間が必要であるため、一定の時間を設定して警戒モードへ移行させていた。そして、警戒設定して外に出た居住者は、警戒モードへ移行したことを玄関子機等で確認していた。 When intercom is used when a visitor calls a resident and makes a call, a sensor that detects the opening of a dwelling unit's window or door or a human body detection sensor that detects the presence of a person is connected. There is an intercom system configured to issue an alarm when an abnormality such as an intrusion of a suspicious person is detected (see, for example, Patent Document 1).
In the case of such an intercom system, when shifting to a warning mode in which the alarm notification function is active, it is necessary to wait for the resident to go out of the dwelling after the transition operation. It was set and shifted to the alert mode. And the resident who went out after setting alert was confirming with the entrance cordless handset that it shifted to alert mode.

特開平１０−１３４２８６号公報Japanese Patent Laid-Open No. 10-134286 特開２００７−９６７１８号公報JP 2007-96718 A

このように、従来の防犯センサを備えたインターホンシステムは、警戒設定するのに時間を要し、操作が面倒であったため、本出願人は特許文献２に示すインターホンシステムを提案した。特許文献２では、玄関子機の操作により、一定時間の経過を待たずに警戒モードへ移行できるようにし、待ち時間の解消を図った。   Thus, since the intercom system provided with the conventional crime prevention sensor required time to set alert and the operation was troublesome, the present applicant proposed the interphone system shown in Patent Document 2. In patent document 2, it was made possible to shift to the alert mode without waiting for the elapse of a fixed time by operating the entrance cordless handset, thereby eliminating the waiting time.

しかしながら、上記特許文献２の技術の場合、タイマがカウントアップするまで待つ必要は無くなったが、玄関子機の操作が必要であるし、玄関子機は不特定の人物による操作が可能であるため防犯上の問題が危惧された。
そこで、本発明はこのような問題点に鑑み、居住者が居室親機で防犯設定してから警戒モードへ移行するまでのタイマのカウントアップを待つことなく、居住者が外出したタイミングで警戒モードへ移行し、またタイマのカウントを終了させる操作を別途必要としないインターホンシステムを提供することを目的としている。 However, in the case of the technique disclosed in Patent Document 2, there is no need to wait until the timer counts up. However, it is necessary to operate the entrance unit, and the entrance unit can be operated by an unspecified person. There were concerns about security problems.
Therefore, in view of such a problem, the present invention does not wait for the timer to count up until the resident enters the security mode after the crime prevention setting by the occupant parent machine, and at the timing when the resident goes out, It is an object of the present invention to provide an intercom system that does not require a separate operation for shifting to, and terminating timer counting.

上記課題を解決する為に、請求項１の発明は、来訪者が居住者を呼び出して通話するための玄関子機と、玄関子機からの呼び出しに応答するための居室親機とを有するインターホンと、居室親機に接続された防犯センサ等の異常検知手段とを備え、インターホンは異常検知手段が異常発生を検知したら発報動作する警報発報機能を備えたインターホンシステムであって、居住者が携行可能で所定の電波を発する携帯送受信器を具備すると共に、玄関子機は、携帯送受信器と通信する子機無線通信手段、及び携帯送受信器から受信した電波強度を測定する子機電波強度測定手段を備え、更にインターホンは、子機電波強度測定手段の測定値の変化が一定の条件を満たしたら、携帯送受信器が住戸外へ出たと判断する外出判定手段を有し、外出判定手段は、携帯送受信器が住戸外へ出たと判断したら、警報発報機能を能動とする警戒モードへ移行させることを特徴とする。
この構成によれば、携帯送受信器が玄関子機に近づき、その後遠ざかるのを検出、即ち携帯送受信器を携行した居住者が玄関から出て、出かける状態を検出することができるので、この電波の変化から居住者の外出を判断して、インターホンを警戒モードへ移行させることができる。よって、居住者はタイマのカウントアップを待ったり、玄関子機を操作して警戒モードへ移行させる必要がなく、煩わしい操作をすること無く警戒モードへ移行させることができる。また、玄関子機に警戒モードへ移行させる操作部を設ける必要が無く、防犯上も好ましい。 In order to solve the above-mentioned problem, the invention of claim 1 is an interphone having an entrance cordless handset for a visitor to call a resident and make a call, and a room base phone for answering a call from the entrance cordless handset. And an intercom is an intercom system having an alarm notification function that activates an alarm when the abnormality detection means detects an abnormality. Is equipped with a portable transmitter / receiver that emits a predetermined radio wave, and the front handset has a handset wireless communication means that communicates with the portable transmitter / receiver, and a handset radio field strength that measures the radio field intensity received from the portable transmitter / receiver. The intercom further includes an outing determination unit that determines that the portable transceiver has gone out of the dwelling when the change in the measurement value of the handset radio wave intensity measurement unit satisfies a certain condition. Means, portable transceivers if it is determined to have moved out into the dwelling out, characterized in that shifting the alarm onset report function to alert mode to active.
According to this configuration, it is possible to detect when the portable transceiver approaches the entrance slave unit and then moves away, i.e., the occupant carrying the portable transceiver can exit the entrance and detect the state of going out. The intercom can be shifted to the alert mode by judging the resident's going out from the change. Therefore, the resident does not need to wait for the timer to be counted up or operate the entrance cordless handset to shift to the warning mode, and can shift to the warning mode without performing any troublesome operations. In addition, it is not necessary to provide an operation unit for shifting the entrance cordless handset to the warning mode, which is preferable in terms of crime prevention.

請求項２の発明は、請求項１に記載の構成において、外出判定手段は、子機電波強度測定手段の測定値が上昇した後、所定量下降したら携帯送受信器が住戸外へ出たと判断することを特徴とする。
この構成によれば、居住者が玄関子機に近づいた後、遠ざかるのを確実に判断できる。 According to a second aspect of the present invention, in the configuration according to the first aspect, the outing determining means determines that the portable transceiver has gone out of the dwelling when the measured value of the slave unit radio wave intensity measuring means decreases and then decreases by a predetermined amount. It is characterized by that.
According to this configuration, it is possible to reliably determine that the resident moves away after approaching the entrance cordless handset.

請求項３の発明は、請求項１に記載の構成において、居室親機は、携帯送受信器と通信する親機無線通信手段、及び携帯送受信器から受信した電波強度を測定する親機電波強度測定手段を備え、外出判定手段は、子機電波強度測定手段、及び親機電波強度測定手段の測定値の変化が一定の条件を満たしたら、携帯送受信器が住戸外へ出たと判断することを特徴とする。
この構成によれば、居住者が住戸内から住戸外へ移動し、その後玄関子機に近づき、更に遠ざかる状態を検出することが可能となる。よって、居住者の外出を高精度で判断できる。 According to a third aspect of the present invention, in the configuration of the first aspect, the living room base unit is a base unit wireless communication means for communicating with the portable transceiver, and a parent unit radio field intensity measurement for measuring the radio field intensity received from the portable transceiver. And the outing determination means determines that the portable transceiver has gone out of the dwelling unit when a change in measured values of the slave unit radio field intensity measurement unit and the master unit radio field intensity measurement unit satisfies a certain condition. And
According to this configuration, it is possible to detect a state in which the resident moves from the inside of the dwelling unit to the outside of the dwelling unit, then approaches the entrance cordless handset and moves further away. Therefore, the resident's going out can be determined with high accuracy.

請求項４の発明は、請求項３に記載の発明において、外出判定手段は、親機電波強度測定手段の測定値が所定の値を下回った状態で、子機電波強度測定手段の測定値が上昇した後、所定量下降したら携帯送受信器が住戸外へ出たと判断することを特徴とする。
この構成によれば、居住者が住戸から出て玄関子機に近づき、その後遠ざかるのを確実に判断できる。そのため、住戸内から玄関に出た居住者が、再び住戸内に戻るようなことがあってもそれを検知でき、誤判断するようなことが無くなる。 According to a fourth aspect of the present invention, in the invention according to the third aspect, the outing determining means is configured such that the measured value of the slave unit radio field intensity measuring unit is in a state where the measured value of the master unit radio field intensity measuring unit is below a predetermined value. After rising, when a predetermined amount falls, it is determined that the portable transceiver has gone out of the dwelling unit.
According to this configuration, it is possible to reliably determine that the resident leaves the dwelling unit, approaches the entrance cordless handset, and then moves away. Therefore, even if a resident who has come out of the dwelling unit to return to the dwelling unit may return to the dwelling unit, it can be detected and no erroneous determination is made.

請求項５の発明は、請求項１乃至４の何れかに記載の構成において、居室親機は、警報発報機能を能動とする警戒設定ボタンと、警戒設定ボタン操作を受けて、一定時間経過後に警戒モードへ移行させるためのタイマとを有し、外出判定手段は、警戒設定ボタンが操作されて、一定時間が経過するまでの間に携帯送受信器が住戸外へ出たと判断したら、一定時間の経過を待たずに警戒モードへ移行させることを特徴とする。
この構成によれば、携帯送受信器から送信される電波により警戒モードへ移行出来なくても、一定時間が経過してから自動で警戒モードに移行するので居住者は安心できる。また、警戒設定することで外出判定手段は判定を実施するので、居住者が知らない間に警戒モードへ移行することがなく安心である。 According to a fifth aspect of the present invention, in the configuration according to any one of the first to fourth aspects, the living room base unit receives a warning setting button for activating an alarm notification function and a warning setting button operation, and a predetermined time has elapsed. And a timer for making a transition to the warning mode later, and the outing determination means, if it is determined that the portable transmitter / receiver has moved out of the dwelling unit until the fixed time has elapsed after the warning setting button is operated It is characterized by making it transfer to alert mode, without waiting for progress.
According to this configuration, even if the radio wave transmitted from the portable transceiver cannot be used to shift to the alert mode, the resident can be relieved because the mode automatically shifts to the alert mode after a certain time has elapsed. Moreover, since the outing determination means carries out the determination by setting the alert, it is safe without shifting to the alert mode without the resident knowing.

請求項６の発明は、請求項５に記載の構成において、居室親機は、携帯送受信器を起動させるための携帯送受信器起動手段を有し、携帯送受信器起動手段は、警戒設定ボタンが操作されたら親機無線通信手段から起動信号を発信させ、携帯送受信器を起動して所定の電波の発信を開始させることを特徴とする。
この構成によれば、警戒設定ボタン操作により、携帯送受信器は所定の電波の発信を開始するので、内部バッテリーの節電を図ることができる。 According to a sixth aspect of the present invention, in the configuration according to the fifth aspect, the room master has a portable transceiver activation means for activating the portable transceiver, and the portable transceiver activation means is operated by a warning setting button. Then, a starting signal is transmitted from the base unit wireless communication means, and the portable transceiver is started to start transmitting a predetermined radio wave.
According to this configuration, the portable transmitter / receiver starts transmitting a predetermined radio wave by the operation of the warning setting button, so that the internal battery can be saved.

請求項７の発明は、請求項１乃至６の何れかに記載の構成において、携帯送受信器が発信する所定の電波は自身のＩＤ情報を含む一方、玄関子機は、携帯送受信器から受信した電波がＩＤを認識するＩＤ認識手段を有し、外出判定手段は、ＩＤ認識手段がＩＤを認識しなければ外出の判断を行わないことを特徴とする。
この構成によれば、受信電波にＩＤ情報を含まなければ、携帯送受信器の存在を判断することがないため、誤動作することがない。 According to a seventh aspect of the present invention, in the configuration according to any one of the first to sixth aspects, the predetermined radio wave transmitted by the portable transceiver includes its own ID information, while the entrance unit has received from the portable transceiver. The radio wave has ID recognition means for recognizing an ID, and the outing determination means does not make a determination of going out unless the ID recognition means recognizes the ID.
According to this configuration, if the received radio wave does not include ID information, the presence of the portable transceiver is not determined, so that no malfunction occurs.

請求項８の発明は、請求項１乃至７の何れかに記載の構成において、外出判定手段は、警戒モードへの移行を実施後、警戒モード移行完了を携帯送受信器に通知するためのアンサー信号を子機無線通信手段から送信させると共に、携帯送受信器は、インターホンが警戒モードに移行したことを報知する報知手段、及びアンサー信号を受けて報知手段を報知動作させる報知制御手段を有することを特徴とする。
この構成によれば、インターホンが警戒モードに移行したら携帯送受信器がそれを報知するので、居住者は警戒モードへの移行を確認でき安心できる。 The invention according to claim 8 is the configuration according to any one of claims 1 to 7, wherein the outing determination means performs an answer signal for notifying the portable transmitter / receiver of the completion of the alert mode transition after the transition to the alert mode. Is transmitted from the slave unit wireless communication means, and the portable transceiver has notification means for notifying that the interphone has shifted to the alert mode, and notification control means for notifying the notification means upon receiving an answer signal. And
According to this configuration, when the intercom shifts to the warning mode, the portable transceiver notifies the user, so that the resident can confirm the shift to the warning mode and can be relieved.

本発明によれば、居住者の外出を検出して警戒モードに移行するため、タイマのカウントアップを待ったり、玄関子機を操作して警戒モードへ移行させる必要がない。よって、居住者は煩わしい操作をすること無く警戒モードへ移行させることがきる。また、玄関子機に警戒モードへ移行させる操作部を設ける必要が無く、防犯上も好ましい。   According to the present invention, it is not necessary to wait for the timer to be counted up or to operate the entrance cordless handset to shift to the warning mode because it detects the resident's going out and shifts to the warning mode. Therefore, the resident can shift to the warning mode without performing a troublesome operation. In addition, it is not necessary to provide an operation unit for shifting the entrance cordless handset to the warning mode, which is preferable in terms of crime prevention.

本発明に係るインターホンシステムの一例を示す構成図である。It is a block diagram which shows an example of the intercom system which concerns on this invention. 玄関子機の回路ブロック図である。It is a circuit block diagram of an entrance child machine. 居室親機の回路ブロック図である。It is a circuit block diagram of an office master. 携帯送受信器の回路ブロック図である。It is a circuit block diagram of a portable transceiver. 警戒モードに移行する制御の説明図であり、（ａ）は居住者の場所の変化、（ｂ）は居室親機が携帯送受信器から受信する電波強度の変化、（ｃ）は玄関子機が携帯送受信器から受信する電波強度の変化を示している。It is explanatory drawing of the control which transfers to warning mode, (a) is a change of a resident's place, (b) is a change of the radio field intensity which a living room main machine receives from a portable transceiver, (c) is an entrance cordless handset. The change of the radio field intensity received from the portable transceiver is shown.

以下、本発明を具体化した実施の形態を、図面に基づいて詳細に説明する。図１は本発明に係るインターホンシステムの一例を示す構成図であり、１は来訪者が居住者を呼び出して通話するために玄関に設置された玄関子機、２は玄関子機１からの呼び出しに応答するために住戸内に設置された居室親機、３は所定の電波を発して玄関子機１や居室親機２と通信する携帯送受信器、４は窓等に設置されて開操作等を検知する防犯センサ、５は玄関扉等に設置された電気錠、６は異常発生時等に警報を発する警報器である。
玄関子機１は伝送線Ｌ１により居室親機２に接続され、防犯センサ４、電気錠５、警報器６は夫々伝送線Ｌ２〜Ｌ４で居室親機２に接続されている。 DESCRIPTION OF EXEMPLARY EMBODIMENTS Hereinafter, embodiments of the invention will be described in detail with reference to the drawings. FIG. 1 is a block diagram showing an example of an intercom system according to the present invention. 1 is an entrance cordless handset installed at the entrance for a visitor to call a resident and talk, and 2 is a call from the entrance cordless handset 1. 3 is a portable transceiver that emits a predetermined radio wave and communicates with the front cordless handset 1 and the living room base unit 2. 4 is installed in a window or the like for opening operation, etc. A security sensor 5 detects an electrical lock, 5 is an electric lock installed at the entrance door, and 6 is an alarm device that issues an alarm when an abnormality occurs.
The entrance cordless handset 1 is connected to the living room master unit 2 via a transmission line L1, and the security sensor 4, the electric lock 5 and the alarm device 6 are connected to the living room master unit 2 via transmission lines L2 to L4, respectively.

図２は玄関子機１の回路ブロック図を示している。この図２に示すように、玄関子機１は、来訪者を撮像するカメラ１０、映像信号の変調処理等を行う映像処理部１１、アンテナ１２を備えて携帯送受信器３と通信するための子機ＲＦ回路１３、居住者を呼び出す呼出ボタン１４、マイク１５ａ及びスピーカ１５ｂを備えた通話回路１５、携帯送受信器３のＩＤ情報を記憶する記憶部１６、玄関子機１全体を制御する子機ＣＰＵ１７、居室親機２と通信するための子機インターフェース（子機ＩＦ）１８等を備えている。   FIG. 2 shows a circuit block diagram of the entrance cordless handset 1. As shown in FIG. 2, the entrance cordless handset 1 includes a camera 10 that images a visitor, a video processing unit 11 that performs video signal modulation processing and the like, and an antenna 12 for communicating with the portable transceiver 3. RF circuit 13, call button 14 for calling a resident, call circuit 15 provided with microphone 15 a and speaker 15 b, storage unit 16 for storing ID information of portable transceiver 3, slave unit CPU 17 for controlling the entire entrance slave unit 1 And a slave unit interface (slave unit IF) 18 for communicating with the living room master unit 2.

図３は居室親機２の回路ブロック図を示している。この図３に示すように、居室親機２は、カメラ１０の撮像映像を表示する表示部２１、玄関子機１から伝送された映像信号の復調処理等を行う映像処理部２２、玄関子機１からの呼び出しに応答操作する通話ボタン２３、警報発報機能を能動とする警戒モードへ移行操作する警戒設定ボタン２４、警戒設定ボタン２４の操作を受けて一定時間のカウントを行うタイマ２５、携帯送受信器３と通信するためのアンテナ２６を備えた親機ＲＦ回路２７、マイク２８ａ及びスピーカ２８ｂを備えた通話回路２８、居室親機２全体を制御する親機ＣＰＵ２９、玄関子機１と通信すると共に、上記防犯センサ４や電気錠５等の異常検知手段と通信するための親機インターフェース（親機ＩＦ）３０等を備えている。   FIG. 3 shows a circuit block diagram of the living room master unit 2. As shown in FIG. 3, the living room master unit 2 includes a display unit 21 that displays a captured image of the camera 10, a video processing unit 22 that performs a demodulation process of a video signal transmitted from the entrance unit 1, and an entrance unit. A call button 23 that responds to a call from 1, a warning setting button 24 that shifts to a warning mode that activates a warning function, a timer 25 that counts for a certain time in response to the operation of the warning setting button 24, a mobile phone The main unit RF circuit 27 having an antenna 26 for communicating with the transceiver 3, the call circuit 28 having a microphone 28 a and a speaker 28 b, the main unit CPU 29 for controlling the living room main unit 2 as a whole, and communicating with the entrance terminal 1. In addition, a base unit interface (base unit IF) 30 for communicating with the abnormality detection means such as the security sensor 4 and the electric lock 5 is provided.

図４は携帯送受信器３の回路ブロック図を示している。この図４に示すように、携帯送受信器３は、玄関子機１及び居室親機２と通信するためのアンテナ３２を備えたＲＦ回路３３、玄関子機１等との通信状態を発光表示するＬＥＤ３４、報音通知するためのブザー３５、携帯送受信器３全体を制御する送受信器ＣＰＵ３６、動作電源である電池３７等を備えている。   FIG. 4 shows a circuit block diagram of the portable transceiver 3. As shown in FIG. 4, the portable transmitter / receiver 3 emits and displays a communication state with the RF circuit 33 including the antenna 32 for communicating with the front door unit 1 and the room base unit 2, the front door unit 1 and the like. It includes an LED 34, a buzzer 35 for reporting sound notifications, a transceiver CPU 36 for controlling the entire portable transceiver 3 and a battery 37 as an operating power source.

上記の如く構成されたインターホンシステムの動作、特に携帯送受信器３と玄関子機１及び居室親機２の通信に基づく動作を、以下、具体的に説明する。尚、呼び出して応答するインターホンとしての基本動作の説明は省略する。
居住者等により警戒設定ボタン２４が押下されると、インターホンを構成する玄関子機１と居室親機２は警戒モードへの移行を開始する。具体的に、親機ＣＰＵ２９の制御により、先ずタイマ２５が、例えば１００秒等の設定された時間のカウントを開始する。このタイマ２５がカウントアップしたら、警戒モードへ移行する。 The operation of the intercom system configured as described above, in particular, the operation based on the communication between the portable transceiver 3 and the entrance slave unit 1 and the room master unit 2 will be specifically described below. The description of the basic operation as an intercom that calls and responds is omitted.
When the caution setting button 24 is pressed by a resident or the like, the front cordless handset 1 and the room base unit 2 constituting the interphone start shifting to the caution mode. Specifically, under the control of the master CPU 29, the timer 25 starts counting a set time such as 100 seconds, for example. When the timer 25 counts up, it shifts to a warning mode.

また、親機ＣＰＵ２９は、警戒設定ボタン２４の操作を受けて、親機ＲＦ回路２７を起動して携帯送受信器３に対して起動信号をアンテナ２６から発信させる。この起動信号は、携帯送受信器３のアンテナ３２を介してＲＦ回路３３で受信され、送受信器ＣＰＵ３６が起動信号の受信を認識すると、ＲＦ回路３３から所定の高周波信号の発信を開始させる。このときＲＦ回路３３は、予め設定されている自身のＩＤ情報を含む高周波信号の発信を開始し、アンテナ３２から例えば０．５秒のインターバルで０．１秒間信号を発信する間欠発信が実施される。更に、警戒設定ボタン２４の操作を受けて、親機ＣＰＵ２９は後述する電波強度の測定を開始する。
このように、警戒設定ボタン２４の操作で、携帯送受信器３はオンして所定の電波の発信を開始するので、常時発信させる必要が無く内部バッテリーの節電を図ることができる。 Further, in response to the operation of the alert setting button 24, the base unit CPU 29 activates the base unit RF circuit 27 to cause the portable transceiver 3 to transmit an activation signal from the antenna 26. This activation signal is received by the RF circuit 33 via the antenna 32 of the portable transceiver 3, and when the transceiver CPU 36 recognizes the reception of the activation signal, the RF circuit 33 starts transmitting a predetermined high-frequency signal. At this time, the RF circuit 33 starts transmission of a high-frequency signal including its own ID information set in advance, and intermittent transmission is performed in which a signal is transmitted from the antenna 32 for 0.1 seconds at intervals of 0.5 seconds, for example. The Furthermore, in response to the operation of the alert setting button 24, the master CPU 29 starts measurement of radio wave intensity, which will be described later.
In this manner, the portable transceiver 3 is turned on by the operation of the alert setting button 24 and starts transmitting a predetermined radio wave, so that it is not necessary to always transmit and the internal battery can be saved.

尚、携帯送受信器３は、図示しない電源スイッチを有し、電源スイッチオンの状態で起動信号の待受状態となり、この状態で居室親機２から起動信号を受信すると高周波信号の発信を開始する。また、居室親機２と携帯送受信器３との通信、及び玄関子機１と携帯送受信器３との通信は、振幅変調、周波数変調、位相変調、更にはそれらの組み合わせが使用できる。   The portable transmitter / receiver 3 has a power switch (not shown). When the power switch is turned on, the portable transmitter / receiver 3 enters a standby state for a startup signal. When the startup signal is received from the room master unit 2 in this state, transmission of a high-frequency signal is started. . In addition, amplitude communication, frequency modulation, phase modulation, and a combination thereof can be used for communication between the living room master unit 2 and the portable transceiver 3 and communication between the entrance slave unit 1 and the portable transceiver 3.

こうして高周波信号の発信を開始した携帯送受信器３を居住者が携行し、居室親機２から離れて玄関に向かい、更に玄関から外に出た場合、インターホンは次のような動作をする。居住者が移動する間、携帯送受信器３から発信される電波は、親機ＲＦ回路２７及び子機ＲＦ回路１３で受信され、親機ＲＦ回路２７が受信した電波の情報（受信電力）情報は親機ＣＰＵ２９に送信され、子機ＲＦ回路１３が受信した電波の強度（受信電力）情報は子機ＣＰＵ１７に送られる。
図５は、このように居室親機２及び玄関子機１が受信した電波強度の変化をモデル化した説明図であり、（ａ）は携帯送受信器３を携行した居住者の場所の変化、（ｂ）は居室親機２が携帯送受信器３から受信する電波の変化、（ｃ）は玄関子機１が携帯送受信器３から受信する電波の変化を示している。尚、［Ｅ１］は住戸エリア、［Ｅ２］は玄関と塀に設置された玄関子機１の間のエリア、［Ｅ３］は塀から外のエリアを示している。 When the resident carries the portable transmitter / receiver 3 that has started the transmission of the high-frequency signal in this way, moves away from the parent room 2 toward the entrance, and further goes out of the entrance, the interphone operates as follows. While the resident moves, the radio wave transmitted from the portable transceiver 3 is received by the base unit RF circuit 27 and the base unit RF circuit 13, and the radio wave information (received power) information received by the base unit RF circuit 27 is The radio wave intensity (reception power) information transmitted to the master CPU 29 and received by the slave RF circuit 13 is sent to the slave CPU 17.
FIG. 5 is an explanatory diagram modeling changes in radio field intensity received by the living room master unit 2 and the entrance unit 1 as described above, and (a) shows changes in the location of the occupant carrying the portable transceiver 3, (B) shows a change in the radio wave received from the portable transceiver 3 by the living room master unit 2, and (c) shows a change in the radio wave received by the front cordless handset 1 from the portable transceiver 3. [E1] indicates a dwelling unit area, [E2] indicates an area between the entrance and the entrance cordless handset 1 installed at the fence, and [E3] indicates an area outside the fence.

図５に示すように、携帯送受信器３を携行した居住者が居室親機２から離れるに従い、居室親機２が受信する電波強度が減少して行き、［Ｅ１］エリアから［Ｅ２］エリアに進むと、予め設定された閾値を下回るようになる。同時に、居住者は玄関子機１に近づくため、玄関子機１が受信する電波強度は増加して行く。そして、［Ｅ２］エリアから［Ｅ３］エリアに進む途中で玄関子機１に最接近し、玄関子機１の受信電波強度は最大値となる。その後、［Ｅ３］エリアに進むと玄関子機１から離れるため、玄関子機１の受信電波強度は減少して行く。   As shown in FIG. 5, as the resident carrying the portable transceiver 3 moves away from the room master unit 2, the radio field intensity received by the room base unit 2 decreases and changes from the [E1] area to the [E2] area. As the process proceeds, the value falls below a preset threshold value. At the same time, since the resident approaches the entrance cordless handset 1, the radio field intensity received by the entrance cordless handset 1 increases. Then, it approaches the entrance cordless handset 1 on the way from the [E2] area to the [E3] area, and the received radio wave intensity of the entrance cordless handset 1 becomes the maximum value. After that, when proceeding to the [E3] area, the received radio wave intensity of the front door device 1 decreases because it leaves the front door device 1.

親機ＲＦ回路２７から電波強度情報を入手した親機ＣＰＵ２９は、予め設定されている閾値Ｔ１（例えば、−９０ｄＢｍ）と比較する。一方、子機ＲＦ回路１３から電波強度信号を入手した子機ＣＰＵ１７は、この情報を居室親機２に送信する。親機ＣＰＵ２９は、玄関子機１から受信した電波強度を時系列で比較し、最大値を判断すると共に、その後減少して最大値から一定レベル（例えば、３デシベル）減少したポイントを検出する。
但し、子機ＣＰＵ１７は、子機ＲＦ回路１３が携帯送受信器３から受信した高周波信号に含まれるＩＤ情報を読み取り、記憶部１６が記憶しているＩＤと一致しているか判断し、一致しなければ、受信電波の強度情報の送信を実施しない。 The master CPU 29 that has acquired the radio field intensity information from the master RF circuit 27 compares it with a preset threshold value T1 (for example, -90 dBm). On the other hand, the slave CPU 17 that has obtained the radio field intensity signal from the slave RF circuit 13 transmits this information to the room master 2. The base unit CPU 29 compares the radio field intensity received from the entrance cordless handset 1 in time series, determines the maximum value, and then detects a point that is decreased and then decreased from the maximum value by a certain level (for example, 3 dB).
However, the slave unit CPU 17 reads the ID information included in the high frequency signal received by the slave unit RF circuit 13 from the portable transceiver 3 and determines whether or not it matches the ID stored in the storage unit 16. In this case, the received radio wave intensity information is not transmitted.

親機ＣＰＵ２９は、こうして親機ＲＦ回路２７が受信する電波の強度が閾値Ｔ１を下回った状態で、子機ＲＦ回路１３が受信する電波の強度がピークを採ったあと減少し、最大値から一定レベル減少した時点Ｐを検出したら外出したと判断する。   In the state where the intensity of the radio wave received by the parent machine RF circuit 27 is below the threshold value T1, the parent machine CPU 29 decreases after the intensity of the radio wave received by the child machine RF circuit 13 takes a peak, and is constant from the maximum value. If the time point P at which the level decreases is detected, it is determined that the user has gone out.

居住者が外出したと判断した親機ＣＰＵ２９は、カウント中のタイマ２５を停止し、上記防犯センサ４や電気錠５等の異常検知手段が異常を検知したらインターホンが発報動作する、即ち玄関子機１、居室親機２、更には警報器６が警報音を発する警戒モードへ移行させる。そして、玄関子機１に対して警戒モード移行完了信号を送信する。
この警戒モード移行完了信号を受けた玄関子機１は、子機ＣＰＵ１７の制御により、子機ＲＦ回路１３から携帯送受信器３に対して警戒モード移行完了を通知するためのアンサー信号が送信される。 The master CPU 29, which has determined that the resident has gone out, stops the counting timer 25, and when the abnormality detection means such as the security sensor 4 or the electric lock 5 detects an abnormality, the interphone performs a warning operation. The machine 1, the living room master 2, and the alarm device 6 are shifted to a warning mode in which an alarm sound is emitted. Then, a warning mode transition completion signal is transmitted to the entrance cordless handset 1.
Upon reception of the warning mode transition completion signal, the entrance slave unit 1 transmits an answer signal for notifying the portable transceiver 3 of the completion of the warning mode transition from the slave unit RF circuit 13 under the control of the slave unit CPU 17. .

このアンサー信号を受信した携帯送受信器３は、送受信器ＣＰＵ３６の制御により、ＬＥＤ３４が発光動作すると共に、ブザー３５が通知音を報音し、居住者に対して警戒モードへ移行したことを通知し、更に高周波信号の発信を停止して待受状態に戻る。
警戒モード状態となったインターホンは、例えば防犯センサ４が異常を検知したら、玄関子機１、居室親機２、更には警報器６が警報音を発して、侵入者を威嚇すると共に、近所に異常発生を通知する。 The portable transmitter / receiver 3 that has received this answer signal controls the transmitter / receiver CPU 36 so that the LED 34 emits light and the buzzer 35 reports a notification sound to notify the resident that the alarm mode has been entered. Furthermore, the transmission of the high frequency signal is stopped and the standby state is restored.
For example, if the security sensor 4 detects an abnormality in the intercom that is in the warning mode, the entrance cordless handset 1, the living room master 2, and further the alarm device 6 emit an alarm sound to threaten the intruder and Notify that an error has occurred.

このように、携帯送受信器３の位置、即ち携帯送受信器３を携行した居住者の位置を検出し、居住者が住戸外へ出て、玄関子機１から離れていったら自動で警戒モードに移行するので、居住者はタイマ２５のカウントアップを待ったり、玄関子機１を操作して警戒モードへ移行させる必要がない。よって、居住者は煩わしい操作をすること無く警戒モードへ移行させることがきるし、玄関子機１に警戒モードへ移行させる操作部を設ける必要が無く、防犯上も好ましい。
また、居住者が住戸内から住戸外へ移動し、その後玄関子機１に近づき、更に遠ざかる状態を検出するので、玄関に出た居住者が再び住戸内に戻るようなことがあっても、外出と判断するようなことがなく、誤動作を防ぐことができる。 In this manner, the position of the portable transceiver 3, that is, the position of the resident carrying the portable transceiver 3 is detected, and when the resident leaves the dwelling unit and leaves the entrance cordless handset 1, the warning mode is automatically entered. Since the transition is made, there is no need for the resident to wait for the timer 25 to count up or to operate the entrance cordless handset 1 to shift to the alert mode. Therefore, the resident can shift to the warning mode without performing a troublesome operation, and it is not necessary to provide an operation unit for shifting to the warning mode in the entrance cordless handset 1, which is preferable in terms of crime prevention.
In addition, since the resident moves from the inside of the dwelling to the outside of the dwelling, then approaches the entrance cordless handset 1 and further moves away, the resident who has come out of the entrance may return to the dwelling unit again. It is not determined that the user has gone out, and malfunction can be prevented.

更に、携帯送受信器３から送信される電波により警戒モードへ移行出来ない場合ても、一定時間が経過してから自動で警戒モードに移行するので安心であるし、警戒設定することで外出の判定を開始するので、居住者が知らない間に警戒モードへ移行するようなことがなく安心である。
また、受信電波に所定のＩＤ情報が含まれていなければ、携帯送受信器の存在を判断することがないため、他の同様の信号を発する機器が接近したとしても誤動作することがない。
そして、警戒モードに移行したら、携帯送受信器３がそれを報知するので、居住者は警戒モードへの移行を確認でき、安心できる。 Furthermore, even if it is not possible to shift to the alert mode due to radio waves transmitted from the portable transceiver 3, it is safe because it automatically shifts to the alert mode after a certain period of time, and it is determined to go out by setting the alert. Since the resident starts, there is no need to shift to the warning mode without the knowledge of the resident.
Also, if the received radio wave does not contain the predetermined ID information, the presence of the portable transceiver is not determined, so that malfunction does not occur even when other devices that emit similar signals approach.
And if it transfers to warning mode, since the portable transmitter / receiver 3 alert | reports it, the resident can confirm the transfer to warning mode and can be relieved.

尚、上記実施形態では、玄関子機１と居室親機２の双方で、携帯送受信器３が発する電波の強度を測定し、双方の電波強度の変化から居住者の外出を判断しているが、玄関子機１が受信する電波強度の変化のみで居住者の外出を判定しても良い。また、逆に居室親機２が受信する電波強度の変化のみでも居住者の外出を判定することも可能である。
一方、上記実施形態のように、玄関子機１と居室親機２の双方で携帯送受信器３が発する電波強度を測定する場合、居住者の位置を比較的正確に判断できるので、居住者の居る場所の照明を付けたり、居ない場所の照明を消すといった機能を持たせることも可能である。
更に、親機ＣＰＵ２９が、居住者の外出を判断しているが、子機ＣＰＵ１７に判断機能を設けても良い。また、居室親機２を操作して携帯送受信器３をオンさせているが、ＲＦ回路３３を能動として所定の電波の発信を開始させる起動ボタンを携帯送受信器３自体に設けても良い。この場合、携帯送受信器３を完全にオフ状態にすることが可能となるため、電池３７の寿命を延ばすことができる。 In the above embodiment, the strength of the radio wave emitted by the portable transceiver 3 is measured by both the entrance cordless handset 1 and the living room base unit 2, and it is determined whether the resident has gone out from the change in the radio wave strength of both. The resident's going out may be determined only by the change in the radio field intensity received by the entrance cordless handset 1. Conversely, it is also possible to determine whether the resident has gone out only by the change in the radio field intensity received by the room master unit 2.
On the other hand, when the radio field intensity emitted by the portable transceiver 3 is measured in both the front door unit 1 and the living room base unit 2 as in the above embodiment, the position of the resident can be determined relatively accurately. It is also possible to provide functions such as turning on lighting wherever you are or turning off lighting where you are not.
Further, although the master CPU 29 determines that the resident is out, the slave CPU 17 may be provided with a determination function. Further, although the portable transceiver 3 is turned on by operating the living room master unit 2, an activation button that activates the RF circuit 33 to start transmission of a predetermined radio wave may be provided in the portable transceiver 3 itself. In this case, since the portable transceiver 3 can be completely turned off, the life of the battery 37 can be extended.

１・・玄関子機、２・・居室親機、３・・携帯送受信器、４・・防犯センサ（異常検知手段）、５・・電気錠（異常検知手段）、１２・・アンテナ、１３・・子機ＲＦ回路（子機無線通信手段、子機電波強度測定手段）、１７・・記憶部、１７・・子機ＣＰＵ（ＩＤ認識手段）、２４・・警戒設定ボタン、２５・・タイマ、２６・・アンテナ、２７・・親機ＲＦ回路（親機無線通信手段、親機電波強度測定手段）、２９・・親機ＣＰＵ（外出判定手段、携帯送受信器起動手段）、３２・・アンテナ、３３・・ＲＦ回路、３４・・ＬＥＤ（報知手段）、３５・・ブザー（報知手段）、３６・・送受信器ＣＰＵ（報知制御手段）。   1 .. Entrance cordless handset 2.. Base room 3.. Portable transceiver 4.. Security sensor (abnormality detection means) 5.. Electric lock (abnormality detection means) 12.・ Slave unit RF circuit (slave unit wireless communication means, slave unit radio wave intensity measurement unit), 17 ..Storage unit, 17 ..Slave unit CPU (ID recognition unit), 24 ..Warning setting button, 25 ..Timer, 26 .. Antenna, 27 .. Base unit RF circuit (base unit wireless communication means, base unit radio wave intensity measurement means), 29 .. Base unit CPU (outing determination means, portable transceiver activation means), 32 .. Antenna, 33..RF circuit, 34..LED (notification means), 35..Buzzer (notification means), 36..Transceiver CPU (notification control means).

Claims (8)

来訪者が居住者を呼び出して通話するための玄関子機と、前記玄関子機からの呼び出しに応答するための居室親機とを有するインターホンと、前記居室親機に接続された防犯センサ等の異常検知手段とを備え、前記インターホンは前記異常検知手段が異常発生を検知したら発報動作する警報発報機能を備えたインターホンシステムであって、
居住者が携行可能で所定の電波を発する携帯送受信器を具備すると共に、前記玄関子機は、前記携帯送受信器と通信する子機無線通信手段、及び前記携帯送受信器から受信した電波強度を測定する子機電波強度測定手段を有し、
更に前記インターホンは、前記子機電波強度測定手段の測定値の変化が一定の条件を満たしたら、前記携帯送受信器が住戸外へ出たと判断する外出判定手段を有し、
前記外出判定手段は、前記携帯送受信器が住戸外へ出たと判断したら、前記警報発報機能が能動となる警戒モードへ移行させることを特徴とするインターホンシステム。 An intercom having an entrance cordless handset for a visitor to call a resident and making a call, and a living room base phone for responding to a call from the entrance cordless handset, a security sensor connected to the living room base phone, etc. An intercom system including an alarm detection function that performs an alarm operation when the abnormality detection unit detects an abnormality.
A portable transceiver that can be carried by a resident and emits a predetermined radio wave is provided, and the entrance cordless handset measures the wireless radio communication means that communicates with the portable transceiver, and the radio wave intensity received from the portable transceiver. Have a handset radio wave intensity measuring means,
Furthermore, the intercom has an outing determination means for determining that the portable transceiver has gone out of a dwelling unit when a change in the measurement value of the handset radio wave intensity measurement means satisfies a certain condition,
If the said going-out determination means judges that the said portable transmitter / receiver went out of a dwelling unit, it will transfer to the alert mode in which the said alarm alert function becomes active, The intercom system characterized by the above-mentioned. 前記外出判定手段は、前記子機電波強度測定手段の測定値が上昇した後、所定量下降したら前記携帯送受信器が住戸外へ出たと判断することを特徴とする請求項１記載のインターホンシステム。 2. The intercom system according to claim 1, wherein the outing determination unit determines that the portable transceiver has gone out of the dwelling unit when the measured value of the handset radio wave intensity measurement unit increases and then decreases by a predetermined amount. 前記居室親機は、前記携帯送受信器と通信する親機無線通信手段、及び前記携帯送受信器から受信した電波強度を測定する親機電波強度測定手段を有し、
前記外出判定手段は、前記子機電波強度測定手段、及び前記親機電波強度測定手段の測定値の変化が一定の条件を満たしたら、前記携帯送受信器が住戸外へ出たと判断することを特徴とする請求項１記載のインターホンシステム。 The living room base unit includes a base unit wireless communication unit that communicates with the mobile transceiver, and a base unit radio field intensity measuring unit that measures a radio field intensity received from the mobile transceiver.
The outing determination means determines that the portable transceiver has gone out of a dwelling unit when a change in measured values of the slave unit radio field intensity measurement unit and the master unit radio field intensity measurement unit satisfies a certain condition. The intercom system according to claim 1. 前記外出判定手段は、前記親機電波強度測定手段の測定値が所定の値を下回った状態で、前記子機電波強度測定手段の測定値が上昇した後、所定量下降したら前記携帯送受信器が住戸外へ出たと判断することを特徴とする請求項３記載のインターホンシステム。 In the state where the measured value of the base unit radio wave intensity measuring unit is lower than a predetermined value, the portable transmitter / receiver is connected when the measured value of the slave unit radio field strength measuring unit rises and then decreases by a predetermined amount. 4. The intercom system according to claim 3, wherein the intercom system is determined to have gone out of a dwelling unit. 前記居室親機は、前記警報発報機能を能動とする警戒設定ボタンと、前記警戒設定ボタン操作を受けて、一定時間経過後に前記警戒モードへ移行させるためのタイマとを有し、
前記外出判定手段は、前記警戒設定ボタンが操作されて、前記一定時間が経過するまでの間に前記携帯送受信器が住戸外へ出たと判断したら、前記一定時間の経過を待たずに前記警戒モードへ移行させることを特徴とする請求項１乃至４の何れかに記載のインターホンシステム。 The living room base unit has a warning setting button for activating the alarm notification function, and a timer for shifting to the warning mode after a certain period of time in response to the operation of the warning setting button,
The outing determination means determines that the mobile transceiver has gone out of the dwelling unit until the fixed time has elapsed after the warning setting button is operated, and the warning mode is not waited for the fixed time to elapse. The intercom system according to any one of claims 1 to 4, wherein the intercom system is moved to. 前記居室親機は、前記携帯送受信器を起動させるための携帯送受信器起動手段を有し、
前記携帯送受信器起動手段は、前記警戒設定ボタンが操作されたら前記親機無線通信手段から起動信号を発信させ、前記携帯送受信器を起動して前記所定の電波の発信を開始させることを特徴とする請求項５記載のインターホンシステム。 The living room master has a portable transceiver activation means for activating the portable transceiver.
The portable transmitter / receiver starting means transmits an activation signal from the master wireless communication means when the warning setting button is operated, and activates the portable transceiver to start transmission of the predetermined radio wave. The intercom system according to claim 5. 前記携帯送受信器が発信する前記所定の電波は自身のＩＤ情報を含む一方、前記玄関子機は、前記携帯送受信器から受信した電波が前記ＩＤを認識するＩＤ認識手段を有し、前記外出判定手段は、前記ＩＤ認識手段が前記ＩＤを認識しなければ外出の判断を行わないことを特徴とする請求項１乃至６の何れかに記載のインターホンシステム。 While the predetermined radio wave transmitted by the portable transceiver includes its own ID information, the entrance cordless handset includes ID recognition means for recognizing the ID by the radio wave received from the portable transceiver. The intercom system according to any one of claims 1 to 6, wherein the means does not make a determination of going out unless the ID recognition means recognizes the ID. 前記外出判定手段は、前記警戒モードへの移行を実施後、前記警戒モード移行完了を前記携帯送受信器に通知するためのアンサー信号を前記子機無線通信手段から送信させると共に、前記携帯送受信器は、前記インターホンが前記警戒モードに移行したことを報知する報知手段、及び前記アンサー信号を受けて前記報知手段を報知動作させる報知制御手段を有することを特徴とする請求項１乃至７の何れかに記載のインターホンシステム。 The outing determination means, after carrying out the transition to the warning mode, causes the portable radio transceiver to transmit an answer signal for notifying the portable transceiver of the completion of the warning mode transition, and the portable transceiver 8. The apparatus according to claim 1, further comprising notification means for notifying that the intercom has shifted to the alert mode, and notification control means for receiving the answer signal and notifying the notification means. The listed intercom system.
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