JPH10178635A - Video intercom device - Google Patents
Video intercom deviceInfo
- Publication number
- JPH10178635A JPH10178635A JP35447496A JP35447496A JPH10178635A JP H10178635 A JPH10178635 A JP H10178635A JP 35447496 A JP35447496 A JP 35447496A JP 35447496 A JP35447496 A JP 35447496A JP H10178635 A JPH10178635 A JP H10178635A
- Authority
- JP
- Japan
- Prior art keywords
- camera
- monitor
- entrance
- signal
- unit
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Landscapes
- Interconnected Communication Systems, Intercoms, And Interphones (AREA)
- Closed-Circuit Television Systems (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、映像表示する機能
を持つインターホンのカメラ付き玄関子機への供給電源
と、室内モニタ親機のモニタへの電源の制御を行うテレ
ビドアホン装置に関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a television door phone device for controlling power supply to an intercom unit with a camera of an intercom having a function of displaying an image, and power supply to a monitor of an indoor monitor master unit. .
【０００２】[0002]
【従来の技術】従来、カメラなし玄関子機をモニタ親機
へ接続する場合は、室内モニタ親機に子機のカメラの有
無を設定するスイッチを設け、このスイッチの切り替え
によって、カメラ付き玄関子機への供給電源と、モニタ
親機の映像表示手段の電源の制御を行っていた。2. Description of the Related Art Conventionally, in the case where an entrance slave unit without a camera is connected to a parent monitor unit, an indoor monitor parent unit is provided with a switch for setting the presence or absence of a camera of the slave unit. The control of the power supply to the device and the power supply of the image display means of the parent monitor were performed.
【０００３】また、公開特平８−１５４１３２号に示す
ように、玄関子機と親機との間に玄関子機接続アダプタ
を設けて、玄関子機のカメラの有無を自動検出するよう
にしていた。Further, as disclosed in Japanese Patent Publication No. 8-154132, an entrance cordless handset connection adapter is provided between the entrance cordless handset and the master handset to automatically detect the presence or absence of a camera of the entrance cordless handset. Was.
【０００４】[0004]
【発明が解決しようとする課題】しかしながら、このよ
うな従来の方式では、カメラの有無を設定するスイッチ
の設定を誤ると、カメラなし玄関子機が接続されている
のに室内モニタ親機の映像表示手段に電源が供給されて
ノイズが表示されてしまったり、逆にカメラ付き玄関子
機が接続されていても映像が表示されないという問題が
あった。However, in such a conventional system, if the setting of the switch for setting the presence or absence of the camera is incorrectly set, the video of the indoor monitor main unit is connected to the camera-less entrance unit. There has been a problem that power is supplied to the display means and noise is displayed, and conversely, an image is not displayed even when an entrance device with a camera is connected.
【０００５】更に、インターホンとは無関係の機器を誤
って玄関子機として接続した場合には、設定スイッチを
カメラ有りで設定してしまうと、接続された機器へ電源
が供給されてしまい、機器を破壊するおそれがあった。
また、公開特平−１５４１３２号に示すように玄関子機
接続アダプタを設ける方法では、コストが高くなってし
まう。Further, when a device unrelated to the intercom is erroneously connected as a front-end device, if the setting switch is set with a camera, power is supplied to the connected device, and the device is disconnected. There was a risk of destruction.
In addition, as shown in Japanese Patent Publication No. 154132/1990, the method of providing an entrance device connection adapter increases costs.
【０００６】本発明は上記の問題を解決するものであ
り、室内モニタ親機に接続された玄関子機がカメラ付き
玄関子機か否かを自動的に判定し、かつカメラ付き玄関
子機以外の玄関子機が接続された時は該玄関子機への給
電とモニタへの給電を自動的に切断してコストの低減を
可能にしたテレビドアホン装置を提供することを目的と
する。SUMMARY OF THE INVENTION The present invention solves the above-mentioned problem, and automatically determines whether or not an entrance slave unit connected to an indoor monitor master unit is an entrance slave unit with a camera. It is an object of the present invention to provide a TV intercom apparatus capable of reducing the cost by automatically disconnecting the power supply to the entrance terminal and the power supply to the monitor when the entrance terminal is connected.
【０００７】[0007]
【課題を解決するための手段】この課題を解決するため
に本発明は、カメラ付き玄関子機及びカメラなし玄関子
機の少なくとも一方が接続される室内モニタ親機を有す
るテレビドアホン装置において、前記室内モニタ親機
は、前記カメラ付き玄関子機で撮像された映像を表示す
るモニタと、前記カメラ付き玄関子機またはカメラなし
玄関子機の着信信号及び室内側からのカメラ付き玄関子
機の監視指示信号に対応する制御信号を出力する制御手
段と、前記制御手段からカメラ付き玄関子機の着信信号
または監視指示信号に対応する制御信号により前記モニ
タに電力を供給するモニタ給電手段と、前記制御手段か
らカメラ付き玄関子機の着信信号または監視指示信号に
対応する制御信号によりカメラ付き玄関子機を前記モニ
タに切り替え接続するモニタ切り替え手段と、前記制御
手段からカメラ付き玄関子機の着信信号または監視指示
信号に対応する制御信号により前記カメラ付き玄関子機
に電力を供給するカメラ給電手段と、前記制御手段から
カメラ付き玄関子機またはカメラなし玄関子機の着信信
号に対応する制御信号により前記室内モニタ親機に接続
される前記カメラ付き玄関子機またはカメラなし玄関子
機に切り替え接続するドアホン切り替え手段とを備えて
なるものである。SUMMARY OF THE INVENTION In order to solve this problem, the present invention relates to a television intercom apparatus having an indoor monitor master unit to which at least one of a camera-equipped entrance device and a camera-less entrance device is connected. The indoor monitor base unit is a monitor that displays an image captured by the camera-equipped front-end unit, and monitors the incoming signal of the camera-side front-end unit or the camera-less front-end unit and the camera-side front end unit from the indoor side. Control means for outputting a control signal corresponding to an instruction signal; monitor power supply means for supplying power to the monitor by a control signal corresponding to an incoming signal of a front door with camera or a monitoring instruction signal from the control means; Means for switching the camera-equipped entrance device to the monitor by a control signal corresponding to an incoming signal of the camera-equipped entrance device or a monitoring instruction signal. Monitor switching means, camera power supply means for supplying power from the control means to the camera-equipped entrance device with a control signal corresponding to an incoming signal of the camera-equipped entrance device or a monitoring instruction signal, and a camera-equipped entrance device from the control means. Doorphone switching means for switching and connecting to the camera-equipped entrance terminal or the camera-less entrance terminal connected to the indoor monitor parent device by a control signal corresponding to an incoming signal of the child device or the entrance terminal without camera. Things.
【０００８】これにより、室内モニタ親機に接続された
玄関子機がカメラ付き玄関子機か否かを自動的に判定で
きるとともに、かつカメラ付き玄関子機以外の玄関子機
が接続された時は該玄関子機への給電とモニタへの給電
を自動的に切断することができる。[0008] With this, it is possible to automatically determine whether or not the entrance slave unit connected to the indoor monitor master unit is a camera-equipped entrance slave unit, and to determine whether an entrance slave unit other than the camera-equipped entrance slave unit is connected. Can automatically cut off the power supply to the entrance cordless handset and the power supply to the monitor.
【０００９】[0009]
【発明の実施の形態】本発明の請求項１に記載の発明
は、カメラ付き玄関子機及びカメラなし玄関子機の少な
くとも一方が接続される室内モニタ親機を有するテレビ
ドアホン装置であって、前記室内モニタ親機は、前記カ
メラ付き玄関子機で撮像された映像を表示するモニタ
と、前記カメラ付き玄関子機またはカメラなし玄関子機
の着信信号及び室内側からのカメラ付き玄関子機の監視
指示信号に対応する制御信号を出力する制御手段と、前
記制御手段からカメラ付き玄関子機の着信信号または監
視指示信号に対応する制御信号により前記モニタに電力
を供給するモニタ給電手段と、前記制御手段からカメラ
付き玄関子機の着信信号または監視指示信号に対応する
制御信号によりカメラ付き玄関子機を前記モニタに切り
替え接続するモニタ切り替え手段と、前記制御手段から
カメラ付き玄関子機の着信信号または監視指示信号に対
応する制御信号により前記カメラ付き玄関子機に電力を
供給するカメラ給電手段と、前記制御手段からカメラ付
き玄関子機またはカメラなし玄関子機の着信信号に対応
する制御信号により前記室内モニタ親機に接続される前
記カメラ付き玄関子機またはカメラなし玄関子機に切り
替え接続するドアホン切り替え手段とを備えてなるもの
である。DESCRIPTION OF THE PREFERRED EMBODIMENTS The invention according to claim 1 of the present invention is a television door phone device having an indoor monitor master unit to which at least one of a camera-equipped entrance device and a camera-less entrance device is connected, The indoor monitor master unit is a monitor that displays an image captured by the camera-equipped entrance device, and an incoming signal of the camera-equipped entrance device or a camera-less entrance device and a camera-equipped entrance device from the indoor side. A control unit that outputs a control signal corresponding to a monitoring instruction signal; a monitor power supply unit that supplies power to the monitor by a control signal corresponding to an incoming signal or a monitoring instruction signal of the camera-equipped entrance terminal from the control unit; A monitor switch for switching and connecting the camera-equipped entrance device to the monitor by a control signal corresponding to an incoming signal of the camera-equipped entrance device or a monitoring instruction signal from the control means. Replacement means, camera power supply means for supplying power to the camera-equipped entrance device with a control signal corresponding to an incoming signal or a monitoring instruction signal of the camera-equipped entrance device from the control means, and a camera-equipped entrance device from the control means. And a doorphone switching means for switching and connecting to the camera-equipped entrance device or the camera-less entrance device connected to the indoor monitor master device by a control signal corresponding to an incoming signal of the device or the cameraless entrance device. It is.
【００１０】本発明の請求項２に記載の発明は、カメラ
付き玄関子機からの映像の入力が正常であるかどうかを
判定し、その判定結果を制御手段に出力する映像入力判
定手段を更に備え、前記映像入力判定手段が正常と判断
した時は前記制御手段によりモニタ及びカメラ付き玄関
子機のそれぞれに給電するようにモニタ給電手段及びカ
メラ給電手段を制御する構成にしたものである。[0010] The invention according to claim 2 of the present invention further comprises an image input judging means for judging whether the input of the image from the camera-equipped entrance device is normal and outputting the judgment result to the control means. The control means controls the monitor power supply means and the camera power supply means such that the control means supplies power to each of the monitor and the camera-equipped entrance device.
【００１１】これにより、室内モニタ親機に、カメラ付
き玄関子機が接続されていない場合に、玄関子機からの
信号を映像入力判定手段で受信することにより、カメラ
付き玄関子機が接続されていないことを接続機器の設定
スイッチなどを設けることなく自動的に判定し、制御手
段がカメラ給電手段を制御してカメラ付き玄関子機への
供給電源を切断することで、不要な電源の供給停止を自
動で行うことができ、カメラ付き玄関子機として他の機
器を誤って接続した場合でも、接続された機器が過剰な
電源供給によって破壊されることを防止することができ
る。更に、カメラ付き玄関子機が接続されていないこと
を判定した場合に、カメラ付き玄関子機のための電源切
断と共に、制御手段が室内モニタ親機のモニタ給電手段
を制御してモニタへの供給電源を切断し、室内モニタ親
機のモニタにノイズが表示されることを防止することが
できる。また、カメラなし玄関子機が接続されている場
合に、室内側から玄関を監視する指示を制御手段が受け
ると、カメラ付き玄関子機のための電源とモニタの電源
を供給し、ドアホン切り替え手段を制御してカメラ付き
玄関子機へ一旦接続をするが、カメラ付き玄関子機が接
続されていないことを接続機器の設定スイッチなどを設
けることなく自動的に判定し、制御手段がカメラ給電手
段とモニタ給電手段を制御してカメラ付き玄関子機への
供給電源とモニタへの供給電源を切断するとともにドア
ホン切り替え手段を制御してカメラなし玄関子機へ接続
することができる。With this arrangement, when the camera-equipped entrance device is not connected to the indoor monitor master device, the signal from the entrance device is received by the video input judging means, whereby the camera-equipped entrance device is connected. Is automatically determined without providing a setting switch for the connected device, and the control unit controls the camera power supply unit to cut off the power supply to the camera-equipped entrance device, thereby supplying unnecessary power. Stopping can be performed automatically, and even if another device is mistakenly connected as a camera-equipped entrance device, it is possible to prevent the connected device from being damaged by excessive power supply. Further, when it is determined that the camera-equipped entrance device is not connected, the control means controls the monitor power supply device of the indoor monitor master device to supply the power to the monitor together with the power-off for the camera-emission device. By turning off the power, it is possible to prevent noise from being displayed on the monitor of the indoor monitor master unit. Also, when the control unit receives an instruction to monitor the entrance from the indoor side when the entrance unit without camera is connected, the control unit supplies the power for the entrance unit with camera and the power supply of the monitor, and the intercom switching unit. Is connected to the camera-equipped entrance device, but automatically judges that the camera-equipped entrance device is not connected without providing a setting switch or the like of the connected device, and the control means supplies the camera power supply means. By controlling the power supply means to the monitor and the monitor, the power supply to the camera-equipped entrance device and the power supply to the monitor can be cut off, and the intercom switching device can be controlled to connect to the camera-less entrance device.
【００１２】本発明の請求項３に記載の発明は、カメラ
付き玄関子機及びカメラなし玄関子機の少なくとも一方
が接続される室内モニタ親機を有するテレビドアホン装
置であって、前記室内モニタ親機は、前記カメラ付き玄
関子機で撮像された映像を表示するモニタと、着信の行
われた前記カメラ付き玄関子機の映像信号から同期信号
のドロップアウトを検出するドロップアウト検出手段
と、前記カメラ付き玄関子機またはカメラなし玄関子機
の着信信号及び室内側からのカメラ付き玄関子機の監視
指示信号に対応する制御信号を出力するとともに前記ド
ロップアウト検出手段からの同期信号の一定時間内のカ
ウント閾値から映像信号のない状態、着信中の玄関子機
からの再着信の状態及びカメラ付き玄関子機が接続され
ていない状態を判定する判定制御手段と、前記判定制御
手段からカメラ付き玄関子機の着信信号または監視指示
信号に対応する制御信号により前記モニタに電力を供給
するとともに前記判定結果により前記モニタへの給電を
停止するモニタ給電手段と、前記制御手段からカメラ付
き玄関子機の着信信号または監視指示信号に対応する制
御信号によりカメラ付き玄関子機を前記モニタに切り替
え接続するモニタ切り替え手段と、前記制御手段からカ
メラ付き玄関子機の着信信号または監視指示信号に対応
する制御信号により前記カメラ付き玄関子機に電力を供
給するとともに前記判定結果により前記カメラ付き玄関
子機への給電を停止するカメラ給電手段と、前記制御手
段からカメラ付き玄関子機またはカメラなし玄関子機の
着信信号に対応する制御信号により前記室内モニタ親機
に接続される前記カメラ付き玄関子機またはカメラなし
玄関子機に切り替え接続するドアホン切り替え手段とを
備えてなるものであり、室内モニタ親機に、カメラ付き
玄関子機が接続されていない場合に、玄関子機からの信
号をドロップアウト検出手段で受信し、判定制御手段が
ドロップアウト検出手段から入力される同期信号の一定
時間内のカウンタのしきい値から、信号がない状態と、
着信中の玄関子機からの再着信の状態と、カメラ付き玄
関子機が接続されていない状態とを判定し、カメラ給電
手段を制御してカメラ付き玄関子機への供給電源を切断
することで、映像入力判定手段を別途設けることなく、
カメラなし玄関子機が接続されている場合の不要な電源
の供給停止を自動で行うことができ、玄関子機として他
の機器を誤って接続した場合でも、接続された機器が過
剰な電源供給によって破壊されることを防止できる。更
に、カメラ付き玄関子機が接続されていないことを判定
した場合に、カメラ付き玄関子機のための電源切断と共
に、判定制御手段が室内モニタ親機のモニタ給電手段を
制御してモニタへの供給電源を切断し、室内モニタ親機
のモニタにノイズが表示されることを防止することがで
きる。また、カメラなし玄関子機が接続されている場合
に、室内側から玄関を監視する指示を判定制御手段が受
けると、カメラ付き玄関子機のための電源とモニタの電
源を供給し、ドアホン切り替え手段を制御してカメラ付
き玄関子機へ一旦接続をするが、カメラ付き玄関子機が
接続されていないことを接続機器の設定スイッチなどを
設けることなく自動的に判定し、判定制御手段がカメラ
給電手段とモニタ給電手段を制御してカメラ付き玄関子
機への供給電源とモニタへの供給電源を切断するととも
にドアホン切り替え手段を制御してカメラなし玄関子機
へ接続することができる。According to a third aspect of the present invention, there is provided a television intercom apparatus having an indoor monitor master unit to which at least one of a camera-equipped entrance slave unit and a camera-less entrance slave unit is connected. A monitor that displays a video imaged by the camera-equipped entrance device, a drop-out detection unit that detects a synchronization signal drop-out from a video signal of the camera-equipped entrance device that has received an incoming call, It outputs a control signal corresponding to the incoming signal of the camera-equipped entrance terminal or the camera-less entrance terminal and the monitoring instruction signal of the camera-equipped entrance terminal from the indoor side, and within a fixed time of the synchronization signal from the dropout detection means. The state of no video signal, the state of re-incoming call from the incoming handset and the state of no camera-connected handset from the count threshold of A determination control unit that supplies power to the monitor by a control signal corresponding to an incoming signal or a monitoring instruction signal of the camera-equipped entrance terminal from the determination control unit, and stops power supply to the monitor based on the determination result. Power supply means, monitor switching means for switching the camera-equipped entrance device to the monitor by a control signal corresponding to an incoming signal of the camera-equipped entrance device or a monitoring instruction signal from the control device, and a camera-equipped entrance device from the control device; A camera power supply means for supplying power to the camera-equipped entrance terminal with a control signal corresponding to an incoming signal or a monitoring instruction signal of the child device, and stopping power supply to the camera-equipment entrance device based on the determination result; From the means by the control signal corresponding to the incoming signal of the camera-equipped entrance terminal or camera-less entrance terminal. A doorphone switching means for switching and connecting to the camera-equipped entrance slave unit or the camera-less entrance slave unit connected to the indoor monitor master unit, wherein the camera-equipped entrance slave unit is connected to the indoor monitor master unit. If not, the signal from the cordless handset is received by the dropout detection means, and the determination control means determines that there is no signal from the threshold value of the counter within a predetermined time of the synchronization signal input from the dropout detection means. When,
Judgment of the state of re-incoming call from the incoming handset and the state where the camera-mounted handset is not connected, and controlling the camera power supply means to cut off the power supply to the camera-mounted handset. Therefore, without separately providing a video input determination unit,
Unnecessary power supply can be automatically stopped when a cameraless front-end unit is connected, and even if another device is accidentally connected as a front-end unit, the connected device may be supplied with excessive power. Can be prevented from being destroyed. Further, when it is determined that the camera-equipped entrance device is not connected, the determination control means controls the monitor power supply means of the indoor monitor master device and supplies power to the monitor together with the power-off for the camera-emission entrance device. By cutting off the power supply, it is possible to prevent noise from being displayed on the monitor of the indoor monitor master unit. When the judgment control unit receives an instruction to monitor the entrance from the indoor side when the entrance device without a camera is connected, the power supply for the entrance device with the camera and the power of the monitor are supplied, and the doorphone is switched. Controls the means and once connects to the camera-equipped entrance device, but automatically judges that the camera-equipped entrance device is not connected without providing a setting switch or the like of the connected device. The power supply means and the monitor power supply means can be controlled to cut off the power supply to the camera-equipped entrance device and the monitor, and to control the intercom switching device to connect to the cameraless entrance device.
【００１３】以下、本発明の実施の形態について図１か
ら図３を用いて説明する。An embodiment of the present invention will be described below with reference to FIGS.
【００１４】（実施に形態１）図１は、本発明の実施の
形態１におけるカメラドアホン装置の構成を示すブロッ
ク図である。図１において、室内モニタ親機１２の子機
接続端子１２１〜１２３のいずれか１つには、第１カメ
ラ付き玄関子機１と、第２カメラ付き玄関子機２または
カメラなし玄関子機３のいずれか一台が接続されてい
る。(Embodiment 1) FIG. 1 is a block diagram showing a configuration of a camera intercom apparatus according to Embodiment 1 of the present invention. In FIG. 1, any one of the slave unit connection terminals 121 to 123 of the indoor monitor master unit 12 has a first camera-equipped entrance slave unit 1 and a second camera-equipped entrance slave unit 2 or a camera-less entrance slave unit 3. One of them is connected.
【００１５】室内モニタ親機１２は、第１カメラ付き玄
関子機１または第２カメラ付き玄関子機２のカメラ１１
１または２１１で撮像された映像を表示するモニタ４、
このモニタ４に電力を供給するモニタ給電手段５、第１
カメラ付き玄関子機１と第２カメラ付き玄関子機２また
はカメラなし玄関子機３からの着信信号や室内からの第
１カメラ付き玄関子機１または第２カメラ付き玄関子機
２の監視指示信号及び後述する映像入力判定手段１０か
らの判定信号を受信して給電部及び各切替部を制御する
制御手段６、制御手段６からの制御信号により第１カメ
ラ付き玄関子機１または第２カメラ付き玄関子機２の接
続された子機接続端子１２１及び１２２のいずれかをモ
ニタ４に切り替え接続するモニタ切り替え手段７、制御
手段６により制御され、子機接続端子１２１または１２
２に接続された第１カメラ付き玄関子機１または第２カ
メラ付き玄関子機２に電力を供給するカメラ給電手段
８、制御手段６からの制御信号によりモニタ切り替え手
段７または子機接続端子１２３に切り替え接続するドア
ホン切り替え手段９、モニタ切り替え手段７及びドアホ
ン切り替え手段９またはドアホン切り替え手段９を介し
て玄関子機からの映像信号の有無または異常を判定する
映像入力判定手段１０を備えている。The indoor monitor master unit 12 is a camera 11 of the first camera-equipped entrance device 1 or the second camera-equipped entrance device 2.
A monitor 4 for displaying the video imaged at 1 or 211,
The monitor power supply means 5 for supplying power to the monitor 4,
Incoming signals from the camera-equipped entrance device 1 and the second camera-equipped entrance device 2 or the camera-less entrance device 3 and instructions for monitoring the first camera-equipped entrance device 1 or the second camera-equipped entrance device 2 from the room Control means 6 for receiving a signal and a determination signal from a video input determination means 10 to be described later to control the power supply unit and each switching unit, and a first camera-equipped entrance device 1 or a second camera according to a control signal from the control means 6 The monitor switching means 7 for switching and connecting any of the slave unit connection terminals 121 and 122 of the attached slave unit 2 to the monitor 4 and the control unit 6 to control the slave unit connection terminals 121 or 12
A camera power supply means 8 for supplying power to the first camera-equipped entrance device 1 or the second camera-equipped entrance device 2 connected to the camera 2; And a video input determination means 10 for determining whether or not there is a video signal from the entrance device via the doorphone switching means 9 or the doorphone switching means 9 or the abnormality.
【００１６】この構成において、第１カメラ付き玄関子
機１が呼び出しを行うと、制御手段６に第１カメラ付き
玄関子機１の着信信号が入力され、その信号を受信した
制御手段６はカメラ切り替え手段７を(a) 側に切り替
え、ドアホン切り替え手段９を(c) 側に切り替える。ま
た、カメラ給電手段８を制御して第１カメラ付き玄関子
機１へ電力を供給し、更にモニタ給電手段５を制御して
モニタ４へ電力を供給する。In this configuration, when the first camera-equipped entrance device 1 makes a call, an incoming signal of the first camera-equipped entrance device 1 is input to the control device 6, and the control device 6 which has received the signal receives the incoming signal. The switching means 7 is switched to the (a) side, and the intercom switching means 9 is switched to the (c) side. Further, it controls the camera power supply means 8 to supply power to the first camera-equipped entrance device 1, and further controls the monitor power supply means 5 to supply power to the monitor 4.
【００１７】第１カメラ付き玄関子機１からの映像信号
はカメラ切り替え手段７とドアホン切り替え手段９を経
て映像入力判定手段１０に入力される。映像信号の入力
が正常であった場合は、映像入力判定手段１０から制御
手段６に映像信号の入力が異常であることの通知は行わ
れない。映像信号の入力が異常である通知を受けなかっ
た制御手段６は、モニタ給電手段５とカメラ給電手段８
を制御しないので、モニタ４と第１カメラ付き玄関子機
１への電力供給は継続される。またモニタ４には、第１
カメラ付き玄関子機１からの映像信号がカメラ切り替え
手段７を経て入力されているので、モニタ給電手段５か
ら電力が供給されることにより、第１カメラ付き玄関子
機１からの映像が表示される。A video signal from the first camera-equipped entrance device 1 is input to a video input determining device 10 via a camera switching device 7 and a door phone switching device 9. When the input of the video signal is normal, the video input determination unit 10 does not notify the control unit 6 that the input of the video signal is abnormal. The control unit 6 that has not received the notification that the input of the video signal is abnormal includes the monitor power supply unit 5 and the camera power supply unit 8.
Is not controlled, power supply to the monitor 4 and the first camera-equipped entrance device 1 is continued. The monitor 4 also has the first
Since the video signal from the camera-equipped entrance device 1 is input via the camera switching means 7, the image from the first camera-equipped entrance device 1 is displayed by supplying power from the monitor power supply means 5. You.
【００１８】室内モニタ親機１２に第２カメラ付き玄関
子機２が接続されている場合に、第２カメラ付き玄関子
機２が呼び出しを行うと、制御手段６に第２カメラ付き
玄関子機２の着信信号が入力され、その信号を受信した
制御手段６はカメラ切り替え手段７を(b) 側に切り替
え、ドアホン切り替え手段９を(c) 側に切り替える。ま
た、カメラ給電手段８を制御して第２カメラ付き玄関子
機２へ電力を供給し、モニタ給電手段５を制御してモニ
タ４へ電力を供給する。When the second terminal with camera 2 makes a call when the second terminal with camera 2 is connected to the indoor monitor base unit 12, the control means 6 sends the second terminal with camera to the indoor monitor base unit 12. 2 receives the incoming signal and switches the camera switching means 7 to the (b) side and the intercom switching means 9 to the (c) side. Further, it controls the camera power supply means 8 to supply power to the second camera-equipped entrance device 2, and controls the monitor power supply means 5 to supply power to the monitor 4.
【００１９】第２カメラ付き玄関子機２からの映像信号
はカメラ切り替え手段７とドアホン切り替え手段９を経
て映像入力判定手段１０に入力される。映像信号の入力
が正常であった場合は、映像入力判定手段１０から制御
手段６に映像信号の入力が異常であることの通知は行わ
れない。映像信号の入力が異常である通知を受けなかっ
た制御手段６は、モニタ給電手段５とカメラ給電手段８
を制御しないので、モニタ４と第１カメラ付き玄関子機
１への電力供給は継続される。モニタ４には、第２カメ
ラ付き玄関子機２からの映像信号がカメラ切り替え手段
７を経て入力されているので、モニタ給電手段５から電
力が供給されることにより、第２カメラ付き玄関子機２
からの映像が表示される。A video signal from the second camera-equipped entrance device 2 is input to the video input determining device 10 via the camera switching device 7 and the doorphone switching device 9. When the input of the video signal is normal, the video input determination unit 10 does not notify the control unit 6 that the input of the video signal is abnormal. The control unit 6 that has not received the notification that the input of the video signal is abnormal includes the monitor power supply unit 5 and the camera power supply unit 8.
Is not controlled, power supply to the monitor 4 and the first camera-equipped entrance device 1 is continued. Since the video signal from the second camera-equipped entrance device 2 is input to the monitor 4 via the camera switching means 7, the power is supplied from the monitor power supply means 5 to the second camera-equipped entrance device. 2
Is displayed.
【００２０】室内モニタ親機１２にカメラなし玄関子機
３が接続されている場合に、カメラなし玄関子機３が呼
び出しを行うと、制御手段６にカメラなし玄関子機３の
着信信号が入力され、その信号を受信した制御手段６は
カメラ切り替え手段７を(a)側に切り替え、ドアホン切
り替え手段９を(d) 側に切り替える。また、カメラ給電
手段８を制御してカメラなし玄関子機３への電力の供給
を停止し、かつモニタ給電手段５を制御してモニタ４へ
の電力の供給を停止する。When the front entrance unit 3 without a camera is connected to the indoor monitoring parent unit 12 and a call is made by the front entrance unit 3 without a camera, an incoming signal of the front entrance unit 3 without a camera is inputted to the control means 6. Then, upon receiving the signal, the control means 6 switches the camera switching means 7 to the (a) side and switches the doorphone switching means 9 to the (d) side. In addition, the control unit controls the camera power supply unit 8 to stop the supply of power to the cameraless entrance terminal 3, and controls the monitor power supply unit 5 to stop the supply of power to the monitor 4.
【００２１】室内モニタ親機１２の第２カメラ付き玄関
子機２が接続されるべき箇所に、誤ってカメラなし玄関
子機を接続し、このカメラなし玄関子機から呼び出しを
行うと、制御手段６にカメラ付き玄関子機２の着信信号
が入力され、その信号を受信した制御手段６はカメラ切
り替え手段７を(b) 側に切り替え、ドアホン切り替え手
段９を(c) 側に切り替える。そして、カメラ給電手段８
を制御して接続された玄関子機へ電力を供給し、モニタ
給電手段５を制御してモニタ４へ電力を供給するが、映
像入力判定手段１０に映像信号は入力されない。If a doorless cameraless camera is erroneously connected to a location of the indoor monitor master unit 12 where the second cameraless handset 2 is to be connected, and a call is made from this cameraless frontless handset, control means 6 receives the incoming signal of the camera-equipped entrance terminal 2, and upon receiving the signal, the control means 6 switches the camera switching means 7 to the (b) side and switches the intercom switching means 9 to the (c) side. And the camera feeding means 8
To supply power to the connected main unit and to control the monitor power supply means 5 to supply power to the monitor 4, but no video signal is input to the video input determination means 10.
【００２２】従って、映像入力判定手段１０では映像信
号の入力がないことを判定すると、映像入力判定手段１
０から制御手段６に映像信号の入力が異常であることを
通知する。映像信号の入力が異常である通知を受けた制
御手段６では、カメラ給電手段８を制御して電力の供給
を停止することで、誤って接続されたカメラなし玄関子
機に過剰な電力が供給されることを防止し、かつモニタ
給電手段５を制御して電力の供給を停止することでモニ
タ４にノイズが表示されてしまうことを防止する。Therefore, when the video input determination means 10 determines that there is no video signal input, the video input determination means 1
From 0, it notifies the control means 6 that the input of the video signal is abnormal. The control unit 6, which has been notified that the input of the video signal is abnormal, controls the camera power supply unit 8 to stop the supply of electric power, so that excessive power is supplied to the erroneously connected front door without camera. In addition, by controlling the monitor power supply means 5 and stopping the supply of power, the display of noise on the monitor 4 is prevented.
【００２３】同様に、室内モニタ親機１２の第１カメラ
付き玄関子機１が接続されるべき箇所に、誤ってカメラ
なし玄関子機を接続し、このカメラなし玄関子機から呼
び出しを行った場合も、制御手段６は、カメラ給電手段
８を制御して電力の供給を停止することで、誤って接続
されたカメラなし玄関子機に過剰な電力が供給されるこ
とを防止し、モニタ給電手段５を制御して電力の供給を
停止することでモニタ４にノイズが表示されてしまうこ
とを防止する。Similarly, a doorless cameraless camera is erroneously connected to a location of the indoor monitor master unit 12 to which the first cameraless handset 1 is to be connected, and a call is made from this cameraless frontless handset. Also in this case, the control unit 6 controls the camera power supply unit 8 to stop the supply of power, thereby preventing excessive power from being supplied to the erroneously connected front door without camera and supplying power to the monitor. The control of the means 5 to stop the supply of power prevents the monitor 4 from displaying noise.
【００２４】一方、制御手段６に室内側から玄関子機１
により玄関を監視する指示が入力されると、制御手段６
はカメラ切り替え手段７を(a) 側に切り替え、ドアホン
切り替え手段９を(c) 側に切り替える。そして、カメラ
給電手段８を制御して第１カメラ付き玄関子機１へ電力
を供給し、モニタ給電手段５を制御してモニタ４へ電力
を供給する。On the other hand, the control unit 6 sends the entrance child device 1 from the indoor side.
When an instruction to monitor the entrance is input by the control unit 6,
Switches the camera switching means 7 to the (a) side, and switches the intercom switching means 9 to the (c) side. Then, it controls the camera power supply means 8 to supply power to the first camera-equipped entrance device 1, and controls the monitor power supply means 5 to supply power to the monitor 4.
【００２５】第１カメラ付き玄関子機１からの映像信号
はカメラ切り替え手段７とドアホン切り替え手段９を経
て映像入力判定手段１０に入力される。映像信号の入力
が正常であった場合は、映像入力判定手段１０から制御
手段６に映像信号の入力が異常であることの通知は行わ
れない。映像信号の入力が異常である通知を受けなかっ
た制御手段６は、モニタ給電手段５とカメラ給電手段８
を制御しないので、モニタ４と第１カメラ付き玄関子機
１への電力供給は継続される。モニタ４には、第１カメ
ラ付き玄関子機１からの映像信号がカメラ切り替え手段
７を経て入力されているので、モニタ給電手段５から電
力が供給されることにより、第１カメラ付き玄関子機１
からの映像が表示される。The video signal from the first camera-equipped entrance device 1 is input to the video input determining device 10 via the camera switching device 7 and the doorphone switching device 9. When the input of the video signal is normal, the video input determination unit 10 does not notify the control unit 6 that the input of the video signal is abnormal. The control unit 6 that has not received the notification that the input of the video signal is abnormal includes the monitor power supply unit 5 and the camera power supply unit 8.
Is not controlled, power supply to the monitor 4 and the first camera-equipped entrance device 1 is continued. Since the video signal from the first camera-equipped entrance device 1 is input to the monitor 4 via the camera switching means 7, the power is supplied from the monitor power supply means 5 to the first camera-equipped entrance device. 1
Is displayed.
【００２６】室内モニタ親機１２に第２カメラ付き玄関
子機２が接続されている場合に、制御手段６に、室内側
から玄関子機２により玄関を監視する指示が入力される
と、制御手段６はカメラ切り替え手段７を(b) 側に切り
替え、ドアホン切り替え手段９を(c) 側に切り替える。
そして、カメラ給電手段８を制御して第２カメラ付き玄
関子機２へ電力を供給し、モニタ給電手段５を制御して
モニタ４へ電力を供給する。When the entrance monitor 2 with the second camera is connected to the indoor monitor 12 and an instruction to monitor the entrance by the entrance 2 is input to the control means 6 from the indoor side, control is performed. The means 6 switches the camera switching means 7 to the (b) side, and switches the intercom switching means 9 to the (c) side.
Then, it controls the camera power supply means 8 to supply power to the second camera-equipped entrance device 2, and controls the monitor power supply means 5 to supply power to the monitor 4.
【００２７】第２カメラ付き玄関子機２からの映像信号
はカメラ切り替え手段７とドアホン切り替え手段９を経
て映像入力判定手段１０に入力される。映像信号の入力
が正常であった場合は、映像入力判定手段１０から制御
手段６に映像信号の入力が異常であることの通知は行わ
れない。映像信号の入力が異常である通知を受けなかっ
た制御手段６は、モニタ給電手段５とカメラ給電手段８
を制御しないので、モニタ４と第１カメラ付き玄関子機
１への電力供給は継続される。モニタ４には、第２カメ
ラ付き玄関子機２からの映像信号がカメラ切り替え手段
７を経て入力されているので、モニタ給電手段５から電
力が供給されることにより、第２カメラ付き玄関子機２
からの映像が表示される。A video signal from the second camera-equipped entrance device 2 is input to the video input determination device 10 via the camera switching device 7 and the doorphone switching device 9. When the input of the video signal is normal, the video input determination unit 10 does not notify the control unit 6 that the input of the video signal is abnormal. The control unit 6 that has not received the notification that the input of the video signal is abnormal includes the monitor power supply unit 5 and the camera power supply unit 8.
Is not controlled, power supply to the monitor 4 and the first camera-equipped entrance device 1 is continued. Since the video signal from the second camera-equipped entrance device 2 is input to the monitor 4 via the camera switching means 7, the power is supplied from the monitor power supply means 5 to the second camera-equipped entrance device. 2
Is displayed.
【００２８】室内モニタ親機１２にカメラなし玄関子機
３が接続されている場合に、制御手段６に、室内側から
玄関子機２により玄関を監視する指示が入力されると、
制御手段６はカメラ切り替え手段７を(b) 側に切り替
え、ドアホン切り替え手段９を(c) 側に切り替える。そ
して、カメラ給電手段８を制御して第２カメラ付き玄関
子機２へ電力を供給し、モニタ給電手段５を制御してモ
ニタ４へ電力を供給するが、映像入力判定手段１０に映
像信号は入力されない。When the entrance monitor 3 without camera is connected to the indoor monitor 12 and an instruction to monitor the entrance by the entrance 2 is input to the control means 6 from the indoor side.
The control means 6 switches the camera switching means 7 to the (b) side, and switches the doorphone switching means 9 to the (c) side. Then, the camera power supply means 8 is controlled to supply power to the second camera-equipped entrance device 2, and the monitor power supply means 5 is controlled to supply power to the monitor 4. Not entered.
【００２９】従って、映像入力判定手段１０では映像信
号の入力がないことを判定すると、映像入力判定手段１
０から制御手段６に映像信号の入力が異常であることを
通知する。映像信号の入力が異常である通知を受けた制
御手段６では、ドアホン切り替え手段９を(d) 側に切り
替えることでカメラなし玄関子機３と接続することがで
き、カメラ給電手段８を制御して電力の供給を停止する
ことで、カメラなし玄関子機３に過剰な電力が供給され
ることを防止し、更にモニタ給電手段５を制御して電力
の供給を停止することでモニタ４にノイズが表示されて
しまうことを防止する。Therefore, when the video input determination means 10 determines that there is no video signal input, the video input determination means 1
From 0, it notifies the control means 6 that the input of the video signal is abnormal. When the control means 6 receives the notification that the input of the video signal is abnormal, the control means 6 switches the intercom switching means 9 to the side (d) to connect to the front-end device 3 without a camera. By stopping the supply of electric power, the excessive power is prevented from being supplied to the cameraless front-end unit 3, and the monitor power supply means 5 is controlled to stop the supply of electric power. Is prevented from being displayed.
【００３０】（実施の形態２）図２は、本発明の実施の
形態２におけるカメラドアホン装置の構成を示すブロッ
ク図である。図１において、室内モニタ親機２３の子機
接続端子２３１〜２３３のいずれか１つには、第１カメ
ラ付き玄関子機１３と、第２カメラ付き玄関子機１４ま
たはカメラなし玄関子機１５のいずれか一台が接続され
ている。(Embodiment 2) FIG. 2 is a block diagram showing a configuration of a camera intercom apparatus according to Embodiment 2 of the present invention. In FIG. 1, one of the slave unit connection terminals 231 to 233 of the indoor monitor master unit 23 has an entrance slave unit 13 with a first camera, an entrance slave unit 14 with a second camera, or an entrance slave unit 15 without a camera. One of them is connected.
【００３１】室内モニタ親機２３は、第１カメラ付き玄
関子機１３または第２カメラ付き玄関子機１４のカメラ
１３１または１４１で撮像された映像を表示するモニタ
１６、このモニタ１６に電力を供給するモニタ給電手段
１７、第１カメラ付き玄関子機１３と第２カメラ付き玄
関子機１４またはカメラなし玄関子機１５からの着信信
号や室内からの第１カメラ付き玄関子機１３または第２
カメラ付き玄関子機１４の監視指示信号及び後述するド
ロップアウト検出手段２２からの検出信号を受信して給
電部及び各切替部を制御する判定制御手段１８、判定制
御手段１８からの制御信号により第１カメラ付き玄関子
機１３または第２カメラ付き玄関子機１４の接続された
子機接続端子２３１及び２３２のいずれかをモニタ１６
に切り替え接続するカメラ切り替え手段１９、判定制御
手段１８により制御され、子機接続端子２３１または２
３２に接続された第１カメラ付き玄関子機１３または第
２カメラ付き玄関子機１４に電力を供給するカメラ給電
手段２０、判定制御手段１８からの制御信号によりカメ
ラ切り替え手段１９または子機接続端子２３３に切り替
え接続するドアホン切り替え手段２１、カメラ切り替え
手段１９及びドアホン切り替え手段２１またはドアホン
切り替え手段２１を介して第１カメラ付き玄関子機１３
と、ドアホン切り替え手段２１を介してカメラ切り替え
手段１９及びカメラなし玄関子機１５にの切り替え接続
され、着信の行われたカメラ付き玄関子機の映像信号か
ら同期信号のドロップアウトを検出するドロップアウト
検出手段２２を備えている。The indoor monitor master unit 23 is a monitor 16 for displaying an image captured by the camera 131 or 141 of the first camera-equipped entrance device 13 or the second camera-equipped entrance device 14, and supplies power to the monitor 16. Incoming signal from the monitor power supply means 17, the first camera-equipped entrance device 13 and the second camera-equipped entrance device 14 or the camera-less entrance device 15, or the first camera-equipped entrance device 13 or the second from the room.
A judgment control unit 18 that receives a monitoring instruction signal of the camera-equipped entrance device 14 and a detection signal from a dropout detection unit 22 to be described later and controls the power supply unit and each switching unit. The monitor 16 monitors any one of the slave unit connection terminals 231 and 232 to which the first slave unit with camera 13 or the second slave unit with camera 14 is connected.
Is controlled by the camera switching means 19 and the determination control means 18 for switching and connecting to the slave unit connection terminals 231 or 2
32, a camera switching unit 19 or a slave unit connection terminal according to a control signal from the camera power supply unit 20 for supplying power to the first camera-equipped entrance unit 13 or the second camera-equipped entrance unit 14 and the determination control unit 18. 233 via the doorphone switching means 21, the camera switching means 19 and the doorphone switching means 21 or the doorphone switching device 13 via the doorphone switching means 21.
Drop-out for switching between the camera switching means 19 and the camera-less entrance device 15 via the intercom switching device 21 and detecting the drop-out of the synchronization signal from the video signal of the camera-equipped entrance device receiving the incoming call. A detection unit 22 is provided.
【００３２】ドロップアウト検出手段２２は、着信が行
われた玄関子機からの再着信があった場合に同期信号監
視時間内にα回以上β回未満の同期信号を出力し、カメ
ラ付き玄関子機からの映像信号が異常であった場合には
同期信号監視時間内にβ回以上の同期信号を出力する。
そして、判定制御手段１８は、ドロップアウト検出手段
２２から入力される同期信号の一定時間内のカウント閾
値から、映像信号のない状態、着信中の玄関子機からの
再着信の状態及びカメラ付き玄関子機が接続されていな
い状態を判定する。The dropout detecting means 22 outputs a synchronizing signal of α times or more and less than β times within the synchronizing signal monitoring time when there is a re-incoming call from the entrance terminal that has received the incoming call. If the video signal from the device is abnormal, the synchronizing signal is output at least β times within the synchronizing signal monitoring time.
Then, the determination control unit 18 determines from the count threshold value of the synchronization signal input from the drop-out detection unit 22 within a predetermined time, a state where there is no video signal, a state of re-incoming call from the incoming terminal, and a door with camera. It is determined that the slave unit is not connected.
【００３３】図３は、同期信号監視時間経過時の判定制
御手段１８の動作手順を示すフローチャートである。FIG. 3 is a flowchart showing the operation procedure of the judgment control means 18 when the synchronization signal monitoring time has elapsed.
【００３４】このように構成された本実施の形態２の動
作について、図３を参照して説明する。第１カメラ付き
玄関子機１３が呼び出しを行うと、判定制御手段１８に
カメラ付き玄関子機１３の着信信号が入力され、その信
号を受信した判定制御手段１８はカメラ切り替え手段１
９を(e) 側に切り替え、ドアホン切り替え手段２１を
(g) 側に切り替える。そして、カメラ給電手段２０を制
御して第１カメラ付き玄関子機１３へ電力を供給し、モ
ニタ給電手段１７を制御してモニタ１６へ電力を供給す
る。The operation of the second embodiment configured as described above will be described with reference to FIG. When the first camera-equipped entrance terminal 13 makes a call, an incoming signal of the camera-equipped entrance device 13 is input to the judgment control unit 18, and the judgment control unit 18 that has received the signal sends the incoming signal to the camera switching unit 1.
9 to the (e) side, and intercom switch means 21
Switch to (g) side. Then, it controls the camera power supply means 20 to supply power to the first camera-equipped entrance device 13, and controls the monitor power supply means 17 to supply power to the monitor 16.
【００３５】第１カメラ付き玄関子機１３からの映像信
号はカメラ切り替え手段１９とドアホン切り替え手段２
１を経てドロップアウト検出手段に入力される。映像信
号の入力が正常であった場合は、ドロップアウト検出手
段２２から判定制御手段１８に同期信号監視時間内にβ
回以上の同期信号の入力は行われない。同期信号監視時
間内にβ回以上の同期信号の入力を受けなかった判定制
御手段１８は、モニタ給電手段１７とカメラ給電手段２
０を制御しないので、モニタ１６と第１カメラ付き玄関
子機１３への電力供給は継続される。モニタ１６には、
第１カメラ付き玄関子機１３からの映像信号がカメラ切
り替え手段１９を経て入力されているので、モニタ給電
手段１７から電力が供給されることにより、第１カメラ
付き玄関子機１３からの映像が表示される。The video signal from the first camera-equipped entrance device 13 is transmitted to the camera switching means 19 and the doorphone switching means 2.
The signal is input to the drop-out detecting means via 1. If the input of the video signal is normal, the dropout detection means 22 sends the β control signal to the determination control means 18 within the synchronization signal monitoring time.
No synchronization signal is input more than once. The determination control unit 18 that has not received the input of the synchronizing signal more than β times within the synchronizing signal monitoring time becomes the monitor feeding unit 17 and the camera feeding unit 2.
Since 0 is not controlled, power supply to the monitor 16 and the first camera-equipped entrance device 13 is continued. The monitor 16
Since the video signal from the first camera-equipped entrance device 13 is input through the camera switching device 19, the image from the first camera-equipped entrance device 13 is supplied by the power supply from the monitor power supply device 17. Is displayed.
【００３６】続いて、第１カメラ付き玄関子機１３が再
度呼び出しを行うと、判定制御手段１８にはカメラ付き
玄関子機１３の着信信号は入力されず、ドロップアウト
検出手段２２から判定制御手段１８に同期信号監視時間
内にα回以上β回未満の同期信号の入力が行われる。こ
れにより、判定制御手段１８では、同期信号監視時間内
にドロップアウト検出手段２２から同期信号の入力がα
回以上（ステップＳ１）、β回以上かを判定し（ステッ
プＳ２）、α回以上β回未満の同期信号の入力を判定し
た判定制御手段１８では、着信中である第１カメラ付き
玄関子機１３から再度呼び出しが行われたことを判定
し、ステップＳ６でドアホン切り替え手段２１は（ｈ）
側でないことを判定した後、カメラ切り替え手段１９を
(e) 側のまま保持し、かつドアホン切り替え手段２１を
(g) 側のまま保持して、モニタ１６への給電を継続し
（ステップＳ７）、第１カメラ付き玄関子機１３への給
電を継続し（ステップＳ８）、カメラ付き玄関子機１３
の着信中の状態を保持する。Subsequently, when the first camera-equipped entrance slave unit 13 calls again, the judgment control means 18 does not receive the incoming signal of the camera-equipped entrance slave unit 13, and At 18, the synchronization signal is input at least α times and less than β times within the synchronization signal monitoring time. As a result, in the determination control unit 18, the input of the synchronization signal from the dropout detection unit 22 is set to α within the synchronization signal monitoring time.
The number of times (step S1) and the number of β times or more are determined (step S2), and the determination control unit 18 that determines the input of the synchronization signal of α times or more and less than β times is used as the first camera-equipped entrance terminal with an incoming call. It is determined that the call has been made again from step 13, and in step S6 the intercom switching means 21 sets (h)
Camera switching means 19 after determining that the
(e) Hold the side and switch the intercom switch means 21
While keeping the (g) side, the power supply to the monitor 16 is continued (step S7), the power supply to the first camera-equipped entrance slave unit 13 is continued (step S8), and the camera-equipped entrance slave unit 13 is continued.
Holds the incoming state of.
【００３７】室内モニタ親機２３に第２カメラ付き玄関
子機１４が接続されている場合に、第２カメラ付き玄関
子機１４が呼び出しを行うと、判定制御手段１８にカメ
ラ付き玄関子機１４の着信信号が入力され、その信号を
受信した判定制御手段１８はカメラ切り替え手段１９を
(f) 側に切り替え、ドアホン切り替え手段２１を(g)側
に切り替える。そして、カメラ給電手段２０を制御して
第２カメラ付き玄関子機１４へ電力を供給し、モニタ給
電手段１７を制御してモニタ１６へ電力を供給する。When the second slave unit with camera 14 calls the second slave unit with camera 14 when the second slave unit 14 with camera is connected to the indoor monitor master unit 23, the judgment control means 18 causes the judgment unit 18 to make a call. Is received, the judgment control means 18 having received the signal sets the camera switching means 19
Switch to the (f) side and switch the intercom switching means 21 to the (g) side. Then, it controls the camera power supply means 20 to supply power to the second camera-equipped entrance device 14, and controls the monitor power supply means 17 to supply power to the monitor 16.
【００３８】第２カメラ付き玄関子機１４からの映像信
号はカメラ切り替え手段１９とドアホン切り替え手段２
１を経てドロップアウト検出手段に入力される。映像信
号の入力が正常であった場合は、ドロップアウト検出手
段２２から判定制御手段１８に同期信号監視時間内にβ
回以上の同期信号の入力は行われない。同期信号監視時
間内にβ回以上の同期信号の入力を受けなかった判定制
御手段１８は、モニタ給電手段１７とカメラ給電手段２
０を制御しないので、モニタ１６と第２カメラ付き玄関
子機１４への電力供給は継続される。モニタ１６には、
第２カメラ付き玄関子機１４からの映像信号がカメラ切
り替え手段１９を経て入力されているので、モニタ給電
手段１７０から電力が供給されることにより、第２カメ
ラ付き玄関子機１４からの映像が表示される。The video signal from the second camera-equipped entrance device 14 is transmitted to the camera switching means 19 and the doorphone switching means 2.
The signal is input to the drop-out detecting means via 1. If the input of the video signal is normal, the dropout detection means 22 sends the β control signal to the determination control means 18 within the synchronization signal monitoring time.
No synchronization signal is input more than once. The determination control unit 18 that has not received the input of the synchronizing signal more than β times within the synchronizing signal monitoring time becomes the monitor feeding unit 17 and the camera feeding unit 2.
Since 0 is not controlled, power supply to the monitor 16 and the second camera-equipped entrance device 14 is continued. The monitor 16
Since the video signal from the second camera-equipped entrance device 14 is input via the camera switching means 19, the video from the second camera-equipped entrance device 14 is supplied by the power supply from the monitor power supply means 170. Is displayed.
【００３９】続いて、第２カメラ付き玄関子機１４が再
度呼び出しを行うと、判定制御手段１８にはカメラ付き
玄関子機２着信信号は入力されず、ドロップアウト検出
手段２２から判定制御手段１８に同期信号監視時間内に
α回以上β回未満の同期信号の入力が行われる。上記と
同様にして、α回以上β回未満の同期信号の入力を受け
た判定制御手段１８は、着信中である第２カメラ付き玄
関子機１４から再度呼び出しが行われたことを判定し
（ステップＳ１、Ｓ２）、カメラ切り替え手段１９を
(f) 側のまま保持し、かつドアホン切り替え手段２１を
(g) 側のまま保持して、モニタ１６への給電を継続し
（ステップＳ７）、第１カメラ付き玄関子機１３への給
電を継続し（ステップＳ８）、カメラき玄関子機１４の
着信中の状態を保持する。Subsequently, when the second entrance device with camera 14 calls again, the incoming signal of the entrance device with camera 2 is not input to the judgment control means 18, and the judgment control means 18 During the synchronization signal monitoring time, the synchronization signal is input at least α times and less than β times. In the same manner as described above, the determination control unit 18 that has received the input of the synchronization signal of α times or more and less than β times determines that a call is made again from the second camera-equipped entrance terminal 14 that is receiving a call ( Steps S1 and S2), the camera switching means 19
(f) While holding the side, the doorphone switching means 21
While keeping the (g) side, the power supply to the monitor 16 is continued (step S7), the power supply to the first camera-equipped entrance slave unit 13 is continued (step S8), and the incoming call of the camera-equipped entrance slave unit 14 is received. Hold the state in.
【００４０】室内モニタ親機２３にカメラなし玄関子機
１５が接続されている場合に、カメラなし玄関子機１５
が呼び出しを行うと、判定制御手段１８にカメラなし玄
関子機の着信信号が入力され、その信号を受信した判定
制御手段１８はカメラ切り替え手段１９を(e) 側に切り
替え、ドアホン切り替え手段２１を(h) 側に切り替え
る。そして、カメラ給電手段２０を制御して電力の供給
を停止し、モニタ給電手段１７を制御して電力の供給を
停止する。When the camera-less entrance slave unit 15 is connected to the indoor monitor master unit 23, the camera-less entrance slave unit 15
Makes a call, the incoming signal of the front door without camera is input to the determination control means 18, and the determination control means 18 which has received the signal switches the camera switching means 19 to the (e) side, and switches the intercom switching means 21. Switch to (h) side. Then, the power supply is stopped by controlling the camera power supply means 20, and the power supply is stopped by controlling the monitor power supply means 17.
【００４１】続いて、カメラなし玄関子機１５が再度呼
び出しを行うと、判定制御手段１８にはカメラなし玄関
子機の着信信号は入力されず、ドロップアウト検出手段
２２から判定制御手段１８に同期信号監視時間内にα回
以上β回未満の同期信号の入力が行われる。α回以上β
回未満の同期信号の入力を受けた判定制御手段１８は、
着信中であるカメラなし玄関子機１５から再度呼び出し
が行われたことを判定し、ステップＳ６でドアホン切り
替え手段２１は（ｈ）側であると判定した後、カメラ切
り替え手段１９を(e) 側のまま保持し、かつドアホン切
り替え手段２１を(h) 側のまま保持して、モニタ給電手
段１７による給電を停止し（ステップＳ３）、カメラ給
電手段２０による給電を停止し（ステップＳ４）、カメ
ラなし玄関子機１５の着信中の状態を保持する。更に、
次のステップＳ５において、ドアホン切り替え手段２１
を（ｈ）側へ切り替える。Subsequently, when the camera-less entrance slave unit 15 calls again, the incoming signal of the camera-less entrance slave unit is not input to the judgment control unit 18, and the dropout detection unit 22 synchronizes with the judgment control unit 18. The input of the synchronization signal is performed α times or more and less than β times within the signal monitoring time. α times or more β
The determination control unit 18 receiving the input of the synchronization signal less than the number of times
It is determined that the incoming call has been made again from the camera-less entrance slave unit 15 that is receiving the call, and the doorphone switching means 21 determines that the camera is on the (h) side in step S6. While the doorphone switching means 21 is kept at the (h) side, the power supply by the monitor power supply means 17 is stopped (step S3), and the power supply by the camera power supply means 20 is stopped (step S4). None Maintains the state that the entrance slave unit 15 is receiving a call. Furthermore,
In the next step S5, the intercom switching means 21
To the (h) side.
【００４２】室内モニタ親機２３の第２カメラ付き玄関
子機１４が接続されるべき箇所に、誤ってカメラなし玄
関子機を接続し、そのカメラなし玄関子機から呼び出し
を行うと、判定制御手段１８にカメラ付き玄関子機２着
信信号が入力され、その信号を受信した判定制御手段１
８はカメラ切り替え手段１９を(f) 側に切り替え、ドア
ホン切り替え手段２１を(g) 側に切り替える。これによ
り、カメラ給電手段２０を制御して接続された玄関子機
へ電力を供給し、モニタ給電手段１７を制御してモニタ
１６へ電力を供給するが、ドロップアウト検出手段２２
には映像信号が入力されない。If a doorless camera-less unit is erroneously connected to a location of the indoor monitor base unit 23 to which the second camera-mounted doorstep 14 is to be connected, and a call is made from that cameraless doorstep, judgment control is performed. An incoming signal is input to the entrance device with camera 2 to the means 18 and the judgment control means 1 receives the signal.
8 switches the camera switching means 19 to the (f) side and switches the intercom switching means 21 to the (g) side. As a result, the camera power supply means 20 is controlled to supply power to the connected entrance terminal, and the monitor power supply means 17 is controlled to supply power to the monitor 16.
Does not receive a video signal.
【００４３】このとき、映像信号の入力が正常でないの
で、ドロップアウト検出手段２２から判定制御手段１８
に同期信号監視時間内にβ回以上の同期信号の入力が行
われる。β回以上の同期信号の入力を受けたことをステ
ップＳ２で判定した判定制御手段１８は、映像信号の入
力が異常であることを判定し、モニタ給電手段１７を制
御して電力の供給を停止し（ステップＳ３）、これによ
りモニタにノイズが表示されてしまうことを防止する。
また、カメラ給電手段２０を制御して電力の供給を停止
し（ステップＳ４）、これにより接続されたカメラなし
玄関子機に過剰な電力が供給されることを防止する。At this time, since the input of the video signal is not normal, the drop-out detecting means 22 sends the judgment control means 18
During the synchronization signal monitoring time, the synchronization signal is input at least β times. The determination control unit 18 that has determined in step S2 that the synchronization signal has been input at least β times determines that the input of the video signal is abnormal, and controls the monitor power supply unit 17 to stop the power supply. (Step S3), thereby preventing noise from being displayed on the monitor.
In addition, the power supply unit 20 controls the camera power supply unit 20 to stop the supply of power (step S4), thereby preventing excessive power from being supplied to the connected cameraless entrance device.
【００４４】同様に、室内モニタ親機２３の第１カメラ
付き玄関子機１３が接続されるべき箇所に、誤ってカメ
ラなし玄関子機を接続し、そのカメラなし玄関子機から
呼び出しを行った場合も、判定制御手段１８は、カメラ
給電手段２０を制御して電力の供給を停止することで、
接続されたカメラなし玄関子機に過剰な電力が供給され
ることを防止し、モニタ給電手段１７を制御して電力の
供給を停止することでモニタにノイズが表示されてしま
うことを防止する。Similarly, a doorless camera-less unit is erroneously connected to a location of the indoor monitor master unit 23 to which the first camera-equipped doorstep unit 13 is to be connected, and a call is made from the cameraless doorstep unit. Also in this case, the determination control unit 18 stops the power supply by controlling the camera power supply unit 20.
This prevents excessive power from being supplied to the connected cameraless entrance device, and prevents noise from being displayed on the monitor by controlling the monitor power supply unit 17 to stop supplying power.
【００４５】判定制御手段１８に室内側から玄関子機１
３により玄関を監視する指示が入力されると、判定制御
手段１８はカメラ切り替え手段１９を(e) 側に切り替
え、ドアホン切り替え手段２１を(g) 側に切り替える。
そして、カメラ給電手段２０を制御して第１カメラ付き
玄関子機１３へ電力を供給し、モニタ給電手段１７を制
御してモニタ１６へ電力を供給する。The entrance control unit 1 is transmitted to the judgment control means 18 from the indoor side.
When an instruction to monitor the entrance is input by the user 3, the determination control means 18 switches the camera switching means 19 to the (e) side and switches the intercom switching means 21 to the (g) side.
Then, it controls the camera power supply means 20 to supply power to the first camera-equipped entrance device 13, and controls the monitor power supply means 17 to supply power to the monitor 16.
【００４６】第１カメラ付き玄関子機１３からの映像信
号はカメラ切り替え手段１９とドアホン切り替え手段２
１を経てドロップアウト検出手段に入力される。映像信
号の入力が正常であった場合は、ドロップアウト検出手
段２２から判定制御手段１８に同期信号監視時間内にβ
回以上の同期信号の入力は行われない。同期信号監視時
間内にβ回以上の同期信号の入力を受けなかった判定制
御手段１８は、モニタ給電手段１７と、カメラ給電手段
２０を制御しないので、モニタ１６と、第１カメラ付き
玄関子機１３への電力供給は継続される。モニタ１６に
は、第１カメラ付き玄関子機１３からの映像信号がカメ
ラ切り替え手段１９を経て入力されているので、電力が
供給されることにより、第１カメラ付き玄関子機１３か
らの映像が表示される。The video signal from the first camera-equipped entrance device 13 is transmitted to the camera switching means 19 and the doorphone switching means 2.
The signal is input to the drop-out detecting means via 1. If the input of the video signal is normal, the dropout detection means 22 sends the β control signal to the determination control means 18 within the synchronization signal monitoring time.
No synchronization signal is input more than once. The determination control unit 18 that has not received the input of the synchronization signal more than β times within the synchronization signal monitoring time does not control the monitor power supply unit 17 and the camera power supply unit 20. Power supply to 13 is continued. Since the video signal from the first camera-equipped entrance device 13 is input to the monitor 16 via the camera switching means 19, the image from the first camera-equipped entrance device 13 is supplied by supplying power. Is displayed.
【００４７】室内モニタ親機２３に第２カメラ付き玄関
子機１４が接続されている場合に、判定制御手段１８に
室内側から玄関子機２により玄関を監視する指示が入力
されると、判定制御手段１８はカメラ切り替え手段１９
を(f) 側に切り替え、ドアホン切り替え手段２１を(g)
側に切り替える。そして、カメラ給電手段２０を制御し
て第２カメラ付き玄関子機１４へ電力を供給し、モニタ
給電手段１７を制御してモニタ１６へ電力を供給する。When the entrance monitor 14 with the second camera is connected to the indoor monitor master unit 23, when an instruction to monitor the entrance by the entrance slave unit 2 is input to the judgment control means 18 from the indoor side, the judgment is made. The control means 18 is a camera switching means 19
Is switched to the (f) side, and the doorphone switching means 21 is switched to (g).
Switch to the side. Then, it controls the camera power supply means 20 to supply power to the second camera-equipped entrance device 14, and controls the monitor power supply means 17 to supply power to the monitor 16.
【００４８】第２カメラ付き玄関子機１４からの映像信
号はカメラ切り替え手段１９とドアホン切り替え手段２
１を経てドロップアウト検出手段に入力される。映像信
号の入力が正常であった場合は、ドロップアウト検出手
段２２から判定制御手段１８に同期信号監視時間内にβ
回以上の同期信号の入力は行われない。同期信号監視時
間内にβ回以上の同期信号の入力を受けなかった判定制
御手段１８は、モニタ給電手段１７とカメラ給電手段２
０を制御しないので、モニタ１６と第２カメラ付き玄関
子機１４への電力供給は継続される。モニタ１６には、
第２カメラ付き玄関子機１４からの映像信号がカメラ切
り替え手段１９を経て入力されているので、モニタ給電
手段１７から電力が供給されることにより、第２カメラ
付き玄関子機１４からの映像が表示される。The video signal from the second camera-equipped entrance device 14 is transmitted to the camera switching means 19 and the doorphone switching means 2.
The signal is input to the drop-out detecting means via 1. If the input of the video signal is normal, the dropout detection means 22 sends the β control signal to the determination control means 18 within the synchronization signal monitoring time.
No synchronization signal is input more than once. The determination control unit 18 that has not received the input of the synchronizing signal more than β times within the synchronizing signal monitoring time becomes the monitor feeding unit 17 and the camera feeding unit 2.
Since 0 is not controlled, power supply to the monitor 16 and the second camera-equipped entrance device 14 is continued. The monitor 16
Since the video signal from the second camera-equipped entrance device 14 is input via the camera switching means 19, the video from the second camera-equipped entrance device 14 is supplied by the power supply from the monitor power supply means 17. Is displayed.
【００４９】室内モニタ親機２３にカメラなし玄関子機
１５が接続されている場合に、判定制御手段１８に室内
側から玄関子機２により玄関を監視する指示が入力され
ると、判定制御手段１８はカメラ切り替え手段１９を
(f) 側に切り替え、ドアホン切り替え手段２１を(g) 側
に切り替える。これにより、カメラ給電手段２０を制御
してカメラ付き玄関子機２のための電力を供給し、モニ
タ給電手段１７を制御してモニタ１６へ電力を供給する
が、ドロップアウト検出手段２２には映像信号が入力さ
れない。When the entrance monitor 15 without a camera is connected to the indoor monitor master unit 23 and an instruction to monitor the entrance by the entrance slave unit 2 is input from the indoor side to the judgment control means 18, the judgment control means 18 is a camera switching means 19
Switch to the (f) side, and switch the intercom switching means 21 to the (g) side. As a result, the camera power supply means 20 is controlled to supply power for the camera-equipped entrance device 2, and the monitor power supply means 17 is controlled to supply power to the monitor 16. No signal is input.
【００５０】このとき、映像信号の入力が正常でないの
で、上記と同様に、ドロップアウト検出手段２２から判
定制御手段１８に同期信号監視時間内にβ回以上の同期
信号の入力が行われる。そして、β回以上の同期信号の
入力を受けた判定制御手段１８は、映像信号の入力が異
常であることを判定し、カメラ給電手段２０を制御して
電力の供給を停止することで、接続されたカメラなし玄
関子機に過剰な電力が供給されることを防止し、モニタ
給電手段１７を制御して電力の供給を停止することでモ
ニタにノイズが表示されてしまうことを防止し、ドアホ
ン切り替え手段２１を(h) 側に切り替えることでカメラ
なし玄関子機１５と接続することができる。At this time, since the input of the video signal is not normal, the synchronizing signal is input β times or more from the dropout detecting means 22 to the determination control means 18 within the synchronizing signal monitoring time in the same manner as described above. Then, the determination control unit 18 that has received the input of the synchronizing signal at least β times determines that the input of the video signal is abnormal, and controls the camera power supply unit 20 to stop the supply of electric power, thereby making the connection. To prevent excessive power from being supplied to the entrance device without camera, and to prevent noise from being displayed on the monitor by controlling the monitor power supply means 17 and stopping the supply of power. By switching the switching means 21 to the (h) side, it is possible to connect to the entrance device 15 without a camera.
【００５１】[0051]
【発明の効果】以上の説明から明らかなように、本発明
によれば、映像表示機能付きのインターホンの室内モニ
タ親機に、カメラ付き玄関子機が接続されていない場合
に、カメラ付き玄関子機のための電力を供給する際に発
生する同期信号を受信することにより、カメラ付き玄関
子機が接続されていないことを接続機器の設定スイッチ
などを設けることなく自動的に判別し、カメラ付き玄関
子機への供給電力を切断することで、カメラ付き玄関子
機以外の機器を誤って接続した場合でも、接続された機
器が過剰な電力供給によって破壊されることを防止する
ことができ、テレビドアホンのコストを低減する効果が
得られる。As is apparent from the above description, according to the present invention, when the camera-equipped entrance device is not connected to the indoor monitor main device of the intercom with the image display function, the camera-equipped entrance device is provided. By receiving the synchronization signal generated when power is supplied to the machine, it is automatically determined that the front door with camera is not connected without setting the setting switch of the connected device, and the camera By cutting off the power supply to the entrance cordless handset, even if devices other than the camera-attached cordless handset are accidentally connected, the connected equipment can be prevented from being destroyed by excessive power supply, The effect of reducing the cost of the TV door phone can be obtained.
【００５２】更に、カメラ付き玄関子機が接続されてい
ないことを判別した場合に、カメラ付き玄関子機のため
の電源切断と共に、室内モニタ親機の映像表示手段の電
源を切断し、室内モニタ親機の映像手段にノイズが表示
されることを防止することができる。Further, when it is determined that the camera-equipped entrance device is not connected, the power supply for the camera-equipped entrance device is turned off, and the power supply of the image display means of the indoor monitor master device is cut off. Noise can be prevented from being displayed on the image means of the master unit.
【００５３】また、本発明によれば、カメラなし玄関子
機が接続されている場合に、室内側から玄関を監視する
指示を判定制御手段が受けると、カメラ付き玄関子機の
ための電力とモニタの電力を供給し、ドアホン切り替え
手段を制御してカメラ付き玄関子機へ一旦接続をする
が、カメラ付き玄関子機が接続されていないことを接続
機器の設定スイッチなどを設けることなく自動的に判定
し、判定制御手段がカメラ給電手段とモニタ給電手段を
制御してカメラ付き玄関子機への供給電源とモニタへの
供給電源を切断するとともにドアホン切り替え手段を制
御してカメラなし玄関子機へ接続することができる。Further, according to the present invention, when the judgment control means receives an instruction for monitoring the entrance from the indoor side when the entrance without camera is connected, the power for the entrance with camera is reduced. It supplies power to the monitor and controls the doorphone switching means to temporarily connect to the camera-equipped entrance device, but automatically verifies that the camera-equipped entrance device is not connected without providing a setting switch on the connected device. The judgment control means controls the camera power supply means and the monitor power supply means to cut off the power supply to the camera-equipped entrance device and the supply power to the monitor, and also controls the intercom switching device to control the camera-equipped entrance device. Can be connected to
【図１】本発明の実施の形態１におけるカメラドアホン
装置の構成を示すブロック図FIG. 1 is a block diagram showing a configuration of a camera intercom apparatus according to Embodiment 1 of the present invention.
【図２】本発明の実施の形態２におけるカメラドアホン
装置の構成を示すブロック図FIG. 2 is a block diagram showing a configuration of a camera intercom apparatus according to Embodiment 2 of the present invention.
【図３】本発明の実施の形態２における同期信号監視時
間経過時の判定制御手段１８の動作手順を示すフローチ
ャートFIG. 3 is a flowchart showing an operation procedure of a determination control means 18 when a synchronization signal monitoring time has elapsed in Embodiment 2 of the present invention.
１ 第１カメラ付き玄関子機 ２ 第２カメラ付き玄関子機 ３ カメラなし玄関子機 ４ モニタ ５ モニタ給電手段 ６ 制御手段 ７ カメラ切り替え手段 ８ カメラ給電手段 ９ ドアホン切り替え手段 １０ 映像入力判定手段 １２ 室内モニタ親機 １３ 第１カメラ付き玄関子機 １４ 第２カメラ付き玄関子機 １５ カメラなし玄関子機 １６ モニタ １７ モニタ給電手段 １８ 判定制御手段 １９ カメラ切り替え手段 ２０ カメラ給電手段 ２１ ドアホン切り替え手段 ２２ ドロップアウト検出手段 ２３ 室内モニタ親機 DESCRIPTION OF SYMBOLS 1 Entrance device with 1st camera 2 Entrance device with 2nd camera 3 Entrance device without camera 4 Monitor 5 Monitor feeding means 6 Control means 7 Camera switching means 8 Camera feeding means 9 Doorphone switching means 10 Video input judgment means 12 Indoor Monitor main unit 13 First entrance unit with camera 14 Second entrance unit with camera 15 Entrance unit without camera 16 Monitor 17 Monitor power supply unit 18 Judgment control unit 19 Camera switching unit 20 Camera power supply unit 21 Doorphone switching unit 22 Dropout Detecting means 23 Indoor monitor master unit
───────────────────────────────────────────────────── フロントページの続き (72)発明者 細矢 雅子 神奈川県横浜市港北区綱島東四丁目３番１ 号 松下通信工業株式会社内 (72)発明者 茅野 裕一 神奈川県横浜市港北区綱島東四丁目３番１ 号 松下通信工業株式会社内 ──────────────────────────────────────────────────続 き Continued on the front page (72) Inventor Masako Hosoya 3-1-1 Tsunashima Higashi, Kohoku-ku, Yokohama-shi, Kanagawa Prefecture Inside Matsushita Communication Industrial Co., Ltd. Matsushita Communication Industrial Co., Ltd.
Claims (3)
子機の少なくとも一方が接続される室内モニタ親機を有
するテレビドアホン装置であって、 前記室内モニタ親機は、前記カメラ付き玄関子機で撮像
された映像を表示するモニタと、前記カメラ付き玄関子
機またはカメラなし玄関子機の着信信号及び室内側から
のカメラ付き玄関子機の監視指示信号に対応する制御信
号を出力する制御手段と、前記制御手段からカメラ付き
玄関子機の着信信号または監視指示信号に対応する制御
信号により前記モニタに電力を供給するモニタ給電手段
と、前記制御手段からカメラ付き玄関子機の着信信号ま
たは監視指示信号に対応する制御信号によりカメラ付き
玄関子機を前記モニタに切り替え接続するモニタ切り替
え手段と、前記制御手段からカメラ付き玄関子機の着信
信号または監視指示信号に対応する制御信号により前記
カメラ付き玄関子機に電力を供給するカメラ給電手段
と、前記制御手段からカメラ付き玄関子機またはカメラ
なし玄関子機の着信信号に対応する制御信号により前記
室内モニタ親機に接続される前記カメラ付き玄関子機ま
たはカメラなし玄関子機に切り替え接続するドアホン切
り替え手段とを備えることを特徴とするテレビドアホン
装置。1. A television doorphone device having an indoor monitor master unit to which at least one of a camera-equipped entrance slave unit and a camera-less entrance slave unit is connected, wherein the indoor monitor master unit is the camera-equipped entrance slave unit. A monitor for displaying a captured image, and control means for outputting a control signal corresponding to an incoming signal of the camera-equipped entrance device or a camera-less entrance device and a monitoring instruction signal for the camera-equipped entrance device from the indoor side. Monitor power supply means for supplying power to the monitor by a control signal corresponding to an incoming signal of a camera-equipped entrance device or a monitoring instruction signal from the control means; and an incoming signal or monitoring instruction of the camera-equipped entrance device from the control means. A monitor switching means for switching and connecting an entrance slave unit with a camera to the monitor by a control signal corresponding to the signal; A camera power supply unit for supplying power to the camera-equipped entrance device with a control signal corresponding to an incoming signal of the entrance device or a monitoring instruction signal; and an arrival signal of the camera-equipped entrance device or the camera-less entrance device from the control device. And a doorphone switching means for switching between the camera-equipped entrance terminal and the camera-less entrance terminal connected to the indoor monitor parent device by a control signal corresponding to the above.
正常であるかどうかを判定し、その判定結果を制御手段
に出力する映像入力判定手段を更に備え、前記映像入力
判定手段が正常と判断した時は前記制御手段によりモニ
タ及びカメラ付き玄関子機のそれぞれに給電するように
モニタ給電手段及びカメラ給電手段を制御する構成にし
たことを特徴とする請求項１記載のテレビドアホン装
置。2. The image processing apparatus according to claim 1, further comprising: a video input determining unit configured to determine whether a video input from the camera-equipped entrance device is normal and to output a result of the determination to the control unit. 2. The television door phone apparatus according to claim 1, wherein the monitor power supply means and the camera power supply means are controlled such that the control means supplies power to each of the monitor and the camera-equipped entrance device when the judgment is made.
子機の少なくとも一方が接続される室内モニタ親機を有
するテレビドアホン装置であって、 前記室内モニタ親機は、前記カメラ付き玄関子機で撮像
された映像を表示するモニタと、着信の行われた前記カ
メラ付き玄関子機の映像信号から同期信号のドロップア
ウトを検出するドロップアウト検出手段と、前記カメラ
付き玄関子機またはカメラなし玄関子機の着信信号及び
室内側からのカメラ付き玄関子機の監視指示信号に対応
する制御信号を出力するとともに前記ドロップアウト検
出手段からの同期信号の一定時間内のカウント閾値から
映像信号のない状態、着信中の玄関子機からの再着信の
状態及びカメラ付き玄関子機が接続されていない状態を
判定する判定制御手段と、前記判定制御手段からカメラ
付き玄関子機の着信信号または監視指示信号に対応する
制御信号により前記モニタに電力を供給するとともに前
記判定結果により前記モニタへの給電を停止するモニタ
給電手段と、前記制御手段からカメラ付き玄関子機の着
信信号または監視指示信号に対応する制御信号によりカ
メラ付き玄関子機を前記モニタに切り替え接続するモニ
タ切り替え手段と、前記制御手段からカメラ付き玄関子
機の着信信号または監視指示信号に対応する制御信号に
より前記カメラ付き玄関子機に電力を供給するとともに
前記判定結果により前記カメラ付き玄関子機への給電を
停止するカメラ給電手段と、前記制御手段からカメラ付
き玄関子機またはカメラなし玄関子機の着信信号に対応
する制御信号により前記室内モニタ親機に接続される前
記カメラ付き玄関子機またはカメラなし玄関子機に切り
替え接続するドアホン切り替え手段とを備えることを特
徴とするテレビドアホン装置。3. A television doorphone device having an indoor monitor master unit to which at least one of a camera-equipped entrance slave unit and a camera-less entrance slave unit is connected, wherein the indoor monitor master unit is the camera-equipped entrance slave unit. A monitor for displaying a captured image, a drop-out detecting means for detecting a drop-out of a synchronization signal from a video signal of the camera-equipped entrance terminal having received an incoming call, and the camera-equipped entrance device or a camera-less entrance device A state where there is no video signal from a count threshold value within a predetermined time of a synchronization signal from the dropout detection means while outputting a control signal corresponding to an incoming signal of the machine and a monitoring instruction signal of the camera-equipped entrance slave unit from the indoor side, A judgment control means for judging a state of a re-incoming call from the incoming handset and a state in which the camera-equipped handset is not connected; Means for supplying power to the monitor by a control signal corresponding to an incoming signal or a monitoring instruction signal of the camera-equipped entrance terminal, and stopping power supply to the monitor based on the determination result; and a camera from the control means. Monitor switching means for switching and connecting the camera-equipped entrance device to the monitor by a control signal corresponding to an incoming signal or a surveillance instruction signal of the attached-equipment, and an incoming signal or monitoring instruction signal of the camera-equipped entrance device from the control device Camera power supply means for supplying power to the camera-equipped entrance device with a control signal corresponding to the control signal, and stopping power supply to the camera-equipment entrance device based on the determination result; and a camera-equipped entrance device or camera from the control means. None The main unit connected to the indoor monitor by a control signal corresponding to the incoming signal of the entrance slave unit. An intercom switching device for switching between a camera-equipped entrance device and a camera-less entrance device, and a television intercom device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP35447496A JP3595896B2 (en) | 1996-12-19 | 1996-12-19 | TV door phone equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP35447496A JP3595896B2 (en) | 1996-12-19 | 1996-12-19 | TV door phone equipment |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH10178635A true JPH10178635A (en) | 1998-06-30 |
| JP3595896B2 JP3595896B2 (en) | 2004-12-02 |
Family
ID=18437813
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP35447496A Expired - Fee Related JP3595896B2 (en) | 1996-12-19 | 1996-12-19 | TV door phone equipment |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3595896B2 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009033661A (en) * | 2007-07-30 | 2009-02-12 | Aiphone Co Ltd | Intercom system |
| JP2010220153A (en) * | 2009-03-19 | 2010-09-30 | Panasonic Corp | Video intercom system, and intercom slave unit |
-
1996
- 1996-12-19 JP JP35447496A patent/JP3595896B2/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009033661A (en) * | 2007-07-30 | 2009-02-12 | Aiphone Co Ltd | Intercom system |
| JP2010220153A (en) * | 2009-03-19 | 2010-09-30 | Panasonic Corp | Video intercom system, and intercom slave unit |
Also Published As
| Publication number | Publication date |
|---|---|
| JP3595896B2 (en) | 2004-12-02 |
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