JPS5821936A - Optical remote-control switch - Google Patents

Optical remote-control switch

Info

Publication number
JPS5821936A
JPS5821936A JP56120904A JP12090481A JPS5821936A JP S5821936 A JPS5821936 A JP S5821936A JP 56120904 A JP56120904 A JP 56120904A JP 12090481 A JP12090481 A JP 12090481A JP S5821936 A JPS5821936 A JP S5821936A
Authority
JP
Japan
Prior art keywords
load
control signal
signal
receiver
light
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
Application number
JP56120904A
Other languages
Japanese (ja)
Other versions
JPS6329880B2 (en
Inventor
Takasuke Miki
三木 隆右
Kiyotaka Matsumura
松村 清孝
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Panasonic Electric Works Co Ltd
Original Assignee
Matsushita Electric Works Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Matsushita Electric Works Ltd filed Critical Matsushita Electric Works Ltd
Priority to JP56120904A priority Critical patent/JPS5821936A/en
Publication of JPS5821936A publication Critical patent/JPS5821936A/en
Publication of JPS6329880B2 publication Critical patent/JPS6329880B2/ja
Granted legal-status Critical Current

Links

Classifications

    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04BTRANSMISSION
    • H04B10/00Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication
    • H04B10/11Arrangements specific to free-space transmission, i.e. transmission through air or vacuum
    • H04B10/114Indoor or close-range type systems

Abstract

PURPOSE:To increase controllable ranges and to provide a degree of freedom for the design of an optical signal receiver, by attaching the receiver on a wall and controlling loads via an electric power line and in accordance with the control signal given from an optical transmitter. CONSTITUTION:A photodetecting signal is produced when the modulated light P given from a transmitter T is received at a photodiode 10 of a photodetecting part. For the photodetecting signal, a signal or a noise is discriminated at a noise canceling circuit 13 after the photodetecting signal is demodulated through a filter and a diode. A load controlling signal VL thus obtained is fed to a control signal generating circuit 3 to be turned into another controlling signal added with an address data of the load. This controlling signal is transmitted to the terminal provided to the load via an electric power line. The interior design is free since the load can be separated from the photodetecting part.

Description

【発明の詳細な説明】 本発明は、負荷を遠隔制御する光りtコシスイッチに関
するものである。
DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a light switch for remotely controlling a load.

従来、この種の光リモコンスイ”Jチは第5図に示すよ
うに、負荷制御信号に基いて変調された変調光(P)を
投光する送信器(1)と、送信器0)からの変調光(P
)’に受光して負荷制御信号を再生するとともに再生さ
れた負荷制御信号にて負荷に)をオンオフ制御するよう
にした受信器〆とで構成されていた。
Conventionally, this type of optical remote control switch, as shown in FIG. Modulated light (P
)', the receiver receives light and regenerates a load control signal, and the regenerated load control signal is used to turn on and off the load ().

ところで、このような従来例にあっては、受信器俯内忙
設けられたスイッチング回路にて負荷に)を直接オンオ
フ制御するようになっていたので、配線工事を新た九行
なわなくても良いようにするには負荷−の近くに受信器
町を配設する必要があった。例えば天井照明装置のよう
な負荷(ト)を制御する受信器−は天井1iiK設けた
引掛シーリ−Jり(Sa)  。
By the way, in such a conventional example, since the switching circuit installed inside the receiver was used to directly control the on/off of the load (load), there was no need for nine additional wiring works. To achieve this, it was necessary to locate the receiver near the load. For example, a receiver that controls a load such as a ceiling lighting device is a ceiling hook installed on the ceiling.

関 (!!1b)。忙取設するようになっていた。しかしな
がら、このように受信器Nk負負荷の近くに配設すると
、天井の見栄えが悪くなる上、送信器(1)Kて負負荷
を遠隔制御できる制御可能範囲(送信器(1)から投光
される変調光(杓が受信器〆に直接入射する範囲)が小
さくなって遠隔操作のメリットが失なわれる場合がある
という欠点があった。すなわち、広い部屋の中央部に配
設された天井照明装置のような負荷■を部屋の入口付近
から遠隔制御することかでjtJい場合があり、まして
他の部屋から遠隔制御する仁とは不可能であった。さら
に複数個の負荷に)を1対の送受信11(I)@l′に
て遠隔制御する場合には、必然的に新たな配線工事を行
なう必要があり、配線工事が煩しいという欠点があった
6本発明は上記の欠点を解決することを目的とするもの
である。
Seki (!!1b). I was starting to get busy. However, if the receiver Nk is placed near the negative load in this way, the ceiling will not look good, and the controllable range (light emitted from the transmitter (1) The disadvantage is that the modulated light (range where the ladle directly enters the receiver) becomes small and the advantage of remote control may be lost. It is sometimes difficult to remotely control a load such as a lighting device from near the entrance of a room, and it is even more difficult to remotely control a load such as a lighting device from another room. When performing remote control using a pair of transmitter/receiver 11(I)@l', new wiring work is inevitably required, and the wiring work is troublesome.6 The present invention overcomes the above-mentioned drawbacks. The purpose is to solve the following problems.

以下、実施例について図を用いて説明する。第1図〜第
4図は本発明一実施例を示すもので、(1)は負荷制御
信号に基いて変調された変調光(P) Th投光する送
信器であり、操作スイッチ購、送信信号発生都(111
%投光ドライバー+171および発光タイオード端にて
構成されており、換作スイッチQ5)?r押圧すること
により発生される負荷制御信号(VL)に基いて周波数
が異なり(ft、、、fr、)、かつ位相が異なる2種
類の送信信号(Vt)が送信信号発生sunから出力さ
れ、この送信信号(VT)にて発光タイオード0轡が点
滅され、負荷制御信号(Vt) K基いて変調された変
調光(7)が投光される。なお、送信器(1)は携帯用
とするため電池電源を用いている。
Examples will be described below using figures. Figures 1 to 4 show an embodiment of the present invention, in which (1) is a transmitter that emits modulated light (P) Th modulated based on a load control signal; Signal generation capital (111
It consists of a light emitting driver +171 and a light emitting diode end, and a replacement switch Q5)? Based on the load control signal (VL) generated by pressing r, two types of transmission signals (Vt) with different frequencies (ft, , fr,) and different phases are output from the transmission signal generator sun, The light emitting diode 0 is blinked by this transmission signal (VT), and modulated light (7) modulated based on the load control signal (Vt) is projected. Note that the transmitter (1) uses a battery power source to make it portable.

(6)は送信器(1)からの変調光(P)t−受光して
負荷制御信号(Vx、)を再生するとともK、負荷制御
信号αL)Kて負荷(LJlにオンオフ制御するように
した受信器であり、変調光(ト)を受光する受光ffi
 illと、受光部(1)から出力される受光信号(V
R)から負荷制御信号(VL )を再生する受光信号処
理回路(2)と、再生された負荷制御信号(VL )に
より予め設定された制御すべき負荷に)の制御信号(V
c )を発生する制御信号発生回路(3)と、制御信号
(VC)t−商用電源の電力線゛(1)K送出する送信
回路(4)とで構成されており、受信器に)は壁面(ハ
)忙配設されるようになっている。図中(9)は定電圧
電源回路である。(3)は受光信号処理回路(2)から
出力される負荷制御信号(VL)と等価な擬似負荷制御
信号(VL) tl−制御信号発生回路(3)に入力す
る手動スイッチであり、手動スイッチ(6)を操作する
ことKより、送信器(7)を用いずに負荷に)をオシオ
フ制御することができ、受信器(へ)にいわゆる壁スィ
ッチの機能をもたせるものである。(7)は制御すべき
負荷に)を設定する負荷選択スイッチであり、各スイッ
チ(SW)にて制御すべき負荷(勾のアドレスを設定す
るもので、この負荷選択スイッチ(1)Kて設定された
アドレスデータを含む制御信号(VC)が受信器−から
電力線<1)K送出される。(6)は負荷に)K対応し
て設けられた端末器であり、電力線(6を介して受信さ
れる制−信号(Vc)のうちから自己の固有アドレスに
一致したアドレスデータを含むものを取り込んで負荷(
ト)をオンオフ制御するもので、負荷(ト)の近傍の目
立1こない位置あるいは負荷■内に配設される。前記負
荷選択スイッチ(7)は埋込ボックス(2))内に収納
されるベース(21m)の側縁部に配設され、前面プレ
ート(2)で覆われるようになっており、前面プレート
固を取外さない限り操作できないようにして、制御すべ
き負荷に)が不用意に変更されるのを防止している。凶
は前面プレー)@に設けられた光透過窓であり、受信器
(へ)の受光部(11の受光窓(1りに対応して設けら
れており、送信器(7)の操作者はこの光透過窓内に向
けて投光すれば良い。図中(財)は手動スイッチ突出窓
である。なお、ベース(211021b)は8連コンセ
シトに用いられるものを用いており、前面つし・−ト(
ロ)および埋込ボックス−も同様の規格のものを用いて
いるので、コンセシト構成部品との闇で共通部品化を図
ることができるようになっている。第4図は部屋の入口
付近の壁面(ロ)K受信器(6)を配設した例を示して
いる。
(6) receives the modulated light (P)t- from the transmitter (1) and regenerates the load control signal (Vx,). It is a receiver ffi that receives modulated light (g).
ill and the light reception signal (V
A light reception signal processing circuit (2) regenerates a load control signal (VL) from the load control signal (VL), and a control signal (VL) of
It consists of a control signal generation circuit (3) that generates a control signal (VC) and a transmission circuit (4) that sends a control signal (VC) to the commercial power line (1)K, and the receiver (to the receiver) is connected to the wall surface. (c) It is becoming more and more busy. In the figure, (9) is a constant voltage power supply circuit. (3) is a manual switch that inputs a pseudo load control signal (VL) equivalent to the load control signal (VL) output from the light reception signal processing circuit (2) to the tl-control signal generation circuit (3). By operating (6), it is possible to control the oscillation of the load (to the load) without using the transmitter (7), and the receiver (to) has the function of a so-called wall switch. (7) is a load selection switch that sets the load (to be controlled), and each switch (SW) is used to set the address of the load (gradient) to be controlled, and this load selection switch (1) K is used to set A control signal (VC) containing the assigned address data is sent from the receiver to the power line <1)K. (6) is a terminal device provided corresponding to the load (6), which selects one of the control signals (Vc) received via the power line (6) that includes address data that matches its own unique address. Import and load (
It controls the on/off of the load (g) and is installed in an inconspicuous position near the load (g) or inside the load (g). The load selection switch (7) is arranged on the side edge of the base (21m) housed in the embedded box (2), and is covered with the front plate (2). This prevents the load to be controlled from being changed inadvertently by making it inoperable unless the load is removed. The problem is the light-transmitting window installed in the front plate), which corresponds to the light-receiving window (11) of the receiver (to), and the operator of the transmitter (7) All you need to do is to project light into this light-transmitting window.The figure shown in the figure is a manual switch protruding window.The base (211021b) is the one used for the 8-unit console. -t(
(b) and the embedded box are also of the same standard, so they can be used as common parts with the concept components. FIG. 4 shows an example in which a K receiver (6) is installed on a wall (b) near the entrance of a room.

以下、受信器(6)の動作について具体的に脱明する。The operation of the receiver (6) will be explained in detail below.

いま、送信器(1)から投光された変調光(杓が受光部
+11のホトタイオード四にて受光されると、ホトタイ
オード(lO)にて光−電気変換された受光信号(VR
)カートランジスタ(Ql)〜(Q6)にて形成され前
半Sをシールドボックスに収納した増巾回路(111に
て増巾されて受光5(1)から出力される。この受光信
号(Via)は受信光信号処理回路(2)に入力さt′
l、フィルタ(Fl)(P″2)およびタイオード(D
IXD2)よりなる弁別検波回路(12m)(12b)
 K)tイテ、フィルタ(FxXFx) tv共共振波
波数て設定された周波数す、fzの信号のみが選択的に
検波される。この周波数す、bは送信器(1)から送信
される2種類の送信信号(VT)の周波数frt 。
Now, when the modulated light (ladle) projected from the transmitter (1) is received by the photodiode 4 of the light receiving unit +11, the received light signal (VR
) Kerr transistors (Ql) to (Q6) are formed, and the first half S is housed in a shield box.The amplification circuit (111) amplifies the signal and outputs it from the light receiver 5(1).This light reception signal (Via) is Input to the received optical signal processing circuit (2) t'
l, filter (Fl) (P″2) and diode (D
IXD2) discriminative detection circuit (12m) (12b)
K) Filter (FxXFx) Only signals of frequencies fz set at the tv resonance wave number are selectively detected. These frequencies s and b are the frequencies frt of two types of transmission signals (VT) transmitted from the transmitter (1).

fryと同一に設定しであるので、照明光などによる周
波数の異なる雑音信号が除去されるようになっている。
Since the setting is the same as fry, noise signals having different frequencies due to illumination light etc. are removed.

このようにして選択的に検波されTこ検波出力(VDI
 )(VDI )はインバータ(11)〜(I6)およ
びノアゲート(Nl)〜(N4)よりなるノイズ士ヤシ
セル回路UK入力され、両横波出力(VDI)(VDり
の位相差をチェックして雑音信号か正規の信号かを判別
するようになっている。すなわち、両横波出力へDI)
(VDりが同相で入力したときには雑音信号として牛ヤ
ンtルし、所定の位相差をもって入力したと入、初めに
入力さねた検波出力(VDt)K同期して立上り、続い
て入力された検波出方(Vns)[同期して立下るパル
ス信号よ抄なる負荷制御信号(VL)を出力するように
なっている。このようにして再生された負荷制御信号(
Vt)はトランジスタ(Qll)、ツェナタイオード(
ZD)より1(る出力回路α4Iを介して論理演算処理
用IC(8りにて形成される制御信号発生回路(3)K
入力され、負荷選択スイッチ(7)にて設定されるアド
レスデータが付加された@−倍信号Vc)が形成される
。この制−信号(Vc)はアドレスデータ、負荷制御信
号(Vt)の各ピットを商用w象の半サイクルに同期し
て時分割伝送するようにしたものであり、変調された4
周波信号となっている。この制御信号(Vc )はトラ
ンジスタ(9)〜(91)よりなる送信回路(4)を介
して零カM(1)に送出される。端末器I11では商用
W源に1畳された制御信号(VC)を受信して自己の固
有アドレスと一致したアドレスデータを含む制atM号
CVC”)が受信されたとき、アドレスデータに続く負
荷制御信号(VL )取り込んで負荷制御用リレーを制
御して負荷(LJをオシオフ制御する。次に、手動スイ
ッチ(3)をオンオフ操作すると、擬似負荷信号(VL
 )’が制御信号発生回路13) K入力されることK
なって、送信器(1)の操作スイッチ111K−操作し
た場合と全く同様に受信器(I)から制御信号(VC)
が送出され、負荷匈がオンオフ制御される。なお、実施
例にあっては制御信号発生回路(3)から変調された高
周波信号よりなる制−信号(Vc)を出力するようKな
っているが、アドレスデータおよび負荷制御信号(Vt
、)による搬送高周波の変調回路を送信回路(4)内に
設けるようにしても良い。
In this way, it is selectively detected and the T detection output (VDI
) (VDI) is input to a noise filter circuit UK consisting of inverters (11) to (I6) and NOR gates (Nl) to (N4), and the phase difference between both transverse wave outputs (VDI) (VD is checked and the noise signal is (DI) to both transverse wave outputs.
(When VD is input in the same phase, it is ignored as a noise signal, and when it is input with a predetermined phase difference, the detection output (VDt) that was input first rises in synchronization with K, and is input subsequently. Detection output method (Vns) [The load control signal (VL), which is a pulse signal that falls synchronously, is output.The load control signal (VL) regenerated in this way is
Vt) is a transistor (Qll), Zener diode (
ZD) is connected to the control signal generation circuit (3) K formed by the logical operation processing IC (8) via the output circuit α4I (1).
The @-multiple signal Vc) to which the input address data set by the load selection switch (7) is added is formed. This control signal (Vc) is designed to time-divisionally transmit each pit of the address data and load control signal (Vt) in synchronization with the half cycle of the commercial W event.
It is a frequency signal. This control signal (Vc) is sent to zero transistor M(1) via a transmitting circuit (4) consisting of transistors (9) to (91). When the terminal device I11 receives the control signal (VC) multiplied by the commercial W source and receives the control signal (VCC) containing address data that matches its own unique address, it performs load control following the address data. The signal (VL) is captured and the load control relay is controlled to control the load (LJ).Next, when the manual switch (3) is operated on and off, the pseudo load signal (VL
)' is input to the control signal generation circuit 13).
Then, the control signal (VC) is output from the receiver (I) in exactly the same way as when operating the operation switch 111K of the transmitter (1).
is sent out, and the load is controlled on and off. In the embodiment, the control signal (Vc) consisting of a modulated high frequency signal is output from the control signal generation circuit (3), but the address data and the load control signal (Vt
, ) may be provided in the transmitting circuit (4).

本発明は上述のように構成されており、変調光を受光す
る坐光都と、受光部から出力される受光信号から負荷制
御信号を再生する受光信号処理回路と、再生された負荷
制御信号により予め設定された制御すべき負荷の制御信
号を発生する制御信号発生回路と、該制御信号を電力線
に送出する送信回路とで構成される受信器を壁面に配設
し、受信器から送出される制御信号を上記電力線を介し
て受信して負荷を制御する端末器を負荷に上記電力線に
接続したものであり、受信器受光部上負荷△ とめ距離を任意に離すことができるので、新たな配線工
事を行なうことなく、光りtコシスイッチの操作可能範
囲を現場−の杖況に応じて任11に設定することができ
るという利点があり、まtこ、受信器t−壁面に配設し
ているので、一般に用いもれている壁スィッチと略同様
の外観となって室内の美観を損なうことがないという利
点かある。さらに。
The present invention is configured as described above, and includes a zakoto that receives modulated light, a light receiving signal processing circuit that regenerates a load control signal from a light receiving signal output from a light receiving section, and a light receiving signal processing circuit that reproduces a load control signal from a light receiving signal output from a light receiving section. A receiver consisting of a control signal generating circuit that generates a control signal for a preset load to be controlled and a transmitting circuit that transmits the control signal to the power line is installed on the wall, and the signal is transmitted from the receiver. A terminal device that receives control signals via the above power line and controls the load is connected to the above power line, and the load above the receiver light receiving section can be set at an arbitrary distance, so new wiring is not required. There is an advantage that the operable range of the light switch can be set to 11 depending on the situation at the site without any construction work, and the receiver can be placed on the wall. This has the advantage that it looks almost the same as a commonly used wall switch and does not spoil the aesthetics of the room. moreover.

負荷制御信号と等価な擬似負荷信号信号を制御信号発生
回路に入力する手動スイッチを受信器に設けることによ
り、送信器音用いずに負荷を制御することができ、一般
に用いられている壁スィッチと同様の機能をもつように
することができ、さらにまた、制御すべき負荷を設定す
る負荷選択スイッチを受信器の前面プレートで檜われる
位瀘に配設することにより、制御すべき負荷が不用意に
変更されることがないという利点がある。
By equipping the receiver with a manual switch that inputs a pseudo load signal equivalent to the load control signal into the control signal generation circuit, it is possible to control the load without using transmitter sound, and it is different from commonly used wall switches. It is possible to have a similar function, and furthermore, by arranging a load selection switch for setting the load to be controlled in the position covered by the front plate of the receiver, the load to be controlled can be changed inadvertently. It has the advantage that it never changes.

【図面の簡単な説明】[Brief explanation of the drawing]

第1図は本発明一実施例のブロック回路図、第2図は同
上の要部具体回路図、第8図は同上の要部分解斜視図、
第4図は同上の配設例を示す図・第6図は従来例の配設
例を示す図である。 (1)は送信器、(8)は受信器、(勾は負荷、(P)
は変調光、(ロ)は壁面、f1+は受光部、(2)は受
光信号処理回路、(31は制御信号発生回路、(4)は
送信回路、(6)は端末器、(6)は負荷選択スイッチ
、(7)は手動スイッチ、翰は前面プレートである。 代理人 弁理士  石 1)長 七
FIG. 1 is a block circuit diagram of an embodiment of the present invention, FIG. 2 is a specific circuit diagram of the main parts of the same, and FIG. 8 is an exploded perspective view of the main parts of the same.
FIG. 4 is a diagram showing an arrangement example similar to the above, and FIG. 6 is a diagram showing an arrangement example of a conventional example. (1) is the transmitter, (8) is the receiver, (gradient is the load, (P)
is the modulated light, (b) is the wall surface, f1+ is the light receiving section, (2) is the light receiving signal processing circuit, (31 is the control signal generation circuit, (4) is the transmitting circuit, (6) is the terminal device, (6) is The load selection switch (7) is a manual switch, and the handle is the front plate. Agent: Patent Attorney Ishi 1) Choshichi

Claims (3)

【特許請求の範囲】[Claims] (1)  負荷制御信号に基いて変調された変調光を投
光する送信器と、送信器からの変調光を受光して負荷制
御信号を再生するとともに該負荷制御信号にて負荷をオ
ンオフ制御するようにした受信器とよシなる光りtコシ
スイッチにおいて、変調光を受光する受光部と、受光部
から出方される受光信号から負荷制御信号を再生する受
光信号処理回路と、再生された負荷f111IIl信号
により予め設定された制御すべき負荷の制御信号を発生
する制御信号発生回路と、該制御信号を電力線に送出す
る送信回路とで構成される受信器を壁面に配設し、受信
器から送出される制・岬信号を受信して負荷をオシオフ
制御する端末器を設けて成ることを特徴とする光りtコ
ンスイッチ。
(1) A transmitter that emits modulated light modulated based on a load control signal, and a transmitter that receives the modulated light from the transmitter to regenerate a load control signal and to control the load on and off using the load control signal. In the receiver and the optical switch, the receiver includes a light receiving section that receives modulated light, a light receiving signal processing circuit that regenerates a load control signal from a received light signal output from the light receiving section, and a regenerated load. A receiver consisting of a control signal generation circuit that generates a control signal for the load to be controlled that is set in advance by the f111IIl signal, and a transmission circuit that sends the control signal to the power line is installed on the wall, and 1. A light T-con switch characterized in that it is provided with a terminal device that receives a transmitted control signal and controls the oscillation/off of a load.
(2)  負荷制御信号と等価な擬似負荷制御信号を制
御信号発生回路に入力する手動スイッチを受信器Klけ
たことを特徴とする特許請求の範囲第1項記載の光リモ
コンスイッチ。
(2) The optical remote control switch according to claim 1, characterized in that the receiver K1 includes a manual switch for inputting a pseudo load control signal equivalent to the load control signal to the control signal generation circuit.
(3)  制御すべき負荷を設定する負荷選択スイッチ
を受信器の前面プレートで覆われる位置に配設して成る
ことを特徴とする特許請求の範囲4M1項記載の光リモ
コンスイッチ0
(3) The optical remote control switch 0 according to claim 4M1, characterized in that a load selection switch for setting the load to be controlled is disposed at a position covered by the front plate of the receiver.
JP56120904A 1981-07-31 1981-07-31 Optical remote-control switch Granted JPS5821936A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP56120904A JPS5821936A (en) 1981-07-31 1981-07-31 Optical remote-control switch

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP56120904A JPS5821936A (en) 1981-07-31 1981-07-31 Optical remote-control switch

Publications (2)

Publication Number Publication Date
JPS5821936A true JPS5821936A (en) 1983-02-09
JPS6329880B2 JPS6329880B2 (en) 1988-06-15

Family

ID=14797869

Family Applications (1)

Application Number Title Priority Date Filing Date
JP56120904A Granted JPS5821936A (en) 1981-07-31 1981-07-31 Optical remote-control switch

Country Status (1)

Country Link
JP (1) JPS5821936A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6454996A (en) * 1987-08-26 1989-03-02 Matsushita Electric Works Ltd Optical wireless receiver
JPH01110583U (en) * 1988-01-19 1989-07-26
CN106793387A (en) * 2016-12-07 2017-05-31 广西大学 A kind of bedroom circuit for lamp of use flashlight controlling switch

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6454996A (en) * 1987-08-26 1989-03-02 Matsushita Electric Works Ltd Optical wireless receiver
JPH0452039B2 (en) * 1987-08-26 1992-08-20 Matsushita Electric Works Ltd
JPH01110583U (en) * 1988-01-19 1989-07-26
CN106793387A (en) * 2016-12-07 2017-05-31 广西大学 A kind of bedroom circuit for lamp of use flashlight controlling switch
CN106793387B (en) * 2016-12-07 2019-04-23 广西大学 A kind of bedroom circuit for lamp with flashlight control switch

Also Published As

Publication number Publication date
JPS6329880B2 (en) 1988-06-15

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