JPS6024486A - Invasion monitoring apparatus - Google Patents
Invasion monitoring apparatusInfo
- Publication number
- JPS6024486A JPS6024486A JP58132204A JP13220483A JPS6024486A JP S6024486 A JPS6024486 A JP S6024486A JP 58132204 A JP58132204 A JP 58132204A JP 13220483 A JP13220483 A JP 13220483A JP S6024486 A JPS6024486 A JP S6024486A
- Authority
- JP
- Japan
- Prior art keywords
- light
- sensors
- invasion
- pulse
- intrusion
- 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.)
- Pending
Links
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01V—GEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS; TAGS
- G01V8/00—Prospecting or detecting by optical means
- G01V8/10—Detecting, e.g. by using light barriers
- G01V8/20—Detecting, e.g. by using light barriers using multiple transmitters or receivers
Landscapes
- Physics & Mathematics (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- General Physics & Mathematics (AREA)
- Geophysics (AREA)
- Geophysics And Detection Of Objects (AREA)
- Burglar Alarm Systems (AREA)
Abstract
Description
【発明の詳細な説明】
本発明は送光部および受光部を有する光侵入センサが監
初領琥の境界に沿って禍数個配設される侵入監初装置に
関する。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an intrusion monitoring device in which a number of optical intrusion sensors each having a light transmitting section and a light receiving section are arranged along the boundary of a control area.
第1図はこの褌の侵入監視装置の光侵入センサの配置状
態を示す平面図で、建物(1)の周囲を監視領域として
、この監視領域に沿ってそれぞれ送光部い啼および受光
部(2R) 、・・・送元部(8S)および受光部(8
R)でなる検数の光侵入センサが環状に陥設され、てい
る。この場合、送光部と受光部とが離れすぎると、光が
弱まるので、所定の間隅ごとに光侵入センサを設けなけ
ればならない。Figure 1 is a plan view showing the arrangement of the optical intrusion sensors of this loincloth intrusion monitoring device. 2R), ... Sending section (8S) and light receiving section (8S)
A number of optical intrusion sensors consisting of R) are recessed in a ring shape. In this case, if the light transmitting part and the light receiving part are too far apart, the light will weaken, so a light intrusion sensor must be provided at each corner at a predetermined distance.
第1図では泊線距離の長い部分に2絹の光直・す(2S
)、(2R)および(3S)、(3R)を列状に配置し
ている。In Figure 1, there is a 2 silk Mitsunao line (2S
), (2R) and (3S), (3R) are arranged in a row.
ところで、従来の侵入監視装置は光パルス波杉、すなわ
ち、光パルスパターンが同一の光侵入センサを用いてい
たため、隣挾する光侵入センサの影4I!ご受け易く、
侵入が発生しても侵入と判断できないことがあった。By the way, since conventional intrusion monitoring devices used optical intrusion sensors with optical pulse waves, that is, with the same optical pulse pattern, the shadows of adjacent optical intrusion sensors are 4I! Easy to accept,
Even if an intrusion occurred, it could not be determined that it was an intrusion.
第2図(α)および(1))はこのことiff?明する
ために、光侵入センサの配置状態を示すIl1面図およ
び平面図で、送光部(2s)受光部(2R)、送光部(
3s)および受光部(3R)が略直醜上に配置aされて
いる場合、送光部(2S)の光パルスが受光部(3R)
’に到達することがある。この場合、光パルスのパタ
ーンが同一であることから、例えば、送光部(38)の
動作を停止させて出入りを許可6nた者全通行させると
き、侵入でないにも拘わらず侵入と判断したり、逆に、
送元部(3S)を正常動作させて、その光パルスが侵入
によって辿られたとしても送光部(2S)の光パルスが
受光部(3R)に届き侵入と判断できないと言う不具合
があった。Figure 2 (α) and (1)) indicates this. For clarity, the light transmitting part (2s), the light receiving part (2R), the light transmitting part (
3s) and the light receiving part (3R) are arranged substantially directly above the light receiving part (3R), the light pulse of the light transmitting part (2S) is transmitted to the light receiving part (3R)
' may be reached. In this case, since the light pulse patterns are the same, for example, when the operation of the light transmitting unit (38) is stopped and all authorized persons are allowed to enter and exit, it may be determined that there is an intrusion even though it is not an intrusion. ,vice versa,
There was a problem in that even if the sending part (3S) was operating normally and the light pulse was traced by an intruder, the light pulse from the light sending part (2S) would reach the light receiving part (3R) and could not be determined to be an intrusion. .
本発明は上記事情を考バしてなされたもので。The present invention has been made in consideration of the above circumstances.
隣接配置される光侵入センサの形骨を除去し得る侵入監
視装置の提供を目的とする。It is an object of the present invention to provide an intrusion monitoring device capable of removing the skeleton of an optical intrusion sensor arranged adjacently.
この目的を達成するために1本発明は、侵入監視装置に
沿って検数の光侵入センサが^ピ設される侵入監視装置
において、隣接配置される少なくとも一部の前記光侵入
センサが、互いにパターンの異る光パルスを送受信し得
、且つ、この光パルスのパターン切換えが可能な送光部
および受光部を具備したことを特徴とするものである。To achieve this object, the present invention provides an intrusion monitoring device in which a number of optical intrusion sensors are installed along the intrusion monitoring device, in which at least some of the optical intrusion sensors arranged adjacent to each other The present invention is characterized by comprising a light transmitting section and a light receiving section capable of transmitting and receiving optical pulses having different patterns and switching the pattern of the optical pulses.
N下、添付図面を参照して本発明を一実施例について説
明する。DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will now be described in detail with reference to the accompanying drawings.
第3図はこの侵入監視装置の構成を示す回路図で、主に
送光部00と、受光部−と、監視制御部側とを具えてい
る。FIG. 3 is a circuit diagram showing the configuration of this intrusion monitoring device, which mainly includes a light transmitting section 00, a light receiving section, and a monitoring control section.
このうち、送光部00はそれぞれパターンの弄るパルス
信号を発生するパルス発振器(111)〜(lln )
と5パルス信号を増幅する増幅器03と、発光グイミー
トQ4 ト、IJ L/ −(151) 〜(15n
)およびθGとを具え、パルス発振器(111)〜(l
ln)はそれぞれリレー(151)〜(15n)の常開
接点(rl)〜(rn )を介して増@器0(の入力端
子に接絆され、この増幅器^:うの入力端子と接地点と
の間にリレーQ6の常駐I枡点(rc)が接続されてお
り、また、増幅器0.噂の出力端子と接地点との間に発
光ダイオード04がr牟fされている。Among these, the light transmitting unit 00 is a pulse oscillator (111) to (lln) that generate a pulse signal with a different pattern, respectively.
and the amplifier 03 that amplifies the 5-pulse signal, and the light emitting signal Q4, IJ L/-(151) ~(15n
) and θG, and pulse oscillators (111) to (l
ln) are connected to the input terminal of amplifier 0() through the normally open contacts (rl) to (rn) of relays (151) to (15n), respectively, and the input terminal and ground point of this amplifier ^: The resident I cell point (rc) of the relay Q6 is connected between the two, and the light emitting diode 04 is connected between the output terminal of the amplifier 0 and the ground point.
また、受光部−は受光ダイオードQ1)と、増幀器説)
および(ハ)と、それぞれパターンのpるパルス信号ケ
受伽するパルス受信器(231)〜(23n)と、リレ
ー(241) 〜(24n )および2Qとを艮え、増
幅器(121の入力端は発光ダイオードI!l!Dを介
して図示しない直流電源にi#綬されている。また、パ
ルス受信器(231)〜(23n )の入力端はそれぞ
れ増幅器に)の出力端子に、これらのパルス受信器(2
313〜(23n )の出力端はそれぞれリレー(24
1)〜(24n )の常岬知点(rtt ) 〜(rl
n )を介してもう一つの増幅器に)の入力端子にそれ
ぞれ接続されている。また、増幅器(ハ)の出力端子と
接地点とのの間にリレー(ハ)が接続されている。In addition, the light receiving part is a light receiving diode Q1) and a multiplier theory)
and (c), pulse receivers (231) to (23n) that receive the pulse signals of the respective patterns, relays (241) to (24n) and 2Q, and the input terminal of the amplifier (121). are connected to a DC power supply (not shown) via a light emitting diode I!l!D.In addition, the input terminals of the pulse receivers (231) to (23n) are connected to the output terminals of the amplifiers, respectively. Pulse receiver (2
The output terminals of 313 to (23n) are connected to relays (24
1)~(24n) Tsunemisaki knowledge point (rtt)~(rl
n) to another amplifier via the input terminals of the amplifiers). Further, a relay (C) is connected between the output terminal of the amplifier (C) and a ground point.
一方、監視制御部(8o)は交流電源(8I)と、手動
スイッチチ(321)〜(32n)と、押釦スイッチ6
;)と、ペル1944と、リレー(85)とを具え、交
流電源(81)の一端は、前述した送光部叫のリレー(
151)〜(15n)%OQおよび受光部のリレー(2
41)〜(,24n)の一端に共通接続され、この交流
電源(8I)の他端は、それぞれ手動スイッチ(321
) 〜(32n )を介してりv−(151)〜(15
n)およびリレー(241)〜(24rl)を他端にJ
I[される他、押釦スイッチQを介してリレーOQの他
端に接続される。On the other hand, the supervisory control unit (8o) is connected to an AC power source (8I), manual switches (321) to (32n), and a push button switch 6.
), a Pell 1944, and a relay (85), and one end of the AC power supply (81) is connected to the relay (85) of the light transmitting section described above.
151) ~ (15n)% OQ and light receiving section relay (2
41) to (, 24n), and the other end of this AC power supply (8I) is connected to a manual switch (321), respectively.
) to (32n) via v-(151) to (15
n) and relays (241) to (24rl) to the other end
In addition, it is connected to the other end of relay OQ via push button switch Q.
また、ペルー〇一端はリレー□)の常開接点(rx)を
介して交流電源βすの一端に、その他端は交流電源18
11の他端に接続されている。さらにまた、リレーに)
)の一端は交流電源(81)の一端に、その他端は受光
部−のリレーに)の常開接点Dy)を介して交流電源+
81)の他端にそれぞれ接続されている。Also, one end of Peru〇 is connected to one end of the AC power supply β via the normally open contact (rx) of the relay □), and the other end is connected to the AC power supply 18.
11. Furthermore, to the relay)
) is connected to one end of the AC power supply (81), and the other end is connected to the relay of the light receiving unit (-) via the normally open contact Dy) of the AC power supply (81).
81) are respectively connected to the other ends.
上記の如く構成された侵入監視wemの作用を以下に説
明する。The operation of the intrusion monitoring WEM configured as described above will be explained below.
先ず、第3図は監視領域に沿って配設される1絹の光侵
入センナとその監視制御部を示したもので、これと略同
−構成の装置が第2図に示したように直線部分に隣接配
置される。First, Fig. 3 shows a single optical intrusion sensor and its monitoring control unit arranged along the monitoring area. placed adjacent to the part.
第3図において、手動スイッチ(321)〜(32n)
は光パルスのパターンを選択するもので、例えば、手動
スイッチ(321)を閉成するとリレー(151)が動
作し、その常開接点(匂下単に接点と言う)(rl)
t−介してパルス発振器(111)のパルス信号が増幅
器a3に加えられ、また、手動スイッチ(32n)を閉
成するとリレー(15n)が動作し、その接A(rn)
を介してパルス発振器(lln)のパルス信号が増幅器
(11に加えられる。In Fig. 3, manual switches (321) to (32n)
is used to select the light pulse pattern. For example, when the manual switch (321) is closed, the relay (151) operates, and its normally open contact (rl)
The pulse signal of the pulse oscillator (111) is applied to the amplifier a3 via t-, and when the manual switch (32n) is closed, the relay (15n) operates, and its connection A(rn)
The pulse signal of the pulse oscillator (lln) is applied to the amplifier (11) via the pulse oscillator (lln).
また、手動スイッチ(321)を閉成したとき、リレー
(241)も同時に動作し、その接点(ro)を介して
パルス受信器(231)の出力信号が増幅器に)に加え
られ、同様に、手動スイッチ(32n)を閉成したとき
、リレー(241)も同時に動作し。Moreover, when the manual switch (321) is closed, the relay (241) is also operated at the same time, and the output signal of the pulse receiver (231) is applied to the amplifier (to the amplifier) through its contact (ro). When the manual switch (32n) is closed, the relay (241) also operates at the same time.
その接点(rln)i介してパルス受信器(23n )
の出力信号が増幅器(ハ)に加えられる。Pulse receiver (23n) via its contacts (rln)i
The output signal of is applied to the amplifier (c).
ここで、手動スイッチ(321)〜(32n )は互い
に関連を以って動作するもので、どれか1つの手動スイ
ッチを閉成したとき他の手動スイッチは全て開放するも
のが用いられる。Here, the manual switches (321) to (32n) operate in relation to each other, and when any one manual switch is closed, all other manual switches are opened.
一方、パルス発振器(111)〜(lln)は第4図(
α)〜(n)に示すようにそれぞれ周波数やパルス出力
期間が異る、いわゆる、パターンの異るパ≦雀均を出力
するもので、また、パルス受信器(231)〜(23n
)はそれぞれパルス発振器(111)〜(lln)に対
に1、して1種類のパルス信号のみを受信するものであ
る。On the other hand, the pulse oscillators (111) to (lln) are shown in FIG.
As shown in α) to (n), the pulse receivers (231) to (23n) each output different frequencies and pulse output periods, so-called different patterns.
) are paired with pulse oscillators (111) to (lln), respectively, and receive only one type of pulse signal.
しかして、手動スイッチ(321)〜(32n)の何れ
を閉成させたかによってパターンの異る光パルスが発光
ダイオードα尋より出力され、この光パルスを受けた受
光ダイオード(ハ)の信号が増幅器堅)を介してパルス
受信器(231)〜(23n)に加えられる。Then, depending on which of the manual switches (321) to (32n) is closed, a light pulse with a different pattern is output from the light emitting diode (α), and the signal from the light receiving diode (c) that receives this light pulse is transmitted to the amplifier. The signals are applied to the pulse receivers (231) to (23n) through the pulse receivers (231) to (23n).
ところで、パルス受信器(231)〜(23n)は受信
可能なパルス信号を受けているとき信号を出力せず、こ
のパルス信号がしゃ断されたときに信号を出力するもの
である。By the way, the pulse receivers (231) to (23n) do not output a signal when receiving a receivable pulse signal, but output a signal when this pulse signal is cut off.
かくして、手動スイッチ(231)を閉成した状伸で侵
入が発生するとパルス受信器(231)の信号が増幅器
(イ)を介してリレー(ハ)に加えられ、このリレーが
動作する。また、このリレー(イ)の接点(ry)を介
してリレー185)にも通電されることから接I:!(
rx)が閉成してベル(6)が鳴動する。これに応じて
監視室で適切な処置をとる。Thus, when an intrusion occurs when the manual switch (231) is closed, the signal from the pulse receiver (231) is applied to the relay (c) via the amplifier (a), and this relay is activated. In addition, since the relay 185) is also energized via the contact (ry) of this relay (A), the connection I:! (
rx) closes and the bell (6) rings. Appropriate action will be taken in the monitoring room accordingly.
次に、押釦スイッチC3→は動作チェック用のもので、
これを押し操作するとリレーOQが動作し、その接点(
rc)によって増幅器α葎の入力婦子が接地されること
から侵入が発生したと同様に光パルスがしゃ断され、こ
の結果、リレー(ハ)、(35Iが動作してブザー(6
)が鳴動する。これによって監視動作が正常であるか否
かの判断が可能になる。Next, the push button switch C3→ is for operation check.
When you press and operate this, relay OQ operates, and its contact (
Since the input terminal of the amplifier α is grounded by rc), the optical pulse is cut off as if an intrusion had occurred, and as a result, the relays (c) and (35I are activated and the buzzer (6
) sounds. This makes it possible to determine whether the monitoring operation is normal.
次に、手動スイッチ(321)〜(32n)の何れかを
閉成した状態で押釦スイッチ(ト)を押し操作したにも
拘わらず、ベルーが鳴動しない場合には。Next, if the bell does not ring even though the push button switch (G) is pressed with any of the manual switches (321) to (32n) closed.
受光ダイオードQ])が1lili接する光侵入センサ
の元パルスを受信していることになる。This means that the light receiving diode Q]) receives the original pulse from the optical intrusion sensor that is in close contact with the light receiving diode Q].
このような場合には111次、他の手動スイッチを閉成
するとともに上述したチェック動作を繰返して最も条件
の良いパルスパターンを選択する。In such a case, the other manual switches are closed in the 111st order, and the above-described check operation is repeated to select the pulse pattern with the best conditions.
ナオ、 ハA/ スハターンの選択は光侵入センサの設
#時に行うものである。NAO, HA A/ The selection of the SHA turn is made when installing the optical intrusion sensor.
L−7上1本発明を好適な実施例について駁明したが、
本発明はこの実施例に限定されるものではなく、次に述
べる構成を拌っても上述したと同様に、隣接−t、L光
侵入センサの干渉を防ぐことができる。Although the present invention has been clarified in terms of preferred embodiments,
The present invention is not limited to this embodiment, and even if the configuration described below is modified, interference between adjacent -t and L light intrusion sensors can be prevented in the same way as described above.
(1)第3図に示した如きパターンの異る光パルスを送
受信し得る侵入監視センサを距離の長い直線部分に限ら
ず、光を放射する角度が大きく異る部位でも、要は干渉
が予測される部位に設ければよい。(1) Intrusion monitoring sensors that can transmit and receive light pulses with different patterns as shown in Figure 3 are not limited to long straight lines, but can also be used in areas where the angles of light emission vary greatly, so that interference can be predicted. It may be installed at the location where the
(2)上記実施例ではパルスパターンを変える選択スイ
ッチを監視制御部、つまり、監視寥に設けたが、送元部
および受光部の何れに設けてもよい。(2) In the above embodiment, the selection switch for changing the pulse pattern is provided in the monitoring control unit, that is, the monitoring unit, but it may be provided in either the sending unit or the light receiving unit.
(3)制御部に用いられるリレー等に代えて電質機を用
いてもよく、侵入表示を行うベルの代わシにCRT等を
用いるようにしてもよい。(3) An electrostatic device may be used in place of a relay or the like used in the control section, and a CRT or the like may be used in place of a bell that indicates an intrusion.
(4)侵入が発生したとき、ITVカメラがその場所を
自動的に捉えてその像をCRTモニタに映し出してもよ
い。(4) When an intrusion occurs, the ITV camera may automatically capture the location and display the image on the CRT monitor.
(5)動作チェック用の押釦スイッチは光侵入センサ毎
に設ける代わり、干渉が予測されるブロックに1個だけ
設けて、複数の光侵入センサを同時にチェックするよう
にしてもよい。これによってチェック時間が短緒される
。(5) Instead of providing a push button switch for operation check for each optical intrusion sensor, only one push button switch may be provided in a block where interference is expected, so that a plurality of optical intrusion sensors can be checked simultaneously. This reduces checking time.
(6)光パルスの出力波形はアナログ的な波形でもよい
。(6) The output waveform of the optical pulse may be an analog waveform.
(7)光パルスとしては可視光に限らず赤外緋でもよい
。(7) The light pulse is not limited to visible light, but may also be infrared scarlet.
N上のaオ明によって明らかな如く、本発明の侵入監視
装置によれば、@接装置される光侵入センサの影響を確
実に除去し得、これによってi実な侵入監視が可能にな
っている。As is clear from the above, the intrusion monitoring device of the present invention can reliably eliminate the influence of the optical intrusion sensor that is connected to the sensor, thereby making it possible to effectively monitor intrusions. There is.
第1図は一般的な侵入監視装置の光侵入センサの配置状
態を示す平面図、第2図((L)および0:l)は従来
の侵入監視装置を説明するた約に、隣接する光侵入セン
サの配置例を示す平面図および側面図。
第3図は本発明に保る侵入監視装置の一実施例の構成を
示す口略図、第4図は同実施例を構成する主要な要素の
出力信号を示すタイムチャートである。
(1):建物、(2S)〜(8S)、頭:送光部、(2
S)〜(8S)、い6:受光部、
(111)〜(Iln):パルス発振器、0・v:発介
ダイオード、Q]):受光ダイオード、(231)〜(
23n ) :パルス受信器、(151) 〜(15n
)、0→、(241) 〜(24n ) 、H(判:
リレー、 +811 :交流電源、(321)〜(32
n):手動スイッチ、粥−):ブザー。
代理人大岩増雄
一一一 ζ、〆Fig. 1 is a plan view showing the arrangement of optical intrusion sensors in a general intrusion monitoring device, and Fig. 2 ((L) and 0:l) is a plan view showing the arrangement of optical intrusion sensors in a conventional intrusion monitoring device. A plan view and a side view showing an example of arrangement of intrusion sensors. FIG. 3 is a schematic diagram showing the configuration of an embodiment of the intrusion monitoring device according to the present invention, and FIG. 4 is a time chart showing output signals of the main elements constituting the embodiment. (1): Building, (2S) to (8S), Head: Light transmitter, (2
S) ~ (8S), I6: Light receiving section, (111) ~ (Iln): Pulse oscillator, 0.v: Laser diode, Q]): Light receiving diode, (231) ~ (
23n): Pulse receiver, (151) ~ (15n
), 0→, (241) ~ (24n), H (size:
Relay, +811: AC power supply, (321) to (32
n): Manual switch, porridge-): Buzzer. Agent Kazuo Oiwa ζ, 〆
Claims (1)
侵入監視装置において、隣接配置される少なくとも一部
の前記光侵入センサが、互いにパターンの異る光パルス
を送受惟し得、月つ、この元パルスのパターン切換えが
可能な送元部および受光部を具えたことを特徴とする侵
入監視装置。In an intrusion monitoring device in which a plurality of optical intrusion sensors are arranged along the intrusion monitoring device, at least some of the optical intrusion sensors arranged adjacent to each other can transmit and receive optical pulses having different patterns, and An intrusion monitoring device characterized by comprising a source section and a light receiving section capable of switching the pattern of the source pulse.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP58132204A JPS6024486A (en) | 1983-07-20 | 1983-07-20 | Invasion monitoring apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP58132204A JPS6024486A (en) | 1983-07-20 | 1983-07-20 | Invasion monitoring apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6024486A true JPS6024486A (en) | 1985-02-07 |
Family
ID=15075821
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP58132204A Pending JPS6024486A (en) | 1983-07-20 | 1983-07-20 | Invasion monitoring apparatus |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6024486A (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5226550B2 (en) * | 1973-10-10 | 1977-07-14 | ||
| JPS537384A (en) * | 1976-07-09 | 1978-01-23 | Daido Shingo | Method of detecting moving object by ultrashort waves |
-
1983
- 1983-07-20 JP JP58132204A patent/JPS6024486A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5226550B2 (en) * | 1973-10-10 | 1977-07-14 | ||
| JPS537384A (en) * | 1976-07-09 | 1978-01-23 | Daido Shingo | Method of detecting moving object by ultrashort waves |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| EP0591585B1 (en) | Remote monitoring unit | |
| DE69018201T2 (en) | Device for sending and remotely alarming a monitoring alarm. | |
| JPS5927397A (en) | Invasion detector | |
| US4339746A (en) | Alarm control center | |
| CA2112099A1 (en) | Smoke Alarm and Air Cleaning Device | |
| JPS6024486A (en) | Invasion monitoring apparatus | |
| JP3517169B2 (en) | Display case information collection device | |
| WO1998032106A1 (en) | Video security systems | |
| JPH06111149A (en) | Monitoring sensor | |
| JP3459100B2 (en) | Disaster prevention equipment | |
| JP4469191B2 (en) | Apartment house intercom system | |
| JPS59220897A (en) | Monitor | |
| JP3283126B2 (en) | Fire receiver | |
| JP2552272B2 (en) | Automatic fire alarm | |
| JPH03101493A (en) | Monitor television monitoring device with optical sensor playing role of monitor function in deputy | |
| JPH03177996A (en) | Invasion inspecting method in invader centralized monitoring device | |
| JPS60125582A (en) | Trespass monitor device | |
| JPH07160975A (en) | Supervisory camera system | |
| JPS613591A (en) | Detector of abnormal event | |
| JP2001243573A (en) | Security system | |
| JPS62288996A (en) | Optical type alerting apparatus | |
| JP2740957B2 (en) | Surveillance call system for apartment buildings | |
| JPH0965328A (en) | Door phone equipment | |
| JPH04115397A (en) | Disaster prevention monitoring device | |
| JPH07203423A (en) | Intruder supervisory equipment |