JPH0225587B2 - - Google Patents
Info
- Publication number
- JPH0225587B2 JPH0225587B2 JP8303483A JP8303483A JPH0225587B2 JP H0225587 B2 JPH0225587 B2 JP H0225587B2 JP 8303483 A JP8303483 A JP 8303483A JP 8303483 A JP8303483 A JP 8303483A JP H0225587 B2 JPH0225587 B2 JP H0225587B2
- Authority
- JP
- Japan
- Prior art keywords
- call
- detection circuit
- output
- circuit
- cpu
- 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.)
- Expired
Links
- 238000001514 detection method Methods 0.000 claims description 22
- 230000005856 abnormality Effects 0.000 claims description 14
- 230000002159 abnormal effect Effects 0.000 claims description 4
- 238000000034 method Methods 0.000 claims 1
- 238000012790 confirmation Methods 0.000 description 5
- 230000007257 malfunction Effects 0.000 description 4
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M9/00—Arrangements for interconnection not involving centralised switching
Landscapes
- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Interconnected Communication Systems, Intercoms, And Interphones (AREA)
Description
【発明の詳細な説明】
産業上の利用分野
本発明は親機側にマイクロプロセツサを使用
し、このマイクロプロセツサによつてどの子機か
ら呼出しがあつたかを検知し表示するように構成
したインターホン装置に関する。[Detailed Description of the Invention] Industrial Field of Application The present invention uses a microprocessor on the base unit side, and is configured to detect and display from which slave unit a call has been made by the microprocessor. The present invention relates to an intercom device.
従来例の構成とその問題点
第１図は従来のインターホン装置の構成を示し
ている。Configuration of a conventional example and its problems FIG. 1 shows the configuration of a conventional intercom device.
以下にこの従来例の構成について第１図ととも
に説明する。第１図において、B1は子機呼出回
路部、B2は子機の呼出しを検出し表示する表示
回路部、B3は親機であり子機の呼出しに対し、
呼出し箇所の該当箇所を表示し、また呼出し音を
鳴らす回路部を備えている。そして１１〜１ｎは
それぞれの呼出しスイツチ、２１〜２ｎは呼出し
スイツチ１１〜１ｎからの呼出し信号をラツチす
るラツチ回路、La1〜Lanは呼出確認表示器、３
１〜３ｎは、呼出し信号を呼出確認表示器La1〜
Lanとは別の代表表示器La1〜Lbnに印加し表示
する呼出検出回路である。４１〜４ｎはアンドゲ
ート、５はオアゲート、６はマイクロプロセツサ
（以下CPUという）、７は呼出該当箇所を表示す
る表示回路、Lc1〜Lcnはこの表示回路７によつ
て駆動される呼出該当箇所表示器、８は呼出音を
発生する呼出音発生回路、SPはスピーカ、９は
デコーダである。 The configuration of this conventional example will be explained below with reference to FIG. 1. In Fig. 1, B 1 is a handset calling circuit, B 2 is a display circuit that detects and displays calls from a handset, and B 3 is a base unit that responds to calls from a handset.
It is equipped with a circuit section that displays the corresponding location of the calling location and also sounds a ringing tone. 11 to 1n are respective call switches, 21 to 2n are latch circuits for latching the call signals from the call switches 11 to 1n, La 1 to Lan are call confirmation indicators, and 3
1 to 3n are call signal and call confirmation display La 1 to
This is a call detection circuit that applies and displays voltage to representative display devices La 1 to Lbn that are different from Lan. 41 to 4n are AND gates, 5 is an OR gate, 6 is a microprocessor (hereinafter referred to as CPU), 7 is a display circuit that displays the corresponding part of the call, and Lc 1 to Lcn are the corresponding parts of the call driven by this display circuit 7. 8 is a ring tone generating circuit that generates a ring tone, SP is a speaker, and 9 is a decoder.
次に上記従来例の動作について説明する。第１
図において、呼出しスイツチ１１を操作すると、
その信号がラツチ回路２１で保持され、呼出し確
認表示器La1が先ず点灯する。そして、この状態
は呼出検出回路３１によつて検出されるため、引
き続いて代表表示器Lb1が点灯すると同時に、子
機より呼出しがあつたことを親機B3に知らせる。
親機B3では、CPU６、デコーダ９、アンドゲー
ト４１〜４ｎ、オアゲート５の働きにより、呼出
しケ所の番号を検出し、呼出し該当箇所を判定す
る。そしてこの状態を出力し、番号表示回路７に
よつて表示器Lc1を点灯する。またこの時、呼出
音発生回路８を動作させ、呼出音をスピーカSP
から出力する。 Next, the operation of the above conventional example will be explained. 1st
In the figure, when the call switch 11 is operated,
The signal is held in the latch circuit 21 and the call confirmation indicator La 1 is first lit. Since this state is detected by the call detection circuit 31, the representative display Lb 1 subsequently lights up and at the same time informs the base unit B 3 that there is a call from the slave unit.
In base unit B3 , the CPU 6, decoder 9, AND gates 41 to 4n, and OR gate 5 work to detect the number of the calling place and determine the corresponding place to call. Then, this state is output and the number display circuit 7 lights up the display Lc1 . At this time, the ring tone generation circuit 8 is activated and the ring tone is transmitted to the speaker SP.
Output from.
しかしながら、上記の従来例において、何らか
の原因でCPU６が動作異常を起こすと、子機B1
側の呼出しが親機B3にて全く判定できないとい
う問題がある。特に病院用インターホンにおいて
は、患者側（子機側）の呼出しが、看護婦側（親
機側）に伝わらない場合、患者の生命にかかわる
重要な問題になることがあり、上記従来のインタ
ーホン装置ではきわめて不都合である。 However, in the above conventional example, if CPU 6 malfunctions for some reason, slave unit B 1
There is a problem in that the base unit B3 cannot determine the call from the other side at all. In particular, with hospital intercoms, if a call from the patient side (child unit side) is not transmitted to the nurse side (main unit side), it may cause a serious problem that could affect the patient's life. This is extremely inconvenient.
発明の目的
本発明は上記従来の欠点を除去するものであ
り、簡単な構成でCPUが異常を起した場合でも
正確に子機からの呼出しが親機に伝わる優れたイ
ンターホン装置を提供することを目的とするもの
である。Purpose of the Invention The present invention eliminates the above-mentioned conventional drawbacks, and aims to provide an excellent intercom device that has a simple configuration and can accurately transmit calls from a slave unit to a base unit even if the CPU malfunctions. This is the purpose.
発明の構成
本発明は上記目的を達成するために別にCPU
異常検出回路を設け、この異常検出回路が動作し
ている間に子機から呼出しがあつた場合、これを
優先的に呼出音発生回路に伝え呼出しを行なうよ
うに構成したものである。Structure of the Invention In order to achieve the above object, the present invention separately uses a CPU.
An abnormality detection circuit is provided, and if a call is received from a handset while the abnormality detection circuit is operating, the call is preferentially conveyed to the ringing tone generation circuit and the call is made.
実施例の説明
以下に本発明の一実施例の構成について図面と
ともに説明する。第２図において、第１図と同一
符号を付したものは第１図と同一のものを示して
いる。そして１０は、CPU６が異常を起した時
に動作するCPU異常検出回路、１Ｂは呼出検出
回路３１〜３ｎの出力を入力とするオアゲート、
１Ａはオアゲート１Ｂの出力と、CPU異常検出
回路１０の出力のアンドゲートである。DESCRIPTION OF EMBODIMENTS The configuration of an embodiment of the present invention will be described below with reference to the drawings. In FIG. 2, the same reference numerals as in FIG. 1 indicate the same components as in FIG. 10 is a CPU abnormality detection circuit that operates when an abnormality occurs in the CPU 6; 1B is an OR gate that receives the outputs of the call detection circuits 31 to 3n;
1A is an AND gate of the output of the OR gate 1B and the output of the CPU abnormality detection circuit 10.
次に上記実施例の動作について説明する。 Next, the operation of the above embodiment will be explained.
子機の呼出しスイツチ１１を操作すると、その
出力がラツチ２１で保持され、確認表示器La1が
点灯する。この状態は呼出検出回路３１によつて
検出されるため、引き続いて代表表示器Lb1が点
灯し、同時に子機から呼出しがあつたことを親機
B3に知らせる。ここまでの動作は第１図に示す
従来のインターホン装置と全く同様である。
CPU６が正常な場合は以後も第１図に示す従来
のインターホン装置と同様な動作をし、表示器
Lc1及びスピーカSPが駆動する。CPU６が異常
を起した場合には、正常時にCPU６より送出さ
れている一定時間毎のCPU正常信号がCPU異常
検出回路１０に送出されなくなるためCPU異常
検出回路１０がこれを検出して動作状態になる。
したがつてこの状態で、呼出しスイツチ１１が操
作され、呼出検出回路３１が動作すると、オアゲ
ート１Ｂの出力と、CPU異常検出回路１０の出
力がアンドゲート１Ａを通して、呼出音発生回路
８に印加され、呼出音発生回路８を動作させ、ス
ピーカSPから呼出音を出力する。従つてこのこ
とにより、親機側ではCPU６が異常な状態にお
いても、子機の呼出しを検出することができる。 When the call switch 11 of the handset is operated, its output is held by the latch 21 and the confirmation display La 1 lights up. Since this state is detected by the call detection circuit 31, the representative display Lb 1 lights up subsequently, and at the same time, the main unit indicates that there is a call from the slave unit.
Inform B3 . The operation up to this point is exactly the same as that of the conventional intercom device shown in FIG.
If the CPU 6 is normal, it will continue to operate in the same way as the conventional intercom device shown in Figure 1, and the display will
Lc 1 and speaker SP are driven. If the CPU 6 malfunctions, the CPU normal signal that is sent from the CPU 6 at regular intervals during normal operation will no longer be sent to the CPU abnormality detection circuit 10, so the CPU abnormality detection circuit 10 will detect this and enter the operating state. Become.
Therefore, in this state, when the ringing switch 11 is operated and the ringing detection circuit 31 is activated, the output of the OR gate 1B and the output of the CPU abnormality detection circuit 10 are applied to the ringing tone generating circuit 8 through the AND gate 1A. The ringing tone generating circuit 8 is operated to output a ringing tone from the speaker SP. Therefore, this allows the base unit to detect a call from the slave unit even when the CPU 6 is in an abnormal state.
尚、CPU異常検出回路１０はCPU６の異常を
検出した後、一定時間後にCPU６にリセツト信
号を送出するように構成されており、従つて
CPU６に自動的にリセツトをかけ、正常動作に
戻すこともできる。 The CPU abnormality detection circuit 10 is configured to send a reset signal to the CPU 6 after a certain period of time after detecting an abnormality in the CPU 6.
It is also possible to automatically reset the CPU 6 and return it to normal operation.
発明の効果
本発明は上記実施例より明らかなように、親機
側にマイクロプロセツサの異常を検出する回路を
設け、この検出回路の出力と各子機に接続された
呼出検出回路の出力とでアンドをとり、その出力
で別に設けた呼出音発生回路を駆動し、マイクロ
プロセツサが異常を起した場合でも上記子機から
の呼出しを検知できるように構成したものであ
り、従つて、本発明によればマイクロプロセツサ
が異常であつても子機からの呼出しを知ることが
でき、病院用インターホンとして特に有効であ
る。そして、本発明によれば単に異常検出回路、
アンド回路等を付加するだけで構成でき、全体と
してその構成が簡単で実用上きわめて有利であ
る。Effects of the Invention As is clear from the above embodiments, the present invention includes a circuit for detecting abnormalities in the microprocessor on the base unit side, and the output of this detection circuit and the output of the call detection circuit connected to each slave unit. The system is configured so that it can detect a call from the handset even if the microprocessor malfunctions by taking an AND with the output and driving a ring tone generation circuit provided separately. According to the invention, even if the microprocessor is abnormal, it is possible to recognize a call from a handset, and the invention is particularly effective as an intercom for hospitals. According to the present invention, simply an abnormality detection circuit,
It can be configured by simply adding an AND circuit, etc., and the overall configuration is simple and extremely advantageous in practice.
第１図は従来のインターホン装置のブロツク
図、第２図は本発明の一実施例におけるインター
ホン装置のブロツク図である。
１１〜１ｎ……呼出しスイツチ、２１〜２ｎ…
…ラツチ回路、La1〜Lan……呼出し確認表示器、
３１〜３ｎ……呼出し検出回路、Lb1〜Lbn……
代表表示灯、４１〜４ｎ……アンドゲート、５…
…オアゲート、６……マイクロプロセツサ、７…
…番号表示回路、８……呼出し音発生回路、９…
…デコーダ、１０……マイクロプロセツサ異常検
出回路、１Ａ……アンドゲート、１Ｂ……オアゲ
ート、Lc1〜Lcn……親機呼出し表示器、SP……
スピーカ、B1……子機呼出し回路部、B2……呼
出し表示回路部、B3……親機。
FIG. 1 is a block diagram of a conventional intercom device, and FIG. 2 is a block diagram of an intercom device according to an embodiment of the present invention. 11~1n...Call switch, 21~2n...
...Latch circuit, La 1 ~ Lan... Call confirmation indicator,
31 to 3n...Call detection circuit, Lb 1 to Lbn...
Representative indicator light, 41~4n...and gate, 5...
...Or gate, 6...Microprocessor, 7...
...Number display circuit, 8...Ring tone generation circuit, 9...
...Decoder, 10...Microprocessor abnormality detection circuit, 1A...AND gate, 1B...OR gate, Lc 1 to Lcn...Main unit call indicator, SP...
Speaker, B1 ...Slave unit calling circuit, B2 ...Call display circuit, B3 ...Base unit.
Claims (1)
出力をマイクロプロセツサを備えた親機に印加
し、上記マイクロプロセツサによつてどの子機か
ら呼出しがあつたかを検知し、上記呼出しのあつ
た子機に該当する表示器を点灯させるように構成
すると共に上記親機に上記マイクロプロセツサの
異常動作を検出する異常検出回路を設け、この検
出回路の出力と上記呼出検出回路の出力が同時に
現われたとき、別に設けた呼出音発生回路を動作
させ、上記マイクロプロセツサの異常時でも上記
呼出音発生回路の出力により子機から呼出しがあ
つたことを検知できるように構成したインターホ
ン装置。1. The output of a call detection circuit that detects a call from a slave unit is applied to a base unit equipped with a microprocessor, the microprocessor detects from which slave unit the call is made, and the process of the call is detected. The slave unit is configured to light up a corresponding display, and the base unit is provided with an abnormality detection circuit for detecting abnormal operation of the microprocessor, and the output of this detection circuit and the output of the call detection circuit are simultaneously output. When the intercom device appears, a ringing tone generating circuit provided separately is operated, and even if the microprocessor is abnormal, the intercom device is configured to be able to detect a call from the handset by the output of the ringing tone generating circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8303483A JPS59208970A (en) | 1983-05-12 | 1983-05-12 | Interphone device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8303483A JPS59208970A (en) | 1983-05-12 | 1983-05-12 | Interphone device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS59208970A JPS59208970A (en) | 1984-11-27 |
| JPH0225587B2 true JPH0225587B2 (en) | 1990-06-04 |
Family
ID=13790936
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP8303483A Granted JPS59208970A (en) | 1983-05-12 | 1983-05-12 | Interphone device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS59208970A (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH1156932A (en) * | 1997-08-26 | 1999-03-02 | Aiphone Co Ltd | Nurse call device |
-
1983
- 1983-05-12 JP JP8303483A patent/JPS59208970A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS59208970A (en) | 1984-11-27 |
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