JPS59142893U - analog alarm device - Google Patents
analog alarm deviceInfo
- Publication number
- JPS59142893U JPS59142893U JP3780383U JP3780383U JPS59142893U JP S59142893 U JPS59142893 U JP S59142893U JP 3780383 U JP3780383 U JP 3780383U JP 3780383 U JP3780383 U JP 3780383U JP S59142893 U JPS59142893 U JP S59142893U
- Authority
- JP
- Japan
- Prior art keywords
- line voltage
- receiver
- pulse
- signal
- control circuit
- 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
Abstract
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
第１図は本願考案者等が提案しているアナログ警報装置
の一例を示したブロック図、第２図は本考案の一実施例
を示した回路図、第３図は第２図 ′あ実施例の
動作を示した信号波形図である。
１：受信機、２，３：電源兼用信号線、４：端末装置、
５：アナログセンサ、６，７，１２．１５゜１７：トラ
ンジスタ、８：発光ダイオード、９：フォトトランジス
タ、１０．１１．１４：定電圧回路、１３：ダイオード
・ブリッジ、１６：端末制御回路、ＺＤＩ、Ｚｎ２．Ｚ
ｎ２：ツェナダイオード。
」 門喝１Fig. 1 is a block diagram showing an example of an analog alarm device proposed by the present inventors, Fig. 2 is a circuit diagram showing an embodiment of the present invention, and Fig. 3 is a block diagram showing an example of an analog alarm device proposed by the inventors of the present invention. FIG. 3 is a signal waveform diagram showing an example operation. 1: Receiver, 2, 3: Power supply/signal line, 4: Terminal device,
5: Analog sensor, 6, 7, 12.15° 17: Transistor, 8: Light emitting diode, 9: Phototransistor, 10.11.14: Constant voltage circuit, 13: Diode bridge, 16: Terminal control circuit, ZDI , Zn2. Z
n2: Zener diode. ” Gate cheer 1
Claims (1)
末装置を並列接続し、各端末装置には周囲の物理的現象
の変化に応じたアナログ検出信号を出力するアナログセ
ンサを接続し、受信機よりの呼出しに応じて各端末装置
はアナログ検出信号を複数ビットのディジタル信号に変
換して各ビット毎に順次受信機へ返送するアナログ警報
装置において、 前記受信機に、端末装置を呼出すアドレスコード及び前
記ディジタル信号の返送タイミングを与° える
同期パルスを含むパルス信号の反転パルス波形に応じて
線路電圧を変化させる端末呼出用線路電圧制御回路を設
け、 前記端末装置の夫々には、前記受信機による線路電圧の
変化を検出して前記アドレスコード及び同期パルスを含
むパルス信号を検出するパルス検出回路と、該パルス検
出回路で検出したパルス信号に基づいて呼出しを判別す
ると共に、自己の呼出しを判別したときに同期パルスに
基づいて前記ディジタル信号のコードビットに対応した
スイッチング信号を順次出力する端末制御回路と、該端
末制御回路から出力されたスイッチング信号によるスイ
ッチング動作で前記線路電圧を受信機による制御電圧と
は異なる他の線路電圧に変化させるデータ返送用線路電
圧制御回路とを設け、該データ返送用線路電圧制御回路
による線路電圧の変化を受信機で検出して返送データを
受信するようにしたことを特徴とするアナログ警報装置
。[Claim for Utility Model Registration] A plurality of terminal devices are connected in parallel to a pair of power signal lines drawn out from a receiver, and each terminal device outputs an analog detection signal in response to changes in surrounding physical phenomena. In the analog alarm device, an analog sensor is connected to the receiver, and each terminal device converts the analog detection signal into a multi-bit digital signal in response to a call from the receiver, and sequentially returns each bit to the receiver. A terminal calling line voltage control circuit is provided for changing the line voltage in accordance with an inverted pulse waveform of a pulse signal that includes an address code for calling the terminal device and a synchronization pulse that gives the return timing of the digital signal, and the terminal device each includes a pulse detection circuit that detects a change in line voltage caused by the receiver to detect a pulse signal including the address code and synchronization pulse, and a pulse detection circuit that determines a call based on the pulse signal detected by the pulse detection circuit. and a terminal control circuit that sequentially outputs switching signals corresponding to the code bits of the digital signal based on the synchronization pulse when determining its own call, and a switching operation based on the switching signal output from the terminal control circuit. A data return line voltage control circuit for changing the line voltage to a line voltage different from a voltage controlled by the receiver is provided, and the receiver detects a change in the line voltage caused by the data return line voltage control circuit. An analog alarm device characterized in that it receives returned data.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3780383U JPS59142893U (en) | 1983-03-16 | 1983-03-16 | analog alarm device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3780383U JPS59142893U (en) | 1983-03-16 | 1983-03-16 | analog alarm device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS59142893U true JPS59142893U (en) | 1984-09-25 |
Family
ID=30168493
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP3780383U Pending JPS59142893U (en) | 1983-03-16 | 1983-03-16 | analog alarm device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS59142893U (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS54144899A (en) * | 1978-05-04 | 1979-11-12 | Hochiki Co | Device for monitoring physically variable amount |
| JPS575194A (en) * | 1980-06-12 | 1982-01-11 | Matsushita Electric Works Ltd | Pulse code transmission system |
| JPS576749A (en) * | 1980-06-16 | 1982-01-13 | Mitsubishi Heavy Ind Ltd | Single facer |
-
1983
- 1983-03-16 JP JP3780383U patent/JPS59142893U/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS54144899A (en) * | 1978-05-04 | 1979-11-12 | Hochiki Co | Device for monitoring physically variable amount |
| JPS575194A (en) * | 1980-06-12 | 1982-01-11 | Matsushita Electric Works Ltd | Pulse code transmission system |
| JPS576749A (en) * | 1980-06-16 | 1982-01-13 | Mitsubishi Heavy Ind Ltd | Single facer |
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