JPS625397U - - Google Patents
Info
- Publication number
- JPS625397U JPS625397U JP9601185U JP9601185U JPS625397U JP S625397 U JPS625397 U JP S625397U JP 9601185 U JP9601185 U JP 9601185U JP 9601185 U JP9601185 U JP 9601185U JP S625397 U JPS625397 U JP S625397U
- Authority
- JP
- Japan
- Prior art keywords
- transmission signal
- analog
- scan band
- repeater
- data
- 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
- 230000005540 biological transmission Effects 0.000 claims 4
- 238000012544 monitoring process Methods 0.000 claims 2
- 238000010586 diagram Methods 0.000 description 3
Landscapes
- Alarm Systems (AREA)
- Selective Calling Equipment (AREA)
Description
第１図は本考案の実施例の回路構成図、第２図
は本考案の基本となる自火報システムの全体回路
構成図、第３図は同上の動作説明用のタイムチヤ
ート、第４図は従来例の回路構成図であり、ｌは
回線、Ｂはスキヤン帯、ＡＤはアドレスデータ、
ＣＤはコントロールデータ、ＲＴは返送待期期間
設定パルス、ａｎはアナログ信号、ｓｔはスキヤ
ンタイミング信号、１は受信機、３はアナログ感
知器、５はアナログ中継器、６はＡ／Ｄ変換器、
８は論理処理部、９は送受信部、１０はスイツチ
手段である。
Fig. 1 is a circuit configuration diagram of an embodiment of the present invention, Fig. 2 is an overall circuit configuration diagram of the self-fire alarm system that is the basis of the invention, Fig. 3 is a time chart for explaining the operation of the same, and Fig. 4 is a circuit configuration diagram of a conventional example, l is a line, B is a scan band, AD is address data,
CD is control data, RT is a return waiting period setting pulse, an is an analog signal, st is a scan timing signal, 1 is a receiver, 3 is an analog sensor, 5 is an analog repeater, 6 is an A/D converter,
8 is a logic processing section, 9 is a transmitter/receiver section, and 10 is a switch means.
Claims (1)
介して電源が供給されるとともに、回線電圧が一
定レベルに低下されて設定されたスキヤン帯にお
いて伝送信号が送られ、受信した伝送信号のアド
レスデータと予め設定した固有のアドレスとが一
致すると伝送信号のコントロールデータに基づき
、接続してあるアナログ感知器のアナログデータ
を取り込んでＡ／Ｄ変換器で変換した感知データ
を返送信号として伝送信号の返送待期期間に監視
手段に返送させる自火報システムのアナログ中継
器において、スキヤン帯の設定タイミングを検出
する手段と、タイミングに同期させて上記Ａ／Ｄ
変換器の電源インピーダンスをスキヤン帯の間小
さくする切換手段とを備えて成ることを特徴とす
る自火報システムのアナログ中継器。 Power is supplied via the line from a monitoring means such as a receiver or trunk repeater, and the line voltage is lowered to a certain level and a transmission signal is sent in a set scan band, and the address data of the received transmission signal is When the address matches the unique address set in advance, the analog data from the connected analog sensor is taken in based on the control data of the transmission signal, and the sensed data converted by the A/D converter is used as a return signal to send the transmission signal back. In an analog repeater of a self-fire alarm system that returns signals to a monitoring means during a waiting period, there is a means for detecting the setting timing of the scan band, and a means for detecting the setting timing of the scan band, and the above-mentioned A/D in synchronization with the timing.
An analog repeater for a self-fire alarm system, comprising switching means for reducing the power supply impedance of the converter during a scan band.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1985096011U JPH0342558Y2 (en) | 1985-06-25 | 1985-06-25 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1985096011U JPH0342558Y2 (en) | 1985-06-25 | 1985-06-25 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS625397U true JPS625397U (en) | 1987-01-13 |
| JPH0342558Y2 JPH0342558Y2 (en) | 1991-09-05 |
Family
ID=30961268
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1985096011U Expired JPH0342558Y2 (en) | 1985-06-25 | 1985-06-25 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0342558Y2 (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS56128050A (en) * | 1980-03-13 | 1981-10-07 | Nec Corp | Electric power supply system |
| JPS56169493A (en) * | 1980-05-30 | 1981-12-26 | Nec Corp | Remote control system |
| JPS6065398A (en) * | 1983-09-20 | 1985-04-15 | ホーチキ株式会社 | Fire alarm |
-
1985
- 1985-06-25 JP JP1985096011U patent/JPH0342558Y2/ja not_active Expired
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS56128050A (en) * | 1980-03-13 | 1981-10-07 | Nec Corp | Electric power supply system |
| JPS56169493A (en) * | 1980-05-30 | 1981-12-26 | Nec Corp | Remote control system |
| JPS6065398A (en) * | 1983-09-20 | 1985-04-15 | ホーチキ株式会社 | Fire alarm |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0342558Y2 (en) | 1991-09-05 |
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