JPS6073529U - monitoring device - Google Patents
monitoring deviceInfo
- Publication number
- JPS6073529U JPS6073529U JP16640883U JP16640883U JPS6073529U JP S6073529 U JPS6073529 U JP S6073529U JP 16640883 U JP16640883 U JP 16640883U JP 16640883 U JP16640883 U JP 16640883U JP S6073529 U JPS6073529 U JP S6073529U
- Authority
- JP
- Japan
- Prior art keywords
- low
- frequency signal
- carrier wave
- transmitter
- response
- 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
Landscapes
- Alarm Systems (AREA)
- Selective Calling Equipment (AREA)
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
図面は本考案による装置の実施例を示し、第1図a及び
bは送信機の外観を異なる面から見た斜視図、第2図は
送信機の電気回路図、第3図a及びbは受信機の外観を
異なる面から見た斜視図、並びに第4図は受信機の電気
回路図である。
1・・・・・・送信機、14b・・・・・・水分センサ
、16・・・・・・送信アンテナ、17a・・・・・・
呼出しスイッチ、20・・・・・・低周波発振器、20
a・・・・・・スイッチ、20b・・・・・・コンデン
サ、26・・・・・・振幅変調回路、34・・・・・・
受信アンテナ、36・・・・・・ブザー、37・・・・
・・受信表示インジケータ、54・・・・・・比較器。The drawings show an embodiment of the device according to the present invention, FIGS. 1a and b are perspective views of the external appearance of the transmitter from different sides, FIG. 2 is an electrical circuit diagram of the transmitter, and FIGS. 3a and b are FIG. 4 is a perspective view of the external appearance of the receiver seen from different sides, and an electrical circuit diagram of the receiver. 1...Transmitter, 14b...Moisture sensor, 16...Transmission antenna, 17a...
Call switch, 20...Low frequency oscillator, 20
a...Switch, 20b...Capacitor, 26...Amplitude modulation circuit, 34...
Receiving antenna, 36...Buzzer, 37...
...Reception display indicator, 54...Comparator.
Claims (2)
する低周波信号発生手段と、常時一定振幅の搬送波を発
射し、前記低周波信号の発生に応じて該低周波信号によ
って振幅変調された搬送波を発射する送信手段とを有す
る送信機と、該送信機が発射する搬送波を選択受信する
受信回路手段と、該受信回路手段によって受信した信号
レベルを所定値と比較し、信号レベルが所定値以下にな
ったことを報知する報知手段とを有する受信機とを備え
ることを特徴とする監視装置。(1) A low-frequency signal generating means that generates a low-frequency signal in response to the detection of paging and excretion, and a carrier wave that constantly emits a constant amplitude carrier wave that is amplitude-modulated by the low-frequency signal in response to the generation of the low-frequency signal. a transmitter having transmitting means for emitting a carrier wave emitted by the transmitter; a receiving circuit means for selectively receiving the carrier wave emitted by the transmitter; and a signal level received by the receiving circuit means is compared with a predetermined value, 1. A monitoring device comprising: a receiver having a notification means for notifying that the value has become below a certain value.
検出に応じて互に周波数の異なる低周波信号を発生する
ことを特徴とする実用新案登録語 ′求の範囲該(1)
項記載の監視装置。(2) The low frequency signal generating means generates low frequency signals having different frequencies in response to the detection of call and excretion.
Monitoring device as described in Section.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP16640883U JPS6073529U (en) | 1983-10-27 | 1983-10-27 | monitoring device |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP16640883U JPS6073529U (en) | 1983-10-27 | 1983-10-27 | monitoring device |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS6073529U true JPS6073529U (en) | 1985-05-23 |
Family
ID=30364316
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP16640883U Pending JPS6073529U (en) | 1983-10-27 | 1983-10-27 | monitoring device |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS6073529U (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH04335813A (en) * | 1991-05-10 | 1992-11-24 | Kubota Corp | Speed control unit for paddy working machine |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS4311595Y1 (en) * | 1967-11-30 | 1968-05-20 | ||
JPS54127182A (en) * | 1978-03-10 | 1979-10-02 | Medicoteknisk Inst Svejsecen | Electronic medical appliances |
-
1983
- 1983-10-27 JP JP16640883U patent/JPS6073529U/en active Pending
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS4311595Y1 (en) * | 1967-11-30 | 1968-05-20 | ||
JPS54127182A (en) * | 1978-03-10 | 1979-10-02 | Medicoteknisk Inst Svejsecen | Electronic medical appliances |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH04335813A (en) * | 1991-05-10 | 1992-11-24 | Kubota Corp | Speed control unit for paddy working machine |
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