JPS6421176U - - Google Patents
Info
- Publication number
- JPS6421176U JPS6421176U JP11347587U JP11347587U JPS6421176U JP S6421176 U JPS6421176 U JP S6421176U JP 11347587 U JP11347587 U JP 11347587U JP 11347587 U JP11347587 U JP 11347587U JP S6421176 U JPS6421176 U JP S6421176U
- Authority
- JP
- Japan
- Prior art keywords
- microphone
- output
- management location
- telephone line
- tone signal
- 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
- 230000007423 decrease Effects 0.000 claims 1
- 230000007257 malfunction Effects 0.000 claims 1
- 238000001514 detection method Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
Landscapes
- Indicating And Signalling Devices For Elevators (AREA)
- Maintenance And Inspection Apparatuses For Elevators (AREA)
Description
第１図はこの考案によるエレベーターの非常通
報装置の一実施例を示すブロツク回路図、第２図
は従来のエレベーターの非常通報装置を示すブロ
ツク回路図である。
図中、１はエレベータのかご、２はスピーカ、
３はマイクロホン、４は送話増幅器、５は受話増
幅器、６は受話検波回路、７は送話検波回路、９
は電話回線、１０は管理場所（管理会社センタ）
、１１はトーン信号受信機である。なお、図中同
一符号は同一部分を示す。
FIG. 1 is a block circuit diagram showing an embodiment of an elevator emergency notification system according to this invention, and FIG. 2 is a block circuit diagram showing a conventional elevator emergency notification system. In the figure, 1 is the elevator car, 2 is the speaker,
3 is a microphone, 4 is a transmitting amplifier, 5 is a receiving amplifier, 6 is a receiving detection circuit, 7 is a transmitting detection circuit, 9
is the telephone line, 10 is the management location (management company center)
, 11 is a tone signal receiver. Note that the same reference numerals in the figures indicate the same parts.
Claims (1)
クロホンが管理場所と電話回線を通じて接続され
ると共に、上記マイクロホンからの出力が増加す
ると上記スピーカへの入力を減少させ、上記管理
場所からの入力が増加すると上記マイクロホンか
らの出力を減少させるようにしたものにおいて、
上記電話回線に接続され上記管理場所からの受話
指示トーン信号を受信すると上記マイクロホンか
らの出力を減少させるトーン信号受信機を備えた
ことを特徴とするエレベーターの非常通報装置。 When an elevator malfunctions, the speaker and microphone in the car are connected to the management location through a telephone line, and when the output from the microphone increases, the input to the speaker decreases, and when the input from the management location increases, the microphone In those designed to reduce the output from
An emergency notification device for an elevator, comprising a tone signal receiver that is connected to the telephone line and reduces the output from the microphone when it receives a tone signal instructing to receive a call from the management location.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11347587U JPS6421176U (en) | 1987-07-24 | 1987-07-24 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11347587U JPS6421176U (en) | 1987-07-24 | 1987-07-24 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6421176U true JPS6421176U (en) | 1989-02-02 |
Family
ID=31353345
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP11347587U Pending JPS6421176U (en) | 1987-07-24 | 1987-07-24 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6421176U (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS62172850A (en) * | 1986-01-27 | 1987-07-29 | Matsushita Electric Works Ltd | Call equipment |
-
1987
- 1987-07-24 JP JP11347587U patent/JPS6421176U/ja active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS62172850A (en) * | 1986-01-27 | 1987-07-29 | Matsushita Electric Works Ltd | Call equipment |
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