JPH01146638U - - Google Patents
Info
- Publication number
- JPH01146638U JPH01146638U JP1988041943U JP4194388U JPH01146638U JP H01146638 U JPH01146638 U JP H01146638U JP 1988041943 U JP1988041943 U JP 1988041943U JP 4194388 U JP4194388 U JP 4194388U JP H01146638 U JPH01146638 U JP H01146638U
- Authority
- JP
- Japan
- Prior art keywords
- signal
- detection
- sound
- field strength
- reception abnormality
- 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
- 238000001514 detection method Methods 0.000 claims description 11
- 230000005856 abnormality Effects 0.000 claims description 5
- 230000005684 electric field Effects 0.000 claims description 3
- 230000005236 sound signal Effects 0.000 claims description 2
- 230000005540 biological transmission Effects 0.000 claims 4
- 238000010586 diagram Methods 0.000 description 2
- 230000008054 signal transmission Effects 0.000 description 1
Landscapes
- Monitoring And Testing Of Transmission In General (AREA)
Description
第１図は本考案の一実施例のブロツク図、第２
図は従来の受信異常表示装置のブロツク図である
。
２２……無線送信機、２４……受信異常出力部
、３１，３３，４９，５７……リレー、３５……
タイマリレー、３６，５１……直流電源、３７…
…受信異常表示部、３８ａ，３８ｂ……空中線系
、３９……検出信号伝送部、４３……無線受信機
、４６……電界・音声低下検出部、５２……音声
信号増幅器。
Figure 1 is a block diagram of one embodiment of the present invention;
The figure is a block diagram of a conventional reception abnormality display device. 22...Radio transmitter, 24...Reception error output unit, 31, 33, 49, 57...Relay, 35...
Timer relay, 36, 51...DC power supply, 37...
... Reception abnormality display section, 38a, 38b ... Antenna system, 39 ... Detection signal transmission section, 43 ... Radio receiver, 46 ... Electric field/audio drop detection section, 52 ... Audio signal amplifier.
Claims (1)
線受信手段と、この無線受信手段より得られる受
信電界強度に対応するレベル信号に基づき電界検
出信号の送出を制御する電界強度検出手段と、前
記無線受信手段より得られる放送音声信号に基づ
き音声検出信号の送出を制御する音声検出手段と
、前記電界強度検出手段から送出される電界検出
信号と前記音声検出手段から送出される音声検出
信号とを空中線系における信号に重畳して無線送
信機側へ伝送する伝送手段と、この伝送手段によ
り伝送された信号を検出してこの検出結果に基づ
き受信異常表示を行う受信異常表示手段とを備え
たことを特徴とする受信異常検出装置。 a radio receiving means for receiving broadcast radio waves emitted from an antenna system; a field strength detecting means for controlling transmission of an electric field detection signal based on a level signal corresponding to a received field strength obtained from the radio receiving means; and the radio receiving means. a sound detection means for controlling transmission of a sound detection signal based on a broadcast sound signal obtained from the means; an electric field detection signal sent from the field strength detection means; and a sound detection signal sent from the sound detection means; A transmission means for superimposing the signal on the signal and transmitting it to the wireless transmitter side, and a reception abnormality display means for detecting the signal transmitted by the transmission means and displaying a reception abnormality based on the detection result. Reception abnormality detection device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1988041943U JPH01146638U (en) | 1988-03-31 | 1988-03-31 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1988041943U JPH01146638U (en) | 1988-03-31 | 1988-03-31 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH01146638U true JPH01146638U (en) | 1989-10-09 |
Family
ID=31268369
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1988041943U Pending JPH01146638U (en) | 1988-03-31 | 1988-03-31 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH01146638U (en) |
-
1988
- 1988-03-31 JP JP1988041943U patent/JPH01146638U/ja active Pending