JPS51136225A - Relay device monitoring - Google Patents
Relay device monitoringInfo
- Publication number
- JPS51136225A JPS51136225A JP5974575A JP5974575A JPS51136225A JP S51136225 A JPS51136225 A JP S51136225A JP 5974575 A JP5974575 A JP 5974575A JP 5974575 A JP5974575 A JP 5974575A JP S51136225 A JPS51136225 A JP S51136225A
- Authority
- JP
- Japan
- Prior art keywords
- relay device
- device monitoring
- pecutiar
- wave
- frequency 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
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B17/00—Monitoring; Testing
- H04B17/40—Monitoring; Testing of relay systems
Landscapes
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Monitoring And Testing Of Transmission In General (AREA)
Abstract
PURPOSE:Relay device monitoring by higher frequency signal than conventional using wave detecting characteristics pecutiar to frequency modulated wave.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP5974575A JPS51136225A (en) | 1975-05-21 | 1975-05-21 | Relay device monitoring |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP5974575A JPS51136225A (en) | 1975-05-21 | 1975-05-21 | Relay device monitoring |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS51136225A true JPS51136225A (en) | 1976-11-25 |
Family
ID=13122065
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP5974575A Pending JPS51136225A (en) | 1975-05-21 | 1975-05-21 | Relay device monitoring |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS51136225A (en) |
-
1975
- 1975-05-21 JP JP5974575A patent/JPS51136225A/en active Pending
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