JPS55147374A - Road surface monitoring device - Google Patents
Road surface monitoring deviceInfo
- Publication number
- JPS55147374A JPS55147374A JP5584379A JP5584379A JPS55147374A JP S55147374 A JPS55147374 A JP S55147374A JP 5584379 A JP5584379 A JP 5584379A JP 5584379 A JP5584379 A JP 5584379A JP S55147374 A JPS55147374 A JP S55147374A
- Authority
- JP
- Japan
- Prior art keywords
- microwave
- road surface
- received
- data processor
- transmits
- 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
- Traffic Control Systems (AREA)
Abstract
PURPOSE: To automatically identify the various road surface states by detecting the received microwave level reflected on the road surface as transmitted from a microwave transmitter.
CONSTITUTION: A microwave transmitter 5 transmits constant level of a vertically polarized microwave toward the road surface at substantially the same point as the measuring point of an infrared radiation thermometer 4. On the other hand, a microwave receiver 6 is mounted at the position where it receives the microwave regularly reflected on the road surface 1a and transmits the received microwave through a cable 7 to a data processor 8. The data processor 8 utilizes the calculating function of the microprocessor or the like to process the measured temperature and received microwave signal so as to identify the state of the road surface 1a. The identified result is indicated, for example, on an alarm indicator 9.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP5584379A JPS55147374A (en) | 1979-05-08 | 1979-05-08 | Road surface monitoring device |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP5584379A JPS55147374A (en) | 1979-05-08 | 1979-05-08 | Road surface monitoring device |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS55147374A true JPS55147374A (en) | 1980-11-17 |
Family
ID=13010284
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP5584379A Pending JPS55147374A (en) | 1979-05-08 | 1979-05-08 | Road surface monitoring device |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS55147374A (en) |
-
1979
- 1979-05-08 JP JP5584379A patent/JPS55147374A/en active Pending
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