JPS52152253A - Road surface condition detector - Google Patents

Road surface condition detector

Info

Publication number
JPS52152253A
JPS52152253A JP6906976A JP6906976A JPS52152253A JP S52152253 A JPS52152253 A JP S52152253A JP 6906976 A JP6906976 A JP 6906976A JP 6906976 A JP6906976 A JP 6906976A JP S52152253 A JPS52152253 A JP S52152253A
Authority
JP
Japan
Prior art keywords
road surface
surface condition
condition detector
road
phenomena
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
Application number
JP6906976A
Other languages
Japanese (ja)
Inventor
Hideo Shibuya
Masahiro Watanabe
Yoshinobu Tatsuzawa
Kenzo Miura
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Panasonic Holdings Corp
Original Assignee
Matsushita Electric Industrial Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Matsushita Electric Industrial Co Ltd filed Critical Matsushita Electric Industrial Co Ltd
Priority to JP6906976A priority Critical patent/JPS52152253A/en
Publication of JPS52152253A publication Critical patent/JPS52152253A/en
Pending legal-status Critical Current

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01F—ADDITIONAL WORK, SUCH AS EQUIPPING ROADS OR THE CONSTRUCTION OF PLATFORMS, HELICOPTER LANDING STAGES, SIGNS, SNOW FENCES, OR THE LIKE
    • E01F9/00—Arrangement of road signs or traffic signals; Arrangements for enforcing caution
    • E01F9/40—Arrangements responsive to adverse atmospheric conditions, e.g. to signal icy roads or to automatically illuminate in fog; Arrangements characterised by heating or drying means

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Atmospheric Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Road Paving Structures (AREA)
  • Geophysics And Detection Of Objects (AREA)

Abstract

PURPOSE:Detection of road surface condition at high accuracy is made possible even without coating paints, etc. on road surfaces by utilizing the phenomena by which the road surface reflection factor of microwaves change largely with water wetting, freezing, etc.
JP6906976A 1976-06-11 1976-06-11 Road surface condition detector Pending JPS52152253A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP6906976A JPS52152253A (en) 1976-06-11 1976-06-11 Road surface condition detector

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP6906976A JPS52152253A (en) 1976-06-11 1976-06-11 Road surface condition detector

Publications (1)

Publication Number Publication Date
JPS52152253A true JPS52152253A (en) 1977-12-17

Family

ID=13391908

Family Applications (1)

Application Number Title Priority Date Filing Date
JP6906976A Pending JPS52152253A (en) 1976-06-11 1976-06-11 Road surface condition detector

Country Status (1)

Country Link
JP (1) JPS52152253A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2473888C1 (en) * 2011-09-22 2013-01-27 Учреждение Российской академии наук Институт проблем управления им. В.А. Трапезникова РАН Method of determining state of road surface

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2473888C1 (en) * 2011-09-22 2013-01-27 Учреждение Российской академии наук Институт проблем управления им. В.А. Трапезникова РАН Method of determining state of road surface

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