JPS55147375A - Device for forecasting freezing of road surface - Google Patents

Device for forecasting freezing of road surface

Info

Publication number
JPS55147375A
JPS55147375A JP5584479A JP5584479A JPS55147375A JP S55147375 A JPS55147375 A JP S55147375A JP 5584479 A JP5584479 A JP 5584479A JP 5584479 A JP5584479 A JP 5584479A JP S55147375 A JPS55147375 A JP S55147375A
Authority
JP
Japan
Prior art keywords
road surface
microwave
received
freezing
data processor
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
JP5584479A
Other languages
Japanese (ja)
Inventor
Kouichi Hinokibayashi
Yasuo Itai
Susumu Ihara
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.)
Sumitomo Electric Industries Ltd
Original Assignee
Sumitomo Electric Industries 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 Sumitomo Electric Industries Ltd filed Critical Sumitomo Electric Industries Ltd
Priority to JP5584479A priority Critical patent/JPS55147375A/en
Publication of JPS55147375A publication Critical patent/JPS55147375A/en
Pending legal-status Critical Current

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Abstract

PURPOSE: To automatically forecast the transition of the road surface state by retaining the microwave transmission level constant and observing the received reflected wave level from the substance of the road surface.
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 road surface temperature, atmospheric temperature and received microwave signal so as to forecast the freezing of the road surface 1a.
COPYRIGHT: (C)1980,JPO&Japio
JP5584479A 1979-05-08 1979-05-08 Device for forecasting freezing of road surface Pending JPS55147375A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP5584479A JPS55147375A (en) 1979-05-08 1979-05-08 Device for forecasting freezing of road surface

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP5584479A JPS55147375A (en) 1979-05-08 1979-05-08 Device for forecasting freezing of road surface

Publications (1)

Publication Number Publication Date
JPS55147375A true JPS55147375A (en) 1980-11-17

Family

ID=13010317

Family Applications (1)

Application Number Title Priority Date Filing Date
JP5584479A Pending JPS55147375A (en) 1979-05-08 1979-05-08 Device for forecasting freezing of road surface

Country Status (1)

Country Link
JP (1) JPS55147375A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0875750A1 (en) * 1997-05-02 1998-11-04 Daimler-Benz Aktiengesellschaft Device for ascertaining the state of a road
WO1999053461A3 (en) * 1998-04-09 1999-12-02 Daimler Chrysler Ag System for recognizing road conditions
LU93431B1 (en) * 2016-12-27 2018-06-28 Iee Sa Polarimetric Radar System and Method for Object Classification and Road Condition Estimation in Stationary Applications

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0875750A1 (en) * 1997-05-02 1998-11-04 Daimler-Benz Aktiengesellschaft Device for ascertaining the state of a road
WO1999053461A3 (en) * 1998-04-09 1999-12-02 Daimler Chrysler Ag System for recognizing road conditions
LU93431B1 (en) * 2016-12-27 2018-06-28 Iee Sa Polarimetric Radar System and Method for Object Classification and Road Condition Estimation in Stationary Applications
WO2018122181A1 (en) * 2016-12-27 2018-07-05 Iee International Electronics & Engineering S.A. Polarimetric radar system and method for object classification and road condition estimation in stationary applications
CN110140059A (en) * 2016-12-27 2019-08-16 Iee国际电子工程股份公司 For the Changeable Polarization Radar System and method of object classification and condition of road surface estimation in stationary applications
US11567190B2 (en) 2016-12-27 2023-01-31 Iee International Electronics & Engineering S.A. Polarimetric radar system and method for object classification and road condition estimation in stationary applications

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