JPS5774629A - Estimating device for road surface temperature - Google Patents

Estimating device for road surface temperature

Info

Publication number
JPS5774629A
JPS5774629A JP15169580A JP15169580A JPS5774629A JP S5774629 A JPS5774629 A JP S5774629A JP 15169580 A JP15169580 A JP 15169580A JP 15169580 A JP15169580 A JP 15169580A JP S5774629 A JPS5774629 A JP S5774629A
Authority
JP
Japan
Prior art keywords
road surface
surface temperature
temperature
freeze
data
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
JP15169580A
Other languages
Japanese (ja)
Inventor
Tadashi Shigeno
Kenji Tamaki
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.)
Sharp Corp
Original Assignee
Sharp Corp
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 Sharp Corp filed Critical Sharp Corp
Priority to JP15169580A priority Critical patent/JPS5774629A/en
Publication of JPS5774629A publication Critical patent/JPS5774629A/en
Pending legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
    • G01K1/00—Details of thermometers not specially adapted for particular types of thermometer
    • G01K1/02—Means for indicating or recording specially adapted for thermometers

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Measuring Temperature Or Quantity Of Heat (AREA)

Abstract

PURPOSE:To cause to generate a freeze estimating signal, by a method wherein a momentary data is obtained by sampling a road surface temperature, and change in road surface temperature is expressed in a numerical manner, based on the data, to estimatedly compute a temperature which a road surface will have several hours to tens hours later. CONSTITUTION:An output of a road surface gauge 1 is produced into a digital signal via a temperature-voltage converter 2 and an A/D converter 3, and a road surface temperature data is sampled at given time intervals by means of a signal from a sampling command part 9 to store it in memory 4. A regression system computing unit 5 expresses numerically a time change in a road surface temperature by means of a regression method. Based on the results, a freeze critical decision part 6 finds that a road is brought into a freeze critical temperature after how many hours. This activates an alarm output unit 7. Thus, a short-term and a long-term freeze estimating signal can be generated using only an actual measuring data of a road surface temperature, which results in performing an estimation at a high hit rate in the prevention of a measurement error in the day time, at sunset and the like.
JP15169580A 1980-10-28 1980-10-28 Estimating device for road surface temperature Pending JPS5774629A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP15169580A JPS5774629A (en) 1980-10-28 1980-10-28 Estimating device for road surface temperature

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP15169580A JPS5774629A (en) 1980-10-28 1980-10-28 Estimating device for road surface temperature

Publications (1)

Publication Number Publication Date
JPS5774629A true JPS5774629A (en) 1982-05-10

Family

ID=15524236

Family Applications (1)

Application Number Title Priority Date Filing Date
JP15169580A Pending JPS5774629A (en) 1980-10-28 1980-10-28 Estimating device for road surface temperature

Country Status (1)

Country Link
JP (1) JPS5774629A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63128234A (en) * 1986-11-19 1988-05-31 Terumo Corp Electronic clinical thermometer
JPH02259536A (en) * 1989-03-31 1990-10-22 Yamatake Honeywell Co Ltd Method for predicting temperature variation of low temperature tank

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS54142470A (en) * 1978-04-27 1979-11-06 Tohoku Electric Power Co Forecast monitor

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS54142470A (en) * 1978-04-27 1979-11-06 Tohoku Electric Power Co Forecast monitor

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63128234A (en) * 1986-11-19 1988-05-31 Terumo Corp Electronic clinical thermometer
JPH02259536A (en) * 1989-03-31 1990-10-22 Yamatake Honeywell Co Ltd Method for predicting temperature variation of low temperature tank

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