JPS5448191A - Collision preventing radar device - Google Patents

Collision preventing radar device

Info

Publication number
JPS5448191A
JPS5448191A JP11499977A JP11499977A JPS5448191A JP S5448191 A JPS5448191 A JP S5448191A JP 11499977 A JP11499977 A JP 11499977A JP 11499977 A JP11499977 A JP 11499977A JP S5448191 A JPS5448191 A JP S5448191A
Authority
JP
Japan
Prior art keywords
relative velocity
relative
decision
detected
memory
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
JP11499977A
Other languages
Japanese (ja)
Inventor
Norio Fujiki
Kiyohide Kitagawa
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.)
Nissan Motor Co Ltd
Mitsubishi Electric Corp
Original Assignee
Nissan Motor Co Ltd
Mitsubishi Electric 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 Nissan Motor Co Ltd, Mitsubishi Electric Corp filed Critical Nissan Motor Co Ltd
Priority to JP11499977A priority Critical patent/JPS5448191A/en
Publication of JPS5448191A publication Critical patent/JPS5448191A/en
Pending legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
    • G01S13/00—Systems using the reflection or reradiation of radio waves, e.g. radar systems; Analogous systems using reflection or reradiation of waves whose nature or wavelength is irrelevant or unspecified
    • G01S13/88—Radar or analogous systems specially adapted for specific applications
    • G01S13/93—Radar or analogous systems specially adapted for specific applications for anti-collision purposes
    • G01S13/931—Radar or analogous systems specially adapted for specific applications for anti-collision purposes of land vehicles

Abstract

PURPOSE:To secure an accurate decision for the collision possibility even though the detection is impossible for the relative distance or the relative velocity, by installing the memory which memorizes at least either one of the relative distance output and the relative velocity output. CONSTITUTION:When both the relative distance and the relative velocity are detected via the radar information, switch 5 is connected toward (a) to perform decision of the danger. At the same time, the relative velocity output is memorized in memory 4. However, in case only the relative distance is detected with no relative velocity detected, switch 5 is connected toward (b). And the previous relative velocity information memorized in memory 4 is used as the relative velocity of this time to perform the decision for the danger. When the both are not detected, the absence of the targets is decided to perform no decision for the collision possibility.
JP11499977A 1977-09-24 1977-09-24 Collision preventing radar device Pending JPS5448191A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP11499977A JPS5448191A (en) 1977-09-24 1977-09-24 Collision preventing radar device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP11499977A JPS5448191A (en) 1977-09-24 1977-09-24 Collision preventing radar device

Publications (1)

Publication Number Publication Date
JPS5448191A true JPS5448191A (en) 1979-04-16

Family

ID=14651785

Family Applications (1)

Application Number Title Priority Date Filing Date
JP11499977A Pending JPS5448191A (en) 1977-09-24 1977-09-24 Collision preventing radar device

Country Status (1)

Country Link
JP (1) JPS5448191A (en)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4986049A (en) * 1972-12-08 1974-08-17
JPS5177193A (en) * 1974-12-27 1976-07-03 Mitsubishi Electric Corp
JPS563214A (en) * 1979-06-18 1981-01-14 Nippon Piston Ring Co Ltd Reciprocating conveyor

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4986049A (en) * 1972-12-08 1974-08-17
JPS5177193A (en) * 1974-12-27 1976-07-03 Mitsubishi Electric Corp
JPS563214A (en) * 1979-06-18 1981-01-14 Nippon Piston Ring Co Ltd Reciprocating conveyor

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