JPS57211079A - Doppler radar type alarming device - Google Patents
Doppler radar type alarming deviceInfo
- Publication number
- JPS57211079A JPS57211079A JP56096349A JP9634981A JPS57211079A JP S57211079 A JPS57211079 A JP S57211079A JP 56096349 A JP56096349 A JP 56096349A JP 9634981 A JP9634981 A JP 9634981A JP S57211079 A JPS57211079 A JP S57211079A
- Authority
- JP
- Japan
- Prior art keywords
- alarm
- changing factor
- decided
- factor
- car
- 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
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
- G01S13/02—Systems using reflection of radio waves, e.g. primary radar systems; Analogous systems
- G01S13/50—Systems of measurement based on relative movement of target
- G01S13/52—Discriminating between fixed and moving objects or between objects moving at different speeds
- G01S13/56—Discriminating between fixed and moving objects or between objects moving at different speeds for presence detection
-
- 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
-
- 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
- G01S13/02—Systems using reflection of radio waves, e.g. primary radar systems; Analogous systems
- G01S13/50—Systems of measurement based on relative movement of target
- G01S13/52—Discriminating between fixed and moving objects or between objects moving at different speeds
-
- 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
- G01S2013/9324—Alternative operation using ultrasonic waves
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP56096349A JPS57211079A (en) | 1981-06-22 | 1981-06-22 | Doppler radar type alarming device |
GB08216882A GB2104333B (en) | 1981-06-19 | 1982-06-10 | Moving object detection and discrimination |
US06/388,704 US4543577A (en) | 1981-06-19 | 1982-06-15 | Moving obstacle detection system for a vehicle |
DE3222900A DE3222900C2 (de) | 1981-06-19 | 1982-06-18 | Vorrichtung für ein Fahrzeug zum Feststellen von sich vor dem Fahrzeug befindlichen Hindernissen |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP56096349A JPS57211079A (en) | 1981-06-22 | 1981-06-22 | Doppler radar type alarming device |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS57211079A true JPS57211079A (en) | 1982-12-24 |
Family
ID=14162520
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP56096349A Pending JPS57211079A (en) | 1981-06-19 | 1981-06-22 | Doppler radar type alarming device |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS57211079A (ja) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2004125399A (ja) * | 2002-09-30 | 2004-04-22 | Toto Ltd | 物体検知装置 |
-
1981
- 1981-06-22 JP JP56096349A patent/JPS57211079A/ja active Pending
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2004125399A (ja) * | 2002-09-30 | 2004-04-22 | Toto Ltd | 物体検知装置 |
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