FR2335853B1 - - Google Patents
Info
- Publication number
- FR2335853B1 FR2335853B1 FR7637688A FR7637688A FR2335853B1 FR 2335853 B1 FR2335853 B1 FR 2335853B1 FR 7637688 A FR7637688 A FR 7637688A FR 7637688 A FR7637688 A FR 7637688A FR 2335853 B1 FR2335853 B1 FR 2335853B1
- Authority
- FR
- France
- 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.)
- Expired
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
- G01S15/00—Systems using the reflection or reradiation of acoustic waves, e.g. sonar systems
- G01S15/02—Systems using the reflection or reradiation of acoustic waves, e.g. sonar systems using reflection of acoustic waves
- G01S15/50—Systems of measurement, based on relative movement of the target
- G01S15/52—Discriminating between fixed and moving objects or between objects moving at different speeds
- G01S15/523—Discriminating between fixed and moving objects or between objects moving at different speeds for presence detection
- G01S15/526—Discriminating between fixed and moving objects or between objects moving at different speeds for presence detection by comparing echos in different sonar periods
Landscapes
- Engineering & Computer Science (AREA)
- Radar, Positioning & Navigation (AREA)
- Remote Sensing (AREA)
- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Computer Networks & Wireless Communication (AREA)
- General Physics & Mathematics (AREA)
- Measurement Of Velocity Or Position Using Acoustic Or Ultrasonic Waves (AREA)
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP50149810A JPS5272478A (en) | 1975-12-15 | 1975-12-15 | Supersonic switch |
| JP14982675A JPS5272480A (en) | 1975-12-15 | 1975-12-15 | Method of determining output pulse cycles from supersonic switch |
| JP6952076A JPS52152199A (en) | 1976-06-14 | 1976-06-14 | Amplifier driving system of ultrasonic pulse echo type switch |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| FR2335853A1 FR2335853A1 (fr) | 1977-07-15 |
| FR2335853B1 true FR2335853B1 (enExample) | 1981-07-10 |
Family
ID=27300068
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR7637688A Granted FR2335853A1 (fr) | 1975-12-15 | 1976-12-14 | Appareil de detection d'objets par impulsions ultrasonores |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US4131872A (enExample) |
| DE (1) | DE2656256C3 (enExample) |
| FR (1) | FR2335853A1 (enExample) |
| GB (1) | GB1568229A (enExample) |
Families Citing this family (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2818942C2 (de) | 1978-04-28 | 1986-03-27 | Zellweger Uster Ag, Uster | Verfahren zur Raumüberwachung und Vorrichtung zur Durchführung des Verfahrens |
| JPS5585272A (en) * | 1978-12-22 | 1980-06-27 | Kooa Denshi Kogyo Kk | Body confirming device |
| DE2938969C2 (de) * | 1979-09-26 | 1984-12-13 | Siemens AG, 1000 Berlin und 8000 München | Ultraschall-Raumüberwachungssystem nach dem Impuls-Echo-Verfahren |
| EP0058205B1 (en) * | 1980-08-20 | 1987-01-14 | Secom Co, Ltd. | Ultrasonic warning system |
| US4382291A (en) * | 1980-10-17 | 1983-05-03 | Secom Co., Ltd. | Surveillance system in which a reflected signal pattern is compared to a reference pattern |
| DE3226517C2 (de) * | 1982-07-15 | 1984-08-30 | Siemens AG, 1000 Berlin und 8000 München | Verfahren und Einrichtung zur Raumüberwachung durch digitale Auswertung eines komplexen Echosignals |
| GB2137749A (en) * | 1983-04-07 | 1984-10-10 | Healey Meters Limited | Intruder Detection System |
| DE3906627A1 (de) * | 1989-03-02 | 1990-09-06 | Megamos F & G Sicherheit | Verfahren und anordnung zur raumueberwachung nach dem impuls-echoverfahren |
| US5036706A (en) * | 1989-08-08 | 1991-08-06 | Web Printing Controls Co., Inc. | Sonic web break detector |
| US5269188A (en) * | 1991-07-29 | 1993-12-14 | Rosemount Inc. | Continuous self test time gate ultrasonic sensor and method |
| CN1045658C (zh) * | 1991-07-29 | 1999-10-13 | 基·雷/森索尔有限公司 | 带有自动自测功能的探测方法及其超声探测器 |
| US5428984A (en) * | 1993-08-30 | 1995-07-04 | Kay-Ray/Sensall, Inc. | Self test apparatus for ultrasonic sensor |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3474400A (en) * | 1965-03-31 | 1969-10-21 | Gen Signal Corp | Sonic presence detection system and method |
| US3500302A (en) * | 1969-01-13 | 1970-03-10 | Us Navy | Sonar bathymetry system transmit-receive sequence programmer |
-
1976
- 1976-12-09 US US05/749,072 patent/US4131872A/en not_active Expired - Lifetime
- 1976-12-09 GB GB51467/76A patent/GB1568229A/en not_active Expired
- 1976-12-11 DE DE2656256A patent/DE2656256C3/de not_active Expired
- 1976-12-14 FR FR7637688A patent/FR2335853A1/fr active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| DE2656256C3 (de) | 1979-04-05 |
| US4131872A (en) | 1978-12-26 |
| DE2656256B2 (de) | 1978-08-10 |
| DE2656256A1 (de) | 1977-06-23 |
| FR2335853A1 (fr) | 1977-07-15 |
| GB1568229A (en) | 1980-05-29 |