FR2428878A2 - Procede d'autocontrole du bon fonctionnement de mini-radars anti-intrusions a effet doppler et dispositifs pour la mise en oeuvre du procede - Google Patents

Procede d'autocontrole du bon fonctionnement de mini-radars anti-intrusions a effet doppler et dispositifs pour la mise en oeuvre du procede

Info

Publication number
FR2428878A2
FR2428878A2 FR7817618A FR7817618A FR2428878A2 FR 2428878 A2 FR2428878 A2 FR 2428878A2 FR 7817618 A FR7817618 A FR 7817618A FR 7817618 A FR7817618 A FR 7817618A FR 2428878 A2 FR2428878 A2 FR 2428878A2
Authority
FR
France
Prior art keywords
diode
detector
intruder
voltage
radar
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.)
Granted
Application number
FR7817618A
Other languages
English (en)
Other versions
FR2428878B2 (fr
Inventor
Bruno Schorter
Serge Guennou
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.)
Radiotechnique Compelec RTC SA
Original Assignee
Radiotechnique Compelec RTC SA
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 Radiotechnique Compelec RTC SA filed Critical Radiotechnique Compelec RTC SA
Priority to FR7817618A priority Critical patent/FR2428878A2/fr
Publication of FR2428878A2 publication Critical patent/FR2428878A2/fr
Application granted granted Critical
Publication of FR2428878B2 publication Critical patent/FR2428878B2/fr
Granted legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B29/00—Checking or monitoring of signalling or alarm systems; Prevention or correction of operating errors, e.g. preventing unauthorised operation
    • G08B29/02—Monitoring continuously signalling or alarm systems
    • G08B29/04—Monitoring of the detection circuits
    • 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
    • G01S7/00—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00
    • G01S7/02—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00 of systems according to group G01S13/00
    • G01S7/40—Means for monitoring or calibrating

Abstract

Procédé d'autocontrôle du bon fonctionnement de mini-radars anti-intrusions comportant une diode démodulatrice séparée. La chaîne d'amplification des signaux à la fréquence Doppler est contrôlée par l'application momentanée d'une tension alternative à 50 Hz sur l'entrée de ladite chaîne reliée à l'électrode << chaude >> de la diode démodulatrice Application à la surveillance des conditions de fonctionnement des mini-radars à effet Doppler.
FR7817618A 1978-06-13 1978-06-13 Procede d'autocontrole du bon fonctionnement de mini-radars anti-intrusions a effet doppler et dispositifs pour la mise en oeuvre du procede Granted FR2428878A2 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7817618A FR2428878A2 (fr) 1978-06-13 1978-06-13 Procede d'autocontrole du bon fonctionnement de mini-radars anti-intrusions a effet doppler et dispositifs pour la mise en oeuvre du procede

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7817618A FR2428878A2 (fr) 1978-06-13 1978-06-13 Procede d'autocontrole du bon fonctionnement de mini-radars anti-intrusions a effet doppler et dispositifs pour la mise en oeuvre du procede

Publications (2)

Publication Number Publication Date
FR2428878A2 true FR2428878A2 (fr) 1980-01-11
FR2428878B2 FR2428878B2 (fr) 1982-11-26

Family

ID=9209422

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7817618A Granted FR2428878A2 (fr) 1978-06-13 1978-06-13 Procede d'autocontrole du bon fonctionnement de mini-radars anti-intrusions a effet doppler et dispositifs pour la mise en oeuvre du procede

Country Status (1)

Country Link
FR (1) FR2428878A2 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0825455A2 (fr) * 1996-08-16 1998-02-25 Fujitsu Limited Dispositif pour déterminer une panne dans un appareil radar

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3801978A (en) * 1972-07-20 1974-04-02 E Systems Inc Ultrasonic-microwave doppler intrusion alarm system

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3801978A (en) * 1972-07-20 1974-04-02 E Systems Inc Ultrasonic-microwave doppler intrusion alarm system

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0825455A2 (fr) * 1996-08-16 1998-02-25 Fujitsu Limited Dispositif pour déterminer une panne dans un appareil radar
EP0825455A3 (fr) * 1996-08-16 1998-03-04 Fujitsu Limited Dispositif pour déterminer une panne dans un appareil radar
US5841393A (en) * 1996-08-16 1998-11-24 Fujitsu Limited Failure determination device of radar apparatus

Also Published As

Publication number Publication date
FR2428878B2 (fr) 1982-11-26

Similar Documents

Publication Publication Date Title
US4625199A (en) Combination intrusion detector system having correlated ultrasonic and microwave detection sub-systems
SE7901479L (sv) Bruselimineringskrets
GB1392767A (en) Ultrasonic alarm circuit
US3863240A (en) Electromagnetic intrusion detection system
MY131094A (en) Interference detection technique.
JPS5619467A (en) Doppler radar
EP0113512B1 (fr) Détecteur de mouvement
KR860001645A (ko) 잡음 검출기
GB1537546A (en) Anti-intrusion miniradar
US4016486A (en) Land mine detector with pulse slope, width and amplitude determination channels
ES386520A1 (es) Circuito controlado en fase para estabilizar la frecuencia de un oscilador.
US4368460A (en) Dual mode moving target sensor
FR2428878A2 (fr) Procede d&#39;autocontrole du bon fonctionnement de mini-radars anti-intrusions a effet doppler et dispositifs pour la mise en oeuvre du procede
US3378834A (en) Perimeter intrusion detection system
US3617998A (en) Noise signal detector
SE8603069D0 (sv) Feldetekteringskrets
GB1492336A (en) Phase-locked-loop circuit
JPS5722576A (en) Ultrasonic type vehicle speed measuring apparatus
JPS56146381A (en) Television voice receiving device
US3108271A (en) Stabilization of sensitivity in intruder detection systems
SU542329A1 (ru) Устройство дл временной автоматической регулировки усилинени
JPS5684037A (en) Noise reducing device
JPS5689075A (en) Object detector
US3891928A (en) Vlf phase tracker with phase discretion
JPH0376055B2 (fr)