JPS6073385A - Trouble detecting circuit of ultrasonic obstacle detecting apparatus - Google Patents

Trouble detecting circuit of ultrasonic obstacle detecting apparatus

Info

Publication number
JPS6073385A
JPS6073385A JP18339883A JP18339883A JPS6073385A JP S6073385 A JPS6073385 A JP S6073385A JP 18339883 A JP18339883 A JP 18339883A JP 18339883 A JP18339883 A JP 18339883A JP S6073385 A JPS6073385 A JP S6073385A
Authority
JP
Japan
Prior art keywords
receiver
trouble
output
diagnostic
comparing
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
JP18339883A
Other languages
Japanese (ja)
Inventor
Yasuyuki Akama
Toshio Yamamoto
Original Assignee
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 Mitsubishi Electric Corp filed Critical Mitsubishi Electric Corp
Priority to JP18339883A priority Critical patent/JPS6073385A/en
Publication of JPS6073385A publication Critical patent/JPS6073385A/en
Pending legal-status Critical Current

Links

Classifications

    • GPHYSICS
    • G01MEASURING; TESTING
    • G01SRADIO 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
    • G01S7/00Details of systems according to groups G01S13/00, G01S15/00, G01S17/00
    • G01S7/52Details of systems according to groups G01S13/00, G01S15/00, G01S17/00 of systems according to group G01S15/00
    • G01S7/52004Means for monitoring or calibrating

Abstract

PURPOSE:To make it possible to automatically detect the trouble of a receiver, by applying a diagnostic pulse for diagnosing trouble to a receiver, and investigating the response signal of the receiver to said pulse. CONSTITUTION:Now, when a receiver 4 gets out of order or is deteriorated, no resonance vibration is generated even if the diagnostic pulse is applied and, therefore, the output S16 of a diagnostic integration means 16 does not reach the predetermined reference value Vr2 of a diagnostic comparing means 17 and the output S17 of the comparing means 17 holds logical ''0''. Therefore, if the receiver 4 is normal and the comparing means 17 issues output S17 at every predetermined cycle T1, the output of a trouble discriminating means 18 always comes to logical ''1'' and a lamp 19a is not lighted but, when the receiver 4 gets out of order, the lamp 19a is lighted to display trouble. By this method, the trouble of a receiver can be automatically detected.
JP18339883A 1983-09-29 1983-09-29 Trouble detecting circuit of ultrasonic obstacle detecting apparatus Pending JPS6073385A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP18339883A JPS6073385A (en) 1983-09-29 1983-09-29 Trouble detecting circuit of ultrasonic obstacle detecting apparatus

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP18339883A JPS6073385A (en) 1983-09-29 1983-09-29 Trouble detecting circuit of ultrasonic obstacle detecting apparatus

Publications (1)

Publication Number Publication Date
JPS6073385A true JPS6073385A (en) 1985-04-25

Family

ID=16135078

Family Applications (1)

Application Number Title Priority Date Filing Date
JP18339883A Pending JPS6073385A (en) 1983-09-29 1983-09-29 Trouble detecting circuit of ultrasonic obstacle detecting apparatus

Country Status (1)

Country Link
JP (1) JPS6073385A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0816865A2 (en) * 1996-06-26 1998-01-07 Siemens Aktiengesellschaft Self test method for an ultrasonic time-of-flight measurement device, and device for carrying out the method
US10281566B2 (en) 2013-12-17 2019-05-07 Valeo Schalter Und Sensoren Gmbh Ultrasonic sensor device for a motor vehicle, motor vehicle and corresponding method

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0816865A2 (en) * 1996-06-26 1998-01-07 Siemens Aktiengesellschaft Self test method for an ultrasonic time-of-flight measurement device, and device for carrying out the method
EP0816865A3 (en) * 1996-06-26 1999-03-03 Siemens Aktiengesellschaft Self test method for an ultrasonic time-of-flight measurement device, and device for carrying out the method
US10281566B2 (en) 2013-12-17 2019-05-07 Valeo Schalter Und Sensoren Gmbh Ultrasonic sensor device for a motor vehicle, motor vehicle and corresponding method

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