JPS6433802A - Automatic spotlight chaser - Google Patents

Automatic spotlight chaser

Info

Publication number
JPS6433802A
JPS6433802A JP62191142A JP19114287A JPS6433802A JP S6433802 A JPS6433802 A JP S6433802A JP 62191142 A JP62191142 A JP 62191142A JP 19114287 A JP19114287 A JP 19114287A JP S6433802 A JPS6433802 A JP S6433802A
Authority
JP
Japan
Prior art keywords
moving object
ultrasonic
detectors
clock oscillator
spotlight
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
JP62191142A
Other languages
Japanese (ja)
Other versions
JPH0636323B2 (en
Inventor
Hiroshi Kita
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.)
Marumo Electric Co Ltd
Original Assignee
Marumo Electric Co Ltd
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 Marumo Electric Co Ltd filed Critical Marumo Electric Co Ltd
Priority to JP62191142A priority Critical patent/JPH0636323B2/en
Publication of JPS6433802A publication Critical patent/JPS6433802A/en
Publication of JPH0636323B2 publication Critical patent/JPH0636323B2/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Landscapes

  • Non-Portable Lighting Devices Or Systems Thereof (AREA)
  • Circuit Arrangement For Electric Light Sources In General (AREA)

Abstract

PURPOSE: To automatically track a moving object with high precision with a relatively simple system structure by calculating the distances between the moving object and ultrasonic detectors via the detection of the time differences between a clock oscillator and the ultrasonic detectors to determine the position of the moving object. CONSTITUTION: Ultrasonic waves are generated accurately at constant intervals by the clock oscillator 11 of an ultrasonic oscillator 4 held by a moving object 3. When the ultrasonic waves are detected by multiple ultrasonic detectors 6, 7, the time differences between ultrasonic signals and the clock oscillator of a control device 8 are detected by time difference detectors 14, 15. The time difference signals are fed to an arithmetic unit including a computer. The distance between multiple ultrasonic detectors 6, 7 is constant when it is measured at the time of installation, the positional relations between the moving object and multiple ultrasonic detectors 6, 7 are calculated by the arithmetic unit, and the position of the moving object is determined. The position signal is fed to the motor control device of a spotlight, a motor is rotated to the right or left to make the error from the present light projection direction '0', and thus the moving object can be automatically tracked.
JP62191142A 1987-07-29 1987-07-29 Spotlight automatic tracking device Expired - Lifetime JPH0636323B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP62191142A JPH0636323B2 (en) 1987-07-29 1987-07-29 Spotlight automatic tracking device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP62191142A JPH0636323B2 (en) 1987-07-29 1987-07-29 Spotlight automatic tracking device

Publications (2)

Publication Number Publication Date
JPS6433802A true JPS6433802A (en) 1989-02-03
JPH0636323B2 JPH0636323B2 (en) 1994-05-11

Family

ID=16269591

Family Applications (1)

Application Number Title Priority Date Filing Date
JP62191142A Expired - Lifetime JPH0636323B2 (en) 1987-07-29 1987-07-29 Spotlight automatic tracking device

Country Status (1)

Country Link
JP (1) JPH0636323B2 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH06215878A (en) * 1992-10-08 1994-08-05 Ushio Yuutec:Kk Lighting device automatic control device
JPH07201205A (en) * 1993-12-28 1995-08-04 Ushio Utec:Kk Stage production method
JPH0887324A (en) * 1994-09-16 1996-04-02 Nikko Denki Kogyo Kk Automatic guidance / tracking device

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5635394A (en) * 1979-08-30 1981-04-08 Matsushita Electric Works Ltd Automatic tracking apparatus

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5635394A (en) * 1979-08-30 1981-04-08 Matsushita Electric Works Ltd Automatic tracking apparatus

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH06215878A (en) * 1992-10-08 1994-08-05 Ushio Yuutec:Kk Lighting device automatic control device
JPH07201205A (en) * 1993-12-28 1995-08-04 Ushio Utec:Kk Stage production method
JPH0887324A (en) * 1994-09-16 1996-04-02 Nikko Denki Kogyo Kk Automatic guidance / tracking device

Also Published As

Publication number Publication date
JPH0636323B2 (en) 1994-05-11

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