GB1381573A - Device for the detection of moving objects - Google Patents

Device for the detection of moving objects

Info

Publication number
GB1381573A
GB1381573A GB2483573A GB2483573A GB1381573A GB 1381573 A GB1381573 A GB 1381573A GB 2483573 A GB2483573 A GB 2483573A GB 2483573 A GB2483573 A GB 2483573A GB 1381573 A GB1381573 A GB 1381573A
Authority
GB
United Kingdom
Prior art keywords
image
elements
detection
amplifier
detection elements
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.)
Expired
Application number
GB2483573A
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.)
Philips Electronics UK Ltd
Original Assignee
Philips Electronic and Associated Industries 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
Priority to DE19732325157 priority Critical patent/DE2325157C3/en
Application filed by Philips Electronic and Associated Industries Ltd filed Critical Philips Electronic and Associated Industries Ltd
Priority to GB2483573A priority patent/GB1381573A/en
Publication of GB1381573A publication Critical patent/GB1381573A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01P—MEASURING LINEAR OR ANGULAR SPEED, ACCELERATION, DECELERATION, OR SHOCK; INDICATING PRESENCE, ABSENCE, OR DIRECTION, OF MOVEMENT
    • G01P13/00—Indicating or recording presence, absence, or direction, of movement
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01P—MEASURING LINEAR OR ANGULAR SPEED, ACCELERATION, DECELERATION, OR SHOCK; INDICATING PRESENCE, ABSENCE, OR DIRECTION, OF MOVEMENT
    • G01P3/00—Measuring linear or angular speed; Measuring differences of linear or angular speeds
    • G01P3/36—Devices characterised by the use of optical means, e.g. using infrared, visible, or ultraviolet light

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Electromagnetism (AREA)
  • Power Engineering (AREA)
  • Transforming Light Signals Into Electric Signals (AREA)
  • Photometry And Measurement Of Optical Pulse Characteristics (AREA)
  • Geophysics And Detection Of Objects (AREA)

Abstract

1381573 Photo-electric object detection PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd PHILIPS GLOEILAMPENFABRIEKEN NV 24 May 1973 24835/73 Heading H4D A device for moving object detection comprises an optical imaging system and four separate detection elements arranged in line, the elements being connected in such a way that their combined output signal comprises two pulses, one positive, one negative, for the passage of each of the leading and trailing edges of the object image over the elements. In the emoodiment of Fig. 1b, holometers B1 to B4 are connected to voltage sources 3 via resistors 4. The output of the combined detectors is passed to an amplifier 5. Fig. 2 illustrates the output signal of the device as an image passes over the detectors. In this case the image is that of the earth and the device is situated on a satellite. The first positive and negative peaks are caused by the leading edge of the image travelling over the detection elements while the second peaks are due to the trailing edge of the image. The dotted curve is the signal obtained if the time for the image to cross each holometer is of the same order or shorter than the time constant of each bolometer. Further embodiments are illustrated in Figs. 6 to 8 (not shown) and a logic circuit for processing the signal from amplifier 5 is illustrated in Fig. 4 (not shown). The further embodiments utilize photo-cells or photodiodes as the detection elements.
GB2483573A 1973-05-18 1973-05-24 Device for the detection of moving objects Expired GB1381573A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
DE19732325157 DE2325157C3 (en) 1973-05-18 1973-05-18 Device for detecting moving objects
GB2483573A GB1381573A (en) 1973-05-18 1973-05-24 Device for the detection of moving objects

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19732325157 DE2325157C3 (en) 1973-05-18 1973-05-18 Device for detecting moving objects
GB2483573A GB1381573A (en) 1973-05-18 1973-05-24 Device for the detection of moving objects

Publications (1)

Publication Number Publication Date
GB1381573A true GB1381573A (en) 1975-01-22

Family

ID=25765166

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2483573A Expired GB1381573A (en) 1973-05-18 1973-05-24 Device for the detection of moving objects

Country Status (2)

Country Link
DE (1) DE2325157C3 (en)
GB (1) GB1381573A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2129639A (en) * 1979-10-19 1984-05-16 France Etat Detecting vehicles

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH617279A5 (en) * 1977-06-24 1980-05-14 Cerberus Ag
DE2848874C2 (en) * 1977-11-12 1983-02-17 Nippon Kogaku K.K., Tokyo Apparatus for determining the amount of displacement of an image generated by an optical imaging system
CH665910A5 (en) * 1982-11-12 1988-06-15 Zumbach Electronic Ag DEVICE FOR THE CONTACTLESS DETECTION OF MOTION SIZES OF A MOVING OBJECT.
DE4232864A1 (en) * 1992-09-30 1994-03-31 Thomson Brandt Gmbh Rotation angle, revolution rate and rotation direction measurement - using analogue and digital encoder with differentiation and integration of signals.

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1763978U (en) * 1958-01-21 1958-03-27 Landis & Gyr Ag PHOTOELECTRIC SENSOR ON A ROTATING SHAFT.

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2129639A (en) * 1979-10-19 1984-05-16 France Etat Detecting vehicles

Also Published As

Publication number Publication date
DE2325157C3 (en) 1981-07-23
DE2325157A1 (en) 1974-12-05
DE2325157B2 (en) 1980-12-11

Similar Documents

Publication Publication Date Title
GB1437328A (en) Sensors having recycling means
GB1536000A (en) Electronic halftone imaging system
GB1346695A (en) Exposure classification apparatus
GB1183223A (en) Method and Apparatus for the Automatic Identification of the Spacing Zones Dividing a Film Strip into Picture Areas or Frames
US4127781A (en) Scan mirror position determining system
GB1381573A (en) Device for the detection of moving objects
US3952290A (en) Read-only optical memory system
US3473036A (en) Code matrix reader
GB1337159A (en) Character recognition apparatus
GB1521268A (en) Distance detecting apparatus
US3361872A (en) Outline producing apparatus for object definition
GB1298061A (en) Improvements relating to target discriminating devices
US3328590A (en) Automatic gain control for ambient light effects
GB1062749A (en) Optical radiation tracking device
GB1169663A (en) Integrated Photosensitive Circuit
US3793523A (en) Device for the detection of moving objects
US3795811A (en) Method and means for equalizing the response of signal channels in a multiple channel improved system
GB1263080A (en) Improvements in or relating to light detector arrays
GB989527A (en) Improved information readout system
GB1275123A (en) Improvements in or relating to a telemeter, chiefly for photographic purposes
US3379883A (en) High accuracy circuitry for correcting edge errors in scanning radiometers
US2915242A (en) Automatic computing apparatus
US3457410A (en) Radiance compensation means for horizon sensors
US3726997A (en) Optical processing system
US3679815A (en) Television camera registration

Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee