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System for recording dot matrix data of light emitting diode

A light-emitting diode and dot-matrix data technology, applied in optics, measuring devices, instruments, etc., can solve problems such as difficult light-emitting time, control and limited use, unstable brightness, etc., and achieve easy-to-control light-emitting time and unlimited use , the effect of stable brightness

Inactive Publication Date: 2006-07-05
XI'AN INST OF OPTICS & FINE MECHANICS - CHINESE ACAD OF SCI
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Problems solved by technology

[0009] The invention solves the technical problems of the data recording device of the high-speed movie camera in the background technology, such as large volume, unstable brightness, difficult control of light-emitting time and limited use

Method used

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  • System for recording dot matrix data of light emitting diode

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Embodiment Construction

[0017] Referring to accompanying drawing, the present invention comprises light-emitting diode dot matrix 5 and central processing unit, and wherein the anode of each light-emitting diode is connected with the row line 4 of its row, and negative pole is connected with the column line 8 of its column, and row line 4 is passed through triode 3 Connected to the row control output port 1 of the central processing unit, the emitter of the triode 3 is connected to the row line 4, the base of the triode is connected to the row control output port 1 of the central processing unit, the collector of the triode is connected to the power supply 2; the column line 8 It is connected with the dot matrix data output port 7 of the central processing unit through the power gate 6 . The central processor can choose MCS51 series single-chip microcomputer.

[0018] The light-emitting diode lattice includes hundreds of light-emitting diodes, so the structure adopts an array form, and the column lin...

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Abstract

The invention relates to a LED array data recording system used in data recording of a high speed film camera, comprising a LED array and a CPU, where the anode and cathode of each LED are connected with a corresponding line lead and a corresponding column lead, respectively, all line leads are connected through the respective transistors with a line control output port of the CPU, and all column lead are connected through the respective power gates with an array data output port of the CPU. The invention solves the technical problems of data recorders of high speed film cameras in the background technique, such as large bulk, unstable brightness, uneasy control of light emitting time and restricted use.

Description

1. Technical field [0001] The invention relates to a light-emitting diode dot matrix data recording system used for data recording of a high-speed movie camera. 2. Background technology [0002] High-speed photogrammetry is an optical measuring instrument used to measure the instantaneous attitude and coordinates of moving objects in the air. Its main body is a high-speed movie camera installed on a small theodolite to shoot targets and record related data. These data include the absolute time in Beijing at the time of filming and the spatial coordinates (azimuth and elevation) of the optical axis of the movie camera. Timely and accurate collection and recording of these data is the key to ensure the reliability and effectiveness of the instrument. [0003] The highest shooting frequency of a high-speed movie camera is 200 frames per second, and the allowable exposure time of the film is no more than one-tenth of the shooting cycle; therefore, the total time for actual data...

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Application Information

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IPC IPC(8): G03B39/00G01C11/00
Inventor 梁蕴绵原新晶
Owner XI'AN INST OF OPTICS & FINE MECHANICS - CHINESE ACAD OF SCI
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